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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_EXTENSIONS_SHARED_USER_SCRIPT_MASTER_H_
#define CHROME_BROWSER_EXTENSIONS_SHARED_USER_SCRIPT_MASTER_H_
#include <set>
#include "base/scoped_observer.h"
#include "extensions/browser/extension_registry_observer.h"
#include "extensions/browser/extension_user_script_loader.h"
#include "extensions/common/extension.h"
#include "extensions/common/user_script.h"
namespace content {
class BrowserContext;
}
class Profile;
namespace extensions {
class ExtensionRegistry;
// Manages statically-defined user scripts for all extensions. Owns a
// UserScriptLoader to which file loading and shared memory management
// operations are delegated.
class SharedUserScriptMaster : public ExtensionRegistryObserver {
public:
explicit SharedUserScriptMaster(Profile* profile);
~SharedUserScriptMaster() override;
// Provides access to loader state method: scripts_ready().
bool scripts_ready() const { return loader_.scripts_ready(); }
private:
// ExtensionRegistryObserver implementation.
void OnExtensionLoaded(content::BrowserContext* browser_context,
const Extension* extension) override;
void OnExtensionUnloaded(content::BrowserContext* browser_context,
const Extension* extension,
UnloadedExtensionInfo::Reason reason) override;
// Gets an extension's scripts' metadata; i.e., gets a list of UserScript
// objects that contains script info, but not the contents of the scripts.
const std::set<UserScript> GetScriptsMetadata(const Extension* extension);
// Script loader that handles loading contents of scripts into shared memory
// and notifying renderers of scripts in shared memory.
ExtensionUserScriptLoader loader_;
// The profile for which the scripts managed here are installed.
Profile* profile_;
ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
extension_registry_observer_;
DISALLOW_COPY_AND_ASSIGN(SharedUserScriptMaster);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_SHARED_USER_SCRIPT_MASTER_H_
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