Change workspace when mouse wheel is scrolled while hovering over the bar

1 files changed, 9 insertions, 1 deletions

diff --git a/swaybar/bar.c b/swaybar/bar.c
index c0aa85c7..82e136e4 100644
--- a/swaybar/bar.c
+++ b/swaybar/bar.c
@@ -89,6 +89,13 @@ static void mouse_button_notify(struct window *window, int x, int y, uint32_t bu
         }
 }
 
+static void mouse_scroll_notify(struct window *window, enum scroll_direction direction) {
+        sway_log(L_DEBUG, "Mouse wheel scrolled %s", direction == SCROLL_UP ? "up" : "down");
+
+        const char *workspace_name = direction == SCROLL_UP ? "prev_on_output" : "next_on_output";
+        ipc_send_workspace_command(workspace_name);
+}
+
 void bar_setup(struct bar *bar, const char *socket_path, const char *bar_id) {
         /* initialize bar with default values */
         bar_init(bar);
@@ -123,8 +130,9 @@ void bar_setup(struct bar *bar, const char *socket_path, const char *bar_id) {
                 /* set font */
                 bar_output->window->font = bar->config->font;
 
-                /* set font */
+                /* set mouse event callbacks */
                 bar_output->window->pointer_input.notify_button = mouse_button_notify;
+                bar_output->window->pointer_input.notify_scroll = mouse_scroll_notify;
 
                 /* set window height */
                 set_window_height(bar_output->window, bar->config->height);