markers.js 3.8 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. /* globals console, window, document */
  6. import ClassicEditor from '@ckeditor/ckeditor5-editor-classic/src/classic';
  7. import Enter from '@ckeditor/ckeditor5-enter/src/enter';
  8. import Typing from '@ckeditor/ckeditor5-typing/src/typing';
  9. import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';
  10. import Bold from '@ckeditor/ckeditor5-basic-styles/src/bold';
  11. import Italic from '@ckeditor/ckeditor5-basic-styles/src/italic';
  12. import List from '@ckeditor/ckeditor5-list/src/list';
  13. import Heading from '@ckeditor/ckeditor5-heading/src/heading';
  14. import Undo from '@ckeditor/ckeditor5-undo/src/undo';
  15. import buildModelConverter from '../../src/conversion/buildmodelconverter';
  16. import Position from '../../src/model/position';
  17. import LiveRange from '../../src/model/liverange';
  18. import ViewAttributeElement from '../../src/view/attributeelement';
  19. let model = null;
  20. ClassicEditor.create( document.querySelector( '#editor' ), {
  21. plugins: [ Enter, Typing, Paragraph, Bold, Italic, List, Heading, Undo ],
  22. toolbar: [ 'headings', 'bold', 'italic', 'bulletedList', 'numberedList', 'undo', 'redo' ]
  23. } )
  24. .then( editor => {
  25. window.editor = editor;
  26. model = window.editor.editing.model;
  27. buildModelConverter().for( editor.editing.modelToView ).
  28. fromMarker( 'highlight' ).
  29. toElement( ( data ) => {
  30. const color = data.name.split( ':' )[ 1 ];
  31. return new ViewAttributeElement( 'span', { class: 'h-' + color } );
  32. } );
  33. window.document.getElementById( 'add-yellow' ).addEventListener( 'click', () => addHighlight( 'yellow' ) );
  34. window.document.getElementById( 'add-red' ).addEventListener( 'click', () => addHighlight( 'red' ) );
  35. window.document.getElementById( 'remove-marker' ).addEventListener( 'click', () => removeHighlight() );
  36. window.document.getElementById( 'move-to-start' ).addEventListener( 'click', () => moveSelectionToStart() );
  37. window.document.getElementById( 'move-left' ).addEventListener( 'click', () => moveSelectionByOffset( -1 ) );
  38. window.document.getElementById( 'move-right' ).addEventListener( 'click', () => moveSelectionByOffset( 1 ) );
  39. model.enqueueChanges( () => {
  40. const root = model.getRoot();
  41. const range = new LiveRange( new Position( root, [ 0, 10 ] ), new Position( root, [ 0, 16 ] ) );
  42. const name = 'highlight:yellow:' + uid();
  43. markerNames.push( name );
  44. model.markers.set( name, range );
  45. } );
  46. } )
  47. .catch( err => {
  48. console.error( err.stack );
  49. } );
  50. const markerNames = [];
  51. let _uid = 1;
  52. function uid() {
  53. return _uid++;
  54. }
  55. function addHighlight( color ) {
  56. model.enqueueChanges( () => {
  57. const range = LiveRange.createFromRange( model.selection.getFirstRange() );
  58. const name = 'highlight:' + color + ':' + uid();
  59. markerNames.push( name );
  60. model.markers.set( name, range );
  61. } );
  62. }
  63. function removeHighlight() {
  64. model.enqueueChanges( () => {
  65. const pos = model.selection.getFirstPosition();
  66. for ( let i = 0; i < markerNames.length; i++ ) {
  67. const name = markerNames[ i ];
  68. const marker = model.markers.get( name );
  69. const range = marker.getRange();
  70. if ( range.containsPosition( pos ) || range.start.isEqual( pos ) || range.end.isEqual( pos ) ) {
  71. model.markers.remove( name );
  72. markerNames.splice( i, 1 );
  73. break;
  74. }
  75. }
  76. } );
  77. }
  78. function moveSelectionToStart() {
  79. const range = model.selection.getFirstRange();
  80. if ( range.isFlat ) {
  81. model.enqueueChanges( () => {
  82. model.batch().move( range, new Position( model.getRoot(), [ 0, 0 ] ) );
  83. } );
  84. }
  85. }
  86. function moveSelectionByOffset( offset ) {
  87. const range = model.selection.getFirstRange();
  88. const pos = offset < 0 ? range.start : range.end;
  89. if ( range.isFlat ) {
  90. model.enqueueChanges( () => {
  91. model.batch().move( range, pos.getShiftedBy( offset ) );
  92. } );
  93. }
  94. }