Options2: Pull the trigger.

chrome/browser/ui/webui/options2/browser_options_handler.h

+// Copyright (c) 2011 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_UI_WEBUI_OPTIONS2_BROWSER_OPTIONS_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_BROWSER_OPTIONS_HANDLER_H_
+#pragma once
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/browser/autocomplete/autocomplete_controller_delegate.h"
+#include "chrome/browser/prefs/pref_change_registrar.h"
+#include "chrome/browser/prefs/pref_member.h"
+#include "chrome/browser/search_engines/template_url_service_observer.h"
+#include "chrome/browser/shell_integration.h"
+#include "chrome/browser/ui/webui/options2/options_ui2.h"
+#include "ui/base/models/table_model_observer.h"
+
+class AutocompleteController;
+class CustomHomePagesTableModel;
+class TemplateURLService;
+
+// Chrome browser options page UI handler.
+class BrowserOptionsHandler : public OptionsPage2UIHandler,
+                              public AutocompleteControllerDelegate,
+                              public ShellIntegration::DefaultWebClientObserver,
+                              public TemplateURLServiceObserver,
+                              public ui::TableModelObserver {
+ public:
+  BrowserOptionsHandler();
+  virtual ~BrowserOptionsHandler();
+
+  virtual void Initialize() OVERRIDE;
+
+  // OptionsPage2UIHandler implementation.
+  virtual void GetLocalizedValues(DictionaryValue* localized_strings) OVERRIDE;
+  virtual void RegisterMessages() OVERRIDE;
+
+  // AutocompleteControllerDelegate implementation.
+  virtual void OnResultChanged(bool default_match_changed) OVERRIDE;
+
+  // ShellIntegration::DefaultWebClientObserver implementation.
+  virtual void SetDefaultWebClientUIState(
+      ShellIntegration::DefaultWebClientUIState state) OVERRIDE;
+
+  // TemplateURLServiceObserver implementation.
+  virtual void OnTemplateURLServiceChanged() OVERRIDE;
+
+  // ui::TableModelObserver implementation.
+  virtual void OnModelChanged() OVERRIDE;
+  virtual void OnItemsChanged(int start, int length) OVERRIDE;
+  virtual void OnItemsAdded(int start, int length) OVERRIDE;
+  virtual void OnItemsRemoved(int start, int length) OVERRIDE;
+
+ private:
+  // content::NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  // Makes this the default browser. Called from WebUI.
+  void BecomeDefaultBrowser(const ListValue* args);
+
+  // Sets the search engine at the given index to be default. Called from WebUI.
+  void SetDefaultSearchEngine(const ListValue* args);
+
+  // Removes the startup page at the given indexes. Called from WebUI.
+  void RemoveStartupPages(const ListValue* args);
+
+  // Adds a startup page with the given URL after the given index.
+  // Called from WebUI.
+  void AddStartupPage(const ListValue* args);
+
+  // Changes the startup page at the given index to the given URL.
+  // Called from WebUI.
+  void EditStartupPage(const ListValue* args);
+
+  // Sets the startup page set to the current pages. Called from WebUI.
+  void SetStartupPagesToCurrentPages(const ListValue* args);
+
+  // Writes the current set of startup pages to prefs. Called from WebUI.
+  void DragDropStartupPage(const ListValue* args);
+
+  // Gets autocomplete suggestions asychronously for the given string.
+  // Called from WebUI.
+  void RequestAutocompleteSuggestions(const ListValue* args);
+
+  // Enables/disables Instant.
+  void EnableInstant(const ListValue* args);
+  void DisableInstant(const ListValue* args);
+
+  // Called to request information about the Instant field trial.
+  void GetInstantFieldTrialStatus(const ListValue* args);
+
+  // Returns the string ID for the given default browser state.
+  int StatusStringIdForState(ShellIntegration::DefaultWebClientState state);
+
+  // Gets the current default browser state, and asynchronously reports it to
+  // the WebUI page.
+  void UpdateDefaultBrowserState();
+
+  // Updates the UI with the given state for the default browser.
+  void SetDefaultBrowserUIString(int status_string_id);
+
+  // Loads the current set of custom startup pages and reports it to the WebUI.
+  void UpdateStartupPages();
+
+  // Loads the possible default search engine list and reports it to the WebUI.
+  void UpdateSearchEngines();
+
+  // Writes the current set of startup pages to prefs.
+  void SaveStartupPagesPref();
+
+  scoped_refptr<ShellIntegration::DefaultBrowserWorker>
+      default_browser_worker_;
+
+  StringPrefMember homepage_;
+  BooleanPrefMember default_browser_policy_;
+
+  // Used to observe updates to the preference of the list of URLs to load
+  // on startup, which can be updated via sync.
+  PrefChangeRegistrar pref_change_registrar_;
+
+  TemplateURLService* template_url_service_;  // Weak.
+
+  // TODO(stuartmorgan): Once there are no other clients of
+  // CustomHomePagesTableModel, consider changing it to something more like
+  // TemplateURLService.
+  scoped_ptr<CustomHomePagesTableModel> startup_custom_pages_table_model_;
+
+  scoped_ptr<AutocompleteController> autocomplete_controller_;
+
+  DISALLOW_COPY_AND_ASSIGN(BrowserOptionsHandler);
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_BROWSER_OPTIONS_HANDLER_H_