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renderer.js 8.0 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. /* bender-tags: treeview */
  6. 'use strict';
  7. const modules = bender.amd.require(
  8. 'core/treeview/renderer',
  9. 'core/treeview/element',
  10. 'core/treeview/text',
  11. 'core/treeview/converter',
  12. 'core/ckeditorerror'
  13. );
  14. describe( 'Renderer', () => {
  15. let Renderer, ViewElement, ViewText, CKEditorError, converter;
  16. let renderer;
  17. before( () => {
  18. Renderer = modules[ 'core/treeview/renderer' ];
  19. ViewElement = modules[ 'core/treeview/element' ];
  20. ViewText = modules[ 'core/treeview/text' ];
  21. CKEditorError = modules[ 'core/ckeditorerror' ];
  22. converter = modules[ 'core/treeview/converter' ];
  23. renderer = new Renderer();
  24. } );
  25. describe( 'markToSync', () => {
  26. let viewNode;
  27. beforeEach( () => {
  28. viewNode = new ViewElement( 'p' );
  29. const domNode = document.createElement( 'p' );
  30. converter.bindElements( domNode, viewNode );
  31. viewNode.appendChildren( new ViewText( 'foo' ) );
  32. renderer.markedTexts.clear();
  33. renderer.markedAttrs.clear();
  34. renderer.markedChildren.clear();
  35. } );
  36. it( 'should mark attributes which need update', () => {
  37. viewNode.setAttr( 'class', 'foo' );
  38. renderer.markToSync( viewNode, 'ATTRIBUTES_NEED_UPDATE' );
  39. expect( renderer.markedAttrs.has( viewNode ) ).to.be.true;
  40. } );
  41. it( 'should mark children which need update', () => {
  42. viewNode.appendChildren( new ViewText( 'foo' ) );
  43. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  44. expect( renderer.markedChildren.has( viewNode ) ).to.be.true;
  45. } );
  46. it( 'should not mark children if element has no corresponding node', () => {
  47. // Overwrite viewNode with node without coresponding DOM node.
  48. viewNode = new ViewElement( 'p' );
  49. viewNode.appendChildren( new ViewText( 'foo' ) );
  50. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  51. expect( renderer.markedTexts.has( viewNode ) ).to.be.false;
  52. } );
  53. it( 'should mark text which need update', () => {
  54. const viewText = new ViewText( 'foo' );
  55. viewNode.appendChildren( viewText );
  56. viewText.setText( 'bar' );
  57. renderer.markToSync( viewText, 'TEXT_NEEDS_UPDATE' );
  58. expect( renderer.markedTexts.has( viewText ) ).to.be.true;
  59. } );
  60. it( 'should not mark text if parent has no corresponding node', () => {
  61. const viewText = new ViewText( 'foo' );
  62. // Overwrite viewNode with node without coresponding DOM node.
  63. viewNode = new ViewElement( 'p' );
  64. viewNode.appendChildren( viewText );
  65. viewText.setText( 'bar' );
  66. renderer.markToSync( viewText, 'TEXT_NEEDS_UPDATE' );
  67. expect( renderer.markedTexts.has( viewText ) ).to.be.false;
  68. } );
  69. it( 'should throw if the type is unknown', () => {
  70. expect( () => {
  71. renderer.markToSync( viewNode, 'UNKNOWN' );
  72. } ).to.throw( CKEditorError, /^renderer-unknown-type/ );
  73. } );
  74. } );
  75. describe( 'render', () => {
  76. let viewNode, domNode;
  77. beforeEach( () => {
  78. viewNode = new ViewElement( 'p' );
  79. domNode = document.createElement( 'p' );
  80. converter.bindElements( domNode, viewNode );
  81. renderer.markedTexts.clear();
  82. renderer.markedAttrs.clear();
  83. renderer.markedChildren.clear();
  84. } );
  85. it( 'should update attributes', () => {
  86. viewNode.setAttr( 'class', 'foo' );
  87. renderer.markToSync( viewNode, 'ATTRIBUTES_NEED_UPDATE' );
  88. renderer.render();
  89. expect( domNode.getAttribute( 'class' ) ).to.equal( 'foo' );
  90. expect( renderer.markedAttrs.size ).to.equal( 0 );
  91. } );
  92. it( 'should remove attributes', () => {
  93. viewNode.setAttr( 'class', 'foo' );
  94. domNode.setAttribute( 'id', 'bar' );
  95. domNode.setAttribute( 'class', 'bar' );
  96. renderer.markToSync( viewNode, 'ATTRIBUTES_NEED_UPDATE' );
  97. renderer.render();
  98. expect( domNode.getAttribute( 'class' ) ).to.equal( 'foo' );
  99. expect( domNode.getAttribute( 'id' ) ).to.be.not.ok;
  100. expect( renderer.markedAttrs.size ).to.equal( 0 );
  101. } );
  102. it( 'should add children', () => {
  103. viewNode.appendChildren( new ViewText( 'foo' ) );
  104. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  105. renderer.render();
  106. expect( domNode.childNodes.length ).to.equal( 1 );
  107. expect( domNode.childNodes[ 0 ].data ).to.equal( 'foo' );
  108. expect( renderer.markedChildren.size ).to.equal( 0 );
  109. } );
  110. it( 'should remove children', () => {
  111. viewNode.appendChildren( new ViewText( 'foo' ) );
  112. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  113. renderer.render();
  114. expect( domNode.childNodes.length ).to.equal( 1 );
  115. expect( domNode.childNodes[ 0 ].data ).to.equal( 'foo' );
  116. viewNode.removeChildren( 0, 1 );
  117. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  118. renderer.render();
  119. expect( domNode.childNodes.length ).to.equal( 0 );
  120. expect( renderer.markedChildren.size ).to.equal( 0 );
  121. } );
  122. it( 'should update text', () => {
  123. const viewText = new ViewText( 'foo' );
  124. viewNode.appendChildren( viewText );
  125. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  126. renderer.render();
  127. expect( domNode.childNodes.length ).to.equal( 1 );
  128. expect( domNode.childNodes[ 0 ].data ).to.equal( 'foo' );
  129. viewText.setText( 'bar' );
  130. renderer.markToSync( viewText, 'TEXT_NEEDS_UPDATE' );
  131. renderer.render();
  132. expect( domNode.childNodes.length ).to.equal( 1 );
  133. expect( domNode.childNodes[ 0 ].data ).to.equal( 'bar' );
  134. expect( renderer.markedTexts.size ).to.equal( 0 );
  135. } );
  136. it( 'should not update text parent child list changed', () => {
  137. const viewImg = new ViewElement( 'img' );
  138. const viewText = new ViewText( 'foo' );
  139. viewNode.appendChildren( [ viewImg, viewText ] );
  140. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  141. renderer.markToSync( viewText, 'TEXT_NEEDS_UPDATE' );
  142. renderer.render();
  143. expect( domNode.childNodes.length ).to.equal( 2 );
  144. expect( domNode.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'img' );
  145. expect( domNode.childNodes[ 1 ].data ).to.equal( 'foo' );
  146. } );
  147. it( 'should not change text if it is the same during text rendering', () => {
  148. const viewText = new ViewText( 'foo' );
  149. viewNode.appendChildren( viewText );
  150. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  151. renderer.render();
  152. // This should not be changed during the render.
  153. const domText = domNode.childNodes[ 0 ];
  154. renderer.markToSync( viewText, 'TEXT_NEEDS_UPDATE' );
  155. renderer.render();
  156. expect( domNode.childNodes.length ).to.equal( 1 );
  157. expect( domNode.childNodes[ 0 ] ).to.equal( domText );
  158. } );
  159. it( 'should not change text if it is the same during children rendering', () => {
  160. const viewText = new ViewText( 'foo' );
  161. viewNode.appendChildren( viewText );
  162. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  163. renderer.render();
  164. // This should not be changed during the render.
  165. const domText = domNode.childNodes[ 0 ];
  166. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  167. renderer.render();
  168. expect( domNode.childNodes.length ).to.equal( 1 );
  169. expect( domNode.childNodes[ 0 ] ).to.equal( domText );
  170. } );
  171. it( 'should not change element if it is the same', () => {
  172. const viewImg = new ViewElement( 'img' );
  173. viewNode.appendChildren( viewImg );
  174. // This should not be changed during the render.
  175. const domImg = document.createElement( 'img' );
  176. domNode.appendChild( domImg );
  177. converter.bindElements( domImg, viewImg );
  178. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  179. renderer.render();
  180. expect( domNode.childNodes.length ).to.equal( 1 );
  181. expect( domNode.childNodes[ 0 ] ).to.equal( domImg );
  182. } );
  183. it( 'should change element if it is different', () => {
  184. const viewImg = new ViewElement( 'img' );
  185. viewNode.appendChildren( viewImg );
  186. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  187. renderer.render();
  188. const viewP = new ViewElement( 'p' );
  189. viewNode.removeChildren( 0, 1 );
  190. viewNode.appendChildren( viewP );
  191. renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' );
  192. renderer.render();
  193. expect( domNode.childNodes.length ).to.equal( 1 );
  194. expect( domNode.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'p' );
  195. } );
  196. } );
  197. } );