renderer.js 60 KB

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  1. /**
  2. * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md.
  4. */
  5. /* globals Range, document, window */
  6. import ViewElement from '../../src/view/element';
  7. import ViewText from '../../src/view/text';
  8. import ViewRange from '../../src/view/range';
  9. import ViewPosition from '../../src/view/position';
  10. import Selection from '../../src/view/selection';
  11. import DomConverter from '../../src/view/domconverter';
  12. import Renderer from '../../src/view/renderer';
  13. import CKEditorError from '@ckeditor/ckeditor5-utils/src/ckeditorerror';
  14. import { parse } from '../../src/dev-utils/view';
  15. import { INLINE_FILLER, INLINE_FILLER_LENGTH, isBlockFiller, BR_FILLER } from '../../src/view/filler';
  16. import testUtils from '@ckeditor/ckeditor5-core/tests/_utils/utils';
  17. import createElement from '@ckeditor/ckeditor5-utils/src/dom/createelement';
  18. testUtils.createSinonSandbox();
  19. describe( 'Renderer', () => {
  20. let selection, domConverter, renderer;
  21. beforeEach( () => {
  22. selection = new Selection();
  23. domConverter = new DomConverter();
  24. renderer = new Renderer( domConverter, selection );
  25. renderer.domDocuments.add( document );
  26. } );
  27. describe( 'markToSync', () => {
  28. let viewRoot;
  29. beforeEach( () => {
  30. viewRoot = new ViewElement( 'p' );
  31. const domRoot = document.createElement( 'p' );
  32. domConverter.bindElements( domRoot, viewRoot );
  33. viewRoot.appendChildren( new ViewText( 'foo' ) );
  34. renderer.markedTexts.clear();
  35. renderer.markedAttributes.clear();
  36. renderer.markedChildren.clear();
  37. } );
  38. it( 'should mark attributes which need update', () => {
  39. viewRoot.setAttribute( 'class', 'foo' );
  40. renderer.markToSync( 'attributes', viewRoot );
  41. expect( renderer.markedAttributes.has( viewRoot ) ).to.be.true;
  42. } );
  43. it( 'should mark children which need update', () => {
  44. viewRoot.appendChildren( new ViewText( 'foo' ) );
  45. renderer.markToSync( 'children', viewRoot );
  46. expect( renderer.markedChildren.has( viewRoot ) ).to.be.true;
  47. } );
  48. it( 'should not mark children if element has no corresponding node', () => {
  49. // Overwrite viewRoot with node without coresponding DOM node.
  50. viewRoot = new ViewElement( 'p' );
  51. viewRoot.appendChildren( new ViewText( 'foo' ) );
  52. renderer.markToSync( 'children', viewRoot );
  53. expect( renderer.markedTexts.has( viewRoot ) ).to.be.false;
  54. } );
  55. it( 'should mark text which need update', () => {
  56. const viewText = new ViewText( 'foo' );
  57. viewRoot.appendChildren( viewText );
  58. viewText.data = 'bar';
  59. renderer.markToSync( 'text', viewText );
  60. expect( renderer.markedTexts.has( viewText ) ).to.be.true;
  61. } );
  62. it( 'should not mark text if parent has no corresponding node', () => {
  63. const viewText = new ViewText( 'foo' );
  64. // Overwrite viewRoot with node without coresponding DOM node.
  65. viewRoot = new ViewElement( 'p' );
  66. viewRoot.appendChildren( viewText );
  67. viewText.data = 'bar';
  68. renderer.markToSync( 'text', viewText );
  69. expect( renderer.markedTexts.has( viewText ) ).to.be.false;
  70. } );
  71. it( 'should throw if the type is unknown', () => {
  72. expect( () => {
  73. renderer.markToSync( 'UNKNOWN', viewRoot );
  74. } ).to.throw( CKEditorError, /^view-renderer-unknown-type/ );
  75. } );
  76. } );
  77. describe( 'render', () => {
  78. let viewRoot, domRoot, selectionEditable;
  79. beforeEach( () => {
  80. viewRoot = new ViewElement( 'div' );
  81. domRoot = document.createElement( 'div' );
  82. document.body.appendChild( domRoot );
  83. domConverter.bindElements( domRoot, viewRoot );
  84. renderer.markedTexts.clear();
  85. renderer.markedAttributes.clear();
  86. renderer.markedChildren.clear();
  87. selection.removeAllRanges();
  88. selection.setFake( false );
  89. selectionEditable = viewRoot;
  90. renderer.isFocused = true;
  91. // Fake selection editable - it is needed to render selection properly.
  92. Object.defineProperty( selection, 'editableElement', {
  93. get: function() {
  94. return selectionEditable;
  95. }
  96. } );
  97. } );
  98. it( 'should update attributes', () => {
  99. viewRoot.setAttribute( 'class', 'foo' );
  100. renderer.markToSync( 'attributes', viewRoot );
  101. renderer.render();
  102. expect( domRoot.getAttribute( 'class' ) ).to.equal( 'foo' );
  103. expect( renderer.markedAttributes.size ).to.equal( 0 );
  104. } );
  105. it( 'should remove attributes', () => {
  106. viewRoot.setAttribute( 'class', 'foo' );
  107. domRoot.setAttribute( 'id', 'bar' );
  108. domRoot.setAttribute( 'class', 'bar' );
  109. renderer.markToSync( 'attributes', viewRoot );
  110. renderer.render();
  111. expect( domRoot.getAttribute( 'class' ) ).to.equal( 'foo' );
  112. expect( domRoot.getAttribute( 'id' ) ).to.be.not.ok;
  113. expect( renderer.markedAttributes.size ).to.equal( 0 );
  114. } );
  115. it( 'should add children', () => {
  116. viewRoot.appendChildren( new ViewText( 'foo' ) );
  117. renderer.markToSync( 'children', viewRoot );
  118. renderer.render();
  119. expect( domRoot.childNodes.length ).to.equal( 1 );
  120. expect( domRoot.childNodes[ 0 ].data ).to.equal( 'foo' );
  121. expect( renderer.markedChildren.size ).to.equal( 0 );
  122. } );
  123. it( 'should remove children', () => {
  124. viewRoot.appendChildren( new ViewText( 'foo' ) );
  125. renderer.markToSync( 'children', viewRoot );
  126. renderer.render();
  127. expect( domRoot.childNodes.length ).to.equal( 1 );
  128. expect( domRoot.childNodes[ 0 ].data ).to.equal( 'foo' );
  129. viewRoot.removeChildren( 0, 1 );
  130. renderer.markToSync( 'children', viewRoot );
  131. renderer.render();
  132. expect( domRoot.childNodes.length ).to.equal( 0 );
  133. expect( renderer.markedChildren.size ).to.equal( 0 );
  134. } );
  135. it( 'should update text', () => {
  136. const viewText = new ViewText( 'foo' );
  137. viewRoot.appendChildren( viewText );
  138. renderer.markToSync( 'children', viewRoot );
  139. renderer.render();
  140. expect( domRoot.childNodes.length ).to.equal( 1 );
  141. expect( domRoot.childNodes[ 0 ].data ).to.equal( 'foo' );
  142. viewText.data = 'bar';
  143. renderer.markToSync( 'text', viewText );
  144. renderer.render();
  145. expect( domRoot.childNodes.length ).to.equal( 1 );
  146. expect( domRoot.childNodes[ 0 ].data ).to.equal( 'bar' );
  147. expect( renderer.markedTexts.size ).to.equal( 0 );
  148. } );
  149. it( 'should not update text parent child list changed', () => {
  150. const viewImg = new ViewElement( 'img' );
  151. const viewText = new ViewText( 'foo' );
  152. viewRoot.appendChildren( [ viewImg, viewText ] );
  153. renderer.markToSync( 'children', viewRoot );
  154. renderer.markToSync( 'text', viewText );
  155. renderer.render();
  156. expect( domRoot.childNodes.length ).to.equal( 2 );
  157. expect( domRoot.childNodes[ 0 ].tagName ).to.equal( 'IMG' );
  158. expect( domRoot.childNodes[ 1 ].data ).to.equal( 'foo' );
  159. } );
  160. it( 'should not change text if it is the same during text rendering', () => {
  161. const viewText = new ViewText( 'foo' );
  162. viewRoot.appendChildren( viewText );
  163. renderer.markToSync( 'children', viewRoot );
  164. renderer.render();
  165. // This should not be changed during the render.
  166. const domText = domRoot.childNodes[ 0 ];
  167. renderer.markToSync( 'text', viewText );
  168. renderer.render();
  169. expect( domRoot.childNodes.length ).to.equal( 1 );
  170. expect( domRoot.childNodes[ 0 ] ).to.equal( domText );
  171. } );
  172. it( 'should not change text if it is the same during children rendering', () => {
  173. const viewText = new ViewText( 'foo' );
  174. viewRoot.appendChildren( viewText );
  175. renderer.markToSync( 'children', viewRoot );
  176. renderer.render();
  177. // This should not be changed during the render.
  178. const domText = domRoot.childNodes[ 0 ];
  179. renderer.markToSync( 'children', viewRoot );
  180. renderer.render();
  181. expect( domRoot.childNodes.length ).to.equal( 1 );
  182. expect( domRoot.childNodes[ 0 ] ).to.equal( domText );
  183. } );
  184. it( 'should not change element if it is the same', () => {
  185. const viewImg = new ViewElement( 'img' );
  186. viewRoot.appendChildren( viewImg );
  187. // This should not be changed during the render.
  188. const domImg = document.createElement( 'img' );
  189. domRoot.appendChild( domImg );
  190. domConverter.bindElements( domImg, viewImg );
  191. renderer.markToSync( 'children', viewRoot );
  192. renderer.render();
  193. expect( domRoot.childNodes.length ).to.equal( 1 );
  194. expect( domRoot.childNodes[ 0 ] ).to.equal( domImg );
  195. } );
  196. it( 'should change element if it is different', () => {
  197. const viewImg = new ViewElement( 'img' );
  198. viewRoot.appendChildren( viewImg );
  199. renderer.markToSync( 'children', viewRoot );
  200. renderer.render();
  201. const viewP = new ViewElement( 'p' );
  202. viewRoot.removeChildren( 0, 1 );
  203. viewRoot.appendChildren( viewP );
  204. renderer.markToSync( 'children', viewRoot );
  205. renderer.render();
  206. expect( domRoot.childNodes.length ).to.equal( 1 );
  207. expect( domRoot.childNodes[ 0 ].tagName ).to.equal( 'P' );
  208. } );
  209. it( 'should update removed item when it is reinserted', () => {
  210. const viewFoo = new ViewText( 'foo' );
  211. const viewP = new ViewElement( 'p', null, viewFoo );
  212. const viewDiv = new ViewElement( 'div', null, viewP );
  213. viewRoot.appendChildren( viewDiv );
  214. renderer.markToSync( 'children', viewRoot );
  215. renderer.render();
  216. viewDiv.removeChildren( 0, 1 );
  217. renderer.markToSync( 'children', viewDiv );
  218. renderer.render();
  219. viewP.removeChildren( 0, 1 );
  220. viewDiv.appendChildren( viewP );
  221. renderer.markToSync( 'children', viewDiv );
  222. renderer.render();
  223. expect( domRoot.childNodes.length ).to.equal( 1 );
  224. const domDiv = domRoot.childNodes[ 0 ];
  225. expect( domDiv.tagName ).to.equal( 'DIV' );
  226. expect( domDiv.childNodes.length ).to.equal( 1 );
  227. const domP = domDiv.childNodes[ 0 ];
  228. expect( domP.tagName ).to.equal( 'P' );
  229. expect( domP.childNodes.length ).to.equal( 0 );
  230. } );
  231. it( 'should not throw when trying to update children of view element that got removed and lost its binding', () => {
  232. const viewFoo = new ViewText( 'foo' );
  233. const viewP = new ViewElement( 'p', null, viewFoo );
  234. const viewDiv = new ViewElement( 'div', null, viewP );
  235. viewRoot.appendChildren( viewDiv );
  236. renderer.markToSync( 'children', viewRoot );
  237. renderer.render();
  238. viewRoot.removeChildren( 0, 1 );
  239. renderer.markToSync( 'children', viewRoot );
  240. viewDiv.removeChildren( 0, 1 );
  241. renderer.markToSync( 'children', viewDiv );
  242. viewP.removeChildren( 0, 1 );
  243. renderer.markToSync( 'children', viewP );
  244. renderer.render();
  245. expect( domRoot.childNodes.length ).to.equal( 0 );
  246. } );
  247. it( 'should not care about filler if there is no DOM', () => {
  248. selectionEditable = null;
  249. const { view: viewP, selection: newSelection } = parse(
  250. '<container:p>foo<attribute:b>[]</attribute:b>bar</container:p>' );
  251. const viewRoot = new ViewElement( 'p' );
  252. viewRoot.appendChildren( viewP );
  253. selection.setTo( newSelection );
  254. renderer.markToSync( 'children', viewRoot );
  255. renderer.render();
  256. // Expect no error on render.
  257. expect( viewRoot ).to.be.ok;
  258. } );
  259. it( 'should add and remove inline filler in case <p>foo<b>[]</b>bar</p>', () => {
  260. const domSelection = document.getSelection();
  261. // Step 1: <p>foo<b>"FILLER{}"</b></p>
  262. const { view: viewP, selection: newSelection } = parse(
  263. '<container:p>foo<attribute:b>[]</attribute:b>bar</container:p>' );
  264. viewRoot.appendChildren( viewP );
  265. selection.setTo( newSelection );
  266. renderer.markToSync( 'children', viewRoot );
  267. renderer.render();
  268. expect( domRoot.childNodes.length ).to.equal( 1 );
  269. expect( domRoot.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'p' );
  270. const domP = domRoot.childNodes[ 0 ];
  271. expect( domP.childNodes.length ).to.equal( 3 );
  272. expect( domP.childNodes[ 0 ].data ).to.equal( 'foo' );
  273. expect( domP.childNodes[ 2 ].data ).to.equal( 'bar' );
  274. expect( domP.childNodes[ 1 ].tagName.toLowerCase() ).to.equal( 'b' );
  275. expect( domP.childNodes[ 1 ].childNodes.length ).to.equal( 1 );
  276. expect( domP.childNodes[ 1 ].childNodes[ 0 ].data ).to.equal( INLINE_FILLER );
  277. expect( domSelection.rangeCount ).to.equal( 1 );
  278. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 1 ].childNodes[ 0 ] );
  279. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( INLINE_FILLER_LENGTH );
  280. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  281. // Step 2: No mutation on second render
  282. renderer.markToSync( 'children', viewRoot );
  283. renderer.markToSync( 'children', viewP );
  284. renderAndExpectNoChanges( renderer, domRoot );
  285. // Step 3: <p>foo{}<b></b></p>
  286. selection.removeAllRanges();
  287. selection.addRange( ViewRange.createFromParentsAndOffsets( viewP.getChild( 0 ), 3, viewP.getChild( 0 ), 3 ) );
  288. renderer.render();
  289. expect( domP.childNodes.length ).to.equal( 3 );
  290. expect( domP.childNodes[ 0 ].data ).to.equal( 'foo' );
  291. expect( domP.childNodes[ 2 ].data ).to.equal( 'bar' );
  292. expect( domP.childNodes[ 1 ].tagName.toLowerCase() ).to.equal( 'b' );
  293. expect( domP.childNodes[ 1 ].childNodes.length ).to.equal( 0 );
  294. expect( domSelection.rangeCount ).to.equal( 1 );
  295. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 0 ] );
  296. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 3 );
  297. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  298. // Step 4: No mutation on second render
  299. renderer.markToSync( 'children', viewRoot );
  300. renderer.markToSync( 'children', viewP );
  301. renderAndExpectNoChanges( renderer, domRoot );
  302. } );
  303. it( 'should add and remove inline filler in case <p>[]<b>foo</b></p>', () => {
  304. const domSelection = document.getSelection();
  305. // Step 1: <p>"FILLER{}"<b>foo</b></p>
  306. const { view: viewP, selection: newSelection } = parse(
  307. '<container:p>[]<attribute:b>foo</attribute:b></container:p>' );
  308. viewRoot.appendChildren( viewP );
  309. selection.setTo( newSelection );
  310. renderer.markToSync( 'children', viewRoot );
  311. renderer.render();
  312. const domP = domRoot.childNodes[ 0 ];
  313. expect( domP.childNodes.length ).to.equal( 2 );
  314. expect( domP.childNodes[ 0 ].data ).to.equal( INLINE_FILLER );
  315. expect( domP.childNodes[ 1 ].tagName.toLowerCase() ).to.equal( 'b' );
  316. expect( domP.childNodes[ 1 ].childNodes.length ).to.equal( 1 );
  317. expect( domP.childNodes[ 1 ].childNodes[ 0 ].data ).to.equal( 'foo' );
  318. expect( domSelection.rangeCount ).to.equal( 1 );
  319. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 0 ] );
  320. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( INLINE_FILLER_LENGTH );
  321. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  322. // Step 2: No mutation on second render
  323. renderer.markToSync( 'children', viewP );
  324. renderAndExpectNoChanges( renderer, domRoot );
  325. // Step 3: <p><b>{}foo</b></p>
  326. selection.removeAllRanges();
  327. selection.addRange( ViewRange.createFromParentsAndOffsets(
  328. viewP.getChild( 0 ).getChild( 0 ), 0, viewP.getChild( 0 ).getChild( 0 ), 0 ) );
  329. renderer.render();
  330. expect( domP.childNodes.length ).to.equal( 1 );
  331. expect( domP.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'b' );
  332. expect( domP.childNodes[ 0 ].childNodes.length ).to.equal( 1 );
  333. expect( domP.childNodes[ 0 ].childNodes[ 0 ].data ).to.equal( 'foo' );
  334. expect( domSelection.rangeCount ).to.equal( 1 );
  335. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 0 ] .childNodes[ 0 ] );
  336. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 0 );
  337. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  338. // Step 4: No mutation on second render
  339. renderer.markToSync( 'children', viewP );
  340. renderAndExpectNoChanges( renderer, domRoot );
  341. } );
  342. it( 'should add and remove inline filler in case <p><b>foo</b>[]</p>', () => {
  343. const domSelection = document.getSelection();
  344. // Step 1: <p>"FILLER{}"<b>foo</b></p>
  345. const { view: viewP, selection: newSelection } = parse(
  346. '<container:p><attribute:b>foo</attribute:b>[]</container:p>' );
  347. viewRoot.appendChildren( viewP );
  348. selection.setTo( newSelection );
  349. renderer.markToSync( 'children', viewRoot );
  350. renderer.render();
  351. const domP = domRoot.childNodes[ 0 ];
  352. expect( domP.childNodes.length ).to.equal( 2 );
  353. expect( domP.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'b' );
  354. expect( domP.childNodes[ 0 ].childNodes.length ).to.equal( 1 );
  355. expect( domP.childNodes[ 0 ].childNodes[ 0 ].data ).to.equal( 'foo' );
  356. expect( domP.childNodes[ 1 ].data ).to.equal( INLINE_FILLER );
  357. expect( domSelection.rangeCount ).to.equal( 1 );
  358. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 1 ] );
  359. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( INLINE_FILLER_LENGTH );
  360. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  361. // Step 2: No mutation on second render
  362. renderer.markToSync( 'children', viewP );
  363. renderAndExpectNoChanges( renderer, domRoot );
  364. // Step 3: <p><b>foo{}</b></p>
  365. selection.removeAllRanges();
  366. selection.addRange( ViewRange.createFromParentsAndOffsets(
  367. viewP.getChild( 0 ).getChild( 0 ), 3, viewP.getChild( 0 ).getChild( 0 ), 3 ) );
  368. renderer.render();
  369. expect( domP.childNodes.length ).to.equal( 1 );
  370. expect( domP.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'b' );
  371. expect( domP.childNodes[ 0 ].childNodes.length ).to.equal( 1 );
  372. expect( domP.childNodes[ 0 ].childNodes[ 0 ].data ).to.equal( 'foo' );
  373. expect( domSelection.rangeCount ).to.equal( 1 );
  374. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 0 ] .childNodes[ 0 ] );
  375. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 3 );
  376. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  377. // Step 4: No mutation on second render
  378. renderer.markToSync( 'children', viewP );
  379. renderAndExpectNoChanges( renderer, domRoot );
  380. } );
  381. it( 'should add and remove inline filler in case <p><b>foo</b>[]<b>bar</b></p>', () => {
  382. const domSelection = document.getSelection();
  383. const { view: viewP, selection: newSelection } = parse(
  384. '<container:p><attribute:b>foo</attribute:b>[]<attribute:b>bar</attribute:b></container:p>' );
  385. viewRoot.appendChildren( viewP );
  386. selection.setTo( newSelection );
  387. renderer.markToSync( 'children', viewRoot );
  388. renderer.render();
  389. const domP = domRoot.childNodes[ 0 ];
  390. expect( domP.childNodes.length ).to.equal( 3 );
  391. expect( domP.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'b' );
  392. expect( domP.childNodes[ 0 ].childNodes.length ).to.equal( 1 );
  393. expect( domP.childNodes[ 0 ].childNodes[ 0 ].data ).to.equal( 'foo' );
  394. expect( domP.childNodes[ 1 ].data ).to.equal( INLINE_FILLER );
  395. expect( domP.childNodes[ 2 ].tagName.toLowerCase() ).to.equal( 'b' );
  396. expect( domP.childNodes[ 2 ].childNodes.length ).to.equal( 1 );
  397. expect( domP.childNodes[ 2 ].childNodes[ 0 ].data ).to.equal( 'bar' );
  398. expect( domSelection.rangeCount ).to.equal( 1 );
  399. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 1 ] );
  400. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( INLINE_FILLER_LENGTH );
  401. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  402. } );
  403. it( 'should move filler when selection is moved', () => {
  404. // Step 1: <p>foo<b>"FILLER{}"</b></p>
  405. const { view: viewP, selection: newSelection } = parse(
  406. '<container:p>foo<attribute:b>[]</attribute:b><attribute:i></attribute:i></container:p>' );
  407. viewRoot.appendChildren( viewP );
  408. selection.setTo( newSelection );
  409. renderer.markToSync( 'children', viewRoot );
  410. renderer.render();
  411. const domP = domRoot.childNodes[ 0 ];
  412. expect( domP.childNodes.length ).to.equal( 3 );
  413. expect( domP.childNodes[ 0 ].data ).to.equal( 'foo' );
  414. expect( domP.childNodes[ 1 ].tagName.toLowerCase() ).to.equal( 'b' );
  415. expect( domP.childNodes[ 1 ].childNodes.length ).to.equal( 1 );
  416. expect( domP.childNodes[ 1 ].childNodes[ 0 ].data ).to.equal( INLINE_FILLER );
  417. expect( domP.childNodes[ 2 ].tagName.toLowerCase() ).to.equal( 'i' );
  418. expect( domP.childNodes[ 2 ].childNodes.length ).to.equal( 0 );
  419. // Step 2: <p>foo<b></b><i>"FILLER{}"</i></p>
  420. selection.removeAllRanges();
  421. const viewI = viewP.getChild( 2 );
  422. selection.addRange( ViewRange.createFromParentsAndOffsets( viewI, 0, viewI, 0 ) );
  423. renderer.render();
  424. expect( domP.childNodes.length ).to.equal( 3 );
  425. expect( domP.childNodes[ 0 ].data ).to.equal( 'foo' );
  426. expect( domP.childNodes[ 1 ].tagName.toLowerCase() ).to.equal( 'b' );
  427. expect( domP.childNodes[ 1 ].childNodes.length ).to.equal( 0 );
  428. expect( domP.childNodes[ 2 ].tagName.toLowerCase() ).to.equal( 'i' );
  429. expect( domP.childNodes[ 2 ].childNodes.length ).to.equal( 1 );
  430. expect( domP.childNodes[ 2 ].childNodes[ 0 ].data ).to.equal( INLINE_FILLER );
  431. } );
  432. it( 'should remove filler when text is added and selection removed', () => {
  433. // Step 1: <p>foo<b>"FILLER{}"</b></p>
  434. const { view: viewP, selection: newSelection } = parse( '<container:p>foo<attribute:b>[]</attribute:b></container:p>' );
  435. const viewB = viewP.getChild( 1 );
  436. viewRoot.appendChildren( viewP );
  437. selection.setTo( newSelection );
  438. renderer.markToSync( 'children', viewRoot );
  439. renderer.render();
  440. const domP = domRoot.childNodes[ 0 ];
  441. expect( domP.childNodes.length ).to.equal( 2 );
  442. expect( domP.childNodes[ 0 ].data ).to.equal( 'foo' );
  443. expect( domP.childNodes[ 1 ].tagName.toLowerCase() ).to.equal( 'b' );
  444. expect( domP.childNodes[ 1 ].childNodes.length ).to.equal( 1 );
  445. expect( domP.childNodes[ 1 ].childNodes[ 0 ].data ).to.equal( INLINE_FILLER );
  446. // Step 2: Add text node.
  447. const viewText = new ViewText( 'x' );
  448. viewB.appendChildren( viewText );
  449. selection.removeAllRanges();
  450. selection.addRange( ViewRange.createFromParentsAndOffsets( viewText, 1, viewText, 1 ) );
  451. renderer.markToSync( 'children', viewB );
  452. renderer.render();
  453. // Step 3: Remove selection from the view.
  454. selection.removeAllRanges();
  455. renderer.render();
  456. expect( domP.childNodes.length ).to.equal( 2 );
  457. expect( domP.childNodes[ 0 ].data ).to.equal( 'foo' );
  458. expect( domP.childNodes[ 1 ].tagName.toLowerCase() ).to.equal( 'b' );
  459. expect( domP.childNodes[ 1 ].childNodes.length ).to.equal( 1 );
  460. expect( domP.childNodes[ 1 ].childNodes[ 0 ].data ).to.equal( 'x' );
  461. } );
  462. // #659
  463. // The element before the filler is removed so the position of the filler
  464. // cannot be remembered as parent+offset.
  465. it( 'should remove filler from a modified DOM in case <p>bar<b>foo</b>[]</p>', () => {
  466. // Step 1: <p>bar<b>foo</b>"FILLER{}"</p>
  467. const { view: viewP, selection: newSelection } = parse( '<container:p>bar<attribute:b>foo</attribute:b>[]</container:p>' );
  468. viewRoot.appendChildren( viewP );
  469. selection.setTo( newSelection );
  470. renderer.markToSync( 'children', viewRoot );
  471. renderer.render();
  472. const domP = domRoot.childNodes[ 0 ];
  473. expect( domP.childNodes.length ).to.equal( 3 );
  474. expect( domP.childNodes[ 2 ].data ).to.equal( INLINE_FILLER );
  475. // Step 2: Remove the <b> and update the selection (<p>bar[]</p>).
  476. viewP.removeChildren( 1 );
  477. selection.removeAllRanges();
  478. selection.addRange( ViewRange.createFromParentsAndOffsets( viewP, 1, viewP, 1 ) );
  479. renderer.markToSync( 'children', viewP );
  480. renderer.render();
  481. // Step 3: Check whether there's no filler in the DOM.
  482. expect( domP.childNodes.length ).to.equal( 1 );
  483. expect( domP.childNodes[ 0 ].data ).to.equal( 'bar' );
  484. } );
  485. // #659
  486. it( 'should remove filler from a modified DOM when children moved', () => {
  487. // Step 1: <p><b>foo</b>"FILLER{}"<b>bar</b></p><p></p>
  488. const { view: viewFragment, selection: newSelection }
  489. = parse( '<container:p><attribute:b>foo</attribute:b>[]<attribute:b>bar</attribute:b></container:p><container:p></container:p>' );
  490. viewRoot.appendChildren( viewFragment );
  491. selection.setTo( newSelection );
  492. renderer.markToSync( 'children', viewRoot );
  493. renderer.render();
  494. expect( domRoot.childNodes.length ).to.equal( 2 );
  495. const domP = domRoot.childNodes[ 0 ];
  496. const domP2 = domRoot.childNodes[ 1 ];
  497. expect( domP.childNodes.length ).to.equal( 3 );
  498. expect( domP.childNodes[ 1 ].data ).to.equal( INLINE_FILLER );
  499. // Step 2: Move <b>foo</b><b>bar</b> to the second paragraph and leave collapsed selection in the first one.
  500. // <p>[]</p><p><b>foo</b><b>bar</b></p>
  501. const viewP = viewRoot.getChild( 0 );
  502. const viewP2 = viewRoot.getChild( 1 );
  503. const removedChildren = viewP.removeChildren( 0, 2 );
  504. viewP2.appendChildren( removedChildren );
  505. selection.removeAllRanges();
  506. selection.addRange( ViewRange.createFromParentsAndOffsets( viewP, 0, viewP, 0 ) );
  507. renderer.markToSync( 'children', viewP );
  508. renderer.markToSync( 'children', viewP2 );
  509. renderer.render();
  510. // Step 3: Check whether in the first paragraph there's a <br> filler and that
  511. // in the second one there are two <b> tags.
  512. expect( domP.childNodes.length ).to.equal( 1 );
  513. expect( isBlockFiller( domP.childNodes[ 0 ], BR_FILLER ) ).to.be.true;
  514. expect( domP2.childNodes.length ).to.equal( 2 );
  515. expect( domP2.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'b' );
  516. expect( domP2.childNodes[ 1 ].tagName.toLowerCase() ).to.equal( 'b' );
  517. } );
  518. // Test for an edge case in the _isSelectionInInlineFiller which can be triggered like
  519. // in one of ckeditor/ckeditor5-typing#59 automated tests.
  520. it( 'should not break when selection is moved to a new element, when filler exists', () => {
  521. // Step 1: <p>bar<b>"FILLER{}"</b></p>
  522. const { view: viewP, selection: newSelection } = parse( '<container:p>bar<attribute:b>[]</attribute:b></container:p>' );
  523. viewRoot.appendChildren( viewP );
  524. selection.setTo( newSelection );
  525. renderer.markToSync( 'children', viewRoot );
  526. renderer.render();
  527. const domP = domRoot.childNodes[ 0 ];
  528. expect( domP.childNodes.length ).to.equal( 2 );
  529. expect( domP.childNodes[ 1 ].childNodes[ 0 ].data ).to.equal( INLINE_FILLER );
  530. // Step 2: Move selection to a new attribute element and remove the previous one
  531. viewP.removeChildren( 1 ); // Remove <b>.
  532. const viewI = parse( '<attribute:i></attribute:i>' );
  533. viewP.appendChildren( viewI );
  534. selection.removeAllRanges();
  535. selection.addRange( ViewRange.createFromParentsAndOffsets( viewI, 0, viewI, 0 ) );
  536. renderer.markToSync( 'children', viewP );
  537. renderer.render();
  538. // Step 3: Check whether new filler was created in the <i> element.
  539. expect( domP.childNodes.length ).to.equal( 2 );
  540. expect( domP.childNodes[ 1 ].tagName.toLowerCase() ).to.equal( 'i' );
  541. expect( domP.childNodes[ 1 ].childNodes[ 0 ].data ).to.equal( INLINE_FILLER );
  542. } );
  543. // Test for an edge case in the _isSelectionInInlineFiller, when selection is before a view element
  544. // that has not been yet rendered/bound to DOM.
  545. it( 'should remove inline filler if selection is before a view element not bound to dom', () => {
  546. // Step 1: <p>bar<b>abc</b>"FILLER"{}</p>
  547. const { view: viewP, selection: newSelection } = parse( '<container:p>bar<attribute:b>abc</attribute:b>[]</container:p>' );
  548. viewRoot.appendChildren( viewP );
  549. selection.setTo( newSelection );
  550. renderer.markToSync( 'children', viewRoot );
  551. renderer.render();
  552. const domP = domRoot.childNodes[ 0 ];
  553. expect( domP.childNodes.length ).to.equal( 3 );
  554. expect( domP.childNodes[ 2 ].data ).to.equal( INLINE_FILLER );
  555. // Step 2: Move selection to a new attribute element.
  556. const viewAbc = parse( 'abc' );
  557. viewP.appendChildren( viewAbc );
  558. selection.removeAllRanges();
  559. selection.addRange( ViewRange.createFromParentsAndOffsets( viewP, 3, viewP, 3 ) );
  560. renderer.markToSync( 'children', viewP );
  561. renderer.render();
  562. // Step 3: Check whether old filler was removed.
  563. expect( domP.childNodes.length ).to.equal( 3 );
  564. expect( domP.textContent.indexOf( INLINE_FILLER ) ).to.equal( -1 );
  565. } );
  566. it( 'should handle typing in empty block, do nothing if changes are already applied', () => {
  567. const domSelection = document.getSelection();
  568. const { view: viewP, selection: newSelection } = parse( '<container:p>[]</container:p>' );
  569. viewRoot.appendChildren( viewP );
  570. selection.setTo( newSelection );
  571. renderer.markToSync( 'children', viewRoot );
  572. renderer.render();
  573. const domP = domRoot.childNodes[ 0 ];
  574. expect( domP.childNodes.length ).to.equal( 1 );
  575. expect( isBlockFiller( domP.childNodes[ 0 ], BR_FILLER ) ).to.be.true;
  576. expect( domSelection.rangeCount ).to.equal( 1 );
  577. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP );
  578. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 0 );
  579. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  580. // Remove filler and add text node to both DOM and View <p>x{}</p>
  581. domP.removeChild( domP.childNodes[ 0 ] );
  582. domP.appendChild( document.createTextNode( 'x' ) );
  583. domSelection.removeAllRanges();
  584. const domRange = new Range();
  585. domRange.setStart( domP.childNodes[ 0 ], 1 );
  586. domRange.collapse( true );
  587. domSelection.addRange( domRange );
  588. const viewText = new ViewText( 'x' );
  589. viewP.appendChildren( viewText );
  590. selection.removeAllRanges();
  591. selection.addRange( ViewRange.createFromParentsAndOffsets( viewText, 1, viewText, 1 ) );
  592. renderer.markToSync( 'children', viewP );
  593. renderAndExpectNoChanges( renderer, domRoot );
  594. } );
  595. it( 'should handle typing in empty block, render if needed', () => {
  596. const domSelection = document.getSelection();
  597. const { view: viewP, selection: newSelection } = parse( '<container:p>[]</container:p>' );
  598. viewRoot.appendChildren( viewP );
  599. selection.setTo( newSelection );
  600. renderer.markToSync( 'children', viewRoot );
  601. renderer.render();
  602. const domP = domRoot.childNodes[ 0 ];
  603. expect( domP.childNodes.length ).to.equal( 1 );
  604. expect( isBlockFiller( domP.childNodes[ 0 ], BR_FILLER ) ).to.be.true;
  605. expect( domSelection.rangeCount ).to.equal( 1 );
  606. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP );
  607. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 0 );
  608. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  609. // Add text node only in View <p>x{}</p>
  610. const viewText = new ViewText( 'x' );
  611. viewP.appendChildren( viewText );
  612. selection.removeAllRanges();
  613. selection.addRange( ViewRange.createFromParentsAndOffsets( viewText, 1, viewText, 1 ) );
  614. renderer.markToSync( 'children', viewP );
  615. renderer.render();
  616. expect( domP.childNodes.length ).to.equal( 1 );
  617. expect( domP.childNodes[ 0 ].data ).to.equal( 'x' );
  618. expect( domSelection.rangeCount ).to.equal( 1 );
  619. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 0 ] );
  620. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 1 );
  621. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  622. } );
  623. it( 'should handle removing last character', () => {
  624. const domSelection = document.getSelection();
  625. const { view: viewP, selection: newSelection } = parse( '<container:p>x{}</container:p>' );
  626. viewRoot.appendChildren( viewP );
  627. selection.setTo( newSelection );
  628. renderer.markToSync( 'children', viewRoot );
  629. renderer.render();
  630. const domP = domRoot.childNodes[ 0 ];
  631. expect( domP.childNodes.length ).to.equal( 1 );
  632. expect( domP.childNodes[ 0 ].data ).to.equal( 'x' );
  633. expect( domSelection.rangeCount ).to.equal( 1 );
  634. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 0 ] );
  635. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 1 );
  636. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  637. // Remove text and add filler to both DOM and View <p>{}</p>
  638. domP.removeChild( domP.childNodes[ 0 ] );
  639. domP.appendChild( BR_FILLER( document ) );
  640. domSelection.removeAllRanges();
  641. const domRange = new Range();
  642. domRange.setStart( domP.childNodes[ 0 ], 0 );
  643. domRange.collapse( true );
  644. domSelection.addRange( domRange );
  645. viewP.removeChildren( 0 );
  646. selection.removeAllRanges();
  647. selection.addRange( ViewRange.createFromParentsAndOffsets( viewP, 0, viewP, 0 ) );
  648. renderer.markToSync( 'children', viewP );
  649. renderAndExpectNoChanges( renderer, domRoot );
  650. } );
  651. it( 'should handle typing in empty attribute, do nothing if changes are already applied', () => {
  652. const domSelection = document.getSelection();
  653. // 1. Render <p><b>FILLER{}</b>foo</p>.
  654. const { view: viewP, selection: newSelection } = parse(
  655. '<container:p><attribute:b>[]</attribute:b>foo</container:p>' );
  656. viewRoot.appendChildren( viewP );
  657. selection.setTo( newSelection );
  658. renderer.markToSync( 'children', viewRoot );
  659. renderer.render();
  660. // 2. Check the DOM.
  661. const domP = domRoot.childNodes[ 0 ];
  662. expect( domP.childNodes.length ).to.equal( 2 );
  663. expect( domP.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'b' );
  664. expect( domP.childNodes[ 1 ].data ).to.equal( 'foo' );
  665. const domB = domP.childNodes[ 0 ];
  666. const viewB = viewP.getChild( 0 );
  667. expect( domB.childNodes.length ).to.equal( 1 );
  668. expect( domB.childNodes[ 0 ].data ).to.equal( INLINE_FILLER );
  669. expect( domSelection.rangeCount ).to.equal( 1 );
  670. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domB.childNodes[ 0 ] );
  671. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( INLINE_FILLER_LENGTH );
  672. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  673. // 3. Add text node to both the DOM and the view: <p><b>FILLERx</b>foo</p>.
  674. domB.childNodes[ 0 ].data += 'x';
  675. domSelection.removeAllRanges();
  676. const domRange = new Range();
  677. domRange.setStart( domB.childNodes[ 0 ], INLINE_FILLER_LENGTH + 1 );
  678. domRange.collapse( true );
  679. domSelection.addRange( domRange );
  680. const viewText = new ViewText( 'x' );
  681. viewB.appendChildren( viewText );
  682. selection.removeAllRanges();
  683. selection.addRange( ViewRange.createFromParentsAndOffsets( viewText, 1, viewText, 1 ) );
  684. renderer.markToSync( 'children', viewP );
  685. renderAndExpectNoChanges( renderer, domRoot );
  686. } );
  687. it( 'should handle typing in empty attribute as a children change, render if needed', () => {
  688. const domSelection = document.getSelection();
  689. // 1. Render <p><b>FILLER{}</b>foo</p>.
  690. const { view: viewP, selection: newSelection } = parse(
  691. '<container:p><attribute:b>[]</attribute:b>foo</container:p>' );
  692. viewRoot.appendChildren( viewP );
  693. selection.setTo( newSelection );
  694. renderer.markToSync( 'children', viewRoot );
  695. renderer.render();
  696. // 2. Check the DOM.
  697. const domP = domRoot.childNodes[ 0 ];
  698. expect( domP.childNodes.length ).to.equal( 2 );
  699. expect( domP.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'b' );
  700. expect( domP.childNodes[ 1 ].data ).to.equal( 'foo' );
  701. const domB = domP.childNodes[ 0 ];
  702. const viewB = viewP.getChild( 0 );
  703. expect( domB.childNodes.length ).to.equal( 1 );
  704. expect( domB.childNodes[ 0 ].data ).to.equal( INLINE_FILLER );
  705. expect( domSelection.rangeCount ).to.equal( 1 );
  706. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domB.childNodes[ 0 ] );
  707. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( INLINE_FILLER_LENGTH );
  708. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  709. // 3. Add text node only to the view: <p><b>x{}</b>foo</p>.
  710. const viewText = new ViewText( 'x' );
  711. viewB.appendChildren( viewText );
  712. selection.removeAllRanges();
  713. selection.addRange( ViewRange.createFromParentsAndOffsets( viewText, 1, viewText, 1 ) );
  714. renderer.markToSync( 'children', viewB );
  715. renderer.render();
  716. expect( domB.childNodes.length ).to.equal( 1 );
  717. expect( domB.childNodes[ 0 ].data ).to.equal( INLINE_FILLER + 'x' );
  718. expect( domSelection.rangeCount ).to.equal( 1 );
  719. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domB.childNodes[ 0 ] );
  720. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( INLINE_FILLER_LENGTH + 1 );
  721. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  722. } );
  723. it( 'should handle typing in empty attribute as a text change, render if needed', () => {
  724. const domSelection = document.getSelection();
  725. // 1. Render <p><b>FILLER{}</b>foo</p>.
  726. const { view: viewP, selection: newSelection } = parse(
  727. '<container:p><attribute:b>[]</attribute:b>foo</container:p>' );
  728. viewRoot.appendChildren( viewP );
  729. selection.setTo( newSelection );
  730. renderer.markToSync( 'children', viewRoot );
  731. renderer.render();
  732. // 2. Check the DOM.
  733. const domP = domRoot.childNodes[ 0 ];
  734. expect( domP.childNodes.length ).to.equal( 2 );
  735. expect( domP.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'b' );
  736. expect( domP.childNodes[ 1 ].data ).to.equal( 'foo' );
  737. const domB = domP.childNodes[ 0 ];
  738. const viewB = viewP.getChild( 0 );
  739. expect( domB.childNodes.length ).to.equal( 1 );
  740. expect( domB.childNodes[ 0 ].data ).to.equal( INLINE_FILLER );
  741. expect( domSelection.rangeCount ).to.equal( 1 );
  742. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domB.childNodes[ 0 ] );
  743. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( INLINE_FILLER_LENGTH );
  744. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  745. // 3. Add text node only to the view: <p><b>x{}</b>foo</p>.
  746. const viewText = new ViewText( 'x' );
  747. viewB.appendChildren( viewText );
  748. selection.removeAllRanges();
  749. selection.addRange( ViewRange.createFromParentsAndOffsets( viewText, 1, viewText, 1 ) );
  750. renderer.markToSync( 'text', viewText );
  751. renderer.render();
  752. // 4. Check the DOM.
  753. expect( domB.childNodes.length ).to.equal( 1 );
  754. expect( domB.childNodes[ 0 ].data ).to.equal( INLINE_FILLER + 'x' );
  755. expect( domSelection.rangeCount ).to.equal( 1 );
  756. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domB.childNodes[ 0 ] );
  757. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( INLINE_FILLER_LENGTH + 1 );
  758. expect( domSelection.getRangeAt( 0 ).collapsed ).to.be.true;
  759. } );
  760. it( 'should handle not collapsed range', () => {
  761. const domSelection = document.getSelection();
  762. const { view: viewP, selection: newSelection } = parse(
  763. '<container:p>fo{o<attribute:b>b}ar</attribute:b></container:p>' );
  764. viewRoot.appendChildren( viewP );
  765. selection.setTo( newSelection );
  766. renderer.markToSync( 'children', viewRoot );
  767. renderer.render();
  768. const domP = domRoot.childNodes[ 0 ];
  769. expect( domP.childNodes.length ).to.equal( 2 );
  770. expect( domP.childNodes[ 0 ].data ).to.equal( 'foo' );
  771. expect( domP.childNodes[ 1 ].tagName.toLowerCase() ).to.equal( 'b' );
  772. expect( domP.childNodes[ 1 ].childNodes.length ).to.equal( 1 );
  773. expect( domP.childNodes[ 1 ].childNodes[ 0 ].data ).to.equal( 'bar' );
  774. expect( domSelection.rangeCount ).to.equal( 1 );
  775. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 0 ] );
  776. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 2 );
  777. expect( domSelection.getRangeAt( 0 ).endContainer ).to.equal( domP.childNodes[ 1 ].childNodes[ 0 ] );
  778. expect( domSelection.getRangeAt( 0 ).endOffset ).to.equal( 1 );
  779. renderer.markToSync( 'children', viewP );
  780. renderAndExpectNoChanges( renderer, domRoot );
  781. } );
  782. it( 'should not change selection if there is no editable with selection', () => {
  783. const domDiv = createElement( document, 'div', null, 'not editable' );
  784. document.body.appendChild( domDiv );
  785. const domSelection = document.getSelection();
  786. domSelection.removeAllRanges();
  787. const domRange = new Range();
  788. domRange.setStart( domDiv, 0 );
  789. domRange.collapse( true );
  790. domSelection.addRange( domRange );
  791. selectionEditable = null;
  792. const { view: viewP, selection: newSelection } = parse( '<container:p>fo{o}</container:p>' );
  793. viewRoot.appendChildren( viewP );
  794. selection.setTo( newSelection );
  795. renderer.render();
  796. expect( domSelection.rangeCount ).to.equal( 1 );
  797. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domDiv );
  798. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 0 );
  799. expect( domSelection.getRangeAt( 0 ).collapsed ).to.equal( true );
  800. } );
  801. it( 'should not change selection if there is no focus', () => {
  802. const domDiv = createElement( document, 'div', null, 'not editable' );
  803. document.body.appendChild( domDiv );
  804. const domSelection = document.getSelection();
  805. domSelection.removeAllRanges();
  806. const domRange = new Range();
  807. domRange.setStart( domDiv, 0 );
  808. domRange.collapse( true );
  809. domSelection.addRange( domRange );
  810. renderer.isFocused = false;
  811. const { view: viewP, selection: newSelection } = parse( '<container:p>fo{o}</container:p>' );
  812. viewRoot.appendChildren( viewP );
  813. selection.setTo( newSelection );
  814. renderer.render();
  815. expect( domSelection.rangeCount ).to.equal( 1 );
  816. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domDiv );
  817. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 0 );
  818. expect( domSelection.getRangeAt( 0 ).collapsed ).to.equal( true );
  819. } );
  820. it( 'should not add inline filler after text node', () => {
  821. const { view: viewP, selection: newSelection } = parse( '<container:p>foo[]</container:p>' );
  822. viewRoot.appendChildren( viewP );
  823. selection.setTo( newSelection );
  824. renderer.markToSync( 'children', viewRoot );
  825. renderer.render();
  826. const domP = domRoot.childNodes[ 0 ];
  827. expect( domP.innerHTML.indexOf( INLINE_FILLER ) ).to.equal( -1 );
  828. } );
  829. it( 'should throw if there is no filler in expected position', () => {
  830. const { view: viewP, selection: newSelection } = parse(
  831. '<container:p>foo<attribute:b>[]</attribute:b>bar</container:p>' );
  832. viewRoot.appendChildren( viewP );
  833. selection.setTo( newSelection );
  834. renderer.markToSync( 'children', viewRoot );
  835. renderer.render();
  836. const domB = domRoot.childNodes[ 0 ].childNodes[ 1 ];
  837. const viewB = viewP.getChild( 1 );
  838. expect( domB.childNodes[ 0 ].data ).to.equal( INLINE_FILLER );
  839. // Remove filler.
  840. domB.childNodes[ 0 ].data = '';
  841. selection.removeAllRanges();
  842. renderer.markToSync( 'children', viewB );
  843. expect( () => {
  844. renderer.render();
  845. } ).to.throw( CKEditorError, /^view-renderer-filler-was-lost/ );
  846. } );
  847. it( 'should handle focusing element', () => {
  848. const domFocusSpy = testUtils.sinon.spy( domRoot, 'focus' );
  849. const editable = selection.editableElement;
  850. renderer.render();
  851. expect( editable ).to.equal( viewRoot );
  852. expect( domFocusSpy.calledOnce ).to.be.true;
  853. } );
  854. it( 'should not focus editable if isFocues is set to false', () => {
  855. const domFocusSpy = testUtils.sinon.spy( domRoot, 'focus' );
  856. renderer.isFocused = false;
  857. renderer.render();
  858. expect( domFocusSpy.calledOnce ).to.be.false;
  859. } );
  860. it( 'should not focus already focused DOM element', () => {
  861. domRoot.setAttribute( 'contentEditable', true );
  862. domRoot.focus();
  863. const domFocusSpy = testUtils.sinon.spy( domRoot, 'focus' );
  864. renderer.render();
  865. expect( domFocusSpy.called ).to.be.false;
  866. } );
  867. describe( 'fake selection', () => {
  868. beforeEach( () => {
  869. const { view: viewP, selection: newSelection } = parse(
  870. '<container:p>[foo bar]</container:p>'
  871. );
  872. viewRoot.appendChildren( viewP );
  873. selection.setTo( newSelection );
  874. renderer.markToSync( 'children', viewRoot );
  875. renderer.render();
  876. } );
  877. it( 'should render fake selection', () => {
  878. const label = 'fake selection label';
  879. selection.setFake( true, { label } );
  880. renderer.render();
  881. expect( domRoot.childNodes.length ).to.equal( 2 );
  882. const container = domRoot.childNodes[ 1 ];
  883. expect( domConverter.getCorrespondingViewElement( container ) ).to.be.undefined;
  884. expect( container.childNodes.length ).to.equal( 1 );
  885. const textNode = container.childNodes[ 0 ];
  886. expect( textNode.textContent ).to.equal( label );
  887. const domSelection = domRoot.ownerDocument.getSelection();
  888. expect( domSelection.anchorNode ).to.equal( textNode );
  889. expect( domSelection.anchorOffset ).to.equal( 0 );
  890. expect( domSelection.focusNode ).to.equal( textNode );
  891. expect( domSelection.focusOffset ).to.equal( label.length );
  892. } );
  893. it( 'should render &nbsp; if no selection label is provided', () => {
  894. selection.setFake( true );
  895. renderer.render();
  896. expect( domRoot.childNodes.length ).to.equal( 2 );
  897. const container = domRoot.childNodes[ 1 ];
  898. expect( container.childNodes.length ).to.equal( 1 );
  899. const textNode = container.childNodes[ 0 ];
  900. expect( textNode.textContent ).to.equal( '\u00A0' );
  901. const domSelection = domRoot.ownerDocument.getSelection();
  902. expect( domSelection.anchorNode ).to.equal( textNode );
  903. expect( domSelection.anchorOffset ).to.equal( 0 );
  904. expect( domSelection.focusNode ).to.equal( textNode );
  905. expect( domSelection.focusOffset ).to.equal( 1 );
  906. } );
  907. it( 'should remove fake selection container when selection is no longer fake', () => {
  908. selection.setFake( true );
  909. renderer.render();
  910. selection.setFake( false );
  911. renderer.render();
  912. expect( domRoot.childNodes.length ).to.equal( 1 );
  913. const domParagraph = domRoot.childNodes[ 0 ];
  914. expect( domParagraph.childNodes.length ).to.equal( 1 );
  915. const textNode = domParagraph.childNodes[ 0 ];
  916. expect( domParagraph.tagName.toLowerCase() ).to.equal( 'p' );
  917. const domSelection = domRoot.ownerDocument.getSelection();
  918. expect( domSelection.anchorNode ).to.equal( textNode );
  919. expect( domSelection.anchorOffset ).to.equal( 0 );
  920. expect( domSelection.focusNode ).to.equal( textNode );
  921. expect( domSelection.focusOffset ).to.equal( 7 );
  922. } );
  923. it( 'should reuse fake selection container #1', () => {
  924. const label = 'fake selection label';
  925. selection.setFake( true, { label } );
  926. renderer.render();
  927. expect( domRoot.childNodes.length ).to.equal( 2 );
  928. const container = domRoot.childNodes[ 1 ];
  929. selection.setFake( true, { label } );
  930. renderer.render();
  931. expect( domRoot.childNodes.length ).to.equal( 2 );
  932. const newContainer = domRoot.childNodes[ 1 ];
  933. expect( newContainer ).equals( container );
  934. expect( newContainer.childNodes.length ).to.equal( 1 );
  935. const textNode = newContainer.childNodes[ 0 ];
  936. expect( textNode.textContent ).to.equal( label );
  937. } );
  938. it( 'should reuse fake selection container #2', () => {
  939. selection.setFake( true, { label: 'label 1' } );
  940. renderer.render();
  941. expect( domRoot.childNodes.length ).to.equal( 2 );
  942. const container = domRoot.childNodes[ 1 ];
  943. selection.setFake( false );
  944. renderer.render();
  945. expect( domRoot.childNodes.length ).to.equal( 1 );
  946. selection.setFake( true, { label: 'label 2' } );
  947. renderer.render();
  948. expect( domRoot.childNodes.length ).to.equal( 2 );
  949. const newContainer = domRoot.childNodes[ 1 ];
  950. expect( newContainer ).equals( container );
  951. expect( newContainer.childNodes.length ).to.equal( 1 );
  952. const textNode = newContainer.childNodes[ 0 ];
  953. expect( textNode.textContent ).to.equal( 'label 2' );
  954. } );
  955. it( 'should reuse fake selection container #3', () => {
  956. selection.setFake( true, { label: 'label 1' } );
  957. renderer.render();
  958. expect( domRoot.childNodes.length ).to.equal( 2 );
  959. const container = domRoot.childNodes[ 1 ];
  960. selection.setFake( true, { label: 'label 2' } );
  961. renderer.render();
  962. expect( domRoot.childNodes.length ).to.equal( 2 );
  963. const newContainer = domRoot.childNodes[ 1 ];
  964. expect( newContainer ).equals( container );
  965. expect( newContainer.childNodes.length ).to.equal( 1 );
  966. const textNode = newContainer.childNodes[ 0 ];
  967. expect( textNode.textContent ).to.equal( 'label 2' );
  968. } );
  969. it( 'should style fake selection container properly', () => {
  970. selection.setFake( true, { label: 'fake selection' } );
  971. renderer.render();
  972. expect( domRoot.childNodes.length ).to.equal( 2 );
  973. const container = domRoot.childNodes[ 1 ];
  974. expect( container.style.position ).to.equal( 'fixed' );
  975. expect( container.style.top ).to.equal( '0px' );
  976. expect( container.style.left ).to.equal( '-9999px' );
  977. } );
  978. it( 'should bind fake selection container to view selection', () => {
  979. selection.setFake( true, { label: 'fake selection' } );
  980. renderer.render();
  981. expect( domRoot.childNodes.length ).to.equal( 2 );
  982. const container = domRoot.childNodes[ 1 ];
  983. const bindSelection = renderer.domConverter.fakeSelectionToView( container );
  984. expect( bindSelection ).to.be.defined;
  985. expect( bindSelection.isEqual( selection ) ).to.be.true;
  986. } );
  987. } );
  988. // #887
  989. describe( 'similar selection', () => {
  990. // Use spies to check selection updates. Some selection positions are not achievable in some
  991. // browsers (e.g. <p>Foo<b>{}Bar</b></p> in Chrome) so asserting dom selection after rendering would fail.
  992. let selectionCollapseSpy, selectionExtendSpy;
  993. afterEach( () => {
  994. if ( selectionCollapseSpy ) {
  995. selectionCollapseSpy.restore();
  996. selectionCollapseSpy = null;
  997. }
  998. if ( selectionExtendSpy ) {
  999. selectionExtendSpy.restore();
  1000. selectionExtendSpy = null;
  1001. }
  1002. } );
  1003. it( 'should always render collapsed selection even if it is similar', () => {
  1004. const domSelection = document.getSelection();
  1005. const { view: viewP, selection: newSelection } = parse(
  1006. '<container:p>foo{}<attribute:b>bar</attribute:b></container:p>' );
  1007. viewRoot.appendChildren( viewP );
  1008. selection.setTo( newSelection );
  1009. renderer.markToSync( 'children', viewRoot );
  1010. renderer.render();
  1011. const domP = domRoot.childNodes[ 0 ];
  1012. const domB = domP.childNodes[ 1 ];
  1013. const viewB = viewRoot.getChild( 0 ).getChild( 1 );
  1014. expect( domSelection.isCollapsed ).to.true;
  1015. expect( domSelection.rangeCount ).to.equal( 1 );
  1016. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 0 ] );
  1017. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 3 );
  1018. expect( domSelection.getRangeAt( 0 ).endContainer ).to.equal( domP.childNodes[ 0 ] );
  1019. expect( domSelection.getRangeAt( 0 ).endOffset ).to.equal( 3 );
  1020. selectionCollapseSpy = sinon.spy( window.Selection.prototype, 'collapse' );
  1021. selectionExtendSpy = sinon.spy( window.Selection.prototype, 'extend' );
  1022. // <container:p>foo<attribute:b>{}bar</attribute:b></container:p>
  1023. selection.setRanges( [ new ViewRange( new ViewPosition( viewB.getChild( 0 ), 0 ), new ViewPosition( viewB.getChild( 0 ), 0 ) ) ] );
  1024. renderer.markToSync( 'children', viewP );
  1025. renderer.render();
  1026. expect( selectionCollapseSpy.calledOnce ).to.true;
  1027. expect( selectionCollapseSpy.calledWith( domB.childNodes[ 0 ], 0 ) ).to.true;
  1028. expect( selectionExtendSpy.calledOnce ).to.true;
  1029. expect( selectionExtendSpy.calledWith( domB.childNodes[ 0 ], 0 ) ).to.true;
  1030. } );
  1031. it( 'should always render collapsed selection even if it is similar (with empty element)', () => {
  1032. const domSelection = document.getSelection();
  1033. const { view: viewP, selection: newSelection } = parse(
  1034. '<container:p>foo<attribute:b>[]</attribute:b></container:p>' );
  1035. viewRoot.appendChildren( viewP );
  1036. selection.setTo( newSelection );
  1037. renderer.markToSync( 'children', viewRoot );
  1038. renderer.render();
  1039. const domP = domRoot.childNodes[ 0 ];
  1040. const domB = domP.childNodes[ 1 ];
  1041. expect( domSelection.isCollapsed ).to.true;
  1042. expect( domSelection.rangeCount ).to.equal( 1 );
  1043. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domB.childNodes[ 0 ] );
  1044. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( INLINE_FILLER_LENGTH );
  1045. expect( domSelection.getRangeAt( 0 ).endContainer ).to.equal( domB.childNodes[ 0 ] );
  1046. expect( domSelection.getRangeAt( 0 ).endOffset ).to.equal( INLINE_FILLER_LENGTH );
  1047. selectionCollapseSpy = sinon.spy( window.Selection.prototype, 'collapse' );
  1048. selectionExtendSpy = sinon.spy( window.Selection.prototype, 'extend' );
  1049. // <container:p>foo{}<attribute:b></attribute:b></container:p>
  1050. selection.setRanges( [ new ViewRange( new ViewPosition( viewP.getChild( 0 ), 3 ), new ViewPosition( viewP.getChild( 0 ), 3 ) ) ] );
  1051. renderer.markToSync( 'children', viewP );
  1052. renderer.render();
  1053. expect( selectionCollapseSpy.calledOnce ).to.true;
  1054. expect( selectionCollapseSpy.calledWith( domP.childNodes[ 0 ], 3 ) ).to.true;
  1055. expect( selectionExtendSpy.calledOnce ).to.true;
  1056. expect( selectionExtendSpy.calledWith( domP.childNodes[ 0 ], 3 ) ).to.true;
  1057. } );
  1058. it( 'should always render non-collapsed selection if it not is similar', () => {
  1059. const domSelection = document.getSelection();
  1060. const { view: viewP, selection: newSelection } = parse(
  1061. '<container:p>fo{o}<attribute:b>bar</attribute:b></container:p>' );
  1062. viewRoot.appendChildren( viewP );
  1063. selection.setTo( newSelection );
  1064. renderer.markToSync( 'children', viewRoot );
  1065. renderer.render();
  1066. const domP = domRoot.childNodes[ 0 ];
  1067. const domB = domP.childNodes[ 1 ];
  1068. const viewB = viewRoot.getChild( 0 ).getChild( 1 );
  1069. expect( domSelection.isCollapsed ).to.false;
  1070. expect( domSelection.rangeCount ).to.equal( 1 );
  1071. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 0 ] );
  1072. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 2 );
  1073. expect( domSelection.getRangeAt( 0 ).endContainer ).to.equal( domP.childNodes[ 0 ] );
  1074. expect( domSelection.getRangeAt( 0 ).endOffset ).to.equal( 3 );
  1075. selectionCollapseSpy = sinon.spy( window.Selection.prototype, 'collapse' );
  1076. selectionExtendSpy = sinon.spy( window.Selection.prototype, 'extend' );
  1077. // <container:p>fo{o<attribute:b>b}ar</attribute:b></container:p>
  1078. selection.setRanges( [ new ViewRange( new ViewPosition( viewP.getChild( 0 ), 2 ), new ViewPosition( viewB.getChild( 0 ), 1 ) ) ] );
  1079. renderer.markToSync( 'children', viewP );
  1080. renderer.render();
  1081. expect( selectionCollapseSpy.calledOnce ).to.true;
  1082. expect( selectionCollapseSpy.calledWith( domP.childNodes[ 0 ], 2 ) ).to.true;
  1083. expect( selectionExtendSpy.calledOnce ).to.true;
  1084. expect( selectionExtendSpy.calledWith( domB.childNodes[ 0 ], 1 ) ).to.true;
  1085. } );
  1086. it( 'should not render non-collapsed selection it is similar (element start)', () => {
  1087. const domSelection = document.getSelection();
  1088. const { view: viewP, selection: newSelection } = parse(
  1089. '<container:p>foo<attribute:b>{ba}r</attribute:b></container:p>' );
  1090. viewRoot.appendChildren( viewP );
  1091. selection.setTo( newSelection );
  1092. renderer.markToSync( 'children', viewRoot );
  1093. renderer.render();
  1094. const domP = domRoot.childNodes[ 0 ];
  1095. const domB = domP.childNodes[ 1 ];
  1096. const viewB = viewRoot.getChild( 0 ).getChild( 1 );
  1097. expect( domSelection.isCollapsed ).to.false;
  1098. expect( domSelection.rangeCount ).to.equal( 1 );
  1099. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domB.childNodes[ 0 ] );
  1100. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 0 );
  1101. expect( domSelection.getRangeAt( 0 ).endContainer ).to.equal( domB.childNodes[ 0 ] );
  1102. expect( domSelection.getRangeAt( 0 ).endOffset ).to.equal( 2 );
  1103. selectionCollapseSpy = sinon.spy( window.Selection.prototype, 'collapse' );
  1104. selectionExtendSpy = sinon.spy( window.Selection.prototype, 'extend' );
  1105. // <container:p>foo{<attribute:b>ba}r</attribute:b></container:p>
  1106. selection.setRanges( [ new ViewRange( new ViewPosition( viewP.getChild( 0 ), 3 ), new ViewPosition( viewB.getChild( 0 ), 2 ) ) ] );
  1107. renderer.markToSync( 'children', viewP );
  1108. renderer.render();
  1109. expect( selectionCollapseSpy.notCalled ).to.true;
  1110. expect( selectionExtendSpy.notCalled ).to.true;
  1111. } );
  1112. it( 'should not render non-collapsed selection it is similar (element end)', () => {
  1113. const domSelection = document.getSelection();
  1114. const { view: viewP, selection: newSelection } = parse(
  1115. '<container:p>foo<attribute:b>b{ar}</attribute:b>baz</container:p>' );
  1116. viewRoot.appendChildren( viewP );
  1117. selection.setTo( newSelection );
  1118. renderer.markToSync( 'children', viewRoot );
  1119. renderer.render();
  1120. const domP = domRoot.childNodes[ 0 ];
  1121. const domB = domP.childNodes[ 1 ];
  1122. const viewB = viewRoot.getChild( 0 ).getChild( 1 );
  1123. expect( domSelection.isCollapsed ).to.false;
  1124. expect( domSelection.rangeCount ).to.equal( 1 );
  1125. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domB.childNodes[ 0 ] );
  1126. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 1 );
  1127. expect( domSelection.getRangeAt( 0 ).endContainer ).to.equal( domB.childNodes[ 0 ] );
  1128. expect( domSelection.getRangeAt( 0 ).endOffset ).to.equal( 3 );
  1129. selectionCollapseSpy = sinon.spy( window.Selection.prototype, 'collapse' );
  1130. selectionExtendSpy = sinon.spy( window.Selection.prototype, 'extend' );
  1131. // <container:p>foo<attribute:b>b{ar</attribute:b>}baz</container:p>
  1132. selection.setRanges( [ new ViewRange( new ViewPosition( viewB.getChild( 0 ), 1 ), new ViewPosition( viewP.getChild( 2 ), 0 ) ) ] );
  1133. renderer.markToSync( 'children', viewP );
  1134. renderer.render();
  1135. expect( selectionCollapseSpy.notCalled ).to.true;
  1136. expect( selectionExtendSpy.notCalled ).to.true;
  1137. } );
  1138. it( 'should not render non-collapsed selection it is similar (element start - nested)', () => {
  1139. const domSelection = document.getSelection();
  1140. const { view: viewP, selection: newSelection } = parse(
  1141. '<container:p>foo<attribute:b><attribute:i>{ba}r</attribute:i></attribute:b></container:p>' );
  1142. viewRoot.appendChildren( viewP );
  1143. selection.setTo( newSelection );
  1144. renderer.markToSync( 'children', viewRoot );
  1145. renderer.render();
  1146. const domP = domRoot.childNodes[ 0 ];
  1147. const domB = domP.childNodes[ 1 ];
  1148. const viewI = viewRoot.getChild( 0 ).getChild( 1 ).getChild( 0 );
  1149. expect( domSelection.isCollapsed ).to.false;
  1150. expect( domSelection.rangeCount ).to.equal( 1 );
  1151. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domB.childNodes[ 0 ].childNodes[ 0 ] );
  1152. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 0 );
  1153. expect( domSelection.getRangeAt( 0 ).endContainer ).to.equal( domB.childNodes[ 0 ].childNodes[ 0 ] );
  1154. expect( domSelection.getRangeAt( 0 ).endOffset ).to.equal( 2 );
  1155. selectionCollapseSpy = sinon.spy( window.Selection.prototype, 'collapse' );
  1156. selectionExtendSpy = sinon.spy( window.Selection.prototype, 'extend' );
  1157. // <container:p>foo{<attribute:b><attribute:i>ba}r</attribute:i></attribute:b></container:p>
  1158. selection.setRanges( [ new ViewRange( new ViewPosition( viewP.getChild( 0 ), 3 ), new ViewPosition( viewI.getChild( 0 ), 2 ) ) ] );
  1159. renderer.markToSync( 'children', viewP );
  1160. renderer.render();
  1161. expect( selectionCollapseSpy.notCalled ).to.true;
  1162. expect( selectionExtendSpy.notCalled ).to.true;
  1163. } );
  1164. it( 'should not render non-collapsed selection it is similar (element end - nested)', () => {
  1165. const domSelection = document.getSelection();
  1166. const { view: viewP, selection: newSelection } = parse(
  1167. '<container:p>f{oo<attribute:b><attribute:i>bar}</attribute:i></attribute:b>baz</container:p>' );
  1168. viewRoot.appendChildren( viewP );
  1169. selection.setTo( newSelection );
  1170. renderer.markToSync( 'children', viewRoot );
  1171. renderer.render();
  1172. const domP = domRoot.childNodes[ 0 ];
  1173. const domB = domP.childNodes[ 1 ];
  1174. expect( domSelection.isCollapsed ).to.false;
  1175. expect( domSelection.rangeCount ).to.equal( 1 );
  1176. expect( domSelection.getRangeAt( 0 ).startContainer ).to.equal( domP.childNodes[ 0 ] );
  1177. expect( domSelection.getRangeAt( 0 ).startOffset ).to.equal( 1 );
  1178. expect( domSelection.getRangeAt( 0 ).endContainer ).to.equal( domB.childNodes[ 0 ].childNodes[ 0 ] );
  1179. expect( domSelection.getRangeAt( 0 ).endOffset ).to.equal( 3 );
  1180. selectionCollapseSpy = sinon.spy( window.Selection.prototype, 'collapse' );
  1181. selectionExtendSpy = sinon.spy( window.Selection.prototype, 'extend' );
  1182. // <container:p>f{oo<attribute:b><attribute:i>bar</attribute:i></attribute:b>}baz</container:p>
  1183. selection.setRanges( [ new ViewRange( new ViewPosition( viewP.getChild( 0 ), 1 ), new ViewPosition( viewP.getChild( 2 ), 0 ) ) ] );
  1184. renderer.markToSync( 'children', viewP );
  1185. renderer.render();
  1186. expect( selectionCollapseSpy.notCalled ).to.true;
  1187. expect( selectionExtendSpy.notCalled ).to.true;
  1188. } );
  1189. } );
  1190. } );
  1191. } );
  1192. function renderAndExpectNoChanges( renderer, domRoot ) {
  1193. const config = {
  1194. childList: true,
  1195. characterData: true,
  1196. characterDataOldValue: true,
  1197. subtree: true
  1198. };
  1199. const mutationObserver = new window.MutationObserver( () => {
  1200. throw 'There should be not mutations';
  1201. } );
  1202. mutationObserver.observe( domRoot, config );
  1203. renderer.render();
  1204. const records = mutationObserver.takeRecords();
  1205. mutationObserver.disconnect();
  1206. expect( records.length ).to.equal( 0 );
  1207. }