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- /**
- * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- /* bender-tags: treemodel */
- 'use strict';
- import Document from '/ckeditor5/core/treemodel/document.js';
- import Attribute from '/ckeditor5/core/treemodel/attribute.js';
- import Element from '/ckeditor5/core/treemodel/element.js';
- import Text from '/ckeditor5/core/treemodel/text.js';
- import TreeWalker from '/ckeditor5/core/treemodel/treewalker.js';
- import Position from '/ckeditor5/core/treemodel/position.js';
- import Range from '/ckeditor5/core/treemodel/range.js';
- import CKEditorError from '/ckeditor5/core/ckeditorerror.js';
- describe( 'range iterator', () => {
- let ELEMENT_START, ELEMENT_END, CHARACTER, TEXT;
- let doc, expectedItems, expectedItemsMerged, root, img1, paragraph, b, a, r, img2, x;
- before( () => {
- ELEMENT_START = TreeWalker.ELEMENT_START;
- ELEMENT_END = TreeWalker.ELEMENT_END;
- TEXT = TreeWalker.TEXT;
- doc = new Document();
- root = doc.createRoot( 'root' );
- // root
- // |- img1
- // |- p
- // |- B
- // |- A
- // |- R
- // |
- // |- img2
- // |
- // |- X
- let attrBoldTrue = new Attribute( 'bold', true );
- b = new Text( 'b', [ attrBoldTrue ] );
- a = new Text( 'a', [ attrBoldTrue ] );
- r = new Text( 'r' );
- img2 = new Element( 'img2' );
- x = new Text( 'x' );
- paragraph = new Element( 'p', [], [ b, a, r, img2, x ] );
- img1 = new Element( 'img1' );
- root.insertChildren( 0, [ img1, paragraph ] );
- expectedItems = [
- { type: ELEMENT_START, item: img1 },
- { type: ELEMENT_END, item: img1 },
- { type: ELEMENT_START, item: paragraph },
- { type: CHARACTER, text: 'b', attrs: [ attrBoldTrue ] },
- { type: CHARACTER, text: 'a', attrs: [ attrBoldTrue ] },
- { type: CHARACTER, text: 'r', attrs: [] },
- { type: ELEMENT_START, item: img2 },
- { type: ELEMENT_END, item: img2 },
- { type: CHARACTER, text: 'x', attrs: [] },
- { type: ELEMENT_END, item: paragraph }
- ];
- expectedItemsMerged = [
- { type: ELEMENT_START, item: img1 },
- { type: ELEMENT_END, item: img1 },
- { type: ELEMENT_START, item: paragraph },
- { type: TEXT, text: 'ba', attrs: [ attrBoldTrue ] },
- { type: TEXT, text: 'r', attrs: [] },
- { type: ELEMENT_START, item: img2 },
- { type: ELEMENT_END, item: img2 },
- { type: TEXT, text: 'x', attrs: [] },
- { type: ELEMENT_END, item: paragraph }
- ];
- } );
- function expectItem( item, expected ) {
- expect( item.done ).to.be.false;
- if ( item.value.type == TEXT || item.value.type == CHARACTER ) {
- let text = item.value.item.text || item.value.item.character;
- expect( text ).to.equal( expected.text );
- expect( Array.from( item.value.item.attrs ) ).to.deep.equal( expected.attrs );
- } else {
- expect( item.value ).to.deep.equal( expected );
- }
- }
- it( 'should return next position', () => {
- let iterator = new TreeWalker( { position: new Position( root, [ 0 ] ) } ); // beginning of root
- let i, len;
- for ( i = 0, len = expectedItems.length; i < len; i++ ) {
- expectItem( iterator.next(), expectedItems[ i ] );
- }
- expect( iterator.next() ).to.have.property( 'done' ).that.is.true;
- } );
- it( 'should return previous position', () => {
- let iterator = new TreeWalker( { position: new Position( root, [ 2 ] ) } ); // ending of root
- for ( let i = expectedItems.length - 1; i >= 0; i-- ) {
- expectItem( iterator.previous(), expectedItems[ i ] );
- }
- expect( iterator.previous() ).to.have.property( 'done' ).that.is.true;
- } );
- it( 'should return next position in the boundaries', () => {
- let start = new Position( root, [ 1, 0 ] ); // p, 0
- let end = new Position( root, [ 1, 3, 0 ] ); // img, 0
- let iterator = new TreeWalker( { boundaries: new Range( start, end ) } );
- let i, len;
- for ( i = 3, len = expectedItems.length; i < 7; i++ ) {
- expectItem( iterator.next(), expectedItems[ i ] );
- }
- expect( iterator.next() ).to.have.property( 'done' ).that.is.true;
- } );
- it( 'should return previous position in the boundaries', () => {
- let start = new Position( root, [ 1, 0 ] ); // p, 0
- let end = new Position( root, [ 1, 3, 0 ] ); // img, 0
- let iterator = new TreeWalker( { boundaries: new Range( start, end ), position: end } );
- let i, len;
- for ( i = 6, len = expectedItems.length; i > 2; i-- ) {
- expectItem( iterator.previous(), expectedItems[ i ] );
- }
- expect( iterator.previous() ).to.have.property( 'done' ).that.is.true;
- } );
- it( 'should merge characters when iterating over the range using next', () => {
- let start = new Position( root, [ 1 ] );
- let end = new Position( root, [ 1, 4 ] );
- let range = new Range( start, end );
- let iterator = new TreeWalker( { boundaries: range, position: range.start, mergeCharacters: true } );
- let i;
- for ( i = 2; i <= 6; i++ ) {
- expectItem( iterator.next(), expectedItemsMerged[ i ] );
- }
- expect( iterator.next() ).to.have.property( 'done' ).that.is.true;
- } );
- it( 'should merge characters when iterating over the range using previous', () => {
- let start = new Position( root, [ 1 ] );
- let end = new Position( root, [ 1, 4 ] );
- let range = new Range( start, end );
- let iterator = new TreeWalker( { boundaries: range, position: range.end, mergeCharacters: true } );
- for ( let i = 6; i >= 2; i-- ) {
- expectItem( iterator.previous(), expectedItemsMerged[ i ] );
- }
- expect( iterator.previous() ).to.have.property( 'done' ).that.is.true;
- } );
- it( 'should respect boundaries when iterating using next and merging characters', () => {
- let start = new Position( root, [ 1, 0 ] );
- let end = new Position( root, [ 1, 1 ] );
- let range = new Range( start, end );
- let iterator = new TreeWalker( { boundaries: range, position: range.start, mergeCharacters: true } );
- let val = iterator.next();
- expect( val.done ).to.be.false;
- expect( val.value.item.text ).to.equal( 'b' );
- val = iterator.next();
- expect( val.done ).to.be.true;
- } );
- it( 'should respect boundaries when iterating using previous and merging characters', () => {
- let start = new Position( root, [ 1, 1 ] );
- let end = new Position( root, [ 1, 2 ] );
- let range = new Range( start, end );
- let iterator = new TreeWalker( { boundaries: range, position: range.end, mergeCharacters: true } );
- let val = iterator.previous();
- expect( val.done ).to.be.false;
- expect( val.value.item.text ).to.equal( 'a' );
- val = iterator.previous();
- expect( val.done ).to.be.true;
- } );
- it( 'should throw if neither boundaries nor starting position is set', () => {
- expect( () => {
- new TreeWalker();
- } ).to.throw( CKEditorError, /^tree-walker-no-start-position/ );
- expect( () => {
- new TreeWalker( {} );
- } ).to.throw( CKEditorError, /^tree-walker-no-start-position/ );
- expect( () => {
- new TreeWalker( { mergeCharacters: true } );
- } ).to.throw( CKEditorError, /^tree-walker-no-start-position/ );
- } );
- } );
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