/*
* Copyright (c) 2011 PonySDK
* Owners:
* Luciano Broussal <luciano.broussal AT gmail.com>
* Mathieu Barbier <mathieu.barbier AT gmail.com>
* Nicolas Ciaravola <nicolas.ciaravola.pro AT gmail.com>
*
* WebSite:
* http://code.google.com/p/pony-sdk/
*
* 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 com.ponysdk.ui.server.basic;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import org.json.JSONException;
import org.json.JSONObject;
import com.ponysdk.core.instruction.Add;
import com.ponysdk.core.instruction.Update;
import com.ponysdk.core.stm.Txn;
import com.ponysdk.ui.server.basic.event.HasPAnimation;
import com.ponysdk.ui.server.basic.event.HasPWidgets;
import com.ponysdk.ui.server.basic.event.PCloseEvent;
import com.ponysdk.ui.server.basic.event.PCloseHandler;
import com.ponysdk.ui.server.basic.event.POpenEvent;
import com.ponysdk.ui.server.basic.event.POpenHandler;
import com.ponysdk.ui.terminal.Dictionnary.HANDLER;
import com.ponysdk.ui.terminal.Dictionnary.PROPERTY;
import com.ponysdk.ui.terminal.WidgetType;
/**
* A widget that consists of a header and a content panel that discloses the content when a user clicks on the
* header. <h3>CSS Style Rules</h3>
* <dl class="css">
* <dt>.gwt-DisclosurePanel
* <dd>the panel's primary style
* <dt>.gwt-DisclosurePanel-open
* <dd>dependent style set when panel is open
* <dt>.gwt-DisclosurePanel-closed
* <dd>dependent style set when panel is closed
* </dl>
* <p>
* The header and content sections can be easily selected using css with a child selector:<br/>
* .gwt-DisclosurePanel-open .header { ... }
* </p>
*/
public class PDisclosurePanel extends PWidget implements HasPWidgets, HasPAnimation {
// TODO nciaravola must be moved in PTDisclosurePanel
private static final String CLOSED = "images/disclosure_closed.png";
private static final String OPENNED = "images/disclosure_openned.png";
private boolean animationEnabled = false;
private PWidget content;
private boolean isOpen;
private final List<PCloseHandler> closeHandlers = new ArrayList<PCloseHandler>();
private final List<POpenHandler> openHandlers = new ArrayList<POpenHandler>();
public PDisclosurePanel(final String headerText) {
this(headerText, new PImage(OPENNED, 0, 0, 14, 14), new PImage(CLOSED, 0, 0, 14, 14));
}
public PDisclosurePanel(final String headerText, final PImage openImage, final PImage closeImage) {
super();
create.put(PROPERTY.TEXT, headerText);
create.put(PROPERTY.DISCLOSURE_PANEL_OPEN_IMG, openImage.getID());
create.put(PROPERTY.DISCLOSURE_PANEL_CLOSE_IMG, closeImage.getID());
}
@Override
public void onClientData(final JSONObject event) throws JSONException {
final String handler = event.getString(HANDLER.KEY);
if (HANDLER.KEY_.CLOSE_HANDLER.equals(handler)) {
this.isOpen = false;
for (final PCloseHandler closeHandler : closeHandlers) {
closeHandler.onClose(new PCloseEvent(this));
}
} else if (HANDLER.KEY_.OPEN_HANDLER.equals(handler)) {
this.isOpen = true;
for (final POpenHandler openHandler : openHandlers) {
openHandler.onOpen(new POpenEvent(this));
}
} else {
super.onClientData(event);
}
}
@Override
protected WidgetType getWidgetType() {
return WidgetType.DISCLOSURE_PANEL;
}
public void setContent(final PWidget w) {
// Validate
if (w == content) { return; }
// Detach new child.
if (w != null) {
w.removeFromParent();
}
// Remove old child.
if (content != null) {
remove(content);
}
// Logical attach.
content = w;
if (w != null) {
// Physical attach.
final Add add = new Add(w.getID(), getID());
Txn.get().getTxnContext().save(add);
adopt(w);
}
}
public PWidget getContent() {
return content;
}
@Override
public Iterator<PWidget> iterator() {
return Arrays.asList(content).iterator();
}
@Override
public void add(final PWidget w) {
if (this.getContent() == null) {
setContent(w);
} else {
throw new IllegalStateException("A DisclosurePanel can only contain two Widgets.");
}
}
@Override
public void add(final IsPWidget w) {
add(w.asWidget());
}
@Override
public void clear() {
setContent(null);
}
@Override
public boolean remove(final PWidget w) {
if (w == getContent()) {
setContent(null);
return true;
}
return false;
}
private final void adopt(final PWidget child) {
assert (child.getParent() == null);
child.setParent(this);
}
public void setOpen(final boolean isOpen) {
if (this.isOpen != isOpen) {
this.isOpen = isOpen;
final Update update = new Update(getID());
update.put(PROPERTY.OPEN, isOpen);
Txn.get().getTxnContext().save(update);
}
}
public void addCloseHandler(final PCloseHandler handler) {
closeHandlers.add(handler);
}
public void addOpenHandler(final POpenHandler handler) {
openHandlers.add(handler);
}
public boolean isOpen() {
return isOpen;
}
@Override
public boolean isAnimationEnabled() {
return animationEnabled;
}
@Override
public void setAnimationEnabled(final boolean animationEnabled) {
this.animationEnabled = animationEnabled;
final Update update = new Update(ID);
update.put(PROPERTY.ANIMATION, animationEnabled);
Txn.get().getTxnContext().save(update);
}
}