From 6a06c3d9073507168df370f9f58642ce2eae1825 Mon Sep 17 00:00:00 2001
From: emersion <contact@emersion.fr>
Date: Mon, 20 Nov 2017 18:05:24 +0100
Subject: [PATCH] Fix segfault when closing xwayland views

---
 rootston/desktop.c      | 3 ---
 rootston/wl_shell.c     | 2 ++
 rootston/xdg_shell_v6.c | 2 ++
 rootston/xwayland.c     | 6 ++++++
 4 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/rootston/desktop.c b/rootston/desktop.c
index cf5a8cdc..65730807 100644
--- a/rootston/desktop.c
+++ b/rootston/desktop.c
@@ -181,15 +181,12 @@ bool view_center(struct roots_view *view) {
 void view_destroy(struct roots_view *view) {
 	wl_signal_emit(&view->events.destroy, view);
 
-	wl_list_remove(&view->link);
 	free(view);
 }
 
 void view_init(struct roots_view *view, struct roots_desktop *desktop) {
 	view->desktop = desktop;
 	wl_signal_init(&view->events.destroy);
-
-	wl_list_insert(&desktop->views, &view->link);
 }
 
 void view_setup(struct roots_view *view) {
diff --git a/rootston/wl_shell.c b/rootston/wl_shell.c
index 7359c878..d0f5989b 100644
--- a/rootston/wl_shell.c
+++ b/rootston/wl_shell.c
@@ -83,6 +83,7 @@ static void handle_destroy(struct wl_listener *listener, void *data) {
 	wl_list_remove(&roots_surface->request_set_maximized.link);
 	wl_list_remove(&roots_surface->set_state.link);
 	wl_list_remove(&roots_surface->surface_commit.link);
+	wl_list_remove(&roots_surface->view->link);
 	view_destroy(roots_surface->view);
 	free(roots_surface);
 }
@@ -131,6 +132,7 @@ void handle_wl_shell_surface(struct wl_listener *listener, void *data) {
 	view->close = close;
 	roots_surface->view = view;
 	view_init(view, desktop);
+	wl_list_insert(&desktop->views, &view->link);
 
 	view_setup(view);
 
diff --git a/rootston/xdg_shell_v6.c b/rootston/xdg_shell_v6.c
index 656231c7..ea19753b 100644
--- a/rootston/xdg_shell_v6.c
+++ b/rootston/xdg_shell_v6.c
@@ -165,6 +165,7 @@ static void handle_destroy(struct wl_listener *listener, void *data) {
 	wl_list_remove(&roots_xdg_surface->destroy.link);
 	wl_list_remove(&roots_xdg_surface->request_move.link);
 	wl_list_remove(&roots_xdg_surface->request_resize.link);
+	wl_list_remove(&roots_xdg_surface->view->link);
 	view_destroy(roots_xdg_surface->view);
 	free(roots_xdg_surface);
 }
@@ -220,6 +221,7 @@ void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
 	view->close = close;
 	roots_surface->view = view;
 	view_init(view, desktop);
+	wl_list_insert(&desktop->views, &view->link);
 
 	view_setup(view);
 }
diff --git a/rootston/xwayland.c b/rootston/xwayland.c
index c92c424b..dfa602b1 100644
--- a/rootston/xwayland.c
+++ b/rootston/xwayland.c
@@ -95,6 +95,8 @@ static void maximize(struct roots_view *view, bool maximized) {
 static void handle_destroy(struct wl_listener *listener, void *data) {
 	struct roots_xwayland_surface *roots_surface =
 		wl_container_of(listener, roots_surface, destroy);
+	struct wlr_xwayland_surface *xwayland_surface =
+		roots_surface->view->xwayland_surface;
 	wl_list_remove(&roots_surface->destroy.link);
 	wl_list_remove(&roots_surface->request_configure.link);
 	wl_list_remove(&roots_surface->request_move.link);
@@ -102,6 +104,9 @@ static void handle_destroy(struct wl_listener *listener, void *data) {
 	wl_list_remove(&roots_surface->request_maximize.link);
 	wl_list_remove(&roots_surface->map_notify.link);
 	wl_list_remove(&roots_surface->unmap_notify.link);
+	if (xwayland_surface->mapped) {
+		wl_list_remove(&roots_surface->view->link);
+	}
 	view_destroy(roots_surface->view);
 	free(roots_surface);
 }
@@ -243,6 +248,7 @@ void handle_xwayland_surface(struct wl_listener *listener, void *data) {
 	view->close = close;
 	roots_surface->view = view;
 	view_init(view, desktop);
+	wl_list_insert(&desktop->views, &view->link);
 
 	if (!surface->override_redirect) {
 		view_setup(view);