1 files changed, 24 insertions, 4 deletions

diff --git a/sway/commands/resize.c b/sway/commands/resize.c
index 0c9af12d..7ff4ef7b 100644
--- a/sway/commands/resize.c
+++ b/sway/commands/resize.c
@@ -172,9 +172,19 @@ void container_resize_tiled(struct sway_container *con,
                 if (prev && prev->width - sibling_amount < MIN_SANE_W) {
                         return;
                 }
+                if (con->child_total_width <= 0) {
+                        return;
+                }
+
+                // We're going to resize so snap all the width fractions to full pixels
+                // to avoid rounding issues
+                list_t *siblings = container_get_siblings(con);
+                for (int i = 0; i < siblings->length; ++i) {
+                        struct sway_container *con = siblings->items[i];
+                        con->width_fraction = con->width / con->child_total_width;
+                }
 
-                double amount_fraction =
-                        ((double)amount / con->width) * con->width_fraction;
+                double amount_fraction = (double)amount / con->child_total_width;
                 double sibling_amount_fraction =
                         prev ? amount_fraction / 2.0 : amount_fraction;
 
@@ -193,9 +203,19 @@ void container_resize_tiled(struct sway_container *con,
                 if (prev && prev->height - sibling_amount < MIN_SANE_H) {
                         return;
                 }
+                if (con->child_total_height <= 0) {
+                        return;
+                }
+
+                // We're going to resize so snap all the height fractions to full pixels
+                // to avoid rounding issues
+                list_t *siblings = container_get_siblings(con);
+                for (int i = 0; i < siblings->length; ++i) {
+                        struct sway_container *con = siblings->items[i];
+                        con->height_fraction = con->height / con->child_total_height;
+                }
 
-                double amount_fraction =
-                        ((double)amount / con->height) * con->height_fraction;
+                double amount_fraction = (double)amount / con->child_total_height;
                 double sibling_amount_fraction =
                         prev ? amount_fraction / 2.0 : amount_fraction;