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model-to-view-converters.js 12 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: conversion */
  6. 'use strict';
  7. import ModelDocument from '/ckeditor5/engine/model/document.js';
  8. import ModelElement from '/ckeditor5/engine/model/element.js';
  9. import ModelText from '/ckeditor5/engine/model/text.js';
  10. import ModelRange from '/ckeditor5/engine/model/range.js';
  11. import ModelPosition from '/ckeditor5/engine/model/position.js';
  12. import ViewElement from '/ckeditor5/engine/view/element.js';
  13. import ViewContainerElement from '/ckeditor5/engine/view/containerelement.js';
  14. import ViewAttributeElement from '/ckeditor5/engine/view/attributeelement.js';
  15. import ViewText from '/ckeditor5/engine/view/text.js';
  16. import Mapper from '/ckeditor5/engine/conversion/mapper.js';
  17. import ModelConversionDispatcher from '/ckeditor5/engine/conversion/modelconversiondispatcher.js';
  18. import {
  19. insertElement,
  20. insertText,
  21. setAttribute,
  22. removeAttribute,
  23. wrap,
  24. unwrap,
  25. move,
  26. remove
  27. } from '/ckeditor5/engine/conversion/model-to-view-converters.js';
  28. let dispatcher, modelDoc, modelRoot, mapper, viewRoot;
  29. beforeEach( () => {
  30. modelDoc = new ModelDocument();
  31. modelRoot = modelDoc.createRoot();
  32. viewRoot = new ViewContainerElement( 'div' );
  33. mapper = new Mapper();
  34. mapper.bindElements( modelRoot, viewRoot );
  35. dispatcher = new ModelConversionDispatcher( { mapper } );
  36. } );
  37. function viewAttributesToString( item ) {
  38. let result = '';
  39. for ( let key of item.getAttributeKeys() ) {
  40. let value = item.getAttribute( key );
  41. if ( value ) {
  42. result += ' ' + key + '="' + value + '"';
  43. }
  44. }
  45. return result;
  46. }
  47. function viewToString( item ) {
  48. let result = '';
  49. if ( item instanceof ViewText ) {
  50. result = item.data;
  51. } else {
  52. // ViewElement or ViewDocumentFragment.
  53. for ( let child of item.getChildren() ) {
  54. result += viewToString( child );
  55. }
  56. if ( item instanceof ViewElement ) {
  57. result = '<' + item.name + viewAttributesToString( item ) + '>' + result + '</' + item.name + '>';
  58. }
  59. }
  60. return result;
  61. }
  62. describe( 'insertText', () => {
  63. it( 'should convert text insertion in model to view text', () => {
  64. modelRoot.appendChildren( 'foobar' );
  65. dispatcher.on( 'insert:$text', insertText() );
  66. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  67. expect( viewToString( viewRoot ) ).to.equal( '<div>foobar</div>' );
  68. } );
  69. } );
  70. describe( 'insertElement', () => {
  71. it( 'should convert element insertion in model to and map positions for future converting', () => {
  72. const modelElement = new ModelElement( 'paragraph', null, 'foobar' );
  73. const viewElement = new ViewContainerElement( 'p' );
  74. modelRoot.appendChildren( modelElement );
  75. dispatcher.on( 'insert:paragraph', insertElement( viewElement ) );
  76. dispatcher.on( 'insert:$text', insertText() );
  77. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  78. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  79. } );
  80. it( 'should take view element function generator as a parameter', () => {
  81. const elementGenerator = ( data, consumable ) => {
  82. if ( consumable.consume( data.item, 'addAttribute:nice' ) ) {
  83. return new ViewContainerElement( 'div' );
  84. } else {
  85. return new ViewContainerElement( 'p' );
  86. }
  87. };
  88. const niceP = new ModelElement( 'myParagraph', { nice: true }, 'foo' );
  89. const badP = new ModelElement( 'myParagraph', null, 'bar' );
  90. modelRoot.appendChildren( [ niceP, badP ] );
  91. dispatcher.on( 'insert:myParagraph', insertElement( elementGenerator ) );
  92. dispatcher.on( 'insert:$text', insertText() );
  93. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  94. expect( viewToString( viewRoot ) ).to.equal( '<div><div>foo</div><p>bar</p></div>' );
  95. } );
  96. } );
  97. describe( 'setAttribute/removeAttribute', () => {
  98. it( 'should convert attribute insert/change/remove on a model node', () => {
  99. const modelElement = new ModelElement( 'paragraph', { class: 'foo' }, 'foobar' );
  100. const viewElement = new ViewContainerElement( 'p' );
  101. modelRoot.appendChildren( modelElement );
  102. dispatcher.on( 'insert:paragraph', insertElement( viewElement ) );
  103. dispatcher.on( 'insert:$text', insertText() );
  104. dispatcher.on( 'addAttribute:class', setAttribute() );
  105. dispatcher.on( 'changeAttribute:class', setAttribute() );
  106. dispatcher.on( 'removeAttribute:class', removeAttribute() );
  107. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  108. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="foo">foobar</p></div>' );
  109. modelElement.setAttribute( 'class', 'bar' );
  110. dispatcher.convertAttribute( 'changeAttribute', ModelRange.createOnElement( modelElement ), 'class', 'foo', 'bar' );
  111. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="bar">foobar</p></div>' );
  112. modelElement.removeAttribute( 'class' );
  113. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createOnElement( modelElement ), 'class', 'bar', null );
  114. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  115. } );
  116. it( 'should convert insert/change/remove with attribute generating function as a parameter', () => {
  117. const modelParagraph = new ModelElement( 'paragraph', { theme: 'nice' }, 'foobar' );
  118. const modelDiv = new ModelElement( 'div', { theme: 'nice' } );
  119. const themeConverter = ( value, key, data ) => {
  120. if ( data.item instanceof ModelElement && data.item.getChildCount() > 0 ) {
  121. value += ' ' + 'fix-content';
  122. }
  123. return { key: 'class', value };
  124. };
  125. modelRoot.appendChildren( [ modelParagraph, modelDiv ] );
  126. dispatcher.on( 'insert:paragraph', insertElement( new ViewContainerElement( 'p' ) ) );
  127. dispatcher.on( 'insert:div', insertElement( new ViewContainerElement( 'div' ) ) );
  128. dispatcher.on( 'insert:$text', insertText() );
  129. dispatcher.on( 'addAttribute:theme', setAttribute( themeConverter ) );
  130. dispatcher.on( 'changeAttribute:theme', setAttribute( themeConverter ) );
  131. dispatcher.on( 'removeAttribute:theme', removeAttribute( themeConverter ) );
  132. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  133. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="nice fix-content">foobar</p><div class="nice"></div></div>' );
  134. modelParagraph.setAttribute( 'theme', 'awesome' );
  135. dispatcher.convertAttribute( 'changeAttribute', ModelRange.createOnElement( modelParagraph ), 'theme', 'nice', 'awesome' );
  136. expect( viewToString( viewRoot ) ).to.equal( '<div><p class="awesome fix-content">foobar</p><div class="nice"></div></div>' );
  137. modelParagraph.removeAttribute( 'theme' );
  138. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createOnElement( modelParagraph ), 'theme', 'awesome', null );
  139. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p><div class="nice"></div></div>' );
  140. } );
  141. } );
  142. describe( 'wrap/unwrap', () => {
  143. it( 'should convert insert/change/remove of attribute in model into wrapping element in a view', () => {
  144. const modelElement = new ModelElement( 'paragraph', null, new ModelText( 'foobar', { bold: true } ) );
  145. const viewP = new ViewContainerElement( 'p' );
  146. const viewB = new ViewAttributeElement( 'b' );
  147. modelRoot.appendChildren( modelElement );
  148. dispatcher.on( 'insert:paragraph', insertElement( viewP ) );
  149. dispatcher.on( 'insert:$text', insertText() );
  150. dispatcher.on( 'addAttribute:bold', wrap( viewB ) );
  151. dispatcher.on( 'removeAttribute:bold', unwrap( viewB ) );
  152. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  153. expect( viewToString( viewRoot ) ).to.equal( '<div><p><b>foobar</b></p></div>' );
  154. for ( let value of ModelRange.createFromElement( modelElement ) ) {
  155. value.item.removeAttribute( 'bold' );
  156. }
  157. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createFromElement( modelElement ), 'bold', true, null );
  158. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  159. } );
  160. it( 'should convert insert/remove of attribute in model with wrapping element generating function as a parameter', () => {
  161. const modelElement = new ModelElement( 'paragraph', null, new ModelText( 'foobar', { style: 'bold' } ) );
  162. const viewP = new ViewContainerElement( 'p' );
  163. const elementGenerator = ( value ) => {
  164. if ( value == 'bold' ) {
  165. return new ViewAttributeElement( 'b' );
  166. }
  167. };
  168. modelRoot.appendChildren( modelElement );
  169. dispatcher.on( 'insert:paragraph', insertElement( viewP ) );
  170. dispatcher.on( 'insert:$text', insertText() );
  171. dispatcher.on( 'addAttribute:style', wrap( elementGenerator ) );
  172. dispatcher.on( 'removeAttribute:style', unwrap( elementGenerator ) );
  173. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  174. expect( viewToString( viewRoot ) ).to.equal( '<div><p><b>foobar</b></p></div>' );
  175. for ( let value of ModelRange.createFromElement( modelElement ) ) {
  176. value.item.removeAttribute( 'style' );
  177. }
  178. dispatcher.convertAttribute( 'removeAttribute', ModelRange.createFromElement( modelElement ), 'style', 'bold', null );
  179. expect( viewToString( viewRoot ) ).to.equal( '<div><p>foobar</p></div>' );
  180. } );
  181. it( 'should update range on re-wrapping attribute (#475)', () => {
  182. const modelElement = new ModelElement( 'paragraph', null,
  183. [ 'x', new ModelText( 'foo', { link: 'http://foo.com' } ), 'x' ] );
  184. const viewP = new ViewContainerElement( 'p' );
  185. const elementGenerator = ( href ) => new ViewAttributeElement( 'a', { href } );
  186. modelRoot.appendChildren( modelElement );
  187. dispatcher.on( 'insert:paragraph', insertElement( viewP ) );
  188. dispatcher.on( 'insert:$text', insertText() );
  189. dispatcher.on( 'addAttribute:link', wrap( elementGenerator ) );
  190. dispatcher.on( 'changeAttribute:link', wrap( elementGenerator ) );
  191. dispatcher.convertInsert(
  192. ModelRange.createFromElement( modelRoot )
  193. );
  194. expect( viewToString( viewRoot ) ).to.equal( '<div><p>x<a href="http://foo.com">foo</a>x</p></div>' );
  195. for ( let value of ModelRange.createFromElement( modelElement ) ) {
  196. value.item.setAttribute( 'link', 'http://foobar.com' );
  197. }
  198. dispatcher.convertAttribute(
  199. 'changeAttribute',
  200. ModelRange.createFromElement( modelElement ),
  201. 'link',
  202. 'http://foo.com',
  203. 'http://foobar.com'
  204. );
  205. expect( viewToString( viewRoot ) ).to.equal( '<div><p><a href="http://foobar.com">xfoox</a></p></div>' );
  206. } );
  207. } );
  208. describe( 'move', () => {
  209. it( 'should move items in view accordingly to changes in model', () => {
  210. const modelDivA = new ModelElement( 'div', null, [ 'foo', new ModelElement( 'image' ) ] );
  211. const modelDivB = new ModelElement( 'div', null, [ 'xxyy' ] );
  212. modelRoot.appendChildren( [ modelDivA, modelDivB ] );
  213. dispatcher.on( 'insert:div', insertElement( new ViewContainerElement( 'div' ) ) );
  214. dispatcher.on( 'insert:image', insertElement( new ViewContainerElement( 'img' ) ) );
  215. dispatcher.on( 'insert:$text', insertText() );
  216. dispatcher.on( 'move', move() );
  217. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  218. const removedNodes = modelDivA.removeChildren( 2, 2 );
  219. modelDivB.insertChildren( 2, removedNodes );
  220. dispatcher.convertMove(
  221. ModelPosition.createFromParentAndOffset( modelDivA, 2 ),
  222. ModelRange.createFromParentsAndOffsets( modelDivB, 2, modelDivB, 4 )
  223. );
  224. expect( viewToString( viewRoot ) ).to.equal( '<div><div>fo</div><div>xxo<img></img>yy</div></div>' );
  225. } );
  226. } );
  227. describe( 'remove', () => {
  228. it( 'should remove items from view accordingly to changes in model', () => {
  229. const modelDiv = new ModelElement( 'div', null, [ 'foo', new ModelElement( 'image' ) ] );
  230. modelRoot.appendChildren( modelDiv );
  231. dispatcher.on( 'insert:div', insertElement( new ViewContainerElement( 'div' ) ) );
  232. dispatcher.on( 'insert:image', insertElement( new ViewContainerElement( 'img' ) ) );
  233. dispatcher.on( 'insert:$text', insertText() );
  234. dispatcher.on( 'remove', remove() );
  235. dispatcher.convertInsert( ModelRange.createFromElement( modelRoot ) );
  236. const removedNodes = modelDiv.removeChildren( 2, 2 );
  237. modelDoc.graveyard.insertChildren( 2, removedNodes );
  238. dispatcher.convertRemove(
  239. ModelPosition.createFromParentAndOffset( modelDiv, 2 ),
  240. ModelRange.createFromParentsAndOffsets( modelDoc.graveyard, 0, modelDoc.graveyard, 2 )
  241. );
  242. expect( viewToString( viewRoot ) ).to.equal( '<div><div>fo</div></div>' );
  243. } );
  244. } );