chrome/browser/extensions/api/streams_private/streams_private_api.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_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "base/scoped_observer.h"
  12 #include "extensions/browser/browser_context_keyed_api_factory.h"
  13 #include "extensions/browser/extension_function.h"
  14 #include "extensions/browser/extension_registry_observer.h"
  15
  16 namespace content {
  17 class BrowserContext;
  18 class StreamHandle;
  19 }
  20
  21 namespace extensions {
  22 class ExtensionRegistry;
  23
  24 class StreamsPrivateAPI : public BrowserContextKeyedAPI,
  25                           public ExtensionRegistryObserver {
  26  public:
  27   // Convenience method to get the StreamsPrivateAPI for a BrowserContext.
  28   static StreamsPrivateAPI* Get(content::BrowserContext* context);
  29
  30   explicit StreamsPrivateAPI(content::BrowserContext* context);
  31   virtual ~StreamsPrivateAPI();
  32
  33   void ExecuteMimeTypeHandler(const std::string& extension_id,
  34                               const content::WebContents* web_contents,
  35                               scoped_ptr<content::StreamHandle> stream,
  36                               int64 expected_content_size);
  37
  38   // BrowserContextKeyedAPI implementation.
  39   static BrowserContextKeyedAPIFactory<StreamsPrivateAPI>* GetFactoryInstance();
  40
  41  private:
  42   friend class BrowserContextKeyedAPIFactory<StreamsPrivateAPI>;
  43   typedef std::map<std::string,
  44                    std::map<GURL,
  45                             linked_ptr<content::StreamHandle> > > StreamMap;
  46
  47   // ExtensionRegistryObserver implementation.
  48   virtual void OnExtensionUnloaded(
  49       content::BrowserContext* browser_context,
  50       const Extension* extension,
  51       UnloadedExtensionInfo::Reason reason) OVERRIDE;
  52
  53   // BrowserContextKeyedAPI implementation.
  54   static const char* service_name() {
  55     return "StreamsPrivateAPI";
  56   }
  57   static const bool kServiceIsNULLWhileTesting = true;
  58   static const bool kServiceRedirectedInIncognito = true;
  59
  60   content::BrowserContext* const browser_context_;
  61   StreamMap streams_;
  62   base::WeakPtrFactory<StreamsPrivateAPI> weak_ptr_factory_;
  63
  64   // Listen to extension unloaded notifications.
  65   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
  66       extension_registry_observer_;
  67 };
  68
  69 }  // namespace extensions
  70
  71 #endif  // CHROME_BROWSER_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_