chrome/browser/media/router/create_presentation_session_request.h

   1 // Copyright 2015 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_MEDIA_ROUTER_CREATE_PRESENTATION_SESSION_REQUEST_H_
   6 #define CHROME_BROWSER_MEDIA_ROUTER_CREATE_PRESENTATION_SESSION_REQUEST_H_
   7
   8 #include <string>
   9
  10 #include "chrome/browser/media/router/media_route.h"
  11 #include "chrome/browser/media/router/media_source.h"
  12 #include "content/public/browser/presentation_service_delegate.h"
  13 #include "url/gurl.h"
  14
  15 namespace content {
  16 struct PresentationError;
  17 struct PresentationSessionInfo;
  18 }  // namespace content
  19
  20 namespace media_router {
  21
  22 // Holds parameters for creating a presentation session.
  23 // A request object is created by presentation_service_delegate_impl when it
  24 // gets create-session request. The object is then passed to and owned by the
  25 // MediaRouterUI. |success_cb| will be invoked when create-session
  26 // succeeds, or |error_cb| will be invoked when create-session fails or
  27 // the UI closes.
  28 class CreatePresentationSessionRequest {
  29  public:
  30   using PresentationSessionSuccessCallback =
  31       base::Callback<void(const content::PresentationSessionInfo&,
  32                           const MediaRoute::Id&)>;
  33   using PresentationSessionErrorCallback =
  34       content::PresentationServiceDelegate::PresentationSessionErrorCallback;
  35
  36   // |presentation_url|: The presentation URL of the request. Must be a valid
  37   //                     URL.
  38   // |frame_url|: The URL of the frame that initiated the presentation request.
  39   // |success_cb|: Callback to invoke when the request succeeds. Must be valid.
  40   // |erorr_cb|: Callback to invoke when the request fails. Must be valid.
  41   CreatePresentationSessionRequest(
  42       const std::string& presentation_url,
  43       const GURL& frame_url,
  44       const PresentationSessionSuccessCallback& success_cb,
  45       const PresentationSessionErrorCallback& error_cb);
  46   ~CreatePresentationSessionRequest();
  47
  48   const MediaSource& media_source() const { return media_source_; }
  49   const GURL& frame_url() const { return frame_url_; }
  50
  51   // Invokes |success_cb_| or |error_cb_| with the given arguments.
  52   // These functions can only be invoked once per instance. It is an error
  53   // to invoke these functions more than once.
  54   void InvokeSuccessCallback(const std::string& presentation_id,
  55                              const MediaRoute::Id& route_id);
  56   void InvokeErrorCallback(const content::PresentationError& error);
  57
  58   // Handle route creation/joining response by invoking the right callback.
  59   static void HandleRouteResponse(
  60       scoped_ptr<CreatePresentationSessionRequest> presentation_request,
  61       const MediaRoute* route,
  62       const std::string& presentation_id,
  63       const std::string& error);
  64
  65  private:
  66   const MediaSource media_source_;
  67   const GURL frame_url_;
  68   PresentationSessionSuccessCallback success_cb_;
  69   PresentationSessionErrorCallback error_cb_;
  70   bool cb_invoked_;
  71
  72   DISALLOW_COPY_AND_ASSIGN(CreatePresentationSessionRequest);
  73 };
  74
  75 }  // namespace media_router
  76
  77 #endif  // CHROME_BROWSER_MEDIA_ROUTER_CREATE_PRESENTATION_SESSION_REQUEST_H_