WebWheelEvent WebEventFactory::createWebWheelEvent(QWheelEvent* e, const QTransform& fromItemTransform)
{
float deltaX = 0;
float deltaY = 0;
float wheelTicksX = 0;
float wheelTicksY = 0;
WebWheelEvent::Granularity granularity = WebWheelEvent::ScrollByPixelWheelEvent;
WebEvent::Modifiers modifiers = modifiersForEvent(e->modifiers());
double timestamp = currentTimeForEvent(e);
if (e->orientation() == Qt::Horizontal) {
deltaX = e->delta();
wheelTicksX = deltaX / 120.0f;
} else {
deltaY = e->delta();
wheelTicksY = deltaY / 120.0f;
}
// Since we report the scroll by the pixel, convert the delta to pixel distance using standard scroll step.
// Use the same single scroll step as QTextEdit (in QTextEditPrivate::init [h,v]bar->setSingleStep)
static const float cDefaultQtScrollStep = 20.f;
// ### FIXME: Default from QtGui. Should use Qt platform theme API once configurable.
const int wheelScrollLines = 3;
deltaX = wheelTicksX * wheelScrollLines * cDefaultQtScrollStep;
deltaY = wheelTicksY * wheelScrollLines * cDefaultQtScrollStep;
// Transform the position and the pixel scrolling distance.
QLineF transformedScroll = fromItemTransform.map(QLineF(e->posF(), e->posF() + QPointF(deltaX, deltaY)));
IntPoint transformedPoint = transformedScroll.p1().toPoint();
IntPoint globalPoint = e->globalPosF().toPoint();
FloatSize transformedDelta(transformedScroll.dx(), transformedScroll.dy());
FloatSize wheelTicks(wheelTicksX, wheelTicksY);
return WebWheelEvent(WebEvent::Wheel, transformedPoint, globalPoint, transformedDelta, wheelTicks, granularity, modifiers, timestamp);
}
WebWheelEvent WebEventFactory::createWebWheelEvent(QWheelEvent* e)
{
float deltaX = 0;
float deltaY = 0;
float wheelTicksX = 0;
float wheelTicksY = 0;
WebWheelEvent::Granularity granularity = WebWheelEvent::ScrollByPixelWheelEvent;
WebEvent::Modifiers modifiers = modifiersForEvent(e->modifiers());
double timestamp = currentTimeForEvent(e);
// A delta that is not mod 120 indicates a device that is sending
// fine-resolution scroll events, so use the delta as number of wheel ticks
// and number of pixels to scroll.See also webkit.org/b/29601
bool fullTick = !(e->delta() % 120);
if (e->orientation() == Qt::Horizontal) {
deltaX = (fullTick) ? e->delta() / 120.0f : e->delta();
wheelTicksX = deltaX;
} else {
deltaY = (fullTick) ? e->delta() / 120.0f : e->delta();
wheelTicksY = deltaY;
}
// Use the same single scroll step as QTextEdit
// (in QTextEditPrivate::init [h,v]bar->setSingleStep)
static const float cDefaultQtScrollStep = 20.f;
deltaX *= (fullTick) ? QApplication::wheelScrollLines() * cDefaultQtScrollStep : 1;
deltaY *= (fullTick) ? QApplication::wheelScrollLines() * cDefaultQtScrollStep : 1;
return WebWheelEvent(WebEvent::Wheel, e->posF().toPoint(), e->globalPosF().toPoint(), FloatSize(deltaX, deltaY), FloatSize(wheelTicksX, wheelTicksY), granularity, modifiers, timestamp);
}
WebMouseEvent WebEventFactory::createWebMouseEvent(QMouseEvent* event, const QTransform& fromItemTransform, int eventClickCount)
{
static FloatPoint lastPos = FloatPoint(0, 0);
WebEvent::Type type = webEventTypeForEvent(event);
WebMouseEvent::Button button = mouseButtonForEvent(event);
float deltaX = event->pos().x() - lastPos.x();
float deltaY = event->pos().y() - lastPos.y();
int clickCount = eventClickCount;
WebEvent::Modifiers modifiers = modifiersForEvent(event->modifiers());
double timestamp = currentTimeForEvent(event);
lastPos.set(event->localPos().x(), event->localPos().y());
return WebMouseEvent(type, button, fromItemTransform.map(event->localPos()).toPoint(), event->screenPos().toPoint(), deltaX, deltaY, 0.0f, clickCount, modifiers, timestamp);
}
WebKeyboardEvent WebEventFactory::createWebKeyboardEvent(QKeyEvent* event)
{
const int state = event->modifiers();
WebEvent::Type type = webEventTypeForEvent(event);
const String text = event->text();
const String unmodifiedText = event->text();
bool isAutoRepeat = event->isAutoRepeat();
bool isSystemKey = false; // FIXME: No idea what that is.
bool isKeypad = (state & Qt::KeypadModifier);
const String keyIdentifier = keyIdentifierForQtKeyCode(event->key());
int windowsVirtualKeyCode = windowsKeyCodeForKeyEvent(event->key(), isKeypad);
int nativeVirtualKeyCode = event->nativeVirtualKey();
int macCharCode = 0;
WebEvent::Modifiers modifiers = modifiersForEvent(event->modifiers());
double timestamp = currentTimeForEvent(event);
return WebKeyboardEvent(type, text, unmodifiedText, keyIdentifier, windowsVirtualKeyCode, nativeVirtualKeyCode, macCharCode, isAutoRepeat, isKeypad, isSystemKey, modifiers, timestamp);
}
WebTouchEvent WebEventFactory::createWebTouchEvent(const QTouchEvent* event, const QTransform& fromItemTransform)
{
WebEvent::Type type = webEventTypeForEvent(event);
WebPlatformTouchPoint::TouchPointState state = static_cast<WebPlatformTouchPoint::TouchPointState>(0);
unsigned int id;
WebEvent::Modifiers modifiers = modifiersForEvent(event->modifiers());
double timestamp = currentTimeForEvent(event);
const QList<QTouchEvent::TouchPoint>& points = event->touchPoints();
Vector<WebPlatformTouchPoint, 6> m_touchPoints;
for (int i = 0; i < points.count(); ++i) {
const QTouchEvent::TouchPoint& touchPoint = points.at(i);
id = static_cast<unsigned>(touchPoint.id());
switch (touchPoint.state()) {
case Qt::TouchPointReleased:
state = WebPlatformTouchPoint::TouchReleased;
break;
case Qt::TouchPointMoved:
state = WebPlatformTouchPoint::TouchMoved;
break;
case Qt::TouchPointPressed:
state = WebPlatformTouchPoint::TouchPressed;
break;
case Qt::TouchPointStationary:
state = WebPlatformTouchPoint::TouchStationary;
break;
default:
ASSERT_NOT_REACHED();
break;
}
// Qt does not have a Qt::TouchPointCancelled point state, so if we receive a touch cancel event,
// simply cancel all touch points here.
if (type == WebEvent::TouchCancel)
state = WebPlatformTouchPoint::TouchCancelled;
IntSize radius(touchPoint.rect().width()/ 2, touchPoint.rect().height() / 2);
m_touchPoints.append(WebPlatformTouchPoint(id, state, touchPoint.screenPos().toPoint(), fromItemTransform.map(touchPoint.pos()).toPoint(), radius, 0.0, touchPoint.pressure()));
}
return WebTouchEvent(type, m_touchPoints, modifiers, timestamp);
}
WebTouchEvent WebEventFactory::createWebTouchEvent(const QTouchEvent* event)
{
WebEvent::Type type = webEventTypeForEvent(event);
WebPlatformTouchPoint::TouchPointState state = static_cast<WebPlatformTouchPoint::TouchPointState>(0);
unsigned int id;
WebEvent::Modifiers modifiers = modifiersForEvent(event->modifiers());
double timestamp = currentTimeForEvent(event);
const QList<QTouchEvent::TouchPoint>& points = event->touchPoints();
Vector<WebPlatformTouchPoint> m_touchPoints;
for (int i = 0; i < points.count(); ++i) {
id = static_cast<unsigned>(points.at(i).id());
switch (points.at(i).state()) {
case Qt::TouchPointReleased:
state = WebPlatformTouchPoint::TouchReleased;
break;
case Qt::TouchPointMoved:
state = WebPlatformTouchPoint::TouchMoved;
break;
case Qt::TouchPointPressed:
state = WebPlatformTouchPoint::TouchPressed;
break;
case Qt::TouchPointStationary:
state = WebPlatformTouchPoint::TouchStationary;
break;
default:
ASSERT_NOT_REACHED();
break;
}
m_touchPoints.append(WebPlatformTouchPoint(id, state, points.at(i).screenPos().toPoint(), points.at(i).pos().toPoint()));
}
return WebTouchEvent(type, m_touchPoints, modifiers, timestamp);
}
