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- /**
- * @license Copyright (c) 2003-2018, 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 View from '../../../src/view/view';
- import UIElement from '../../../src/view/uielement';
- import createViewRoot from '../_utils/createroot';
- class ClickObserver extends DomEventObserver {
- constructor( view ) {
- super( view );
- this.domEventType = 'click';
- }
- onDomEvent( domEvt ) {
- this.fire( 'click', domEvt, { foo: 1, bar: 2 } );
- }
- }
- class MultiObserver extends DomEventObserver {
- constructor( view ) {
- super( view );
- this.domEventType = [ 'evt1', 'evt2' ];
- }
- onDomEvent( domEvt ) {
- this.fire( domEvt.type, domEvt );
- }
- }
- class ClickCapturingObserver extends ClickObserver {
- constructor( view ) {
- super( view );
- this.useCapture = true;
- }
- }
- describe( 'DomEventObserver', () => {
- let view, viewDocument;
- beforeEach( () => {
- view = new View();
- viewDocument = view.document;
- } );
- afterEach( () => {
- view.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();
- createViewRoot( viewDocument );
- view.attachDomRoot( domElement );
- view.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();
- createViewRoot( viewDocument );
- view.attachDomRoot( domElement );
- view.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();
- createViewRoot( viewDocument );
- view.attachDomRoot( domElement );
- const testObserver = view.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();
- createViewRoot( viewDocument );
- view.attachDomRoot( domElement );
- const testObserver = view.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 );
- createViewRoot( viewDocument );
- view.attachDomRoot( domElement );
- view.addObserver( ClickCapturingObserver );
- viewDocument.on( 'click', ( evt, domEventData ) => {
- expect( domEventData.domEvent.eventPhase ).to.equal( domEventData.domEvent.CAPTURING_PHASE );
- done();
- } );
- childDomElement.dispatchEvent( domEvent );
- } );
- describe( 'integration with UIElement', () => {
- let domRoot, domEvent, evtSpy, uiElement;
- function createUIElement( name ) {
- const element = new UIElement( name );
- element.render = function( domDocument ) {
- const root = this.toDomElement( domDocument );
- root.innerHTML = '<span>foo bar</span>';
- return root;
- };
- return element;
- }
- beforeEach( () => {
- domRoot = document.createElement( 'div' );
- const viewRoot = createViewRoot( viewDocument );
- view.attachDomRoot( domRoot );
- uiElement = createUIElement( 'p' );
- viewRoot.appendChildren( uiElement );
- view.render();
- domEvent = new MouseEvent( 'click', { bubbles: true } );
- evtSpy = sinon.spy();
- view.addObserver( ClickObserver );
- viewDocument.on( 'click', evtSpy );
- } );
- it( 'should fire events from UIElement itself', () => {
- const domUiElement = domRoot.querySelector( 'p' );
- domUiElement.dispatchEvent( domEvent );
- const data = evtSpy.args[ 0 ][ 1 ];
- sinon.assert.calledOnce( evtSpy );
- expect( data.target ).to.equal( uiElement );
- } );
- it( 'events from inside of UIElement should target UIElement', () => {
- const domUiElementChild = domRoot.querySelector( 'span' );
- domUiElementChild.dispatchEvent( domEvent );
- const data = evtSpy.args[ 0 ][ 1 ];
- sinon.assert.calledOnce( evtSpy );
- expect( data.target ).to.equal( uiElement );
- } );
- } );
- describe( 'fire', () => {
- it( 'should do nothing if observer is disabled', () => {
- const testObserver = new ClickObserver( view );
- 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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