TextBox上的GWT输入事件 [英] GWT input event on TextBox

问题描述

给出以下代码:

    TextBox tb = new TextBox();
    tb.addValueChangeHandler(new ValueChangeHandler<String>() {

        @Override
        public void onValueChange(ValueChangeEvent<String> event) {
            Window.alert(event.getValue());

        }
    });

如果TextBox失去焦点，则会调用

onValueChange.每当输入值更改时，我都试图调用它.我已阅读的所有解决方案都涉及处理键盘输入和粘贴事件，例如此答案. 如何在GWT中构建Facebook风格的输入框这不是GWT 2.5.1中的地址吗?有没有办法绑定到本机输入更改方法?如果具有此功能，则可以使用其他小部件或使用UI框架

onValueChange will be called if the TextBox loses focus. I am trying to have it called whenever the input value changes. The solutions I have read all involve handling the keyup and paste events such as in this answer. How to build a Facebook-style input box in GWT Hasn't this been addresses in GWT 2.5.1? Is there a way to bind to the native input change method? Another widget or using the UI framework would be acceptable if they have this functionality

推荐答案

GWT中的唯一方法是绑定到按下/按下并粘贴事件.

The only way in GWT is to bind to the key down/key up and paste events.

请发送补丁程序以添加对输入事件的支持(使用addBitlessDomHandler): http://www.gwtproject.org/makinggwtbetter.html ，它应该很容易(在DOMImpl中添加aa case)，并且有很好的机会加入其中(如果发送得足够早，则有很好的机会在GWT 2.6中发布)

Please send a patch to add support for the input event (using addBitlessDomHandler): http://www.gwtproject.org/makinggwtbetter.html, it should be rather easy (add a acase in DOMImpl) and has good chances to make it in (and if sent early enough, would have good chances to ship in GWT 2.6)

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