1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <wchar.h>
#include "nlsupport.hxx"
#include <osl/mutex.h>
#include <osl/nlsupport.h>
#include <osl/diagnose.h>
#include <osl/process.h>
#include <rtl/tencinfo.h>
#include <o3tl/char16_t2wchar_t.hxx>
/* XXX NOTE:
* http://msdn.microsoft.com/en-us/library/windows/desktop/dd373848.aspx
* (retrieved 2013-02-13) has some weird description for the LOCALE_SISO*
* constants: "The maximum number of characters allowed for this string is
* nine, including a terminating null character." NINE?!? In ISO 639 and ISO
* 3166?
*/
#define ELP_LANGUAGE_FIELD_LENGTH 4
#define ELP_COUNTRY_FIELD_LENGTH 3
namespace {
/** Struct used in EnumLocalesProcW() called via EnumSystemLocalesW() to obtain
available locales.
*/
struct EnumLocalesParams
{
WCHAR Language[ELP_LANGUAGE_FIELD_LENGTH];
WCHAR Country[ELP_COUNTRY_FIELD_LENGTH];
LCID Locale;
};
}
static DWORD g_dwTLSLocaleEncId = DWORD(-1);
/*****************************************************************************
* callback function test
*****************************************************************************/
static BOOL CALLBACK EnumLocalesProcW( LPWSTR lpLocaleStringW )
{
/* check params received via TLS */
EnumLocalesParams * params = static_cast<EnumLocalesParams *>(TlsGetValue( g_dwTLSLocaleEncId ));
if( nullptr == params || '\0' == params->Language[0] )
return FALSE;
LPWSTR pszEnd;
WCHAR langCode[ELP_LANGUAGE_FIELD_LENGTH];
/* convert hex-string to LCID */
LCID localeId = wcstol(lpLocaleStringW, &pszEnd, 16);
/*
get the ISO language code for this locale
*/
if( GetLocaleInfoW( localeId, LOCALE_SISO639LANGNAME , langCode, ELP_LANGUAGE_FIELD_LENGTH ) )
{
WCHAR ctryCode[ELP_COUNTRY_FIELD_LENGTH];
/* continue if language code does not match */
if( 0 != wcscmp( langCode, params->Language ) )
return TRUE;
/* check if country code is set and equals the current locale */
if( '\0' != params->Country[0] && GetLocaleInfoW( localeId,
LOCALE_SISO3166CTRYNAME , ctryCode, ELP_COUNTRY_FIELD_LENGTH ) )
{
/* save return value in TLS and break if found desired locale */
if( 0 == wcscmp( ctryCode, params->Country ) )
{
params->Locale = localeId;
return FALSE;
}
}
else
{
/* fill with default values for that language */
LANGID langId = LANGIDFROMLCID( localeId );
/* exchange sublanguage with SUBLANG_NEUTRAL */
langId = MAKELANGID( PRIMARYLANGID( langId ), SUBLANG_NEUTRAL );
/* and use default sorting order */
params->Locale = MAKELCID( langId, SORT_DEFAULT );
return FALSE;
}
}
/* retry by going on */
return TRUE;
}
static rtl_TextEncoding GetTextEncodingFromLCID( LCID localeId )
{
rtl_TextEncoding Encoding = RTL_TEXTENCODING_DONTKNOW;
WCHAR ansiCP[6];
/* query ansi codepage for given locale */
if( localeId && GetLocaleInfoW( localeId, LOCALE_IDEFAULTANSICODEPAGE, ansiCP, 6 ) )
{
/* if GetLocaleInfo returns "0", it is a UNICODE only locale */
if( 0 != wcscmp( ansiCP, L"0" ) )
{
WCHAR *pwcEnd;
UINT codepage;
/* values returned from GetLocaleInfo are decimal based */
codepage = wcstol( ansiCP, &pwcEnd, 10 );
/* find matching rtl encoding */
Encoding = rtl_getTextEncodingFromWindowsCodePage( codepage );
}
else
Encoding = RTL_TEXTENCODING_UNICODE;
}
return Encoding;
}
rtl_TextEncoding SAL_CALL osl_getTextEncodingFromLocale( rtl_Locale * pLocale )
{
struct EnumLocalesParams params = { L"", L"", 0 };
/* initialise global TLS id */
if( DWORD(-1) == g_dwTLSLocaleEncId )
{
oslMutex globalMutex = * osl_getGlobalMutex();
/* initializing must be thread save */
osl_acquireMutex( globalMutex );
if( DWORD(-1) == g_dwTLSLocaleEncId )
g_dwTLSLocaleEncId = TlsAlloc();
osl_releaseMutex( globalMutex );
}
/* if pLocale is NULL, use process locale as default */
if( nullptr == pLocale )
osl_getProcessLocale( &pLocale );
/* copy in parameters to structure */
if( pLocale && pLocale->Language && pLocale->Language->length < ELP_LANGUAGE_FIELD_LENGTH )
{
wcscpy( params.Language, o3tl::toW(pLocale->Language->buffer) );
if( pLocale->Country && pLocale->Country->length < ELP_COUNTRY_FIELD_LENGTH )
wcscpy( params.Country, o3tl::toW(pLocale->Country->buffer) );
/* save pointer to local structure in TLS */
TlsSetValue( g_dwTLSLocaleEncId, ¶ms );
/* enum all locales known to Windows */
EnumSystemLocalesW( EnumLocalesProcW, LCID_SUPPORTED );
/* use the LCID found in iteration */
return GetTextEncodingFromLCID( params.Locale );
}
return RTL_TEXTENCODING_DONTKNOW;
}
void imp_getProcessLocale( rtl_Locale ** ppLocale )
{
WCHAR langCode[ELP_LANGUAGE_FIELD_LENGTH];
WCHAR ctryCode[ELP_COUNTRY_FIELD_LENGTH];
LCID localeId;
OSL_ASSERT( ppLocale );
/* get the LCID to retrieve information from */
localeId = GetUserDefaultLCID();
/* call GetLocaleInfo to retrieve the iso codes */
if( GetLocaleInfoW( localeId, LOCALE_SISO639LANGNAME , langCode, ELP_LANGUAGE_FIELD_LENGTH ) &&
GetLocaleInfoW( localeId, LOCALE_SISO3166CTRYNAME , ctryCode, ELP_COUNTRY_FIELD_LENGTH ) )
{
*ppLocale = rtl_locale_register( o3tl::toU(langCode), o3tl::toU(ctryCode), u"" );
}
else
{
*ppLocale = rtl_locale_register( u"C", u"", u"" );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
