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dom-to-view.js 16 KB

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  1. /**
  2. * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md.
  4. */
  5. /* globals Range, document */
  6. /* bender-tags: view, domconverter, browser-only */
  7. import ViewElement from '/ckeditor5/engine/view/element.js';
  8. import DomConverter from '/ckeditor5/engine/view/domconverter.js';
  9. import ViewDocumentFragment from '/ckeditor5/engine/view/documentfragment.js';
  10. import { INLINE_FILLER, INLINE_FILLER_LENGTH, NBSP_FILLER } from '/ckeditor5/engine/view/filler.js';
  11. import { parse, stringify } from '/tests/engine/_utils/view.js';
  12. import count from '/ckeditor5/utils/count.js';
  13. import createElement from '/ckeditor5/utils/dom/createelement.js';
  14. describe( 'DomConverter', () => {
  15. let converter;
  16. before( () => {
  17. converter = new DomConverter();
  18. } );
  19. describe( 'domToView', () => {
  20. it( 'should create tree of view elements from DOM elements', () => {
  21. const domImg = createElement( document, 'img' );
  22. const domText = document.createTextNode( 'foo' );
  23. const domP = createElement( document, 'p', { 'class': 'foo' }, [ domImg, domText ] );
  24. const viewImg = new ViewElement( 'img' );
  25. converter.bindElements( domImg, viewImg );
  26. const viewP = converter.domToView( domP );
  27. expect( viewP ).to.be.an.instanceof( ViewElement );
  28. expect( viewP.name ).to.equal( 'p' );
  29. expect( viewP.getAttribute( 'class' ) ).to.equal( 'foo' );
  30. expect( count( viewP.getAttributeKeys() ) ).to.equal( 1 );
  31. expect( viewP.childCount ).to.equal( 2 );
  32. expect( viewP.getChild( 0 ).name ).to.equal( 'img' );
  33. expect( viewP.getChild( 1 ).data ).to.equal( 'foo' );
  34. expect( converter.getCorrespondingDom( viewP ) ).to.not.equal( domP );
  35. expect( converter.getCorrespondingDom( viewP.getChild( 0 ) ) ).to.equal( domImg );
  36. } );
  37. it( 'should create tree of view elements from DOM elements and bind elements', () => {
  38. const domImg = createElement( document, 'img' );
  39. const domText = document.createTextNode( 'foo' );
  40. const domP = createElement( document, 'p', { 'class': 'foo' }, [ domImg, domText ] );
  41. const viewP = converter.domToView( domP, { bind: true } );
  42. expect( viewP ).to.be.an.instanceof( ViewElement );
  43. expect( viewP.name ).to.equal( 'p' );
  44. expect( viewP.getAttribute( 'class' ) ).to.equal( 'foo' );
  45. expect( count( viewP.getAttributeKeys() ) ).to.equal( 1 );
  46. expect( viewP.childCount ).to.equal( 2 );
  47. expect( viewP.getChild( 0 ).name ).to.equal( 'img' );
  48. expect( viewP.getChild( 1 ).data ).to.equal( 'foo' );
  49. expect( converter.getCorrespondingDom( viewP ) ).to.equal( domP );
  50. expect( converter.getCorrespondingDom( viewP.getChild( 0 ) ) ).to.equal( domP.childNodes[ 0 ] );
  51. } );
  52. it( 'should support unicode', () => {
  53. const domText = document.createTextNode( 'நிலைக்கு' );
  54. const domP = createElement( document, 'p', { 'class': 'foo' }, [ domText ] );
  55. const viewP = converter.domToView( domP, { bind: true } );
  56. expect( viewP.childCount ).to.equal( 1 );
  57. const viewText = viewP.getChild( 0 );
  58. expect( viewText.data ).to.equal( 'நிலைக்கு' );
  59. expect( converter.getCorrespondingDom( viewP ) ).to.equal( domP );
  60. expect( converter.getCorrespondingDom( viewP.getChild( 0 ) ) ).to.equal( domP.childNodes[ 0 ] );
  61. } );
  62. it( 'should create tree of view elements from DOM element without children', () => {
  63. const domImg = createElement( document, 'img' );
  64. const domText = document.createTextNode( 'foo' );
  65. const domP = createElement( document, 'p', { 'class': 'foo' }, [ domImg, domText ] );
  66. const viewImg = new ViewElement( 'img' );
  67. converter.bindElements( domImg, viewImg );
  68. const viewP = converter.domToView( domP, { withChildren: false } );
  69. expect( viewP ).to.be.an.instanceof( ViewElement );
  70. expect( viewP.name ).to.equal( 'p' );
  71. expect( viewP.getAttribute( 'class' ) ).to.equal( 'foo' );
  72. expect( count( viewP.getAttributeKeys() ) ).to.equal( 1 );
  73. expect( viewP.childCount ).to.equal( 0 );
  74. expect( converter.getCorrespondingDom( viewP ) ).to.not.equal( domP );
  75. } );
  76. it( 'should create view document fragment from DOM document fragment', () => {
  77. const domImg = createElement( document, 'img' );
  78. const domText = document.createTextNode( 'foo' );
  79. const domFragment = document.createDocumentFragment();
  80. domFragment.appendChild( domImg );
  81. domFragment.appendChild( domText );
  82. const viewFragment = converter.domToView( domFragment, { bind: true } );
  83. expect( viewFragment ).to.be.an.instanceof( ViewDocumentFragment );
  84. expect( viewFragment.childCount ).to.equal( 2 );
  85. expect( viewFragment.getChild( 0 ).name ).to.equal( 'img' );
  86. expect( viewFragment.getChild( 1 ).data ).to.equal( 'foo' );
  87. expect( converter.getCorrespondingDom( viewFragment ) ).to.equal( domFragment );
  88. expect( converter.getCorrespondingDom( viewFragment.getChild( 0 ) ) ).to.equal( domFragment.childNodes[ 0 ] );
  89. } );
  90. it( 'should create view document fragment from DOM document fragment without children', () => {
  91. const domImg = createElement( document, 'img' );
  92. const domText = document.createTextNode( 'foo' );
  93. const domFragment = document.createDocumentFragment();
  94. domFragment.appendChild( domImg );
  95. domFragment.appendChild( domText );
  96. const viewImg = new ViewElement( 'img' );
  97. converter.bindElements( domImg, viewImg );
  98. const viewFragment = converter.domToView( domFragment, { withChildren: false } );
  99. expect( viewFragment ).to.be.an.instanceof( ViewDocumentFragment );
  100. expect( viewFragment.childCount ).to.equal( 0 );
  101. expect( converter.getCorrespondingDom( viewFragment ) ).to.not.equal( domFragment );
  102. } );
  103. it( 'should return already bind document fragment', () => {
  104. const domFragment = document.createDocumentFragment();
  105. const viewFragment = new ViewDocumentFragment();
  106. converter.bindDocumentFragments( domFragment, viewFragment );
  107. const viewFragment2 = converter.domToView( domFragment );
  108. expect( viewFragment2 ).to.equal( viewFragment );
  109. } );
  110. it( 'should return null for block filler', () => {
  111. const domFiller = converter.blockFiller( document );
  112. const viewFiller = converter.domToView( domFiller );
  113. expect( viewFiller ).to.be.null;
  114. } );
  115. } );
  116. describe( 'domChildrenToView', () => {
  117. it( 'should convert children', () => {
  118. const domImg = createElement( document, 'img' );
  119. const domText = document.createTextNode( 'foo' );
  120. const domP = createElement( document, 'p', null, [ domImg, domText ] );
  121. const viewChildren = Array.from( converter.domChildrenToView( domP ) );
  122. expect( viewChildren.length ).to.equal( 2 );
  123. expect( stringify( viewChildren[ 0 ] ) ).to.equal( '<img></img>' );
  124. expect( stringify( viewChildren[ 1 ] ) ).to.equal( 'foo' );
  125. } );
  126. it( 'should skip filler', () => {
  127. const domFiller = converter.blockFiller( document );
  128. const domP = createElement( document, 'p', null, domFiller );
  129. const viewChildren = Array.from( converter.domChildrenToView( domP ) );
  130. expect( viewChildren.length ).to.equal( 0 );
  131. } );
  132. it( 'should pass options', () => {
  133. const domText = document.createTextNode( 'foo' );
  134. const domB = createElement( document, 'b', null, 'bar' );
  135. const domP = createElement( document, 'p', null, [ domB, domText ] );
  136. const viewChildren = Array.from( converter.domChildrenToView( domP, { withChildren: false } ) );
  137. expect( viewChildren.length ).to.equal( 2 );
  138. expect( stringify( viewChildren[ 0 ] ) ).to.equal( '<b></b>' );
  139. expect( stringify( viewChildren[ 1 ] ) ).to.equal( 'foo' );
  140. } );
  141. } );
  142. describe( 'domPositionToView', () => {
  143. it( 'should converter position in text', () => {
  144. const domText = document.createTextNode( 'foo' );
  145. const domB = createElement( document, 'b', null, 'bar' );
  146. const domP = createElement( document, 'p', null, [ domText, domB ] );
  147. const viewP = parse( '<p>foo<b>bar</b></p>' );
  148. converter.bindElements( domP, viewP );
  149. converter.bindElements( domB, viewP.getChild( 0 ) );
  150. const viewPosition = converter.domPositionToView( domText, 2 );
  151. expect( stringify( viewP, viewPosition ) ).to.equal( '<p>fo{}o<b>bar</b></p>' );
  152. } );
  153. it( 'should support unicode', () => {
  154. const domText = document.createTextNode( 'நிலைக்கு' );
  155. const domP = createElement( document, 'p', null, [ domText ] );
  156. const viewP = parse( '<p>நிலைக்கு</p>' );
  157. converter.bindElements( domP, viewP );
  158. const viewPosition = converter.domPositionToView( domText, 4 );
  159. expect( stringify( viewP, viewPosition ) ).to.equal( '<p>நிலை{}க்கு</p>' );
  160. } );
  161. it( 'should converter position in element', () => {
  162. const domText = document.createTextNode( 'foo' );
  163. const domB = createElement( document, 'b', null, 'bar' );
  164. const domP = createElement( document, 'p', null, [ domText, domB ] );
  165. const viewP = parse( '<p>foo<b>bar</b></p>' );
  166. converter.bindElements( domP, viewP );
  167. converter.bindElements( domB, viewP.getChild( 0 ) );
  168. const viewPosition = converter.domPositionToView( domP, 1 );
  169. expect( stringify( viewP, viewPosition ) ).to.equal( '<p>foo[]<b>bar</b></p>' );
  170. } );
  171. it( 'should converter position at the beginning', () => {
  172. const domText = document.createTextNode( 'foo' );
  173. const domP = createElement( document, 'p', null, domText );
  174. const viewP = parse( '<p>foo</p>' );
  175. converter.bindElements( domP, viewP );
  176. const viewPosition = converter.domPositionToView( domP, 0 );
  177. expect( stringify( viewP, viewPosition ) ).to.equal( '<p>[]foo</p>' );
  178. } );
  179. it( 'should converter position inside block filler', () => {
  180. const converter = new DomConverter( { blockFiller: NBSP_FILLER } );
  181. const domFiller = NBSP_FILLER( document );
  182. const domP = createElement( document, 'p', null, domFiller );
  183. const viewP = parse( '<p></p>' );
  184. converter.bindElements( domP, viewP );
  185. const viewPosition = converter.domPositionToView( domFiller, 0 );
  186. expect( stringify( viewP, viewPosition ) ).to.equal( '<p>[]</p>' );
  187. } );
  188. it( 'should converter position inside inline filler', () => {
  189. const domFiller = document.createTextNode( INLINE_FILLER );
  190. const domText = document.createTextNode( 'foo' );
  191. const domB = createElement( document, 'b', null, domFiller );
  192. const domP = createElement( document, 'p', null, [ domText, domB ] );
  193. const viewP = parse( '<p>foo<b></b></p>' );
  194. converter.bindElements( domP, viewP );
  195. converter.bindElements( domB, viewP.getChild( 1 ) );
  196. const viewPosition = converter.domPositionToView( domFiller, INLINE_FILLER_LENGTH );
  197. expect( stringify( viewP, viewPosition ) ).to.equal( '<p>foo<b>[]</b></p>' );
  198. } );
  199. it( 'should converter position inside inline filler with text', () => {
  200. const domFiller = document.createTextNode( INLINE_FILLER + 'bar' );
  201. const domText = document.createTextNode( 'foo' );
  202. const domB = createElement( document, 'b', null, domFiller );
  203. const domP = createElement( document, 'p', null, [ domText, domB ] );
  204. const viewP = parse( '<p>foo<b>bar</b></p>' );
  205. converter.bindElements( domP, viewP );
  206. converter.bindElements( domB, viewP.getChild( 1 ) );
  207. const viewPosition = converter.domPositionToView( domFiller, INLINE_FILLER_LENGTH + 2 );
  208. expect( viewPosition.offset ).to.equal( 2 );
  209. expect( stringify( viewP, viewPosition ) ).to.equal( '<p>foo<b>ba{}r</b></p>' );
  210. } );
  211. it( 'should converter position inside inline filler with text at the beginning', () => {
  212. const domFiller = document.createTextNode( INLINE_FILLER + 'bar' );
  213. const domText = document.createTextNode( 'foo' );
  214. const domB = createElement( document, 'b', null, domFiller );
  215. const domP = createElement( document, 'p', null, [ domText, domB ] );
  216. const viewP = parse( '<p>foo<b>bar</b></p>' );
  217. converter.bindElements( domP, viewP );
  218. converter.bindElements( domB, viewP.getChild( 1 ) );
  219. const viewPosition = converter.domPositionToView( domFiller, INLINE_FILLER_LENGTH - 1 );
  220. expect( viewPosition.offset ).to.equal( 0 );
  221. expect( stringify( viewP, viewPosition ) ).to.equal( '<p>foo<b>{}bar</b></p>' );
  222. } );
  223. it( 'should converter position at the end', () => {
  224. const domText = document.createTextNode( 'foo' );
  225. const domP = createElement( document, 'p', null, domText );
  226. const viewP = parse( '<p>foo</p>' );
  227. converter.bindElements( domP, viewP );
  228. const viewPosition = converter.domPositionToView( domP, 1 );
  229. expect( stringify( viewP, viewPosition ) ).to.equal( '<p>foo[]</p>' );
  230. } );
  231. it( 'should return null if there is no corresponding parent node', () => {
  232. const domText = document.createTextNode( 'foo' );
  233. const domP = createElement( document, 'p', null, domText );
  234. const viewPosition = converter.domPositionToView( domP, 0 );
  235. expect( viewPosition ).to.be.null;
  236. } );
  237. it( 'should return null if there is no corresponding sibling node', () => {
  238. const domB = createElement( document, 'b', null, 'bar' );
  239. const domText = document.createTextNode( 'foo' );
  240. const domP = createElement( document, 'p', null, [ domB, domText ] );
  241. const viewPosition = converter.domPositionToView( domP, 1 );
  242. expect( viewPosition ).to.be.null;
  243. } );
  244. it( 'should return null if there is no corresponding text node', () => {
  245. const domText = document.createTextNode( 'foo' );
  246. const viewPosition = converter.domPositionToView( domText, 1 );
  247. expect( viewPosition ).to.be.null;
  248. } );
  249. } );
  250. describe( 'domRangeToView', () => {
  251. it( 'should converter DOM range', () => {
  252. const domFoo = document.createTextNode( 'foo' );
  253. const domBar = document.createTextNode( 'bar' );
  254. const domB = createElement( document, 'b', null, domBar );
  255. const domP = createElement( document, 'p', null, [ domFoo, domB ] );
  256. const viewP = parse( '<p>foo<b>bar</b></p>' );
  257. converter.bindElements( domP, viewP );
  258. converter.bindElements( domB, viewP.getChild( 1 ) );
  259. const domRange = new Range();
  260. domRange.setStart( domFoo, 1 );
  261. domRange.setEnd( domBar, 2 );
  262. const viewRange = converter.domRangeToView( domRange );
  263. expect( stringify( viewP, viewRange ) ).to.equal( '<p>f{oo<b>ba}r</b></p>' );
  264. } );
  265. it( 'should return null if start or end is null', () => {
  266. const domFoo = document.createTextNode( 'foo' );
  267. const domBar = document.createTextNode( 'bar' );
  268. const domB = createElement( document, 'b', null, domBar );
  269. createElement( document, 'p', null, [ domFoo, domB ] );
  270. const domRange = new Range();
  271. domRange.setStart( domFoo, 1 );
  272. domRange.setEnd( domBar, 2 );
  273. const viewRange = converter.domRangeToView( domRange );
  274. expect( viewRange ).to.be.null;
  275. } );
  276. } );
  277. describe( 'domSelectionToView', () => {
  278. it( 'should converter selection', () => {
  279. const domFoo = document.createTextNode( 'foo' );
  280. const domBar = document.createTextNode( 'bar' );
  281. const domB = createElement( document, 'b', null, domBar );
  282. const domP = createElement( document, 'p', null, [ domFoo, domB ] );
  283. const viewP = parse( '<p>foo<b>bar</b></p>' );
  284. converter.bindElements( domP, viewP );
  285. converter.bindElements( domB, viewP.getChild( 1 ) );
  286. document.body.appendChild( domP );
  287. const domRange = new Range();
  288. domRange.setStart( domFoo, 1 );
  289. domRange.setEnd( domBar, 2 );
  290. const domSelection = document.getSelection();
  291. domSelection.removeAllRanges();
  292. domSelection.addRange( domRange );
  293. const viewSelection = converter.domSelectionToView( domSelection );
  294. expect( viewSelection.rangeCount ).to.equal( 1 );
  295. expect( stringify( viewP, viewSelection.getFirstRange() ) ).to.equal( '<p>f{oo<b>ba}r</b></p>' );
  296. } );
  297. it( 'should converter empty selection to empty selection', () => {
  298. const domSelection = document.getSelection();
  299. domSelection.removeAllRanges();
  300. const viewSelection = converter.domSelectionToView( domSelection );
  301. expect( viewSelection.rangeCount ).to.equal( 0 );
  302. } );
  303. it( 'should not add null ranges', () => {
  304. const domFoo = document.createTextNode( 'foo' );
  305. const domBar = document.createTextNode( 'bar' );
  306. const domB = createElement( document, 'b', null, domBar );
  307. const domP = createElement( document, 'p', null, [ domFoo, domB ] );
  308. document.body.appendChild( domP );
  309. const domRange = new Range();
  310. domRange.setStart( domFoo, 1 );
  311. domRange.setEnd( domBar, 2 );
  312. const domSelection = document.getSelection();
  313. domSelection.removeAllRanges();
  314. domSelection.addRange( domRange );
  315. const viewSelection = converter.domSelectionToView( domSelection );
  316. expect( viewSelection.rangeCount ).to.equal( 0 );
  317. } );
  318. } );
  319. } );