src/ppapi/proxy/truetype_font_resource.cc

   1 // Copyright (c) 2013 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 "ppapi/proxy/truetype_font_resource.h"
   6
   7 #include "base/bind.h"
   8 #include "ipc/ipc_message.h"
   9 #include "ppapi/c/pp_errors.h"
  10 #include "ppapi/proxy/ppapi_messages.h"
  11 #include "ppapi/shared_impl/array_writer.h"
  12 #include "ppapi/shared_impl/ppapi_globals.h"
  13 #include "ppapi/shared_impl/resource_tracker.h"
  14 #include "ppapi/shared_impl/var.h"
  15 #include "ppapi/thunk/enter.h"
  16
  17 using ppapi::thunk::EnterResourceNoLock;
  18 using ppapi::thunk::PPB_TrueTypeFont_API;
  19
  20 namespace {
  21
  22 }  // namespace
  23
  24 namespace ppapi {
  25 namespace proxy {
  26
  27 TrueTypeFontResource::TrueTypeFontResource(
  28     Connection connection,
  29     PP_Instance instance,
  30     const PP_TrueTypeFontDesc_Dev& desc)
  31     : PluginResource(connection, instance) {
  32   SerializedTrueTypeFontDesc serialized_desc;
  33   serialized_desc.SetFromPPTrueTypeFontDesc(desc);
  34   SendCreate(RENDERER, PpapiHostMsg_TrueTypeFont_Create(serialized_desc));
  35 }
  36
  37 TrueTypeFontResource::~TrueTypeFontResource() {
  38 }
  39
  40 PPB_TrueTypeFont_API* TrueTypeFontResource::AsPPB_TrueTypeFont_API() {
  41   return this;
  42 }
  43
  44 int32_t TrueTypeFontResource::Describe(
  45     PP_TrueTypeFontDesc_Dev* desc,
  46     scoped_refptr<TrackedCallback> callback) {
  47   Call<PpapiPluginMsg_TrueTypeFont_DescribeReply>(RENDERER,
  48       PpapiHostMsg_TrueTypeFont_Describe(),
  49       base::Bind(&TrueTypeFontResource::OnPluginMsgDescribeComplete, this,
  50                  callback, desc));
  51   return PP_OK_COMPLETIONPENDING;
  52 }
  53
  54 int32_t TrueTypeFontResource::GetTableTags(
  55     const PP_ArrayOutput& output,
  56     scoped_refptr<TrackedCallback> callback) {
  57   Call<PpapiPluginMsg_TrueTypeFont_GetTableTagsReply>(RENDERER,
  58       PpapiHostMsg_TrueTypeFont_GetTableTags(),
  59       base::Bind(&TrueTypeFontResource::OnPluginMsgGetTableTagsComplete, this,
  60                  callback, output));
  61   return PP_OK_COMPLETIONPENDING;
  62 }
  63
  64 int32_t TrueTypeFontResource::GetTable(
  65     uint32_t table,
  66     int32_t offset,
  67     int32_t max_data_length,
  68     const PP_ArrayOutput& output,
  69     scoped_refptr<TrackedCallback> callback) {
  70   Call<PpapiPluginMsg_TrueTypeFont_GetTableReply>(RENDERER,
  71       PpapiHostMsg_TrueTypeFont_GetTable(table, offset, max_data_length),
  72       base::Bind(&TrueTypeFontResource::OnPluginMsgGetTableComplete, this,
  73                  callback, output));
  74   return PP_OK_COMPLETIONPENDING;
  75 }
  76
  77 void TrueTypeFontResource::OnPluginMsgDescribeComplete(
  78     scoped_refptr<TrackedCallback> callback,
  79     PP_TrueTypeFontDesc_Dev* pp_desc,
  80     const ResourceMessageReplyParams& params,
  81     const ppapi::proxy::SerializedTrueTypeFontDesc& desc) {
  82   int32_t result = params.result();
  83   if (result == PP_OK)
  84     desc.CopyToPPTrueTypeFontDesc(pp_desc);
  85
  86   callback->Run(result);
  87 }
  88
  89 void TrueTypeFontResource::OnPluginMsgGetTableTagsComplete(
  90     scoped_refptr<TrackedCallback> callback,
  91     PP_ArrayOutput array_output,
  92     const ResourceMessageReplyParams& params,
  93     const std::vector<uint32_t>& tag_array) {
  94   // The result code should contain the data size if it's positive.
  95   int32_t result = params.result();
  96   DCHECK((result < 0 && tag_array.size() == 0) ||
  97          result == static_cast<int32_t>(tag_array.size()));
  98
  99   ArrayWriter output;
 100   output.set_pp_array_output(array_output);
 101   if (output.is_valid())
 102     output.StoreArray(&tag_array[0], std::max(0, result));
 103   else
 104     result = PP_ERROR_FAILED;
 105
 106   callback->Run(result);
 107 }
 108
 109 void TrueTypeFontResource::OnPluginMsgGetTableComplete(
 110     scoped_refptr<TrackedCallback> callback,
 111     PP_ArrayOutput array_output,
 112     const ResourceMessageReplyParams& params,
 113     const std::string& data) {
 114   // The result code should contain the data size if it's positive.
 115   int32_t result = params.result();
 116   DCHECK((result < 0 && data.size() == 0) ||
 117          result == static_cast<int32_t>(data.size()));
 118
 119   ArrayWriter output;
 120   output.set_pp_array_output(array_output);
 121   if (output.is_valid())
 122     output.StoreArray(data.data(), std::max(0, result));
 123   else
 124     result = PP_ERROR_FAILED;
 125
 126   callback->Run(result);
 127 }
 128
 129 }  // namespace proxy
 130 }  // namespace ppapi