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_SHARED_IMPL_FLASH_CLIPBOARD_FORMAT_REGISTRY_H_ 6 #define PPAPI_SHARED_IMPL_FLASH_CLIPBOARD_FORMAT_REGISTRY_H_ 7 8 #include <map> 9 #include <string> 10 11 #include "base/basictypes.h" 12 #include "ppapi/c/private/ppb_flash_clipboard.h" 13 #include "ppapi/shared_impl/ppapi_shared_export.h" 14 15 namespace ppapi { 16 17 // This class manages custom clipboard formats that can be registered by a user 18 // of PPB_Flash_Clipboard. It is used by both the plugin and host side 19 // of the proxy. The host side is the definitive source of which formats 20 // have been registered but format registration is tracked on the plugin 21 // side to better handle error cases. 22 class PPAPI_SHARED_EXPORT FlashClipboardFormatRegistry { 23 public: 24 FlashClipboardFormatRegistry(); 25 ~FlashClipboardFormatRegistry(); 26 27 // Registers a custom format with the given string. The ID of the format is 28 // returned if registered successfully, otherwise 29 // PP_FLASH_CLIPBOARD_FORMAT_INVALID is returned. If a format with a 30 // particular name is already registered, the ID associated with that name 31 // will be returned. The format name is checked for validity. 32 uint32_t RegisterFormat(const std::string& format_name); 33 34 // This sets the name of a particular format in the registry. This is only 35 // used on the plugin side in order to track format IDs that are returned 36 // by the host. 37 void SetRegisteredFormat(const std::string& format_name, uint32_t format); 38 39 // Checks whether the given custom format ID has been registered. 40 bool IsFormatRegistered(uint32_t format) const; 41 42 // Returns the name of a particular format. 43 std::string GetFormatName(uint32_t format) const; 44 45 // Gets the ID of a particular format name that has already been registered. 46 // PP_FLASH_CLIPBOARD_FORMAT_INVALID is returned if the format has not been 47 // registered. 48 uint32_t GetFormatID(const std::string& format_name) const; 49 50 // Returns whether the given clipboard format is a valid predefined format 51 // (i.e. one defined in the PP_Flash_Clipboard_Format enum). 52 static bool IsValidPredefinedFormat(uint32_t format); 53 54 private: 55 // A map of custom format ID to format name. 56 typedef std::map<uint32_t, std::string> FormatMap; 57 FormatMap custom_formats_; 58 59 DISALLOW_COPY_AND_ASSIGN(FlashClipboardFormatRegistry); 60 }; 61 62 } // ppapi 63 64 #endif // PPAPI_SHARED_IMPL_FLASH_CLIPBOARD_FORMAT_REGISTRY_H_ 65