Simplify transactions by utilising a dirty flag on containers

This PR changes the way we handle transactions to a more simple method.
The new method is to mark containers as dirty from low level code
(eg. arranging, or container_destroy, and eventually seat_set_focus),
then call transaction_commit_dirty which picks up those containers and
runs them through a transaction. The old methods of using transactions
(arrange_and_commit, or creating one manually) are now no longer
possible.

The highest-level code (execute_command and view implementation
handlers) will call transaction_commit_dirty, so most other code just
needs to set containers as dirty. This is done by arranging, but can
also be done by calling container_set_dirty.

1 files changed, 2 insertions, 20 deletions

diff --git a/include/sway/tree/arrange.h b/include/sway/tree/arrange.h
index 58235642..d6abcc81 100644
--- a/include/sway/tree/arrange.h
+++ b/include/sway/tree/arrange.h
@@ -11,26 +11,8 @@ void remove_gaps(struct sway_container *c);
 void add_gaps(struct sway_container *c);
 
 /**
- * Arrange layout for all the children of the given container, and add them to
- * the given transaction.
- *
- * Use this function if you need to arrange multiple sections of the tree in one
- * transaction.
- *
- * You must set the desired state of the container before calling
- * arrange_windows, then don't change any state-tracked properties in the
- * container until you've called transaction_commit.
+ * Arrange layout for all the children of the given container.
  */
-void arrange_windows(struct sway_container *container,
-                struct sway_transaction *transaction);
-
-/**
- * Arrange layout for the given container and commit the transaction.
- *
- * This function is a wrapper around arrange_windows, and handles creating and
- * committing the transaction for you. Use this function if you're only doing
- * one arrange operation.
- */
-void arrange_and_commit(struct sway_container *container);
+void arrange_windows(struct sway_container *container);
 
 #endif