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// Copyright (c) 2012 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.
#ifndef PPAPI_SHARED_IMPL_FLASH_CLIPBOARD_FORMAT_REGISTRY_H_
#define PPAPI_SHARED_IMPL_FLASH_CLIPBOARD_FORMAT_REGISTRY_H_
#include <map>
#include <string>
#include "base/basictypes.h"
#include "ppapi/c/private/ppb_flash_clipboard.h"
#include "ppapi/shared_impl/ppapi_shared_export.h"
namespace ppapi {
// This class manages custom clipboard formats that can be registered by a user
// of PPB_Flash_Clipboard. It is used by both the plugin and host side
// of the proxy. The host side is the definitive source of which formats
// have been registered but format registration is tracked on the plugin
// side to better handle error cases.
class PPAPI_SHARED_EXPORT FlashClipboardFormatRegistry {
public:
FlashClipboardFormatRegistry();
~FlashClipboardFormatRegistry();
// Registers a custom format with the given string. The ID of the format is
// returned if registered successfully, otherwise
// PP_FLASH_CLIPBOARD_FORMAT_INVALID is returned. If a format with a
// particular name is already registered, the ID associated with that name
// will be returned. The format name is checked for validity.
uint32_t RegisterFormat(const std::string& format_name);
// This sets the name of a particular format in the registry. This is only
// used on the plugin side in order to track format IDs that are returned
// by the host.
void SetRegisteredFormat(const std::string& format_name, uint32_t format);
// Checks whether the given custom format ID has been registered.
bool IsFormatRegistered(uint32_t format) const;
// Returns the name of a particular format.
std::string GetFormatName(uint32_t format) const;
// Gets the ID of a particular format name that has already been registered.
// PP_FLASH_CLIPBOARD_FORMAT_INVALID is returned if the format has not been
// registered.
uint32_t GetFormatID(const std::string& format_name) const;
// Returns whether the given clipboard format is a valid predefined format
// (i.e. one defined in the PP_Flash_Clipboard_Format enum).
static bool IsValidPredefinedFormat(uint32_t format);
private:
// A map of custom format ID to format name.
typedef std::map<uint32_t, std::string> FormatMap;
FormatMap custom_formats_;
DISALLOW_COPY_AND_ASSIGN(FlashClipboardFormatRegistry);
};
} // ppapi
#endif // PPAPI_SHARED_IMPL_FLASH_CLIPBOARD_FORMAT_REGISTRY_H_
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