743169550e
Yjs UndoManager tracks waypoints, no-go areas, and notes. Only local mutations (origin "local") are undoable — remote changes from other users are not. - Keyboard shortcuts: Ctrl/Cmd+Z (undo), Ctrl/Cmd+Shift+Z/Y (redo) - Shortcuts suppressed in text inputs (browser-native undo there) - Undo/redo buttons in header with disabled state - stopCapturing on drag to isolate drag as one undo step - All mutation sites wrapped with "local" origin - 5 unit tests for UndoManager behavior - Archived undo-redo change Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
105 lines
3.1 KiB
TypeScript
105 lines
3.1 KiB
TypeScript
import { describe, it, expect } from "vitest";
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import * as Y from "yjs";
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describe("Y.UndoManager with tracked origins", () => {
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it("tracks mutations with 'local' origin", () => {
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const doc = new Y.Doc();
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const arr = doc.getArray("test");
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const um = new Y.UndoManager([arr], { trackedOrigins: new Set(["local"]) });
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doc.transact(() => arr.push(["a"]), "local");
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expect(arr.toArray()).toEqual(["a"]);
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expect(um.undoStack.length).toBe(1);
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um.undo();
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expect(arr.toArray()).toEqual([]);
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expect(um.redoStack.length).toBe(1);
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um.redo();
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expect(arr.toArray()).toEqual(["a"]);
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});
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it("does not track mutations without 'local' origin", () => {
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const doc = new Y.Doc();
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const arr = doc.getArray("test");
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const um = new Y.UndoManager([arr], { trackedOrigins: new Set(["local"]) });
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// No origin
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doc.transact(() => arr.push(["init"]));
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expect(arr.toArray()).toEqual(["init"]);
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expect(um.undoStack.length).toBe(0);
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// Different origin
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doc.transact(() => arr.push(["remote"]), "remote");
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expect(arr.toArray()).toEqual(["init", "remote"]);
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expect(um.undoStack.length).toBe(0);
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});
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it("groups rapid changes within captureTimeout", async () => {
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const doc = new Y.Doc();
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const arr = doc.getArray("test");
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const um = new Y.UndoManager([arr], {
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trackedOrigins: new Set(["local"]),
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captureTimeout: 100,
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});
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doc.transact(() => arr.push(["a"]), "local");
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doc.transact(() => arr.push(["b"]), "local");
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// Both within timeout — should be one undo step
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expect(um.undoStack.length).toBe(1);
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um.undo();
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expect(arr.toArray()).toEqual([]);
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});
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it("stopCapturing separates undo steps", () => {
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const doc = new Y.Doc();
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const arr = doc.getArray("test");
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const um = new Y.UndoManager([arr], {
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trackedOrigins: new Set(["local"]),
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captureTimeout: 10000,
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});
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doc.transact(() => arr.push(["a"]), "local");
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um.stopCapturing();
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doc.transact(() => arr.push(["b"]), "local");
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expect(um.undoStack.length).toBe(2);
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um.undo();
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expect(arr.toArray()).toEqual(["a"]);
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um.undo();
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expect(arr.toArray()).toEqual([]);
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});
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it("tracks multiple shared types", () => {
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const doc = new Y.Doc();
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const waypoints = doc.getArray("waypoints");
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const noGoAreas = doc.getArray("noGoAreas");
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const notes = doc.getText("notes");
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const um = new Y.UndoManager([waypoints, noGoAreas, notes], {
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trackedOrigins: new Set(["local"]),
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});
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doc.transact(() => waypoints.push(["wp1"]), "local");
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um.stopCapturing();
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doc.transact(() => notes.insert(0, "hello"), "local");
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um.stopCapturing();
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doc.transact(() => noGoAreas.push(["nogo1"]), "local");
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expect(um.undoStack.length).toBe(3);
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// Undo in reverse order
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um.undo(); // undo noGoAreas
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expect(noGoAreas.toArray()).toEqual([]);
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expect(notes.toString()).toBe("hello");
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um.undo(); // undo notes
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expect(notes.toString()).toBe("");
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expect(waypoints.toArray()).toEqual(["wp1"]);
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um.undo(); // undo waypoints
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expect(waypoints.toArray()).toEqual([]);
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});
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});
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