mirror of
https://github.com/classilla/tenfourfox.git
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589 lines
17 KiB
C++
589 lines
17 KiB
C++
/******* 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 Initial Developers of the Original Code are Kevin Hendricks (MySpell)
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* and László Németh (Hunspell). Portions created by the Initial Developers
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* are Copyright (C) 2002-2005 the Initial Developers. All Rights Reserved.
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*
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* Contributor(s): Kevin Hendricks (kevin.hendricks@sympatico.ca)
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* David Einstein (deinst@world.std.com)
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* Michiel van Leeuwen (mvl@exedo.nl)
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* Caolan McNamara (cmc@openoffice.org)
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* László Németh (nemethl@gyorsposta.hu)
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* Davide Prina
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* Giuseppe Modugno
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* Gianluca Turconi
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* Simon Brouwer
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* Noll Janos
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* Biro Arpad
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* Goldman Eleonora
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* Sarlos Tamas
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* Bencsath Boldizsar
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* Halacsy Peter
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* Dvornik Laszlo
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* Gefferth Andras
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* Nagy Viktor
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* Varga Daniel
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* Chris Halls
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* Rene Engelhard
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* Bram Moolenaar
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* Dafydd Jones
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* Harri Pitkanen
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* Andras Timar
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* Tor Lillqvist
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* Jesper Kristensen (mail@jesperkristensen.dk)
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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 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 "mozHunspell.h"
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#include "nsReadableUtils.h"
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#include "nsXPIDLString.h"
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#include "nsIObserverService.h"
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#include "nsISimpleEnumerator.h"
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#include "nsIDirectoryEnumerator.h"
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#include "nsIFile.h"
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#include "nsDirectoryServiceUtils.h"
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#include "nsDirectoryServiceDefs.h"
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#include "mozISpellI18NManager.h"
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#include "nsUnicharUtilCIID.h"
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#include "nsUnicharUtils.h"
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#include "nsCRT.h"
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#include "mozInlineSpellChecker.h"
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#include "mozilla/Services.h"
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#include <stdlib.h>
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#include "nsIPrefService.h"
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#include "nsIPrefBranch.h"
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#include "mozilla/dom/EncodingUtils.h"
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#include "mozilla/dom/ContentParent.h"
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using mozilla::dom::ContentParent;
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using mozilla::dom::EncodingUtils;
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NS_IMPL_CYCLE_COLLECTING_ADDREF(mozHunspell)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(mozHunspell)
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NS_INTERFACE_MAP_BEGIN(mozHunspell)
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NS_INTERFACE_MAP_ENTRY(mozISpellCheckingEngine)
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NS_INTERFACE_MAP_ENTRY(nsIObserver)
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NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
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NS_INTERFACE_MAP_ENTRY(nsIMemoryReporter)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, mozISpellCheckingEngine)
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NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(mozHunspell)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTION(mozHunspell,
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mPersonalDictionary,
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mEncoder,
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mDecoder)
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template<> mozilla::Atomic<size_t> mozilla::CountingAllocatorBase<HunspellAllocator>::sAmount(0);
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mozHunspell::mozHunspell()
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: mHunspell(nullptr)
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{
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#ifdef DEBUG
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// There must be only one instance of this class: it reports memory based on
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// a single static count in HunspellAllocator.
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static bool hasRun = false;
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MOZ_ASSERT(!hasRun);
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hasRun = true;
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#endif
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}
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nsresult
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mozHunspell::Init()
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{
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LoadDictionaryList(false);
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nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
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if (obs) {
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obs->AddObserver(this, "profile-do-change", true);
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obs->AddObserver(this, "profile-after-change", true);
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}
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mozilla::RegisterWeakMemoryReporter(this);
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return NS_OK;
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}
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mozHunspell::~mozHunspell()
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{
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mozilla::UnregisterWeakMemoryReporter(this);
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mPersonalDictionary = nullptr;
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delete mHunspell;
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}
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NS_IMETHODIMP mozHunspell::GetDictionary(char16_t **aDictionary)
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{
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NS_ENSURE_ARG_POINTER(aDictionary);
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*aDictionary = ToNewUnicode(mDictionary);
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return *aDictionary ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
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}
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/* set the Dictionary.
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* This also Loads the dictionary and initializes the converter using the dictionaries converter
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*/
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NS_IMETHODIMP mozHunspell::SetDictionary(const char16_t *aDictionary)
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{
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NS_ENSURE_ARG_POINTER(aDictionary);
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if (nsDependentString(aDictionary).IsEmpty()) {
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delete mHunspell;
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mHunspell = nullptr;
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mDictionary.Truncate();
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mAffixFileName.Truncate();
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mLanguage.Truncate();
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mDecoder = nullptr;
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mEncoder = nullptr;
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return NS_OK;
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}
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nsIFile* affFile = mDictionaries.GetWeak(nsDependentString(aDictionary));
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if (!affFile)
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return NS_ERROR_FILE_NOT_FOUND;
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nsAutoCString dictFileName, affFileName;
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// XXX This isn't really good. nsIFile->NativePath isn't safe for all
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// character sets on Windows.
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// A better way would be to QI to nsIFile, and get a filehandle
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// from there. Only problem is that hunspell wants a path
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nsresult rv = affFile->GetNativePath(affFileName);
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NS_ENSURE_SUCCESS(rv, rv);
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if (mAffixFileName.Equals(affFileName.get()))
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return NS_OK;
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dictFileName = affFileName;
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int32_t dotPos = dictFileName.RFindChar('.');
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if (dotPos == -1)
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return NS_ERROR_FAILURE;
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dictFileName.SetLength(dotPos);
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dictFileName.AppendLiteral(".dic");
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// SetDictionary can be called multiple times, so we might have a
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// valid mHunspell instance which needs cleaned up.
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delete mHunspell;
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mDictionary = aDictionary;
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mAffixFileName = affFileName;
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mHunspell = new Hunspell(affFileName.get(),
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dictFileName.get());
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if (!mHunspell)
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return NS_ERROR_OUT_OF_MEMORY;
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nsDependentCString label(mHunspell->get_dic_encoding());
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nsAutoCString encoding;
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if (!EncodingUtils::FindEncodingForLabelNoReplacement(label, encoding)) {
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return NS_ERROR_UCONV_NOCONV;
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}
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mEncoder = EncodingUtils::EncoderForEncoding(encoding);
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mDecoder = EncodingUtils::DecoderForEncoding(encoding);
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if (mEncoder)
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mEncoder->SetOutputErrorBehavior(mEncoder->kOnError_Signal, nullptr, '?');
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int32_t pos = mDictionary.FindChar('-');
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if (pos == -1)
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pos = mDictionary.FindChar('_');
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if (pos == -1)
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mLanguage.Assign(mDictionary);
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else
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mLanguage = Substring(mDictionary, 0, pos);
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return NS_OK;
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}
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NS_IMETHODIMP mozHunspell::GetLanguage(char16_t **aLanguage)
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{
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NS_ENSURE_ARG_POINTER(aLanguage);
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if (mDictionary.IsEmpty())
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return NS_ERROR_NOT_INITIALIZED;
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*aLanguage = ToNewUnicode(mLanguage);
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return *aLanguage ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
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}
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NS_IMETHODIMP mozHunspell::GetProvidesPersonalDictionary(bool *aProvidesPersonalDictionary)
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{
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NS_ENSURE_ARG_POINTER(aProvidesPersonalDictionary);
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*aProvidesPersonalDictionary = false;
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return NS_OK;
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}
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NS_IMETHODIMP mozHunspell::GetProvidesWordUtils(bool *aProvidesWordUtils)
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{
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NS_ENSURE_ARG_POINTER(aProvidesWordUtils);
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*aProvidesWordUtils = false;
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return NS_OK;
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}
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NS_IMETHODIMP mozHunspell::GetName(char16_t * *aName)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP mozHunspell::GetCopyright(char16_t * *aCopyright)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP mozHunspell::GetPersonalDictionary(mozIPersonalDictionary * *aPersonalDictionary)
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{
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*aPersonalDictionary = mPersonalDictionary;
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NS_IF_ADDREF(*aPersonalDictionary);
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return NS_OK;
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}
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NS_IMETHODIMP mozHunspell::SetPersonalDictionary(mozIPersonalDictionary * aPersonalDictionary)
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{
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mPersonalDictionary = aPersonalDictionary;
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return NS_OK;
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}
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NS_IMETHODIMP mozHunspell::GetDictionaryList(char16_t ***aDictionaries,
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uint32_t *aCount)
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{
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if (!aDictionaries || !aCount)
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return NS_ERROR_NULL_POINTER;
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uint32_t count = 0;
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char16_t** dicts =
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(char16_t**) moz_xmalloc(sizeof(char16_t*) * mDictionaries.Count());
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for (auto iter = mDictionaries.Iter(); !iter.Done(); iter.Next()) {
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dicts[count] = ToNewUnicode(iter.Key());
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if (!dicts[count]) {
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while (count) {
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--count;
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free(dicts[count]);
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}
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free(dicts);
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return NS_ERROR_OUT_OF_MEMORY;
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}
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++count;
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}
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*aDictionaries = dicts;
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*aCount = count;
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return NS_OK;
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}
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void
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mozHunspell::LoadDictionaryList(bool aNotifyChildProcesses)
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{
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mDictionaries.Clear();
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nsresult rv;
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nsCOMPtr<nsIProperties> dirSvc =
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do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID);
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if (!dirSvc)
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return;
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// find built in dictionaries, or dictionaries specified in
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// spellchecker.dictionary_path in prefs
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nsCOMPtr<nsIFile> dictDir;
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// check preferences first
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nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
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if (prefs) {
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nsCString extDictPath;
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rv = prefs->GetCharPref("spellchecker.dictionary_path", getter_Copies(extDictPath));
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if (NS_SUCCEEDED(rv)) {
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// set the spellchecker.dictionary_path
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rv = NS_NewNativeLocalFile(extDictPath, true, getter_AddRefs(dictDir));
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}
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}
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if (!dictDir) {
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// spellcheck.dictionary_path not found, set internal path
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rv = dirSvc->Get(DICTIONARY_SEARCH_DIRECTORY,
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NS_GET_IID(nsIFile), getter_AddRefs(dictDir));
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}
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if (dictDir) {
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LoadDictionariesFromDir(dictDir);
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}
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else {
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// try to load gredir/dictionaries
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nsCOMPtr<nsIFile> greDir;
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rv = dirSvc->Get(NS_GRE_DIR,
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NS_GET_IID(nsIFile), getter_AddRefs(greDir));
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if (NS_SUCCEEDED(rv)) {
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greDir->AppendNative(NS_LITERAL_CSTRING("dictionaries"));
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LoadDictionariesFromDir(greDir);
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}
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// try to load appdir/dictionaries only if different than gredir
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nsCOMPtr<nsIFile> appDir;
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rv = dirSvc->Get(NS_XPCOM_CURRENT_PROCESS_DIR,
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NS_GET_IID(nsIFile), getter_AddRefs(appDir));
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bool equals;
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if (NS_SUCCEEDED(rv) && NS_SUCCEEDED(appDir->Equals(greDir, &equals)) && !equals) {
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appDir->AppendNative(NS_LITERAL_CSTRING("dictionaries"));
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LoadDictionariesFromDir(appDir);
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}
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}
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// find dictionaries from extensions requiring restart
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nsCOMPtr<nsISimpleEnumerator> dictDirs;
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rv = dirSvc->Get(DICTIONARY_SEARCH_DIRECTORY_LIST,
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NS_GET_IID(nsISimpleEnumerator), getter_AddRefs(dictDirs));
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if (NS_FAILED(rv))
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return;
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bool hasMore;
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while (NS_SUCCEEDED(dictDirs->HasMoreElements(&hasMore)) && hasMore) {
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nsCOMPtr<nsISupports> elem;
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dictDirs->GetNext(getter_AddRefs(elem));
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dictDir = do_QueryInterface(elem);
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if (dictDir)
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LoadDictionariesFromDir(dictDir);
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}
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// find dictionaries from restartless extensions
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for (int32_t i = 0; i < mDynamicDirectories.Count(); i++) {
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LoadDictionariesFromDir(mDynamicDirectories[i]);
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}
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// Now we have finished updating the list of dictionaries, update the current
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// dictionary and any editors which may use it.
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mozInlineSpellChecker::UpdateCanEnableInlineSpellChecking();
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if (aNotifyChildProcesses) {
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ContentParent::NotifyUpdatedDictionaries();
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}
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// Check if the current dictionary is still available.
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// If not, try to replace it with another dictionary of the same language.
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if (!mDictionary.IsEmpty()) {
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rv = SetDictionary(mDictionary.get());
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if (NS_SUCCEEDED(rv))
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return;
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}
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// If the current dictionary has gone, and we don't have a good replacement,
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// set no current dictionary.
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if (!mDictionary.IsEmpty()) {
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SetDictionary(EmptyString().get());
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}
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}
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NS_IMETHODIMP
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mozHunspell::LoadDictionariesFromDir(nsIFile* aDir)
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{
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nsresult rv;
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bool check = false;
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rv = aDir->Exists(&check);
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if (NS_FAILED(rv) || !check)
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return NS_ERROR_UNEXPECTED;
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rv = aDir->IsDirectory(&check);
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if (NS_FAILED(rv) || !check)
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return NS_ERROR_UNEXPECTED;
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nsCOMPtr<nsISimpleEnumerator> e;
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rv = aDir->GetDirectoryEntries(getter_AddRefs(e));
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if (NS_FAILED(rv))
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return NS_ERROR_UNEXPECTED;
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nsCOMPtr<nsIDirectoryEnumerator> files(do_QueryInterface(e));
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if (!files)
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return NS_ERROR_UNEXPECTED;
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nsCOMPtr<nsIFile> file;
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while (NS_SUCCEEDED(files->GetNextFile(getter_AddRefs(file))) && file) {
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nsAutoString leafName;
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file->GetLeafName(leafName);
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if (!StringEndsWith(leafName, NS_LITERAL_STRING(".dic")))
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continue;
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nsAutoString dict(leafName);
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dict.SetLength(dict.Length() - 4); // magic length of ".dic"
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// check for the presence of the .aff file
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leafName = dict;
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leafName.AppendLiteral(".aff");
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file->SetLeafName(leafName);
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rv = file->Exists(&check);
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if (NS_FAILED(rv) || !check)
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continue;
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#ifdef DEBUG_bsmedberg
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printf("Adding dictionary: %s\n", NS_ConvertUTF16toUTF8(dict).get());
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#endif
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// Replace '_' separator with '-'
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dict.ReplaceChar("_", '-');
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mDictionaries.Put(dict, file);
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}
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return NS_OK;
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}
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nsresult mozHunspell::ConvertCharset(const char16_t* aStr, char ** aDst)
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{
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NS_ENSURE_ARG_POINTER(aDst);
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NS_ENSURE_TRUE(mEncoder, NS_ERROR_NULL_POINTER);
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int32_t outLength;
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int32_t inLength = NS_strlen(aStr);
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nsresult rv = mEncoder->GetMaxLength(aStr, inLength, &outLength);
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NS_ENSURE_SUCCESS(rv, rv);
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*aDst = (char *) moz_xmalloc(sizeof(char) * (outLength+1));
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NS_ENSURE_TRUE(*aDst, NS_ERROR_OUT_OF_MEMORY);
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rv = mEncoder->Convert(aStr, &inLength, *aDst, &outLength);
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if (NS_SUCCEEDED(rv))
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(*aDst)[outLength] = '\0';
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return rv;
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}
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NS_IMETHODIMP mozHunspell::Check(const char16_t *aWord, bool *aResult)
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{
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NS_ENSURE_ARG_POINTER(aWord);
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NS_ENSURE_ARG_POINTER(aResult);
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NS_ENSURE_TRUE(mHunspell, NS_ERROR_FAILURE);
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nsXPIDLCString charsetWord;
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nsresult rv = ConvertCharset(aWord, getter_Copies(charsetWord));
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NS_ENSURE_SUCCESS(rv, rv);
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*aResult = !!mHunspell->spell(charsetWord);
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if (!*aResult && mPersonalDictionary)
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rv = mPersonalDictionary->Check(aWord, mLanguage.get(), aResult);
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return rv;
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}
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NS_IMETHODIMP mozHunspell::Suggest(const char16_t *aWord, char16_t ***aSuggestions, uint32_t *aSuggestionCount)
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{
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NS_ENSURE_ARG_POINTER(aSuggestions);
|
|
NS_ENSURE_ARG_POINTER(aSuggestionCount);
|
|
NS_ENSURE_TRUE(mHunspell, NS_ERROR_FAILURE);
|
|
|
|
nsresult rv;
|
|
*aSuggestionCount = 0;
|
|
|
|
nsXPIDLCString charsetWord;
|
|
rv = ConvertCharset(aWord, getter_Copies(charsetWord));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
char ** wlst;
|
|
*aSuggestionCount = mHunspell->suggest(&wlst, charsetWord);
|
|
|
|
if (*aSuggestionCount) {
|
|
*aSuggestions = (char16_t **)moz_xmalloc(*aSuggestionCount * sizeof(char16_t *));
|
|
if (*aSuggestions) {
|
|
uint32_t index = 0;
|
|
for (index = 0; index < *aSuggestionCount && NS_SUCCEEDED(rv); ++index) {
|
|
// Convert the suggestion to utf16
|
|
int32_t inLength = strlen(wlst[index]);
|
|
int32_t outLength;
|
|
rv = mDecoder->GetMaxLength(wlst[index], inLength, &outLength);
|
|
if (NS_SUCCEEDED(rv))
|
|
{
|
|
(*aSuggestions)[index] = (char16_t *) moz_xmalloc(sizeof(char16_t) * (outLength+1));
|
|
if ((*aSuggestions)[index])
|
|
{
|
|
rv = mDecoder->Convert(wlst[index], &inLength, (*aSuggestions)[index], &outLength);
|
|
if (NS_SUCCEEDED(rv))
|
|
(*aSuggestions)[index][outLength] = 0;
|
|
}
|
|
else
|
|
rv = NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
|
|
if (NS_FAILED(rv))
|
|
NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(index, *aSuggestions); // free the char16_t strings up to the point at which the error occurred
|
|
}
|
|
else // if (*aSuggestions)
|
|
rv = NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(*aSuggestionCount, wlst);
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
mozHunspell::Observe(nsISupports* aSubj, const char *aTopic,
|
|
const char16_t *aData)
|
|
{
|
|
NS_ASSERTION(!strcmp(aTopic, "profile-do-change")
|
|
|| !strcmp(aTopic, "profile-after-change"),
|
|
"Unexpected observer topic");
|
|
|
|
LoadDictionaryList(false);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP mozHunspell::AddDirectory(nsIFile *aDir)
|
|
{
|
|
mDynamicDirectories.AppendObject(aDir);
|
|
LoadDictionaryList(true);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP mozHunspell::RemoveDirectory(nsIFile *aDir)
|
|
{
|
|
mDynamicDirectories.RemoveObject(aDir);
|
|
LoadDictionaryList(true);
|
|
|
|
#ifdef MOZ_THUNDERBIRD
|
|
/*
|
|
* This notification is needed for Thunderbird. Thunderbird derives the dictionary
|
|
* from the document's "lang" attribute. If a dictionary is removed,
|
|
* we need to change the "lang" attribute.
|
|
*/
|
|
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
|
|
if (obs) {
|
|
obs->NotifyObservers(nullptr,
|
|
SPELLCHECK_DICTIONARY_REMOVE_NOTIFICATION,
|
|
nullptr);
|
|
}
|
|
#endif
|
|
return NS_OK;
|
|
}
|