Implement hide_edge_borders smart (like in i3 4.13)

3 files changed, 11 insertions, 1 deletions

diff --git a/include/sway/config.h b/include/sway/config.h
index 4a14cd36..febde63d 100644
--- a/include/sway/config.h
+++ b/include/sway/config.h
@@ -178,7 +178,8 @@ enum edge_border_types {
         E_NONE,         /**< Don't hide edge borders */
         E_VERTICAL,     /**< hide vertical edge borders */
         E_HORIZONTAL,   /**< hide horizontal edge borders */
-        E_BOTH          /**< hide vertical and horizontal edge borders */
+        E_BOTH,         /**< hide vertical and horizontal edge borders */
+        E_SMART         /**< hide both if precisely one window is present in workspace */
 };
 
 enum command_context {
diff --git a/sway/commands/hide_edge_borders.c b/sway/commands/hide_edge_borders.c
index 0be940c1..cb4f052d 100644
--- a/sway/commands/hide_edge_borders.c
+++ b/sway/commands/hide_edge_borders.c
@@ -15,6 +15,8 @@ struct cmd_results *cmd_hide_edge_borders(int argc, char **argv) {
                 config->hide_edge_borders = E_HORIZONTAL;
         } else if (strcasecmp(argv[0], "both") == 0) {
                 config->hide_edge_borders = E_BOTH;
+        } else if (strcasecmp(argv[0], "smart") == 0) {
+                config->hide_edge_borders = E_SMART;
         } else {
                 return cmd_results_new(CMD_INVALID, "hide_edge_borders",
                                 "Expected 'hide_edge_borders <none|vertical|horizontal|both>'");
diff --git a/sway/layout.c b/sway/layout.c
index ea4a680d..bb37a360 100644
--- a/sway/layout.c
+++ b/sway/layout.c
@@ -665,6 +665,13 @@ void update_geometry(swayc_t *container) {
                                         border_bottom = 0;
                                 }
                         }
+
+                        if (config->hide_edge_borders == E_SMART && workspace->children->length == 1) {
+                                border_top = 0;
+                                border_bottom = 0;
+                                border_left = 0;
+                                border_right = 0;
+                        }
                 }
 
                 int title_bar_height = config->font_height + 4; //borders + padding