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// 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.
//
// This class implements a simplified and much stripped down version of
// Chrome's app/resource_bundle machinery. It notably avoids unwanted
// dependencies on things like Skia.
//
#ifndef CHROME_FRAME_SIMPLE_RESOURCE_LOADER_H_
#define CHROME_FRAME_SIMPLE_RESOURCE_LOADER_H_
#include <windows.h>
#include <string>
#include "base/singleton.h"
class SimpleResourceLoader {
public:
static SimpleResourceLoader* instance() {
return Singleton<SimpleResourceLoader>::get();
}
// Helper method to return the string resource identified by message_id
// from the currently loaded locale dll.
static std::wstring Get(int message_id);
// Retrieves the HINSTANCE of the loaded module handle. May be NULL if a
// resource DLL could not be loaded.
HINSTANCE GetResourceModuleHandle();
private:
SimpleResourceLoader();
// Retrieves the system locale in the <language>-<region> format using ICU.
std::wstring GetSystemLocale();
// Uses |locale| to build the resource DLL name and then looks for the named
// DLL in known locales paths. If it doesn't find it, it falls back to
// looking for an en-US.dll.
//
// Returns true if a locale DLL can be found, false otherwise.
bool GetLocaleFilePath(const std::wstring& locale, std::wstring* file_path);
// Loads the locale dll at the given path. Returns a handle to the DLL or
// NULL on failure.
HINSTANCE LoadLocaleDll(const std::wstring& dll_path);
// Returns the string resource identified by message_id from the currently
// loaded locale dll.
std::wstring GetLocalizedResource(int message_id);
friend struct DefaultSingletonTraits<SimpleResourceLoader>;
static HINSTANCE locale_dll_handle_;
};
#endif // CHROME_FRAME_SIMPLE_RESOURCE_LOADER_H_
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