95 lines
3.0 KiB
TypeScript
95 lines
3.0 KiB
TypeScript
import { Action, ActionResult, StoreAction } from "./types";
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import { UndoIcon, RedoIcon } from "../components/icons";
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import { ToolButton } from "../components/ToolButton";
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import { t } from "../i18n";
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import { History } from "../history";
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import { AppState } from "../types";
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import { KEYS } from "../keys";
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import { arrayToMap } from "../utils";
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import { isWindows } from "../constants";
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import { ExcalidrawElement } from "../element/types";
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import { fixBindingsAfterDeletion } from "../element/binding";
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import { orderByFractionalIndex } from "../fractionalIndex";
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const writeData = (
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appState: Readonly<AppState>,
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updater: () => [Map<string, ExcalidrawElement>, AppState] | void,
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): ActionResult => {
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if (
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!appState.multiElement &&
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!appState.resizingElement &&
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!appState.editingElement &&
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!appState.draggingElement
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) {
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const result = updater();
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if (!result) {
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return { storeAction: StoreAction.NONE };
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}
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// TODO_UNDO: worth detecting z-index deltas or do we just order based on fractional indices?
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const [nextElementsMap, nextAppState] = result;
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const nextElements = orderByFractionalIndex(
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Array.from(nextElementsMap.values()),
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);
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// TODO_UNDO: these are all deleted elements, but ideally we should get just those that were delted at this moment
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const deletedElements = nextElements.filter((element) => element.isDeleted);
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// TODO_UNDO: this doesn't really work for bound text
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fixBindingsAfterDeletion(nextElements, deletedElements);
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return {
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appState: nextAppState,
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elements: nextElements,
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storeAction: StoreAction.UPDATE,
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};
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}
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return { storeAction: StoreAction.NONE };
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};
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type ActionCreator = (history: History) => Action;
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export const createUndoAction: ActionCreator = (history) => ({
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name: "undo",
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trackEvent: { category: "history" },
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perform: (elements, appState) =>
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writeData(appState, () => history.undo(arrayToMap(elements), appState)),
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keyTest: (event) =>
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event[KEYS.CTRL_OR_CMD] &&
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event.key.toLowerCase() === KEYS.Z &&
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!event.shiftKey,
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PanelComponent: ({ updateData, data }) => (
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<ToolButton
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type="button"
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icon={UndoIcon}
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aria-label={t("buttons.undo")}
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onClick={updateData}
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size={data?.size || "medium"}
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disabled={history.isUndoStackEmpty}
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/>
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),
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});
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export const createRedoAction: ActionCreator = (history) => ({
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name: "redo",
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trackEvent: { category: "history" },
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perform: (elements, appState) =>
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writeData(appState, () => history.redo(arrayToMap(elements), appState)),
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keyTest: (event) =>
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(event[KEYS.CTRL_OR_CMD] &&
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event.shiftKey &&
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event.key.toLowerCase() === KEYS.Z) ||
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(isWindows && event.ctrlKey && !event.shiftKey && event.key === KEYS.Y),
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PanelComponent: ({ updateData, data }) => (
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<ToolButton
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type="button"
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icon={RedoIcon}
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aria-label={t("buttons.redo")}
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onClick={updateData}
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size={data?.size || "medium"}
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disabled={history.isRedoStackEmpty}
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/>
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),
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});
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