/*
* Copyright 2010 JBoss, a divison Red Hat, Inc
*
* 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.jboss.errai.workspaces.client.listeners;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.Widget;
import org.jboss.errai.bus.client.*;
import org.jboss.errai.bus.client.framework.ClientMessageBus;
import org.jboss.errai.bus.client.api.Message;
import org.jboss.errai.bus.client.framework.MessageBus;
import org.jboss.errai.bus.client.api.MessageCallback;
import org.jboss.errai.workspaces.client.api.Tool;
import org.jboss.errai.workspaces.client.api.ProvisioningCallback;
import org.jboss.errai.workspaces.client.layout.LayoutHint;
import org.jboss.errai.workspaces.client.layout.LayoutHintProvider;
import org.jboss.errai.workspaces.client.protocols.LayoutCommands;
import org.jboss.errai.workspaces.client.protocols.LayoutParts;
import static org.jboss.errai.bus.client.api.base.MessageBuilder.createConversation;
import static org.jboss.errai.bus.client.api.base.MessageBuilder.createMessage;
public class TabOpeningClickHandler implements ClickHandler {
private Tool tool;
public TabOpeningClickHandler(Tool tool) {
this.tool = tool;
}
public void onClick(ClickEvent event) {
String initSubject = tool.getId() + ":init";
final MessageBus bus = ErraiBus.get();
if (!bus.isSubscribed(initSubject)) {
bus.subscribe(initSubject, new MessageCallback() {
public void callback(final Message message) {
try {
tool.provideWidget(new ProvisioningCallback()
{
public void onSuccess(final Widget instance)
{
instance.getElement().setId(message.get(String.class, LayoutParts.DOMID));
RootPanel.get().add(instance);
LayoutHint.attach(instance, new LayoutHintProvider() {
public int getHeightHint() {
return Window.getClientHeight() - instance.getAbsoluteTop() - 20;
}
public int getWidthHint() {
return Window.getClientWidth() - instance.getAbsoluteLeft() - 5;
}
});
}
public void onUnavailable()
{
throw new RuntimeException("Failed to create component");
}
});
createConversation(message).getMessage().sendNowWith(bus);
}
catch (Exception e) {
e.printStackTrace();
}
}
});
}
try {
/**
* Being capturing all message registration activity. This is necessary if you want to use the automatic
* clean-up features and close the messaging channels when the tool instance closes.
*/
((ClientMessageBus)bus).beginCapture();
createMessage()
.toSubject("org.jboss.errai.WorkspaceLayout")
.command(LayoutCommands.OpenNewTab)
.with(LayoutParts.ComponentID, tool.getId())
.with(LayoutParts.IconURI, tool.getIcon().getUrl())
.with(LayoutParts.MultipleInstances, tool.multipleAllowed())
.with(LayoutParts.Name, tool.getName())
.with(LayoutParts.DOMID, tool.getId() + "_" + System.currentTimeMillis())
.with(LayoutParts.InitSubject, initSubject)
.noErrorHandling().sendNowWith(bus);
}
catch (Exception e) {
e.printStackTrace();
}
}
}