Firing click event from code in gwt

Question

I have created a custom widget in gwt which extends the composite.I am using focus panel in that.For FocusPanel I added ClickHandler.Then I have added keyboard listner.Now on press of Enter key it should trigger click event.Can any one help me to trigger click event by using code in GWT?

focusPanel.addKeyPressHandler(new KeyPressHandler() {
            public void onKeyPress(KeyPressEvent event) {
                if (event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER)        {
                    // TODO call onClick() method
                }
            }
        });

Thanks

Answer 1

I have done this code:

if (event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER)        {
    myButton.fireEvent( new GwtEvent<ClickHandler>() {
        @Override
        public com.google.gwt.event.shared.GwtEvent.Type<ClickHandler> getAssociatedType() {
        return ClickEvent.getType();
        }
        @Override
        protected void dispatch(ClickHandler handler) {
            handler.onClick(null);
        }
   });
}

Of course myButton must be final or public cause you are inside another event handler.

Answer 2

I haven't done this for a click event, but I've done change events like this.

NativeEvent event = Document.get().createChangeEvent();
DomEvent.fireNativeEvent(event, this);

The [createClickEvent](http://google-web-toolkit.googlecode.com/svn/javadoc/1.6/com/google/gwt/dom/client/Document.html#createClickEvent(int,%20int,%20int,%20int,%20int,%20boolean,%20boolean,%20boolean,%20boolean)) method takes a lot more parameters though.

public final NativeEvent createClickEvent(int detail,
                                          int screenX,
                                          int screenY,
                                          int clientX,
                                          int clientY,
                                          boolean ctrlKey,
                                          boolean altKey,
                                          boolean shiftKey,
                                          boolean metaKey)

Answer 3

You can also use a simple JSNI method to do it. Just pass your element [e.g. button.getElement()] to this method:

public static native void clickElement(Element elem) /*-{
    elem.click();
}-*/;