fix: move actions related to font size to its own file

packages/excalidraw/actions/actionFontSize.ts

@@ -0,0 +1,94 @@
+import { ExcalidrawElement, ExcalidrawTextElement } from "../element/types";
+import { KEYS } from "../keys";
+import { AppClassProperties, AppState } from "../types";
+import { register } from "./register";
+
+const FONT_SIZE_RELATIVE_INCREASE_STEP = 0.1;
+
+const changeFontSize = (
+  elements: readonly ExcalidrawElement[],
+  appState: AppState,
+  app: AppClassProperties,
+  getNewFontSize: (element: ExcalidrawTextElement) => number,
+  fallbackValue?: ExcalidrawTextElement["fontSize"],
+) => {
+  const newFontSizes = new Set<number>();
+
+  return {
+    elements: changeProperty(
+      elements,
+      appState,
+      (oldElement) => {
+        if (isTextElement(oldElement)) {
+          const newFontSize = getNewFontSize(oldElement);
+          newFontSizes.add(newFontSize);
+
+          let newElement: ExcalidrawTextElement = newElementWith(oldElement, {
+            fontSize: newFontSize,
+          });
+          redrawTextBoundingBox(
+            newElement,
+            app.scene.getContainerElement(oldElement),
+          );
+
+          newElement = offsetElementAfterFontResize(oldElement, newElement);
+
+          return newElement;
+        }
+
+        return oldElement;
+      },
+      true,
+    ),
+    appState: {
+      ...appState,
+      // update state only if we've set all select text elements to
+      // the same font size
+      currentItemFontSize:
+        newFontSizes.size === 1
+          ? [...newFontSizes][0]
+          : fallbackValue ?? appState.currentItemFontSize,
+    },
+    commitToHistory: true,
+  };
+};
+
+export const actionDecreaseFontSize = register({
+  name: "decreaseFontSize",
+  trackEvent: false,
+  perform: (elements, appState, value, app) => {
+    return changeFontSize(elements, appState, app, (element) =>
+      Math.round(
+        // get previous value before relative increase (doesn't work fully
+        // due to rounding and float precision issues)
+        (1 / (1 + FONT_SIZE_RELATIVE_INCREASE_STEP)) * element.fontSize,
+      ),
+    );
+  },
+  keyTest: (event) => {
+    return (
+      event[KEYS.CTRL_OR_CMD] &&
+      event.shiftKey &&
+      // KEYS.COMMA needed for MacOS
+      (event.key === KEYS.CHEVRON_LEFT || event.key === KEYS.COMMA)
+    );
+  },
+});
+
+export const actionIncreaseFontSize = register({
+  name: "increaseFontSize",
+  trackEvent: false,
+  perform: (elements, appState, value, app) => {
+    return changeFontSize(elements, appState, app, (element) =>
+      Math.round(element.fontSize * (1 + FONT_SIZE_RELATIVE_INCREASE_STEP)),
+    );
+  },
+  keyTest: (event) => {
+    return (
+      event[KEYS.CTRL_OR_CMD] &&
+      event.shiftKey &&
+      // KEYS.PERIOD needed for MacOS
+      (event.key === KEYS.CHEVRON_RIGHT || event.key === KEYS.PERIOD)
+    );
+  },
+});

packages/excalidraw/actions/actionProperties.tsx

@@ -96,8 +96,6 @@ import { hasStrokeColor } from "../scene/comparisons";
 import { arrayToMap, getShortcutKey } from "../utils";
 import { register } from "./register";
 
-const FONT_SIZE_RELATIVE_INCREASE_STEP = 0.1;
-
 export const changeProperty = (
   elements: readonly ExcalidrawElement[],
   appState: AppState,
@@ -185,54 +183,6 @@ const offsetElementAfterFontResize = (
   );
 };
 
-const changeFontSize = (
-  elements: readonly ExcalidrawElement[],
-  appState: AppState,
-  app: AppClassProperties,
-  getNewFontSize: (element: ExcalidrawTextElement) => number,
-  fallbackValue?: ExcalidrawTextElement["fontSize"],
-) => {
-  const newFontSizes = new Set<number>();
-
-  return {
-    elements: changeProperty(
-      elements,
-      appState,
-      (oldElement) => {
-        if (isTextElement(oldElement)) {
-          const newFontSize = getNewFontSize(oldElement);
-          newFontSizes.add(newFontSize);
-
-          let newElement: ExcalidrawTextElement = newElementWith(oldElement, {
-            fontSize: newFontSize,
-          });
-          redrawTextBoundingBox(
-            newElement,
-            app.scene.getContainerElement(oldElement),
-          );
-
-          newElement = offsetElementAfterFontResize(oldElement, newElement);
-
-          return newElement;
-        }
-
-        return oldElement;
-      },
-      true,
-    ),
-    appState: {
-      ...appState,
-      // update state only if we've set all select text elements to
-      // the same font size
-      currentItemFontSize:
-        newFontSizes.size === 1
-          ? [...newFontSizes][0]
-          : fallbackValue ?? appState.currentItemFontSize,
-    },
-    commitToHistory: true,
-  };
-};
-
 // -----------------------------------------------------------------------------
 
 export const actionChangeStrokeColor = register({
@@ -670,46 +620,6 @@ export const actionChangeFontSize = register({
   ),
 });
 
-export const actionDecreaseFontSize = register({
-  name: "decreaseFontSize",
-  trackEvent: false,
-  perform: (elements, appState, value, app) => {
-    return changeFontSize(elements, appState, app, (element) =>
-      Math.round(
-        // get previous value before relative increase (doesn't work fully
-        // due to rounding and float precision issues)
-        (1 / (1 + FONT_SIZE_RELATIVE_INCREASE_STEP)) * element.fontSize,
-      ),
-    );
-  },
-  keyTest: (event) => {
-    return (
-      event[KEYS.CTRL_OR_CMD] &&
-      event.shiftKey &&
-      // KEYS.COMMA needed for MacOS
-      (event.key === KEYS.CHEVRON_LEFT || event.key === KEYS.COMMA)
-    );
-  },
-});
-
-export const actionIncreaseFontSize = register({
-  name: "increaseFontSize",
-  trackEvent: false,
-  perform: (elements, appState, value, app) => {
-    return changeFontSize(elements, appState, app, (element) =>
-      Math.round(element.fontSize * (1 + FONT_SIZE_RELATIVE_INCREASE_STEP)),
-    );
-  },
-  keyTest: (event) => {
-    return (
-      event[KEYS.CTRL_OR_CMD] &&
-      event.shiftKey &&
-      // KEYS.PERIOD needed for MacOS
-      (event.key === KEYS.CHEVRON_RIGHT || event.key === KEYS.PERIOD)
-    );
-  },
-});
-
 export const actionChangeFontFamily = register({
   name: "changeFontFamily",
   trackEvent: false,

packages/excalidraw/actions/index.ts

@@ -20,6 +20,11 @@ export {
   actionChangeVerticalAlign,
 } from "./actionProperties";
 
+export {
+  actionDecreaseFontSize,
+  actionIncreaseFontSize,
+} from "./actionFontSize";
+
 export {
   actionChangeViewBackgroundColor,
   actionClearCanvas,