mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
297 lines
8.7 KiB
C++
297 lines
8.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 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 Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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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 Communicator client 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) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Makoto Kato <m_kato@ga2.so-net.ne.jp >
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* Ryoichi Furukawa <oliver@1000cp.com>
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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 MPL, 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 MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "pratom.h"
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#include "nsString.h"
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#include "nsReadableUtils.h"
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#include "nsIServiceManager.h"
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#include "nsICharsetConverterManager.h"
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#include "nsIScriptableUConv.h"
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#include "nsScriptableUConv.h"
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#include "nsIStringStream.h"
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#include "nsCRT.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIPlatformCharset.h"
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static PRInt32 gInstanceCount = 0;
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/* Implementation file */
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NS_IMPL_ISUPPORTS1(nsScriptableUnicodeConverter, nsIScriptableUnicodeConverter)
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nsScriptableUnicodeConverter::nsScriptableUnicodeConverter()
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{
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PR_AtomicIncrement(&gInstanceCount);
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}
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nsScriptableUnicodeConverter::~nsScriptableUnicodeConverter()
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{
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PR_AtomicDecrement(&gInstanceCount);
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}
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nsresult
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nsScriptableUnicodeConverter::ConvertFromUnicodeWithLength(const nsAString& aSrc,
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PRInt32* aOutLen,
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char **_retval)
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{
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if (!mEncoder)
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return NS_ERROR_FAILURE;
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nsresult rv = NS_OK;
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PRInt32 inLength = aSrc.Length();
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const nsAFlatString& flatSrc = PromiseFlatString(aSrc);
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rv = mEncoder->GetMaxLength(flatSrc.get(), inLength, aOutLen);
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if (NS_SUCCEEDED(rv)) {
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*_retval = (char*) nsMemory::Alloc(*aOutLen+1);
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if (!*_retval)
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return NS_ERROR_OUT_OF_MEMORY;
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rv = mEncoder->Convert(flatSrc.get(), &inLength, *_retval, aOutLen);
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if (NS_SUCCEEDED(rv))
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{
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(*_retval)[*aOutLen] = '\0';
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return NS_OK;
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}
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nsMemory::Free(*_retval);
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}
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*_retval = nsnull;
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return NS_ERROR_FAILURE;
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}
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/* ACString ConvertFromUnicode (in AString src); */
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NS_IMETHODIMP
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nsScriptableUnicodeConverter::ConvertFromUnicode(const nsAString& aSrc,
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nsACString& _retval)
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{
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PRInt32 len;
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char* str;
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nsresult rv = ConvertFromUnicodeWithLength(aSrc, &len, &str);
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if (NS_SUCCEEDED(rv)) {
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// No Adopt on nsACString :(
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_retval.Assign(str, len);
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nsMemory::Free(str);
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}
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return rv;
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}
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nsresult
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nsScriptableUnicodeConverter::FinishWithLength(char **_retval, PRInt32* aLength)
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{
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if (!mEncoder)
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return NS_ERROR_FAILURE;
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PRInt32 finLength = 32;
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*_retval = (char *) nsMemory::Alloc(finLength);
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if (!*_retval)
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return NS_ERROR_OUT_OF_MEMORY;
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nsresult rv = mEncoder->Finish(*_retval, &finLength);
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if (NS_SUCCEEDED(rv))
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*aLength = finLength;
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else
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nsMemory::Free(*_retval);
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return rv;
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}
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/* ACString Finish(); */
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NS_IMETHODIMP
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nsScriptableUnicodeConverter::Finish(nsACString& _retval)
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{
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PRInt32 len;
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char* str;
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nsresult rv = FinishWithLength(&str, &len);
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if (NS_SUCCEEDED(rv)) {
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// No Adopt on nsACString :(
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_retval.Assign(str, len);
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nsMemory::Free(str);
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}
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return rv;
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}
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/* AString ConvertToUnicode (in ACString src); */
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NS_IMETHODIMP
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nsScriptableUnicodeConverter::ConvertToUnicode(const nsACString& aSrc, nsAString& _retval)
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{
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nsACString::const_iterator i;
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aSrc.BeginReading(i);
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return ConvertFromByteArray(reinterpret_cast<const PRUint8*>(i.get()),
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aSrc.Length(),
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_retval);
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}
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/* AString convertFromByteArray([const,array,size_is(aCount)] in octet aData,
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in unsigned long aCount);
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*/
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NS_IMETHODIMP
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nsScriptableUnicodeConverter::ConvertFromByteArray(const PRUint8* aData,
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PRUint32 aCount,
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nsAString& _retval)
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{
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if (!mDecoder)
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return NS_ERROR_FAILURE;
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nsresult rv = NS_OK;
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PRInt32 inLength = aCount;
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PRInt32 outLength;
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rv = mDecoder->GetMaxLength(reinterpret_cast<const char*>(aData),
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inLength, &outLength);
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if (NS_SUCCEEDED(rv))
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{
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PRUnichar* buf = (PRUnichar*) nsMemory::Alloc((outLength+1)*sizeof(PRUnichar));
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if (!buf)
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return NS_ERROR_OUT_OF_MEMORY;
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rv = mDecoder->Convert(reinterpret_cast<const char*>(aData),
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&inLength, buf, &outLength);
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if (NS_SUCCEEDED(rv))
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{
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buf[outLength] = 0;
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_retval.Assign(buf, outLength);
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}
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nsMemory::Free(buf);
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return rv;
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}
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return NS_ERROR_FAILURE;
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}
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/* void convertToByteArray(in AString aString,
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[optional] out unsigned long aLen,
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[array, size_is(aLen),retval] out octet aData);
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*/
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NS_IMETHODIMP
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nsScriptableUnicodeConverter::ConvertToByteArray(const nsAString& aString,
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PRUint32* aLen,
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PRUint8** _aData)
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{
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char* data;
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PRInt32 len;
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nsresult rv = ConvertFromUnicodeWithLength(aString, &len, &data);
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if (NS_FAILED(rv))
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return rv;
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nsXPIDLCString str;
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str.Adopt(data, len); // NOTE: This uses the XPIDLCString as a byte array
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rv = FinishWithLength(&data, &len);
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if (NS_FAILED(rv))
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return rv;
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str.Append(data, len);
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nsMemory::Free(data);
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// NOTE: this being a byte array, it needs no null termination
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*_aData = reinterpret_cast<PRUint8*>
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(nsMemory::Clone(str.get(), str.Length()));
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if (!*_aData)
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return NS_ERROR_OUT_OF_MEMORY;
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*aLen = str.Length();
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return NS_OK;
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}
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/* nsIInputStream convertToInputStream(in AString aString); */
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NS_IMETHODIMP
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nsScriptableUnicodeConverter::ConvertToInputStream(const nsAString& aString,
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nsIInputStream** _retval)
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{
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nsresult rv;
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nsCOMPtr<nsIStringInputStream> inputStream =
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do_CreateInstance("@mozilla.org/io/string-input-stream;1", &rv);
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if (NS_FAILED(rv))
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return rv;
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PRUint8* data;
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PRUint32 dataLen;
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rv = ConvertToByteArray(aString, &dataLen, &data);
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if (NS_FAILED(rv))
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return rv;
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rv = inputStream->AdoptData(reinterpret_cast<char*>(data), dataLen);
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if (NS_FAILED(rv)) {
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nsMemory::Free(data);
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return rv;
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}
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NS_ADDREF(*_retval = inputStream);
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return rv;
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}
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/* attribute string charset; */
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NS_IMETHODIMP
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nsScriptableUnicodeConverter::GetCharset(char * *aCharset)
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{
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*aCharset = ToNewCString(mCharset);
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if (!*aCharset)
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return NS_ERROR_OUT_OF_MEMORY;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsScriptableUnicodeConverter::SetCharset(const char * aCharset)
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{
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mCharset.Assign(aCharset);
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return InitConverter();
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}
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nsresult
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nsScriptableUnicodeConverter::InitConverter()
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{
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nsresult rv = NS_OK;
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mEncoder = NULL ;
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nsCOMPtr<nsICharsetConverterManager> ccm = do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &rv);
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if (NS_SUCCEEDED( rv) && (nsnull != ccm)) {
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// get charset atom due to getting unicode converter
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// get an unicode converter
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rv = ccm->GetUnicodeEncoder(mCharset.get(), getter_AddRefs(mEncoder));
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if(NS_SUCCEEDED(rv)) {
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rv = mEncoder->SetOutputErrorBehavior(nsIUnicodeEncoder::kOnError_Replace, nsnull, (PRUnichar)'?');
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if(NS_SUCCEEDED(rv)) {
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rv = ccm->GetUnicodeDecoder(mCharset.get(), getter_AddRefs(mDecoder));
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}
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}
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}
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return rv ;
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}
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