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- /**
- * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- /* globals MouseEvent, document */
- import DomEventObserver from '../../../src/view/observer/domeventobserver';
- import Observer from '../../../src/view/observer/observer';
- import ViewDocument from '../../../src/view/document';
- class ClickObserver extends DomEventObserver {
- constructor( document ) {
- super( document );
- this.domEventType = 'click';
- }
- onDomEvent( domEvt ) {
- this.fire( 'click', domEvt, { foo: 1, bar: 2 } );
- }
- }
- class MultiObserver extends DomEventObserver {
- constructor( document ) {
- super( document );
- this.domEventType = [ 'evt1', 'evt2' ];
- }
- onDomEvent( domEvt ) {
- this.fire( domEvt.type, domEvt );
- }
- }
- class ClickCapturingObserver extends ClickObserver {
- constructor( document ) {
- super( document );
- this.useCapture = true;
- }
- }
- describe( 'DomEventObserver', () => {
- let viewDocument;
- beforeEach( () => {
- viewDocument = new ViewDocument();
- } );
- afterEach( () => {
- viewDocument.destroy();
- } );
- describe( 'constructor()', () => {
- it( 'should create Observer with properties', () => {
- const observer = new DomEventObserver( viewDocument );
- 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();
- viewDocument.createRoot( domElement, 'root' );
- viewDocument.addObserver( ClickObserver );
- viewDocument.on( 'click', evtSpy );
- domElement.dispatchEvent( domEvent );
- expect( evtSpy.calledOnce ).to.be.true;
- const data = evtSpy.args[ 0 ][ 1 ];
- expect( data ).to.have.property( 'foo', 1 );
- expect( data ).to.have.property( 'bar', 2 );
- expect( data ).to.have.property( 'domEvent', 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();
- viewDocument.createRoot( domElement, 'root' );
- viewDocument.addObserver( MultiObserver );
- viewDocument.on( 'evt1', evtSpy1 );
- viewDocument.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();
- viewDocument.createRoot( domElement, 'root' );
- const testObserver = viewDocument.addObserver( ClickObserver );
- viewDocument.on( 'click', evtSpy );
- 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 evtSpy = sinon.spy();
- viewDocument.createRoot( domElement, 'root' );
- const testObserver = viewDocument.addObserver( ClickObserver );
- viewDocument.on( 'click', evtSpy );
- testObserver.disable();
- domElement.dispatchEvent( domEvent );
- expect( evtSpy.called ).to.be.false;
- testObserver.enable();
- domElement.dispatchEvent( domEvent );
- expect( evtSpy.calledOnce ).to.be.true;
- } );
- it( 'should allow to listen events on capturing phase', ( done ) => {
- const domElement = document.createElement( 'div' );
- const childDomElement = document.createElement( 'p' );
- const domEvent = new MouseEvent( 'click' );
- domElement.appendChild( childDomElement );
- viewDocument.createRoot( domElement, 'root' );
- viewDocument.addObserver( ClickCapturingObserver );
- viewDocument.on( 'click', ( evt, domEventData ) => {
- expect( domEventData.domEvent.eventPhase ).to.equal( domEventData.domEvent.CAPTURING_PHASE );
- done();
- } );
- childDomElement.dispatchEvent( domEvent );
- } );
- describe( 'fire', () => {
- it( 'should do nothing if observer is disabled', () => {
- const testObserver = new ClickObserver( viewDocument );
- const fireSpy = sinon.spy( viewDocument, '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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