/*
* Copyright 2014 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.core.client.css.transition;
import org.cruxframework.crux.core.client.css.transition.Transition.Callback;
import org.cruxframework.crux.core.client.css.transition.Transition.TransitionHandler;
import com.google.gwt.dom.client.Element;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.Widget;
/**
* @author Thiago da Rosa de Bustamante
*
*/
public abstract class BaseTransitionHandler implements TransitionHandler
{
public void translateX(Widget widget, int diff, Callback callback)
{
if(widget == null)
{
return;
}
Element element = widget.getElement();
if (callback != null)
{
addCallbackHandler(element, 0, callback);
}
translateX(element, diff);
}
public void resetTransition(Widget widget)
{
if(widget == null)
{
return;
}
resetTransition(widget.getElement());
}
public void translateX(Widget widget, int diff, int duration, Callback callback)
{
if(widget == null)
{
return;
}
Element element = widget.getElement();
if (callback != null)
{
addCallbackHandler(element, duration, callback);
}
translateX(element, diff, duration);
}
public void setHeight(Widget widget, int height, int duration, Callback callback)
{
if(widget == null)
{
return;
}
setHeight(widget, height+"px", duration, callback);
}
public void setHeight(Widget widget, String height, int duration, final Callback callback)
{
if(widget == null)
{
return;
}
final Element element = widget.getElement();
addCallbackHandler(element, duration, new Callback()
{
@Override
public void onTransitionCompleted()
{
clearTransitionProperties(element);
if (callback != null)
{
callback.onTransitionCompleted();
}
}
});
setHeight(element, height, duration);
}
public void hideBackface(Widget widget)
{
if(widget == null)
{
return;
}
widget.getElement().getStyle().setProperty("webkitBackfaceVisibility", "hidden");
}
public void fade(Widget outWidget, Widget inWidget, int duration, final Callback callback)
{
if(inWidget == null || outWidget == null)
{
return;
}
final Element outElement = outWidget.getElement();
final Element inElement = inWidget.getElement();
addCallbackHandler(outElement, duration, new Callback()
{
@Override
public void onTransitionCompleted()
{
clearTransitionProperties(outElement);
}
});
addCallbackHandler(inElement, duration, new Callback()
{
@Override
public void onTransitionCompleted()
{
clearTransitionProperties(inElement);
if (callback != null)
{
callback.onTransitionCompleted();
}
}
});
fadeOut(outElement, (duration/2.0));
fadeIn(inElement, (duration/2.0), (duration/2.0));
}
public void fadeOut(Widget outWidget, int duration, final Callback callback)
{
if(outWidget == null)
{
return;
}
final Element outElement = outWidget.getElement();
addCallbackHandler(outElement, duration, new Callback()
{
@Override
public void onTransitionCompleted()
{
clearTransitionProperties(outElement);
if (callback != null)
{
callback.onTransitionCompleted();
}
}
});
fadeOut(outElement, duration);
}
public void fadeIn(Widget inWidget, int duration, final Callback callback)
{
if(inWidget == null)
{
return;
}
final Element inElement = inWidget.getElement();
addCallbackHandler(inElement, duration, new Callback()
{
@Override
public void onTransitionCompleted()
{
clearTransitionProperties(inElement);
if (callback != null)
{
callback.onTransitionCompleted();
}
}
});
fadeIn(inElement, duration, 0);
}
public void clearFadeTransitions(Widget widget)
{
if(widget == null)
{
return;
}
widget.getElement().getStyle().setOpacity(1);
}
protected void addCallbackHandler(Element element, int duration, final Callback callback)
{
if (callback != null)
{
if (duration <= 0)
{
callback.onTransitionCompleted();
}
else
{
new Timer()
{
@Override
public void run()
{
callback.onTransitionCompleted();
}
}.schedule(duration + 10);
}
}
}
protected abstract void translateX(Element element, int diff);
protected abstract void setHeight(Element element, String height, int duration);
protected abstract void translateX(Element element, int diff, int duration);
protected abstract void resetTransition(Element element);
protected abstract void clearTransitionProperties(Element element);
protected abstract void fadeIn(Element inElement, double d, double e);
protected abstract void fadeOut(Element outElement, double d);
}