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/basictypes.h" 9 #include "base/callback_forward.h" 10 #include "base/memory/scoped_ptr.h" 11 #include "components/browser_context_keyed_service/browser_context_keyed_service.h" 12 13 class ChromeDownloadManagerDelegate; 14 class DownloadHistory; 15 class DownloadUIController; 16 class ExtensionDownloadsEventRouter; 17 class Profile; 18 19 namespace content { 20 class DownloadManager; 21 } 22 23 // Owning class for ChromeDownloadManagerDelegate. 24 class DownloadService : public BrowserContextKeyedService { 25 public: 26 explicit DownloadService(Profile* profile); 27 virtual ~DownloadService(); 28 29 // Get the download manager delegate, creating it if it doesn't already exist. 30 ChromeDownloadManagerDelegate* GetDownloadManagerDelegate(); 31 32 // Get the interface to the history system. Returns NULL if profile is 33 // incognito or if the DownloadManager hasn't been created yet or if there is 34 // no HistoryService for profile. 35 DownloadHistory* GetDownloadHistory(); 36 37 #if !defined(OS_ANDROID) 38 ExtensionDownloadsEventRouter* GetExtensionEventRouter() { 39 return extension_event_router_.get(); 40 } 41 #endif 42 43 // Has a download manager been created? 44 bool HasCreatedDownloadManager(); 45 46 // Number of non-malicious downloads associated with this instance of the 47 // service. 48 int NonMaliciousDownloadCount() const; 49 50 // Number of non-malicious downloads associated with all profiles. 51 static int NonMaliciousDownloadCountAllProfiles(); 52 53 // Cancels all in-progress downloads. 54 static void CancelAllDownloads(); 55 56 // Sets the DownloadManagerDelegate associated with this object and 57 // its DownloadManager. Takes ownership of |delegate|, and destroys 58 // the previous delegate. For testing. 59 void SetDownloadManagerDelegateForTesting( 60 scoped_ptr<ChromeDownloadManagerDelegate> delegate); 61 62 // Will be called to release references on other services as part 63 // of Profile shutdown. 64 virtual void Shutdown() OVERRIDE; 65 66 // Returns false if at least one extension has disabled the shelf, true 67 // otherwise. 68 bool IsShelfEnabled(); 69 70 private: 71 bool download_manager_created_; 72 Profile* profile_; 73 74 // ChromeDownloadManagerDelegate may be the target of callbacks from 75 // the history service/DB thread and must be kept alive for those 76 // callbacks. 77 scoped_ptr<ChromeDownloadManagerDelegate> manager_delegate_; 78 79 scoped_ptr<DownloadHistory> download_history_; 80 81 // The UI controller is responsible for observing the download manager and 82 // notifying the UI of any new downloads. Its lifetime matches that of the 83 // associated download manager. 84 scoped_ptr<DownloadUIController> download_ui_; 85 86 // On Android, GET downloads are not handled by the DownloadManager. 87 // Once we have extensions on android, we probably need the EventRouter 88 // in ContentViewDownloadDelegate which knows about both GET and POST 89 // downloads. 90 #if !defined(OS_ANDROID) 91 // The ExtensionDownloadsEventRouter dispatches download creation, change, and 92 // erase events to extensions. Like ChromeDownloadManagerDelegate, it's a 93 // chrome-level concept and its lifetime should match DownloadManager. There 94 // should be a separate EDER for on-record and off-record managers. 95 // There does not appear to be a separate ExtensionSystem for on-record and 96 // off-record profiles, so ExtensionSystem cannot own the EDER. 97 scoped_ptr<ExtensionDownloadsEventRouter> extension_event_router_; 98 #endif 99 100 DISALLOW_COPY_AND_ASSIGN(DownloadService); 101 }; 102 103 #endif // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_SERVICE_H_ 104
