ppapi/proxy/ppb_url_loader_proxy.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 PPAPI_PPB_URL_LOADER_PROXY_H_
   6 #define PPAPI_PPB_URL_LOADER_PROXY_H_
   7
   8 #include "ppapi/c/pp_completion_callback.h"
   9 #include "ppapi/c/pp_instance.h"
  10 #include "ppapi/c/pp_module.h"
  11 #include "ppapi/c/pp_resource.h"
  12 #include "ppapi/c/pp_size.h"
  13 #include "ppapi/c/pp_var.h"
  14 #include "ppapi/c/ppb_url_loader.h"
  15 #include "ppapi/c/trusted/ppb_url_loader_trusted.h"
  16 #include "ppapi/proxy/interface_proxy.h"
  17 #include "ppapi/proxy/proxy_completion_callback_factory.h"
  18 #include "ppapi/shared_impl/host_resource.h"
  19 #include "ppapi/utility/completion_callback_factory.h"
  20
  21 namespace ppapi {
  22
  23 struct URLRequestInfoData;
  24
  25 namespace proxy {
  26
  27 struct PPBURLLoader_UpdateProgress_Params;
  28
  29 class PPB_URLLoader_Proxy : public InterfaceProxy {
  30  public:
  31   PPB_URLLoader_Proxy(Dispatcher* dispatcher);
  32   virtual ~PPB_URLLoader_Proxy();
  33
  34   static const Info* GetTrustedInfo();
  35
  36   static PP_Resource CreateProxyResource(PP_Instance instance);
  37
  38   // URLLoader objects are normally allocated by the Create function, but
  39   // they are also provided to PPP_Instance.OnMsgHandleDocumentLoad. This
  40   // function allows the proxy for DocumentLoad to create the correct plugin
  41   // proxied info for the given browser-supplied URLLoader resource ID.
  42   static PP_Resource TrackPluginResource(
  43       const HostResource& url_loader_resource);
  44
  45   // InterfaceProxy implementation.
  46   virtual bool OnMessageReceived(const IPC::Message& msg);
  47
  48   // URLLoader objects are sent from places other than just URLLoader.Create,
  49   // in particular when doing a full-frame plugin. This function does the
  50   // necessary setup in the host before the resource is sent. Call this any
  51   // time you're sending a new URLLoader that the plugin hasn't seen yet.
  52   void PrepareURLLoaderForSendingToPlugin(PP_Resource resource);
  53
  54   static const ApiID kApiID = API_ID_PPB_URL_LOADER;
  55
  56  private:
  57   // Plugin->renderer message handlers.
  58   void OnMsgCreate(PP_Instance instance,
  59                    HostResource* result);
  60   void OnMsgOpen(const HostResource& loader,
  61                  const URLRequestInfoData& data);
  62   void OnMsgFollowRedirect(const HostResource& loader);
  63   void OnMsgGetResponseInfo(const HostResource& loader,
  64                             HostResource* result);
  65   void OnMsgReadResponseBody(const HostResource& loader,
  66                              int32_t bytes_to_read);
  67   void OnMsgFinishStreamingToFile(const HostResource& loader);
  68   void OnMsgClose(const HostResource& loader);
  69   void OnMsgGrantUniversalAccess(const HostResource& loader);
  70
  71   // Renderer->plugin message handlers.
  72   void OnMsgUpdateProgress(
  73       const PPBURLLoader_UpdateProgress_Params& params);
  74   void OnMsgReadResponseBodyAck(const IPC::Message& message);
  75   void OnMsgCallbackComplete(const HostResource& host_resource, int32_t result);
  76
  77   // Handles callbacks for read complete messages. Takes ownership of the
  78   // message pointer.
  79   void OnReadCallback(int32_t result, IPC::Message* message);
  80
  81   // Handles callback for everything but reads.
  82   void OnCallback(int32_t result, const HostResource& resource);
  83
  84   ProxyCompletionCallbackFactory<PPB_URLLoader_Proxy> callback_factory_;
  85 };
  86
  87 }  // namespace proxy
  88 }  // namespace ppapi
  89
  90 #endif  // PPAPI_PPB_URL_LOADER_PROXY_H_