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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"
#if ENABLE(DEVICE_ORIENTATION)
#include "JSDeviceMotionEvent.h"
#include "DeviceMotionData.h"
#include "DeviceMotionEvent.h"
#include <runtime/ObjectConstructor.h>
using namespace JSC;
namespace WebCore {
static PassRefPtr<DeviceMotionData::Acceleration> readAccelerationArgument(JSValue value, ExecState* exec)
{
if (value.isUndefinedOrNull())
return 0;
// Given the above test, this will always yield an object.
JSObject* object = value.toObject(exec);
JSValue xValue = object->get(exec, Identifier(exec, "x"));
if (exec->hadException())
return 0;
bool canProvideX = !xValue.isUndefinedOrNull();
double x = xValue.toNumber(exec);
if (exec->hadException())
return 0;
JSValue yValue = object->get(exec, Identifier(exec, "y"));
if (exec->hadException())
return 0;
bool canProvideY = !yValue.isUndefinedOrNull();
double y = yValue.toNumber(exec);
if (exec->hadException())
return 0;
JSValue zValue = object->get(exec, Identifier(exec, "z"));
if (exec->hadException())
return 0;
bool canProvideZ = !zValue.isUndefinedOrNull();
double z = zValue.toNumber(exec);
if (exec->hadException())
return 0;
if (!canProvideX && !canProvideY && !canProvideZ)
return 0;
return DeviceMotionData::Acceleration::create(canProvideX, x, canProvideY, y, canProvideZ, z);
}
static PassRefPtr<DeviceMotionData::RotationRate> readRotationRateArgument(JSValue value, ExecState* exec)
{
if (value.isUndefinedOrNull())
return 0;
// Given the above test, this will always yield an object.
JSObject* object = value.toObject(exec);
JSValue alphaValue = object->get(exec, Identifier(exec, "alpha"));
if (exec->hadException())
return 0;
bool canProvideAlpha = !alphaValue.isUndefinedOrNull();
double alpha = alphaValue.toNumber(exec);
if (exec->hadException())
return 0;
JSValue betaValue = object->get(exec, Identifier(exec, "beta"));
if (exec->hadException())
return 0;
bool canProvideBeta = !betaValue.isUndefinedOrNull();
double beta = betaValue.toNumber(exec);
if (exec->hadException())
return 0;
JSValue gammaValue = object->get(exec, Identifier(exec, "gamma"));
if (exec->hadException())
return 0;
bool canProvideGamma = !gammaValue.isUndefinedOrNull();
double gamma = gammaValue.toNumber(exec);
if (exec->hadException())
return 0;
if (!canProvideAlpha && !canProvideBeta && !canProvideGamma)
return 0;
return DeviceMotionData::RotationRate::create(canProvideAlpha, alpha, canProvideBeta, beta, canProvideGamma, gamma);
}
static JSObject* createAccelerationObject(const DeviceMotionData::Acceleration* acceleration, ExecState* exec)
{
JSObject* object = constructEmptyObject(exec);
object->putDirect(exec->vm(), Identifier(exec, "x"), acceleration->canProvideX() ? jsNumber(acceleration->x()) : jsNull());
object->putDirect(exec->vm(), Identifier(exec, "y"), acceleration->canProvideY() ? jsNumber(acceleration->y()) : jsNull());
object->putDirect(exec->vm(), Identifier(exec, "z"), acceleration->canProvideZ() ? jsNumber(acceleration->z()) : jsNull());
return object;
}
static JSObject* createRotationRateObject(const DeviceMotionData::RotationRate* rotationRate, ExecState* exec)
{
JSObject* object = constructEmptyObject(exec);
object->putDirect(exec->vm(), Identifier(exec, "alpha"), rotationRate->canProvideAlpha() ? jsNumber(rotationRate->alpha()) : jsNull());
object->putDirect(exec->vm(), Identifier(exec, "beta"), rotationRate->canProvideBeta() ? jsNumber(rotationRate->beta()) : jsNull());
object->putDirect(exec->vm(), Identifier(exec, "gamma"), rotationRate->canProvideGamma() ? jsNumber(rotationRate->gamma()) : jsNull());
return object;
}
JSValue JSDeviceMotionEvent::acceleration(ExecState* exec) const
{
DeviceMotionEvent* imp = static_cast<DeviceMotionEvent*>(impl());
if (!imp->deviceMotionData()->acceleration())
return jsNull();
return createAccelerationObject(imp->deviceMotionData()->acceleration(), exec);
}
JSValue JSDeviceMotionEvent::accelerationIncludingGravity(ExecState* exec) const
{
DeviceMotionEvent* imp = static_cast<DeviceMotionEvent*>(impl());
if (!imp->deviceMotionData()->accelerationIncludingGravity())
return jsNull();
return createAccelerationObject(imp->deviceMotionData()->accelerationIncludingGravity(), exec);
}
JSValue JSDeviceMotionEvent::rotationRate(ExecState* exec) const
{
DeviceMotionEvent* imp = static_cast<DeviceMotionEvent*>(impl());
if (!imp->deviceMotionData()->rotationRate())
return jsNull();
return createRotationRateObject(imp->deviceMotionData()->rotationRate(), exec);
}
JSValue JSDeviceMotionEvent::interval(ExecState*) const
{
DeviceMotionEvent* imp = static_cast<DeviceMotionEvent*>(impl());
if (!imp->deviceMotionData()->canProvideInterval())
return jsNull();
return jsNumber(imp->deviceMotionData()->interval());
}
JSValue JSDeviceMotionEvent::initDeviceMotionEvent(ExecState* exec)
{
const String type = exec->argument(0).toString(exec)->value(exec);
bool bubbles = exec->argument(1).toBoolean(exec);
bool cancelable = exec->argument(2).toBoolean(exec);
// If any of the parameters are null or undefined, mark them as not provided.
// Otherwise, use the standard JavaScript conversion.
RefPtr<DeviceMotionData::Acceleration> acceleration = readAccelerationArgument(exec->argument(3), exec);
if (exec->hadException())
return jsUndefined();
RefPtr<DeviceMotionData::Acceleration> accelerationIncludingGravity = readAccelerationArgument(exec->argument(4), exec);
if (exec->hadException())
return jsUndefined();
RefPtr<DeviceMotionData::RotationRate> rotationRate = readRotationRateArgument(exec->argument(5), exec);
if (exec->hadException())
return jsUndefined();
bool intervalProvided = !exec->argument(6).isUndefinedOrNull();
double interval = exec->argument(6).toNumber(exec);
RefPtr<DeviceMotionData> deviceMotionData = DeviceMotionData::create(acceleration, accelerationIncludingGravity, rotationRate, intervalProvided, interval);
DeviceMotionEvent* imp = static_cast<DeviceMotionEvent*>(impl());
imp->initDeviceMotionEvent(type, bubbles, cancelable, deviceMotionData.get());
return jsUndefined();
}
} // namespace WebCore
#endif // ENABLE(DEVICE_ORIENTATION)
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