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https://github.com/mozilla/gecko-dev.git
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397 lines
14 KiB
C++
397 lines
14 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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// =========================================================================
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// This file provides implementations of the Unicode versions of nsIFile
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// methods and nsFileSpec. It converts between Unicode and the FS
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// charset using uconv. As implementations of nsLocalFile implement these
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// methods themselves using OS facilities, this file should go away. It
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// is here only during that transition.
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// =========================================================================
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#include "nsIServiceManager.h"
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#ifndef XPCOM_STANDALONE
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#include "nsIPlatformCharset.h"
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#include "nsICharsetConverterManager.h"
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#include "nsIUnicodeEncoder.h"
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#include "nsIUnicodeDecoder.h"
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#include "nsIUnicodeEncoder.h"
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#include "nsIUnicodeDecoder.h"
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#endif /* XPCOM_STANDALONE */
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#include "nsLocalFile.h" // includes platform-specific headers
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#include "nsLocalFileUnicode.h"
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#include "nsFileSpec.h"
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class nsFSStringConversion {
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public:
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static void CleanUp();
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static nsresult UCSToNewFS( const PRUnichar* aIn, char** aOut);
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static nsresult FSToNewUCS( const char* aIn, PRUnichar** aOut);
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private:
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static nsresult PrepareFSCharset();
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static nsresult PrepareEncoder();
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static nsresult PrepareDecoder();
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static nsString* mFSCharset;
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#ifndef XPCOM_STANDALONE
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static nsIUnicodeEncoder* mEncoder;
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static nsIUnicodeDecoder* mDecoder;
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#endif /* XPCOM_STANDALONE */
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};
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nsString* nsFSStringConversion::mFSCharset = nsnull;
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#ifndef XPCOM_STANDALONE
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nsIUnicodeEncoder* nsFSStringConversion::mEncoder = nsnull;
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nsIUnicodeDecoder* nsFSStringConversion::mDecoder = nsnull;
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#endif /* XPCOM_STANDALONE */
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void NS_ShutdownLocalFileUnicode()
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{
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#ifndef XPCOM_STANDALONE
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nsFSStringConversion::CleanUp();
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#endif /* XPCOM_STANDALONE */
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}
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#define GET_UCS( func , arg) \
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{ \
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char* tmp; \
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nsresult res; \
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if(NS_SUCCEEDED(res = (func)(&tmp))) { \
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if(NS_SUCCEEDED(res = nsFSStringConversion::FSToNewUCS(tmp, (arg)))){ \
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nsMemory::Free(tmp); \
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} \
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} \
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return res; \
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}
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#define VOID_SET_UCS( func , arg, assertion_msg) \
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{ \
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char* tmp; \
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nsresult res; \
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if(NS_SUCCEEDED(res = nsFSStringConversion::UCSToNewFS((arg), &tmp))) { \
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(func)(tmp); \
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nsMemory::Free(tmp); \
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} \
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NS_ASSERTION(NS_SUCCEEDED(res), assertion_msg); \
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}
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#define SET_UCS( func , arg) \
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{ \
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char* tmp; \
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nsresult res; \
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if(NS_SUCCEEDED(res = nsFSStringConversion::UCSToNewFS((arg), &tmp))) { \
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res = (func)(tmp); \
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nsMemory::Free(tmp); \
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} \
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return res; \
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}
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#define SET_UCS_2ARGS_2( func , arg1, arg2) \
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{ \
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char* tmp; \
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nsresult res; \
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if(NS_SUCCEEDED(res = nsFSStringConversion::UCSToNewFS((arg2), &tmp))){ \
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res = (func)(arg1, tmp); \
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nsMemory::Free(tmp); \
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} \
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return res; \
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}
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#define SET_UCS_2ARGS_1( func , path, followLinks, result) \
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{ \
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char* tmp; \
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nsresult res; \
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if(NS_SUCCEEDED(res = nsFSStringConversion::UCSToNewFS((path), &tmp))){ \
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res = (func)(tmp, followLinks, result); \
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nsMemory::Free(tmp); \
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} \
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return res; \
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}
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void
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nsFSStringConversion::CleanUp()
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{
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#ifndef XPCOM_STANDALONE
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NS_IF_RELEASE(mEncoder);
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NS_IF_RELEASE(mDecoder);
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#endif /* XPCOM_STANDALONE */
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}
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/* static */ nsresult
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nsFSStringConversion::PrepareFSCharset()
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{
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nsresult res = NS_ERROR_NOT_IMPLEMENTED;
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#ifndef XPCOM_STANDALONE
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res = NS_OK;
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if(!mFSCharset)
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{
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// lazy eval of the file system charset
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nsCOMPtr<nsIPlatformCharset> pcharset =
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do_GetService(NS_PLATFORMCHARSET_CONTRACTID, &res);
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if (NS_SUCCEEDED(res) && !pcharset) res = NS_ERROR_NULL_POINTER;
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if (NS_SUCCEEDED(res)) {
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mFSCharset = new nsString();
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if (!mFSCharset)
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res = NS_ERROR_OUT_OF_MEMORY;
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}
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if(NS_SUCCEEDED(res)) {
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res = pcharset->GetCharset(kPlatformCharsetSel_FileName, *mFSCharset);
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}
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if (NS_FAILED(res)) {
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NS_WARNING("cannot get platform charset");
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}
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}
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#endif /* XPCOM_STANDALONE */
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return res;
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}
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/* static */ nsresult
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nsFSStringConversion::PrepareEncoder()
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{
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nsresult res = NS_ERROR_NOT_IMPLEMENTED;
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#ifndef XPCOM_STANDALONE
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res = NS_OK;
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if(! mEncoder)
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{
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res = PrepareFSCharset();
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if(NS_SUCCEEDED(res)) {
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nsCOMPtr<nsICharsetConverterManager> ucmgr =
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do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &res);
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NS_ASSERTION((NS_SUCCEEDED(res) && ucmgr),
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"cannot get charset converter manager ");
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if(NS_SUCCEEDED(res) && ucmgr)
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res = ucmgr->GetUnicodeEncoder( mFSCharset, &mEncoder);
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NS_ASSERTION((NS_SUCCEEDED(res) && mEncoder),
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"cannot find the unicode encoder");
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}
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}
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#endif /* XPCOM_STANDALONE */
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return res;
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}
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/* static */ nsresult
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nsFSStringConversion::PrepareDecoder()
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{
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nsresult res = NS_ERROR_NOT_IMPLEMENTED;
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#ifndef XPCOM_STANDALONE
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res = NS_OK;
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if(! mDecoder)
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{
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res = PrepareFSCharset();
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if(NS_SUCCEEDED(res)) {
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nsCOMPtr<nsICharsetConverterManager> ucmgr =
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do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &res);
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NS_ASSERTION((NS_SUCCEEDED(res) && ucmgr),
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"cannot get charset converter manager ");
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if(NS_SUCCEEDED(res) && ucmgr)
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res = ucmgr->GetUnicodeDecoder( mFSCharset, &mDecoder);
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NS_ASSERTION((NS_SUCCEEDED(res) && mDecoder),
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"cannot find the unicode decoder");
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}
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}
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#endif /* XPCOM_STANDALONE */
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return res;
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}
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/* static */ nsresult
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nsFSStringConversion::UCSToNewFS( const PRUnichar* aIn, char** aOut)
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{
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nsresult res = NS_ERROR_NOT_IMPLEMENTED;
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#ifndef XPCOM_STANDALONE
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res = PrepareEncoder();
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if(NS_SUCCEEDED(res))
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{
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PRInt32 inLength = nsCRT::strlen(aIn);
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PRInt32 outLength;
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res= mEncoder->GetMaxLength(aIn, inLength,&outLength);
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if(NS_SUCCEEDED(res)) {
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*aOut = (char*)nsMemory::Alloc(outLength+1);
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if(nsnull != *aOut) {
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res = mEncoder->Convert(aIn, &inLength, *aOut, &outLength);
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if(NS_SUCCEEDED(res)) {
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(*aOut)[outLength] = '\0';
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} else {
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nsMemory::Free(*aOut);
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*aOut = nsnull;
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}
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} else {
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res = NS_ERROR_OUT_OF_MEMORY;
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}
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}
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}
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#endif /* XPCOM_STANDALONE */
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return res;
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}
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/* static */ nsresult
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nsFSStringConversion::FSToNewUCS( const char* aIn, PRUnichar** aOut)
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{
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nsresult res = NS_ERROR_NOT_IMPLEMENTED;
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#ifndef XPCOM_STANDALONE
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res = PrepareDecoder();
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if(NS_SUCCEEDED(res))
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{
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PRInt32 inLength = nsCRT::strlen(aIn);
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PRInt32 outLength;
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res= mDecoder->GetMaxLength(aIn, inLength,&outLength);
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if(NS_SUCCEEDED(res)) {
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*aOut = (PRUnichar*)nsMemory::Alloc(2*(outLength+1));
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if(nsnull != *aOut) {
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res = mDecoder->Convert(aIn, &inLength, *aOut, &outLength);
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if(NS_SUCCEEDED(res)) {
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(*aOut)[outLength] = '\0';
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} else {
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nsMemory::Free(*aOut);
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*aOut = nsnull;
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}
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} else {
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res = NS_ERROR_OUT_OF_MEMORY;
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}
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}
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}
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#endif /* XPCOM_STANDALONE */
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return res;
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}
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// Unicode interface Wrapper
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NS_IMETHODIMP
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nsLocalFile::InitWithUnicodePath(const PRUnichar *filePath)
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{
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SET_UCS(InitWithPath, filePath);
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}
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NS_IMETHODIMP
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nsLocalFile::AppendUnicode(const PRUnichar *node)
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{
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SET_UCS( Append , node);
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}
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NS_IMETHODIMP
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nsLocalFile::AppendRelativeUnicodePath(const PRUnichar *node)
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{
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SET_UCS( AppendRelativePath , node);
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}
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NS_IMETHODIMP
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nsLocalFile::GetUnicodeLeafName(PRUnichar **aLeafName)
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{
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GET_UCS(GetLeafName, aLeafName);
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}
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NS_IMETHODIMP
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nsLocalFile::SetUnicodeLeafName(const PRUnichar * aLeafName)
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{
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SET_UCS( SetLeafName , aLeafName);
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}
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NS_IMETHODIMP
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nsLocalFile::GetUnicodePath(PRUnichar **_retval)
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{
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GET_UCS(GetPath, _retval);
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}
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NS_IMETHODIMP
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nsLocalFile::CopyToUnicode(nsIFile *newParentDir, const PRUnichar *newName)
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{
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SET_UCS_2ARGS_2( CopyTo , newParentDir, newName);
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}
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NS_IMETHODIMP
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nsLocalFile::CopyToFollowingLinksUnicode(nsIFile *newParentDir, const PRUnichar *newName)
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{
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SET_UCS_2ARGS_2( CopyToFollowingLinks , newParentDir, newName);
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}
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NS_IMETHODIMP
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nsLocalFile::MoveToUnicode(nsIFile *newParentDir, const PRUnichar *newName)
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{
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SET_UCS_2ARGS_2( MoveTo , newParentDir, newName);
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}
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NS_IMETHODIMP
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nsLocalFile::GetUnicodeTarget(PRUnichar **_retval)
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{
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GET_UCS(GetTarget, _retval);
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}
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nsresult
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NS_NewUnicodeLocalFile(const PRUnichar* path, PRBool followLinks, nsILocalFile* *result)
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{
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SET_UCS_2ARGS_1( NS_NewLocalFile, path, followLinks, result)
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}
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// ==================================================================
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// nsFileSpec stuff - here until nsFileSpec gets obsoleted
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// ==================================================================
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void nsFileSpec::operator = (const nsString& inNativePath)
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{
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char* tmp;
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nsresult res;
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if(NS_SUCCEEDED(res = nsFSStringConversion::UCSToNewFS((inNativePath.get()), &tmp))) {
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*this = tmp;
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nsMemory::Free(tmp);
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}
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mError = res;
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NS_ASSERTION(NS_SUCCEEDED(res), "nsFileSpec = filed");
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}
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nsFileSpec nsFileSpec::operator + (const nsString& inRelativeUnixPath) const
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{
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nsFileSpec resultSpec;
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char* tmp;
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nsresult res;
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if(NS_SUCCEEDED(res = nsFSStringConversion::UCSToNewFS((inRelativeUnixPath.get()), &tmp))) {
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resultSpec = *this;
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resultSpec += tmp;
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nsMemory::Free(tmp);
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}
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NS_ASSERTION(NS_SUCCEEDED(res), "nsFileSpec + filed");
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return resultSpec;
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}
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void nsFileSpec::operator += (const nsString& inRelativeUnixPath)
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{
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char* tmp;
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nsresult res;
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if(NS_SUCCEEDED(res = nsFSStringConversion::UCSToNewFS((inRelativeUnixPath.get()), &tmp))) {
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*this += tmp;
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nsMemory::Free(tmp);
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}
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mError = res;
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NS_ASSERTION(NS_SUCCEEDED(res), "nsFileSpec + filed");
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}
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void nsFileSpec::SetLeafName (const nsString& inLeafName)
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{
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VOID_SET_UCS( SetLeafName , inLeafName.get(),"nsFileSpec::SetLeafName failed");
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}
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void nsFileSpec::MakeUnique(const nsString& inSuggestedLeafName)
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{
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VOID_SET_UCS( MakeUnique,inSuggestedLeafName.get(),"nsFileSpec::MakeUnique failed");
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}
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nsresult nsFileSpec::Rename(const nsString& inNewName)
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{
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SET_UCS( Rename , inNewName.get());
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}
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nsresult nsFileSpec::Execute(const nsString& args) const
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{
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SET_UCS( Execute , args.get());
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}
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