| /* |
| * 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 |