Download driver for components/download.

content/public/browser/download_manager.h

 // Copyright (c) 2012 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.
 //
 // The DownloadManager object manages the process of downloading, including
 // updates to the history system and providing the information for displaying
 // the downloads view in the Destinations tab. There is one DownloadManager per
 // active browser context in Chrome.
 //
 // Download observers:
@@ skipping 66 matching lines @@
     // doing large amounts of work in OnDownloadCreated().  TODO(<whoever>):
     // When we've fully specified the possible states of the DownloadItem in
     // download_item.h, we should remove the caveat above.
     virtual void OnDownloadCreated(
         DownloadManager* manager, DownloadItem* item) {}
 
     // A SavePackage has successfully finished.
     virtual void OnSavePackageSuccessfullyFinished(
         DownloadManager* manager, DownloadItem* item) {}
 
+    // Called when the download manager has finished loading the data.
+    virtual void OnManagerInitialized() {}
+
     // Called when the DownloadManager is being destroyed to prevent Observers
     // from calling back to a stale pointer.
     virtual void ManagerGoingDown(DownloadManager* manager) {}
 
    protected:
     virtual ~Observer() {}
   };
 
   typedef std::vector<DownloadItem*> DownloadVector;
 
@@ skipping 51 matching lines @@
       int64_t total_bytes,
       const std::string& hash,
       DownloadItem::DownloadState state,
       DownloadDangerType danger_type,
       DownloadInterruptReason interrupt_reason,
       bool opened,
       base::Time last_access_time,
       bool transient,
       const std::vector<DownloadItem::ReceivedSlice>& received_slices) = 0;
 
+  // Called when download manager has loaded all the data.
+  virtual void PostInitialization() = 0;
+
+  // Returns if the manager has been initialized and loaded all the data.
+  virtual bool IsManagerInitialized() const = 0;
+
   // The number of in progress (including paused) downloads.
   // Performance note: this loops over all items. If profiling finds that this
   // is too slow, use an AllDownloadItemNotifier to count in-progress items.
   virtual int InProgressCount() const = 0;
 
   // The number of in progress (including paused) downloads.
   // Performance note: this loops over all items. If profiling finds that this
   // is too slow, use an AllDownloadItemNotifier to count in-progress items.
   // This excludes downloads that are marked as malicious.
   virtual int NonMaliciousInProgressCount() const = 0;
@@ skipping 12 matching lines @@
   // if you need to keep track of a specific download. (http://crbug.com/593020)
   virtual DownloadItem* GetDownload(uint32_t id) = 0;
 
   // Get the download item for |guid|.
   virtual DownloadItem* GetDownloadByGuid(const std::string& guid) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DOWNLOAD_MANAGER_H_