nsEventStatus GestureEventListener::HandleDoubleTap(const MultiTouchInput& aEvent)
{
TapGestureInput tapEvent(TapGestureInput::TAPGESTURE_DOUBLE, aEvent.mTime, aEvent.mTouches[0].mScreenPoint);
return mAsyncPanZoomController->ReceiveInputEvent(tapEvent);
}
nsEventStatus GestureEventListener::HandleSingleTapConfirmedEvent(const MultiTouchInput& aEvent)
{
TapGestureInput tapEvent(TapGestureInput::TAPGESTURE_CONFIRMED, aEvent.mTime, aEvent.mTouches[0].mScreenPoint);
return mAsyncPanZoomController->ReceiveInputEvent(tapEvent);
}
bool IMEView::sceneEvent(QEvent* event)
{
switch (event->type()) {
case QEvent::GestureOverride: {
// consume all gestures if we are handling touches
QGestureEvent* ge = static_cast<QGestureEvent*>(event);
QGesture* g = 0;
if ((g = ge->gesture(Qt::TapGesture))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
else if ((g = ge->gesture(Qt::TapAndHoldGesture))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
else if ((g = ge->gesture(Qt::PinchGesture))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
else if ((g = ge->gesture((Qt::GestureType) SysMgrGestureFlick))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
else if ((g = ge->gesture((Qt::GestureType) SysMgrGestureSingleClick))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
else if ((g = ge->gesture((Qt::GestureType) SysMgrGestureSingleClick))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
}
break;
case QEvent::Gesture: {
QGestureEvent* ge = static_cast<QGestureEvent*>(event);
QGesture* g = ge->gesture(Qt::TapGesture);
if (g && g->state() == Qt::GestureFinished) {
tapEvent(static_cast<QTapGesture*>(g));
return true;
}
if (!g) {
QGesture* g = ge->gesture((Qt::GestureType) SysMgrGestureScreenEdgeFlick);
if (g && g->state() == Qt::GestureFinished) {
screenEdgeFlickEvent(static_cast<ScreenEdgeFlickGesture*>(g));
return true;
}
}
}
break;
case QEvent::TouchBegin:
touchBegin(static_cast<QTouchEvent*>(event));
return event->isAccepted();
case QEvent::TouchUpdate:
touchUpdate(static_cast<QTouchEvent*>(event));
return event->isAccepted();
case QEvent::TouchEnd:
touchEnd(static_cast<QTouchEvent*>(event));
return event->isAccepted();
default:
break;
}
return QGraphicsObject::sceneEvent(event);
}
nsEventStatus GestureEventListener::HandleInputTouchEnd()
{
nsEventStatus rv = nsEventStatus_eIgnore;
switch (mState) {
case GESTURE_NONE:
// GEL doesn't have a dedicated state for PANNING handled in APZC thus ignore.
break;
case GESTURE_FIRST_SINGLE_TOUCH_DOWN: {
CancelLongTapTimeoutTask();
CancelMaxTapTimeoutTask();
TapGestureInput tapEvent(TapGestureInput::TAPGESTURE_UP,
mLastTouchInput.mTime,
mLastTouchInput.mTouches[0].mScreenPoint,
mLastTouchInput.modifiers);
rv = mAsyncPanZoomController->HandleGestureEvent(tapEvent);
if (rv == nsEventStatus_eIgnore) {
SetState(GESTURE_FIRST_SINGLE_TOUCH_UP);
CreateMaxTapTimeoutTask();
} else {
// We sent the tapup into content without waiting for a double tap
SetState(GESTURE_NONE);
}
break;
}
case GESTURE_SECOND_SINGLE_TOUCH_DOWN: {
CancelMaxTapTimeoutTask();
SetState(GESTURE_NONE);
TapGestureInput tapEvent(TapGestureInput::TAPGESTURE_DOUBLE,
mLastTouchInput.mTime,
mLastTouchInput.mTouches[0].mScreenPoint,
mLastTouchInput.modifiers);
rv = mAsyncPanZoomController->HandleGestureEvent(tapEvent);
break;
}
case GESTURE_FIRST_SINGLE_TOUCH_MAX_TAP_DOWN:
CancelLongTapTimeoutTask();
SetState(GESTURE_NONE);
TriggerSingleTapConfirmedEvent();
break;
case GESTURE_LONG_TOUCH_DOWN: {
SetState(GESTURE_NONE);
TapGestureInput tapEvent(TapGestureInput::TAPGESTURE_LONG_UP,
mLastTouchInput.mTime,
mLastTouchInput.mTouches[0].mScreenPoint,
mLastTouchInput.modifiers);
rv = mAsyncPanZoomController->HandleGestureEvent(tapEvent);
break;
}
case GESTURE_MULTI_TOUCH_DOWN:
if (mTouches.Length() < 2) {
SetState(GESTURE_NONE);
}
break;
case GESTURE_PINCH:
if (mTouches.Length() < 2) {
SetState(GESTURE_NONE);
PinchGestureInput pinchEvent(PinchGestureInput::PINCHGESTURE_END,
mLastTouchInput.mTime,
ScreenPoint(),
1.0f,
1.0f,
mLastTouchInput.modifiers);
rv = mAsyncPanZoomController->HandleGestureEvent(pinchEvent);
}
break;
default:
NS_WARNING("Unhandled state upon touch end");
SetState(GESTURE_NONE);
break;
}
return rv;
}
nsEventStatus GestureEventListener::HandleLongTapEvent(const MultiTouchInput& aEvent)
{
TapGestureInput tapEvent(TapGestureInput::TAPGESTURE_LONG, aEvent.mTime, aEvent.mTouches[0].mScreenPoint);
return mAsyncPanZoomController->HandleInputEvent(tapEvent);
}
nsEventStatus GestureEventListener::HandleInputTouchEnd()
{
// We intentionally do not pass apzc return statuses up since
// it may cause apzc stay in the touching state even after
// gestures are completed (please see Bug 1013378 for reference).
nsEventStatus rv = nsEventStatus_eIgnore;
switch (mState) {
case GESTURE_NONE:
// GEL doesn't have a dedicated state for PANNING handled in APZC thus ignore.
break;
case GESTURE_FIRST_SINGLE_TOUCH_DOWN: {
CancelLongTapTimeoutTask();
CancelMaxTapTimeoutTask();
TapGestureInput tapEvent(TapGestureInput::TAPGESTURE_UP,
mLastTouchInput.mTime,
mLastTouchInput.mTimeStamp,
mLastTouchInput.mTouches[0].mScreenPoint,
mLastTouchInput.modifiers);
nsEventStatus tapupStatus = mAsyncPanZoomController->HandleGestureEvent(tapEvent);
if (tapupStatus == nsEventStatus_eIgnore) {
SetState(GESTURE_FIRST_SINGLE_TOUCH_UP);
CreateMaxTapTimeoutTask();
} else {
// We sent the tapup into content without waiting for a double tap
SetState(GESTURE_NONE);
}
break;
}
case GESTURE_SECOND_SINGLE_TOUCH_DOWN: {
CancelMaxTapTimeoutTask();
SetState(GESTURE_NONE);
TapGestureInput tapEvent(TapGestureInput::TAPGESTURE_DOUBLE,
mLastTouchInput.mTime,
mLastTouchInput.mTimeStamp,
mLastTouchInput.mTouches[0].mScreenPoint,
mLastTouchInput.modifiers);
mAsyncPanZoomController->HandleGestureEvent(tapEvent);
break;
}
case GESTURE_FIRST_SINGLE_TOUCH_MAX_TAP_DOWN:
CancelLongTapTimeoutTask();
SetState(GESTURE_NONE);
TriggerSingleTapConfirmedEvent();
break;
case GESTURE_LONG_TOUCH_DOWN: {
SetState(GESTURE_NONE);
TapGestureInput tapEvent(TapGestureInput::TAPGESTURE_LONG_UP,
mLastTouchInput.mTime,
mLastTouchInput.mTimeStamp,
mLastTouchInput.mTouches[0].mScreenPoint,
mLastTouchInput.modifiers);
mAsyncPanZoomController->HandleGestureEvent(tapEvent);
break;
}
case GESTURE_MULTI_TOUCH_DOWN:
if (mTouches.Length() < 2) {
SetState(GESTURE_NONE);
}
break;
case GESTURE_PINCH:
if (mTouches.Length() < 2) {
SetState(GESTURE_NONE);
PinchGestureInput pinchEvent(PinchGestureInput::PINCHGESTURE_END,
mLastTouchInput.mTime,
mLastTouchInput.mTimeStamp,
ScreenPoint(),
1.0f,
1.0f,
mLastTouchInput.modifiers);
mAsyncPanZoomController->HandleGestureEvent(pinchEvent);
}
rv = nsEventStatus_eConsumeNoDefault;
break;
default:
NS_WARNING("Unhandled state upon touch end");
SetState(GESTURE_NONE);
break;
}
return rv;
}
