在preventDefault之后重新触发事件 [英] Re-fire event after a preventDefault

问题描述

我已经用preventDefault阻止了一个事件。现在我想重新抛出它。我尝试了fireEvent，但没有奏效。有没有办法实现这一点？

I have stopped an event with preventDefault. Now I want to rethrow it. I tried the fireEvent but that did not work. Is there a way to achieve this?

更新而不是fire事件，我创建了一个新的事件实例并使用elem.dispatchEvent（clickEvent ）;

UPDATE Instead of fire event I created a new instance of the event and used elem.dispatchEvent(clickEvent);

    Event.addNativePreviewHandler(new Event.NativePreviewHandler()
    {
        public void onPreviewNativeEvent(NativePreviewEvent event) 
        {

            if (event.getTypeInt() == Event.ONMOUSEDOWN)
            {
                Element elem = JSHelper.elementFromPoint(event.getNativeEvent().getClientX(), event.getNativeEvent().getClientY());
                EventListener listener = Event.getEventListener(elem);
                if((listener instanceof ListBox))
                {
                    event.getNativeEvent().preventDefault();



                ////    ((ListBox) listener).fireEvent(event);

                    int y = event.getNativeEvent().getClientY();
                    int x = event.getNativeEvent().getClientX();

                    int screenX = event.getNativeEvent().getScreenX();
                    int screenY = event.getNativeEvent().getScreenY();

                    NativeEvent clickEvent = Document.get().createMouseEvent(
                            "click",true, false,0, screenX, screenY, x, y, false, false,
                            false, false, NativeEvent.BUTTON_LEFT, elem);

                    elem.dispatchEvent(clickEvent);



                }
            }
        }
    });

推荐答案

为什么你尝试再次解雇？试着调用你应该使用的事件处理函数

Why do u try to fire it again? Just try to call the event handler function you supposed to

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