Clients | Web API

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规范
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Clients interface provides access to Client objects. Access it via self .clients 在 service worker .

方法

Clients.get(): Returns a Promise 对于 Client matching a given id .
Clients.matchAll(): 返回 Promise for an array of Client objects. An options argument allows you to control the types of clients returned.
Clients.openWindow(): Opens a new browser window for a given url and returns a Promise for the new WindowClient .
Clients.claim(): Allows an active service worker to set itself as the controller for all clients within its scope .

范例

The following example shows an existing chat window or creates a new one when the user clicks a notification.

addEventListener('notificationclick', event => {
  event.waitUntil(async function() {
    const allClients = await clients.matchAll({
      includeUncontrolled: true
    });
    let chatClient;
    // Let's see if we already have a chat window open:
    for (const client of allClients) {
      const url = new URL(client.url);
      if (url.pathname == '/chat/') {
        // Excellent, let's use it!
        client.focus();
        chatClient = client;
        break;
      }
    }
    // If we didn't find an existing chat window,
    // open a new one:
    if (!chatClient) {
      chatClient = await clients.openWindow('/chat/');
    }
    // Message the client:
    chatClient.postMessage("New chat messages!");
  }());
});

规范

规范	状态	注释
服务工作者 The definition of 'Clients' in that specification.	工作草案	初始定义

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
`Clients`	Chrome 40	Edge ≤79	Firefox 44 注意事项 44 注意事项 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE 不支持 No	Opera 27	Safari 不支持 No	WebView Android 40	Chrome Android 40	Firefox Android 44	Opera Android 27	Safari iOS 不支持 No	Samsung Internet Android 4.0
`claim`	Chrome 42	Edge ≤79	Firefox 44 注意事项 44 注意事项 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE 不支持 No	Opera 29	Safari 不支持 No	WebView Android 42	Chrome Android 42	Firefox Android 44	Opera Android 29	Safari iOS 不支持 No	Samsung Internet Android 4.0
`get`	Chrome 51	Edge ≤79	Firefox 45 注意事项 45 注意事项 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE 不支持 No	Opera 38	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 51	Firefox Android 45	Opera Android 41	Safari iOS 不支持 No	Samsung Internet Android 5.0
`matchAll`	Chrome 47 注意事项 47 注意事项 `Client` objects returned in most recent focus order.	Edge ≤79 注意事项 ≤79 注意事项 `Client` objects returned in most recent focus order.	Firefox 44 注意事项 44 注意事项 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API. 54 注意事项 `Client` objects returned in most recent focus order.	IE 不支持 No	Opera 32	Safari 不支持 No	WebView Android 47 注意事项 47 注意事项 `Client` objects returned in most recent focus order.	Chrome Android 47 注意事项 47 注意事项 `Client` objects returned in most recent focus order.	Firefox Android 44 44 54 注意事项 `Client` objects returned in most recent focus order.	Opera Android 32	Safari iOS 不支持 No	Samsung Internet Android 4.0 注意事项 4.0 注意事项 `Client` objects returned in most recent focus order.
`openWindow`	Chrome 40 40 42 注意事项 Can only open URLs on the same origin. 43 注意事项 Can open any URL. 51 注意事项 URLs may open inside an existing browsing context provided by a standalone web app	Edge ≤79 ≤79 ≤79 注意事项 Can only open URLs on the same origin. ≤79 注意事项 Can open any URL. ≤79 注意事项 URLs may open inside an existing browsing context provided by a standalone web app	Firefox 45 注意事项 45 注意事项 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE 不支持 No	Opera 38	Safari 不支持 No	WebView Android 40 40 42 注意事项 Can only open URLs on the same origin. 43 注意事项 Can open any URL. 51 注意事项 URLs may open inside an existing browsing context provided by a standalone web app	Chrome Android 40 40 42 注意事项 Can only open URLs on the same origin. 43 注意事项 Can open any URL. 51 注意事项 URLs may open inside an existing browsing context provided by a standalone web app	Firefox Android 45	Opera Android 41	Safari iOS 不支持 No	Samsung Internet Android 4.0 4.0 5.0 注意事项 URLs may open inside an existing browsing context provided by a standalone web app

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方法

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规范

浏览器兼容性

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另请参阅

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