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1 // Copyright (c) 2013 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_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_UTILS_H_ | |
6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_UTILS_H_ | |
7 | |
8 #include <cstddef> | |
9 #include <string> | |
10 | |
11 #include "base/callback.h" | |
12 #include "base/logging.h" | |
13 #include "base/strings/string16.h" | |
14 #include "base/values.h" | |
15 | |
16 namespace chromeos { | |
17 | |
18 typedef std::vector<std::string> StringList; | |
19 typedef std::vector<base::string16> String16List; | |
20 | |
21 template<typename T> | |
22 struct UnwrapConstRef { | |
23 typedef T Type; | |
24 }; | |
25 | |
26 template<typename T> | |
27 struct UnwrapConstRef<const T&> { | |
28 typedef T Type; | |
29 }; | |
30 | |
31 bool ParseValue(const base::Value* value, bool* out_value); | |
32 bool ParseValue(const base::Value* value, int* out_value); | |
33 bool ParseValue(const base::Value* value, double* out_value); | |
34 bool ParseValue(const base::Value* value, std::string* out_value); | |
35 bool ParseValue(const base::Value* value, base::string16* out_value); | |
36 bool ParseValue(const base::Value* value, | |
37 const base::DictionaryValue** out_value); | |
38 bool ParseValue(const base::Value* value, StringList* out_value); | |
39 bool ParseValue(const base::Value* value, String16List* out_value); | |
40 | |
41 template<typename T> | |
42 inline bool GetArg(const base::ListValue* args, size_t index, T* out_value) { | |
43 const base::Value* value; | |
44 if (!args->Get(index, &value)) | |
45 return false; | |
46 return ParseValue(value, out_value); | |
47 } | |
48 | |
49 base::FundamentalValue MakeValue(bool v); | |
50 base::FundamentalValue MakeValue(int v); | |
51 base::FundamentalValue MakeValue(double v); | |
52 base::StringValue MakeValue(const std::string& v); | |
53 base::StringValue MakeValue(const base::string16& v); | |
54 | |
55 template<typename T> | |
56 inline const T& MakeValue(const T& v) { | |
57 return v; | |
58 } | |
59 | |
60 void CallbackWrapper0(base::Callback<void()> callback, | |
61 const base::ListValue* args); | |
62 | |
63 template<typename A1> | |
64 void CallbackWrapper1(base::Callback<void(A1)> callback, | |
65 const base::ListValue* args) { | |
66 DCHECK(args); | |
67 DCHECK_EQ(1u, args->GetSize()); | |
68 typename UnwrapConstRef<A1>::Type arg1; | |
69 if (!GetArg(args, 0, &arg1)) { | |
70 NOTREACHED(); | |
71 return; | |
72 } | |
73 callback.Run(arg1); | |
74 } | |
75 | |
76 template<typename A1, typename A2> | |
77 void CallbackWrapper2(base::Callback<void(A1, A2)> callback, | |
78 const base::ListValue* args) { | |
79 DCHECK(args); | |
80 DCHECK_EQ(2u, args->GetSize()); | |
81 typename UnwrapConstRef<A1>::Type arg1; | |
82 typename UnwrapConstRef<A2>::Type arg2; | |
83 if (!GetArg(args, 0, &arg1) || !GetArg(args, 1, &arg2)) { | |
84 NOTREACHED(); | |
85 return; | |
86 } | |
87 callback.Run(arg1, arg2); | |
88 } | |
89 | |
90 template<typename A1, typename A2, typename A3> | |
91 void CallbackWrapper3(base::Callback<void(A1, A2, A3)> callback, | |
92 const base::ListValue* args) { | |
93 DCHECK(args); | |
94 DCHECK_EQ(3u, args->GetSize()); | |
95 typename UnwrapConstRef<A1>::Type arg1; | |
96 typename UnwrapConstRef<A2>::Type arg2; | |
97 typename UnwrapConstRef<A3>::Type arg3; | |
98 if (!GetArg(args, 0, &arg1) || | |
99 !GetArg(args, 1, &arg2) || | |
100 !GetArg(args, 2, &arg3)) { | |
101 NOTREACHED(); | |
102 return; | |
103 } | |
104 callback.Run(arg1, arg2, arg3); | |
105 } | |
106 | |
107 template<typename A1, typename A2, typename A3, typename A4> | |
108 void CallbackWrapper4(base::Callback<void(A1, A2, A3, A4)> callback, | |
109 const base::ListValue* args) { | |
110 DCHECK(args); | |
111 DCHECK_EQ(4u, args->GetSize()); | |
112 typename UnwrapConstRef<A1>::Type arg1; | |
113 typename UnwrapConstRef<A2>::Type arg2; | |
114 typename UnwrapConstRef<A3>::Type arg3; | |
115 typename UnwrapConstRef<A4>::Type arg4; | |
116 if (!GetArg(args, 0, &arg1) || | |
117 !GetArg(args, 1, &arg2) || | |
118 !GetArg(args, 2, &arg3) || | |
119 !GetArg(args, 3, &arg4)) { | |
120 NOTREACHED(); | |
121 return; | |
122 } | |
123 callback.Run(arg1, arg2, arg3, arg4); | |
124 } | |
125 | |
126 } // namespace chromeos | |
127 | |
128 #endif // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_UTILS_H_ | |
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