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+/**
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+ * @license Copyright (c) 2003-2018, CKSource - Frederico Knabben. All rights reserved.
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+ * For licensing, see LICENSE.md.
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+ */
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+
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+import ModelTestEditor from '@ckeditor/ckeditor5-core/tests/_utils/modeltesteditor';
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+import Batch from '@ckeditor/ckeditor5-engine/src/model/batch';
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+import UndoEditing from '../src/undoediting';
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+import { keyCodes } from '@ckeditor/ckeditor5-utils/src/keyboard';
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+
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+describe( 'UndoEditing', () => {
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+ let editor, undo, model, root;
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+
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+ beforeEach( () => {
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+ editor = new ModelTestEditor();
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+
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+ model = editor.model;
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+ root = model.document.getRoot();
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+
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+ undo = new UndoEditing( editor );
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+ undo.init();
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+ } );
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+
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+ afterEach( () => {
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+ undo.destroy();
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+ } );
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+
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+ it( 'should register undo command and redo command', () => {
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+ expect( editor.commands.get( 'undo' ) ).to.equal( undo._undoCommand );
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+ expect( editor.commands.get( 'redo' ) ).to.equal( undo._redoCommand );
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+ } );
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+
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+ it( 'should add a batch to undo command and clear redo stack, if it\'s type is "default"', () => {
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+ sinon.spy( undo._undoCommand, 'addBatch' );
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+ sinon.spy( undo._redoCommand, 'clearStack' );
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+
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+ expect( undo._undoCommand.addBatch.called ).to.be.false;
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+ expect( undo._redoCommand.clearStack.called ).to.be.false;
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+
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+ model.change( writer => {
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+ writer.insertText( 'foobar', root );
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+ } );
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+
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+ expect( undo._undoCommand.addBatch.calledOnce ).to.be.true;
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+ expect( undo._redoCommand.clearStack.calledOnce ).to.be.true;
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+ } );
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+
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+ it( 'should add each batch only once', () => {
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+ sinon.spy( undo._undoCommand, 'addBatch' );
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+
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+ model.change( writer => {
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+ writer.insertText( 'foobar', root );
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+ writer.insertText( 'foobar', root );
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+ } );
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+
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+ expect( undo._undoCommand.addBatch.calledOnce ).to.be.true;
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+ } );
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+
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+ it( 'should add a batch to undo command, if it\'s type is undo and it comes from redo command', () => {
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+ sinon.spy( undo._undoCommand, 'addBatch' );
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+ sinon.spy( undo._redoCommand, 'clearStack' );
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+
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+ const batch = new Batch();
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+
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+ undo._redoCommand._createdBatches.add( batch );
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+
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+ model.enqueueChange( batch, writer => {
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+ writer.insertText( 'foobar', root );
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+ } );
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+
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+ expect( undo._undoCommand.addBatch.calledOnce ).to.be.true;
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+ expect( undo._redoCommand.clearStack.called ).to.be.false;
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+ } );
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+
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+ it( 'should add a batch to redo command on undo revert event', () => {
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+ sinon.spy( undo._redoCommand, 'addBatch' );
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+ sinon.spy( undo._redoCommand, 'clearStack' );
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+
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+ undo._undoCommand.fire( 'revert', null, new Batch() );
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+
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+ expect( undo._redoCommand.addBatch.calledOnce ).to.be.true;
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+ expect( undo._redoCommand.clearStack.called ).to.be.false;
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+ } );
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+
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+ it( 'should not add a batch that has only non-document operations', () => {
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+ sinon.spy( undo._undoCommand, 'addBatch' );
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+
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+ model.change( writer => {
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+ const docFrag = writer.createDocumentFragment();
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+ const element = writer.createElement( 'paragraph' );
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+ writer.insert( element, docFrag, 0 );
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+ writer.insertText( 'foo', null, element, 0 );
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+ } );
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+
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+ expect( undo._undoCommand.addBatch.called ).to.be.false;
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+ } );
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+
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+ it( 'should add a batch that has both document and non-document operations', () => {
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+ sinon.spy( undo._undoCommand, 'addBatch' );
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+
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+ model.change( writer => {
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+ const element = writer.createElement( 'paragraph' );
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+ writer.insertText( 'foo', null, element, 0 );
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+ writer.insert( element, root, 0 );
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+ } );
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+
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+ expect( undo._undoCommand.addBatch.calledOnce ).to.be.true;
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+ } );
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+
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+ it( 'should set CTRL+Z keystroke', () => {
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+ const spy = sinon.stub( editor, 'execute' );
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+
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+ const wasHandled = editor.keystrokes.press( {
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+ keyCode: keyCodes.z,
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+ ctrlKey: true,
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+ preventDefault: sinon.spy(),
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+ stopPropagation: sinon.spy()
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+ } );
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+
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+ expect( wasHandled ).to.be.true;
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+ expect( spy.calledWithExactly( 'undo' ) ).to.be.true;
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+ } );
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+
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+ it( 'should set CTRL+Y keystroke', () => {
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+ const spy = sinon.stub( editor, 'execute' );
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+
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+ const wasHandled = editor.keystrokes.press( {
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+ keyCode: keyCodes.y,
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+ ctrlKey: true,
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+ preventDefault: sinon.spy(),
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+ stopPropagation: sinon.spy()
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+ } );
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+
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+ expect( wasHandled ).to.be.true;
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+ expect( spy.calledWithExactly( 'redo' ) ).to.be.true;
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+ } );
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+
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+ it( 'should set CTRL+SHIFT+Z keystroke', () => {
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+ const spy = sinon.stub( editor, 'execute' );
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+ const keyEventData = {
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+ keyCode: keyCodes.z,
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+ ctrlKey: true,
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+ shiftKey: true,
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+ preventDefault: sinon.spy(),
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+ stopPropagation: sinon.spy()
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+ };
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+
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+ const wasHandled = editor.keystrokes.press( keyEventData );
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+
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+ expect( wasHandled ).to.be.true;
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+ expect( spy.calledWithExactly( 'redo' ) ).to.be.true;
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+ expect( keyEventData.preventDefault.calledOnce ).to.be.true;
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+ } );
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+} );
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