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Add zwp-tablet-unstable-v2 client support

Browse source 
This allows wlroots based compositors to properly use graphic tablets
with the wayland backend.
This should be a decent quality of life improvement when working on
tablet related features.
This commit is contained in:
Markus Ongyerth 2019-05-10 08:36:19 +02:00 committed by Simon Ser
parent 57babd2e13
commit 2285e36b0c
6 changed files with 960 additions and 1 deletions
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1
backend/meson.build
View file

@ -28,6 +28,7 @@ backend_files = files(
'wayland/backend.c',
'wayland/output.c',
'wayland/wl_seat.c',
'wayland/tablet_v2.c',
)
backend_deps = [

13
backend/wayland/backend.c
View file

@ -19,6 +19,11 @@
#include "xdg-decoration-unstable-v1-client-protocol.h"
#include "pointer-gestures-unstable-v1-client-protocol.h"
#include "xdg-shell-client-protocol.h"
#include "tablet-unstable-v2-client-protocol.h"
struct wlr_wl_tablet_seat *wlr_wl_add_tablet_seat(
struct zwp_tablet_manager_v2 *manager,
struct wl_seat *seat, struct wlr_wl_backend *backend);
struct wlr_wl_backend *get_wl_backend_from_backend(struct wlr_backend *backend) {
assert(wlr_backend_is_wl(backend));
@ -81,6 +86,9 @@ static void registry_global(void *data, struct wl_registry *registry,
} else if (strcmp(iface, zwp_pointer_gestures_v1_interface.name) == 0) {
wl->zwp_pointer_gestures_v1 = wl_registry_bind(registry, name,
&zwp_pointer_gestures_v1_interface, 1);
} else if (strcmp(iface, zwp_tablet_manager_v2_interface.name) == 0) {
wl->tablet_manager = wl_registry_bind(registry, name,
&zwp_tablet_manager_v2_interface, 1);
}
}
@ -109,6 +117,11 @@ static bool backend_start(struct wlr_backend *backend) {
create_wl_keyboard(wl->keyboard, wl);
}
if (wl->tablet_manager && wl->seat) {
wlr_wl_add_tablet_seat(wl->tablet_manager,
wl->seat, wl);
}
for (size_t i = 0; i < wl->requested_outputs; ++i) {
wlr_wl_output_create(&wl->backend);
}

941
backend/wayland/tablet_v2.c Normal file
View file

@ -0,0 +1,941 @@
#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#endif
#include <wayland-util.h>
#include <assert.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <wlr/interfaces/wlr_tablet_pad.h>
#include <wlr/interfaces/wlr_tablet_tool.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/interfaces/wlr_input_device.h>
#include "util/signal.h"
#include "wlr/util/log.h"
#include "tablet-unstable-v2-client-protocol.h"
#include <backend/wayland.h>
struct wlr_wl_tablet_seat {
struct zwp_tablet_seat_v2 *tablet_seat;
struct wl_list tablets;
struct wl_list tools;
// struct wl_list pads; // wlr_wl_tablet_pad::link
};
struct wlr_wl_tablet_tool {
/* static */
struct zwp_tablet_tool_v2 *tool;
struct wlr_tablet_tool wlr_tool;
/* semi-static */
struct wlr_wl_input_device *tablet;
double pre_x, pre_y;
/* per frame */
double x, y;
double pressure;
double distance;
double tilt_x, tilt_y;
double rotation;
double slider;
double wheel_delta;
bool is_in;
bool is_out;
bool is_up;
bool is_down;
};
struct wlr_wl_tablet_pad_ring {
struct wl_list link; // wlr_wl_tablet_pad_group::rings
/* static */
struct zwp_tablet_pad_ring_v2 *ring;
struct wlr_wl_tablet_pad_group *group;
size_t index;
/* per frame */
enum wlr_tablet_pad_ring_source source;
double angle;
bool stopped;
};
struct wlr_wl_tablet_pad_strip {
struct wl_list link; // wlr_wl_tablet_pad_group::strips
struct zwp_tablet_pad_strip_v2 *strip;
struct wlr_wl_tablet_pad_group *group;
size_t index;
enum wlr_tablet_pad_strip_source source;
double position;
bool stopped;
};
struct wlr_wl_tablet_pad_group {
struct zwp_tablet_pad_group_v2 *pad_group;
struct wlr_tablet_pad *pad;
unsigned int mode;
struct wlr_tablet_pad_group group;
struct wl_list rings; // wlr_wl_tablet_pad_ring::link
struct wl_list strips; // wlr_wl_tablet_pad_strips::link
};
static uint32_t get_current_time_msec(void) {
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
return now.tv_nsec / (1000 * 1000) + now.tv_sec * 1000;
}
struct wlr_wl_tablet_seat *wlr_wl_add_tablet_seat(
struct zwp_tablet_manager_v2 *manager,
struct wl_seat *seat, struct wlr_wl_backend *backend);
static void handle_tablet_pad_ring_source(void *data,
struct zwp_tablet_pad_ring_v2 *zwp_tablet_pad_ring_v2,
uint32_t source) {
struct wlr_wl_tablet_pad_ring *ring = data;
ring->source = source;
}
static void handle_tablet_pad_ring_angle(void *data,
struct zwp_tablet_pad_ring_v2 *zwp_tablet_pad_ring_v2,
wl_fixed_t degrees) {
struct wlr_wl_tablet_pad_ring *ring = data;
ring->angle = wl_fixed_to_double(degrees);
}
static void handle_tablet_pad_ring_stop(void *data,
struct zwp_tablet_pad_ring_v2 *zwp_tablet_pad_ring_v2) {
struct wlr_wl_tablet_pad_ring *ring = data;
ring->stopped = true;
}
static void handle_tablet_pad_ring_frame(void *data,
struct zwp_tablet_pad_ring_v2 *zwp_tablet_pad_ring_v2,
uint32_t time) {
struct wlr_wl_tablet_pad_ring *ring = data;
struct wlr_event_tablet_pad_ring evt = {
.time_msec = time,
.source = ring->source,
.ring = ring->index,
.position = ring->angle,
.mode = ring->group->mode,
};
if (ring->angle >= 0) {
wlr_signal_emit_safe(&ring->group->pad->events.ring, &evt);
}
if (ring->stopped) {
evt.position = -1;
wlr_signal_emit_safe(&ring->group->pad->events.ring, &evt);
}
ring->angle = -1;
ring->stopped = false;
ring->source = 0;
}
static const struct zwp_tablet_pad_ring_v2_listener tablet_pad_ring_listener = {
.source = handle_tablet_pad_ring_source,
.angle = handle_tablet_pad_ring_angle,
.stop = handle_tablet_pad_ring_stop,
.frame = handle_tablet_pad_ring_frame,
};
static void handle_tablet_pad_strip_source(void *data,
struct zwp_tablet_pad_strip_v2 *zwp_tablet_pad_strip_v2,
uint32_t source) {
struct wlr_wl_tablet_pad_strip *strip = data;
strip->source = source;
}
static void handle_tablet_pad_strip_position(void *data,
struct zwp_tablet_pad_strip_v2 *zwp_tablet_pad_strip_v2,
uint32_t position) {
struct wlr_wl_tablet_pad_strip *strip = data;
strip->position = (double) position / 65536.0;
}
static void handle_tablet_pad_strip_stop(void *data,
struct zwp_tablet_pad_strip_v2 *zwp_tablet_pad_strip_v2) {
struct wlr_wl_tablet_pad_strip *strip = data;
strip->stopped = true;
}
static void handle_tablet_pad_strip_frame(void *data,
struct zwp_tablet_pad_strip_v2 *zwp_tablet_pad_strip_v2,
uint32_t time) {
struct wlr_wl_tablet_pad_strip *strip = data;
struct wlr_event_tablet_pad_strip evt = {
.time_msec = time,
.source = strip->source,
.strip = strip->index,
.position = strip->position,
.mode = strip->group->mode,
};
if (strip->position >= 0) {
wlr_signal_emit_safe(&strip->group->pad->events.strip, &evt);
}
if (strip->stopped) {
evt.position = -1;
wlr_signal_emit_safe(&strip->group->pad->events.strip, &evt);
}
strip->position = -1;
strip->stopped = false;
strip->source = 0;
}
static const struct zwp_tablet_pad_strip_v2_listener tablet_pad_strip_listener = {
.source = handle_tablet_pad_strip_source,
.position = handle_tablet_pad_strip_position,
.stop = handle_tablet_pad_strip_stop,
.frame = handle_tablet_pad_strip_frame,
};
static void handle_tablet_pad_group_buttons(void *data,
struct zwp_tablet_pad_group_v2 *pad_group,
struct wl_array *buttons) {
struct wlr_wl_tablet_pad_group *group = data;
group->group.buttons = calloc(1, buttons->size);
if (!group->group.buttons) {
// FIXME: Add actual error handling
return;
}
group->group.button_count = buttons->size / sizeof(int);
memcpy(group->group.buttons, buttons->data, buttons->size);
}
static void handle_tablet_pad_group_modes(void *data,
struct zwp_tablet_pad_group_v2 *pad_group, uint32_t modes) {
struct wlr_wl_tablet_pad_group *group = data;
group->group.mode_count = modes;
}
static void handle_tablet_pad_group_ring(void *data,
struct zwp_tablet_pad_group_v2 *pad_group,
struct zwp_tablet_pad_ring_v2 *ring) {
struct wlr_wl_tablet_pad_group *group = data;
struct wlr_wl_tablet_pad_ring *tablet_ring =
calloc(1, sizeof(struct wlr_wl_tablet_pad_ring));
if (!tablet_ring) {
zwp_tablet_pad_ring_v2_destroy(ring);
return;
}
tablet_ring->index = group->pad->ring_count++;
tablet_ring->group = group;
zwp_tablet_pad_ring_v2_add_listener(ring, &tablet_pad_ring_listener,
tablet_ring);
group->group.rings = realloc(group->group.rings,
++group->group.ring_count * sizeof(unsigned int));
group->group.rings[group->group.ring_count - 1] =
tablet_ring->index;
}
static void handle_tablet_pad_group_strip(void *data,
struct zwp_tablet_pad_group_v2 *pad_group,
struct zwp_tablet_pad_strip_v2 *strip) {
struct wlr_wl_tablet_pad_group *group = data;
struct wlr_wl_tablet_pad_strip *tablet_strip =
calloc(1, sizeof(struct wlr_wl_tablet_pad_strip));
if (!tablet_strip) {
zwp_tablet_pad_strip_v2_destroy(strip);
return;
}
tablet_strip->index = group->pad->strip_count++;
tablet_strip->group = group;
zwp_tablet_pad_strip_v2_add_listener(strip, &tablet_pad_strip_listener,
tablet_strip);
group->group.strips = realloc(group->group.strips,
++group->group.strip_count * sizeof(unsigned int));
group->group.strips[group->group.strip_count - 1] =
tablet_strip->index;
}
static void handle_tablet_pad_group_done(void *data,
struct zwp_tablet_pad_group_v2 *pad_group) {
/* Empty for now */
}
static void handle_tablet_pad_group_mode_switch(void *data,
struct zwp_tablet_pad_group_v2 *pad_group,
uint32_t time, uint32_t serial, uint32_t mode) {
struct wlr_wl_tablet_pad_group *group = data;
group->mode = mode;
}
/* This isn't in the listener, but keep the naming scheme around since the
* other removed functions work like this, and pad sub-resources are just a bit
* special */
static void handle_tablet_pad_group_removed(
struct wlr_wl_tablet_pad_group *group) {
/* No need to remove the ::link on strips rings as long as we do *not*
* wl_list_remove on the wl_groups ring/strip attributes here */
struct wlr_wl_tablet_pad_ring *ring, *tmp_ring;
wl_list_for_each_safe(ring, tmp_ring, &group->rings, link) {
zwp_tablet_pad_ring_v2_destroy(ring->ring);
free(ring);
}
struct wlr_wl_tablet_pad_strip *strip, *tmp_strip;
wl_list_for_each_safe(strip, tmp_strip, &group->strips, link) {
zwp_tablet_pad_strip_v2_destroy(strip->strip);
free(strip);
}
zwp_tablet_pad_group_v2_destroy(group->pad_group);
/* While I'm pretty sure we have control over this as well, it's
* outside the scope of a single function, so better be safe than
* sorry */
wl_list_remove(&group->group.link);
free(group);
}
static const struct zwp_tablet_pad_group_v2_listener tablet_pad_group_listener = {
.buttons = handle_tablet_pad_group_buttons,
.modes = handle_tablet_pad_group_modes,
.ring = handle_tablet_pad_group_ring,
.strip = handle_tablet_pad_group_strip,
.done = handle_tablet_pad_group_done,
.mode_switch = handle_tablet_pad_group_mode_switch,
};
static void handle_tablet_pad_group(void *data,
struct zwp_tablet_pad_v2 *zwp_tablet_pad,
struct zwp_tablet_pad_group_v2 *pad_group) {
struct wlr_wl_input_device *dev = data;
struct wlr_tablet_pad *pad = dev->wlr_input_device.tablet_pad;
struct wlr_wl_tablet_pad_group *group =
calloc(1, sizeof(struct wlr_wl_tablet_pad_group));
if (!group) {
zwp_tablet_pad_group_v2_destroy(pad_group);
return;
}
group->pad_group = pad_group;
group->pad = pad;
wl_list_init(&group->rings);
wl_list_init(&group->strips);
zwp_tablet_pad_group_v2_add_listener(pad_group,
&tablet_pad_group_listener, group);
wl_list_insert(&pad->groups, &group->group.link);
}
static void handle_tablet_pad_path(void *data,
struct zwp_tablet_pad_v2 *zwp_tablet_pad_v2,
const char *path) {
struct wlr_wl_input_device *dev = data;
struct wlr_tablet_pad *tablet_pad = dev->wlr_input_device.tablet_pad;
wlr_list_push(&tablet_pad->paths, strdup(path));
}
static void handle_tablet_pad_buttons(void *data,
struct zwp_tablet_pad_v2 *zwp_tablet_pad_v2,
uint32_t buttons) {
struct wlr_wl_input_device *dev = data;
struct wlr_tablet_pad *tablet_pad = dev->wlr_input_device.tablet_pad;
tablet_pad->button_count = buttons;
}
static void handle_tablet_pad_button(void *data,
struct zwp_tablet_pad_v2 *zwp_tablet_pad_v2,
uint32_t time, uint32_t button, uint32_t state) {
struct wlr_wl_input_device *dev = data;
struct wlr_tablet_pad *tablet_pad = dev->wlr_input_device.tablet_pad;
struct wlr_event_tablet_pad_button evt = {
.time_msec = time,
.button = button,
.state = state,
.mode = 0,
.group = 0,
};
wlr_signal_emit_safe(&tablet_pad->events.button, &evt);
}
static void handle_tablet_pad_done(void *data,
struct zwp_tablet_pad_v2 *zwp_tablet_pad_v2) {
struct wlr_wl_input_device *dev = data;
wlr_signal_emit_safe(&dev->backend->backend.events.new_input,
&dev->wlr_input_device);
}
static void handle_tablet_pad_enter(void *data,
struct zwp_tablet_pad_v2 *zwp_tablet_pad_v2,
uint32_t serial, struct zwp_tablet_v2 *tablet_p,
struct wl_surface *surface) {
struct wlr_wl_input_device *dev = data;
struct wlr_tablet_pad *tablet_pad = dev->wlr_input_device.tablet_pad;
struct wlr_wl_input_device *tab_dev = zwp_tablet_v2_get_user_data(tablet_p);
struct wlr_input_device *tablet = &tab_dev->wlr_input_device;
wlr_log(WLR_DEBUG, "Tablet: %p\n", tablet);
wlr_signal_emit_safe(&tablet_pad->events.attach_tablet, tablet);
}
static void handle_tablet_pad_leave(void *data,
struct zwp_tablet_pad_v2 *zwp_tablet_pad_v2,
uint32_t serial, struct wl_surface *surface) {
/* Empty. Probably staying that way, unless we want to create/destroy
* tablet on enter/leave events (ehh) */
}
static void handle_tablet_pad_removed(void *data,
struct zwp_tablet_pad_v2 *zwp_tablet_pad_v2) {
struct wlr_wl_input_device *dev = data;
struct wlr_tablet_pad *tablet_pad = dev->wlr_input_device.tablet_pad;
/* This doesn't free anything, but emits the destroy signal */
wlr_input_device_destroy(&dev->wlr_input_device);
/* This is a bit ugly, but we need to remove it from our list */
wl_list_remove(&dev->wlr_input_device.link);
struct wlr_wl_tablet_pad_group *group, *it;
wl_list_for_each_safe(group, it, &tablet_pad->groups, group.link) {
handle_tablet_pad_group_removed(group);
}
/* This frees */
wlr_tablet_pad_destroy(tablet_pad);
zwp_tablet_pad_v2_destroy(dev->resource);
free(dev);
}
static const struct zwp_tablet_pad_v2_listener tablet_pad_listener = {
.group = handle_tablet_pad_group,
.path = handle_tablet_pad_path,
.buttons = handle_tablet_pad_buttons,
.button = handle_tablet_pad_button,
.done = handle_tablet_pad_done,
.enter = handle_tablet_pad_enter,
.leave = handle_tablet_pad_leave,
.removed = handle_tablet_pad_removed,
};
static void handle_pad_added(void *data,
struct zwp_tablet_seat_v2 *zwp_tablet_seat_v2,
struct zwp_tablet_pad_v2 *id) {
wlr_log(WLR_DEBUG, "New tablet pad");
struct wlr_wl_backend *backend = data;
struct wlr_wl_input_device *dev = create_wl_input_device(
backend, WLR_INPUT_DEVICE_TABLET_PAD);
if (!dev) {
/* This leaks a couple of server-sent resource ids. iirc this
* shouldn't ever be a problem, but it isn't exactly nice
* either. */
zwp_tablet_pad_v2_destroy(id);
return;
}
dev->resource = id;
struct wlr_input_device *wlr_dev = &dev->wlr_input_device;
wlr_dev->tablet_pad = calloc(1, sizeof(*wlr_dev->tablet_pad));
if (!wlr_dev->tablet_pad) {
/* This leaks a couple of server-sent resource ids. iirc this
* shouldn't ever be a problem, but it isn't exactly nice
* either. */
free(dev);
zwp_tablet_pad_v2_destroy(id);
return;
}
wlr_tablet_pad_init(wlr_dev->tablet_pad, NULL);
zwp_tablet_pad_v2_add_listener(id, &tablet_pad_listener, dev);
}
static void handle_tablet_tool_done(void *data,
struct zwp_tablet_tool_v2 *id) {
/* empty */
}
static enum wlr_tablet_tool_type tablet_type_to_wlr_type(enum zwp_tablet_tool_v2_type type) {
switch(type) {
case ZWP_TABLET_TOOL_V2_TYPE_PEN:
return WLR_TABLET_TOOL_TYPE_PEN;
case ZWP_TABLET_TOOL_V2_TYPE_ERASER:
return WLR_TABLET_TOOL_TYPE_ERASER;
case ZWP_TABLET_TOOL_V2_TYPE_BRUSH:
return WLR_TABLET_TOOL_TYPE_BRUSH;
case ZWP_TABLET_TOOL_V2_TYPE_PENCIL:
return WLR_TABLET_TOOL_TYPE_PENCIL;
case ZWP_TABLET_TOOL_V2_TYPE_AIRBRUSH:
return WLR_TABLET_TOOL_TYPE_AIRBRUSH;
case ZWP_TABLET_TOOL_V2_TYPE_MOUSE:
return WLR_TABLET_TOOL_TYPE_MOUSE;
case ZWP_TABLET_TOOL_V2_TYPE_LENS:
return WLR_TABLET_TOOL_TYPE_LENS;
default:
break;
}
assert(false && "Unreachable");
}
static void handle_tablet_tool_type(void *data,
struct zwp_tablet_tool_v2 *id,
uint32_t tool_type) {
struct wlr_wl_tablet_tool *tool = data;
tool->wlr_tool.type = tablet_type_to_wlr_type(tool_type);
}
static void handle_tablet_tool_serial(void *data,
struct zwp_tablet_tool_v2 *id,
uint32_t high, uint32_t low) {
struct wlr_wl_tablet_tool *tool = data;
tool->wlr_tool.hardware_serial =
((uint64_t) high) << 32 | (uint64_t) low;
}
static void handle_tablet_tool_id_wacom(void *data,
struct zwp_tablet_tool_v2 *id,
uint32_t high, uint32_t low) {
struct wlr_wl_tablet_tool *tool = data;
tool->wlr_tool.hardware_wacom =
((uint64_t) high) << 32 | (uint64_t) low;
}
static void handle_tablet_tool_capability(void *data,
struct zwp_tablet_tool_v2 *id,
uint32_t capability) {
struct wlr_wl_tablet_tool *tool = data;
enum zwp_tablet_tool_v2_capability cap = capability;
switch(cap) {
case ZWP_TABLET_TOOL_V2_CAPABILITY_TILT:
tool->wlr_tool.tilt = true;
break;
case ZWP_TABLET_TOOL_V2_CAPABILITY_PRESSURE:
tool->wlr_tool.pressure = true;
break;
case ZWP_TABLET_TOOL_V2_CAPABILITY_DISTANCE:
tool->wlr_tool.distance = true;
break;
case ZWP_TABLET_TOOL_V2_CAPABILITY_ROTATION:
tool->wlr_tool.rotation = true;
break;
case ZWP_TABLET_TOOL_V2_CAPABILITY_SLIDER:
tool->wlr_tool.slider = true;
break;
case ZWP_TABLET_TOOL_V2_CAPABILITY_WHEEL:
tool->wlr_tool.wheel = true;
break;
}
}
static void handle_tablet_tool_proximity_in(void *data,
struct zwp_tablet_tool_v2 *id, uint32_t serial,
struct zwp_tablet_v2 *tablet_id,
struct wl_surface *surface) {
struct wlr_wl_tablet_tool *tool = data;
tool->is_in = true;
tool->tablet = zwp_tablet_v2_get_user_data(tablet_id);
}
static void handle_tablet_tool_proximity_out(void *data,
struct zwp_tablet_tool_v2 *id) {
struct wlr_wl_tablet_tool *tool = data;
tool->is_out = true;
}
static void handle_tablet_tool_down(void *data,
struct zwp_tablet_tool_v2 *id,
unsigned int serial) {
struct wlr_wl_tablet_tool *tool = data;
tool->is_down = true;
}
static void handle_tablet_tool_up(void *data,
struct zwp_tablet_tool_v2 *id) {
struct wlr_wl_tablet_tool *tool = data;
tool->is_up = true;
}
static void handle_tablet_tool_motion(void *data,
struct zwp_tablet_tool_v2 *id,
wl_fixed_t x, wl_fixed_t y) {
struct wlr_wl_tablet_tool *tool = data;
tool->x = wl_fixed_to_double(x);
tool->y = wl_fixed_to_double(y);
}
static void handle_tablet_tool_pressure(void *data,
struct zwp_tablet_tool_v2 *id,
uint32_t pressure) {
struct wlr_wl_tablet_tool *tool = data;
tool->pressure = (double) pressure / 65535.0;
}
static void handle_tablet_tool_distance(void *data,
struct zwp_tablet_tool_v2 *id,
uint32_t distance) {
struct wlr_wl_tablet_tool *tool = data;
tool->distance = (double) distance / 65535.0;
}
static void handle_tablet_tool_tilt(void *data,
struct zwp_tablet_tool_v2 *id,
wl_fixed_t x, wl_fixed_t y) {
struct wlr_wl_tablet_tool *tool = data;
tool->tilt_x = wl_fixed_to_double(x);
tool->tilt_y = wl_fixed_to_double(y);
}
static void handle_tablet_tool_rotation(void *data,
struct zwp_tablet_tool_v2 *id,
wl_fixed_t rotation) {
struct wlr_wl_tablet_tool *tool = data;
tool->rotation = wl_fixed_to_double(rotation);
}
static void handle_tablet_tool_slider(void *data,
struct zwp_tablet_tool_v2 *id,
int slider) {
struct wlr_wl_tablet_tool *tool = data;
tool->slider = (double) slider / 65535.0;;
}
// TODO: This looks wrong :/
static void handle_tablet_tool_wheel(void *data,
struct zwp_tablet_tool_v2 *id,
wl_fixed_t degree, int clicks) {
struct wlr_wl_tablet_tool *tool = data;
tool->wheel_delta = wl_fixed_to_double(degree);
}
static void handle_tablet_tool_button(void *data,
struct zwp_tablet_tool_v2 *id,
uint32_t serial, uint32_t button, uint32_t state) {
struct wlr_wl_tablet_tool *tool = data;
struct wlr_tablet *tablet = tool->tablet->wlr_input_device.tablet;
struct wlr_event_tablet_tool_button evt = {
.device = &tool->tablet->wlr_input_device,
.tool = &tool->wlr_tool,
.time_msec = get_current_time_msec(),
.button = button,
.state = state == ZWP_TABLET_TOOL_V2_BUTTON_STATE_RELEASED ?
WLR_BUTTON_RELEASED : WLR_BUTTON_PRESSED,
};
wlr_signal_emit_safe(&tablet->events.button, &evt);
}
static void clear_tablet_tool_values(struct wlr_wl_tablet_tool *tool) {
tool->is_out = tool->is_in = false;
tool->is_up = tool->is_down = false;
tool->x = tool->y = NAN;
tool->pressure = NAN;
tool->distance = NAN;
tool->tilt_x = tool->tilt_y = NAN;
tool->rotation = NAN;
tool->slider = NAN;
tool->wheel_delta = NAN;
}
static void handle_tablet_tool_frame(void *data,
struct zwp_tablet_tool_v2 *id,
uint32_t time) {
struct wlr_wl_tablet_tool *tool = data;
if (tool->is_out && tool->is_in) {
/* we got a tablet tool coming in and out of proximity before
* we could process it. Just ignore anything it did */
goto clear_values;
}
struct wlr_tablet *tablet = tool->tablet->wlr_input_device.tablet;
if (tool->is_in) {
struct wlr_event_tablet_tool_proximity evt = {
.device = &tool->tablet->wlr_input_device,
.tool = &tool->wlr_tool,
.time_msec = time,
.x = tool->x,
.y = tool->y,
.state = WLR_TABLET_TOOL_PROXIMITY_IN,
};
wlr_signal_emit_safe(&tablet->events.proximity, &evt);
}
{
struct wlr_event_tablet_tool_axis evt = {
.device = &tool->tablet->wlr_input_device,
.tool = &tool->wlr_tool,
.time_msec = time,
.updated_axes = 0,
};
if (!isnan(tool->x) && !tool->is_in) {
evt.updated_axes |= WLR_TABLET_TOOL_AXIS_X;
evt.x = tool->x;
}
if (!isnan(tool->y) && !tool->is_in) {
evt.updated_axes |= WLR_TABLET_TOOL_AXIS_Y;
evt.y = tool->y;
}
if (!isnan(tool->pressure)) {
evt.updated_axes |= WLR_TABLET_TOOL_AXIS_PRESSURE;
evt.pressure = tool->pressure;
}
if (!isnan(tool->distance)) {
evt.updated_axes |= WLR_TABLET_TOOL_AXIS_DISTANCE;
evt.distance = tool->distance;
}
if (!isnan(tool->tilt_x)) {
evt.updated_axes |= WLR_TABLET_TOOL_AXIS_TILT_X;
evt.tilt_x = tool->tilt_x;
}
if (!isnan(tool->tilt_y)) {
evt.updated_axes |= WLR_TABLET_TOOL_AXIS_TILT_Y;
evt.tilt_y = tool->tilt_y;
}
if (!isnan(tool->rotation)) {
evt.updated_axes |= WLR_TABLET_TOOL_AXIS_ROTATION;
evt.rotation = tool->rotation;
}
if (!isnan(tool->slider)) {
evt.updated_axes |= WLR_TABLET_TOOL_AXIS_SLIDER;
evt.slider = tool->slider;
}
if (!isnan(tool->wheel_delta)) {
evt.updated_axes |= WLR_TABLET_TOOL_AXIS_WHEEL;
evt.wheel_delta = tool->wheel_delta;
}
if (evt.updated_axes) {
wlr_signal_emit_safe(&tablet->events.proximity, &evt);
}
}
/* This will always send down then up if we got both.
* Maybe we should send them right away, in case we get up then both in
* series?
* Downside: Here we have the frame time, if we sent right away, we
* need to generate the time */
if (tool->is_down) {
struct wlr_event_tablet_tool_tip evt = {
.device = &tool->tablet->wlr_input_device,
.tool = &tool->wlr_tool,
.time_msec = time,
.x = tool->x,
.y = tool->y,
.state = WLR_TABLET_TOOL_TIP_DOWN,
};
wlr_signal_emit_safe(&tablet->events.tip, &evt);
}
if (tool->is_up) {
struct wlr_event_tablet_tool_tip evt = {
.device = &tool->tablet->wlr_input_device,
.tool = &tool->wlr_tool,
.time_msec = time,
.x = tool->x,
.y = tool->y,
.state = WLR_TABLET_TOOL_TIP_UP,
};
wlr_signal_emit_safe(&tablet->events.tip, &evt);
}
if (tool->is_out) {
struct wlr_event_tablet_tool_proximity evt = {
.device = &tool->tablet->wlr_input_device,
.tool = &tool->wlr_tool,
.time_msec = time,
.x = tool->x,
.y = tool->y,
.state = WLR_TABLET_TOOL_PROXIMITY_OUT,
};
wlr_signal_emit_safe(&tablet->events.proximity, &evt);
}
clear_values:
clear_tablet_tool_values(tool);
}
static void handle_tablet_tool_removed(void *data,
struct zwp_tablet_tool_v2 *id) {
struct wlr_wl_tablet_tool *tool = data;
zwp_tablet_tool_v2_destroy(tool->tool);
wlr_signal_emit_safe(&tool->wlr_tool.events.destroy, &tool->wlr_tool);
free(tool);
}
static const struct zwp_tablet_tool_v2_listener tablet_tool_listener = {
.removed = handle_tablet_tool_removed,
.done = handle_tablet_tool_done,
.type = handle_tablet_tool_type,
.hardware_serial = handle_tablet_tool_serial,
.hardware_id_wacom = handle_tablet_tool_id_wacom,
.capability = handle_tablet_tool_capability,
.proximity_in = handle_tablet_tool_proximity_in,
.proximity_out = handle_tablet_tool_proximity_out,
.down = handle_tablet_tool_down,
.up = handle_tablet_tool_up,
.motion = handle_tablet_tool_motion,
.pressure = handle_tablet_tool_pressure,
.distance = handle_tablet_tool_distance,
.tilt = handle_tablet_tool_tilt,
.rotation = handle_tablet_tool_rotation,
.slider = handle_tablet_tool_slider,
.wheel = handle_tablet_tool_wheel,
.button = handle_tablet_tool_button,
.frame = handle_tablet_tool_frame,
};
static void handle_tool_added(void *data,
struct zwp_tablet_seat_v2 *zwp_tablet_seat_v2,
struct zwp_tablet_tool_v2 *id) {
wlr_log(WLR_DEBUG, "New tablet tool");
struct wlr_wl_tablet_tool *tool = calloc(1, sizeof(*tool));
if (!tool) {
zwp_tablet_tool_v2_destroy(id);
return;
}
tool->tool = id;
clear_tablet_tool_values(tool);
wl_signal_init(&tool->wlr_tool.events.destroy);
zwp_tablet_tool_v2_add_listener(id, &tablet_tool_listener, tool);
}
static void handle_tablet_name(void *data, struct zwp_tablet_v2 *zwp_tablet_v2,
const char *name) {
struct wlr_wl_input_device *dev = data;
struct wlr_tablet *tablet = dev->wlr_input_device.tablet;
tablet->name = strdup(name);
}
static void handle_tablet_id(void *data, struct zwp_tablet_v2 *zwp_tablet_v2,
uint32_t vid, uint32_t pid) {
struct wlr_wl_input_device *dev = data;
dev->wlr_input_device.vendor = vid;
dev->wlr_input_device.product = pid;
}
static void handle_tablet_path(void *data, struct zwp_tablet_v2 *zwp_tablet_v2,
const char *path) {
struct wlr_wl_input_device *dev = data;
struct wlr_tablet *tablet = dev->wlr_input_device.tablet;
wlr_list_push(&tablet->paths, strdup(path));
}
static void handle_tablet_done(void *data, struct zwp_tablet_v2 *zwp_tablet_v2) {
struct wlr_wl_input_device *dev = data;
wlr_signal_emit_safe(&dev->backend->backend.events.new_input,
&dev->wlr_input_device);
}
static void handle_tablet_removed(void *data,
struct zwp_tablet_v2 *zwp_tablet_v2) {
struct wlr_wl_input_device *dev = data;
/* This doesn't free anything, but emits the destroy signal */
wlr_input_device_destroy(&dev->wlr_input_device);
/* This is a bit ugly, but we need to remove it from our list */
wl_list_remove(&dev->wlr_input_device.link);
zwp_tablet_v2_destroy(dev->resource);
free(dev);
}
static const struct zwp_tablet_v2_listener tablet_listener = {
.name = handle_tablet_name,
.id = handle_tablet_id,
.path = handle_tablet_path,
.done = handle_tablet_done,
.removed = handle_tablet_removed,
};
static void handle_tab_added(void *data,
struct zwp_tablet_seat_v2 *zwp_tablet_seat_v2,
struct zwp_tablet_v2 *id) {
wlr_log(WLR_DEBUG, "New tablet");
struct wlr_wl_backend *backend = data;
struct wlr_wl_input_device *dev = create_wl_input_device(
backend, WLR_INPUT_DEVICE_TABLET_TOOL);
dev->resource = id;
if (!dev) {
zwp_tablet_v2_destroy(id);
return;
}
struct wlr_input_device *wlr_dev = &dev->wlr_input_device;
wlr_dev->tablet = calloc(1, sizeof(*wlr_dev->tablet));
if (!wlr_dev->tablet) {
zwp_tablet_v2_destroy(id);
return;
}
zwp_tablet_v2_set_user_data(id, wlr_dev->tablet);
wlr_tablet_init(wlr_dev->tablet, NULL);
zwp_tablet_v2_add_listener(id, &tablet_listener, dev);
}
static const struct zwp_tablet_seat_v2_listener tablet_seat_listener = {
.tablet_added = handle_tab_added,
.tool_added = handle_tool_added,
.pad_added = handle_pad_added,
};
struct wlr_wl_tablet_seat *wlr_wl_add_tablet_seat(
struct zwp_tablet_manager_v2 *manager,
struct wl_seat *seat, struct wlr_wl_backend *backend) {
struct wlr_wl_tablet_seat *ret =
calloc(1, sizeof(struct wlr_wl_tablet_seat));
if (!(ret->tablet_seat =
zwp_tablet_manager_v2_get_tablet_seat(manager, seat))) {
free(ret);
return NULL;
}
zwp_tablet_seat_v2_add_listener(ret->tablet_seat,
&tablet_seat_listener, backend);
wl_list_init(&ret->tablets);
wl_list_init(&ret->tools);
//wl_list_init(&ret->pads);
return ret;
}

2
backend/wayland/wl_seat.c
View file

@ -303,7 +303,7 @@ bool wlr_input_device_is_wl(struct wlr_input_device *dev) {
return dev->impl == &input_device_impl;
}
static struct wlr_wl_input_device *create_wl_input_device(
struct wlr_wl_input_device *create_wl_input_device(
struct wlr_wl_backend *backend, enum wlr_input_device_type type) {
struct wlr_wl_input_device *dev =
calloc(1, sizeof(struct wlr_wl_input_device));

3
include/backend/wayland.h
View file

@ -38,6 +38,7 @@ struct wlr_wl_backend {
struct wl_pointer *pointer;
struct wl_keyboard *keyboard;
struct wlr_wl_pointer *current_pointer;
struct zwp_tablet_manager_v2 *tablet_manager;
char *seat_name;
};
@ -92,6 +93,8 @@ void update_wl_output_cursor(struct wlr_wl_output *output);
struct wlr_wl_pointer *pointer_get_wl(struct wlr_pointer *wlr_pointer);
void create_wl_pointer(struct wl_pointer *wl_pointer, struct wlr_wl_output *output);
void create_wl_keyboard(struct wl_keyboard *wl_keyboard, struct wlr_wl_backend *wl);
struct wlr_wl_input_device *create_wl_input_device(
struct wlr_wl_backend *backend, enum wlr_input_device_type type);
extern const struct wl_seat_listener seat_listener;

1
protocol/meson.build
View file

@ -46,6 +46,7 @@ client_protocols = [
[wl_protocol_dir, 'unstable/pointer-constraints/pointer-constraints-unstable-v1.xml'],
[wl_protocol_dir, 'unstable/pointer-gestures/pointer-gestures-unstable-v1.xml'],
[wl_protocol_dir, 'unstable/relative-pointer/relative-pointer-unstable-v1.xml'],
[wl_protocol_dir, 'unstable/tablet/tablet-unstable-v2.xml'],
[wl_protocol_dir, 'unstable/text-input/text-input-unstable-v3.xml'],
[wl_protocol_dir, 'unstable/xdg-decoration/xdg-decoration-unstable-v1.xml'],
[wl_protocol_dir, 'unstable/xdg-shell/xdg-shell-unstable-v6.xml'],