nsEventStatus GestureEventListener::HandleInputTouchSingleStart()
{
switch (mState) {
case GESTURE_NONE:
SetState(GESTURE_FIRST_SINGLE_TOUCH_DOWN);
mTouchStartPosition = mLastTouchInput.mTouches[0].mLocalScreenPoint;
CreateLongTapTimeoutTask();
CreateMaxTapTimeoutTask();
break;
case GESTURE_FIRST_SINGLE_TOUCH_UP:
SetState(GESTURE_SECOND_SINGLE_TOUCH_DOWN);
break;
default:
NS_WARNING("Unhandled state upon single touch start");
SetState(GESTURE_NONE);
break;
}
return nsEventStatus_eIgnore;
}
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();
nsEventStatus tapupStatus = mAsyncPanZoomController->HandleGestureEvent(
CreateTapEvent(mLastTouchInput, TapGestureInput::TAPGESTURE_UP));
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);
mAsyncPanZoomController->HandleGestureEvent(
CreateTapEvent(mLastTouchInput, TapGestureInput::TAPGESTURE_DOUBLE));
break;
}
case GESTURE_FIRST_SINGLE_TOUCH_MAX_TAP_DOWN:
CancelLongTapTimeoutTask();
SetState(GESTURE_NONE);
TriggerSingleTapConfirmedEvent();
break;
case GESTURE_LONG_TOUCH_DOWN: {
SetState(GESTURE_NONE);
mAsyncPanZoomController->HandleGestureEvent(
CreateTapEvent(mLastTouchInput, TapGestureInput::TAPGESTURE_LONG_UP));
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;
}
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);
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.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.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,
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;
}
