// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "webkit/plugins/ppapi/ppb_char_set_impl.h"

#include "ppapi/c/dev/ppb_char_set_dev.h"
#include "ppapi/shared_impl/char_set_impl.h"
#include "webkit/plugins/ppapi/plugin_delegate.h"
#include "webkit/plugins/ppapi/plugin_module.h"
#include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
#include "webkit/plugins/ppapi/resource_tracker.h"
#include "webkit/plugins/ppapi/var.h"

namespace webkit {
namespace ppapi {

namespace {

char* UTF16ToCharSet(PP_Instance /* instance */,
                     const uint16_t* utf16, uint32_t utf16_len,
                     const char* output_char_set,
                     PP_CharSet_ConversionError on_error,
                     uint32_t* output_length) {
  return pp::shared_impl::CharSetImpl::UTF16ToCharSet(
      PluginModule::GetCore(), utf16, utf16_len, output_char_set, on_error,
      output_length);
}

uint16_t* CharSetToUTF16(PP_Instance /* instance */,
                         const char* input, uint32_t input_len,
                         const char* input_char_set,
                         PP_CharSet_ConversionError on_error,
                         uint32_t* output_length) {
  return pp::shared_impl::CharSetImpl::CharSetToUTF16(
      PluginModule::GetCore(), input, input_len, input_char_set, on_error,
      output_length);
}

PP_Var GetDefaultCharSet(PP_Instance instance_id) {
  PluginInstance* instance = ResourceTracker::Get()->GetInstance(instance_id);
  if (!instance)
    return PP_MakeUndefined();

  std::string encoding = instance->delegate()->GetDefaultEncoding();
  return StringVar::StringToPPVar(instance->module(), encoding);
}

const PPB_CharSet_Dev ppb_charset = {
  &UTF16ToCharSet,
  &CharSetToUTF16,
  &GetDefaultCharSet
};

}  // namespace

// static
const struct PPB_CharSet_Dev* PPB_CharSet_Impl::GetInterface() {
  return &ppb_charset;
}

}  // namespace ppapi
}  // namespace webkit