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seat: add wlr_seat_touch_{send,notify}_frame

Browse source 
The wl_touch.frame event is used to group multiple touch events
together. Instead of sending it immediately after each touch event,
rely on the backend to send it (and on the compositor to relay it).

This is a breaking change because compositors now need to manually
send touch frame events instead of relying on wlr_seat to do it.
This commit is contained in:
Simon Ser 2021-06-30 13:09:45 +02:00
parent 22fd411bc3
commit b934fbaf04
3 changed files with 45 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

36
types/seat/wlr_seat_touch.c
View file

@ -33,6 +33,10 @@ static void default_touch_enter(struct wlr_seat_touch_grab *grab,
// not handled by default
}
static void default_touch_frame(struct wlr_seat_touch_grab *grab) {
wlr_seat_touch_send_frame(grab->seat);
}
static void default_touch_cancel(struct wlr_seat_touch_grab *grab) {
// cannot be cancelled
}
@ -42,6 +46,7 @@ const struct wlr_touch_grab_interface default_touch_grab_impl = {
.up = default_touch_up,
.motion = default_touch_motion,
.enter = default_touch_enter,
.frame = default_touch_frame,
.cancel = default_touch_cancel,
};
@ -226,6 +231,13 @@ void wlr_seat_touch_notify_motion(struct wlr_seat *seat, uint32_t time,
grab->interface->motion(grab, time, point);
}
void wlr_seat_touch_notify_frame(struct wlr_seat *seat) {
struct wlr_seat_touch_grab *grab = seat->touch_state.grab;
if (grab->interface->frame) {
grab->interface->frame(grab);
}
}
static void handle_point_focus_destroy(struct wl_listener *listener,
void *data) {
struct wlr_touch_point *point =
@ -303,9 +315,10 @@ uint32_t wlr_seat_touch_send_down(struct wlr_seat *seat,
}
wl_touch_send_down(resource, serial, time, surface->resource,
touch_id, wl_fixed_from_double(sx), wl_fixed_from_double(sy));
wl_touch_send_frame(resource);
}
point->client->needs_touch_frame = true;
return serial;
}
@ -323,8 +336,9 @@ void wlr_seat_touch_send_up(struct wlr_seat *seat, uint32_t time, int32_t touch_
continue;
}
wl_touch_send_up(resource, serial, time, touch_id);
wl_touch_send_frame(resource);
}
point->client->needs_touch_frame = true;
}
void wlr_seat_touch_send_motion(struct wlr_seat *seat, uint32_t time, int32_t touch_id,
@ -342,7 +356,23 @@ void wlr_seat_touch_send_motion(struct wlr_seat *seat, uint32_t time, int32_t to
}
wl_touch_send_motion(resource, time, touch_id, wl_fixed_from_double(sx),
wl_fixed_from_double(sy));
wl_touch_send_frame(resource);
}
point->client->needs_touch_frame = true;
}
void wlr_seat_touch_send_frame(struct wlr_seat *seat) {
struct wlr_seat_client *seat_client;
wl_list_for_each(seat_client, &seat->clients, link) {
if (!seat_client->needs_touch_frame) {
continue;
}
struct wl_resource *resource;
wl_resource_for_each(resource, &seat_client->touches) {
wl_touch_send_frame(resource);
}
seat_client->needs_touch_frame = false;
}
}