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xdg-{shell,decoration}: improve events

Browse source 
This commit changes the behavior of `new_*` signals to better match
their names (see https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3608).
wlr_xdg_shell.events.new_surface is now emitted when an xdg_surface is
created, and wlr_xdg_shell.events.new_{toplevel,popup} events are
introduced to get notified when an xdg_{toplevel,popup} is created.
Same applies to
`wlr_xdg_decoration_manager_v1.events.new_toplevel_decoration`. As a
result, wlr_xdg_surface.added and wlr_xdg_toplevel_decoration_v1.added
are removed, as we no longer need to track whether the corresponding
event was emitted.

Additionally, this commit changes the behavior of
wlr_xdg_surface.events.destroy: it is now emitted when the xdg_surface
is destroyed, as the name suggests.
wlr_xdg_{toplevel,popup}.events.destroy events are added to get
notified when an xdg_{toplevel,popup} is destroyed.
This commit is contained in:
Kirill Primak 2023-09-05 16:14:25 +03:00
parent d61ec694b3
commit c85838892d
12 changed files with 107 additions and 134 deletions
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97
tinywl/tinywl.c
View file

@ -42,7 +42,8 @@ struct tinywl_server {
struct wlr_scene_output_layout *scene_layout;
struct wlr_xdg_shell *xdg_shell;
struct wl_listener new_xdg_surface;
struct wl_listener new_xdg_toplevel;
struct wl_listener new_xdg_popup;
struct wl_list toplevels;
struct wlr_cursor *cursor;
@ -767,58 +768,53 @@ static void xdg_toplevel_request_fullscreen(
wlr_xdg_surface_schedule_configure(toplevel->xdg_toplevel->base);
}
static void server_new_xdg_surface(struct wl_listener *listener, void *data) {
/* This event is raised when wlr_xdg_shell receives a new xdg surface from a
* client, either a toplevel (application window) or popup. */
struct tinywl_server *server =
wl_container_of(listener, server, new_xdg_surface);
struct wlr_xdg_surface *xdg_surface = data;
static void server_new_xdg_toplevel(struct wl_listener *listener, void *data) {
/* This event is raised when a client creates a new toplevel (application window). */
struct tinywl_server *server = wl_container_of(listener, server, new_xdg_toplevel);
struct wlr_xdg_toplevel *xdg_toplevel = data;
/* Allocate a tinywl_toplevel for this surface */
struct tinywl_toplevel *toplevel = calloc(1, sizeof(*toplevel));
toplevel->server = server;
toplevel->xdg_toplevel = xdg_toplevel;
toplevel->scene_tree =
wlr_scene_xdg_surface_create(&toplevel->server->scene->tree, xdg_toplevel->base);
toplevel->scene_tree->node.data = toplevel;
xdg_toplevel->base->data = toplevel->scene_tree;
/* Listen to the various events it can emit */
toplevel->map.notify = xdg_toplevel_map;
wl_signal_add(&xdg_toplevel->base->surface->events.map, &toplevel->map);
toplevel->unmap.notify = xdg_toplevel_unmap;
wl_signal_add(&xdg_toplevel->base->surface->events.unmap, &toplevel->unmap);
toplevel->destroy.notify = xdg_toplevel_destroy;
wl_signal_add(&xdg_toplevel->events.destroy, &toplevel->destroy);
/* cotd */
toplevel->request_move.notify = xdg_toplevel_request_move;
wl_signal_add(&xdg_toplevel->events.request_move, &toplevel->request_move);
toplevel->request_resize.notify = xdg_toplevel_request_resize;
wl_signal_add(&xdg_toplevel->events.request_resize, &toplevel->request_resize);
toplevel->request_maximize.notify = xdg_toplevel_request_maximize;
wl_signal_add(&xdg_toplevel->events.request_maximize, &toplevel->request_maximize);
toplevel->request_fullscreen.notify = xdg_toplevel_request_fullscreen;
wl_signal_add(&xdg_toplevel->events.request_fullscreen, &toplevel->request_fullscreen);
}
static void server_new_xdg_popup(struct wl_listener *listener, void *data) {
/* This event is raised when a client creates a new popup. */
struct wlr_xdg_popup *xdg_popup = data;
/* We must add xdg popups to the scene graph so they get rendered. The
* wlroots scene graph provides a helper for this, but to use it we must
* provide the proper parent scene node of the xdg popup. To enable this,
* we always set the user data field of xdg_surfaces to the corresponding
* scene node. */
if (xdg_surface->role == WLR_XDG_SURFACE_ROLE_POPUP) {
struct wlr_xdg_surface *parent =
wlr_xdg_surface_try_from_wlr_surface(xdg_surface->popup->parent);
assert(parent != NULL);
struct wlr_scene_tree *parent_tree = parent->data;
xdg_surface->data = wlr_scene_xdg_surface_create(
parent_tree, xdg_surface);
return;
}
assert(xdg_surface->role == WLR_XDG_SURFACE_ROLE_TOPLEVEL);
/* Allocate a tinywl_toplevel for this surface */
struct tinywl_toplevel *toplevel = calloc(1, sizeof(*toplevel));
toplevel->server = server;
toplevel->xdg_toplevel = xdg_surface->toplevel;
toplevel->scene_tree = wlr_scene_xdg_surface_create(
&toplevel->server->scene->tree, toplevel->xdg_toplevel->base);
toplevel->scene_tree->node.data = toplevel;
xdg_surface->data = toplevel->scene_tree;
/* Listen to the various events it can emit */
toplevel->map.notify = xdg_toplevel_map;
wl_signal_add(&xdg_surface->surface->events.map, &toplevel->map);
toplevel->unmap.notify = xdg_toplevel_unmap;
wl_signal_add(&xdg_surface->surface->events.unmap, &toplevel->unmap);
toplevel->destroy.notify = xdg_toplevel_destroy;
wl_signal_add(&xdg_surface->events.destroy, &toplevel->destroy);
/* cotd */
struct wlr_xdg_toplevel *xdg_toplevel = xdg_surface->toplevel;
toplevel->request_move.notify = xdg_toplevel_request_move;
wl_signal_add(&xdg_toplevel->events.request_move, &toplevel->request_move);
toplevel->request_resize.notify = xdg_toplevel_request_resize;
wl_signal_add(&xdg_toplevel->events.request_resize, &toplevel->request_resize);
toplevel->request_maximize.notify = xdg_toplevel_request_maximize;
wl_signal_add(&xdg_toplevel->events.request_maximize,
&toplevel->request_maximize);
toplevel->request_fullscreen.notify = xdg_toplevel_request_fullscreen;
wl_signal_add(&xdg_toplevel->events.request_fullscreen,
&toplevel->request_fullscreen);
struct wlr_xdg_surface *parent = wlr_xdg_surface_try_from_wlr_surface(xdg_popup->parent);
assert(parent != NULL);
struct wlr_scene_tree *parent_tree = parent->data;
xdg_popup->base->data = wlr_scene_xdg_surface_create(parent_tree, xdg_popup->base);
}
int main(int argc, char *argv[]) {
@ -914,9 +910,10 @@ int main(int argc, char *argv[]) {
*/
wl_list_init(&server.toplevels);
server.xdg_shell = wlr_xdg_shell_create(server.wl_display, 3);
server.new_xdg_surface.notify = server_new_xdg_surface;
wl_signal_add(&server.xdg_shell->events.new_surface,
&server.new_xdg_surface);
server.new_xdg_toplevel.notify = server_new_xdg_toplevel;
wl_signal_add(&server.xdg_shell->events.new_toplevel, &server.new_xdg_toplevel);
server.new_xdg_popup.notify = server_new_xdg_popup;
wl_signal_add(&server.xdg_shell->events.new_popup, &server.new_xdg_popup);
/*
* Creates a cursor, which is a wlroots utility for tracking the cursor