Document.popupNode

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弃用
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the 兼容性表格 at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

注意： Starting with Gecko 2.0 , authors are encouraged to use the menupopup property triggerNode 代替。

When a popup attached via the popup or context attributes is opened, the XUL document's popupNode property is set to the node that was clicked on. This will be the target of the mouse event that activated the popup. If the popup was opened via the keyboard, the popup node may be set to null. Typically, this property will be checked during a popupshowing event handler for a context menu to initialize the menu based on the context.

This property is only set for popups attached via the popup or context attributes. For other types of popups, the value is not changed. In these other cases, for example when calling the popup's showPopup method, you may wish to set the popupNode property directly beforehand.

This property applies only to XUL documents.

句法

var node = document.popupNode;

范例

<menupopup id="toolbarContextMenu">
  ...
  <menuitem oncommand="mailNewsCore.deleteButton(document.popupNode)">
  ...
</menupopup>

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`popupNode` 弃用非标	Chrome No	Edge No	Firefox Yes Yes Available only to XUL documents .	IE No	Opera No	Safari No	WebView Android No	Chrome Android No	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android No

图例

完整支持
不支持
非标。预期跨浏览器支持较差。
弃用。不要用于新网站。

另请参阅

Defined in nsIDOMXULDocument.idl . XUL-specific method. Not part of any specification.

元数据

最后修改： Apr 12, 2019

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句法

范例

浏览器兼容性

图例

另请参阅

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