ppapi/proxy/flash_font_file_resource.h

   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 #ifndef PPAPI_PROXY_FLASH_FONT_FILE_RESOURCE_H_
   6 #define PPAPI_PROXY_FLASH_FONT_FILE_RESOURCE_H_
   7
   8 #include <string>
   9
  10 #include "base/containers/scoped_ptr_hash_map.h"
  11 #include "ppapi/c/private/pp_private_font_charset.h"
  12 #include "ppapi/proxy/plugin_resource.h"
  13 #include "ppapi/proxy/serialized_structs.h"
  14 #include "ppapi/thunk/ppb_flash_font_file_api.h"
  15
  16 struct PP_BrowserFont_Trusted_Description;
  17
  18 namespace ppapi {
  19 namespace proxy {
  20
  21 // TODO(yzshen): write unittest and browser test.
  22 class FlashFontFileResource : public PluginResource,
  23                               public thunk::PPB_Flash_FontFile_API {
  24  public:
  25   FlashFontFileResource(Connection connection,
  26                         PP_Instance instance,
  27                         const PP_BrowserFont_Trusted_Description* description,
  28                         PP_PrivateFontCharset charset);
  29   ~FlashFontFileResource() override;
  30
  31   // Resource overrides.
  32   thunk::PPB_Flash_FontFile_API* AsPPB_Flash_FontFile_API() override;
  33
  34   // PPB_Flash_FontFile_API.
  35   PP_Bool GetFontTable(uint32_t table,
  36                        void* output,
  37                        uint32_t* output_length) override;
  38
  39  private:
  40   // Sees if we have a cache of the font table and returns a pointer to it.
  41   // Returns NULL if we don't have it.
  42   const std::string* GetFontTable(uint32_t table) const;
  43
  44   const std::string* AddFontTable(uint32_t table, const std::string& contents);
  45
  46   using FontTableMap =
  47       base::ScopedPtrHashMap<uint32_t, scoped_ptr<std::string>>;
  48   FontTableMap font_tables_;
  49
  50   SerializedFontDescription description_;
  51   const PP_PrivateFontCharset charset_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(FlashFontFileResource);
  54 };
  55
  56 }  // namespace proxy
  57 }  // namespace ppapi
  58
  59 #endif  // PPAPI_PROXY_FLASH_FONT_FILE_RESOURCE_H_