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1 /* | |
2 * Copyright (C) 2010 Apple Inc. All rights reserved. | |
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/V8DeviceMotionEvent.h" | |
28 | |
29 #include "bindings/v8/V8Binding.h" | |
30 #include "modules/device_orientation/DeviceMotionData.h" | |
31 #include <v8.h> | |
32 | |
33 namespace WebCore { | |
34 | |
35 namespace { | |
36 | |
37 PassRefPtrWillBeRawPtr<DeviceMotionData::Acceleration> readAccelerationArgument(
v8::Local<v8::Value> value, v8::Isolate* isolate) | |
38 { | |
39 if (isUndefinedOrNull(value)) | |
40 return nullptr; | |
41 | |
42 // Given the test above, this will always yield an object. | |
43 v8::Local<v8::Object> object = value->ToObject(); | |
44 | |
45 v8::Local<v8::Value> xValue = object->Get(v8AtomicString(isolate, "x")); | |
46 if (xValue.IsEmpty()) | |
47 return nullptr; | |
48 bool canProvideX = !isUndefinedOrNull(xValue); | |
49 double x = xValue->NumberValue(); | |
50 | |
51 v8::Local<v8::Value> yValue = object->Get(v8AtomicString(isolate, "y")); | |
52 if (yValue.IsEmpty()) | |
53 return nullptr; | |
54 bool canProvideY = !isUndefinedOrNull(yValue); | |
55 double y = yValue->NumberValue(); | |
56 | |
57 v8::Local<v8::Value> zValue = object->Get(v8AtomicString(isolate, "z")); | |
58 if (zValue.IsEmpty()) | |
59 return nullptr; | |
60 bool canProvideZ = !isUndefinedOrNull(zValue); | |
61 double z = zValue->NumberValue(); | |
62 | |
63 if (!canProvideX && !canProvideY && !canProvideZ) | |
64 return nullptr; | |
65 | |
66 return DeviceMotionData::Acceleration::create(canProvideX, x, canProvideY, y
, canProvideZ, z); | |
67 } | |
68 | |
69 PassRefPtrWillBeRawPtr<DeviceMotionData::RotationRate> readRotationRateArgument(
v8::Local<v8::Value> value, v8::Isolate* isolate) | |
70 { | |
71 if (isUndefinedOrNull(value)) | |
72 return nullptr; | |
73 | |
74 // Given the test above, this will always yield an object. | |
75 v8::Local<v8::Object> object = value->ToObject(); | |
76 | |
77 v8::Local<v8::Value> alphaValue = object->Get(v8AtomicString(isolate, "alpha
")); | |
78 if (alphaValue.IsEmpty()) | |
79 return nullptr; | |
80 bool canProvideAlpha = !isUndefinedOrNull(alphaValue); | |
81 double alpha = alphaValue->NumberValue(); | |
82 | |
83 v8::Local<v8::Value> betaValue = object->Get(v8AtomicString(isolate, "beta")
); | |
84 if (betaValue.IsEmpty()) | |
85 return nullptr; | |
86 bool canProvideBeta = !isUndefinedOrNull(betaValue); | |
87 double beta = betaValue->NumberValue(); | |
88 | |
89 v8::Local<v8::Value> gammaValue = object->Get(v8AtomicString(isolate, "gamma
")); | |
90 if (gammaValue.IsEmpty()) | |
91 return nullptr; | |
92 bool canProvideGamma = !isUndefinedOrNull(gammaValue); | |
93 double gamma = gammaValue->NumberValue(); | |
94 | |
95 if (!canProvideAlpha && !canProvideBeta && !canProvideGamma) | |
96 return nullptr; | |
97 | |
98 return DeviceMotionData::RotationRate::create(canProvideAlpha, alpha, canPro
videBeta, beta, canProvideGamma, gamma); | |
99 } | |
100 | |
101 } // namespace | |
102 | |
103 void V8DeviceMotionEvent::initDeviceMotionEventMethodCustom(const v8::FunctionCa
llbackInfo<v8::Value>& info) | |
104 { | |
105 DeviceMotionEvent* impl = V8DeviceMotionEvent::toNative(info.Holder()); | |
106 v8::Isolate* isolate = info.GetIsolate(); | |
107 TOSTRING_VOID(V8StringResource<>, type, info[0]); | |
108 bool bubbles = info[1]->BooleanValue(); | |
109 bool cancelable = info[2]->BooleanValue(); | |
110 RefPtrWillBeRawPtr<DeviceMotionData::Acceleration> acceleration = readAccele
rationArgument(info[3], isolate); | |
111 RefPtrWillBeRawPtr<DeviceMotionData::Acceleration> accelerationIncludingGrav
ity = readAccelerationArgument(info[4], isolate); | |
112 RefPtrWillBeRawPtr<DeviceMotionData::RotationRate> rotationRate = readRotati
onRateArgument(info[5], isolate); | |
113 bool intervalProvided = !isUndefinedOrNull(info[6]); | |
114 double interval = info[6]->NumberValue(); | |
115 RefPtrWillBeRawPtr<DeviceMotionData> deviceMotionData = DeviceMotionData::cr
eate(acceleration.release(), accelerationIncludingGravity.release(), rotationRat
e.release(), intervalProvided, interval); | |
116 impl->initDeviceMotionEvent(type, bubbles, cancelable, deviceMotionData.get(
)); | |
117 } | |
118 | |
119 } // namespace WebCore | |
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