Updates to point to excalidraw-storage-backend

* change lock label

* feat: add unlock logic for single units on pointer up

* feat: add unlock popup

* fix: linting errors

* style: padding tweaks

* style: remove redundant line

* feat: lock multiple units together

* style: tweak color & position

* feat: add highlight for locked elements

* feat: select groups correctly after unlocking

* test: update snapshots

* fix: lasso from selecting locked elements

* fix: should prevent selecting unlocked elements and setting locked id at the same time

* fix: reset hit locked id immediately when appropriate

* feat: capture locked units in delta

* test: update locking test

* feat: show lock highlight when locking (including undo/redo)

* feat: make locked highlighting consistent

* feat: show correct cursor type when moving over locked elements

* fix history

* remove `lockedUnits.singleUnits`

* tweak button

* do not render UnlockPopup if not locked element selected

* tweak actions

* refactor: simplify type

* refactor: rename type

* refactor: simplify hit element setting & checking

* fix: prefer locked over link

* rename to `activeLockedId`

* refactor: getElementAtPosition takes an optional hitelments array

* fix: avoid setting active locked id after resizing

---------

Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>

.env.production

@@ -1,5 +1,5 @@
-VITE_APP_BACKEND_V2_GET_URL=https://json.excalidraw.com/api/v2/
+VITE_APP_BACKEND_V2_GET_URL=https://ex.dylanbanta.com/api/v2/scenes/
-VITE_APP_BACKEND_V2_POST_URL=https://json.excalidraw.com/api/v2/post/
+VITE_APP_BACKEND_V2_POST_URL=https://ex.dylanbanta.com/api/v2/scenes/
 
 VITE_APP_LIBRARY_URL=https://libraries.excalidraw.com
 VITE_APP_LIBRARY_BACKEND=https://us-central1-excalidraw-room-persistence.cloudfunctions.net/libraries

.eslintrc.json

@@ -32,6 +32,12 @@
         "name": "jotai",
         "message": "Do not import from \"jotai\" directly. Use our app-specific modules (\"editor-jotai\" or \"app-jotai\")."
       }
+    ],
+    "react/jsx-no-target-blank": [
+      "error",
+      {
+        "allowReferrer": true
+      }
     ]
   }
 }

README.md

@@ -63,7 +63,7 @@ The Excalidraw editor (npm package) supports:
 - 🏗️ Customizable.
 - 📷 Image support.
 - 😀 Shape libraries support.
-- 👅 Localization (i18n) support.
+- 🌐 Localization (i18n) support.
 - 🖼️ Export to PNG, SVG & clipboard.
 - 💾 Open format - export drawings as an `.excalidraw` json file.
 - ⚒️ Wide range of tools - rectangle, circle, diamond, arrow, line, free-draw, eraser...

dev-docs/docs/@excalidraw/excalidraw/api/children-components/footer.mdx

@@ -2,7 +2,7 @@
 
 Earlier we were using `renderFooter` prop to render custom footer which was removed in [#5970](https://github.com/excalidraw/excalidraw/pull/5970). Now you can pass a `Footer` component instead to render the custom UI for footer.
 
-You will need to import the `Footer` component from the package and wrap your component with the Footer component. The `Footer` should a valid React Node.
+You will need to import the `Footer` component from the package and wrap your component with the Footer component. The `Footer` should be a valid React Node.
 
 **Usage**
 
@@ -25,7 +25,7 @@ function App() {
 }
 ```
 
-This will only for `Desktop` devices.
+This will only work for `Desktop` devices.
 
 For `mobile` you will need to render it inside the [MainMenu](#mainmenu). You can use the [`useDevice`](#useDevice) hook to check the type of device, this will be available only inside the `children` of `Excalidraw` component.
 
@@ -65,4 +65,4 @@ const App = () => (
 // Need to render when code is span across multiple components
 // in Live Code blocks editor
 render(<App />);
-```
+```

dev-docs/docs/@excalidraw/excalidraw/api/props/props.mdx

@@ -31,6 +31,7 @@ All `props` are _optional_.
 | [`generateIdForFile`](#generateidforfile) | `function` | \_ | Allows you to override `id` generation for files added on canvas |
 | [`validateEmbeddable`](#validateembeddable) | `string[]` \| `boolean` \| `RegExp` \| `RegExp[]` \| <code>((link: string) => boolean &#124; undefined)</code> | \_ | use for custom src url validation |
 | [`renderEmbeddable`](/docs/@excalidraw/excalidraw/api/props/render-props#renderEmbeddable) | `function` | \_ | Render function that can override the built-in `<iframe>` |
+| [`renderScrollbars`] | `boolean`| | `false` | Indicates whether scrollbars will be shown
 
 ### Storing custom data on Excalidraw elements
 

docker-compose.yml

@@ -19,7 +19,7 @@ services:
       - ./:/opt/node_app/app:delegated
       - ./package.json:/opt/node_app/package.json
       - ./yarn.lock:/opt/node_app/yarn.lock
-      - notused:/opt/node_app/app/node_modules
+#       - notused:/opt/node_app/app/node_modules
 
-volumes:
+# volumes:
-  notused:
+#   notused:

examples/with-script-in-browser/components/ExampleApp.scss

@@ -52,7 +52,7 @@
   transform: none;
 }
 
-.excalidraw .panelColumn {
+.excalidraw .selected-shape-actions {
   text-align: left;
 }
 

examples/with-script-in-browser/components/ExampleApp.tsx

@@ -104,6 +104,7 @@ export default function ExampleApp({
   const [viewModeEnabled, setViewModeEnabled] = useState(false);
   const [zenModeEnabled, setZenModeEnabled] = useState(false);
   const [gridModeEnabled, setGridModeEnabled] = useState(false);
+  const [renderScrollbars, setRenderScrollbars] = useState(false);
   const [blobUrl, setBlobUrl] = useState<string>("");
   const [canvasUrl, setCanvasUrl] = useState<string>("");
   const [exportWithDarkMode, setExportWithDarkMode] = useState(false);
@@ -192,6 +193,7 @@ export default function ExampleApp({
         }) => setPointerData(payload),
         viewModeEnabled,
         zenModeEnabled,
+        renderScrollbars,
         gridModeEnabled,
         theme,
         name: "Custom name of drawing",
@@ -710,6 +712,14 @@ export default function ExampleApp({
             />
             Grid mode
           </label>
+          <label>
+            <input
+              type="checkbox"
+              checked={renderScrollbars}
+              onChange={() => setRenderScrollbars(!renderScrollbars)}
+            />
+            Render scrollbars
+          </label>
           <label>
             <input
               type="checkbox"

excalidraw-app/App.tsx

@@ -47,10 +47,10 @@ import {
   share,
   youtubeIcon,
 } from "@excalidraw/excalidraw/components/icons";
-import { isElementLink } from "@excalidraw/element/elementLink";
+import { isElementLink } from "@excalidraw/element";
 import { restore, restoreAppState } from "@excalidraw/excalidraw/data/restore";
-import { newElementWith } from "@excalidraw/element/mutateElement";
+import { newElementWith } from "@excalidraw/element";
-import { isInitializedImageElement } from "@excalidraw/element/typeChecks";
+import { isInitializedImageElement } from "@excalidraw/element";
 import clsx from "clsx";
 import {
   parseLibraryTokensFromUrl,
@@ -926,16 +926,21 @@ const ExcalidrawWrapper = () => {
         <ShareDialog
           collabAPI={collabAPI}
           onExportToBackend={async () => {
-            if (excalidrawAPI) {
+            if (!excalidrawAPI) {
-              try {
+              return;
-                await onExportToBackend(
+            }
-                  excalidrawAPI.getSceneElements(),
+            try {
-                  excalidrawAPI.getAppState(),
+              const { url, errorMessage } = await exportToBackend(
-                  excalidrawAPI.getFiles(),
+                excalidrawAPI.getSceneElements(),
-                );
+                excalidrawAPI.getAppState(),
-              } catch (error: any) {
+                excalidrawAPI.getFiles(),
-                setErrorMessage(error.message);
+              );
+              if (errorMessage) {
+                throw new Error(errorMessage);
               }
+              setLatestShareableLink(url);
+            } catch (error: any) {
+              setErrorMessage(error.message);
             }
           }}
         />

excalidraw-app/collab/Collab.tsx

@@ -19,12 +19,9 @@ import {
   throttleRAF,
 } from "@excalidraw/common";
 import { decryptData } from "@excalidraw/excalidraw/data/encryption";
-import { getVisibleSceneBounds } from "@excalidraw/element/bounds";
+import { getVisibleSceneBounds } from "@excalidraw/element";
-import { newElementWith } from "@excalidraw/element/mutateElement";
+import { newElementWith } from "@excalidraw/element";
-import {
+import { isImageElement, isInitializedImageElement } from "@excalidraw/element";
-  isImageElement,
-  isInitializedImageElement,
-} from "@excalidraw/element/typeChecks";
 import { AbortError } from "@excalidraw/excalidraw/errors";
 import { t } from "@excalidraw/excalidraw/i18n";
 import { withBatchedUpdates } from "@excalidraw/excalidraw/reactUtils";

excalidraw-app/collab/Portal.tsx

@@ -1,7 +1,7 @@
 import { CaptureUpdateAction } from "@excalidraw/excalidraw";
 import { trackEvent } from "@excalidraw/excalidraw/analytics";
 import { encryptData } from "@excalidraw/excalidraw/data/encryption";
-import { newElementWith } from "@excalidraw/element/mutateElement";
+import { newElementWith } from "@excalidraw/element";
 import throttle from "lodash.throttle";
 
 import type { UserIdleState } from "@excalidraw/common";

excalidraw-app/components/AI.tsx

@@ -73,7 +73,7 @@ export const AIComponents = ({
                   </br>
                   <div>You can also try <a href="${
                     import.meta.env.VITE_APP_PLUS_LP
-                  }/plus?utm_source=excalidraw&utm_medium=app&utm_content=d2c" target="_blank" rel="noreferrer noopener">Excalidraw+</a> to get more requests.</div>
+                  }/plus?utm_source=excalidraw&utm_medium=app&utm_content=d2c" target="_blank" rel="noopener">Excalidraw+</a> to get more requests.</div>
                 </div>
                 </body>
                 </html>`,

excalidraw-app/components/DebugCanvas.tsx

@@ -18,7 +18,7 @@ import {
 } from "@excalidraw/math";
 import { isCurve } from "@excalidraw/math/curve";
 
-import type { DebugElement } from "@excalidraw/common";
+import type { DebugElement } from "@excalidraw/excalidraw/visualdebug";
 
 import type { Curve } from "@excalidraw/math";
 

excalidraw-app/components/EncryptedIcon.tsx

@@ -10,7 +10,7 @@ export const EncryptedIcon = () => {
       className="encrypted-icon tooltip"
       href="https://plus.excalidraw.com/blog/end-to-end-encryption"
       target="_blank"
-      rel="noopener noreferrer"
+      rel="noopener"
       aria-label={t("encrypted.link")}
     >
       <Tooltip label={t("encrypted.tooltip")} long={true}>

excalidraw-app/components/ExcalidrawPlusAppLink.tsx

@@ -10,7 +10,7 @@ export const ExcalidrawPlusAppLink = () => {
         import.meta.env.VITE_APP_PLUS_APP
       }?utm_source=excalidraw&utm_medium=app&utm_content=signedInUserRedirectButton#excalidraw-redirect`}
       target="_blank"
-      rel="noreferrer"
+      rel="noopener"
       className="plus-button"
     >
       Go to Excalidraw+

excalidraw-app/components/ExportToExcalidrawPlus.tsx

@@ -12,7 +12,7 @@ import {
   generateEncryptionKey,
 } from "@excalidraw/excalidraw/data/encryption";
 import { serializeAsJSON } from "@excalidraw/excalidraw/data/json";
-import { isInitializedImageElement } from "@excalidraw/element/typeChecks";
+import { isInitializedImageElement } from "@excalidraw/element";
 import { useI18n } from "@excalidraw/excalidraw/i18n";
 
 import type {

excalidraw-app/data/FileManager.ts

@@ -1,7 +1,7 @@
 import { CaptureUpdateAction } from "@excalidraw/excalidraw";
 import { compressData } from "@excalidraw/excalidraw/data/encode";
-import { newElementWith } from "@excalidraw/element/mutateElement";
+import { newElementWith } from "@excalidraw/element";
-import { isInitializedImageElement } from "@excalidraw/element/typeChecks";
+import { isInitializedImageElement } from "@excalidraw/element";
 import { t } from "@excalidraw/excalidraw/i18n";
 
 import type {

excalidraw-app/data/index.ts

@@ -9,14 +9,14 @@ import {
 } from "@excalidraw/excalidraw/data/encryption";
 import { serializeAsJSON } from "@excalidraw/excalidraw/data/json";
 import { restore } from "@excalidraw/excalidraw/data/restore";
-import { isInvisiblySmallElement } from "@excalidraw/element/sizeHelpers";
+import { isInvisiblySmallElement } from "@excalidraw/element";
-import { isInitializedImageElement } from "@excalidraw/element/typeChecks";
+import { isInitializedImageElement } from "@excalidraw/element";
 import { t } from "@excalidraw/excalidraw/i18n";
 import { bytesToHexString } from "@excalidraw/common";
 
 import type { UserIdleState } from "@excalidraw/common";
 import type { ImportedDataState } from "@excalidraw/excalidraw/data/types";
-import type { SceneBounds } from "@excalidraw/element/bounds";
+import type { SceneBounds } from "@excalidraw/element";
 import type {
   ExcalidrawElement,
   FileId,

excalidraw-app/package.json

@@ -41,8 +41,8 @@
   "prettier": "@excalidraw/prettier-config",
   "scripts": {
     "build-node": "node ./scripts/build-node.js",
-    "build:app:docker": "cross-env VITE_APP_DISABLE_SENTRY=true vite build",
+    "build:app:docker": "vite build",
-    "build:app": "cross-env VITE_APP_GIT_SHA=$VERCEL_GIT_COMMIT_SHA cross-env VITE_APP_ENABLE_TRACKING=true vite build",
+    "build:app": "vite build",
     "build:version": "node ../scripts/build-version.js",
     "build": "yarn build:app && yarn build:version",
     "start": "yarn && vite",

excalidraw-app/tests/__snapshots__/MobileMenu.test.tsx.snap

@@ -198,7 +198,7 @@ exports[`Test MobileMenu > should initialize with welcome screen and hide once u
     <a
       class="welcome-screen-menu-item "
       href="undefined/plus?utm_source=excalidraw&utm_medium=app&utm_content=welcomeScreenGuest"
-      rel="noreferrer"
+      rel="noopener"
       target="_blank"
     >
       <div

excalidraw-app/tests/collab.test.tsx

@@ -3,11 +3,15 @@ import {
   createRedoAction,
   createUndoAction,
 } from "@excalidraw/excalidraw/actions/actionHistory";
-import { syncInvalidIndices } from "@excalidraw/element/fractionalIndex";
+import { syncInvalidIndices } from "@excalidraw/element";
 import { API } from "@excalidraw/excalidraw/tests/helpers/api";
 import { act, render, waitFor } from "@excalidraw/excalidraw/tests/test-utils";
 import { vi } from "vitest";
 
+import { StoreIncrement } from "@excalidraw/element";
+
+import type { DurableIncrement, EphemeralIncrement } from "@excalidraw/element";
+
 import ExcalidrawApp from "../App";
 
 const { h } = window;
@@ -65,6 +69,79 @@ vi.mock("socket.io-client", () => {
  * i.e. multiplayer history tests could be a good first candidate, as we could test both history stacks simultaneously.
  */
 describe("collaboration", () => {
+  it("should emit two ephemeral increments even though updates get batched", async () => {
+    const durableIncrements: DurableIncrement[] = [];
+    const ephemeralIncrements: EphemeralIncrement[] = [];
+
+    await render(<ExcalidrawApp />);
+
+    h.store.onStoreIncrementEmitter.on((increment) => {
+      if (StoreIncrement.isDurable(increment)) {
+        durableIncrements.push(increment);
+      } else {
+        ephemeralIncrements.push(increment);
+      }
+    });
+
+    // eslint-disable-next-line dot-notation
+    expect(h.store["scheduledMicroActions"].length).toBe(0);
+    expect(durableIncrements.length).toBe(0);
+    expect(ephemeralIncrements.length).toBe(0);
+
+    const rectProps = {
+      type: "rectangle",
+      id: "A",
+      height: 200,
+      width: 100,
+      x: 0,
+      y: 0,
+    } as const;
+
+    const rect = API.createElement({ ...rectProps });
+
+    API.updateScene({
+      elements: [rect],
+      captureUpdate: CaptureUpdateAction.IMMEDIATELY,
+    });
+
+    await waitFor(() => {
+      // expect(commitSpy).toHaveBeenCalledTimes(1);
+      expect(durableIncrements.length).toBe(1);
+    });
+
+    // simulate two batched remote updates
+    act(() => {
+      h.app.updateScene({
+        elements: [newElementWith(h.elements[0], { x: 100 })],
+        captureUpdate: CaptureUpdateAction.NEVER,
+      });
+      h.app.updateScene({
+        elements: [newElementWith(h.elements[0], { x: 200 })],
+        captureUpdate: CaptureUpdateAction.NEVER,
+      });
+
+      // we scheduled two micro actions,
+      // which confirms they are going to be executed as part of one batched component update
+      // eslint-disable-next-line dot-notation
+      expect(h.store["scheduledMicroActions"].length).toBe(2);
+    });
+
+    await waitFor(() => {
+      // altough the updates get batched,
+      // we expect two ephemeral increments for each update,
+      // and each such update should have the expected change
+      expect(ephemeralIncrements.length).toBe(2);
+      expect(ephemeralIncrements[0].change.elements.A).toEqual(
+        expect.objectContaining({ x: 100 }),
+      );
+      expect(ephemeralIncrements[1].change.elements.A).toEqual(
+        expect.objectContaining({ x: 200 }),
+      );
+      // eslint-disable-next-line dot-notation
+      expect(h.store["scheduledMicroActions"].length).toBe(0);
+    });
+  });
+
   it("should allow to undo / redo even on force-deleted elements", async () => {
     await render(<ExcalidrawApp />);
     const rect1Props = {
@@ -122,7 +199,7 @@ describe("collaboration", () => {
       expect(h.elements).toEqual([expect.objectContaining(rect1Props)]);
     });
 
-    const undoAction = createUndoAction(h.history, h.store);
+    const undoAction = createUndoAction(h.history);
     act(() => h.app.actionManager.executeAction(undoAction));
 
     // with explicit undo (as addition) we expect our item to be restored from the snapshot!
@@ -154,7 +231,7 @@ describe("collaboration", () => {
       expect(h.elements).toEqual([expect.objectContaining(rect1Props)]);
     });
 
-    const redoAction = createRedoAction(h.history, h.store);
+    const redoAction = createRedoAction(h.history);
     act(() => h.app.actionManager.executeAction(redoAction));
 
     // with explicit redo (as removal) we again restore the element from the snapshot!

package.json

@@ -33,6 +33,7 @@
     "pepjs": "0.5.3",
     "prettier": "2.6.2",
     "rewire": "6.0.0",
+    "rimraf": "^5.0.0",
     "typescript": "4.9.4",
     "vite": "5.0.12",
     "vite-plugin-checker": "0.7.2",
@@ -78,8 +79,8 @@
     "autorelease": "node scripts/autorelease.js",
     "prerelease:excalidraw": "node scripts/prerelease.js",
     "release:excalidraw": "node scripts/release.js",
-    "rm:build": "rm -rf excalidraw-app/{build,dist,dev-dist} && rm -rf packages/*/{dist,build} && rm -rf examples/*/{build,dist}",
+    "rm:build": "rimraf --glob excalidraw-app/build excalidraw-app/dist excalidraw-app/dev-dist packages/*/dist packages/*/build examples/*/build examples/*/dist",
-    "rm:node_modules": "rm -rf node_modules && rm -rf excalidraw-app/node_modules && rm -rf packages/*/node_modules",
+    "rm:node_modules": "rimraf --glob node_modules excalidraw-app/node_modules packages/*/node_modules",
     "clean-install": "yarn rm:node_modules && yarn install"
   },
   "resolutions": {

packages/common/package.json

@@ -13,7 +13,7 @@
       "default": "./dist/prod/index.js"
     },
     "./*": {
-      "types": "./../common/dist/types/common/src/*.d.ts"
+      "types": "./dist/types/common/src/*.d.ts"
     }
   },
   "files": [
@@ -50,7 +50,7 @@
   "bugs": "https://github.com/excalidraw/excalidraw/issues",
   "repository": "https://github.com/excalidraw/excalidraw",
   "scripts": {
-    "gen:types": "rm -rf types && tsc",
+    "gen:types": "rimraf types && tsc",
-    "build:esm": "rm -rf dist && node ../../scripts/buildBase.js && yarn gen:types"
+    "build:esm": "rimraf dist && node ../../scripts/buildBase.js && yarn gen:types"
   }
 }

packages/common/src/constants.ts

@@ -10,6 +10,7 @@ export const isDarwin = /Mac|iPod|iPhone|iPad/.test(navigator.platform);
 export const isWindows = /^Win/.test(navigator.platform);
 export const isAndroid = /\b(android)\b/i.test(navigator.userAgent);
 export const isFirefox =
+  typeof window !== "undefined" &&
   "netscape" in window &&
   navigator.userAgent.indexOf("rv:") > 1 &&
   navigator.userAgent.indexOf("Gecko") > 1;
@@ -112,12 +113,14 @@ export const YOUTUBE_STATES = {
 export const ENV = {
   TEST: "test",
   DEVELOPMENT: "development",
+  PRODUCTION: "production",
 };
 
 export const CLASSES = {
   SHAPE_ACTIONS_MENU: "App-menu__left",
   ZOOM_ACTIONS: "zoom-actions",
   SEARCH_MENU_INPUT_WRAPPER: "layer-ui__search-inputWrapper",
+  CONVERT_ELEMENT_TYPE_POPUP: "ConvertElementTypePopup",
 };
 
 export const CJK_HAND_DRAWN_FALLBACK_FONT = "Xiaolai";
@@ -141,6 +144,7 @@ export const FONT_FAMILY = {
   "Lilita One": 7,
   "Comic Shanns": 8,
   "Liberation Sans": 9,
+  Assistant: 10,
 };
 
 export const FONT_FAMILY_FALLBACKS = {
@@ -252,7 +256,7 @@ export const EXPORT_DATA_TYPES = {
   excalidrawClipboardWithAPI: "excalidraw-api/clipboard",
 } as const;
 
-export const EXPORT_SOURCE =
+export const getExportSource = () =>
   window.EXCALIDRAW_EXPORT_SOURCE || window.location.origin;
 
 // time in milliseconds
@@ -318,6 +322,9 @@ export const DEFAULT_MAX_IMAGE_WIDTH_OR_HEIGHT = 1440;
 export const MAX_ALLOWED_FILE_BYTES = 4 * 1024 * 1024;
 
 export const SVG_NS = "http://www.w3.org/2000/svg";
+export const SVG_DOCUMENT_PREAMBLE = `<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+`;
 
 export const ENCRYPTION_KEY_BITS = 128;
 

packages/common/src/emitter.ts

@@ -1,4 +1,4 @@
-import type { UnsubscribeCallback } from "./types";
+import type { UnsubscribeCallback } from "@excalidraw/excalidraw/types";
 
 type Subscriber<T extends any[]> = (...payload: T) => void;
 

packages/common/src/font-metadata.ts

@@ -22,8 +22,10 @@ export interface FontMetadata {
   };
   /** flag to indicate a deprecated font */
   deprecated?: true;
-  /** flag to indicate a server-side only font */
+  /**
-  serverSide?: true;
+   * whether this is a font that users can use (= shown in font picker)
+   */
+  private?: true;
   /** flag to indiccate a local-only font */
   local?: true;
   /** flag to indicate a fallback font */
@@ -44,7 +46,7 @@ export const FONT_METADATA: Record<number, FontMetadata> = {
       unitsPerEm: 1000,
       ascender: 1011,
       descender: -353,
-      lineHeight: 1.35,
+      lineHeight: 1.25,
     },
   },
   [FONT_FAMILY["Lilita One"]]: {
@@ -98,14 +100,23 @@ export const FONT_METADATA: Record<number, FontMetadata> = {
       descender: -434,
       lineHeight: 1.15,
     },
-    serverSide: true,
+    private: true,
+  },
+  [FONT_FAMILY.Assistant]: {
+    metrics: {
+      unitsPerEm: 2048,
+      ascender: 1021,
+      descender: -287,
+      lineHeight: 1.25,
+    },
+    private: true,
   },
   [FONT_FAMILY_FALLBACKS.Xiaolai]: {
     metrics: {
       unitsPerEm: 1000,
       ascender: 880,
       descender: -144,
-      lineHeight: 1.15,
+      lineHeight: 1.25,
     },
     fallback: true,
   },

packages/common/src/index.ts

@@ -9,4 +9,4 @@ export * from "./promise-pool";
 export * from "./random";
 export * from "./url";
 export * from "./utils";
-export * from "./visualdebug";
+export * from "./emitter";

packages/common/src/utility-types.ts

@@ -68,3 +68,12 @@ export type MaybePromise<T> = T | Promise<T>;
 
 // get union of all keys from the union of types
 export type AllPossibleKeys<T> = T extends any ? keyof T : never;
+
+/** Strip all the methods or functions from a type */
+export type DTO<T> = {
+  [K in keyof T as T[K] extends Function ? never : K]: T[K];
+};
+
+export type MapEntry<M extends Map<any, any>> = M extends Map<infer K, infer V>
+  ? [K, V]
+  : never;

packages/common/src/utils.test.ts

@@ -0,0 +1,82 @@
+import {
+  isTransparent,
+  mapFind,
+  reduceToCommonValue,
+} from "@excalidraw/common";
+
+describe("@excalidraw/common/utils", () => {
+  describe("isTransparent()", () => {
+    it("should return true when color is rgb transparent", () => {
+      expect(isTransparent("#ff00")).toEqual(true);
+      expect(isTransparent("#fff00000")).toEqual(true);
+      expect(isTransparent("transparent")).toEqual(true);
+    });
+
+    it("should return false when color is not transparent", () => {
+      expect(isTransparent("#ced4da")).toEqual(false);
+    });
+  });
+
+  describe("reduceToCommonValue()", () => {
+    it("should return the common value when all values are the same", () => {
+      expect(reduceToCommonValue([1, 1])).toEqual(1);
+      expect(reduceToCommonValue([0, 0])).toEqual(0);
+      expect(reduceToCommonValue(["a", "a"])).toEqual("a");
+      expect(reduceToCommonValue(new Set([1]))).toEqual(1);
+      expect(reduceToCommonValue([""])).toEqual("");
+      expect(reduceToCommonValue([0])).toEqual(0);
+
+      const o = {};
+      expect(reduceToCommonValue([o, o])).toEqual(o);
+
+      expect(
+        reduceToCommonValue([{ a: 1 }, { a: 1, b: 2 }], (o) => o.a),
+      ).toEqual(1);
+      expect(
+        reduceToCommonValue(new Set([{ a: 1 }, { a: 1, b: 2 }]), (o) => o.a),
+      ).toEqual(1);
+    });
+
+    it("should return `null` when values are different", () => {
+      expect(reduceToCommonValue([1, 2, 3])).toEqual(null);
+      expect(reduceToCommonValue(new Set([1, 2]))).toEqual(null);
+      expect(reduceToCommonValue([{ a: 1 }, { a: 2 }], (o) => o.a)).toEqual(
+        null,
+      );
+    });
+
+    it("should return `null` when some values are nullable", () => {
+      expect(reduceToCommonValue([1, null, 1])).toEqual(null);
+      expect(reduceToCommonValue([null, 1])).toEqual(null);
+      expect(reduceToCommonValue([1, undefined])).toEqual(null);
+      expect(reduceToCommonValue([undefined, 1])).toEqual(null);
+      expect(reduceToCommonValue([null])).toEqual(null);
+      expect(reduceToCommonValue([undefined])).toEqual(null);
+      expect(reduceToCommonValue([])).toEqual(null);
+    });
+  });
+
+  describe("mapFind()", () => {
+    it("should return the first mapped non-null element", () => {
+      {
+        let counter = 0;
+
+        const result = mapFind(["a", "b", "c"], (value) => {
+          counter++;
+          return value === "b" ? 42 : null;
+        });
+        expect(result).toEqual(42);
+        expect(counter).toBe(2);
+      }
+
+      expect(mapFind([1, 2], (value) => value * 0)).toBe(0);
+      expect(mapFind([1, 2], () => false)).toBe(false);
+      expect(mapFind([1, 2], () => "")).toBe("");
+    });
+
+    it("should return undefined if no mapped element is found", () => {
+      expect(mapFind([1, 2], () => undefined)).toBe(undefined);
+      expect(mapFind([1, 2], () => null)).toBe(undefined);
+    });
+  });
+});

packages/common/src/utils.ts

@@ -1,9 +1,10 @@
-import { average } from "@excalidraw/math";
+import { average, pointFrom, type GlobalPoint } from "@excalidraw/math";
 
 import type {
   ExcalidrawBindableElement,
   FontFamilyValues,
   FontString,
+  ExcalidrawElement,
 } from "@excalidraw/element/types";
 
 import type {
@@ -543,6 +544,20 @@ export const findLastIndex = <T>(
   return -1;
 };
 
+/** returns the first non-null mapped value */
+export const mapFind = <T, K>(
+  collection: readonly T[],
+  iteratee: (value: T, index: number) => K | undefined | null,
+): K | undefined => {
+  for (let idx = 0; idx < collection.length; idx++) {
+    const result = iteratee(collection[idx], idx);
+    if (result != null) {
+      return result;
+    }
+  }
+  return undefined;
+};
+
 export const isTransparent = (color: string) => {
   const isRGBTransparent = color.length === 5 && color.substr(4, 1) === "0";
   const isRRGGBBTransparent = color.length === 9 && color.substr(7, 2) === "00";
@@ -679,7 +694,7 @@ export const arrayToMap = <T extends { id: string } | string>(
   return items.reduce((acc: Map<string, T>, element) => {
     acc.set(typeof element === "string" ? element : element.id, element);
     return acc;
-  }, new Map());
+  }, new Map() as Map<string, T>);
 };
 
 export const arrayToMapWithIndex = <T extends { id: string }>(
@@ -734,10 +749,31 @@ export const arrayToList = <T>(array: readonly T[]): Node<T>[] =>
     return acc;
   }, [] as Node<T>[]);
 
+/**
+ * Converts a readonly array or map into an iterable.
+ * Useful for avoiding entry allocations when iterating object / map on each iteration.
+ */
+export const toIterable = <T>(
+  values: readonly T[] | ReadonlyMap<string, T>,
+): Iterable<T> => {
+  return Array.isArray(values) ? values : values.values();
+};
+
+/**
+ * Converts a readonly array or map into an array.
+ */
+export const toArray = <T>(
+  values: readonly T[] | ReadonlyMap<string, T>,
+): T[] => {
+  return Array.isArray(values) ? values : Array.from(toIterable(values));
+};
+
 export const isTestEnv = () => import.meta.env.MODE === ENV.TEST;
 
 export const isDevEnv = () => import.meta.env.MODE === ENV.DEVELOPMENT;
 
+export const isProdEnv = () => import.meta.env.MODE === ENV.PRODUCTION;
+
 export const isServerEnv = () =>
   typeof process !== "undefined" && !!process?.env?.NODE_ENV;
 
@@ -1201,3 +1237,60 @@ export const escapeDoubleQuotes = (str: string) => {
 
 export const castArray = <T>(value: T | T[]): T[] =>
   Array.isArray(value) ? value : [value];
+
+export const elementCenterPoint = (
+  element: ExcalidrawElement,
+  xOffset: number = 0,
+  yOffset: number = 0,
+) => {
+  const { x, y, width, height } = element;
+
+  const centerXPoint = x + width / 2 + xOffset;
+
+  const centerYPoint = y + height / 2 + yOffset;
+
+  return pointFrom<GlobalPoint>(centerXPoint, centerYPoint);
+};
+
+/** hack for Array.isArray type guard not working with readonly value[] */
+export const isReadonlyArray = (value?: any): value is readonly any[] => {
+  return Array.isArray(value);
+};
+
+export const sizeOf = (
+  value:
+    | readonly unknown[]
+    | Readonly<Map<string, unknown>>
+    | Readonly<Record<string, unknown>>
+    | ReadonlySet<unknown>,
+): number => {
+  return isReadonlyArray(value)
+    ? value.length
+    : value instanceof Map || value instanceof Set
+    ? value.size
+    : Object.keys(value).length;
+};
+
+export const reduceToCommonValue = <T, R = T>(
+  collection: readonly T[] | ReadonlySet<T>,
+  getValue?: (item: T) => R,
+): R | null => {
+  if (sizeOf(collection) === 0) {
+    return null;
+  }
+
+  const valueExtractor = getValue || ((item: T) => item as unknown as R);
+
+  let commonValue: R | null = null;
+
+  for (const item of collection) {
+    const value = valueExtractor(item);
+    if ((commonValue === null || commonValue === value) && value != null) {
+      commonValue = value;
+    } else {
+      return null;
+    }
+  }
+
+  return commonValue;
+};

packages/element/package.json

@@ -13,7 +13,7 @@
       "default": "./dist/prod/index.js"
     },
     "./*": {
-      "types": "./../element/dist/types/element/src/*.d.ts"
+      "types": "./dist/types/element/src/*.d.ts"
     }
   },
   "files": [
@@ -50,7 +50,7 @@
   "bugs": "https://github.com/excalidraw/excalidraw/issues",
   "repository": "https://github.com/excalidraw/excalidraw",
   "scripts": {
-    "gen:types": "rm -rf types && tsc",
+    "gen:types": "rimraf types && tsc",
-    "build:esm": "rm -rf dist && node ../../scripts/buildBase.js && yarn gen:types"
+    "build:esm": "rimraf dist && node ../../scripts/buildBase.js && yarn gen:types"
   }
 }

packages/element/src/Scene.ts

@@ -6,20 +6,22 @@ import {
   toBrandedType,
   isDevEnv,
   isTestEnv,
+  toArray,
 } from "@excalidraw/common";
 import { isNonDeletedElement } from "@excalidraw/element";
-import { isFrameLikeElement } from "@excalidraw/element/typeChecks";
+import { isFrameLikeElement } from "@excalidraw/element";
-import { getElementsInGroup } from "@excalidraw/element/groups";
+import { getElementsInGroup } from "@excalidraw/element";
 
 import {
   syncInvalidIndices,
   syncMovedIndices,
   validateFractionalIndices,
-} from "@excalidraw/element/fractionalIndex";
+} from "@excalidraw/element";
 
-import { getSelectedElements } from "@excalidraw/element/selection";
+import { getSelectedElements } from "@excalidraw/element";
+
+import { mutateElement, type ElementUpdate } from "@excalidraw/element";
 
-import type { LinearElementEditor } from "@excalidraw/element/linearElementEditor";
 import type {
   ExcalidrawElement,
   NonDeletedExcalidrawElement,
@@ -32,12 +34,13 @@ import type {
   Ordered,
 } from "@excalidraw/element/types";
 
-import type { Assert, SameType } from "@excalidraw/common/utility-types";
+import type {
+  Assert,
+  Mutable,
+  SameType,
+} from "@excalidraw/common/utility-types";
 
-import type { AppState } from "../types";
+import type { AppState } from "../../excalidraw/types";
-
-type ElementIdKey = InstanceType<typeof LinearElementEditor>["elementId"];
-type ElementKey = ExcalidrawElement | ElementIdKey;
 
 type SceneStateCallback = () => void;
 type SceneStateCallbackRemover = () => void;
@@ -102,44 +105,7 @@ const hashSelectionOpts = (
 // in our codebase
 export type ExcalidrawElementsIncludingDeleted = readonly ExcalidrawElement[];
 
-const isIdKey = (elementKey: ElementKey): elementKey is ElementIdKey => {
+export class Scene {
-  if (typeof elementKey === "string") {
-    return true;
-  }
-  return false;
-};
-
-class Scene {
-  // ---------------------------------------------------------------------------
-  // static methods/props
-  // ---------------------------------------------------------------------------
-
-  private static sceneMapByElement = new WeakMap<ExcalidrawElement, Scene>();
-  private static sceneMapById = new Map<string, Scene>();
-
-  static mapElementToScene(elementKey: ElementKey, scene: Scene) {
-    if (isIdKey(elementKey)) {
-      // for cases where we don't have access to the element object
-      // (e.g. restore serialized appState with id references)
-      this.sceneMapById.set(elementKey, scene);
-    } else {
-      this.sceneMapByElement.set(elementKey, scene);
-      // if mapping element objects, also cache the id string when later
-      // looking up by id alone
-      this.sceneMapById.set(elementKey.id, scene);
-    }
-  }
-
-  /**
-   * @deprecated pass down `app.scene` and use it directly
-   */
-  static getScene(elementKey: ElementKey): Scene | null {
-    if (isIdKey(elementKey)) {
-      return this.sceneMapById.get(elementKey) || null;
-    }
-    return this.sceneMapByElement.get(elementKey) || null;
-  }
-
   // ---------------------------------------------------------------------------
   // instance methods/props
   // ---------------------------------------------------------------------------
@@ -198,6 +164,12 @@ class Scene {
     return this.frames;
   }
 
+  constructor(elements: ElementsMapOrArray | null = null) {
+    if (elements) {
+      this.replaceAllElements(elements);
+    }
+  }
+
   getSelectedElements(opts: {
     // NOTE can be ommitted by making Scene constructor require App instance
     selectedElementIds: AppState["selectedElementIds"];
@@ -292,11 +264,8 @@ class Scene {
   }
 
   replaceAllElements(nextElements: ElementsMapOrArray) {
-    const _nextElements =
+    // we do trust the insertion order on the map, though maybe we shouldn't and should prefer order defined by fractional indices
-      // ts doesn't like `Array.isArray` of `instanceof Map`
+    const _nextElements = toArray(nextElements);
-      nextElements instanceof Array
-        ? nextElements
-        : Array.from(nextElements.values());
     const nextFrameLikes: ExcalidrawFrameLikeElement[] = [];
 
     validateIndicesThrottled(_nextElements);
@@ -308,7 +277,6 @@ class Scene {
         nextFrameLikes.push(element);
       }
       this.elementsMap.set(element.id, element);
-      Scene.mapElementToScene(element, this);
     });
     const nonDeletedElements = getNonDeletedElements(this.elements);
     this.nonDeletedElements = nonDeletedElements.elements;
@@ -353,12 +321,6 @@ class Scene {
     this.selectedElementsCache.elements = null;
     this.selectedElementsCache.cache.clear();
 
-    Scene.sceneMapById.forEach((scene, elementKey) => {
-      if (scene === this) {
-        Scene.sceneMapById.delete(elementKey);
-      }
-    });
-
     // done not for memory leaks, but to guard against possible late fires
     // (I guess?)
     this.callbacks.clear();
@@ -455,6 +417,40 @@ class Scene {
     // then, check if the id is a group
     return getElementsInGroup(elementsMap, id);
   };
-}
 
-export default Scene;
+  // Mutate an element with passed updates and trigger the component to update. Make sure you
+  // are calling it either from a React event handler or within unstable_batchedUpdates().
+  mutateElement<TElement extends Mutable<ExcalidrawElement>>(
+    element: TElement,
+    updates: ElementUpdate<TElement>,
+    options: {
+      informMutation: boolean;
+      isDragging: boolean;
+    } = {
+      informMutation: true,
+      isDragging: false,
+    },
+  ) {
+    const elementsMap = this.getNonDeletedElementsMap();
+
+    const { version: prevVersion } = element;
+    const { version: nextVersion } = mutateElement(
+      element,
+      elementsMap,
+      updates,
+      options,
+    );
+
+    if (
+      // skip if the element is not in the scene (i.e. selection)
+      this.elementsMap.has(element.id) &&
+      // skip if the element's version hasn't changed, as mutateElement returned the same element
+      prevVersion !== nextVersion &&
+      options.informMutation
+    ) {
+      this.triggerUpdate();
+    }
+
+    return element;
+  }
+}

packages/element/src/Shape.ts

@@ -437,12 +437,26 @@ export const _generateElementShape = (
         : [pointFrom<LocalPoint>(0, 0)];
 
       if (isElbowArrow(element)) {
-        shape = [
+        // NOTE (mtolmacs): Temporary fix for extremely big arrow shapes
-          generator.path(
+        if (
-            generateElbowArrowShape(points, 16),
+          !points.every(
-            generateRoughOptions(element, true),
+            (point) => Math.abs(point[0]) <= 1e6 && Math.abs(point[1]) <= 1e6,
-          ),
+          )
-        ];
+        ) {
+          console.error(
+            `Elbow arrow with extreme point positions detected. Arrow not rendered.`,
+            element.id,
+            JSON.stringify(points),
+          );
+          shape = [];
+        } else {
+          shape = [
+            generator.path(
+              generateElbowArrowShape(points, 16),
+              generateRoughOptions(element, true),
+            ),
+          ];
+        }
       } else if (!element.roundness) {
         // curve is always the first element
         // this simplifies finding the curve for an element

packages/element/src/align.ts

@@ -1,12 +1,11 @@
-import type Scene from "@excalidraw/excalidraw/scene/Scene";
-
 import { updateBoundElements } from "./binding";
 import { getCommonBoundingBox } from "./bounds";
-import { mutateElement } from "./mutateElement";
 import { getMaximumGroups } from "./groups";
 
+import type { Scene } from "./Scene";
+
 import type { BoundingBox } from "./bounds";
-import type { ElementsMap, ExcalidrawElement } from "./types";
+import type { ExcalidrawElement } from "./types";
 
 export interface Alignment {
   position: "start" | "center" | "end";
@@ -15,10 +14,10 @@ export interface Alignment {
 
 export const alignElements = (
   selectedElements: ExcalidrawElement[],
-  elementsMap: ElementsMap,
   alignment: Alignment,
   scene: Scene,
 ): ExcalidrawElement[] => {
+  const elementsMap = scene.getNonDeletedElementsMap();
   const groups: ExcalidrawElement[][] = getMaximumGroups(
     selectedElements,
     elementsMap,
@@ -33,12 +32,13 @@ export const alignElements = (
     );
     return group.map((element) => {
       // update element
-      const updatedEle = mutateElement(element, {
+      const updatedEle = scene.mutateElement(element, {
         x: element.x + translation.x,
         y: element.y + translation.y,
       });
+
       // update bound elements
-      updateBoundElements(element, scene.getNonDeletedElementsMap(), {
+      updateBoundElements(element, scene, {
         simultaneouslyUpdated: group,
       });
       return updatedEle;

packages/element/src/bounds.ts

@@ -1,12 +1,17 @@
 import rough from "roughjs/bin/rough";
 
-import { rescalePoints, arrayToMap, invariant } from "@excalidraw/common";
+import {
+  arrayToMap,
+  invariant,
+  rescalePoints,
+  sizeOf,
+} from "@excalidraw/common";
 
 import {
   degreesToRadians,
   lineSegment,
-  pointFrom,
   pointDistance,
+  pointFrom,
   pointFromArray,
   pointRotateRads,
 } from "@excalidraw/math";
@@ -28,8 +33,8 @@ import type { AppState } from "@excalidraw/excalidraw/types";
 
 import type { Mutable } from "@excalidraw/common/utility-types";
 
-import { ShapeCache } from "./ShapeCache";
 import { generateRoughOptions } from "./Shape";
+import { ShapeCache } from "./ShapeCache";
 import { LinearElementEditor } from "./linearElementEditor";
 import { getBoundTextElement, getContainerElement } from "./textElement";
 import {
@@ -47,19 +52,20 @@ import {
   deconstructRectanguloidElement,
 } from "./utils";
 
-import type {
-  ExcalidrawElement,
-  ExcalidrawLinearElement,
-  Arrowhead,
-  ExcalidrawFreeDrawElement,
-  NonDeleted,
-  ExcalidrawTextElementWithContainer,
-  ElementsMap,
-  ExcalidrawRectanguloidElement,
-  ExcalidrawEllipseElement,
-} from "./types";
 import type { Drawable, Op } from "roughjs/bin/core";
 import type { Point as RoughPoint } from "roughjs/bin/geometry";
+import type {
+  Arrowhead,
+  ElementsMap,
+  ElementsMapOrArray,
+  ExcalidrawElement,
+  ExcalidrawEllipseElement,
+  ExcalidrawFreeDrawElement,
+  ExcalidrawLinearElement,
+  ExcalidrawRectanguloidElement,
+  ExcalidrawTextElementWithContainer,
+  NonDeleted,
+} from "./types";
 
 export type RectangleBox = {
   x: number;
@@ -938,10 +944,10 @@ export const getElementBounds = (
 };
 
 export const getCommonBounds = (
-  elements: readonly ExcalidrawElement[],
+  elements: ElementsMapOrArray,
   elementsMap?: ElementsMap,
 ): Bounds => {
-  if (!elements.length) {
+  if (!sizeOf(elements)) {
     return [0, 0, 0, 0];
   }
 

packages/element/src/collision.ts

@@ -1,4 +1,4 @@
-import { isTransparent } from "@excalidraw/common";
+import { isTransparent, elementCenterPoint } from "@excalidraw/common";
 import {
   curveIntersectLineSegment,
   isPointWithinBounds,
@@ -16,7 +16,7 @@ import {
 } from "@excalidraw/math/ellipse";
 
 import { isPointInShape, isPointOnShape } from "@excalidraw/utils/collision";
-import { getPolygonShape } from "@excalidraw/utils/shape";
+import { type GeometricShape, getPolygonShape } from "@excalidraw/utils/shape";
 
 import type {
   GlobalPoint,
@@ -26,8 +26,6 @@ import type {
   Radians,
 } from "@excalidraw/math";
 
-import type { GeometricShape } from "@excalidraw/utils/shape";
-
 import type { FrameNameBounds } from "@excalidraw/excalidraw/types";
 
 import { getBoundTextShape, isPathALoop } from "./shapes";
@@ -191,10 +189,7 @@ const intersectRectanguloidWithLineSegment = (
   l: LineSegment<GlobalPoint>,
   offset: number = 0,
 ): GlobalPoint[] => {
-  const center = pointFrom<GlobalPoint>(
+  const center = elementCenterPoint(element);
-    element.x + element.width / 2,
-    element.y + element.height / 2,
-  );
   // To emulate a rotated rectangle we rotate the point in the inverse angle
   // instead. It's all the same distance-wise.
   const rotatedA = pointRotateRads<GlobalPoint>(
@@ -253,10 +248,7 @@ const intersectDiamondWithLineSegment = (
   l: LineSegment<GlobalPoint>,
   offset: number = 0,
 ): GlobalPoint[] => {
-  const center = pointFrom<GlobalPoint>(
+  const center = elementCenterPoint(element);
-    element.x + element.width / 2,
-    element.y + element.height / 2,
-  );
 
   // Rotate the point to the inverse direction to simulate the rotated diamond
   // points. It's all the same distance-wise.
@@ -304,10 +296,7 @@ const intersectEllipseWithLineSegment = (
   l: LineSegment<GlobalPoint>,
   offset: number = 0,
 ): GlobalPoint[] => {
-  const center = pointFrom<GlobalPoint>(
+  const center = elementCenterPoint(element);
-    element.x + element.width / 2,
-    element.y + element.height / 2,
-  );
 
   const rotatedA = pointRotateRads(l[0], center, -element.angle as Radians);
   const rotatedB = pointRotateRads(l[1], center, -element.angle as Radians);

packages/element/src/cropElement.ts

@@ -14,6 +14,8 @@ import {
 } from "@excalidraw/math";
 import { type Point } from "points-on-curve";
 
+import { elementCenterPoint } from "@excalidraw/common";
+
 import {
   getElementAbsoluteCoords,
   getResizedElementAbsoluteCoords,
@@ -61,7 +63,7 @@ export const cropElement = (
 
   const rotatedPointer = pointRotateRads(
     pointFrom(pointerX, pointerY),
-    pointFrom(element.x + element.width / 2, element.y + element.height / 2),
+    elementCenterPoint(element),
     -element.angle as Radians,
   );
 

packages/element/src/delta.ts

@@ -5,41 +5,7 @@ import {
   isDevEnv,
   isShallowEqual,
   isTestEnv,
-  toBrandedType,
 } from "@excalidraw/common";
-import {
-  BoundElement,
-  BindableElement,
-  bindingProperties,
-  updateBoundElements,
-} from "@excalidraw/element/binding";
-import { LinearElementEditor } from "@excalidraw/element/linearElementEditor";
-import {
-  mutateElement,
-  newElementWith,
-} from "@excalidraw/element/mutateElement";
-import {
-  getBoundTextElementId,
-  redrawTextBoundingBox,
-} from "@excalidraw/element/textElement";
-import {
-  hasBoundTextElement,
-  isBindableElement,
-  isBoundToContainer,
-  isImageElement,
-  isTextElement,
-} from "@excalidraw/element/typeChecks";
-
-import { getNonDeletedGroupIds } from "@excalidraw/element/groups";
-
-import {
-  orderByFractionalIndex,
-  syncMovedIndices,
-} from "@excalidraw/element/fractionalIndex";
-
-import type { BindableProp, BindingProp } from "@excalidraw/element/binding";
-
-import type { ElementUpdate } from "@excalidraw/element/mutateElement";
 
 import type {
   ExcalidrawElement,
@@ -52,16 +18,42 @@ import type {
   SceneElementsMap,
 } from "@excalidraw/element/types";
 
-import type { SubtypeOf, ValueOf } from "@excalidraw/common/utility-types";
+import type { DTO, SubtypeOf, ValueOf } from "@excalidraw/common/utility-types";
-
-import { getObservedAppState } from "./store";
 
 import type {
   AppState,
   ObservedAppState,
   ObservedElementsAppState,
   ObservedStandaloneAppState,
-} from "./types";
+} from "@excalidraw/excalidraw/types";
+
+import { getObservedAppState } from "./store";
+
+import {
+  BoundElement,
+  BindableElement,
+  bindingProperties,
+  updateBoundElements,
+} from "./binding";
+import { LinearElementEditor } from "./linearElementEditor";
+import { mutateElement, newElementWith } from "./mutateElement";
+import { getBoundTextElementId, redrawTextBoundingBox } from "./textElement";
+import {
+  hasBoundTextElement,
+  isBindableElement,
+  isBoundToContainer,
+  isTextElement,
+} from "./typeChecks";
+
+import { getNonDeletedGroupIds } from "./groups";
+
+import { orderByFractionalIndex, syncMovedIndices } from "./fractionalIndex";
+
+import { Scene } from "./Scene";
+
+import type { BindableProp, BindingProp } from "./binding";
+
+import type { ElementUpdate } from "./mutateElement";
 
 /**
  * Represents the difference between two objects of the same type.
@@ -72,7 +64,7 @@ import type {
  *
  * Keeping it as pure object (without transient state, side-effects, etc.), so we won't have to instantiate it on load.
  */
-class Delta<T> {
+export class Delta<T> {
   private constructor(
     public readonly deleted: Partial<T>,
     public readonly inserted: Partial<T>,
@@ -195,10 +187,12 @@ class Delta<T> {
       return;
     }
 
-    if (
+    const isDeletedObject =
-      typeof deleted[property] === "object" ||
+      deleted[property] !== null && typeof deleted[property] === "object";
-      typeof inserted[property] === "object"
+    const isInsertedObject =
-    ) {
+      inserted[property] !== null && typeof inserted[property] === "object";
+
+    if (isDeletedObject || isInsertedObject) {
       type RecordLike = Record<string, V | undefined>;
 
       const deletedObject: RecordLike = deleted[property] ?? {};
@@ -230,6 +224,9 @@ class Delta<T> {
         Reflect.deleteProperty(deleted, property);
         Reflect.deleteProperty(inserted, property);
       }
+    } else if (deleted[property] === inserted[property]) {
+      Reflect.deleteProperty(deleted, property);
+      Reflect.deleteProperty(inserted, property);
     }
   }
 
@@ -324,7 +321,7 @@ class Delta<T> {
   }
 
   /**
-   * Returns all the object1 keys that have distinct values.
+   * Returns sorted object1 keys that have distinct values.
    */
   public static getLeftDifferences<T extends {}>(
     object1: T,
@@ -333,11 +330,11 @@ class Delta<T> {
   ) {
     return Array.from(
       this.distinctKeysIterator("left", object1, object2, skipShallowCompare),
-    );
+    ).sort();
   }
 
   /**
-   * Returns all the object2 keys that have distinct values.
+   * Returns sorted object2 keys that have distinct values.
    */
   public static getRightDifferences<T extends {}>(
     object1: T,
@@ -346,7 +343,7 @@ class Delta<T> {
   ) {
     return Array.from(
       this.distinctKeysIterator("right", object1, object2, skipShallowCompare),
-    );
+    ).sort();
   }
 
   /**
@@ -407,51 +404,57 @@ class Delta<T> {
 }
 
 /**
- * Encapsulates the modifications captured as `Delta`/s.
+ * Encapsulates a set of application-level `Delta`s.
  */
-interface Change<T> {
+export interface DeltaContainer<T> {
   /**
-   * Inverses the `Delta`s inside while creating a new `Change`.
+   * Inverses the `Delta`s while creating a new `DeltaContainer` instance.
    */
-  inverse(): Change<T>;
+  inverse(): DeltaContainer<T>;
 
   /**
-   * Applies the `Change` to the previous object.
+   * Applies the `Delta`s to the previous object.
    *
-   * @returns a tuple of the next object `T` with applied change, and `boolean`, indicating whether the applied change resulted in a visible change.
+   * @returns a tuple of the next object `T` with applied `Delta`s, and `boolean`, indicating whether the applied deltas resulted in a visible change.
    */
   applyTo(previous: T, ...options: unknown[]): [T, boolean];
 
   /**
-   * Checks whether there are actually `Delta`s.
+   * Checks whether all `Delta`s are empty.
    */
   isEmpty(): boolean;
 }
 
-export class AppStateChange implements Change<AppState> {
+export class AppStateDelta implements DeltaContainer<AppState> {
-  private constructor(private readonly delta: Delta<ObservedAppState>) {}
+  private constructor(public readonly delta: Delta<ObservedAppState>) {}
 
   public static calculate<T extends ObservedAppState>(
     prevAppState: T,
     nextAppState: T,
-  ): AppStateChange {
+  ): AppStateDelta {
     const delta = Delta.calculate(
       prevAppState,
       nextAppState,
-      undefined,
+      // making the order of keys in deltas stable for hashing purposes
-      AppStateChange.postProcess,
+      AppStateDelta.orderAppStateKeys,
+      AppStateDelta.postProcess,
     );
 
-    return new AppStateChange(delta);
+    return new AppStateDelta(delta);
+  }
+
+  public static restore(appStateDeltaDTO: DTO<AppStateDelta>): AppStateDelta {
+    const { delta } = appStateDeltaDTO;
+    return new AppStateDelta(delta);
   }
 
   public static empty() {
-    return new AppStateChange(Delta.create({}, {}));
+    return new AppStateDelta(Delta.create({}, {}));
   }
 
-  public inverse(): AppStateChange {
+  public inverse(): AppStateDelta {
     const inversedDelta = Delta.create(this.delta.inserted, this.delta.deleted);
-    return new AppStateChange(inversedDelta);
+    return new AppStateDelta(inversedDelta);
   }
 
   public applyTo(
@@ -490,6 +493,7 @@ export class AppStateChange implements Change<AppState> {
               nextElements.get(
                 selectedLinearElementId,
               ) as NonDeleted<ExcalidrawLinearElement>,
+              nextElements,
             )
           : null;
 
@@ -499,6 +503,7 @@ export class AppStateChange implements Change<AppState> {
               nextElements.get(
                 editingLinearElementId,
               ) as NonDeleted<ExcalidrawLinearElement>,
+              nextElements,
             )
           : null;
 
@@ -540,40 +545,6 @@ export class AppStateChange implements Change<AppState> {
     return Delta.isEmpty(this.delta);
   }
 
-  /**
-   * It is necessary to post process the partials in case of reference values,
-   * for which we need to calculate the real diff between `deleted` and `inserted`.
-   */
-  private static postProcess<T extends ObservedAppState>(
-    deleted: Partial<T>,
-    inserted: Partial<T>,
-  ): [Partial<T>, Partial<T>] {
-    try {
-      Delta.diffObjects(
-        deleted,
-        inserted,
-        "selectedElementIds",
-        // ts language server has a bit trouble resolving this, so we are giving it a little push
-        (_) => true as ValueOf<T["selectedElementIds"]>,
-      );
-      Delta.diffObjects(
-        deleted,
-        inserted,
-        "selectedGroupIds",
-        (prevValue) => (prevValue ?? false) as ValueOf<T["selectedGroupIds"]>,
-      );
-    } catch (e) {
-      // if postprocessing fails it does not make sense to bubble up, but let's make sure we know about it
-      console.error(`Couldn't postprocess appstate change deltas.`);
-
-      if (isTestEnv() || isDevEnv()) {
-        throw e;
-      }
-    } finally {
-      return [deleted, inserted];
-    }
-  }
-
   /**
    * Mutates `nextAppState` be filtering out state related to deleted elements.
    *
@@ -590,13 +561,13 @@ export class AppStateChange implements Change<AppState> {
     const nextObservedAppState = getObservedAppState(nextAppState);
 
     const containsStandaloneDifference = Delta.isRightDifferent(
-      AppStateChange.stripElementsProps(prevObservedAppState),
+      AppStateDelta.stripElementsProps(prevObservedAppState),
-      AppStateChange.stripElementsProps(nextObservedAppState),
+      AppStateDelta.stripElementsProps(nextObservedAppState),
     );
 
     const containsElementsDifference = Delta.isRightDifferent(
-      AppStateChange.stripStandaloneProps(prevObservedAppState),
+      AppStateDelta.stripStandaloneProps(prevObservedAppState),
-      AppStateChange.stripStandaloneProps(nextObservedAppState),
+      AppStateDelta.stripStandaloneProps(nextObservedAppState),
     );
 
     if (!containsStandaloneDifference && !containsElementsDifference) {
@@ -611,8 +582,8 @@ export class AppStateChange implements Change<AppState> {
     if (containsElementsDifference) {
       // filter invisible changes on each iteration
       const changedElementsProps = Delta.getRightDifferences(
-        AppStateChange.stripStandaloneProps(prevObservedAppState),
+        AppStateDelta.stripStandaloneProps(prevObservedAppState),
-        AppStateChange.stripStandaloneProps(nextObservedAppState),
+        AppStateDelta.stripStandaloneProps(nextObservedAppState),
       ) as Array<keyof ObservedElementsAppState>;
 
       let nonDeletedGroupIds = new Set<string>();
@@ -629,7 +600,7 @@ export class AppStateChange implements Change<AppState> {
       for (const key of changedElementsProps) {
         switch (key) {
           case "selectedElementIds":
-            nextAppState[key] = AppStateChange.filterSelectedElements(
+            nextAppState[key] = AppStateDelta.filterSelectedElements(
               nextAppState[key],
               nextElements,
               visibleDifferenceFlag,
@@ -637,7 +608,7 @@ export class AppStateChange implements Change<AppState> {
 
             break;
           case "selectedGroupIds":
-            nextAppState[key] = AppStateChange.filterSelectedGroups(
+            nextAppState[key] = AppStateDelta.filterSelectedGroups(
               nextAppState[key],
               nonDeletedGroupIds,
               visibleDifferenceFlag,
@@ -673,7 +644,7 @@ export class AppStateChange implements Change<AppState> {
             break;
           case "selectedLinearElementId":
           case "editingLinearElementId":
-            const appStateKey = AppStateChange.convertToAppStateKey(key);
+            const appStateKey = AppStateDelta.convertToAppStateKey(key);
             const linearElement = nextAppState[appStateKey];
 
             if (!linearElement) {
@@ -692,6 +663,24 @@ export class AppStateChange implements Change<AppState> {
             }
 
             break;
+          case "lockedMultiSelections": {
+            const prevLockedUnits = prevAppState[key] || {};
+            const nextLockedUnits = nextAppState[key] || {};
+
+            if (!isShallowEqual(prevLockedUnits, nextLockedUnits)) {
+              visibleDifferenceFlag.value = true;
+            }
+            break;
+          }
+          case "activeLockedId": {
+            const prevHitLockedId = prevAppState[key] || null;
+            const nextHitLockedId = nextAppState[key] || null;
+
+            if (prevHitLockedId !== nextHitLockedId) {
+              visibleDifferenceFlag.value = true;
+            }
+            break;
+          }
           default: {
             assertNever(
               key,
@@ -787,6 +776,8 @@ export class AppStateChange implements Change<AppState> {
       editingLinearElementId,
       selectedLinearElementId,
       croppingElementId,
+      lockedMultiSelections,
+      activeLockedId,
       ...standaloneProps
     } = delta as ObservedAppState;
 
@@ -808,6 +799,63 @@ export class AppStateChange implements Change<AppState> {
       ObservedElementsAppState
     >;
   }
+
+  /**
+   * It is necessary to post process the partials in case of reference values,
+   * for which we need to calculate the real diff between `deleted` and `inserted`.
+   */
+  private static postProcess<T extends ObservedAppState>(
+    deleted: Partial<T>,
+    inserted: Partial<T>,
+  ): [Partial<T>, Partial<T>] {
+    try {
+      Delta.diffObjects(
+        deleted,
+        inserted,
+        "selectedElementIds",
+        // ts language server has a bit trouble resolving this, so we are giving it a little push
+        (_) => true as ValueOf<T["selectedElementIds"]>,
+      );
+      Delta.diffObjects(
+        deleted,
+        inserted,
+        "selectedGroupIds",
+        (prevValue) => (prevValue ?? false) as ValueOf<T["selectedGroupIds"]>,
+      );
+      Delta.diffObjects(
+        deleted,
+        inserted,
+        "lockedMultiSelections",
+        (prevValue) => (prevValue ?? {}) as ValueOf<T["lockedMultiSelections"]>,
+      );
+      Delta.diffObjects(
+        deleted,
+        inserted,
+        "activeLockedId",
+        (prevValue) => (prevValue ?? null) as ValueOf<T["activeLockedId"]>,
+      );
+    } catch (e) {
+      // if postprocessing fails it does not make sense to bubble up, but let's make sure we know about it
+      console.error(`Couldn't postprocess appstate change deltas.`);
+
+      if (isTestEnv() || isDevEnv()) {
+        throw e;
+      }
+    } finally {
+      return [deleted, inserted];
+    }
+  }
+
+  private static orderAppStateKeys(partial: Partial<ObservedAppState>) {
+    const orderedPartial: { [key: string]: unknown } = {};
+
+    for (const key of Object.keys(partial).sort()) {
+      // relying on insertion order
+      orderedPartial[key] = partial[key as keyof ObservedAppState];
+    }
+
+    return orderedPartial as Partial<ObservedAppState>;
+  }
 }
 
 type ElementPartial<T extends ExcalidrawElement = ExcalidrawElement> = Omit<
@@ -819,50 +867,63 @@ type ElementPartial<T extends ExcalidrawElement = ExcalidrawElement> = Omit<
  * Elements change is a low level primitive to capture a change between two sets of elements.
  * It does so by encapsulating forward and backward `Delta`s, allowing to time-travel in both directions.
  */
-export class ElementsChange implements Change<SceneElementsMap> {
+export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
   private constructor(
-    private readonly added: Map<string, Delta<ElementPartial>>,
+    public readonly added: Record<string, Delta<ElementPartial>>,
-    private readonly removed: Map<string, Delta<ElementPartial>>,
+    public readonly removed: Record<string, Delta<ElementPartial>>,
-    private readonly updated: Map<string, Delta<ElementPartial>>,
+    public readonly updated: Record<string, Delta<ElementPartial>>,
   ) {}
 
   public static create(
-    added: Map<string, Delta<ElementPartial>>,
+    added: Record<string, Delta<ElementPartial>>,
-    removed: Map<string, Delta<ElementPartial>>,
+    removed: Record<string, Delta<ElementPartial>>,
-    updated: Map<string, Delta<ElementPartial>>,
+    updated: Record<string, Delta<ElementPartial>>,
-    options = { shouldRedistribute: false },
+    options: {
+      shouldRedistribute: boolean;
+    } = {
+      shouldRedistribute: false,
+    },
   ) {
-    let change: ElementsChange;
+    let delta: ElementsDelta;
 
     if (options.shouldRedistribute) {
-      const nextAdded = new Map<string, Delta<ElementPartial>>();
+      const nextAdded: Record<string, Delta<ElementPartial>> = {};
-      const nextRemoved = new Map<string, Delta<ElementPartial>>();
+      const nextRemoved: Record<string, Delta<ElementPartial>> = {};
-      const nextUpdated = new Map<string, Delta<ElementPartial>>();
+      const nextUpdated: Record<string, Delta<ElementPartial>> = {};
 
-      const deltas = [...added, ...removed, ...updated];
+      const deltas = [
+        ...Object.entries(added),
+        ...Object.entries(removed),
+        ...Object.entries(updated),
+      ];
 
       for (const [id, delta] of deltas) {
         if (this.satisfiesAddition(delta)) {
-          nextAdded.set(id, delta);
+          nextAdded[id] = delta;
         } else if (this.satisfiesRemoval(delta)) {
-          nextRemoved.set(id, delta);
+          nextRemoved[id] = delta;
         } else {
-          nextUpdated.set(id, delta);
+          nextUpdated[id] = delta;
         }
       }
 
-      change = new ElementsChange(nextAdded, nextRemoved, nextUpdated);
+      delta = new ElementsDelta(nextAdded, nextRemoved, nextUpdated);
     } else {
-      change = new ElementsChange(added, removed, updated);
+      delta = new ElementsDelta(added, removed, updated);
     }
 
     if (isTestEnv() || isDevEnv()) {
-      ElementsChange.validate(change, "added", this.satisfiesAddition);
+      ElementsDelta.validate(delta, "added", this.satisfiesAddition);
-      ElementsChange.validate(change, "removed", this.satisfiesRemoval);
+      ElementsDelta.validate(delta, "removed", this.satisfiesRemoval);
-      ElementsChange.validate(change, "updated", this.satisfiesUpdate);
+      ElementsDelta.validate(delta, "updated", this.satisfiesUpdate);
     }
 
-    return change;
+    return delta;
+  }
+
+  public static restore(elementsDeltaDTO: DTO<ElementsDelta>): ElementsDelta {
+    const { added, removed, updated } = elementsDeltaDTO;
+    return ElementsDelta.create(added, removed, updated);
   }
 
   private static satisfiesAddition = ({
@@ -884,17 +945,17 @@ export class ElementsChange implements Change<SceneElementsMap> {
   }: Delta<ElementPartial>) => !!deleted.isDeleted === !!inserted.isDeleted;
 
   private static validate(
-    change: ElementsChange,
+    elementsDelta: ElementsDelta,
     type: "added" | "removed" | "updated",
     satifies: (delta: Delta<ElementPartial>) => boolean,
   ) {
-    for (const [id, delta] of change[type].entries()) {
+    for (const [id, delta] of Object.entries(elementsDelta[type])) {
       if (!satifies(delta)) {
         console.error(
           `Broken invariant for "${type}" delta, element "${id}", delta:`,
           delta,
         );
-        throw new Error(`ElementsChange invariant broken for element "${id}".`);
+        throw new Error(`ElementsDelta invariant broken for element "${id}".`);
       }
     }
   }
@@ -905,19 +966,19 @@ export class ElementsChange implements Change<SceneElementsMap> {
    * @param prevElements - Map representing the previous state of elements.
    * @param nextElements - Map representing the next state of elements.
    *
-   * @returns `ElementsChange` instance representing the `Delta` changes between the two sets of elements.
+   * @returns `ElementsDelta` instance representing the `Delta` changes between the two sets of elements.
    */
   public static calculate<T extends OrderedExcalidrawElement>(
     prevElements: Map<string, T>,
     nextElements: Map<string, T>,
-  ): ElementsChange {
+  ): ElementsDelta {
     if (prevElements === nextElements) {
-      return ElementsChange.empty();
+      return ElementsDelta.empty();
     }
 
-    const added = new Map<string, Delta<ElementPartial>>();
+    const added: Record<string, Delta<ElementPartial>> = {};
-    const removed = new Map<string, Delta<ElementPartial>>();
+    const removed: Record<string, Delta<ElementPartial>> = {};
-    const updated = new Map<string, Delta<ElementPartial>>();
+    const updated: Record<string, Delta<ElementPartial>> = {};
 
     // this might be needed only in same edge cases, like during collab, when `isDeleted` elements get removed or when we (un)intentionally remove the elements
     for (const prevElement of prevElements.values()) {
@@ -930,10 +991,10 @@ export class ElementsChange implements Change<SceneElementsMap> {
         const delta = Delta.create(
           deleted,
           inserted,
-          ElementsChange.stripIrrelevantProps,
+          ElementsDelta.stripIrrelevantProps,
         );
 
-        removed.set(prevElement.id, delta);
+        removed[prevElement.id] = delta;
       }
     }
 
@@ -950,10 +1011,10 @@ export class ElementsChange implements Change<SceneElementsMap> {
         const delta = Delta.create(
           deleted,
           inserted,
-          ElementsChange.stripIrrelevantProps,
+          ElementsDelta.stripIrrelevantProps,
         );
 
-        added.set(nextElement.id, delta);
+        added[nextElement.id] = delta;
 
         continue;
       }
@@ -962,8 +1023,8 @@ export class ElementsChange implements Change<SceneElementsMap> {
         const delta = Delta.calculate<ElementPartial>(
           prevElement,
           nextElement,
-          ElementsChange.stripIrrelevantProps,
+          ElementsDelta.stripIrrelevantProps,
-          ElementsChange.postProcess,
+          ElementsDelta.postProcess,
         );
 
         if (
@@ -974,9 +1035,9 @@ export class ElementsChange implements Change<SceneElementsMap> {
         ) {
           // notice that other props could have been updated as well
           if (prevElement.isDeleted && !nextElement.isDeleted) {
-            added.set(nextElement.id, delta);
+            added[nextElement.id] = delta;
           } else {
-            removed.set(nextElement.id, delta);
+            removed[nextElement.id] = delta;
           }
 
           continue;
@@ -984,24 +1045,24 @@ export class ElementsChange implements Change<SceneElementsMap> {
 
         // making sure there are at least some changes
         if (!Delta.isEmpty(delta)) {
-          updated.set(nextElement.id, delta);
+          updated[nextElement.id] = delta;
         }
       }
     }
 
-    return ElementsChange.create(added, removed, updated);
+    return ElementsDelta.create(added, removed, updated);
   }
 
   public static empty() {
-    return ElementsChange.create(new Map(), new Map(), new Map());
+    return ElementsDelta.create({}, {}, {});
   }
 
-  public inverse(): ElementsChange {
+  public inverse(): ElementsDelta {
-    const inverseInternal = (deltas: Map<string, Delta<ElementPartial>>) => {
+    const inverseInternal = (deltas: Record<string, Delta<ElementPartial>>) => {
-      const inversedDeltas = new Map<string, Delta<ElementPartial>>();
+      const inversedDeltas: Record<string, Delta<ElementPartial>> = {};
 
-      for (const [id, delta] of deltas.entries()) {
+      for (const [id, delta] of Object.entries(deltas)) {
-        inversedDeltas.set(id, Delta.create(delta.inserted, delta.deleted));
+        inversedDeltas[id] = Delta.create(delta.inserted, delta.deleted);
       }
 
       return inversedDeltas;
@@ -1012,14 +1073,14 @@ export class ElementsChange implements Change<SceneElementsMap> {
     const updated = inverseInternal(this.updated);
 
     // notice we inverse removed with added not to break the invariants
-    return ElementsChange.create(removed, added, updated);
+    return ElementsDelta.create(removed, added, updated);
   }
 
   public isEmpty(): boolean {
     return (
-      this.added.size === 0 &&
+      Object.keys(this.added).length === 0 &&
-      this.removed.size === 0 &&
+      Object.keys(this.removed).length === 0 &&
-      this.updated.size === 0
+      Object.keys(this.updated).length === 0
     );
   }
 
@@ -1030,7 +1091,10 @@ export class ElementsChange implements Change<SceneElementsMap> {
    * @param modifierOptions defines which of the delta (`deleted` or `inserted`) will be updated
    * @returns new instance with modified delta/s
    */
-  public applyLatestChanges(elements: SceneElementsMap): ElementsChange {
+  public applyLatestChanges(
+    elements: SceneElementsMap,
+    modifierOptions: "deleted" | "inserted",
+  ): ElementsDelta {
     const modifier =
       (element: OrderedExcalidrawElement) => (partial: ElementPartial) => {
         const latestPartial: { [key: string]: unknown } = {};
@@ -1051,11 +1115,11 @@ export class ElementsChange implements Change<SceneElementsMap> {
       };
 
     const applyLatestChangesInternal = (
-      deltas: Map<string, Delta<ElementPartial>>,
+      deltas: Record<string, Delta<ElementPartial>>,
     ) => {
-      const modifiedDeltas = new Map<string, Delta<ElementPartial>>();
+      const modifiedDeltas: Record<string, Delta<ElementPartial>> = {};
 
-      for (const [id, delta] of deltas.entries()) {
+      for (const [id, delta] of Object.entries(deltas)) {
         const existingElement = elements.get(id);
 
         if (existingElement) {
@@ -1063,12 +1127,12 @@ export class ElementsChange implements Change<SceneElementsMap> {
             delta.deleted,
             delta.inserted,
             modifier(existingElement),
-            "inserted",
+            modifierOptions,
           );
 
-          modifiedDeltas.set(id, modifiedDelta);
+          modifiedDeltas[id] = modifiedDelta;
         } else {
-          modifiedDeltas.set(id, delta);
+          modifiedDeltas[id] = delta;
         }
       }
 
@@ -1079,16 +1143,16 @@ export class ElementsChange implements Change<SceneElementsMap> {
     const removed = applyLatestChangesInternal(this.removed);
     const updated = applyLatestChangesInternal(this.updated);
 
-    return ElementsChange.create(added, removed, updated, {
+    return ElementsDelta.create(added, removed, updated, {
       shouldRedistribute: true, // redistribute the deltas as `isDeleted` could have been updated
     });
   }
 
   public applyTo(
     elements: SceneElementsMap,
-    snapshot: Map<string, OrderedExcalidrawElement>,
+    elementsSnapshot: Map<string, OrderedExcalidrawElement>,
   ): [SceneElementsMap, boolean] {
-    let nextElements = toBrandedType<SceneElementsMap>(new Map(elements));
+    let nextElements = new Map(elements) as SceneElementsMap;
     let changedElements: Map<string, OrderedExcalidrawElement>;
 
     const flags = {
@@ -1098,15 +1162,15 @@ export class ElementsChange implements Change<SceneElementsMap> {
 
     // mimic a transaction by applying deltas into `nextElements` (always new instance, no mutation)
     try {
-      const applyDeltas = ElementsChange.createApplier(
+      const applyDeltas = ElementsDelta.createApplier(
         nextElements,
-        snapshot,
+        elementsSnapshot,
         flags,
       );
 
-      const addedElements = applyDeltas(this.added);
+      const addedElements = applyDeltas("added", this.added);
-      const removedElements = applyDeltas(this.removed);
+      const removedElements = applyDeltas("removed", this.removed);
-      const updatedElements = applyDeltas(this.updated);
+      const updatedElements = applyDeltas("updated", this.updated);
 
       const affectedElements = this.resolveConflicts(elements, nextElements);
 
@@ -1118,7 +1182,7 @@ export class ElementsChange implements Change<SceneElementsMap> {
         ...affectedElements,
       ]);
     } catch (e) {
-      console.error(`Couldn't apply elements change`, e);
+      console.error(`Couldn't apply elements delta`, e);
 
       if (isTestEnv() || isDevEnv()) {
         throw e;
@@ -1132,19 +1196,22 @@ export class ElementsChange implements Change<SceneElementsMap> {
     }
 
     try {
-      // TODO: #7348 refactor away mutations below, so that we couldn't end up in an incosistent state
-      ElementsChange.redrawTextBoundingBoxes(nextElements, changedElements);
-
       // the following reorder performs also mutations, but only on new instances of changed elements
       // (unless something goes really bad and it fallbacks to fixing all invalid indices)
-      nextElements = ElementsChange.reorderElements(
+      nextElements = ElementsDelta.reorderElements(
         nextElements,
         changedElements,
         flags,
       );
 
+      // we don't have an up-to-date scene, as we can be just in the middle of applying history entry
+      // we also don't have a scene on the server
+      // so we are creating a temp scene just to query and mutate elements
+      const tempScene = new Scene(nextElements);
+
+      ElementsDelta.redrawTextBoundingBoxes(tempScene, changedElements);
       // Need ordered nextElements to avoid z-index binding issues
-      ElementsChange.redrawBoundArrows(nextElements, changedElements);
+      ElementsDelta.redrawBoundArrows(tempScene, changedElements);
     } catch (e) {
       console.error(
         `Couldn't mutate elements after applying elements change`,
@@ -1159,36 +1226,42 @@ export class ElementsChange implements Change<SceneElementsMap> {
     }
   }
 
-  private static createApplier = (
+  private static createApplier =
-    nextElements: SceneElementsMap,
+    (
-    snapshot: Map<string, OrderedExcalidrawElement>,
+      nextElements: SceneElementsMap,
-    flags: {
+      snapshot: Map<string, OrderedExcalidrawElement>,
-      containsVisibleDifference: boolean;
+      flags: {
-      containsZindexDifference: boolean;
+        containsVisibleDifference: boolean;
-    },
+        containsZindexDifference: boolean;
-  ) => {
+      },
-    const getElement = ElementsChange.createGetter(
+    ) =>
-      nextElements,
+    (
-      snapshot,
+      type: "added" | "removed" | "updated",
-      flags,
+      deltas: Record<string, Delta<ElementPartial>>,
-    );
+    ) => {
+      const getElement = ElementsDelta.createGetter(
+        type,
+        nextElements,
+        snapshot,
+        flags,
+      );
 
-    return (deltas: Map<string, Delta<ElementPartial>>) =>
+      return Object.entries(deltas).reduce((acc, [id, delta]) => {
-      Array.from(deltas.entries()).reduce((acc, [id, delta]) => {
         const element = getElement(id, delta.inserted);
 
         if (element) {
-          const newElement = ElementsChange.applyDelta(element, delta, flags);
+          const newElement = ElementsDelta.applyDelta(element, delta, flags);
           nextElements.set(newElement.id, newElement);
           acc.set(newElement.id, newElement);
         }
 
         return acc;
       }, new Map<string, OrderedExcalidrawElement>());
-  };
+    };
 
   private static createGetter =
     (
+      type: "added" | "removed" | "updated",
       elements: SceneElementsMap,
       snapshot: Map<string, OrderedExcalidrawElement>,
       flags: {
@@ -1214,6 +1287,14 @@ export class ElementsChange implements Change<SceneElementsMap> {
           ) {
             flags.containsVisibleDifference = true;
           }
+        } else {
+          // not in elements, not in snapshot? element might have been added remotely!
+          element = newElementWith(
+            { id, version: 1 } as OrderedExcalidrawElement,
+            {
+              ...partial,
+            },
+          );
         }
       }
 
@@ -1250,7 +1331,8 @@ export class ElementsChange implements Change<SceneElementsMap> {
       });
     }
 
-    if (isImageElement(element)) {
+    // TODO: this looks wrong, shouldn't be here
+    if (element.type === "image") {
       const _delta = delta as Delta<ElementPartial<ExcalidrawImageElement>>;
       // we want to override `crop` only if modified so that we don't reset
       // when undoing/redoing unrelated change
@@ -1263,10 +1345,12 @@ export class ElementsChange implements Change<SceneElementsMap> {
     }
 
     if (!flags.containsVisibleDifference) {
-      // strip away fractional as even if it would be different, it doesn't have to result in visible change
+      // strip away fractional index, as even if it would be different, it doesn't have to result in visible change
       const { index, ...rest } = directlyApplicablePartial;
-      const containsVisibleDifference =
+      const containsVisibleDifference = ElementsDelta.checkForVisibleDifference(
-        ElementsChange.checkForVisibleDifference(element, rest);
+        element,
+        rest,
+      );
 
       flags.containsVisibleDifference = containsVisibleDifference;
     }
@@ -1309,6 +1393,8 @@ export class ElementsChange implements Change<SceneElementsMap> {
    * Resolves conflicts for all previously added, removed and updated elements.
    * Updates the previous deltas with all the changes after conflict resolution.
    *
+   * // TODO: revisit since some bound arrows seem to be often redrawn incorrectly
+   *
    * @returns all elements affected by the conflict resolution
    */
   private resolveConflicts(
@@ -1337,6 +1423,7 @@ export class ElementsChange implements Change<SceneElementsMap> {
       } else {
         affectedElement = mutateElement(
           nextElement,
+          nextElements,
           updates as ElementUpdate<OrderedExcalidrawElement>,
         );
       }
@@ -1346,20 +1433,21 @@ export class ElementsChange implements Change<SceneElementsMap> {
     };
 
     // removed delta is affecting the bindings always, as all the affected elements of the removed elements need to be unbound
-    for (const [id] of this.removed) {
+    for (const id of Object.keys(this.removed)) {
-      ElementsChange.unbindAffected(prevElements, nextElements, id, updater);
+      ElementsDelta.unbindAffected(prevElements, nextElements, id, updater);
     }
 
     // added delta is affecting the bindings always, all the affected elements of the added elements need to be rebound
-    for (const [id] of this.added) {
+    for (const id of Object.keys(this.added)) {
-      ElementsChange.rebindAffected(prevElements, nextElements, id, updater);
+      ElementsDelta.rebindAffected(prevElements, nextElements, id, updater);
     }
 
     // updated delta is affecting the binding only in case it contains changed binding or bindable property
-    for (const [id] of Array.from(this.updated).filter(([_, delta]) =>
+    for (const [id] of Array.from(Object.entries(this.updated)).filter(
-      Object.keys({ ...delta.deleted, ...delta.inserted }).find((prop) =>
+      ([_, delta]) =>
-        bindingProperties.has(prop as BindingProp | BindableProp),
+        Object.keys({ ...delta.deleted, ...delta.inserted }).find((prop) =>
-      ),
+          bindingProperties.has(prop as BindingProp | BindableProp),
+        ),
     )) {
       const updatedElement = nextElements.get(id);
       if (!updatedElement || updatedElement.isDeleted) {
@@ -1367,7 +1455,7 @@ export class ElementsChange implements Change<SceneElementsMap> {
         continue;
       }
 
-      ElementsChange.rebindAffected(prevElements, nextElements, id, updater);
+      ElementsDelta.rebindAffected(prevElements, nextElements, id, updater);
     }
 
     // filter only previous elements, which were now affected
@@ -1377,21 +1465,21 @@ export class ElementsChange implements Change<SceneElementsMap> {
 
     // calculate complete deltas for affected elements, and assign them back to all the deltas
     // technically we could do better here if perf. would become an issue
-    const { added, removed, updated } = ElementsChange.calculate(
+    const { added, removed, updated } = ElementsDelta.calculate(
       prevAffectedElements,
       nextAffectedElements,
     );
 
-    for (const [id, delta] of added) {
+    for (const [id, delta] of Object.entries(added)) {
-      this.added.set(id, delta);
+      this.added[id] = delta;
     }
 
-    for (const [id, delta] of removed) {
+    for (const [id, delta] of Object.entries(removed)) {
-      this.removed.set(id, delta);
+      this.removed[id] = delta;
     }
 
-    for (const [id, delta] of updated) {
+    for (const [id, delta] of Object.entries(updated)) {
-      this.updated.set(id, delta);
+      this.updated[id] = delta;
     }
 
     return nextAffectedElements;
@@ -1456,9 +1544,10 @@ export class ElementsChange implements Change<SceneElementsMap> {
   }
 
   private static redrawTextBoundingBoxes(
-    elements: SceneElementsMap,
+    scene: Scene,
     changed: Map<string, OrderedExcalidrawElement>,
   ) {
+    const elements = scene.getNonDeletedElementsMap();
     const boxesToRedraw = new Map<
       string,
       { container: OrderedExcalidrawElement; boundText: ExcalidrawTextElement }
@@ -1498,17 +1587,19 @@ export class ElementsChange implements Change<SceneElementsMap> {
         continue;
       }
 
-      redrawTextBoundingBox(boundText, container, elements, false);
+      redrawTextBoundingBox(boundText, container, scene);
     }
   }
 
   private static redrawBoundArrows(
-    elements: SceneElementsMap,
+    scene: Scene,
     changed: Map<string, OrderedExcalidrawElement>,
   ) {
     for (const element of changed.values()) {
       if (!element.isDeleted && isBindableElement(element)) {
-        updateBoundElements(element, elements);
+        updateBoundElements(element, scene, {
+          changedElements: changed,
+        });
       }
     }
   }
@@ -1561,7 +1652,7 @@ export class ElementsChange implements Change<SceneElementsMap> {
       Delta.diffArrays(deleted, inserted, "boundElements", (x) => x.id);
     } catch (e) {
       // if postprocessing fails, it does not make sense to bubble up, but let's make sure we know about it
-      console.error(`Couldn't postprocess elements change deltas.`);
+      console.error(`Couldn't postprocess elements delta.`);
 
       if (isTestEnv() || isDevEnv()) {
         throw e;
@@ -1574,8 +1665,7 @@ export class ElementsChange implements Change<SceneElementsMap> {
   private static stripIrrelevantProps(
     partial: Partial<OrderedExcalidrawElement>,
   ): ElementPartial {
-    const { id, updated, version, versionNonce, seed, ...strippedPartial } =
+    const { id, updated, version, versionNonce, ...strippedPartial } = partial;
-      partial;
 
     return strippedPartial;
   }

packages/element/src/distance.ts

@@ -1,12 +1,13 @@
 import {
   curvePointDistance,
   distanceToLineSegment,
-  pointFrom,
   pointRotateRads,
 } from "@excalidraw/math";
 
 import { ellipse, ellipseDistanceFromPoint } from "@excalidraw/math/ellipse";
 
+import { elementCenterPoint } from "@excalidraw/common";
+
 import type { GlobalPoint, Radians } from "@excalidraw/math";
 
 import {
@@ -53,10 +54,7 @@ const distanceToRectanguloidElement = (
   element: ExcalidrawRectanguloidElement,
   p: GlobalPoint,
 ) => {
-  const center = pointFrom<GlobalPoint>(
+  const center = elementCenterPoint(element);
-    element.x + element.width / 2,
-    element.y + element.height / 2,
-  );
   // To emulate a rotated rectangle we rotate the point in the inverse angle
   // instead. It's all the same distance-wise.
   const rotatedPoint = pointRotateRads(p, center, -element.angle as Radians);
@@ -84,10 +82,7 @@ const distanceToDiamondElement = (
   element: ExcalidrawDiamondElement,
   p: GlobalPoint,
 ): number => {
-  const center = pointFrom<GlobalPoint>(
+  const center = elementCenterPoint(element);
-    element.x + element.width / 2,
-    element.y + element.height / 2,
-  );
 
   // Rotate the point to the inverse direction to simulate the rotated diamond
   // points. It's all the same distance-wise.
@@ -115,10 +110,7 @@ const distanceToEllipseElement = (
   element: ExcalidrawEllipseElement,
   p: GlobalPoint,
 ): number => {
-  const center = pointFrom(
+  const center = elementCenterPoint(element);
-    element.x + element.width / 2,
-    element.y + element.height / 2,
-  );
   return ellipseDistanceFromPoint(
     // Instead of rotating the ellipse, rotate the point to the inverse angle
     pointRotateRads(p, center, -element.angle as Radians),

packages/element/src/dragElements.ts

@@ -11,13 +11,10 @@ import type {
   PointerDownState,
 } from "@excalidraw/excalidraw/types";
 
-import type Scene from "@excalidraw/excalidraw/scene/Scene";
-
 import type { NonDeletedExcalidrawElement } from "@excalidraw/element/types";
 
 import { updateBoundElements } from "./binding";
 import { getCommonBounds } from "./bounds";
-import { mutateElement } from "./mutateElement";
 import { getPerfectElementSize } from "./sizeHelpers";
 import { getBoundTextElement } from "./textElement";
 import { getMinTextElementWidth } from "./textMeasurements";
@@ -29,6 +26,8 @@ import {
   isTextElement,
 } from "./typeChecks";
 
+import type { Scene } from "./Scene";
+
 import type { Bounds } from "./bounds";
 import type { ExcalidrawElement } from "./types";
 
@@ -104,7 +103,7 @@ export const dragSelectedElements = (
   );
 
   elementsToUpdate.forEach((element) => {
-    updateElementCoords(pointerDownState, element, adjustedOffset);
+    updateElementCoords(pointerDownState, element, scene, adjustedOffset);
     if (!isArrowElement(element)) {
       // skip arrow labels since we calculate its position during render
       const textElement = getBoundTextElement(
@@ -112,9 +111,14 @@ export const dragSelectedElements = (
         scene.getNonDeletedElementsMap(),
       );
       if (textElement) {
-        updateElementCoords(pointerDownState, textElement, adjustedOffset);
+        updateElementCoords(
+          pointerDownState,
+          textElement,
+          scene,
+          adjustedOffset,
+        );
       }
-      updateBoundElements(element, scene.getElementsMapIncludingDeleted(), {
+      updateBoundElements(element, scene, {
         simultaneouslyUpdated: Array.from(elementsToUpdate),
       });
     }
@@ -155,6 +159,7 @@ const calculateOffset = (
 const updateElementCoords = (
   pointerDownState: PointerDownState,
   element: NonDeletedExcalidrawElement,
+  scene: Scene,
   dragOffset: { x: number; y: number },
 ) => {
   const originalElement =
@@ -163,7 +168,7 @@ const updateElementCoords = (
   const nextX = originalElement.x + dragOffset.x;
   const nextY = originalElement.y + dragOffset.y;
 
-  mutateElement(element, {
+  scene.mutateElement(element, {
     x: nextX,
     y: nextY,
   });
@@ -190,6 +195,7 @@ export const dragNewElement = ({
   shouldMaintainAspectRatio,
   shouldResizeFromCenter,
   zoom,
+  scene,
   widthAspectRatio = null,
   originOffset = null,
   informMutation = true,
@@ -205,6 +211,7 @@ export const dragNewElement = ({
   shouldMaintainAspectRatio: boolean;
   shouldResizeFromCenter: boolean;
   zoom: NormalizedZoomValue;
+  scene: Scene;
   /** whether to keep given aspect ratio when `isResizeWithSidesSameLength` is
       true */
   widthAspectRatio?: number | null;
@@ -285,7 +292,7 @@ export const dragNewElement = ({
       };
     }
 
-    mutateElement(
+    scene.mutateElement(
       newElement,
       {
         x: newX + (originOffset?.x ?? 0),
@@ -295,7 +302,7 @@ export const dragNewElement = ({
         ...textAutoResize,
         ...imageInitialDimension,
       },
-      informMutation,
+      { informMutation, isDragging: false },
     );
   }
 };

packages/element/src/duplicate.ts

@@ -36,10 +36,7 @@ import {
 
 import { getBoundTextElement, getContainerElement } from "./textElement";
 
-import {
+import { fixDuplicatedBindingsAfterDuplication } from "./binding";
-  fixDuplicatedBindingsAfterDuplication,
-  fixReversedBindings,
-} from "./binding";
 
 import type {
   ElementsMap,
@@ -60,16 +57,14 @@ import type {
  *                               multiple elements at once, share this map
  *                               amongst all of them
  * @param element Element to duplicate
- * @param overrides Any element properties to override
  */
 export const duplicateElement = <TElement extends ExcalidrawElement>(
   editingGroupId: AppState["editingGroupId"],
   groupIdMapForOperation: Map<GroupId, GroupId>,
   element: TElement,
-  overrides?: Partial<TElement>,
   randomizeSeed?: boolean,
 ): Readonly<TElement> => {
-  let copy = deepCopyElement(element);
+  const copy = deepCopyElement(element);
 
   if (isTestEnv()) {
     __test__defineOrigId(copy, element.id);
@@ -92,9 +87,6 @@ export const duplicateElement = <TElement extends ExcalidrawElement>(
       return groupIdMapForOperation.get(groupId)!;
     },
   );
-  if (overrides) {
-    copy = Object.assign(copy, overrides);
-  }
   return copy;
 };
 
@@ -102,9 +94,14 @@ export const duplicateElements = (
   opts: {
     elements: readonly ExcalidrawElement[];
     randomizeSeed?: boolean;
-    overrides?: (
+    overrides?: (data: {
-      originalElement: ExcalidrawElement,
+      duplicateElement: ExcalidrawElement;
-    ) => Partial<ExcalidrawElement>;
+      origElement: ExcalidrawElement;
+      origIdToDuplicateId: Map<
+        ExcalidrawElement["id"],
+        ExcalidrawElement["id"]
+      >;
+    }) => Partial<ExcalidrawElement>;
   } & (
     | {
         /**
@@ -132,14 +129,6 @@ export const duplicateElements = (
           editingGroupId: AppState["editingGroupId"];
           selectedGroupIds: AppState["selectedGroupIds"];
         };
-        /**
-         * If true, duplicated elements are inserted _before_ specified
-         * elements. Case: alt-dragging elements to duplicate them.
-         *
-         * TODO: remove this once (if) we stop replacing the original element
-         * with the duplicated one in the scene array.
-         */
-        reverseOrder: boolean;
       }
   ),
 ) => {
@@ -153,8 +142,6 @@ export const duplicateElements = (
           selectedGroupIds: {},
         } as const);
 
-  const reverseOrder = opts.type === "in-place" ? opts.reverseOrder : false;
-
   // Ids of elements that have already been processed so we don't push them
   // into the array twice if we end up backtracking when retrieving
   // discontiguous group of elements (can happen due to a bug, or in edge
@@ -167,10 +154,17 @@ export const duplicateElements = (
   // loop over them.
   const processedIds = new Map<ExcalidrawElement["id"], true>();
   const groupIdMap = new Map();
-  const newElements: ExcalidrawElement[] = [];
+  const duplicatedElements: ExcalidrawElement[] = [];
-  const oldElements: ExcalidrawElement[] = [];
+  const origElements: ExcalidrawElement[] = [];
-  const oldIdToDuplicatedId = new Map();
+  const origIdToDuplicateId = new Map<
-  const duplicatedElementsMap = new Map<string, ExcalidrawElement>();
+    ExcalidrawElement["id"],
+    ExcalidrawElement["id"]
+  >();
+  const duplicateIdToOrigElement = new Map<
+    ExcalidrawElement["id"],
+    ExcalidrawElement
+  >();
+  const duplicateElementsMap = new Map<string, ExcalidrawElement>();
   const elementsMap = arrayToMap(elements) as ElementsMap;
   const _idsOfElementsToDuplicate =
     opts.type === "in-place"
@@ -188,7 +182,7 @@ export const duplicateElements = (
 
   elements = normalizeElementOrder(elements);
 
-  const elementsWithClones: ExcalidrawElement[] = elements.slice();
+  const elementsWithDuplicates: ExcalidrawElement[] = elements.slice();
 
   // helper functions
   // -------------------------------------------------------------------------
@@ -214,17 +208,17 @@ export const duplicateElements = (
           appState.editingGroupId,
           groupIdMap,
           element,
-          opts.overrides?.(element),
           opts.randomizeSeed,
         );
 
         processedIds.set(newElement.id, true);
 
-        duplicatedElementsMap.set(newElement.id, newElement);
+        duplicateElementsMap.set(newElement.id, newElement);
-        oldIdToDuplicatedId.set(element.id, newElement.id);
+        origIdToDuplicateId.set(element.id, newElement.id);
+        duplicateIdToOrigElement.set(newElement.id, element);
 
-        oldElements.push(element);
+        origElements.push(element);
-        newElements.push(newElement);
+        duplicatedElements.push(newElement);
 
         acc.push(newElement);
         return acc;
@@ -248,21 +242,12 @@ export const duplicateElements = (
       return;
     }
 
-    if (reverseOrder && index < 1) {
+    if (index > elementsWithDuplicates.length - 1) {
-      elementsWithClones.unshift(...castArray(elements));
+      elementsWithDuplicates.push(...castArray(elements));
       return;
     }
 
-    if (!reverseOrder && index > elementsWithClones.length - 1) {
+    elementsWithDuplicates.splice(index + 1, 0, ...castArray(elements));
-      elementsWithClones.push(...castArray(elements));
-      return;
-    }
-
-    elementsWithClones.splice(
-      index + (reverseOrder ? 0 : 1),
-      0,
-      ...castArray(elements),
-    );
   };
 
   const frameIdsToDuplicate = new Set(
@@ -294,13 +279,9 @@ export const duplicateElements = (
             : [element],
       );
 
-      const targetIndex = reverseOrder
+      const targetIndex = findLastIndex(elementsWithDuplicates, (el) => {
-        ? elementsWithClones.findIndex((el) => {
+        return el.groupIds?.includes(groupId);
-            return el.groupIds?.includes(groupId);
+      });
-          })
-        : findLastIndex(elementsWithClones, (el) => {
-            return el.groupIds?.includes(groupId);
-          });
 
       insertBeforeOrAfterIndex(targetIndex, copyElements(groupElements));
       continue;
@@ -318,7 +299,7 @@ export const duplicateElements = (
 
       const frameChildren = getFrameChildren(elements, frameId);
 
-      const targetIndex = findLastIndex(elementsWithClones, (el) => {
+      const targetIndex = findLastIndex(elementsWithDuplicates, (el) => {
         return el.frameId === frameId || el.id === frameId;
       });
 
@@ -335,7 +316,7 @@ export const duplicateElements = (
     if (hasBoundTextElement(element)) {
       const boundTextElement = getBoundTextElement(element, elementsMap);
 
-      const targetIndex = findLastIndex(elementsWithClones, (el) => {
+      const targetIndex = findLastIndex(elementsWithDuplicates, (el) => {
         return (
           el.id === element.id ||
           ("containerId" in el && el.containerId === element.id)
@@ -344,7 +325,7 @@ export const duplicateElements = (
 
       if (boundTextElement) {
         insertBeforeOrAfterIndex(
-          targetIndex + (reverseOrder ? -1 : 0),
+          targetIndex,
           copyElements([element, boundTextElement]),
         );
       } else {
@@ -357,7 +338,7 @@ export const duplicateElements = (
     if (isBoundToContainer(element)) {
       const container = getContainerElement(element, elementsMap);
 
-      const targetIndex = findLastIndex(elementsWithClones, (el) => {
+      const targetIndex = findLastIndex(elementsWithDuplicates, (el) => {
         return el.id === element.id || el.id === container?.id;
       });
 
@@ -377,7 +358,7 @@ export const duplicateElements = (
     // -------------------------------------------------------------------------
 
     insertBeforeOrAfterIndex(
-      findLastIndex(elementsWithClones, (el) => el.id === element.id),
+      findLastIndex(elementsWithDuplicates, (el) => el.id === element.id),
       copyElements(element),
     );
   }
@@ -385,28 +366,38 @@ export const duplicateElements = (
   // ---------------------------------------------------------------------------
 
   fixDuplicatedBindingsAfterDuplication(
-    newElements,
+    duplicatedElements,
-    oldIdToDuplicatedId,
+    origIdToDuplicateId,
-    duplicatedElementsMap as NonDeletedSceneElementsMap,
+    duplicateElementsMap as NonDeletedSceneElementsMap,
   );
 
-  if (reverseOrder) {
-    fixReversedBindings(
-      _idsOfElementsToDuplicate,
-      elementsWithClones,
-      oldIdToDuplicatedId,
-    );
-  }
-
   bindElementsToFramesAfterDuplication(
-    elementsWithClones,
+    elementsWithDuplicates,
-    oldElements,
+    origElements,
-    oldIdToDuplicatedId,
+    origIdToDuplicateId,
   );
 
+  if (opts.overrides) {
+    for (const duplicateElement of duplicatedElements) {
+      const origElement = duplicateIdToOrigElement.get(duplicateElement.id);
+      if (origElement) {
+        Object.assign(
+          duplicateElement,
+          opts.overrides({
+            duplicateElement,
+            origElement,
+            origIdToDuplicateId,
+          }),
+        );
+      }
+    }
+  }
+
   return {
-    newElements,
+    duplicatedElements,
-    elementsWithClones,
+    duplicateElementsMap,
+    elementsWithDuplicates,
+    origIdToDuplicateId,
   };
 };
 

packages/element/src/elbowArrow.ts

@@ -20,7 +20,6 @@ import {
   tupleToCoors,
   getSizeFromPoints,
   isDevEnv,
-  isTestEnv,
 } from "@excalidraw/common";
 
 import type { AppState } from "@excalidraw/excalidraw/types";
@@ -63,6 +62,7 @@ import type {
   ExcalidrawBindableElement,
   FixedPointBinding,
   FixedSegment,
+  NonDeletedExcalidrawElement,
 } from "./types";
 
 type GridAddress = [number, number] & { _brand: "gridaddress" };
@@ -876,6 +876,8 @@ const handleEndpointDrag = (
   );
 };
 
+const MAX_POS = 1e6;
+
 /**
  *
  */
@@ -884,7 +886,7 @@ export const updateElbowArrowPoints = (
   elementsMap: NonDeletedSceneElementsMap,
   updates: {
     points?: readonly LocalPoint[];
-    fixedSegments?: FixedSegment[] | null;
+    fixedSegments?: readonly FixedSegment[] | null;
     startBinding?: FixedPointBinding | null;
     endBinding?: FixedPointBinding | null;
   },
@@ -896,7 +898,51 @@ export const updateElbowArrowPoints = (
     return { points: updates.points ?? arrow.points };
   }
 
-  if (isDevEnv() || isTestEnv()) {
+  // NOTE (mtolmacs): This is a temporary check to ensure that the incoming elbow
+  // arrow size is valid. This check will be removed once the issue is identified
+  if (
+    arrow.x < -MAX_POS ||
+    arrow.x > MAX_POS ||
+    arrow.y < -MAX_POS ||
+    arrow.y > MAX_POS ||
+    arrow.x + (updates?.points?.[updates?.points?.length - 1]?.[0] ?? 0) <
+      -MAX_POS ||
+    arrow.x + (updates?.points?.[updates?.points?.length - 1]?.[0] ?? 0) >
+      MAX_POS ||
+    arrow.y + (updates?.points?.[updates?.points?.length - 1]?.[1] ?? 0) <
+      -MAX_POS ||
+    arrow.y + (updates?.points?.[updates?.points?.length - 1]?.[1] ?? 0) >
+      MAX_POS ||
+    arrow.x + (arrow?.points?.[arrow?.points?.length - 1]?.[0] ?? 0) <
+      -MAX_POS ||
+    arrow.x + (arrow?.points?.[arrow?.points?.length - 1]?.[0] ?? 0) >
+      MAX_POS ||
+    arrow.y + (arrow?.points?.[arrow?.points?.length - 1]?.[1] ?? 0) <
+      -MAX_POS ||
+    arrow.y + (arrow?.points?.[arrow?.points?.length - 1]?.[1] ?? 0) > MAX_POS
+  ) {
+    console.error(
+      "Elbow arrow (or update) is outside reasonable bounds (> 1e6)",
+      {
+        arrow,
+        updates,
+      },
+    );
+  }
+  // @ts-ignore See above note
+  arrow.x = clamp(arrow.x, -MAX_POS, MAX_POS);
+  // @ts-ignore See above note
+  arrow.y = clamp(arrow.y, -MAX_POS, MAX_POS);
+  if (updates.points) {
+    updates.points = updates.points.map(([x, y]) =>
+      pointFrom<LocalPoint>(
+        clamp(x, -MAX_POS, MAX_POS),
+        clamp(y, -MAX_POS, MAX_POS),
+      ),
+    );
+  }
+
+  if (!import.meta.env.PROD) {
     invariant(
       !updates.points || updates.points.length >= 2,
       "Updated point array length must match the arrow point length, contain " +
@@ -1174,31 +1220,19 @@ const getElbowArrowData = (
   if (options?.isDragging) {
     const elements = Array.from(elementsMap.values());
     hoveredStartElement =
-      getHoveredElementForBinding(
+      getHoveredElement(
-        tupleToCoors(origStartGlobalPoint),
+        origStartGlobalPoint,
-        elements,
         elementsMap,
+        elements,
         options?.zoom,
-        true,
-        true,
       ) || null;
     hoveredEndElement =
-      getHoveredElementForBinding(
+      getHoveredElement(
-        tupleToCoors(origEndGlobalPoint),
+        origEndGlobalPoint,
-        elements,
         elementsMap,
+        elements,
         options?.zoom,
-        true,
-        true,
       ) || null;
-
-    // Inside the same element there is no binding to the shape
-    if (hoveredStartElement === hoveredEndElement) {
-      hoveredStartElement = null;
-      hoveredEndElement = null;
-      arrow.startBinding = null;
-      arrow.endBinding = null;
-    }
   } else {
     hoveredStartElement = arrow.startBinding
       ? getBindableElementForId(arrow.startBinding.elementId, elementsMap) ||
@@ -1219,7 +1253,6 @@ const getElbowArrowData = (
     "start",
     arrow.startBinding?.fixedPoint,
     origStartGlobalPoint,
-    elementsMap,
     hoveredStartElement,
     options?.isDragging,
   );
@@ -1233,7 +1266,6 @@ const getElbowArrowData = (
     "end",
     arrow.endBinding?.fixedPoint,
     origEndGlobalPoint,
-    elementsMap,
     hoveredEndElement,
     options?.isDragging,
   );
@@ -2075,6 +2107,29 @@ const normalizeArrowElementUpdate = (
     ),
   );
 
+  // NOTE (mtolmacs): This is a temporary check to see if the normalization
+  // creates an overly large arrow. This should be removed once we have an answer.
+  if (
+    offsetX < -MAX_POS ||
+    offsetX > MAX_POS ||
+    offsetY < -MAX_POS ||
+    offsetY > MAX_POS ||
+    offsetX + points[points.length - 1][0] < -MAX_POS ||
+    offsetY + points[points.length - 1][0] > MAX_POS ||
+    offsetX + points[points.length - 1][1] < -MAX_POS ||
+    offsetY + points[points.length - 1][1] > MAX_POS
+  ) {
+    console.error(
+      "Elbow arrow normalization is outside reasonable bounds (> 1e6)",
+      {
+        x: offsetX,
+        y: offsetY,
+        points,
+        ...getSizeFromPoints(points),
+      },
+    );
+  }
+
   points = points.map(([x, y]) =>
     pointFrom<LocalPoint>(clamp(x, -1e6, 1e6), clamp(y, -1e6, 1e6)),
   );
@@ -2154,7 +2209,6 @@ const getGlobalPoint = (
   startOrEnd: "start" | "end",
   fixedPointRatio: [number, number] | undefined | null,
   initialPoint: GlobalPoint,
-  elementsMap: NonDeletedSceneElementsMap,
   element?: ExcalidrawBindableElement | null,
   isDragging?: boolean,
 ): GlobalPoint => {
@@ -2164,7 +2218,6 @@ const getGlobalPoint = (
         arrow,
         element,
         startOrEnd,
-        elementsMap,
       );
 
       return snapToMid(element, snapPoint);
@@ -2184,7 +2237,7 @@ const getGlobalPoint = (
       distanceToBindableElement(element, fixedGlobalPoint) -
         FIXED_BINDING_DISTANCE,
     ) > 0.01
-      ? bindPointToSnapToElementOutline(arrow, element, startOrEnd, elementsMap)
+      ? bindPointToSnapToElementOutline(arrow, element, startOrEnd)
       : fixedGlobalPoint;
   }
 
@@ -2214,6 +2267,22 @@ const getBindPointHeading = (
     origPoint,
   );
 
+const getHoveredElement = (
+  origPoint: GlobalPoint,
+  elementsMap: NonDeletedSceneElementsMap,
+  elements: readonly NonDeletedExcalidrawElement[],
+  zoom?: AppState["zoom"],
+) => {
+  return getHoveredElementForBinding(
+    tupleToCoors(origPoint),
+    elements,
+    elementsMap,
+    zoom,
+    true,
+    true,
+  );
+};
+
 const gridAddressesEqual = (a: GridAddress, b: GridAddress): boolean =>
   a[0] === b[0] && a[1] === b[1];
 

packages/element/src/embeddable.ts

@@ -33,6 +33,8 @@ const RE_GH_GIST = /^https:\/\/gist\.github\.com\/([\w_-]+)\/([\w_-]+)/;
 const RE_GH_GIST_EMBED =
   /^<script[\s\S]*?\ssrc=["'](https:\/\/gist\.github\.com\/.*?)\.js["']/i;
 
+const RE_MSFORMS = /^(?:https?:\/\/)?forms\.microsoft\.com\//;
+
 // not anchored to start to allow <blockquote> twitter embeds
 const RE_TWITTER =
   /(?:https?:\/\/)?(?:(?:w){3}\.)?(?:twitter|x)\.com\/[^/]+\/status\/(\d+)/;
@@ -69,6 +71,7 @@ const ALLOWED_DOMAINS = new Set([
   "val.town",
   "giphy.com",
   "reddit.com",
+  "forms.microsoft.com",
 ]);
 
 const ALLOW_SAME_ORIGIN = new Set([
@@ -82,6 +85,7 @@ const ALLOW_SAME_ORIGIN = new Set([
   "*.simplepdf.eu",
   "stackblitz.com",
   "reddit.com",
+  "forms.microsoft.com",
 ]);
 
 export const createSrcDoc = (body: string) => {
@@ -206,6 +210,10 @@ export const getEmbedLink = (
     };
   }
 
+  if (RE_MSFORMS.test(link) && !link.includes("embed=true")) {
+    link += link.includes("?") ? "&embed=true" : "?embed=true";
+  }
+
   if (RE_TWITTER.test(link)) {
     const postId = link.match(RE_TWITTER)![1];
     // the embed srcdoc still supports twitter.com domain only.

packages/element/src/flowchart.ts

@@ -39,6 +39,8 @@ import {
   type OrderedExcalidrawElement,
 } from "./types";
 
+import type { Scene } from "./Scene";
+
 type LinkDirection = "up" | "right" | "down" | "left";
 
 const VERTICAL_OFFSET = 100;
@@ -236,10 +238,11 @@ const getOffsets = (
 
 const addNewNode = (
   element: ExcalidrawFlowchartNodeElement,
-  elementsMap: ElementsMap,
   appState: AppState,
   direction: LinkDirection,
+  scene: Scene,
 ) => {
+  const elementsMap = scene.getNonDeletedElementsMap();
   const successors = getSuccessors(element, elementsMap, direction);
   const predeccessors = getPredecessors(element, elementsMap, direction);
 
@@ -274,9 +277,9 @@ const addNewNode = (
   const bindingArrow = createBindingArrow(
     element,
     nextNode,
-    elementsMap,
     direction,
     appState,
+    scene,
   );
 
   return {
@@ -287,9 +290,9 @@ const addNewNode = (
 
 export const addNewNodes = (
   startNode: ExcalidrawFlowchartNodeElement,
-  elementsMap: ElementsMap,
   appState: AppState,
   direction: LinkDirection,
+  scene: Scene,
   numberOfNodes: number,
 ) => {
   // always start from 0 and distribute evenly
@@ -352,9 +355,9 @@ export const addNewNodes = (
     const bindingArrow = createBindingArrow(
       startNode,
       nextNode,
-      elementsMap,
       direction,
       appState,
+      scene,
     );
 
     newNodes.push(nextNode);
@@ -367,9 +370,9 @@ export const addNewNodes = (
 const createBindingArrow = (
   startBindingElement: ExcalidrawFlowchartNodeElement,
   endBindingElement: ExcalidrawFlowchartNodeElement,
-  elementsMap: ElementsMap,
   direction: LinkDirection,
   appState: AppState,
+  scene: Scene,
 ) => {
   let startX: number;
   let startY: number;
@@ -440,18 +443,10 @@ const createBindingArrow = (
     elbowed: true,
   });
 
-  bindLinearElement(
+  const elementsMap = scene.getNonDeletedElementsMap();
-    bindingArrow,
+
-    startBindingElement,
+  bindLinearElement(bindingArrow, startBindingElement, "start", scene);
-    "start",
+  bindLinearElement(bindingArrow, endBindingElement, "end", scene);
-    elementsMap as NonDeletedSceneElementsMap,
-  );
-  bindLinearElement(
-    bindingArrow,
-    endBindingElement,
-    "end",
-    elementsMap as NonDeletedSceneElementsMap,
-  );
 
   const changedElements = new Map<string, OrderedExcalidrawElement>();
   changedElements.set(
@@ -467,12 +462,18 @@ const createBindingArrow = (
     bindingArrow as OrderedExcalidrawElement,
   );
 
-  LinearElementEditor.movePoints(bindingArrow, [
+  LinearElementEditor.movePoints(
-    {
+    bindingArrow,
-      index: 1,
+    scene,
-      point: bindingArrow.points[1],
+    new Map([
-    },
+      [
-  ]);
+        1,
+        {
+          point: bindingArrow.points[1],
+        },
+      ],
+    ]),
+  );
 
   const update = updateElbowArrowPoints(
     bindingArrow,
@@ -632,16 +633,17 @@ export class FlowChartCreator {
 
   createNodes(
     startNode: ExcalidrawFlowchartNodeElement,
-    elementsMap: ElementsMap,
     appState: AppState,
     direction: LinkDirection,
+    scene: Scene,
   ) {
+    const elementsMap = scene.getNonDeletedElementsMap();
     if (direction !== this.direction) {
       const { nextNode, bindingArrow } = addNewNode(
         startNode,
-        elementsMap,
         appState,
         direction,
+        scene,
       );
 
       this.numberOfNodes = 1;
@@ -652,9 +654,9 @@ export class FlowChartCreator {
       this.numberOfNodes += 1;
       const newNodes = addNewNodes(
         startNode,
-        elementsMap,
         appState,
         direction,
+        scene,
         this.numberOfNodes,
       );
 
@@ -682,13 +684,9 @@ export class FlowChartCreator {
         )
       ) {
         this.pendingNodes = this.pendingNodes.map((node) =>
-          mutateElement(
+          mutateElement(node, elementsMap, {
-            node,
+            frameId: startNode.frameId,
-            {
+          }),
-              frameId: startNode.frameId,
-            },
-            false,
-          ),
         );
       }
     }

packages/element/src/fractionalIndex.ts

@@ -7,6 +7,7 @@ import { getBoundTextElement } from "./textElement";
 import { hasBoundTextElement } from "./typeChecks";
 
 import type {
+  ElementsMap,
   ExcalidrawElement,
   FractionalIndex,
   OrderedExcalidrawElement,
@@ -152,9 +153,10 @@ export const orderByFractionalIndex = (
  */
 export const syncMovedIndices = (
   elements: readonly ExcalidrawElement[],
-  movedElements: Map<string, ExcalidrawElement>,
+  movedElements: ElementsMap,
 ): OrderedExcalidrawElement[] => {
   try {
+    const elementsMap = arrayToMap(elements);
     const indicesGroups = getMovedIndicesGroups(elements, movedElements);
 
     // try generatating indices, throws on invalid movedElements
@@ -176,7 +178,7 @@ export const syncMovedIndices = (
 
     // split mutation so we don't end up in an incosistent state
     for (const [element, update] of elementsUpdates) {
-      mutateElement(element, update, false);
+      mutateElement(element, elementsMap, update);
     }
   } catch (e) {
     // fallback to default sync
@@ -194,10 +196,12 @@ export const syncMovedIndices = (
 export const syncInvalidIndices = (
   elements: readonly ExcalidrawElement[],
 ): OrderedExcalidrawElement[] => {
+  const elementsMap = arrayToMap(elements);
   const indicesGroups = getInvalidIndicesGroups(elements);
   const elementsUpdates = generateIndices(elements, indicesGroups);
+
   for (const [element, update] of elementsUpdates) {
-    mutateElement(element, update, false);
+    mutateElement(element, elementsMap, update);
   }
 
   return elements as OrderedExcalidrawElement[];
@@ -210,7 +214,7 @@ export const syncInvalidIndices = (
  */
 const getMovedIndicesGroups = (
   elements: readonly ExcalidrawElement[],
-  movedElements: Map<string, ExcalidrawElement>,
+  movedElements: ElementsMap,
 ) => {
   const indicesGroups: number[][] = [];
 

packages/element/src/frame.ts

@@ -3,8 +3,6 @@ import { isPointWithinBounds, pointFrom } from "@excalidraw/math";
 import { doLineSegmentsIntersect } from "@excalidraw/utils/bbox";
 import { elementsOverlappingBBox } from "@excalidraw/utils/withinBounds";
 
-import type { ExcalidrawElementsIncludingDeleted } from "@excalidraw/excalidraw/scene/Scene";
-
 import type {
   AppClassProperties,
   AppState,
@@ -29,6 +27,8 @@ import {
   isTextElement,
 } from "./typeChecks";
 
+import type { ExcalidrawElementsIncludingDeleted } from "./Scene";
+
 import type {
   ElementsMap,
   ElementsMapOrArray,
@@ -41,30 +41,24 @@ import type {
 // --------------------------- Frame State ------------------------------------
 export const bindElementsToFramesAfterDuplication = (
   nextElements: readonly ExcalidrawElement[],
-  oldElements: readonly ExcalidrawElement[],
+  origElements: readonly ExcalidrawElement[],
-  oldIdToDuplicatedId: Map<ExcalidrawElement["id"], ExcalidrawElement["id"]>,
+  origIdToDuplicateId: Map<ExcalidrawElement["id"], ExcalidrawElement["id"]>,
 ) => {
   const nextElementMap = arrayToMap(nextElements) as Map<
     ExcalidrawElement["id"],
     ExcalidrawElement
   >;
 
-  for (const element of oldElements) {
+  for (const element of origElements) {
     if (element.frameId) {
       // use its frameId to get the new frameId
-      const nextElementId = oldIdToDuplicatedId.get(element.id);
+      const nextElementId = origIdToDuplicateId.get(element.id);
-      const nextFrameId = oldIdToDuplicatedId.get(element.frameId);
+      const nextFrameId = origIdToDuplicateId.get(element.frameId);
-      if (nextElementId) {
+      const nextElement = nextElementId && nextElementMap.get(nextElementId);
-        const nextElement = nextElementMap.get(nextElementId);
+      if (nextElement) {
-        if (nextElement) {
+        mutateElement(nextElement, nextElementMap, {
-          mutateElement(
+          frameId: nextFrameId ?? null,
-            nextElement,
+        });
-            {
-              frameId: nextFrameId ?? element.frameId,
-            },
-            false,
-          );
-        }
       }
     }
   }
@@ -567,13 +561,9 @@ export const addElementsToFrame = <T extends ElementsMapOrArray>(
   }
 
   for (const element of finalElementsToAdd) {
-    mutateElement(
+    mutateElement(element, elementsMap, {
-      element,
+      frameId: frame.id,
-      {
+    });
-        frameId: frame.id,
-      },
-      false,
-    );
   }
 
   return allElements;
@@ -611,13 +601,9 @@ export const removeElementsFromFrame = (
   }
 
   for (const [, element] of _elementsToRemove) {
-    mutateElement(
+    mutateElement(element, elementsMap, {
-      element,
+      frameId: null,
-      {
+    });
-        frameId: null,
-      },
-      false,
-    );
   }
 };
 
@@ -919,13 +905,16 @@ export const shouldApplyFrameClip = (
   return false;
 };
 
-export const getFrameLikeTitle = (element: ExcalidrawFrameLikeElement) => {
+const DEFAULT_FRAME_NAME = "Frame";
+const DEFAULT_AI_FRAME_NAME = "AI Frame";
+
+export const getDefaultFrameName = (element: ExcalidrawFrameLikeElement) => {
   // TODO name frames "AI" only if specific to AI frames
-  return element.name === null
+  return isFrameElement(element) ? DEFAULT_FRAME_NAME : DEFAULT_AI_FRAME_NAME;
-    ? isFrameElement(element)
+};
-      ? "Frame"
+
-      : "AI Frame"
+export const getFrameLikeTitle = (element: ExcalidrawFrameLikeElement) => {
-    : element.name;
+  return element.name === null ? getDefaultFrameName(element) : element.name;
 };
 
 export const getElementsOverlappingFrame = (

packages/element/src/index.ts

@@ -1,3 +1,5 @@
+import { toIterable } from "@excalidraw/common";
+
 import { isInvisiblySmallElement } from "./sizeHelpers";
 import { isLinearElementType } from "./typeChecks";
 
@@ -5,6 +7,7 @@ import type {
   ExcalidrawElement,
   NonDeletedExcalidrawElement,
   NonDeleted,
+  ElementsMapOrArray,
 } from "./types";
 
 /**
@@ -16,12 +19,10 @@ export const getSceneVersion = (elements: readonly ExcalidrawElement[]) =>
 /**
  * Hashes elements' versionNonce (using djb2 algo). Order of elements matters.
  */
-export const hashElementsVersion = (
+export const hashElementsVersion = (elements: ElementsMapOrArray): number => {
-  elements: readonly ExcalidrawElement[],
-): number => {
   let hash = 5381;
-  for (let i = 0; i < elements.length; i++) {
+  for (const element of toIterable(elements)) {
-    hash = (hash << 5) + hash + elements[i].versionNonce;
+    hash = (hash << 5) + hash + element.versionNonce;
   }
   return hash >>> 0; // Ensure unsigned 32-bit integer
 };
@@ -71,3 +72,47 @@ export const clearElementsForExport = (
 export const clearElementsForLocalStorage = (
   elements: readonly ExcalidrawElement[],
 ) => _clearElements(elements);
+
+export * from "./align";
+export * from "./binding";
+export * from "./bounds";
+export * from "./collision";
+export * from "./comparisons";
+export * from "./containerCache";
+export * from "./cropElement";
+export * from "./delta";
+export * from "./distance";
+export * from "./distribute";
+export * from "./dragElements";
+export * from "./duplicate";
+export * from "./elbowArrow";
+export * from "./elementLink";
+export * from "./embeddable";
+export * from "./flowchart";
+export * from "./fractionalIndex";
+export * from "./frame";
+export * from "./groups";
+export * from "./heading";
+export * from "./image";
+export * from "./linearElementEditor";
+export * from "./mutateElement";
+export * from "./newElement";
+export * from "./renderElement";
+export * from "./resizeElements";
+export * from "./resizeTest";
+export * from "./Scene";
+export * from "./selection";
+export * from "./Shape";
+export * from "./ShapeCache";
+export * from "./shapes";
+export * from "./showSelectedShapeActions";
+export * from "./sizeHelpers";
+export * from "./sortElements";
+export * from "./store";
+export * from "./textElement";
+export * from "./textMeasurements";
+export * from "./textWrapping";
+export * from "./transformHandles";
+export * from "./typeChecks";
+export * from "./utils";
+export * from "./zindex";

packages/element/src/linearElementEditor.ts

@@ -20,11 +20,7 @@ import {
   tupleToCoors,
 } from "@excalidraw/common";
 
-// TODO: remove direct dependency on the scene, should be passed in or injected instead
+import type { Store } from "@excalidraw/element";
-// eslint-disable-next-line @typescript-eslint/no-restricted-imports
-import Scene from "@excalidraw/excalidraw/scene/Scene";
-
-import type { Store } from "@excalidraw/excalidraw/store";
 
 import type { Radians } from "@excalidraw/math";
 
@@ -42,7 +38,6 @@ import type { Mutable } from "@excalidraw/common/utility-types";
 import {
   bindOrUnbindLinearElement,
   getHoveredElementForBinding,
-  getOutlineAvoidingPoint,
   isBindingEnabled,
 } from "./binding";
 import {
@@ -51,13 +46,10 @@ import {
   getMinMaxXYFromCurvePathOps,
 } from "./bounds";
 
-import { updateElbowArrowPoints } from "./elbowArrow";
-
 import { headingIsHorizontal, vectorToHeading } from "./heading";
-import { bumpVersion, mutateElement } from "./mutateElement";
+import { mutateElement } from "./mutateElement";
 import { getBoundTextElement, handleBindTextResize } from "./textElement";
 import {
-  isArrowElement,
   isBindingElement,
   isElbowArrow,
   isFixedPointBinding,
@@ -75,6 +67,8 @@ import {
 
 import { getLockedLinearCursorAlignSize } from "./sizeHelpers";
 
+import type { Scene } from "./Scene";
+
 import type { Bounds } from "./bounds";
 import type {
   NonDeleted,
@@ -86,16 +80,11 @@ import type {
   ElementsMap,
   NonDeletedSceneElementsMap,
   FixedPointBinding,
-  SceneElementsMap,
   FixedSegment,
   ExcalidrawElbowArrowElement,
+  PointsPositionUpdates,
 } from "./types";
 
-const editorMidPointsCache: {
-  version: number | null;
-  points: (GlobalPoint | null)[];
-  zoom: number | null;
-} = { version: null, points: [], zoom: null };
 export class LinearElementEditor {
   public readonly elementId: ExcalidrawElement["id"] & {
     _brand: "excalidrawLinearElementId";
@@ -129,15 +118,17 @@ export class LinearElementEditor {
   public readonly segmentMidPointHoveredCoords: GlobalPoint | null;
   public readonly elbowed: boolean;
 
-  constructor(element: NonDeleted<ExcalidrawLinearElement>) {
+  constructor(
+    element: NonDeleted<ExcalidrawLinearElement>,
+    elementsMap: ElementsMap,
+  ) {
     this.elementId = element.id as string & {
       _brand: "excalidrawLinearElementId";
     };
     if (!pointsEqual(element.points[0], pointFrom(0, 0))) {
       console.error("Linear element is not normalized", Error().stack);
-      LinearElementEditor.normalizePoints(element);
+      LinearElementEditor.normalizePoints(element, elementsMap);
     }
-
     this.selectedPointsIndices = null;
     this.lastUncommittedPoint = null;
     this.isDragging = false;
@@ -254,28 +245,27 @@ export class LinearElementEditor {
       pointSceneCoords: { x: number; y: number }[],
     ) => void,
     linearElementEditor: LinearElementEditor,
+    scene: Scene,
   ): LinearElementEditor | null {
     if (!linearElementEditor) {
       return null;
     }
     const { elementId } = linearElementEditor;
-    const elementsMap = app.scene.getNonDeletedElementsMap();
+    const elementsMap = scene.getNonDeletedElementsMap();
     const element = LinearElementEditor.getElement(elementId, elementsMap);
     if (!element) {
       return null;
     }
 
-    const elbowed = isElbowArrow(element);
-
     if (
-      elbowed &&
+      isElbowArrow(element) &&
       !linearElementEditor.pointerDownState.lastClickedIsEndPoint &&
       linearElementEditor.pointerDownState.lastClickedPoint !== 0
     ) {
       return null;
     }
 
-    const selectedPointsIndices = elbowed
+    const selectedPointsIndices = isElbowArrow(element)
       ? [
           !!linearElementEditor.selectedPointsIndices?.includes(0)
             ? 0
@@ -285,7 +275,7 @@ export class LinearElementEditor {
             : undefined,
         ].filter((idx): idx is number => idx !== undefined)
       : linearElementEditor.selectedPointsIndices;
-    const lastClickedPoint = elbowed
+    const lastClickedPoint = isElbowArrow(element)
       ? linearElementEditor.pointerDownState.lastClickedPoint > 0
         ? element.points.length - 1
         : 0
@@ -312,16 +302,22 @@ export class LinearElementEditor {
           event[KEYS.CTRL_OR_CMD] ? null : app.getEffectiveGridSize(),
         );
 
-        LinearElementEditor.movePoints(element, [
+        LinearElementEditor.movePoints(
-          {
+          element,
-            index: selectedIndex,
+          scene,
-            point: pointFrom(
+          new Map([
-              width + referencePoint[0],
+            [
-              height + referencePoint[1],
+              selectedIndex,
-            ),
+              {
-            isDragging: selectedIndex === lastClickedPoint,
+                point: pointFrom(
-          },
+                  width + referencePoint[0],
-        ]);
+                  height + referencePoint[1],
+                ),
+                isDragging: selectedIndex === lastClickedPoint,
+              },
+            ],
+          ]),
+        );
       } else {
         const newDraggingPointPosition = LinearElementEditor.createPointAt(
           element,
@@ -336,72 +332,39 @@ export class LinearElementEditor {
 
         LinearElementEditor.movePoints(
           element,
-          selectedPointsIndices.map((pointIndex) => {
+          scene,
-            let newPointPosition: LocalPoint =
+          new Map(
-              pointIndex === lastClickedPoint
+            selectedPointsIndices.map((pointIndex) => {
-                ? LinearElementEditor.createPointAt(
+              const newPointPosition: LocalPoint =
-                    element,
+                pointIndex === lastClickedPoint
-                    elementsMap,
+                  ? LinearElementEditor.createPointAt(
-                    scenePointerX - linearElementEditor.pointerOffset.x,
+                      element,
-                    scenePointerY - linearElementEditor.pointerOffset.y,
+                      elementsMap,
-                    event[KEYS.CTRL_OR_CMD] ? null : app.getEffectiveGridSize(),
+                      scenePointerX - linearElementEditor.pointerOffset.x,
-                  )
+                      scenePointerY - linearElementEditor.pointerOffset.y,
-                : pointFrom(
+                      event[KEYS.CTRL_OR_CMD]
-                    element.points[pointIndex][0] + deltaX,
+                        ? null
-                    element.points[pointIndex][1] + deltaY,
+                        : app.getEffectiveGridSize(),
-                  );
+                    )
-
+                  : pointFrom(
-            if (pointIndex === 0 || pointIndex === element.points.length - 1) {
+                      element.points[pointIndex][0] + deltaX,
-              const [, , , , cx, cy] = getElementAbsoluteCoords(
+                      element.points[pointIndex][1] + deltaY,
-                element,
+                    );
-                elementsMap,
+              return [
-                true,
-              );
-              const newGlobalPointPosition = pointRotateRads(
-                pointFrom<GlobalPoint>(
-                  element.x + newPointPosition[0],
-                  element.y + newPointPosition[1],
-                ),
-                pointFrom<GlobalPoint>(cx, cy),
-                element.angle,
-              );
-              const avoidancePoint = getOutlineAvoidingPoint(
-                element,
-                newGlobalPointPosition,
                 pointIndex,
-                app.scene,
+                {
-                app.state.zoom,
+                  point: newPointPosition,
-              );
+                  isDragging: pointIndex === lastClickedPoint,
-
+                },
-              newPointPosition = LinearElementEditor.createPointAt(
+              ];
-                element,
+            }),
-                elementsMap,
+          ),
-                !isArrowElement(element) ||
-                  avoidancePoint[0] === newGlobalPointPosition[0]
-                  ? newGlobalPointPosition[0] -
-                      linearElementEditor.pointerOffset.x
-                  : avoidancePoint[0],
-                !isArrowElement(element) ||
-                  avoidancePoint[1] === newGlobalPointPosition[1]
-                  ? newGlobalPointPosition[1] -
-                      linearElementEditor.pointerOffset.y
-                  : avoidancePoint[1],
-                null,
-              );
-            }
-
-            return {
-              index: pointIndex,
-              point: newPointPosition,
-              isDragging: pointIndex === lastClickedPoint,
-            };
-          }),
         );
       }
 
       const boundTextElement = getBoundTextElement(element, elementsMap);
       if (boundTextElement) {
-        handleBindTextResize(element, elementsMap, false);
+        handleBindTextResize(element, scene, false);
       }
 
       // suggest bindings for first and last point if selected
@@ -496,15 +459,21 @@ export class LinearElementEditor {
           selectedPoint === element.points.length - 1
         ) {
           if (isPathALoop(element.points, appState.zoom.value)) {
-            LinearElementEditor.movePoints(element, [
+            LinearElementEditor.movePoints(
-              {
+              element,
-                index: selectedPoint,
+              scene,
-                point:
+              new Map([
-                  selectedPoint === 0
+                [
-                    ? element.points[element.points.length - 1]
+                  selectedPoint,
-                    : element.points[0],
+                  {
-              },
+                    point:
-            ]);
+                      selectedPoint === 0
+                        ? element.points[element.points.length - 1]
+                        : element.points[0],
+                  },
+                ],
+              ]),
+            );
           }
 
           const bindingElement = isBindingEnabled(appState)
@@ -562,7 +531,7 @@ export class LinearElementEditor {
     element: NonDeleted<ExcalidrawLinearElement>,
     elementsMap: ElementsMap,
     appState: InteractiveCanvasAppState,
-  ): typeof editorMidPointsCache["points"] => {
+  ): (GlobalPoint | null)[] => {
     const boundText = getBoundTextElement(element, elementsMap);
 
     // Since its not needed outside editor unless 2 pointer lines or bound text
@@ -574,25 +543,7 @@ export class LinearElementEditor {
     ) {
       return [];
     }
-    if (
-      editorMidPointsCache.version === element.version &&
-      editorMidPointsCache.zoom === appState.zoom.value
-    ) {
-      return editorMidPointsCache.points;
-    }
-    LinearElementEditor.updateEditorMidPointsCache(
-      element,
-      elementsMap,
-      appState,
-    );
-    return editorMidPointsCache.points!;
-  };
 
-  static updateEditorMidPointsCache = (
-    element: NonDeleted<ExcalidrawLinearElement>,
-    elementsMap: ElementsMap,
-    appState: InteractiveCanvasAppState,
-  ) => {
     const points = LinearElementEditor.getPointsGlobalCoordinates(
       element,
       elementsMap,
@@ -624,9 +575,8 @@ export class LinearElementEditor {
       midpoints.push(segmentMidPoint);
       index++;
     }
-    editorMidPointsCache.points = midpoints;
+
-    editorMidPointsCache.version = element.version;
+    return midpoints;
-    editorMidPointsCache.zoom = appState.zoom.value;
   };
 
   static getSegmentMidpointHitCoords = (
@@ -680,8 +630,11 @@ export class LinearElementEditor {
       }
     }
     let index = 0;
-    const midPoints: typeof editorMidPointsCache["points"] =
+    const midPoints = LinearElementEditor.getEditorMidPoints(
-      LinearElementEditor.getEditorMidPoints(element, elementsMap, appState);
+      element,
+      elementsMap,
+      appState,
+    );
 
     while (index < midPoints.length) {
       if (midPoints[index] !== null) {
@@ -838,7 +791,7 @@ export class LinearElementEditor {
       );
     } else if (event.altKey && appState.editingLinearElement) {
       if (linearElementEditor.lastUncommittedPoint == null) {
-        mutateElement(element, {
+        scene.mutateElement(element, {
           points: [
             ...element.points,
             LinearElementEditor.createPointAt(
@@ -852,7 +805,7 @@ export class LinearElementEditor {
         });
         ret.didAddPoint = true;
       }
-      store.shouldCaptureIncrement();
+      store.scheduleCapture();
       ret.linearElementEditor = {
         ...linearElementEditor,
         pointerDownState: {
@@ -904,7 +857,6 @@ export class LinearElementEditor {
           element,
           startBindingElement,
           endBindingElement,
-          elementsMap,
           scene,
         );
       }
@@ -977,13 +929,13 @@ export class LinearElementEditor {
     scenePointerX: number,
     scenePointerY: number,
     app: AppClassProperties,
-    elementsMap: NonDeletedSceneElementsMap | SceneElementsMap,
   ): LinearElementEditor | null {
     const appState = app.state;
     if (!appState.editingLinearElement) {
       return null;
     }
     const { elementId, lastUncommittedPoint } = appState.editingLinearElement;
+    const elementsMap = app.scene.getNonDeletedElementsMap();
     const element = LinearElementEditor.getElement(elementId, elementsMap);
     if (!element) {
       return appState.editingLinearElement;
@@ -994,7 +946,9 @@ export class LinearElementEditor {
 
     if (!event.altKey) {
       if (lastPoint === lastUncommittedPoint) {
-        LinearElementEditor.deletePoints(element, [points.length - 1]);
+        LinearElementEditor.deletePoints(element, app.scene, [
+          points.length - 1,
+        ]);
       }
       return {
         ...appState.editingLinearElement,
@@ -1032,14 +986,20 @@ export class LinearElementEditor {
     }
 
     if (lastPoint === lastUncommittedPoint) {
-      LinearElementEditor.movePoints(element, [
+      LinearElementEditor.movePoints(
-        {
+        element,
-          index: element.points.length - 1,
+        app.scene,
-          point: newPoint,
+        new Map([
-        },
+          [
-      ]);
+            element.points.length - 1,
+            {
+              point: newPoint,
+            },
+          ],
+        ]),
+      );
     } else {
-      LinearElementEditor.addPoints(element, [{ point: newPoint }]);
+      LinearElementEditor.addPoints(element, app.scene, [{ point: newPoint }]);
     }
     return {
       ...appState.editingLinearElement,
@@ -1203,23 +1163,26 @@ export class LinearElementEditor {
       y: element.y + offsetY,
     };
   }
-
   // element-mutating methods
   // ---------------------------------------------------------------------------
-
+  static normalizePoints(
-  static normalizePoints(element: NonDeleted<ExcalidrawLinearElement>) {
+    element: NonDeleted<ExcalidrawLinearElement>,
-    mutateElement(element, LinearElementEditor.getNormalizedPoints(element));
+    elementsMap: ElementsMap,
+  ) {
+    mutateElement(
+      element,
+      elementsMap,
+      LinearElementEditor.getNormalizedPoints(element),
+    );
   }
 
-  static duplicateSelectedPoints(
+  static duplicateSelectedPoints(appState: AppState, scene: Scene): AppState {
-    appState: AppState,
-    elementsMap: NonDeletedSceneElementsMap | SceneElementsMap,
-  ): AppState {
     invariant(
       appState.editingLinearElement,
       "Not currently editing a linear element",
     );
 
+    const elementsMap = scene.getNonDeletedElementsMap();
     const { selectedPointsIndices, elementId } = appState.editingLinearElement;
     const element = LinearElementEditor.getElement(elementId, elementsMap);
 
@@ -1262,18 +1225,22 @@ export class LinearElementEditor {
       return acc;
     }, []);
 
-    mutateElement(element, { points: nextPoints });
+    scene.mutateElement(element, { points: nextPoints });
 
     // temp hack to ensure the line doesn't move when adding point to the end,
     // potentially expanding the bounding box
     if (pointAddedToEnd) {
       const lastPoint = element.points[element.points.length - 1];
-      LinearElementEditor.movePoints(element, [
+      LinearElementEditor.movePoints(
-        {
+        element,
-          index: element.points.length - 1,
+        scene,
-          point: pointFrom(lastPoint[0] + 30, lastPoint[1] + 30),
+        new Map([
-        },
+          [
-      ]);
+            element.points.length - 1,
+            { point: pointFrom(lastPoint[0] + 30, lastPoint[1] + 30) },
+          ],
+        ]),
+      );
     }
 
     return {
@@ -1287,6 +1254,7 @@ export class LinearElementEditor {
 
   static deletePoints(
     element: NonDeleted<ExcalidrawLinearElement>,
+    scene: Scene,
     pointIndices: readonly number[],
   ) {
     let offsetX = 0;
@@ -1317,28 +1285,41 @@ export class LinearElementEditor {
       return acc;
     }, []);
 
-    LinearElementEditor._updatePoints(element, nextPoints, offsetX, offsetY);
+    LinearElementEditor._updatePoints(
+      element,
+      scene,
+      nextPoints,
+      offsetX,
+      offsetY,
+    );
   }
 
   static addPoints(
     element: NonDeleted<ExcalidrawLinearElement>,
+    scene: Scene,
     targetPoints: { point: LocalPoint }[],
   ) {
     const offsetX = 0;
     const offsetY = 0;
 
     const nextPoints = [...element.points, ...targetPoints.map((x) => x.point)];
-    LinearElementEditor._updatePoints(element, nextPoints, offsetX, offsetY);
+    LinearElementEditor._updatePoints(
+      element,
+      scene,
+      nextPoints,
+      offsetX,
+      offsetY,
+    );
   }
 
   static movePoints(
     element: NonDeleted<ExcalidrawLinearElement>,
-    targetPoints: { index: number; point: LocalPoint; isDragging?: boolean }[],
+    scene: Scene,
+    pointUpdates: PointsPositionUpdates,
     otherUpdates?: {
       startBinding?: PointBinding | null;
       endBinding?: PointBinding | null;
     },
-    sceneElementsMap?: NonDeletedSceneElementsMap,
   ) {
     const { points } = element;
 
@@ -1348,8 +1329,7 @@ export class LinearElementEditor {
     // offset it. We do the same with actual element.x/y position, so
     // this hacks are completely transparent to the user.
     const [deltaX, deltaY] =
-      targetPoints.find(({ index }) => index === 0)?.point ??
+      pointUpdates.get(0)?.point ?? pointFrom<LocalPoint>(0, 0);
-      pointFrom<LocalPoint>(0, 0);
     const [offsetX, offsetY] = pointFrom<LocalPoint>(
       deltaX - points[0][0],
       deltaY - points[0][1],
@@ -1357,12 +1337,12 @@ export class LinearElementEditor {
 
     const nextPoints = isElbowArrow(element)
       ? [
-          targetPoints.find((t) => t.index === 0)?.point ?? points[0],
+          pointUpdates.get(0)?.point ?? points[0],
-          targetPoints.find((t) => t.index === points.length - 1)?.point ??
+          pointUpdates.get(points.length - 1)?.point ??
             points[points.length - 1],
         ]
       : points.map((p, idx) => {
-          const current = targetPoints.find((t) => t.index === idx)?.point ?? p;
+          const current = pointUpdates.get(idx)?.point ?? p;
 
           return pointFrom<LocalPoint>(
             current[0] - offsetX,
@@ -1372,17 +1352,13 @@ export class LinearElementEditor {
 
     LinearElementEditor._updatePoints(
       element,
+      scene,
       nextPoints,
       offsetX,
       offsetY,
       otherUpdates,
       {
-        isDragging: targetPoints.reduce(
+        isDragging: Array.from(pointUpdates.values()).some((t) => t.isDragging),
-          (dragging, targetPoint): boolean =>
-            dragging || targetPoint.isDragging === true,
-          false,
-        ),
-        sceneElementsMap,
       },
     );
   }
@@ -1437,8 +1413,9 @@ export class LinearElementEditor {
     pointerCoords: PointerCoords,
     app: AppClassProperties,
     snapToGrid: boolean,
-    elementsMap: ElementsMap,
+    scene: Scene,
   ) {
+    const elementsMap = scene.getNonDeletedElementsMap();
     const element = LinearElementEditor.getElement(
       linearElementEditor.elementId,
       elementsMap,
@@ -1468,9 +1445,7 @@ export class LinearElementEditor {
       ...element.points.slice(segmentMidpoint.index!),
     ];
 
-    mutateElement(element, {
+    scene.mutateElement(element, { points });
-      points,
-    });
 
     ret.pointerDownState = {
       ...linearElementEditor.pointerDownState,
@@ -1486,6 +1461,7 @@ export class LinearElementEditor {
 
   private static _updatePoints(
     element: NonDeleted<ExcalidrawLinearElement>,
+    scene: Scene,
     nextPoints: readonly LocalPoint[],
     offsetX: number,
     offsetY: number,
@@ -1522,28 +1498,10 @@ export class LinearElementEditor {
 
       updates.points = Array.from(nextPoints);
 
-      if (!options?.sceneElementsMap || Scene.getScene(element)) {
+      scene.mutateElement(element, updates, {
-        mutateElement(element, updates, true, {
+        informMutation: true,
-          isDragging: options?.isDragging,
+        isDragging: options?.isDragging ?? false,
-        });
+      });
-      } else {
-        // The element is not in the scene, so we need to use the provided
-        // scene map.
-        Object.assign(element, {
-          ...updates,
-          angle: 0 as Radians,
-
-          ...updateElbowArrowPoints(
-            element,
-            options.sceneElementsMap,
-            updates,
-            {
-              isDragging: options?.isDragging,
-            },
-          ),
-        });
-      }
-      bumpVersion(element);
     } else {
       const nextCoords = getElementPointsCoords(element, nextPoints);
       const prevCoords = getElementPointsCoords(element, element.points);
@@ -1558,7 +1516,7 @@ export class LinearElementEditor {
         pointFrom(dX, dY),
         element.angle,
       );
-      mutateElement(element, {
+      scene.mutateElement(element, {
         ...otherUpdates,
         points: nextPoints,
         x: element.x + rotated[0],
@@ -1617,7 +1575,7 @@ export class LinearElementEditor {
       elementsMap,
     );
     if (points.length < 2) {
-      mutateElement(boundTextElement, { isDeleted: true });
+      mutateElement(boundTextElement, elementsMap, { isDeleted: true });
     }
     let x = 0;
     let y = 0;
@@ -1632,23 +1590,14 @@ export class LinearElementEditor {
       y = midPoint[1] - boundTextElement.height / 2;
     } else {
       const index = element.points.length / 2 - 1;
+      const midSegmentMidpoint = LinearElementEditor.getSegmentMidPoint(
+        element,
+        points[index],
+        points[index + 1],
+        index + 1,
+        elementsMap,
+      );
 
-      let midSegmentMidpoint = editorMidPointsCache.points[index];
-      if (element.points.length === 2) {
-        midSegmentMidpoint = pointCenter(points[0], points[1]);
-      }
-      if (
-        !midSegmentMidpoint ||
-        editorMidPointsCache.version !== element.version
-      ) {
-        midSegmentMidpoint = LinearElementEditor.getSegmentMidPoint(
-          element,
-          points[index],
-          points[index + 1],
-          index + 1,
-          elementsMap,
-        );
-      }
       x = midSegmentMidpoint[0] - boundTextElement.width / 2;
       y = midSegmentMidpoint[1] - boundTextElement.height / 2;
     }
@@ -1824,8 +1773,9 @@ export class LinearElementEditor {
     index: number,
     x: number,
     y: number,
-    elementsMap: ElementsMap,
+    scene: Scene,
   ): LinearElementEditor {
+    const elementsMap = scene.getNonDeletedElementsMap();
     const element = LinearElementEditor.getElement(
       linearElement.elementId,
       elementsMap,
@@ -1868,7 +1818,7 @@ export class LinearElementEditor {
         .map((segment) => segment.index)
         .reduce((count, idx) => (idx < index ? count + 1 : count), 0);
 
-      mutateElement(element, {
+      scene.mutateElement(element, {
         fixedSegments: nextFixedSegments,
       });
 
@@ -1902,14 +1852,14 @@ export class LinearElementEditor {
 
   static deleteFixedSegment(
     element: ExcalidrawElbowArrowElement,
+    scene: Scene,
     index: number,
   ): void {
-    mutateElement(element, {
+    scene.mutateElement(element, {
       fixedSegments: element.fixedSegments?.filter(
         (segment) => segment.index !== index,
       ),
     });
-    mutateElement(element, {}, true);
   }
 }
 

packages/element/src/mutateElement.ts

@@ -2,13 +2,8 @@ import {
   getSizeFromPoints,
   randomInteger,
   getUpdatedTimestamp,
-  toBrandedType,
 } from "@excalidraw/common";
 
-// TODO: remove direct dependency on the scene, should be passed in or injected instead
-// eslint-disable-next-line @typescript-eslint/no-restricted-imports
-import Scene from "@excalidraw/excalidraw/scene/Scene";
-
 import type { Radians } from "@excalidraw/math";
 
 import type { Mutable } from "@excalidraw/common/utility-types";
@@ -16,35 +11,42 @@ import type { Mutable } from "@excalidraw/common/utility-types";
 import { ShapeCache } from "./ShapeCache";
 
 import { updateElbowArrowPoints } from "./elbowArrow";
+
 import { isElbowArrow } from "./typeChecks";
 
-import type { ExcalidrawElement, NonDeletedSceneElementsMap } from "./types";
+import type {
+  ElementsMap,
+  ExcalidrawElbowArrowElement,
+  ExcalidrawElement,
+  NonDeletedSceneElementsMap,
+} from "./types";
 
 export type ElementUpdate<TElement extends ExcalidrawElement> = Omit<
   Partial<TElement>,
   "id" | "version" | "versionNonce" | "updated"
 >;
 
-// This function tracks updates of text elements for the purposes for collaboration.
+/**
-// The version is used to compare updates when more than one user is working in
+ * This function tracks updates of text elements for the purposes for collaboration.
-// the same drawing. Note: this will trigger the component to update. Make sure you
+ * The version is used to compare updates when more than one user is working in
-// are calling it either from a React event handler or within unstable_batchedUpdates().
+ * the same drawing.
+ *
+ * WARNING: this won't trigger the component to update, so if you need to trigger component update,
+ * use `scene.mutateElement` or `ExcalidrawImperativeAPI.mutateElement` instead.
+ */
 export const mutateElement = <TElement extends Mutable<ExcalidrawElement>>(
   element: TElement,
+  elementsMap: ElementsMap,
   updates: ElementUpdate<TElement>,
-  informMutation = true,
   options?: {
-    // Currently only for elbow arrows.
-    // If true, the elbow arrow tries to bind to the nearest element. If false
-    // it tries to keep the same bound element, if any.
     isDragging?: boolean;
   },
-): TElement => {
+) => {
   let didChange = false;
 
   // casting to any because can't use `in` operator
   // (see https://github.com/microsoft/TypeScript/issues/21732)
-  const { points, fixedSegments, fileId, startBinding, endBinding } =
+  const { points, fixedSegments, startBinding, endBinding, fileId } =
     updates as any;
 
   if (
@@ -55,10 +57,6 @@ export const mutateElement = <TElement extends Mutable<ExcalidrawElement>>(
       typeof startBinding !== "undefined" ||
       typeof endBinding !== "undefined") // manual binding to element
   ) {
-    const elementsMap = toBrandedType<NonDeletedSceneElementsMap>(
-      Scene.getScene(element)?.getNonDeletedElementsMap() ?? new Map(),
-    );
-
     updates = {
       ...updates,
       angle: 0 as Radians,
@@ -68,16 +66,9 @@ export const mutateElement = <TElement extends Mutable<ExcalidrawElement>>(
           x: updates.x || element.x,
           y: updates.y || element.y,
         },
-        elementsMap,
+        elementsMap as NonDeletedSceneElementsMap,
-        {
+        updates as ElementUpdate<ExcalidrawElbowArrowElement>,
-          fixedSegments,
+        options,
-          points,
-          startBinding,
-          endBinding,
-        },
-        {
-          isDragging: options?.isDragging,
-        },
       ),
     };
   } else if (typeof points !== "undefined") {
@@ -150,10 +141,6 @@ export const mutateElement = <TElement extends Mutable<ExcalidrawElement>>(
   element.versionNonce = randomInteger();
   element.updated = getUpdatedTimestamp();
 
-  if (informMutation) {
-    Scene.getScene(element)?.triggerUpdate();
-  }
-
   return element;
 };
 

packages/element/src/newElement.ts

@@ -44,7 +44,6 @@ import type {
   ExcalidrawIframeElement,
   ElementsMap,
   ExcalidrawArrowElement,
-  FixedSegment,
   ExcalidrawElbowArrowElement,
 } from "./types";
 
@@ -98,6 +97,28 @@ const _newElementBase = <T extends ExcalidrawElement>(
     ...rest
   }: ElementConstructorOpts & Omit<Partial<ExcalidrawGenericElement>, "type">,
 ) => {
+  // NOTE (mtolmacs): This is a temporary check to detect extremely large
+  // element position or sizing
+  if (
+    x < -1e6 ||
+    x > 1e6 ||
+    y < -1e6 ||
+    y > 1e6 ||
+    width < -1e6 ||
+    width > 1e6 ||
+    height < -1e6 ||
+    height > 1e6
+  ) {
+    console.error("New element size or position is too large", {
+      x,
+      y,
+      width,
+      height,
+      // @ts-ignore
+      points: rest.points,
+    });
+  }
+
   // assign type to guard against excess properties
   const element: Merge<ExcalidrawGenericElement, { type: T["type"] }> = {
     id: rest.id || randomId(),
@@ -456,7 +477,7 @@ export const newArrowElement = <T extends boolean>(
     endArrowhead?: Arrowhead | null;
     points?: ExcalidrawArrowElement["points"];
     elbowed?: T;
-    fixedSegments?: FixedSegment[] | null;
+    fixedSegments?: ExcalidrawElbowArrowElement["fixedSegments"] | null;
   } & ElementConstructorOpts,
 ): T extends true
   ? NonDeleted<ExcalidrawElbowArrowElement>

packages/element/src/renderElement.ts

@@ -351,12 +351,20 @@ const generateElementCanvas = (
 
 export const DEFAULT_LINK_SIZE = 14;
 
-const IMAGE_PLACEHOLDER_IMG = document.createElement("img");
+const IMAGE_PLACEHOLDER_IMG =
+  typeof document !== "undefined"
+    ? document.createElement("img")
+    : ({ src: "" } as HTMLImageElement); // mock image element outside of browser
+
 IMAGE_PLACEHOLDER_IMG.src = `data:${MIME_TYPES.svg},${encodeURIComponent(
   `<svg aria-hidden="true" focusable="false" data-prefix="fas" data-icon="image" class="svg-inline--fa fa-image fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="#888" d="M464 448H48c-26.51 0-48-21.49-48-48V112c0-26.51 21.49-48 48-48h416c26.51 0 48 21.49 48 48v288c0 26.51-21.49 48-48 48zM112 120c-30.928 0-56 25.072-56 56s25.072 56 56 56 56-25.072 56-56-25.072-56-56-56zM64 384h384V272l-87.515-87.515c-4.686-4.686-12.284-4.686-16.971 0L208 320l-55.515-55.515c-4.686-4.686-12.284-4.686-16.971 0L64 336v48z"></path></svg>`,
 )}`;
 
-const IMAGE_ERROR_PLACEHOLDER_IMG = document.createElement("img");
+const IMAGE_ERROR_PLACEHOLDER_IMG =
+  typeof document !== "undefined"
+    ? document.createElement("img")
+    : ({ src: "" } as HTMLImageElement); // mock image element outside of browser
+
 IMAGE_ERROR_PLACEHOLDER_IMG.src = `data:${MIME_TYPES.svg},${encodeURIComponent(
   `<svg viewBox="0 0 668 668" xmlns="http://www.w3.org/2000/svg" xml:space="preserve" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2"><path d="M464 448H48c-26.51 0-48-21.49-48-48V112c0-26.51 21.49-48 48-48h416c26.51 0 48 21.49 48 48v288c0 26.51-21.49 48-48 48ZM112 120c-30.928 0-56 25.072-56 56s25.072 56 56 56 56-25.072 56-56-25.072-56-56-56ZM64 384h384V272l-87.515-87.515c-4.686-4.686-12.284-4.686-16.971 0L208 320l-55.515-55.515c-4.686-4.686-12.284-4.686-16.971 0L64 336v48Z" style="fill:#888;fill-rule:nonzero" transform="matrix(.81709 0 0 .81709 124.825 145.825)"/><path d="M256 8C119.034 8 8 119.033 8 256c0 136.967 111.034 248 248 248s248-111.034 248-248S392.967 8 256 8Zm130.108 117.892c65.448 65.448 70 165.481 20.677 235.637L150.47 105.216c70.204-49.356 170.226-44.735 235.638 20.676ZM125.892 386.108c-65.448-65.448-70-165.481-20.677-235.637L361.53 406.784c-70.203 49.356-170.226 44.736-235.638-20.676Z" style="fill:#888;fill-rule:nonzero" transform="matrix(.30366 0 0 .30366 506.822 60.065)"/></svg>`,
 )}`;

packages/element/src/resizeElements.ts

@@ -17,8 +17,6 @@ import {
 
 import type { GlobalPoint } from "@excalidraw/math";
 
-import type Scene from "@excalidraw/excalidraw/scene/Scene";
-
 import type { PointerDownState } from "@excalidraw/excalidraw/types";
 
 import type { Mutable } from "@excalidraw/common/utility-types";
@@ -32,7 +30,6 @@ import {
   getElementBounds,
 } from "./bounds";
 import { LinearElementEditor } from "./linearElementEditor";
-import { mutateElement } from "./mutateElement";
 import {
   getBoundTextElement,
   getBoundTextElementId,
@@ -60,6 +57,8 @@ import {
 
 import { isInGroup } from "./groups";
 
+import type { Scene } from "./Scene";
+
 import type { BoundingBox } from "./bounds";
 import type {
   MaybeTransformHandleType,
@@ -74,7 +73,6 @@ import type {
   ExcalidrawTextElementWithContainer,
   ExcalidrawImageElement,
   ElementsMap,
-  SceneElementsMap,
   ExcalidrawElbowArrowElement,
 } from "./types";
 
@@ -83,7 +81,6 @@ export const transformElements = (
   originalElements: PointerDownState["originalElements"],
   transformHandleType: MaybeTransformHandleType,
   selectedElements: readonly NonDeletedExcalidrawElement[],
-  elementsMap: SceneElementsMap,
   scene: Scene,
   shouldRotateWithDiscreteAngle: boolean,
   shouldResizeFromCenter: boolean,
@@ -93,31 +90,31 @@ export const transformElements = (
   centerX: number,
   centerY: number,
 ): boolean => {
+  const elementsMap = scene.getNonDeletedElementsMap();
   if (selectedElements.length === 1) {
     const [element] = selectedElements;
     if (transformHandleType === "rotation") {
       if (!isElbowArrow(element)) {
         rotateSingleElement(
           element,
-          elementsMap,
           scene,
           pointerX,
           pointerY,
           shouldRotateWithDiscreteAngle,
         );
-        updateBoundElements(element, elementsMap);
+        updateBoundElements(element, scene);
       }
     } else if (isTextElement(element) && transformHandleType) {
       resizeSingleTextElement(
         originalElements,
         element,
-        elementsMap,
+        scene,
         transformHandleType,
         shouldResizeFromCenter,
         pointerX,
         pointerY,
       );
-      updateBoundElements(element, elementsMap);
+      updateBoundElements(element, scene);
       return true;
     } else if (transformHandleType) {
       const elementId = selectedElements[0].id;
@@ -129,8 +126,6 @@ export const transformElements = (
           getNextSingleWidthAndHeightFromPointer(
             latestElement,
             origElement,
-            elementsMap,
-            originalElements,
             transformHandleType,
             pointerX,
             pointerY,
@@ -145,8 +140,8 @@ export const transformElements = (
           nextHeight,
           latestElement,
           origElement,
-          elementsMap,
           originalElements,
+          scene,
           transformHandleType,
           {
             shouldMaintainAspectRatio,
@@ -161,7 +156,6 @@ export const transformElements = (
       rotateMultipleElements(
         originalElements,
         selectedElements,
-        elementsMap,
         scene,
         pointerX,
         pointerY,
@@ -210,13 +204,15 @@ export const transformElements = (
 
 const rotateSingleElement = (
   element: NonDeletedExcalidrawElement,
-  elementsMap: ElementsMap,
   scene: Scene,
   pointerX: number,
   pointerY: number,
   shouldRotateWithDiscreteAngle: boolean,
 ) => {
-  const [x1, y1, x2, y2] = getElementAbsoluteCoords(element, elementsMap);
+  const [x1, y1, x2, y2] = getElementAbsoluteCoords(
+    element,
+    scene.getNonDeletedElementsMap(),
+  );
   const cx = (x1 + x2) / 2;
   const cy = (y1 + y2) / 2;
   let angle: Radians;
@@ -233,13 +229,13 @@ const rotateSingleElement = (
   }
   const boundTextElementId = getBoundTextElementId(element);
 
-  mutateElement(element, { angle });
+  scene.mutateElement(element, { angle });
   if (boundTextElementId) {
     const textElement =
       scene.getElement<ExcalidrawTextElementWithContainer>(boundTextElementId);
 
     if (textElement && !isArrowElement(element)) {
-      mutateElement(textElement, { angle });
+      scene.mutateElement(textElement, { angle });
     }
   }
 };
@@ -289,12 +285,13 @@ export const measureFontSizeFromWidth = (
 const resizeSingleTextElement = (
   originalElements: PointerDownState["originalElements"],
   element: NonDeleted<ExcalidrawTextElement>,
-  elementsMap: ElementsMap,
+  scene: Scene,
   transformHandleType: TransformHandleDirection,
   shouldResizeFromCenter: boolean,
   pointerX: number,
   pointerY: number,
 ) => {
+  const elementsMap = scene.getNonDeletedElementsMap();
   const [x1, y1, x2, y2, cx, cy] = getElementAbsoluteCoords(
     element,
     elementsMap,
@@ -393,7 +390,7 @@ const resizeSingleTextElement = (
     );
     const [nextX, nextY] = newTopLeft;
 
-    mutateElement(element, {
+    scene.mutateElement(element, {
       fontSize: metrics.size,
       width: nextWidth,
       height: nextHeight,
@@ -508,14 +505,13 @@ const resizeSingleTextElement = (
       autoResize: false,
     };
 
-    mutateElement(element, resizedElement);
+    scene.mutateElement(element, resizedElement);
   }
 };
 
 const rotateMultipleElements = (
   originalElements: PointerDownState["originalElements"],
   elements: readonly NonDeletedExcalidrawElement[],
-  elementsMap: SceneElementsMap,
   scene: Scene,
   pointerX: number,
   pointerY: number,
@@ -523,6 +519,7 @@ const rotateMultipleElements = (
   centerX: number,
   centerY: number,
 ) => {
+  const elementsMap = scene.getNonDeletedElementsMap();
   let centerAngle =
     (5 * Math.PI) / 2 + Math.atan2(pointerY - centerY, pointerX - centerX);
   if (shouldRotateWithDiscreteAngle) {
@@ -543,38 +540,30 @@ const rotateMultipleElements = (
         (centerAngle + origAngle - element.angle) as Radians,
       );
 
-      if (isElbowArrow(element)) {
+      const updates = isElbowArrow(element)
-        // Needed to re-route the arrow
+        ? {
-        mutateElement(element, {
+            // Needed to re-route the arrow
-          points: getArrowLocalFixedPoints(element, elementsMap),
+            points: getArrowLocalFixedPoints(element, elementsMap),
-        });
+          }
-      } else {
+        : {
-        mutateElement(
-          element,
-          {
             x: element.x + (rotatedCX - cx),
             y: element.y + (rotatedCY - cy),
             angle: normalizeRadians((centerAngle + origAngle) as Radians),
-          },
+          };
-          false,
-        );
-      }
 
-      updateBoundElements(element, elementsMap, {
+      scene.mutateElement(element, updates);
+
+      updateBoundElements(element, scene, {
         simultaneouslyUpdated: elements,
       });
 
       const boundText = getBoundTextElement(element, elementsMap);
       if (boundText && !isArrowElement(element)) {
-        mutateElement(
+        scene.mutateElement(boundText, {
-          boundText,
+          x: boundText.x + (rotatedCX - cx),
-          {
+          y: boundText.y + (rotatedCY - cy),
-            x: boundText.x + (rotatedCX - cx),
+          angle: normalizeRadians((centerAngle + origAngle) as Radians),
-            y: boundText.y + (rotatedCY - cy),
+        });
-            angle: normalizeRadians((centerAngle + origAngle) as Radians),
-          },
-          false,
-        );
       }
     }
   }
@@ -819,8 +808,8 @@ export const resizeSingleElement = (
   nextHeight: number,
   latestElement: ExcalidrawElement,
   origElement: ExcalidrawElement,
-  elementsMap: ElementsMap,
   originalElementsMap: ElementsMap,
+  scene: Scene,
   handleDirection: TransformHandleDirection,
   {
     shouldInformMutation = true,
@@ -833,6 +822,7 @@ export const resizeSingleElement = (
   } = {},
 ) => {
   let boundTextFont: { fontSize?: number } = {};
+  const elementsMap = scene.getNonDeletedElementsMap();
   const boundTextElement = getBoundTextElement(latestElement, elementsMap);
 
   if (boundTextElement) {
@@ -932,7 +922,7 @@ export const resizeSingleElement = (
   }
 
   if ("scale" in latestElement && "scale" in origElement) {
-    mutateElement(latestElement, {
+    scene.mutateElement(latestElement, {
       scale: [
         // defaulting because scaleX/Y can be 0/-0
         (Math.sign(nextWidth) || origElement.scale[0]) * origElement.scale[0],
@@ -967,29 +957,33 @@ export const resizeSingleElement = (
       ...rescaledPoints,
     };
 
-    mutateElement(latestElement, updates, shouldInformMutation);
+    scene.mutateElement(latestElement, updates, {
-
+      informMutation: shouldInformMutation,
-    updateBoundElements(latestElement, elementsMap as SceneElementsMap);
+      isDragging: false,
+    });
 
     if (boundTextElement && boundTextFont != null) {
-      mutateElement(boundTextElement, {
+      scene.mutateElement(boundTextElement, {
         fontSize: boundTextFont.fontSize,
       });
     }
     handleBindTextResize(
       latestElement,
-      elementsMap,
+      scene,
       handleDirection,
       shouldMaintainAspectRatio,
     );
+
+    updateBoundElements(latestElement, scene, {
+      // TODO: confirm with MARK if this actually makes sense
+      newSize: { width: nextWidth, height: nextHeight },
+    });
   }
 };
 
 const getNextSingleWidthAndHeightFromPointer = (
   latestElement: ExcalidrawElement,
   origElement: ExcalidrawElement,
-  elementsMap: ElementsMap,
-  originalElementsMap: ElementsMap,
   handleDirection: TransformHandleDirection,
   pointerX: number,
   pointerY: number,
@@ -1522,28 +1516,26 @@ export const resizeMultipleElements = (
       element,
       update: { boundTextFontSize, ...update },
     } of elementsAndUpdates) {
-      const { angle } = update;
+      const { width, height, angle } = update;
 
-      mutateElement(element, update, false, {
+      scene.mutateElement(element, update, {
+        informMutation: true,
         // needed for the fixed binding point udpate to take effect
         isDragging: true,
       });
 
-      updateBoundElements(element, elementsMap as SceneElementsMap, {
+      updateBoundElements(element, scene, {
         simultaneouslyUpdated: elementsToUpdate,
+        newSize: { width, height },
       });
 
       const boundTextElement = getBoundTextElement(element, elementsMap);
       if (boundTextElement && boundTextFontSize) {
-        mutateElement(
+        scene.mutateElement(boundTextElement, {
-          boundTextElement,
+          fontSize: boundTextFontSize,
-          {
+          angle: isLinearElement(element) ? undefined : angle,
-            fontSize: boundTextFontSize,
+        });
-            angle: isLinearElement(element) ? undefined : angle,
+        handleBindTextResize(element, scene, handleDirection, true);
-          },
-          false,
-        );
-        handleBindTextResize(element, elementsMap, handleDirection, true);
       }
     }
 

packages/element/src/selection.ts

@@ -1,4 +1,4 @@
-import { isShallowEqual } from "@excalidraw/common";
+import { arrayToMap, isShallowEqual } from "@excalidraw/common";
 
 import type {
   AppState,
@@ -7,13 +7,20 @@ import type {
 
 import { getElementAbsoluteCoords, getElementBounds } from "./bounds";
 import { isElementInViewport } from "./sizeHelpers";
-import { isBoundToContainer, isFrameLikeElement } from "./typeChecks";
+import {
+  isBoundToContainer,
+  isFrameLikeElement,
+  isLinearElement,
+} from "./typeChecks";
 import {
   elementOverlapsWithFrame,
   getContainingFrame,
   getFrameChildren,
 } from "./frame";
 
+import { LinearElementEditor } from "./linearElementEditor";
+import { selectGroupsForSelectedElements } from "./groups";
+
 import type {
   ElementsMap,
   ElementsMapOrArray,
@@ -162,25 +169,6 @@ export const isSomeElementSelected = (function () {
   return ret;
 })();
 
-/**
- * Returns common attribute (picked by `getAttribute` callback) of selected
- *  elements. If elements don't share the same value, returns `null`.
- */
-export const getCommonAttributeOfSelectedElements = <T>(
-  elements: readonly NonDeletedExcalidrawElement[],
-  appState: Pick<AppState, "selectedElementIds">,
-  getAttribute: (element: ExcalidrawElement) => T,
-): T | null => {
-  const attributes = Array.from(
-    new Set(
-      getSelectedElements(elements, appState).map((element) =>
-        getAttribute(element),
-      ),
-    ),
-  );
-  return attributes.length === 1 ? attributes[0] : null;
-};
-
 export const getSelectedElements = (
   elements: ElementsMapOrArray,
   appState: Pick<InteractiveCanvasAppState, "selectedElementIds">,
@@ -254,3 +242,49 @@ export const makeNextSelectedElementIds = (
 
   return nextSelectedElementIds;
 };
+
+const _getLinearElementEditor = (
+  targetElements: readonly ExcalidrawElement[],
+  allElements: readonly NonDeletedExcalidrawElement[],
+) => {
+  const linears = targetElements.filter(isLinearElement);
+  if (linears.length === 1) {
+    const linear = linears[0];
+    const boundElements = linear.boundElements?.map((def) => def.id) ?? [];
+    const onlySingleLinearSelected = targetElements.every(
+      (el) => el.id === linear.id || boundElements.includes(el.id),
+    );
+
+    if (onlySingleLinearSelected) {
+      return new LinearElementEditor(linear, arrayToMap(allElements));
+    }
+  }
+
+  return null;
+};
+
+export const getSelectionStateForElements = (
+  targetElements: readonly ExcalidrawElement[],
+  allElements: readonly NonDeletedExcalidrawElement[],
+  appState: AppState,
+) => {
+  return {
+    selectedLinearElement: _getLinearElementEditor(targetElements, allElements),
+    ...selectGroupsForSelectedElements(
+      {
+        editingGroupId: appState.editingGroupId,
+        selectedElementIds: excludeElementsInFramesFromSelection(
+          targetElements,
+        ).reduce((acc: Record<ExcalidrawElement["id"], true>, element) => {
+          if (!isBoundToContainer(element)) {
+            acc[element.id] = true;
+          }
+          return acc;
+        }, {}),
+      },
+      allElements,
+      appState,
+      null,
+    ),
+  };
+};

packages/element/src/shapes.ts

@@ -4,6 +4,7 @@ import {
   LINE_CONFIRM_THRESHOLD,
   ROUNDNESS,
   invariant,
+  elementCenterPoint,
 } from "@excalidraw/common";
 import {
   isPoint,
@@ -297,7 +298,7 @@ export const aabbForElement = (
     midY: element.y + element.height / 2,
   };
 
-  const center = pointFrom(bbox.midX, bbox.midY);
+  const center = elementCenterPoint(element);
   const [topLeftX, topLeftY] = pointRotateRads(
     pointFrom(bbox.minX, bbox.minY),
     center,

packages/element/src/sizeHelpers.ts

@@ -6,7 +6,6 @@ import {
 import type { AppState, Offsets, Zoom } from "@excalidraw/excalidraw/types";
 
 import { getCommonBounds, getElementBounds } from "./bounds";
-import { mutateElement } from "./mutateElement";
 import { isFreeDrawElement, isLinearElement } from "./typeChecks";
 
 import type { ElementsMap, ExcalidrawElement } from "./types";
@@ -170,41 +169,6 @@ export const getLockedLinearCursorAlignSize = (
   return { width, height };
 };
 
-export const resizePerfectLineForNWHandler = (
-  element: ExcalidrawElement,
-  x: number,
-  y: number,
-) => {
-  const anchorX = element.x + element.width;
-  const anchorY = element.y + element.height;
-  const distanceToAnchorX = x - anchorX;
-  const distanceToAnchorY = y - anchorY;
-  if (Math.abs(distanceToAnchorX) < Math.abs(distanceToAnchorY) / 2) {
-    mutateElement(element, {
-      x: anchorX,
-      width: 0,
-      y,
-      height: -distanceToAnchorY,
-    });
-  } else if (Math.abs(distanceToAnchorY) < Math.abs(element.width) / 2) {
-    mutateElement(element, {
-      y: anchorY,
-      height: 0,
-    });
-  } else {
-    const nextHeight =
-      Math.sign(distanceToAnchorY) *
-      Math.sign(distanceToAnchorX) *
-      element.width;
-    mutateElement(element, {
-      x,
-      y: anchorY - nextHeight,
-      width: -distanceToAnchorX,
-      height: nextHeight,
-    });
-  }
-};
-
 export const getNormalizedDimensions = (
   element: Pick<ExcalidrawElement, "width" | "height" | "x" | "y">,
 ): {

packages/element/src/store.ts

@@ -0,0 +1,972 @@
+import {
+  assertNever,
+  COLOR_PALETTE,
+  isDevEnv,
+  isTestEnv,
+  randomId,
+  Emitter,
+  toIterable,
+} from "@excalidraw/common";
+
+import type App from "@excalidraw/excalidraw/components/App";
+
+import type { DTO, ValueOf } from "@excalidraw/common/utility-types";
+
+import type { AppState, ObservedAppState } from "@excalidraw/excalidraw/types";
+
+import { deepCopyElement } from "./duplicate";
+import { newElementWith } from "./mutateElement";
+
+import { ElementsDelta, AppStateDelta, Delta } from "./delta";
+
+import { hashElementsVersion, hashString } from "./index";
+
+import type { OrderedExcalidrawElement, SceneElementsMap } from "./types";
+
+export const CaptureUpdateAction = {
+  /**
+   * Immediately undoable.
+   *
+   * Use for updates which should be captured.
+   * Should be used for most of the local updates, except ephemerals such as dragging or resizing.
+   *
+   * These updates will _immediately_ make it to the local undo / redo stacks.
+   */
+  IMMEDIATELY: "IMMEDIATELY",
+  /**
+   * Never undoable.
+   *
+   * Use for updates which should never be recorded, such as remote updates
+   * or scene initialization.
+   *
+   * These updates will _never_ make it to the local undo / redo stacks.
+   */
+  NEVER: "NEVER",
+  /**
+   * Eventually undoable.
+   *
+   * Use for updates which should not be captured immediately - likely
+   * exceptions which are part of some async multi-step process. Otherwise, all
+   * such updates would end up being captured with the next
+   * `CaptureUpdateAction.IMMEDIATELY` - triggered either by the next `updateScene`
+   * or internally by the editor.
+   *
+   * These updates will _eventually_ make it to the local undo / redo stacks.
+   */
+  EVENTUALLY: "EVENTUALLY",
+} as const;
+
+export type CaptureUpdateActionType = ValueOf<typeof CaptureUpdateAction>;
+
+type MicroActionsQueue = (() => void)[];
+
+/**
+ * Store which captures the observed changes and emits them as `StoreIncrement` events.
+ */
+export class Store {
+  // internally used by history
+  public readonly onDurableIncrementEmitter = new Emitter<[DurableIncrement]>();
+  public readonly onStoreIncrementEmitter = new Emitter<
+    [DurableIncrement | EphemeralIncrement]
+  >();
+
+  private scheduledMacroActions: Set<CaptureUpdateActionType> = new Set();
+  private scheduledMicroActions: MicroActionsQueue = [];
+
+  private _snapshot = StoreSnapshot.empty();
+
+  public get snapshot() {
+    return this._snapshot;
+  }
+
+  public set snapshot(snapshot: StoreSnapshot) {
+    this._snapshot = snapshot;
+  }
+
+  constructor(private readonly app: App) {}
+
+  public scheduleAction(action: CaptureUpdateActionType) {
+    this.scheduledMacroActions.add(action);
+    this.satisfiesScheduledActionsInvariant();
+  }
+
+  /**
+   * Use to schedule a delta calculation, which will consquentially be emitted as `DurableStoreIncrement` and pushed in the undo stack.
+   */
+  // TODO: Suspicious that this is called so many places. Seems error-prone.
+  public scheduleCapture() {
+    this.scheduleAction(CaptureUpdateAction.IMMEDIATELY);
+  }
+
+  /**
+   * Schedule special "micro" actions, to-be executed before the next commit, before it executes a scheduled "macro" action.
+   */
+  public scheduleMicroAction(
+    params:
+      | {
+          action: CaptureUpdateActionType;
+          elements: SceneElementsMap | undefined;
+          appState: AppState | ObservedAppState | undefined;
+        }
+      | {
+          action: typeof CaptureUpdateAction.IMMEDIATELY;
+          change: StoreChange;
+          delta: StoreDelta;
+        }
+      | {
+          action:
+            | typeof CaptureUpdateAction.NEVER
+            | typeof CaptureUpdateAction.EVENTUALLY;
+          change: StoreChange;
+        },
+  ) {
+    const { action } = params;
+
+    let change: StoreChange;
+
+    if ("change" in params) {
+      change = params.change;
+    } else {
+      // immediately create an immutable change of the scheduled updates,
+      // compared to the current state, so that they won't mutate later on during batching
+      const currentSnapshot = StoreSnapshot.create(
+        this.app.scene.getElementsMapIncludingDeleted(),
+        this.app.state,
+      );
+      const scheduledSnapshot = currentSnapshot.maybeClone(
+        action,
+        params.elements,
+        params.appState,
+      );
+
+      change = StoreChange.create(currentSnapshot, scheduledSnapshot);
+    }
+
+    const delta = "delta" in params ? params.delta : undefined;
+
+    this.scheduledMicroActions.push(() =>
+      this.processAction({
+        action,
+        change,
+        delta,
+      }),
+    );
+  }
+
+  /**
+   * Performs the incoming `CaptureUpdateAction` and emits the corresponding `StoreIncrement`.
+   * Emits `DurableStoreIncrement` when action is "capture", emits `EphemeralStoreIncrement` otherwise.
+   *
+   * @emits StoreIncrement
+   */
+  public commit(
+    elements: SceneElementsMap | undefined,
+    appState: AppState | ObservedAppState | undefined,
+  ): void {
+    // execute all scheduled micro actions first
+    // similar to microTasks, there can be many
+    this.flushMicroActions();
+
+    try {
+      // execute a single scheduled "macro" function
+      // similar to macro tasks, there can be only one within a single commit (loop)
+      const action = this.getScheduledMacroAction();
+      this.processAction({ action, elements, appState });
+    } finally {
+      this.satisfiesScheduledActionsInvariant();
+      // defensively reset all scheduled "macro" actions, possibly cleans up other runtime garbage
+      this.scheduledMacroActions = new Set();
+    }
+  }
+
+  /**
+   * Clears the store instance.
+   */
+  public clear(): void {
+    this.snapshot = StoreSnapshot.empty();
+    this.scheduledMacroActions = new Set();
+  }
+
+  /**
+   * Performs delta & change calculation and emits a durable increment.
+   *
+   * @emits StoreIncrement.
+   */
+  private emitDurableIncrement(
+    snapshot: StoreSnapshot,
+    change: StoreChange | undefined = undefined,
+    delta: StoreDelta | undefined = undefined,
+  ) {
+    const prevSnapshot = this.snapshot;
+
+    let storeChange: StoreChange;
+    let storeDelta: StoreDelta;
+
+    if (change) {
+      storeChange = change;
+    } else {
+      storeChange = StoreChange.create(prevSnapshot, snapshot);
+    }
+
+    if (delta) {
+      // we might have the delta already (i.e. when applying history entry), thus we don't need to calculate it again
+      // using the same instance, since in history we have a check against `HistoryEntry`, so that we don't re-record the same delta again
+      storeDelta = delta;
+    } else {
+      // calculate the deltas based on the previous and next snapshot
+      const elementsDelta = snapshot.metadata.didElementsChange
+        ? ElementsDelta.calculate(prevSnapshot.elements, snapshot.elements)
+        : ElementsDelta.empty();
+
+      const appStateDelta = snapshot.metadata.didAppStateChange
+        ? AppStateDelta.calculate(prevSnapshot.appState, snapshot.appState)
+        : AppStateDelta.empty();
+
+      storeDelta = StoreDelta.create(elementsDelta, appStateDelta);
+    }
+
+    if (!storeDelta.isEmpty()) {
+      const increment = new DurableIncrement(storeChange, storeDelta);
+
+      // Notify listeners with the increment
+      this.onDurableIncrementEmitter.trigger(increment);
+      this.onStoreIncrementEmitter.trigger(increment);
+    }
+  }
+
+  /**
+   * Performs change calculation and emits an ephemeral increment.
+   *
+   * @emits EphemeralStoreIncrement
+   */
+  private emitEphemeralIncrement(
+    snapshot: StoreSnapshot,
+    change: StoreChange | undefined = undefined,
+  ) {
+    let storeChange: StoreChange;
+
+    if (change) {
+      storeChange = change;
+    } else {
+      const prevSnapshot = this.snapshot;
+      storeChange = StoreChange.create(prevSnapshot, snapshot);
+    }
+
+    const increment = new EphemeralIncrement(storeChange);
+
+    // Notify listeners with the increment
+    this.onStoreIncrementEmitter.trigger(increment);
+  }
+
+  private applyChangeToSnapshot(change: StoreChange) {
+    const prevSnapshot = this.snapshot;
+    const nextSnapshot = this.snapshot.applyChange(change);
+
+    if (prevSnapshot === nextSnapshot) {
+      return null;
+    }
+
+    return nextSnapshot;
+  }
+
+  /**
+   * Clones the snapshot if there are changes detected.
+   */
+  private maybeCloneSnapshot(
+    action: CaptureUpdateActionType,
+    elements: SceneElementsMap | undefined,
+    appState: AppState | ObservedAppState | undefined,
+  ) {
+    if (!elements && !appState) {
+      return null;
+    }
+
+    const prevSnapshot = this.snapshot;
+    const nextSnapshot = this.snapshot.maybeClone(action, elements, appState);
+
+    if (prevSnapshot === nextSnapshot) {
+      return null;
+    }
+
+    return nextSnapshot;
+  }
+
+  private flushMicroActions() {
+    for (const microAction of this.scheduledMicroActions) {
+      try {
+        microAction();
+      } catch (error) {
+        console.error(`Failed to execute scheduled micro action`, error);
+      }
+    }
+
+    this.scheduledMicroActions = [];
+  }
+
+  private processAction(
+    params:
+      | {
+          action: CaptureUpdateActionType;
+          elements: SceneElementsMap | undefined;
+          appState: AppState | ObservedAppState | undefined;
+        }
+      | {
+          action: CaptureUpdateActionType;
+          change: StoreChange;
+          delta: StoreDelta | undefined;
+        },
+  ) {
+    const { action } = params;
+
+    // perf. optimisation, since "EVENTUALLY" does not update the snapshot,
+    // so if nobody is listening for increments, we don't need to even clone the snapshot
+    // as it's only needed for `StoreChange` computation inside `EphemeralIncrement`
+    if (
+      action === CaptureUpdateAction.EVENTUALLY &&
+      !this.onStoreIncrementEmitter.subscribers.length
+    ) {
+      return;
+    }
+
+    let nextSnapshot: StoreSnapshot | null;
+
+    if ("change" in params) {
+      nextSnapshot = this.applyChangeToSnapshot(params.change);
+    } else {
+      nextSnapshot = this.maybeCloneSnapshot(
+        action,
+        params.elements,
+        params.appState,
+      );
+    }
+
+    if (!nextSnapshot) {
+      // don't continue if there is not change detected
+      return;
+    }
+
+    const change = "change" in params ? params.change : undefined;
+    const delta = "delta" in params ? params.delta : undefined;
+
+    try {
+      switch (action) {
+        // only immediately emits a durable increment
+        case CaptureUpdateAction.IMMEDIATELY:
+          this.emitDurableIncrement(nextSnapshot, change, delta);
+          break;
+        // both never and eventually emit an ephemeral increment
+        case CaptureUpdateAction.NEVER:
+        case CaptureUpdateAction.EVENTUALLY:
+          this.emitEphemeralIncrement(nextSnapshot, change);
+          break;
+        default:
+          assertNever(action, `Unknown store action`);
+      }
+    } finally {
+      // update the snapshot no-matter what, as it would mess up with the next action
+      switch (action) {
+        // both immediately and never update the snapshot, unlike eventually
+        case CaptureUpdateAction.IMMEDIATELY:
+        case CaptureUpdateAction.NEVER:
+          this.snapshot = nextSnapshot;
+          break;
+      }
+    }
+  }
+
+  /**
+   * Returns the scheduled macro action.
+   */
+  private getScheduledMacroAction() {
+    let scheduledAction: CaptureUpdateActionType;
+
+    if (this.scheduledMacroActions.has(CaptureUpdateAction.IMMEDIATELY)) {
+      // Capture has a precedence over update, since it also performs snapshot update
+      scheduledAction = CaptureUpdateAction.IMMEDIATELY;
+    } else if (this.scheduledMacroActions.has(CaptureUpdateAction.NEVER)) {
+      // Update has a precedence over none, since it also emits an (ephemeral) increment
+      scheduledAction = CaptureUpdateAction.NEVER;
+    } else {
+      // Default is to emit ephemeral increment and don't update the snapshot
+      scheduledAction = CaptureUpdateAction.EVENTUALLY;
+    }
+
+    return scheduledAction;
+  }
+
+  /**
+   * Ensures that the scheduled actions invariant is satisfied.
+   */
+  private satisfiesScheduledActionsInvariant() {
+    if (
+      !(
+        this.scheduledMacroActions.size >= 0 &&
+        this.scheduledMacroActions.size <=
+          Object.keys(CaptureUpdateAction).length
+      )
+    ) {
+      const message = `There can be at most three store actions scheduled at the same time, but there are "${this.scheduledMacroActions.size}".`;
+      console.error(message, this.scheduledMacroActions.values());
+
+      if (isTestEnv() || isDevEnv()) {
+        throw new Error(message);
+      }
+    }
+  }
+}
+
+/**
+ * Repsents a change to the store containing changed elements and appState.
+ */
+export class StoreChange {
+  // so figuring out what has changed should ideally be just quick reference checks
+  // TODO: we might need to have binary files here as well, in order to be drop-in replacement for `onChange`
+  private constructor(
+    public readonly elements: Record<string, OrderedExcalidrawElement>,
+    public readonly appState: Partial<ObservedAppState>,
+  ) {}
+
+  public static create(
+    prevSnapshot: StoreSnapshot,
+    nextSnapshot: StoreSnapshot,
+  ) {
+    const changedElements = nextSnapshot.getChangedElements(prevSnapshot);
+    const changedAppState = nextSnapshot.getChangedAppState(prevSnapshot);
+
+    return new StoreChange(changedElements, changedAppState);
+  }
+}
+
+/**
+ * Encpasulates any change to the store (durable or ephemeral).
+ */
+export abstract class StoreIncrement {
+  protected constructor(
+    public readonly type: "durable" | "ephemeral",
+    public readonly change: StoreChange,
+  ) {}
+
+  public static isDurable(
+    increment: StoreIncrement,
+  ): increment is DurableIncrement {
+    return increment.type === "durable";
+  }
+
+  public static isEphemeral(
+    increment: StoreIncrement,
+  ): increment is EphemeralIncrement {
+    return increment.type === "ephemeral";
+  }
+}
+
+/**
+ * Represents a durable change to the store.
+ */
+export class DurableIncrement extends StoreIncrement {
+  constructor(
+    public readonly change: StoreChange,
+    public readonly delta: StoreDelta,
+  ) {
+    super("durable", change);
+  }
+}
+
+/**
+ * Represents an ephemeral change to the store.
+ */
+export class EphemeralIncrement extends StoreIncrement {
+  constructor(public readonly change: StoreChange) {
+    super("ephemeral", change);
+  }
+}
+
+/**
+ * Represents a captured delta by the Store.
+ */
+export class StoreDelta {
+  protected constructor(
+    public readonly id: string,
+    public readonly elements: ElementsDelta,
+    public readonly appState: AppStateDelta,
+  ) {}
+
+  /**
+   * Create a new instance of `StoreDelta`.
+   */
+  public static create(
+    elements: ElementsDelta,
+    appState: AppStateDelta,
+    opts: {
+      id: string;
+    } = {
+      id: randomId(),
+    },
+  ) {
+    return new this(opts.id, elements, appState);
+  }
+
+  /**
+   * Restore a store delta instance from a DTO.
+   */
+  public static restore(storeDeltaDTO: DTO<StoreDelta>) {
+    const { id, elements, appState } = storeDeltaDTO;
+    return new this(
+      id,
+      ElementsDelta.restore(elements),
+      AppStateDelta.restore(appState),
+    );
+  }
+
+  /**
+   * Parse and load the delta from the remote payload.
+   */
+  public static load({
+    id,
+    elements: { added, removed, updated },
+  }: DTO<StoreDelta>) {
+    const elements = ElementsDelta.create(added, removed, updated, {
+      shouldRedistribute: false,
+    });
+
+    return new this(id, elements, AppStateDelta.empty());
+  }
+
+  /**
+   * Inverse store delta, creates new instance of `StoreDelta`.
+   */
+  public static inverse(delta: StoreDelta): StoreDelta {
+    return this.create(delta.elements.inverse(), delta.appState.inverse());
+  }
+
+  /**
+   * Apply latest (remote) changes to the delta, creates new instance of `StoreDelta`.
+   */
+  public static applyLatestChanges(
+    delta: StoreDelta,
+    elements: SceneElementsMap,
+    modifierOptions: "deleted" | "inserted",
+  ): StoreDelta {
+    return this.create(
+      delta.elements.applyLatestChanges(elements, modifierOptions),
+      delta.appState,
+      {
+        id: delta.id,
+      },
+    );
+  }
+
+  /**
+   * Apply the delta to the passed elements and appState, does not modify the snapshot.
+   */
+  public static applyTo(
+    delta: StoreDelta,
+    elements: SceneElementsMap,
+    appState: AppState,
+    prevSnapshot: StoreSnapshot = StoreSnapshot.empty(),
+  ): [SceneElementsMap, AppState, boolean] {
+    const [nextElements, elementsContainVisibleChange] = delta.elements.applyTo(
+      elements,
+      prevSnapshot.elements,
+    );
+
+    const [nextAppState, appStateContainsVisibleChange] =
+      delta.appState.applyTo(appState, nextElements);
+
+    const appliedVisibleChanges =
+      elementsContainVisibleChange || appStateContainsVisibleChange;
+
+    return [nextElements, nextAppState, appliedVisibleChanges];
+  }
+
+  public isEmpty() {
+    return this.elements.isEmpty() && this.appState.isEmpty();
+  }
+}
+
+/**
+ * Represents a snapshot of the captured or updated changes in the store,
+ * used for producing deltas and emitting `DurableStoreIncrement`s.
+ */
+export class StoreSnapshot {
+  private _lastChangedElementsHash: number = 0;
+  private _lastChangedAppStateHash: number = 0;
+
+  private constructor(
+    public readonly elements: SceneElementsMap,
+    public readonly appState: ObservedAppState,
+    public readonly metadata: {
+      didElementsChange: boolean;
+      didAppStateChange: boolean;
+      isEmpty?: boolean;
+    } = {
+      didElementsChange: false,
+      didAppStateChange: false,
+      isEmpty: false,
+    },
+  ) {}
+
+  public static create(
+    elements: SceneElementsMap,
+    appState: AppState | ObservedAppState,
+    metadata: {
+      didElementsChange: boolean;
+      didAppStateChange: boolean;
+    } = {
+      didElementsChange: false,
+      didAppStateChange: false,
+    },
+  ) {
+    return new StoreSnapshot(
+      elements,
+      isObservedAppState(appState) ? appState : getObservedAppState(appState),
+      metadata,
+    );
+  }
+
+  public static empty() {
+    return new StoreSnapshot(
+      new Map() as SceneElementsMap,
+      getDefaultObservedAppState(),
+      {
+        didElementsChange: false,
+        didAppStateChange: false,
+        isEmpty: true,
+      },
+    );
+  }
+
+  public getChangedElements(prevSnapshot: StoreSnapshot) {
+    const changedElements: Record<string, OrderedExcalidrawElement> = {};
+
+    for (const prevElement of toIterable(prevSnapshot.elements)) {
+      const nextElement = this.elements.get(prevElement.id);
+
+      if (!nextElement) {
+        changedElements[prevElement.id] = newElementWith(prevElement, {
+          isDeleted: true,
+        });
+      }
+    }
+
+    for (const nextElement of toIterable(this.elements)) {
+      // Due to the structural clone inside `maybeClone`, we can perform just these reference checks
+      if (prevSnapshot.elements.get(nextElement.id) !== nextElement) {
+        changedElements[nextElement.id] = nextElement;
+      }
+    }
+
+    return changedElements;
+  }
+
+  public getChangedAppState(
+    prevSnapshot: StoreSnapshot,
+  ): Partial<ObservedAppState> {
+    return Delta.getRightDifferences(
+      prevSnapshot.appState,
+      this.appState,
+    ).reduce(
+      (acc, key) =>
+        Object.assign(acc, {
+          [key]: this.appState[key as keyof ObservedAppState],
+        }),
+      {} as Partial<ObservedAppState>,
+    );
+  }
+
+  public isEmpty() {
+    return this.metadata.isEmpty;
+  }
+
+  /**
+   * Apply the change and return a new snapshot instance.
+   */
+  public applyChange(change: StoreChange): StoreSnapshot {
+    const nextElements = new Map(this.elements) as SceneElementsMap;
+
+    for (const [id, changedElement] of Object.entries(change.elements)) {
+      nextElements.set(id, changedElement);
+    }
+
+    const nextAppState = Object.assign(
+      {},
+      this.appState,
+      change.appState,
+    ) as ObservedAppState;
+
+    return StoreSnapshot.create(nextElements, nextAppState, {
+      // by default we assume that change is different from what we have in the snapshot
+      // so that we trigger the delta calculation and if it isn't different, delta will be empty
+      didElementsChange: Object.keys(change.elements).length > 0,
+      didAppStateChange: Object.keys(change.appState).length > 0,
+    });
+  }
+
+  /**
+   * Efficiently clone the existing snapshot, only if we detected changes.
+   *
+   * @returns same instance if there are no changes detected, new instance otherwise.
+   */
+  public maybeClone(
+    action: CaptureUpdateActionType,
+    elements: SceneElementsMap | undefined,
+    appState: AppState | ObservedAppState | undefined,
+  ) {
+    const options = {
+      shouldCompareHashes: false,
+    };
+
+    if (action === CaptureUpdateAction.EVENTUALLY) {
+      // actions that do not update the snapshot immediately, must be additionally checked for changes against the latest hash
+      // as we are always comparing against the latest snapshot, so they would emit elements or appState as changed on every component update
+      // instead of just the first time the elements or appState actually changed
+      options.shouldCompareHashes = true;
+    }
+
+    const nextElementsSnapshot = this.maybeCreateElementsSnapshot(
+      elements,
+      options,
+    );
+    const nextAppStateSnapshot = this.maybeCreateAppStateSnapshot(
+      appState,
+      options,
+    );
+
+    let didElementsChange = false;
+    let didAppStateChange = false;
+
+    if (this.elements !== nextElementsSnapshot) {
+      didElementsChange = true;
+    }
+
+    if (this.appState !== nextAppStateSnapshot) {
+      didAppStateChange = true;
+    }
+
+    if (!didElementsChange && !didAppStateChange) {
+      return this;
+    }
+
+    const snapshot = new StoreSnapshot(
+      nextElementsSnapshot,
+      nextAppStateSnapshot,
+      {
+        didElementsChange,
+        didAppStateChange,
+      },
+    );
+
+    return snapshot;
+  }
+
+  private maybeCreateAppStateSnapshot(
+    appState: AppState | ObservedAppState | undefined,
+    options: {
+      shouldCompareHashes: boolean;
+    } = {
+      shouldCompareHashes: false,
+    },
+  ): ObservedAppState {
+    if (!appState) {
+      return this.appState;
+    }
+
+    // Not watching over everything from the app state, just the relevant props
+    const nextAppStateSnapshot = !isObservedAppState(appState)
+      ? getObservedAppState(appState)
+      : appState;
+
+    const didAppStateChange = this.detectChangedAppState(
+      nextAppStateSnapshot,
+      options,
+    );
+
+    if (!didAppStateChange) {
+      return this.appState;
+    }
+
+    return nextAppStateSnapshot;
+  }
+
+  private maybeCreateElementsSnapshot(
+    elements: SceneElementsMap | undefined,
+    options: {
+      shouldCompareHashes: boolean;
+    } = {
+      shouldCompareHashes: false,
+    },
+  ): SceneElementsMap {
+    if (!elements) {
+      return this.elements;
+    }
+
+    const changedElements = this.detectChangedElements(elements, options);
+
+    if (!changedElements?.size) {
+      return this.elements;
+    }
+
+    const elementsSnapshot = this.createElementsSnapshot(changedElements);
+    return elementsSnapshot;
+  }
+
+  private detectChangedAppState(
+    nextObservedAppState: ObservedAppState,
+    options: {
+      shouldCompareHashes: boolean;
+    } = {
+      shouldCompareHashes: false,
+    },
+  ): boolean | undefined {
+    if (this.appState === nextObservedAppState) {
+      return;
+    }
+
+    const didAppStateChange = Delta.isRightDifferent(
+      this.appState,
+      nextObservedAppState,
+    );
+
+    if (!didAppStateChange) {
+      return;
+    }
+
+    const changedAppStateHash = hashString(
+      JSON.stringify(nextObservedAppState),
+    );
+
+    if (
+      options.shouldCompareHashes &&
+      this._lastChangedAppStateHash === changedAppStateHash
+    ) {
+      return;
+    }
+
+    this._lastChangedAppStateHash = changedAppStateHash;
+
+    return didAppStateChange;
+  }
+
+  /**
+   * Detect if there any changed elements.
+   */
+  private detectChangedElements(
+    nextElements: SceneElementsMap,
+    options: {
+      shouldCompareHashes: boolean;
+    } = {
+      shouldCompareHashes: false,
+    },
+  ): SceneElementsMap | undefined {
+    if (this.elements === nextElements) {
+      return;
+    }
+
+    const changedElements: SceneElementsMap = new Map() as SceneElementsMap;
+
+    for (const prevElement of toIterable(this.elements)) {
+      const nextElement = nextElements.get(prevElement.id);
+
+      if (!nextElement) {
+        // element was deleted
+        changedElements.set(
+          prevElement.id,
+          newElementWith(prevElement, { isDeleted: true }),
+        );
+      }
+    }
+
+    for (const nextElement of toIterable(nextElements)) {
+      const prevElement = this.elements.get(nextElement.id);
+
+      if (
+        !prevElement || // element was added
+        prevElement.version < nextElement.version // element was updated
+      ) {
+        changedElements.set(nextElement.id, nextElement);
+      }
+    }
+
+    if (!changedElements.size) {
+      return;
+    }
+
+    const changedElementsHash = hashElementsVersion(changedElements);
+
+    if (
+      options.shouldCompareHashes &&
+      this._lastChangedElementsHash === changedElementsHash
+    ) {
+      return;
+    }
+
+    this._lastChangedElementsHash = changedElementsHash;
+
+    return changedElements;
+  }
+
+  /**
+   * Perform structural clone, deep cloning only elements that changed.
+   */
+  private createElementsSnapshot(changedElements: SceneElementsMap) {
+    const clonedElements = new Map() as SceneElementsMap;
+
+    for (const prevElement of toIterable(this.elements)) {
+      // Clone previous elements, never delete, in case nextElements would be just a subset of previous elements
+      // i.e. during collab, persist or whenenever isDeleted elements get cleared
+      clonedElements.set(prevElement.id, prevElement);
+    }
+
+    for (const changedElement of toIterable(changedElements)) {
+      // TODO: consider just creating new instance, once we can ensure that all reference properties on every element are immutable
+      // TODO: consider creating a lazy deep clone, having a one-time-usage proxy over the snapshotted element and deep cloning only if it gets mutated
+      clonedElements.set(changedElement.id, deepCopyElement(changedElement));
+    }
+
+    return clonedElements;
+  }
+}
+
+// hidden non-enumerable property for runtime checks
+const hiddenObservedAppStateProp = "__observedAppState";
+
+const getDefaultObservedAppState = (): ObservedAppState => {
+  return {
+    name: null,
+    editingGroupId: null,
+    viewBackgroundColor: COLOR_PALETTE.white,
+    selectedElementIds: {},
+    selectedGroupIds: {},
+    editingLinearElementId: null,
+    selectedLinearElementId: null,
+    croppingElementId: null,
+    activeLockedId: null,
+    lockedMultiSelections: {},
+  };
+};
+
+export const getObservedAppState = (appState: AppState): ObservedAppState => {
+  const observedAppState = {
+    name: appState.name,
+    editingGroupId: appState.editingGroupId,
+    viewBackgroundColor: appState.viewBackgroundColor,
+    selectedElementIds: appState.selectedElementIds,
+    selectedGroupIds: appState.selectedGroupIds,
+    editingLinearElementId: appState.editingLinearElement?.elementId || null,
+    selectedLinearElementId: appState.selectedLinearElement?.elementId || null,
+    croppingElementId: appState.croppingElementId,
+    activeLockedId: appState.activeLockedId,
+    lockedMultiSelections: appState.lockedMultiSelections,
+  };
+
+  Reflect.defineProperty(observedAppState, hiddenObservedAppStateProp, {
+    value: true,
+    enumerable: false,
+  });
+
+  return observedAppState;
+};
+
+const isObservedAppState = (
+  appState: AppState | ObservedAppState,
+): appState is ObservedAppState =>
+  !!Reflect.get(appState, hiddenObservedAppStateProp);

packages/element/src/textElement.ts

@@ -6,18 +6,22 @@ import {
   TEXT_ALIGN,
   VERTICAL_ALIGN,
   getFontString,
+  isProdEnv,
+  invariant,
 } from "@excalidraw/common";
 
 import type { AppState } from "@excalidraw/excalidraw/types";
 
 import type { ExtractSetType } from "@excalidraw/common/utility-types";
 
+import type { Radians } from "@excalidraw/math";
+
 import {
   resetOriginalContainerCache,
   updateOriginalContainerCache,
 } from "./containerCache";
 import { LinearElementEditor } from "./linearElementEditor";
-import { mutateElement } from "./mutateElement";
+
 import { measureText } from "./textMeasurements";
 import { wrapText } from "./textWrapping";
 import {
@@ -26,6 +30,8 @@ import {
   isTextElement,
 } from "./typeChecks";
 
+import type { Scene } from "./Scene";
+
 import type { MaybeTransformHandleType } from "./transformHandles";
 import type {
   ElementsMap,
@@ -40,17 +46,30 @@ import type {
 export const redrawTextBoundingBox = (
   textElement: ExcalidrawTextElement,
   container: ExcalidrawElement | null,
-  elementsMap: ElementsMap,
+  scene: Scene,
-  informMutation = true,
 ) => {
+  const elementsMap = scene.getNonDeletedElementsMap();
+
   let maxWidth = undefined;
+
+  if (!isProdEnv()) {
+    invariant(
+      !container || !isArrowElement(container) || textElement.angle === 0,
+      "text element angle must be 0 if bound to arrow container",
+    );
+  }
+
   const boundTextUpdates = {
     x: textElement.x,
     y: textElement.y,
     text: textElement.text,
     width: textElement.width,
     height: textElement.height,
-    angle: container?.angle ?? textElement.angle,
+    angle: (container
+      ? isArrowElement(container)
+        ? 0
+        : container.angle
+      : textElement.angle) as Radians,
   };
 
   boundTextUpdates.text = textElement.text;
@@ -90,38 +109,43 @@ export const redrawTextBoundingBox = (
         metrics.height,
         container.type,
       );
-      mutateElement(container, { height: nextHeight }, informMutation);
+      scene.mutateElement(container, { height: nextHeight });
       updateOriginalContainerCache(container.id, nextHeight);
     }
+
     if (metrics.width > maxContainerWidth) {
       const nextWidth = computeContainerDimensionForBoundText(
         metrics.width,
         container.type,
       );
-      mutateElement(container, { width: nextWidth }, informMutation);
+      scene.mutateElement(container, { width: nextWidth });
     }
+
     const updatedTextElement = {
       ...textElement,
       ...boundTextUpdates,
     } as ExcalidrawTextElementWithContainer;
+
     const { x, y } = computeBoundTextPosition(
       container,
       updatedTextElement,
       elementsMap,
     );
+
     boundTextUpdates.x = x;
     boundTextUpdates.y = y;
   }
 
-  mutateElement(textElement, boundTextUpdates, informMutation);
+  scene.mutateElement(textElement, boundTextUpdates);
 };
 
 export const handleBindTextResize = (
   container: NonDeletedExcalidrawElement,
-  elementsMap: ElementsMap,
+  scene: Scene,
   transformHandleType: MaybeTransformHandleType,
   shouldMaintainAspectRatio = false,
 ) => {
+  const elementsMap = scene.getNonDeletedElementsMap();
   const boundTextElementId = getBoundTextElementId(container);
   if (!boundTextElementId) {
     return;
@@ -174,20 +198,20 @@ export const handleBindTextResize = (
           transformHandleType === "n")
           ? container.y - diff
           : container.y;
-      mutateElement(container, {
+      scene.mutateElement(container, {
         height: containerHeight,
         y: updatedY,
       });
     }
 
-    mutateElement(textElement, {
+    scene.mutateElement(textElement, {
       text,
       width: nextWidth,
       height: nextHeight,
     });
 
     if (!isArrowElement(container)) {
-      mutateElement(
+      scene.mutateElement(
         textElement,
         computeBoundTextPosition(container, textElement, elementsMap),
       );
@@ -335,7 +359,10 @@ export const getTextElementAngle = (
   textElement: ExcalidrawTextElement,
   container: ExcalidrawTextContainer | null,
 ) => {
-  if (!container || isArrowElement(container)) {
+  if (isArrowElement(container)) {
+    return 0;
+  }
+  if (!container) {
     return textElement.angle;
   }
   return container.angle;

packages/element/src/typeChecks.ts

@@ -28,6 +28,7 @@ import type {
   PointBinding,
   FixedPointBinding,
   ExcalidrawFlowchartNodeElement,
+  ExcalidrawLinearElementSubType,
 } from "./types";
 
 export const isInitializedImageElement = (
@@ -119,6 +120,20 @@ export const isElbowArrow = (
   return isArrowElement(element) && element.elbowed;
 };
 
+export const isSharpArrow = (
+  element?: ExcalidrawElement,
+): element is ExcalidrawArrowElement => {
+  return isArrowElement(element) && !element.elbowed && !element.roundness;
+};
+
+export const isCurvedArrow = (
+  element?: ExcalidrawElement,
+): element is ExcalidrawArrowElement => {
+  return (
+    isArrowElement(element) && !element.elbowed && element.roundness !== null
+  );
+};
+
 export const isLinearElementType = (
   elementType: ElementOrToolType,
 ): boolean => {
@@ -130,7 +145,7 @@ export const isLinearElementType = (
 export const isBindingElement = (
   element?: ExcalidrawElement | null,
   includeLocked = true,
-): element is ExcalidrawArrowElement => {
+): element is ExcalidrawLinearElement => {
   return (
     element != null &&
     (!element.locked || includeLocked === true) &&
@@ -271,6 +286,10 @@ export const isBoundToContainer = (
   );
 };
 
+export const isArrowBoundToElement = (element: ExcalidrawArrowElement) => {
+  return !!element.startBinding || !!element.endBinding;
+};
+
 export const isUsingAdaptiveRadius = (type: string) =>
   type === "rectangle" ||
   type === "embeddable" ||
@@ -338,3 +357,18 @@ export const isBounds = (box: unknown): box is Bounds =>
   typeof box[1] === "number" &&
   typeof box[2] === "number" &&
   typeof box[3] === "number";
+
+export const getLinearElementSubType = (
+  element: ExcalidrawLinearElement,
+): ExcalidrawLinearElementSubType => {
+  if (isSharpArrow(element)) {
+    return "sharpArrow";
+  }
+  if (isCurvedArrow(element)) {
+    return "curvedArrow";
+  }
+  if (isElbowArrow(element)) {
+    return "elbowArrow";
+  }
+  return "line";
+};

packages/element/src/types.ts

@@ -296,6 +296,11 @@ export type FixedPointBinding = Merge<
   }
 >;
 
+export type PointsPositionUpdates = Map<
+  number,
+  { point: LocalPoint; isDragging?: boolean }
+>;
+
 export type Arrowhead =
   | "arrow"
   | "bar"
@@ -412,3 +417,13 @@ export type NonDeletedSceneElementsMap = Map<
 export type ElementsMapOrArray =
   | readonly ExcalidrawElement[]
   | Readonly<ElementsMap>;
+
+export type ExcalidrawLinearElementSubType =
+  | "line"
+  | "sharpArrow"
+  | "curvedArrow"
+  | "elbowArrow";
+
+export type ConvertibleGenericTypes = "rectangle" | "diamond" | "ellipse";
+export type ConvertibleLinearTypes = ExcalidrawLinearElementSubType;
+export type ConvertibleTypes = ConvertibleGenericTypes | ConvertibleLinearTypes;

packages/element/src/utils.ts

@@ -10,6 +10,8 @@ import {
   type GlobalPoint,
 } from "@excalidraw/math";
 
+import { elementCenterPoint } from "@excalidraw/common";
+
 import type { Curve, LineSegment } from "@excalidraw/math";
 
 import { getCornerRadius } from "./shapes";
@@ -68,10 +70,7 @@ export function deconstructRectanguloidElement(
     return [sides, []];
   }
 
-  const center = pointFrom<GlobalPoint>(
+  const center = elementCenterPoint(element);
-    element.x + element.width / 2,
-    element.y + element.height / 2,
-  );
 
   const r = rectangle(
     pointFrom(element.x, element.y),
@@ -254,10 +253,7 @@ export function deconstructDiamondElement(
     return [[topRight, bottomRight, bottomLeft, topLeft], []];
   }
 
-  const center = pointFrom<GlobalPoint>(
+  const center = elementCenterPoint(element);
-    element.x + element.width / 2,
-    element.y + element.height / 2,
-  );
 
   const [top, right, bottom, left]: GlobalPoint[] = [
     pointFrom(element.x + topX, element.y + topY),

packages/element/src/zindex.ts

@@ -2,8 +2,6 @@ import { arrayToMap, findIndex, findLastIndex } from "@excalidraw/common";
 
 import type { AppState } from "@excalidraw/excalidraw/types";
 
-import type Scene from "@excalidraw/excalidraw/scene/Scene";
-
 import { isFrameLikeElement } from "./typeChecks";
 
 import { getElementsInGroup } from "./groups";
@@ -12,6 +10,8 @@ import { syncMovedIndices } from "./fractionalIndex";
 
 import { getSelectedElements } from "./selection";
 
+import type { Scene } from "./Scene";
+
 import type { ExcalidrawElement, ExcalidrawFrameLikeElement } from "./types";
 
 const isOfTargetFrame = (element: ExcalidrawElement, frameId: string) => {

packages/element/tests/binding.test.tsx

@@ -10,8 +10,6 @@ import { API } from "@excalidraw/excalidraw/tests/helpers/api";
 import { UI, Pointer, Keyboard } from "@excalidraw/excalidraw/tests/helpers/ui";
 import { fireEvent, render } from "@excalidraw/excalidraw/tests/test-utils";
 
-import "@excalidraw/utils/test-utils";
-
 import { getTransformHandles } from "../src/transformHandles";
 
 const { h } = window;
@@ -20,9 +18,7 @@ const mouse = new Pointer("mouse");
 
 describe("element binding", () => {
   beforeEach(async () => {
-    localStorage.clear();
     await render(<Excalidraw handleKeyboardGlobally={true} />);
-    mouse.reset();
   });
 
   it("should create valid binding if duplicate start/end points", async () => {
@@ -93,55 +89,46 @@ describe("element binding", () => {
     });
   });
 
-  // UX RATIONALE: We are not aware of any use-case where the user would want to
+  //@TODO fix the test with rotation
-  // have the arrow rebind after rotation but not when the arrow shaft is
+  it.skip("rotation of arrow should rebind both ends", () => {
-  // dragged so either the start or the end point is in the binding range of a
+    const rectLeft = UI.createElement("rectangle", {
-  // bindable element. So to remain consistent, we only "rebind" if at the end
+      x: 0,
-  // of the rotation the original binding would remain the same (i.e. like we
+      width: 200,
-  // would've evaluated binding only at the end of the operation).
+      height: 500,
-  it(
+    });
-    "rotation of arrow should not rebind on both ends if rotated enough to" +
+    const rectRight = UI.createElement("rectangle", {
-      " not be in the binding range of the original elements",
+      x: 400,
-    () => {
+      width: 200,
-      const rectLeft = UI.createElement("rectangle", {
+      height: 500,
-        x: 0,
+    });
-        width: 200,
+    const arrow = UI.createElement("arrow", {
-        height: 500,
+      x: 210,
-      });
+      y: 250,
-      const rectRight = UI.createElement("rectangle", {
+      width: 180,
-        x: 400,
+      height: 1,
-        width: 200,
+    });
-        height: 500,
+    expect(arrow.startBinding?.elementId).toBe(rectLeft.id);
-      });
+    expect(arrow.endBinding?.elementId).toBe(rectRight.id);
-      const arrow = UI.createElement("arrow", {
-        x: 210,
-        y: 250,
-        width: 180,
-        height: 1,
-      });
-      expect(arrow.startBinding?.elementId).toBe(rectLeft.id);
-      expect(arrow.endBinding?.elementId).toBe(rectRight.id);
 
-      const rotation = getTransformHandles(
+    const rotation = getTransformHandles(
-        arrow,
+      arrow,
-        h.state.zoom,
+      h.state.zoom,
-        arrayToMap(h.elements),
+      arrayToMap(h.elements),
-        "mouse",
+      "mouse",
-      ).rotation!;
+    ).rotation!;
-      const rotationHandleX = rotation[0] + rotation[2] / 2;
+    const rotationHandleX = rotation[0] + rotation[2] / 2;
-      const rotationHandleY = rotation[1] + rotation[3] / 2;
+    const rotationHandleY = rotation[1] + rotation[3] / 2;
-      mouse.down(rotationHandleX, rotationHandleY);
+    mouse.down(rotationHandleX, rotationHandleY);
-      mouse.move(300, 400);
+    mouse.move(300, 400);
-      mouse.up();
+    mouse.up();
-      expect(arrow.angle).toBeGreaterThan(0.7 * Math.PI);
+    expect(arrow.angle).toBeGreaterThan(0.7 * Math.PI);
-      expect(arrow.angle).toBeLessThan(1.3 * Math.PI);
+    expect(arrow.angle).toBeLessThan(1.3 * Math.PI);
-      expect(arrow.startBinding).toBe(null);
+    expect(arrow.startBinding?.elementId).toBe(rectRight.id);
-      expect(arrow.endBinding).toBe(null);
+    expect(arrow.endBinding?.elementId).toBe(rectLeft.id);
-    },
+  });
-  );
 
   // TODO fix & reenable once we rewrite tests to work with concurrency
-  it(
+  it.skip(
     "editing arrow and moving its head to bind it to element A, finalizing the" +
       "editing by clicking on element A should end up selecting A",
     async () => {
@@ -155,10 +142,7 @@ describe("element binding", () => {
       mouse.up(0, 80);
 
       // Edit arrow with multi-point
-      Keyboard.withModifierKeys({ ctrl: true }, () => {
+      mouse.doubleClick();
-        mouse.doubleClick();
-      });
-
       // move arrow head
       mouse.down();
       mouse.up(0, 10);
@@ -168,12 +152,16 @@ describe("element binding", () => {
       // the issue, due to https://github.com/excalidraw/excalidraw/blob/46bff3daceb602accf60c40a84610797260fca94/src/components/App.tsx#L740
       mouse.reset();
       expect(h.state.editingLinearElement).not.toBe(null);
-      mouse.click();
+      mouse.down(0, 0);
+      await new Promise((r) => setTimeout(r, 100));
+      expect(h.state.editingLinearElement).toBe(null);
+      expect(API.getSelectedElement().type).toBe("rectangle");
+      mouse.up();
       expect(API.getSelectedElement().type).toBe("rectangle");
     },
   );
 
-  it("should not move bound arrows when moving it with keyboard", () => {
+  it("should unbind arrow when moving it with keyboard", () => {
     const rectangle = UI.createElement("rectangle", {
       x: 75,
       y: 0,
@@ -199,19 +187,13 @@ describe("element binding", () => {
     expect(arrow.endBinding?.elementId).toBe(rectangle.id);
     Keyboard.keyPress(KEYS.ARROW_LEFT);
     expect(arrow.endBinding?.elementId).toBe(rectangle.id);
-    expect(API.getSelectedElement().type).toBe("arrow");
 
     // Sever connection
-    Keyboard.withModifierKeys({ shift: true }, () => {
+    expect(API.getSelectedElement().type).toBe("arrow");
-      // We have to move a significant distance to get out of the binding zone
+    Keyboard.keyPress(KEYS.ARROW_LEFT);
-      Array.from({ length: 10 }).forEach(() => {
+    expect(arrow.endBinding).toBe(null);
-        Keyboard.keyPress(KEYS.ARROW_LEFT);
+    Keyboard.keyPress(KEYS.ARROW_RIGHT);
-      });
+    expect(arrow.endBinding).toBe(null);
-    });
-
-    expect(arrow.endBinding?.elementId).toBe(rectangle.id);
-    expect(arrow.x).toBe(0);
-    expect(arrow.y).toBe(0);
   });
 
   it("should unbind on bound element deletion", () => {
@@ -499,86 +481,4 @@ describe("element binding", () => {
       });
     });
   });
-
-  // UX RATIONALE: The arrow might be outside of the shape at high zoom and you
-  // won't see what's going on.
-  it(
-    "allow non-binding simple (complex) arrow creation while start and end" +
-      " points are in the same shape",
-    () => {
-      const rect = UI.createElement("rectangle", {
-        x: 0,
-        y: 0,
-        width: 100,
-        height: 100,
-      });
-
-      const arrow = UI.createElement("arrow", {
-        x: 5,
-        y: 5,
-        height: 95,
-        width: 95,
-      });
-
-      expect(arrow.startBinding).toBe(null);
-      expect(arrow.endBinding).toBe(null);
-      expect(rect.boundElements).toEqual(null);
-      expect(arrow.points).toCloselyEqualPoints([
-        [0, 0],
-        [92.2855, 92.2855],
-      ]);
-
-      const rect2 = API.createElement({
-        type: "rectangle",
-        x: 300,
-        y: 300,
-        width: 100,
-        height: 100,
-        backgroundColor: "red",
-        fillStyle: "solid",
-      });
-
-      API.setElements([rect2]);
-
-      const arrow2 = UI.createElement("arrow", {
-        x: 305,
-        y: 305,
-        height: 95,
-        width: 95,
-      });
-
-      expect(arrow2.startBinding).toBe(null);
-      expect(arrow2.endBinding).toBe(null);
-      expect(rect2.boundElements).toEqual(null);
-      expect(arrow2.points).toCloselyEqualPoints([
-        [0, 0],
-        [92.2855, 92.2855],
-      ]);
-
-      const rect3 = UI.createElement("rectangle", {
-        x: 0,
-        y: 300,
-        width: 100,
-        height: 100,
-      });
-
-      const arrow3 = UI.createElement("arrow", {
-        x: 10,
-        y: 310,
-        height: 85,
-        width: 84,
-        elbowed: true,
-      });
-
-      expect(arrow3.startBinding).toBe(null);
-      expect(arrow3.endBinding).toBe(null);
-      expect(rect3.boundElements).toEqual(null);
-      expect(arrow3.points).toCloselyEqualPoints([
-        [0, 0],
-        [0, 42.5],
-        [84, 42.5],
-        [84, 85],
-      ]);
-    },
-  );
 });

packages/element/tests/cropElement.test.tsx

@@ -3,21 +3,30 @@ import { vi } from "vitest";
 
 import { KEYS, cloneJSON } from "@excalidraw/common";
 
-import { duplicateElement } from "@excalidraw/element/duplicate";
+import {
+  Excalidraw,
+  exportToCanvas,
+  exportToSvg,
+} from "@excalidraw/excalidraw";
+import {
+  actionFlipHorizontal,
+  actionFlipVertical,
+} from "@excalidraw/excalidraw/actions";
 
-import type {
+import { API } from "@excalidraw/excalidraw/tests/helpers/api";
-  ExcalidrawImageElement,
+import { Keyboard, Pointer, UI } from "@excalidraw/excalidraw/tests/helpers/ui";
-  ImageCrop,
+import {
-} from "@excalidraw/element/types";
+  act,
+  GlobalTestState,
+  render,
+  unmountComponent,
+} from "@excalidraw/excalidraw/tests/test-utils";
 
-import { Excalidraw, exportToCanvas, exportToSvg } from "..";
+import type { NormalizedZoomValue } from "@excalidraw/excalidraw/types";
-import { actionFlipHorizontal, actionFlipVertical } from "../actions";
 
-import { API } from "./helpers/api";
+import { duplicateElement } from "../src/duplicate";
-import { Keyboard, Pointer, UI } from "./helpers/ui";
-import { act, GlobalTestState, render, unmountComponent } from "./test-utils";
 
-import type { NormalizedZoomValue } from "../types";
+import type { ExcalidrawImageElement, ImageCrop } from "../src/types";
 
 const { h } = window;
 const mouse = new Pointer("mouse");
@@ -218,7 +227,7 @@ describe("Cropping and other features", async () => {
       initialHeight / 2,
     ]);
     Keyboard.keyDown(KEYS.ESCAPE);
-    const duplicatedImage = duplicateElement(null, new Map(), image, {});
+    const duplicatedImage = duplicateElement(null, new Map(), image);
     act(() => {
       h.app.scene.insertElement(duplicatedImage);
     });

packages/element/tests/delta.test.tsx

@@ -0,0 +1,149 @@
+import type { ObservedAppState } from "@excalidraw/excalidraw/types";
+import type { LinearElementEditor } from "@excalidraw/element";
+
+import { AppStateDelta } from "../src/delta";
+
+describe("AppStateDelta", () => {
+  describe("ensure stable delta properties order", () => {
+    it("should maintain stable order for root properties", () => {
+      const name = "untitled scene";
+      const selectedLinearElementId = "id1" as LinearElementEditor["elementId"];
+
+      const commonAppState = {
+        viewBackgroundColor: "#ffffff",
+        selectedElementIds: {},
+        selectedGroupIds: {},
+        editingGroupId: null,
+        croppingElementId: null,
+        editingLinearElementId: null,
+        lockedMultiSelections: {},
+        activeLockedId: null,
+      };
+
+      const prevAppState1: ObservedAppState = {
+        ...commonAppState,
+        name: "",
+        selectedLinearElementId: null,
+      };
+
+      const nextAppState1: ObservedAppState = {
+        ...commonAppState,
+        name,
+        selectedLinearElementId,
+      };
+
+      const prevAppState2: ObservedAppState = {
+        selectedLinearElementId: null,
+        name: "",
+        ...commonAppState,
+      };
+
+      const nextAppState2: ObservedAppState = {
+        selectedLinearElementId,
+        name,
+        ...commonAppState,
+      };
+
+      const delta1 = AppStateDelta.calculate(prevAppState1, nextAppState1);
+      const delta2 = AppStateDelta.calculate(prevAppState2, nextAppState2);
+
+      expect(JSON.stringify(delta1)).toBe(JSON.stringify(delta2));
+    });
+
+    it("should maintain stable order for selectedElementIds", () => {
+      const commonAppState = {
+        name: "",
+        viewBackgroundColor: "#ffffff",
+        selectedGroupIds: {},
+        editingGroupId: null,
+        croppingElementId: null,
+        selectedLinearElementId: null,
+        editingLinearElementId: null,
+        activeLockedId: null,
+        lockedMultiSelections: {},
+      };
+
+      const prevAppState1: ObservedAppState = {
+        ...commonAppState,
+        selectedElementIds: { id5: true, id2: true, id4: true },
+      };
+
+      const nextAppState1: ObservedAppState = {
+        ...commonAppState,
+        selectedElementIds: {
+          id1: true,
+          id2: true,
+          id3: true,
+        },
+      };
+
+      const prevAppState2: ObservedAppState = {
+        ...commonAppState,
+        selectedElementIds: { id4: true, id2: true, id5: true },
+      };
+
+      const nextAppState2: ObservedAppState = {
+        ...commonAppState,
+        selectedElementIds: {
+          id3: true,
+          id2: true,
+          id1: true,
+        },
+      };
+
+      const delta1 = AppStateDelta.calculate(prevAppState1, nextAppState1);
+      const delta2 = AppStateDelta.calculate(prevAppState2, nextAppState2);
+
+      expect(JSON.stringify(delta1)).toBe(JSON.stringify(delta2));
+    });
+
+    it("should maintain stable order for selectedGroupIds", () => {
+      const commonAppState = {
+        name: "",
+        viewBackgroundColor: "#ffffff",
+        selectedElementIds: {},
+        editingGroupId: null,
+        croppingElementId: null,
+        selectedLinearElementId: null,
+        editingLinearElementId: null,
+        activeLockedId: null,
+        lockedMultiSelections: {},
+      };
+
+      const prevAppState1: ObservedAppState = {
+        ...commonAppState,
+        selectedGroupIds: { id5: false, id2: true, id4: true, id0: true },
+      };
+
+      const nextAppState1: ObservedAppState = {
+        ...commonAppState,
+        selectedGroupIds: {
+          id0: true,
+          id1: true,
+          id2: false,
+          id3: true,
+        },
+      };
+
+      const prevAppState2: ObservedAppState = {
+        ...commonAppState,
+        selectedGroupIds: { id0: true, id4: true, id2: true, id5: false },
+      };
+
+      const nextAppState2: ObservedAppState = {
+        ...commonAppState,
+        selectedGroupIds: {
+          id3: true,
+          id2: false,
+          id1: true,
+          id0: true,
+        },
+      };
+
+      const delta1 = AppStateDelta.calculate(prevAppState1, nextAppState1);
+      const delta2 = AppStateDelta.calculate(prevAppState2, nextAppState2);
+
+      expect(JSON.stringify(delta1)).toBe(JSON.stringify(delta2));
+    });
+  });
+});

packages/element/tests/duplicate.test.tsx

@@ -1,4 +1,3 @@
-import React from "react";
 import { pointFrom } from "@excalidraw/math";
 
 import {
@@ -8,16 +7,13 @@ import {
   isPrimitive,
 } from "@excalidraw/common";
 
-import { Excalidraw } from "@excalidraw/excalidraw";
+import { Excalidraw, mutateElement } from "@excalidraw/excalidraw";
 
-import {
+import { actionDuplicateSelection } from "@excalidraw/excalidraw/actions";
-  actionDuplicateSelection,
-  actionSelectAll,
-} from "@excalidraw/excalidraw/actions";
 
 import { API } from "@excalidraw/excalidraw/tests/helpers/api";
 
-import { Keyboard, Pointer, UI } from "@excalidraw/excalidraw/tests/helpers/ui";
+import { UI, Keyboard, Pointer } from "@excalidraw/excalidraw/tests/helpers/ui";
 
 import {
   act,
@@ -28,13 +24,9 @@ import {
 
 import type { LocalPoint } from "@excalidraw/math";
 
-import { mutateElement } from "../src/mutateElement";
 import { duplicateElement, duplicateElements } from "../src/duplicate";
 
-import type {
+import type { ExcalidrawLinearElement } from "../src/types";
-  ExcalidrawArrowElement,
-  ExcalidrawLinearElement,
-} from "../src/types";
 
 const { h } = window;
 const mouse = new Pointer("mouse");
@@ -69,11 +61,11 @@ describe("duplicating single elements", () => {
     // @ts-ignore
     element.__proto__ = { hello: "world" };
 
-    mutateElement(element, {
+    mutateElement(element, new Map(), {
       points: [pointFrom<LocalPoint>(1, 2), pointFrom<LocalPoint>(3, 4)],
     });
 
-    const copy = duplicateElement(null, new Map(), element, undefined, true);
+    const copy = duplicateElement(null, new Map(), element, true);
 
     assertCloneObjects(element, copy);
 
@@ -179,7 +171,7 @@ describe("duplicating multiple elements", () => {
     // -------------------------------------------------------------------------
 
     const origElements = [rectangle1, text1, arrow1, arrow2, text2] as const;
-    const { newElements: clonedElements } = duplicateElements({
+    const { duplicatedElements } = duplicateElements({
       type: "everything",
       elements: origElements,
     });
@@ -187,10 +179,10 @@ describe("duplicating multiple elements", () => {
     // generic id in-equality checks
     // --------------------------------------------------------------------------
     expect(origElements.map((e) => e.type)).toEqual(
-      clonedElements.map((e) => e.type),
+      duplicatedElements.map((e) => e.type),
     );
     origElements.forEach((origElement, idx) => {
-      const clonedElement = clonedElements[idx];
+      const clonedElement = duplicatedElements[idx];
       expect(origElement).toEqual(
         expect.objectContaining({
           id: expect.not.stringMatching(clonedElement.id),
@@ -223,12 +215,12 @@ describe("duplicating multiple elements", () => {
     });
     // --------------------------------------------------------------------------
 
-    const clonedArrows = clonedElements.filter(
+    const clonedArrows = duplicatedElements.filter(
       (e) => e.type === "arrow",
     ) as ExcalidrawLinearElement[];
 
     const [clonedRectangle, clonedText1, , clonedArrow2, clonedArrowLabel] =
-      clonedElements as any as typeof origElements;
+      duplicatedElements as any as typeof origElements;
 
     expect(clonedText1.containerId).toBe(clonedRectangle.id);
     expect(
@@ -333,10 +325,10 @@ describe("duplicating multiple elements", () => {
     // -------------------------------------------------------------------------
 
     const origElements = [rectangle1, text1, arrow1, arrow2, arrow3] as const;
-    const { newElements: clonedElements } = duplicateElements({
+    const duplicatedElements = duplicateElements({
       type: "everything",
       elements: origElements,
-    }) as any as { newElements: typeof origElements };
+    }).duplicatedElements as any as typeof origElements;
 
     const [
       clonedRectangle,
@@ -344,7 +336,7 @@ describe("duplicating multiple elements", () => {
       clonedArrow1,
       clonedArrow2,
       clonedArrow3,
-    ] = clonedElements;
+    ] = duplicatedElements;
 
     expect(clonedRectangle.boundElements).toEqual([
       { id: clonedArrow1.id, type: "arrow" },
@@ -380,12 +372,12 @@ describe("duplicating multiple elements", () => {
       });
 
       const origElements = [rectangle1, rectangle2, rectangle3] as const;
-      const { newElements: clonedElements } = duplicateElements({
+      const { duplicatedElements } = duplicateElements({
         type: "everything",
         elements: origElements,
-      }) as any as { newElements: typeof origElements };
+      });
       const [clonedRectangle1, clonedRectangle2, clonedRectangle3] =
-        clonedElements;
+        duplicatedElements;
 
       expect(rectangle1.groupIds[0]).not.toBe(clonedRectangle1.groupIds[0]);
       expect(rectangle2.groupIds[0]).not.toBe(clonedRectangle2.groupIds[0]);
@@ -405,7 +397,7 @@ describe("duplicating multiple elements", () => {
       });
 
       const {
-        newElements: [clonedRectangle1],
+        duplicatedElements: [clonedRectangle1],
       } = duplicateElements({ type: "everything", elements: [rectangle1] });
 
       expect(typeof clonedRectangle1.groupIds[0]).toBe("string");
@@ -414,119 +406,114 @@ describe("duplicating multiple elements", () => {
   });
 });
 
-describe("elbow arrow duplication", () => {
+describe("group-related duplication", () => {
   beforeEach(async () => {
     await render(<Excalidraw />);
   });
 
-  it("keeps arrow shape when the whole set of arrow and bindables are duplicated", async () => {
+  it("action-duplicating within group", async () => {
-    UI.createElement("rectangle", {
+    const rectangle1 = API.createElement({
-      x: -150,
+      type: "rectangle",
-      y: -150,
+      x: 0,
-      width: 100,
+      y: 0,
-      height: 100,
+      groupIds: ["group1"],
     });
-    UI.createElement("rectangle", {
+    const rectangle2 = API.createElement({
-      x: 50,
+      type: "rectangle",
-      y: 50,
+      x: 10,
-      width: 100,
+      y: 10,
-      height: 100,
+      groupIds: ["group1"],
     });
 
-    UI.clickTool("arrow");
+    API.setElements([rectangle1, rectangle2]);
-    UI.clickOnTestId("elbow-arrow");
+    API.setSelectedElements([rectangle2], "group1");
-
-    mouse.reset();
-    mouse.moveTo(-43, -99);
-    mouse.click();
-    mouse.moveTo(43, 99);
-    mouse.click();
-
-    const arrow = h.scene.getSelectedElements(
-      h.state,
-    )[0] as ExcalidrawArrowElement;
-    const originalArrowId = arrow.id;
-
-    expect(arrow.startBinding).not.toBe(null);
-    expect(arrow.endBinding).not.toBe(null);
-
-    act(() => {
-      h.app.actionManager.executeAction(actionSelectAll);
-    });
 
     act(() => {
       h.app.actionManager.executeAction(actionDuplicateSelection);
     });
 
-    expect(h.elements.length).toEqual(6);
+    assertElements(h.elements, [
-
+      { id: rectangle1.id },
-    const duplicatedArrow = h.scene.getSelectedElements(
+      { id: rectangle2.id },
-      h.state,
+      { [ORIG_ID]: rectangle2.id, selected: true, groupIds: ["group1"] },
-    )[2] as ExcalidrawArrowElement;
-
-    expect(duplicatedArrow.id).not.toBe(originalArrowId);
-    expect(duplicatedArrow.type).toBe("arrow");
-    expect(duplicatedArrow.elbowed).toBe(true);
-    expect(duplicatedArrow.points).toEqual([
-      [0, 0],
-      [45, 0],
-      [45, 200],
-      [90, 200],
     ]);
-    expect(arrow.startBinding).not.toBe(null);
+    expect(h.state.editingGroupId).toBe("group1");
-    expect(arrow.endBinding).not.toBe(null);
   });
 
-  it("changes arrow shape to unbind variant if only the connected elbow arrow is duplicated", async () => {
+  it("alt-duplicating within group", async () => {
-    UI.createElement("rectangle", {
+    const rectangle1 = API.createElement({
-      x: -150,
+      type: "rectangle",
-      y: -150,
+      x: 0,
-      width: 100,
+      y: 0,
-      height: 100,
+      groupIds: ["group1"],
     });
-    UI.createElement("rectangle", {
+    const rectangle2 = API.createElement({
-      x: 50,
+      type: "rectangle",
-      y: 50,
+      x: 10,
-      width: 100,
+      y: 10,
-      height: 100,
+      groupIds: ["group1"],
     });
 
-    UI.clickTool("arrow");
+    API.setElements([rectangle1, rectangle2]);
-    UI.clickOnTestId("elbow-arrow");
+    API.setSelectedElements([rectangle2], "group1");
 
-    mouse.reset();
+    Keyboard.withModifierKeys({ alt: true }, () => {
-    mouse.moveTo(-43, -99);
+      mouse.down(rectangle2.x + 5, rectangle2.y + 5);
-    mouse.click();
+      mouse.up(rectangle2.x + 50, rectangle2.y + 50);
-    mouse.moveTo(43, 99);
-    mouse.click();
-
-    const arrow = h.scene.getSelectedElements(
-      h.state,
-    )[0] as ExcalidrawArrowElement;
-    const originalArrowId = arrow.id;
-
-    expect(arrow.startBinding).not.toBe(null);
-    expect(arrow.endBinding).not.toBe(null);
-
-    act(() => {
-      h.app.actionManager.executeAction(actionDuplicateSelection);
     });
 
-    expect(h.elements.length).toEqual(4);
+    assertElements(h.elements, [
-
+      { id: rectangle1.id },
-    const duplicatedArrow = h.scene.getSelectedElements(
+      { id: rectangle2.id },
-      h.state,
+      { [ORIG_ID]: rectangle2.id, selected: true, groupIds: ["group1"] },
-    )[0] as ExcalidrawArrowElement;
-
-    expect(duplicatedArrow.id).not.toBe(originalArrowId);
-    expect(duplicatedArrow.type).toBe("arrow");
-    expect(duplicatedArrow.elbowed).toBe(true);
-    expect(duplicatedArrow.points).toEqual([
-      [0, 0],
-      [0, 100],
-      [90, 100],
-      [90, 200],
     ]);
+    expect(h.state.editingGroupId).toBe("group1");
+  });
+
+  it("alt-duplicating within group away outside frame", () => {
+    const frame = API.createElement({
+      type: "frame",
+      x: 0,
+      y: 0,
+      width: 100,
+      height: 100,
+    });
+    const rectangle1 = API.createElement({
+      type: "rectangle",
+      x: 0,
+      y: 0,
+      width: 50,
+      height: 50,
+      groupIds: ["group1"],
+      frameId: frame.id,
+    });
+    const rectangle2 = API.createElement({
+      type: "rectangle",
+      x: 10,
+      y: 10,
+      width: 50,
+      height: 50,
+      groupIds: ["group1"],
+      frameId: frame.id,
+    });
+
+    API.setElements([frame, rectangle1, rectangle2]);
+    API.setSelectedElements([rectangle2], "group1");
+
+    Keyboard.withModifierKeys({ alt: true }, () => {
+      mouse.down(rectangle2.x + 5, rectangle2.y + 5);
+      mouse.up(frame.x + frame.width + 50, frame.y + frame.height + 50);
+    });
+
+    // console.log(h.elements);
+
+    assertElements(h.elements, [
+      { id: frame.id },
+      { id: rectangle1.id, frameId: frame.id },
+      { id: rectangle2.id, frameId: frame.id },
+      { [ORIG_ID]: rectangle2.id, selected: true, groupIds: [], frameId: null },
+    ]);
+    expect(h.state.editingGroupId).toBe(null);
   });
 });
 
@@ -625,8 +612,8 @@ describe("duplication z-order", () => {
     });
 
     assertElements(h.elements, [
-      { [ORIG_ID]: rectangle1.id },
+      { id: rectangle1.id },
-      { id: rectangle1.id, selected: true },
+      { [ORIG_ID]: rectangle1.id, selected: true },
       { id: rectangle2.id },
       { id: rectangle3.id },
     ]);
@@ -660,8 +647,8 @@ describe("duplication z-order", () => {
     assertElements(h.elements, [
       { id: rectangle1.id },
       { id: rectangle2.id },
-      { [ORIG_ID]: rectangle3.id },
+      { id: rectangle3.id },
-      { id: rectangle3.id, selected: true },
+      { [ORIG_ID]: rectangle3.id, selected: true },
     ]);
   });
 
@@ -691,8 +678,8 @@ describe("duplication z-order", () => {
     });
 
     assertElements(h.elements, [
-      { [ORIG_ID]: rectangle1.id },
+      { id: rectangle1.id },
-      { id: rectangle1.id, selected: true },
+      { [ORIG_ID]: rectangle1.id, selected: true },
       { id: rectangle2.id },
       { id: rectangle3.id },
     ]);
@@ -727,19 +714,19 @@ describe("duplication z-order", () => {
     });
 
     assertElements(h.elements, [
-      { [ORIG_ID]: rectangle1.id },
+      { id: rectangle1.id },
-      { [ORIG_ID]: rectangle2.id },
+      { id: rectangle2.id },
-      { [ORIG_ID]: rectangle3.id },
+      { id: rectangle3.id },
-      { id: rectangle1.id, selected: true },
+      { [ORIG_ID]: rectangle1.id, selected: true },
-      { id: rectangle2.id, selected: true },
+      { [ORIG_ID]: rectangle2.id, selected: true },
-      { id: rectangle3.id, selected: true },
+      { [ORIG_ID]: rectangle3.id, selected: true },
     ]);
   });
 
-  it("reverse-duplicating text container (in-order)", async () => {
+  it("alt-duplicating text container (in-order)", async () => {
     const [rectangle, text] = API.createTextContainer();
     API.setElements([rectangle, text]);
-    API.setSelectedElements([rectangle, text]);
+    API.setSelectedElements([rectangle]);
 
     Keyboard.withModifierKeys({ alt: true }, () => {
       mouse.down(rectangle.x + 5, rectangle.y + 5);
@@ -747,20 +734,20 @@ describe("duplication z-order", () => {
     });
 
     assertElements(h.elements, [
-      { [ORIG_ID]: rectangle.id },
+      { id: rectangle.id },
+      { id: text.id, containerId: rectangle.id },
+      { [ORIG_ID]: rectangle.id, selected: true },
       {
         [ORIG_ID]: text.id,
         containerId: getCloneByOrigId(rectangle.id)?.id,
       },
-      { id: rectangle.id, selected: true },
-      { id: text.id, containerId: rectangle.id, selected: true },
     ]);
   });
 
-  it("reverse-duplicating text container (out-of-order)", async () => {
+  it("alt-duplicating text container (out-of-order)", async () => {
     const [rectangle, text] = API.createTextContainer();
     API.setElements([text, rectangle]);
-    API.setSelectedElements([rectangle, text]);
+    API.setSelectedElements([rectangle]);
 
     Keyboard.withModifierKeys({ alt: true }, () => {
       mouse.down(rectangle.x + 5, rectangle.y + 5);
@@ -768,21 +755,21 @@ describe("duplication z-order", () => {
     });
 
     assertElements(h.elements, [
-      { [ORIG_ID]: rectangle.id },
+      { id: rectangle.id },
+      { id: text.id, containerId: rectangle.id },
+      { [ORIG_ID]: rectangle.id, selected: true },
       {
         [ORIG_ID]: text.id,
         containerId: getCloneByOrigId(rectangle.id)?.id,
       },
-      { id: rectangle.id, selected: true },
-      { id: text.id, containerId: rectangle.id, selected: true },
     ]);
   });
 
-  it("reverse-duplicating labeled arrows (in-order)", async () => {
+  it("alt-duplicating labeled arrows (in-order)", async () => {
     const [arrow, text] = API.createLabeledArrow();
 
     API.setElements([arrow, text]);
-    API.setSelectedElements([arrow, text]);
+    API.setSelectedElements([arrow]);
 
     Keyboard.withModifierKeys({ alt: true }, () => {
       mouse.down(arrow.x + 5, arrow.y + 5);
@@ -790,21 +777,24 @@ describe("duplication z-order", () => {
     });
 
     assertElements(h.elements, [
-      { [ORIG_ID]: arrow.id },
+      { id: arrow.id },
+      { id: text.id, containerId: arrow.id },
+      { [ORIG_ID]: arrow.id, selected: true },
       {
         [ORIG_ID]: text.id,
         containerId: getCloneByOrigId(arrow.id)?.id,
       },
-      { id: arrow.id, selected: true },
-      { id: text.id, containerId: arrow.id, selected: true },
     ]);
+    expect(h.state.selectedLinearElement).toEqual(
+      expect.objectContaining({ elementId: getCloneByOrigId(arrow.id)?.id }),
+    );
   });
 
-  it("reverse-duplicating labeled arrows (out-of-order)", async () => {
+  it("alt-duplicating labeled arrows (out-of-order)", async () => {
     const [arrow, text] = API.createLabeledArrow();
 
     API.setElements([text, arrow]);
-    API.setSelectedElements([arrow, text]);
+    API.setSelectedElements([arrow]);
 
     Keyboard.withModifierKeys({ alt: true }, () => {
       mouse.down(arrow.x + 5, arrow.y + 5);
@@ -812,17 +802,17 @@ describe("duplication z-order", () => {
     });
 
     assertElements(h.elements, [
-      { [ORIG_ID]: arrow.id },
+      { id: arrow.id },
+      { id: text.id, containerId: arrow.id },
+      { [ORIG_ID]: arrow.id, selected: true },
       {
         [ORIG_ID]: text.id,
         containerId: getCloneByOrigId(arrow.id)?.id,
       },
-      { id: arrow.id, selected: true },
-      { id: text.id, containerId: arrow.id, selected: true },
     ]);
   });
 
-  it("reverse-duplicating bindable element with bound arrow should keep the arrow on the duplicate", () => {
+  it("alt-duplicating bindable element with bound arrow should keep the arrow on the duplicate", async () => {
     const rect = UI.createElement("rectangle", {
       x: 0,
       y: 0,
@@ -844,11 +834,18 @@ describe("duplication z-order", () => {
       mouse.up(15, 15);
     });
 
-    expect(window.h.elements).toHaveLength(3);
+    assertElements(h.elements, [
-
+      {
-    const newRect = window.h.elements[0];
+        id: rect.id,
-
+        boundElements: expect.arrayContaining([
-    expect(arrow.endBinding?.elementId).toBe(newRect.id);
+          expect.objectContaining({ id: arrow.id }),
-    expect(newRect.boundElements?.[0]?.id).toBe(arrow.id);
+        ]),
+      },
+      { [ORIG_ID]: rect.id, boundElements: [], selected: true },
+      {
+        id: arrow.id,
+        endBinding: expect.objectContaining({ elementId: rect.id }),
+      },
+    ]);
   });
 });

packages/element/tests/elbowArrow.test.tsx

@@ -1,13 +1,15 @@
 import { ARROW_TYPE } from "@excalidraw/common";
 import { pointFrom } from "@excalidraw/math";
-import { Excalidraw, mutateElement } from "@excalidraw/excalidraw";
+import { Excalidraw } from "@excalidraw/excalidraw";
 
-import Scene from "@excalidraw/excalidraw/scene/Scene";
+import { actionSelectAll } from "@excalidraw/excalidraw/actions";
+import { actionDuplicateSelection } from "@excalidraw/excalidraw/actions/actionDuplicateSelection";
 
 import { API } from "@excalidraw/excalidraw/tests/helpers/api";
 import { Pointer, UI } from "@excalidraw/excalidraw/tests/helpers/ui";
 
 import {
+  act,
   fireEvent,
   GlobalTestState,
   queryByTestId,
@@ -20,6 +22,8 @@ import type { LocalPoint } from "@excalidraw/math";
 
 import { bindLinearElement } from "../src/binding";
 
+import { Scene } from "../src/Scene";
+
 import type {
   ExcalidrawArrowElement,
   ExcalidrawBindableElement,
@@ -139,7 +143,7 @@ describe("elbow arrow routing", () => {
       elbowed: true,
     }) as ExcalidrawElbowArrowElement;
     scene.insertElement(arrow);
-    mutateElement(arrow, {
+    h.app.scene.mutateElement(arrow, {
       points: [
         pointFrom<LocalPoint>(-45 - arrow.x, -100.1 - arrow.y),
         pointFrom<LocalPoint>(45 - arrow.x, 99.9 - arrow.y),
@@ -184,14 +188,14 @@ describe("elbow arrow routing", () => {
     scene.insertElement(rectangle1);
     scene.insertElement(rectangle2);
     scene.insertElement(arrow);
-    const elementsMap = scene.getNonDeletedElementsMap();
+
-    bindLinearElement(arrow, rectangle1, "start", elementsMap);
+    bindLinearElement(arrow, rectangle1, "start", scene);
-    bindLinearElement(arrow, rectangle2, "end", elementsMap);
+    bindLinearElement(arrow, rectangle2, "end", scene);
 
     expect(arrow.startBinding).not.toBe(null);
     expect(arrow.endBinding).not.toBe(null);
 
-    mutateElement(arrow, {
+    h.app.scene.mutateElement(arrow, {
       points: [pointFrom<LocalPoint>(0, 0), pointFrom<LocalPoint>(90, 200)],
     });
 
@@ -298,4 +302,114 @@ describe("elbow arrow ui", () => {
       [103, 165],
     ]);
   });
+
+  it("keeps arrow shape when the whole set of arrow and bindables are duplicated", async () => {
+    UI.createElement("rectangle", {
+      x: -150,
+      y: -150,
+      width: 100,
+      height: 100,
+    });
+    UI.createElement("rectangle", {
+      x: 50,
+      y: 50,
+      width: 100,
+      height: 100,
+    });
+
+    UI.clickTool("arrow");
+    UI.clickOnTestId("elbow-arrow");
+
+    mouse.reset();
+    mouse.moveTo(-43, -99);
+    mouse.click();
+    mouse.moveTo(43, 99);
+    mouse.click();
+
+    const arrow = h.scene.getSelectedElements(
+      h.state,
+    )[0] as ExcalidrawArrowElement;
+    const originalArrowId = arrow.id;
+
+    expect(arrow.startBinding).not.toBe(null);
+    expect(arrow.endBinding).not.toBe(null);
+
+    act(() => {
+      h.app.actionManager.executeAction(actionSelectAll);
+    });
+
+    act(() => {
+      h.app.actionManager.executeAction(actionDuplicateSelection);
+    });
+
+    expect(h.elements.length).toEqual(6);
+
+    const duplicatedArrow = h.scene.getSelectedElements(
+      h.state,
+    )[2] as ExcalidrawArrowElement;
+
+    expect(duplicatedArrow.id).not.toBe(originalArrowId);
+    expect(duplicatedArrow.type).toBe("arrow");
+    expect(duplicatedArrow.elbowed).toBe(true);
+    expect(duplicatedArrow.points).toEqual([
+      [0, 0],
+      [45, 0],
+      [45, 200],
+      [90, 200],
+    ]);
+    expect(arrow.startBinding).not.toBe(null);
+    expect(arrow.endBinding).not.toBe(null);
+  });
+
+  it("changes arrow shape to unbind variant if only the connected elbow arrow is duplicated", async () => {
+    UI.createElement("rectangle", {
+      x: -150,
+      y: -150,
+      width: 100,
+      height: 100,
+    });
+    UI.createElement("rectangle", {
+      x: 50,
+      y: 50,
+      width: 100,
+      height: 100,
+    });
+
+    UI.clickTool("arrow");
+    UI.clickOnTestId("elbow-arrow");
+
+    mouse.reset();
+    mouse.moveTo(-43, -99);
+    mouse.click();
+    mouse.moveTo(43, 99);
+    mouse.click();
+
+    const arrow = h.scene.getSelectedElements(
+      h.state,
+    )[0] as ExcalidrawArrowElement;
+    const originalArrowId = arrow.id;
+
+    expect(arrow.startBinding).not.toBe(null);
+    expect(arrow.endBinding).not.toBe(null);
+
+    act(() => {
+      h.app.actionManager.executeAction(actionDuplicateSelection);
+    });
+
+    expect(h.elements.length).toEqual(4);
+
+    const duplicatedArrow = h.scene.getSelectedElements(
+      h.state,
+    )[0] as ExcalidrawArrowElement;
+
+    expect(duplicatedArrow.id).not.toBe(originalArrowId);
+    expect(duplicatedArrow.type).toBe("arrow");
+    expect(duplicatedArrow.elbowed).toBe(true);
+    expect(duplicatedArrow.points).toEqual([
+      [0, 0],
+      [0, 100],
+      [90, 100],
+      [90, 200],
+    ]);
+  });
 });

packages/element/tests/fractionalIndex.test.ts

@@ -7,13 +7,14 @@ import {
   syncInvalidIndices,
   syncMovedIndices,
   validateFractionalIndices,
-} from "@excalidraw/element/fractionalIndex";
+} from "@excalidraw/element";
 
-import { deepCopyElement } from "@excalidraw/element/duplicate";
+import { deepCopyElement } from "@excalidraw/element";
 
 import { API } from "@excalidraw/excalidraw/tests/helpers/api";
 
 import type {
+  ElementsMap,
   ExcalidrawElement,
   FractionalIndex,
 } from "@excalidraw/element/types";
@@ -749,7 +750,7 @@ function testInvalidIndicesSync(args: {
 function prepareArguments(
   elementsLike: { id: string; index?: string }[],
   movedElementsIds?: string[],
-): [ExcalidrawElement[], Map<string, ExcalidrawElement> | undefined] {
+): [ExcalidrawElement[], ElementsMap | undefined] {
   const elements = elementsLike.map((x) =>
     API.createElement({ id: x.id, index: x.index as FractionalIndex }),
   );
@@ -764,7 +765,7 @@ function prepareArguments(
 function test(
   name: string,
   elements: ExcalidrawElement[],
-  movedElements: Map<string, ExcalidrawElement> | undefined,
+  movedElements: ElementsMap | undefined,
   expectUnchangedElements: Map<string, { id: string }>,
   expectValidInput?: boolean,
 ) {

packages/element/tests/linearElementEditor.test.tsx

@@ -1,5 +1,3 @@
-import { newArrowElement } from "@excalidraw/element/newElement";
-
 import { pointCenter, pointFrom } from "@excalidraw/math";
 import { act, queryByTestId, queryByText } from "@testing-library/react";
 import React from "react";
@@ -13,36 +11,34 @@ import {
   arrayToMap,
 } from "@excalidraw/common";
 
-import { LinearElementEditor } from "@excalidraw/element/linearElementEditor";
+import { Excalidraw } from "@excalidraw/excalidraw";
-import {
+import * as InteractiveCanvas from "@excalidraw/excalidraw/renderer/interactiveScene";
-  getBoundTextElementPosition,
+import * as StaticScene from "@excalidraw/excalidraw/renderer/staticScene";
-  getBoundTextMaxWidth,
+import { API } from "@excalidraw/excalidraw/tests/helpers/api";
-} from "@excalidraw/element/textElement";
-import * as textElementUtils from "@excalidraw/element/textElement";
-import { wrapText } from "@excalidraw/element/textWrapping";
 
-import type { GlobalPoint, LocalPoint } from "@excalidraw/math";
+import { Keyboard, Pointer, UI } from "@excalidraw/excalidraw/tests/helpers/ui";
-
-import type {
-  ExcalidrawElement,
-  ExcalidrawLinearElement,
-  ExcalidrawTextElementWithContainer,
-  FontString,
-} from "@excalidraw/element/types";
-
-import { Excalidraw, mutateElement } from "../index";
-import * as InteractiveCanvas from "../renderer/interactiveScene";
-import * as StaticScene from "../renderer/staticScene";
-import { API } from "../tests/helpers/api";
-
-import { Keyboard, Pointer, UI } from "./helpers/ui";
 import {
   screen,
   render,
   fireEvent,
   GlobalTestState,
   unmountComponent,
-} from "./test-utils";
+} from "@excalidraw/excalidraw/tests/test-utils";
+
+import type { GlobalPoint, LocalPoint } from "@excalidraw/math";
+
+import { wrapText } from "../src";
+import * as textElementUtils from "../src/textElement";
+import { getBoundTextElementPosition, getBoundTextMaxWidth } from "../src";
+import { LinearElementEditor } from "../src";
+import { newArrowElement } from "../src";
+
+import type {
+  ExcalidrawElement,
+  ExcalidrawLinearElement,
+  ExcalidrawTextElementWithContainer,
+  FontString,
+} from "../src/types";
 
 const renderInteractiveScene = vi.spyOn(
   InteractiveCanvas,
@@ -118,7 +114,7 @@ describe("Test Linear Elements", () => {
       ],
       roundness,
     });
-    mutateElement(line, { points: line.points });
+    h.app.scene.mutateElement(line, { points: line.points });
     API.setElements([line]);
     mouse.clickAt(p1[0], p1[1]);
     return line;
@@ -177,7 +173,7 @@ describe("Test Linear Elements", () => {
       pointFrom<LocalPoint>(0.5, 0),
       pointFrom<LocalPoint>(100, 100),
     ]);
-    new LinearElementEditor(element);
+    new LinearElementEditor(element, arrayToMap(h.elements));
     expect(element.points).toEqual([
       pointFrom<LocalPoint>(0, 0),
       pointFrom<LocalPoint>(99.5, 100),
@@ -1247,7 +1243,7 @@ describe("Test Linear Elements", () => {
       const textElement = h.elements[2] as ExcalidrawTextElementWithContainer;
 
       expect(arrow.endBinding?.elementId).toBe(rect.id);
-      expect(arrow.width).toBeCloseTo(408, 0);
+      expect(arrow.width).toBe(400);
       expect(rect.x).toBe(400);
       expect(rect.y).toBe(0);
       expect(
@@ -1266,12 +1262,12 @@ describe("Test Linear Elements", () => {
       mouse.downAt(rect.x, rect.y);
       mouse.moveTo(200, 0);
       mouse.upAt(200, 0);
-      expect(arrow.width).toBeCloseTo(207, 0);
+      expect(arrow.width).toBeCloseTo(204, 0);
       expect(rect.x).toBe(200);
       expect(rect.y).toBe(0);
       expect(handleBindTextResizeSpy).toHaveBeenCalledWith(
         h.elements[0],
-        arrayToMap(h.elements),
+        h.app.scene,
         "nw",
         false,
       );
@@ -1384,19 +1380,30 @@ describe("Test Linear Elements", () => {
       const [origStartX, origStartY] = [line.x, line.y];
 
       act(() => {
-        LinearElementEditor.movePoints(line, [
+        LinearElementEditor.movePoints(
-          {
+          line,
-            index: 0,
+          h.app.scene,
-            point: pointFrom(line.points[0][0] + 10, line.points[0][1] + 10),
+          new Map([
-          },
+            [
-          {
+              0,
-            index: line.points.length - 1,
+              {
-            point: pointFrom(
+                point: pointFrom(
-              line.points[line.points.length - 1][0] - 10,
+                  line.points[0][0] + 10,
-              line.points[line.points.length - 1][1] - 10,
+                  line.points[0][1] + 10,
-            ),
+                ),
-          },
+              },
-        ]);
+            ],
+            [
+              line.points.length - 1,
+              {
+                point: pointFrom(
+                  line.points[line.points.length - 1][0] - 10,
+                  line.points[line.points.length - 1][1] - 10,
+                ),
+              },
+            ],
+          ]),
+        );
       });
       expect(line.x).toBe(origStartX + 10);
       expect(line.y).toBe(origStartY + 10);

packages/element/tests/resize.test.tsx

@@ -15,8 +15,6 @@ import {
   unmountComponent,
 } from "@excalidraw/excalidraw/tests/test-utils";
 
-import { FIXED_BINDING_DISTANCE } from "@excalidraw/element/binding";
-
 import type { LocalPoint } from "@excalidraw/math";
 
 import { isLinearElement } from "../src/typeChecks";
@@ -197,7 +195,7 @@ describe("generic element", () => {
     UI.resize(rectangle, "w", [50, 0]);
 
     expect(arrow.endBinding?.elementId).toEqual(rectangle.id);
-    expect(arrow.width + arrow.endBinding!.gap).toBeCloseTo(81, 0);
+    expect(arrow.width + arrow.endBinding!.gap).toBeCloseTo(80, 0);
   });
 
   it("resizes with a label", async () => {
@@ -335,7 +333,7 @@ describe("line element", () => {
       element,
       element,
       h.app.scene.getNonDeletedElementsMap(),
-      h.app.scene.getNonDeletedElementsMap(),
+      h.app.scene,
       "ne",
     );
 
@@ -371,7 +369,7 @@ describe("line element", () => {
       element,
       element,
       h.app.scene.getNonDeletedElementsMap(),
-      h.app.scene.getNonDeletedElementsMap(),
+      h.app.scene,
       "se",
     );
 
@@ -426,7 +424,7 @@ describe("line element", () => {
       element,
       element,
       h.app.scene.getNonDeletedElementsMap(),
-      h.app.scene.getNonDeletedElementsMap(),
+      h.app.scene,
       "e",
       {
         shouldResizeFromCenter: true,
@@ -828,9 +826,8 @@ describe("image element", () => {
     UI.resize(image, "nw", [50, 20]);
 
     expect(arrow.endBinding?.elementId).toEqual(image.id);
-
+    expect(Math.floor(arrow.width + arrow.endBinding!.gap)).toBeCloseTo(
-    expect(arrow.width + arrow.endBinding!.gap).toBeCloseTo(
+      30 + imageWidth * scale,
-      30 + imageWidth * scale + 1,
       0,
     );
   });
@@ -1006,14 +1003,14 @@ describe("multiple selection", () => {
       size: 100,
     });
     const leftBoundArrow = UI.createElement("arrow", {
-      x: -100 - FIXED_BINDING_DISTANCE,
+      x: -110,
       y: 50,
       width: 100,
       height: 0,
     });
 
     const rightBoundArrow = UI.createElement("arrow", {
-      x: 200 + FIXED_BINDING_DISTANCE,
+      x: 210,
       y: 50,
       width: -100,
       height: 0,
@@ -1034,29 +1031,27 @@ describe("multiple selection", () => {
       shift: true,
     });
 
-    expect(leftBoundArrow.x).toBeCloseTo(-100 - FIXED_BINDING_DISTANCE);
+    expect(leftBoundArrow.x).toBeCloseTo(-110);
     expect(leftBoundArrow.y).toBeCloseTo(50);
-    expect(leftBoundArrow.width).toBeCloseTo(146 - FIXED_BINDING_DISTANCE, 0);
+    expect(leftBoundArrow.width).toBeCloseTo(143, 0);
     expect(leftBoundArrow.height).toBeCloseTo(7, 0);
     expect(leftBoundArrow.angle).toEqual(0);
     expect(leftBoundArrow.startBinding).toBeNull();
-    expect(leftBoundArrow.endBinding?.gap).toBeCloseTo(5);
+    expect(leftBoundArrow.endBinding?.gap).toBeCloseTo(10);
     expect(leftBoundArrow.endBinding?.elementId).toBe(
       leftArrowBinding.elementId,
     );
     expect(leftBoundArrow.endBinding?.focus).toBe(leftArrowBinding.focus);
 
-    expect(rightBoundArrow.x).toBeCloseTo(210 - FIXED_BINDING_DISTANCE);
+    expect(rightBoundArrow.x).toBeCloseTo(210);
     expect(rightBoundArrow.y).toBeCloseTo(
       (selectionHeight - 50) * (1 - scale) + 50,
-      0,
     );
-    //console.log(JSON.stringify(h.elements));
+    expect(rightBoundArrow.width).toBeCloseTo(100 * scale);
-    expect(rightBoundArrow.width).toBeCloseTo(100 * scale, 0);
     expect(rightBoundArrow.height).toBeCloseTo(0);
     expect(rightBoundArrow.angle).toEqual(0);
     expect(rightBoundArrow.startBinding).toBeNull();
-    expect(rightBoundArrow.endBinding?.gap).toBeCloseTo(FIXED_BINDING_DISTANCE);
+    expect(rightBoundArrow.endBinding?.gap).toBeCloseTo(8.0952);
     expect(rightBoundArrow.endBinding?.elementId).toBe(
       rightArrowBinding.elementId,
     );
@@ -1343,8 +1338,8 @@ describe("multiple selection", () => {
 
     expect(boundArrow.x).toBeCloseTo(380 * scaleX);
     expect(boundArrow.y).toBeCloseTo(240 * scaleY);
-    expect(boundArrow.points[1][0]).toBeCloseTo(-60 * scaleX - 2, 0);
+    expect(boundArrow.points[1][0]).toBeCloseTo(-60 * scaleX);
-    expect(boundArrow.points[1][1]).toBeCloseTo(-80 * scaleY + 2, 0);
+    expect(boundArrow.points[1][1]).toBeCloseTo(-80 * scaleY);
 
     expect(arrowLabelPos.x + arrowLabel.width / 2).toBeCloseTo(
       boundArrow.x + boundArrow.points[1][0] / 2,

packages/element/tests/sortElements.test.ts

@@ -1,10 +1,12 @@
 import { API } from "@excalidraw/excalidraw/tests/helpers/api";
 
-import { mutateElement } from "../src/mutateElement";
+import { mutateElement } from "@excalidraw/element";
+
 import { normalizeElementOrder } from "../src/sortElements";
 
 import type { ExcalidrawElement } from "../src/types";
 
+const { h } = window;
 const assertOrder = (
   elements: readonly ExcalidrawElement[],
   expectedOrder: string[],
@@ -35,7 +37,7 @@ describe("normalizeElementsOrder", () => {
       boundElements: [],
     });
 
-    mutateElement(container, {
+    mutateElement(container, new Map(), {
       boundElements: [{ type: "text", id: boundText.id }],
     });
 
@@ -352,7 +354,7 @@ describe("normalizeElementsOrder", () => {
       containerId: container.id,
     });
 
-    mutateElement(container, {
+    h.app.scene.mutateElement(container, {
       boundElements: [
         { type: "text", id: boundText.id },
         { type: "text", id: "xxx" },
@@ -387,7 +389,7 @@ describe("normalizeElementsOrder", () => {
           boundElements: [],
           groupIds: ["C", "A"],
         });
-        mutateElement(container, {
+        h.app.scene.mutateElement(container, {
           boundElements: [{ type: "text", id: boundText.id }],
         });
 

packages/excalidraw/actions/actionAddToLibrary.ts

@@ -1,8 +1,9 @@
 import { LIBRARY_DISABLED_TYPES, randomId } from "@excalidraw/common";
-import { deepCopyElement } from "@excalidraw/element/duplicate";
+import { deepCopyElement } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import { t } from "../i18n";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 

packages/excalidraw/actions/actionAlign.tsx

@@ -1,16 +1,18 @@
 import { getNonDeletedElements } from "@excalidraw/element";
 
-import { isFrameLikeElement } from "@excalidraw/element/typeChecks";
+import { isFrameLikeElement } from "@excalidraw/element";
 
-import { updateFrameMembershipOfSelectedElements } from "@excalidraw/element/frame";
+import { updateFrameMembershipOfSelectedElements } from "@excalidraw/element";
 
 import { KEYS, arrayToMap, getShortcutKey } from "@excalidraw/common";
 
-import { alignElements } from "@excalidraw/element/align";
+import { alignElements } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type { ExcalidrawElement } from "@excalidraw/element/types";
 
-import type { Alignment } from "@excalidraw/element/align";
+import type { Alignment } from "@excalidraw/element";
 
 import { ToolButton } from "../components/ToolButton";
 import {
@@ -25,7 +27,6 @@ import {
 import { t } from "../i18n";
 
 import { isSomeElementSelected } from "../scene";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 
@@ -50,14 +51,8 @@ const alignSelectedElements = (
   alignment: Alignment,
 ) => {
   const selectedElements = app.scene.getSelectedElements(appState);
-  const elementsMap = arrayToMap(elements);
 
-  const updatedElements = alignElements(
+  const updatedElements = alignElements(selectedElements, alignment, app.scene);
-    selectedElements,
-    elementsMap,
-    alignment,
-    app.scene,
-  );
 
   const updatedElementsMap = arrayToMap(updatedElements);
 

packages/excalidraw/actions/actionBoundText.tsx

@@ -10,28 +10,30 @@ import {
   getOriginalContainerHeightFromCache,
   resetOriginalContainerCache,
   updateOriginalContainerCache,
-} from "@excalidraw/element/containerCache";
+} from "@excalidraw/element";
 
 import {
   computeBoundTextPosition,
   computeContainerDimensionForBoundText,
   getBoundTextElement,
   redrawTextBoundingBox,
-} from "@excalidraw/element/textElement";
+} from "@excalidraw/element";
 
 import {
   hasBoundTextElement,
+  isArrowElement,
   isTextBindableContainer,
   isTextElement,
   isUsingAdaptiveRadius,
-} from "@excalidraw/element/typeChecks";
+} from "@excalidraw/element";
 
-import { mutateElement } from "@excalidraw/element/mutateElement";
+import { measureText } from "@excalidraw/element";
-import { measureText } from "@excalidraw/element/textMeasurements";
 
-import { syncMovedIndices } from "@excalidraw/element/fractionalIndex";
+import { syncMovedIndices } from "@excalidraw/element";
 
-import { newElement } from "@excalidraw/element/newElement";
+import { newElement } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type {
   ExcalidrawElement,
@@ -42,7 +44,7 @@ import type {
 
 import type { Mutable } from "@excalidraw/common/utility-types";
 
-import { CaptureUpdateAction } from "../store";
+import type { Radians } from "@excalidraw/math";
 
 import { register } from "./register";
 
@@ -77,7 +79,7 @@ export const actionUnbindText = register({
           boundTextElement,
           elementsMap,
         );
-        mutateElement(boundTextElement as ExcalidrawTextElement, {
+        app.scene.mutateElement(boundTextElement as ExcalidrawTextElement, {
           containerId: null,
           width,
           height,
@@ -85,7 +87,7 @@ export const actionUnbindText = register({
           x,
           y,
         });
-        mutateElement(element, {
+        app.scene.mutateElement(element, {
           boundElements: element.boundElements?.filter(
             (ele) => ele.id !== boundTextElement.id,
           ),
@@ -150,24 +152,21 @@ export const actionBindText = register({
       textElement = selectedElements[1] as ExcalidrawTextElement;
       container = selectedElements[0] as ExcalidrawTextContainer;
     }
-    mutateElement(textElement, {
+    app.scene.mutateElement(textElement, {
       containerId: container.id,
       verticalAlign: VERTICAL_ALIGN.MIDDLE,
       textAlign: TEXT_ALIGN.CENTER,
       autoResize: true,
+      angle: (isArrowElement(container) ? 0 : container?.angle ?? 0) as Radians,
     });
-    mutateElement(container, {
+    app.scene.mutateElement(container, {
       boundElements: (container.boundElements || []).concat({
         type: "text",
         id: textElement.id,
       }),
     });
     const originalContainerHeight = container.height;
-    redrawTextBoundingBox(
+    redrawTextBoundingBox(textElement, container, app.scene);
-      textElement,
-      container,
-      app.scene.getNonDeletedElementsMap(),
-    );
     // overwritting the cache with original container height so
     // it can be restored when unbind
     updateOriginalContainerCache(container.id, originalContainerHeight);
@@ -297,27 +296,23 @@ export const actionWrapTextInContainer = register({
             }
 
             if (startBinding || endBinding) {
-              mutateElement(ele, { startBinding, endBinding }, false);
+              app.scene.mutateElement(ele, {
+                startBinding,
+                endBinding,
+              });
             }
           });
         }
 
-        mutateElement(
+        app.scene.mutateElement(textElement, {
-          textElement,
+          containerId: container.id,
-          {
+          verticalAlign: VERTICAL_ALIGN.MIDDLE,
-            containerId: container.id,
+          boundElements: null,
-            verticalAlign: VERTICAL_ALIGN.MIDDLE,
+          textAlign: TEXT_ALIGN.CENTER,
-            boundElements: null,
+          autoResize: true,
-            textAlign: TEXT_ALIGN.CENTER,
+        });
-            autoResize: true,
+
-          },
+        redrawTextBoundingBox(textElement, container, app.scene);
-          false,
-        );
-        redrawTextBoundingBox(
-          textElement,
-          container,
-          app.scene.getNonDeletedElementsMap(),
-        );
 
         updatedElements = pushContainerBelowText(
           [...updatedElements, container],

packages/excalidraw/actions/actionCanvas.tsx

@@ -14,8 +14,10 @@ import {
 } from "@excalidraw/common";
 
 import { getNonDeletedElements } from "@excalidraw/element";
-import { newElementWith } from "@excalidraw/element/mutateElement";
+import { newElementWith } from "@excalidraw/element";
-import { getCommonBounds, type SceneBounds } from "@excalidraw/element/bounds";
+import { getCommonBounds, type SceneBounds } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type { ExcalidrawElement } from "@excalidraw/element/types";
 
@@ -44,7 +46,6 @@ import { t } from "../i18n";
 import { getNormalizedZoom } from "../scene";
 import { centerScrollOn } from "../scene/scroll";
 import { getStateForZoom } from "../scene/zoom";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 

packages/excalidraw/actions/actionClipboard.tsx

@@ -1,8 +1,10 @@
-import { isTextElement } from "@excalidraw/element/typeChecks";
+import { isTextElement } from "@excalidraw/element";
-import { getTextFromElements } from "@excalidraw/element/textElement";
+import { getTextFromElements } from "@excalidraw/element";
 
 import { CODES, KEYS, isFirefox } from "@excalidraw/common";
 
+import { CaptureUpdateAction } from "@excalidraw/element";
+
 import {
   copyTextToSystemClipboard,
   copyToClipboard,
@@ -15,8 +17,6 @@ import { DuplicateIcon, cutIcon, pngIcon, svgIcon } from "../components/icons";
 import { exportCanvas, prepareElementsForExport } from "../data/index";
 import { t } from "../i18n";
 
-import { CaptureUpdateAction } from "../store";
-
 import { actionDeleteSelected } from "./actionDeleteSelected";
 import { register } from "./register";
 

packages/excalidraw/actions/actionCropEditor.tsx

@@ -1,11 +1,12 @@
-import { isImageElement } from "@excalidraw/element/typeChecks";
+import { isImageElement } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type { ExcalidrawImageElement } from "@excalidraw/element/types";
 
 import { ToolButton } from "../components/ToolButton";
 import { cropIcon } from "../components/icons";
 import { t } from "../i18n";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 

packages/excalidraw/actions/actionDeleteSelected.test.tsx

@@ -1,6 +1,6 @@
 import React from "react";
 
-import { Excalidraw, mutateElement } from "../index";
+import { Excalidraw } from "../index";
 import { API } from "../tests/helpers/api";
 import { act, assertElements, render } from "../tests/test-utils";
 
@@ -56,7 +56,7 @@ describe("deleting selected elements when frame selected should keep children +
       frameId: f1.id,
     });
 
-    mutateElement(r1, {
+    h.app.scene.mutateElement(r1, {
       boundElements: [{ type: "text", id: t1.id }],
     });
 
@@ -94,7 +94,7 @@ describe("deleting selected elements when frame selected should keep children +
       frameId: null,
     });
 
-    mutateElement(r1, {
+    h.app.scene.mutateElement(r1, {
       boundElements: [{ type: "text", id: t1.id }],
     });
 
@@ -132,7 +132,7 @@ describe("deleting selected elements when frame selected should keep children +
       frameId: null,
     });
 
-    mutateElement(r1, {
+    h.app.scene.mutateElement(r1, {
       boundElements: [{ type: "text", id: t1.id }],
     });
 
@@ -170,7 +170,7 @@ describe("deleting selected elements when frame selected should keep children +
       frameId: null,
     });
 
-    mutateElement(a1, {
+    h.app.scene.mutateElement(a1, {
       boundElements: [{ type: "text", id: t1.id }],
     });
 

packages/excalidraw/actions/actionDeleteSelected.tsx

@@ -1,30 +1,28 @@
 import { KEYS, updateActiveTool } from "@excalidraw/common";
 
 import { getNonDeletedElements } from "@excalidraw/element";
-import { fixBindingsAfterDeletion } from "@excalidraw/element/binding";
+import { fixBindingsAfterDeletion } from "@excalidraw/element";
-import { LinearElementEditor } from "@excalidraw/element/linearElementEditor";
+import { LinearElementEditor } from "@excalidraw/element";
-import {
+import { newElementWith } from "@excalidraw/element";
-  mutateElement,
+import { getContainerElement } from "@excalidraw/element";
-  newElementWith,
-} from "@excalidraw/element/mutateElement";
-import { getContainerElement } from "@excalidraw/element/textElement";
 import {
   isBoundToContainer,
   isElbowArrow,
   isFrameLikeElement,
-} from "@excalidraw/element/typeChecks";
+} from "@excalidraw/element";
-import { getFrameChildren } from "@excalidraw/element/frame";
+import { getFrameChildren } from "@excalidraw/element";
 
 import {
   getElementsInGroup,
   selectGroupsForSelectedElements,
-} from "@excalidraw/element/groups";
+} from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type { ExcalidrawElement } from "@excalidraw/element/types";
 
 import { t } from "../i18n";
 import { getSelectedElements, isSomeElementSelected } from "../scene";
-import { CaptureUpdateAction } from "../store";
 import { TrashIcon } from "../components/icons";
 import { ToolButton } from "../components/ToolButton";
 
@@ -94,7 +92,7 @@ const deleteSelectedElements = (
         el.boundElements.forEach((candidate) => {
           const bound = app.scene.getNonDeletedElementsMap().get(candidate.id);
           if (bound && isElbowArrow(bound)) {
-            mutateElement(bound, {
+            app.scene.mutateElement(bound, {
               startBinding:
                 el.id === bound.startBinding?.elementId
                   ? null
@@ -102,7 +100,6 @@ const deleteSelectedElements = (
               endBinding:
                 el.id === bound.endBinding?.elementId ? null : bound.endBinding,
             });
-            mutateElement(bound, { points: bound.points });
           }
         });
       }
@@ -261,7 +258,11 @@ export const actionDeleteSelected = register({
           : endBindingElement,
       };
 
-      LinearElementEditor.deletePoints(element, selectedPointsIndices);
+      LinearElementEditor.deletePoints(
+        element,
+        app.scene,
+        selectedPointsIndices,
+      );
 
       return {
         elements,

packages/excalidraw/actions/actionDistribute.tsx

@@ -1,16 +1,18 @@
 import { getNonDeletedElements } from "@excalidraw/element";
 
-import { isFrameLikeElement } from "@excalidraw/element/typeChecks";
+import { isFrameLikeElement } from "@excalidraw/element";
 
 import { CODES, KEYS, arrayToMap, getShortcutKey } from "@excalidraw/common";
 
-import { updateFrameMembershipOfSelectedElements } from "@excalidraw/element/frame";
+import { updateFrameMembershipOfSelectedElements } from "@excalidraw/element";
 
-import { distributeElements } from "@excalidraw/element/distribute";
+import { distributeElements } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type { ExcalidrawElement } from "@excalidraw/element/types";
 
-import type { Distribution } from "@excalidraw/element/distribute";
+import type { Distribution } from "@excalidraw/element";
 
 import { ToolButton } from "../components/ToolButton";
 import {
@@ -21,7 +23,6 @@ import {
 import { t } from "../i18n";
 
 import { isSomeElementSelected } from "../scene";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 

packages/excalidraw/actions/actionDuplicateSelection.tsx

@@ -7,32 +7,24 @@ import {
 
 import { getNonDeletedElements } from "@excalidraw/element";
 
-import {
+import { LinearElementEditor } from "@excalidraw/element";
-  isBoundToContainer,
-  isLinearElement,
-} from "@excalidraw/element/typeChecks";
-
-import { LinearElementEditor } from "@excalidraw/element/linearElementEditor";
-
-import { selectGroupsForSelectedElements } from "@excalidraw/element/groups";
 
 import {
-  excludeElementsInFramesFromSelection,
   getSelectedElements,
-} from "@excalidraw/element/selection";
+  getSelectionStateForElements,
+} from "@excalidraw/element";
 
-import { syncMovedIndices } from "@excalidraw/element/fractionalIndex";
+import { syncMovedIndices } from "@excalidraw/element";
 
-import { duplicateElements } from "@excalidraw/element/duplicate";
+import { duplicateElements } from "@excalidraw/element";
 
-import type { ExcalidrawElement } from "@excalidraw/element/types";
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import { ToolButton } from "../components/ToolButton";
 import { DuplicateIcon } from "../components/icons";
 
 import { t } from "../i18n";
 import { isSomeElementSelected } from "../scene";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 
@@ -52,7 +44,7 @@ export const actionDuplicateSelection = register({
       try {
         const newAppState = LinearElementEditor.duplicateSelectedPoints(
           appState,
-          app.scene.getNonDeletedElementsMap(),
+          app.scene,
         );
 
         return {
@@ -65,52 +57,49 @@ export const actionDuplicateSelection = register({
       }
     }
 
-    let { newElements: duplicatedElements, elementsWithClones: nextElements } =
+    let { duplicatedElements, elementsWithDuplicates } = duplicateElements({
-      duplicateElements({
+      type: "in-place",
-        type: "in-place",
+      elements,
-        elements,
+      idsOfElementsToDuplicate: arrayToMap(
-        idsOfElementsToDuplicate: arrayToMap(
+        getSelectedElements(elements, appState, {
-          getSelectedElements(elements, appState, {
+          includeBoundTextElement: true,
-            includeBoundTextElement: true,
+          includeElementsInFrames: true,
-            includeElementsInFrames: true,
-          }),
-        ),
-        appState,
-        randomizeSeed: true,
-        overrides: (element) => ({
-          x: element.x + DEFAULT_GRID_SIZE / 2,
-          y: element.y + DEFAULT_GRID_SIZE / 2,
         }),
-        reverseOrder: false,
+      ),
-      });
+      appState,
+      randomizeSeed: true,
+      overrides: ({ origElement, origIdToDuplicateId }) => {
+        const duplicateFrameId =
+          origElement.frameId && origIdToDuplicateId.get(origElement.frameId);
+        return {
+          x: origElement.x + DEFAULT_GRID_SIZE / 2,
+          y: origElement.y + DEFAULT_GRID_SIZE / 2,
+          frameId: duplicateFrameId ?? origElement.frameId,
+        };
+      },
+    });
 
-    if (app.props.onDuplicate && nextElements) {
+    if (app.props.onDuplicate && elementsWithDuplicates) {
-      const mappedElements = app.props.onDuplicate(nextElements, elements);
+      const mappedElements = app.props.onDuplicate(
+        elementsWithDuplicates,
+        elements,
+      );
       if (mappedElements) {
-        nextElements = mappedElements;
+        elementsWithDuplicates = mappedElements;
       }
     }
 
     return {
-      elements: syncMovedIndices(nextElements, arrayToMap(duplicatedElements)),
+      elements: syncMovedIndices(
+        elementsWithDuplicates,
+        arrayToMap(duplicatedElements),
+      ),
       appState: {
         ...appState,
-        ...updateLinearElementEditors(duplicatedElements),
+        ...getSelectionStateForElements(
-        ...selectGroupsForSelectedElements(
+          duplicatedElements,
-          {
+          getNonDeletedElements(elementsWithDuplicates),
-            editingGroupId: appState.editingGroupId,
-            selectedElementIds: excludeElementsInFramesFromSelection(
-              duplicatedElements,
-            ).reduce((acc: Record<ExcalidrawElement["id"], true>, element) => {
-              if (!isBoundToContainer(element)) {
-                acc[element.id] = true;
-              }
-              return acc;
-            }, {}),
-          },
-          getNonDeletedElements(nextElements),
           appState,
-          null,
         ),
       },
       captureUpdate: CaptureUpdateAction.IMMEDIATELY,
@@ -130,24 +119,3 @@ export const actionDuplicateSelection = register({
     />
   ),
 });
-
-const updateLinearElementEditors = (clonedElements: ExcalidrawElement[]) => {
-  const linears = clonedElements.filter(isLinearElement);
-  if (linears.length === 1) {
-    const linear = linears[0];
-    const boundElements = linear.boundElements?.map((def) => def.id) ?? [];
-    const onlySingleLinearSelected = clonedElements.every(
-      (el) => el.id === linear.id || boundElements.includes(el.id),
-    );
-
-    if (onlySingleLinearSelected) {
-      return {
-        selectedLinearElement: new LinearElementEditor(linear),
-      };
-    }
-  }
-
-  return {
-    selectedLinearElement: null,
-  };
-};

packages/excalidraw/actions/actionElementLink.ts

@@ -2,13 +2,14 @@ import {
   canCreateLinkFromElements,
   defaultGetElementLinkFromSelection,
   getLinkIdAndTypeFromSelection,
-} from "@excalidraw/element/elementLink";
+} from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import { copyTextToSystemClipboard } from "../clipboard";
 import { copyIcon, elementLinkIcon } from "../components/icons";
 import { t } from "../i18n";
 import { getSelectedElements } from "../scene";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 

packages/excalidraw/actions/actionElementLock.ts

@@ -1,18 +1,23 @@
-import { KEYS, arrayToMap } from "@excalidraw/common";
+import { KEYS, arrayToMap, randomId } from "@excalidraw/common";
 
-import { newElementWith } from "@excalidraw/element/mutateElement";
+import {
+  elementsAreInSameGroup,
+  newElementWith,
+  selectGroupsFromGivenElements,
+} from "@excalidraw/element";
 
-import { isFrameLikeElement } from "@excalidraw/element/typeChecks";
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type { ExcalidrawElement } from "@excalidraw/element/types";
 
 import { LockedIcon, UnlockedIcon } from "../components/icons";
 
 import { getSelectedElements } from "../scene";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 
+import type { AppState } from "../types";
+
 const shouldLock = (elements: readonly ExcalidrawElement[]) =>
   elements.every((el) => !el.locked);
 
@@ -23,15 +28,10 @@ export const actionToggleElementLock = register({
       selectedElementIds: appState.selectedElementIds,
       includeBoundTextElement: false,
     });
-    if (selected.length === 1 && !isFrameLikeElement(selected[0])) {
-      return selected[0].locked
-        ? "labels.elementLock.unlock"
-        : "labels.elementLock.lock";
-    }
 
     return shouldLock(selected)
-      ? "labels.elementLock.lockAll"
+      ? "labels.elementLock.lock"
-      : "labels.elementLock.unlockAll";
+      : "labels.elementLock.unlock";
   },
   icon: (appState, elements) => {
     const selectedElements = getSelectedElements(elements, appState);
@@ -58,19 +58,84 @@ export const actionToggleElementLock = register({
 
     const nextLockState = shouldLock(selectedElements);
     const selectedElementsMap = arrayToMap(selectedElements);
-    return {
-      elements: elements.map((element) => {
-        if (!selectedElementsMap.has(element.id)) {
-          return element;
-        }
 
-        return newElementWith(element, { locked: nextLockState });
+    const isAGroup =
-      }),
+      selectedElements.length > 1 && elementsAreInSameGroup(selectedElements);
+    const isASingleUnit = selectedElements.length === 1 || isAGroup;
+    const newGroupId = isASingleUnit ? null : randomId();
+
+    let nextLockedMultiSelections = { ...appState.lockedMultiSelections };
+
+    if (nextLockState) {
+      nextLockedMultiSelections = {
+        ...appState.lockedMultiSelections,
+        ...(newGroupId ? { [newGroupId]: true } : {}),
+      };
+    } else if (isAGroup) {
+      const groupId = selectedElements[0].groupIds.at(-1)!;
+      delete nextLockedMultiSelections[groupId];
+    }
+
+    const nextElements = elements.map((element) => {
+      if (!selectedElementsMap.has(element.id)) {
+        return element;
+      }
+
+      let nextGroupIds = element.groupIds;
+
+      // if locking together, add to group
+      // if unlocking, remove the temporary group
+      if (nextLockState) {
+        if (newGroupId) {
+          nextGroupIds = [...nextGroupIds, newGroupId];
+        }
+      } else {
+        nextGroupIds = nextGroupIds.filter(
+          (groupId) => !appState.lockedMultiSelections[groupId],
+        );
+      }
+
+      return newElementWith(element, {
+        locked: nextLockState,
+        // do not recreate the array unncessarily
+        groupIds:
+          nextGroupIds.length !== element.groupIds.length
+            ? nextGroupIds
+            : element.groupIds,
+      });
+    });
+
+    const nextElementsMap = arrayToMap(nextElements);
+    const nextSelectedElementIds: AppState["selectedElementIds"] = nextLockState
+      ? {}
+      : Object.fromEntries(selectedElements.map((el) => [el.id, true]));
+    const unlockedSelectedElements = selectedElements.map(
+      (el) => nextElementsMap.get(el.id) || el,
+    );
+    const nextSelectedGroupIds = nextLockState
+      ? {}
+      : selectGroupsFromGivenElements(unlockedSelectedElements, appState);
+
+    const activeLockedId = nextLockState
+      ? newGroupId
+        ? newGroupId
+        : isAGroup
+        ? selectedElements[0].groupIds.at(-1)!
+        : selectedElements[0].id
+      : null;
+
+    return {
+      elements: nextElements,
+
       appState: {
         ...appState,
+        selectedElementIds: nextSelectedElementIds,
+        selectedGroupIds: nextSelectedGroupIds,
         selectedLinearElement: nextLockState
           ? null
           : appState.selectedLinearElement,
+        lockedMultiSelections: nextLockedMultiSelections,
+        activeLockedId,
       },
       captureUpdate: CaptureUpdateAction.IMMEDIATELY,
     };
@@ -103,18 +168,44 @@ export const actionUnlockAllElements = register({
   perform: (elements, appState) => {
     const lockedElements = elements.filter((el) => el.locked);
 
+    const nextElements = elements.map((element) => {
+      if (element.locked) {
+        // remove the temporary groupId if it exists
+        const nextGroupIds = element.groupIds.filter(
+          (gid) => !appState.lockedMultiSelections[gid],
+        );
+
+        return newElementWith(element, {
+          locked: false,
+          groupIds:
+            // do not recreate the array unncessarily
+            element.groupIds.length !== nextGroupIds.length
+              ? nextGroupIds
+              : element.groupIds,
+        });
+      }
+      return element;
+    });
+
+    const nextElementsMap = arrayToMap(nextElements);
+
+    const unlockedElements = lockedElements.map(
+      (el) => nextElementsMap.get(el.id) || el,
+    );
+
     return {
-      elements: elements.map((element) => {
+      elements: nextElements,
-        if (element.locked) {
-          return newElementWith(element, { locked: false });
-        }
-        return element;
-      }),
       appState: {
         ...appState,
         selectedElementIds: Object.fromEntries(
           lockedElements.map((el) => [el.id, true]),
         ),
+        selectedGroupIds: selectGroupsFromGivenElements(
+          unlockedElements,
+          appState,
+        ),
+        lockedMultiSelections: {},
+        activeLockedId: null,
       },
       captureUpdate: CaptureUpdateAction.IMMEDIATELY,
     };

packages/excalidraw/actions/actionEmbeddable.ts

@@ -1,7 +1,8 @@
 import { updateActiveTool } from "@excalidraw/common";
 
+import { CaptureUpdateAction } from "@excalidraw/element";
+
 import { setCursorForShape } from "../cursor";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 

packages/excalidraw/actions/actionExport.tsx

@@ -7,6 +7,8 @@ import {
 
 import { getNonDeletedElements } from "@excalidraw/element";
 
+import { CaptureUpdateAction } from "@excalidraw/element";
+
 import type { Theme } from "@excalidraw/element/types";
 
 import { useDevice } from "../components/App";
@@ -24,7 +26,6 @@ import { resaveAsImageWithScene } from "../data/resave";
 import { t } from "../i18n";
 import { getSelectedElements, isSomeElementSelected } from "../scene";
 import { getExportSize } from "../scene/export";
-import { CaptureUpdateAction } from "../store";
 
 import "../components/ToolIcon.scss";
 

packages/excalidraw/actions/actionFinalize.tsx

@@ -1,28 +1,24 @@
-import { type GlobalPoint, pointFrom } from "@excalidraw/math";
+import { pointFrom } from "@excalidraw/math";
 
 import {
   maybeBindLinearElement,
   bindOrUnbindLinearElement,
-  getHoveredElementForBinding,
+} from "@excalidraw/element";
-} from "@excalidraw/element/binding";
+import { LinearElementEditor } from "@excalidraw/element";
-import { LinearElementEditor } from "@excalidraw/element/linearElementEditor";
-import { mutateElement } from "@excalidraw/element/mutateElement";
-import {
-  isBindingElement,
-  isElbowArrow,
-  isLinearElement,
-} from "@excalidraw/element/typeChecks";
 
-import { KEYS, updateActiveTool } from "@excalidraw/common";
+import { isBindingElement, isLinearElement } from "@excalidraw/element";
-import { isPathALoop } from "@excalidraw/element/shapes";
 
-import { isInvisiblySmallElement } from "@excalidraw/element/sizeHelpers";
+import { KEYS, arrayToMap, updateActiveTool } from "@excalidraw/common";
+import { isPathALoop } from "@excalidraw/element";
+
+import { isInvisiblySmallElement } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import { t } from "../i18n";
 import { resetCursor } from "../cursor";
 import { done } from "../components/icons";
 import { ToolButton } from "../components/ToolButton";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 
@@ -48,7 +44,6 @@ export const actionFinalize = register({
             element,
             startBindingElement,
             endBindingElement,
-            elementsMap,
             scene,
           );
         }
@@ -74,7 +69,11 @@ export const actionFinalize = register({
       scene.getElement(appState.pendingImageElementId);
 
     if (pendingImageElement) {
-      mutateElement(pendingImageElement, { isDeleted: true }, false);
+      scene.mutateElement(
+        pendingImageElement,
+        { isDeleted: true },
+        { informMutation: false, isDragging: false },
+      );
     }
 
     if (window.document.activeElement instanceof HTMLElement) {
@@ -93,28 +92,12 @@ export const actionFinalize = register({
         multiPointElement.type !== "freedraw" &&
         appState.lastPointerDownWith !== "touch"
       ) {
-        const { x: rx, y: ry, points, lastCommittedPoint } = multiPointElement;
+        const { points, lastCommittedPoint } = multiPointElement;
-        const lastGlobalPoint = pointFrom<GlobalPoint>(
-          rx + points[points.length - 1][0],
-          ry + points[points.length - 1][1],
-        );
-        const hoveredElementForBinding = getHoveredElementForBinding(
-          {
-            x: lastGlobalPoint[0],
-            y: lastGlobalPoint[1],
-          },
-          elements,
-          elementsMap,
-          app.state.zoom,
-          true,
-          isElbowArrow(multiPointElement),
-        );
         if (
-          !hoveredElementForBinding &&
+          !lastCommittedPoint ||
-          (!lastCommittedPoint ||
+          points[points.length - 1] !== lastCommittedPoint
-            points[points.length - 1] !== lastCommittedPoint)
         ) {
-          mutateElement(multiPointElement, {
+          scene.mutateElement(multiPointElement, {
             points: multiPointElement.points.slice(0, -1),
           });
         }
@@ -138,7 +121,7 @@ export const actionFinalize = register({
         if (isLoop) {
           const linePoints = multiPointElement.points;
           const firstPoint = linePoints[0];
-          mutateElement(multiPointElement, {
+          scene.mutateElement(multiPointElement, {
             points: linePoints.map((p, index) =>
               index === linePoints.length - 1
                 ? pointFrom(firstPoint[0], firstPoint[1])
@@ -153,12 +136,12 @@ export const actionFinalize = register({
         !isLoop &&
         multiPointElement.points.length > 1
       ) {
-        maybeBindLinearElement(
+        const [x, y] = LinearElementEditor.getPointAtIndexGlobalCoordinates(
           multiPointElement,
-          appState,
+          -1,
-          elementsMap,
+          arrayToMap(elements),
-          elements,
         );
+        maybeBindLinearElement(multiPointElement, appState, { x, y }, scene);
       }
     }
 
@@ -214,7 +197,10 @@ export const actionFinalize = register({
         // To select the linear element when user has finished mutipoint editing
         selectedLinearElement:
           multiPointElement && isLinearElement(multiPointElement)
-            ? new LinearElementEditor(multiPointElement)
+            ? new LinearElementEditor(
+                multiPointElement,
+                arrayToMap(newElements),
+              )
             : appState.selectedLinearElement,
         pendingImageElementId: null,
       },

packages/excalidraw/actions/actionFlip.test.tsx

@@ -73,12 +73,12 @@ describe("flipping re-centers selection", () => {
     API.executeAction(actionFlipHorizontal);
 
     const rec1 = h.elements.find((el) => el.id === "rec1")!;
-    expect(Math.floor(rec1.x)).toBeCloseTo(100, 0);
+    expect(rec1.x).toBeCloseTo(100, 0);
-    expect(Math.floor(rec1.y)).toBeCloseTo(100, 0);
+    expect(rec1.y).toBeCloseTo(100, 0);
 
     const rec2 = h.elements.find((el) => el.id === "rec2")!;
-    expect(Math.floor(rec2.x)).toBeCloseTo(220, 0);
+    expect(rec2.x).toBeCloseTo(220, 0);
-    expect(Math.floor(rec2.y)).toBeCloseTo(250, 0);
+    expect(rec2.y).toBeCloseTo(250, 0);
   });
 });
 
@@ -87,16 +87,6 @@ describe("flipping arrowheads", () => {
     await render(<Excalidraw />);
   });
 
-  // UX RATIONALE: If we flip bound arrows by the center axes then there could
-  // be a case where the bindable objects are offset and the arrow would lay
-  // outside both bindable objects binding range, yet remain bound to then,
-  // resulting in a jump on movement.
-  //
-  // We are aware that 2+ point simple arrows behave incorrectly when flipped
-  // this way but it was decided that there is no known use case for this so
-  // left as it is.
-  //
-  // Demo: https://excalidraw.com/#json=isE-S8LqNlD1u-LsS8Ezz,iZZ09PPasp6OWbGtJwOUGQ
   it("flipping bound arrow should flip arrowheads only", () => {
     const rect = API.createElement({
       type: "rectangle",
@@ -133,7 +123,6 @@ describe("flipping arrowheads", () => {
     expect(API.getElement(arrow).endArrowhead).toBe("arrow");
   });
 
-  // UX RATIONALE: See above for the reasoning.
   it("flipping bound arrow should flip arrowheads only 2", () => {
     const rect = API.createElement({
       type: "rectangle",
@@ -175,9 +164,7 @@ describe("flipping arrowheads", () => {
     expect(API.getElement(arrow).endArrowhead).toBe("circle");
   });
 
-  // UX RATIONALE: Unbound arrows are not constrained by other elements and
+  it("flipping unbound arrow shouldn't flip arrowheads", () => {
-  // should behave like any other element when flipped for consisency.
-  it("flipping unbound arrow should mirror on horizontal or vertical axis", () => {
     const arrow = API.createElement({
       type: "arrow",
       id: "arrow1",

packages/excalidraw/actions/actionFlip.ts

@@ -1,33 +1,31 @@
 import { getNonDeletedElements } from "@excalidraw/element";
 import {
-  bindOrUnbindLinearElement,
+  bindOrUnbindLinearElements,
   isBindingEnabled,
-} from "@excalidraw/element/binding";
+} from "@excalidraw/element";
-import { getCommonBoundingBox } from "@excalidraw/element/bounds";
+import { getCommonBoundingBox } from "@excalidraw/element";
-import {
+import { newElementWith } from "@excalidraw/element";
-  mutateElement,
+import { deepCopyElement } from "@excalidraw/element";
-  newElementWith,
+import { resizeMultipleElements } from "@excalidraw/element";
-} from "@excalidraw/element/mutateElement";
-import { deepCopyElement } from "@excalidraw/element/duplicate";
-import { resizeMultipleElements } from "@excalidraw/element/resizeElements";
 import {
   isArrowElement,
-  isBindableElement,
+  isElbowArrow,
-  isBindingElement,
+  isLinearElement,
-} from "@excalidraw/element/typeChecks";
+} from "@excalidraw/element";
-import { updateFrameMembershipOfSelectedElements } from "@excalidraw/element/frame";
+import { updateFrameMembershipOfSelectedElements } from "@excalidraw/element";
 import { CODES, KEYS, arrayToMap } from "@excalidraw/common";
 
+import { CaptureUpdateAction } from "@excalidraw/element";
+
 import type {
   ExcalidrawArrowElement,
-  ExcalidrawBindableElement,
+  ExcalidrawElbowArrowElement,
   ExcalidrawElement,
   NonDeleted,
   NonDeletedSceneElementsMap,
 } from "@excalidraw/element/types";
 
 import { getSelectedElements } from "../scene";
-import { CaptureUpdateAction } from "../store";
 
 import { flipHorizontal, flipVertical } from "../components/icons";
 
@@ -160,54 +158,50 @@ const flipElements = (
     },
   );
 
-  const selectedBindables = selectedElements.filter(
+  bindOrUnbindLinearElements(
-    (e): e is ExcalidrawBindableElement => isBindableElement(e),
+    selectedElements.filter(isLinearElement),
+    isBindingEnabled(appState),
+    [],
+    app.scene,
+    appState.zoom,
   );
+
+  // ---------------------------------------------------------------------------
+  // flipping arrow elements (and potentially other) makes the selection group
+  // "move" across the canvas because of how arrows can bump against the "wall"
+  // of the selection, so we need to center the group back to the original
+  // position so that repeated flips don't accumulate the offset
+
+  const { elbowArrows, otherElements } = selectedElements.reduce(
+    (
+      acc: {
+        elbowArrows: ExcalidrawElbowArrowElement[];
+        otherElements: ExcalidrawElement[];
+      },
+      element,
+    ) =>
+      isElbowArrow(element)
+        ? { ...acc, elbowArrows: acc.elbowArrows.concat(element) }
+        : { ...acc, otherElements: acc.otherElements.concat(element) },
+    { elbowArrows: [], otherElements: [] },
+  );
+
   const { midX: newMidX, midY: newMidY } =
     getCommonBoundingBox(selectedElements);
   const [diffX, diffY] = [midX - newMidX, midY - newMidY];
-
+  otherElements.forEach((element) =>
-  selectedElements.forEach((element) => {
+    app.scene.mutateElement(element, {
-    fixBindings(element, selectedBindables, app, elementsMap);
-
-    mutateElement(element, {
       x: element.x + diffX,
       y: element.y + diffY,
-    });
+    }),
-  });
+  );
+  elbowArrows.forEach((element) =>
+    app.scene.mutateElement(element, {
+      x: element.x + diffX,
+      y: element.y + diffY,
+    }),
+  );
+  // ---------------------------------------------------------------------------
 
   return selectedElements;
 };
-
-// BEHAVIOR: If you flip a binding element along with its bound elements,
-// the binding should be preserved. If your selected elements doesn't contain
-// the bound element(s), then remove the binding. Also do not "magically"
-// re-bind a binable just because the arrow endpoint is flipped into the
-// binding range. Rationale being the consistency with the fact that arrows
-// don't bind when the arrow is moved into the binding range by its shaft.
-const fixBindings = (
-  element: ExcalidrawElement,
-  selectedBindables: ExcalidrawBindableElement[],
-  app: AppClassProperties,
-  elementsMap: NonDeletedSceneElementsMap,
-) => {
-  if (isBindingElement(element)) {
-    let start = null;
-    let end = null;
-
-    if (isBindingEnabled(app.state)) {
-      start = element.startBinding
-        ? selectedBindables.find(
-            (e) => element.startBinding!.elementId === e.id,
-          ) ?? null
-        : null;
-      end = element.endBinding
-        ? selectedBindables.find(
-            (e) => element.endBinding!.elementId === e.id,
-          ) ?? null
-        : null;
-    }
-
-    bindOrUnbindLinearElement(element, start, end, elementsMap, app.scene);
-  }
-};

packages/excalidraw/actions/actionFrame.ts

@@ -1,25 +1,26 @@
 import { getNonDeletedElements } from "@excalidraw/element";
-import { mutateElement } from "@excalidraw/element/mutateElement";
+import { mutateElement } from "@excalidraw/element";
-import { newFrameElement } from "@excalidraw/element/newElement";
+import { newFrameElement } from "@excalidraw/element";
-import { isFrameLikeElement } from "@excalidraw/element/typeChecks";
+import { isFrameLikeElement } from "@excalidraw/element";
 import {
   addElementsToFrame,
   removeAllElementsFromFrame,
-} from "@excalidraw/element/frame";
+} from "@excalidraw/element";
-import { getFrameChildren } from "@excalidraw/element/frame";
+import { getFrameChildren } from "@excalidraw/element";
 
 import { KEYS, updateActiveTool } from "@excalidraw/common";
 
-import { getElementsInGroup } from "@excalidraw/element/groups";
+import { getElementsInGroup } from "@excalidraw/element";
 
-import { getCommonBounds } from "@excalidraw/element/bounds";
+import { getCommonBounds } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type { ExcalidrawElement } from "@excalidraw/element/types";
 
 import { setCursorForShape } from "../cursor";
 import { frameToolIcon } from "../components/icons";
 import { getSelectedElements } from "../scene";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 
@@ -173,11 +174,9 @@ export const actionWrapSelectionInFrame = register({
   },
   perform: (elements, appState, _, app) => {
     const selectedElements = getSelectedElements(elements, appState);
+    const elementsMap = app.scene.getNonDeletedElementsMap();
 
-    const [x1, y1, x2, y2] = getCommonBounds(
+    const [x1, y1, x2, y2] = getCommonBounds(selectedElements, elementsMap);
-      selectedElements,
-      app.scene.getNonDeletedElementsMap(),
-    );
     const PADDING = 16;
     const frame = newFrameElement({
       x: x1 - PADDING,
@@ -196,13 +195,9 @@ export const actionWrapSelectionInFrame = register({
       for (const elementInGroup of elementsInGroup) {
         const index = elementInGroup.groupIds.indexOf(appState.editingGroupId);
 
-        mutateElement(
+        mutateElement(elementInGroup, elementsMap, {
-          elementInGroup,
+          groupIds: elementInGroup.groupIds.slice(0, index),
-          {
+        });
-            groupIds: elementInGroup.groupIds.slice(0, index),
-          },
-          false,
-        );
       }
     }
 

packages/excalidraw/actions/actionGroup.tsx

@@ -1,8 +1,8 @@
 import { getNonDeletedElements } from "@excalidraw/element";
 
-import { newElementWith } from "@excalidraw/element/mutateElement";
+import { newElementWith } from "@excalidraw/element";
 
-import { isBoundToContainer } from "@excalidraw/element/typeChecks";
+import { isBoundToContainer } from "@excalidraw/element";
 
 import {
   frameAndChildrenSelectedTogether,
@@ -12,7 +12,7 @@ import {
   groupByFrameLikes,
   removeElementsFromFrame,
   replaceAllElementsInFrame,
-} from "@excalidraw/element/frame";
+} from "@excalidraw/element";
 
 import { KEYS, randomId, arrayToMap, getShortcutKey } from "@excalidraw/common";
 
@@ -24,9 +24,11 @@ import {
   addToGroup,
   removeFromSelectedGroups,
   isElementInGroup,
-} from "@excalidraw/element/groups";
+} from "@excalidraw/element";
 
-import { syncMovedIndices } from "@excalidraw/element/fractionalIndex";
+import { syncMovedIndices } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type {
   ExcalidrawElement,
@@ -40,7 +42,6 @@ import { UngroupIcon, GroupIcon } from "../components/icons";
 import { t } from "../i18n";
 
 import { isSomeElementSelected } from "../scene";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 

packages/excalidraw/actions/actionHistory.tsx

@@ -1,5 +1,9 @@
 import { isWindows, KEYS, matchKey, arrayToMap } from "@excalidraw/common";
 
+import { CaptureUpdateAction } from "@excalidraw/element";
+
+import { orderByFractionalIndex } from "@excalidraw/element";
+
 import type { SceneElementsMap } from "@excalidraw/element/types";
 
 import { ToolButton } from "../components/ToolButton";
@@ -7,10 +11,8 @@ import { UndoIcon, RedoIcon } from "../components/icons";
 import { HistoryChangedEvent } from "../history";
 import { useEmitter } from "../hooks/useEmitter";
 import { t } from "../i18n";
-import { CaptureUpdateAction } from "../store";
 
 import type { History } from "../history";
-import type { Store } from "../store";
 import type { AppClassProperties, AppState } from "../types";
 import type { Action, ActionResult } from "./types";
 
@@ -35,7 +37,11 @@ const executeHistoryAction = (
     }
 
     const [nextElementsMap, nextAppState] = result;
-    const nextElements = Array.from(nextElementsMap.values());
+
+    // order by fractional indices in case the map was accidently modified in the meantime
+    const nextElements = orderByFractionalIndex(
+      Array.from(nextElementsMap.values()),
+    );
 
     return {
       appState: nextAppState,
@@ -47,9 +53,9 @@ const executeHistoryAction = (
   return { captureUpdate: CaptureUpdateAction.EVENTUALLY };
 };
 
-type ActionCreator = (history: History, store: Store) => Action;
+type ActionCreator = (history: History) => Action;
 
-export const createUndoAction: ActionCreator = (history, store) => ({
+export const createUndoAction: ActionCreator = (history) => ({
   name: "undo",
   label: "buttons.undo",
   icon: UndoIcon,
@@ -57,11 +63,7 @@ export const createUndoAction: ActionCreator = (history, store) => ({
   viewMode: false,
   perform: (elements, appState, value, app) =>
     executeHistoryAction(app, appState, () =>
-      history.undo(
+      history.undo(arrayToMap(elements) as SceneElementsMap, appState),
-        arrayToMap(elements) as SceneElementsMap, // TODO: #7348 refactor action manager to already include `SceneElementsMap`
-        appState,
-        store.snapshot,
-      ),
     ),
   keyTest: (event) =>
     event[KEYS.CTRL_OR_CMD] && matchKey(event, KEYS.Z) && !event.shiftKey,
@@ -88,19 +90,15 @@ export const createUndoAction: ActionCreator = (history, store) => ({
   },
 });
 
-export const createRedoAction: ActionCreator = (history, store) => ({
+export const createRedoAction: ActionCreator = (history) => ({
   name: "redo",
   label: "buttons.redo",
   icon: RedoIcon,
   trackEvent: { category: "history" },
   viewMode: false,
-  perform: (elements, appState, _, app) =>
+  perform: (elements, appState, __, app) =>
     executeHistoryAction(app, appState, () =>
-      history.redo(
+      history.redo(arrayToMap(elements) as SceneElementsMap, appState),
-        arrayToMap(elements) as SceneElementsMap, // TODO: #7348 refactor action manager to already include `SceneElementsMap`
-        appState,
-        store.snapshot,
-      ),
     ),
   keyTest: (event) =>
     (event[KEYS.CTRL_OR_CMD] && event.shiftKey && matchKey(event, KEYS.Z)) ||

packages/excalidraw/actions/actionLinearEditor.tsx

@@ -1,6 +1,10 @@
-import { LinearElementEditor } from "@excalidraw/element/linearElementEditor";
+import { LinearElementEditor } from "@excalidraw/element";
 
-import { isElbowArrow, isLinearElement } from "@excalidraw/element/typeChecks";
+import { isElbowArrow, isLinearElement } from "@excalidraw/element";
+
+import { arrayToMap } from "@excalidraw/common";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type { ExcalidrawLinearElement } from "@excalidraw/element/types";
 
@@ -9,7 +13,6 @@ import { ToolButton } from "../components/ToolButton";
 import { lineEditorIcon } from "../components/icons";
 
 import { t } from "../i18n";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 
@@ -50,7 +53,7 @@ export const actionToggleLinearEditor = register({
     const editingLinearElement =
       appState.editingLinearElement?.elementId === selectedElement.id
         ? null
-        : new LinearElementEditor(selectedElement);
+        : new LinearElementEditor(selectedElement, arrayToMap(elements));
     return {
       appState: {
         ...appState,

packages/excalidraw/actions/actionLink.tsx

@@ -1,14 +1,15 @@
-import { isEmbeddableElement } from "@excalidraw/element/typeChecks";
+import { isEmbeddableElement } from "@excalidraw/element";
 
 import { KEYS, getShortcutKey } from "@excalidraw/common";
 
+import { CaptureUpdateAction } from "@excalidraw/element";
+
 import { ToolButton } from "../components/ToolButton";
 import { getContextMenuLabel } from "../components/hyperlink/Hyperlink";
 import { LinkIcon } from "../components/icons";
 import { t } from "../i18n";
 
 import { getSelectedElements } from "../scene";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 

packages/excalidraw/actions/actionMenu.tsx

@@ -2,14 +2,14 @@ import { KEYS } from "@excalidraw/common";
 
 import { getNonDeletedElements } from "@excalidraw/element";
 
-import { showSelectedShapeActions } from "@excalidraw/element/showSelectedShapeActions";
+import { showSelectedShapeActions } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import { ToolButton } from "../components/ToolButton";
 import { HamburgerMenuIcon, HelpIconThin, palette } from "../components/icons";
 import { t } from "../i18n";
 
-import { CaptureUpdateAction } from "../store";
-
 import { register } from "./register";
 
 export const actionToggleCanvasMenu = register({

packages/excalidraw/actions/actionNavigate.tsx

@@ -1,5 +1,7 @@
 import clsx from "clsx";
 
+import { CaptureUpdateAction } from "@excalidraw/element";
+
 import { getClientColor } from "../clients";
 import { Avatar } from "../components/Avatar";
 import {
@@ -8,7 +10,6 @@ import {
   microphoneMutedIcon,
 } from "../components/icons";
 import { t } from "../i18n";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 

packages/excalidraw/actions/actionSelectAll.ts

@@ -1,15 +1,15 @@
 import { getNonDeletedElements } from "@excalidraw/element";
-import { LinearElementEditor } from "@excalidraw/element/linearElementEditor";
+import { LinearElementEditor } from "@excalidraw/element";
-import { isLinearElement, isTextElement } from "@excalidraw/element/typeChecks";
+import { isLinearElement, isTextElement } from "@excalidraw/element";
 
-import { KEYS } from "@excalidraw/common";
+import { arrayToMap, KEYS } from "@excalidraw/common";
 
-import { selectGroupsForSelectedElements } from "@excalidraw/element/groups";
+import { selectGroupsForSelectedElements } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type { ExcalidrawElement } from "@excalidraw/element/types";
 
-import { CaptureUpdateAction } from "../store";
-
 import { selectAllIcon } from "../components/icons";
 
 import { register } from "./register";
@@ -53,7 +53,7 @@ export const actionSelectAll = register({
           // single linear element selected
           Object.keys(selectedElementIds).length === 1 &&
           isLinearElement(elements[0])
-            ? new LinearElementEditor(elements[0])
+            ? new LinearElementEditor(elements[0], arrayToMap(elements))
             : null,
       },
       captureUpdate: CaptureUpdateAction.IMMEDIATELY,

packages/excalidraw/actions/actionStyles.ts

@@ -7,7 +7,7 @@ import {
   getLineHeight,
 } from "@excalidraw/common";
 
-import { newElementWith } from "@excalidraw/element/mutateElement";
+import { newElementWith } from "@excalidraw/element";
 
 import {
   hasBoundTextElement,
@@ -17,12 +17,14 @@ import {
   isArrowElement,
   isExcalidrawElement,
   isTextElement,
-} from "@excalidraw/element/typeChecks";
+} from "@excalidraw/element";
 
 import {
   getBoundTextElement,
   redrawTextBoundingBox,
-} from "@excalidraw/element/textElement";
+} from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import type { ExcalidrawTextElement } from "@excalidraw/element/types";
 
@@ -30,7 +32,6 @@ import { paintIcon } from "../components/icons";
 
 import { t } from "../i18n";
 import { getSelectedElements } from "../scene";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";
 
@@ -139,11 +140,8 @@ export const actionPasteStyles = register({
                     element.id === newElement.containerId,
                 ) || null;
             }
-            redrawTextBoundingBox(
+
-              newElement,
+            redrawTextBoundingBox(newElement, container, app.scene);
-              container,
-              app.scene.getNonDeletedElementsMap(),
-            );
           }
 
           if (

packages/excalidraw/actions/actionTextAutoResize.ts

@@ -1,12 +1,13 @@
 import { getFontString } from "@excalidraw/common";
 
-import { newElementWith } from "@excalidraw/element/mutateElement";
+import { newElementWith } from "@excalidraw/element";
-import { measureText } from "@excalidraw/element/textMeasurements";
+import { measureText } from "@excalidraw/element";
 
-import { isTextElement } from "@excalidraw/element/typeChecks";
+import { isTextElement } from "@excalidraw/element";
+
+import { CaptureUpdateAction } from "@excalidraw/element";
 
 import { getSelectedElements } from "../scene";
-import { CaptureUpdateAction } from "../store";
 
 import { register } from "./register";