Basic code structures for rewritten options dialogs as DOM UI. Also includes the initial implementation of System page in ChromeOS options.

BUG=chromium-os:
TEST=none yet, work in progress

Review URL: http://codereview.chromium.org/2781005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@50117 0039d316-1c4b-4281-b951-d872f2087c98

5 files changed, 481 insertions, 3 deletions

diff --git a/chrome/browser/dom_ui/core_options_handler.cc b/chrome/browser/dom_ui/core_options_handler.cc
new file mode 100644
index 0000000..3aa1587
--- /dev/null
+++ b/chrome/browser/dom_ui/core_options_handler.cc
@@ -0,0 +1,213 @@
+// Copyright (c) 2010 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/dom_ui/core_options_handler.h"
+
+#include "app/l10n_util.h"
+#include "app/resource_bundle.h"
+#include "base/utf_string_conversions.h"
+#include "base/values.h"
+#include "chrome/common/notification_service.h"
+#include "chrome/common/notification_type.h"
+#include "chrome/browser/pref_service.h"
+#include "chrome/browser/profile.h"
+#include "grit/browser_resources.h"
+#include "grit/chromium_strings.h"
+#include "grit/generated_resources.h"
+#include "grit/locale_settings.h"
+#include "grit/theme_resources.h"
+
+CoreOptionsHandler::CoreOptionsHandler() {
+}
+
+void CoreOptionsHandler::GetLocalizedValues(
+    DictionaryValue* localized_strings) {
+  DCHECK(localized_strings);
+  // Main
+  localized_strings->SetString(L"title",
+      l10n_util::GetStringF(IDS_OPTIONS_DIALOG_TITLE,
+          l10n_util::GetString(IDS_PRODUCT_NAME)));
+
+#if defined(OS_CHROMEOS)
+  localized_strings->SetString(L"systemPage",
+      l10n_util::GetString(IDS_OPTIONS_SYSTEM_TAB_LABEL));
+  localized_strings->SetString(L"internetPage",
+      l10n_util::GetString(IDS_OPTIONS_INTERNET_TAB_LABEL));
+#endif
+
+  localized_strings->SetString(L"basicsPage",
+      l10n_util::GetString(IDS_OPTIONS_GENERAL_TAB_LABEL));
+  localized_strings->SetString(L"personalStuffPage",
+      l10n_util::GetString(IDS_OPTIONS_CONTENT_TAB_LABEL));
+  localized_strings->SetString(L"underHoodPage",
+      l10n_util::GetString(IDS_OPTIONS_ADVANCED_TAB_LABEL));
+}
+
+void CoreOptionsHandler::Observe(NotificationType type,
+                                 const NotificationSource& source,
+                                 const NotificationDetails& details) {
+  if (type == NotificationType::PREF_CHANGED)
+    NotifyPrefChanged(Details<std::wstring>(details).ptr());
+}
+
+void CoreOptionsHandler::RegisterMessages() {
+  dom_ui_->RegisterMessageCallback("fetchPrefs",
+      NewCallback(this, &CoreOptionsHandler::HandleFetchPrefs));
+  dom_ui_->RegisterMessageCallback("observePrefs",
+      NewCallback(this, &CoreOptionsHandler::HandleFetchPrefs));
+  dom_ui_->RegisterMessageCallback("setBooleanPref",
+      NewCallback(this, &CoreOptionsHandler::HandleSetBooleanPref));
+  dom_ui_->RegisterMessageCallback("setIntegerPref",
+      NewCallback(this, &CoreOptionsHandler::HandleSetIntegerPref));
+  dom_ui_->RegisterMessageCallback("setStringPref",
+      NewCallback(this, &CoreOptionsHandler::HandleSetStringPref));
+}
+
+
+void CoreOptionsHandler::HandleFetchPrefs(const Value* value) {
+  if (!value || !value->IsType(Value::TYPE_LIST))
+    return;
+
+  const ListValue* param_values = static_cast<const ListValue*>(value);
+
+  // First param is name of callback function, the second one is the value of
+  // context that is just passed through - so, there needs to be at least one
+  // more for the actual preference identifier.
+  const size_t kMinFetchPrefsParamCount = 3;
+  if (param_values->GetSize() < kMinFetchPrefsParamCount)
+    return;
+
+  size_t idx = param_values->GetSize();
+  LOG(INFO) << "param_values->GetSize() = " << idx;
+  // Get callback JS function name.
+  Value* callback;
+  if (!param_values->Get(0, &callback) || !callback->IsType(Value::TYPE_STRING))
+    return;
+
+  std::wstring callback_function;
+  if (!callback->GetAsString(&callback_function))
+    return;
+
+  // Get context param (just passthrough value)
+  Value* context;
+  if (!param_values->Get(1, &context) || !context)
+    return;
+
+  // Get the list of name for prefs to build the response dictionary.
+  DictionaryValue result_value;
+  Value* list_member;
+  DCHECK(dom_ui_);
+  PrefService* pref_service = dom_ui_->GetProfile()->GetPrefs();
+
+  for (size_t i = 2; i < param_values->GetSize(); i++) {
+    if (!param_values->Get(i, &list_member))
+      break;
+
+    if (!list_member->IsType(Value::TYPE_STRING))
+      continue;
+
+    std::wstring pref_name;
+    if (!list_member->GetAsString(&pref_name))
+      continue;
+
+    const PrefService::Preference* pref =
+        pref_service->FindPreference(pref_name.c_str());
+    result_value.Set(pref_name.c_str(),
+        pref ? pref->GetValue()->DeepCopy() : Value::CreateNullValue());
+  }
+  dom_ui_->CallJavascriptFunction(callback_function.c_str(), *context,
+                                  result_value);
+}
+
+void CoreOptionsHandler::HandleObservePefs(const Value* value) {
+  if (!value || !value->IsType(Value::TYPE_LIST))
+    return;
+
+  DCHECK(dom_ui_);
+  PrefService* pref_service = dom_ui_->GetProfile()->GetPrefs();
+  DictionaryValue result_value;
+  const ListValue* list_value = static_cast<const ListValue*>(value);
+  Value* list_member;
+  for (size_t i = 0; i < list_value->GetSize(); i++) {
+    if (!list_value->Get(i, &list_member))
+      break;
+
+    if (!list_member->IsType(Value::TYPE_STRING))
+      continue;
+
+    std::wstring pref_name;
+    if (!list_member->GetAsString(&pref_name))
+      continue;
+
+    pref_service->AddPrefObserver(pref_name.c_str(), this);
+  }
+}
+
+void CoreOptionsHandler::HandleSetBooleanPref(const Value* value) {
+  HandleSetPref(value, Value::TYPE_BOOLEAN);
+}
+
+void CoreOptionsHandler::HandleSetIntegerPref(const Value* value) {
+  HandleSetPref(value, Value::TYPE_INTEGER);
+}
+
+void CoreOptionsHandler::HandleSetStringPref(const Value* value) {
+  HandleSetPref(value, Value::TYPE_STRING);
+}
+
+void CoreOptionsHandler::HandleSetPref(const Value* value,
+                                       Value::ValueType type) {
+  if (!value || !value->IsType(Value::TYPE_LIST))
+    return;
+  const ListValue* param_values = static_cast<const ListValue*>(value);
+  size_t size = param_values->GetSize();
+  LOG(INFO) << "Array size = " << size;
+  if (param_values->GetSize() != 2)
+    return;
+
+  DCHECK(dom_ui_);
+  PrefService* pref_service = dom_ui_->GetProfile()->GetPrefs();
+
+  Value* name_element;
+  std::wstring pref_name;
+  if (!param_values->Get(0, &name_element) ||
+      !name_element->IsType(Value::TYPE_STRING) ||
+      !name_element->GetAsString(&pref_name))
+    return;
+
+  Value* value_element;
+  std::string value_string;
+  if (!param_values->Get(1, &value_element) ||
+      !value_element->IsType(Value::TYPE_STRING) ||
+      !value_element->GetAsString(&value_string))
+    return;
+
+  switch (type) {
+    case Value::TYPE_BOOLEAN:
+      pref_service->SetBoolean(pref_name.c_str(), value_string == "true");
+      break;
+    case Value::TYPE_INTEGER:
+      int int_value;
+      if (StringToInt(value_string, &int_value))
+        pref_service->SetInteger(pref_name.c_str(), int_value);
+      break;
+    case Value::TYPE_STRING:
+      pref_service->SetString(pref_name.c_str(), UTF8ToWide(value_string));
+      break;
+    default:
+      NOTREACHED();
+  }
+}
+
+void CoreOptionsHandler::NotifyPrefChanged(const std::wstring* pref_name) {
+  DCHECK(dom_ui_);
+  PrefService* pref_service = dom_ui_->GetProfile()->GetPrefs();
+  const PrefService::Preference* pref =
+      pref_service->FindPreference(pref_name->c_str());
+  if (pref) {
+    DictionaryValue result_value;
+    result_value.Set(pref_name->c_str(), pref->GetValue()->DeepCopy());
+    dom_ui_->CallJavascriptFunction(L"prefsChanged", result_value);
+  }
+}
diff --git a/chrome/browser/dom_ui/core_options_handler.h b/chrome/browser/dom_ui/core_options_handler.h
new file mode 100644
index 0000000..a71489f
--- /dev/null
+++ b/chrome/browser/dom_ui/core_options_handler.h
@@ -0,0 +1,53 @@
+// Copyright (c) 2010 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.
+
+#ifndef CHROME_BROWSER_DOM_UI_CORE_OPTIONS_HANDLER_H_
+#define CHROME_BROWSER_DOM_UI_CORE_OPTIONS_HANDLER_H_
+
+#include "base/values.h"
+#include "chrome/browser/dom_ui/options_ui.h"
+
+// Core options UI handler.
+// Handles resource and JS calls common to all options sub-pages.
+class CoreOptionsHandler : public OptionsPageUIHandler {
+ public:
+  CoreOptionsHandler();
+
+  // OptionsUIHandler implementation.
+  virtual void GetLocalizedValues(DictionaryValue* localized_strings);
+
+  // NotificationObserver implementation.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+  // DOMMessageHandler implementation.
+  virtual void RegisterMessages();
+
+ private:
+  // Callback for the "fetchPrefs" message. This message accepts the list of
+  // preference names passed as |value| parameter (ListValue). It passes results
+  // dictionary of preference values by calling prefsFetched() JS method on the
+  // page.
+  void HandleFetchPrefs(const Value* value);
+
+  // Callback for the "observePrefs" message. This message initiates
+  // notification observing for given array of preference names.
+  void HandleObservePefs(const Value* value);
+
+  // Callbacks for the "set<type>Pref" message. This message saves the new
+  // preference value. The input value is an array of strings representing
+  // name-value preference pair.
+  void HandleSetBooleanPref(const Value* value);
+  void HandleSetIntegerPref(const Value* value);
+  void HandleSetStringPref(const Value* value);
+
+  void HandleSetPref(const Value* value, Value::ValueType type);
+
+  void NotifyPrefChanged(const std::wstring* pref_name);
+
+  DISALLOW_COPY_AND_ASSIGN(CoreOptionsHandler);
+};
+
+#endif  // CHROME_BROWSER_DOM_UI_CORE_OPTIONS_HANDLER_H_
diff --git a/chrome/browser/dom_ui/dom_ui_factory.cc b/chrome/browser/dom_ui/dom_ui_factory.cc
index 0ef066a..4ddfac6 100644
--- a/chrome/browser/dom_ui/dom_ui_factory.cc
+++ b/chrome/browser/dom_ui/dom_ui_factory.cc
@@ -8,10 +8,8 @@
 #include "chrome/browser/dom_ui/bookmarks_ui.h"
 #include "chrome/browser/dom_ui/downloads_ui.h"
 #include "chrome/browser/dom_ui/devtools_ui.h"
-#include "chrome/browser/dom_ui/filebrowse_ui.h"
 #include "chrome/browser/dom_ui/history_ui.h"
 #include "chrome/browser/dom_ui/html_dialog_ui.h"
-#include "chrome/browser/dom_ui/mediaplayer_ui.h"
 #include "chrome/browser/dom_ui/net_internals_ui.h"
 #include "chrome/browser/dom_ui/new_tab_ui.h"
 #include "chrome/browser/dom_ui/plugins_ui.h"
@@ -24,6 +22,12 @@
 #include "chrome/common/url_constants.h"
 #include "googleurl/src/gurl.h"
 
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/dom_ui/filebrowse_ui.h"
+#include "chrome/browser/dom_ui/mediaplayer_ui.h"
+#include "chrome/browser/dom_ui/options_ui.h"
+#endif
+
 const DOMUITypeID DOMUIFactory::kNoDOMUI = NULL;
 
 // A function for creating a new DOMUI. The caller owns the return value, which
@@ -106,9 +110,10 @@ static DOMUIFactoryFunction GetDOMUIFactoryFunction(const GURL& url) {
 #if defined(OS_CHROMEOS)
   if (url.host() == chrome::kChromeUIFileBrowseHost)
     return &NewDOMUI<FileBrowseUI>;
-
   if (url.host() == chrome::kChromeUIMediaplayerHost)
     return &NewDOMUI<MediaplayerUI>;
+  if (url.host() == chrome::kChromeUIOptionsHost)
+    return &NewDOMUI<OptionsUI>;
 #endif
 
   return NULL;
diff --git a/chrome/browser/dom_ui/options_ui.cc b/chrome/browser/dom_ui/options_ui.cc
new file mode 100644
index 0000000..652a168
--- /dev/null
+++ b/chrome/browser/dom_ui/options_ui.cc
@@ -0,0 +1,124 @@
+// Copyright (c) 2010 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/dom_ui/options_ui.h"
+
+#include "app/l10n_util.h"
+#include "app/resource_bundle.h"
+#include "base/callback.h"
+#include "base/i18n/time_formatting.h"
+#include "base/message_loop.h"
+#include "base/singleton.h"
+#include "base/string_piece.h"
+#include "base/string_util.h"
+#include "base/thread.h"
+#include "base/time.h"
+#include "base/values.h"
+#include "chrome/browser/chrome_thread.h"
+#include "chrome/browser/dom_ui/core_options_handler.h"
+#include "chrome/browser/metrics/user_metrics.h"
+#include "chrome/browser/pref_service.h"
+#include "chrome/browser/profile.h"
+#include "chrome/browser/tab_contents/tab_contents.h"
+#include "chrome/browser/tab_contents/tab_contents_delegate.h"
+#include "chrome/common/jstemplate_builder.h"
+#include "chrome/common/notification_service.h"
+#include "chrome/common/notification_type.h"
+#include "chrome/common/time_format.h"
+#include "chrome/common/url_constants.h"
+#include "net/base/escape.h"
+
+#include "grit/browser_resources.h"
+#include "grit/chromium_strings.h"
+#include "grit/generated_resources.h"
+#include "grit/locale_settings.h"
+#include "grit/theme_resources.h"
+
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/chromeos/dom_ui/system_options_handler.h"
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// OptionsUIHTMLSource
+//
+////////////////////////////////////////////////////////////////////////////////
+
+OptionsUIHTMLSource::OptionsUIHTMLSource(DictionaryValue* localized_strings)
+    : DataSource(chrome::kChromeUIOptionsHost, MessageLoop::current()) {
+  DCHECK(localized_strings);
+  localized_strings_.reset(localized_strings);
+}
+
+void OptionsUIHTMLSource::StartDataRequest(const std::string& path,
+                                           bool is_off_the_record,
+                                           int request_id) {
+  SetFontAndTextDirection(localized_strings_.get());
+
+  static const base::StringPiece options_html(
+      ResourceBundle::GetSharedInstance().GetRawDataResource(
+          IDR_OPTIONS_HTML));
+  const std::string full_html = jstemplate_builder::GetI18nTemplateHtml(
+      options_html, localized_strings_.get());
+
+  scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes);
+  html_bytes->data.resize(full_html.size());
+  std::copy(full_html.begin(), full_html.end(), html_bytes->data.begin());
+
+  SendResponse(request_id, html_bytes);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// OptionsUIHandler
+//
+////////////////////////////////////////////////////////////////////////////////
+
+OptionsPageUIHandler::OptionsPageUIHandler() {
+}
+
+OptionsPageUIHandler::~OptionsPageUIHandler() {
+}
+
+void OptionsPageUIHandler::UserMetricsRecordAction(
+    const UserMetricsAction& action, PrefService* prefs) {
+  UserMetrics::RecordAction(action, dom_ui_->GetProfile());
+  if (prefs)
+    prefs->ScheduleSavePersistentPrefs();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// OptionsUIContents
+//
+////////////////////////////////////////////////////////////////////////////////
+
+OptionsUI::OptionsUI(TabContents* contents) : DOMUI(contents) {
+  DictionaryValue* localized_strings = new DictionaryValue();
+
+  // TODO(zelidrag): Add all other page handlers here as we implement them.
+  AddOptionsPageUIHandler(localized_strings, new CoreOptionsHandler());
+#if defined(OS_CHROMEOS)
+  AddOptionsPageUIHandler(localized_strings, new SystemOptionsHandler());
+#endif
+
+  // |localized_strings| ownership is taken over by this constructor.
+  OptionsUIHTMLSource* html_source =
+      new OptionsUIHTMLSource(localized_strings);
+
+  // Set up the chrome://options/ source.
+  ChromeThread::PostTask(
+      ChromeThread::IO, FROM_HERE,
+      NewRunnableMethod(
+          Singleton<ChromeURLDataManager>::get(),
+          &ChromeURLDataManager::AddDataSource,
+          make_scoped_refptr(html_source)));
+}
+
+void OptionsUI::AddOptionsPageUIHandler(DictionaryValue* localized_strings,
+                                        OptionsPageUIHandler* handler) {
+  DCHECK(handler);
+  handler->GetLocalizedValues(localized_strings);
+  AddMessageHandler(handler->Attach(this));
+}
diff --git a/chrome/browser/dom_ui/options_ui.h b/chrome/browser/dom_ui/options_ui.h
new file mode 100644
index 0000000..a79b3bb
--- /dev/null
+++ b/chrome/browser/dom_ui/options_ui.h
@@ -0,0 +1,83 @@
+// Copyright (c) 2010 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.
+
+#ifndef CHROME_BROWSER_DOM_UI_OPTIONS_UI_H_
+#define CHROME_BROWSER_DOM_UI_OPTIONS_UI_H_
+
+#include <string>
+#include <vector>
+
+#include "base/scoped_ptr.h"
+#include "chrome/browser/dom_ui/chrome_url_data_manager.h"
+#include "chrome/browser/dom_ui/dom_ui.h"
+#include "chrome/common/notification_registrar.h"
+#include "chrome/common/notification_type.h"
+
+class GURL;
+class PrefService;
+struct UserMetricsAction;
+
+class OptionsUIHTMLSource : public ChromeURLDataManager::DataSource {
+ public:
+  // The constructor takes over ownership of |localized_strings|.
+  explicit OptionsUIHTMLSource(DictionaryValue* localized_strings);
+  virtual ~OptionsUIHTMLSource() {}
+
+  // Called when the network layer has requested a resource underneath
+  // the path we registered.
+  virtual void StartDataRequest(const std::string& path,
+                                bool is_off_the_record,
+                                int request_id);
+  virtual std::string GetMimeType(const std::string&) const {
+    return "text/html";
+  }
+
+ private:
+   // Localized strings collection.
+  scoped_ptr<DictionaryValue> localized_strings_;
+
+  DISALLOW_COPY_AND_ASSIGN(OptionsUIHTMLSource);
+};
+
+// The base class handler of Javascript messages of options pages.
+class OptionsPageUIHandler : public DOMMessageHandler,
+                             public NotificationObserver {
+ public:
+  OptionsPageUIHandler();
+  virtual ~OptionsPageUIHandler();
+
+  // Collects localized strings for options page.
+  virtual void GetLocalizedValues(DictionaryValue* localized_strings) = 0;
+
+  // DOMMessageHandler implementation.
+  virtual void RegisterMessages() {}
+
+  // NotificationObserver implementation.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) {}
+
+  void UserMetricsRecordAction(const UserMetricsAction& action,
+                               PrefService* prefs);
+
+ protected:
+  NotificationRegistrar registrar_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(OptionsPageUIHandler);
+};
+
+class OptionsUI : public DOMUI {
+ public:
+  explicit OptionsUI(TabContents* contents);
+  virtual ~OptionsUI() {}
+
+ private:
+  void AddOptionsPageUIHandler(DictionaryValue* localized_strings,
+                               OptionsPageUIHandler* handler);
+
+  DISALLOW_COPY_AND_ASSIGN(OptionsUI);
+};
+
+#endif  // CHROME_BROWSER_DOM_UI_OPTIONS_UI_H_