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input/cursor: pass gesture events to clients 

Some wayland clients (mostly GTK3 apps) like eog or evince support
gestures like pinch-to-zoom. These gestures are given to clients
via the pointer_gestures_v1 protocol. This is already supported in
wlroots, so we just need to hook up the events here in sway.

Fixes #4724
This commit is contained in:
Benjamin Cheng 2019-12-07 11:21:20 -05:00 committed by Drew DeVault
parent 1cad862458
commit 9ef026e804
2 changed files with 77 additions and 0 deletions
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9
include/sway/input/cursor.h
View File

@ -3,6 +3,7 @@
#include <stdbool.h>
#include <stdint.h>
#include <wlr/types/wlr_pointer_constraints_v1.h>
#include <wlr/types/wlr_pointer_gestures_v1.h>
#include <wlr/types/wlr_surface.h>
#include "sway/input/seat.h"
@ -32,6 +33,14 @@ struct sway_cursor {
struct wlr_pointer_constraint_v1 *active_constraint;
pixman_region32_t confine; // invalid if active_constraint == NULL
struct wlr_pointer_gestures_v1 *pointer_gestures;
struct wl_listener pinch_begin;
struct wl_listener pinch_update;
struct wl_listener pinch_end;
struct wl_listener swipe_begin;
struct wl_listener swipe_update;
struct wl_listener swipe_end;
struct wl_listener motion;
struct wl_listener motion_absolute;
struct wl_listener button;

68
sway/input/cursor.c
View File

@ -735,6 +735,60 @@ static void handle_request_set_cursor(struct wl_listener *listener,
event->hotspot_y, focused_client);
}
static void handle_pointer_pinch_begin(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(
listener, cursor, pinch_begin);
struct wlr_event_pointer_pinch_begin *event = data;
wlr_pointer_gestures_v1_send_pinch_begin(
cursor->pointer_gestures, cursor->seat->wlr_seat,
event->time_msec, event->fingers);
}
static void handle_pointer_pinch_update(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(
listener, cursor, pinch_update);
struct wlr_event_pointer_pinch_update *event = data;
wlr_pointer_gestures_v1_send_pinch_update(
cursor->pointer_gestures, cursor->seat->wlr_seat,
event->time_msec, event->dx, event->dy,
event->scale, event->rotation);
}
static void handle_pointer_pinch_end(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(
listener, cursor, pinch_end);
struct wlr_event_pointer_pinch_end *event = data;
wlr_pointer_gestures_v1_send_pinch_end(
cursor->pointer_gestures, cursor->seat->wlr_seat,
event->time_msec, event->cancelled);
}
static void handle_pointer_swipe_begin(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(
listener, cursor, swipe_begin);
struct wlr_event_pointer_swipe_begin *event = data;
wlr_pointer_gestures_v1_send_swipe_begin(
cursor->pointer_gestures, cursor->seat->wlr_seat,
event->time_msec, event->fingers);
}
static void handle_pointer_swipe_update(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(
listener, cursor, swipe_update);
struct wlr_event_pointer_swipe_update *event = data;
wlr_pointer_gestures_v1_send_swipe_update(
cursor->pointer_gestures, cursor->seat->wlr_seat,
event->time_msec, event->dx, event->dy);
}
static void handle_pointer_swipe_end(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(
listener, cursor, swipe_end);
struct wlr_event_pointer_swipe_end *event = data;
wlr_pointer_gestures_v1_send_swipe_end(
cursor->pointer_gestures, cursor->seat->wlr_seat,
event->time_msec, event->cancelled);
}
void cursor_set_image(struct sway_cursor *cursor, const char *image,
struct wl_client *client) {
if (!(cursor->seat->wlr_seat->capabilities & WL_SEAT_CAPABILITY_POINTER)) {
@ -825,6 +879,20 @@ struct sway_cursor *sway_cursor_create(struct sway_seat *seat) {
cursor->hide_source = wl_event_loop_add_timer(server.wl_event_loop,
hide_notify, cursor);
cursor->pointer_gestures = wlr_pointer_gestures_v1_create(server.wl_display);
cursor->pinch_begin.notify = handle_pointer_pinch_begin;
wl_signal_add(&wlr_cursor->events.pinch_begin, &cursor->pinch_begin);
cursor->pinch_update.notify = handle_pointer_pinch_update;
wl_signal_add(&wlr_cursor->events.pinch_update, &cursor->pinch_update);
cursor->pinch_end.notify = handle_pointer_pinch_end;
wl_signal_add(&wlr_cursor->events.pinch_end, &cursor->pinch_end);
cursor->swipe_begin.notify = handle_pointer_swipe_begin;
wl_signal_add(&wlr_cursor->events.swipe_begin, &cursor->swipe_begin);
cursor->swipe_update.notify = handle_pointer_swipe_update;
wl_signal_add(&wlr_cursor->events.swipe_update, &cursor->swipe_update);
cursor->swipe_end.notify = handle_pointer_swipe_end;
wl_signal_add(&wlr_cursor->events.swipe_end, &cursor->swipe_end);
// input events
wl_signal_add(&wlr_cursor->events.motion, &cursor->motion);
cursor->motion.notify = handle_cursor_motion_relative;