Home | History | Annotate | Download | only in pepper 
      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 #include "chrome/renderer/pepper/pepper_flash_font_file_host.h"
      6 
      7 #include "build/build_config.h"
      8 #include "content/public/renderer/renderer_ppapi_host.h"
      9 #include "ppapi/c/pp_errors.h"
     10 #include "ppapi/host/dispatch_host_message.h"
     11 #include "ppapi/host/host_message_context.h"
     12 #include "ppapi/host/ppapi_host.h"
     13 #include "ppapi/proxy/ppapi_messages.h"
     14 #include "ppapi/proxy/serialized_structs.h"
     15 
     16 #if defined(OS_LINUX) || defined(OS_OPENBSD)
     17 #include "content/public/common/child_process_sandbox_support_linux.h"
     18 #endif
     19 
     20 PepperFlashFontFileHost::PepperFlashFontFileHost(
     21     content::RendererPpapiHost* host,
     22     PP_Instance instance,
     23     PP_Resource resource,
     24     const ppapi::proxy::SerializedFontDescription& description,
     25     PP_PrivateFontCharset charset)
     26     : ResourceHost(host->GetPpapiHost(), instance, resource),
     27       renderer_ppapi_host_(host),
     28       fd_(-1) {
     29 #if defined(OS_LINUX) || defined(OS_OPENBSD)
     30   fd_ = content::MatchFontWithFallback(
     31       description.face.c_str(),
     32       description.weight >= PP_BROWSERFONT_TRUSTED_WEIGHT_BOLD,
     33       description.italic,
     34       charset,
     35       PP_BROWSERFONT_TRUSTED_FAMILY_DEFAULT);
     36 #endif  // defined(OS_LINUX) || defined(OS_OPENBSD)
     37 }
     38 
     39 PepperFlashFontFileHost::~PepperFlashFontFileHost() {}
     40 
     41 int32_t PepperFlashFontFileHost::OnResourceMessageReceived(
     42     const IPC::Message& msg,
     43     ppapi::host::HostMessageContext* context) {
     44   PPAPI_BEGIN_MESSAGE_MAP(PepperFlashFontFileHost, msg)
     45     PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_FlashFontFile_GetFontTable,
     46                                       OnGetFontTable)
     47   PPAPI_END_MESSAGE_MAP()
     48   return PP_ERROR_FAILED;
     49 }
     50 
     51 int32_t PepperFlashFontFileHost::OnGetFontTable(
     52     ppapi::host::HostMessageContext* context,
     53     uint32_t table) {
     54   std::string contents;
     55   int32_t result = PP_ERROR_FAILED;
     56 #if defined(OS_LINUX) || defined(OS_OPENBSD)
     57   if (fd_ != -1) {
     58     size_t length = 0;
     59     if (content::GetFontTable(fd_, table, 0 /* offset */, NULL, &length)) {
     60       contents.resize(length);
     61       uint8_t* contents_ptr =
     62           reinterpret_cast<uint8_t*>(const_cast<char*>(contents.c_str()));
     63       if (content::GetFontTable(
     64               fd_, table, 0 /* offset */, contents_ptr, &length)) {
     65         result = PP_OK;
     66       } else {
     67         contents.clear();
     68       }
     69     }
     70   }
     71 #endif  // defined(OS_LINUX) || defined(OS_OPENBSD)
     72 
     73   context->reply_msg = PpapiPluginMsg_FlashFontFile_GetFontTableReply(contents);
     74   return result;
     75 }
     76