1. #1
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    Default TabItem close listener

    TabItem close listener


    Hello,

    I have several tabs and need to do some action when tab is being closed,but it does not work,i dont know why

    Code:
                    TabItem ti = new TabItem(id);
                    ti.setClosable(true);
    
    		ti.addListener(Events.Close, new Listener<BaseEvent>() {
    			public void handleEvent(BaseEvent arg0) {
    				com.google.gwt.user.client.Window.alert("");
    			}
    
    		});
    		
    		tabPanel.add(ti);
    I use EXT GWT 2.2.3 and GWT 2.2.1 version

  2. #2
    Sencha User chalu's Avatar
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    Default


    Set Events.BeforeRemove listener on the TabPanel, Try this instead :
    Code:
    tabPanel.addListener(Events.BeforeRemove, new Listener<TabPanelEvent>() {
    	@Override
    	public void handleEvent(TabPanelEvent evt) {
    	     if(true){ // U decide what this condition should be
                     evt.setCancelled(true);
                 }
    	}
    });

  3. #3
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    Default


    The containing component can detect closing of the tabitem or rather the event before removal from the tabpanel. My code is something like :

    Code:
    public void handleEvent(BaseEvent be) {
            try {            
                if (be instanceof TabPanelEvent && be.getType() == Events.BeforeRemove) {
                    TabItem tabItem = ((TabPanelEvent) be).getItem();
                    //  do your thing
                }
            }
            catch (Exception e) {
                // exception handling code
            }
    }

  4. #4
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    Default


    BeforeClose : TabPanelEvent(tabPanel, item)
    Fires before an item is closed by the user clicking the close icon. Listeners can cancel the action by calling BaseEvent.

    You should see the API

  5. #5
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    Default


    Thank you guys ,it works now

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