Handle views created after decoration mode is sent for xdg-shell

include/sway/decoration.h

@@ -5,9 +5,13 @@
 
 struct sway_server_decoration {
 	struct wlr_server_decoration *wlr_server_decoration;
+	struct wl_list link;
 
 	struct wl_listener destroy;
 	struct wl_listener mode;
 };
 
+struct sway_server_decoration *decoration_from_surface(
+	struct wlr_surface *surface);
+
 #endif

include/sway/server.h

@@ -52,6 +52,7 @@ struct sway_server {
 
 	struct wlr_server_decoration_manager *server_decoration_manager;
 	struct wl_listener server_decoration;
+	struct wl_list decorations; // sway_server_decoration::link
 
 	bool debug_txn_timings;
 

include/sway/tree/view.h

@@ -118,6 +118,8 @@ struct sway_view {
 struct sway_xdg_shell_v6_view {
 	struct sway_view view;
 
+	enum wlr_server_decoration_manager_mode deco_mode;
+
 	struct wl_listener commit;
 	struct wl_listener request_move;
 	struct wl_listener request_resize;
@@ -134,6 +136,8 @@ struct sway_xdg_shell_v6_view {
 struct sway_xdg_shell_view {
 	struct sway_view view;
 
+	enum wlr_server_decoration_manager_mode deco_mode;
+
 	struct wl_listener commit;
 	struct wl_listener request_move;
 	struct wl_listener request_resize;

sway/decoration.c

@@ -9,6 +9,8 @@ static void server_decoration_handle_destroy(struct wl_listener *listener,
 	struct sway_server_decoration *deco =
 		wl_container_of(listener, deco, destroy);
 	wl_list_remove(&deco->destroy.link);
+	wl_list_remove(&deco->mode.link);
+	wl_list_remove(&deco->link);
 	free(deco);
 }
 
@@ -18,9 +20,24 @@ static void server_decoration_handle_mode(struct wl_listener *listener,
 		wl_container_of(listener, deco, mode);
 	struct sway_view *view =
 		view_from_wlr_surface(deco->wlr_server_decoration->surface);
+	if (view == NULL || view->surface != deco->wlr_server_decoration->surface) {
+		return;
+	}
 
-	// TODO
-	wlr_log(WLR_ERROR, "%p %d", view, deco->wlr_server_decoration->mode);
+	switch (view->type) {
+	case SWAY_VIEW_XDG_SHELL_V6:;
+		struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
+			(struct sway_xdg_shell_v6_view *)view;
+		xdg_shell_v6_view->deco_mode = deco->wlr_server_decoration->mode;
+		break;
+	case SWAY_VIEW_XDG_SHELL:;
+		struct sway_xdg_shell_view *xdg_shell_view =
+			(struct sway_xdg_shell_view *)view;
+		xdg_shell_view->deco_mode = deco->wlr_server_decoration->mode;
+		break;
+	default:
+		break;
+	}
 }
 
 void handle_server_decoration(struct wl_listener *listener, void *data) {
@@ -38,4 +55,17 @@ void handle_server_decoration(struct wl_listener *listener, void *data) {
 
 	wl_signal_add(&wlr_deco->events.mode, &deco->mode);
 	deco->mode.notify = server_decoration_handle_mode;
+
+	wl_list_insert(&server.decorations, &deco->link);
+}
+
+struct sway_server_decoration *decoration_from_surface(
+		struct wlr_surface *surface) {
+	struct sway_server_decoration *deco;
+	wl_list_for_each(deco, &server.decorations, link) {
+		if (deco->wlr_server_decoration->surface == surface) {
+			return deco;
+		}
+	}
+	return NULL;
 }

sway/desktop/xdg_shell.c

@@ -6,6 +6,7 @@
 #include <wlr/types/wlr_xdg_shell.h>
 #include <wlr/util/edges.h>
 #include "log.h"
+#include "sway/decoration.h"
 #include "sway/input/input-manager.h"
 #include "sway/input/seat.h"
 #include "sway/server.h"
@@ -170,6 +171,15 @@ static bool wants_floating(struct sway_view *view) {
 		|| toplevel->parent;
 }
 
+static bool has_client_side_decorations(struct sway_view *view) {
+	struct sway_xdg_shell_view *xdg_shell_view =
+		xdg_shell_view_from_view(view);
+	if (xdg_shell_view == NULL) {
+		return true;
+	}
+	return xdg_shell_view->deco_mode != WLR_SERVER_DECORATION_MANAGER_MODE_SERVER;
+}
+
 static void for_each_surface(struct sway_view *view,
 		wlr_surface_iterator_func_t iterator, void *user_data) {
 	if (xdg_shell_view_from_view(view) == NULL) {
@@ -226,6 +236,7 @@ static const struct sway_view_impl view_impl = {
 	.set_tiled = set_tiled,
 	.set_fullscreen = set_fullscreen,
 	.wants_floating = wants_floating,
+	.has_client_side_decorations = has_client_side_decorations,
 	.for_each_surface = for_each_surface,
 	.for_each_popup = for_each_popup,
 	.close = _close,
@@ -357,6 +368,14 @@ static void handle_map(struct wl_listener *listener, void *data) {
 		view->natural_height = view->wlr_xdg_surface->surface->current.height;
 	}
 
+	struct sway_server_decoration *deco =
+		decoration_from_surface(xdg_surface->surface);
+	if (deco != NULL) {
+		xdg_shell_view->deco_mode = deco->wlr_server_decoration->mode;
+	} else {
+		xdg_shell_view->deco_mode = WLR_SERVER_DECORATION_MANAGER_MODE_CLIENT;
+	}
+
 	view_map(view, view->wlr_xdg_surface->surface);
 
 	if (xdg_surface->toplevel->client_pending.fullscreen) {

sway/server.c

@@ -19,7 +19,6 @@
 #include <wlr/types/wlr_xcursor_manager.h>
 #include <wlr/types/wlr_xdg_output.h>
 #include <wlr/util/log.h>
-// TODO WLR: make Xwayland optional
 #include "list.h"
 #include "sway/config.h"
 #include "sway/desktop/idle_inhibit_v1.h"
@@ -85,7 +84,6 @@ bool server_init(struct sway_server *server) {
 		&server->xdg_shell_surface);
 	server->xdg_shell_surface.notify = handle_xdg_shell_surface;
 
-	// TODO make xwayland optional
 #ifdef HAVE_XWAYLAND
 	server->xwayland.wlr_xwayland =
 		wlr_xwayland_create(server->wl_display, server->compositor, true);
@@ -117,6 +115,7 @@ bool server_init(struct sway_server *server) {
 	wl_signal_add(&server->server_decoration_manager->events.new_decoration,
 		&server->server_decoration);
 	server->server_decoration.notify = handle_server_decoration;
+	wl_list_init(&server->decorations);
 
 	wlr_linux_dmabuf_v1_create(server->wl_display, renderer);
 	wlr_export_dmabuf_manager_v1_create(server->wl_display);