Componentize TranslateUIDelegate

chrome/browser/translate/translate_ui_delegate.cc

Index: chrome/browser/translate/translate_ui_delegate.cc
diff --git a/chrome/browser/translate/translate_ui_delegate.cc b/chrome/browser/translate/translate_ui_delegate.cc
deleted file mode 100644
index bd1641bed916f3ad9ec256d45727c2fdaa1ef169..0000000000000000000000000000000000000000
--- a/chrome/browser/translate/translate_ui_delegate.cc
+++ /dev/null
@@ -1,259 +0,0 @@
-// Copyright 2013 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/translate/translate_ui_delegate.h"
-
-#include "base/i18n/string_compare.h"
-#include "base/metrics/histogram.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/translate/translate_tab_helper.h"
-#include "components/translate/core/browser/translate_download_manager.h"
-#include "components/translate/core/browser/translate_manager.h"
-#include "components/translate/core/browser/translate_prefs.h"
-#include "components/translate/core/common/translate_constants.h"
-#include "content/public/browser/browser_context.h"
-#include "content/public/browser/navigation_entry.h"
-#include "content/public/browser/web_contents.h"
-#include "third_party/icu/source/i18n/unicode/coll.h"
-#include "ui/base/l10n/l10n_util.h"
-
-namespace {
-
-const char kDeclineTranslate[] = "Translate.DeclineTranslate";
-const char kRevertTranslation[] = "Translate.RevertTranslation";
-const char kPerformTranslate[] = "Translate.Translate";
-const char kNeverTranslateLang[] = "Translate.NeverTranslateLang";
-const char kNeverTranslateSite[] = "Translate.NeverTranslateSite";
-const char kAlwaysTranslateLang[] = "Translate.AlwaysTranslateLang";
-const char kModifyOriginalLang[] = "Translate.ModifyOriginalLang";
-const char kModifyTargetLang[] = "Translate.ModifyTargetLang";
-const char kDeclineTranslateDismissUI[] = "Translate.DeclineTranslateDismissUI";
-const char kShowErrorUI[] = "Translate.ShowErrorUI";
-
-}  // namespace
-
-TranslateUIDelegate::TranslateUIDelegate(content::WebContents* web_contents,
-                                         const std::string& original_language,
-                                         const std::string& target_language)
-    : web_contents_(web_contents),
-      original_language_index_(NO_INDEX),
-      initial_original_language_index_(NO_INDEX),
-      target_language_index_(NO_INDEX) {
-  DCHECK(web_contents_);
-
-  std::vector<std::string> language_codes;
-  TranslateDownloadManager::GetSupportedLanguages(&language_codes);
-
-  // Preparing for the alphabetical order in the locale.
-  UErrorCode error = U_ZERO_ERROR;
-  std::string locale = g_browser_process->GetApplicationLocale();
-  icu::Locale loc(locale.c_str());
-  scoped_ptr<icu::Collator> collator(icu::Collator::createInstance(loc, error));
-  collator->setStrength(icu::Collator::PRIMARY);
-
-  languages_.reserve(language_codes.size());
-  for (std::vector<std::string>::const_iterator iter = language_codes.begin();
-       iter != language_codes.end(); ++iter) {
-    std::string language_code = *iter;
-
-    base::string16 language_name = l10n_util::GetDisplayNameForLocale(
-        language_code, g_browser_process->GetApplicationLocale(), true);
-    // Insert the language in languages_ in alphabetical order.
-    std::vector<LanguageNamePair>::iterator iter2;
-    for (iter2 = languages_.begin(); iter2 != languages_.end(); ++iter2) {
-      if (base::i18n::CompareString16WithCollator(collator.get(),
-          language_name, iter2->second) == UCOL_LESS) {
-        break;
-      }
-    }
-    languages_.insert(iter2, LanguageNamePair(language_code, language_name));
-  }
-  for (std::vector<LanguageNamePair>::const_iterator iter = languages_.begin();
-       iter != languages_.end(); ++iter) {
-    std::string language_code = iter->first;
-    if (language_code == original_language) {
-      original_language_index_ = iter - languages_.begin();
-      initial_original_language_index_ = original_language_index_;
-    }
-    if (language_code == target_language)
-      target_language_index_ = iter - languages_.begin();
-  }
-
-  Profile* profile =
-      Profile::FromBrowserContext(web_contents_->GetBrowserContext());
-  prefs_ = TranslateTabHelper::CreateTranslatePrefs(profile->GetPrefs());
-}
-
-TranslateUIDelegate::~TranslateUIDelegate() {
-}
-
-void TranslateUIDelegate::OnErrorShown(TranslateErrors::Type error_type) {
-  DCHECK_LE(TranslateErrors::NONE, error_type);
-  DCHECK_LT(error_type, TranslateErrors::TRANSLATE_ERROR_MAX);
-
-  if (error_type == TranslateErrors::NONE)
-    return;
-
-  UMA_HISTOGRAM_ENUMERATION(kShowErrorUI, error_type,
-                            TranslateErrors::TRANSLATE_ERROR_MAX);
-}
-
-size_t TranslateUIDelegate::GetNumberOfLanguages() const {
-  return languages_.size();
-}
-
-size_t TranslateUIDelegate::GetOriginalLanguageIndex() const {
-  return original_language_index_;
-}
-
-void TranslateUIDelegate::UpdateOriginalLanguageIndex(size_t language_index) {
-  if (original_language_index_ == language_index)
-    return;
-
-  UMA_HISTOGRAM_BOOLEAN(kModifyOriginalLang, true);
-  original_language_index_ = language_index;
-}
-
-size_t TranslateUIDelegate::GetTargetLanguageIndex() const {
-  return target_language_index_;
-}
-
-void TranslateUIDelegate::UpdateTargetLanguageIndex(size_t language_index) {
-  if (target_language_index_ == language_index)
-    return;
-
-  DCHECK_LT(language_index, GetNumberOfLanguages());
-  UMA_HISTOGRAM_BOOLEAN(kModifyTargetLang, true);
-  target_language_index_ = language_index;
-}
-
-
-std::string TranslateUIDelegate::GetLanguageCodeAt(size_t index) const {
-  DCHECK_LT(index, GetNumberOfLanguages());
-  return languages_[index].first;
-}
-
-base::string16 TranslateUIDelegate::GetLanguageNameAt(size_t index) const {
-  if (index == static_cast<size_t>(NO_INDEX))
-    return base::string16();
-  DCHECK_LT(index, GetNumberOfLanguages());
-  return languages_[index].second;
-}
-
-std::string TranslateUIDelegate::GetOriginalLanguageCode() const {
-  return (GetOriginalLanguageIndex() == static_cast<size_t>(NO_INDEX)) ?
-      translate::kUnknownLanguageCode :
-      GetLanguageCodeAt(GetOriginalLanguageIndex());
-}
-
-std::string TranslateUIDelegate::GetTargetLanguageCode() const {
-  return GetLanguageCodeAt(GetTargetLanguageIndex());
-}
-
-void TranslateUIDelegate::Translate() {
-  if (!web_contents()->GetBrowserContext()->IsOffTheRecord()) {
-    prefs_->ResetTranslationDeniedCount(GetOriginalLanguageCode());
-    prefs_->IncrementTranslationAcceptedCount(GetOriginalLanguageCode());
-  }
-  TranslateManager* manager =
-      TranslateTabHelper::GetManagerFromWebContents(web_contents());
-  DCHECK(manager);
-  manager->TranslatePage(
-      GetOriginalLanguageCode(), GetTargetLanguageCode(), false);
-
-  UMA_HISTOGRAM_BOOLEAN(kPerformTranslate, true);
-}
-
-void TranslateUIDelegate::RevertTranslation() {
-  TranslateManager* manager =
-      TranslateTabHelper::GetManagerFromWebContents(web_contents());
-  DCHECK(manager);
-  manager->RevertTranslation();
-
-  UMA_HISTOGRAM_BOOLEAN(kRevertTranslation, true);
-}
-
-void TranslateUIDelegate::TranslationDeclined(bool explicitly_closed) {
-  if (!web_contents()->GetBrowserContext()->IsOffTheRecord()) {
-    prefs_->ResetTranslationAcceptedCount(GetOriginalLanguageCode());
-    prefs_->IncrementTranslationDeniedCount(GetOriginalLanguageCode());
-  }
-
-  // Remember that the user declined the translation so as to prevent showing a
-  // translate infobar for that page again.  (TranslateManager initiates
-  // translations when getting a LANGUAGE_DETERMINED from the page, which
-  // happens when a load stops. That could happen multiple times, including
-  // after the user already declined the translation.)
-  TranslateTabHelper::FromWebContents(web_contents())->
-      GetLanguageState().set_translation_declined(true);
-
-  UMA_HISTOGRAM_BOOLEAN(kDeclineTranslate, true);
-
-  if (!explicitly_closed)
-    UMA_HISTOGRAM_BOOLEAN(kDeclineTranslateDismissUI, true);
-}
-
-bool TranslateUIDelegate::IsLanguageBlocked() {
-  return prefs_->IsBlockedLanguage(GetOriginalLanguageCode());
-}
-
-void TranslateUIDelegate::SetLanguageBlocked(bool value) {
-  if (value) {
-    prefs_->BlockLanguage(GetOriginalLanguageCode());
-    TranslateTabHelper* translate_tab_helper =
-        TranslateTabHelper::FromWebContents(web_contents());
-    DCHECK(translate_tab_helper);
-    translate_tab_helper->GetLanguageState().SetTranslateEnabled(false);
-  } else {
-    prefs_->UnblockLanguage(GetOriginalLanguageCode());
-  }
-
-  UMA_HISTOGRAM_BOOLEAN(kNeverTranslateLang, true);
-}
-
-bool TranslateUIDelegate::IsSiteBlacklisted() {
-  std::string host = GetPageHost();
-  return !host.empty() && prefs_->IsSiteBlacklisted(host);
-}
-
-void TranslateUIDelegate::SetSiteBlacklist(bool value) {
-  std::string host = GetPageHost();
-  if (host.empty())
-    return;
-
-  if (value) {
-    prefs_->BlacklistSite(host);
-    TranslateTabHelper* translate_tab_helper =
-        TranslateTabHelper::FromWebContents(web_contents());
-    DCHECK(translate_tab_helper);
-    translate_tab_helper->GetLanguageState().SetTranslateEnabled(false);
-  } else {
-    prefs_->RemoveSiteFromBlacklist(host);
-  }
-
-  UMA_HISTOGRAM_BOOLEAN(kNeverTranslateSite, true);
-}
-
-bool TranslateUIDelegate::ShouldAlwaysTranslate() {
-  return prefs_->IsLanguagePairWhitelisted(GetOriginalLanguageCode(),
-                                           GetTargetLanguageCode());
-}
-
-void TranslateUIDelegate::SetAlwaysTranslate(bool value) {
-  const std::string& original_lang = GetOriginalLanguageCode();
-  const std::string& target_lang = GetTargetLanguageCode();
-  if (value)
-    prefs_->WhitelistLanguagePair(original_lang, target_lang);
-  else
-    prefs_->RemoveLanguagePairFromWhitelist(original_lang, target_lang);
-
-  UMA_HISTOGRAM_BOOLEAN(kAlwaysTranslateLang, true);
-}
-
-std::string TranslateUIDelegate::GetPageHost() {
-  content::NavigationEntry* entry =
-      web_contents()->GetController().GetActiveEntry();
-  return entry ? entry->GetURL().HostNoBrackets() : std::string();
-}