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#ifndef _SWAY_TRANSACTION_H
#define _SWAY_TRANSACTION_H
#include <stdint.h>
/**
* Transactions enable us to perform atomic layout updates.
*
* A transaction contains a list of containers and their new state.
* A state might contain a new size, or new border settings, or new parent/child
* relationships.
*
* Committing a transaction makes sway notify of all the affected clients with
* their new sizes. We then wait for all the views to respond with their new
* surface sizes. When all are ready, or when a timeout has passed, we apply the
* updates all at the same time.
*
* When we want to make adjustments to the layout, we change the pending state
* in containers, mark them as dirty and call transaction_commit_dirty(). This
* create and commits a transaction from the dirty containers.
*/
struct sway_transaction_instruction;
struct sway_view;
/**
* Find all dirty containers, create and commit a transaction containing them,
* and unmark them as dirty.
*/
void transaction_commit_dirty(void);
/*
* Same as transaction_commit_dirty, but signalling that this is a
* client-initiated change has already taken effect.
*/
void transaction_commit_dirty_client(void);
/**
* Notify the transaction system that a view is ready for the new layout.
*
* When all views in the transaction are ready, the layout will be applied.
*/
void transaction_notify_view_ready_by_serial(struct sway_view *view,
uint32_t serial);
/**
* Notify the transaction system that a view is ready for the new layout, but
* identifying the instruction by geometry rather than by serial.
*
* This is used by xwayland views, as they don't have serials.
*/
void transaction_notify_view_ready_by_geometry(struct sway_view *view,
double x, double y, int width, int height);
/**
* Unconditionally notify the transaction system that a view is ready for the
* new layout.
*/
void transaction_notify_view_ready_immediately(struct sway_view *view);
#endif
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