dropdownview.js 7.7 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 IconView from '../../src/icon/iconview';
  11. import DropdownPanelView from '../../src/dropdown/dropdownpanelview';
  12. describe( 'DropdownView', () => {
  13. let view, buttonView, panelView, locale;
  14. beforeEach( () => {
  15. locale = { t() {} };
  16. buttonView = new ButtonView( locale );
  17. panelView = new DropdownPanelView( locale );
  18. view = new DropdownView( locale, buttonView, panelView );
  19. view.render();
  20. } );
  21. describe( 'constructor()', () => {
  22. it( 'sets view#locale', () => {
  23. expect( view.locale ).to.equal( locale );
  24. } );
  25. it( 'sets view#buttonView', () => {
  26. expect( view.buttonView ).to.equal( buttonView );
  27. } );
  28. it( 'sets view#panelView', () => {
  29. expect( view.panelView ).to.equal( panelView );
  30. } );
  31. it( 'sets view#isOpen false', () => {
  32. expect( view.isOpen ).to.be.false;
  33. } );
  34. it( 'sets view#isEnabled true', () => {
  35. expect( view.isEnabled ).to.be.true;
  36. } );
  37. it( 'creates #focusTracker instance', () => {
  38. expect( view.focusTracker ).to.be.instanceOf( FocusTracker );
  39. } );
  40. it( 'creates #keystrokeHandler instance', () => {
  41. expect( view.keystrokes ).to.be.instanceOf( KeystrokeHandler );
  42. } );
  43. it( 'creates #element from template', () => {
  44. expect( view.element.classList.contains( 'ck-dropdown' ) ).to.be.true;
  45. expect( view.element.children ).to.have.length( 3 );
  46. expect( view.element.children[ 0 ] ).to.equal( buttonView.element );
  47. expect( view.element.children[ 1 ] ).to.equal( view.arrowView.element );
  48. expect( view.element.children[ 2 ] ).to.equal( panelView.element );
  49. } );
  50. it( 'sets view#buttonView class', () => {
  51. expect( view.buttonView.element.classList.contains( 'ck-dropdown__button' ) ).to.be.true;
  52. } );
  53. it( 'creates #arrowView icon instance', () => {
  54. expect( view.arrowView ).to.be.instanceOf( IconView );
  55. expect( view.arrowView.element.classList.contains( 'ck-dropdown__arrow' ) );
  56. } );
  57. describe( 'bindings', () => {
  58. describe( 'view#isOpen to view.buttonView#select', () => {
  59. it( 'is activated', () => {
  60. const values = [];
  61. view.on( 'change:isOpen', () => {
  62. values.push( view.isOpen );
  63. } );
  64. view.buttonView.fire( 'select' );
  65. view.buttonView.fire( 'select' );
  66. view.buttonView.fire( 'select' );
  67. expect( values ).to.have.members( [ true, false, true ] );
  68. } );
  69. } );
  70. describe( 'view.panelView#isVisible to view#isOpen', () => {
  71. it( 'is activated', () => {
  72. const values = [];
  73. view.listenTo( view.panelView, 'change:isVisible', () => {
  74. values.push( view.isOpen );
  75. } );
  76. view.isOpen = true;
  77. view.isOpen = false;
  78. view.isOpen = true;
  79. expect( values ).to.have.members( [ true, false, true ] );
  80. } );
  81. } );
  82. describe( 'DOM', () => {
  83. describe( 'view#element .ck-disabled class to view#isEnabled', () => {
  84. it( 'is activated', () => {
  85. view.isEnabled = true;
  86. expect( view.element.classList.contains( 'ck-disabled' ) ).to.be.false;
  87. view.isEnabled = false;
  88. expect( view.element.classList.contains( 'ck-disabled' ) ).to.be.true;
  89. } );
  90. } );
  91. } );
  92. } );
  93. } );
  94. describe( 'render()', () => {
  95. it( 'starts listening for #keystrokes coming from #element', () => {
  96. view = new DropdownView( locale,
  97. new ButtonView( locale ),
  98. new DropdownPanelView( locale ) );
  99. const spy = sinon.spy( view.keystrokes, 'listenTo' );
  100. view.render();
  101. sinon.assert.calledOnce( spy );
  102. sinon.assert.calledWithExactly( spy, view.element );
  103. } );
  104. it( 'adds #element to #focusTracker', () => {
  105. view = new DropdownView( locale,
  106. new ButtonView( locale ),
  107. new DropdownPanelView( locale ) );
  108. const spy = sinon.spy( view.focusTracker, 'add' );
  109. view.render();
  110. sinon.assert.calledOnce( spy );
  111. sinon.assert.calledWithExactly( spy, view.element );
  112. } );
  113. describe( 'activates keyboard navigation for the dropdown', () => {
  114. it( 'so "arrowdown" opens the #panelView', () => {
  115. const keyEvtData = {
  116. keyCode: keyCodes.arrowdown,
  117. preventDefault: sinon.spy(),
  118. stopPropagation: sinon.spy()
  119. };
  120. view.buttonView.isEnabled = true;
  121. view.isOpen = true;
  122. view.keystrokes.press( keyEvtData );
  123. sinon.assert.notCalled( keyEvtData.preventDefault );
  124. sinon.assert.notCalled( keyEvtData.stopPropagation );
  125. expect( view.isOpen ).to.be.true;
  126. view.isOpen = false;
  127. view.keystrokes.press( keyEvtData );
  128. sinon.assert.calledOnce( keyEvtData.preventDefault );
  129. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  130. expect( view.isOpen ).to.be.true;
  131. } );
  132. it( 'so "arrowdown" won\'t open the #panelView when #isEnabled is false', () => {
  133. const keyEvtData = {
  134. keyCode: keyCodes.arrowdown,
  135. preventDefault: sinon.spy(),
  136. stopPropagation: sinon.spy()
  137. };
  138. view.buttonView.isEnabled = false;
  139. view.isOpen = false;
  140. view.keystrokes.press( keyEvtData );
  141. sinon.assert.notCalled( keyEvtData.preventDefault );
  142. sinon.assert.notCalled( keyEvtData.stopPropagation );
  143. expect( view.isOpen ).to.be.false;
  144. } );
  145. it( 'so "arrowright" is blocked', () => {
  146. const keyEvtData = {
  147. keyCode: keyCodes.arrowright,
  148. preventDefault: sinon.spy(),
  149. stopPropagation: sinon.spy()
  150. };
  151. view.false = true;
  152. view.keystrokes.press( keyEvtData );
  153. sinon.assert.notCalled( keyEvtData.preventDefault );
  154. sinon.assert.notCalled( keyEvtData.stopPropagation );
  155. expect( view.isOpen ).to.be.false;
  156. view.isOpen = true;
  157. view.keystrokes.press( keyEvtData );
  158. sinon.assert.calledOnce( keyEvtData.preventDefault );
  159. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  160. expect( view.isOpen ).to.be.true;
  161. } );
  162. it( 'so "arrowleft" closes the #panelView', () => {
  163. const keyEvtData = {
  164. keyCode: keyCodes.arrowleft,
  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. it( 'so "esc" closes the #panelView', () => {
  183. const keyEvtData = {
  184. keyCode: keyCodes.esc,
  185. preventDefault: sinon.spy(),
  186. stopPropagation: sinon.spy()
  187. };
  188. const spy = sinon.spy( view.buttonView, 'focus' );
  189. view.isOpen = false;
  190. view.keystrokes.press( keyEvtData );
  191. sinon.assert.notCalled( keyEvtData.preventDefault );
  192. sinon.assert.notCalled( keyEvtData.stopPropagation );
  193. sinon.assert.notCalled( spy );
  194. expect( view.isOpen ).to.be.false;
  195. view.isOpen = true;
  196. view.keystrokes.press( keyEvtData );
  197. sinon.assert.calledOnce( keyEvtData.preventDefault );
  198. sinon.assert.calledOnce( keyEvtData.stopPropagation );
  199. sinon.assert.calledOnce( spy );
  200. expect( view.isOpen ).to.be.false;
  201. } );
  202. } );
  203. } );
  204. describe( 'focus()', () => {
  205. it( 'focuses the #buttonView in DOM', () => {
  206. const spy = sinon.spy( view.buttonView, 'focus' );
  207. view.focus();
  208. sinon.assert.calledOnce( spy );
  209. } );
  210. } );
  211. } );