mirror of
https://github.com/rkd77/elinks.git
synced 2024-12-04 14:46:47 -05:00
46 lines
1.7 KiB
C
46 lines
1.7 KiB
C
|
#ifndef EL__SESSION_HISTORY_H
|
||
|
|
#define EL__SESSION_HISTORY_H
|
||
|
|
|
||
|
|
struct location;
|
||
|
|
struct session;
|
||
|
|
|
||
|
|
struct ses_history {
|
||
|
|
/* The first list item is the first visited location. The last list
|
||
|
|
* item is the last location in the unhistory. The @current location is
|
||
|
|
* included in this list. */
|
||
|
|
struct list_head history; /* -> struct location */
|
||
|
|
|
||
|
|
/* The current location. This is moveable pivot pointing somewhere at
|
||
|
|
* the middle of @history. */
|
||
|
|
struct location *current;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
void create_history(struct ses_history *history);
|
||
|
|
void destroy_history(struct ses_history *history);
|
||
|
|
void clean_unhistory(struct ses_history *history);
|
||
|
|
|
||
|
|
void add_to_history(struct ses_history *history, struct location *loc);
|
||
|
|
void del_from_history(struct ses_history *history, struct location *loc);
|
||
|
|
|
||
|
|
|
||
|
|
/* Note that this function is dangerous, and its results are sort of
|
||
|
|
* unpredictable. If the document is cached and is permitted to be fetched from
|
||
|
|
* the cache, the effect of this function is immediate and you end up with the
|
||
|
|
* new location being cur_loc(). BUT if the cache entry cannot be used, the
|
||
|
|
* effect is delayed to the next main loop iteration, as the TASK_HISTORY
|
||
|
|
* session task (ses_history_move()) is executed not now but in the bottom-half
|
||
|
|
* handler. So, you MUST NOT depend on cur_loc() having an arbitrary value
|
||
|
|
* after call to this function (or the regents go_(un)back(), of course). */
|
||
|
|
void go_history(struct session *ses, struct location *loc);
|
||
|
|
|
||
|
|
/* Move back -n times if n is negative, forward n times if positive. */
|
||
|
|
void go_history_by_n(struct session *ses, int n);
|
||
|
|
|
||
|
|
void go_back(struct session *ses);
|
||
|
|
void go_unback(struct session *ses);
|
||
|
|
|
||
|
|
void ses_history_move(struct session *ses);
|
||
|
|
|
||
|
|
#endif
|