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, 4 insertions, 4 deletions

diff --git a/sway/commands/gaps.c b/sway/commands/gaps.c
index 801fb179..3906eb70 100644
--- a/sway/commands/gaps.c
+++ b/sway/commands/gaps.c
@@ -43,7 +43,7 @@ struct cmd_results *cmd_gaps(int argc, char **argv) {
 			return cmd_results_new(CMD_INVALID, "gaps",
 				"gaps edge_gaps on|off|toggle");
 		}
-		arrange_and_commit(&root_container);
+		arrange_windows(&root_container);
 	} else {
 		int amount_idx = 0; // the current index in argv
 		enum gaps_op op = GAPS_OP_SET;
@@ -124,7 +124,7 @@ struct cmd_results *cmd_gaps(int argc, char **argv) {
 		if (amount_idx == 0) { // gaps <amount>
 			config->gaps_inner = val;
 			config->gaps_outer = val;
-			arrange_and_commit(&root_container);
+			arrange_windows(&root_container);
 			return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 		}
 		// Other variants. The middle-length variant (gaps inner|outer <amount>)
@@ -155,7 +155,7 @@ struct cmd_results *cmd_gaps(int argc, char **argv) {
 			} else {
 				config->gaps_outer = total;
 			}
-			arrange_and_commit(&root_container);
+			arrange_windows(&root_container);
 		} else {
 			struct sway_container *c =
 				config->handler_context.current_container;
@@ -169,7 +169,7 @@ struct cmd_results *cmd_gaps(int argc, char **argv) {
 				c->gaps_outer = total;
 			}
 
-			arrange_and_commit(c->parent ? c->parent : &root_container);
+			arrange_windows(c->parent ? c->parent : &root_container);
 		}
 	}