src/chrome/browser/extensions/api/image_writer_private/operation_manager.h

   1 // Copyright 2013 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.
   4
   5 #ifndef CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_OPERATION_MANAGER_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_OPERATION_MANAGER_H_
   7
   8 #include <map>
   9 #include <string>
  10 #include "base/bind.h"
  11 #include "base/callback.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/stl_util.h"
  14 #include "base/timer/timer.h"
  15 #include "chrome/browser/extensions/api/image_writer_private/image_writer_private_api.h"
  16 #include "chrome/browser/extensions/api/image_writer_private/operation.h"
  17 #include "chrome/common/extensions/api/image_writer_private.h"
  18 #include "content/public/browser/notification_observer.h"
  19 #include "content/public/browser/notification_registrar.h"
  20 #include "extensions/browser/browser_context_keyed_api_factory.h"
  21 #include "url/gurl.h"
  22
  23 namespace image_writer_api = extensions::api::image_writer_private;
  24
  25 class Profile;
  26
  27 namespace content {
  28 class BrowserContext;
  29 }
  30
  31 namespace extensions {
  32 namespace image_writer {
  33
  34 class Operation;
  35
  36 // Manages image writer operations for the current profile.  Including clean-up
  37 // and message routing.
  38 class OperationManager : public BrowserContextKeyedAPI,
  39                          public content::NotificationObserver,
  40                          public base::SupportsWeakPtr<OperationManager> {
  41  public:
  42   typedef std::string ExtensionId;
  43
  44   explicit OperationManager(content::BrowserContext* context);
  45   virtual ~OperationManager();
  46
  47   virtual void Shutdown() OVERRIDE;
  48
  49   // Starts a WriteFromUrl operation.
  50   void StartWriteFromUrl(const ExtensionId& extension_id,
  51                          GURL url,
  52                          const std::string& hash,
  53                          const std::string& device_path,
  54                          const Operation::StartWriteCallback& callback);
  55
  56   // Starts a WriteFromFile operation.
  57   void StartWriteFromFile(const ExtensionId& extension_id,
  58                           const base::FilePath& path,
  59                           const std::string& device_path,
  60                           const Operation::StartWriteCallback& callback);
  61
  62   // Cancels the extensions current operation if any.
  63   void CancelWrite(const ExtensionId& extension_id,
  64                    const Operation::CancelWriteCallback& callback);
  65
  66   // Starts a write that removes the partition table.
  67   void DestroyPartitions(const ExtensionId& extension_id,
  68                          const std::string& device_path,
  69                          const Operation::StartWriteCallback& callback);
  70
  71   // Callback for progress events.
  72   virtual void OnProgress(const ExtensionId& extension_id,
  73                           image_writer_api::Stage stage,
  74                           int progress);
  75   // Callback for completion events.
  76   virtual void OnComplete(const ExtensionId& extension_id);
  77
  78   // Callback for error events.
  79   virtual void OnError(const ExtensionId& extension_id,
  80                        image_writer_api::Stage stage,
  81                        int progress,
  82                        const std::string& error_message);
  83
  84   // BrowserContextKeyedAPI
  85   static BrowserContextKeyedAPIFactory<OperationManager>* GetFactoryInstance();
  86   static OperationManager* Get(content::BrowserContext* context);
  87
  88   Profile* profile() { return profile_; }
  89
  90  private:
  91
  92   static const char* service_name() {
  93     return "OperationManager";
  94   }
  95
  96   // NotificationObserver
  97   virtual void Observe(int type,
  98                        const content::NotificationSource& source,
  99                        const content::NotificationDetails& details) OVERRIDE;
 100
 101   Operation* GetOperation(const ExtensionId& extension_id);
 102   void DeleteOperation(const ExtensionId& extension_id);
 103
 104   friend class BrowserContextKeyedAPIFactory<OperationManager>;
 105   typedef std::map<ExtensionId, scoped_refptr<Operation> > OperationMap;
 106
 107   Profile* profile_;
 108   OperationMap operations_;
 109   content::NotificationRegistrar registrar_;
 110
 111   base::WeakPtrFactory<OperationManager> weak_factory_;
 112
 113   DISALLOW_COPY_AND_ASSIGN(OperationManager);
 114 };
 115
 116 }  // namespace image_writer
 117 }  // namespace extensions
 118
 119 #endif  // CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_OPERATION_MANAGER_H_