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widgetresize.js 11 KB

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  1. /**
  2. * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
  4. */
  5. /* globals window, document */
  6. import WidgetResize from '../src/widgetresize';
  7. // ClassicTestEditor can't be used, as it doesn't handle the focus, which is needed to test resizer visual cues.
  8. import ClassicEditor from '@ckeditor/ckeditor5-editor-classic/src/classiceditor';
  9. import ArticlePluginSet from '@ckeditor/ckeditor5-core/tests/_utils/articlepluginset';
  10. import {
  11. toWidget
  12. } from '../src/utils';
  13. import {
  14. setData as setModelData
  15. } from '@ckeditor/ckeditor5-engine/src/dev-utils/model';
  16. import Rect from '@ckeditor/ckeditor5-utils/src/dom/rect';
  17. describe( 'WidgetResize', () => {
  18. let editor, editorElement, view, widget, widgetModel, mouseListenerSpies;
  19. const commitStub = sinon.stub();
  20. const mouseMock = {
  21. down( editor, domTarget ) {
  22. this._getPlugin( editor )._mouseDownListener( {}, {
  23. target: domTarget
  24. } );
  25. },
  26. move( editor, domTarget, eventData ) {
  27. const combinedEventData = Object.assign( {}, eventData, {
  28. target: domTarget
  29. } );
  30. this._getPlugin( editor )._mouseMoveListener( {}, combinedEventData );
  31. },
  32. up() {
  33. this._getPlugin( editor )._mouseUpListener();
  34. },
  35. _getPlugin( editor ) {
  36. return editor.plugins.get( WidgetResize );
  37. }
  38. };
  39. before( () => {
  40. mouseListenerSpies = {
  41. down: sinon.spy( WidgetResize.prototype, '_mouseDownListener' ),
  42. move: sinon.spy( WidgetResize.prototype, '_mouseMoveListener' ),
  43. up: sinon.spy( WidgetResize.prototype, '_mouseUpListener' )
  44. };
  45. } );
  46. after( () => {
  47. for ( const stub of Object.values( mouseListenerSpies ) ) {
  48. stub.restore();
  49. }
  50. } );
  51. beforeEach( async () => {
  52. editorElement = createEditorElement();
  53. editor = await createEditor( editorElement );
  54. view = editor.editing.view;
  55. setModelData( editor.model, '[<widget></widget>]' );
  56. focusEditor( editor );
  57. widget = view.document.getRoot().getChild( 0 );
  58. widgetModel = editor.model.document.getRoot().getChild( 0 );
  59. for ( const stub of Object.values( mouseListenerSpies ) ) {
  60. stub.resetHistory();
  61. }
  62. commitStub.resetHistory();
  63. // It's crucial to have a precisely defined editor size for this test suite.
  64. editor.editing.view.change( writer => {
  65. const viewEditableRoot = editor.editing.view.document.getRoot();
  66. writer.setAttribute( 'style', 'width: 400px; padding: 0px; overflow: hidden', viewEditableRoot );
  67. } );
  68. } );
  69. afterEach( () => {
  70. editorElement.remove();
  71. if ( editor ) {
  72. return editor.destroy();
  73. }
  74. } );
  75. describe( 'plugin', () => {
  76. it( 'is loaded', () => {
  77. expect( editor.plugins.get( WidgetResize ) ).to.be.instanceOf( WidgetResize );
  78. } );
  79. } );
  80. describe( 'mouse listeners', () => {
  81. beforeEach( () => {
  82. createResizer();
  83. } );
  84. it( 'doesnt break when called with unexpected element', async () => {
  85. const unrelatedElement = document.createElement( 'div' );
  86. editor.plugins.get( WidgetResize )._mouseDownListener( {}, {
  87. target: unrelatedElement
  88. } );
  89. } );
  90. it( 'passes new width to the options.onCommit()', async () => {
  91. const usedResizer = 'top-right';
  92. const domParts = getWidgetDomParts( widget, usedResizer );
  93. const initialPointerPosition = getElementCenterPoint( domParts.widget, usedResizer );
  94. const finalPointerPosition = Object.assign( {}, initialPointerPosition );
  95. finalPointerPosition.pageX += 20;
  96. mouseMock.down( editor, domParts.resizeHandle );
  97. await wait( 40 );
  98. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  99. mouseMock.up();
  100. expect( commitStub.callCount ).to.be.equal( 1 );
  101. sinon.assert.calledWithExactly( commitStub, '120px' );
  102. } );
  103. } );
  104. it( 'are detached when plugin is destroyed', async () => {
  105. await editor.destroy();
  106. const plugin = editor.plugins.get( WidgetResize );
  107. editor = null;
  108. // Trigger mouse event.
  109. fireMouseEvent( document.body, 'mousedown', {} );
  110. // Ensure nothing got called.
  111. expect( plugin._mouseDownListener.callCount ).to.be.equal( 0 );
  112. } );
  113. it( 'nothing bad happens if activeResizer got unset', async () => {
  114. createResizer( {
  115. isCentered: () => true
  116. } );
  117. const usedResizer = 'top-right';
  118. const domParts = getWidgetDomParts( widget, usedResizer );
  119. const initialPointerPosition = getElementCenterPoint( domParts.widget, usedResizer );
  120. editor.plugins.get( WidgetResize )._getResizerByHandle = sinon.stub().returns( null );
  121. mouseMock.down( editor, domParts.resizeHandle );
  122. await wait( 40 );
  123. mouseMock.move( editor, domParts.resizeHandle, initialPointerPosition );
  124. mouseMock.up();
  125. } );
  126. describe( '_proposeNewSize()', () => {
  127. beforeEach( async () => {
  128. createResizer( {
  129. isCentered: () => true
  130. } );
  131. } );
  132. it( 'assumes a centered image if no isCentered option is provided', async () => {
  133. const usedResizer = 'top-right';
  134. const domParts = getWidgetDomParts( widget, usedResizer, editor.editing.view );
  135. const initialPointerPosition = getElementCenterPoint( domParts.widget, usedResizer );
  136. const finalPointerPosition = Object.assign( {}, initialPointerPosition );
  137. finalPointerPosition.pageX += 20;
  138. mouseMock.down( editor, domParts.resizeHandle );
  139. await wait( 40 );
  140. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  141. mouseMock.up();
  142. await wait( 40 );
  143. // THe image should be enlarged by a twice of the mouse movement distance.
  144. sinon.assert.calledWithExactly( commitStub, '140px' );
  145. } );
  146. } );
  147. describe( 'Integration (pixels)', () => {
  148. beforeEach( async () => {
  149. createResizer();
  150. } );
  151. it( 'properly sets the state for subsequent resizes', async () => {
  152. const usedResizer = 'top-right';
  153. const domParts = getWidgetDomParts( widget, usedResizer, editor.editing.view );
  154. const initialPointerPosition = getElementCenterPoint( domParts.widget, usedResizer );
  155. const finalPointerPosition = Object.assign( {}, initialPointerPosition );
  156. finalPointerPosition.pageX += 50;
  157. mouseMock.down( editor, domParts.resizeHandle );
  158. await wait( 40 );
  159. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  160. mouseMock.up();
  161. await wait( 40 );
  162. mouseMock.down( editor, domParts.resizeHandle );
  163. await wait( 40 );
  164. finalPointerPosition.pageX += 50;
  165. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  166. mouseMock.up();
  167. expect( commitStub.callCount ).to.be.equal( 2 );
  168. sinon.assert.calledWithExactly( commitStub.firstCall, '150px' );
  169. sinon.assert.calledWithExactly( commitStub.secondCall, '200px' );
  170. } );
  171. } );
  172. describe( 'Integration (percents)', () => {
  173. beforeEach( async () => {
  174. createResizer( {
  175. unit: undefined
  176. } );
  177. } );
  178. it( 'properly sets the state for subsequent resizes', async () => {
  179. const usedResizer = 'top-right';
  180. const domParts = getWidgetDomParts( widget, usedResizer, editor.editing.view );
  181. const initialPointerPosition = getElementCenterPoint( domParts.widget, usedResizer );
  182. const finalPointerPosition = Object.assign( {}, initialPointerPosition );
  183. finalPointerPosition.pageX += 100;
  184. mouseMock.down( editor, domParts.resizeHandle );
  185. await wait( 40 );
  186. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  187. mouseMock.up();
  188. await wait( 40 );
  189. mouseMock.down( editor, domParts.resizeHandle );
  190. await wait( 40 );
  191. finalPointerPosition.pageX += 100;
  192. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  193. mouseMock.up();
  194. expect( commitStub.callCount ).to.be.equal( 2 );
  195. sinon.assert.calledWithExactly( commitStub.firstCall, '50%' );
  196. sinon.assert.calledWithExactly( commitStub.secondCall, '75%' );
  197. } );
  198. } );
  199. function createEditor( element ) {
  200. return ClassicEditor
  201. .create( element, {
  202. plugins: [
  203. ArticlePluginSet, WidgetResize, simpleWidgetPlugin
  204. ]
  205. } );
  206. function simpleWidgetPlugin( editor ) {
  207. editor.model.schema.register( 'widget', {
  208. inheritAllFrom: '$block',
  209. isObject: true
  210. } );
  211. editor.conversion.for( 'downcast' )
  212. .elementToElement( {
  213. model: 'widget',
  214. view: ( modelItem, viewWriter ) => {
  215. const div = viewWriter.createContainerElement( 'div' );
  216. viewWriter.setStyle( 'height', '100px', div );
  217. viewWriter.setStyle( 'width', '25%', div ); // It evaluates to 100px.
  218. return toWidget( div, viewWriter, {
  219. label: 'element label'
  220. } );
  221. }
  222. } );
  223. }
  224. }
  225. function createEditorElement() {
  226. const element = document.createElement( 'div' );
  227. document.body.appendChild( element );
  228. return element;
  229. }
  230. function createResizer( resizerOptions ) {
  231. const defaultOptions = {
  232. unit: 'px',
  233. modelElement: widgetModel,
  234. viewElement: widget,
  235. editor,
  236. isCentered: () => false,
  237. getHandleHost( domWidgetElement ) {
  238. return domWidgetElement;
  239. },
  240. getResizeHost( domWidgetElement ) {
  241. return domWidgetElement;
  242. },
  243. onCommit: commitStub
  244. };
  245. return editor.plugins.get( WidgetResize ).attachTo( Object.assign( defaultOptions, resizerOptions ) );
  246. }
  247. function fireMouseEvent( target, eventType, eventData ) {
  248. // Id of the left mouse button.
  249. const MOUSE_BUTTON_MAIN = 0;
  250. // Using initMouseEvent instead of MouseEvent constructor, as MouseEvent constructor doesn't support passing pageX
  251. // and pageY. See https://stackoverflow.com/questions/45843458/setting-click-events-pagex-and-pagey-always-reverts-to-0
  252. // However there's still a problem, that events created with `initMouseEvent` have **floored** pageX, pageY numbers.
  253. const event = document.createEvent( 'MouseEvent' );
  254. event.initMouseEvent( eventType, true, true, window, null, 0, 0, eventData.pageX, eventData.pageY, false, false, false, false,
  255. MOUSE_BUTTON_MAIN, null );
  256. target.dispatchEvent( event );
  257. }
  258. function getWidgetDomParts( widget, resizerPosition, localView ) {
  259. const resizeWrapper = ( localView || view ).domConverter.mapViewToDom( widget.getChild( 0 ) );
  260. return {
  261. resizeWrapper,
  262. resizeHandle: resizeWrapper.querySelector( `.ck-widget__resizer__handle-${ resizerPosition }` ),
  263. widget: view.domConverter.mapViewToDom( widget )
  264. };
  265. }
  266. function getElementCenterPoint( domWrapper, cornerPosition ) {
  267. const wrapperRect = new Rect( domWrapper );
  268. const initialPointerPosition = {
  269. pageX: wrapperRect.left,
  270. pageY: wrapperRect.top
  271. };
  272. const cornerPositionParts = cornerPosition.split( '-' );
  273. if ( cornerPositionParts.includes( 'right' ) ) {
  274. initialPointerPosition.pageX = wrapperRect.right;
  275. }
  276. if ( cornerPositionParts.includes( 'bottom' ) ) {
  277. initialPointerPosition.pageY = wrapperRect.bottom;
  278. }
  279. return initialPointerPosition;
  280. }
  281. function focusEditor( editor ) {
  282. editor.editing.view.focus();
  283. editor.ui.focusTracker.isFocused = true;
  284. }
  285. function wait( delay ) {
  286. return new Promise( resolve => window.setTimeout( () => resolve(), delay ) );
  287. }
  288. } );