tree_restore: Check croot

[i3/i3] / src / tree.c

diff --git a/src/tree.c b/src/tree.c
index 710bb655f6ab39254f0187884d69f565e718f9be..5a7c5dfa3c7f37be659b0e4b0a7025ef22fdbef8 100644 (file)
--- a/src/tree.c
+++ b/src/tree.c
@@ -92,6 +92,10 @@ bool tree_restore(const char *path, xcb_get_geometry_reply_t *geometry) {
 
     DLOG("appended tree, using new root\n");
     croot = TAILQ_FIRST(&(croot->nodes_head));
+    if (!croot) {
+        /* tree_append_json failed. Continuing here would segfault. */
+        goto out;
+    }
     DLOG("new root = %p\n", croot);
     Con *out = TAILQ_FIRST(&(croot->nodes_head));
     DLOG("out = %p\n", out);
@@ -330,6 +334,13 @@ bool tree_close_internal(Con *con, kill_window_t kill_window, bool dont_kill_par
         DLOG("parent container killed\n");
     }
 
+    if (ws == con) {
+        DLOG("Closing a workspace container, updating EWMH atoms\n");
+        ewmh_update_number_of_desktops();
+        ewmh_update_desktop_names();
+        ewmh_update_wm_desktop();
+    }
+
     con_free(con);
 
     /* in the case of floating windows, we already focused another container
@@ -344,12 +355,12 @@ bool tree_close_internal(Con *con, kill_window_t kill_window, bool dont_kill_par
             DLOG("focusing %p / %s\n", next, next->name);
             if (next->type == CT_DOCKAREA) {
                 /* Instead of focusing the dockarea, we need to restore focus to the workspace */
-                con_focus(con_descend_focused(output_get_content(next->parent)));
+                con_activate(con_descend_focused(output_get_content(next->parent)));
             } else {
                 if (!force_set_focus && con != focused)
                     DLOG("not changing focus, the container was not focused before\n");
                 else
-                    con_focus(next);
+                    con_activate(next);
             }
         } else {
             DLOG("not focusing because we're not killing anybody\n");
@@ -433,7 +444,7 @@ bool level_up(void) {
     /* Skip over floating containers and go directly to the grandparent
      * (which should always be a workspace) */
     if (focused->parent->type == CT_FLOATING_CON) {
-        con_focus(focused->parent->parent);
+        con_activate(focused->parent->parent);
         return true;
     }
 
@@ -444,7 +455,7 @@ bool level_up(void) {
         ELOG("'focus parent': Focus is already on the workspace, cannot go higher than that.\n");
         return false;
     }
-    con_focus(focused->parent);
+    con_activate(focused->parent);
     return true;
 }
 
@@ -469,7 +480,7 @@ bool level_down(void) {
             next = TAILQ_FIRST(&(next->focus_head));
     }
 
-    con_focus(next);
+    con_activate(next);
     return true;
 }
 
@@ -560,15 +571,21 @@ static bool _tree_next(Con *con, char way, orientation_t orientation, bool wrap)
         if (!workspace)
             return false;
 
-        Con *focus = con_descend_tiling_focused(workspace);
-        if (focus == workspace) {
-            focus = con_descend_focused(workspace);
+        /* Use descend_focused first to give higher priority to floating or
+         * tiling fullscreen containers. */
+        Con *focus = con_descend_focused(workspace);
+        if (focus->fullscreen_mode == CF_NONE) {
+            Con *focus_tiling = con_descend_tiling_focused(workspace);
+            /* If descend_tiling returned a workspace then focus is either a
+             * floating container or the same workspace. */
+            if (focus_tiling != workspace) {
+                focus = focus_tiling;
+            }
         }
 
-        if (focus) {
-            con_focus(focus);
-            x_set_warp_to(&(focus->rect));
-        }
+        workspace_show(workspace);
+        con_activate(focus);
+        x_set_warp_to(&(focus->rect));
         return true;
     }
 
@@ -605,7 +622,7 @@ static bool _tree_next(Con *con, char way, orientation_t orientation, bool wrap)
             TAILQ_INSERT_HEAD(&(parent->floating_head), last, floating_windows);
         }
 
-        con_focus(con_descend_focused(next));
+        con_activate(con_descend_focused(next));
         return true;
     }
 
@@ -654,7 +671,7 @@ static bool _tree_next(Con *con, char way, orientation_t orientation, bool wrap)
     /* 3: focus choice comes in here. at the moment we will go down
      * until we find a window */
     /* TODO: check for window, atm we only go down as far as possible */
-    con_focus(con_descend_focused(next));
+    con_activate(con_descend_focused(next));
     return true;
 }