Allow users to customize the cursor on clients

This also sets the default size to 16 and documents all of the other
environment variables in use in sway(1).

1 files changed, 11 insertions, 1 deletions

diff --git a/wayland/window.c b/wayland/window.c
index 9bc0d4a2..3f48d39f 100644
--- a/wayland/window.c
+++ b/wayland/window.c
@@ -112,7 +112,17 @@ struct window *window_setup(struct registry *registry, uint32_t width, uint32_t
         get_next_buffer(window);
 
         if (registry->pointer) {
-                window->cursor.cursor_theme = wl_cursor_theme_load("default", 32, registry->shm); // TODO: let you customize this
+                char *cursor_theme = getenv("SWAY_CURSOR_THEME");
+                if (!cursor_theme) {
+                        cursor_theme = "default";
+                }
+                char *cursor_size = getenv("SWAY_CURSOR_SIZE");
+                if (!cursor_size) {
+                        cursor_size = "16";
+                }
+
+                window->cursor.cursor_theme = wl_cursor_theme_load(cursor_theme,
+                                atoi(cursor_size), registry->shm);
                 window->cursor.cursor = wl_cursor_theme_get_cursor(window->cursor.cursor_theme, "left_ptr");
                 window->cursor.surface = wl_compositor_create_surface(registry->compositor);