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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. view = new DropdownView( locale, buttonView, panelView );
  18. view.render();
  19. } );
  20. describe( 'constructor()', () => {
  21. it( 'sets view#locale', () => {
  22. expect( view.locale ).to.equal( locale );
  23. } );
  24. it( 'sets view#buttonView', () => {
  25. expect( view.buttonView ).to.equal( buttonView );
  26. } );
  27. it( 'sets view#panelView', () => {
  28. expect( view.panelView ).to.equal( panelView );
  29. } );
  30. it( 'sets view#isOpen false', () => {
  31. expect( view.isOpen ).to.be.false;
  32. } );
  33. it( 'creates #focusTracker instance', () => {
  34. expect( view.focusTracker ).to.be.instanceOf( FocusTracker );
  35. } );
  36. it( 'creates #keystrokeHandler instance', () => {
  37. expect( view.keystrokes ).to.be.instanceOf( KeystrokeHandler );
  38. } );
  39. it( 'creates #element from template', () => {
  40. expect( view.element.classList.contains( 'ck-dropdown' ) ).to.be.true;
  41. expect( view.element.firstChild ).to.equal( buttonView.element );
  42. expect( view.element.lastChild ).to.equal( panelView.element );
  43. } );
  44. it( 'sets view#buttonView class', () => {
  45. expect( view.buttonView.element.classList.contains( 'ck-dropdown__button' ) ).to.be.true;
  46. } );
  47. describe( 'bindings', () => {
  48. describe( 'view#isOpen to view.buttonView#execute', () => {
  49. it( 'is activated', () => {
  50. const values = [];
  51. view.on( 'change:isOpen', () => {
  52. values.push( view.isOpen );
  53. } );
  54. view.buttonView.fire( 'execute' );
  55. view.buttonView.fire( 'execute' );
  56. view.buttonView.fire( 'execute' );
  57. expect( values ).to.have.members( [ true, false, true ] );
  58. } );
  59. } );
  60. describe( 'view.panelView#isVisible to view#isOpen', () => {
  61. it( 'is activated', () => {
  62. const values = [];
  63. view.listenTo( view.panelView, 'change:isVisible', () => {
  64. values.push( view.isOpen );
  65. } );
  66. view.isOpen = true;
  67. view.isOpen = false;
  68. view.isOpen = true;
  69. expect( values ).to.have.members( [ true, false, true ] );
  70. } );
  71. } );
  72. } );
  73. } );
  74. describe( 'render()', () => {
  75. it( 'starts listening for #keystrokes coming from #element', () => {
  76. view = new DropdownView( locale,
  77. new ButtonView( locale ),
  78. new DropdownPanelView( locale ) );
  79. const spy = sinon.spy( view.keystrokes, 'listenTo' );
  80. view.render();
  81. sinon.assert.calledOnce( spy );
  82. sinon.assert.calledWithExactly( spy, view.element );
  83. } );
  84. it( 'adds #element to #focusTracker', () => {
  85. view = new DropdownView( locale,
  86. new ButtonView( locale ),
  87. new DropdownPanelView( locale ) );
  88. const spy = sinon.spy( view.focusTracker, 'add' );
  89. view.render();
  90. sinon.assert.calledOnce( spy );
  91. sinon.assert.calledWithExactly( spy, view.element );
  92. } );
  93. describe( 'activates keyboard navigation for the dropdown', () => {
  94. it( 'so "arrowdown" opens the #panelView', () => {
  95. const keyEvtData = {
  96. keyCode: keyCodes.arrowdown,
  97. preventDefault: sinon.spy(),
  98. stopPropagation: sinon.spy()
  99. };
  100. view.buttonView.isEnabled = true;
  101. view.isOpen = true;
  102. view.keystrokes.press( keyEvtData );
  103. sinon.assert.notCalled( keyEvtData.preventDefault );
  104. sinon.assert.notCalled( keyEvtData.stopPropagation );
  105. expect( view.isOpen ).to.be.true;
  106. view.isOpen = false;
  107. view.keystrokes.press( keyEvtData );
  108. sinon.assert.calledOnce( keyEvtData.preventDefault );
  109. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  110. expect( view.isOpen ).to.be.true;
  111. } );
  112. it( 'so "arrowdown" won\'t open the #panelView when #isEnabled is false', () => {
  113. const keyEvtData = {
  114. keyCode: keyCodes.arrowdown,
  115. preventDefault: sinon.spy(),
  116. stopPropagation: sinon.spy()
  117. };
  118. view.buttonView.isEnabled = false;
  119. view.isOpen = false;
  120. view.keystrokes.press( keyEvtData );
  121. sinon.assert.notCalled( keyEvtData.preventDefault );
  122. sinon.assert.notCalled( keyEvtData.stopPropagation );
  123. expect( view.isOpen ).to.be.false;
  124. } );
  125. it( 'so "arrowright" is blocked', () => {
  126. const keyEvtData = {
  127. keyCode: keyCodes.arrowright,
  128. preventDefault: sinon.spy(),
  129. stopPropagation: sinon.spy()
  130. };
  131. view.false = true;
  132. view.keystrokes.press( keyEvtData );
  133. sinon.assert.notCalled( keyEvtData.preventDefault );
  134. sinon.assert.notCalled( keyEvtData.stopPropagation );
  135. expect( view.isOpen ).to.be.false;
  136. view.isOpen = true;
  137. view.keystrokes.press( keyEvtData );
  138. sinon.assert.calledOnce( keyEvtData.preventDefault );
  139. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  140. expect( view.isOpen ).to.be.true;
  141. } );
  142. it( 'so "arrowleft" closes the #panelView', () => {
  143. const keyEvtData = {
  144. keyCode: keyCodes.arrowleft,
  145. preventDefault: sinon.spy(),
  146. stopPropagation: sinon.spy()
  147. };
  148. const spy = sinon.spy( view.buttonView, 'focus' );
  149. view.isOpen = false;
  150. view.keystrokes.press( keyEvtData );
  151. sinon.assert.notCalled( keyEvtData.preventDefault );
  152. sinon.assert.notCalled( keyEvtData.stopPropagation );
  153. sinon.assert.notCalled( spy );
  154. expect( view.isOpen ).to.be.false;
  155. view.isOpen = true;
  156. view.keystrokes.press( keyEvtData );
  157. sinon.assert.calledOnce( keyEvtData.preventDefault );
  158. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  159. sinon.assert.calledOnce( spy );
  160. expect( view.isOpen ).to.be.false;
  161. } );
  162. it( 'so "esc" closes the #panelView', () => {
  163. const keyEvtData = {
  164. keyCode: keyCodes.esc,
  165. preventDefault: sinon.spy(),
  166. stopPropagation: sinon.spy()
  167. };
  168. const spy = sinon.spy( view.buttonView, 'focus' );
  169. view.isOpen = false;
  170. view.keystrokes.press( keyEvtData );
  171. sinon.assert.notCalled( keyEvtData.preventDefault );
  172. sinon.assert.notCalled( keyEvtData.stopPropagation );
  173. sinon.assert.notCalled( spy );
  174. expect( view.isOpen ).to.be.false;
  175. view.isOpen = true;
  176. view.keystrokes.press( keyEvtData );
  177. sinon.assert.calledOnce( keyEvtData.preventDefault );
  178. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  179. sinon.assert.calledOnce( spy );
  180. expect( view.isOpen ).to.be.false;
  181. } );
  182. } );
  183. } );
  184. describe( 'focus()', () => {
  185. it( 'focuses the #buttonView in DOM', () => {
  186. const spy = sinon.spy( view.buttonView, 'focus' );
  187. view.focus();
  188. sinon.assert.calledOnce( spy );
  189. } );
  190. } );
  191. } );