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https://github.com/labwc/labwc.git
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94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <wlr/types/wlr_touch.h>
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#include "idle.h"
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#include "labwc.h"
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#include "common/scene-helpers.h"
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static struct wlr_surface*
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touch_get_coords(struct seat *seat, struct wlr_touch *touch, double x, double y,
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double *sx, double *sy)
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{
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/* Convert coordinates: first [0, 1] => layout, then layout => surface */
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double lx, ly;
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wlr_cursor_absolute_to_layout_coords(seat->cursor, &touch->base,
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x, y, &lx, &ly);
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struct wlr_scene_node *node =
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wlr_scene_node_at(&seat->server->scene->tree.node, lx, ly, sx, sy);
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/* Find the surface and return it if it accepts touch events. */
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struct wlr_surface *surface = lab_wlr_surface_from_node(node);
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if (surface && !wlr_surface_accepts_touch(seat->seat, surface)) {
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surface = NULL;
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}
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return surface;
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}
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static void
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touch_motion(struct wl_listener *listener, void *data)
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{
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struct seat *seat = wl_container_of(listener, seat, touch_motion);
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struct wlr_touch_motion_event *event = data;
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idle_manager_notify_activity(seat->seat);
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double sx, sy;
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if (touch_get_coords(seat, event->touch, event->x, event->y, &sx, &sy)) {
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wlr_seat_touch_notify_motion(seat->seat, event->time_msec,
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event->touch_id, sx, sy);
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}
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}
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static void
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touch_frame(struct wl_listener *listener, void *data)
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{
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struct seat *seat = wl_container_of(listener, seat, touch_frame);
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wlr_seat_touch_notify_frame(seat->seat);
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}
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static void
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touch_down(struct wl_listener *listener, void *data)
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{
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struct seat *seat = wl_container_of(listener, seat, touch_down);
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struct wlr_touch_down_event *event = data;
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double sx, sy;
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struct wlr_surface *surface = touch_get_coords(seat, event->touch,
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event->x, event->y, &sx, &sy);
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if (surface) {
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wlr_seat_touch_notify_down(seat->seat, surface,
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event->time_msec, event->touch_id, sx, sy);
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}
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}
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static void
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touch_up(struct wl_listener *listener, void *data)
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{
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struct seat *seat = wl_container_of(listener, seat, touch_up);
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struct wlr_touch_up_event *event = data;
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wlr_seat_touch_notify_up(seat->seat, event->time_msec, event->touch_id);
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}
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void
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touch_init(struct seat *seat)
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{
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seat->touch_down.notify = touch_down;
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wl_signal_add(&seat->cursor->events.touch_down, &seat->touch_down);
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seat->touch_up.notify = touch_up;
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wl_signal_add(&seat->cursor->events.touch_up, &seat->touch_up);
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seat->touch_motion.notify = touch_motion;
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wl_signal_add(&seat->cursor->events.touch_motion, &seat->touch_motion);
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seat->touch_frame.notify = touch_frame;
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wl_signal_add(&seat->cursor->events.touch_frame, &seat->touch_frame);
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}
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void
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touch_finish(struct seat *seat)
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{
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wl_list_remove(&seat->touch_down.link);
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wl_list_remove(&seat->touch_up.link);
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wl_list_remove(&seat->touch_motion.link);
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wl_list_remove(&seat->touch_frame.link);
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}
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