EventsExecutor.java 文件源码

public void setKeyReleased(JavaScriptObject aValue) {
    if (keyReleased != aValue) {
        if (keyUpReg != null) {
            keyUpReg.removeHandler();
            keyUpReg = null;
        }
        keyReleased = aValue;
        if (keyReleased != null && component instanceof HasKeyUpHandlers) {
            keyUpReg = ((HasKeyUpHandlers) component).addKeyUpHandler(new KeyUpHandler() {
                @Override
                public void onKeyUp(KeyUpEvent event) {
                    if (keyReleased != null) {
                        event.stopPropagation();
                        executeEvent(keyReleased, EventsPublisher.publish(event));
                    }
                }

            });
        }
    }
}