| //////////////////////////////////////////////////////////////////////////////// |
| // |
| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You 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. |
| // |
| //////////////////////////////////////////////////////////////////////////////// |
| package org.apache.royale.core |
| { |
| import org.apache.royale.events.IEventDispatcher; |
| import org.apache.royale.events.Event; |
| import org.apache.royale.events.ValueChangeEvent; |
| import org.apache.royale.events.StyleChangeEvent; |
| import org.apache.royale.core.IBead; |
| import org.apache.royale.core.IStrand; |
| import org.apache.royale.core.IStyleableObject; |
| |
| /** |
| * The StyleChangeNotifier can be added to the bead list of any UI component |
| * that needs to react to dynamic changes to its styles. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10.2 |
| * @playerversion AIR 2.6 |
| * @productversion Royale 0.0 |
| */ |
| public class StyleChangeNotifier extends BeadBase |
| { |
| private var _strand:IStrand; |
| |
| /** |
| * @copy org.apache.royale.core.IBead#strand |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10.2 |
| * @playerversion AIR 2.6 |
| * @productversion Royale 0.9 |
| * @royaleignorecoercion org.apache.royale.core.IStyleableObject |
| * @royaleignorecoercion org.apache.royale.events.IEventDispatcher |
| */ |
| override public function set strand(value:IStrand):void |
| { |
| _strand = value; |
| |
| var style:IEventDispatcher = IStyleableObject(value).style as IEventDispatcher; |
| if (style) { |
| style.addEventListener(ValueChangeEvent.VALUE_CHANGE, handleStyleChange); |
| } |
| } |
| |
| /** |
| * @private |
| * @royaleignorecoercion org.apache.royale.core.WrappedHTMLElement |
| * @royaleignorecoercion org.apache.royale.core.UIHTMLElementWrapper |
| */ |
| private function handleStyleChange(event:ValueChangeEvent):void |
| { |
| COMPILE::SWF { |
| var styleEvent:StyleChangeEvent = StyleChangeEvent.createChangeEvent(_strand, event.propertyName, event.oldValue, event.newValue); |
| IEventDispatcher(_strand).dispatchEvent(styleEvent); |
| } |
| COMPILE::JS { |
| var host:UIHTMLElementWrapper = UIHTMLElementWrapper(_strand); |
| if (host) { |
| var element:WrappedHTMLElement = host.element as WrappedHTMLElement; |
| if (element) { |
| element.style[event.propertyName] = event.newValue; |
| } |
| } |
| } |
| } |
| } |
| } |