chrome/browser/extensions/api/webstore/webstore_api.h

   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.
   4
   5 #ifndef CHROME_BROWSER_EXTENSIONS_API_WEBSTORE_WEBSTORE_API_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_WEBSTORE_WEBSTORE_API_H_
   7
   8 #include <list>
   9 #include <string>
  10
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/scoped_observer.h"
  13 #include "chrome/browser/extensions/install_observer.h"
  14 #include "chrome/common/extensions/api/webstore/webstore_api_constants.h"
  15 #include "extensions/browser/browser_context_keyed_api_factory.h"
  16 #include "extensions/browser/event_router.h"
  17
  18 namespace base {
  19 class ListValue;
  20 }
  21
  22 namespace content {
  23 class BrowserContext;
  24 }
  25
  26 namespace IPC {
  27 class Sender;
  28 }
  29
  30 namespace extensions {
  31 class InstallTracker;
  32
  33 class WebstoreAPI : public BrowserContextKeyedAPI,
  34                     public InstallObserver {
  35  public:
  36   explicit WebstoreAPI(content::BrowserContext* browser_context);
  37   virtual ~WebstoreAPI();
  38
  39   static WebstoreAPI* Get(content::BrowserContext* browser_context);
  40
  41   // Called whenever an inline extension install is started. Examines
  42   // |listener_mask| to determine if a download progress or install
  43   // stage listener should be added.
  44   // |routing_id| refers to the id to which we send any return messages;
  45   // |ipc_sender| is the sender through which we send them (typically this
  46   // is the TabHelper which started the inline install).
  47   void OnInlineInstallStart(int routing_id,
  48                             IPC::Sender* ipc_sender,
  49                             const std::string& extension_id,
  50                             int listener_mask);
  51
  52   // Called when an inline extension install finishes. Removes any listeners
  53   // related to the |routing_id|-|extension_id| pair.
  54   void OnInlineInstallFinished(int routing_id, const std::string& extension_id);
  55
  56   // BrowserContextKeyedAPI implementation.
  57   static BrowserContextKeyedAPIFactory<WebstoreAPI>* GetFactoryInstance();
  58
  59  private:
  60   friend class BrowserContextKeyedAPIFactory<WebstoreAPI>;
  61
  62   // A simple struct to hold our listeners' information for each observed
  63   // install.
  64   struct ObservedInstallInfo;
  65   typedef std::list<ObservedInstallInfo> ObservedInstallInfoList;
  66
  67   // Sends an installation stage update message if we are observing
  68   // the extension's install.
  69   void SendInstallMessageIfObserved(const std::string& extension_id,
  70                                     api::webstore::InstallStage install_stage);
  71
  72   // Removes listeners for the given |extension_id|-|routing_id| pair from
  73   // |listeners|.
  74   void RemoveListeners(int routing_id,
  75                        const std::string& extension_id,
  76                        ObservedInstallInfoList* listeners);
  77
  78   // InstallObserver implementation.
  79   virtual void OnBeginExtensionDownload(const std::string& extension_id)
  80       OVERRIDE;
  81   virtual void OnDownloadProgress(const std::string& extension_id,
  82                                   int percent_downloaded) OVERRIDE;
  83   virtual void OnBeginCrxInstall(const std::string& extension_id) OVERRIDE;
  84   virtual void OnShutdown() OVERRIDE;
  85
  86   // BrowserContextKeyedService implementation.
  87   virtual void Shutdown() OVERRIDE;
  88
  89   // BrowserContextKeyedAPI implementation.
  90   static const char* service_name() { return "WebstoreAPI"; }
  91   static const bool kServiceIsNULLWhileTesting = true;
  92
  93   ObservedInstallInfoList download_progress_listeners_;
  94   ObservedInstallInfoList install_stage_listeners_;
  95   content::BrowserContext* browser_context_;
  96   scoped_ptr<ScopedObserver<InstallTracker, InstallObserver> >
  97       install_observer_;
  98
  99   DISALLOW_COPY_AND_ASSIGN(WebstoreAPI);
 100 };
 101
 102 }  // namespace extensions
 103
 104 #endif  // CHROME_BROWSER_EXTENSIONS_API_WEBSTORE_WEBSTORE_API_H_