1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
---
title: SharedWorkerGlobalScope
slug: Web/API/SharedWorkerGlobalScope
tags:
- API
- Interface
- Reference
- SharedWorkerGlobalScope
- Web Workers
- インターフェイス
- ウェブワーカー
translation_of: Web/API/SharedWorkerGlobalScope
---
<div>{{APIRef("Web Workers API")}}</div>
<p><strong><code>SharedWorkerGlobalScope</code></strong> オブジェクト ( {{domxref("SharedWorker")}} グローバルスコープ) は、 {{domxref("window.self","self")}} キーワードでアクセスできます。一部の追加のグローバル関数、名前空間オブジェクト、コンストラクターは、通常はワーカーのグローバルスコープに関連付けられていませんが、利用することができ、 <a href="/ja/docs/Web/JavaScript/Reference">JavaScript リファレンス</a>に列挙されています。<a href="/ja/docs/Web/API/Web_Workers_API/Functions_and_classes_available_to_workers">ワーカーで利用できる機能</a>の完全なリストを参照してください。</p>
<h2 id="Properties" name="Properties">プロパティ</h2>
<p><em>このインターフェイスは {{domxref("WorkerGlobalScope")}}、またその親の {{domxref("EventTarget")}} インターフェイスからプロパティを継承しており、したがって {{domxref("WindowTimers")}}, {{domxref("WindowBase64")}}, {{domxref("WindowEventHandlers")}} のプロパティを実装しています。</em></p>
<dl>
<dt>{{domxref("SharedWorkerGlobalScope.name")}} {{readOnlyinline}}</dt>
<dd>The name that the {{domxref("SharedWorker")}} was (optionally) given when it was created using the {{domxref("SharedWorker.SharedWorker", "SharedWorker()")}} constructor. This is mainly useful for debugging purposes.</dd>
<dt>{{domxref("SharedWorkerGlobalScope.applicationCache")}} {{readOnlyinline}} {{deprecated_inline}}</dt>
<dd>This property returns the {{domxref("ApplicationCache")}} object for the worker (see <a href="/ja/docs/Web/HTML/Using_the_application_cache">Using the application cache</a>).</dd>
</dl>
<h3 id="Properties_inherited_from_WorkerGlobalScope" name="Properties_inherited_from_WorkerGlobalScope">WorkerGlobalScope から継承しているプロパティ</h3>
<dl>
<dt>{{domxref("WorkerGlobalScope.self")}}</dt>
<dd>Returns an object reference to the <code>DedicatedWorkerGlobalScope</code> object itself.</dd>
<dt>{{domxref("WorkerGlobalScope.console")}} {{readOnlyinline}}</dt>
<dd>Returns the {{domxref("Console")}} associated with the worker.</dd>
<dt>{{domxref("WorkerGlobalScope.location")}} {{readOnlyinline}}</dt>
<dd>Returns the {{domxref("WorkerLocation")}} associated with the worker. <code>WorkerLocation</code> is a specific location object, mostly a subset of the {{domxref("Location")}} for browsing scopes, but adapted to workers.</dd>
<dt>{{domxref("WorkerGlobalScope.navigator")}} {{readOnlyinline}}</dt>
<dd>Returns the {{domxref("WorkerNavigator")}} associated with the worker. <code>WorkerNavigator</code> is a specific navigator object, mostly a subset of the {{domxref("Navigator")}} for browsing scopes, but adapted to workers.</dd>
<dt>{{domxref("WorkerGlobalScope.performance")}} {{readOnlyinline}} {{Non-standard_inline}}</dt>
<dd>Returns the {{domxref("Performance")}} object associated with the worker, which is a regular performance object, but with a subset of its properties and methods available.</dd>
</dl>
<h3 id="Event_handlers" name="Event_handlers">イベントハンドラー</h3>
<p><em>This interface inherits event handlers from the {{domxref("WorkerGlobalScope")}} interface, and its parent {{domxref("EventTarget")}}, and therefore implements event handlers from {{domxref("WindowTimers")}}, {{domxref("WindowBase64")}}, and {{domxref("WindowEventHandlers")}}.</em></p>
<dl>
<dt>{{domxref("SharedWorkerGlobalScope.onconnect")}}</dt>
<dd>Is an {{event("Event_handlers", "event handler")}} representing the code to be called when the {{event("connect")}} event is raised — that is, when a {{domxref("MessagePort")}} connection is opened between the associated {{domxref("SharedWorker")}} and the main thread.</dd>
</dl>
<h2 id="Methods" name="Methods">メソッド</h2>
<p><em>This interface inherits methods from the {{domxref("WorkerGlobalScope")}} interface, and its parent {{domxref("EventTarget")}}, and therefore implements methods from {{domxref("WindowTimers")}}, {{domxref("WindowBase64")}}, and {{domxref("WindowEventHandlers")}}.</em></p>
<dl>
<dt>{{domxref("SharedWorkerGlobalScope.close()")}}</dt>
<dd>Discards any tasks queued in the <code>SharedWorkerGlobalScope</code>'s event loop, effectively closing this particular scope.</dd>
</dl>
<h3 id="Inherited_from_WorkerGlobalScope" name="Inherited_from_WorkerGlobalScope">WorkerGlobalScope から継承したもの</h3>
<dl>
<dt>{{domxref("WorkerGlobalScope.close()")}} {{deprecated_inline}}</dt>
<dd>Discards any tasks queued in the <code>WorkerGlobalScope</code>'s event loop, effectively closing this particular scope.</dd>
<dt>{{domxref("WorkerGlobalScope.dump()")}} {{non-standard_inline}}</dt>
<dd>Allows you to write a message to stdout — i.e. in your terminal. This is the same as Firefox's {{domxref("window.dump")}}, but for workers.</dd>
<dt>{{domxref("WorkerGlobalScope.importScripts()")}}</dt>
<dd>Imports one or more scripts into the worker's scope. You can specify as many as you'd like, separated by commas. For example:<code> importScripts('foo.js', 'bar.js');</code></dd>
</dl>
<h3 id="Implemented_from_other_places" name="Implemented_from_other_places">他の場所から実装したもの</h3>
<dl>
<dt>{{domxref("WindowBase64.atob()")}}</dt>
<dd>Decodes a string of data which has been encoded using base-64 encoding.</dd>
<dt>{{domxref("WindowBase64.btoa()")}}</dt>
<dd>Creates a base-64 encoded ASCII string from a string of binary data.</dd>
<dt>{{domxref("WindowTimers.clearInterval()")}}</dt>
<dd>Cancels the repeated execution set using {{domxref("WindowTimers.setInterval()")}}.</dd>
<dt>{{domxref("WindowTimers.clearTimeout()")}}</dt>
<dd>Cancels the repeated execution set using {{domxref("WindowTimers.setTimeout()")}}.</dd>
<dt>{{domxref("WindowTimers.setInterval()")}}</dt>
<dd>Schedules the execution of a function every X milliseconds.</dd>
<dt>{{domxref("WindowTimers.setTimeout()")}}</dt>
<dd>Sets a delay for executing a function.</dd>
</dl>
<h2 id="Events" name="Events">イベント</h2>
<p>Listen to this event using <code><a href="/ja/docs/Web/API/EventTarget/addEventListener">addEventListener()</a></code> or by assigning an event listener to the <code>on<em>eventname</em></code> property of this interface.</p>
<dl>
<dt><code><a href="/ja/docs/Web/API/SharedWorkerGlobalScope/connect_event">connect</a></code></dt>
<dd>Fired on shared workers when a new client connects.<br>
Also available via the <code><a href="/ja/docs/Web/API/SharedWorkerGlobalScope/onconnect">onconnect</a></code> property.</dd>
</dl>
<h2 id="Specifications" name="Specifications">仕様書</h2>
<table class="standard-table">
<thead>
<tr>
<th scope="col">仕様書</th>
<th scope="col">状態</th>
<th scope="col">備考</th>
</tr>
</thead>
<tbody>
<tr>
<td>{{SpecName('HTML WHATWG', '#sharedworkerglobalscope', 'SharedWorkerGlobalScope')}}</td>
<td>{{Spec2('HTML WHATWG')}}</td>
<td></td>
</tr>
</tbody>
</table>
<h2 id="Browser_compatibility" name="Browser_compatibility">ブラウザーの互換性</h2>
<p>{{Compat("api.SharedWorkerGlobalScope")}}</p>
<h2 id="See_also" name="See_also">関連情報</h2>
<ul>
<li>{{domxref("SharedWorker")}}</li>
<li>{{domxref("WorkerGlobalScope")}}</li>
<li><a href="/ja/docs/Web/API/Web_Workers_API/Using_web_workers">ウェブワーカーの使用</a></li>
<li><a href="/ja/docs/Web/Guide/Needs_categorization/Functions_available_to_workers">ワーカーで使用できる関数</a></li>
</ul>
|
