GWT Popup Example

 The following code is a example for GWT custom Popup.


import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.RootPanel;
public class MainPanel extends EntryPoint
{
    public MainPanel()
    {
       
    }

    @Override
    public void onModuleLoad()
    {
            Button b1 = new Button("Click Me!!!");
            b1.addClickHandler(new ClickHandler() {
              public void onClick(ClickEvent event) {
                // Instantiate the popup and show it.
                  SamplePopup popup = new SamplePopup();
                    popup.setGlassEnabled(true);
                    popup.center();
                    popup.show();
              }
            });

            RootPanel.get().add(b1);
    }

}

The above MailPanel which extends GWT EntryPoint, basically to provide a view to load GWT components. A buttob "b1" with label "Click me to show popup"
will be added to the view. A onclick handler is added to the button "b1", where this will show the popup with a view of SamplePopup.

The samplePopup will be as shown below.

<ui:UiBinder
  xmlns:ui='urn:ui:com.google.gwt.uibinder'
  xmlns:g='urn:import:com.google.gwt.user.client.ui'>

  <g:HTMLPanel>
    <div>A popup with this data will be shown.</div>

   </g:HTMLPanel>

</ui:UiBinder>

 
   

A popup with this data will be shown.

  



SamplePopui.java

import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.IFrameElement;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiTemplate;
import com.google.gwt.user.client.ui.Frame;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.Widget;

public class SamplePopup extends PopupPanel {
   
    @UiTemplate("SamplePopup.ui.xml")
    interface Binder extends UiBinder { }
   
   
    @UiField
    Frame flexPopupContainer;
   
    private static final Binder binder = GWT.create(Binder.class);
   
    public SamplePopup() {
        super(true);
        add(binder.createAndBindUi(this));
       
    }
}

How to apply filterFunction to Array Collection in Adobe Flex or Action Script ?

The following is an example that will show you how to apply a fiterFunction to array collection in action script.

var idsList:ArrayCollection=new ArrayCollection(["1","2","3"]);
var nodeId:Number = 2;

var filterByIdFilter:Function = function(item:Number):Boolean
{
    if(item == nodeId) return true;
    return false;
}
idsList.filterFunction = filterByIdFilter;
idsList.refresh();

If the provided nodeId matches with idsList array collection, after applying filterFunction the idsList will be truncated to size "1", otherwise size "0".