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model-to-view-converters.js 19 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 ModelDocument from '/ckeditor5/engine/model/document.js';
  7. import ModelElement from '/ckeditor5/engine/model/element.js';
  8. import ModelText from '/ckeditor5/engine/model/text.js';
  9. import ModelRange from '/ckeditor5/engine/model/range.js';
  10. import ModelPosition from '/ckeditor5/engine/model/position.js';
  11. import modelWriter from '/ckeditor5/engine/model/writer.js';
  12. import ViewElement from '/ckeditor5/engine/view/element.js';
  13. import ViewContainerElement from '/ckeditor5/engine/view/containerelement.js';
  14. import ViewAttributeElement from '/ckeditor5/engine/view/attributeelement.js';
  15. import ViewText from '/ckeditor5/engine/view/text.js';
  16. import Mapper from '/ckeditor5/engine/conversion/mapper.js';
  17. import ModelConversionDispatcher from '/ckeditor5/engine/conversion/modelconversiondispatcher.js';
  18. import {
  19. insertElement,
  20. insertText,
  21. setAttribute,
  22. removeAttribute,
  23. wrap,
  24. unwrap,
  25. move,
  26. remove,
  27. rename
  28. } from '/ckeditor5/engine/conversion/model-to-view-converters.js';
  29. import { createRangeOnElementOnly } from '/tests/engine/model/_utils/utils.js';
  30. let dispatcher, modelDoc, modelRoot, mapper, viewRoot;
  31. beforeEach( () => {
  32. modelDoc = new ModelDocument();
  33. modelRoot = modelDoc.createRoot();
  34. viewRoot = new ViewContainerElement( 'div' );
  35. mapper = new Mapper();
  36. mapper.bindElements( modelRoot, viewRoot );
  37. dispatcher = new ModelConversionDispatcher( { mapper } );
  38. } );
  39. function viewAttributesToString( item ) {
  40. let result = '';
  41. for ( let key of item.getAttributeKeys() ) {
  42. let value = item.getAttribute( key );
  43. if ( value ) {
  44. result += ' ' + key + '="' + value + '"';
  45. }
  46. }
  47. return result;
  48. }
  49. function viewToString( item ) {
  50. let result = '';
  51. if ( item instanceof ViewText ) {
  52. result = item.data;
  53. } else {
  54. // ViewElement or ViewDocumentFragment.
  55. for ( let child of item.getChildren() ) {
  56. result += viewToString( child );
  57. }
  58. if ( item instanceof ViewElement ) {
  59. result = '<' + item.name + viewAttributesToString( item ) + '>' + result + '</' + item.name + '>';
  60. }
  61. }
  62. return result;
  63. }
  64. describe( 'insertText', () => {
  65. it( 'should convert text insertion in model to view text', () => {
  66. modelRoot.appendChildren( new ModelText( 'foobar' ) );
  67. dispatcher.on( 'insert:$text', insertText() );
  68. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  69. expect( viewToString( viewRoot ) ).to.equal( '<div>foobar</div>' );
  70. } );
  71. it( 'should support unicode', () => {
  72. modelRoot.appendChildren( new ModelText( 'நிலைக்கு' ) );
  73. dispatcher.on( 'insert:$text', insertText() );
  74. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  75. expect( viewToString( viewRoot ) ).to.equal( '<div>நிலைக்கு</div>' );
  76. } );
  77. } );
  78. describe( 'insertElement', () => {
  79. it( 'should convert element insertion in model to and map positions for future converting', () => {
  80. const modelElement = new ModelElement( 'paragraph', null, new ModelText( 'foobar' ) );
  81. const viewElement = new ViewContainerElement( 'p' );
  82. modelRoot.appendChildren( modelElement );
  83. dispatcher.on( 'insert:paragraph', insertElement( viewElement ) );
  84. dispatcher.on( 'insert:$text', insertText() );
  85. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  86. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  87. } );
  88. it( 'should take view element function generator as a parameter', () => {
  89. const elementGenerator = ( data, consumable ) => {
  90. if ( consumable.consume( data.item, 'addAttribute:nice' ) ) {
  91. return new ViewContainerElement( 'div' );
  92. } else {
  93. return new ViewContainerElement( 'p' );
  94. }
  95. };
  96. const niceP = new ModelElement( 'myParagraph', { nice: true }, new ModelText( 'foo' ) );
  97. const badP = new ModelElement( 'myParagraph', null, new ModelText( 'bar' ) );
  98. modelRoot.appendChildren( [ niceP, badP ] );
  99. dispatcher.on( 'insert:myParagraph', insertElement( elementGenerator ) );
  100. dispatcher.on( 'insert:$text', insertText() );
  101. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  102. expect( viewToString( viewRoot ) ).to.equal( '<div><div>foo</div><p>bar</p></div>' );
  103. } );
  104. } );
  105. describe( 'setAttribute/removeAttribute', () => {
  106. it( 'should convert attribute insert/change/remove on a model node', () => {
  107. const modelElement = new ModelElement( 'paragraph', { class: 'foo' }, new ModelText( 'foobar' ) );
  108. const viewElement = new ViewContainerElement( 'p' );
  109. modelRoot.appendChildren( modelElement );
  110. dispatcher.on( 'insert:paragraph', insertElement( viewElement ) );
  111. dispatcher.on( 'insert:$text', insertText() );
  112. dispatcher.on( 'addAttribute:class', setAttribute() );
  113. dispatcher.on( 'changeAttribute:class', setAttribute() );
  114. dispatcher.on( 'removeAttribute:class', removeAttribute() );
  115. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  116. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="foo">foobar</p></div>' );
  117. modelElement.setAttribute( 'class', 'bar' );
  118. dispatcher.convertAttribute( 'changeAttribute', createRangeOnElementOnly( modelElement ), 'class', 'foo', 'bar' );
  119. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="bar">foobar</p></div>' );
  120. modelElement.removeAttribute( 'class' );
  121. dispatcher.convertAttribute( 'removeAttribute', createRangeOnElementOnly( modelElement ), 'class', 'bar', null );
  122. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  123. } );
  124. it( 'should convert insert/change/remove with attribute generating function as a parameter', () => {
  125. const modelParagraph = new ModelElement( 'paragraph', { theme: 'nice' }, new ModelText( 'foobar' ) );
  126. const modelDiv = new ModelElement( 'div', { theme: 'nice' } );
  127. const themeConverter = ( value, key, data ) => {
  128. if ( data.item instanceof ModelElement && data.item.childCount > 0 ) {
  129. value += ' ' + 'fix-content';
  130. }
  131. return { key: 'class', value };
  132. };
  133. modelRoot.appendChildren( [ modelParagraph, modelDiv ] );
  134. dispatcher.on( 'insert:paragraph', insertElement( new ViewContainerElement( 'p' ) ) );
  135. dispatcher.on( 'insert:div', insertElement( new ViewContainerElement( 'div' ) ) );
  136. dispatcher.on( 'insert:$text', insertText() );
  137. dispatcher.on( 'addAttribute:theme', setAttribute( themeConverter ) );
  138. dispatcher.on( 'changeAttribute:theme', setAttribute( themeConverter ) );
  139. dispatcher.on( 'removeAttribute:theme', removeAttribute( themeConverter ) );
  140. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  141. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="nice fix-content">foobar</p><div class="nice"></div></div>' );
  142. modelParagraph.setAttribute( 'theme', 'awesome' );
  143. dispatcher.convertAttribute( 'changeAttribute', createRangeOnElementOnly( modelParagraph ), 'theme', 'nice', 'awesome' );
  144. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="awesome fix-content">foobar</p><div class="nice"></div></div>' );
  145. modelParagraph.removeAttribute( 'theme' );
  146. dispatcher.convertAttribute( 'removeAttribute', createRangeOnElementOnly( modelParagraph ), 'theme', 'awesome', null );
  147. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p><div class="nice"></div></div>' );
  148. } );
  149. } );
  150. describe( 'wrap/unwrap', () => {
  151. it( 'should convert insert/change/remove of attribute in model into wrapping element in a view', () => {
  152. const modelElement = new ModelElement( 'paragraph', null, new ModelText( 'foobar', { bold: true } ) );
  153. const viewP = new ViewContainerElement( 'p' );
  154. const viewB = new ViewAttributeElement( 'b' );
  155. modelRoot.appendChildren( modelElement );
  156. dispatcher.on( 'insert:paragraph', insertElement( viewP ) );
  157. dispatcher.on( 'insert:$text', insertText() );
  158. dispatcher.on( 'addAttribute:bold', wrap( viewB ) );
  159. dispatcher.on( 'removeAttribute:bold', unwrap( viewB ) );
  160. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  161. expect( viewToString( viewRoot ) ).to.equal( '<div><p><b>foobar</b></p></div>' );
  162. modelWriter.removeAttribute( ModelRange.createIn( modelElement ), 'bold' );
  163. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createIn( modelElement ), 'bold', true, null );
  164. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  165. } );
  166. it( 'should convert insert/remove of attribute in model with wrapping element generating function as a parameter', () => {
  167. const modelElement = new ModelElement( 'paragraph', null, new ModelText( 'foobar', { style: 'bold' } ) );
  168. const viewP = new ViewContainerElement( 'p' );
  169. const elementGenerator = ( value ) => {
  170. if ( value == 'bold' ) {
  171. return new ViewAttributeElement( 'b' );
  172. }
  173. };
  174. modelRoot.appendChildren( modelElement );
  175. dispatcher.on( 'insert:paragraph', insertElement( viewP ) );
  176. dispatcher.on( 'insert:$text', insertText() );
  177. dispatcher.on( 'addAttribute:style', wrap( elementGenerator ) );
  178. dispatcher.on( 'removeAttribute:style', unwrap( elementGenerator ) );
  179. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  180. expect( viewToString( viewRoot ) ).to.equal( '<div><p><b>foobar</b></p></div>' );
  181. modelWriter.removeAttribute( ModelRange.createIn( modelElement ), 'style' );
  182. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createIn( modelElement ), 'style', 'bold', null );
  183. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  184. } );
  185. it( 'should update range on re-wrapping attribute (#475)', () => {
  186. const modelElement = new ModelElement( 'paragraph', null, [
  187. new ModelText( 'x' ),
  188. new ModelText( 'foo', { link: 'http://foo.com' } ),
  189. new ModelText( 'x' )
  190. ] );
  191. const viewP = new ViewContainerElement( 'p' );
  192. const elementGenerator = ( href ) => new ViewAttributeElement( 'a', { href } );
  193. modelRoot.appendChildren( modelElement );
  194. dispatcher.on( 'insert:paragraph', insertElement( viewP ) );
  195. dispatcher.on( 'insert:$text', insertText() );
  196. dispatcher.on( 'addAttribute:link', wrap( elementGenerator ) );
  197. dispatcher.on( 'changeAttribute:link', wrap( elementGenerator ) );
  198. dispatcher.convertInsertion(
  199. ModelRange.createIn( modelRoot )
  200. );
  201. expect( viewToString( viewRoot ) ).to.equal( '<div><p>x<a href="http://foo.com">foo</a>x</p></div>' );
  202. modelWriter.setAttribute( ModelRange.createIn( modelElement ), 'link', 'http://foobar.com' );
  203. dispatcher.convertAttribute(
  204. 'changeAttribute',
  205. ModelRange.createIn( modelElement ),
  206. 'link',
  207. 'http://foo.com',
  208. 'http://foobar.com'
  209. );
  210. expect( viewToString( viewRoot ) ).to.equal( '<div><p><a href="http://foobar.com">xfoox</a></p></div>' );
  211. } );
  212. it( 'should support unicode', () => {
  213. const modelElement = new ModelElement( 'paragraph', null, [ 'நி', new ModelText( 'லைக்', { bold: true } ), 'கு' ] );
  214. const viewP = new ViewContainerElement( 'p' );
  215. const viewB = new ViewAttributeElement( 'b' );
  216. modelRoot.appendChildren( modelElement );
  217. dispatcher.on( 'insert:paragraph', insertElement( viewP ) );
  218. dispatcher.on( 'insert:$text', insertText() );
  219. dispatcher.on( 'addAttribute:bold', wrap( viewB ) );
  220. dispatcher.on( 'removeAttribute:bold', unwrap( viewB ) );
  221. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  222. expect( viewToString( viewRoot ) ).to.equal( '<div><p>நி<b>லைக்</b>கு</p></div>' );
  223. modelWriter.removeAttribute( ModelRange.createIn( modelElement ), 'bold' );
  224. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createIn( modelElement ), 'bold', true, null );
  225. expect( viewToString( viewRoot ) ).to.equal( '<div><p>நிலைக்கு</p></div>' );
  226. } );
  227. } );
  228. describe( 'move', () => {
  229. it( 'should move items in view accordingly to changes in model', () => {
  230. const modelDivA = new ModelElement( 'div', null, [
  231. new ModelText( 'foo' ),
  232. new ModelElement( 'image' ),
  233. new ModelText( 'bar' )
  234. ] );
  235. const modelDivB = new ModelElement( 'div', null, new ModelText( 'xxyy' ) );
  236. modelRoot.appendChildren( [ modelDivA, modelDivB ] );
  237. dispatcher.on( 'insert:div', insertElement( new ViewContainerElement( 'div' ) ) );
  238. dispatcher.on( 'insert:image', insertElement( new ViewContainerElement( 'img' ) ) );
  239. dispatcher.on( 'insert:$text', insertText() );
  240. dispatcher.on( 'move', move() );
  241. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  242. const removedNodes = modelDivA.removeChildren( 0, 2 );
  243. modelDivB.insertChildren( 0, removedNodes );
  244. dispatcher.convertMove(
  245. ModelPosition.createFromParentAndOffset( modelDivA, 0 ),
  246. ModelRange.createFromParentsAndOffsets( modelDivB, 0, modelDivB, 4 )
  247. );
  248. expect( viewToString( viewRoot ) ).to.equal( '<div><div>bar</div><div>foo<img></img>xxyy</div></div>' );
  249. } );
  250. it( 'should not execute if value was already consumed', () => {
  251. const modelDivA = new ModelElement( 'div', null, new ModelText( 'foo' ) );
  252. const modelDivB = new ModelElement( 'div', null, new ModelText( 'xxyy' ) );
  253. modelRoot.appendChildren( [ modelDivA, modelDivB ] );
  254. dispatcher.on( 'insert:div', insertElement( new ViewContainerElement( 'div' ) ) );
  255. dispatcher.on( 'insert:$text', insertText() );
  256. dispatcher.on( 'move', move() );
  257. dispatcher.on( 'move', ( evt, data, consumable ) => {
  258. consumable.consume( data.item, 'move' );
  259. }, { priority: 'high' } );
  260. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  261. expect( viewToString( viewRoot ) ).to.equal( '<div><div>foo</div><div>xxyy</div></div>' );
  262. const removedNodes = modelDivA.removeChildren( 0, 1 );
  263. modelDivB.insertChildren( 0, removedNodes );
  264. dispatcher.convertMove(
  265. ModelPosition.createFromParentAndOffset( modelDivA, 0 ),
  266. ModelRange.createFromParentsAndOffsets( modelDivB, 0, modelDivB, 3 )
  267. );
  268. expect( viewToString( viewRoot ) ).to.equal( '<div><div>foo</div><div>xxyy</div></div>' );
  269. } );
  270. it( 'should support unicode', () => {
  271. const modelDivA = new ModelElement( 'div', null, 'நிலைக்கு' );
  272. const modelDivB = new ModelElement( 'div' );
  273. modelRoot.appendChildren( [ modelDivA, modelDivB ] );
  274. dispatcher.on( 'insert:div', insertElement( new ViewContainerElement( 'div' ) ) );
  275. dispatcher.on( 'insert:$text', insertText() );
  276. dispatcher.on( 'move', move() );
  277. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  278. modelWriter.move(
  279. ModelRange.createFromParentsAndOffsets( modelDivA, 2, modelDivA, 6 ),
  280. ModelPosition.createAt( modelDivB, 'end' )
  281. );
  282. dispatcher.convertMove(
  283. ModelPosition.createFromParentAndOffset( modelDivA, 2 ),
  284. ModelRange.createFromParentsAndOffsets( modelDivB, 0, modelDivB, 4 )
  285. );
  286. expect( viewToString( viewRoot ) ).to.equal( '<div><div>நிகு</div><div>லைக்</div></div>' );
  287. } );
  288. } );
  289. describe( 'remove', () => {
  290. it( 'should remove items from view accordingly to changes in model', () => {
  291. const modelDiv = new ModelElement( 'div', null, [
  292. new ModelText( 'foo' ),
  293. new ModelElement( 'image' ),
  294. new ModelText( 'bar' )
  295. ] );
  296. modelRoot.appendChildren( modelDiv );
  297. dispatcher.on( 'insert:div', insertElement( new ViewContainerElement( 'div' ) ) );
  298. dispatcher.on( 'insert:image', insertElement( new ViewContainerElement( 'img' ) ) );
  299. dispatcher.on( 'insert:$text', insertText() );
  300. dispatcher.on( 'remove', remove() );
  301. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  302. const removedNodes = modelDiv.removeChildren( 0, 2 );
  303. modelDoc.graveyard.insertChildren( 0, removedNodes );
  304. dispatcher.convertRemove(
  305. ModelPosition.createFromParentAndOffset( modelDiv, 0 ),
  306. ModelRange.createFromParentsAndOffsets( modelDoc.graveyard, 0, modelDoc.graveyard, 4 )
  307. );
  308. expect( viewToString( viewRoot ) ).to.equal( '<div><div>bar</div></div>' );
  309. } );
  310. it( 'should not execute if value was already consumed', () => {
  311. const modelDiv = new ModelElement( 'div', null, new ModelText( 'foo' ) );
  312. modelRoot.appendChildren( modelDiv );
  313. dispatcher.on( 'insert:div', insertElement( new ViewContainerElement( 'div' ) ) );
  314. dispatcher.on( 'insert:$text', insertText() );
  315. dispatcher.on( 'remove', remove() );
  316. dispatcher.on( 'remove', ( evt, data, consumable ) => {
  317. consumable.consume( data.item, 'remove' );
  318. }, { priority: 'high' } );
  319. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  320. expect( viewToString( viewRoot ) ).to.equal( '<div><div>foo</div></div>' );
  321. const removedNodes = modelDiv.removeChildren( 0, 1 );
  322. modelDoc.graveyard.insertChildren( 0, removedNodes );
  323. dispatcher.convertRemove(
  324. ModelPosition.createFromParentAndOffset( modelDiv, 0 ),
  325. ModelRange.createFromParentsAndOffsets( modelDoc.graveyard, 0, modelDoc.graveyard, 3 )
  326. );
  327. expect( viewToString( viewRoot ) ).to.equal( '<div><div>foo</div></div>' );
  328. } );
  329. it( 'should support unicode', () => {
  330. const modelDiv = new ModelElement( 'div', null, 'நிலைக்கு' );
  331. modelRoot.appendChildren( modelDiv );
  332. dispatcher.on( 'insert:div', insertElement( new ViewContainerElement( 'div' ) ) );
  333. dispatcher.on( 'insert:$text', insertText() );
  334. dispatcher.on( 'remove', remove() );
  335. dispatcher.convertInsertion( ModelRange.createIn( modelRoot ) );
  336. modelWriter.move(
  337. ModelRange.createFromParentsAndOffsets( modelDiv, 0, modelDiv, 6 ),
  338. ModelPosition.createAt( modelDoc.graveyard, 'end' )
  339. );
  340. dispatcher.convertRemove(
  341. ModelPosition.createFromParentAndOffset( modelDiv, 0 ),
  342. ModelRange.createFromParentsAndOffsets( modelDoc.graveyard, 0, modelDoc.graveyard, 6 )
  343. );
  344. expect( viewToString( viewRoot ) ).to.equal( '<div><div>கு</div></div>' );
  345. } );
  346. } );
  347. describe( 'rename', () => {
  348. const oldName = 'oldName';
  349. const newName = 'newName';
  350. let element, converters;
  351. beforeEach( () => {
  352. converters = {
  353. insertText: insertText(),
  354. insert: insertElement( ( data ) => new ViewContainerElement( data.item.name ) ),
  355. move: move(),
  356. remove: remove(),
  357. rename: rename()
  358. };
  359. sinon.spy( converters, 'insert' );
  360. sinon.spy( converters, 'move' );
  361. sinon.spy( converters, 'remove' );
  362. element = new ModelElement( oldName, null, new ModelText( 'foo' ) );
  363. modelRoot.appendChildren( element );
  364. dispatcher.on( 'insert:$text', converters.insertText );
  365. dispatcher.on( 'insert', converters.insert );
  366. dispatcher.on( 'move', converters.move );
  367. dispatcher.on( 'remove', converters.remove );
  368. dispatcher.on( 'rename', converters.rename );
  369. dispatcher.convertInsertion( ModelRange.createOn( element ) );
  370. element.name = newName;
  371. } );
  372. afterEach( () => {
  373. converters.insert.restore();
  374. converters.move.restore();
  375. converters.remove.restore();
  376. } );
  377. it( 'should enable default rename conversion, that uses already registered callbacks', () => {
  378. expect( viewRoot.getChild( 0 ).name ).to.equal( 'oldName' );
  379. dispatcher.convertRename( element, oldName );
  380. // Called twice, first time when renamed element was originally inserted to model and converted to view.
  381. expect( converters.insert.calledTwice ).to.be.true;
  382. expect( converters.move.calledOnce ).to.be.true;
  383. expect( converters.remove.calledOnce ).to.be.true;
  384. expect( viewRoot.getChild( 0 ).name ).to.equal( 'newName' );
  385. expect( viewRoot.getChild( 0 ).getChild( 0 ).data ).to.equal( 'foo' );
  386. } );
  387. it( 'should not execute if converted value was already consumed', () => {
  388. dispatcher.on( 'rename', ( evt, data, consumable ) => {
  389. consumable.consume( data.element, 'rename' );
  390. }, { priority: 'high' } );
  391. dispatcher.on( 'rename', ( evt, data ) => {
  392. expect( data.fakeElement ).to.be.undefined;
  393. } );
  394. dispatcher.convertRename( element, oldName );
  395. } );
  396. } );