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linkengine.js 1.7 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. /**
  6. * @module link/linkengine
  7. */
  8. import Plugin from '@ckeditor/ckeditor5-core/src/plugin';
  9. import buildModelConverter from '@ckeditor/ckeditor5-engine/src/conversion/buildmodelconverter';
  10. import buildViewConverter from '@ckeditor/ckeditor5-engine/src/conversion/buildviewconverter';
  11. import LinkElement from './linkelement';
  12. import LinkCommand from './linkcommand';
  13. import UnlinkCommand from './unlinkcommand';
  14. /**
  15. * The link engine feature.
  16. *
  17. * It introduces the `linkHref="url"` attribute in the model which renders to the view as a `<a href="url">` element.
  18. *
  19. * @extends module:core/plugin~Plugin
  20. */
  21. export default class LinkEngine extends Plugin {
  22. /**
  23. * @inheritDoc
  24. */
  25. init() {
  26. const editor = this.editor;
  27. const data = editor.data;
  28. const editing = editor.editing;
  29. // Allow link attribute on all inline nodes.
  30. editor.document.schema.allow( { name: '$inline', attributes: 'linkHref' } );
  31. // Build converter from model to view for data and editing pipelines.
  32. buildModelConverter().for( data.modelToView, editing.modelToView )
  33. .fromAttribute( 'linkHref' )
  34. .toElement( ( linkHref ) => new LinkElement( 'a', { href: linkHref } ) );
  35. // Build converter from view to model for data pipeline.
  36. buildViewConverter().for( data.viewToModel )
  37. .fromElement( 'a' )
  38. .toAttribute( ( viewElement ) => ( {
  39. key: 'linkHref',
  40. value: viewElement.getAttribute( 'href' )
  41. } ) );
  42. // Create linking commands.
  43. editor.commands.set( 'link', new LinkCommand( editor ) );
  44. editor.commands.set( 'unlink', new UnlinkCommand( editor ) );
  45. }
  46. }