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1 /* | |
2 * Copyright 2009, The Android Open Source Project | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions | |
6 * are met: | |
7 * * Redistributions of source code must retain the above copyright | |
8 * notice, this list of conditions and the following disclaimer. | |
9 * * Redistributions in binary form must reproduce the above copyright | |
10 * notice, this list of conditions and the following disclaimer in the | |
11 * documentation and/or other materials provided with the distribution. | |
12 * | |
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY | |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
24 */ | |
25 | |
26 #include "config.h" | |
27 #include "bindings/modules/v8/V8Geolocation.h" | |
28 | |
29 #include "bindings/modules/v8/V8PositionCallback.h" | |
30 #include "bindings/modules/v8/V8PositionErrorCallback.h" | |
31 #include "bindings/v8/V8Binding.h" | |
32 #include "bindings/v8/V8Callback.h" | |
33 #include "modules/geolocation/Geolocation.h" | |
34 | |
35 using namespace WTF; | |
36 | |
37 namespace WebCore { | |
38 | |
39 static PositionOptions* createPositionOptions(v8::Local<v8::Value> value, v8::Is
olate* isolate, bool& succeeded, ExceptionState& exceptionState) | |
40 { | |
41 succeeded = true; | |
42 | |
43 // Create default options. | |
44 PositionOptions* options = PositionOptions::create(); | |
45 | |
46 // Argument is optional (hence undefined is allowed), and null is allowed. | |
47 if (isUndefinedOrNull(value)) { | |
48 // Use default options. | |
49 return options; | |
50 } | |
51 | |
52 // Given the above test, this will always yield an object. | |
53 v8::Local<v8::Object> object = value->ToObject(); | |
54 | |
55 // For all three properties, we apply the following ... | |
56 // - If the getter or the property's valueOf method throws an exception, we | |
57 // quit so as not to risk overwriting the exception. | |
58 // - If the value is absent or undefined, we don't override the default. | |
59 v8::Local<v8::Value> enableHighAccuracyValue = object->Get(v8AtomicString(is
olate, "enableHighAccuracy")); | |
60 if (enableHighAccuracyValue.IsEmpty()) { | |
61 succeeded = false; | |
62 return nullptr; | |
63 } | |
64 if (!enableHighAccuracyValue->IsUndefined()) { | |
65 v8::Local<v8::Boolean> enableHighAccuracyBoolean = enableHighAccuracyVal
ue->ToBoolean(); | |
66 if (enableHighAccuracyBoolean.IsEmpty()) { | |
67 succeeded = false; | |
68 return nullptr; | |
69 } | |
70 options->setEnableHighAccuracy(enableHighAccuracyBoolean->Value()); | |
71 } | |
72 | |
73 v8::Local<v8::Value> timeoutValue = object->Get(v8AtomicString(isolate, "tim
eout")); | |
74 if (timeoutValue.IsEmpty()) { | |
75 succeeded = false; | |
76 return nullptr; | |
77 } | |
78 if (!timeoutValue->IsUndefined()) { | |
79 v8::Local<v8::Number> timeoutNumber = timeoutValue->ToNumber(); | |
80 if (timeoutNumber.IsEmpty()) { | |
81 succeeded = false; | |
82 return nullptr; | |
83 } | |
84 if (timeoutNumber->Value() <= 0) | |
85 options->setTimeout(0); | |
86 else | |
87 options->setTimeout(toUInt32(timeoutValue, Clamp, exceptionState)); | |
88 } | |
89 | |
90 v8::Local<v8::Value> maximumAgeValue = object->Get(v8AtomicString(isolate, "
maximumAge")); | |
91 if (maximumAgeValue.IsEmpty()) { | |
92 succeeded = false; | |
93 return nullptr; | |
94 } | |
95 if (!maximumAgeValue->IsUndefined()) { | |
96 v8::Local<v8::Number> maximumAgeNumber = maximumAgeValue->ToNumber(); | |
97 if (maximumAgeNumber.IsEmpty()) { | |
98 succeeded = false; | |
99 return nullptr; | |
100 } | |
101 if (maximumAgeNumber->Value() <= 0) | |
102 options->setMaximumAge(0); | |
103 else | |
104 options->setMaximumAge(toUInt32(maximumAgeValue, Clamp, exceptionSta
te)); | |
105 } | |
106 | |
107 return options; | |
108 } | |
109 | |
110 void V8Geolocation::getCurrentPositionMethodCustom(const v8::FunctionCallbackInf
o<v8::Value>& info) | |
111 { | |
112 bool succeeded = false; | |
113 | |
114 ExceptionState exceptionState(ExceptionState::ExecutionContext, "getCurrentP
osition", "Geolocation", info.Holder(), info.GetIsolate()); | |
115 | |
116 OwnPtr<PositionCallback> positionCallback = createFunctionOnlyCallback<V8Pos
itionCallback>(info[0], 1, succeeded, info.GetIsolate(), exceptionState); | |
117 if (!succeeded) | |
118 return; | |
119 ASSERT(positionCallback); | |
120 | |
121 // Argument is optional (hence undefined is allowed), and null is allowed. | |
122 OwnPtr<PositionErrorCallback> positionErrorCallback = createFunctionOnlyCall
back<V8PositionErrorCallback>(info[1], 2, succeeded, info.GetIsolate(), exceptio
nState, CallbackAllowUndefined | CallbackAllowNull); | |
123 if (!succeeded) | |
124 return; | |
125 | |
126 PositionOptions* positionOptions = createPositionOptions(info[2], info.GetIs
olate(), succeeded, exceptionState); | |
127 if (!succeeded) | |
128 return; | |
129 ASSERT(positionOptions); | |
130 | |
131 Geolocation* geolocation = V8Geolocation::toNative(info.Holder()); | |
132 geolocation->getCurrentPosition(positionCallback.release(), positionErrorCal
lback.release(), positionOptions); | |
133 } | |
134 | |
135 void V8Geolocation::watchPositionMethodCustom(const v8::FunctionCallbackInfo<v8:
:Value>& info) | |
136 { | |
137 bool succeeded = false; | |
138 | |
139 ExceptionState exceptionState(ExceptionState::ExecutionContext, "watchCurren
tPosition", "Geolocation", info.Holder(), info.GetIsolate()); | |
140 | |
141 OwnPtr<PositionCallback> positionCallback = createFunctionOnlyCallback<V8Pos
itionCallback>(info[0], 1, succeeded, info.GetIsolate(), exceptionState); | |
142 if (!succeeded) | |
143 return; | |
144 ASSERT(positionCallback); | |
145 | |
146 // Argument is optional (hence undefined is allowed), and null is allowed. | |
147 OwnPtr<PositionErrorCallback> positionErrorCallback = createFunctionOnlyCall
back<V8PositionErrorCallback>(info[1], 2, succeeded, info.GetIsolate(), exceptio
nState, CallbackAllowUndefined | CallbackAllowNull); | |
148 if (!succeeded) | |
149 return; | |
150 | |
151 PositionOptions* positionOptions = createPositionOptions(info[2], info.GetIs
olate(), succeeded, exceptionState); | |
152 if (!succeeded) | |
153 return; | |
154 ASSERT(positionOptions); | |
155 | |
156 Geolocation* geolocation = V8Geolocation::toNative(info.Holder()); | |
157 int watchId = geolocation->watchPosition(positionCallback.release(), positio
nErrorCallback.release(), positionOptions); | |
158 v8SetReturnValue(info, watchId); | |
159 } | |
160 | |
161 } // namespace WebCore | |
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