content/browser/media/android/media_resource_getter_impl.h

   1 // Copyright 2013 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 CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_RESOURCE_GETTER_IMPL_H_
   6 #define CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_RESOURCE_GETTER_IMPL_H_
   7
   8 #include <jni.h>
   9 #include <string>
  10
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/synchronization/waitable_event.h"
  14 #include "media/base/android/media_resource_getter.h"
  15 #include "net/cookies/canonical_cookie.h"
  16
  17 namespace fileapi {
  18 class FileSystemContext;
  19 }
  20
  21 namespace net {
  22 class URLRequestContextGetter;
  23 }
  24
  25 namespace content {
  26
  27 class BrowserContext;
  28 class ResourceContext;
  29
  30 // This class implements media::MediaResourceGetter to retrieve resources
  31 // asynchronously on the UI thread.
  32 class MediaResourceGetterImpl : public media::MediaResourceGetter {
  33  public:
  34   // Construct a MediaResourceGetterImpl object. |browser_context| and
  35   // |renderer_id| are passed to retrieve the CookieStore.
  36   // |file_system_context| are used to get the platform path.
  37   MediaResourceGetterImpl(BrowserContext* browser_context,
  38                           fileapi::FileSystemContext* file_system_context,
  39                           int renderer_id, int routing_id);
  40   virtual ~MediaResourceGetterImpl();
  41
  42   // media::MediaResourceGetter implementation.
  43   // Must be called on the UI thread.
  44   virtual void GetCookies(const GURL& url,
  45                           const GURL& first_party_for_cookies,
  46                           const GetCookieCB& callback) OVERRIDE;
  47   virtual void GetPlatformPathFromURL(
  48       const GURL& url,
  49       const GetPlatformPathCB& callback) OVERRIDE;
  50   virtual void ExtractMediaMetadata(
  51       const std::string& url, const std::string& cookies,
  52       const std::string& user_agent,
  53       const ExtractMediaMetadataCB& callback) OVERRIDE;
  54
  55   static bool RegisterMediaResourceGetter(JNIEnv* env);
  56
  57  private:
  58   // Called when GetCookies() finishes.
  59   void GetCookiesCallback(
  60       const GetCookieCB& callback, const std::string& cookies);
  61
  62   // Called when GetPlatformPathFromFileSystemURL() finishes.
  63   void GetPlatformPathCallback(
  64       const GetPlatformPathCB& callback, const std::string& platform_path);
  65
  66   // BrowserContext to retrieve URLRequestContext and ResourceContext.
  67   BrowserContext* browser_context_;
  68
  69   // FileSystemContext to be used on FILE thread.
  70   fileapi::FileSystemContext* file_system_context_;
  71
  72   // Render process id, used to check whether the process can access cookies.
  73   int renderer_id_;
  74
  75   // Routing id for the render view, used to check tab specific cookie policy.
  76   int routing_id_;
  77
  78   // NOTE: Weak pointers must be invalidated before all other member variables.
  79   base::WeakPtrFactory<MediaResourceGetterImpl> weak_factory_;
  80
  81   DISALLOW_COPY_AND_ASSIGN(MediaResourceGetterImpl);
  82 };
  83
  84 }  // namespace content
  85
  86 #endif  // CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_RESOURCE_GETTER_IMPL_H_