input/cursor: make cursor rebasing cursor type-agnostic

This commit refactors `cursor_rebase` into `cursor_update_image`, and
moves sending pointer events to the two existing call sites. This will
enable this code to be reused for tablets.

Refs #5232

1 files changed, 21 insertions, 0 deletions

diff --git a/sway/input/cursor.c b/sway/input/cursor.c
index a28da999..f7a3c54e 100644
--- a/sway/input/cursor.c
+++ b/sway/input/cursor.c
@@ -212,6 +212,27 @@ void cursor_rebase_all(void) {
         }
 }
 
+void cursor_update_image(struct sway_cursor *cursor,
+                struct sway_node *node) {
+        if (node && node->type == N_CONTAINER) {
+                // Try a node's resize edge
+                enum wlr_edges edge = find_resize_edge(node->sway_container, NULL, cursor);
+                if (edge == WLR_EDGE_NONE) {
+                        cursor_set_image(cursor, "left_ptr", NULL);
+                } else if (container_is_floating(node->sway_container)) {
+                        cursor_set_image(cursor, wlr_xcursor_get_resize_name(edge), NULL);
+                } else {
+                        if (edge & (WLR_EDGE_LEFT | WLR_EDGE_RIGHT)) {
+                                cursor_set_image(cursor, "col-resize", NULL);
+                        } else {
+                                cursor_set_image(cursor, "row-resize", NULL);
+                        }
+                }
+        } else {
+                cursor_set_image(cursor, "left_ptr", NULL);
+        }
+}
+
 static void cursor_hide(struct sway_cursor *cursor) {
         wlr_cursor_set_image(cursor->cursor, NULL, 0, 0, 0, 0, 0, 0);
         cursor->hidden = true;