fix crashes with windows changing their title after unmapnotify is called

this commit means that in the xdg-desktop-portal-wlr picker it should
show up to date title names rather then the one the client spawned with

config.mk

@@ -8,8 +8,8 @@ PREFIX = /usr/local
 MANDIR = $(PREFIX)/share/man
 DATADIR = $(PREFIX)/share
 
-WLR_INCS = `$(PKG_CONFIG) --cflags wlroots-0.19`
-WLR_LIBS = `$(PKG_CONFIG) --libs wlroots-0.19`
+WLR_INCS = `$(PKG_CONFIG) --cflags wlroots-0.20`
+WLR_LIBS = `$(PKG_CONFIG) --libs wlroots-0.20`
 
 # Allow using an alternative wlroots installation
 # This has to have all the includes required by wlroots, e.g:

dwl.c

@@ -126,7 +126,11 @@ typedef struct {
 	struct wl_listener commit;
     struct wlr_scene *image_capture_scene;
     struct wlr_ext_image_capture_source_v1 *image_capture_source;
-    struct wlr_scene_tree *image_capture_tree;
+    struct wlr_ext_foreign_toplevel_handle_v1 *ext_foreign_toplevel;
+    union {
+        struct wlr_scene_tree *image_capture_tree;
+        struct wlr_scene_surface *image_capture_scene_surface; 
+    } capture;
 	struct wl_listener map;
 	struct wl_listener maximize;
 	struct wl_listener unmap;
@@ -146,7 +150,6 @@ typedef struct {
 	uint32_t tags;
 	int isfloating, isurgent, isfullscreen;
 	uint32_t resize; /* configure serial of a pending resize */
-    struct wlr_ext_foreign_toplevel_handle_v1 *ext_foreign_toplevel;
 } Client;
 
 typedef struct {
@@ -1773,7 +1776,13 @@ mapnotify(struct wl_listener *listener, void *data)
     c->image_capture_scene = wlr_scene_create();
     c->ext_foreign_toplevel = wlr_ext_foreign_toplevel_handle_v1_create(foreign_toplevel_list,&foreign_toplevel_state);
     c->ext_foreign_toplevel->data = c;
-    c->image_capture_tree = wlr_scene_xdg_surface_create(&c->image_capture_scene->tree, c->surface.xdg);
+    if (c->type == XDGShell) {
+        c->capture.image_capture_tree = wlr_scene_xdg_surface_create(&c->image_capture_scene->tree, c->surface.xdg);
+#ifdef XWAYLAND
+    } else { /* xwayland */
+        c->capture.image_capture_scene_surface = wlr_scene_surface_create(&c->image_capture_scene->tree, c->surface.xwayland->surface);
+#endif
+    }
 
 
 	client_get_geometry(c, &c->geom);
@@ -2875,9 +2884,16 @@ unmapnotify(struct wl_listener *listener, void *data)
 		setmon(c, NULL, 0);
 		wl_list_remove(&c->flink);
 	}
-    if (c->ext_foreign_toplevel) {
+    if (c->ext_foreign_toplevel != NULL) {
         wlr_ext_foreign_toplevel_handle_v1_destroy(c->ext_foreign_toplevel);
+        c->ext_foreign_toplevel = NULL;
     }
+#ifdef XWAYLAND
+    if (c->type != XDGShell && c->capture.image_capture_scene_surface) {
+        wlr_scene_node_destroy(&c->capture.image_capture_scene_surface->buffer->node);
+        c->capture.image_capture_scene_surface = NULL;
+    }
+#endif
 
     wlr_scene_node_destroy(&c->image_capture_scene->tree.node);
 	wlr_scene_node_destroy(&c->scene->node);
@@ -2997,6 +3013,13 @@ updatetitle(struct wl_listener *listener, void *data)
 	Client *c = wl_container_of(listener, c, set_title);
 	if (c == focustop(c->mon))
 		printstatus();
+    if (c->ext_foreign_toplevel != NULL) {
+        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->ext_foreign_toplevel,&foreign_toplevel_state);
+    }
 }
 
 void