insertdelta.js 6.3 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, operation */
  6. import transformations from '/ckeditor5/engine/model/delta/basic-transformations.js';
  7. /*jshint unused: false*/
  8. import transform from '/ckeditor5/engine/model/delta/transform.js';
  9. import Element from '/ckeditor5/engine/model/element.js';
  10. import Position from '/ckeditor5/engine/model/position.js';
  11. import Range from '/ckeditor5/engine/model/range.js';
  12. import InsertDelta from '/ckeditor5/engine/model/delta/insertdelta.js';
  13. import SplitDelta from '/ckeditor5/engine/model/delta/splitdelta.js';
  14. import InsertOperation from '/ckeditor5/engine/model/operation/insertoperation.js';
  15. import MoveOperation from '/ckeditor5/engine/model/operation/moveoperation.js';
  16. import ReinsertOperation from '/ckeditor5/engine/model/operation/reinsertoperation.js';
  17. import { getNodesAndText, jsonParseStringify } from '/tests/engine/model/_utils/utils.js';
  18. import {
  19. applyDelta,
  20. expectDelta,
  21. getFilledDocument,
  22. getInsertDelta,
  23. getMergeDelta
  24. } from '/tests/engine/model/delta/transform/_utils/utils.js';
  25. describe( 'transform', () => {
  26. let doc, root, gy, baseVersion;
  27. beforeEach( () => {
  28. doc = getFilledDocument();
  29. root = doc.getRoot();
  30. gy = doc.graveyard;
  31. baseVersion = doc.version;
  32. } );
  33. describe( 'InsertDelta by', () => {
  34. let insertDelta, insertPosition, nodeA, nodeB;
  35. beforeEach( () => {
  36. nodeA = new Element( 'a' );
  37. nodeB = new Element( 'b' );
  38. insertPosition = new Position( root, [ 3, 3, 3 ] );
  39. insertDelta = getInsertDelta( insertPosition, [ nodeA, nodeB ], baseVersion );
  40. } );
  41. describe( 'InsertDelta', () => {
  42. it( 'should be resolved in a same way as two insert operations', () => {
  43. let insertPositionB = new Position( root, [ 3, 1 ] );
  44. let insertDeltaB = getInsertDelta( insertPositionB, [ new Element( 'c' ), new Element( 'd' ) ], baseVersion );
  45. let transformed = transform( insertDelta, insertDeltaB );
  46. expect( transformed.length ).to.equal( 1 );
  47. expectDelta( transformed[ 0 ], {
  48. type: InsertDelta,
  49. operations: [
  50. {
  51. type: InsertOperation,
  52. position: new Position( root, [ 3, 5, 3 ] ),
  53. nodes: [ nodeA, nodeB ],
  54. baseVersion: baseVersion + 1
  55. }
  56. ]
  57. } );
  58. } );
  59. } );
  60. describe( 'MergeDelta', () => {
  61. it( 'merge in same position as insert', () => {
  62. let mergeDelta = getMergeDelta( insertPosition, 4, 12, baseVersion );
  63. let transformed = transform( insertDelta, mergeDelta );
  64. baseVersion = mergeDelta.operations.length;
  65. // Expected: MergeOperation gets reversed (by special case of SplitDelta that has ReinsertOperation
  66. // instead of InsertOperation. Then InsertDelta is applied as is.
  67. expect( transformed.length ).to.equal( 2 );
  68. expectDelta( transformed[ 0 ], {
  69. type: SplitDelta,
  70. operations: [
  71. {
  72. type: ReinsertOperation,
  73. sourcePosition: new Position( gy, [ 0, 0 ] ),
  74. howMany: 1,
  75. targetPosition: new Position( root, [ 3, 3, 3 ] ),
  76. baseVersion: baseVersion
  77. },
  78. {
  79. type: MoveOperation,
  80. sourcePosition: new Position( root, [ 3, 3, 2, 4 ] ),
  81. howMany: 12,
  82. targetPosition: new Position( root, [ 3, 3, 3, 0 ] ),
  83. baseVersion: baseVersion + 1
  84. }
  85. ]
  86. } );
  87. expectDelta( transformed[ 1 ], {
  88. type: InsertDelta,
  89. operations: [
  90. {
  91. type: InsertOperation,
  92. position: Position.createFromPosition( insertPosition ),
  93. nodes: [ nodeA, nodeB ],
  94. baseVersion: baseVersion + 2
  95. }
  96. ]
  97. } );
  98. // Test if deltas do what they should after applying transformed delta.
  99. applyDelta( mergeDelta, doc );
  100. applyDelta( transformed[ 0 ], doc );
  101. applyDelta( transformed[ 1 ], doc );
  102. let nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 3, 3, 0 ] ), 6 ) );
  103. // Merge between X with "abcd" and P with "abcfoobarxyz" should be reversed and AB should be inserted between X and P.
  104. expect( nodesAndText ).to.equal( 'XXXXXabcdXAABBPabcfoobarxyzP' );
  105. } );
  106. it( 'merge the node that is parent of insert position (sticky move test)', () => {
  107. let mergeDelta = getMergeDelta( new Position( root, [ 3, 3 ] ), 1, 4, baseVersion );
  108. let transformed = transform( insertDelta, mergeDelta );
  109. baseVersion = mergeDelta.operations.length;
  110. // Expected: InsertOperation in InsertDelta has it's path updated.
  111. expect( transformed.length ).to.equal( 1 );
  112. expectDelta( transformed[ 0 ], {
  113. type: InsertDelta,
  114. operations: [
  115. {
  116. type: InsertOperation,
  117. position: new Position( root, [ 3, 2, 4 ] ),
  118. nodes: [ nodeA, nodeB ],
  119. baseVersion: baseVersion
  120. }
  121. ]
  122. } );
  123. // Test if deltas do what they should after applying transformed delta.
  124. applyDelta( mergeDelta, doc );
  125. applyDelta( transformed[ 0 ], doc );
  126. let nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 3, 2, 0 ] ), 7 ) );
  127. // Merge between X with "a" and DIV should be applied. AB should be inserted in new, correct position.
  128. expect( nodesAndText ).to.equal( 'aXXXXXabcdXAABBPabcfoobarxyzP' );
  129. } );
  130. it( 'merge at affected position but resolved by default OT', () => {
  131. let mergeDelta = getMergeDelta( new Position( root, [ 3 ] ), 1, 4, baseVersion );
  132. let transformed = transform( insertDelta, mergeDelta );
  133. baseVersion = mergeDelta.operations.length;
  134. // Expected: InsertOperation in InsertDelta has it's path updated.
  135. expect( transformed.length ).to.equal( 1 );
  136. expectDelta( transformed[ 0 ], {
  137. type: InsertDelta,
  138. operations: [
  139. {
  140. type: InsertOperation,
  141. position: new Position( root, [ 2, 4, 3 ] ),
  142. nodes: [ nodeA, nodeB ],
  143. baseVersion: baseVersion
  144. }
  145. ]
  146. } );
  147. // Test if deltas do what they should after applying transformed delta.
  148. applyDelta( mergeDelta, doc );
  149. applyDelta( transformed[ 0 ], doc );
  150. let nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 2, 0 ] ), 5 ) );
  151. // Merge between X with "a" and DIV should be applied. AB should be inserted in new, correct position.
  152. expect( nodesAndText ).to.equal( 'aXXXXXaXDIVXXXXXabcdXAABBPabcfoobarxyzPDIV' );
  153. } );
  154. } );
  155. } );
  156. } );