buildmodelconverter.js 15 KB

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  1. /**
  2. * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md.
  4. */
  5. /* bender-tags: conversion */
  6. import buildModelConverter from '/ckeditor5/engine/conversion/buildmodelconverter.js';
  7. import ModelDocument from '/ckeditor5/engine/model/document.js';
  8. import ModelElement from '/ckeditor5/engine/model/element.js';
  9. import ModelText from '/ckeditor5/engine/model/text.js';
  10. import ModelRange from '/ckeditor5/engine/model/range.js';
  11. import ModelPosition from '/ckeditor5/engine/model/position.js';
  12. import modelWriter from '/ckeditor5/engine/model/writer.js';
  13. import ViewDocument from '/ckeditor5/engine/view/document.js';
  14. import ViewElement from '/ckeditor5/engine/view/element.js';
  15. import ViewContainerElement from '/ckeditor5/engine/view/containerelement.js';
  16. import ViewAttributeElement from '/ckeditor5/engine/view/attributeelement.js';
  17. import ViewText from '/ckeditor5/engine/view/text.js';
  18. import Mapper from '/ckeditor5/engine/conversion/mapper.js';
  19. import ModelConversionDispatcher from '/ckeditor5/engine/conversion/modelconversiondispatcher.js';
  20. import {
  21. insertText,
  22. move,
  23. remove
  24. } from '/ckeditor5/engine/conversion/model-to-view-converters.js';
  25. import {
  26. convertCollapsedSelection,
  27. clearAttributes
  28. } from '/ckeditor5/engine/conversion/model-selection-to-view-converters.js';
  29. function viewAttributesToString( item ) {
  30. let result = '';
  31. for ( let key of item.getAttributeKeys() ) {
  32. let value = item.getAttribute( key );
  33. if ( value ) {
  34. result += ' ' + key + '="' + value + '"';
  35. }
  36. }
  37. return result;
  38. }
  39. function viewToString( item ) {
  40. let result = '';
  41. if ( item instanceof ViewText ) {
  42. result = item.data;
  43. } else {
  44. // ViewElement or ViewDocumentFragment.
  45. for ( let child of item.getChildren() ) {
  46. result += viewToString( child );
  47. }
  48. if ( item instanceof ViewElement ) {
  49. result = '<' + item.name + viewAttributesToString( item ) + '>' + result + '</' + item.name + '>';
  50. }
  51. }
  52. return result;
  53. }
  54. describe( 'Model converter builder', () => {
  55. let dispatcher, mapper;
  56. let modelDoc, modelRoot;
  57. let viewDoc, viewRoot, viewSelection;
  58. beforeEach( () => {
  59. modelDoc = new ModelDocument();
  60. modelRoot = modelDoc.createRoot( 'root', 'root' );
  61. viewDoc = new ViewDocument();
  62. viewRoot = viewDoc.createRoot( 'div' );
  63. viewSelection = viewDoc.selection;
  64. mapper = new Mapper();
  65. mapper.bindElements( modelRoot, viewRoot );
  66. dispatcher = new ModelConversionDispatcher( { mapper, viewSelection } );
  67. dispatcher.on( 'insert:$text', insertText() );
  68. dispatcher.on( 'move', move() );
  69. dispatcher.on( 'remove', remove() );
  70. } );
  71. describe( 'model element to view element conversion', () => {
  72. it( 'using passed view element name', () => {
  73. buildModelConverter().for( dispatcher ).fromElement( 'paragraph' ).toElement( 'p' );
  74. let modelElement = new ModelElement( 'paragraph', null, new ModelText( 'foobar' ) );
  75. modelRoot.appendChildren( modelElement );
  76. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  77. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  78. } );
  79. it( 'using passed view element', () => {
  80. buildModelConverter().for( dispatcher ).fromElement( 'image' ).toElement( new ViewContainerElement( 'img' ) );
  81. let modelElement = new ModelElement( 'image' );
  82. modelRoot.appendChildren( modelElement );
  83. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  84. expect( viewToString( viewRoot ) ).to.equal( '<div><img></img></div>' );
  85. } );
  86. it( 'using passed creator function', () => {
  87. buildModelConverter().for( dispatcher )
  88. .fromElement( 'header' )
  89. .toElement( ( data ) => new ViewContainerElement( 'h' + data.item.getAttribute( 'level' ) ) );
  90. let modelElement = new ModelElement( 'header', { level: 2 }, new ModelText( 'foobar' ) );
  91. modelRoot.appendChildren( modelElement );
  92. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  93. expect( viewToString( viewRoot ) ).to.equal( '<div><h2>foobar</h2></div>' );
  94. } );
  95. } );
  96. describe( 'model attribute to view element conversion', () => {
  97. beforeEach( () => {
  98. buildModelConverter().for( dispatcher ).fromElement( 'paragraph' ).toElement( 'p' );
  99. } );
  100. it( 'using passed view element name', () => {
  101. buildModelConverter().for( dispatcher ).fromAttribute( 'bold' ).toElement( 'strong' );
  102. let modelElement = new ModelText( 'foo', { bold: true } );
  103. modelRoot.appendChildren( modelElement );
  104. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  105. expect( viewToString( viewRoot ) ).to.equal( '<div><strong>foo</strong></div>' );
  106. modelWriter.removeAttribute( ModelRange.createFromElement( modelRoot ), 'bold' );
  107. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createFromElement( modelRoot ), 'bold', true, null );
  108. expect( viewToString( viewRoot ) ).to.equal( '<div>foo</div>' );
  109. } );
  110. it( 'using passed view element', () => {
  111. buildModelConverter().for( dispatcher ).fromAttribute( 'bold' ).toElement( new ViewAttributeElement( 'strong' ) );
  112. let modelElement = new ModelText( 'foo', { bold: true } );
  113. modelRoot.appendChildren( modelElement );
  114. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  115. expect( viewToString( viewRoot ) ).to.equal( '<div><strong>foo</strong></div>' );
  116. modelWriter.removeAttribute( ModelRange.createFromElement( modelRoot ), 'bold' );
  117. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createFromElement( modelRoot ), 'bold', true, null );
  118. expect( viewToString( viewRoot ) ).to.equal( '<div>foo</div>' );
  119. } );
  120. it( 'using passed creator function', () => {
  121. buildModelConverter().for( dispatcher ).fromAttribute( 'italic' ).toElement( ( value ) => new ViewAttributeElement( value ) );
  122. let modelElement = new ModelText( 'foo', { italic: 'em' } );
  123. modelRoot.appendChildren( modelElement );
  124. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  125. expect( viewToString( viewRoot ) ).to.equal( '<div><em>foo</em></div>' );
  126. modelWriter.setAttribute( ModelRange.createFromElement( modelRoot ), 'italic', 'i' );
  127. dispatcher.convertAttribute( 'changeAttribute', ModelRange.createFromElement( modelRoot ), 'italic', 'em', 'i' );
  128. expect( viewToString( viewRoot ) ).to.equal( '<div><i>foo</i></div>' );
  129. modelWriter.removeAttribute( ModelRange.createFromElement( modelRoot ), 'italic' );
  130. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createFromElement( modelRoot ), 'italic', 'i', null );
  131. expect( viewToString( viewRoot ) ).to.equal( '<div>foo</div>' );
  132. } );
  133. it( 'selection conversion', () => {
  134. // This test requires collapsed range selection converter (breaking attributes) and clearing "artifacts".
  135. dispatcher.on( 'selection', clearAttributes() );
  136. dispatcher.on( 'selection', convertCollapsedSelection() );
  137. // Model converter builder should add selection converter.
  138. buildModelConverter().for( dispatcher ).fromAttribute( 'italic' ).toElement( ( value ) => new ViewAttributeElement( value ) );
  139. modelRoot.appendChildren( new ModelText( 'foo', { italic: 'em' } ) );
  140. // Set collapsed selection after "f".
  141. const position = new ModelPosition( modelRoot, [ 1 ] );
  142. modelDoc.selection.setRanges( [ new ModelRange( position, position ) ] );
  143. modelDoc.selection._updateAttributes();
  144. // Convert stuff.
  145. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  146. dispatcher.convertSelection( modelDoc.selection );
  147. // Check if view structure is ok.
  148. expect( viewToString( viewRoot ) ).to.equal( '<div><em>foo</em></div>' );
  149. // Check if view selection is collapsed after "f" letter.
  150. let ranges = Array.from( viewSelection.getRanges() );
  151. expect( ranges.length ).to.equal( 1 );
  152. expect( ranges[ 0 ].start.isEqual( ranges[ 0 ].end ) ).to.be.true;
  153. expect( ranges[ 0 ].start.parent ).to.be.instanceof( ViewText ); // "foo".
  154. expect( ranges[ 0 ].start.offset ).to.equal( 1 );
  155. // Change selection attribute, convert it.
  156. modelDoc.selection.setAttribute( 'italic', 'i' );
  157. dispatcher.convertSelection( modelDoc.selection );
  158. // Check if view structure has changed.
  159. expect( viewToString( viewRoot ) ).to.equal( '<div><em>f</em><i></i><em>oo</em></div>' );
  160. // Check if view selection is inside new <em> element.
  161. ranges = Array.from( viewSelection.getRanges() );
  162. expect( ranges.length ).to.equal( 1 );
  163. expect( ranges[ 0 ].start.isEqual( ranges[ 0 ].end ) ).to.be.true;
  164. expect( ranges[ 0 ].start.parent.name ).to.equal( 'i' );
  165. expect( ranges[ 0 ].start.offset ).to.equal( 0 );
  166. // Some more tests checking how selection attributes changes are converted:
  167. modelDoc.selection.removeAttribute( 'italic' );
  168. dispatcher.convertSelection( modelDoc.selection );
  169. expect( viewToString( viewRoot ) ).to.equal( '<div><em>f</em><em>oo</em></div>' );
  170. ranges = Array.from( viewSelection.getRanges() );
  171. expect( ranges[ 0 ].start.parent.name ).to.equal( 'div' );
  172. expect( ranges[ 0 ].start.offset ).to.equal( 1 );
  173. modelDoc.selection.setAttribute( 'italic', 'em' );
  174. dispatcher.convertSelection( modelDoc.selection );
  175. expect( viewToString( viewRoot ) ).to.equal( '<div><em>foo</em></div>' );
  176. ranges = Array.from( viewSelection.getRanges() );
  177. expect( ranges.length ).to.equal( 1 );
  178. expect( ranges[ 0 ].start.isEqual( ranges[ 0 ].end ) ).to.be.true;
  179. expect( ranges[ 0 ].start.parent ).to.be.instanceof( ViewText ); // "foo".
  180. expect( ranges[ 0 ].start.offset ).to.equal( 1 );
  181. } );
  182. } );
  183. describe( 'model attribute to view attribute conversion', () => {
  184. beforeEach( () => {
  185. buildModelConverter().for( dispatcher ).fromElement( 'paragraph' ).toElement( 'p' );
  186. } );
  187. it( 'using default 1-to-1 conversion', () => {
  188. buildModelConverter().for( dispatcher ).fromAttribute( 'class' ).toAttribute();
  189. let modelElement = new ModelElement( 'paragraph', { class: 'myClass' }, new ModelText( 'foobar' ) );
  190. modelRoot.appendChildren( modelElement );
  191. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  192. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="myClass">foobar</p></div>' );
  193. modelElement.setAttribute( 'class', 'newClass' );
  194. dispatcher.convertAttribute( 'changeAttribute', ModelRange.createOnElement( modelElement ), 'class', 'myClass', 'newClass' );
  195. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="newClass">foobar</p></div>' );
  196. modelElement.removeAttribute( 'class' );
  197. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createOnElement( modelElement ), 'class', 'newClass', null );
  198. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  199. } );
  200. it( 'using passed attribute key', () => {
  201. buildModelConverter().for( dispatcher ).fromAttribute( 'theme' ).toAttribute( 'class' );
  202. let modelElement = new ModelElement( 'paragraph', { theme: 'abc' }, new ModelText( 'foobar' ) );
  203. modelRoot.appendChildren( modelElement );
  204. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  205. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="abc">foobar</p></div>' );
  206. modelElement.setAttribute( 'theme', 'xyz' );
  207. dispatcher.convertAttribute( 'changeAttribute', ModelRange.createOnElement( modelElement ), 'theme', 'abc', 'xyz' );
  208. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="xyz">foobar</p></div>' );
  209. modelElement.removeAttribute( 'theme' );
  210. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createOnElement( modelElement ), 'theme', 'xyz', null );
  211. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  212. } );
  213. it( 'using passed attribute key and value', () => {
  214. buildModelConverter().for( dispatcher ).fromAttribute( 'highlighted' ).toAttribute( 'style', 'background:yellow' );
  215. let modelElement = new ModelElement( 'paragraph', { 'highlighted': true }, new ModelText( 'foobar' ) );
  216. modelRoot.appendChildren( modelElement );
  217. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  218. expect( viewToString( viewRoot ) ).to.equal( '<div><p style="background:yellow;">foobar</p></div>' );
  219. modelElement.removeAttribute( 'highlighted' );
  220. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createOnElement( modelElement ), 'highlighted', true, null );
  221. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  222. } );
  223. it( 'using passed attribute creator function', () => {
  224. buildModelConverter().for( dispatcher )
  225. .fromAttribute( 'theme' )
  226. .toAttribute( ( value ) => ( { key: 'class', value: value + '-theme' } ) );
  227. let modelElement = new ModelElement( 'paragraph', { theme: 'nice' }, new ModelText( 'foobar' ) );
  228. modelRoot.appendChildren( modelElement );
  229. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  230. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="nice-theme">foobar</p></div>' );
  231. modelElement.setAttribute( 'theme', 'good' );
  232. dispatcher.convertAttribute( 'changeAttribute', ModelRange.createOnElement( modelElement ), 'theme', 'nice', 'good' );
  233. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="good-theme">foobar</p></div>' );
  234. modelElement.removeAttribute( 'theme' );
  235. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createOnElement( modelElement ), 'theme', 'good', null );
  236. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  237. } );
  238. } );
  239. describe( 'withPriority', () => {
  240. it( 'should change default converters priority', () => {
  241. buildModelConverter().for( dispatcher ).fromElement( 'custom' ).toElement( 'custom' );
  242. buildModelConverter().for( dispatcher ).fromElement( 'custom' ).withPriority( 'high' ).toElement( 'other' );
  243. let modelElement = new ModelElement( 'custom', null, new ModelText( 'foobar' ) );
  244. modelRoot.appendChildren( modelElement );
  245. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  246. expect( viewToString( viewRoot ) ).to.equal( '<div><other>foobar</other></div>' );
  247. } );
  248. } );
  249. it( 'should do nothing on model element to view attribute conversion', () => {
  250. buildModelConverter().for( dispatcher ).fromElement( 'div' ).toElement( 'div' );
  251. // Should do nothing:
  252. buildModelConverter().for( dispatcher ).fromElement( 'paragraph' ).toAttribute( 'paragraph', true );
  253. // If above would do something this one would not be fired:
  254. buildModelConverter().for( dispatcher ).fromElement( 'paragraph' ).toElement( 'p' );
  255. let modelElement = new ModelElement( 'div', null, new ModelElement( 'paragraph', null, new ModelText( 'foobar' ) ) );
  256. modelRoot.appendChildren( modelElement );
  257. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  258. expect( viewToString( viewRoot ) ).to.equal( '<div><div><p>foobar</p></div></div>' );
  259. } );
  260. } );