1 /*

     2  * Copyright (C) 2010 Google 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 "JSDeviceOrientationEvent.h"

    28 

    29 #if ENABLE(DEVICE_ORIENTATION)

    30 

    31 #include "DeviceOrientation.h"

    32 #include "DeviceOrientationEvent.h"

    33 

    34 using namespace JSC;

    35 

    36 namespace WebCore {

    37 

    38 JSValue JSDeviceOrientationEvent::alpha(ExecState* exec) const

    39 {

    40     DeviceOrientationEvent* imp = static_cast<DeviceOrientationEvent*>(impl());

    41     if (!imp->orientation()->canProvideAlpha())

    42         return jsNull();

    43     return jsNumber(exec, imp->orientation()->alpha());

    44 }

    45 

    46 JSValue JSDeviceOrientationEvent::beta(ExecState* exec) const

    47 {

    48     DeviceOrientationEvent* imp = static_cast<DeviceOrientationEvent*>(impl());

    49     if (!imp->orientation()->canProvideBeta())

    50         return jsNull();

    51     return jsNumber(exec, imp->orientation()->beta());

    52 }

    53 

    54 JSValue JSDeviceOrientationEvent::gamma(ExecState* exec) const

    55 {

    56     DeviceOrientationEvent* imp = static_cast<DeviceOrientationEvent*>(impl());

    57     if (!imp->orientation()->canProvideGamma())

    58         return jsNull();

    59     return jsNumber(exec, imp->orientation()->gamma());

    60 }

    61 

    62 JSValue JSDeviceOrientationEvent::initDeviceOrientationEvent(ExecState* exec)

    63 {

    64     const String& type = ustringToString(exec->argument(0).toString(exec));

    65     bool bubbles = exec->argument(1).toBoolean(exec);

    66     bool cancelable = exec->argument(2).toBoolean(exec);

    67     // If alpha, beta or gamma are null or undefined, mark them as not provided.

    68     // Otherwise, use the standard JavaScript conversion.

    69     bool alphaProvided = !exec->argument(3).isUndefinedOrNull();

    70     double alpha = exec->argument(3).toNumber(exec);

    71     bool betaProvided = !exec->argument(4).isUndefinedOrNull();

    72     double beta = exec->argument(4).toNumber(exec);

    73     bool gammaProvided = !exec->argument(5).isUndefinedOrNull();

    74     double gamma = exec->argument(5).toNumber(exec);

    75     RefPtr<DeviceOrientation> orientation = DeviceOrientation::create(alphaProvided, alpha, betaProvided, beta, gammaProvided, gamma);

    76     DeviceOrientationEvent* imp = static_cast<DeviceOrientationEvent*>(impl());

    77     imp->initDeviceOrientationEvent(type, bubbles, cancelable, orientation.get());

    78     return jsUndefined();

    79 }

    80 

    81 } // namespace WebCore

    82 

    83 #endif // ENABLE(DEVICE_ORIENTATION)