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Implement the pointer-gestures-unstable-v1 protocol

Browse source 
This protocol relays touchpad gesture events produced by libinput to
supporting clients (e.g. Evince, Eye of GNOME).
This commit is contained in:
Greg V 2019-01-26 01:51:38 +03:00 • committed by emersion
parent 018727b1fc
commit 9fe8e37961
16 changed files with 790 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
types/meson.build
View file

@ -48,6 +48,7 @@ lib_wlr_types = static_library(
'wlr_output_layout.c',
'wlr_output.c',
'wlr_pointer_constraints_v1.c',
'wlr_pointer_gestures_v1.c',
'wlr_pointer.c',
'wlr_presentation_time.c',
'wlr_primary_selection.c',

72
types/wlr_cursor.c
View file

@ -22,6 +22,12 @@ struct wlr_cursor_device {
struct wl_listener button;
struct wl_listener axis;
struct wl_listener frame;
struct wl_listener swipe_begin;
struct wl_listener swipe_update;
struct wl_listener swipe_end;
struct wl_listener pinch_begin;
struct wl_listener pinch_update;
struct wl_listener pinch_end;
struct wl_listener touch_down;
struct wl_listener touch_up;
@ -83,6 +89,12 @@ struct wlr_cursor *wlr_cursor_create(void) {
wl_signal_init(&cur->events.button);
wl_signal_init(&cur->events.axis);
wl_signal_init(&cur->events.frame);
wl_signal_init(&cur->events.swipe_begin);
wl_signal_init(&cur->events.swipe_update);
wl_signal_init(&cur->events.swipe_end);
wl_signal_init(&cur->events.pinch_begin);
wl_signal_init(&cur->events.pinch_update);
wl_signal_init(&cur->events.pinch_end);
// touch signals
wl_signal_init(&cur->events.touch_up);
@ -136,6 +148,12 @@ static void cursor_device_destroy(struct wlr_cursor_device *c_device) {
wl_list_remove(&c_device->button.link);
wl_list_remove(&c_device->axis.link);
wl_list_remove(&c_device->frame.link);
wl_list_remove(&c_device->swipe_begin.link);
wl_list_remove(&c_device->swipe_update.link);
wl_list_remove(&c_device->swipe_end.link);
wl_list_remove(&c_device->pinch_begin.link);
wl_list_remove(&c_device->pinch_update.link);
wl_list_remove(&c_device->pinch_end.link);
} else if (dev->type == WLR_INPUT_DEVICE_TOUCH) {
wl_list_remove(&c_device->touch_down.link);
wl_list_remove(&c_device->touch_up.link);
@ -423,6 +441,42 @@ static void handle_pointer_frame(struct wl_listener *listener, void *data) {
wlr_signal_emit_safe(&device->cursor->events.frame, device->cursor);
}
static void handle_pointer_swipe_begin(struct wl_listener *listener, void *data) {
struct wlr_event_pointer_swipe_begin *event = data;
struct wlr_cursor_device *device = wl_container_of(listener, device, swipe_begin);
wlr_signal_emit_safe(&device->cursor->events.swipe_begin, event);
}
static void handle_pointer_swipe_update(struct wl_listener *listener, void *data) {
struct wlr_event_pointer_swipe_update *event = data;
struct wlr_cursor_device *device = wl_container_of(listener, device, swipe_update);
wlr_signal_emit_safe(&device->cursor->events.swipe_update, event);
}
static void handle_pointer_swipe_end(struct wl_listener *listener, void *data) {
struct wlr_event_pointer_swipe_end *event = data;
struct wlr_cursor_device *device = wl_container_of(listener, device, swipe_end);
wlr_signal_emit_safe(&device->cursor->events.swipe_end, event);
}
static void handle_pointer_pinch_begin(struct wl_listener *listener, void *data) {
struct wlr_event_pointer_pinch_begin *event = data;
struct wlr_cursor_device *device = wl_container_of(listener, device, pinch_begin);
wlr_signal_emit_safe(&device->cursor->events.pinch_begin, event);
}
static void handle_pointer_pinch_update(struct wl_listener *listener, void *data) {
struct wlr_event_pointer_pinch_update *event = data;
struct wlr_cursor_device *device = wl_container_of(listener, device, pinch_update);
wlr_signal_emit_safe(&device->cursor->events.pinch_update, event);
}
static void handle_pointer_pinch_end(struct wl_listener *listener, void *data) {
struct wlr_event_pointer_pinch_end *event = data;
struct wlr_cursor_device *device = wl_container_of(listener, device, pinch_end);
wlr_signal_emit_safe(&device->cursor->events.pinch_end, event);
}
static void handle_touch_up(struct wl_listener *listener, void *data) {
struct wlr_event_touch_up *event = data;
struct wlr_cursor_device *device;
@ -549,6 +603,24 @@ static struct wlr_cursor_device *cursor_device_create(
wl_signal_add(&device->pointer->events.frame, &c_device->frame);
c_device->frame.notify = handle_pointer_frame;
wl_signal_add(&device->pointer->events.swipe_begin, &c_device->swipe_begin);
c_device->swipe_begin.notify = handle_pointer_swipe_begin;
wl_signal_add(&device->pointer->events.swipe_update, &c_device->swipe_update);
c_device->swipe_update.notify = handle_pointer_swipe_update;
wl_signal_add(&device->pointer->events.swipe_end, &c_device->swipe_end);
c_device->swipe_end.notify = handle_pointer_swipe_end;
wl_signal_add(&device->pointer->events.pinch_begin, &c_device->pinch_begin);
c_device->pinch_begin.notify = handle_pointer_pinch_begin;
wl_signal_add(&device->pointer->events.pinch_update, &c_device->pinch_update);
c_device->pinch_update.notify = handle_pointer_pinch_update;
wl_signal_add(&device->pointer->events.pinch_end, &c_device->pinch_end);
c_device->pinch_end.notify = handle_pointer_pinch_end;
} else if (device->type == WLR_INPUT_DEVICE_TOUCH) {
wl_signal_add(&device->touch->events.motion, &c_device->touch_motion);
c_device->touch_motion.notify = handle_touch_motion;

6
types/wlr_pointer.c
View file

@ -12,6 +12,12 @@ void wlr_pointer_init(struct wlr_pointer *pointer,
wl_signal_init(&pointer->events.button);
wl_signal_init(&pointer->events.axis);
wl_signal_init(&pointer->events.frame);
wl_signal_init(&pointer->events.swipe_begin);
wl_signal_init(&pointer->events.swipe_update);
wl_signal_init(&pointer->events.swipe_end);
wl_signal_init(&pointer->events.pinch_begin);
wl_signal_init(&pointer->events.pinch_update);
wl_signal_init(&pointer->events.pinch_end);
}
void wlr_pointer_destroy(struct wlr_pointer *pointer) {

339
types/wlr_pointer_gestures_v1.c Normal file
View file

@ -0,0 +1,339 @@
#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#endif
#include <assert.h>
#include <stdlib.h>
#include <wayland-server.h>
#include <wlr/types/wlr_pointer.h>
#include <wlr/types/wlr_pointer_gestures_v1.h>
#include <wlr/util/log.h>
#include "util/signal.h"
#include "pointer-gestures-unstable-v1-protocol.h"
#define POINTER_GESTURES_VERSION 1
static void resource_handle_destroy(struct wl_client *client,
struct wl_resource *resource) {
wl_resource_destroy(resource);
}
static void resource_remove_from_list(struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
}
static const struct zwp_pointer_gestures_v1_interface gestures_impl;
static const struct zwp_pointer_gesture_swipe_v1_interface swipe_impl;
static const struct zwp_pointer_gesture_pinch_v1_interface pinch_impl;
static struct wlr_pointer_gestures_v1 *pointer_gestures_from_resource(
struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
&zwp_pointer_gestures_v1_interface, &gestures_impl));
return wl_resource_get_user_data(resource);
}
static struct wlr_seat *seat_from_pointer_resource(
struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
&zwp_pointer_gesture_swipe_v1_interface, &swipe_impl) ||
wl_resource_instance_of(resource,
&zwp_pointer_gesture_pinch_v1_interface, &pinch_impl));
return wl_resource_get_user_data(resource);
}
void wlr_pointer_gestures_v1_send_swipe_begin(
struct wlr_pointer_gestures_v1 *gestures,
struct wlr_seat *seat,
uint32_t time_msec,
uint32_t fingers) {
struct wlr_surface *focus = seat->pointer_state.focused_surface;
if (focus == NULL) {
return;
}
struct wl_client *focus_client = wl_resource_get_client(focus->resource);
uint32_t serial = wl_display_next_serial(
wl_client_get_display(focus_client));
struct wl_resource *gesture;
wl_resource_for_each(gesture, &gestures->swipes) {
struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
struct wl_client *gesture_client = wl_resource_get_client(gesture);
if (gesture_seat != seat || gesture_client != focus_client) {
continue;
}
zwp_pointer_gesture_swipe_v1_send_begin(gesture, serial,
time_msec, focus->resource, fingers);
}
}
void wlr_pointer_gestures_v1_send_swipe_update(
struct wlr_pointer_gestures_v1 *gestures,
struct wlr_seat *seat,
uint32_t time_msec,
double dx,
double dy) {
struct wlr_surface *focus = seat->pointer_state.focused_surface;
if (focus == NULL) {
return;
}
struct wl_client *focus_client = wl_resource_get_client(focus->resource);
struct wl_resource *gesture;
wl_resource_for_each(gesture, &gestures->swipes) {
struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
struct wl_client *gesture_client = wl_resource_get_client(gesture);
if (gesture_seat != seat || gesture_client != focus_client) {
continue;
}
zwp_pointer_gesture_swipe_v1_send_update(gesture, time_msec,
wl_fixed_from_double(dx), wl_fixed_from_double(dy));
}
}
void wlr_pointer_gestures_v1_send_swipe_end(
struct wlr_pointer_gestures_v1 *gestures,
struct wlr_seat *seat,
uint32_t time_msec,
bool cancelled) {
struct wlr_surface *focus = seat->pointer_state.focused_surface;
if (focus == NULL) {
return;
}
struct wl_client *focus_client = wl_resource_get_client(focus->resource);
uint32_t serial = wl_display_next_serial(
wl_client_get_display(focus_client));
struct wl_resource *gesture;
wl_resource_for_each(gesture, &gestures->swipes) {
struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
struct wl_client *gesture_client = wl_resource_get_client(gesture);
if (gesture_seat != seat || gesture_client != focus_client) {
continue;
}
zwp_pointer_gesture_swipe_v1_send_end(gesture, serial,
time_msec, cancelled);
}
}
static const struct zwp_pointer_gesture_swipe_v1_interface swipe_impl = {
.destroy = resource_handle_destroy,
};
static void get_swipe_gesture(struct wl_client *client,
struct wl_resource *gestures_resource,
uint32_t id,
struct wl_resource *pointer_resource) {
struct wlr_seat_client *seat_client =
wlr_seat_client_from_pointer_resource(pointer_resource);
struct wlr_seat *seat = NULL;
if (seat_client != NULL) {
seat = seat_client->seat;
}
// Otherwise, the resource will be inert
// (NULL seat, so all seat comparisons will fail)
struct wlr_pointer_gestures_v1 *gestures =
pointer_gestures_from_resource(gestures_resource);
struct wl_resource *gesture = wl_resource_create(client,
&zwp_pointer_gesture_swipe_v1_interface,
wl_resource_get_version(gestures_resource),
id);
if (gesture == NULL) {
wl_client_post_no_memory(client);
return;
}
wl_resource_set_implementation(gesture, &swipe_impl, seat,
resource_remove_from_list);
wl_list_insert(&gestures->swipes, wl_resource_get_link(gesture));
}
void wlr_pointer_gestures_v1_send_pinch_begin(
struct wlr_pointer_gestures_v1 *gestures,
struct wlr_seat *seat,
uint32_t time_msec,
uint32_t fingers) {
struct wlr_surface *focus = seat->pointer_state.focused_surface;
if (focus == NULL) {
return;
}
struct wl_client *focus_client = wl_resource_get_client(focus->resource);
uint32_t serial = wl_display_next_serial(
wl_client_get_display(focus_client));
struct wl_resource *gesture;
wl_resource_for_each(gesture, &gestures->pinches) {
struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
struct wl_client *gesture_client = wl_resource_get_client(gesture);
if (gesture_seat != seat || gesture_client != focus_client) {
continue;
}
zwp_pointer_gesture_pinch_v1_send_begin(gesture, serial,
time_msec, focus->resource, fingers);
}
}
void wlr_pointer_gestures_v1_send_pinch_update(
struct wlr_pointer_gestures_v1 *gestures,
struct wlr_seat *seat,
uint32_t time_msec,
double dx,
double dy,
double scale,
double rotation) {
struct wlr_surface *focus = seat->pointer_state.focused_surface;
if (focus == NULL) {
return;
}
struct wl_client *focus_client = wl_resource_get_client(focus->resource);
struct wl_resource *gesture;
wl_resource_for_each(gesture, &gestures->pinches) {
struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
struct wl_client *gesture_client = wl_resource_get_client(gesture);
if (gesture_seat != seat || gesture_client != focus_client) {
continue;
}
zwp_pointer_gesture_pinch_v1_send_update(gesture, time_msec,
wl_fixed_from_double(dx), wl_fixed_from_double(dy),
wl_fixed_from_double(scale),
wl_fixed_from_double(rotation));
}
}
void wlr_pointer_gestures_v1_send_pinch_end(
struct wlr_pointer_gestures_v1 *gestures,
struct wlr_seat *seat,
uint32_t time_msec,
bool cancelled) {
struct wlr_surface *focus = seat->pointer_state.focused_surface;
if (focus == NULL) {
return;
}
struct wl_client *focus_client = wl_resource_get_client(focus->resource);
uint32_t serial = wl_display_next_serial(
wl_client_get_display(focus_client));
struct wl_resource *gesture;
wl_resource_for_each(gesture, &gestures->pinches) {
struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
struct wl_client *gesture_client = wl_resource_get_client(gesture);
if (gesture_seat != seat || gesture_client != focus_client) {
continue;
}
zwp_pointer_gesture_pinch_v1_send_end(gesture, serial,
time_msec, cancelled);
}
}
static const struct zwp_pointer_gesture_pinch_v1_interface pinch_impl = {
.destroy = resource_handle_destroy,
};
static void get_pinch_gesture(struct wl_client *client,
struct wl_resource *gestures_resource,
uint32_t id,
struct wl_resource *pointer_resource) {
struct wlr_seat_client *seat_client =
wlr_seat_client_from_pointer_resource(pointer_resource);
struct wlr_seat *seat = NULL;
if (seat_client != NULL) {
seat = seat_client->seat;
}
// Otherwise, the resource will be inert
// (NULL seat, so all seat comparisons will fail)
struct wlr_pointer_gestures_v1 *gestures =
pointer_gestures_from_resource(gestures_resource);
struct wl_resource *gesture = wl_resource_create(client,
&zwp_pointer_gesture_pinch_v1_interface,
wl_resource_get_version(gestures_resource),
id);
if (gesture == NULL) {
wl_client_post_no_memory(client);
return;
}
wl_resource_set_implementation(gesture, &pinch_impl, seat,
resource_remove_from_list);
wl_list_insert(&gestures->pinches, wl_resource_get_link(gesture));
}
static const struct zwp_pointer_gestures_v1_interface gestures_impl = {
.get_swipe_gesture = get_swipe_gesture,
.get_pinch_gesture = get_pinch_gesture,
};
static void pointer_gestures_v1_bind(struct wl_client *wl_client, void *data,
uint32_t version, uint32_t id) {
struct wlr_pointer_gestures_v1 *gestures = data;
struct wl_resource *resource = wl_resource_create(wl_client,
&zwp_pointer_gestures_v1_interface, version, id);
if (resource == NULL) {
wl_client_post_no_memory(wl_client);
return;
}
wl_resource_set_implementation(resource,
&gestures_impl, gestures, resource_remove_from_list);
wl_list_insert(&gestures->resources, wl_resource_get_link(resource));
}
static void handle_display_destroy(struct wl_listener *listener, void *data) {
struct wlr_pointer_gestures_v1 *tablet =
wl_container_of(listener, tablet, display_destroy);
wlr_pointer_gestures_v1_destroy(tablet);
}
void wlr_pointer_gestures_v1_destroy(struct wlr_pointer_gestures_v1 *gestures) {
struct wl_resource *resource, *tmp;
wl_resource_for_each_safe(resource, tmp, &gestures->resources) {
wl_resource_destroy(resource);
}
wl_resource_for_each_safe(resource, tmp, &gestures->swipes) {
wl_resource_destroy(resource);
}
wl_resource_for_each_safe(resource, tmp, &gestures->pinches) {
wl_resource_destroy(resource);
}
wl_global_destroy(gestures->global);
free(gestures);
}
struct wlr_pointer_gestures_v1 *wlr_pointer_gestures_v1_create(
struct wl_display *display) {
struct wlr_pointer_gestures_v1 *gestures =
calloc(1, sizeof(struct wlr_pointer_gestures_v1));
if (!gestures) {
return NULL;
}
wl_list_init(&gestures->resources);
wl_list_init(&gestures->swipes);
wl_list_init(&gestures->pinches);
gestures->global = wl_global_create(display,
&zwp_pointer_gestures_v1_interface, POINTER_GESTURES_VERSION,
gestures, pointer_gestures_v1_bind);
if (gestures->global == NULL) {
free(gestures);
return NULL;
}
gestures->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &gestures->display_destroy);
return gestures;
}