treeview.js 1.1 KB

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  1. /**
  2. * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md.
  4. */
  5. 'use strict';
  6. import objectUtils from '../lib/lodash/object.js';
  7. import EmitterMixin from '../emittermixin.js';
  8. import RootElement from './rootelement.js';
  9. import Renderer from './renderer.js';
  10. export default class TreeView {
  11. constructor( domElement ) {
  12. /**
  13. * Root of the DOM.
  14. */
  15. this.domRoot = domElement;
  16. this.observers = new Set();
  17. this.renderer = new Renderer( this );
  18. /**
  19. * Root of the view
  20. */
  21. this.viewRoot = new RootElement( domElement.name, this );
  22. this.viewRoot.cloneDomAttrs( domElement );
  23. this.viewRoot.bindDomElement( domElement );
  24. this.viewRoot.markToSync( 'CHILDREN_NEED_UPDATE' );
  25. }
  26. addObserver( observer ) {
  27. this.observers.add( observer );
  28. observer.init( this );
  29. observer.attach();
  30. }
  31. render() {
  32. for ( let observer of this.observers ) {
  33. observer.detach();
  34. }
  35. this.renderer.render();
  36. for ( let observer of this.observers ) {
  37. observer.attach();
  38. }
  39. }
  40. }
  41. objectUtils.extend( TreeView.prototype, EmitterMixin );