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term: use custom cursor movement functions when OSC-8 is active

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Use runtime switchable function pointers for cursor movement
functions. The “normal” once are not OSC-8 aware, while the *_osc8
are.

OSC-8 aware means the cursor movement functions will “close” the
currently open URL before moving the cursor, and then re-open the URL
after having moved the cursor.

This simulates SGR-like behavior for OSC-8 URLs; the URL “property” is
only assigned to cells that are actually printed to.

Closes #816
This commit is contained in:
Daniel Eklöf 2021-11-23 20:34:16 +01:00
parent 11e7539b84
commit d19326c496
No known key found for this signature in database
GPG key ID: 5BBD4992C116573F
2 changed files with 169 additions and 43 deletions
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29
terminal.h
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@ -289,6 +289,13 @@ struct terminal {
const struct config *conf;
void (*ascii_printer)(struct terminal *term, wchar_t c);
struct {
void (*to)(struct terminal *term, int row, int col);
void (*left)(struct terminal *term, int count);
void (*right)(struct terminal *term, int count);
void (*up)(struct terminal *term, int count);
void (*down)(struct terminal *term, int count);
} cursor_move;
pid_t slave;
int ptmx;
@ -696,11 +703,23 @@ void term_erase_scrollback(struct terminal *term);
int term_row_rel_to_abs(const struct terminal *term, int row);
void term_cursor_home(struct terminal *term);
void term_cursor_to(struct terminal *term, int row, int col);
void term_cursor_left(struct terminal *term, int count);
void term_cursor_right(struct terminal *term, int count);
void term_cursor_up(struct terminal *term, int count);
void term_cursor_down(struct terminal *term, int count);
static inline void term_cursor_to(struct terminal *term, int row, int col) {
term->cursor_move.to(term, row, col);
}
static inline void term_cursor_left(struct terminal *term, int count) {
term->cursor_move.left(term, count);
}
static inline void term_cursor_right(struct terminal *term, int count) {
term->cursor_move.right(term, count);
}
static inline void term_cursor_up(struct terminal *term, int count) {
term->cursor_move.up(term, count);
}
static inline void term_cursor_down(struct terminal *term, int count) {
term->cursor_move.down(term, count);
}
void term_cursor_blink_update(struct terminal *term);
void term_print(struct terminal *term, wchar_t wc, int width);