| // Copyright 2008 The Closure Library Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS-IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| goog.provide('goog.ui.decorateTest'); |
| goog.setTestOnly('goog.ui.decorateTest'); |
| |
| goog.require('goog.testing.jsunit'); |
| goog.require('goog.ui.decorate'); |
| goog.require('goog.ui.registry'); |
| // Fake component and renderer implementations, for testing only. |
| |
| // UnknownComponent has no default renderer or decorator registered. |
| function UnknownComponent() { |
| } |
| |
| // FakeComponentX's default renderer is FakeRenderer. It also has a |
| // decorator. |
| function FakeComponentX() { |
| this.element = null; |
| } |
| |
| FakeComponentX.prototype.decorate = function(element) { |
| this.element = element; |
| }; |
| |
| // FakeComponentY doesn't have an explicitly registered default |
| // renderer; it should inherit the default renderer from its superclass. |
| // It does have a decorator registered. |
| function FakeComponentY() { |
| FakeComponentX.call(this); |
| } |
| goog.inherits(FakeComponentY, FakeComponentX); |
| |
| // FakeComponentZ is just another component. Its default renderer is |
| // FakeSingletonRenderer, but it has no decorator registered. |
| function FakeComponentZ() { |
| } |
| |
| // FakeRenderer is a stateful renderer. |
| function FakeRenderer() { |
| } |
| |
| // FakeSingletonRenderer is a stateless renderer that can be used as a |
| // singleton. |
| function FakeSingletonRenderer() { |
| } |
| |
| FakeSingletonRenderer.instance_ = new FakeSingletonRenderer(); |
| |
| FakeSingletonRenderer.getInstance = function() { |
| return FakeSingletonRenderer.instance_; |
| }; |
| |
| function setUp() { |
| goog.ui.registry.setDefaultRenderer(FakeComponentX, FakeRenderer); |
| goog.ui.registry.setDefaultRenderer(FakeComponentZ, |
| FakeSingletonRenderer); |
| |
| goog.ui.registry.setDecoratorByClassName('fake-component-x', |
| function() { |
| return new FakeComponentX(); |
| }); |
| goog.ui.registry.setDecoratorByClassName('fake-component-y', |
| function() { |
| return new FakeComponentY(); |
| }); |
| } |
| |
| function tearDown() { |
| goog.ui.registry.reset(); |
| } |
| |
| function testDecorate() { |
| var dx = goog.ui.decorate(document.getElementById('x')); |
| assertTrue('Decorator for element with fake-component-x class must be ' + |
| 'a FakeComponentX', dx instanceof FakeComponentX); |
| assertEquals('Element x must have been decorated', |
| document.getElementById('x'), dx.element); |
| |
| var dy = goog.ui.decorate(document.getElementById('y')); |
| assertTrue('Decorator for element with fake-component-y class must be ' + |
| 'a FakeComponentY', dy instanceof FakeComponentY); |
| assertEquals('Element y must have been decorated', |
| document.getElementById('y'), dy.element); |
| |
| var dz = goog.ui.decorate(document.getElementById('z')); |
| assertNull('Decorator for element with unknown class must be null', dz); |
| |
| var du = goog.ui.decorate(document.getElementById('u')); |
| assertNull('Decorator for element without CSS class must be null', du); |
| } |