content/renderer/pepper/pepper_in_process_resource_creation.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 CONTENT_RENDERER_PEPPER_PEPPER_IN_PROCESS_RESOURCE_CREATION_H_
   6 #define CONTENT_RENDERER_PEPPER_PEPPER_IN_PROCESS_RESOURCE_CREATION_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "content/renderer/pepper/resource_creation_impl.h"
  11 #include "ppapi/proxy/connection.h"
  12
  13 namespace content {
  14
  15 class RendererPpapiHostImpl;
  16
  17 // This class provides creation functions for the new resources with IPC
  18 // backends that live in content/renderer/pepper.
  19 //
  20 // (See pepper_in_process_router.h for more information.)
  21 //
  22 // This is a bit confusing. The "old-style" resources live in
  23 // content/renderer/pepper and are created by the ResourceCreationImpl in that
  24 // directory. The "new-style" IPC-only resources are in ppapi/proxy and are
  25 // created by the RessourceCreationProxy in that directory.
  26 //
  27 // This class allows us to run new-style IPC-only resources in-process. We use
  28 // the PepperInProcessRouter to run it in process. But then we have a problem
  29 // with allocating the resources since src/webkit can't depend on IPC or see
  30 // our IPC backend in content. This class overrides the normal in-process
  31 // resource creation and adds in the resources that we implement in
  32 // ppapi/proxy.
  33 //
  34 // When we convert all resources to use the new-style, we can just use the
  35 // ResourceCreationProxy for all resources. This class is just glue to manage
  36 // the temporary "two different cases."
  37 class PepperInProcessResourceCreation : public ResourceCreationImpl {
  38  public:
  39   PepperInProcessResourceCreation(RendererPpapiHostImpl* host_impl,
  40                                   PepperPluginInstanceImpl* instance);
  41   virtual ~PepperInProcessResourceCreation();
  42
  43   // ResourceCreation_API implementation.
  44   virtual PP_Resource CreateBrowserFont(
  45       PP_Instance instance,
  46       const PP_BrowserFont_Trusted_Description* description) OVERRIDE;
  47   virtual PP_Resource CreateFileChooser(PP_Instance instance,
  48                                         PP_FileChooserMode_Dev mode,
  49                                         const PP_Var& accept_types) OVERRIDE;
  50   virtual PP_Resource CreateFileIO(PP_Instance instance) OVERRIDE;
  51   virtual PP_Resource CreateFileRef(PP_Instance instance,
  52                                     const ppapi::FileRefCreateInfo& create_info)
  53       OVERRIDE;
  54   virtual PP_Resource CreateFileSystem(PP_Instance instance,
  55                                        PP_FileSystemType type) OVERRIDE;
  56   virtual PP_Resource CreateGraphics2D(PP_Instance pp_instance,
  57                                        const PP_Size* size,
  58                                        PP_Bool is_always_opaque) OVERRIDE;
  59   virtual PP_Resource CreatePrinting(PP_Instance instance) OVERRIDE;
  60   virtual PP_Resource CreateTrueTypeFont(
  61       PP_Instance instance,
  62       const struct PP_TrueTypeFontDesc_Dev* desc) OVERRIDE;
  63   virtual PP_Resource CreateURLLoader(PP_Instance instance) OVERRIDE;
  64   virtual PP_Resource CreateURLRequestInfo(PP_Instance instance) OVERRIDE;
  65   virtual PP_Resource CreateWebSocket(PP_Instance instance) OVERRIDE;
  66
  67  private:
  68   // Non-owning pointer to the host for the current plugin.
  69   RendererPpapiHostImpl* host_impl_;
  70
  71   DISALLOW_COPY_AND_ASSIGN(PepperInProcessResourceCreation);
  72 };
  73
  74 }  // namespace content
  75
  76 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_IN_PROCESS_RESOURCE_CREATION_H_