/** * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved. * For licensing, see LICENSE.md. */ /* global document, HTMLElement */ /* bender-tags: core, ui */ 'use strict'; var modules = bender.amd.require( 'ckeditor', 'ui/view', 'ui/region', 'ckeditorerror', 'model' ); var View, TestView; var view; bender.tools.createSinonSandbox(); beforeEach( createViewInstance ); describe( 'constructor', function() { it( 'accepts the model', function() { expect( view.model ).to.be.an.instanceof( modules.model ); expect( view ).to.have.deep.property( 'model.a', 'foo' ); expect( view ).to.have.deep.property( 'model.b', 42 ); } ); } ); describe( 'instance', function() { it( 'has no default element', function() { expect( () => view.el ).to.throw( modules.ckeditorerror ); } ); it( 'has no default template', function() { expect( view.template ).to.be.undefined(); } ); it( 'has no default regions', function() { expect( view.regions ).to.have.length( 0 ); } ); } ); describe( 'bind', function() { it( 'returns a function that passes arguments', function() { var spy = bender.sinon.spy(); var callback = view.bind( 'a', spy ); expect( spy.called ).to.be.false; callback( 'el', 'updater' ); sinon.assert.calledOnce( spy ); sinon.assert.calledWithExactly( spy, 'el', 'foo' ); view.model.a = 'bar'; sinon.assert.calledTwice( spy ); expect( spy.secondCall.calledWithExactly( 'el', 'bar' ) ).to.be.true; } ); it( 'allows binding attribute to the model', function() { class TestView extends View { constructor( model ) { super( model ); this.template = { tag: 'p', attributes: { 'class': this.bind( 'foo' ) }, text: 'abc' }; } } view = new TestView( { foo: 'bar' } ); expect( view.el.outerHTML ).to.be.equal( '
' ); view.model.foo = 'baz'; expect( view.el.outerHTML ).to.be.equal( 'abc
' ); } ); it( 'allows binding "text" to the model', function() { class TestView extends View { constructor( model ) { super( model ); this.template = { tag: 'p', children: [ { tag: 'b', text: 'baz' } ], text: this.bind( 'foo' ) }; } } view = new TestView( { foo: 'bar' } ); expect( view.el.outerHTML ).to.be.equal( 'barbaz
' ); // TODO: A solution to avoid nuking the children? view.model.foo = 'qux'; expect( view.el.outerHTML ).to.be.equal( 'qux
' ); } ); it( 'allows binding to the model with value processing', function() { class TestView extends View { constructor( model ) { super( model ); var callback = ( el, value ) => ( value > 0 ? 'positive' : 'negative' ); this.template = { tag: 'p', attributes: { 'class': this.bind( 'foo', callback ) }, text: this.bind( 'foo', callback ) }; } } view = new TestView( { foo: 3 } ); expect( view.el.outerHTML ).to.be.equal( 'positive
' ); view.model.foo = -7; expect( view.el.outerHTML ).to.be.equal( 'negative
' ); } ); it( 'allows binding to the model with custom callback', function() { class TestView extends View { constructor( model ) { super( model ); this.template = { tag: 'p', attributes: { 'class': this.bind( 'foo', ( el, value ) => { el.innerHTML = value; if ( value == 'changed' ) { return value; } } ) }, text: 'bar' }; } } view = new TestView( { foo: 'moo' } ); expect( view.el.outerHTML ).to.be.equal( 'moo
' ); view.model.foo = 'changed'; expect( view.el.outerHTML ).to.be.equal( 'changed
' ); } ); } ); describe( 'render', function() { it( 'creates an element from template', function() { view = new TestView( { a: 1 } ); expect( view.el ).to.be.an.instanceof( HTMLElement ); expect( view.el.nodeName ).to.be.equal( 'A' ); } ); } ); describe( 'destroy', function() { it( 'detaches the model', function() { expect( view.model ).to.be.an.instanceof( modules.model ); view.destroy(); expect( view.model ).to.be.null; } ); it( 'detaches the element', function() { view = new TestView(); // Append the views's element to some container. var container = document.createElement( 'div' ); container.appendChild( view.el ); expect( view.el.nodeName ).to.be.equal( 'A' ); expect( view.el ).to.be.an.instanceof( HTMLElement ); expect( view.el.parentNode ).to.be.equal( container ); view.destroy(); expect( view.el ).to.be.an.instanceof( HTMLElement ); expect( view.el.parentNode ).to.be.null; } ); it( 'destroys child regions', function() { var Region = modules[ 'ui/region' ]; var region = new Region(); var spy = bender.sinon.spy( region, 'destroy' ); view.regions.add( region ); view.destroy(); expect( view.regions ).to.have.length( 0 ); expect( spy.calledOnce ).to.be.true; } ); it( 'detaches bound model listeners', function() { class TestView extends View { constructor( model ) { super( model ); this.template = { tag: 'p', text: this.bind( 'foo' ) }; } } view = new TestView( { foo: 'bar' } ); var model = view.model; expect( view.el.outerHTML ).to.be.equal( 'bar
' ); model.foo = 'baz'; expect( view.el.outerHTML ).to.be.equal( 'baz
' ); view.destroy(); model.foo = 'abc'; expect( view.el.outerHTML ).to.be.equal( 'baz
' ); } ); } ); function createViewInstance() { View = modules[ 'ui/view' ]; view = new View( { a: 'foo', b: 42 } ); class T extends View { constructor() { super(); this.template = { tag: 'a' }; } } TestView = T; }