/*
* FadeInAnimation.java
*
* Copyright (C) 2009-12 by RStudio, Inc.
*
* Unless you have received this program directly from RStudio pursuant
* to the terms of a commercial license agreement with RStudio, then
* this program is licensed to you under the terms of version 3 of the
* GNU Affero General Public License. This program is distributed WITHOUT
* ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
* AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
*
*/
package org.rstudio.core.client.layout;
import com.google.gwt.animation.client.Animation;
import com.google.gwt.dom.client.Style;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.ui.Widget;
import java.util.ArrayList;
public class FadeInAnimation extends Animation
{
public FadeInAnimation(Widget widget,
double targetOpacity,
Command callback)
{
this(new ArrayList<Widget>(), targetOpacity, callback);
widgets_.add(widget);
}
public FadeInAnimation(ArrayList<Widget> widgets,
double targetOpacity,
Command callback)
{
this.widgets_ = widgets;
targetOpacity_ = targetOpacity;
callback_ = callback;
}
@Override
protected void onStart()
{
for (Widget w : widgets_)
w.getElement().getStyle().setDisplay(Style.Display.BLOCK);
super.onStart();
}
@Override
protected void onUpdate(double progress)
{
for (Widget w : widgets_)
w.getElement().getStyle().setOpacity(targetOpacity_ * progress);
}
@Override
protected void onComplete()
{
for (Widget w : widgets_)
{
w.getElement().getStyle().setOpacity(targetOpacity_);
}
if (callback_ != null)
callback_.execute();
}
private ArrayList<Widget> widgets_;
private final double targetOpacity_;
private final Command callback_;
}