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      1 // Copyright (c) 2011 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_FONT_SETTINGS_HANDLER_H_
      6 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_FONT_SETTINGS_HANDLER_H_
      7 #pragma once
      8 
      9 #include "chrome/browser/prefs/pref_member.h"
     10 #include "chrome/browser/ui/webui/options/font_settings_fonts_list_loader.h"
     11 #include "chrome/browser/ui/webui/options/options_ui.h"
     12 
     13 // Font settings overlay page UI handler.
     14 class FontSettingsHandler : public OptionsPageUIHandler,
     15                             public FontSettingsFontsListLoader::Observer {
     16  public:
     17   FontSettingsHandler();
     18   virtual ~FontSettingsHandler();
     19 
     20   // OptionsPageUIHandler implementation.
     21   virtual void GetLocalizedValues(DictionaryValue* localized_strings);
     22   virtual void Initialize();
     23 
     24   // WebUIMessageHandler implementation.
     25   virtual WebUIMessageHandler* Attach(WebUI* web_ui);
     26   virtual void RegisterMessages();
     27 
     28   // NotificationObserver implementation.
     29   virtual void Observe(NotificationType type,
     30                        const NotificationSource& source,
     31                        const NotificationDetails& details);
     32 
     33   // FontSettingsFontsListLoader::Observer implementation.
     34   virtual void FontsListHasLoaded();
     35 
     36  private:
     37   void HandleFetchFontsData(const ListValue* args);
     38 
     39   void SetUpStandardFontSample();
     40   void SetUpSerifFontSample();
     41   void SetUpSansSerifFontSample();
     42   void SetUpFixedFontSample();
     43   void SetUpMinimumFontSample();
     44 
     45   StringPrefMember standard_font_;
     46   StringPrefMember serif_font_;
     47   StringPrefMember sans_serif_font_;
     48   StringPrefMember fixed_font_;
     49   StringPrefMember font_encoding_;
     50   IntegerPrefMember default_font_size_;
     51   IntegerPrefMember default_fixed_font_size_;
     52   IntegerPrefMember minimum_font_size_;
     53 
     54   scoped_refptr<FontSettingsFontsListLoader> fonts_list_loader_;
     55 
     56   DISALLOW_COPY_AND_ASSIGN(FontSettingsHandler);
     57 };
     58 
     59 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_FONT_SETTINGS_HANDLER_H_
     60