Move WebCore into Source
[WebKit-https.git] / Source / WebCore / bindings / v8 / custom / V8DeviceMotionEventCustom.cpp
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
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23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25
26 #include "config.h"
27 #include "V8DeviceMotionEvent.h"
28
29 #if ENABLE(DEVICE_ORIENTATION)
30
31 #include "DeviceMotionData.h"
32 #include "V8Binding.h"
33 #include "V8BindingMacros.h"
34 #include "V8Proxy.h"
35
36 #include <v8.h>
37
38 namespace WebCore {
39
40 namespace {
41
42 v8::Handle<v8::Value> createAccelerationObject(const DeviceMotionData::Acceleration* acceleration)
43 {
44     v8::Local<v8::Object> object = v8::Object::New();
45     object->Set(v8::String::New("x"), acceleration->canProvideX() ? v8::Number::New(acceleration->x()) : v8::Null());
46     object->Set(v8::String::New("y"), acceleration->canProvideY() ? v8::Number::New(acceleration->y()) : v8::Null());
47     object->Set(v8::String::New("z"), acceleration->canProvideZ() ? v8::Number::New(acceleration->z()) : v8::Null());
48     return object;
49 }
50
51 v8::Handle<v8::Value> createRotationRateObject(const DeviceMotionData::RotationRate* rotationRate)
52 {
53     v8::Local<v8::Object> object = v8::Object::New();
54     object->Set(v8::String::New("alpha"), rotationRate->canProvideAlpha() ? v8::Number::New(rotationRate->alpha()) : v8::Null());
55     object->Set(v8::String::New("beta"),  rotationRate->canProvideBeta()  ? v8::Number::New(rotationRate->beta())  : v8::Null());
56     object->Set(v8::String::New("gamma"), rotationRate->canProvideGamma() ? v8::Number::New(rotationRate->gamma()) : v8::Null());
57     return object;
58 }
59
60 RefPtr<DeviceMotionData::Acceleration> readAccelerationArgument(v8::Local<v8::Value> value)
61 {
62     if (isUndefinedOrNull(value))
63         return 0;
64
65     // Given the test above, this will always yield an object.
66     v8::Local<v8::Object> object = value->ToObject();
67
68     v8::Local<v8::Value> xValue = object->Get(v8::String::New("x"));
69     if (xValue.IsEmpty())
70         return 0;
71     bool canProvideX = !isUndefinedOrNull(xValue);
72     double x = xValue->NumberValue();
73
74     v8::Local<v8::Value> yValue = object->Get(v8::String::New("y"));
75     if (yValue.IsEmpty())
76         return 0;
77     bool canProvideY = !isUndefinedOrNull(yValue);
78     double y = yValue->NumberValue();
79
80     v8::Local<v8::Value> zValue = object->Get(v8::String::New("z"));
81     if (zValue.IsEmpty())
82         return 0;
83     bool canProvideZ = !isUndefinedOrNull(zValue);
84     double z = zValue->NumberValue();
85
86     if (!canProvideX && !canProvideY && !canProvideZ)
87         return 0;
88
89     return DeviceMotionData::Acceleration::create(canProvideX, x, canProvideY, y, canProvideZ, z);
90 }
91
92 RefPtr<DeviceMotionData::RotationRate> readRotationRateArgument(v8::Local<v8::Value> value)
93 {
94     if (isUndefinedOrNull(value))
95         return 0;
96
97     // Given the test above, this will always yield an object.
98     v8::Local<v8::Object> object = value->ToObject();
99
100     v8::Local<v8::Value> alphaValue = object->Get(v8::String::New("alpha"));
101     if (alphaValue.IsEmpty())
102         return 0;
103     bool canProvideAlpha = !isUndefinedOrNull(alphaValue);
104     double alpha = alphaValue->NumberValue();
105
106     v8::Local<v8::Value> betaValue = object->Get(v8::String::New("beta"));
107     if (betaValue.IsEmpty())
108         return 0;
109     bool canProvideBeta = !isUndefinedOrNull(betaValue);
110     double beta = betaValue->NumberValue();
111
112     v8::Local<v8::Value> gammaValue = object->Get(v8::String::New("gamma"));
113     if (gammaValue.IsEmpty())
114         return 0;
115     bool canProvideGamma = !isUndefinedOrNull(gammaValue);
116     double gamma = gammaValue->NumberValue();
117
118     if (!canProvideAlpha && !canProvideBeta && !canProvideGamma)
119         return 0;
120
121     return DeviceMotionData::RotationRate::create(canProvideAlpha, alpha, canProvideBeta, beta, canProvideGamma, gamma);
122 }
123
124 } // namespace
125
126 v8::Handle<v8::Value> V8DeviceMotionEvent::accelerationAccessorGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
127 {
128     INC_STATS("DOM.DeviceMotionEvent.acceleration._get");
129     v8::Handle<v8::Object> holder = info.Holder();
130     DeviceMotionEvent* imp = V8DeviceMotionEvent::toNative(holder);
131     if (!imp->deviceMotionData()->acceleration())
132         return v8::Null();
133     return createAccelerationObject(imp->deviceMotionData()->acceleration());
134 }
135
136 v8::Handle<v8::Value> V8DeviceMotionEvent::accelerationIncludingGravityAccessorGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
137 {
138     INC_STATS("DOM.DeviceMotionEvent.accelerationIncludingGravity._get");
139     v8::Handle<v8::Object> holder = info.Holder();
140     DeviceMotionEvent* imp = V8DeviceMotionEvent::toNative(holder);
141     if (!imp->deviceMotionData()->accelerationIncludingGravity())
142         return v8::Null();
143     return createAccelerationObject(imp->deviceMotionData()->accelerationIncludingGravity());
144 }
145
146 v8::Handle<v8::Value> V8DeviceMotionEvent::rotationRateAccessorGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
147 {
148     INC_STATS("DOM.DeviceMotionEvent.rotationRate._get");
149     v8::Handle<v8::Object> holder = info.Holder();
150     DeviceMotionEvent* imp = V8DeviceMotionEvent::toNative(holder);
151     if (!imp->deviceMotionData()->rotationRate())
152         return v8::Null();
153     return createRotationRateObject(imp->deviceMotionData()->rotationRate());
154 }
155
156 v8::Handle<v8::Value> V8DeviceMotionEvent::intervalAccessorGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
157 {
158     INC_STATS("DOM.DeviceMotionEvent.interval._get");
159     v8::Handle<v8::Object> holder = info.Holder();
160     DeviceMotionEvent* imp = V8DeviceMotionEvent::toNative(holder);
161     if (!imp->deviceMotionData()->canProvideInterval())
162         return v8::Null();
163     return v8::Number::New(imp->deviceMotionData()->interval());
164 }
165
166 v8::Handle<v8::Value> V8DeviceMotionEvent::initDeviceMotionEventCallback(const v8::Arguments& args)
167 {
168     DeviceMotionEvent* imp = V8DeviceMotionEvent::toNative(args.Holder());
169     STRING_TO_V8PARAMETER_EXCEPTION_BLOCK(V8Parameter<>, type, args[0]);
170     bool bubbles = args[1]->BooleanValue();
171     bool cancelable = args[2]->BooleanValue();
172     RefPtr<DeviceMotionData::Acceleration> acceleration = readAccelerationArgument(args[3]);
173     RefPtr<DeviceMotionData::Acceleration> accelerationIncludingGravity = readAccelerationArgument(args[4]);
174     RefPtr<DeviceMotionData::RotationRate> rotationRate = readRotationRateArgument(args[5]);
175     bool intervalProvided = !isUndefinedOrNull(args[6]);
176     double interval = args[6]->NumberValue();
177     RefPtr<DeviceMotionData> deviceMotionData = DeviceMotionData::create(acceleration, accelerationIncludingGravity, rotationRate, intervalProvided, interval);
178     imp->initDeviceMotionEvent(type, bubbles, cancelable, deviceMotionData.get());
179     return v8::Handle<v8::Value>();
180 }
181
182 } // namespace WebCore
183
184 #endif // ENABLE(DEVICE_ORIENTATION)