liverange.js 19 KB

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  1. /**
  2. * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md.
  4. */
  5. /* bender-tags: model */
  6. import Document from 'ckeditor5/engine/model/document.js';
  7. import Element from 'ckeditor5/engine/model/element.js';
  8. import Position from 'ckeditor5/engine/model/position.js';
  9. import LiveRange from 'ckeditor5/engine/model/liverange.js';
  10. import Range from 'ckeditor5/engine/model/range.js';
  11. import Text from 'ckeditor5/engine/model/text.js';
  12. describe( 'LiveRange', () => {
  13. let doc, root, ul, p;
  14. before( () => {
  15. doc = new Document();
  16. root = doc.createRoot();
  17. let lis = [
  18. new Element( 'li', [], new Text( 'aaaaaaaaaa' ) ),
  19. new Element( 'li', [], new Text( 'bbbbbbbbbb' ) ),
  20. new Element( 'li', [], new Text( 'cccccccccc' ) ),
  21. new Element( 'li', [], new Text( 'dddddddddd' ) ),
  22. new Element( 'li', [], new Text( 'eeeeeeeeee' ) ),
  23. new Element( 'li', [], new Text( 'ffffffffff' ) ),
  24. new Element( 'li', [], new Text( 'gggggggggg' ) ),
  25. new Element( 'li', [], new Text( 'hhhhhhhhhh' ) )
  26. ];
  27. ul = new Element( 'ul', [], lis );
  28. p = new Element( 'p', [], new Text( 'qwertyuiop' ) );
  29. root.insertChildren( 0, [ ul, p, new Text( 'xyzxyz' ) ] );
  30. } );
  31. it( 'should be an instance of Range', () => {
  32. let live = new LiveRange( new Position( root, [ 0 ] ), new Position( root, [ 1 ] ) );
  33. live.detach();
  34. expect( live ).to.be.instanceof( Range );
  35. } );
  36. it( 'should listen to a change event of the document that owns this range', () => {
  37. sinon.spy( LiveRange.prototype, 'listenTo' );
  38. let live = new LiveRange( new Position( root, [ 0 ] ), new Position( root, [ 1 ] ) );
  39. live.detach();
  40. expect( live.listenTo.calledWith( doc, 'change' ) ).to.be.true;
  41. LiveRange.prototype.listenTo.restore();
  42. } );
  43. it( 'should stop listening when detached', () => {
  44. sinon.spy( LiveRange.prototype, 'stopListening' );
  45. let live = new LiveRange( new Position( root, [ 0 ] ), new Position( root, [ 1 ] ) );
  46. live.detach();
  47. expect( live.stopListening.called ).to.be.true;
  48. LiveRange.prototype.stopListening.restore();
  49. } );
  50. it( 'createIn should return LiveRange', () => {
  51. let range = LiveRange.createIn( p );
  52. expect( range ).to.be.instanceof( LiveRange );
  53. range.detach();
  54. } );
  55. it( 'createFromParentsAndOffsets should return LiveRange', () => {
  56. let range = LiveRange.createFromParentsAndOffsets( root, 0, p, 2 );
  57. expect( range ).to.be.instanceof( LiveRange );
  58. range.detach();
  59. } );
  60. it( 'createFromPositionAndShift should return LiveRange', () => {
  61. let range = LiveRange.createFromPositionAndShift( new Position( root, [ 0, 1 ] ), 4 );
  62. expect( range ).to.be.instanceof( LiveRange );
  63. range.detach();
  64. } );
  65. it( 'createFromRange should return LiveRange', () => {
  66. let range = LiveRange.createFromRange( new Range( new Position( root, [ 0 ] ), new Position( root, [ 1 ] ) ) );
  67. expect( range ).to.be.instanceof( LiveRange );
  68. range.detach();
  69. } );
  70. // Examples may seem weird when you compare them with the tree structure generated at the beginning of tests.
  71. // Since change event is fired _after_ operation is executed on tree model, you have to imagine that generated
  72. // structure is representing what is _after_ operation is executed. So live LiveRange properties are describing
  73. // virtual tree that is not existing anymore and event ranges are operating on the tree generated above.
  74. describe( 'should get transformed if', () => {
  75. let live, spy;
  76. beforeEach( () => {
  77. live = new LiveRange( new Position( root, [ 0, 1, 4 ] ), new Position( root, [ 0, 2, 2 ] ) );
  78. spy = sinon.spy();
  79. live.on( 'change', spy );
  80. } );
  81. afterEach( () => {
  82. live.detach();
  83. } );
  84. describe( 'insertion', () => {
  85. it( 'is in the same parent as range start and before it', () => {
  86. let insertRange = new Range( new Position( root, [ 0, 1, 0 ] ), new Position( root, [ 0, 1, 4 ] ) );
  87. doc.fire( 'change', 'insert', { range: insertRange }, null );
  88. expect( live.start.path ).to.deep.equal( [ 0, 1, 8 ] );
  89. expect( live.end.path ).to.deep.equal( [ 0, 2, 2 ] );
  90. expect( spy.calledOnce ).to.be.true;
  91. } );
  92. it( 'is in the same parent as range end and before it', () => {
  93. let insertRange = new Range( new Position( root, [ 0, 2, 0 ] ), new Position( root, [ 0, 2, 3 ] ) );
  94. doc.fire( 'change', 'insert', { range: insertRange }, null );
  95. expect( live.start.path ).to.deep.equal( [ 0, 1, 4 ] );
  96. expect( live.end.path ).to.deep.equal( [ 0, 2, 5 ] );
  97. expect( spy.calledOnce ).to.be.true;
  98. } );
  99. it( 'is at a position before a node from range start path', () => {
  100. let insertRange = new Range( new Position( root, [ 0, 0 ] ), new Position( root, [ 0, 2 ] ) );
  101. doc.fire( 'change', 'insert', { range: insertRange }, null );
  102. expect( live.start.path ).to.deep.equal( [ 0, 3, 4 ] );
  103. expect( live.end.path ).to.deep.equal( [ 0, 4, 2 ] );
  104. expect( spy.calledOnce ).to.be.true;
  105. } );
  106. it( 'is at a position before a node from range end path', () => {
  107. let insertRange = new Range( new Position( root, [ 0, 2 ] ), new Position( root, [ 0, 3 ] ) );
  108. doc.fire( 'change', 'insert', { range: insertRange }, null );
  109. expect( live.start.path ).to.deep.equal( [ 0, 1, 4 ] );
  110. expect( live.end.path ).to.deep.equal( [ 0, 3, 2 ] );
  111. expect( spy.calledOnce ).to.be.true;
  112. } );
  113. it( 'is at the live range start position and live range is collapsed', () => {
  114. live.end.path = [ 0, 1, 4 ];
  115. let insertRange = new Range( new Position( root, [ 0, 1, 4 ] ), new Position( root, [ 0, 1, 8 ] ) );
  116. doc.fire( 'change', 'insert', { range: insertRange }, null );
  117. expect( live.start.path ).to.deep.equal( [ 0, 1, 8 ] );
  118. expect( live.end.path ).to.deep.equal( [ 0, 1, 8 ] );
  119. expect( spy.calledOnce ).to.be.true;
  120. } );
  121. } );
  122. describe( 'range move', () => {
  123. it( 'is to the same parent as range start and before it', () => {
  124. let moveSource = new Position( root, [ 2 ] );
  125. let moveRange = new Range( new Position( root, [ 0, 1, 0 ] ), new Position( root, [ 0, 1, 4 ] ) );
  126. let changes = {
  127. range: moveRange,
  128. sourcePosition: moveSource
  129. };
  130. doc.fire( 'change', 'move', changes, null );
  131. expect( live.start.path ).to.deep.equal( [ 0, 1, 8 ] );
  132. expect( live.end.path ).to.deep.equal( [ 0, 2, 2 ] );
  133. expect( spy.calledOnce ).to.be.true;
  134. } );
  135. it( 'is to the same parent as range end and before it', () => {
  136. let moveSource = new Position( root, [ 3 ] );
  137. let moveRange = new Range( new Position( root, [ 0, 2, 0 ] ), new Position( root, [ 0, 2, 4 ] ) );
  138. let changes = {
  139. range: moveRange,
  140. sourcePosition: moveSource
  141. };
  142. doc.fire( 'change', 'move', changes, null );
  143. expect( live.start.path ).to.deep.equal( [ 0, 1, 4 ] );
  144. expect( live.end.path ).to.deep.equal( [ 0, 2, 6 ] );
  145. expect( spy.calledOnce ).to.be.true;
  146. } );
  147. it( 'is to a position before a node from range start path', () => {
  148. let moveSource = new Position( root, [ 2 ] );
  149. let moveRange = new Range( new Position( root, [ 0, 0 ] ), new Position( root, [ 0, 2 ] ) );
  150. let changes = {
  151. range: moveRange,
  152. sourcePosition: moveSource
  153. };
  154. doc.fire( 'change', 'move', changes, null );
  155. expect( live.start.path ).to.deep.equal( [ 0, 3, 4 ] );
  156. expect( live.end.path ).to.deep.equal( [ 0, 4, 2 ] );
  157. expect( spy.calledOnce ).to.be.true;
  158. } );
  159. it( 'is to a position before a node from range end path', () => {
  160. let moveSource = new Position( root, [ 2 ] );
  161. let moveRange = new Range( new Position( root, [ 0, 2 ] ), new Position( root, [ 0, 3 ] ) );
  162. let changes = {
  163. range: moveRange,
  164. sourcePosition: moveSource
  165. };
  166. doc.fire( 'change', 'move', changes, null );
  167. expect( live.start.path ).to.deep.equal( [ 0, 1, 4 ] );
  168. expect( live.end.path ).to.deep.equal( [ 0, 3, 2 ] );
  169. expect( spy.calledOnce ).to.be.true;
  170. } );
  171. it( 'is from the same parent as range start and before it', () => {
  172. let moveSource = new Position( root, [ 0, 1, 0 ] );
  173. let moveRange = new Range( new Position( root, [ 2, 0 ] ), new Position( root, [ 2, 3 ] ) );
  174. let changes = {
  175. range: moveRange,
  176. sourcePosition: moveSource
  177. };
  178. doc.fire( 'change', 'move', changes, null );
  179. expect( live.start.path ).to.deep.equal( [ 0, 1, 1 ] );
  180. expect( live.end.path ).to.deep.equal( [ 0, 2, 2 ] );
  181. expect( spy.calledOnce ).to.be.true;
  182. } );
  183. it( 'is from the same parent as range end and before it', () => {
  184. let moveSource = new Position( root, [ 0, 2, 0 ] );
  185. let moveRange = new Range( new Position( root, [ 2, 0 ] ), new Position( root, [ 2, 2 ] ) );
  186. let changes = {
  187. range: moveRange,
  188. sourcePosition: moveSource
  189. };
  190. doc.fire( 'change', 'move', changes, null );
  191. expect( live.start.path ).to.deep.equal( [ 0, 1, 4 ] );
  192. expect( live.end.path ).to.deep.equal( [ 0, 2, 0 ] );
  193. expect( spy.calledOnce ).to.be.true;
  194. } );
  195. it( 'is from a position before a node from range start path', () => {
  196. let moveSource = new Position( root, [ 0, 0 ] );
  197. let moveRange = new Range( new Position( root, [ 2, 0 ] ), new Position( root, [ 2, 1 ] ) );
  198. let changes = {
  199. range: moveRange,
  200. sourcePosition: moveSource
  201. };
  202. doc.fire( 'change', 'move', changes, null );
  203. expect( live.start.path ).to.deep.equal( [ 0, 0, 4 ] );
  204. expect( live.end.path ).to.deep.equal( [ 0, 1, 2 ] );
  205. expect( spy.calledOnce ).to.be.true;
  206. } );
  207. it( 'intersects on live range left side', () => {
  208. let moveSource = new Position( root, [ 0, 1, 2 ] );
  209. let moveRange = new Range( new Position( root, [ 2, 0 ] ), new Position( root, [ 2, 4 ] ) );
  210. let changes = {
  211. range: moveRange,
  212. sourcePosition: moveSource
  213. };
  214. doc.fire( 'change', 'move', changes, null );
  215. expect( live.start.path ).to.deep.equal( [ 0, 1, 2 ] );
  216. expect( live.end.path ).to.deep.equal( [ 0, 2, 2 ] );
  217. expect( spy.calledOnce ).to.be.true;
  218. } );
  219. it( 'intersects on live range right side', () => {
  220. let moveSource = new Position( root, [ 0, 2, 1 ] );
  221. let moveRange = new Range( new Position( root, [ 2, 0 ] ), new Position( root, [ 2, 4 ] ) );
  222. let changes = {
  223. range: moveRange,
  224. sourcePosition: moveSource
  225. };
  226. doc.fire( 'change', 'move', changes, null );
  227. expect( live.start.path ).to.deep.equal( [ 0, 1, 4 ] );
  228. expect( live.end.path ).to.deep.equal( [ 0, 2, 1 ] );
  229. expect( spy.calledOnce ).to.be.true;
  230. } );
  231. it( 'intersects on live range left side and live range new start is touching moved range end', () => {
  232. let moveSource = new Position( root, [ 0, 1, 0 ] );
  233. let moveRange = new Range( new Position( root, [ 0, 1 ] ), new Position( root, [ 0, 6 ] ) );
  234. let changes = {
  235. range: moveRange,
  236. sourcePosition: moveSource
  237. };
  238. doc.fire( 'change', 'move', changes, null );
  239. expect( live.start.path ).to.deep.equal( [ 0, 5 ] );
  240. expect( live.end.path ).to.deep.equal( [ 0, 7, 2 ] );
  241. expect( spy.calledOnce ).to.be.true;
  242. } );
  243. it( 'intersects on live range right side and live range new end is touching moved range start', () => {
  244. live.end.offset = 12;
  245. let moveSource = new Position( root, [ 0, 2, 10 ] );
  246. let moveRange = new Range( new Position( root, [ 0, 3, 0 ] ), new Position( root, [ 0, 3, 5 ] ) );
  247. let changes = {
  248. range: moveRange,
  249. sourcePosition: moveSource
  250. };
  251. doc.fire( 'change', 'move', changes, null );
  252. expect( live.start.path ).to.deep.equal( [ 0, 1, 4 ] );
  253. expect( live.end.path ).to.deep.equal( [ 0, 3, 2 ] );
  254. expect( spy.calledOnce ).to.be.true;
  255. } );
  256. it( 'is equal to live range', () => {
  257. live.end.path = [ 0, 1, 7 ];
  258. let moveSource = new Position( root, [ 0, 1, 4 ] );
  259. let moveRange = new Range( new Position( root, [ 0, 3, 0 ] ), new Position( root, [ 0, 3, 3 ] ) );
  260. let changes = {
  261. range: moveRange,
  262. sourcePosition: moveSource
  263. };
  264. doc.fire( 'change', 'move', changes, null );
  265. expect( live.start.path ).to.deep.equal( [ 0, 3, 0 ] );
  266. expect( live.end.path ).to.deep.equal( [ 0, 3, 3 ] );
  267. expect( spy.calledOnce ).to.be.true;
  268. } );
  269. it( 'contains live range', () => {
  270. live.end.path = [ 0, 1, 7 ];
  271. let moveSource = new Position( root, [ 0, 1, 3 ] );
  272. let moveRange = new Range( new Position( root, [ 0, 3, 0 ] ), new Position( root, [ 0, 3, 9 ] ) );
  273. let changes = {
  274. range: moveRange,
  275. sourcePosition: moveSource
  276. };
  277. doc.fire( 'change', 'move', changes, null );
  278. expect( live.start.path ).to.deep.equal( [ 0, 3, 1 ] );
  279. expect( live.end.path ).to.deep.equal( [ 0, 3, 4 ] );
  280. expect( spy.calledOnce ).to.be.true;
  281. } );
  282. it( 'is intersecting with live range and points to live range', () => {
  283. live.end.path = [ 0, 1, 12 ];
  284. let moveSource = new Position( root, [ 0, 1, 2 ] );
  285. let moveRange = new Range( new Position( root, [ 0, 1, 5 ] ), new Position( root, [ 0, 1, 9 ] ) );
  286. let changes = {
  287. range: moveRange,
  288. sourcePosition: moveSource
  289. };
  290. doc.fire( 'change', 'move', changes, null );
  291. expect( live.start.path ).to.deep.equal( [ 0, 1, 2 ] );
  292. expect( live.end.path ).to.deep.equal( [ 0, 1, 12 ] );
  293. expect( spy.calledOnce ).to.be.true;
  294. } );
  295. } );
  296. } );
  297. describe( 'should not get transformed if', () => {
  298. let otherRoot, spy;
  299. before( () => {
  300. otherRoot = doc.createRoot( '$root', 'otherRoot' );
  301. } );
  302. let live, clone;
  303. beforeEach( () => {
  304. live = new LiveRange( new Position( root, [ 0, 1, 4 ] ), new Position( root, [ 0, 2, 2 ] ) );
  305. clone = Range.createFromRange( live );
  306. spy = sinon.spy();
  307. live.on( 'change', spy );
  308. } );
  309. afterEach( () => {
  310. live.detach();
  311. } );
  312. describe( 'insertion', () => {
  313. it( 'is in the same parent as range start and after it', () => {
  314. let insertRange = new Range( new Position( root, [ 0, 1, 7 ] ), new Position( root, [ 0, 1, 9 ] ) );
  315. doc.fire( 'change', 'insert', { range: insertRange }, null );
  316. expect( live.isEqual( clone ) ).to.be.true;
  317. expect( spy.called ).to.be.false;
  318. } );
  319. it( 'is in the same parent as range end and after it', () => {
  320. let insertRange = new Range( new Position( root, [ 0, 2, 7 ] ), new Position( root, [ 0, 2, 9 ] ) );
  321. doc.fire( 'change', 'insert', { range: insertRange }, null );
  322. expect( live.isEqual( clone ) ).to.be.true;
  323. expect( spy.called ).to.be.false;
  324. } );
  325. it( 'is to a position after a node from range end path', () => {
  326. let insertRange = new Range( new Position( root, [ 3 ] ), new Position( root, [ 4 ] ) );
  327. doc.fire( 'change', 'insert', { range: insertRange }, null );
  328. expect( live.isEqual( clone ) ).to.be.true;
  329. expect( spy.called ).to.be.false;
  330. } );
  331. it( 'is in different root', () => {
  332. let insertRange = new Range( new Position( otherRoot, [ 0, 0 ] ), new Position( otherRoot, [ 0, 2 ] ) );
  333. doc.fire( 'change', 'insert', { range: insertRange }, null );
  334. expect( live.isEqual( clone ) ).to.be.true;
  335. expect( spy.called ).to.be.false;
  336. } );
  337. } );
  338. describe( 'range move', () => {
  339. it( 'is to the same parent as range start and after it', () => {
  340. let moveSource = new Position( root, [ 4 ] );
  341. let moveRange = new Range( new Position( root, [ 0, 1, 7 ] ), new Position( root, [ 0, 1, 9 ] ) );
  342. let changes = {
  343. range: moveRange,
  344. sourcePosition: moveSource
  345. };
  346. doc.fire( 'change', 'move', changes, null );
  347. expect( live.isEqual( clone ) ).to.be.true;
  348. expect( spy.called ).to.be.false;
  349. } );
  350. it( 'is to the same parent as range end and after it', () => {
  351. let moveSource = new Position( root, [ 4 ] );
  352. let moveRange = new Range( new Position( root, [ 0, 2, 3 ] ), new Position( root, [ 0, 2, 5 ] ) );
  353. let changes = {
  354. range: moveRange,
  355. sourcePosition: moveSource
  356. };
  357. doc.fire( 'change', 'move', changes, null );
  358. expect( live.isEqual( clone ) ).to.be.true;
  359. expect( spy.called ).to.be.false;
  360. } );
  361. it( 'is to a position after a node from range end path', () => {
  362. let moveSource = new Position( root, [ 4 ] );
  363. let moveRange = new Range( new Position( root, [ 0, 3 ] ), new Position( root, [ 0, 5 ] ) );
  364. let changes = {
  365. range: moveRange,
  366. sourcePosition: moveSource
  367. };
  368. doc.fire( 'change', 'move', changes, null );
  369. expect( live.isEqual( clone ) ).to.be.true;
  370. expect( spy.called ).to.be.false;
  371. } );
  372. it( 'is from the same parent as range start and after it', () => {
  373. let moveSource = new Position( root, [ 0, 1, 6 ] );
  374. let moveRange = new Range( new Position( root, [ 4, 0 ] ), new Position( root, [ 4, 3 ] ) );
  375. let changes = {
  376. range: moveRange,
  377. sourcePosition: moveSource
  378. };
  379. doc.fire( 'change', 'move', changes, null );
  380. expect( live.isEqual( clone ) ).to.be.true;
  381. expect( spy.called ).to.be.false;
  382. } );
  383. it( 'is from the same parent as range end and after it', () => {
  384. let moveSource = new Position( root, [ 0, 2, 4 ] );
  385. let moveRange = new Range( new Position( root, [ 4, 0 ] ), new Position( root, [ 4, 2 ] ) );
  386. let changes = {
  387. range: moveRange,
  388. sourcePosition: moveSource
  389. };
  390. doc.fire( 'change', 'move', changes, null );
  391. expect( live.isEqual( clone ) ).to.be.true;
  392. expect( spy.called ).to.be.false;
  393. } );
  394. it( 'is from a position after a node from range end path', () => {
  395. let moveSource = new Position( root, [ 0, 3 ] );
  396. let moveRange = new Range( new Position( root, [ 5, 0 ] ), new Position( root, [ 5, 1 ] ) );
  397. let changes = {
  398. range: moveRange,
  399. sourcePosition: moveSource
  400. };
  401. doc.fire( 'change', 'move', changes, null );
  402. expect( live.isEqual( clone ) ).to.be.true;
  403. expect( spy.called ).to.be.false;
  404. } );
  405. it( 'is to different root', () => {
  406. let moveSource = new Position( root, [ 2 ] );
  407. let moveRange = new Range( new Position( otherRoot, [ 0, 1, 0 ] ), new Position( otherRoot, [ 0, 1, 4 ] ) );
  408. let changes = {
  409. range: moveRange,
  410. sourcePosition: moveSource
  411. };
  412. doc.fire( 'change', 'move', changes, null );
  413. expect( live.isEqual( clone ) ).to.be.true;
  414. expect( spy.called ).to.be.false;
  415. } );
  416. it( 'is from different root', () => {
  417. let moveSource = new Position( otherRoot, [ 0, 2, 0 ] );
  418. let moveRange = new Range( new Position( root, [ 2, 0 ] ), new Position( root, [ 2, 2 ] ) );
  419. let changes = {
  420. range: moveRange,
  421. sourcePosition: moveSource
  422. };
  423. doc.fire( 'change', 'move', changes, null );
  424. expect( live.isEqual( clone ) ).to.be.true;
  425. expect( spy.called ).to.be.false;
  426. } );
  427. it( 'is inside live range and points to live range', () => {
  428. live.end.path = [ 0, 1, 12 ];
  429. let moveSource = new Position( root, [ 0, 1, 6 ] );
  430. let moveRange = new Range( new Position( root, [ 0, 1, 8 ] ), new Position( root, [ 0, 1, 10 ] ) );
  431. let changes = {
  432. range: moveRange,
  433. sourcePosition: moveSource
  434. };
  435. doc.fire( 'change', 'move', changes, null );
  436. expect( live.start.path ).to.deep.equal( [ 0, 1, 4 ] );
  437. expect( live.end.path ).to.deep.equal( [ 0, 1, 12 ] );
  438. expect( spy.calledOnce ).to.be.false;
  439. } );
  440. } );
  441. } );
  442. } );