/*
* Ext GWT 2.2.0 - Ext for GWT
* Copyright(c) 2007-2010, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
package com.extjs.gxt.desktop.client;
import com.extjs.gxt.ui.client.GXT;
import com.extjs.gxt.ui.client.core.El;
import com.extjs.gxt.ui.client.event.ComponentEvent;
import com.extjs.gxt.ui.client.event.Events;
import com.extjs.gxt.ui.client.event.SelectionListener;
import com.extjs.gxt.ui.client.util.IconHelper;
import com.extjs.gxt.ui.client.util.Util;
import com.extjs.gxt.ui.client.widget.Component;
import com.extjs.gxt.ui.client.widget.IconSupport;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.AbstractImagePrototype;
/**
* A selectable icon and text added to the desktop. Each shortcut requires an id
* that has matching css styles for the icon.
*
* <pre>
* <code>
* Shortcut s2 = new Shortcut();
* s2.setText("Accordion Window");
* s2.setId("acc-win-shortcut");
*
* #acc-win-shortcut img {
* width: 48px;
* height: 48px;
* background-image: url(../images/im48x48.png);
* }
*
* </code>
* </pre>
*/
public class Shortcut extends Component implements IconSupport {
private AbstractImagePrototype icon;
private El iconEl;
private String text;
private El textEl;
/**
* Creates a new shortcut.
*/
public Shortcut() {
}
/**
* Creates a new shortcut.
*
* @param id the shortcut id
* @param text the shortcut text
*/
public Shortcut(String id, String text) {
setId(id);
setText(text);
}
/**
* Adds a selection listener.
*
* @param listener the listener to add
*/
public void addSelectionListener(SelectionListener<? extends ComponentEvent> listener) {
addListener(Events.Select, listener);
}
public AbstractImagePrototype getIcon() {
return icon;
}
/**
* Returns the shortcuts text.
*
* @return the text
*/
public String getText() {
return text;
}
@Override
public void onComponentEvent(ComponentEvent ce) {
super.onComponentEvent(ce);
if (ce.getEventTypeInt() == Event.ONCLICK) {
onClick(ce);
}
}
/**
* Removes a previously added listener.
*
* @param listener the listener to be removed
*/
public void removeSelectionListener(SelectionListener<? extends ComponentEvent> listener) {
removeListener(Events.Select, listener);
}
public void setIcon(AbstractImagePrototype icon) {
if (rendered) {
iconEl.setInnerHtml("");
iconEl.appendChild((Element) icon.createElement().cast());
}
this.icon = icon;
}
public void setIconStyle(String icon) {
setIcon(IconHelper.create(icon, 48, 48));
}
/**
* Sets the shortcuts text.
*
* @param text the text
*/
public void setText(String text) {
this.text = text;
if(textEl != null){
textEl.update(Util.isEmptyString(text) ? " " : text);
}
}
protected void onClick(ComponentEvent ce) {
ce.stopEvent();
fireEvent(Events.Select, ce);
}
@Override
protected void onRender(Element target, int index) {
super.onRender(target, index);
setElement(DOM.createElement("dt"), target, index);
El a = el().createChild("<a href='#'></a>");
iconEl = a.createChild("<div><img src='" + GXT.BLANK_IMAGE_URL + "' /></div>");
textEl = a.createChild("<div></div>");
el().updateZIndex(0);
sinkEvents(Event.ONCLICK);
if (icon != null) {
setIcon(icon);
}
setText(text);
}
}