Java/GWT/Timer

GWT Timer

   <source lang="java">

package com.jexp.gwt.client; import com.google.gwt.user.client.*; import com.google.gwt.user.client.ui.*; import com.google.gwt.core.client.*; public class GWTClient implements EntryPoint{

 public void onModuleLoad() {
   Label label = new Label();
   label.setText("label with tooltip");
   
   
   
   label.addMouseListener(new MouseListenerAdapter() {
     public void onMouseEnter(Widget sender) {
        ToolTip tip = new ToolTip("this is a tooltip.",0,0);
     }
     public void onMouseLeave(Widget sender) {
     }
     public void onMouseDown(Widget sender, int x, int y) {
     }
     public void onMouseUp(Widget sender, int x, int y) {
     }
   });
   RootPanel.get().add(label);
 }

}

class ToolTip extends PopupPanel{
 final int VISIBLE_DELAY = 2000;
 
 Timer removeDelay;
 
 public ToolTip(String message, int x, int y){
     super(true);
     this.setPopupPosition(x, y);
     this.add(new Label(message));
     removeDelay = new Timer(){
     public void run() {
         ToolTip.this.setVisible(false);
       ToolTip.this.hide();
     }        
     };
     removeDelay.schedule(VISIBLE_DELAY);
     this.addPopupListener(new PopupListener(){
     public void onPopupClosed(PopupPanel sender, boolean autoClosed) {
       removeDelay.cancel();
     }
     });
     this.setStyleName("toolTip");
     this.show();
   }
 
 public boolean onEventPreview(Event event){
     int type = DOM.eventGetType(event);
     switch(type){
        case Event.ONMOUSEDOWN:
        case Event.ONCLICK:{
          this.hide();
          return true;
        }
     }
     return false;
 }

}

      </source>