downcastdispatcher.js 19 KB

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  1. /**
  2. * @license Copyright (c) 2003-2018, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md.
  4. */
  5. import DowncastDispatcher from '../../src/conversion/downcastdispatcher';
  6. import Model from '../../src/model/model';
  7. import ModelText from '../../src/model/text';
  8. import ModelElement from '../../src/model/element';
  9. import ModelRange from '../../src/model/range';
  10. import ModelPosition from '../../src/model/position';
  11. import View from '../../src/view/view';
  12. import ViewContainerElement from '../../src/view/containerelement';
  13. describe( 'DowncastDispatcher', () => {
  14. let dispatcher, doc, root, differStub, model, view;
  15. beforeEach( () => {
  16. model = new Model();
  17. view = new View();
  18. doc = model.document;
  19. dispatcher = new DowncastDispatcher();
  20. root = doc.createRoot();
  21. differStub = {
  22. getMarkersToRemove: () => [],
  23. getChanges: () => [],
  24. getMarkersToAdd: () => []
  25. };
  26. } );
  27. describe( 'constructor()', () => {
  28. it( 'should create DowncastDispatcher with given api', () => {
  29. const apiObj = {};
  30. const dispatcher = new DowncastDispatcher( { apiObj } );
  31. expect( dispatcher.conversionApi.apiObj ).to.equal( apiObj );
  32. } );
  33. } );
  34. describe( 'convertChanges', () => {
  35. it( 'should call convertInsert for insert change', () => {
  36. sinon.stub( dispatcher, 'convertInsert' );
  37. const position = new ModelPosition( root, [ 0 ] );
  38. const range = ModelRange.createFromPositionAndShift( position, 1 );
  39. differStub.getChanges = () => [ { type: 'insert', position, length: 1 } ];
  40. view.change( writer => {
  41. dispatcher.convertChanges( differStub, writer );
  42. } );
  43. expect( dispatcher.convertInsert.calledOnce ).to.be.true;
  44. expect( dispatcher.convertInsert.firstCall.args[ 0 ].isEqual( range ) ).to.be.true;
  45. } );
  46. it( 'should call convertRemove for remove change', () => {
  47. sinon.stub( dispatcher, 'convertRemove' );
  48. const position = new ModelPosition( root, [ 0 ] );
  49. differStub.getChanges = () => [ { type: 'remove', position, length: 2, name: '$text' } ];
  50. view.change( writer => {
  51. dispatcher.convertChanges( differStub, writer );
  52. } );
  53. expect( dispatcher.convertRemove.calledWith( position, 2, '$text' ) ).to.be.true;
  54. } );
  55. it( 'should call convertAttribute for attribute change', () => {
  56. sinon.stub( dispatcher, 'convertAttribute' );
  57. const position = new ModelPosition( root, [ 0 ] );
  58. const range = ModelRange.createFromPositionAndShift( position, 1 );
  59. differStub.getChanges = () => [
  60. { type: 'attribute', position, range, attributeKey: 'key', attributeOldValue: null, attributeNewValue: 'foo' }
  61. ];
  62. view.change( writer => {
  63. dispatcher.convertChanges( differStub, writer );
  64. } );
  65. expect( dispatcher.convertAttribute.calledWith( range, 'key', null, 'foo' ) ).to.be.true;
  66. } );
  67. it( 'should handle multiple changes', () => {
  68. sinon.stub( dispatcher, 'convertInsert' );
  69. sinon.stub( dispatcher, 'convertRemove' );
  70. sinon.stub( dispatcher, 'convertAttribute' );
  71. const position = new ModelPosition( root, [ 0 ] );
  72. const range = ModelRange.createFromPositionAndShift( position, 1 );
  73. differStub.getChanges = () => [
  74. { type: 'insert', position, length: 1 },
  75. { type: 'attribute', position, range, attributeKey: 'key', attributeOldValue: null, attributeNewValue: 'foo' },
  76. { type: 'remove', position, length: 1, name: 'paragraph' },
  77. { type: 'insert', position, length: 3 },
  78. ];
  79. view.change( writer => {
  80. dispatcher.convertChanges( differStub, writer );
  81. } );
  82. expect( dispatcher.convertInsert.calledTwice ).to.be.true;
  83. expect( dispatcher.convertRemove.calledOnce ).to.be.true;
  84. expect( dispatcher.convertAttribute.calledOnce ).to.be.true;
  85. } );
  86. it( 'should call convertMarkerAdd when markers are added', () => {
  87. sinon.stub( dispatcher, 'convertMarkerAdd' );
  88. const fooRange = ModelRange.createFromParentsAndOffsets( root, 0, root, 1 );
  89. const barRange = ModelRange.createFromParentsAndOffsets( root, 3, root, 6 );
  90. differStub.getMarkersToAdd = () => [
  91. { name: 'foo', range: fooRange },
  92. { name: 'bar', range: barRange }
  93. ];
  94. view.change( writer => {
  95. dispatcher.convertChanges( differStub, writer );
  96. } );
  97. expect( dispatcher.convertMarkerAdd.calledWith( 'foo', fooRange ) );
  98. expect( dispatcher.convertMarkerAdd.calledWith( 'bar', barRange ) );
  99. } );
  100. it( 'should call convertMarkerRemove when markers are removed', () => {
  101. sinon.stub( dispatcher, 'convertMarkerRemove' );
  102. const fooRange = ModelRange.createFromParentsAndOffsets( root, 0, root, 1 );
  103. const barRange = ModelRange.createFromParentsAndOffsets( root, 3, root, 6 );
  104. differStub.getMarkersToRemove = () => [
  105. { name: 'foo', range: fooRange },
  106. { name: 'bar', range: barRange }
  107. ];
  108. view.change( writer => {
  109. dispatcher.convertChanges( differStub, writer );
  110. } );
  111. expect( dispatcher.convertMarkerRemove.calledWith( 'foo', fooRange ) );
  112. expect( dispatcher.convertMarkerRemove.calledWith( 'bar', barRange ) );
  113. } );
  114. } );
  115. describe( 'convertInsert', () => {
  116. it( 'should fire event with correct parameters for every item in passed range', () => {
  117. root.appendChildren( [
  118. new ModelText( 'foo', { bold: true } ),
  119. new ModelElement( 'image' ),
  120. new ModelText( 'bar' ),
  121. new ModelElement( 'paragraph', { class: 'nice' }, new ModelText( 'xx', { italic: true } ) )
  122. ] );
  123. const range = ModelRange.createIn( root );
  124. const loggedEvents = [];
  125. // We will check everything connected with insert event:
  126. dispatcher.on( 'insert', ( evt, data, consumable ) => {
  127. // Check if the item is correct.
  128. const itemId = data.item.name ? data.item.name : '$text:' + data.item.data;
  129. // Check if the range is correct.
  130. const log = 'insert:' + itemId + ':' + data.range.start.path + ':' + data.range.end.path;
  131. loggedEvents.push( log );
  132. // Check if the event name is correct.
  133. expect( evt.name ).to.equal( 'insert:' + ( data.item.name || '$text' ) );
  134. // Check if model consumable is correct.
  135. expect( consumable.consume( data.item, 'insert' ) ).to.be.true;
  136. } );
  137. // Same here.
  138. dispatcher.on( 'attribute', ( evt, data, consumable ) => {
  139. const itemId = data.item.name ? data.item.name : '$text:' + data.item.data;
  140. const key = data.attributeKey;
  141. const value = data.attributeNewValue;
  142. const log = 'attribute:' + key + ':' + value + ':' + itemId + ':' + data.range.start.path + ':' + data.range.end.path;
  143. loggedEvents.push( log );
  144. expect( evt.name ).to.equal( 'attribute:' + key + ':' + ( data.item.name || '$text' ) );
  145. expect( consumable.consume( data.item, 'attribute:' + key ) ).to.be.true;
  146. } );
  147. dispatcher.convertInsert( range );
  148. // Check the data passed to called events and the order of them.
  149. expect( loggedEvents ).to.deep.equal( [
  150. 'insert:$text:foo:0:3',
  151. 'attribute:bold:true:$text:foo:0:3',
  152. 'insert:image:3:4',
  153. 'insert:$text:bar:4:7',
  154. 'insert:paragraph:7:8',
  155. 'attribute:class:nice:paragraph:7:8',
  156. 'insert:$text:xx:7,0:7,2',
  157. 'attribute:italic:true:$text:xx:7,0:7,2'
  158. ] );
  159. } );
  160. it( 'should not fire events for already consumed parts of model', () => {
  161. root.appendChildren( [
  162. new ModelElement( 'image', { src: 'foo.jpg', title: 'bar', bold: true }, [
  163. new ModelElement( 'caption', {}, new ModelText( 'title' ) )
  164. ] )
  165. ] );
  166. sinon.spy( dispatcher, 'fire' );
  167. dispatcher.on( 'insert:image', ( evt, data, consumable ) => {
  168. consumable.consume( data.item.getChild( 0 ), 'insert' );
  169. consumable.consume( data.item, 'attribute:bold' );
  170. } );
  171. const range = ModelRange.createIn( root );
  172. dispatcher.convertInsert( range );
  173. expect( dispatcher.fire.calledWith( 'insert:image' ) ).to.be.true;
  174. expect( dispatcher.fire.calledWith( 'attribute:src:image' ) ).to.be.true;
  175. expect( dispatcher.fire.calledWith( 'attribute:title:image' ) ).to.be.true;
  176. expect( dispatcher.fire.calledWith( 'insert:$text' ) ).to.be.true;
  177. expect( dispatcher.fire.calledWith( 'attribute:bold:image' ) ).to.be.false;
  178. expect( dispatcher.fire.calledWith( 'insert:caption' ) ).to.be.false;
  179. } );
  180. } );
  181. describe( 'convertRemove', () => {
  182. it( 'should fire event for removed range', () => {
  183. const loggedEvents = [];
  184. dispatcher.on( 'remove:$text', ( evt, data ) => {
  185. const log = 'remove:' + data.position.path + ':' + data.length;
  186. loggedEvents.push( log );
  187. } );
  188. dispatcher.convertRemove( ModelPosition.createFromParentAndOffset( root, 3 ), 3, '$text' );
  189. expect( loggedEvents ).to.deep.equal( [ 'remove:3:3' ] );
  190. } );
  191. } );
  192. describe( 'convertSelection', () => {
  193. beforeEach( () => {
  194. dispatcher.off( 'selection' );
  195. root.appendChildren( new ModelText( 'foobar' ) );
  196. model.change( writer => {
  197. writer.setSelection( [
  198. new ModelRange( new ModelPosition( root, [ 1 ] ), new ModelPosition( root, [ 3 ] ) ),
  199. new ModelRange( new ModelPosition( root, [ 4 ] ), new ModelPosition( root, [ 5 ] ) )
  200. ] );
  201. } );
  202. } );
  203. it( 'should fire selection event', () => {
  204. sinon.spy( dispatcher, 'fire' );
  205. dispatcher.convertSelection( doc.selection, model.markers, [] );
  206. expect( dispatcher.fire.calledWith(
  207. 'selection',
  208. { selection: sinon.match.instanceOf( doc.selection.constructor ) }
  209. ) ).to.be.true;
  210. } );
  211. it( 'should prepare correct list of consumable values', () => {
  212. model.change( writer => {
  213. writer.setAttribute( 'bold', true, ModelRange.createIn( root ) );
  214. writer.setAttribute( 'italic', true, ModelRange.createFromParentsAndOffsets( root, 4, root, 5 ) );
  215. } );
  216. dispatcher.on( 'selection', ( evt, data, consumable ) => {
  217. expect( consumable.test( data.selection, 'selection' ) ).to.be.true;
  218. expect( consumable.test( data.selection, 'attribute:bold' ) ).to.be.true;
  219. expect( consumable.test( data.selection, 'attribute:italic' ) ).to.be.null;
  220. } );
  221. dispatcher.convertSelection( doc.selection, model.markers, [] );
  222. } );
  223. it( 'should not fire attributes events for non-collapsed selection', () => {
  224. model.change( writer => {
  225. writer.setAttribute( 'bold', true, ModelRange.createIn( root ) );
  226. writer.setAttribute( 'italic', true, ModelRange.createFromParentsAndOffsets( root, 4, root, 5 ) );
  227. } );
  228. sinon.spy( dispatcher, 'fire' );
  229. dispatcher.convertSelection( doc.selection, model.markers, [] );
  230. expect( dispatcher.fire.calledWith( 'attribute:bold' ) ).to.be.false;
  231. expect( dispatcher.fire.calledWith( 'attribute:italic' ) ).to.be.false;
  232. } );
  233. it( 'should fire attributes events for collapsed selection', () => {
  234. model.change( writer => {
  235. writer.setSelection(
  236. new ModelRange( new ModelPosition( root, [ 2 ] ), new ModelPosition( root, [ 2 ] ) )
  237. );
  238. } );
  239. model.change( writer => {
  240. writer.setAttribute( 'bold', true, ModelRange.createIn( root ) );
  241. } );
  242. sinon.spy( dispatcher, 'fire' );
  243. dispatcher.convertSelection( doc.selection, model.markers, [] );
  244. expect( dispatcher.fire.calledWith( 'attribute:bold' ) ).to.be.true;
  245. } );
  246. it( 'should not fire attributes events if attribute has been consumed', () => {
  247. model.change( writer => {
  248. writer.setSelection(
  249. new ModelRange( new ModelPosition( root, [ 2 ] ), new ModelPosition( root, [ 2 ] ) )
  250. );
  251. } );
  252. model.change( writer => {
  253. writer.setAttribute( 'bold', true, ModelRange.createIn( root ) );
  254. writer.setAttribute( 'italic', true, ModelRange.createFromParentsAndOffsets( root, 4, root, 5 ) );
  255. } );
  256. dispatcher.on( 'selection', ( evt, data, consumable ) => {
  257. consumable.consume( data.selection, 'attribute:bold' );
  258. } );
  259. sinon.spy( dispatcher, 'fire' );
  260. dispatcher.convertSelection( doc.selection, model.markers, [] );
  261. expect( dispatcher.fire.calledWith( 'attribute:bold' ) ).to.be.false;
  262. } );
  263. it( 'should fire events for markers for collapsed selection', () => {
  264. model.change( writer => {
  265. writer.setSelection(
  266. new ModelRange( new ModelPosition( root, [ 1 ] ), new ModelPosition( root, [ 1 ] ) )
  267. );
  268. writer.setMarker( 'name', ModelRange.createFromParentsAndOffsets( root, 0, root, 2 ) );
  269. } );
  270. sinon.spy( dispatcher, 'fire' );
  271. const markers = Array.from( model.markers.getMarkersAtPosition( doc.selection.getFirstPosition() ) );
  272. dispatcher.convertSelection( doc.selection, model.markers, markers );
  273. expect( dispatcher.fire.calledWith( 'addMarker:name' ) ).to.be.true;
  274. } );
  275. it( 'should not fire events for markers for non-collapsed selection', () => {
  276. model.change( writer => {
  277. writer.setMarker( 'name', ModelRange.createFromParentsAndOffsets( root, 0, root, 2 ) );
  278. } );
  279. sinon.spy( dispatcher, 'fire' );
  280. const markers = Array.from( model.markers.getMarkersAtPosition( doc.selection.getFirstPosition() ) );
  281. dispatcher.convertSelection( doc.selection, model.markers, markers );
  282. expect( dispatcher.fire.calledWith( 'addMarker:name' ) ).to.be.false;
  283. } );
  284. it( 'should not fire event for marker if selection is in a element with custom highlight handling', () => {
  285. // Clear after `beforeEach`.
  286. root.removeChildren( 0, root.childCount );
  287. const text = new ModelText( 'abc' );
  288. const caption = new ModelElement( 'caption', null, text );
  289. const image = new ModelElement( 'image', null, caption );
  290. root.appendChildren( [ image ] );
  291. // Create view elements that will be "mapped" to model elements.
  292. const viewCaption = new ViewContainerElement( 'caption' );
  293. const viewFigure = new ViewContainerElement( 'figure', null, viewCaption );
  294. // Create custom highlight handler mock.
  295. viewFigure._setCustomProperty( 'addHighlight', () => { } );
  296. viewFigure._setCustomProperty( 'removeHighlight', () => { } );
  297. // Create mapper mock.
  298. dispatcher.conversionApi.mapper = {
  299. toViewElement( modelElement ) {
  300. if ( modelElement == image ) {
  301. return viewFigure;
  302. } else if ( modelElement == caption ) {
  303. return viewCaption;
  304. }
  305. }
  306. };
  307. model.change( writer => {
  308. writer.setMarker( 'name', ModelRange.createFromParentsAndOffsets( root, 0, root, 1 ) );
  309. writer.setSelection( ModelRange.createFromParentsAndOffsets( caption, 1, caption, 1 ) );
  310. } );
  311. sinon.spy( dispatcher, 'fire' );
  312. const markers = Array.from( model.markers.getMarkersAtPosition( doc.selection.getFirstPosition() ) );
  313. dispatcher.convertSelection( doc.selection, model.markers, markers );
  314. expect( dispatcher.fire.calledWith( 'addMarker:name' ) ).to.be.false;
  315. } );
  316. it( 'should not fire events if information about marker has been consumed', () => {
  317. model.change( writer => {
  318. writer.setSelection(
  319. new ModelRange( new ModelPosition( root, [ 1 ] ), new ModelPosition( root, [ 1 ] ) )
  320. );
  321. writer.setMarker( 'foo', ModelRange.createFromParentsAndOffsets( root, 0, root, 2 ) );
  322. writer.setMarker( 'bar', ModelRange.createFromParentsAndOffsets( root, 0, root, 2 ) );
  323. } );
  324. sinon.spy( dispatcher, 'fire' );
  325. dispatcher.on( 'addMarker:foo', ( evt, data, consumable ) => {
  326. consumable.consume( data.item, 'addMarker:bar' );
  327. } );
  328. const markers = Array.from( model.markers.getMarkersAtPosition( doc.selection.getFirstPosition() ) );
  329. dispatcher.convertSelection( doc.selection, model.markers, markers );
  330. expect( dispatcher.fire.calledWith( 'addMarker:foo' ) ).to.be.true;
  331. expect( dispatcher.fire.calledWith( 'addMarker:bar' ) ).to.be.false;
  332. } );
  333. } );
  334. describe( 'convertMarkerAdd', () => {
  335. let range, element, text;
  336. beforeEach( () => {
  337. text = new ModelText( 'foo bar baz' );
  338. element = new ModelElement( 'paragraph', null, [ text ] );
  339. root.appendChildren( [ element ] );
  340. range = ModelRange.createFromParentsAndOffsets( element, 0, element, 4 );
  341. } );
  342. it( 'should fire addMarker event', () => {
  343. sinon.spy( dispatcher, 'fire' );
  344. dispatcher.convertMarkerAdd( 'name', range );
  345. expect( dispatcher.fire.calledWith( 'addMarker:name' ) ).to.be.true;
  346. } );
  347. it( 'should not convert marker if it is in graveyard', () => {
  348. const gyRange = ModelRange.createFromParentsAndOffsets( doc.graveyard, 0, doc.graveyard, 0 );
  349. sinon.spy( dispatcher, 'fire' );
  350. dispatcher.convertMarkerAdd( 'name', gyRange );
  351. expect( dispatcher.fire.called ).to.be.false;
  352. } );
  353. it( 'should not convert marker if it is not in model root', () => {
  354. const element = new ModelElement( 'element', null, new ModelText( 'foo' ) );
  355. const eleRange = ModelRange.createFromParentsAndOffsets( element, 1, element, 2 );
  356. sinon.spy( dispatcher, 'fire' );
  357. dispatcher.convertMarkerAdd( 'name', eleRange );
  358. expect( dispatcher.fire.called ).to.be.false;
  359. } );
  360. it( 'should fire conversion for each item in the range', () => {
  361. range = ModelRange.createIn( root );
  362. const items = [];
  363. dispatcher.on( 'addMarker:name', ( evt, data, consumable ) => {
  364. expect( data.markerName ).to.equal( 'name' );
  365. expect( data.markerRange.isEqual( range ) ).to.be.true;
  366. expect( consumable.test( data.item, 'addMarker:name' ) );
  367. items.push( data.item );
  368. } );
  369. dispatcher.convertMarkerAdd( 'name', range );
  370. expect( items[ 0 ] ).to.equal( element );
  371. expect( items[ 1 ].data ).to.equal( text.data );
  372. } );
  373. it( 'should be possible to override', () => {
  374. range = ModelRange.createIn( root );
  375. const addMarkerSpy = sinon.spy();
  376. const highAddMarkerSpy = sinon.spy();
  377. dispatcher.on( 'addMarker:marker', addMarkerSpy );
  378. dispatcher.on( 'addMarker:marker', evt => {
  379. highAddMarkerSpy();
  380. evt.stop();
  381. }, { priority: 'high' } );
  382. dispatcher.convertMarkerAdd( 'marker', range );
  383. expect( addMarkerSpy.called ).to.be.false;
  384. // Called once for each item, twice total.
  385. expect( highAddMarkerSpy.calledTwice ).to.be.true;
  386. } );
  387. } );
  388. describe( 'convertMarkerRemove', () => {
  389. let range, element, text;
  390. beforeEach( () => {
  391. text = new ModelText( 'foo bar baz' );
  392. element = new ModelElement( 'paragraph', null, [ text ] );
  393. root.appendChildren( [ element ] );
  394. range = ModelRange.createFromParentsAndOffsets( element, 0, element, 4 );
  395. } );
  396. it( 'should fire removeMarker event', () => {
  397. sinon.spy( dispatcher, 'fire' );
  398. dispatcher.convertMarkerRemove( 'name', range );
  399. expect( dispatcher.fire.calledWith( 'removeMarker:name' ) ).to.be.true;
  400. } );
  401. it( 'should not convert marker if it is in graveyard', () => {
  402. const gyRange = ModelRange.createFromParentsAndOffsets( doc.graveyard, 0, doc.graveyard, 0 );
  403. sinon.spy( dispatcher, 'fire' );
  404. dispatcher.convertMarkerRemove( 'name', gyRange );
  405. expect( dispatcher.fire.called ).to.be.false;
  406. } );
  407. it( 'should not convert marker if it is not in model root', () => {
  408. const element = new ModelElement( 'element', null, new ModelText( 'foo' ) );
  409. const eleRange = ModelRange.createFromParentsAndOffsets( element, 1, element, 2 );
  410. sinon.spy( dispatcher, 'fire' );
  411. dispatcher.convertMarkerRemove( 'name', eleRange );
  412. expect( dispatcher.fire.called ).to.be.false;
  413. } );
  414. it( 'should fire conversion for the range', () => {
  415. range = ModelRange.createIn( root );
  416. dispatcher.on( 'addMarker:name', ( evt, data ) => {
  417. expect( data.markerName ).to.equal( 'name' );
  418. expect( data.markerRange.isEqual( range ) ).to.be.true;
  419. } );
  420. dispatcher.convertMarkerRemove( 'name', range );
  421. } );
  422. it( 'should be possible to override', () => {
  423. range = ModelRange.createIn( root );
  424. const removeMarkerSpy = sinon.spy();
  425. const highRemoveMarkerSpy = sinon.spy();
  426. dispatcher.on( 'removeMarker:marker', removeMarkerSpy );
  427. dispatcher.on( 'removeMarker:marker', evt => {
  428. highRemoveMarkerSpy();
  429. evt.stop();
  430. }, { priority: 'high' } );
  431. dispatcher.convertMarkerRemove( 'marker', range );
  432. expect( removeMarkerSpy.called ).to.be.false;
  433. expect( highRemoveMarkerSpy.calledOnce ).to.be.true;
  434. } );
  435. } );
  436. } );