zh-CN: create pageAction.setTitle() (#25269)

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

@@ -0,0 +1,85 @@
+---
+title: pageAction.setTitle()
+slug: Mozilla/Add-ons/WebExtensions/API/pageAction/setTitle
+l10n:
+  sourceCommit: b8a0743ca8b1e1b1b1a95cc93a4413c020f11262
+---
+
+{{AddonSidebar}}
+
+设置页面操作的标题。当用户悬停在页面操作上时，标题会显示在工具提示中。
+
+## 语法
+
+```js-nolint
+browser.pageAction.setTitle(
+  details // 对象
+)
+```
+
+### 参数
+
+- `details`
+
+  - : `object`。
+
+    - `tabId`
+      - : `integer`。要设置标题的标签页 ID。
+    - `title`
+
+      - : `string` 或 `null`。工具提示文本。
+
+        如果传入了 `null`，则标题将重置为在 [`page_action`](/zh-CN/docs/Mozilla/Add-ons/WebExtensions/manifest.json/page_action) 清单键中指定的标题。
+
+## 浏览器兼容性
+
+{{Compat}}
+
+## 示例
+
+当一个标签页被更新时，在该标签页内显示页面操作，并将页面操作的标题设置为标签页的 ID：
+
+```js
+browser.tabs.onUpdated.addListener((tabId, changeInfo, tabInfo) => {
+  browser.pageAction.show(tabId);
+  browser.pageAction.setTitle({
+    tabId,
+    title: `标签页 ID：${tabId}`,
+  });
+});
+```
+
+{{WebExtExamples}}
+
+> [!NOTE]
+> 该 API 基于 Chromium 的 [`chrome.pageAction`](https://developer.chrome.google.cn/docs/extensions/mv2/reference/pageAction#method-setTitle) 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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