423 lines
13 KiB
C
423 lines
13 KiB
C
#ifndef _POSIX_C_SOURCE
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#define _POSIX_C_SOURCE 200809L
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#endif
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#include <assert.h>
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#include <stdlib.h>
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#include <wayland-server-core.h>
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#include <wlr/types/wlr_pointer.h>
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#include <wlr/types/wlr_pointer_gestures_v1.h>
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#include <wlr/util/log.h>
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#include "util/signal.h"
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#include "pointer-gestures-unstable-v1-protocol.h"
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#define POINTER_GESTURES_VERSION 3
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static void resource_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static void resource_remove_from_list(struct wl_resource *resource) {
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wl_list_remove(wl_resource_get_link(resource));
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}
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static const struct zwp_pointer_gestures_v1_interface gestures_impl;
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static const struct zwp_pointer_gesture_swipe_v1_interface swipe_impl;
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static const struct zwp_pointer_gesture_pinch_v1_interface pinch_impl;
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static const struct zwp_pointer_gesture_hold_v1_interface hold_impl;
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static struct wlr_pointer_gestures_v1 *pointer_gestures_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&zwp_pointer_gestures_v1_interface, &gestures_impl));
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return wl_resource_get_user_data(resource);
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}
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static struct wlr_seat *seat_from_pointer_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&zwp_pointer_gesture_swipe_v1_interface, &swipe_impl) ||
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wl_resource_instance_of(resource,
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&zwp_pointer_gesture_pinch_v1_interface, &pinch_impl) ||
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wl_resource_instance_of(resource,
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&zwp_pointer_gesture_hold_v1_interface, &hold_impl));
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return wl_resource_get_user_data(resource);
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}
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void wlr_pointer_gestures_v1_send_swipe_begin(
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struct wlr_pointer_gestures_v1 *gestures,
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struct wlr_seat *seat,
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uint32_t time_msec,
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uint32_t fingers) {
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struct wlr_surface *focus = seat->pointer_state.focused_surface;
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if (focus == NULL) {
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return;
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}
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struct wl_client *focus_client = wl_resource_get_client(focus->resource);
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uint32_t serial = wlr_seat_client_next_serial(
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seat->pointer_state.focused_client);
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struct wl_resource *gesture;
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wl_resource_for_each(gesture, &gestures->swipes) {
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struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
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struct wl_client *gesture_client = wl_resource_get_client(gesture);
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if (gesture_seat != seat || gesture_client != focus_client) {
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continue;
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}
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zwp_pointer_gesture_swipe_v1_send_begin(gesture, serial,
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time_msec, focus->resource, fingers);
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}
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}
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void wlr_pointer_gestures_v1_send_swipe_update(
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struct wlr_pointer_gestures_v1 *gestures,
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struct wlr_seat *seat,
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uint32_t time_msec,
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double dx,
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double dy) {
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struct wlr_surface *focus = seat->pointer_state.focused_surface;
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if (focus == NULL) {
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return;
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}
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struct wl_client *focus_client = wl_resource_get_client(focus->resource);
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struct wl_resource *gesture;
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wl_resource_for_each(gesture, &gestures->swipes) {
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struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
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struct wl_client *gesture_client = wl_resource_get_client(gesture);
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if (gesture_seat != seat || gesture_client != focus_client) {
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continue;
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}
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zwp_pointer_gesture_swipe_v1_send_update(gesture, time_msec,
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wl_fixed_from_double(dx), wl_fixed_from_double(dy));
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}
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}
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void wlr_pointer_gestures_v1_send_swipe_end(
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struct wlr_pointer_gestures_v1 *gestures,
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struct wlr_seat *seat,
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uint32_t time_msec,
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bool cancelled) {
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struct wlr_surface *focus = seat->pointer_state.focused_surface;
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if (focus == NULL) {
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return;
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}
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struct wl_client *focus_client = wl_resource_get_client(focus->resource);
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uint32_t serial = wlr_seat_client_next_serial(
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seat->pointer_state.focused_client);
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struct wl_resource *gesture;
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wl_resource_for_each(gesture, &gestures->swipes) {
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struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
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struct wl_client *gesture_client = wl_resource_get_client(gesture);
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if (gesture_seat != seat || gesture_client != focus_client) {
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continue;
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}
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zwp_pointer_gesture_swipe_v1_send_end(gesture, serial,
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time_msec, cancelled);
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}
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}
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static const struct zwp_pointer_gesture_swipe_v1_interface swipe_impl = {
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.destroy = resource_handle_destroy,
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};
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static void get_swipe_gesture(struct wl_client *client,
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struct wl_resource *gestures_resource,
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uint32_t id,
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struct wl_resource *pointer_resource) {
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struct wlr_seat_client *seat_client =
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wlr_seat_client_from_pointer_resource(pointer_resource);
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struct wlr_seat *seat = NULL;
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if (seat_client != NULL) {
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seat = seat_client->seat;
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}
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// Otherwise, the resource will be inert
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// (NULL seat, so all seat comparisons will fail)
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struct wlr_pointer_gestures_v1 *gestures =
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pointer_gestures_from_resource(gestures_resource);
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struct wl_resource *gesture = wl_resource_create(client,
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&zwp_pointer_gesture_swipe_v1_interface,
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wl_resource_get_version(gestures_resource),
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id);
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if (gesture == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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wl_resource_set_implementation(gesture, &swipe_impl, seat,
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resource_remove_from_list);
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wl_list_insert(&gestures->swipes, wl_resource_get_link(gesture));
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}
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void wlr_pointer_gestures_v1_send_pinch_begin(
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struct wlr_pointer_gestures_v1 *gestures,
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struct wlr_seat *seat,
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uint32_t time_msec,
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uint32_t fingers) {
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struct wlr_surface *focus = seat->pointer_state.focused_surface;
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if (focus == NULL) {
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return;
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}
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struct wl_client *focus_client = wl_resource_get_client(focus->resource);
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uint32_t serial = wlr_seat_client_next_serial(
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seat->pointer_state.focused_client);
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struct wl_resource *gesture;
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wl_resource_for_each(gesture, &gestures->pinches) {
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struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
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struct wl_client *gesture_client = wl_resource_get_client(gesture);
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if (gesture_seat != seat || gesture_client != focus_client) {
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continue;
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}
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zwp_pointer_gesture_pinch_v1_send_begin(gesture, serial,
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time_msec, focus->resource, fingers);
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}
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}
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void wlr_pointer_gestures_v1_send_pinch_update(
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struct wlr_pointer_gestures_v1 *gestures,
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struct wlr_seat *seat,
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uint32_t time_msec,
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double dx,
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double dy,
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double scale,
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double rotation) {
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struct wlr_surface *focus = seat->pointer_state.focused_surface;
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if (focus == NULL) {
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return;
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}
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struct wl_client *focus_client = wl_resource_get_client(focus->resource);
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struct wl_resource *gesture;
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wl_resource_for_each(gesture, &gestures->pinches) {
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struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
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struct wl_client *gesture_client = wl_resource_get_client(gesture);
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if (gesture_seat != seat || gesture_client != focus_client) {
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continue;
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}
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zwp_pointer_gesture_pinch_v1_send_update(gesture, time_msec,
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wl_fixed_from_double(dx), wl_fixed_from_double(dy),
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wl_fixed_from_double(scale),
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wl_fixed_from_double(rotation));
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}
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}
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void wlr_pointer_gestures_v1_send_pinch_end(
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struct wlr_pointer_gestures_v1 *gestures,
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struct wlr_seat *seat,
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uint32_t time_msec,
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bool cancelled) {
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struct wlr_surface *focus = seat->pointer_state.focused_surface;
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if (focus == NULL) {
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return;
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}
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struct wl_client *focus_client = wl_resource_get_client(focus->resource);
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uint32_t serial = wlr_seat_client_next_serial(
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seat->pointer_state.focused_client);
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struct wl_resource *gesture;
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wl_resource_for_each(gesture, &gestures->pinches) {
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struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
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struct wl_client *gesture_client = wl_resource_get_client(gesture);
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if (gesture_seat != seat || gesture_client != focus_client) {
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continue;
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}
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zwp_pointer_gesture_pinch_v1_send_end(gesture, serial,
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time_msec, cancelled);
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}
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}
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static const struct zwp_pointer_gesture_pinch_v1_interface pinch_impl = {
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.destroy = resource_handle_destroy,
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};
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static void get_pinch_gesture(struct wl_client *client,
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struct wl_resource *gestures_resource,
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uint32_t id,
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struct wl_resource *pointer_resource) {
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struct wlr_seat_client *seat_client =
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wlr_seat_client_from_pointer_resource(pointer_resource);
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struct wlr_seat *seat = NULL;
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if (seat_client != NULL) {
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seat = seat_client->seat;
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}
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// Otherwise, the resource will be inert
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// (NULL seat, so all seat comparisons will fail)
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struct wlr_pointer_gestures_v1 *gestures =
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pointer_gestures_from_resource(gestures_resource);
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struct wl_resource *gesture = wl_resource_create(client,
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&zwp_pointer_gesture_pinch_v1_interface,
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wl_resource_get_version(gestures_resource),
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id);
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if (gesture == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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wl_resource_set_implementation(gesture, &pinch_impl, seat,
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resource_remove_from_list);
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wl_list_insert(&gestures->pinches, wl_resource_get_link(gesture));
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}
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static void pointer_gestures_release(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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void wlr_pointer_gestures_v1_send_hold_begin(
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struct wlr_pointer_gestures_v1 *gestures,
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struct wlr_seat *seat,
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uint32_t time_msec,
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uint32_t fingers) {
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struct wlr_surface *focus = seat->pointer_state.focused_surface;
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if (focus == NULL) {
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return;
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}
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struct wl_client *focus_client = wl_resource_get_client(focus->resource);
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uint32_t serial = wlr_seat_client_next_serial(
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seat->pointer_state.focused_client);
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struct wl_resource *gesture;
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wl_resource_for_each(gesture, &gestures->holds) {
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struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
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struct wl_client *gesture_client = wl_resource_get_client(gesture);
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if (gesture_seat != seat || gesture_client != focus_client) {
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continue;
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}
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zwp_pointer_gesture_hold_v1_send_begin(gesture, serial,
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time_msec, focus->resource, fingers);
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}
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}
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void wlr_pointer_gestures_v1_send_hold_end(
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struct wlr_pointer_gestures_v1 *gestures,
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struct wlr_seat *seat,
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uint32_t time_msec,
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bool cancelled) {
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struct wlr_surface *focus = seat->pointer_state.focused_surface;
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if (focus == NULL) {
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return;
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}
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struct wl_client *focus_client = wl_resource_get_client(focus->resource);
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uint32_t serial = wlr_seat_client_next_serial(
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seat->pointer_state.focused_client);
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struct wl_resource *gesture;
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wl_resource_for_each(gesture, &gestures->holds) {
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struct wlr_seat *gesture_seat = seat_from_pointer_resource(gesture);
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struct wl_client *gesture_client = wl_resource_get_client(gesture);
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if (gesture_seat != seat || gesture_client != focus_client) {
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continue;
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}
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zwp_pointer_gesture_hold_v1_send_end(gesture, serial,
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time_msec, cancelled);
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}
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}
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static const struct zwp_pointer_gesture_hold_v1_interface hold_impl = {
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.destroy = resource_handle_destroy,
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};
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static void get_hold_gesture(struct wl_client *client,
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struct wl_resource *gestures_resource,
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uint32_t id,
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struct wl_resource *pointer_resource) {
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struct wlr_seat_client *seat_client =
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wlr_seat_client_from_pointer_resource(pointer_resource);
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struct wlr_seat *seat = NULL;
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if (seat_client != NULL) {
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seat = seat_client->seat;
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}
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// Otherwise, the resource will be inert
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// (NULL seat, so all seat comparisons will fail)
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struct wlr_pointer_gestures_v1 *gestures =
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pointer_gestures_from_resource(gestures_resource);
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struct wl_resource *gesture = wl_resource_create(client,
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&zwp_pointer_gesture_hold_v1_interface,
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wl_resource_get_version(gestures_resource),
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id);
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if (gesture == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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wl_resource_set_implementation(gesture, &hold_impl, seat,
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resource_remove_from_list);
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wl_list_insert(&gestures->holds, wl_resource_get_link(gesture));
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}
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static const struct zwp_pointer_gestures_v1_interface gestures_impl = {
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.get_swipe_gesture = get_swipe_gesture,
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.get_pinch_gesture = get_pinch_gesture,
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.release = pointer_gestures_release,
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.get_hold_gesture = get_hold_gesture,
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};
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static void pointer_gestures_v1_bind(struct wl_client *wl_client, void *data,
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uint32_t version, uint32_t id) {
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struct wlr_pointer_gestures_v1 *gestures = data;
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struct wl_resource *resource = wl_resource_create(wl_client,
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&zwp_pointer_gestures_v1_interface, version, id);
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if (resource == NULL) {
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wl_client_post_no_memory(wl_client);
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return;
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}
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wl_resource_set_implementation(resource,
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&gestures_impl, gestures, NULL);
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}
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static void handle_display_destroy(struct wl_listener *listener, void *data) {
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struct wlr_pointer_gestures_v1 *gestures =
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wl_container_of(listener, gestures, display_destroy);
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wl_list_remove(&gestures->display_destroy.link);
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wl_global_destroy(gestures->global);
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free(gestures);
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}
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struct wlr_pointer_gestures_v1 *wlr_pointer_gestures_v1_create(
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struct wl_display *display) {
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struct wlr_pointer_gestures_v1 *gestures =
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calloc(1, sizeof(struct wlr_pointer_gestures_v1));
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if (!gestures) {
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return NULL;
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}
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wl_list_init(&gestures->swipes);
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wl_list_init(&gestures->pinches);
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wl_list_init(&gestures->holds);
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gestures->global = wl_global_create(display,
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&zwp_pointer_gestures_v1_interface, POINTER_GESTURES_VERSION,
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gestures, pointer_gestures_v1_bind);
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if (gestures->global == NULL) {
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free(gestures);
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return NULL;
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}
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gestures->display_destroy.notify = handle_display_destroy;
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wl_display_add_destroy_listener(display, &gestures->display_destroy);
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return gestures;
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}
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