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Deprecated
This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Avoid using it and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

Note: Starting with Gecko 2.0, authors are encouraged to use the menupopup property triggerNode instead.

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.

Syntax

var node = document.popupNode;

Example

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

See http://www.mozilla.org/xpfe/xptoolkit/popups.html

See also

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 最終更新者: valtlai,