NativeWebTouchEventIOS.mm [plain text]
/*
* Copyright (C) 2012 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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/
#import "config.h"
#import "NativeWebTouchEvent.h"
#if PLATFORM(IOS)
#import "WebEvent.h"
#import <Foundation/NSGeometry.h>
#import <UIKit/UITouch.h>
#import <UIKit/UIWebTouchEventsGestureRecognizer.h>
#import <WebCore/IntPoint.h>
#import <wtf/CurrentTime.h>
namespace WebKit {
static inline WebEvent::Type webEventTypeForUIWebTouchEventType(UIWebTouchEventType type)
{
switch (type) {
case UIWebTouchEventTouchBegin:
return WebEvent::TouchStart;
case UIWebTouchEventTouchChange:
return WebEvent::TouchMove;
case UIWebTouchEventTouchEnd:
return WebEvent::TouchEnd;
case UIWebTouchEventTouchCancel:
return WebEvent::TouchCancel;
}
}
static WebPlatformTouchPoint::TouchPointState convertTouchPhase(UITouchPhase touchPhase)
{
switch (touchPhase) {
case UITouchPhaseBegan:
return WebPlatformTouchPoint::TouchPressed;
case UITouchPhaseMoved:
return WebPlatformTouchPoint::TouchMoved;
case UITouchPhaseStationary:
return WebPlatformTouchPoint::TouchStationary;
case UITouchPhaseEnded:
return WebPlatformTouchPoint::TouchReleased;
case UITouchPhaseCancelled:
return WebPlatformTouchPoint::TouchCancelled;
default:
ASSERT_NOT_REACHED();
return WebPlatformTouchPoint::TouchStationary;
}
}
static inline WebCore::IntPoint positionForCGPoint(CGPoint position)
{
return WebCore::IntPoint(position);
}
static inline Vector<WebPlatformTouchPoint> extractWebTouchPoint(const _UIWebTouchEvent* event)
{
unsigned touchCount = event->touchPointCount;
Vector<WebPlatformTouchPoint> touchPointList;
touchPointList.reserveInitialCapacity(touchCount);
for (unsigned i = 0; i < touchCount; ++i) {
const _UIWebTouchPoint& touchPoint = event->touchPoints[i];
unsigned identifier = touchPoint.identifier;
WebCore::IntPoint location = positionForCGPoint(touchPoint.locationInDocumentCoordinates);
WebPlatformTouchPoint::TouchPointState phase = convertTouchPhase(touchPoint.phase);
touchPointList.uncheckedAppend(WebPlatformTouchPoint(identifier, location, phase));
}
return touchPointList;
}
NativeWebTouchEvent::NativeWebTouchEvent(const _UIWebTouchEvent* event)
: WebTouchEvent(webEventTypeForUIWebTouchEventType(event->type), static_cast<Modifiers>(0), event->timestamp, extractWebTouchPoint(event), positionForCGPoint(event->locationInDocumentCoordinates), event->inJavaScriptGesture, event->scale, event->rotation)
{
}
} // namespace WebKit
#endif // PLATFORM(IOS)