chrome/browser/ui/webui/options/startup_pages_handler.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS_STARTUP_PAGES_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_STARTUP_PAGES_HANDLER_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "base/prefs/pref_change_registrar.h"
  12 #include "base/prefs/pref_member.h"
  13 #include "chrome/browser/autocomplete/autocomplete_controller_delegate.h"
  14 #include "chrome/browser/ui/webui/options/options_ui.h"
  15 #include "ui/base/models/table_model_observer.h"
  16
  17 class AutocompleteController;
  18 class CustomHomePagesTableModel;
  19 class TemplateURLService;
  20
  21 namespace options {
  22
  23 // Chrome browser options page UI handler.
  24 class StartupPagesHandler : public OptionsPageUIHandler,
  25                             public AutocompleteControllerDelegate,
  26                             public ui::TableModelObserver {
  27  public:
  28   StartupPagesHandler();
  29   virtual ~StartupPagesHandler();
  30
  31   // OptionsPageUIHandler implementation.
  32   virtual void GetLocalizedValues(
  33       base::DictionaryValue* localized_strings) OVERRIDE;
  34   virtual void InitializeHandler() OVERRIDE;
  35   virtual void InitializePage() OVERRIDE;
  36   virtual void RegisterMessages() OVERRIDE;
  37
  38   // AutocompleteControllerDelegate implementation.
  39   virtual void OnResultChanged(bool default_match_changed) OVERRIDE;
  40
  41   // ui::TableModelObserver implementation.
  42   virtual void OnModelChanged() OVERRIDE;
  43   virtual void OnItemsChanged(int start, int length) OVERRIDE;
  44   virtual void OnItemsAdded(int start, int length) OVERRIDE;
  45   virtual void OnItemsRemoved(int start, int length) OVERRIDE;
  46
  47  private:
  48   // Saves the changes that have been made. Called from WebUI.
  49   void CommitChanges(const base::ListValue* args);
  50
  51   // Cancels the changes that have been made. Called from WebUI.
  52   void CancelChanges(const base::ListValue* args);
  53
  54   // Removes the startup page at the given indexes. Called from WebUI.
  55   void RemoveStartupPages(const base::ListValue* args);
  56
  57   // Adds a startup page with the given URL after the given index.
  58   // Called from WebUI.
  59   void AddStartupPage(const base::ListValue* args);
  60
  61   // Changes the startup page at the given index to the given URL.
  62   // Called from WebUI.
  63   void EditStartupPage(const base::ListValue* args);
  64
  65   // Sets the startup page set to the current pages. Called from WebUI.
  66   void SetStartupPagesToCurrentPages(const base::ListValue* args);
  67
  68   // Writes the current set of startup pages to prefs. Called from WebUI.
  69   void DragDropStartupPage(const base::ListValue* args);
  70
  71   // Gets autocomplete suggestions asychronously for the given string.
  72   // Called from WebUI.
  73   void RequestAutocompleteSuggestions(const base::ListValue* args);
  74
  75   // Loads the current set of custom startup pages and reports it to the WebUI.
  76   void UpdateStartupPages();
  77
  78   // Writes the current set of startup pages to prefs.
  79   void SaveStartupPagesPref();
  80
  81   scoped_ptr<AutocompleteController> autocomplete_controller_;
  82
  83   // Used to observe updates to the preference of the list of URLs to load
  84   // on startup, which can be updated via sync.
  85   PrefChangeRegistrar pref_change_registrar_;
  86
  87   // TODO(stuartmorgan): Once there are no other clients of
  88   // CustomHomePagesTableModel, consider changing it to something more like
  89   // TemplateURLService.
  90   scoped_ptr<CustomHomePagesTableModel> startup_custom_pages_table_model_;
  91
  92   DISALLOW_COPY_AND_ASSIGN(StartupPagesHandler);
  93 };
  94
  95 }  // namespace options
  96
  97 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_STARTUP_PAGES_HANDLER_H_