This protocol relays touchpad gesture events produced by libinput to supporting clients (e.g. Evince, Eye of GNOME).master
Greg V
6 years ago
committed by
emersion
parent
018727b1fc
commit
9fe8e37961
@ -0,0 +1,73 @@
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/*
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* This an unstable interface of wlroots. No guarantees are made regarding the
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* future consistency of this API.
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*/
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#ifndef WLR_USE_UNSTABLE
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#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
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#endif
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#ifndef WLR_TYPES_WLR_POINTER_GESTURES_V1_H
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#define WLR_TYPES_WLR_POINTER_GESTURES_V1_H
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#include <wayland-server.h>
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#include <wlr/types/wlr_seat.h>
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#include <wlr/types/wlr_surface.h>
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struct wlr_pointer_gestures_v1 {
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struct wl_global *global;
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struct wl_list resources; // wl_resource_get_link
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struct wl_list swipes; // wl_resource_get_link
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struct wl_list pinches; // wl_resource_get_link
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struct wl_listener display_destroy;
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struct {
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struct wl_signal destroy;
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} events;
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void *data;
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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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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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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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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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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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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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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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void wlr_pointer_gestures_v1_destroy(
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struct wlr_pointer_gestures_v1 *pointer_gestures_v1);
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#endif
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@ -0,0 +1,339 @@
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#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.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 1
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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 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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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 = wl_display_next_serial(
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wl_client_get_display(focus_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 = wl_display_next_serial(
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wl_client_get_display(focus_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 = wl_display_next_serial(
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wl_client_get_display(focus_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 = wl_display_next_serial(
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wl_client_get_display(focus_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 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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};
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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, resource_remove_from_list);
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wl_list_insert(&gestures->resources, wl_resource_get_link(resource));
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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 *tablet =
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wl_container_of(listener, tablet, display_destroy);
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wlr_pointer_gestures_v1_destroy(tablet);
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}
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void wlr_pointer_gestures_v1_destroy(struct wlr_pointer_gestures_v1 *gestures) {
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struct wl_resource *resource, *tmp;
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wl_resource_for_each_safe(resource, tmp, &gestures->resources) {
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wl_resource_destroy(resource);
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}
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wl_resource_for_each_safe(resource, tmp, &gestures->swipes) {
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wl_resource_destroy(resource);
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}
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wl_resource_for_each_safe(resource, tmp, &gestures->pinches) {
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wl_resource_destroy(resource);
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}
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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->resources);
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wl_list_init(&gestures->swipes);
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wl_list_init(&gestures->pinches);
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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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