/*
* ProgressPanel.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.widget;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Widget;
import org.rstudio.core.client.theme.res.ThemeStyles;
import org.rstudio.core.client.widget.images.ProgressImages;
public class ProgressPanel extends Composite
{
public ProgressPanel()
{
this(ProgressImages.createLarge());
}
public ProgressPanel(Widget progressImage)
{
this(progressImage, 100);
}
public ProgressPanel(Widget progressImage, int verticalOffset)
{
progressImage_ = progressImage;
progressSpinner_ = new ProgressSpinner(getSpinnerColor());
progressSpinner_.getElement().getStyle().setWidth(32, Unit.PX);
progressSpinner_.getElement().getStyle().setHeight(32, Unit.PX);
HorizontalCenterPanel progressPanel = new HorizontalCenterPanel(
progressSpinner_.isSupported() ? progressSpinner_ : progressImage_,
verticalOffset);
progressImage_.setVisible(false);
progressSpinner_.setVisible(false);
progressPanel.setSize("100%", "100%");
progressPanel.addStyleName(ThemeStyles.INSTANCE.progressPanel());
progressPanel.addStyleName("ace_editor_theme");
initWidget(progressPanel);
}
public void beginProgressOperation(int delayMs)
{
clearTimer();
progressSpinner_.setColorType(getSpinnerColor());
progressSpinner_.setVisible(false);
progressImage_.setVisible(false);
timer_ = new Timer() {
public void run() {
if (timer_ != this)
return; // This should never happen, but, just in case
progressImage_.setVisible(true);
progressSpinner_.setVisible(true);
}
};
timer_.schedule(delayMs);
}
public void endProgressOperation()
{
clearTimer();
progressImage_.setVisible(false);
progressSpinner_.setVisible(true);
}
private int getSpinnerColor()
{
boolean isDark = Document.get().getBody().hasClassName("editor_dark") &&
Document.get().getBody().hasClassName("rstudio-themes-flat");
return isDark ? ProgressSpinner.COLOR_WHITE : ProgressSpinner.COLOR_BLACK;
}
private void clearTimer()
{
if (timer_ != null)
{
timer_.cancel();
timer_ = null;
}
}
private final Widget progressImage_ ;
private final ProgressSpinner progressSpinner_;
private Timer timer_;
}