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Add a new seat method to return the cursor position.

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The motivation is for the SUPDUP protocol.  The server may send a
signal for the terminal to reset any input buffers.  After this, the
server will not know the state of the terminal, so it is required to
send its cursor position back.
This commit is contained in:
Lars Brinkhoff
2019-04-04 21:17:24 +02:00
committed by Simon Tatham
parent 1efded20a1
commit a8bb6456d1
11 changed files with 44 additions and 0 deletions
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11
putty.h
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@ -918,6 +918,13 @@ struct SeatVtable {
* Ask the seat whether it's an interactive program.
*/
bool (*interactive)(Seat *seat);
/*
* Return the seat's current idea of where the output cursor is.
*
* Returns true if the seat has a cursor. Returns false if not.
*/
bool (*get_cursor_position)(Seat *seat, int *x, int *y);
};
static inline size_t seat_output(
@ -967,6 +974,8 @@ static inline bool seat_verbose(Seat *seat)
{ return seat->vt->verbose(seat); }
static inline bool seat_interactive(Seat *seat)
{ return seat->vt->interactive(seat); }
static inline bool seat_get_cursor_position(Seat *seat, int *x, int *y)
{ return seat->vt->get_cursor_position(seat, x, y); }
/* Unlike the seat's actual method, the public entry point
* seat_connection_fatal is a wrapper function with a printf-like API,
@ -1023,6 +1032,7 @@ bool nullseat_verbose_no(Seat *seat);
bool nullseat_verbose_yes(Seat *seat);
bool nullseat_interactive_no(Seat *seat);
bool nullseat_interactive_yes(Seat *seat);
bool nullseat_get_cursor_position(Seat *seat, int *x, int *y);
/*
* Seat functions provided by the platform's console-application
@ -1607,6 +1617,7 @@ int term_get_userpass_input(Terminal *term, prompts_t *p, bufchain *input);
void term_set_trust_status(Terminal *term, bool trusted);
void term_keyinput(Terminal *, int codepage, const void *buf, int len);
void term_keyinputw(Terminal *, const wchar_t * widebuf, int len);
void term_get_cursor_position(Terminal *term, int *x, int *y);
typedef enum SmallKeypadKey {
SKK_HOME, SKK_END, SKK_INSERT, SKK_DELETE, SKK_PGUP, SKK_PGDN,