public class TabFolderExample extends TabFolderExtension implements FolderHandlerExtension {
	VerticalPanel vPanel;
 
	public TabFolderExample() {
		vPanel = new VerticalPanel();
		vPanel.add(new HTML("hello world"));
 
		initWidget(vPanel);
	}
 
	@Override
	public String getTabText() {
		return "New folder tab";
	}
 
	@Override
	public void set(GWTFolder doc) {
		// TODO Auto-generated method stub
	}
 
	@Override
	public void setVisibleButtons(boolean visible) {
		// TODO Auto-generated method stub
	}
 
	@Override
	public void onChange(FolderEventConstant event) {
		if (event.equals(HasFolderEvent.TAB_CHANGED)) {
			Window.alert("tab changed - " + event.getType());
		}
	}
}

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Methods
Sample

FolderHandlerExtension

Any extension that implements FolderHandlerExtension will be looking all events triggered from folder ta.

Methods

method	Description
onChange(FolderEventConstant event)	Each time it'll be some new folder event the method onChange it'll be fired by OpenKM .

Sample

public class TabFolderExample extends TabFolderExtension implements FolderHandlerExtension {
	VerticalPanel vPanel;
 
	public TabFolderExample() {
		vPanel = new VerticalPanel();
		vPanel.add(new HTML("hello world"));
 
		initWidget(vPanel);
	}
 
	@Override
	public String getTabText() {
		return "New folder tab";
	}
 
	@Override
	public void set(GWTFolder doc) {
		// TODO Auto-generated method stub
	}
 
	@Override
	public void setVisibleButtons(boolean visible) {
		// TODO Auto-generated method stub
	}
 
	@Override
	public void onChange(FolderEventConstant event) {
		if (event.equals(HasFolderEvent.TAB_CHANGED)) {
			Window.alert("tab changed - " + event.getType());
		}
	}
}