athena/main/athena_renderer_pdf_helper.cc

   1 // Copyright 2014 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 #include "athena/main/athena_renderer_pdf_helper.h"
   6
   7 #include "components/pdf/renderer/pepper_pdf_host.h"
   8 #include "content/public/renderer/renderer_ppapi_host.h"
   9 #include "ppapi/host/host_factory.h"
  10 #include "ppapi/host/ppapi_host.h"
  11 #include "ppapi/host/resource_host.h"
  12 #include "ppapi/proxy/ppapi_messages.h"
  13
  14 namespace athena {
  15
  16 namespace {
  17
  18 class PDFRendererHostFactory : public ppapi::host::HostFactory {
  19  public:
  20   explicit PDFRendererHostFactory(content::RendererPpapiHost* host)
  21       : host_(host) {}
  22   virtual ~PDFRendererHostFactory() {}
  23
  24  private:
  25   // ppapi::host::HostFactory:
  26   virtual scoped_ptr<ppapi::host::ResourceHost> CreateResourceHost(
  27       ppapi::host::PpapiHost* host,
  28       const ppapi::proxy::ResourceMessageCallParams& params,
  29       PP_Instance instance,
  30       const IPC::Message& message) OVERRIDE {
  31     DCHECK_EQ(host_->GetPpapiHost(), host);
  32     // Make sure the plugin is giving us a valid instance for this resource.
  33     if (!host_->IsValidInstance(instance))
  34       return scoped_ptr<ppapi::host::ResourceHost>();
  35
  36     if (host_->GetPpapiHost()->permissions().HasPermission(
  37             ppapi::PERMISSION_PRIVATE)) {
  38       switch (message.type()) {
  39         case PpapiHostMsg_PDF_Create::ID:
  40           return scoped_ptr<ppapi::host::ResourceHost>(
  41               new pdf::PepperPDFHost(host_, instance, params.pp_resource()));
  42
  43         case PpapiHostMsg_FlashFontFile_Create::ID:
  44           return scoped_ptr<ppapi::host::ResourceHost>(
  45               new ppapi::host::ResourceHost(host_->GetPpapiHost(),
  46                                             instance,
  47                                             params.pp_resource()));
  48       }
  49     }
  50
  51     return scoped_ptr<ppapi::host::ResourceHost>();
  52   }
  53
  54   // Not owned by this object.
  55   content::RendererPpapiHost* host_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(PDFRendererHostFactory);
  58 };
  59
  60 }  // namespace
  61
  62 AthenaRendererPDFHelper::AthenaRendererPDFHelper(content::RenderFrame* frame)
  63     : content::RenderFrameObserver(frame) {}
  64
  65 AthenaRendererPDFHelper::~AthenaRendererPDFHelper() {}
  66
  67 void AthenaRendererPDFHelper::DidCreatePepperPlugin(
  68     content::RendererPpapiHost* host) {
  69   host->GetPpapiHost()->AddHostFactoryFilter(
  70       scoped_ptr<ppapi::host::HostFactory>(new PDFRendererHostFactory(host)));
  71 }
  72
  73 }  // namespace athena