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generate fake mouseevents on touch for xwayland

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on xwayland clients, send mouse press, move and release
corresponding to touchDown, move and release
this gives a very basic touchscreen support on
xwayland clients

reviewed-by: Martin Graesslin <mgraesslin@kde.org>
This commit is contained in:
Marco Martin 2015-06-20 14:18:31 -07:00
parent 42a1e1e99e
commit 7fd15ea066
1 changed files with 30 additions and 1 deletions
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31
src/wayland/seat_interface.cpp
View file

@ -862,7 +862,19 @@ qint32 SeatInterface::touchDown(const QPointF &globalPosition)
const quint32 serial = display()->nextSerial();
if (d->touchInterface.focus.touch && d->touchInterface.focus.surface) {
d->touchInterface.focus.touch->down(id, serial, globalPosition - d->touchInterface.focus.offset);
} else if (id == 0 && focusedTouchSurface()) {
auto p = d->pointerForSurface(focusedTouchSurface());
if (!p) {
return id;
}
const QPointF pos = globalPosition - d->touchInterface.focus.offset;
wl_pointer_send_enter(p->resource(), serial,
focusedTouchSurface()->resource(),
wl_fixed_from_double(pos.x()), wl_fixed_from_double(pos.y()));
wl_pointer_send_button(p->resource(), serial, timestamp(), BTN_LEFT, WL_POINTER_BUTTON_STATE_PRESSED);
}
d->touchInterface.ids << id;
return id;
}
@ -872,7 +884,16 @@ void SeatInterface::touchMove(qint32 id, const QPointF &globalPosition)
Q_D();
if (d->touchInterface.focus.touch && d->touchInterface.focus.surface) {
d->touchInterface.focus.touch->move(id, globalPosition - d->touchInterface.focus.offset);
}
} else if (id == 0 && focusedTouchSurface()) {
auto p = d->pointerForSurface(focusedTouchSurface());
if (!p) {
return;
}
const QPointF pos = globalPosition - d->touchInterface.focus.offset;
wl_pointer_send_motion(p->resource(), timestamp(),
wl_fixed_from_double(pos.x()), wl_fixed_from_double(pos.y()));
}
}
void SeatInterface::touchUp(qint32 id)
@ -881,6 +902,14 @@ void SeatInterface::touchUp(qint32 id)
Q_ASSERT(d->touchInterface.ids.contains(id));
if (d->touchInterface.focus.touch && d->touchInterface.focus.surface) {
d->touchInterface.focus.touch->up(id, display()->nextSerial());
} else if (id == 0 && focusedTouchSurface()) {
const quint32 serial = display()->nextSerial();
auto p = d->pointerForSurface(focusedTouchSurface());
if (!p) {
return;
}
wl_pointer_send_button(p->resource(), serial, timestamp(), BTN_LEFT, WL_POINTER_BUTTON_STATE_RELEASED);
}
d->touchInterface.ids.removeAll(id);
}