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/*
* Copyright (C) 2010 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "V8DeviceMotionEvent.h"
#include "bindings/v8/V8Binding.h"
#include "modules/device_orientation/DeviceMotionData.h"
#include <v8.h>
namespace WebCore {
namespace {
RefPtr<DeviceMotionData::Acceleration> readAccelerationArgument(v8::Local<v8::Value> value, v8::Isolate* isolate)
{
if (isUndefinedOrNull(value))
return 0;
// Given the test above, this will always yield an object.
v8::Local<v8::Object> object = value->ToObject();
v8::Local<v8::Value> xValue = object->Get(v8AtomicString(isolate, "x"));
if (xValue.IsEmpty())
return 0;
bool canProvideX = !isUndefinedOrNull(xValue);
double x = xValue->NumberValue();
v8::Local<v8::Value> yValue = object->Get(v8AtomicString(isolate, "y"));
if (yValue.IsEmpty())
return 0;
bool canProvideY = !isUndefinedOrNull(yValue);
double y = yValue->NumberValue();
v8::Local<v8::Value> zValue = object->Get(v8AtomicString(isolate, "z"));
if (zValue.IsEmpty())
return 0;
bool canProvideZ = !isUndefinedOrNull(zValue);
double z = zValue->NumberValue();
if (!canProvideX && !canProvideY && !canProvideZ)
return 0;
return DeviceMotionData::Acceleration::create(canProvideX, x, canProvideY, y, canProvideZ, z);
}
RefPtr<DeviceMotionData::RotationRate> readRotationRateArgument(v8::Local<v8::Value> value, v8::Isolate* isolate)
{
if (isUndefinedOrNull(value))
return 0;
// Given the test above, this will always yield an object.
v8::Local<v8::Object> object = value->ToObject();
v8::Local<v8::Value> alphaValue = object->Get(v8AtomicString(isolate, "alpha"));
if (alphaValue.IsEmpty())
return 0;
bool canProvideAlpha = !isUndefinedOrNull(alphaValue);
double alpha = alphaValue->NumberValue();
v8::Local<v8::Value> betaValue = object->Get(v8AtomicString(isolate, "beta"));
if (betaValue.IsEmpty())
return 0;
bool canProvideBeta = !isUndefinedOrNull(betaValue);
double beta = betaValue->NumberValue();
v8::Local<v8::Value> gammaValue = object->Get(v8AtomicString(isolate, "gamma"));
if (gammaValue.IsEmpty())
return 0;
bool canProvideGamma = !isUndefinedOrNull(gammaValue);
double gamma = gammaValue->NumberValue();
if (!canProvideAlpha && !canProvideBeta && !canProvideGamma)
return 0;
return DeviceMotionData::RotationRate::create(canProvideAlpha, alpha, canProvideBeta, beta, canProvideGamma, gamma);
}
} // namespace
void V8DeviceMotionEvent::initDeviceMotionEventMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
{
DeviceMotionEvent* imp = V8DeviceMotionEvent::toNative(info.Holder());
v8::Isolate* isolate = info.GetIsolate();
V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, type, info[0]);
bool bubbles = info[1]->BooleanValue();
bool cancelable = info[2]->BooleanValue();
RefPtr<DeviceMotionData::Acceleration> acceleration = readAccelerationArgument(info[3], isolate);
RefPtr<DeviceMotionData::Acceleration> accelerationIncludingGravity = readAccelerationArgument(info[4], isolate);
RefPtr<DeviceMotionData::RotationRate> rotationRate = readRotationRateArgument(info[5], isolate);
bool intervalProvided = !isUndefinedOrNull(info[6]);
double interval = info[6]->NumberValue();
RefPtr<DeviceMotionData> deviceMotionData = DeviceMotionData::create(acceleration, accelerationIncludingGravity, rotationRate, intervalProvided, interval);
imp->initDeviceMotionEvent(type, bubbles, cancelable, deviceMotionData.get());
}
} // namespace WebCore
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