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- /**
- * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
- */
- import Position from '../../src/view/position';
- import Node from '../../src/view/node';
- import Element from '../../src/view/element';
- import DocumentFragment from '../../src/view/documentfragment';
- import EditableElement from '../../src/view/editableelement';
- import Document from '../../src/view/document';
- import Text from '../../src/view/text';
- import TextProxy from '../../src/view/textproxy';
- import { parse, stringify } from '../../src/dev-utils/view';
- import TreeWalker from '../../src/view/treewalker';
- import createViewRoot from './_utils/createroot';
- import AttributeElement from '../../src/view/attributeelement';
- import ContainerElement from '../../src/view/containerelement';
- import { expectToThrowCKEditorError } from '@ckeditor/ckeditor5-utils/tests/_utils/utils';
- import { StylesProcessor } from '../../src/view/stylesmap';
- describe( 'Position', () => {
- const parentMock = {};
- let document;
- before( () => {
- document = new Document( new StylesProcessor() );
- } );
- describe( 'constructor()', () => {
- it( 'should create element without attributes', () => {
- const position = new Position( parentMock, 5 );
- expect( position ).to.have.property( 'parent' ).that.equals( parentMock );
- expect( position ).to.have.property( 'offset' ).that.equals( 5 );
- } );
- } );
- describe( 'is()', () => {
- let position;
- beforeEach( () => {
- position = new Position( parentMock, 5 );
- } );
- it( 'should return true for "position"', () => {
- expect( position.is( 'position' ) ).to.be.true;
- expect( position.is( 'view:position' ) ).to.be.true;
- } );
- it( 'should return false for other accept values', () => {
- expect( position.is( 'rootElement' ) ).to.be.false;
- expect( position.is( 'containerElement' ) ).to.be.false;
- expect( position.is( 'element' ) ).to.be.false;
- expect( position.is( 'p' ) ).to.be.false;
- expect( position.is( 'text' ) ).to.be.false;
- expect( position.is( 'textProxy' ) ).to.be.false;
- expect( position.is( 'attributeElement' ) ).to.be.false;
- expect( position.is( 'uiElement' ) ).to.be.false;
- expect( position.is( 'emptyElement' ) ).to.be.false;
- expect( position.is( 'documentFragment' ) ).to.be.false;
- expect( position.is( 'model:position' ) ).to.be.false;
- } );
- } );
- describe( 'nodeBefore', () => {
- it( 'should equal to node that is before position', () => {
- const b1 = new Element( document, 'b' );
- const el = new Element( document, 'p', null, [ b1 ] );
- const position = new Position( el, 1 );
- expect( position.nodeBefore ).to.equal( b1 );
- } );
- it( 'should equal null if there is no node before', () => {
- const b1 = new Element( document, 'b' );
- const el = new Element( document, 'p', null, [ b1 ] );
- const position = new Position( el, 0 );
- expect( position.nodeBefore ).to.be.null;
- } );
- it( 'should equal null if position is located inside text node', () => {
- const text = new Text( document, 'foobar' );
- const position = new Position( text, 3 );
- expect( position.nodeBefore ).to.be.null;
- } );
- } );
- describe( 'nodeAfter', () => {
- it( 'should equal to node that is after position', () => {
- const b1 = new Element( document, 'b' );
- const el = new Element( document, 'p', null, [ b1 ] );
- const position = new Position( el, 0 );
- expect( position.nodeAfter ).to.equal( b1 );
- } );
- it( 'should equal null if there is no node before', () => {
- const b1 = new Element( document, 'b' );
- const el = new Element( document, 'p', null, [ b1 ] );
- const position = new Position( el, 1 );
- expect( position.nodeAfter ).to.be.null;
- } );
- it( 'should equal null if position is located inside text node', () => {
- const text = new Text( document, 'foobar' );
- const position = new Position( text, 3 );
- expect( position.nodeAfter ).to.be.null;
- } );
- } );
- describe( 'getShiftedBy', () => {
- it( 'returns new instance with shifted offset', () => {
- const position = new Position( parentMock, 10 );
- const shifted = position.getShiftedBy( 12 );
- expect( shifted.offset ).to.equal( 22 );
- } );
- it( 'accepts negative values', () => {
- const position = new Position( parentMock, 10 );
- const shifted = position.getShiftedBy( -5 );
- expect( shifted.offset ).to.equal( 5 );
- } );
- it( 'prevents offset to be a negative value', () => {
- const position = new Position( parentMock, 10 );
- const shifted = position.getShiftedBy( -20 );
- expect( shifted.offset ).to.equal( 0 );
- } );
- } );
- describe( 'getLastMatchingPosition', () => {
- it( 'should skip forward', () => {
- const { view, selection } = parse( '<p><b>{}foo</b></p>' );
- let position = selection.getFirstPosition();
- position = position.getLastMatchingPosition( value => value.type == 'text' );
- expect( stringify( view, position ) ).to.equal( '<p><b>foo[]</b></p>' );
- } );
- it( 'should skip backward', () => {
- const { view, selection } = parse( '<p><b>foo{}</b></p>' );
- let position = selection.getFirstPosition();
- position = position.getLastMatchingPosition( value => value.type == 'text', { direction: 'backward' } );
- expect( stringify( view, position ) ).to.equal( '<p><b>[]foo</b></p>' );
- } );
- } );
- describe( 'getRoot', () => {
- it( 'should return it\'s parent root', () => {
- const foo = new Text( document, 'foo' );
- const docFrag = new DocumentFragment( document, foo );
- expect( new Position( foo, 1 ).root ).to.equal( docFrag );
- const bar = new Text( document, 'bar' );
- const p = new Element( document, 'p', null, bar );
- expect( new Position( bar, 2 ).root ).to.equal( p );
- expect( new Position( p, 0 ).root ).to.equal( p );
- } );
- } );
- describe( 'getAncestors', () => {
- it( 'should return it\'s parent and all it\'s ancestors', () => {
- const foo = new Text( document, 'foo' );
- const p = new Element( document, 'p', null, foo );
- const div = new Element( document, 'div', null, p );
- const docFrag = new DocumentFragment( document, div );
- expect( new Position( foo, 1 ).getAncestors() ).to.deep.equal( [ docFrag, div, p, foo ] );
- } );
- it( 'should return DocumentFragment if position is directly in document fragment', () => {
- const docFrag = new DocumentFragment( document );
- expect( new Position( docFrag, 0 ).getAncestors() ).to.deep.equal( [ docFrag ] );
- } );
- } );
- describe( 'isEqual', () => {
- it( 'should return true for same object', () => {
- const position = new Position( {}, 12 );
- expect( position.isEqual( position ) ).to.be.true;
- } );
- it( 'should return true for positions with same parent and offset', () => {
- const parentMock = {};
- const position1 = new Position( parentMock, 12 );
- const position2 = new Position( parentMock, 12 );
- expect( position1.isEqual( position2 ) ).to.be.true;
- } );
- it( 'should return false for positions with different parents', () => {
- const position1 = new Position( {}, 12 );
- const position2 = new Position( {}, 12 );
- expect( position1.isEqual( position2 ) ).to.be.false;
- } );
- it( 'should return false for positions with different positions', () => {
- const parentMock = {};
- const position1 = new Position( parentMock, 12 );
- const position2 = new Position( parentMock, 2 );
- expect( position1.isEqual( position2 ) ).to.be.false;
- } );
- } );
- describe( 'isBefore', () => {
- it( 'should return false for same positions', () => {
- const node = new Node();
- const position1 = new Position( node, 10 );
- const position2 = new Position( node, 10 );
- expect( position1.isBefore( position1 ) ).to.be.false;
- expect( position1.isBefore( position2 ) ).to.be.false;
- expect( position2.isBefore( position1 ) ).to.be.false;
- } );
- it( 'should return false if no common ancestor is found', () => {
- const t1 = new Text( document, 'foo' );
- const t2 = new Text( document, 'bar' );
- const e1 = new Element( document, 'p', null, [ t1 ] );
- const e2 = new Element( document, 'p', null, [ t2 ] );
- const position1 = new Position( e1, 0 );
- const position2 = new Position( e2, 1 );
- expect( position1.isBefore( position2 ) );
- expect( position2.isBefore( position1 ) );
- } );
- it( 'should return true if position is before in same node', () => {
- const node = new Node();
- const p1 = new Position( node, 10 );
- const p2 = new Position( node, 5 );
- expect( p2.isBefore( p1 ) ).to.be.true;
- expect( p1.isBefore( p2 ) ).to.be.false;
- } );
- it( 'should compare positions that have common parent', () => {
- const t1 = new Text( document, 'foo' );
- const t2 = new Text( document, 'bar' );
- const root = new Element( document, 'p', null, [ t1, t2 ] );
- const position1 = new Position( t1, 2 );
- const position2 = new Position( t2, 0 );
- const position3 = new Position( root, 0 );
- const position4 = new Position( root, 2 );
- const position5 = new Position( t1, 0 );
- const position6 = new Position( root, 1 );
- expect( position1.isBefore( position2 ) ).to.be.true;
- expect( position2.isBefore( position1 ) ).to.be.false;
- expect( position3.isBefore( position1 ) ).to.be.true;
- expect( position3.isBefore( position2 ) ).to.be.true;
- expect( position1.isBefore( position3 ) ).to.be.false;
- expect( position2.isBefore( position3 ) ).to.be.false;
- expect( position4.isBefore( position1 ) ).to.be.false;
- expect( position4.isBefore( position3 ) ).to.be.false;
- expect( position3.isBefore( position4 ) ).to.be.true;
- expect( position3.isBefore( position5 ) ).to.be.true;
- expect( position6.isBefore( position2 ) ).to.be.true;
- expect( position1.isBefore( position6 ) ).to.be.true;
- } );
- } );
- describe( 'isAfter', () => {
- it( 'should return false for same positions', () => {
- const node = new Node();
- const position1 = new Position( node, 10 );
- const position2 = new Position( node, 10 );
- expect( position1.isAfter( position1 ) ).to.be.false;
- expect( position1.isAfter( position2 ) ).to.be.false;
- expect( position2.isAfter( position1 ) ).to.be.false;
- } );
- it( 'should return false if no common ancestor is found', () => {
- const t1 = new Text( document, 'foo' );
- const t2 = new Text( document, 'bar' );
- const e1 = new Element( document, 'p', null, [ t1 ] );
- const e2 = new Element( document, 'p', null, [ t2 ] );
- const position1 = new Position( e1, 0 );
- const position2 = new Position( e2, 1 );
- expect( position1.isAfter( position2 ) );
- expect( position2.isAfter( position1 ) );
- } );
- it( 'should return true if position is after in same node', () => {
- const node = new Node();
- const p1 = new Position( node, 10 );
- const p2 = new Position( node, 5 );
- expect( p2.isAfter( p1 ) ).to.be.false;
- expect( p1.isAfter( p2 ) ).to.be.true;
- } );
- it( 'should compare positions that have common parent', () => {
- const t1 = new Text( document, 'foo' );
- const t2 = new Text( document, 'bar' );
- const root = new Element( document, 'p', null, [ t1, t2 ] );
- const position1 = new Position( t1, 2 );
- const position2 = new Position( t2, 0 );
- const position3 = new Position( root, 0 );
- const position4 = new Position( root, 2 );
- const position5 = new Position( t1, 0 );
- const position6 = new Position( root, 1 );
- expect( position1.isAfter( position2 ) ).to.be.false;
- expect( position2.isAfter( position1 ) ).to.be.true;
- expect( position3.isAfter( position1 ) ).to.be.false;
- expect( position3.isAfter( position2 ) ).to.be.false;
- expect( position1.isAfter( position3 ) ).to.be.true;
- expect( position2.isAfter( position3 ) ).to.be.true;
- expect( position4.isAfter( position1 ) ).to.be.true;
- expect( position4.isAfter( position3 ) ).to.be.true;
- expect( position3.isAfter( position4 ) ).to.be.false;
- expect( position5.isAfter( position3 ) ).to.be.true;
- expect( position2.isAfter( position6 ) ).to.be.true;
- } );
- } );
- describe( 'isAtStart', () => {
- it( 'should return true if it is at the start of it\'s parent', () => {
- const foo = new Text( document, 'foo' );
- const position = new Position( foo, 0 );
- expect( position.isAtStart ).to.be.true;
- } );
- it( 'should return false if it is not at the start of it\'s parent', () => {
- const foo = new Text( document, 'foo' );
- const position = new Position( foo, 1 );
- expect( position.isAtStart ).to.be.false;
- } );
- } );
- describe( 'isAtEnd', () => {
- it( 'should return true if it is at the end of it\'s parent', () => {
- const foo = new Text( document, 'foo' );
- const p = new Element( document, 'p', null, foo );
- expect( new Position( foo, 3 ).isAtEnd ).to.be.true;
- expect( new Position( p, 1 ).isAtEnd ).to.be.true;
- } );
- it( 'should return false if it is not at the end of it\'s parent', () => {
- const foo = new Text( document, 'foo' );
- const p = new Element( document, 'p', null, foo );
- expect( new Position( foo, 2 ).isAtEnd ).to.be.false;
- expect( new Position( p, 0 ).isAtEnd ).to.be.false;
- } );
- } );
- describe( 'compareWith', () => {
- it( 'should return same if positions are same', () => {
- const root = new Element( document );
- const position = new Position( root, 0 );
- const compared = new Position( root, 0 );
- expect( position.compareWith( compared ) ).to.equal( 'same' );
- } );
- it( 'should return before if the position is before compared one', () => {
- const root = new Element( document );
- const position = new Position( root, 0 );
- const compared = new Position( root, 1 );
- expect( position.compareWith( compared ) ).to.equal( 'before' );
- } );
- it( 'should return after if the position is after compared one', () => {
- const root = new Element( document );
- const position = new Position( root, 4 );
- const compared = new Position( root, 1 );
- expect( position.compareWith( compared ) ).to.equal( 'after' );
- } );
- it( 'should return different if positions are in different roots', () => {
- const root1 = new Element( document );
- const root2 = new Element( document );
- const position = new Position( root1, 4 );
- const compared = new Position( root2, 1 );
- expect( position.compareWith( compared ) ).to.equal( 'different' );
- } );
- it( 'should return correct results if position is in document fragment', () => {
- const node = new Element( document, 'name' );
- const docFrag = new DocumentFragment( document, [ node ] );
- const position = new Position( docFrag, 0 );
- const compared = new Position( docFrag, 1 );
- const posInNode = new Position( node, 0 );
- expect( position.compareWith( compared ) ).to.equal( 'before' );
- expect( compared.compareWith( position ) ).to.equal( 'after' );
- expect( compared.compareWith( compared ) ).to.equal( 'same' );
- expect( position.compareWith( posInNode ) ).to.equal( 'before' );
- expect( compared.compareWith( posInNode ) ).to.equal( 'after' );
- } );
- } );
- describe( 'static creators', () => {
- describe( '_createAt()', () => {
- it( 'should throw if no offset is passed', () => {
- const element = new Element( document, 'p' );
- expectToThrowCKEditorError( () => {
- Position._createAt( element );
- }, /view-createPositionAt-offset-required/ );
- } );
- it( 'should create positions from positions', () => {
- const p = new Element( document, 'p' );
- const position = new Position( p, 0 );
- const created = Position._createAt( position, 0 );
- expect( created.isEqual( position ) ).to.be.true;
- expect( created ).to.not.be.equal( position );
- } );
- it( 'should create positions from node and offset', () => {
- const foo = new Text( document, 'foo' );
- const p = new Element( document, 'p', null, foo );
- expect( Position._createAt( foo, 0 ).parent ).to.equal( foo );
- expect( Position._createAt( foo, 0 ).offset ).to.equal( 0 );
- expect( Position._createAt( foo, 2 ).parent ).to.equal( foo );
- expect( Position._createAt( foo, 2 ).offset ).to.equal( 2 );
- expect( Position._createAt( p, 1 ).parent ).to.equal( p );
- expect( Position._createAt( p, 1 ).offset ).to.equal( 1 );
- } );
- it( 'should create positions from node and flag', () => {
- const foo = new Text( document, 'foo' );
- const p = new Element( document, 'p', null, foo );
- const fooEnd = Position._createAt( foo, 'end' );
- const fooBefore = Position._createAt( foo, 'before' );
- const fooAfter = Position._createAt( foo, 'after' );
- const pEnd = Position._createAt( p, 'end' );
- // pBefore and pAfter would throw.
- expect( fooEnd.parent ).to.equal( foo );
- expect( fooEnd.offset ).to.equal( 3 );
- expect( fooBefore.parent ).to.equal( p );
- expect( fooBefore.offset ).to.equal( 0 );
- expect( fooAfter.parent ).to.equal( p );
- expect( fooAfter.offset ).to.equal( 1 );
- expect( pEnd.parent ).to.equal( p );
- expect( pEnd.offset ).to.equal( 1 );
- } );
- it( 'should create positions in document fragment', () => {
- const foo = new Text( document, 'foo' );
- const docFrag = new DocumentFragment( document, [ foo ] );
- const pStart = Position._createAt( docFrag, 0 );
- const pEnd = Position._createAt( docFrag, 'end' );
- expect( pStart.parent ).to.equal( docFrag );
- expect( pStart.offset ).to.equal( 0 );
- expect( pEnd.parent ).to.equal( docFrag );
- expect( pEnd.offset ).to.equal( 1 );
- } );
- } );
- describe( '_createBefore()', () => {
- it( 'should throw error if one try to create positions before root', () => {
- const paragraph = parse( '<p></p>' );
- expectToThrowCKEditorError( () => {
- Position._createBefore( paragraph );
- }, /view-position-before-root/, paragraph );
- } );
- it( 'should create positions before `Node`', () => {
- const { selection } = parse( '<p>[]<b></b></p>' );
- const position = selection.getFirstPosition();
- const nodeAfter = position.nodeAfter;
- expect( Position._createBefore( nodeAfter ).isEqual( position ) ).to.be.true;
- } );
- it( 'should create positions before `TextProxy`', () => {
- const text = new Text( document, 'abc' );
- const textProxy = new TextProxy( text, 1, 1 );
- const position = new Position( text, 1 );
- expect( Position._createBefore( textProxy ) ).deep.equal( position );
- } );
- } );
- describe( '_createAfter()', () => {
- it( 'should throw error if one try to create positions after root', () => {
- const paragraph = parse( '<p></p>' );
- expectToThrowCKEditorError( () => {
- Position._createAfter( paragraph );
- }, /view-position-after-root/, paragraph );
- } );
- it( 'should create positions after `Node`', () => {
- const { selection } = parse( '<p><b></b>[]</p>' );
- const position = selection.getFirstPosition();
- const nodeBefore = position.nodeBefore;
- expect( Position._createAfter( nodeBefore ).isEqual( position ) ).to.be.true;
- } );
- it( 'should create positions after `TextProxy`', () => {
- const text = new Text( document, 'abcd' );
- const textProxy = new TextProxy( text, 1, 2 );
- const position = new Position( text, 3 );
- expect( Position._createAfter( textProxy ) ).deep.equal( position );
- } );
- } );
- } );
- describe( 'getEditableElement', () => {
- it( 'should return null if position is not inside EditableElement', () => {
- const position = new Position( new Element( document, 'p' ), 0 );
- expect( position.editableElement ).to.be.null;
- } );
- it( 'should return EditableElement when position is placed inside', () => {
- const p = new Element( document, 'p' );
- const editable = new EditableElement( document, 'div', null, p );
- editable._document = document;
- const position = new Position( p, 0 );
- expect( position.editableElement ).to.equal( editable );
- } );
- } );
- describe( 'getCommonAncestor()', () => {
- let div, ul, liUl1, liUl2, texts, section, article, ol, liOl1, liOl2, p;
- // |- div
- // |- ul
- // | |- li
- // | | |- foz
- // | |- li
- // | |- bar
- // |- section
- // |- Sed id libero at libero tristique
- // |- article
- // | |- ol
- // | | |- li
- // | | | |- Lorem ipsum dolor sit amet.
- // | | |- li
- // | | |- Mauris tincidunt tincidunt leo ac rutrum.
- // | |- p
- // | | |- Maecenas accumsan tellus.
- beforeEach( () => {
- texts = {
- foz: new Text( document, 'foz' ),
- bar: new Text( document, 'bar' ),
- lorem: new Text( document, 'Lorem ipsum dolor sit amet.' ),
- mauris: new Text( document, 'Mauris tincidunt tincidunt leo ac rutrum.' ),
- maecenas: new Text( document, 'Maecenas accumsan tellus.' ),
- sed: new Text( document, 'Sed id libero at libero tristique.' )
- };
- liUl1 = new Element( document, 'li', null, texts.foz );
- liUl2 = new Element( document, 'li', null, texts.bar );
- ul = new Element( document, 'ul', null, [ liUl1, liUl2 ] );
- liOl1 = new Element( document, 'li', null, texts.lorem );
- liOl2 = new Element( document, 'li', null, texts.mauris );
- ol = new Element( document, 'ol', null, [ liOl1, liOl2 ] );
- p = new Element( document, 'p', null, texts.maecenas );
- article = new Element( document, 'article', null, [ ol, p ] );
- section = new Element( document, 'section', null, [ texts.sed, article ] );
- div = new Element( document, 'div', null, [ ul, section ] );
- } );
- it( 'for two the same positions returns the parent element', () => {
- const afterLoremPosition = new Position( liOl1, 5 );
- const otherPosition = Position._createAt( afterLoremPosition );
- testParent( afterLoremPosition, otherPosition, liOl1 );
- } );
- it( 'for two positions in the same element returns the element', () => {
- const startMaecenasPosition = Position._createAt( liOl2, 0 );
- const beforeTellusPosition = new Position( liOl2, 18 );
- testParent( startMaecenasPosition, beforeTellusPosition, liOl2 );
- } );
- it( 'works when one of the positions is nested deeper than the other #1', () => {
- const firstPosition = new Position( liUl1, 1 );
- const secondPosition = new Position( p, 3 );
- testParent( firstPosition, secondPosition, div );
- } );
- it( 'works when one of the positions is nested deeper than the other #2', () => {
- const firstPosition = new Position( liOl2, 10 );
- const secondPosition = new Position( section, 1 );
- testParent( firstPosition, secondPosition, section );
- } );
- it( 'for two positions in different trees returns null', () => {
- const div = new Element( document, 'div' );
- const posInDiv = new Position( div, 0 );
- const firstPosition = new Position( liOl2, 10 );
- testParent( posInDiv, firstPosition, null );
- } );
- function testParent( positionA, positionB, lca ) {
- expect( positionA.getCommonAncestor( positionB ) ).to.equal( lca );
- expect( positionB.getCommonAncestor( positionA ) ).to.equal( lca );
- }
- } );
- describe( 'getWalker()', () => {
- let root;
- beforeEach( () => {
- const doc = new Document( new StylesProcessor() );
- root = createViewRoot( doc );
- const textAbcd = new Text( document, 'abcd' );
- const bold = new AttributeElement( document, 'b', null, [ textAbcd ] );
- const paragraph = new ContainerElement( document, 'p', null, [ bold ] );
- const img = new ContainerElement( document, 'img' );
- root._insertChild( 0, [ img, paragraph ] );
- } );
- it( 'should be possible to iterate using this method', () => {
- const position = new Position( root, 0 );
- const items = [];
- const walker = position.getWalker();
- for ( const value of walker ) {
- items.push( value.type + ':' + ( value.item.name || value.item.data ) );
- }
- expect( items ).to.deep.equal( [
- 'elementStart:img',
- 'elementEnd:img',
- 'elementStart:p',
- 'elementStart:b',
- 'text:abcd',
- 'elementEnd:b',
- 'elementEnd:p'
- ] );
- } );
- it( 'should return treewalker with given options', () => {
- const position = new Position( root, 0 );
- const walker = position.getWalker( { singleCharacters: true } );
- expect( walker ).to.be.instanceof( TreeWalker );
- expect( walker ).to.have.property( 'singleCharacters' ).that.is.true;
- expect( walker ).to.have.property( 'position' );
- expect( walker.position.isEqual( position ) ).to.be.true;
- expect( walker ).to.have.property( 'shallow' ).that.is.false;
- } );
- } );
- } );
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