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      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 "ppapi/c/pp_var.h"
      6 #include "ppapi/shared_impl/private/ppb_char_set_shared.h"
      7 #include "ppapi/thunk/thunk.h"
      8 #include "ppapi/thunk/enter.h"
      9 
     10 namespace ppapi {
     11 namespace thunk {
     12 
     13 namespace {
     14 
     15 char* UTF16ToCharSetDeprecated(PP_Instance instance,
     16                                const uint16_t* utf16, uint32_t utf16_len,
     17                                const char* output_char_set,
     18                                PP_CharSet_ConversionError on_error,
     19                                uint32_t* output_length) {
     20   // We validate the instance just to make sure we can make changes in the
     21   // future and assume people pass proper instances.
     22   EnterInstance enter(instance);
     23   if (enter.failed())
     24     return NULL;
     25 
     26   return PPB_CharSet_Shared::UTF16ToCharSetDeprecated(
     27       utf16, utf16_len, output_char_set, on_error, output_length);
     28 }
     29 
     30 PP_Bool UTF16ToCharSet(const uint16_t utf16[],
     31                        uint32_t utf16_len,
     32                        const char* output_char_set,
     33                        PP_CharSet_Trusted_ConversionError on_error,
     34                        char* output_buffer,
     35                        uint32_t* output_length) {
     36   // This interface is a bit odd because it contains a function
     37   // (GetDefaultCharSet) that must be called on the instance object and
     38   // proxied, but the rest of the functions are implemented in the plugin
     39   // process by just calling base functions.
     40   //
     41   // We could have PPB_Instance_API functions for the two charset conversion
     42   // functions, and then have the instance impl and proxy call through to the
     43   // shared_impl. That would be more consistent, and we may want to do that if
     44   // this file is autogenerated in the future. For now, however, it's less code
     45   // to just call the shared_impl code directly here.
     46   return PPB_CharSet_Shared::UTF16ToCharSet(
     47       utf16, utf16_len, output_char_set, on_error,
     48       output_buffer, output_length);
     49 }
     50 
     51 uint16_t* CharSetToUTF16Deprecated(PP_Instance instance,
     52                                    const char* input, uint32_t input_len,
     53                                    const char* input_char_set,
     54                                    PP_CharSet_ConversionError on_error,
     55                                    uint32_t* output_length) {
     56   // We validate the instance just to make sure we can make changes in the
     57   // future and assume people pass proper instances.
     58   EnterInstance enter(instance);
     59   if (enter.failed())
     60     return NULL;
     61 
     62   return PPB_CharSet_Shared::CharSetToUTF16Deprecated(
     63       input, input_len, input_char_set, on_error, output_length);
     64 }
     65 
     66 PP_Bool CharSetToUTF16(const char* input,
     67                        uint32_t input_len,
     68                        const char* input_char_set,
     69                        PP_CharSet_Trusted_ConversionError on_error,
     70                        uint16_t* output_buffer,
     71                        uint32_t* output_utf16_length) {
     72   return PPB_CharSet_Shared::CharSetToUTF16(
     73       input, input_len, input_char_set, on_error,
     74       output_buffer, output_utf16_length);
     75 }
     76 
     77 PP_Var GetDefaultCharSet(PP_Instance instance) {
     78   EnterInstance enter(instance);
     79   if (enter.failed())
     80     return PP_MakeUndefined();
     81   return enter.functions()->GetDefaultCharSet(instance);
     82 }
     83 
     84 const PPB_CharSet_Dev g_ppb_char_set_thunk = {
     85   &UTF16ToCharSetDeprecated,
     86   &CharSetToUTF16Deprecated,
     87   &GetDefaultCharSet
     88 };
     89 
     90 const PPB_CharSet_Trusted_1_0 g_ppb_char_set_trusted_thunk = {
     91   &UTF16ToCharSet,
     92   &CharSetToUTF16,
     93   &GetDefaultCharSet
     94 };
     95 
     96 }  // namespace
     97 
     98 const PPB_CharSet_Dev_0_4* GetPPB_CharSet_Dev_0_4_Thunk() {
     99   return &g_ppb_char_set_thunk;
    100 }
    101 
    102 const PPB_CharSet_Trusted_1_0* GetPPB_CharSet_Trusted_1_0_Thunk() {
    103   return &g_ppb_char_set_trusted_thunk;
    104 }
    105 
    106 }  // namespace thunk
    107 }  // namespace ppapi
    108