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implement ext-foreign-toplevel-list

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This is used by lswt which lists toplevel ids and titles.
keyd-application-mapper will also support it hopefully.

This will also be needed to support screenshare of single windows
(https://codeberg.org/dwl/dwl/pulls/1157).

Co-authored-by: Zuki Air <zukirust@gmail.com>
This commit is contained in:
Guido Cella
2026-09-12 08:02:27 +02:00
committed by Guido Cella
co-authored by Zuki Air
parent 0a6dc6d548
commit 721f70ea8b
1 changed files with 27 additions and 0 deletions
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dwl.c
+27
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@@ -27,6 +27,7 @@
#include <wlr/types/wlr_ext_data_control_v1.h>
#include <wlr/types/wlr_ext_image_capture_source_v1.h>
#include <wlr/types/wlr_ext_image_copy_capture_v1.h>
#include <wlr/types/wlr_ext_foreign_toplevel_list_v1.h>
#include <wlr/types/wlr_fractional_scale_v1.h>
#include <wlr/types/wlr_gamma_control_v1.h>
#include <wlr/types/wlr_idle_inhibit_v1.h>
@@ -119,6 +120,7 @@ typedef struct {
struct wlr_xwayland_surface *xwayland;
} surface;
struct wlr_xdg_toplevel_decoration_v1 *decoration;
struct wlr_ext_foreign_toplevel_handle_v1 *foreign_toplevel_handle;
struct wl_listener commit;
struct wl_listener map;
struct wl_listener maximize;
@@ -383,6 +385,7 @@ static struct wlr_virtual_keyboard_manager_v1 *virtual_keyboard_mgr;
static struct wlr_virtual_pointer_manager_v1 *virtual_pointer_mgr;
static struct wlr_cursor_shape_manager_v1 *cursor_shape_mgr;
static struct wlr_output_power_manager_v1 *power_mgr;
static struct wlr_ext_foreign_toplevel_list_v1 *foreign_toplevel_list;
static struct wlr_pointer_constraints_v1 *pointer_constraints;
static struct wlr_relative_pointer_manager_v1 *relative_pointer_mgr;
@@ -1788,6 +1791,11 @@ mapnotify(struct wl_listener *listener, void *data)
Monitor *m;
int i;
struct wlr_ext_foreign_toplevel_handle_v1_state foreign_toplevel_state = {
.app_id = client_get_appid(c),
.title = client_get_title(c),
};
/* Create scene tree for this client and its border */
c->scene = client_surface(c)->data = wlr_scene_tree_create(layers[LyrTile]);
/* Enabled later by a call to arrange() */
@@ -1827,6 +1835,10 @@ mapnotify(struct wl_listener *listener, void *data)
wl_list_insert(&clients, &c->link);
wl_list_insert(&fstack, &c->flink);
c->foreign_toplevel_handle = wlr_ext_foreign_toplevel_handle_v1_create(
foreign_toplevel_list, &foreign_toplevel_state);
c->foreign_toplevel_handle->data = c;
/* Set initial monitor, tags, floating status, and focus:
* we always consider floating, clients that have parent and thus
* we set the same tags and monitor as its parent.
@@ -2617,6 +2629,8 @@ setup(void)
(float [4]){0.1f, 0.1f, 0.1f, 1.0f});
wlr_scene_node_set_enabled(&locked_bg->node, 0);
foreign_toplevel_list = wlr_ext_foreign_toplevel_list_v1_create(dpy,1);
/* Use decoration protocols to negotiate server-side decorations */
wlr_server_decoration_manager_set_default_mode(
wlr_server_decoration_manager_create(dpy),
@@ -2880,6 +2894,10 @@ unmapnotify(struct wl_listener *listener, void *data)
wl_list_remove(&c->flink);
}
if (c->foreign_toplevel_handle) {
wlr_ext_foreign_toplevel_handle_v1_destroy(c->foreign_toplevel_handle);
c->foreign_toplevel_handle = NULL;
}
wlr_scene_node_destroy(&c->scene->node);
client_surface(c)->data = NULL;
printstatus();
@@ -3001,6 +3019,15 @@ updatetitle(struct wl_listener *listener, void *data)
Client *c = wl_container_of(listener, c, set_title);
if (c == focustop(c->mon))
printstatus();
if (c->foreign_toplevel_handle) {
struct wlr_ext_foreign_toplevel_handle_v1_state foreign_toplevel_state = {
.app_id = client_get_appid(c),
.title = client_get_title(c),
};
wlr_ext_foreign_toplevel_handle_v1_update_state(c->foreign_toplevel_handle,
&foreign_toplevel_state);
}
}
void