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package com.itmill.toolkit.demo;
import com.itmill.toolkit.data.Property.ValueChangeEvent;
import com.itmill.toolkit.terminal.ExternalResource;
import com.itmill.toolkit.ui.Embedded;
import com.itmill.toolkit.ui.ExpandLayout;
import com.itmill.toolkit.ui.Select;
import com.itmill.toolkit.ui.Window;
/**
* Demonstrates the use of Embedded and "suggesting" Select by creating a simple
* web-browser. Note: does not check for recursion.
*
* @author IT Mill Ltd.
* @see com.itmill.toolkit.ui.Window
*/
public class BrowserDemo extends com.itmill.toolkit.Application implements
Select.ValueChangeListener {
// Default URL to open.
private static final String DEFAULT_URL = "http://www.itmill.com";
// The embedded page
Embedded emb = new Embedded();
public void init() {
// Create and set main window
Window browser = new Window("IT Mill Browser");
setMainWindow(browser);
// Use the expand layout to allow one component to use as much
// space as
// possible.
ExpandLayout exl = new ExpandLayout();
browser.setLayout(exl);
exl.setSizeFull();
// create the address combobox
Select select = new Select();
// allow input
select.setNewItemsAllowed(true);
// no empty selection
select.setNullSelectionAllowed(false);
// no 'go' -button clicking necessary
select.setImmediate(true);
// add some pre-configured URLs
select.addItem(DEFAULT_URL);
select.addItem("http://www.google.com");
select.addItem("http://toolkit.itmill.com/demo");
// add to layout
exl.addComponent(select);
// add listener and select initial URL
select.addListener(this);
select.setValue(DEFAULT_URL);
// configure the embedded and add to layout
emb.setType(Embedded.TYPE_BROWSER);
exl.addComponent(emb);
// make the embedded as large as possible
exl.expand(emb);
}
public void valueChange(ValueChangeEvent event) {
String url = (String) event.getProperty().getValue();
if (url != null) {
// the selected url has changed, let's go there
emb.setSource(new ExternalResource(url));
}
}
}
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