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 #include "chrome/browser/chromeos/login/default_user_images.h"
6
7 #include "base/basictypes.h"
8 #include "base/logging.h"
9 #include "base/string_number_conversions.h"
10 #include "base/string_util.h"
11 #include "base/stringprintf.h"
12 #include "grit/theme_resources.h"
13
14 namespace chromeos {
15
16 namespace {
17
18 const char kDefaultPathPrefix[] = "default:";
19 const char kDefaultUrlPrefix[] = "chrome://theme/IDR_LOGIN_DEFAULT_USER_";
20 const char kFirstDefaultUrl[] = "chrome://theme/IDR_LOGIN_DEFAULT_USER";
21
22 const char* kOldDefaultImageNames[] = {
23 "default:gray",
24 "default:green",
25 "default:blue",
26 "default:yellow",
27 "default:red",
28 };
29
30 // Returns a string consisting of the prefix specified and the index of the
31 // image if its valid.
GetDefaultImageString(int index,const std::string & prefix)32 std::string GetDefaultImageString(int index, const std::string& prefix) {
33 if (index < 0 || index >= kDefaultImagesCount) {
34 NOTREACHED();
35 return std::string();
36 }
37 return StringPrintf("%s%d", prefix.c_str(), index);
38 }
39
40 // Returns true if the string specified consists of the prefix and one of
41 // the default images indices. Returns the index of the image in |image_id|
42 // variable.
IsDefaultImageString(const std::string & s,const std::string & prefix,int * image_id)43 bool IsDefaultImageString(const std::string& s,
44 const std::string& prefix,
45 int* image_id) {
46 DCHECK(image_id);
47 if (!StartsWithASCII(s, prefix, true))
48 return false;
49
50 int image_index = -1;
51 if (base::StringToInt(s.begin() + prefix.length(),
52 s.end(),
53 &image_index)) {
54 if (image_index < 0 || image_index >= kDefaultImagesCount)
55 return false;
56 *image_id = image_index;
57 return true;
58 }
59
60 return false;
61 }
62 } // namespace
63
GetDefaultImagePath(int index)64 std::string GetDefaultImagePath(int index) {
65 return GetDefaultImageString(index, kDefaultPathPrefix);
66 }
67
IsDefaultImagePath(const std::string & path,int * image_id)68 bool IsDefaultImagePath(const std::string& path, int* image_id) {
69 if (IsDefaultImageString(path, kDefaultPathPrefix, image_id))
70 return true;
71
72 // Check old default image names for back-compatibility.
73 for (size_t i = 0; i < arraysize(kOldDefaultImageNames); ++i) {
74 if (path == kOldDefaultImageNames[i]) {
75 *image_id = static_cast<int>(i);
76 return true;
77 }
78 }
79 return false;
80 }
81
GetDefaultImageUrl(int index)82 std::string GetDefaultImageUrl(int index) {
83 if (index == 0)
84 return kFirstDefaultUrl;
85 return GetDefaultImageString(index, kDefaultUrlPrefix);
86 }
87
IsDefaultImageUrl(const std::string url,int * image_id)88 bool IsDefaultImageUrl(const std::string url, int* image_id) {
89 if (url == kFirstDefaultUrl) {
90 *image_id = 0;
91 return true;
92 }
93 return IsDefaultImageString(url, kDefaultUrlPrefix, image_id);
94 }
95
96 // Resource IDs of default user images.
97 const int kDefaultImageResources[] = {
98 IDR_LOGIN_DEFAULT_USER,
99 IDR_LOGIN_DEFAULT_USER_1,
100 IDR_LOGIN_DEFAULT_USER_2,
101 IDR_LOGIN_DEFAULT_USER_3,
102 IDR_LOGIN_DEFAULT_USER_4,
103 IDR_LOGIN_DEFAULT_USER_5,
104 IDR_LOGIN_DEFAULT_USER_6,
105 IDR_LOGIN_DEFAULT_USER_7,
106 IDR_LOGIN_DEFAULT_USER_8,
107 IDR_LOGIN_DEFAULT_USER_9,
108 IDR_LOGIN_DEFAULT_USER_10,
109 IDR_LOGIN_DEFAULT_USER_11,
110 IDR_LOGIN_DEFAULT_USER_12,
111 IDR_LOGIN_DEFAULT_USER_13,
112 IDR_LOGIN_DEFAULT_USER_14,
113 IDR_LOGIN_DEFAULT_USER_15,
114 IDR_LOGIN_DEFAULT_USER_16,
115 IDR_LOGIN_DEFAULT_USER_17,
116 IDR_LOGIN_DEFAULT_USER_18,
117 };
118
119 const int kDefaultImagesCount = arraysize(kDefaultImageResources);
120
121 } // namespace chromeos
122
123