gecko-dev/intl/locale/windows/nsCollationWin.cpp

147 строки
4.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsCollationWin.h"
#include "nsIServiceManager.h"
#include "nsIComponentManager.h"
#include "nsILocaleService.h"
#include "nsIPlatformCharset.h"
#include "nsWin32Locale.h"
#include "nsCOMPtr.h"
#include "prmem.h"
#include "plstr.h"
#include <windows.h>
#undef CompareString
NS_IMPL_ISUPPORTS(nsCollationWin, nsICollation)
nsCollationWin::nsCollationWin() : mCollation(nullptr)
{
}
nsCollationWin::~nsCollationWin()
{
if (mCollation)
delete mCollation;
}
nsresult nsCollationWin::Initialize(nsILocale* locale)
{
NS_ASSERTION(!mCollation, "Should only be initialized once.");
nsresult res;
mCollation = new nsCollation;
// default LCID (en-US)
mLCID = 1033;
nsAutoString localeStr;
// get locale string, use app default if no locale specified
if (!locale) {
nsCOMPtr<nsILocaleService> localeService =
do_GetService(NS_LOCALESERVICE_CONTRACTID);
if (localeService) {
nsCOMPtr<nsILocale> appLocale;
res = localeService->GetApplicationLocale(getter_AddRefs(appLocale));
if (NS_SUCCEEDED(res)) {
res = appLocale->GetCategory(NS_LITERAL_STRING("NSILOCALE_COLLATE"),
localeStr);
}
}
}
else {
res = locale->GetCategory(NS_LITERAL_STRING("NSILOCALE_COLLATE"),
localeStr);
}
// Get LCID and charset name from locale, if available
LCID lcid;
res = nsWin32Locale::GetPlatformLocale(localeStr, &lcid);
if (NS_SUCCEEDED(res)) {
mLCID = lcid;
}
nsCOMPtr <nsIPlatformCharset> platformCharset =
do_GetService(NS_PLATFORMCHARSET_CONTRACTID);
if (platformCharset) {
nsAutoCString mappedCharset;
res = platformCharset->GetDefaultCharsetForLocale(localeStr, mappedCharset);
if (NS_SUCCEEDED(res)) {
mCollation->SetCharset(mappedCharset.get());
}
}
return NS_OK;
}
NS_IMETHODIMP nsCollationWin::CompareString(int32_t strength,
const nsAString & string1,
const nsAString & string2,
int32_t *result)
{
int retval;
nsresult res;
DWORD dwMapFlags = 0;
if (strength == kCollationCaseInSensitive)
dwMapFlags |= NORM_IGNORECASE;
retval = ::CompareStringW(mLCID,
dwMapFlags,
(LPCWSTR) PromiseFlatString(string1).get(),
-1,
(LPCWSTR) PromiseFlatString(string2).get(),
-1);
if (retval) {
res = NS_OK;
*result = retval - 2;
} else {
res = NS_ERROR_FAILURE;
}
return res;
}
nsresult nsCollationWin::AllocateRawSortKey(int32_t strength,
const nsAString& stringIn, uint8_t** key, uint32_t* outLen)
{
int byteLen;
void *buffer;
nsresult res = NS_OK;
DWORD dwMapFlags = LCMAP_SORTKEY;
if (strength == kCollationCaseInSensitive)
dwMapFlags |= NORM_IGNORECASE;
byteLen = LCMapStringW(mLCID, dwMapFlags,
(LPCWSTR) PromiseFlatString(stringIn).get(),
-1, nullptr, 0);
buffer = PR_Malloc(byteLen);
if (!buffer) {
res = NS_ERROR_OUT_OF_MEMORY;
} else {
*key = (uint8_t *)buffer;
*outLen = LCMapStringW(mLCID, dwMapFlags,
(LPCWSTR) PromiseFlatString(stringIn).get(),
-1, (LPWSTR) buffer, byteLen);
}
return res;
}
nsresult nsCollationWin::CompareRawSortKey(const uint8_t* key1, uint32_t len1,
const uint8_t* key2, uint32_t len2,
int32_t* result)
{
*result = PL_strcmp((const char *)key1, (const char *)key2);
return NS_OK;
}