/extensions/spellcheck/src/mozPersonalDictionary.cpp
http://github.com/zpao/v8monkey · C++ · 299 lines · 182 code · 50 blank · 67 comment · 46 complexity · a29252b65ad45b35e798b622cfcdf360 MD5 · raw file
- /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Mozilla Spellchecker Component.
- *
- * The Initial Developer of the Original Code is
- * David Einstein.
- * Portions created by the Initial Developer are Copyright (C) 2001
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s): David Einstein <Deinst@world.std.com>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
- #include "mozPersonalDictionary.h"
- #include "nsIUnicharInputStream.h"
- #include "nsReadableUtils.h"
- #include "nsIFile.h"
- #include "nsAppDirectoryServiceDefs.h"
- #include "nsICharsetConverterManager.h"
- #include "nsICharsetAlias.h"
- #include "nsIObserverService.h"
- #include "nsIPrefService.h"
- #include "nsIPrefBranch.h"
- #include "nsIWeakReference.h"
- #include "nsCRT.h"
- #include "nsNetUtil.h"
- #include "nsStringEnumerator.h"
- #include "nsUnicharInputStream.h"
- #define MOZ_PERSONAL_DICT_NAME "persdict.dat"
- const int kMaxWordLen=256;
- /**
- * This is the most braindead implementation of a personal dictionary possible.
- * There is not much complexity needed, though. It could be made much faster,
- * and probably should, but I don't see much need for more in terms of interface.
- *
- * Allowing personal words to be associated with only certain dictionaries maybe.
- *
- * TODO:
- * Implement the suggestion record.
- */
- NS_IMPL_CYCLE_COLLECTING_ADDREF(mozPersonalDictionary)
- NS_IMPL_CYCLE_COLLECTING_RELEASE(mozPersonalDictionary)
- NS_INTERFACE_MAP_BEGIN(mozPersonalDictionary)
- NS_INTERFACE_MAP_ENTRY(mozIPersonalDictionary)
- NS_INTERFACE_MAP_ENTRY(nsIObserver)
- NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
- NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, mozIPersonalDictionary)
- NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(mozPersonalDictionary)
- NS_INTERFACE_MAP_END
- NS_IMPL_CYCLE_COLLECTION_1(mozPersonalDictionary, mEncoder)
- mozPersonalDictionary::mozPersonalDictionary()
- : mDirty(false)
- {
- }
- mozPersonalDictionary::~mozPersonalDictionary()
- {
- }
- nsresult mozPersonalDictionary::Init()
- {
- if (!mDictionaryTable.Init() || !mIgnoreTable.Init())
- return NS_ERROR_OUT_OF_MEMORY;
- nsresult rv;
- nsCOMPtr<nsIObserverService> svc =
- do_GetService("@mozilla.org/observer-service;1", &rv);
-
- if (NS_SUCCEEDED(rv) && svc)
- rv = svc->AddObserver(this, "profile-do-change", true); // we want to reload the dictionary if the profile switches
- if (NS_FAILED(rv)) return rv;
- Load();
-
- return NS_OK;
- }
- /* void Load (); */
- NS_IMETHODIMP mozPersonalDictionary::Load()
- {
- //FIXME Deinst -- get dictionary name from prefs;
- nsresult res;
- nsCOMPtr<nsIFile> theFile;
- bool dictExists;
- res = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(theFile));
- if(NS_FAILED(res)) return res;
- if(!theFile)return NS_ERROR_FAILURE;
- res = theFile->Append(NS_LITERAL_STRING(MOZ_PERSONAL_DICT_NAME));
- if(NS_FAILED(res)) return res;
- res = theFile->Exists(&dictExists);
- if(NS_FAILED(res)) return res;
- if (!dictExists) {
- // Nothing is really wrong...
- return NS_OK;
- }
-
- nsCOMPtr<nsIInputStream> inStream;
- NS_NewLocalFileInputStream(getter_AddRefs(inStream), theFile);
- nsCOMPtr<nsIUnicharInputStream> convStream;
- res = nsSimpleUnicharStreamFactory::GetInstance()->
- CreateInstanceFromUTF8Stream(inStream, getter_AddRefs(convStream));
- if(NS_FAILED(res)) return res;
-
- // we're rereading to get rid of the old data -- we shouldn't have any, but...
- mDictionaryTable.Clear();
- PRUnichar c;
- PRUint32 nRead;
- bool done = false;
- do{ // read each line of text into the string array.
- if( (NS_OK != convStream->Read(&c, 1, &nRead)) || (nRead != 1)) break;
- while(!done && ((c == '\n') || (c == '\r'))){
- if( (NS_OK != convStream->Read(&c, 1, &nRead)) || (nRead != 1)) done = true;
- }
- if (!done){
- nsAutoString word;
- while((c != '\n') && (c != '\r') && !done){
- word.Append(c);
- if( (NS_OK != convStream->Read(&c, 1, &nRead)) || (nRead != 1)) done = true;
- }
- mDictionaryTable.PutEntry(word.get());
- }
- } while(!done);
- mDirty = false;
-
- return res;
- }
- // A little helper function to add the key to the list.
- // This is not threadsafe, and only safe if the consumer does not
- // modify the list.
- static PLDHashOperator
- AddHostToStringArray(nsUnicharPtrHashKey *aEntry, void *aArg)
- {
- static_cast<nsTArray<nsString>*>(aArg)->AppendElement(nsDependentString(aEntry->GetKey()));
- return PL_DHASH_NEXT;
- }
- /* void Save (); */
- NS_IMETHODIMP mozPersonalDictionary::Save()
- {
- nsCOMPtr<nsIFile> theFile;
- nsresult res;
- if(!mDirty) return NS_OK;
- //FIXME Deinst -- get dictionary name from prefs;
- res = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(theFile));
- if(NS_FAILED(res)) return res;
- if(!theFile)return NS_ERROR_FAILURE;
- res = theFile->Append(NS_LITERAL_STRING(MOZ_PERSONAL_DICT_NAME));
- if(NS_FAILED(res)) return res;
- nsCOMPtr<nsIOutputStream> outStream;
- NS_NewLocalFileOutputStream(getter_AddRefs(outStream), theFile, PR_CREATE_FILE | PR_WRONLY | PR_TRUNCATE ,0664);
- // get a buffered output stream 4096 bytes big, to optimize writes
- nsCOMPtr<nsIOutputStream> bufferedOutputStream;
- res = NS_NewBufferedOutputStream(getter_AddRefs(bufferedOutputStream), outStream, 4096);
- if (NS_FAILED(res)) return res;
- nsTArray<nsString> array(mDictionaryTable.Count());
- mDictionaryTable.EnumerateEntries(AddHostToStringArray, &array);
- PRUint32 bytesWritten;
- nsCAutoString utf8Key;
- for (PRUint32 i = 0; i < array.Length(); ++i ) {
- CopyUTF16toUTF8(array[i], utf8Key);
- bufferedOutputStream->Write(utf8Key.get(), utf8Key.Length(), &bytesWritten);
- bufferedOutputStream->Write("\n", 1, &bytesWritten);
- }
- return res;
- }
- /* readonly attribute nsIStringEnumerator GetWordList() */
- NS_IMETHODIMP mozPersonalDictionary::GetWordList(nsIStringEnumerator **aWords)
- {
- NS_ENSURE_ARG_POINTER(aWords);
- *aWords = nsnull;
- nsTArray<nsString> *array = new nsTArray<nsString>(mDictionaryTable.Count());
- if (!array)
- return NS_ERROR_OUT_OF_MEMORY;
- mDictionaryTable.EnumerateEntries(AddHostToStringArray, array);
- array->Sort();
- return NS_NewAdoptingStringEnumerator(aWords, array);
- }
- /* boolean Check (in wstring word, in wstring language); */
- NS_IMETHODIMP mozPersonalDictionary::Check(const PRUnichar *aWord, const PRUnichar *aLanguage, bool *aResult)
- {
- NS_ENSURE_ARG_POINTER(aWord);
- NS_ENSURE_ARG_POINTER(aResult);
- *aResult = (mDictionaryTable.GetEntry(aWord) || mIgnoreTable.GetEntry(aWord));
- return NS_OK;
- }
- /* void AddWord (in wstring word); */
- NS_IMETHODIMP mozPersonalDictionary::AddWord(const PRUnichar *aWord, const PRUnichar *aLang)
- {
- mDictionaryTable.PutEntry(aWord);
- mDirty = true;
- return NS_OK;
- }
- /* void RemoveWord (in wstring word); */
- NS_IMETHODIMP mozPersonalDictionary::RemoveWord(const PRUnichar *aWord, const PRUnichar *aLang)
- {
- mDictionaryTable.RemoveEntry(aWord);
- mDirty = true;
- return NS_OK;
- }
- /* void IgnoreWord (in wstring word); */
- NS_IMETHODIMP mozPersonalDictionary::IgnoreWord(const PRUnichar *aWord)
- {
- // avoid adding duplicate words to the ignore list
- if (aWord && !mIgnoreTable.GetEntry(aWord))
- mIgnoreTable.PutEntry(aWord);
- return NS_OK;
- }
- /* void EndSession (); */
- NS_IMETHODIMP mozPersonalDictionary::EndSession()
- {
- Save(); // save any custom words at the end of a spell check session
- mIgnoreTable.Clear();
- return NS_OK;
- }
- /* void AddCorrection (in wstring word, in wstring correction); */
- NS_IMETHODIMP mozPersonalDictionary::AddCorrection(const PRUnichar *word, const PRUnichar *correction, const PRUnichar *lang)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
- /* void RemoveCorrection (in wstring word, in wstring correction); */
- NS_IMETHODIMP mozPersonalDictionary::RemoveCorrection(const PRUnichar *word, const PRUnichar *correction, const PRUnichar *lang)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
- /* void GetCorrection (in wstring word, [array, size_is (count)] out wstring words, out PRUint32 count); */
- NS_IMETHODIMP mozPersonalDictionary::GetCorrection(const PRUnichar *word, PRUnichar ***words, PRUint32 *count)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
- /* void observe (in nsISupports aSubject, in string aTopic, in wstring aData); */
- NS_IMETHODIMP mozPersonalDictionary::Observe(nsISupports *aSubject, const char *aTopic, const PRUnichar *aData)
- {
- if (!nsCRT::strcmp(aTopic, "profile-do-change")) {
- Load(); // load automatically clears out the existing dictionary table
- }
- return NS_OK;
- }