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Diffstat (limited to 'files/zh-cn/mozilla/tech/xul/attribute/onpopupshowing/index.html')
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diff --git a/files/zh-cn/mozilla/tech/xul/attribute/onpopupshowing/index.html b/files/zh-cn/mozilla/tech/xul/attribute/onpopupshowing/index.html new file mode 100644 index 0000000000..ec821daefe --- /dev/null +++ b/files/zh-cn/mozilla/tech/xul/attribute/onpopupshowing/index.html @@ -0,0 +1,21 @@ +--- +title: onpopupshowing +slug: Mozilla/Tech/XUL/Attribute/onpopupshowing +translation_of: Archive/Mozilla/XUL/Attribute/onpopupshowing +--- +<div class="noinclude"> + <span class="breadcrumbs xulRefAttr_breadcrumbs">« <a href="/zh-CN/docs/XUL_Reference">XUL Reference home</a></span></div> +<dl> + <dt> + <code id="a-onpopupshowing"><a href="https://developer.mozilla.org/zh-CN/docs/Mozilla/Tech/XUL/Attribute/onpopupshowing">onpopupshowing</a></code></dt> + <dd> + Type: <em>script code</em></dd> + <dd> + This event is sent to a popup just before it is opened. This handler is usually used to dynamically set the contents when the user requests to display it. Returning <code>false</code> from this event handler prevents the popup from appearing.</dd> + <dd> + 该事件在 popup 打开之前传给它。它用于动态生成菜单项。如果返回 false 值，则 popup 将不会显示菜单项。</dd> +</dl> +<div class="noinclude"> + <p></p> +</div> +<p> </p> |