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wayland_common: handle scroll accumulation for each seat 

Since it's needed to determine whether an axis event has axis_value120,
do this per seat to avoid interference between seats.
This commit is contained in:
nanahi 2024-02-13 01:05:53 -05:00 committed by Dudemanguy
parent 04bc6a4a43
commit a6ae2e7e60
2 changed files with 20 additions and 22 deletions
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37
video/out/wayland_common.c
View File

@ -203,6 +203,11 @@ struct vo_wayland_seat {
uint32_t keyboard_code;
int mpkey;
int mpmod;
double axis_value_vertical;
int32_t axis_value120_vertical;
double axis_value_horizontal;
int32_t axis_value120_horizontal;
bool axis_value120_scroll;
struct wl_list link;
};
@ -319,13 +324,12 @@ static void pointer_handle_axis(void *data, struct wl_pointer *wl_pointer,
uint32_t time, uint32_t axis, wl_fixed_t value)
{
struct vo_wayland_seat *s = data;
struct vo_wayland_state *wl = s->wl;
switch (axis) {
case WL_POINTER_AXIS_VERTICAL_SCROLL:
wl->axis_value_vertical += wl_fixed_to_double(value);
s->axis_value_vertical += wl_fixed_to_double(value);
break;
case WL_POINTER_AXIS_HORIZONTAL_SCROLL:
wl->axis_value_horizontal += wl_fixed_to_double(value);
s->axis_value_horizontal += wl_fixed_to_double(value);
break;
}
}
@ -335,18 +339,18 @@ static void pointer_handle_frame(void *data, struct wl_pointer *wl_pointer)
struct vo_wayland_seat *s = data;
struct vo_wayland_state *wl = s->wl;
double value_vertical, value_horizontal;
if (wl->axis_value120_scroll) {
if (s->axis_value120_scroll) {
// Prefer axis_value120 if supported and the axis event is from mouse wheel.
value_vertical = wl->axis_value120_vertical / 120.0;
value_horizontal = wl->axis_value120_horizontal / 120.0;
value_vertical = s->axis_value120_vertical / 120.0;
value_horizontal = s->axis_value120_horizontal / 120.0;
} else {
// The axis value is specified in logical coordinates, but the exact value emitted
// by one mouse wheel click is unspecified. In practice, most compositors use either
// 10 (GNOME, Weston) or 15 (wlroots, same as libinput) as the value.
// Divide the value by 10 and clamp it between -1 and 1 so that mouse wheel clicks
// work as intended on all compositors while still allowing high resolution trackpads.
value_vertical = MPCLAMP(wl->axis_value_vertical / 10.0, -1, 1);
value_horizontal = MPCLAMP(wl->axis_value_horizontal / 10.0, -1, 1);
value_vertical = MPCLAMP(s->axis_value_vertical / 10.0, -1, 1);
value_horizontal = MPCLAMP(s->axis_value_horizontal / 10.0, -1, 1);
}
if (value_vertical > 0)
@ -358,11 +362,11 @@ static void pointer_handle_frame(void *data, struct wl_pointer *wl_pointer)
if (value_horizontal < 0)
mp_input_put_wheel(wl->vo->input_ctx, MP_WHEEL_LEFT | s->mpmod, -value_horizontal);
wl->axis_value120_scroll = false;
wl->axis_value_vertical = 0;
wl->axis_value_horizontal = 0;
wl->axis_value120_vertical = 0;
wl->axis_value120_horizontal = 0;
s->axis_value120_scroll = false;
s->axis_value_vertical = 0;
s->axis_value_horizontal = 0;
s->axis_value120_vertical = 0;
s->axis_value120_horizontal = 0;
}
static void pointer_handle_axis_source(void *data, struct wl_pointer *wl_pointer,
@ -385,14 +389,13 @@ static void pointer_handle_axis_value120(void *data, struct wl_pointer *wl_point
uint32_t axis, int32_t value120)
{
struct vo_wayland_seat *s = data;
struct vo_wayland_state *wl = s->wl;
wl->axis_value120_scroll = true;
s->axis_value120_scroll = true;
switch (axis) {
case WL_POINTER_AXIS_VERTICAL_SCROLL:
wl->axis_value120_vertical += value120;
s->axis_value120_vertical += value120;
break;
case WL_POINTER_AXIS_HORIZONTAL_SCROLL:
wl->axis_value120_horizontal += value120;
s->axis_value120_horizontal += value120;
break;
}
}

5
video/out/wayland_common.h
View File

@ -144,11 +144,6 @@ struct vo_wayland_state {
/* Input */
struct wl_list seat_list;
struct xkb_context *xkb_context;
double axis_value_vertical;
int32_t axis_value120_vertical;
double axis_value_horizontal;
int32_t axis_value120_horizontal;
bool axis_value120_scroll;
/* DND */
struct wl_data_device_manager *dnd_devman;