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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 #include "content/renderer/media/media_stream_constraints_util.h" | |
6 | |
7 #include <sstream> | |
8 | |
9 #include "base/strings/string_number_conversions.h" | |
10 #include "base/strings/utf_string_conversions.h" | |
11 #include "third_party/WebKit/public/platform/WebMediaConstraints.h" | |
12 #include "third_party/WebKit/public/platform/WebString.h" | |
13 | |
14 namespace content { | |
15 | |
16 namespace { | |
17 | |
18 // Convert a string ("true", "false") to a boolean. | |
19 bool ConvertStringToBoolean(const std::string& string, bool* value) { | |
20 std::istringstream iss(string); | |
21 iss >> std::boolalpha >> *value; | |
22 return !iss.fail(); | |
23 } | |
24 | |
25 } // namespace | |
26 | |
27 bool GetConstraintValueAsBoolean(const blink::WebMediaConstraints& constraints, | |
28 const std::string& key, | |
29 bool* value) { | |
30 return GetMandatoryConstraintValueAsBoolean(constraints, key, value) || | |
31 GetOptionalConstraintValueAsBoolean(constraints, key, value); | |
32 } | |
33 | |
34 bool GetConstraintValueAsInteger(const blink::WebMediaConstraints& constraints, | |
tommi (sloooow) - chröme
2014/05/03 10:26:28
Thanks for changing these. It was still stuck in
no longer working on chromium
2014/05/05 12:55:57
NP.
| |
35 const std::string& key, | |
36 int* value) { | |
37 return GetMandatoryConstraintValueAsInteger(constraints, key, value) || | |
38 GetOptionalConstraintValueAsInteger(constraints, key, value); | |
39 } | |
40 | |
41 bool GetConstraintValueAsString(const blink::WebMediaConstraints& constraints, | |
42 const std::string& key, | |
43 std::string* value) { | |
44 blink::WebString value_str; | |
45 if (!constraints.getMandatoryConstraintValue(base::UTF8ToUTF16(key), | |
tommi (sloooow) - chröme
2014/05/03 10:26:28
nit: Do the base::UTF8ToUTF16 conversion only once
no longer working on chromium
2014/05/05 12:55:57
Done.
| |
46 value_str) && | |
47 !constraints.getOptionalConstraintValue(base::UTF8ToUTF16(key), | |
48 value_str)) { | |
49 return false; | |
50 } | |
51 | |
52 *value = value_str.utf8(); | |
53 return true; | |
54 } | |
55 | |
56 bool GetMandatoryConstraintValueAsBoolean( | |
57 const blink::WebMediaConstraints& constraints, | |
58 const std::string& key, | |
59 bool* value) { | |
60 blink::WebString value_str; | |
61 if (!constraints.getMandatoryConstraintValue(base::UTF8ToUTF16(key), | |
62 value_str)) { | |
63 return false; | |
64 } | |
65 | |
66 return ConvertStringToBoolean(value_str.utf8(), value); | |
67 } | |
68 | |
69 bool GetMandatoryConstraintValueAsInteger( | |
70 const blink::WebMediaConstraints& constraints, | |
71 const std::string& key, | |
72 int* value) { | |
73 blink::WebString value_str; | |
74 if (!constraints.getMandatoryConstraintValue(base::UTF8ToUTF16(key), | |
75 value_str)) { | |
76 return false; | |
77 } | |
78 | |
79 return base::StringToInt(value_str.utf8(), value); | |
80 } | |
81 | |
82 bool GetOptionalConstraintValueAsBoolean( | |
83 const blink::WebMediaConstraints& constraints, | |
84 const std::string& key, | |
85 bool* value) { | |
86 blink::WebString value_str; | |
87 if (!constraints.getOptionalConstraintValue(base::UTF8ToUTF16(key), | |
88 value_str)) { | |
89 return false; | |
90 } | |
91 | |
92 return ConvertStringToBoolean(value_str.utf8(), value); | |
93 } | |
94 | |
95 bool GetOptionalConstraintValueAsInteger( | |
96 const blink::WebMediaConstraints& constraints, | |
97 const std::string& key, | |
98 int* value) { | |
99 blink::WebString value_str; | |
100 if (!constraints.getOptionalConstraintValue(base::UTF8ToUTF16(key), | |
101 value_str)) { | |
102 return false; | |
103 } | |
104 | |
105 return base::StringToInt(value_str.utf8(), value); | |
106 } | |
107 | |
108 } // namespace content | |
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