chromecast/common/cast_resource_delegate.h

   1 // Copyright 2014 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 CHROMECAST_COMMON_CAST_RESOURCE_DELEGATE_H_
   6 #define CHROMECAST_COMMON_CAST_RESOURCE_DELEGATE_H_
   7
   8 #include <string>
   9
  10 #include "base/macros.h"
  11 #include "base/memory/ref_counted_memory.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "ui/base/resource/resource_bundle.h"
  14
  15 namespace base {
  16 class FilePath;
  17 }
  18
  19 namespace gfx {
  20 class Image;
  21 }
  22
  23 namespace chromecast {
  24
  25 // A singleton resource bundle delegate. Primary purpose is to indicate the
  26 // correct locale pack file to load.
  27 class CastResourceDelegate : public ui::ResourceBundle::Delegate {
  28  public:
  29   // Returns the singleton of delegate. It doesn't create an instance.
  30   static CastResourceDelegate* GetInstance();
  31
  32   CastResourceDelegate();
  33   ~CastResourceDelegate() override;
  34
  35   // ui:ResourceBundle::Delegate implementation:
  36   base::FilePath GetPathForResourcePack(
  37       const base::FilePath& pack_path,
  38       ui::ScaleFactor scale_factor) override;
  39   base::FilePath GetPathForLocalePack(
  40       const base::FilePath& pack_path,
  41       const std::string& locale) override;
  42   gfx::Image GetImageNamed(int resource_id) override;
  43   gfx::Image GetNativeImageNamed(
  44       int resource_id,
  45       ui::ResourceBundle::ImageRTL rtl) override;
  46   base::RefCountedStaticMemory* LoadDataResourceBytes(
  47       int resource_id,
  48       ui::ScaleFactor scale_factor) override;
  49   bool GetRawDataResource(int resource_id,
  50                           ui::ScaleFactor scale_factor,
  51                           base::StringPiece* value) override;
  52   bool GetLocalizedString(int message_id, base::string16* value) override;
  53   scoped_ptr<gfx::Font> GetFont(ui::ResourceBundle::FontStyle style) override;
  54
  55   // Adds/removes/clears extra localized strings.
  56   void AddExtraLocalizedString(int resource_id,
  57                                const base::string16& localized);
  58   void RemoveExtraLocalizedString(int resource_id);
  59   void ClearAllExtraLocalizedStrings();
  60
  61  private:
  62   typedef base::hash_map<int, base::string16> ExtraLocaledStringMap;
  63
  64   ExtraLocaledStringMap extra_localized_strings_;
  65
  66   DISALLOW_COPY_AND_ASSIGN(CastResourceDelegate);
  67 };
  68
  69 }  // namespace chromecast
  70
  71 #endif  // CHROMECAST_COMMON_CAST_RESOURCE_DELEGATE_H_