summaryrefslogtreecommitdiffstats
path: root/extensions/spellcheck/hunspell/glue/mozHunspell.cpp
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /extensions/spellcheck/hunspell/glue/mozHunspell.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'extensions/spellcheck/hunspell/glue/mozHunspell.cpp')
-rw-r--r--extensions/spellcheck/hunspell/glue/mozHunspell.cpp623
1 files changed, 623 insertions, 0 deletions
diff --git a/extensions/spellcheck/hunspell/glue/mozHunspell.cpp b/extensions/spellcheck/hunspell/glue/mozHunspell.cpp
new file mode 100644
index 000000000..87ffbc661
--- /dev/null
+++ b/extensions/spellcheck/hunspell/glue/mozHunspell.cpp
@@ -0,0 +1,623 @@
+/******* 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 Initial Developers of the Original Code are Kevin Hendricks (MySpell)
+ * and László Németh (Hunspell). Portions created by the Initial Developers
+ * are Copyright (C) 2002-2005 the Initial Developers. All Rights Reserved.
+ *
+ * Contributor(s): Kevin Hendricks (kevin.hendricks@sympatico.ca)
+ * David Einstein (deinst@world.std.com)
+ * Michiel van Leeuwen (mvl@exedo.nl)
+ * Caolan McNamara (cmc@openoffice.org)
+ * László Németh (nemethl@gyorsposta.hu)
+ * Davide Prina
+ * Giuseppe Modugno
+ * Gianluca Turconi
+ * Simon Brouwer
+ * Noll Janos
+ * Biro Arpad
+ * Goldman Eleonora
+ * Sarlos Tamas
+ * Bencsath Boldizsar
+ * Halacsy Peter
+ * Dvornik Laszlo
+ * Gefferth Andras
+ * Nagy Viktor
+ * Varga Daniel
+ * Chris Halls
+ * Rene Engelhard
+ * Bram Moolenaar
+ * Dafydd Jones
+ * Harri Pitkanen
+ * Andras Timar
+ * Tor Lillqvist
+ * Jesper Kristensen (mail@jesperkristensen.dk)
+ *
+ * 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 "mozHunspell.h"
+#include "nsReadableUtils.h"
+#include "nsXPIDLString.h"
+#include "nsIObserverService.h"
+#include "nsISimpleEnumerator.h"
+#include "nsIDirectoryEnumerator.h"
+#include "nsIFile.h"
+#include "nsDirectoryServiceUtils.h"
+#include "nsDirectoryServiceDefs.h"
+#include "mozISpellI18NManager.h"
+#include "nsUnicharUtilCIID.h"
+#include "nsUnicharUtils.h"
+#include "nsCRT.h"
+#include "mozInlineSpellChecker.h"
+#include "mozilla/Services.h"
+#include <stdlib.h>
+#include "nsIPrefService.h"
+#include "nsIPrefBranch.h"
+#include "mozilla/dom/EncodingUtils.h"
+#include "mozilla/dom/ContentParent.h"
+
+using mozilla::dom::ContentParent;
+using mozilla::dom::EncodingUtils;
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(mozHunspell)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(mozHunspell)
+
+NS_INTERFACE_MAP_BEGIN(mozHunspell)
+ NS_INTERFACE_MAP_ENTRY(mozISpellCheckingEngine)
+ NS_INTERFACE_MAP_ENTRY(nsIObserver)
+ NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
+ NS_INTERFACE_MAP_ENTRY(nsIMemoryReporter)
+ NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, mozISpellCheckingEngine)
+ NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(mozHunspell)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTION(mozHunspell,
+ mPersonalDictionary,
+ mEncoder,
+ mDecoder)
+
+template<> mozilla::Atomic<size_t> mozilla::CountingAllocatorBase<HunspellAllocator>::sAmount(0);
+
+mozHunspell::mozHunspell()
+ : mHunspell(nullptr)
+{
+#ifdef DEBUG
+ // There must be only one instance of this class: it reports memory based on
+ // a single static count in HunspellAllocator.
+ static bool hasRun = false;
+ MOZ_ASSERT(!hasRun);
+ hasRun = true;
+#endif
+}
+
+nsresult
+mozHunspell::Init()
+{
+ LoadDictionaryList(false);
+
+ nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
+ if (obs) {
+ obs->AddObserver(this, "profile-do-change", true);
+ obs->AddObserver(this, "profile-after-change", true);
+ }
+
+ mozilla::RegisterWeakMemoryReporter(this);
+
+ return NS_OK;
+}
+
+mozHunspell::~mozHunspell()
+{
+ mozilla::UnregisterWeakMemoryReporter(this);
+
+ mPersonalDictionary = nullptr;
+ delete mHunspell;
+}
+
+NS_IMETHODIMP mozHunspell::GetDictionary(char16_t **aDictionary)
+{
+ NS_ENSURE_ARG_POINTER(aDictionary);
+
+ *aDictionary = ToNewUnicode(mDictionary);
+ return *aDictionary ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
+}
+
+/* set the Dictionary.
+ * This also Loads the dictionary and initializes the converter using the dictionaries converter
+ */
+NS_IMETHODIMP mozHunspell::SetDictionary(const char16_t *aDictionary)
+{
+ NS_ENSURE_ARG_POINTER(aDictionary);
+
+ if (nsDependentString(aDictionary).IsEmpty()) {
+ delete mHunspell;
+ mHunspell = nullptr;
+ mDictionary.Truncate();
+ mAffixFileName.Truncate();
+ mLanguage.Truncate();
+ mDecoder = nullptr;
+ mEncoder = nullptr;
+
+ return NS_OK;
+ }
+
+ nsIFile* affFile = mDictionaries.GetWeak(nsDependentString(aDictionary));
+ if (!affFile)
+ return NS_ERROR_FILE_NOT_FOUND;
+
+ nsAutoCString dictFileName, affFileName;
+
+ // XXX This isn't really good. nsIFile->NativePath isn't safe for all
+ // character sets on Windows.
+ // A better way would be to QI to nsIFile, and get a filehandle
+ // from there. Only problem is that hunspell wants a path
+
+ nsresult rv = affFile->GetNativePath(affFileName);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (mAffixFileName.Equals(affFileName.get()))
+ return NS_OK;
+
+ dictFileName = affFileName;
+ int32_t dotPos = dictFileName.RFindChar('.');
+ if (dotPos == -1)
+ return NS_ERROR_FAILURE;
+
+ dictFileName.SetLength(dotPos);
+ dictFileName.AppendLiteral(".dic");
+
+ // SetDictionary can be called multiple times, so we might have a
+ // valid mHunspell instance which needs cleaned up.
+ delete mHunspell;
+
+ mDictionary = aDictionary;
+ mAffixFileName = affFileName;
+
+ mHunspell = new Hunspell(affFileName.get(),
+ dictFileName.get());
+ if (!mHunspell)
+ return NS_ERROR_OUT_OF_MEMORY;
+
+ nsDependentCString label(mHunspell->get_dic_encoding());
+ nsAutoCString encoding;
+ if (!EncodingUtils::FindEncodingForLabelNoReplacement(label, encoding)) {
+ return NS_ERROR_UCONV_NOCONV;
+ }
+ mEncoder = EncodingUtils::EncoderForEncoding(encoding);
+ mDecoder = EncodingUtils::DecoderForEncoding(encoding);
+
+ if (mEncoder)
+ mEncoder->SetOutputErrorBehavior(mEncoder->kOnError_Signal, nullptr, '?');
+
+ int32_t pos = mDictionary.FindChar('-');
+ if (pos == -1)
+ pos = mDictionary.FindChar('_');
+
+ if (pos == -1)
+ mLanguage.Assign(mDictionary);
+ else
+ mLanguage = Substring(mDictionary, 0, pos);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP mozHunspell::GetLanguage(char16_t **aLanguage)
+{
+ NS_ENSURE_ARG_POINTER(aLanguage);
+
+ if (mDictionary.IsEmpty())
+ return NS_ERROR_NOT_INITIALIZED;
+
+ *aLanguage = ToNewUnicode(mLanguage);
+ return *aLanguage ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
+}
+
+NS_IMETHODIMP mozHunspell::GetProvidesPersonalDictionary(bool *aProvidesPersonalDictionary)
+{
+ NS_ENSURE_ARG_POINTER(aProvidesPersonalDictionary);
+
+ *aProvidesPersonalDictionary = false;
+ return NS_OK;
+}
+
+NS_IMETHODIMP mozHunspell::GetProvidesWordUtils(bool *aProvidesWordUtils)
+{
+ NS_ENSURE_ARG_POINTER(aProvidesWordUtils);
+
+ *aProvidesWordUtils = false;
+ return NS_OK;
+}
+
+NS_IMETHODIMP mozHunspell::GetName(char16_t * *aName)
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP mozHunspell::GetCopyright(char16_t * *aCopyright)
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP mozHunspell::GetPersonalDictionary(mozIPersonalDictionary * *aPersonalDictionary)
+{
+ *aPersonalDictionary = mPersonalDictionary;
+ NS_IF_ADDREF(*aPersonalDictionary);
+ return NS_OK;
+}
+
+NS_IMETHODIMP mozHunspell::SetPersonalDictionary(mozIPersonalDictionary * aPersonalDictionary)
+{
+ mPersonalDictionary = aPersonalDictionary;
+ return NS_OK;
+}
+
+NS_IMETHODIMP mozHunspell::GetDictionaryList(char16_t ***aDictionaries,
+ uint32_t *aCount)
+{
+ if (!aDictionaries || !aCount)
+ return NS_ERROR_NULL_POINTER;
+
+ uint32_t count = 0;
+ char16_t** dicts =
+ (char16_t**) moz_xmalloc(sizeof(char16_t*) * mDictionaries.Count());
+
+ for (auto iter = mDictionaries.Iter(); !iter.Done(); iter.Next()) {
+ dicts[count] = ToNewUnicode(iter.Key());
+ if (!dicts[count]) {
+ while (count) {
+ --count;
+ free(dicts[count]);
+ }
+ free(dicts);
+ return NS_ERROR_OUT_OF_MEMORY;
+ }
+
+ ++count;
+ }
+
+ *aDictionaries = dicts;
+ *aCount = count;
+
+ return NS_OK;
+}
+
+void
+mozHunspell::LoadDictionaryList(bool aNotifyChildProcesses)
+{
+ mDictionaries.Clear();
+
+ nsresult rv;
+
+ nsCOMPtr<nsIProperties> dirSvc =
+ do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID);
+ if (!dirSvc)
+ return;
+
+ // find built in dictionaries, or dictionaries specified in
+ // spellchecker.dictionary_path in prefs
+ nsCOMPtr<nsIFile> dictDir;
+
+ // check preferences first
+ nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
+ if (prefs) {
+ nsCString extDictPath;
+ rv = prefs->GetCharPref("spellchecker.dictionary_path", getter_Copies(extDictPath));
+ if (NS_SUCCEEDED(rv)) {
+ // set the spellchecker.dictionary_path
+ rv = NS_NewNativeLocalFile(extDictPath, true, getter_AddRefs(dictDir));
+ }
+ }
+ if (!dictDir) {
+ // spellcheck.dictionary_path not found, set internal path
+ rv = dirSvc->Get(DICTIONARY_SEARCH_DIRECTORY,
+ NS_GET_IID(nsIFile), getter_AddRefs(dictDir));
+ }
+ if (dictDir) {
+ LoadDictionariesFromDir(dictDir);
+ }
+ else {
+ // try to load gredir/dictionaries
+ nsCOMPtr<nsIFile> greDir;
+ rv = dirSvc->Get(NS_GRE_DIR,
+ NS_GET_IID(nsIFile), getter_AddRefs(greDir));
+ if (NS_SUCCEEDED(rv)) {
+ greDir->AppendNative(NS_LITERAL_CSTRING("dictionaries"));
+ LoadDictionariesFromDir(greDir);
+ }
+
+ // try to load appdir/dictionaries only if different than gredir
+ nsCOMPtr<nsIFile> appDir;
+ rv = dirSvc->Get(NS_XPCOM_CURRENT_PROCESS_DIR,
+ NS_GET_IID(nsIFile), getter_AddRefs(appDir));
+ bool equals;
+ if (NS_SUCCEEDED(rv) && NS_SUCCEEDED(appDir->Equals(greDir, &equals)) && !equals) {
+ appDir->AppendNative(NS_LITERAL_CSTRING("dictionaries"));
+ LoadDictionariesFromDir(appDir);
+ }
+ }
+
+ // find dictionaries in DICPATH
+ char* dicEnv = PR_GetEnv("DICPATH");
+ if (dicEnv) {
+ // do a two-pass dance so dictionaries are loaded right-to-left as preference
+ nsTArray<nsCOMPtr<nsIFile>> dirs;
+ nsAutoCString env(dicEnv); // assume dicEnv is UTF-8
+
+ char* currPath = nullptr;
+ char* nextPaths = env.BeginWriting();
+ while ((currPath = NS_strtok(":", &nextPaths))) {
+ nsCOMPtr<nsIFile> dir;
+ rv = NS_NewNativeLocalFile(nsCString(currPath), true, getter_AddRefs(dir));
+ if (NS_SUCCEEDED(rv)) {
+ dirs.AppendElement(dir);
+ }
+ }
+
+ // load them in reverse order so they override each other properly
+ for (int32_t i = dirs.Length() - 1; i >= 0; i--) {
+ LoadDictionariesFromDir(dirs[i]);
+ }
+ }
+
+ // find dictionaries from extensions requiring restart
+ nsCOMPtr<nsISimpleEnumerator> dictDirs;
+ rv = dirSvc->Get(DICTIONARY_SEARCH_DIRECTORY_LIST,
+ NS_GET_IID(nsISimpleEnumerator), getter_AddRefs(dictDirs));
+ if (NS_FAILED(rv))
+ return;
+
+ bool hasMore;
+ while (NS_SUCCEEDED(dictDirs->HasMoreElements(&hasMore)) && hasMore) {
+ nsCOMPtr<nsISupports> elem;
+ dictDirs->GetNext(getter_AddRefs(elem));
+
+ dictDir = do_QueryInterface(elem);
+ if (dictDir)
+ LoadDictionariesFromDir(dictDir);
+ }
+
+ // find dictionaries from restartless extensions
+ for (int32_t i = 0; i < mDynamicDirectories.Count(); i++) {
+ LoadDictionariesFromDir(mDynamicDirectories[i]);
+ }
+
+ // Now we have finished updating the list of dictionaries, update the current
+ // dictionary and any editors which may use it.
+ mozInlineSpellChecker::UpdateCanEnableInlineSpellChecking();
+
+ if (aNotifyChildProcesses) {
+ ContentParent::NotifyUpdatedDictionaries();
+ }
+
+ // Check if the current dictionary is still available.
+ // If not, try to replace it with another dictionary of the same language.
+ if (!mDictionary.IsEmpty()) {
+ rv = SetDictionary(mDictionary.get());
+ if (NS_SUCCEEDED(rv))
+ return;
+ }
+
+ // If the current dictionary has gone, and we don't have a good replacement,
+ // set no current dictionary.
+ if (!mDictionary.IsEmpty()) {
+ SetDictionary(EmptyString().get());
+ }
+}
+
+NS_IMETHODIMP
+mozHunspell::LoadDictionariesFromDir(nsIFile* aDir)
+{
+ nsresult rv;
+
+ bool check = false;
+ rv = aDir->Exists(&check);
+ if (NS_FAILED(rv) || !check)
+ return NS_ERROR_UNEXPECTED;
+
+ rv = aDir->IsDirectory(&check);
+ if (NS_FAILED(rv) || !check)
+ return NS_ERROR_UNEXPECTED;
+
+ nsCOMPtr<nsISimpleEnumerator> e;
+ rv = aDir->GetDirectoryEntries(getter_AddRefs(e));
+ if (NS_FAILED(rv))
+ return NS_ERROR_UNEXPECTED;
+
+ nsCOMPtr<nsIDirectoryEnumerator> files(do_QueryInterface(e));
+ if (!files)
+ return NS_ERROR_UNEXPECTED;
+
+ nsCOMPtr<nsIFile> file;
+ while (NS_SUCCEEDED(files->GetNextFile(getter_AddRefs(file))) && file) {
+ nsAutoString leafName;
+ file->GetLeafName(leafName);
+ if (!StringEndsWith(leafName, NS_LITERAL_STRING(".dic")))
+ continue;
+
+ nsAutoString dict(leafName);
+ dict.SetLength(dict.Length() - 4); // magic length of ".dic"
+
+ // check for the presence of the .aff file
+ leafName = dict;
+ leafName.AppendLiteral(".aff");
+ file->SetLeafName(leafName);
+ rv = file->Exists(&check);
+ if (NS_FAILED(rv) || !check)
+ continue;
+
+#ifdef DEBUG_bsmedberg
+ printf("Adding dictionary: %s\n", NS_ConvertUTF16toUTF8(dict).get());
+#endif
+
+ // Replace '_' separator with '-'
+ dict.ReplaceChar("_", '-');
+
+ mDictionaries.Put(dict, file);
+ }
+
+ return NS_OK;
+}
+
+nsresult mozHunspell::ConvertCharset(const char16_t* aStr, char ** aDst)
+{
+ NS_ENSURE_ARG_POINTER(aDst);
+ NS_ENSURE_TRUE(mEncoder, NS_ERROR_NULL_POINTER);
+
+ int32_t outLength;
+ int32_t inLength = NS_strlen(aStr);
+ nsresult rv = mEncoder->GetMaxLength(aStr, inLength, &outLength);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ *aDst = (char *) moz_xmalloc(sizeof(char) * (outLength+1));
+ NS_ENSURE_TRUE(*aDst, NS_ERROR_OUT_OF_MEMORY);
+
+ rv = mEncoder->Convert(aStr, &inLength, *aDst, &outLength);
+ if (NS_SUCCEEDED(rv))
+ (*aDst)[outLength] = '\0';
+
+ return rv;
+}
+
+NS_IMETHODIMP
+mozHunspell::CollectReports(nsIHandleReportCallback* aHandleReport,
+ nsISupports* aData, bool aAnonymize)
+{
+ MOZ_COLLECT_REPORT(
+ "explicit/spell-check", KIND_HEAP, UNITS_BYTES,
+ HunspellAllocator::MemoryAllocated(),
+ "Memory used by the spell-checking engine.");
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP mozHunspell::Check(const char16_t *aWord, bool *aResult)
+{
+ NS_ENSURE_ARG_POINTER(aWord);
+ NS_ENSURE_ARG_POINTER(aResult);
+ NS_ENSURE_TRUE(mHunspell, NS_ERROR_FAILURE);
+
+ nsXPIDLCString charsetWord;
+ nsresult rv = ConvertCharset(aWord, getter_Copies(charsetWord));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ *aResult = !!mHunspell->spell(charsetWord);
+
+
+ if (!*aResult && mPersonalDictionary)
+ rv = mPersonalDictionary->Check(aWord, mLanguage.get(), aResult);
+
+ return rv;
+}
+
+NS_IMETHODIMP mozHunspell::Suggest(const char16_t *aWord, char16_t ***aSuggestions, uint32_t *aSuggestionCount)
+{
+ 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;
+}