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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 DomEventObserver from '/ckeditor5/core/treeview/observer/domeventobserver.js';
- import Observer from '/ckeditor5/core/treeview/observer/observer.js';
- import TreeView from '/ckeditor5/core/treeview/treeview.js';
- class ClickObserver extends DomEventObserver {
- constructor( treeView ) {
- super( treeView );
- this.domEventType = 'click';
- }
- onDomEvent( domEvt ) {
- this.fire( 'click', 'foo', domEvt );
- }
- }
- class MultiObserver extends DomEventObserver {
- constructor( treeView ) {
- super( treeView );
- this.domEventType = [ 'evt1', 'evt2' ];
- }
- onDomEvent( domEvt ) {
- this.fire( domEvt.type );
- }
- }
- describe( 'DomEventObserver', () => {
- let treeView;
- beforeEach( () => {
- treeView = new TreeView();
- } );
- describe( 'constructor', () => {
- it( 'should create Observer with properties', () => {
- const observer = new DomEventObserver( treeView );
- expect( observer ).to.be.an.instanceof( Observer );
- } );
- } );
- it( 'should add event listener', () => {
- const domElement = document.createElement( 'p' );
- const domEvent = new MouseEvent( 'click' );
- const evtSpy = sinon.spy();
- treeView.createRoot( domElement, 'root' );
- treeView.addObserver( ClickObserver );
- treeView.on( 'click', evtSpy );
- domElement.dispatchEvent( domEvent );
- expect( evtSpy.calledOnce ).to.be.true;
- expect( evtSpy.args[ 0 ][ 1 ] ).to.equal( 'foo' );
- expect( evtSpy.args[ 0 ][ 2 ] ).to.equal( domEvent );
- } );
- it( 'should add multiple event listeners', () => {
- const domElement = document.createElement( 'p' );
- const domEvent1 = new MouseEvent( 'evt1' );
- const domEvent2 = new MouseEvent( 'evt2' );
- const evtSpy1 = sinon.spy();
- const evtSpy2 = sinon.spy();
- treeView.createRoot( domElement, 'root' );
- treeView.addObserver( MultiObserver );
- treeView.on( 'evt1', evtSpy1 );
- treeView.on( 'evt2', evtSpy2 );
- domElement.dispatchEvent( domEvent1 );
- expect( evtSpy1.calledOnce ).to.be.true;
- domElement.dispatchEvent( domEvent2 );
- expect( evtSpy2.calledOnce ).to.be.true;
- } );
- it( 'should not fire event if observer is disabled', () => {
- const domElement = document.createElement( 'p' );
- const domEvent = new MouseEvent( 'click' );
- const evtSpy = sinon.spy();
- treeView.createRoot( domElement, 'root' );
- treeView.addObserver( ClickObserver );
- treeView.on( 'click', evtSpy );
- const testObserver = Array.from( treeView._observers )[ 0 ];
- testObserver.disable();
- domElement.dispatchEvent( domEvent );
- expect( evtSpy.called ).to.be.false;
- } );
- it( 'should fire event if observer is disabled and re-enabled', () => {
- const domElement = document.createElement( 'p' );
- const domEvent = new MouseEvent( 'click' );
- const treeView = new TreeView();
- const evtSpy = sinon.spy();
- treeView.createRoot( domElement, 'root' );
- treeView.addObserver( ClickObserver );
- treeView.on( 'click', evtSpy );
- const testObserver = Array.from( treeView._observers )[ 0 ];
- testObserver.disable();
- domElement.dispatchEvent( domEvent );
- expect( evtSpy.called ).to.be.false;
- testObserver.enable();
- domElement.dispatchEvent( domEvent );
- expect( evtSpy.calledOnce ).to.be.true;
- } );
- describe( 'fire', () => {
- it( 'should do nothing if observer is disabled', () => {
- const testObserver = new ClickObserver( treeView );
- const fireSpy = sinon.spy( treeView, 'fire' );
- testObserver.disable();
- testObserver.fire( 'click' );
- expect( fireSpy.called ).to.be.false;
- testObserver.enable();
- testObserver.fire( 'click' );
- expect( fireSpy.calledOnce ).to.be.true;
- } );
- } );
- } );
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