/** * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved. * For licensing, see LICENSE.md. */ import ModelTestEditor from '@ckeditor/ckeditor5-core/tests/_utils/modeltesteditor'; import Range from '@ckeditor/ckeditor5-engine/src/model/range'; import Position from '@ckeditor/ckeditor5-engine/src/model/position'; import Element from '@ckeditor/ckeditor5-engine/src/model/element'; import UndoEngine from '../src/undoengine'; import DeleteCommand from '@ckeditor/ckeditor5-typing/src/deletecommand'; import InputCommand from '@ckeditor/ckeditor5-typing/src/inputcommand'; import EnterCommand from '@ckeditor/ckeditor5-enter/src/entercommand'; import AttributeCommand from '@ckeditor/ckeditor5-basic-styles/src/attributecommand'; import { setData, getData } from '@ckeditor/ckeditor5-engine/src/dev-utils/model'; describe( 'UndoEngine integration', () => { let editor, doc, root; beforeEach( () => { return ModelTestEditor.create( { plugins: [ UndoEngine ] } ) .then( newEditor => { editor = newEditor; editor.commands.add( 'delete', new DeleteCommand( editor, 'backward' ) ); editor.commands.add( 'forwardDelete', new DeleteCommand( editor, 'forward' ) ); editor.commands.add( 'enter', new EnterCommand( editor ) ); editor.commands.add( 'input', new InputCommand( editor, 5 ) ); editor.commands.add( 'bold', new AttributeCommand( editor, 'bold' ) ); doc = editor.document; doc.schema.registerItem( 'p', '$block' ); doc.schema.registerItem( 'h1', '$block' ); doc.schema.registerItem( 'h2', '$block' ); doc.schema.allow( { name: '$inline', attributes: 'bold', inside: '$block' } ); doc.schema.registerItem( 'div', '$block' ); root = doc.getRoot(); } ); } ); function setSelection( pathA, pathB ) { doc.selection.setRanges( [ new Range( new Position( root, pathA ), new Position( root, pathB ) ) ] ); } function input( input ) { setData( doc, input ); } function output( output ) { expect( getData( doc ) ).to.equal( output ); } function undoDisabled() { expect( editor.commands.get( 'undo' ).isEnabled ).to.be.false; } function redoDisabled() { expect( editor.commands.get( 'redo' ).isEnabled ).to.be.false; } describe( 'adding and removing content', () => { it( 'add and undo', () => { input( '
fo[]o
bar
' ); doc.batch().insert( doc.selection.getFirstPosition(), 'zzz' ); output( 'fozzz[]o
bar
' ); editor.execute( 'undo' ); output( 'fo[]o
bar
' ); undoDisabled(); } ); it( 'multiple adding and undo', () => { input( 'fo[]o
bar
' ); doc.batch() .insert( doc.selection.getFirstPosition(), 'zzz' ) .insert( new Position( root, [ 1, 0 ] ), 'xxx' ); output( 'fozzz[]o
xxxbar
' ); setSelection( [ 1, 0 ], [ 1, 0 ] ); doc.batch().insert( doc.selection.getFirstPosition(), 'yyy' ); output( 'fozzzo
yyy[]xxxbar
' ); editor.execute( 'undo' ); output( 'fozzzo
[]xxxbar
' ); editor.execute( 'undo' ); output( 'fo[]o
bar
' ); undoDisabled(); } ); it( 'multiple adding mixed with undo', () => { input( 'fo[]o
bar
' ); doc.batch().insert( doc.selection.getFirstPosition(), 'zzz' ); output( 'fozzz[]o
bar
' ); setSelection( [ 1, 0 ], [ 1, 0 ] ); doc.batch().insert( doc.selection.getFirstPosition(), 'yyy' ); output( 'fozzzo
yyy[]bar
' ); editor.execute( 'undo' ); output( 'fozzzo
[]bar
' ); setSelection( [ 0, 0 ], [ 0, 0 ] ); doc.batch().insert( doc.selection.getFirstPosition(), 'xxx' ); output( 'xxx[]fozzzo
bar
' ); editor.execute( 'undo' ); output( '[]fozzzo
bar
' ); editor.execute( 'undo' ); output( 'fo[]o
bar
' ); undoDisabled(); } ); it( 'multiple remove and undo', () => { input( '[]foo
bar
' ); doc.batch().remove( Range.createFromPositionAndShift( doc.selection.getFirstPosition(), 2 ) ); output( '[]o
bar
' ); setSelection( [ 1, 1 ], [ 1, 1 ] ); doc.batch().remove( Range.createFromPositionAndShift( doc.selection.getFirstPosition(), 2 ) ); output( 'o
b[]
' ); editor.execute( 'undo' ); // Here is an edge case that selection could be before or after `ar`. output( 'o
bar[]
' ); editor.execute( 'undo' ); // As above. output( 'fo[]o
bar
' ); undoDisabled(); } ); it( 'add and remove different parts and undo', () => { input( 'fo[]o
bar
' ); doc.batch().insert( doc.selection.getFirstPosition(), 'zzz' ); output( 'fozzz[]o
bar
' ); setSelection( [ 1, 2 ], [ 1, 2 ] ); doc.batch().remove( Range.createFromPositionAndShift( new Position( root, [ 1, 1 ] ), 1 ) ); output( 'fozzzo
b[]r
' ); editor.execute( 'undo' ); output( 'fozzzo
ba[]r
' ); editor.execute( 'undo' ); output( 'fo[]o
bar
' ); undoDisabled(); } ); it( 'add and remove same part and undo', () => { input( 'fo[]o
bar
' ); doc.batch().insert( doc.selection.getFirstPosition(), 'zzz' ); output( 'fozzz[]o
bar
' ); doc.batch().remove( Range.createFromPositionAndShift( new Position( root, [ 0, 2 ] ), 3 ) ); output( 'fo[]o
bar
' ); editor.execute( 'undo' ); output( 'fozzz[]o
bar
' ); editor.execute( 'undo' ); output( 'fo[]o
bar
' ); undoDisabled(); } ); } ); describe( 'moving', () => { it( 'move same content twice then undo', () => { input( 'f[o]z
bar
' ); doc.batch().move( doc.selection.getFirstRange(), new Position( root, [ 1, 0 ] ) ); output( 'fz
[o]bar
' ); doc.batch().move( doc.selection.getFirstRange(), new Position( root, [ 0, 2 ] ) ); output( 'fz[o]
bar
' ); editor.execute( 'undo' ); output( 'fz
[o]bar
' ); editor.execute( 'undo' ); output( 'f[o]z
bar
' ); undoDisabled(); } ); it( 'move content and new parent then undo', () => { input( 'f[o]z
bar
' ); doc.batch().move( doc.selection.getFirstRange(), new Position( root, [ 1, 0 ] ) ); output( 'fz
[o]bar
' ); setSelection( [ 1 ], [ 2 ] ); doc.batch().move( doc.selection.getFirstRange(), new Position( root, [ 0 ] ) ); output( '[obar
]fz
' ); editor.execute( 'undo' ); output( 'fz
[obar
]' ); editor.execute( 'undo' ); output( 'f[o]z
bar
' ); undoDisabled(); } ); } ); describe( 'attributes with other', () => { it( 'attributes then insert inside then undo', () => { input( 'fo[ob]ar
' ); doc.batch().setAttribute( doc.selection.getFirstRange(), 'bold', true ); output( 'fo[<$text bold="true">ob$text>]ar
' ); setSelection( [ 0, 3 ], [ 0, 3 ] ); doc.batch().insert( doc.selection.getFirstPosition(), 'zzz' ); output( 'fo<$text bold="true">o$text>zzz<$text bold="true">[]b$text>ar
' ); expect( doc.selection.getAttribute( 'bold' ) ).to.true; editor.execute( 'undo' ); output( 'fo<$text bold="true">o[]b$text>ar
' ); expect( doc.selection.getAttribute( 'bold' ) ).to.true; editor.execute( 'undo' ); output( 'fo[ob]ar
' ); undoDisabled(); } ); } ); describe( 'wrapping, unwrapping, merging, splitting', () => { it( 'wrap and undo', () => { doc.schema.allow( { name: '$text', inside: '$root' } ); input( 'fo[zb]ar' ); doc.batch().wrap( doc.selection.getFirstRange(), 'p' ); output( 'fo[zb]
ar' ); editor.execute( 'undo' ); output( 'fo[zb]ar' ); undoDisabled(); } ); it( 'wrap, move and undo', () => { doc.schema.allow( { name: '$text', inside: '$root' } ); input( 'fo[zb]ar' ); doc.batch().wrap( doc.selection.getFirstRange(), 'p' ); // Would be better if selection was inside P. output( 'fo[zb]
ar' ); setSelection( [ 2, 0 ], [ 2, 1 ] ); doc.batch().move( doc.selection.getFirstRange(), new Position( root, [ 0 ] ) ); output( '[z]fob
ar' ); editor.execute( 'undo' ); output( 'fo[z]b
ar' ); editor.execute( 'undo' ); output( 'fo[zb]ar' ); undoDisabled(); } ); it( 'unwrap and undo', () => { input( 'foo[]bar
' ); doc.batch().unwrap( doc.selection.getFirstPosition().parent ); output( 'foo[]bar' ); editor.execute( 'undo' ); output( 'foo[]bar
' ); undoDisabled(); } ); it( 'merge and undo', () => { input( 'foo
[]bar
' ); doc.batch().merge( new Position( root, [ 1 ] ) ); // Because selection is stuck withit ends up in graveyard. We have to manually move it to correct node. setSelection( [ 0, 3 ], [ 0, 3 ] ); output( '
foo[]bar
' ); editor.execute( 'undo' ); output( 'foo
bar[]
' ); undoDisabled(); } ); it( 'split and undo', () => { input( 'foo[]bar
' ); doc.batch().split( doc.selection.getFirstPosition() ); // Because selection is stuck withit ends up in wrong node. We have to manually move it to correct node. setSelection( [ 1, 0 ], [ 1, 0 ] ); output( '
foo
[]bar
' ); editor.execute( 'undo' ); output( 'foobar[]
' ); undoDisabled(); } ); } ); // Restoring selection in those examples may be completely off. describe( 'multiple enters, deletes and typing', () => { function split( path ) { setSelection( path.slice(), path.slice() ); editor.execute( 'enter' ); } function merge( path ) { const selPath = path.slice(); selPath.push( 0 ); setSelection( selPath, selPath.slice() ); editor.execute( 'delete' ); } function type( path, text ) { setSelection( path.slice(), path.slice() ); editor.execute( 'input', { text } ); } function remove( path ) { setSelection( path.slice(), path.slice() ); editor.execute( 'delete' ); } it( 'split, split, split', () => { input( '12345678
' ); split( [ 0, 3 ] ); output( '123
[]45678
' ); split( [ 1, 4 ] ); output( '123
4567
[]8
' ); split( [ 1, 2 ] ); output( '123
45
[]67
8
' ); editor.execute( 'undo' ); output( '123
4567[]
8
' ); editor.execute( 'undo' ); output( '123
45678[]
' ); editor.execute( 'undo' ); output( '12345678[]
' ); undoDisabled(); editor.execute( 'redo' ); output( '123[]
45678
' ); editor.execute( 'redo' ); output( '123
4567[]
8
' ); editor.execute( 'redo' ); output( '123
45[]
67
8
' ); redoDisabled(); } ); it( 'merge, merge, merge', () => { input( '123
45
67
8
' ); merge( [ 1 ] ); output( '123[]45
67
8
' ); merge( [ 2 ] ); output( '12345
67[]8
' ); merge( [ 1 ] ); output( '12345[]678
' ); editor.execute( 'undo' ); output( '12345
678[]
' ); editor.execute( 'undo' ); output( '12345
67
8[]
' ); editor.execute( 'undo' ); output( '123
45[]
67
8
' ); undoDisabled(); editor.execute( 'redo' ); output( '12345[]
67
8
' ); editor.execute( 'redo' ); output( '12345
678[]
' ); editor.execute( 'redo' ); output( '12345678[]
' ); redoDisabled(); } ); it( 'split, merge, split, merge (same position)', () => { input( '12345678
' ); split( [ 0, 3 ] ); output( '123
[]45678
' ); merge( [ 1 ] ); output( '123[]45678
' ); split( [ 0, 3 ] ); output( '123
[]45678
' ); merge( [ 1 ] ); output( '123[]45678
' ); editor.execute( 'undo' ); output( '123
45678[]
' ); editor.execute( 'undo' ); output( '12345678[]
' ); editor.execute( 'undo' ); output( '123
45678[]
' ); editor.execute( 'undo' ); output( '12345678[]
' ); undoDisabled(); editor.execute( 'redo' ); output( '123[]
45678
' ); editor.execute( 'redo' ); output( '12345678[]
' ); editor.execute( 'redo' ); output( '123[]
45678
' ); editor.execute( 'redo' ); output( '12345678[]
' ); redoDisabled(); } ); it( 'split, split, split, merge, merge, merge', () => { input( '12345678
' ); split( [ 0, 3 ] ); output( '123
[]45678
' ); split( [ 1, 4 ] ); output( '123
4567
[]8
' ); split( [ 1, 2 ] ); output( '123
45
[]67
8
' ); merge( [ 1 ] ); output( '123[]45
67
8
' ); merge( [ 2 ] ); output( '12345
67[]8
' ); merge( [ 1 ] ); output( '12345[]678
' ); editor.execute( 'undo' ); output( '12345
678[]
' ); editor.execute( 'undo' ); output( '12345
67
8[]
' ); editor.execute( 'undo' ); output( '123
45[]
67
8
' ); editor.execute( 'undo' ); output( '123
4567[]
8
' ); editor.execute( 'undo' ); output( '123
45678[]
' ); editor.execute( 'undo' ); output( '12345678[]
' ); undoDisabled(); editor.execute( 'redo' ); output( '123[]
45678
' ); editor.execute( 'redo' ); output( '123
4567[]
8
' ); editor.execute( 'redo' ); output( '123
45[]
67
8
' ); editor.execute( 'redo' ); output( '12345[]
67
8
' ); editor.execute( 'redo' ); output( '12345
678[]
' ); editor.execute( 'redo' ); output( '12345678[]
' ); redoDisabled(); } ); it( 'split, split, merge, split, merge (different order)', () => { input( '12345678
' ); split( [ 0, 3 ] ); output( '123
[]45678
' ); split( [ 1, 2 ] ); output( '123
45
[]678
' ); merge( [ 1 ] ); output( '123[]45
678
' ); split( [ 1, 1 ] ); output( '12345
6
[]78
' ); merge( [ 1 ] ); output( '12345[]6
78
' ); editor.execute( 'undo' ); output( '12345
6[]
78
' ); editor.execute( 'undo' ); output( '12345
678[]
' ); editor.execute( 'undo' ); output( '123
45[]
678
' ); editor.execute( 'undo' ); output( '123
45678[]
' ); editor.execute( 'undo' ); output( '12345678[]
' ); undoDisabled(); editor.execute( 'redo' ); output( '123[]
45678
' ); editor.execute( 'redo' ); output( '123
45[]
678
' ); editor.execute( 'redo' ); output( '12345[]
678
' ); editor.execute( 'redo' ); output( '12345
6[]
78
' ); editor.execute( 'redo' ); output( '123456[]
78
' ); redoDisabled(); } ); it( 'split, remove, split, merge, merge', () => { input( '12345678
' ); split( [ 0, 3 ] ); output( '123
[]45678
' ); remove( [ 1, 4 ] ); remove( [ 1, 3 ] ); output( '123
45[]8
' ); split( [ 1, 1 ] ); output( '123
4
[]58
' ); merge( [ 1 ] ); output( '123[]4
58
' ); merge( [ 1 ] ); output( '1234[]58
' ); editor.execute( 'undo' ); output( '1234
58[]
' ); editor.execute( 'undo' ); output( '123
4[]
58
' ); editor.execute( 'undo' ); output( '123
458[]
' ); editor.execute( 'undo' ); output( '123
4567[]8
' ); editor.execute( 'undo' ); output( '12345678[]
' ); undoDisabled(); editor.execute( 'redo' ); output( '123[]
45678
' ); editor.execute( 'redo' ); output( '123
458[]
' ); editor.execute( 'redo' ); output( '123
4[]
58
' ); editor.execute( 'redo' ); output( '1234[]
58
' ); editor.execute( 'redo' ); output( '123458[]
' ); redoDisabled(); } ); it( 'split, typing, split, merge, merge', () => { input( '12345678
' ); split( [ 0, 3 ] ); output( '123
[]45678
' ); type( [ 1, 4 ], 'x' ); type( [ 1, 5 ], 'y' ); output( '123
4567xy[]8
' ); split( [ 1, 2 ] ); output( '123
45
[]67xy8
' ); merge( [ 1 ] ); output( '123[]45
67xy8
' ); merge( [ 1 ] ); output( '12345[]67xy8
' ); editor.execute( 'undo' ); output( '12345
67xy8[]
' ); editor.execute( 'undo' ); output( '123
45[]
67xy8
' ); editor.execute( 'undo' ); output( '123
4567xy8[]
' ); editor.execute( 'undo' ); output( '123
4567[]8
' ); editor.execute( 'undo' ); output( '12345678[]
' ); undoDisabled(); editor.execute( 'redo' ); output( '123[]
45678
' ); editor.execute( 'redo' ); output( '123
4567xy8[]
' ); editor.execute( 'redo' ); output( '123
45[]
67xy8
' ); editor.execute( 'redo' ); output( '12345[]
67xy8
' ); editor.execute( 'redo' ); output( '1234567xy8[]
' ); redoDisabled(); } ); } ); describe( 'other reported cases', () => { // ckeditor5-engine#t/1051 it( 'rename leaks to other elements on undo #1', () => { input( 'Bar
' ); doc.batch().rename( root.getChild( 0 ), 'p' ); output( '[]Foo
Bar
' ); doc.batch().split( Position.createAt( root.getChild( 0 ), 1 ) ); output( '[]F
oo
Bar
' ); doc.batch().merge( Position.createAt( root, 2 ) ); output( '[]F
ooBar
' ); editor.execute( 'undo' ); output( '[]F
oo
Bar
' ); editor.execute( 'undo' ); output( '[]Foo
Bar
' ); editor.execute( 'undo' ); output( 'Bar
' ); } ); // Similar issue that bases on the same error as above, however here we first merge (above we first split). it( 'rename leaks to other elements on undo #2', () => { input( 'Bar
' ); doc.batch().rename( root.getChild( 0 ), 'h2' ); output( 'Bar
' ); doc.batch().merge( Position.createAt( root, 1 ) ); output( 'Bar
' ); editor.execute( 'undo' ); output( 'Bar
' ); } ); // Reverse issue, this time first operation is merge and then rename. it( 'merge, rename, undo, undo is correct', () => { input( 'Bar
' ); doc.batch().merge( Position.createAt( root, 1 ) ); output( 'Bar
' ); } ); // ckeditor5-engine#t/1053 it( 'wrap, split, undo, undo is correct', () => { input( '[]Foo
Bar
' ); doc.batch().wrap( Range.createIn( root ), 'div' ); output( '[]Foo
Bar
[]F
oo
Bar
[]Foo
Bar
[]Foo
Bar
' ); } ); // ckeditor5-engine#t/1055 it( 'selection attribute setting: split, bold, merge, undo, undo, undo', () => { input( 'Foo[]
Bar
' ); editor.execute( 'enter' ); output( 'Foo
[]
Bar
' ); editor.execute( 'bold' ); output( 'Foo
<$text bold="true">[]$text>
Bar
' ); editor.execute( 'forwardDelete' ); output( 'Foo
[]Bar
' ); editor.execute( 'undo' ); output( 'Foo
<$text bold="true">[]$text>
Bar
' ); editor.execute( 'undo' ); output( 'Foo
[]
Bar
' ); editor.execute( 'undo' ); output( 'Foo[]
Bar
' ); } ); } ); describe( 'other edge cases', () => { it( 'deleteContent between two nodes', () => { input( 'fo[o
b]ar
' ); editor.data.deleteContent( doc.selection, doc.batch() ); output( 'fo[]ar
' ); editor.execute( 'undo' ); output( 'fo[o
b]ar
' ); } ); // Related to ckeditor5-engine#891 and ckeditor5-list#51. it( 'change attribute of removed node then undo and redo', () => { const gy = doc.graveyard; const batch = doc.batch(); const p = new Element( 'p' ); root.appendChildren( p ); batch.remove( p ); batch.setAttribute( p, 'bold', true ); editor.execute( 'undo' ); editor.execute( 'redo' ); expect( p.root ).to.equal( gy ); expect( p.getAttribute( 'bold' ) ).to.be.true; } ); // Related to ckeditor5-engine#891. it( 'change attribute of removed node then undo and redo', () => { const gy = doc.graveyard; const batch = doc.batch(); const p1 = new Element( 'p' ); const p2 = new Element( 'p' ); const p3 = new Element( 'p' ); root.appendChildren( [ p1, p2 ] ); batch.remove( p1 ).remove( p2 ).insert( new Position( root, [ 0 ] ), p3 ); editor.execute( 'undo' ); editor.execute( 'redo' ); expect( p1.root ).to.equal( gy ); expect( p2.root ).to.equal( gy ); expect( p3.root ).to.equal( root ); } ); } ); } );