/*
* Copyright 2008-2009 GWT Mosaic Georgopoulos J. Georgios.
*
* 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.gwt.mosaic.ui.client;
import java.util.ArrayList;
import java.util.List;
import org.gwt.mosaic.core.client.DOM;
import org.gwt.mosaic.core.client.util.DelayedRunnable;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.WindowResizeListener;
import com.google.gwt.user.client.ui.DecoratedPopupPanel;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HasText;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.PopupListener;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.widgetideas.client.GlassPanel;
/**
* Displays information in the bottom region of the browser for a specified
* amount of time.
*
* @author georgopoulos.georgios(at)gmail.com
*
*/
public class InfoPanel extends DecoratedPopupPanel implements HasText,
WindowResizeListener, PopupListener {
public enum InfoPanelType {
HUMANIZED_MESSAGE, TRAY_NOTIFICATION
}
/**
* The default style name.
*/
private static final String DEFAULT_STYLENAME = "mosaic-InfoPanel";
public static final int DEFAULT_DELAY = 3333; // microseconds
public static final int WIDTH = 224;
public static final int HEIGHT = 72;
private static final List<InfoPanel> SLOTS = new ArrayList<InfoPanel>();
private static int firstAvail() {
int size = SLOTS.size();
for (int i = 0; i < size; i++) {
if (SLOTS.get(i) == null) {
return i;
}
}
return size;
}
private static void show(final InfoPanel infoPanel, final int delayMsec,
final int level) {
final int cw = Window.getClientWidth();
final int ch = Window.getClientHeight();
final int left = (cw - WIDTH - 20);
final int top = ch - HEIGHT - 20 - (level * (HEIGHT + 20));
if (top < 0) {
new DelayedRunnable() {
public void run() {
InfoPanel.SLOTS.set(level, null);
InfoPanel.show(infoPanel.caption.getText(),
infoPanel.description.getText());
}
};
} else {
infoPanel.setPopupPosition(left, top);
infoPanel.show();
infoPanel.hideTimer.scheduleRepeating(delayMsec);
}
}
public static void show(InfoPanelType type, String caption, String text,
String... values) {
if (type == InfoPanelType.TRAY_NOTIFICATION) {
show(caption, text, values);
} else {
// if (text != null && values != null) text = Format.substitute(text,
// values);
final InfoPanel infoPanel = new InfoPanel(caption, text, true);
if (infoPanel.glassPanel == null) {
infoPanel.glassPanel = new GlassPanel(false);
infoPanel.glassPanel.addStyleName("mosaic-GlassPanel-default");
DOM.setStyleAttribute(infoPanel.glassPanel.getElement(), "zIndex",
DOM.getStyleAttribute(infoPanel.getElement(), "zIndex"));
}
RootPanel.get().add(infoPanel.glassPanel, 0, 0);
infoPanel.center();
infoPanel.addPopupListener(infoPanel);
}
}
private GlassPanel glassPanel;
public static void show(String caption, String text, String... values) {
final int avail = firstAvail();
// if (text != null && values != null) text = Format.substitute(text,
// values);
InfoPanel infoPanel = new InfoPanel(caption, text);
infoPanel.addPopupListener(new PopupListener() {
public void onPopupClosed(PopupPanel sender, boolean autoClosed) {
SLOTS.set(avail, null);
}
});
SLOTS.add(avail, infoPanel);
show(infoPanel, DEFAULT_DELAY, avail);
}
private Label caption, description;
private final Timer hideTimer = new Timer() {
public void run() {
InfoPanel.this.hide();
}
};
public InfoPanel() {
this(null);
}
protected InfoPanel(String caption) {
this(caption, null);
}
protected InfoPanel(String caption, String description) {
this(caption, description, false);
}
protected InfoPanel(String caption, String description, final boolean autoHide) {
super(autoHide, false); // modal=false
ensureDebugId("mosaicInfoPanel-simplePopup");
setAnimationEnabled(true);
this.caption = new Label(caption);
this.caption.setStyleName(DEFAULT_STYLENAME + "-caption");
this.description = new Label(description);
this.description.setStyleName(DEFAULT_STYLENAME + "-description");
final FlowPanel panel = new FlowPanel();
panel.setStyleName(DEFAULT_STYLENAME + "-panel");
if (autoHide) {
final int width = Window.getClientWidth();
panel.setPixelSize(Math.max(width / 3, WIDTH), HEIGHT);
Window.addWindowResizeListener(this);
} else {
panel.setPixelSize(WIDTH, HEIGHT);
}
DOM.setStyleAttribute(panel.getElement(), "overflow", "hidden");
SimplePanel div1 = new SimplePanel();
div1.add(this.caption);
SimplePanel div2 = new SimplePanel();
div2.add(this.description);
panel.add(div1);
panel.add(div2);
setWidget(panel);
addStyleName(DEFAULT_STYLENAME);
DOM.setIntStyleAttribute(getElement(), "zIndex", Integer.MAX_VALUE);
}
public String getCaption() {
return caption.getText();
}
public String getText() {
return description.getText();
}
public void setCaption(String caption) {
this.caption.setText(caption);
}
public void setText(String text) {
this.description.setText(text);
}
public void onWindowResized(int width, int height) {
new DelayedRunnable() {
public void run() {
final int width = Window.getClientWidth();
getWidget().setPixelSize(Math.max(width / 3, WIDTH), HEIGHT);
center();
}
};
}
public void onPopupClosed(PopupPanel sender, boolean autoClosed) {
Window.removeWindowResizeListener(this);
glassPanel.removeFromParent();
}
}