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/ui/webui/options/options_ui.h"
  14 #include "components/omnibox/browser/autocomplete_controller_delegate.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   ~StartupPagesHandler() override;
  30
  31   // OptionsPageUIHandler implementation.
  32   void GetLocalizedValues(base::DictionaryValue* localized_strings) override;
  33   void InitializeHandler() override;
  34   void InitializePage() override;
  35   void RegisterMessages() override;
  36
  37   // AutocompleteControllerDelegate implementation.
  38   void OnResultChanged(bool default_match_changed) override;
  39
  40   // ui::TableModelObserver implementation.
  41   void OnModelChanged() override;
  42   void OnItemsChanged(int start, int length) override;
  43   void OnItemsAdded(int start, int length) override;
  44   void OnItemsRemoved(int start, int length) override;
  45
  46  private:
  47   // Saves the changes that have been made. Called from WebUI.
  48   void CommitChanges(const base::ListValue* args);
  49
  50   // Cancels the changes that have been made. Called from WebUI.
  51   void CancelChanges(const base::ListValue* args);
  52
  53   // Removes the startup page at the given indexes. Called from WebUI.
  54   void RemoveStartupPages(const base::ListValue* args);
  55
  56   // Adds a startup page with the given URL after the given index.
  57   // Called from WebUI.
  58   void AddStartupPage(const base::ListValue* args);
  59
  60   // Changes the startup page at the given index to the given URL.
  61   // Called from WebUI.
  62   void EditStartupPage(const base::ListValue* args);
  63
  64   // Sets the startup page set to the current pages. Called from WebUI.
  65   void SetStartupPagesToCurrentPages(const base::ListValue* args);
  66
  67   // Writes the current set of startup pages to prefs. Called from WebUI.
  68   void DragDropStartupPage(const base::ListValue* args);
  69
  70   // Gets autocomplete suggestions asychronously for the given string.
  71   // Called from WebUI.
  72   void RequestAutocompleteSuggestions(const base::ListValue* args);
  73
  74   // Loads the current set of custom startup pages and reports it to the WebUI.
  75   void UpdateStartupPages();
  76
  77   // Writes the current set of startup pages to prefs.
  78   void SaveStartupPagesPref();
  79
  80   scoped_ptr<AutocompleteController> autocomplete_controller_;
  81
  82   // Used to observe updates to the preference of the list of URLs to load
  83   // on startup, which can be updated via sync.
  84   PrefChangeRegistrar pref_change_registrar_;
  85
  86   // TODO(stuartmorgan): Once there are no other clients of
  87   // CustomHomePagesTableModel, consider changing it to something more like
  88   // TemplateURLService.
  89   scoped_ptr<CustomHomePagesTableModel> startup_custom_pages_table_model_;
  90
  91   DISALLOW_COPY_AND_ASSIGN(StartupPagesHandler);
  92 };
  93
  94 }  // namespace options
  95
  96 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_STARTUP_PAGES_HANDLER_H_