Implement resizing tiled containers via cursor

* The OP_RESIZE seat operation has been renamed to OP_RESIZE_FLOATING,
and OP_RESIZE_TILING has been introduced.
* Similar to the above, seat_begin_resize and handle_resize_motion have
been renamed and tiling variants introduced.
* resize.c's resize_tiled has to be used, so container_resize_tiled has
been introduced in resize.c to allow external code to call it.

1 files changed, 9 insertions, 0 deletions

diff --git a/common/list.c b/common/list.c
index 66d52f70..a3a22d8f 100644
--- a/common/list.c
+++ b/common/list.c
@@ -77,6 +77,15 @@ int list_seq_find(list_t *list, int compare(const void *item, const void *data),
 	return -1;
 }
 
+int list_find(list_t *list, void *item) {
+	for (int i = 0; i < list->length; i++) {
+		if (list->items[i] == item) {
+			return i;
+		}
+	}
+	return -1;
+}
+
 void list_swap(list_t *list, int src, int dest) {
 	void *tmp = list->items[src];
 	list->items[src] = list->items[dest];