| /* |
| * Copyright (C) 2008 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: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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 APPLE INC. ``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 APPLE INC. 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 "JSGeolocation.h" |
| |
| #if ENABLE(GEOLOCATION) |
| |
| #include "CallbackFunction.h" |
| #include "DOMWindow.h" |
| #include "Geolocation.h" |
| #include "JSCustomPositionCallback.h" |
| #include "JSCustomPositionErrorCallback.h" |
| #include "JSDOMWindow.h" |
| #include "PositionOptions.h" |
| |
| #if !ENABLE(CLIENT_BASED_GEOLOCATION) |
| #include "GeolocationService.h" |
| #endif |
| |
| using namespace JSC; |
| using namespace std; |
| |
| namespace WebCore { |
| |
| static PassRefPtr<PositionOptions> createPositionOptions(ExecState* exec, JSValue value) |
| { |
| // Create default options. |
| RefPtr<PositionOptions> options = PositionOptions::create(); |
| |
| // Argument is optional (hence undefined is allowed), and null is allowed. |
| if (value.isUndefinedOrNull()) { |
| // Use default options. |
| return options.release(); |
| } |
| |
| // Given the above test, this will always yield an object. |
| JSObject* object = value.toObject(exec); |
| |
| // For all three properties, we apply the following ... |
| // - If the getter or the property's valueOf method throws an exception, we |
| // quit so as not to risk overwriting the exception. |
| // - If the value is absent or undefined, we don't override the default. |
| JSValue enableHighAccuracyValue = object->get(exec, Identifier(exec, "enableHighAccuracy")); |
| if (exec->hadException()) |
| return 0; |
| if (!enableHighAccuracyValue.isUndefined()) { |
| options->setEnableHighAccuracy(enableHighAccuracyValue.toBoolean(exec)); |
| if (exec->hadException()) |
| return 0; |
| } |
| |
| JSValue timeoutValue = object->get(exec, Identifier(exec, "timeout")); |
| if (exec->hadException()) |
| return 0; |
| if (!timeoutValue.isUndefined()) { |
| double timeoutNumber = timeoutValue.toNumber(exec); |
| if (exec->hadException()) |
| return 0; |
| // If the value is positive infinity, there's nothing to do. |
| if (!(isinf(timeoutNumber) && (timeoutNumber > 0))) { |
| // Wrap to int32 and force non-negative to match behavior of window.setTimeout. |
| options->setTimeout(max(0, timeoutValue.toInt32(exec))); |
| if (exec->hadException()) |
| return 0; |
| } |
| } |
| |
| JSValue maximumAgeValue = object->get(exec, Identifier(exec, "maximumAge")); |
| if (exec->hadException()) |
| return 0; |
| if (!maximumAgeValue.isUndefined()) { |
| double maximumAgeNumber = maximumAgeValue.toNumber(exec); |
| if (exec->hadException()) |
| return 0; |
| if (isinf(maximumAgeNumber) && (maximumAgeNumber > 0)) { |
| // If the value is positive infinity, clear maximumAge. |
| options->clearMaximumAge(); |
| } else { |
| // Wrap to int32 and force non-negative to match behavior of window.setTimeout. |
| options->setMaximumAge(max(0, maximumAgeValue.toInt32(exec))); |
| if (exec->hadException()) |
| return 0; |
| } |
| } |
| |
| return options.release(); |
| } |
| |
| JSValue JSGeolocation::getCurrentPosition(ExecState* exec) |
| { |
| // Arguments: PositionCallback, (optional)PositionErrorCallback, (optional)PositionOptions |
| |
| RefPtr<PositionCallback> positionCallback = createFunctionOnlyCallback<JSCustomPositionCallback>(exec, static_cast<JSDOMGlobalObject*>(exec->lexicalGlobalObject()), exec->argument(0)); |
| if (exec->hadException()) |
| return jsUndefined(); |
| ASSERT(positionCallback); |
| |
| RefPtr<PositionErrorCallback> positionErrorCallback = createFunctionOnlyCallback<JSCustomPositionErrorCallback>(exec, static_cast<JSDOMGlobalObject*>(exec->lexicalGlobalObject()), exec->argument(1), CallbackAllowUndefined | CallbackAllowNull); |
| if (exec->hadException()) |
| return jsUndefined(); |
| |
| RefPtr<PositionOptions> positionOptions = createPositionOptions(exec, exec->argument(2)); |
| if (exec->hadException()) |
| return jsUndefined(); |
| ASSERT(positionOptions); |
| |
| m_impl->getCurrentPosition(positionCallback.release(), positionErrorCallback.release(), positionOptions.release()); |
| return jsUndefined(); |
| } |
| |
| JSValue JSGeolocation::watchPosition(ExecState* exec) |
| { |
| // Arguments: PositionCallback, (optional)PositionErrorCallback, (optional)PositionOptions |
| |
| RefPtr<PositionCallback> positionCallback = createFunctionOnlyCallback<JSCustomPositionCallback>(exec, static_cast<JSDOMGlobalObject*>(exec->lexicalGlobalObject()), exec->argument(0)); |
| if (exec->hadException()) |
| return jsUndefined(); |
| ASSERT(positionCallback); |
| |
| RefPtr<PositionErrorCallback> positionErrorCallback = createFunctionOnlyCallback<JSCustomPositionErrorCallback>(exec, static_cast<JSDOMGlobalObject*>(exec->lexicalGlobalObject()), exec->argument(1), CallbackAllowUndefined | CallbackAllowNull); |
| if (exec->hadException()) |
| return jsUndefined(); |
| |
| RefPtr<PositionOptions> positionOptions = createPositionOptions(exec, exec->argument(2)); |
| if (exec->hadException()) |
| return jsUndefined(); |
| ASSERT(positionOptions); |
| |
| int watchID = m_impl->watchPosition(positionCallback.release(), positionErrorCallback.release(), positionOptions.release()); |
| return jsNumber(watchID); |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(GEOLOCATION) |