右键单击GWT？ [英] RIght-Click in GWT?
问题描述
我建立一个AJAX的web应用程序使用GWT，我想用右键点击各种事情，就像在一个桌面应用程序。但是，右键单击生产标准的Web上下文菜单，无效的onClick（ClickEvent事件）不会被调用。有没有人想出如何得到这个工作？谢谢！
I am building an AJAX web app with GWT, and I want to use right-click for various things, just like in a desktop app. However, right-click produces the standard Web context menu and void onClick(ClickEvent event) never gets called. Has anyone figured out how to get this to work? thanks!
推荐答案
易peasy，在其将基于这样的用户右键单击显示插件的contextmenuhandler添加监听器。 https://confluence.clazzes.org/pages/viewpage.action?pageId=425996
easy peasy, add a listener on the contextmenuhandler which will display a widget based on where the user right clicks. https://confluence.clazzes.org/pages/viewpage.action?pageId=425996
class MyWidget extends Composite implements ContextMenuHandler {
// just an example, use a meaningful Widget here...
private Widget base;
private PopupPanel contextMenu;
public MyWidget() {
// initialize base widget, etc...
this.contextMenu = new PopupPanel(true);
this.contextMenu.add(new HTML("My Context menu!"));
this.contextMenu.hide();
initWidget(this.base);
// of course it would be better if base would implement HasContextMenuHandlers, but the effect is the same
addDomHandler(this, ContextMenuEvent.getType());
}
public void onContextMenu(ContextMenuEvent event) {
// stop the browser from opening the context menu
event.preventDefault();
event.stopPropagation();
this.contextMenu.setPopupPosition(event.getNativeEvent().getClientX(), event.getNativeEvent().getClientY());
this.contextMenu.show();
}
}
最后，你会想禁用浏览器菜单中这种类型的上下文菜单的全超载。这应该适用于所有的浏览器除歌剧。但老实说，谁使用，这些天NEWAYS ^ _______ ^
<body oncontextmenu="return false;">
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