zh-CN: create pageAction.onClicked

files/zh-cn/mozilla/add-ons/webextensions/api/pageaction/onclicked/index.md

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+---
+title: pageAction.onClicked
+slug: Mozilla/Add-ons/WebExtensions/API/pageAction/onClicked
+l10n:
+  sourceCommit: acc6ec7d08ede0727a68cbc696e983c572940f62
+---
+
+{{AddonSidebar}}
+
+当页面操作图标被点击时触发。如果页面操作有弹窗，则该事件将不会被触发。
+
+要定义右键单击操作，请使用{{WebExtAPIRef('contextMenus', "上下文菜单", "", "nocode")}} API（使用 `page_action` {{WebExtAPIRef('contextMenus/ContextType', '上下文类型', '', 'nocode')}}）。
+
+## 语法
+
+```js-nolint
+browser.pageAction.onClicked.addListener(listener)
+browser.pageAction.onClicked.removeListener(listener)
+browser.pageAction.onClicked.hasListener(listener)
+```
+
+事件有三个函数：
+
+- `addListener(listener)`
+  - : 为该事件添加监听器。
+- `removeListener(listener)`
+  - : 停止监听此事件。`listener` 参数是要移除的监听器。
+- `hasListener(listener)`
+  - : 检查是否已为此事件注册了 `listener`。如果正在监听，则返回 `true`，否则返回 `false`。
+
+## addListener 语法
+
+### 参数
+
+- `listener`
+
+  - : 当该事件发生时要调用的函数。该函数接收如下参数：
+
+    - `tab`
+      - : 一个表示被点击的页面操作的标签页的 {{WebExtAPIRef('tabs.Tab')}} 对象。
+    - `OnClickData`
+
+      - : 包含有关点击的信息的对象。
+
+        - `modifiers`
+          - : `array`。点击页面操作按钮时使用的键盘修饰符，可以是 `Shift`、`Alt`、`Command`、`Ctrl` 或 `MacCtrl` 中的一个或多个。
+        - `button`
+          - : `integer`。指示用于点击页面操作图标的按钮：`0` 表示左键单击或不与鼠标相关的点击（例如键盘点击），`1` 表示中键或滚轮点击。请注意，并不支持右键单击，因为 Firefox 在触发此事件之前会消耗右键单击以显示上下文菜单。
+
+## 浏览器兼容性
+
+{{Compat}}
+
+## 示例
+
+以下示例演示了如何在用户单击页面操作时隐藏该页面操作，并将活动标签页导航到“<https://giphy.com/explore/cat>”：
+
+```js
+let catGifs = "https://giphy.com/explore/cat";
+
+browser.pageAction.onClicked.addListener((tab) => {
+  browser.pageAction.hide(tab.id);
+  browser.tabs.update({ url: catGifs });
+});
+
+browser.pageAction.onClicked.addListener(() => {});
+```
+
+{{WebExtExamples}}
+
+> [!NOTE]
+> 该 API 基于 Chromium 的 [`chrome.pageAction`](https://developer.chrome.google.cn/docs/extensions/mv2/reference/pageAction#event-onClicked) API。本文衍生自 Chromium 代码中的 [`page_action.json`](https://chromium.googlesource.com/chromium/src/+/master/chrome/common/extensions/api/page_action.json)。
+
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