Warp cursor when changing workspace.

include/xcb.h

@@ -152,4 +152,10 @@ void xcb_set_window_rect(xcb_connection_t *conn, xcb_window_t window, Rect r);
 
 bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom);
 
+/**
+ * Moves the mouse pointer into the middle of rect.
+ *
+ */
+void xcb_warp_pointer_rect(xcb_connection_t *conn, Rect *rect);
+
 #endif

src/workspace.c

@@ -217,10 +217,19 @@ void workspace_show(const char *num) {
         }
     }
 
+    /* Memorize current output */
+    Con *old_output = con_get_output(focused);
+
     con_focus(next);
     workspace->fullscreen_mode = CF_OUTPUT;
     LOG("focused now = %p / %s\n", focused, focused->name);
 
+    /* Set mouse pointer */
+    Con *new_output = con_get_output(focused);
+    if (old_output != new_output) {
+       xcb_warp_pointer_rect(conn, &next->rect);
+    }
+
     /* Update the EWMH hints */
     if (changed_num_workspaces)
         ewmh_update_workarea();

src/xcb.c

@@ -361,3 +361,13 @@ bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom) {
     return false;
 
 }
+
+/**
+ * Moves the mouse pointer into the middle of rect.
+ *
+ */
+void xcb_warp_pointer_rect(xcb_connection_t *conn, Rect *rect) {
+    xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0,
+        rect->x + (rect->width / 2),
+        rect->y + (rect->height / 2));
+}