dropdownview.js 7.4 KB

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  1. /**
  2. * @license Copyright (c) 2003-2018, 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( 'sets view#isEnabled true', () => {
  34. expect( view.isEnabled ).to.be.true;
  35. } );
  36. it( 'creates #focusTracker instance', () => {
  37. expect( view.focusTracker ).to.be.instanceOf( FocusTracker );
  38. } );
  39. it( 'creates #keystrokeHandler instance', () => {
  40. expect( view.keystrokes ).to.be.instanceOf( KeystrokeHandler );
  41. } );
  42. it( 'creates #element from template', () => {
  43. expect( view.element.classList.contains( 'ck-dropdown' ) ).to.be.true;
  44. expect( view.element.children ).to.have.length( 2 );
  45. expect( view.element.children[ 0 ] ).to.equal( buttonView.element );
  46. expect( view.element.children[ 1 ] ).to.equal( panelView.element );
  47. } );
  48. it( 'sets view#buttonView class', () => {
  49. expect( view.buttonView.element.classList.contains( 'ck-dropdown__button' ) ).to.be.true;
  50. } );
  51. describe( 'bindings', () => {
  52. describe( 'view#isOpen to view.buttonView#select', () => {
  53. it( 'is activated', () => {
  54. const values = [];
  55. view.on( 'change:isOpen', () => {
  56. values.push( view.isOpen );
  57. } );
  58. view.buttonView.fire( 'select' );
  59. view.buttonView.fire( 'select' );
  60. view.buttonView.fire( 'select' );
  61. expect( values ).to.have.members( [ true, false, true ] );
  62. } );
  63. } );
  64. describe( 'view.panelView#isVisible to view#isOpen', () => {
  65. it( 'is activated', () => {
  66. const values = [];
  67. view.listenTo( view.panelView, 'change:isVisible', () => {
  68. values.push( view.isOpen );
  69. } );
  70. view.isOpen = true;
  71. view.isOpen = false;
  72. view.isOpen = true;
  73. expect( values ).to.have.members( [ true, false, true ] );
  74. } );
  75. } );
  76. describe( 'DOM', () => {
  77. describe( 'view#element .ck-disabled class to view#isEnabled', () => {
  78. it( 'is activated', () => {
  79. view.isEnabled = true;
  80. expect( view.element.classList.contains( 'ck-disabled' ) ).to.be.false;
  81. view.isEnabled = false;
  82. expect( view.element.classList.contains( 'ck-disabled' ) ).to.be.true;
  83. } );
  84. } );
  85. } );
  86. } );
  87. } );
  88. describe( 'render()', () => {
  89. it( 'starts listening for #keystrokes coming from #element', () => {
  90. view = new DropdownView( locale,
  91. new ButtonView( locale ),
  92. new DropdownPanelView( locale ) );
  93. const spy = sinon.spy( view.keystrokes, 'listenTo' );
  94. view.render();
  95. sinon.assert.calledOnce( spy );
  96. sinon.assert.calledWithExactly( spy, view.element );
  97. } );
  98. it( 'adds #element to #focusTracker', () => {
  99. view = new DropdownView( locale,
  100. new ButtonView( locale ),
  101. new DropdownPanelView( locale ) );
  102. const spy = sinon.spy( view.focusTracker, 'add' );
  103. view.render();
  104. sinon.assert.calledOnce( spy );
  105. sinon.assert.calledWithExactly( spy, view.element );
  106. } );
  107. describe( 'activates keyboard navigation for the dropdown', () => {
  108. it( 'so "arrowdown" opens the #panelView', () => {
  109. const keyEvtData = {
  110. keyCode: keyCodes.arrowdown,
  111. preventDefault: sinon.spy(),
  112. stopPropagation: sinon.spy()
  113. };
  114. view.buttonView.isEnabled = true;
  115. view.isOpen = true;
  116. view.keystrokes.press( keyEvtData );
  117. sinon.assert.notCalled( keyEvtData.preventDefault );
  118. sinon.assert.notCalled( keyEvtData.stopPropagation );
  119. expect( view.isOpen ).to.be.true;
  120. view.isOpen = false;
  121. view.keystrokes.press( keyEvtData );
  122. sinon.assert.calledOnce( keyEvtData.preventDefault );
  123. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  124. expect( view.isOpen ).to.be.true;
  125. } );
  126. it( 'so "arrowdown" won\'t open the #panelView when #isEnabled is false', () => {
  127. const keyEvtData = {
  128. keyCode: keyCodes.arrowdown,
  129. preventDefault: sinon.spy(),
  130. stopPropagation: sinon.spy()
  131. };
  132. view.buttonView.isEnabled = false;
  133. view.isOpen = false;
  134. view.keystrokes.press( keyEvtData );
  135. sinon.assert.notCalled( keyEvtData.preventDefault );
  136. sinon.assert.notCalled( keyEvtData.stopPropagation );
  137. expect( view.isOpen ).to.be.false;
  138. } );
  139. it( 'so "arrowright" is blocked', () => {
  140. const keyEvtData = {
  141. keyCode: keyCodes.arrowright,
  142. preventDefault: sinon.spy(),
  143. stopPropagation: sinon.spy()
  144. };
  145. view.false = true;
  146. view.keystrokes.press( keyEvtData );
  147. sinon.assert.notCalled( keyEvtData.preventDefault );
  148. sinon.assert.notCalled( keyEvtData.stopPropagation );
  149. expect( view.isOpen ).to.be.false;
  150. view.isOpen = true;
  151. view.keystrokes.press( keyEvtData );
  152. sinon.assert.calledOnce( keyEvtData.preventDefault );
  153. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  154. expect( view.isOpen ).to.be.true;
  155. } );
  156. it( 'so "arrowleft" closes the #panelView', () => {
  157. const keyEvtData = {
  158. keyCode: keyCodes.arrowleft,
  159. preventDefault: sinon.spy(),
  160. stopPropagation: sinon.spy()
  161. };
  162. const spy = sinon.spy( view.buttonView, 'focus' );
  163. view.isOpen = false;
  164. view.keystrokes.press( keyEvtData );
  165. sinon.assert.notCalled( keyEvtData.preventDefault );
  166. sinon.assert.notCalled( keyEvtData.stopPropagation );
  167. sinon.assert.notCalled( spy );
  168. expect( view.isOpen ).to.be.false;
  169. view.isOpen = true;
  170. view.keystrokes.press( keyEvtData );
  171. sinon.assert.calledOnce( keyEvtData.preventDefault );
  172. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  173. sinon.assert.calledOnce( spy );
  174. expect( view.isOpen ).to.be.false;
  175. } );
  176. it( 'so "esc" closes the #panelView', () => {
  177. const keyEvtData = {
  178. keyCode: keyCodes.esc,
  179. preventDefault: sinon.spy(),
  180. stopPropagation: sinon.spy()
  181. };
  182. const spy = sinon.spy( view.buttonView, 'focus' );
  183. view.isOpen = false;
  184. view.keystrokes.press( keyEvtData );
  185. sinon.assert.notCalled( keyEvtData.preventDefault );
  186. sinon.assert.notCalled( keyEvtData.stopPropagation );
  187. sinon.assert.notCalled( spy );
  188. expect( view.isOpen ).to.be.false;
  189. view.isOpen = true;
  190. view.keystrokes.press( keyEvtData );
  191. sinon.assert.calledOnce( keyEvtData.preventDefault );
  192. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  193. sinon.assert.calledOnce( spy );
  194. expect( view.isOpen ).to.be.false;
  195. } );
  196. } );
  197. } );
  198. describe( 'focus()', () => {
  199. it( 'focuses the #buttonView in DOM', () => {
  200. const spy = sinon.spy( view.buttonView, 'focus' );
  201. view.focus();
  202. sinon.assert.calledOnce( spy );
  203. } );
  204. } );
  205. } );