chrome/browser/media/router/create_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_SESSION_REQUEST_H_
   6 #define CHROME_BROWSER_MEDIA_ROUTER_CREATE_SESSION_REQUEST_H_
   7
   8 #include <string>
   9
  10 #include "chrome/browser/media/router/media_source.h"
  11 #include "content/public/browser/presentation_service_delegate.h"
  12 #include "url/gurl.h"
  13
  14 namespace content {
  15 struct PresentationError;
  16 struct PresentationSessionInfo;
  17 }  // namespace content
  18
  19 namespace media_router {
  20
  21 // Holds parameters for creating a presentation session.
  22 // A request object is created by presentation_service_delegate_impl when it
  23 // gets create-session request. The object is then passed to and owned by the
  24 // MediaRouterUI. |success_cb| will be invoked when create-session
  25 // succeeds, or |error_cb| will be invoked when create-session fails or
  26 // the UI closes.
  27 class CreateSessionRequest {
  28  public:
  29   using PresentationSessionSuccessCallback =
  30       content::PresentationServiceDelegate::PresentationSessionSuccessCallback;
  31   using PresentationSessionErrorCallback =
  32       content::PresentationServiceDelegate::PresentationSessionErrorCallback;
  33
  34   // |presentation_url| must be valid.
  35   CreateSessionRequest(const std::string& presentation_url,
  36                        const std::string& presentation_id,
  37                        const GURL& frame_url,
  38                        const PresentationSessionSuccessCallback& success_cb,
  39                        const PresentationSessionErrorCallback& error_cb);
  40   ~CreateSessionRequest();
  41
  42   // Gets the MediaSource derived from this instance's presentation URL.
  43   const MediaSource& GetMediaSource() const { return media_source_; }
  44
  45   const GURL& frame_url() const { return frame_url_; }
  46   const content::PresentationSessionInfo& presentation_info() const {
  47     return presentation_info_;
  48   }
  49
  50   // Invokes |success_cb_| or |error_cb_| with the given arguments.
  51   // These functions can only be invoked once per instance. Further invocations
  52   // are no-op.
  53   void MaybeInvokeSuccessCallback();
  54   void MaybeInvokeErrorCallback(const content::PresentationError& error);
  55
  56  private:
  57   content::PresentationSessionInfo presentation_info_;
  58   MediaSource media_source_;
  59   GURL frame_url_;
  60   PresentationSessionSuccessCallback success_cb_;
  61   PresentationSessionErrorCallback error_cb_;
  62   bool cb_invoked_;
  63
  64   DISALLOW_COPY_AND_ASSIGN(CreateSessionRequest);
  65 };
  66
  67 }  // namespace media_router
  68
  69 #endif  // CHROME_BROWSER_MEDIA_ROUTER_CREATE_SESSION_REQUEST_H_