本文整理汇总了Java中com.google.gwt.event.dom.client.HasKeyDownHandlers类的典型用法代码示例。如果您正苦于以下问题：Java HasKeyDownHandlers类的具体用法？Java HasKeyDownHandlers怎么用？Java HasKeyDownHandlers使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
HasKeyDownHandlers类属于com.google.gwt.event.dom.client包，在下文中一共展示了HasKeyDownHandlers类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: setKeyPressed
import com.google.gwt.event.dom.client.HasKeyDownHandlers; //导入依赖的package包/类
public void setKeyPressed(JavaScriptObject aValue) {
if (keyPressed != aValue) {
if (keyDownReg != null) {
keyDownReg.removeHandler();
keyDownReg = null;
}
keyPressed = aValue;
if (keyPressed != null && component instanceof HasKeyDownHandlers) {
keyDownReg = ((HasKeyDownHandlers) component).addKeyDownHandler(new KeyDownHandler() {
@Override
public void onKeyDown(KeyDownEvent event) {
if (keyPressed != null) {
event.stopPropagation();
executeEvent(keyPressed, EventsPublisher.publish(event));
}
}
});
}
}
}
示例2: fixHandlers
import com.google.gwt.event.dom.client.HasKeyDownHandlers; //导入依赖的package包/类
private void fixHandlers(final FilterBox box, Widget w) {
if (w instanceof HasBlurHandlers)
((HasBlurHandlers)w).addBlurHandler(box.iBlurHandler);
if (w instanceof HasFocusHandlers)
((HasFocusHandlers)w).addFocusHandler(box.iFocusHandler);
if (w instanceof HasKeyDownHandlers)
((HasKeyDownHandlers)w).addKeyDownHandler(new KeyDownHandler() {
@Override
public void onKeyDown(KeyDownEvent event) {
if (event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ESCAPE)
if (box.isFilterPopupShowing()) box.hideFilterPopup();
}
});
}
示例3: addKeyDownHandler
import com.google.gwt.event.dom.client.HasKeyDownHandlers; //导入依赖的package包/类
/**
* Sets the KeyDown event handler in many widgets
* @param handler the handler
* @param widgets the widgets
*/
public static void addKeyDownHandler(final KeyDownHandler handler,final HasKeyDownHandlers... widgets) {
if (handler != null && widgets != null && widgets.length > 0) {
for (HasKeyDownHandlers w : widgets) {
if (w != null) w.addKeyDownHandler(handler);
}
}
}