dropdownview.js 6.9 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. import DropdownView from '../../src/dropdown/dropdownview';
  6. import KeystrokeHandler from '@ckeditor/ckeditor5-utils/src/keystrokehandler';
  7. import FocusTracker from '@ckeditor/ckeditor5-utils/src/focustracker';
  8. import { keyCodes } from '@ckeditor/ckeditor5-utils/src/keyboard';
  9. import ButtonView from '../../src/button/buttonview';
  10. import DropdownPanelView from '../../src/dropdown/dropdownpanelview';
  11. describe( 'DropdownView', () => {
  12. let view, buttonView, panelView, locale;
  13. beforeEach( () => {
  14. locale = { t() {} };
  15. buttonView = new ButtonView( locale );
  16. panelView = new DropdownPanelView( locale );
  17. return ( view = new DropdownView( locale, buttonView, panelView ) ).init();
  18. } );
  19. describe( 'constructor()', () => {
  20. it( 'sets view#locale', () => {
  21. expect( view.locale ).to.equal( locale );
  22. } );
  23. it( 'sets view#buttonView', () => {
  24. expect( view.buttonView ).to.equal( buttonView );
  25. } );
  26. it( 'sets view#panelView', () => {
  27. expect( view.panelView ).to.equal( panelView );
  28. } );
  29. it( 'sets view#isOpen false', () => {
  30. expect( view.isOpen ).to.be.false;
  31. } );
  32. it( 'creates #focusTracker instance', () => {
  33. expect( view.focusTracker ).to.be.instanceOf( FocusTracker );
  34. } );
  35. it( 'creates #keystrokeHandler instance', () => {
  36. expect( view.keystrokes ).to.be.instanceOf( KeystrokeHandler );
  37. } );
  38. it( 'creates #element from template', () => {
  39. expect( view.element.classList.contains( 'ck-dropdown' ) ).to.be.true;
  40. expect( view.element.firstChild ).to.equal( buttonView.element );
  41. expect( view.element.lastChild ).to.equal( panelView.element );
  42. } );
  43. it( 'sets view#buttonView class', () => {
  44. expect( view.buttonView.element.classList.contains( 'ck-dropdown__button' ) ).to.be.true;
  45. } );
  46. describe( 'bindings', () => {
  47. describe( 'view#isOpen to view.buttonView#execute', () => {
  48. it( 'is activated', () => {
  49. const values = [];
  50. view.on( 'change:isOpen', () => {
  51. values.push( view.isOpen );
  52. } );
  53. view.buttonView.fire( 'execute' );
  54. view.buttonView.fire( 'execute' );
  55. view.buttonView.fire( 'execute' );
  56. expect( values ).to.have.members( [ true, false, true ] );
  57. } );
  58. } );
  59. describe( 'view.panelView#isVisible to view#isOpen', () => {
  60. it( 'is activated', () => {
  61. const values = [];
  62. view.listenTo( view.panelView, 'change:isVisible', () => {
  63. values.push( view.isOpen );
  64. } );
  65. view.isOpen = true;
  66. view.isOpen = false;
  67. view.isOpen = true;
  68. expect( values ).to.have.members( [ true, false, true ] );
  69. } );
  70. } );
  71. } );
  72. } );
  73. describe( 'init()', () => {
  74. it( 'starts listening for #keystrokes coming from #element', () => {
  75. view = new DropdownView( locale,
  76. new ButtonView( locale ),
  77. new DropdownPanelView( locale ) );
  78. const spy = sinon.spy( view.keystrokes, 'listenTo' );
  79. view.init();
  80. sinon.assert.calledOnce( spy );
  81. sinon.assert.calledWithExactly( spy, view.element );
  82. } );
  83. it( 'adds #element to #focusTracker', () => {
  84. view = new DropdownView( locale,
  85. new ButtonView( locale ),
  86. new DropdownPanelView( locale ) );
  87. const spy = sinon.spy( view.focusTracker, 'add' );
  88. view.init();
  89. sinon.assert.calledOnce( spy );
  90. sinon.assert.calledWithExactly( spy, view.element );
  91. } );
  92. describe( 'activates keyboard navigation for the dropdown', () => {
  93. it( 'so "arrowdown" opens the #panelView', () => {
  94. const keyEvtData = {
  95. keyCode: keyCodes.arrowdown,
  96. preventDefault: sinon.spy(),
  97. stopPropagation: sinon.spy()
  98. };
  99. view.buttonView.isEnabled = true;
  100. view.isOpen = true;
  101. view.keystrokes.press( keyEvtData );
  102. sinon.assert.notCalled( keyEvtData.preventDefault );
  103. sinon.assert.notCalled( keyEvtData.stopPropagation );
  104. expect( view.isOpen ).to.be.true;
  105. view.isOpen = false;
  106. view.keystrokes.press( keyEvtData );
  107. sinon.assert.calledOnce( keyEvtData.preventDefault );
  108. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  109. expect( view.isOpen ).to.be.true;
  110. } );
  111. it( 'so "arrowdown" won\'t open the #panelView when #isEnabled is false', () => {
  112. const keyEvtData = {
  113. keyCode: keyCodes.arrowdown,
  114. preventDefault: sinon.spy(),
  115. stopPropagation: sinon.spy()
  116. };
  117. view.buttonView.isEnabled = false;
  118. view.isOpen = false;
  119. view.keystrokes.press( keyEvtData );
  120. sinon.assert.notCalled( keyEvtData.preventDefault );
  121. sinon.assert.notCalled( keyEvtData.stopPropagation );
  122. expect( view.isOpen ).to.be.false;
  123. } );
  124. it( 'so "arrowright" is blocked', () => {
  125. const keyEvtData = {
  126. keyCode: keyCodes.arrowright,
  127. preventDefault: sinon.spy(),
  128. stopPropagation: sinon.spy()
  129. };
  130. view.false = true;
  131. view.keystrokes.press( keyEvtData );
  132. sinon.assert.notCalled( keyEvtData.preventDefault );
  133. sinon.assert.notCalled( keyEvtData.stopPropagation );
  134. expect( view.isOpen ).to.be.false;
  135. view.isOpen = true;
  136. view.keystrokes.press( keyEvtData );
  137. sinon.assert.calledOnce( keyEvtData.preventDefault );
  138. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  139. expect( view.isOpen ).to.be.true;
  140. } );
  141. it( 'so "arrowleft" closes the #panelView', () => {
  142. const keyEvtData = {
  143. keyCode: keyCodes.arrowleft,
  144. preventDefault: sinon.spy(),
  145. stopPropagation: sinon.spy()
  146. };
  147. const spy = sinon.spy( view.buttonView, 'focus' );
  148. view.isOpen = false;
  149. view.keystrokes.press( keyEvtData );
  150. sinon.assert.notCalled( keyEvtData.preventDefault );
  151. sinon.assert.notCalled( keyEvtData.stopPropagation );
  152. sinon.assert.notCalled( spy );
  153. expect( view.isOpen ).to.be.false;
  154. view.isOpen = true;
  155. view.keystrokes.press( keyEvtData );
  156. sinon.assert.calledOnce( keyEvtData.preventDefault );
  157. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  158. sinon.assert.calledOnce( spy );
  159. expect( view.isOpen ).to.be.false;
  160. } );
  161. it( 'so "esc" closes the #panelView', () => {
  162. const keyEvtData = {
  163. keyCode: keyCodes.esc,
  164. preventDefault: sinon.spy(),
  165. stopPropagation: sinon.spy()
  166. };
  167. const spy = sinon.spy( view.buttonView, 'focus' );
  168. view.isOpen = false;
  169. view.keystrokes.press( keyEvtData );
  170. sinon.assert.notCalled( keyEvtData.preventDefault );
  171. sinon.assert.notCalled( keyEvtData.stopPropagation );
  172. sinon.assert.notCalled( spy );
  173. expect( view.isOpen ).to.be.false;
  174. view.isOpen = true;
  175. view.keystrokes.press( keyEvtData );
  176. sinon.assert.calledOnce( keyEvtData.preventDefault );
  177. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  178. sinon.assert.calledOnce( spy );
  179. expect( view.isOpen ).to.be.false;
  180. } );
  181. } );
  182. } );
  183. describe( 'focus()', () => {
  184. it( 'focuses the #buttonView in DOM', () => {
  185. const spy = sinon.spy( view.buttonView, 'focus' );
  186. view.focus();
  187. sinon.assert.calledOnce( spy );
  188. } );
  189. } );
  190. } );