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domeventobserver.js 6.0 KB

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  1. /**
  2. * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md.
  4. */
  5. /* globals MouseEvent, document */
  6. import DomEventObserver from '../../../src/view/observer/domeventobserver';
  7. import Observer from '../../../src/view/observer/observer';
  8. import ViewDocument from '../../../src/view/document';
  9. import UIElement from '../../../src/view/uielement';
  10. import createViewRoot from '../_utils/createroot';
  11. class ClickObserver extends DomEventObserver {
  12. constructor( document ) {
  13. super( document );
  14. this.domEventType = 'click';
  15. }
  16. onDomEvent( domEvt ) {
  17. this.fire( 'click', domEvt, { foo: 1, bar: 2 } );
  18. }
  19. }
  20. class MultiObserver extends DomEventObserver {
  21. constructor( document ) {
  22. super( document );
  23. this.domEventType = [ 'evt1', 'evt2' ];
  24. }
  25. onDomEvent( domEvt ) {
  26. this.fire( domEvt.type, domEvt );
  27. }
  28. }
  29. class ClickCapturingObserver extends ClickObserver {
  30. constructor( document ) {
  31. super( document );
  32. this.useCapture = true;
  33. }
  34. }
  35. describe( 'DomEventObserver', () => {
  36. let viewDocument;
  37. beforeEach( () => {
  38. viewDocument = new ViewDocument();
  39. } );
  40. afterEach( () => {
  41. viewDocument.destroy();
  42. } );
  43. describe( 'constructor()', () => {
  44. it( 'should create Observer with properties', () => {
  45. const observer = new DomEventObserver( viewDocument );
  46. expect( observer ).to.be.an.instanceof( Observer );
  47. } );
  48. } );
  49. it( 'should add event listener', () => {
  50. const domElement = document.createElement( 'p' );
  51. const domEvent = new MouseEvent( 'click' );
  52. const evtSpy = sinon.spy();
  53. createViewRoot( viewDocument );
  54. viewDocument.attachDomRoot( domElement );
  55. viewDocument.addObserver( ClickObserver );
  56. viewDocument.on( 'click', evtSpy );
  57. domElement.dispatchEvent( domEvent );
  58. expect( evtSpy.calledOnce ).to.be.true;
  59. const data = evtSpy.args[ 0 ][ 1 ];
  60. expect( data ).to.have.property( 'foo', 1 );
  61. expect( data ).to.have.property( 'bar', 2 );
  62. expect( data ).to.have.property( 'domEvent', domEvent );
  63. } );
  64. it( 'should add multiple event listeners', () => {
  65. const domElement = document.createElement( 'p' );
  66. const domEvent1 = new MouseEvent( 'evt1' );
  67. const domEvent2 = new MouseEvent( 'evt2' );
  68. const evtSpy1 = sinon.spy();
  69. const evtSpy2 = sinon.spy();
  70. createViewRoot( viewDocument );
  71. viewDocument.attachDomRoot( domElement );
  72. viewDocument.addObserver( MultiObserver );
  73. viewDocument.on( 'evt1', evtSpy1 );
  74. viewDocument.on( 'evt2', evtSpy2 );
  75. domElement.dispatchEvent( domEvent1 );
  76. expect( evtSpy1.calledOnce ).to.be.true;
  77. domElement.dispatchEvent( domEvent2 );
  78. expect( evtSpy2.calledOnce ).to.be.true;
  79. } );
  80. it( 'should not fire event if observer is disabled', () => {
  81. const domElement = document.createElement( 'p' );
  82. const domEvent = new MouseEvent( 'click' );
  83. const evtSpy = sinon.spy();
  84. createViewRoot( viewDocument );
  85. viewDocument.attachDomRoot( domElement );
  86. const testObserver = viewDocument.addObserver( ClickObserver );
  87. viewDocument.on( 'click', evtSpy );
  88. testObserver.disable();
  89. domElement.dispatchEvent( domEvent );
  90. expect( evtSpy.called ).to.be.false;
  91. } );
  92. it( 'should fire event if observer is disabled and re-enabled', () => {
  93. const domElement = document.createElement( 'p' );
  94. const domEvent = new MouseEvent( 'click' );
  95. const evtSpy = sinon.spy();
  96. createViewRoot( viewDocument );
  97. viewDocument.attachDomRoot( domElement );
  98. const testObserver = viewDocument.addObserver( ClickObserver );
  99. viewDocument.on( 'click', evtSpy );
  100. testObserver.disable();
  101. domElement.dispatchEvent( domEvent );
  102. expect( evtSpy.called ).to.be.false;
  103. testObserver.enable();
  104. domElement.dispatchEvent( domEvent );
  105. expect( evtSpy.calledOnce ).to.be.true;
  106. } );
  107. it( 'should allow to listen events on capturing phase', done => {
  108. const domElement = document.createElement( 'div' );
  109. const childDomElement = document.createElement( 'p' );
  110. const domEvent = new MouseEvent( 'click' );
  111. domElement.appendChild( childDomElement );
  112. createViewRoot( viewDocument );
  113. viewDocument.attachDomRoot( domElement );
  114. viewDocument.addObserver( ClickCapturingObserver );
  115. viewDocument.on( 'click', ( evt, domEventData ) => {
  116. expect( domEventData.domEvent.eventPhase ).to.equal( domEventData.domEvent.CAPTURING_PHASE );
  117. done();
  118. } );
  119. childDomElement.dispatchEvent( domEvent );
  120. } );
  121. describe( 'integration with UIElement', () => {
  122. let domRoot, domEvent, evtSpy, uiElement;
  123. class MyUIElement extends UIElement {
  124. render( domDocument ) {
  125. const root = super.render( domDocument );
  126. root.innerHTML = '<span>foo bar</span>';
  127. return root;
  128. }
  129. }
  130. beforeEach( () => {
  131. domRoot = document.createElement( 'div' );
  132. const viewRoot = createViewRoot( viewDocument );
  133. viewDocument.attachDomRoot( domRoot );
  134. uiElement = new MyUIElement( 'p' );
  135. viewRoot.appendChildren( uiElement );
  136. viewDocument.render();
  137. domEvent = new MouseEvent( 'click', { bubbles: true } );
  138. evtSpy = sinon.spy();
  139. viewDocument.addObserver( ClickObserver );
  140. viewDocument.on( 'click', evtSpy );
  141. } );
  142. it( 'should fire events from UIElement itself', () => {
  143. const domUiElement = domRoot.querySelector( 'p' );
  144. domUiElement.dispatchEvent( domEvent );
  145. const data = evtSpy.args[ 0 ][ 1 ];
  146. sinon.assert.calledOnce( evtSpy );
  147. expect( data.target ).to.equal( uiElement );
  148. } );
  149. it( 'events from inside of UIElement should target UIElement', () => {
  150. const domUiElementChild = domRoot.querySelector( 'span' );
  151. domUiElementChild.dispatchEvent( domEvent );
  152. const data = evtSpy.args[ 0 ][ 1 ];
  153. sinon.assert.calledOnce( evtSpy );
  154. expect( data.target ).to.equal( uiElement );
  155. } );
  156. } );
  157. describe( 'fire', () => {
  158. it( 'should do nothing if observer is disabled', () => {
  159. const testObserver = new ClickObserver( viewDocument );
  160. const fireSpy = sinon.spy( viewDocument, 'fire' );
  161. testObserver.disable();
  162. testObserver.fire( 'click', {} );
  163. expect( fireSpy.called ).to.be.false;
  164. testObserver.enable();
  165. testObserver.fire( 'click', {} );
  166. expect( fireSpy.calledOnce ).to.be.true;
  167. } );
  168. } );
  169. } );