domeventobserver.js 2.7 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. import DomEventObserver from '/ckeditor5/core/treeview/observer/domeventobserver.js';
  8. import TreeView from '/ckeditor5/core/treeview/treeview.js';
  9. class TestObserver extends DomEventObserver {
  10. constructor( id ) {
  11. super();
  12. this.id = id;
  13. this.domEventType = 'click';
  14. }
  15. onDomEvent( domEvt ) {
  16. this.fire( 'click', this.id, domEvt );
  17. }
  18. }
  19. describe( 'DomEventObserver', () => {
  20. it( 'should add event lister', () => {
  21. const testObserver = new TestObserver( 'foo' );
  22. const domElement = document.createElement( 'p' );
  23. const domEvent = new MouseEvent( 'click' );
  24. const treeView = new TreeView();
  25. const evtSpy = sinon.spy();
  26. treeView.createRoot( domElement, 'root' );
  27. treeView.addObserver( testObserver );
  28. treeView.on( 'click', evtSpy );
  29. domElement.dispatchEvent( domEvent );
  30. expect( evtSpy.calledOnce ).to.be.true;
  31. expect( evtSpy.args[ 0 ][ 1 ] ).to.equal( 'foo' );
  32. expect( evtSpy.args[ 0 ][ 2 ] ).to.equal( domEvent );
  33. } );
  34. it( 'should not fire event if observer is disabled', () => {
  35. const testObserver = new TestObserver( 'foo' );
  36. const domElement = document.createElement( 'p' );
  37. const domEvent = new MouseEvent( 'click' );
  38. const treeView = new TreeView();
  39. const evtSpy = sinon.spy();
  40. treeView.createRoot( domElement, 'root' );
  41. treeView.addObserver( testObserver );
  42. treeView.on( 'click', evtSpy );
  43. testObserver.disable();
  44. domElement.dispatchEvent( domEvent );
  45. expect( evtSpy.called ).to.be.false;
  46. } );
  47. it( 'should be fire event if observer is disabled and re-enabled', () => {
  48. const testObserver = new TestObserver( 'foo' );
  49. const domElement = document.createElement( 'p' );
  50. const domEvent = new MouseEvent( 'click' );
  51. const treeView = new TreeView();
  52. const evtSpy = sinon.spy();
  53. treeView.createRoot( domElement, 'root' );
  54. treeView.addObserver( testObserver );
  55. treeView.on( 'click', evtSpy );
  56. testObserver.disable();
  57. domElement.dispatchEvent( domEvent );
  58. expect( evtSpy.called ).to.be.false;
  59. testObserver.enable();
  60. domElement.dispatchEvent( domEvent );
  61. expect( evtSpy.calledOnce ).to.be.true;
  62. } );
  63. describe( 'fire', () => {
  64. it( 'should do nothing if observer is disabled', () => {
  65. const testObserver = new TestObserver();
  66. const treeView = new TreeView();
  67. const fireSpy = sinon.spy( treeView, 'fire' );
  68. testObserver.init( treeView );
  69. testObserver.disable();
  70. testObserver.fire( 'click' );
  71. expect( fireSpy.called ).to.be.false;
  72. testObserver.enable();
  73. testObserver.fire( 'click' );
  74. expect( fireSpy.calledOnce ).to.be.true;
  75. } );
  76. } );
  77. } );