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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 "base/strings/string_number_conversions.h" | |
8 #include "base/strings/utf_string_conversions.h" | |
9 #include "third_party/WebKit/public/platform/WebMediaConstraints.h" | |
10 #include "third_party/WebKit/public/platform/WebString.h" | |
11 | |
12 namespace content { | |
13 | |
14 namespace { | |
15 | |
16 // Convert a string ("true", "false") to a boolean. | |
17 bool ConvertStringToBoolean(const std::string& string, bool* value) { | |
18 static const char kValueTrue[] = "true"; | |
19 static const char kValueFalse[] = "false"; | |
20 | |
21 *value = (string == kValueTrue); | |
22 return *value || (string == kValueFalse); | |
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, | |
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 base::string16 key_16 = base::UTF8ToUTF16(key); | |
46 if (!constraints.getMandatoryConstraintValue(key_16, value_str) && | |
47 !constraints.getOptionalConstraintValue(key_16, value_str)) { | |
48 return false; | |
49 } | |
50 | |
51 *value = value_str.utf8(); | |
52 return true; | |
53 } | |
54 | |
55 bool GetMandatoryConstraintValueAsBoolean( | |
56 const blink::WebMediaConstraints& constraints, | |
57 const std::string& key, | |
58 bool* value) { | |
59 blink::WebString value_str; | |
60 if (!constraints.getMandatoryConstraintValue(base::UTF8ToUTF16(key), | |
61 value_str)) { | |
62 return false; | |
63 } | |
64 | |
65 return ConvertStringToBoolean(value_str.utf8(), value); | |
66 } | |
67 | |
68 bool GetMandatoryConstraintValueAsInteger( | |
69 const blink::WebMediaConstraints& constraints, | |
70 const std::string& key, | |
71 int* value) { | |
72 blink::WebString value_str; | |
73 if (!constraints.getMandatoryConstraintValue(base::UTF8ToUTF16(key), | |
74 value_str)) { | |
75 return false; | |
76 } | |
77 | |
78 return base::StringToInt(value_str.utf8(), value); | |
perkj_chrome
2014/05/08 13:42:24
Humm - you are aware that there is a difference be
no longer working on chromium
2014/05/12 14:39:09
Added a GetMandatoryConstraintValueAsBoolean(key)
| |
79 } | |
80 | |
81 bool GetOptionalConstraintValueAsBoolean( | |
82 const blink::WebMediaConstraints& constraints, | |
83 const std::string& key, | |
84 bool* value) { | |
85 blink::WebString value_str; | |
86 if (!constraints.getOptionalConstraintValue(base::UTF8ToUTF16(key), | |
87 value_str)) { | |
88 return false; | |
89 } | |
90 | |
91 return ConvertStringToBoolean(value_str.utf8(), value); | |
92 } | |
93 | |
94 bool GetOptionalConstraintValueAsInteger( | |
95 const blink::WebMediaConstraints& constraints, | |
96 const std::string& key, | |
97 int* value) { | |
98 blink::WebString value_str; | |
99 if (!constraints.getOptionalConstraintValue(base::UTF8ToUTF16(key), | |
100 value_str)) { | |
101 return false; | |
102 } | |
103 | |
104 return base::StringToInt(value_str.utf8(), value); | |
105 } | |
106 | |
107 } // namespace content | |
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