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ext-foreign-toplevel-list-v1: new protocol implementation

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This implements the new ext-foreign-toplevel-list-v1 protocol [1].
Implemented analog to the zwlr-foreign-toplevel-management-v1 implementation.
The additional _ext_ in the names was added to avoid name collisions.

[1]: https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/187

Co-authored-by: Leon Henrik Plickat <leonhenrik.plickat@stud.uni-goettingen.de>
master
columbarius 10 months ago
parent cb815e8847
commit 9e426e70e6
4 changed files with 344 additions and 0 deletions
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67
include/wlr/types/wlr_ext_foreign_toplevel_list_v1.h
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@ -0,0 +1,67 @@
/*
* 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_FOREIGN_TOPLEVEL_LIST_V1_H
#define WLR_TYPES_WLR_FOREIGN_TOPLEVEL_LIST_V1_H
#include <wayland-server-core.h>
struct wlr_ext_foreign_toplevel_list_v1 {
struct wl_global *global;
struct wl_list resources; // wl_resource_get_link()
struct wl_list toplevels; // ext_foreign_toplevel_handle_v1.link
struct wl_listener display_destroy;
struct {
struct wl_signal destroy;
} events;
void *data;
};
struct wlr_ext_foreign_toplevel_handle_v1 {
struct wlr_ext_foreign_toplevel_list_v1 *list;
struct wl_list resources; // wl_resource_get_link()
struct wl_list link; // wlr_ext_foreign_toplevel_list_v1.toplevels
char *title;
char *app_id;
char *identifier;
struct {
struct wl_signal destroy;
} events;
void *data;
};
struct wlr_ext_foreign_toplevel_handle_v1_state {
const char *title;
const char *app_id;
};
struct wlr_ext_foreign_toplevel_list_v1 *wlr_ext_foreign_toplevel_list_v1_create(
struct wl_display *display, uint32_t version);
struct wlr_ext_foreign_toplevel_handle_v1 *wlr_ext_foreign_toplevel_handle_v1_create(
struct wlr_ext_foreign_toplevel_list_v1 *list,
const struct wlr_ext_foreign_toplevel_handle_v1_state *state);
/**
* Destroy the given toplevel handle, sending the closed event to any
* client.
*/
void wlr_ext_foreign_toplevel_handle_v1_destroy(
struct wlr_ext_foreign_toplevel_handle_v1 *toplevel);
void wlr_ext_foreign_toplevel_handle_v1_update_state(
struct wlr_ext_foreign_toplevel_handle_v1 *toplevel,
const struct wlr_ext_foreign_toplevel_handle_v1_state *state);
#endif

1
protocol/meson.build
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@ -22,6 +22,7 @@ protocols = {
'content-type-v1': wl_protocol_dir / 'staging/content-type/content-type-v1.xml',
'cursor-shape-v1': wl_protocol_dir / 'staging/cursor-shape/cursor-shape-v1.xml',
'drm-lease-v1': wl_protocol_dir / 'staging/drm-lease/drm-lease-v1.xml',
'ext-foreign-toplevel-list-v1': wl_protocol_dir / 'staging/ext-foreign-toplevel-list/ext-foreign-toplevel-list-v1.xml',
'ext-idle-notify-v1': wl_protocol_dir / 'staging/ext-idle-notify/ext-idle-notify-v1.xml',
'ext-session-lock-v1': wl_protocol_dir / 'staging/ext-session-lock/ext-session-lock-v1.xml',
'fractional-scale-v1': wl_protocol_dir / 'staging/fractional-scale/fractional-scale-v1.xml',

1
types/meson.build
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@ -42,6 +42,7 @@ wlr_files += files(
'wlr_drm.c',
'wlr_export_dmabuf_v1.c',
'wlr_foreign_toplevel_management_v1.c',
'wlr_ext_foreign_toplevel_list_v1.c',
'wlr_fullscreen_shell_v1.c',
'wlr_gamma_control_v1.c',
'wlr_idle_inhibit_v1.c',

275
types/wlr_ext_foreign_toplevel_list_v1.c
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#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_ext_foreign_toplevel_list_v1.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/util/log.h>
#include "ext-foreign-toplevel-list-v1-protocol.h"
#include "util/token.h"
#define FOREIGN_TOPLEVEL_LIST_V1_VERSION 1
static const struct ext_foreign_toplevel_list_v1_interface toplevel_handle_impl;
static void foreign_toplevel_handle_destroy(struct wl_client *client,
struct wl_resource *resource) {
wl_resource_destroy(resource);
}
static const struct ext_foreign_toplevel_list_v1_interface toplevel_handle_impl = {
.destroy = foreign_toplevel_handle_destroy,
};
void wlr_ext_foreign_toplevel_handle_v1_update_state(
struct wlr_ext_foreign_toplevel_handle_v1 *toplevel,
const struct wlr_ext_foreign_toplevel_handle_v1_state *state) {
bool changed_app_id = false;
bool changed_title = false;
if (state->app_id) {
if (strcmp(toplevel->app_id, state->app_id) != 0) {
free(toplevel->app_id);
toplevel->app_id = strdup(state->app_id);
if (toplevel->app_id == NULL) {
wlr_log(WLR_ERROR, "failed to allocate memory for toplevel app_id");
return;
}
changed_app_id = true;
}
} else {
if (toplevel->app_id) {
free(toplevel->app_id);
toplevel->app_id = NULL;
changed_app_id = true;
}
}
if (state->title) {
if (strcmp(toplevel->title, state->title) != 0) {
free(toplevel->title);
toplevel->title = strdup(state->title);
if (toplevel->title == NULL) {
wlr_log(WLR_ERROR, "failed to allocate memory for toplevel title");
return;
}
changed_title = true;
}
} else {
if (toplevel->title) {
free(toplevel->title);
toplevel->title = NULL;
changed_title = true;
}
}
if (!changed_app_id && !changed_title) {
return;
}
struct wl_resource *resource;
wl_resource_for_each(resource, &toplevel->resources) {
if (changed_app_id) {
ext_foreign_toplevel_handle_v1_send_app_id(resource, state->app_id ? state->app_id : "");
}
if (changed_title) {
ext_foreign_toplevel_handle_v1_send_title(resource, state->title ? state->title : "");
}
ext_foreign_toplevel_handle_v1_send_done(resource);
}
}
void wlr_ext_foreign_toplevel_handle_v1_destroy(
struct wlr_ext_foreign_toplevel_handle_v1 *toplevel) {
if (!toplevel) {
return;
}
wl_signal_emit_mutable(&toplevel->events.destroy, NULL);
struct wl_resource *resource, *tmp;
wl_resource_for_each_safe(resource, tmp, &toplevel->resources) {
ext_foreign_toplevel_handle_v1_send_closed(resource);
wl_resource_set_user_data(resource, NULL);
wl_list_remove(wl_resource_get_link(resource));
wl_list_init(wl_resource_get_link(resource));
}
wl_list_remove(&toplevel->link);
free(toplevel->title);
free(toplevel->app_id);
free(toplevel->identifier);
free(toplevel);
}
static void foreign_toplevel_resource_destroy(struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
}
static struct wl_resource *create_toplevel_resource_for_resource(
struct wlr_ext_foreign_toplevel_handle_v1 *toplevel,
struct wl_resource *list_resource) {
struct wl_client *client = wl_resource_get_client(list_resource);
struct wl_resource *resource = wl_resource_create(client,
&ext_foreign_toplevel_handle_v1_interface,
wl_resource_get_version(list_resource), 0);
if (!resource) {
wl_client_post_no_memory(client);
return NULL;
}
wl_resource_set_implementation(resource, &toplevel_handle_impl, toplevel,
foreign_toplevel_resource_destroy);
wl_list_insert(&toplevel->resources, wl_resource_get_link(resource));
ext_foreign_toplevel_list_v1_send_toplevel(list_resource, resource);
return resource;
}
static void toplevel_send_details_to_toplevel_resource(
struct wlr_ext_foreign_toplevel_handle_v1 *toplevel,
struct wl_resource *resource) {
if (toplevel->title) {
ext_foreign_toplevel_handle_v1_send_title(resource, toplevel->title);
}
if (toplevel->app_id) {
ext_foreign_toplevel_handle_v1_send_app_id(resource, toplevel->app_id);
}
assert(toplevel->identifier); // Required to exist by protocol.
ext_foreign_toplevel_handle_v1_send_identifier(resource, toplevel->identifier);
ext_foreign_toplevel_handle_v1_send_done(resource);
}
struct wlr_ext_foreign_toplevel_handle_v1 *
wlr_ext_foreign_toplevel_handle_v1_create(struct wlr_ext_foreign_toplevel_list_v1 *list,
const struct wlr_ext_foreign_toplevel_handle_v1_state *state) {
struct wlr_ext_foreign_toplevel_handle_v1 *toplevel = calloc(1, sizeof(*toplevel));
if (!toplevel) {
wlr_log(WLR_ERROR, "failed to allocate memory for toplevel handle");
return NULL;
}
toplevel->identifier = calloc(TOKEN_SIZE, sizeof(char));
if (toplevel->identifier == NULL) {
wlr_log(WLR_ERROR, "failed to allocate memory for toplevel identifier");
free(toplevel);
return NULL;
}
if (!generate_token(toplevel->identifier)) {
free(toplevel->identifier);
free(toplevel);
return NULL;
}
wl_list_insert(&list->toplevels, &toplevel->link);
toplevel->list = list;
if (state->app_id) {
toplevel->app_id = strdup(state->app_id);
}
if (state->title) {
toplevel->title = strdup(state->title);
}
wl_list_init(&toplevel->resources);
wl_signal_init(&toplevel->events.destroy);
struct wl_resource *list_resource, *toplevel_resource;
wl_resource_for_each(list_resource, &list->resources) {
toplevel_resource = create_toplevel_resource_for_resource(toplevel, list_resource);
if (!toplevel_resource) {
continue;
}
toplevel_send_details_to_toplevel_resource(toplevel, toplevel_resource);
}
return toplevel;
}
static const struct ext_foreign_toplevel_list_v1_interface
foreign_toplevel_list_impl;
static void foreign_toplevel_list_handle_stop(struct wl_client *client,
struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
&ext_foreign_toplevel_list_v1_interface,
&foreign_toplevel_list_impl));
ext_foreign_toplevel_list_v1_send_finished(resource);
wl_resource_destroy(resource);
}
static const struct ext_foreign_toplevel_list_v1_interface
foreign_toplevel_list_impl = {
.stop = foreign_toplevel_list_handle_stop
};
static void foreign_toplevel_list_resource_destroy(
struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
}
static void foreign_toplevel_list_bind(struct wl_client *client, void *data,
uint32_t version, uint32_t id) {
struct wlr_ext_foreign_toplevel_list_v1 *list = data;
struct wl_resource *resource = wl_resource_create(client,
&ext_foreign_toplevel_list_v1_interface, version, id);
if (!resource) {
wl_client_post_no_memory(client);
return;
}
wl_resource_set_implementation(resource, &foreign_toplevel_list_impl,
list, foreign_toplevel_list_resource_destroy);
wl_list_insert(&list->resources, wl_resource_get_link(resource));
struct wlr_ext_foreign_toplevel_handle_v1 *toplevel;
wl_list_for_each(toplevel, &list->toplevels, link) {
struct wl_resource *toplevel_resource =
create_toplevel_resource_for_resource(toplevel, resource);
toplevel_send_details_to_toplevel_resource(toplevel,
toplevel_resource);
}
}
static void handle_display_destroy(struct wl_listener *listener, void *data) {
struct wlr_ext_foreign_toplevel_list_v1 *list =
wl_container_of(listener, list, display_destroy);
wl_signal_emit_mutable(&list->events.destroy, NULL);
wl_list_remove(&list->display_destroy.link);
wl_global_destroy(list->global);
free(list);
}
struct wlr_ext_foreign_toplevel_list_v1 *wlr_ext_foreign_toplevel_list_v1_create(
struct wl_display *display, uint32_t version) {
assert(version <= FOREIGN_TOPLEVEL_LIST_V1_VERSION);
struct wlr_ext_foreign_toplevel_list_v1 *list = calloc(1, sizeof(*list));
if (!list) {
return NULL;
}
list->global = wl_global_create(display,
&ext_foreign_toplevel_list_v1_interface,
version, list,
foreign_toplevel_list_bind);
if (!list->global) {
free(list);
return NULL;
}
wl_signal_init(&list->events.destroy);
wl_list_init(&list->resources);
wl_list_init(&list->toplevels);
list->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &list->display_destroy);
return list;
}
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