intl/uconv/src/nsOS2Charset.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  *
   3  * ***** BEGIN LICENSE BLOCK *****
   4  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   5  *
   6  * The contents of this file are subject to the Mozilla Public License Version
   7  * 1.1 (the "License"); you may not use this file except in compliance with
   8  * the License. You may obtain a copy of the License at
   9  * http://www.mozilla.org/MPL/
  10  *
  11  * Software distributed under the License is distributed on an "AS IS" basis,
  12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  13  * for the specific language governing rights and limitations under the
  14  * License.
  15  *
  16  * The Original Code is Mozilla Communicator client code.
  17  *
  18  * The Initial Developer of the Original Code is
  19  * Netscape Communications Corporation.
  20  * Portions created by the Initial Developer are Copyright (C) 1998
  21  * the Initial Developer. All Rights Reserved.
  22  *
  23  * Contributor(s):
  24  *   John Fairhurst
  25  *   Henry Sobotka
  26  *   IBM Corp.
  27  *
  28  * Alternatively, the contents of this file may be used under the terms of
  29  * either of the GNU General Public License Version 2 or later (the "GPL"),
  30  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  31  * in which case the provisions of the GPL or the LGPL are applicable instead
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  37  * the provisions above, a recipient may use your version of this file under
  38  * the terms of any one of the MPL, the GPL or the LGPL.
  39  *
  40  * ***** END LICENSE BLOCK ***** */
  41 #include "nsIPlatformCharset.h"
  42 #include "nsGREResProperties.h"
  43 #include "pratom.h"
  44 #define INCL_WIN
  45 #include <os2.h>
  46 #include "nsUConvDll.h"
  47 #include "nsIOS2Locale.h"
  48 #include "nsCOMPtr.h"
  49 #include "nsReadableUtils.h"
  50 #include "nsLocaleCID.h"
  51 #include "nsIComponentManager.h"
  52 #include "nsITimelineService.h"
  53 #include "nsPlatformCharset.h"
  54
  55 static nsGREResProperties *gInfo = nsnull;
  56 static PRInt32 gCnt= 0;
  57
  58 NS_IMPL_ISUPPORTS1(nsPlatformCharset, nsIPlatformCharset)
  59
  60 nsPlatformCharset::nsPlatformCharset()
  61 {
  62   NS_TIMELINE_START_TIMER("nsPlatformCharset()");
  63
  64   UINT acp = ::WinQueryCp(HMQ_CURRENT);
  65   PRInt32 acpint = (PRInt32)(acp & 0x00FFFF);
  66   nsAutoString acpKey(NS_LITERAL_STRING("os2."));
  67   acpKey.AppendInt(acpint, 10);
  68   nsresult res = MapToCharset(acpKey, mCharset);
  69
  70   NS_TIMELINE_STOP_TIMER("nsPlatformCharset()");
  71   NS_TIMELINE_MARK_TIMER("nsPlatformCharset()");
  72           }
  73 nsPlatformCharset::~nsPlatformCharset()
  74 {
  75   PR_AtomicDecrement(&gCnt);
  76   if ((0 == gCnt) && (nsnull != gInfo)) {
  77     delete gInfo;
  78     gInfo = nsnull;
  79   }
  80 }
  81
  82 nsresult
  83 nsPlatformCharset::InitInfo()
  84 {
  85   PR_AtomicIncrement(&gCnt); // count for gInfo
  86
  87   if (gInfo == nsnull) {
  88     nsGREResProperties *info =
  89         new nsGREResProperties(NS_LITERAL_CSTRING("os2charset.properties"));
  90
  91     NS_ASSERTION(info , "cannot open properties file");
  92     NS_ENSURE_TRUE(info, NS_ERROR_FAILURE);
  93     gInfo = info;
  94   }
  95   return NS_OK;
  96 }
  97
  98 nsresult
  99 nsPlatformCharset::MapToCharset(nsAString& inANSICodePage, nsACString& outCharset)
 100 {
 101   //delay loading os2charset.properties bundle if possible
 102   if (inANSICodePage.EqualsLiteral("os2.850")) {
 103     outCharset.AssignLiteral("IBM850");
 104     return NS_OK;
 105   }
 106
 107   if (inANSICodePage.EqualsLiteral("os2.932")) {
 108     outCharset.AssignLiteral("Shift_JIS");
 109     return NS_OK;
 110   }
 111
 112   // ensure the .property file is loaded
 113   nsresult rv = InitInfo();
 114   if (NS_FAILED(rv)) {
 115     outCharset.AssignLiteral("IBM850");
 116     return rv;
 117   }
 118
 119   nsAutoString charset;
 120   rv = gInfo->Get(inANSICodePage, charset);
 121   if (NS_FAILED(rv)) {
 122     outCharset.AssignLiteral("IBM850");
 123     return rv;
 124   }
 125
 126   LossyCopyUTF16toASCII(charset, outCharset);
 127   return NS_OK;
 128 }
 129
 130 NS_IMETHODIMP
 131 nsPlatformCharset::GetCharset(nsPlatformCharsetSel selector,
 132                               nsACString& oResult)
 133 {
 134   if ((selector == kPlatformCharsetSel_4xBookmarkFile) || (selector == kPlatformCharsetSel_4xPrefsJS)) {
 135     if ((mCharset.Find("IBM850", IGNORE_CASE) != -1) || (mCharset.Find("IBM437", IGNORE_CASE) != -1))
 136       oResult.AssignLiteral("ISO-8859-1");
 137     else if (mCharset.Find("IBM852", IGNORE_CASE) != -1)
 138       oResult.AssignLiteral("windows-1250");
 139     else if ((mCharset.Find("IBM855", IGNORE_CASE) != -1) || (mCharset.Find("IBM866", IGNORE_CASE) != -1))
 140       oResult.AssignLiteral("windows-1251");
 141     else if ((mCharset.Find("IBM869", IGNORE_CASE) != -1) || (mCharset.Find("IBM813", IGNORE_CASE) != -1))
 142       oResult.AssignLiteral("windows-1253");
 143     else if (mCharset.Find("IBM857", IGNORE_CASE) != -1)
 144       oResult.AssignLiteral("windows-1254");
 145     else
 146       oResult = mCharset;
 147   } else {
 148     oResult = mCharset;
 149   }
 150   return NS_OK;
 151 }
 152
 153 NS_IMETHODIMP
 154 nsPlatformCharset::GetDefaultCharsetForLocale(const nsAString& localeName, nsACString &oResult)
 155 {
 156   nsCOMPtr<nsIOS2Locale>        os2Locale;
 157   ULONG                                         codepage;
 158   char                                          acp_name[6];
 159
 160   //
 161   // convert locale name to a code page
 162   //
 163   nsresult rv;
 164   oResult.Truncate();
 165
 166   os2Locale = do_CreateInstance(NS_OS2LOCALE_CONTRACTID, &rv);
 167   if (NS_FAILED(rv)) { return rv; }
 168
 169   rv = os2Locale->GetPlatformLocale(localeName, &codepage);
 170   if (NS_FAILED(rv)) { return rv; }
 171
 172   nsAutoString os2_key(NS_LITERAL_STRING("os2."));
 173   os2_key.AppendInt((PRUint32)codepage);
 174
 175   return MapToCharset(os2_key, oResult);
 176
 177 }
 178
 179 NS_IMETHODIMP
 180 nsPlatformCharset::Init()
 181 {
 182   return NS_OK;
 183 }
 184
 185 nsresult
 186 nsPlatformCharset::MapToCharset(short script, short region, nsACString& outCharset)
 187 {
 188   return NS_OK;
 189 }
 190
 191 nsresult
 192 nsPlatformCharset::InitGetCharset(nsACString &oString)
 193 {
 194   return NS_OK;
 195 }
 196
 197 nsresult
 198 nsPlatformCharset::ConvertLocaleToCharsetUsingDeprecatedConfig(nsAString& locale, nsACString& oResult)
 199 {
 200   return NS_OK;
 201 }
 202
 203 nsresult
 204 nsPlatformCharset::VerifyCharset(nsCString &aCharset)
 205 {
 206   return NS_OK;
 207 }