1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CHROME_BROWSER_EXTENSIONS_SHARED_USER_SCRIPT_MASTER_H_
6 #define CHROME_BROWSER_EXTENSIONS_SHARED_USER_SCRIPT_MASTER_H_
10 #include "base/scoped_observer.h"
11 #include "chrome/browser/extensions/user_script_loader.h"
12 #include "extensions/browser/extension_registry_observer.h"
13 #include "extensions/common/extension.h"
14 #include "extensions/common/user_script.h"
22 namespace extensions {
24 class ExtensionRegistry;
26 // Manages statically-defined user scripts for all extensions. Owns a
27 // UserScriptLoader to which file loading and shared memory management
28 // operations are delegated.
29 class SharedUserScriptMaster : public ExtensionRegistryObserver {
31 explicit SharedUserScriptMaster(Profile* profile);
32 virtual ~SharedUserScriptMaster();
34 // Provides access to loader state method: scripts_ready().
35 bool scripts_ready() const { return loader_.scripts_ready(); }
38 // ExtensionRegistryObserver implementation.
39 virtual void OnExtensionLoaded(content::BrowserContext* browser_context,
40 const Extension* extension) OVERRIDE;
41 virtual void OnExtensionUnloaded(
42 content::BrowserContext* browser_context,
43 const Extension* extension,
44 UnloadedExtensionInfo::Reason reason) OVERRIDE;
46 // Gets an extension's scripts' metadata; i.e., gets a list of UserScript
47 // objects that contains script info, but not the contents of the scripts.
48 const std::set<UserScript> GetScriptsMetadata(const Extension* extension);
50 // Script loader that handles loading contents of scripts into shared memory
51 // and notifying renderers of scripts in shared memory.
52 UserScriptLoader loader_;
54 // The profile for which the scripts managed here are installed.
57 ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
58 extension_registry_observer_;
60 DISALLOW_COPY_AND_ASSIGN(SharedUserScriptMaster);
63 } // namespace extensions
65 #endif // CHROME_BROWSER_EXTENSIONS_SHARED_USER_SCRIPT_MASTER_H_