locale_list.c

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/*
 * PROJECT:         input.dll
 * FILE:            dll/cpl/input/locale_list.c
 * PURPOSE:         input.dll
 * PROGRAMMER:      Dmitry Chapyshev (dmitry@reactos.org)
 */
 
#include "locale_list.h"
 
 
static LOCALE_LIST_NODE *_LocaleList = NULL;
 
 
static LOCALE_LIST_NODE*
LocaleList_Append(DWORD dwId, const WCHAR *pszName)
{
    LOCALE_LIST_NODE *pCurrent;
    LOCALE_LIST_NODE *pNew;
 
    if (pszName == NULL)
        return NULL;
 
    pCurrent = _LocaleList;
 
    pNew = (LOCALE_LIST_NODE*)malloc(sizeof(LOCALE_LIST_NODE));
    if (pNew == NULL)
        return NULL;
 
    ZeroMemory(pNew, sizeof(LOCALE_LIST_NODE));
 
    pNew->pszName = _wcsdup(pszName);
    if (pNew->pszName == NULL)
    {
        free(pNew);
        return NULL;
    }
 
    pNew->dwId = dwId;
 
    if (pCurrent == NULL)
    {
        _LocaleList = pNew;
    }
    else
    {
        while (pCurrent->pNext != NULL)
        {
            pCurrent = pCurrent->pNext;
        }
 
        pNew->pPrev = pCurrent;
        pCurrent->pNext = pNew;
    }
 
    return pNew;
}
 
 
VOID
LocaleList_Destroy(VOID)
{
    LOCALE_LIST_NODE *pCurrent;
 
    if (_LocaleList == NULL)
        return;
 
    pCurrent = _LocaleList;
 
    while (pCurrent != NULL)
    {
        LOCALE_LIST_NODE *pNext = pCurrent->pNext;
 
        free(pCurrent->pszName);
        free(pCurrent);
 
        pCurrent = pNext;
    }
 
    _LocaleList = NULL;
}
 
 
LOCALE_LIST_NODE*
LocaleList_Create(VOID)
{
    WCHAR szValue[MAX_PATH];
    DWORD dwIndex;
    DWORD dwSize;
    HKEY hKey;
 
    if (RegOpenKeyExW(HKEY_LOCAL_MACHINE,
                      L"SYSTEM\\CurrentControlSet\\Control\\Nls\\Language",
                      0,
                      KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE,
                      &hKey) != ERROR_SUCCESS)
    {
        return NULL;
    }
 
    dwSize = ARRAYSIZE(szValue);
    dwIndex = 0;
 
    while (RegEnumValueW(hKey, dwIndex, szValue, &dwSize,
                         NULL, NULL, NULL, NULL) == ERROR_SUCCESS)
    {
        WCHAR szName[MAX_STR_LEN];
        DWORD dwId;
 
        dwId = DWORDfromString(szValue);
 
        if (GetLocaleInfoW(LOWORD(dwId),
                           LOCALE_SLANGUAGE,
                           szName, ARRAYSIZE(szName)))
        {
            LocaleList_Append(dwId, szName);
        }
 
        dwSize = ARRAYSIZE(szValue);
        ++dwIndex;
    }
 
    RegCloseKey(hKey);
 
    return _LocaleList;
}
 
 
LOCALE_LIST_NODE*
LocaleList_GetByHkl(HKL hkl)
{
    LOCALE_LIST_NODE *pCurrent;
 
    for (pCurrent = _LocaleList; pCurrent != NULL; pCurrent = pCurrent->pNext)
    {
        if (LOWORD(pCurrent->dwId) == LOWORD(hkl))
        {
            return pCurrent;
        }
    }
 
    return NULL;
}
 
 
LOCALE_LIST_NODE*
LocaleList_GetFirst(VOID)
{
    return _LocaleList;
}