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