Create & implement transient seat protocol

This commit is contained in:
Andri Yngvason 2020-02-08 15:52:59 +00:00 committed by Simon Ser
parent 435ca39960
commit 3a91dc1b48
4 changed files with 225 additions and 0 deletions

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@ -0,0 +1,63 @@
/*
* This an unstable interface of wlroots. No guarantees are made regarding the
* future consistency of this API.
*/
#ifndef WLR_USE_UNSTABLE
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
#endif
#ifndef WLR_TYPES_WLR_TRANSIENT_SEAT_V1_H
#define WLR_TYPES_WLR_TRANSIENT_SEAT_V1_H
#include <wayland-server-core.h>
struct wlr_seat;
struct wlr_transient_seat_v1 {
struct wl_resource *resource;
struct wlr_seat *seat;
// private state
struct wl_listener seat_destroy;
};
struct wlr_transient_seat_manager_v1 {
struct wl_global *global;
struct wl_listener display_destroy;
struct {
/**
* Upon receiving this signal, call
* wlr_transient_seat_v1_ready() to pass a newly created seat
* to the manager, or
* wlr_transient_seat_v1_deny() to deny the request to create
* a seat.
*/
struct wl_signal create_seat; // struct wlr_transient_seat_v1
} events;
};
struct wlr_transient_seat_manager_v1 *wlr_transient_seat_manager_v1_create(
struct wl_display *display);
/**
* To be called when the create_seat event is received.
*
* This signals that the seat was successfully added and is ready.
*
* When the transient seat is destroyed by the client, the wlr_seat will be
* destroyed. The wlr_seat may also be destroyed from elsewhere, in which case
* the transient seat will become inert.
*/
void wlr_transient_seat_v1_ready(struct wlr_transient_seat_v1 *seat,
struct wlr_seat *wlr_seat);
/**
* To be called when the create_seat event is received.
*
* This signals that the compositor has denied the user's request to create a
* transient seat.
*/
void wlr_transient_seat_v1_deny(struct wlr_transient_seat_v1 *seat);
#endif /* WLR_TYPES_WLR_TRANSIENT_SEAT_V1_H */

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@ -45,6 +45,7 @@ protocols = {
'xdg-foreign-unstable-v1': wl_protocol_dir / 'unstable/xdg-foreign/xdg-foreign-unstable-v1.xml',
'xdg-foreign-unstable-v2': wl_protocol_dir / 'unstable/xdg-foreign/xdg-foreign-unstable-v2.xml',
'xdg-output-unstable-v1': wl_protocol_dir / 'unstable/xdg-output/xdg-output-unstable-v1.xml',
'ext-transient-seat-v1': wl_protocol_dir / 'staging/ext-transient-seat/ext-transient-seat-v1.xml',
# Other protocols
'drm': 'drm.xml',

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@ -79,6 +79,7 @@ wlr_files += files(
'wlr_tablet_tool.c',
'wlr_text_input_v3.c',
'wlr_touch.c',
'wlr_transient_seat_v1.c',
'wlr_viewporter.c',
'wlr_virtual_keyboard_v1.c',
'wlr_virtual_pointer_v1.c',

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@ -0,0 +1,160 @@
#include <assert.h>
#include <stdlib.h>
#include <wayland-util.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/types/wlr_transient_seat_v1.h>
#include "ext-transient-seat-v1-protocol.h"
static const struct ext_transient_seat_manager_v1_interface manager_impl;
static const struct ext_transient_seat_v1_interface transient_seat_impl;
static struct wlr_transient_seat_manager_v1 *manager_from_resource(
struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
&ext_transient_seat_manager_v1_interface, &manager_impl));
return wl_resource_get_user_data(resource);
}
static struct wlr_transient_seat_v1 *transient_seat_from_resource(
struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
&ext_transient_seat_v1_interface, &transient_seat_impl));
return wl_resource_get_user_data(resource);
}
static void transient_seat_destroy(struct wlr_transient_seat_v1 *seat) {
wl_list_remove(&seat->seat_destroy.link);
wlr_seat_destroy(seat->seat);
free(seat);
}
static void transient_seat_handle_resource_destroy(
struct wl_resource *resource) {
struct wlr_transient_seat_v1 *seat =
transient_seat_from_resource(resource);
transient_seat_destroy(seat);
}
static void transient_seat_handle_destroy(struct wl_client *client,
struct wl_resource *seat_resource) {
wl_resource_destroy(seat_resource);
}
static const struct ext_transient_seat_v1_interface transient_seat_impl = {
.destroy = transient_seat_handle_destroy,
};
static void manager_create_transient_seat(struct wl_client *client,
struct wl_resource *manager_resource, uint32_t id) {
struct wlr_transient_seat_manager_v1 *manager =
manager_from_resource(manager_resource);
struct wlr_transient_seat_v1 *seat = calloc(1, sizeof(*seat));
if (!seat) {
goto failure;
}
int version = wl_resource_get_version(manager_resource);
seat->resource = wl_resource_create(client,
&ext_transient_seat_v1_interface, version, id);
if (!seat->resource) {
goto failure;
}
wl_resource_set_implementation(seat->resource, &transient_seat_impl,
seat, transient_seat_handle_resource_destroy);
wl_signal_emit_mutable(&manager->events.create_seat, seat);
return;
failure:
free(seat);
wl_client_post_no_memory(client);
}
static void transient_seat_handle_seat_destroy(struct wl_listener *listener,
void *data) {
struct wlr_transient_seat_v1 *seat = wl_container_of(listener, seat,
seat_destroy);
seat->seat = NULL;
wl_resource_set_user_data(seat->resource, NULL);
transient_seat_destroy(seat);
}
void wlr_transient_seat_v1_ready(struct wlr_transient_seat_v1 *seat,
struct wlr_seat *wlr_seat) {
assert(wlr_seat);
seat->seat = wlr_seat;
seat->seat_destroy.notify = transient_seat_handle_seat_destroy;
wl_signal_add(&wlr_seat->events.destroy, &seat->seat_destroy);
struct wl_client *client = wl_resource_get_client(seat->resource);
uint32_t global_name = wl_global_get_name(seat->seat->global, client);
assert(global_name != 0);
ext_transient_seat_v1_send_ready(seat->resource, global_name);
}
void wlr_transient_seat_v1_deny(struct wlr_transient_seat_v1 *seat) {
ext_transient_seat_v1_send_denied(seat->resource);
}
static void manager_handle_destroy(struct wl_client *client,
struct wl_resource *manager_resource) {
wl_resource_destroy(manager_resource);
}
static const struct ext_transient_seat_manager_v1_interface manager_impl = {
.create = manager_create_transient_seat,
.destroy = manager_handle_destroy,
};
static void handle_display_destroy(struct wl_listener *listener, void *data) {
struct wlr_transient_seat_manager_v1 *manager =
wl_container_of(listener, manager, display_destroy);
wl_list_remove(&manager->display_destroy.link);
wl_global_destroy(manager->global);
free(manager);
}
static void transient_seat_manager_bind(struct wl_client *client, void *data,
uint32_t version, uint32_t id) {
struct wlr_transient_seat_manager_v1 *manager = data;
struct wl_resource *resource = wl_resource_create(client,
&ext_transient_seat_manager_v1_interface, version, id);
if (!resource) {
wl_client_post_no_memory(client);
return;
}
wl_resource_set_implementation(resource, &manager_impl, manager, NULL);
}
struct wlr_transient_seat_manager_v1 *wlr_transient_seat_manager_v1_create(
struct wl_display *display) {
struct wlr_transient_seat_manager_v1 *manager =
calloc(1, sizeof(*manager));
if (!manager) {
return NULL;
}
manager->global = wl_global_create(display,
&ext_transient_seat_manager_v1_interface, 1, manager,
transient_seat_manager_bind);
if (!manager->global) {
free(manager);
return NULL;
}
manager->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &manager->display_destroy);
wl_signal_init(&manager->events.create_seat);
return manager;
}