image.js 5.3 KB

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  1. /**
  2. * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md.
  4. */
  5. import Feature from '../core/feature.js';
  6. import ImageEngine from './imageengine.js';
  7. import ViewRange from '../engine/view/range.js';
  8. import ModelLiveRange from '../engine/model/liverange.js';
  9. import ModelRange from '../engine/model/range.js';
  10. import ViewPosition from '../engine/view/position.js';
  11. import ViewSelection from '../engine/view/selection.js';
  12. import MouseDownObserver from './mousedownobserver.js';
  13. export default class Image extends Feature {
  14. /**
  15. * @inheritDoc
  16. */
  17. static get requires() {
  18. return [ ImageEngine ];
  19. }
  20. init() {
  21. const editor = this.editor;
  22. const modelDocument = editor.document;
  23. const viewDocument = editor.editing.view;
  24. const editingPipeline = editor.editing;
  25. const selected = new Set();
  26. // Prevent selection change on mousedown.
  27. viewDocument.addObserver( MouseDownObserver );
  28. viewDocument.on( 'mousedown', ( eventInfo, domEventData ) => {
  29. const target = domEventData.target;
  30. if ( isImageWidget( target ) ) {
  31. domEventData.preventDefault();
  32. if ( !viewDocument.isFocused ) {
  33. viewDocument.focus();
  34. }
  35. const viewRange = ViewRange.createOn( target );
  36. const modelRange = ModelLiveRange.createFromRange( editingPipeline.mapper.toModelRange( viewRange ) );
  37. modelDocument.enqueueChanges( ( ) => {
  38. modelDocument.selection.setRanges( [ modelRange ] );
  39. } );
  40. }
  41. } );
  42. // Handle selection placing inside figure - convert it to selecting whole image widget.
  43. viewDocument.on( 'selectionChange', ( eventInfo, data ) => {
  44. const newSelection = data.newSelection;
  45. if ( newSelection.rangeCount && newSelection.getFirstPosition().parent.name == 'figure' ) {
  46. eventInfo.stop();
  47. const viewRange = ViewRange.createOn( newSelection.getFirstPosition().parent );
  48. const modelRange = ModelLiveRange.createFromRange( editingPipeline.mapper.toModelRange( viewRange ) );
  49. modelDocument.enqueueChanges( ( ) => {
  50. modelDocument.selection.setRanges( [ modelRange ] );
  51. } );
  52. }
  53. }, { priority: 'high' } );
  54. viewDocument.on( 'keydown', ( eventInfo, data ) => {
  55. const viewSelection = viewDocument.selection;
  56. if ( viewSelection.isFake && !viewSelection.isCollapsed && viewSelection.rangeCount == 1 ) {
  57. const nodeAfter = viewSelection.anchor.nodeAfter;
  58. const nodeBefore = viewSelection.focus.nodeBefore;
  59. if ( nodeAfter === nodeBefore && isImageWidget( nodeAfter ) ) {
  60. // Stop to prevent default fake selection handling.
  61. eventInfo.stop();
  62. // Prevent selection change.
  63. data.preventDefault();
  64. if ( data.keyCode == 39 || data.keyCode == 40 ) {
  65. // TODO: Check if sibling exists.
  66. // const modelElement = editingPipeline.mapper.toModelElement( nodeAfter.nextSibling );
  67. // const modelPosition = ModelPosition.createAt( modelElement );
  68. // const modelRange = new ModelLiveRange( modelPosition );
  69. //
  70. // modelDocument.enqueueChanges( () => {
  71. // modelDocument.selection.setRanges( [ modelRange ] );
  72. // } );
  73. const viewPosition = ViewPosition.createAt( nodeAfter.nextSibling );
  74. const viewRange = new ViewRange( viewPosition );
  75. const newSelection = new ViewSelection();
  76. newSelection.addRange( viewRange );
  77. viewDocument.fire( 'selectionChange', {
  78. oldSelection: viewDocument.selection,
  79. newSelection: newSelection,
  80. domSelection: null
  81. } );
  82. }
  83. if ( data.keyCode == 37 || data.keyCode == 38 ) {
  84. // const modelElement = editingPipeline.mapper.toModelElement( nodeAfter.previousSibling );
  85. // const modelPosition = ModelPosition.createAt( modelElement, 'end' );
  86. // const modelRange = new ModelLiveRange( modelPosition );
  87. //
  88. // modelDocument.enqueueChanges( () => {
  89. // modelDocument.selection.setRanges( [ modelRange ] );
  90. // } );
  91. const viewPosition = ViewPosition.createAt( nodeAfter.previousSibling, 'end' );
  92. const viewRange = new ViewRange( viewPosition );
  93. const newSelection = new ViewSelection();
  94. newSelection.addRange( viewRange );
  95. viewDocument.fire( 'selectionChange', {
  96. oldSelection: viewDocument.selection,
  97. newSelection: newSelection,
  98. domSelection: null
  99. } );
  100. }
  101. }
  102. }
  103. } );
  104. // Handle selection conversion.
  105. editingPipeline.modelToView.on( 'selection', ( evt, data, consumable, conversionApi ) => {
  106. const viewSelection = conversionApi.viewSelection;
  107. const range = data.selection.getFirstRange();
  108. const nodeAfterStart = range.start.nodeAfter;
  109. // remove selection from all selected widgets
  110. for ( let viewElement of selected ) {
  111. viewElement.removeClass( 'selected' );
  112. }
  113. // This could be just one element instead of set.
  114. selected.clear();
  115. if ( !data.selection.isCollapsed && nodeAfterStart && nodeAfterStart.name == 'image' && ModelRange.createOn( nodeAfterStart ).isEqual( range ) ) {
  116. viewSelection.setFake( true, { label: 'image fake selection' } );
  117. const viewElement = conversionApi.mapper.toViewElement( nodeAfterStart );
  118. viewElement.addClass( 'selected' );
  119. selected.add( viewElement );
  120. }
  121. }, { priority: 'low' } );
  122. }
  123. }
  124. function isImageWidget( viewElement ) {
  125. // TODO: check CSS class.
  126. return viewElement.isWidget && viewElement.name == 'figure' && viewElement.hasClass( 'image' );
  127. }