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Handle touch on headerbar (#1550)

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...using cursor emulate events.
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Simon Long 2024-03-05 20:41:17 +00:00 • committed by GitHub
parent 334cd09106
commit 3ebc07f7aa
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1 changed files with 54 additions and 23 deletions
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77
src/input/touch.c
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@ -1,17 +1,22 @@
// SPDX-License-Identifier: GPL-2.0-only
#include <wayland-util.h>
#include <wlr/types/wlr_touch.h>
#include <linux/input-event-codes.h>
#include "common/mem.h"
#include "common/scene-helpers.h"
#include "idle.h"
#include "input/touch.h"
#include "labwc.h"
#include "config/mousebind.h"
#include "action.h"
#include "view.h"
/* Holds layout -> surface offsets to report motion events in relative coords */
struct touch_point {
int32_t touch_id;
uint32_t x_offset;
uint32_t y_offset;
struct wlr_surface *surface;
struct wl_list link; /* seat.touch_points */
};
@ -47,20 +52,26 @@ touch_motion(struct wl_listener *listener, void *data)
struct wlr_touch_motion_event *event = data;
idle_manager_notify_activity(seat->seat);
/* Convert coordinates: first [0, 1] => layout, then apply offsets */
double lx, ly;
wlr_cursor_absolute_to_layout_coords(seat->cursor, &event->touch->base,
event->x, event->y, &lx, &ly);
/* Find existing touch point to determine initial offsets to subtract */
struct touch_point *touch_point;
wl_list_for_each(touch_point, &seat->touch_points, link) {
if (touch_point->touch_id == event->touch_id) {
double sx = lx - touch_point->x_offset;
double sy = ly - touch_point->y_offset;
if (touch_point->surface) {
/* Convert coordinates: first [0, 1] => layout */
double lx, ly;
wlr_cursor_absolute_to_layout_coords(seat->cursor,
&event->touch->base, event->x, event->y, &lx, &ly);
wlr_seat_touch_notify_motion(seat->seat, event->time_msec,
event->touch_id, sx, sy);
/* Apply offsets to get surface coords before reporting event */
double sx = lx - touch_point->x_offset;
double sy = ly - touch_point->y_offset;
wlr_seat_touch_notify_motion(seat->seat, event->time_msec,
event->touch_id, sx, sy);
} else {
cursor_emulate_move_absolute(seat, &event->touch->base,
event->x, event->y, event->time_msec);
}
return;
}
}
@ -81,28 +92,43 @@ touch_down(struct wl_listener *listener, void *data)
struct wlr_touch_down_event *event = data;
/* Compute layout => surface offset and save for this touch point */
double x_offset, y_offset;
struct wlr_surface *surface = touch_get_coords(seat, event->touch,
event->x, event->y, &x_offset, &y_offset);
struct touch_point *touch_point = znew(*touch_point);
double x_offset, y_offset;
touch_point->surface = touch_get_coords(seat, event->touch,
event->x, event->y, &x_offset, &y_offset);
touch_point->touch_id = event->touch_id;
touch_point->x_offset = x_offset;
touch_point->y_offset = y_offset;
wl_list_insert(&seat->touch_points, &touch_point->link);
double lx, ly;
wlr_cursor_absolute_to_layout_coords(seat->cursor, &event->touch->base,
event->x, event->y, &lx, &ly);
if (touch_point->surface) {
/* Convert coordinates: first [0, 1] => layout */
double lx, ly;
wlr_cursor_absolute_to_layout_coords(seat->cursor,
&event->touch->base, event->x, event->y, &lx, &ly);
/* Apply offsets to get surface coords before reporting event */
double sx = lx - x_offset;
double sy = ly - y_offset;
/* Apply offsets to get surface coords before reporting event */
double sx = lx - x_offset;
double sy = ly - y_offset;
if (surface) {
wlr_seat_touch_notify_down(seat->seat, surface,
struct view *view = view_from_wlr_surface(touch_point->surface);
struct mousebind *mousebind;
wl_list_for_each(mousebind, &rc.mousebinds, link) {
if (mousebind->mouse_event == MOUSE_ACTION_PRESS
&& mousebind->button == BTN_LEFT
&& mousebind->context == LAB_SSD_CLIENT) {
actions_run(view, seat->server, &mousebind->actions, 0);
}
}
wlr_seat_touch_notify_down(seat->seat, touch_point->surface,
event->time_msec, event->touch_id, sx, sy);
} else {
cursor_emulate_move_absolute(seat, &event->touch->base,
event->x, event->y, event->time_msec);
cursor_emulate_button(seat, BTN_LEFT, WLR_BUTTON_PRESSED,
event->time_msec);
}
}
@ -116,13 +142,18 @@ touch_up(struct wl_listener *listener, void *data)
struct touch_point *touch_point, *tmp;
wl_list_for_each_safe(touch_point, tmp, &seat->touch_points, link) {
if (touch_point->touch_id == event->touch_id) {
if (touch_point->surface) {
wlr_seat_touch_notify_up(seat->seat, event->time_msec,
event->touch_id);
} else {
cursor_emulate_button(seat, BTN_LEFT, WLR_BUTTON_RELEASED,
event->time_msec);
}
wl_list_remove(&touch_point->link);
zfree(touch_point);
break;
}
}
wlr_seat_touch_notify_up(seat->seat, event->time_msec, event->touch_id);
}
void