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libweston: Implement touch timestamps for input_timestamps_unstable_v1 

Implement the zwp_input_timestamps_manager_v1.get_touch_timestamps
request to subscribe to timestamp events for wl_touch resources. Ensure
that the request handling code can gracefully handle inert touch
resources.

Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Alexandros Frantzis 2018-02-20 14:07:03 +02:00 committed by Pekka Paalanen
parent db907b7188
commit d715784734
3 changed files with 108 additions and 7 deletions
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2
libweston/compositor.h
View File

@ -415,6 +415,8 @@ struct weston_touch {
wl_fixed_t grab_x, grab_y;
uint32_t grab_serial;
struct timespec grab_time;
struct wl_list timestamps_list;
};
void

61
libweston/input.c
View File

@ -758,10 +758,14 @@ weston_touch_send_down(struct weston_touch *touch, const struct timespec *time,
resource_list = &touch->focus_resource_list;
serial = wl_display_next_serial(display);
msecs = timespec_to_msec(time);
wl_resource_for_each(resource, resource_list)
wl_touch_send_down(resource, serial, msecs,
touch->focus->surface->resource,
touch_id, sx, sy);
wl_resource_for_each(resource, resource_list) {
send_timestamps_for_input_resource(resource,
&touch->timestamps_list,
time);
wl_touch_send_down(resource, serial, msecs,
touch->focus->surface->resource,
touch_id, sx, sy);
}
}
static void
@ -798,8 +802,12 @@ weston_touch_send_up(struct weston_touch *touch, const struct timespec *time,
resource_list = &touch->focus_resource_list;
serial = wl_display_next_serial(display);
msecs = timespec_to_msec(time);
wl_resource_for_each(resource, resource_list)
wl_resource_for_each(resource, resource_list) {
send_timestamps_for_input_resource(resource,
&touch->timestamps_list,
time);
wl_touch_send_up(resource, serial, msecs, touch_id);
}
}
static void
@ -839,6 +847,9 @@ weston_touch_send_motion(struct weston_touch *touch,
resource_list = &touch->focus_resource_list;
msecs = timespec_to_msec(time);
wl_resource_for_each(resource, resource_list) {
send_timestamps_for_input_resource(resource,
&touch->timestamps_list,
time);
wl_touch_send_motion(resource, msecs,
touch_id, sx, sy);
}
@ -1276,6 +1287,7 @@ weston_touch_create(void)
touch->default_grab.touch = touch;
touch->grab = &touch->default_grab;
wl_signal_init(&touch->focus_signal);
wl_list_init(&touch->timestamps_list);
return touch;
}
@ -1297,6 +1309,7 @@ weston_touch_destroy(struct weston_touch *touch)
wl_list_remove(&touch->focus_resource_list);
wl_list_remove(&touch->focus_view_listener.link);
wl_list_remove(&touch->focus_resource_listener.link);
wl_list_remove(&touch->timestamps_list);
free(touch);
}
@ -2647,6 +2660,19 @@ seat_get_keyboard(struct wl_client *client, struct wl_resource *resource,
}
}
static void
destroy_touch_resource(struct wl_resource *resource)
{
struct weston_touch *touch = wl_resource_get_user_data(resource);
wl_list_remove(wl_resource_get_link(resource));
if (touch) {
remove_input_resource_from_timestamps(resource,
&touch->timestamps_list);
}
}
static void
touch_release(struct wl_client *client, struct wl_resource *resource)
{
@ -2682,7 +2708,7 @@ seat_get_touch(struct wl_client *client, struct wl_resource *resource,
wl_list_init(wl_resource_get_link(cr));
wl_resource_set_implementation(cr, &touch_interface,
touch, unbind_resource);
touch, destroy_touch_resource);
/* If we don't have a touch_state, the resource is inert, so there
* is nothing more to set up */
@ -4731,7 +4757,28 @@ input_timestamps_manager_get_touch_timestamps(struct wl_client *client,
uint32_t id,
struct wl_resource *touch_resource)
{
wl_client_post_no_memory(client);
struct weston_touch *touch = wl_resource_get_user_data(touch_resource);
struct wl_resource *input_ts;
input_ts = wl_resource_create(client,
&zwp_input_timestamps_v1_interface,
1, id);
if (!input_ts) {
wl_client_post_no_memory(client);
return;
}
if (touch) {
wl_list_insert(&touch->timestamps_list,
wl_resource_get_link(input_ts));
} else {
wl_list_init(wl_resource_get_link(input_ts));
}
wl_resource_set_implementation(input_ts,
&input_timestamps_interface,
touch_resource,
unbind_resource);
}
static const struct zwp_input_timestamps_manager_v1_interface

52
tests/touch-test.c
View File

@ -27,6 +27,7 @@
#include <time.h>
#include "input-timestamps-helper.h"
#include "shared/timespec-util.h"
#include "weston-test-client-helper.h"
#include "wayland-server-protocol.h"
@ -34,6 +35,7 @@
static const struct timespec t1 = { .tv_sec = 1, .tv_nsec = 1000001 };
static const struct timespec t2 = { .tv_sec = 2, .tv_nsec = 2000001 };
static const struct timespec t3 = { .tv_sec = 3, .tv_nsec = 3000001 };
static const struct timespec t_other = { .tv_sec = 123, .tv_nsec = 456 };
static struct client *
create_touch_test_client(void)
@ -59,13 +61,63 @@ TEST(touch_events)
{
struct client *client = create_touch_test_client();
struct touch *touch = client->input->touch;
struct input_timestamps *input_ts =
input_timestamps_create_for_touch(client);
send_touch(client, &t1, WL_TOUCH_DOWN);
assert(touch->down_time_msec == timespec_to_msec(&t1));
assert(timespec_eq(&touch->down_time_timespec, &t1));
send_touch(client, &t2, WL_TOUCH_MOTION);
assert(touch->motion_time_msec == timespec_to_msec(&t2));
assert(timespec_eq(&touch->motion_time_timespec, &t2));
send_touch(client, &t3, WL_TOUCH_UP);
assert(touch->up_time_msec == timespec_to_msec(&t3));
assert(timespec_eq(&touch->up_time_timespec, &t3));
input_timestamps_destroy(input_ts);
}
TEST(touch_timestamps_stop_after_input_timestamps_object_is_destroyed)
{
struct client *client = create_touch_test_client();
struct touch *touch = client->input->touch;
struct input_timestamps *input_ts =
input_timestamps_create_for_touch(client);
send_touch(client, &t1, WL_TOUCH_DOWN);
assert(touch->down_time_msec == timespec_to_msec(&t1));
assert(timespec_eq(&touch->down_time_timespec, &t1));
input_timestamps_destroy(input_ts);
send_touch(client, &t2, WL_TOUCH_UP);
assert(touch->up_time_msec == timespec_to_msec(&t2));
assert(timespec_is_zero(&touch->up_time_timespec));
}
TEST(touch_timestamps_stop_after_client_releases_wl_touch)
{
struct client *client = create_touch_test_client();
struct touch *touch = client->input->touch;
struct input_timestamps *input_ts =
input_timestamps_create_for_touch(client);
send_touch(client, &t1, WL_TOUCH_DOWN);
assert(touch->down_time_msec == timespec_to_msec(&t1));
assert(timespec_eq(&touch->down_time_timespec, &t1));
wl_touch_release(client->input->touch->wl_touch);
/* Set input_timestamp to an arbitrary value (different from t1, t2
* and 0) and check that it is not changed by sending the event.
* This is preferred over just checking for 0, since 0 is used
* internally for resetting the timestamp after handling an input
* event and checking for it here may lead to false negatives. */
touch->input_timestamp = t_other;
send_touch(client, &t2, WL_TOUCH_UP);
assert(timespec_eq(&touch->input_timestamp, &t_other));
input_timestamps_destroy(input_ts);
}