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// Copyright 2013 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_API_IMAGE_WRITER_PRIVATE_OPERATION_MANAGER_H_
#define CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_OPERATION_MANAGER_H_
#include <map>
#include <string>
#include "base/bind.h"
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/scoped_observer.h"
#include "chrome/browser/extensions/api/image_writer_private/image_writer_private_api.h"
#include "chrome/browser/extensions/api/image_writer_private/operation.h"
#include "chrome/common/extensions/api/image_writer_private.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "extensions/browser/browser_context_keyed_api_factory.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/extension_registry_observer.h"
#include "extensions/common/extension_id.h"
#include "url/gurl.h"
namespace image_writer_api = extensions::api::image_writer_private;
namespace content {
class BrowserContext;
}
namespace extensions {
namespace image_writer {
class Operation;
// Manages image writer operations for the current profile. Including clean-up
// and message routing.
class OperationManager : public BrowserContextKeyedAPI,
public content::NotificationObserver,
public extensions::ExtensionRegistryObserver,
public base::SupportsWeakPtr<OperationManager> {
public:
explicit OperationManager(content::BrowserContext* context);
~OperationManager() override;
void Shutdown() override;
// Starts a WriteFromUrl operation.
void StartWriteFromUrl(const ExtensionId& extension_id,
GURL url,
const std::string& hash,
const std::string& device_path,
Operation::StartWriteCallback callback);
// Starts a WriteFromFile operation.
void StartWriteFromFile(const ExtensionId& extension_id,
const base::FilePath& path,
const std::string& device_path,
Operation::StartWriteCallback callback);
// Cancels the extensions current operation if any.
void CancelWrite(const ExtensionId& extension_id,
Operation::CancelWriteCallback callback);
// Starts a write that removes the partition table.
void DestroyPartitions(const ExtensionId& extension_id,
const std::string& device_path,
Operation::StartWriteCallback callback);
// Callback for progress events.
virtual void OnProgress(const ExtensionId& extension_id,
image_writer_api::Stage stage,
int progress);
// Callback for completion events.
virtual void OnComplete(const ExtensionId& extension_id);
// Callback for error events.
virtual void OnError(const ExtensionId& extension_id,
image_writer_api::Stage stage,
int progress,
const std::string& error_message);
// BrowserContextKeyedAPI
static BrowserContextKeyedAPIFactory<OperationManager>* GetFactoryInstance();
static OperationManager* Get(content::BrowserContext* context);
private:
static const char* service_name() {
return "OperationManager";
}
// NotificationObserver implementation.
void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
// ExtensionRegistryObserver implementation.
void OnExtensionUnloaded(content::BrowserContext* browser_context,
const Extension* extension,
UnloadedExtensionReason reason) override;
Operation* GetOperation(const ExtensionId& extension_id);
void DeleteOperation(const ExtensionId& extension_id);
// Accessor to the associated profile download folder
base::FilePath GetAssociatedDownloadFolder();
friend class BrowserContextKeyedAPIFactory<OperationManager>;
typedef std::map<ExtensionId, scoped_refptr<Operation> > OperationMap;
content::BrowserContext* browser_context_;
OperationMap operations_;
content::NotificationRegistrar registrar_;
// Listen to extension unloaded notification.
ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
extension_registry_observer_{this};
base::WeakPtrFactory<OperationManager> weak_factory_{this};
DISALLOW_COPY_AND_ASSIGN(OperationManager);
};
} // namespace image_writer
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_OPERATION_MANAGER_H_
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