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- /**
- * @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()
- };
- }
- } );
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