/*
* Copyright 2011 cruxframework.org.
*
* 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.
*/
package org.cruxframework.crux.gwt.rebind;
import org.cruxframework.crux.core.rebind.AbstractProxyCreator.SourcePrinter;
import org.cruxframework.crux.core.rebind.CruxGeneratorException;
import org.cruxframework.crux.core.rebind.screen.widget.AttributeProcessor;
import org.cruxframework.crux.core.rebind.screen.widget.WidgetCreator;
import org.cruxframework.crux.core.rebind.screen.widget.WidgetCreatorContext;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.DeclarativeFactory;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagAttribute;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagAttributes;
import com.google.gwt.dom.client.MediaElement;
import com.google.gwt.media.client.Audio;
/**
* Factory for Audio Widgets
* @author Thiago da Rosa de Bustamante
*/
@DeclarativeFactory(id="audio", library="gwt", targetWidget=Audio.class)
@TagAttributes({
@TagAttribute(value="autoplay", type=Boolean.class, property="audioElement.autoplay"),
@TagAttribute(value="showControls", type=Boolean.class, property="audioElement.controls"),
@TagAttribute(value="currentTime", type=Double.class, property="audioElement.currentTime"),
@TagAttribute(value="defaultPlaybackRate", type=Double.class, property="audioElement.defaultPlaybackRate"),
@TagAttribute(value="loop", type=Boolean.class, property="audioElement.loop"),
@TagAttribute(value="muted", type=Boolean.class, property="audioElement.muted"),
@TagAttribute(value="playbackRate", type=Double.class, property="audioElement.playbackRate"),
@TagAttribute(value="preload", type=AudioFactory.PreLoadType.class, processor=AudioFactory.PreLoadAttributeProcessor.class),
@TagAttribute(value="src", type=String.class, property="audioElement.src", supportsResources=true),
@TagAttribute(value="volume", type=Double.class, property="audioElement.volume")
})
public class AudioFactory extends FocusWidgetFactory<WidgetCreatorContext>
{
/**
* @author Thiago da Rosa de Bustamante
*
*/
public static enum PreLoadType{auto, metadata, none}
/**
* @author Thiago da Rosa de Bustamante
*
*/
public static class PreLoadAttributeProcessor extends AttributeProcessor<WidgetCreatorContext>
{
public PreLoadAttributeProcessor(WidgetCreator<?> widgetCreator)
{
super(widgetCreator);
}
@Override
public void processAttribute(SourcePrinter out, WidgetCreatorContext context, String attributeValue)
{
PreLoadType preLoadType = PreLoadType.valueOf(attributeValue);
String mediaElementClass = MediaElement.class.getCanonicalName();
switch (preLoadType)
{
case auto: out.println(context.getWidget()+".getAudioElement().setPreload("+mediaElementClass+".PRELOAD_AUTO);"); break;
case metadata: out.println(context.getWidget()+".getAudioElement().setPreload("+mediaElementClass+".PRELOAD_METADATA);"); break;
case none: out.println(context.getWidget()+".getAudioElement().setPreload("+mediaElementClass+".PRELOAD_NONE);"); break;
}
}
}
@Override
public WidgetCreatorContext instantiateContext()
{
return new WidgetCreatorContext();
}
@Override
public void instantiateWidget(SourcePrinter out, WidgetCreatorContext context) throws CruxGeneratorException
{
String className = getWidgetClassName();
out.println("final "+className + " " + context.getWidget()+" = "+className+".createIfSupported();");
}
}