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// Copyright 2015 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_UI_ASH_VPN_DELEGATE_CHROMEOS_H_
#define CHROME_BROWSER_UI_ASH_VPN_DELEGATE_CHROMEOS_H_
#include <vector>
#include "ash/system/chromeos/network/vpn_delegate.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "extensions/browser/extension_registry_observer.h"
namespace extensions {
class ExtensionRegistry;
}
// Chrome OS implementation of a delegate that provides UI code in ash with
// access to the VPN providers enabled in the primary user's profile.
class VPNDelegateChromeOS : public ash::VPNDelegate,
public extensions::ExtensionRegistryObserver,
public content::NotificationObserver {
public:
VPNDelegateChromeOS();
~VPNDelegateChromeOS() override;
// ash::VPNDelegate:
bool HaveThirdPartyVPNProviders() const override;
const std::vector<ash::VPNProvider>& GetVPNProviders() const override;
void ShowAddPage(const ash::VPNProvider::Key& key) override;
// extensions::ExtensionRegistryObserver:
void OnExtensionLoaded(content::BrowserContext* browser_context,
const extensions::Extension* extension) override;
void OnExtensionUnloaded(
content::BrowserContext* browser_context,
const extensions::Extension* extension,
extensions::UnloadedExtensionInfo::Reason reason) override;
void OnShutdown(extensions::ExtensionRegistry* registry) override;
// content::NotificationObserver:
void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
private:
// Retrieves the current list of VPN providers enabled in the primary user's
// profile and notifies observers that it has changed. Must only be called
// when a user is logged in and the primary user's extension registry is being
// observed.
void UpdateVPNProviders();
// Starts observing the primary user's extension registry to detect changes to
// the list of VPN providers enabled in the user's profile and caches the
// initial list. Must only be called when a user is logged in.
void AttachToPrimaryUserExtensionRegistry();
// The primary user's extension registry, if a user is logged in.
extensions::ExtensionRegistry* extension_registry_ = nullptr;
// A cache of the VPN providers enabled in the primary user's profile.
std::vector<ash::VPNProvider> vpn_providers_;
content::NotificationRegistrar registrar_;
base::WeakPtrFactory<VPNDelegateChromeOS> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(VPNDelegateChromeOS);
};
#endif // CHROME_BROWSER_UI_ASH_VPN_DELEGATE_CHROMEOS_H_
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