chrome/browser/download/download_service.h

   1 // Copyright (c) 2012 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_DOWNLOAD_DOWNLOAD_SERVICE_H_
   6 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_SERVICE_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "components/keyed_service/core/keyed_service.h"
  10
  11 class ChromeDownloadManagerDelegate;
  12 class DownloadHistory;
  13 class ExtensionDownloadsEventRouter;
  14 class Profile;
  15
  16 namespace content {
  17 class DownloadManager;
  18 }
  19
  20 namespace extensions {
  21 class ExtensionDownloadsEventRouter;
  22 }
  23
  24 // Abstract base class for the download service; see DownloadServiceImpl for
  25 // implementation.
  26 class DownloadService : public KeyedService {
  27  public:
  28   DownloadService();
  29   ~DownloadService() override;
  30
  31   // Get the download manager delegate, creating it if it doesn't already exist.
  32   virtual ChromeDownloadManagerDelegate* GetDownloadManagerDelegate() = 0;
  33
  34   // Get the interface to the history system. Returns NULL if profile is
  35   // incognito or if the DownloadManager hasn't been created yet or if there is
  36   // no HistoryService for profile. Virtual for testing.
  37   virtual DownloadHistory* GetDownloadHistory() = 0;
  38
  39 #if defined(ENABLE_EXTENSIONS)
  40   virtual extensions::ExtensionDownloadsEventRouter*
  41   GetExtensionEventRouter() = 0;
  42 #endif
  43
  44   // Has a download manager been created?
  45   virtual bool HasCreatedDownloadManager() = 0;
  46
  47   // Number of non-malicious downloads associated with this instance of the
  48   // service.
  49   virtual int NonMaliciousDownloadCount() const = 0;
  50
  51   // Cancels all in-progress downloads for this profile.
  52   virtual void CancelDownloads() = 0;
  53
  54   // Number of non-malicious downloads associated with all profiles.
  55   static int NonMaliciousDownloadCountAllProfiles();
  56
  57   // Cancels all in-progress downloads for all profiles.
  58   static void CancelAllDownloads();
  59
  60   // Sets the DownloadManagerDelegate associated with this object and
  61   // its DownloadManager.  Takes ownership of |delegate|, and destroys
  62   // the previous delegate.  For testing.
  63   virtual void SetDownloadManagerDelegateForTesting(
  64       scoped_ptr<ChromeDownloadManagerDelegate> delegate) = 0;
  65
  66   // Returns false if at least one extension has disabled the shelf, true
  67   // otherwise.
  68   virtual bool IsShelfEnabled() = 0;
  69
  70  private:
  71   DISALLOW_COPY_AND_ASSIGN(DownloadService);
  72 };
  73
  74 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_SERVICE_H_