widgetresize.js 11 KB

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  1. /**
  2. * @license Copyright (c) 2003-2020, 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, widget, 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. setModelData( editor.model, '[<widget></widget>]' );
  55. focusEditor( editor );
  56. widget = editor.editing.view.document.getRoot().getChild( 0 );
  57. for ( const stub of Object.values( mouseListenerSpies ) ) {
  58. stub.resetHistory();
  59. }
  60. commitStub.resetHistory();
  61. // It's crucial to have a precisely defined editor size for this test suite.
  62. editor.editing.view.change( writer => {
  63. const viewEditableRoot = editor.editing.view.document.getRoot();
  64. writer.setAttribute( 'style', 'width: 400px; padding: 0px; overflow: hidden', viewEditableRoot );
  65. } );
  66. } );
  67. afterEach( () => {
  68. editorElement.remove();
  69. if ( editor ) {
  70. return editor.destroy();
  71. }
  72. } );
  73. describe( 'plugin', () => {
  74. it( 'is loaded', () => {
  75. expect( editor.plugins.get( WidgetResize ) ).to.be.instanceOf( WidgetResize );
  76. } );
  77. } );
  78. describe( 'mouse listeners', () => {
  79. beforeEach( () => {
  80. createResizer();
  81. } );
  82. it( 'doesnt break when called with unexpected element', async () => {
  83. const unrelatedElement = document.createElement( 'div' );
  84. editor.plugins.get( WidgetResize )._mouseDownListener( {}, {
  85. target: unrelatedElement
  86. } );
  87. } );
  88. it( 'passes new width to the options.onCommit()', async () => {
  89. const usedResizer = 'top-right';
  90. const domParts = getWidgetDomParts( widget, usedResizer );
  91. const initialPointerPosition = getElementCenterPoint( domParts.widget, usedResizer );
  92. const finalPointerPosition = Object.assign( {}, initialPointerPosition );
  93. finalPointerPosition.pageX += 20;
  94. mouseMock.down( editor, domParts.resizeHandle );
  95. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  96. mouseMock.up();
  97. expect( commitStub.callCount ).to.be.equal( 1 );
  98. sinon.assert.calledWithExactly( commitStub, '120px' );
  99. } );
  100. } );
  101. it( 'are detached when plugin is destroyed', async () => {
  102. await editor.destroy();
  103. const plugin = editor.plugins.get( WidgetResize );
  104. editor = null;
  105. // Trigger mouse event.
  106. fireMouseEvent( document.body, 'mousedown', {} );
  107. // Ensure nothing got called.
  108. expect( plugin._mouseDownListener.callCount ).to.be.equal( 0 );
  109. } );
  110. it( 'nothing bad happens if activeResizer got unset', async () => {
  111. createResizer( {
  112. isCentered: () => true
  113. } );
  114. const usedResizer = 'top-right';
  115. const domParts = getWidgetDomParts( widget, usedResizer );
  116. const initialPointerPosition = getElementCenterPoint( domParts.widget, usedResizer );
  117. editor.plugins.get( WidgetResize )._getResizerByHandle = sinon.stub().returns( null );
  118. mouseMock.down( editor, domParts.resizeHandle );
  119. mouseMock.move( editor, domParts.resizeHandle, initialPointerPosition );
  120. mouseMock.up();
  121. } );
  122. describe( '_proposeNewSize()', () => {
  123. beforeEach( async () => {
  124. createResizer( {
  125. isCentered: () => true
  126. } );
  127. } );
  128. it( 'assumes a centered image if no isCentered option is provided', async () => {
  129. const usedResizer = 'top-right';
  130. const domParts = getWidgetDomParts( widget, usedResizer );
  131. const initialPointerPosition = getElementCenterPoint( domParts.widget, usedResizer );
  132. const finalPointerPosition = Object.assign( {}, initialPointerPosition );
  133. finalPointerPosition.pageX += 20;
  134. mouseMock.down( editor, domParts.resizeHandle );
  135. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  136. mouseMock.up();
  137. // THe image should be enlarged by a twice of the mouse movement distance.
  138. sinon.assert.calledWithExactly( commitStub, '140px' );
  139. } );
  140. } );
  141. describe( 'Integration (pixels)', () => {
  142. let resizer;
  143. beforeEach( async () => {
  144. resizer = createResizer();
  145. } );
  146. it( 'properly sets the state for subsequent resizes', async () => {
  147. const usedResizer = 'top-right';
  148. const domParts = getWidgetDomParts( widget, usedResizer );
  149. const initialPointerPosition = getElementCenterPoint( domParts.widget, usedResizer );
  150. const finalPointerPosition = Object.assign( {}, initialPointerPosition );
  151. finalPointerPosition.pageX += 50;
  152. mouseMock.down( editor, domParts.resizeHandle );
  153. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  154. mouseMock.up();
  155. mouseMock.down( editor, domParts.resizeHandle );
  156. finalPointerPosition.pageX += 50;
  157. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  158. mouseMock.up();
  159. expect( commitStub.callCount ).to.be.equal( 2 );
  160. sinon.assert.calledWithExactly( commitStub.firstCall, '150px' );
  161. sinon.assert.calledWithExactly( commitStub.secondCall, '200px' );
  162. } );
  163. it( 'hides the resize wrapper when resizer gets disabled', () => {
  164. const resizerWrapper = editor.ui.getEditableElement().querySelector( '.ck-widget__resizer' );
  165. expect( resizerWrapper.style.display ).to.equal( '' );
  166. resizer.isEnabled = false;
  167. expect( resizerWrapper.style.display ).to.equal( 'none' );
  168. } );
  169. } );
  170. describe( 'Integration (percents)', () => {
  171. beforeEach( async () => {
  172. createResizer( {
  173. unit: undefined
  174. } );
  175. } );
  176. it( 'properly sets the state for subsequent resizes', async () => {
  177. const usedResizer = 'top-right';
  178. const domParts = getWidgetDomParts( widget, usedResizer );
  179. const initialPointerPosition = getElementCenterPoint( domParts.widget, usedResizer );
  180. const finalPointerPosition = Object.assign( {}, initialPointerPosition );
  181. finalPointerPosition.pageX += 100;
  182. mouseMock.down( editor, domParts.resizeHandle );
  183. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  184. mouseMock.up();
  185. mouseMock.down( editor, domParts.resizeHandle );
  186. finalPointerPosition.pageX += 100;
  187. mouseMock.move( editor, domParts.resizeHandle, finalPointerPosition );
  188. mouseMock.up();
  189. expect( commitStub.callCount ).to.be.equal( 2 );
  190. sinon.assert.calledWithExactly( commitStub.firstCall, '50%' );
  191. sinon.assert.calledWithExactly( commitStub.secondCall, '75%' );
  192. } );
  193. } );
  194. function createEditor( element ) {
  195. return ClassicEditor
  196. .create( element, {
  197. plugins: [
  198. ArticlePluginSet, WidgetResize, simpleWidgetPlugin
  199. ]
  200. } );
  201. function simpleWidgetPlugin( editor ) {
  202. editor.model.schema.register( 'widget', {
  203. inheritAllFrom: '$block',
  204. isObject: true
  205. } );
  206. editor.conversion.for( 'downcast' )
  207. .elementToElement( {
  208. model: 'widget',
  209. view: ( modelItem, viewWriter ) => {
  210. const div = viewWriter.createContainerElement( 'div' );
  211. viewWriter.setStyle( 'height', '100px', div );
  212. viewWriter.setStyle( 'width', '25%', div ); // It evaluates to 100px.
  213. return toWidget( div, viewWriter, {
  214. label: 'element label'
  215. } );
  216. }
  217. } );
  218. }
  219. }
  220. function createEditorElement() {
  221. const element = document.createElement( 'div' );
  222. document.body.appendChild( element );
  223. return element;
  224. }
  225. function createResizer( resizerOptions ) {
  226. const widgetModel = editor.model.document.getRoot().getChild( 0 );
  227. const defaultOptions = {
  228. unit: 'px',
  229. modelElement: widgetModel,
  230. viewElement: widget,
  231. editor,
  232. isCentered: () => false,
  233. getHandleHost( domWidgetElement ) {
  234. return domWidgetElement;
  235. },
  236. getResizeHost( domWidgetElement ) {
  237. return domWidgetElement;
  238. },
  239. onCommit: commitStub
  240. };
  241. return editor.plugins.get( WidgetResize ).attachTo( Object.assign( defaultOptions, resizerOptions ) );
  242. }
  243. function fireMouseEvent( target, eventType, eventData ) {
  244. // Id of the left mouse button.
  245. const MOUSE_BUTTON_MAIN = 0;
  246. // Using initMouseEvent instead of MouseEvent constructor, as MouseEvent constructor doesn't support passing pageX
  247. // and pageY. See https://stackoverflow.com/questions/45843458/setting-click-events-pagex-and-pagey-always-reverts-to-0
  248. // However there's still a problem, that events created with `initMouseEvent` have **floored** pageX, pageY numbers.
  249. const event = document.createEvent( 'MouseEvent' );
  250. event.initMouseEvent( eventType, true, true, window, null, 0, 0, eventData.pageX, eventData.pageY, false, false, false, false,
  251. MOUSE_BUTTON_MAIN, null );
  252. target.dispatchEvent( event );
  253. }
  254. function getWidgetDomParts( widget, resizerPosition ) {
  255. const view = editor.editing.view;
  256. const resizeWrapper = view.domConverter.mapViewToDom( widget.getChild( 0 ) );
  257. return {
  258. resizeWrapper,
  259. resizeHandle: resizeWrapper.querySelector( `.ck-widget__resizer__handle-${ resizerPosition }` ),
  260. widget: view.domConverter.mapViewToDom( widget )
  261. };
  262. }
  263. function getElementCenterPoint( domWrapper, cornerPosition ) {
  264. const wrapperRect = new Rect( domWrapper );
  265. const initialPointerPosition = {
  266. pageX: wrapperRect.left,
  267. pageY: wrapperRect.top
  268. };
  269. const cornerPositionParts = cornerPosition.split( '-' );
  270. if ( cornerPositionParts.includes( 'right' ) ) {
  271. initialPointerPosition.pageX = wrapperRect.right;
  272. }
  273. if ( cornerPositionParts.includes( 'bottom' ) ) {
  274. initialPointerPosition.pageY = wrapperRect.bottom;
  275. }
  276. return initialPointerPosition;
  277. }
  278. function focusEditor( editor ) {
  279. editor.editing.view.focus();
  280. editor.ui.focusTracker.isFocused = true;
  281. }
  282. } );