/** * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved. * For licensing, see LICENSE.md. */ /* globals document */ import DeleteObserver from '../src/deleteobserver'; import ViewDocument from '@ckeditor/ckeditor5-engine/src/view/document'; import DomEventData from '@ckeditor/ckeditor5-engine/src/view/observer/domeventdata'; import createViewRoot from '@ckeditor/ckeditor5-engine/tests/view/_utils/createroot'; import { getCode } from '@ckeditor/ckeditor5-utils/src/keyboard'; describe( 'DeleteObserver', () => { let viewDocument; beforeEach( () => { viewDocument = new ViewDocument(); viewDocument.addObserver( DeleteObserver ); } ); // See ckeditor/ckeditor5-enter#10. it( 'can be initialized', () => { expect( () => { createViewRoot( viewDocument ); viewDocument.attachDomRoot( document.createElement( 'div' ) ); } ).to.not.throw(); } ); describe( 'delete event', () => { it( 'is fired on keydown', () => { const spy = sinon.spy(); viewDocument.on( 'delete', spy ); viewDocument.fire( 'keydown', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'delete' ) } ) ); expect( spy.calledOnce ).to.be.true; const data = spy.args[ 0 ][ 1 ]; expect( data ).to.have.property( 'direction', 'forward' ); expect( data ).to.have.property( 'unit', 'character' ); expect( data ).to.have.property( 'sequence', 1 ); } ); it( 'is fired with a proper direction and unit', () => { const spy = sinon.spy(); viewDocument.on( 'delete', spy ); viewDocument.fire( 'keydown', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'backspace' ), altKey: true } ) ); expect( spy.calledOnce ).to.be.true; const data = spy.args[ 0 ][ 1 ]; expect( data ).to.have.property( 'direction', 'backward' ); expect( data ).to.have.property( 'unit', 'word' ); expect( data ).to.have.property( 'sequence', 1 ); } ); it( 'is not fired on keydown when keyCode does not match backspace or delete', () => { const spy = sinon.spy(); viewDocument.on( 'delete', spy ); viewDocument.fire( 'keydown', new DomEventData( viewDocument, getDomEvent(), { keyCode: 1 } ) ); expect( spy.calledOnce ).to.be.false; } ); it( 'is fired with a proper sequence number', () => { const spy = sinon.spy(); viewDocument.on( 'delete', spy ); // Simulate that a user keeps the "Delete" key. for ( let i = 0; i < 5; ++i ) { viewDocument.fire( 'keydown', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'delete' ) } ) ); } expect( spy.callCount ).to.equal( 5 ); expect( spy.args[ 0 ][ 1 ] ).to.have.property( 'sequence', 1 ); expect( spy.args[ 1 ][ 1 ] ).to.have.property( 'sequence', 2 ); expect( spy.args[ 2 ][ 1 ] ).to.have.property( 'sequence', 3 ); expect( spy.args[ 3 ][ 1 ] ).to.have.property( 'sequence', 4 ); expect( spy.args[ 4 ][ 1 ] ).to.have.property( 'sequence', 5 ); } ); it( 'clears the sequence when the key was released', () => { const spy = sinon.spy(); viewDocument.on( 'delete', spy ); // Simulate that a user keeps the "Delete" key. for ( let i = 0; i < 3; ++i ) { viewDocument.fire( 'keydown', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'delete' ) } ) ); } // Then the user has released the key. viewDocument.fire( 'keyup', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'delete' ) } ) ); // And pressed it once again. viewDocument.fire( 'keydown', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'delete' ) } ) ); expect( spy.callCount ).to.equal( 4 ); expect( spy.args[ 0 ][ 1 ] ).to.have.property( 'sequence', 1 ); expect( spy.args[ 1 ][ 1 ] ).to.have.property( 'sequence', 2 ); expect( spy.args[ 2 ][ 1 ] ).to.have.property( 'sequence', 3 ); expect( spy.args[ 3 ][ 1 ] ).to.have.property( 'sequence', 1 ); } ); it( 'works fine with Backspace key', () => { const spy = sinon.spy(); viewDocument.on( 'delete', spy ); viewDocument.fire( 'keydown', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'backspace' ) } ) ); viewDocument.fire( 'keyup', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'backspace' ) } ) ); viewDocument.fire( 'keydown', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'backspace' ) } ) ); expect( spy.callCount ).to.equal( 2 ); expect( spy.args[ 0 ][ 1 ] ).to.have.property( 'sequence', 1 ); expect( spy.args[ 1 ][ 1 ] ).to.have.property( 'sequence', 1 ); } ); it( 'does not reset the sequence if other than Backspace or Delete key was released', () => { const spy = sinon.spy(); viewDocument.on( 'delete', spy ); viewDocument.fire( 'keydown', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'delete' ) } ) ); viewDocument.fire( 'keyup', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'A' ) } ) ); viewDocument.fire( 'keydown', new DomEventData( viewDocument, getDomEvent(), { keyCode: getCode( 'delete' ) } ) ); expect( spy.args[ 0 ][ 1 ] ).to.have.property( 'sequence', 1 ); expect( spy.args[ 1 ][ 1 ] ).to.have.property( 'sequence', 2 ); } ); } ); function getDomEvent() { return { preventDefault: sinon.spy() }; } } );