[WIP][DO NOT LAND] Componentize spellcheck

chrome/browser/spellchecker/spellcheck_service.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/spellchecker/spellcheck_service.h"
 
 #include <set>
 
 #include "base/logging.h"
 #include "base/strings/string_split.h"
 #include "base/supports_user_data.h"
 #include "base/synchronization/waitable_event.h"
 #include "build/build_config.h"
-#include "chrome/browser/spellchecker/feedback_sender.h"
+#include "components/spellcheck/browser/feedback_sender.h"
 #include "chrome/browser/spellchecker/spellcheck_factory.h"
-#include "chrome/browser/spellchecker/spellcheck_host_metrics.h"
+#include "components/spellcheck/browser/spellcheck_host_metrics.h"
 #include "chrome/browser/spellchecker/spellcheck_hunspell_dictionary.h"
-#include "chrome/browser/spellchecker/spellcheck_platform.h"
-#include "chrome/browser/spellchecker/spelling_service_client.h"
+#include "components/spellcheck/browser/spellcheck_platform.h"
+#include "components/spellcheck/browser/spelling_service_client.h"
 #include "chrome/common/pref_names.h"
-#include "chrome/common/spellcheck_bdict_language.h"
-#include "chrome/common/spellcheck_common.h"
-#include "chrome/common/spellcheck_messages.h"
+#include "components/spellcheck/browser/pref_names.h"
+#include "components/spellcheck/common/spellcheck_bdict_language.h"
+#include "components/spellcheck/common/spellcheck_common.h"
+#include "components/spellcheck/common/spellcheck_messages.h"
 #include "components/prefs/pref_member.h"
 #include "components/prefs/pref_service.h"
 #include "components/user_prefs/user_prefs.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/storage_partition.h"
 #include "ipc/ipc_platform_file.h"
 
 using content::BrowserThread;
 
 // TODO(rlp): I do not like globals, but keeping these for now during
 // transition.
 // An event used by browser tests to receive status events from this class and
 // its derived classes.
 base::WaitableEvent* g_status_event = NULL;
 SpellcheckService::EventType g_status_type =
     SpellcheckService::BDICT_NOTINITIALIZED;
 
 SpellcheckService::SpellcheckService(content::BrowserContext* context)
     : context_(context),
       weak_ptr_factory_(this) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   PrefService* prefs = user_prefs::UserPrefs::Get(context);
   pref_change_registrar_.Init(prefs);
   StringListPrefMember dictionaries_pref;
-  dictionaries_pref.Init(prefs::kSpellCheckDictionaries, prefs);
+  dictionaries_pref.Init(spellcheck::prefs::kSpellCheckDictionaries, prefs);
   std::string first_of_dictionaries;
 
 #if defined(USE_BROWSER_SPELLCHECKER)
   // Ensure that the renderer always knows the platform spellchecking language.
   // This language is used for initialization of the text iterator. If the
   // iterator is not initialized, then the context menu does not show spellcheck
   // suggestions.
   //
   // No migration is necessary, because the spellcheck language preference is
   // not user visible or modifiable in Chrome on Mac.
   dictionaries_pref.SetValue(std::vector<std::string>(
       1, spellcheck_platform::GetSpellCheckerLanguage()));
   first_of_dictionaries = dictionaries_pref.GetValue().front();
 #else
   // Migrate preferences from single-language to multi-language schema.
   StringPrefMember single_dictionary_pref;
-  single_dictionary_pref.Init(prefs::kSpellCheckDictionary, prefs);
+  single_dictionary_pref.Init(spellcheck::prefs::kSpellCheckDictionary, prefs);
   std::string single_dictionary = single_dictionary_pref.GetValue();
 
   if (!dictionaries_pref.GetValue().empty())
     first_of_dictionaries = dictionaries_pref.GetValue().front();
 
   if (first_of_dictionaries.empty() && !single_dictionary.empty()) {
     first_of_dictionaries = single_dictionary;
     dictionaries_pref.SetValue(
         std::vector<std::string>(1, first_of_dictionaries));
   }
 
   single_dictionary_pref.SetValue("");
 #endif  // defined(USE_BROWSER_SPELLCHECKER)
 
   std::string language_code;
   std::string country_code;
-  chrome::spellcheck_common::GetISOLanguageCountryCodeFromLocale(
+  spellcheck_common::GetISOLanguageCountryCodeFromLocale(
       first_of_dictionaries,
       &language_code,
       &country_code);
   feedback_sender_.reset(new spellcheck::FeedbackSender(
       content::BrowserContext::GetDefaultStoragePartition(context)->
             GetURLRequestContext(),
       language_code, country_code));
 
   pref_change_registrar_.Add(
-      prefs::kSpellCheckDictionaries,
+      spellcheck::prefs::kSpellCheckDictionaries,
       base::Bind(&SpellcheckService::OnSpellCheckDictionariesChanged,
                  base::Unretained(this)));
   pref_change_registrar_.Add(
-      prefs::kSpellCheckUseSpellingService,
+      spellcheck::prefs::kSpellCheckUseSpellingService,
       base::Bind(&SpellcheckService::OnUseSpellingServiceChanged,
                  base::Unretained(this)));
   pref_change_registrar_.Add(
       prefs::kAcceptLanguages,
       base::Bind(&SpellcheckService::OnAcceptLanguagesChanged,
                  base::Unretained(this)));
   pref_change_registrar_.Add(
-      prefs::kEnableContinuousSpellcheck,
+      spellcheck::prefs::kEnableContinuousSpellcheck,
       base::Bind(&SpellcheckService::InitForAllRenderers,
                  base::Unretained(this)));
 
   custom_dictionary_.reset(new SpellcheckCustomDictionary(context_->GetPath()));
   custom_dictionary_->AddObserver(this);
   custom_dictionary_->Load();
 
   registrar_.Add(this,
                  content::NOTIFICATION_RENDERER_PROCESS_CREATED,
                  content::NotificationService::AllSources());
@@ skipping 10 matching lines @@
 base::WeakPtr<SpellcheckService> SpellcheckService::GetWeakPtr() {
   return weak_ptr_factory_.GetWeakPtr();
 }
 
 #if !defined(OS_MACOSX)
 // static
 void SpellcheckService::GetDictionaries(base::SupportsUserData* browser_context,
                                         std::vector<Dictionary>* dictionaries) {
   PrefService* prefs = user_prefs::UserPrefs::Get(browser_context);
   std::set<std::string> spellcheck_dictionaries;
-  for (const auto& value : *prefs->GetList(prefs::kSpellCheckDictionaries)) {
+  for (const auto& value : *prefs->GetList(spellcheck::prefs::kSpellCheckDictionaries)) {
     std::string dictionary;
     if (value->GetAsString(&dictionary))
       spellcheck_dictionaries.insert(dictionary);
   }
 
   dictionaries->clear();
   std::vector<std::string> accept_languages =
       base::SplitString(prefs->GetString(prefs::kAcceptLanguages), ",",
                         base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
   for (const auto& accept_language : accept_languages) {
     Dictionary dictionary;
     dictionary.language =
-        chrome::spellcheck_common::GetCorrespondingSpellCheckLanguage(
+        spellcheck_common::GetCorrespondingSpellCheckLanguage(
             accept_language);
     if (dictionary.language.empty())
       continue;
 
     dictionary.used_for_spellcheck =
         spellcheck_dictionaries.count(dictionary.language) > 0;
     dictionaries->push_back(dictionary);
   }
 }
 #endif  // !OS_MACOSX
@@ skipping 30 matching lines @@
     bdict_languages.push_back(SpellCheckBDictLanguage());
     bdict_languages.back().language = hunspell_dictionary->GetLanguage();
     bdict_languages.back().file =
         hunspell_dictionary->GetDictionaryFile().IsValid()
             ? IPC::GetPlatformFileForTransit(
                   hunspell_dictionary->GetDictionaryFile().GetPlatformFile(),
                   false)
             : IPC::InvalidPlatformFileForTransit();
   }
 
-  bool enabled = prefs->GetBoolean(prefs::kEnableContinuousSpellcheck) &&
+  bool enabled = prefs->GetBoolean(spellcheck::prefs::kEnableContinuousSpellcheck) &&
                  !bdict_languages.empty();
   process->Send(new SpellCheckMsg_Init(
       bdict_languages,
       enabled ? custom_dictionary_->GetWords() : std::set<std::string>()));
   process->Send(new SpellCheckMsg_EnableSpellCheck(enabled));
 }
 
 SpellCheckHostMetrics* SpellcheckService::GetMetrics() const {
   return metrics_.get();
 }
 
 SpellcheckCustomDictionary* SpellcheckService::GetCustomDictionary() {
   return custom_dictionary_.get();
 }
 
 void SpellcheckService::LoadHunspellDictionaries() {
   hunspell_dictionaries_.clear();
 
   PrefService* prefs = user_prefs::UserPrefs::Get(context_);
   DCHECK(prefs);
 
   const base::ListValue* dictionary_values =
-      prefs->GetList(prefs::kSpellCheckDictionaries);
+      prefs->GetList(spellcheck::prefs::kSpellCheckDictionaries);
 
   for (const auto& dictionary_value : *dictionary_values) {
     std::string dictionary;
     dictionary_value->GetAsString(&dictionary);
     hunspell_dictionaries_.push_back(new SpellcheckHunspellDictionary(
         dictionary,
         content::BrowserContext::GetDefaultStoragePartition(context_)->
             GetURLRequestContext(),
         this));
     hunspell_dictionaries_.back()->AddObserver(this);
@@ skipping 92 matching lines @@
   UpdateFeedbackSenderState();
 
   // If there are no hunspell dictionaries to load, then immediately let the
   // renderers know the new state.
   if (hunspell_dictionaries_.empty())
     InitForAllRenderers();
 }
 
 void SpellcheckService::OnUseSpellingServiceChanged() {
   bool enabled = pref_change_registrar_.prefs()->GetBoolean(
-      prefs::kSpellCheckUseSpellingService);
+      spellcheck::prefs::kSpellCheckUseSpellingService);
   if (metrics_)
     metrics_->RecordSpellingServiceStats(enabled);
   UpdateFeedbackSenderState();
 }
 
 void SpellcheckService::OnAcceptLanguagesChanged() {
   PrefService* prefs = user_prefs::UserPrefs::Get(context_);
   std::vector<std::string> accept_languages =
       base::SplitString(prefs->GetString(prefs::kAcceptLanguages), ",",
                         base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
   std::transform(
       accept_languages.begin(), accept_languages.end(),
       accept_languages.begin(),
-      &chrome::spellcheck_common::GetCorrespondingSpellCheckLanguage);
+      &spellcheck_common::GetCorrespondingSpellCheckLanguage);
 
   StringListPrefMember dictionaries_pref;
-  dictionaries_pref.Init(prefs::kSpellCheckDictionaries, prefs);
+  dictionaries_pref.Init(spellcheck::prefs::kSpellCheckDictionaries, prefs);
   std::vector<std::string> dictionaries = dictionaries_pref.GetValue();
   std::vector<std::string> filtered_dictionaries;
 
   for (const auto& dictionary : dictionaries) {
     if (std::find(accept_languages.begin(), accept_languages.end(),
                   dictionary) != accept_languages.end()) {
       filtered_dictionaries.push_back(dictionary);
     }
   }
 
   dictionaries_pref.SetValue(filtered_dictionaries);
 }
 
 void SpellcheckService::UpdateFeedbackSenderState() {
   std::string feedback_language;
   if (!hunspell_dictionaries_.empty())
     feedback_language = hunspell_dictionaries_.front()->GetLanguage();
   std::string language_code;
   std::string country_code;
-  chrome::spellcheck_common::GetISOLanguageCountryCodeFromLocale(
+  spellcheck_common::GetISOLanguageCountryCodeFromLocale(
       feedback_language, &language_code, &country_code);
   feedback_sender_->OnLanguageCountryChange(language_code, country_code);
   if (SpellingServiceClient::IsAvailable(
           context_, SpellingServiceClient::SPELLCHECK)) {
     feedback_sender_->StartFeedbackCollection();
   } else {
     feedback_sender_->StopFeedbackCollection();
   }
 }