1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
#ifndef _SWAY_TRANSACTION_H
#define _SWAY_TRANSACTION_H
#include <wlr/render/wlr_texture.h>
#include "sway/tree/container.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.
*/
/**
* Find all dirty containers, create and commit a transaction containing them,
* and unmark them as dirty.
*/
void transaction_commit_dirty(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(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 width and height rather than by serial.
*
* This is used by xwayland views, as they don't have serials.
*/
void transaction_notify_view_ready_by_size(struct sway_view *view,
int width, int height);
/**
* Get the saved texture that should be rendered for a view.
*
* The addresses pointed at by the width and height pointers will be populated
* with the surface's dimensions, which may be different to the texture's
* dimensions if output scaling is used.
*
* This function should only be called if it is known that the view has
* instructions.
*/
struct wlr_texture *transaction_get_saved_texture(struct sway_view *view,
int *width, int *height);
#endif
|
