/*
* Copyright (c) 2009-2010 Lockheed Martin Corporation
*
* 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.eurekastreams.web.client.ui.pages.start.layouts;
import java.util.Date;
import org.eurekastreams.server.action.request.start.SetTabLayoutRequest;
import org.eurekastreams.server.domain.Layout;
import org.eurekastreams.web.client.events.HideNotificationEvent;
import org.eurekastreams.web.client.events.Observer;
import org.eurekastreams.web.client.events.data.UpdatedStartPageLayoutResponseEvent;
import org.eurekastreams.web.client.history.CreateUrlRequest;
import org.eurekastreams.web.client.jsni.WidgetJSNIFacadeImpl;
import org.eurekastreams.web.client.model.StartTabsModel;
import org.eurekastreams.web.client.ui.Session;
import org.eurekastreams.web.client.ui.common.OLPanel;
import org.eurekastreams.web.client.ui.pages.master.StaticResourceBundle;
import org.eurekastreams.web.client.ui.pages.start.preferences.PortalPreferenceFacade;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Hyperlink;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;
/**
* Tab layout selector.
*/
public class TabLayoutSelectorPanel extends FlowPanel implements PortalPreferenceFacade
{
/**
* Default animation speed.
*/
public static final int ANIMATION_SPEED = 600;
/**
* Default margin.
*/
public static final int NAV_MARGIN = 40;
/**
* Currrently active layout.
*/
private FlowPanel activeLayout = new FlowPanel();
/**
* Current layout.
*/
private Layout currentLayout;
/**
* The carousel div.
*/
private FlowPanel carousel = new FlowPanel();
/**
* If the carousel has loaded.
*/
private boolean loaded = false;
/**
* Tab id.
*/
private Long tabId;
/**
* JSNI Facade.
*/
private WidgetJSNIFacadeImpl jSNIFacade = new WidgetJSNIFacadeImpl();
/**
* Constructor.
*
* @param inTabId
* the tab for the layout selector.
* @param inLayout
* the layout.
*/
public TabLayoutSelectorPanel(final Long inTabId, final Layout inLayout)
{
tabId = inTabId;
this.addStyleName(StaticResourceBundle.INSTANCE.coreCss().yuiSkinSam());
this.addStyleDependentName(StaticResourceBundle.INSTANCE.coreCss().yuiSkinSam());
activeLayout.setStyleName(StaticResourceBundle.INSTANCE.coreCss().activeLayout());
this.add(activeLayout);
this.add(carousel);
setActiveLayout(inLayout);
Session.getInstance().getEventBus().addObserver(UpdatedStartPageLayoutResponseEvent.class,
new Observer<UpdatedStartPageLayoutResponseEvent>()
{
public void update(final UpdatedStartPageLayoutResponseEvent event)
{
if (event.getResponse().getId() == inTabId)
{
setActiveLayout(event.getResponse().getTabLayout());
}
}
});
}
/**
* Called when the carousel loads.
*/
@Override
public void onLoad()
{
super.onLoad();
if (!loaded)
{
Date date = new Date();
String timeStamp = new Long(date.getTime()).toString();
carousel.clear();
carousel.getElement().setAttribute("id", "carousel" + timeStamp);
OLPanel ulpanel = new OLPanel();
carousel.add(ulpanel);
for (final Layout layout : Layout.values())
{
Hyperlink icon = new Hyperlink();
icon.addStyleName(StaticResourceBundle.INSTANCE.coreCss().layoutIcon());
icon.setText("layout");
icon.setTargetHistoryToken(Session.getInstance().generateUrl(new CreateUrlRequest()));
icon.addStyleName(layout.toString().toLowerCase());
icon.addClickHandler(new ClickHandler()
{
public void onClick(final ClickEvent event)
{
boolean shouldChange = true;
if (currentLayout.getNumberOfZones() > layout.getNumberOfZones())
{
shouldChange = jSNIFacade.confirm("You have a column that would be removed. "
+ "Should we move your apps for you?");
}
if (shouldChange)
{
Session.getInstance().getEventBus().notifyObservers(new HideNotificationEvent());
StartTabsModel.getInstance().setLayout(new SetTabLayoutRequest(layout, tabId));
}
}
});
ulpanel.add(icon);
}
setupCarousel(timeStamp);
loaded = true;
}
}
/**
* Setup the carousel with YUI.
*
* @param timeStamp
* used to allow multiple carousels.
*/
private static native void setupCarousel(final String timeStamp) /*-{
var carousel = new $wnd.YAHOO.widget.Carousel("carousel" + timeStamp);
carousel.set("animation", { speed: 0.5 });
carousel.set("numVisible", 5);
carousel.set("scrollIncrement", 5);
carousel.render();
carousel.show();
}-*/;
/**
* Set the active layout.
*
* @param layout
* the layout to use.
*/
private void setActiveLayout(final Layout layout)
{
currentLayout = layout;
Hyperlink layoutIcon = new Hyperlink();
layoutIcon.addStyleName(StaticResourceBundle.INSTANCE.coreCss().layoutIcon());
layoutIcon.setText("layout");
layoutIcon.addStyleName(layout.toString().toLowerCase());
activeLayout.clear();
activeLayout.add(layoutIcon);
activeLayout.add(new Label("Currently Selected"));
}
/**
* Get the layout title.
*
* @return the layout title.
*/
@Override
public String getTitle()
{
return "Change Layout";
}
/**
* There is no title bar widget.
*
* @return nothing.
*/
public Widget getTitleBarWidget()
{
return null;
}
}