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- /**
- * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- /* bender-tags: treeview */
- 'use strict';
- import TreeView from '/ckeditor5/engine/treeview/treeview.js';
- import Observer from '/ckeditor5/engine/treeview/observer/observer.js';
- import Renderer from '/ckeditor5/engine/treeview/renderer.js';
- import Writer from '/ckeditor5/engine/treeview/writer.js';
- import DomConverter from '/ckeditor5/engine/treeview/domconverter.js';
- import count from '/ckeditor5/utils/count.js';
- describe( 'TreeView', () => {
- describe( 'constructor', () => {
- it( 'should create TreeView with all properties', () => {
- const treeView = new TreeView();
- expect( count( treeView.domRoots ) ).to.equal( 0 );
- expect( count( treeView.viewRoots ) ).to.equal( 0 );
- expect( count( treeView._observers ) ).to.equal( 0 );
- expect( treeView ).to.have.property( 'renderer' ).that.is.instanceOf( Renderer );
- expect( treeView ).to.have.property( 'writer' ).that.is.instanceOf( Writer );
- expect( treeView ).to.have.property( 'domConverter' ).that.is.instanceOf( DomConverter );
- } );
- } );
- describe( 'createRoot', () => {
- it( 'should create root', () => {
- const domP = document.createElement( 'p' );
- const domDiv = document.createElement( 'div' );
- domDiv.setAttribute( 'id', 'editor' );
- domDiv.appendChild( domP );
- const treeView = new TreeView();
- const ret = treeView.createRoot( domDiv, 'editor' );
- expect( count( treeView.domRoots ) ).to.equal( 1 );
- expect( count( treeView.viewRoots ) ).to.equal( 1 );
- const domRoot = treeView.domRoots.get( 'editor' );
- const viewRoot = treeView.viewRoots.get( 'editor' );
- expect( ret ).to.equal( viewRoot );
- expect( domRoot ).to.equal( domDiv );
- expect( treeView.domConverter.getCorrespondingDom( viewRoot ) ).to.equal( domDiv );
- expect( viewRoot.name ).to.equal( 'div' );
- expect( viewRoot.getAttribute( 'id' ) ).to.equal( 'editor' );
- expect( treeView.renderer.markedChildren.has( viewRoot ) ).to.be.true;
- } );
- } );
- describe( 'addObserver', () => {
- let ObserverMock, treeView;
- beforeEach( () => {
- ObserverMock = class extends Observer {
- constructor( treeView ) {
- super( treeView );
- this.enable = sinon.spy();
- this.disable = sinon.spy();
- }
- };
- treeView = new TreeView( document.createElement( 'div' ) );
- treeView.renderer.render = sinon.spy();
- } );
- it( 'should be instantiated and enabled on adding', () => {
- treeView.addObserver( ObserverMock );
- expect( treeView._observers.size ).to.equal( 1 );
- const observerMock = Array.from( treeView._observers )[ 0 ];
- expect( observerMock ).to.have.property( 'treeView', treeView );
- sinon.assert.calledOnce( observerMock.enable );
- } );
- it( 'should instantiate one observer only once', () => {
- let instantiated = 0;
- let enabled = 0;
- class ObserverMock2 extends Observer {
- constructor( treeView ) {
- super( treeView );
- instantiated++;
- }
- enable() {
- enabled++;
- }
- }
- treeView.addObserver( ObserverMock2 );
- treeView.addObserver( ObserverMock2 );
- expect( treeView._observers.size ).to.equal( 1 );
- expect( instantiated ).to.equal( 1 );
- expect( enabled ).to.equal( 1 );
- treeView.addObserver( ObserverMock );
- expect( treeView._observers.size ).to.equal( 2 );
- } );
- it( 'should instantiate child class of already registered observer', () => {
- class ObserverMock extends Observer {
- enable() {}
- }
- class ChildObserverMock extends ObserverMock {
- enable() {}
- }
- treeView.addObserver( ObserverMock );
- treeView.addObserver( ChildObserverMock );
- expect( treeView._observers.size ).to.equal( 2 );
- } );
- it( 'should be disabled and re-enabled on render', () => {
- treeView.addObserver( ObserverMock );
- treeView.render();
- const observerMock = Array.from( treeView._observers )[ 0 ];
- sinon.assert.calledOnce( observerMock.disable );
- sinon.assert.calledOnce( treeView.renderer.render );
- sinon.assert.calledTwice( observerMock.enable );
- } );
- } );
- } );
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