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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // DataPack represents a read-only view onto an on-disk file that contains | 5 // DataPack represents a read-only view onto an on-disk file that contains |
6 // (key, value) pairs of data. It's used to store static resources like | 6 // (key, value) pairs of data. It's used to store static resources like |
7 // translation strings and images. | 7 // translation strings and images. |
8 | 8 |
9 #ifndef UI_BASE_RESOURCE_DATA_PACK_H_ | 9 #ifndef UI_BASE_RESOURCE_DATA_PACK_H_ |
10 #define UI_BASE_RESOURCE_DATA_PACK_H_ | 10 #define UI_BASE_RESOURCE_DATA_PACK_H_ |
11 | 11 |
12 #include <map> | 12 #include <map> |
13 | 13 |
14 #include "base/basictypes.h" | 14 #include "base/basictypes.h" |
15 #include "base/memory/scoped_ptr.h" | 15 #include "base/memory/scoped_ptr.h" |
16 #include "base/platform_file.h" | 16 #include "base/platform_file.h" |
17 #include "base/string_piece.h" | 17 #include "base/string_piece.h" |
18 #include "ui/base/layout.h" | 18 #include "ui/base/layout.h" |
19 #include "ui/base/resource/resource_handle.h" | 19 #include "ui/base/resource/resource_handle.h" |
20 #include "ui/base/ui_export.h" | 20 #include "ui/base/ui_export.h" |
21 | 21 |
| 22 namespace base { |
22 class FilePath; | 23 class FilePath; |
23 | |
24 namespace base { | |
25 class RefCountedStaticMemory; | 24 class RefCountedStaticMemory; |
26 } | 25 } |
27 | 26 |
28 namespace file_util { | 27 namespace file_util { |
29 class MemoryMappedFile; | 28 class MemoryMappedFile; |
30 } | 29 } |
31 | 30 |
32 namespace ui { | 31 namespace ui { |
33 | 32 |
34 class UI_EXPORT DataPack : public ResourceHandle { | 33 class UI_EXPORT DataPack : public ResourceHandle { |
35 public: | 34 public: |
36 DataPack(ui::ScaleFactor scale_factor); | 35 DataPack(ui::ScaleFactor scale_factor); |
37 virtual ~DataPack(); | 36 virtual ~DataPack(); |
38 | 37 |
39 // Load a pack file from |path|, returning false on error. | 38 // Load a pack file from |path|, returning false on error. |
40 bool LoadFromPath(const FilePath& path); | 39 bool LoadFromPath(const base::FilePath& path); |
41 | 40 |
42 // Loads a pack file from |file|, returning false on error. | 41 // Loads a pack file from |file|, returning false on error. |
43 bool LoadFromFile(base::PlatformFile file); | 42 bool LoadFromFile(base::PlatformFile file); |
44 | 43 |
45 // Writes a pack file containing |resources| to |path|. If there are any | 44 // Writes a pack file containing |resources| to |path|. If there are any |
46 // text resources to be written, their encoding must already agree to the | 45 // text resources to be written, their encoding must already agree to the |
47 // |textEncodingType| specified. If no text resources are present, please | 46 // |textEncodingType| specified. If no text resources are present, please |
48 // indicate BINARY. | 47 // indicate BINARY. |
49 static bool WritePack(const FilePath& path, | 48 static bool WritePack(const base::FilePath& path, |
50 const std::map<uint16, base::StringPiece>& resources, | 49 const std::map<uint16, base::StringPiece>& resources, |
51 TextEncodingType textEncodingType); | 50 TextEncodingType textEncodingType); |
52 | 51 |
53 // ResourceHandle implementation: | 52 // ResourceHandle implementation: |
54 virtual bool HasResource(uint16 resource_id) const OVERRIDE; | 53 virtual bool HasResource(uint16 resource_id) const OVERRIDE; |
55 virtual bool GetStringPiece(uint16 resource_id, | 54 virtual bool GetStringPiece(uint16 resource_id, |
56 base::StringPiece* data) const OVERRIDE; | 55 base::StringPiece* data) const OVERRIDE; |
57 virtual base::RefCountedStaticMemory* GetStaticMemory( | 56 virtual base::RefCountedStaticMemory* GetStaticMemory( |
58 uint16 resource_id) const OVERRIDE; | 57 uint16 resource_id) const OVERRIDE; |
59 virtual TextEncodingType GetTextEncodingType() const OVERRIDE; | 58 virtual TextEncodingType GetTextEncodingType() const OVERRIDE; |
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75 // The scale of the image in this resource pack relative to images in the 1x | 74 // The scale of the image in this resource pack relative to images in the 1x |
76 // resource pak. | 75 // resource pak. |
77 ui::ScaleFactor scale_factor_; | 76 ui::ScaleFactor scale_factor_; |
78 | 77 |
79 DISALLOW_COPY_AND_ASSIGN(DataPack); | 78 DISALLOW_COPY_AND_ASSIGN(DataPack); |
80 }; | 79 }; |
81 | 80 |
82 } // namespace ui | 81 } // namespace ui |
83 | 82 |
84 #endif // UI_BASE_RESOURCE_DATA_PACK_H_ | 83 #endif // UI_BASE_RESOURCE_DATA_PACK_H_ |
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