tmux/window-copy.c
nicm 4179b42424 Add support for BCE (background colour erase). This makes various escape
sequences (notable EL and ED but also IL, DL, ICH, DCH) create blank
cells using the current background colour rather than the default
colour.

On modern systems BCE doesn't really have many benefits, but most other
terminals now support it, some (lazy) applications rely on it, and it is
not hard to include now that we have pane background colours anyway.

Mostly written by Sean Haugh.
2016-10-13 20:27:27 +00:00

2185 lines
57 KiB
C

/* $OpenBSD$ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
static const char *window_copy_key_table(struct window_pane *);
static void window_copy_command(struct window_pane *, struct client *,
struct session *, struct args *, struct mouse_event *);
static struct screen *window_copy_init(struct window_pane *);
static void window_copy_free(struct window_pane *);
static void window_copy_pagedown(struct window_pane *, int);
static void window_copy_next_paragraph(struct window_pane *);
static void window_copy_previous_paragraph(struct window_pane *);
static void window_copy_resize(struct window_pane *, u_int, u_int);
static void window_copy_redraw_selection(struct window_pane *, u_int);
static void window_copy_redraw_lines(struct window_pane *, u_int, u_int);
static void window_copy_redraw_screen(struct window_pane *);
static void window_copy_write_line(struct window_pane *,
struct screen_write_ctx *, u_int);
static void window_copy_write_lines(struct window_pane *,
struct screen_write_ctx *, u_int, u_int);
static void window_copy_scroll_to(struct window_pane *, u_int, u_int);
static int window_copy_search_compare(struct grid *, u_int, u_int,
struct grid *, u_int, int);
static int window_copy_search_lr(struct grid *, struct grid *, u_int *,
u_int, u_int, u_int, int);
static int window_copy_search_rl(struct grid *, struct grid *, u_int *,
u_int, u_int, u_int, int);
static void window_copy_move_left(struct screen *, u_int *, u_int *);
static void window_copy_move_right(struct screen *, u_int *, u_int *);
static int window_copy_is_lowercase(const char *);
static void window_copy_search_jump(struct window_pane *, struct grid *,
struct grid *, u_int, u_int, u_int, int, int, int);
static void window_copy_search(struct window_pane *, const char *, int,
int);
static void window_copy_search_up(struct window_pane *, const char *, int);
static void window_copy_search_down(struct window_pane *, const char *,
int);
static void window_copy_goto_line(struct window_pane *, const char *);
static void window_copy_update_cursor(struct window_pane *, u_int, u_int);
static void window_copy_start_selection(struct window_pane *);
static int window_copy_update_selection(struct window_pane *, int);
static void *window_copy_get_selection(struct window_pane *, size_t *);
static void window_copy_copy_buffer(struct window_pane *, const char *,
void *, size_t);
static void window_copy_copy_pipe(struct window_pane *, struct session *,
const char *, const char *);
static void window_copy_copy_selection(struct window_pane *, const char *);
static void window_copy_append_selection(struct window_pane *,
const char *);
static void window_copy_clear_selection(struct window_pane *);
static void window_copy_copy_line(struct window_pane *, char **, size_t *,
u_int, u_int, u_int);
static int window_copy_in_set(struct window_pane *, u_int, u_int,
const char *);
static u_int window_copy_find_length(struct window_pane *, u_int);
static void window_copy_cursor_start_of_line(struct window_pane *);
static void window_copy_cursor_back_to_indentation(struct window_pane *);
static void window_copy_cursor_end_of_line(struct window_pane *);
static void window_copy_other_end(struct window_pane *);
static void window_copy_cursor_left(struct window_pane *);
static void window_copy_cursor_right(struct window_pane *);
static void window_copy_cursor_up(struct window_pane *, int);
static void window_copy_cursor_down(struct window_pane *, int);
static void window_copy_cursor_jump(struct window_pane *);
static void window_copy_cursor_jump_back(struct window_pane *);
static void window_copy_cursor_jump_to(struct window_pane *, int);
static void window_copy_cursor_jump_to_back(struct window_pane *, int);
static void window_copy_cursor_next_word(struct window_pane *,
const char *);
static void window_copy_cursor_next_word_end(struct window_pane *,
const char *);
static void window_copy_cursor_previous_word(struct window_pane *,
const char *);
static void window_copy_scroll_up(struct window_pane *, u_int);
static void window_copy_scroll_down(struct window_pane *, u_int);
static void window_copy_rectangle_toggle(struct window_pane *);
static void window_copy_move_mouse(struct mouse_event *);
static void window_copy_drag_update(struct client *, struct mouse_event *);
const struct window_mode window_copy_mode = {
.init = window_copy_init,
.free = window_copy_free,
.resize = window_copy_resize,
.key_table = window_copy_key_table,
.command = window_copy_command,
};
enum {
WINDOW_COPY_OFF,
WINDOW_COPY_SEARCHUP,
WINDOW_COPY_SEARCHDOWN,
WINDOW_COPY_JUMPFORWARD,
WINDOW_COPY_JUMPBACKWARD,
WINDOW_COPY_JUMPTOFORWARD,
WINDOW_COPY_JUMPTOBACKWARD,
};
/*
* Copy-mode's visible screen (the "screen" field) is filled from one of
* two sources: the original contents of the pane (used when we
* actually enter via the "copy-mode" command, to copy the contents of
* the current pane), or else a series of lines containing the output
* from an output-writing tmux command (such as any of the "show-*" or
* "list-*" commands).
*
* In either case, the full content of the copy-mode grid is pointed at
* by the "backing" field, and is copied into "screen" as needed (that
* is, when scrolling occurs). When copy-mode is backed by a pane,
* backing points directly at that pane's screen structure (&wp->base);
* when backed by a list of output-lines from a command, it points at
* a newly-allocated screen structure (which is deallocated when the
* mode ends).
*/
struct window_copy_mode_data {
struct screen screen;
struct screen *backing;
int backing_written; /* backing display started */
u_int oy;
u_int selx;
u_int sely;
int rectflag; /* in rectangle copy mode? */
int scroll_exit; /* exit on scroll to end? */
u_int cx;
u_int cy;
u_int lastcx; /* position in last line w/ content */
u_int lastsx; /* size of last line w/ content */
int searchtype;
char *searchstr;
int jumptype;
char jumpchar;
};
static struct screen *
window_copy_init(struct window_pane *wp)
{
struct window_copy_mode_data *data;
struct screen *s;
wp->modedata = data = xmalloc(sizeof *data);
data->oy = 0;
data->cx = 0;
data->cy = 0;
data->lastcx = 0;
data->lastsx = 0;
data->backing_written = 0;
data->rectflag = 0;
data->scroll_exit = 0;
data->searchtype = WINDOW_COPY_OFF;
data->searchstr = NULL;
if (wp->fd != -1)
bufferevent_disable(wp->event, EV_READ|EV_WRITE);
data->jumptype = WINDOW_COPY_OFF;
data->jumpchar = '\0';
s = &data->screen;
screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
s->sel.modekeys = options_get_number(wp->window->options, "mode-keys");
data->backing = NULL;
return (s);
}
void
window_copy_init_from_pane(struct window_pane *wp, int scroll_exit)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
struct screen_write_ctx ctx;
u_int i;
if (wp->mode != &window_copy_mode)
fatalx("not in copy mode");
data->backing = &wp->base;
data->cx = data->backing->cx;
data->cy = data->backing->cy;
data->scroll_exit = scroll_exit;
s->cx = data->cx;
s->cy = data->cy;
screen_write_start(&ctx, NULL, s);
for (i = 0; i < screen_size_y(s); i++)
window_copy_write_line(wp, &ctx, i);
screen_write_cursormove(&ctx, data->cx, data->cy);
screen_write_stop(&ctx);
}
void
window_copy_init_for_output(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
data->backing = xmalloc(sizeof *data->backing);
screen_init(data->backing, screen_size_x(&wp->base),
screen_size_y(&wp->base), UINT_MAX);
}
static void
window_copy_free(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
if (wp->fd != -1)
bufferevent_enable(wp->event, EV_READ|EV_WRITE);
free(data->searchstr);
if (data->backing != &wp->base) {
screen_free(data->backing);
free(data->backing);
}
screen_free(&data->screen);
free(data);
}
void
window_copy_add(struct window_pane *wp, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
window_copy_vadd(wp, fmt, ap);
va_end(ap);
}
void
window_copy_vadd(struct window_pane *wp, const char *fmt, va_list ap)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *backing = data->backing;
struct screen_write_ctx back_ctx, ctx;
struct grid_cell gc;
u_int old_hsize, old_cy;
if (backing == &wp->base)
return;
memcpy(&gc, &grid_default_cell, sizeof gc);
old_hsize = screen_hsize(data->backing);
screen_write_start(&back_ctx, NULL, backing);
if (data->backing_written) {
/*
* On the second or later line, do a CRLF before writing
* (so it's on a new line).
*/
screen_write_carriagereturn(&back_ctx);
screen_write_linefeed(&back_ctx, 0);
} else
data->backing_written = 1;
old_cy = backing->cy;
screen_write_vnputs(&back_ctx, 0, &gc, fmt, ap);
screen_write_stop(&back_ctx);
data->oy += screen_hsize(data->backing) - old_hsize;
screen_write_start(&ctx, wp, &data->screen);
/*
* If the history has changed, draw the top line.
* (If there's any history at all, it has changed.)
*/
if (screen_hsize(data->backing))
window_copy_redraw_lines(wp, 0, 1);
/* Write the new lines. */
window_copy_redraw_lines(wp, old_cy, backing->cy - old_cy + 1);
screen_write_stop(&ctx);
}
void
window_copy_pageup(struct window_pane *wp, int half_page)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int n, ox, oy;
oy = screen_hsize(data->backing) + data->cy - data->oy;
ox = window_copy_find_length(wp, oy);
if (s->sel.lineflag == LINE_SEL_LEFT_RIGHT && oy == data->sely)
window_copy_other_end(wp);
if (data->cx != ox) {
data->lastcx = data->cx;
data->lastsx = ox;
}
data->cx = data->lastcx;
n = 1;
if (screen_size_y(s) > 2) {
if (half_page)
n = screen_size_y(s) / 2;
else
n = screen_size_y(s) - 2;
}
if (data->oy + n > screen_hsize(data->backing))
data->oy = screen_hsize(data->backing);
else
data->oy += n;
if (!data->screen.sel.flag || !data->rectflag) {
u_int py = screen_hsize(data->backing) + data->cy - data->oy;
u_int px = window_copy_find_length(wp, py);
if ((data->cx >= data->lastsx && data->cx != px) || data->cx > px)
window_copy_cursor_end_of_line(wp);
}
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
static void
window_copy_pagedown(struct window_pane *wp, int half_page)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int n, ox, oy;
oy = screen_hsize(data->backing) + data->cy - data->oy;
ox = window_copy_find_length(wp, oy);
if (s->sel.lineflag == LINE_SEL_RIGHT_LEFT && oy == data->sely)
window_copy_other_end(wp);
if (data->cx != ox) {
data->lastcx = data->cx;
data->lastsx = ox;
}
data->cx = data->lastcx;
n = 1;
if (screen_size_y(s) > 2) {
if (half_page)
n = screen_size_y(s) / 2;
else
n = screen_size_y(s) - 2;
}
if (data->oy < n)
data->oy = 0;
else
data->oy -= n;
if (!data->screen.sel.flag || !data->rectflag) {
u_int py = screen_hsize(data->backing) + data->cy - data->oy;
u_int px = window_copy_find_length(wp, py);
if ((data->cx >= data->lastsx && data->cx != px) || data->cx > px)
window_copy_cursor_end_of_line(wp);
}
if (data->scroll_exit && data->oy == 0) {
window_pane_reset_mode(wp);
return;
}
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
static void
window_copy_previous_paragraph(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
u_int oy;
oy = screen_hsize(data->backing) + data->cy - data->oy;
while (oy > 0 && window_copy_find_length(wp, oy) == 0)
oy--;
while (oy > 0 && window_copy_find_length(wp, oy) > 0)
oy--;
window_copy_scroll_to(wp, 0, oy);
}
static void
window_copy_next_paragraph(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int maxy, ox, oy;
oy = screen_hsize(data->backing) + data->cy - data->oy;
maxy = screen_hsize(data->backing) + screen_size_y(s) - 1;
while (oy < maxy && window_copy_find_length(wp, oy) == 0)
oy++;
while (oy < maxy && window_copy_find_length(wp, oy) > 0)
oy++;
ox = window_copy_find_length(wp, oy);
window_copy_scroll_to(wp, ox, oy);
}
static void
window_copy_resize(struct window_pane *wp, u_int sx, u_int sy)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
struct screen_write_ctx ctx;
screen_resize(s, sx, sy, 1);
if (data->backing != &wp->base)
screen_resize(data->backing, sx, sy, 1);
if (data->cy > sy - 1)
data->cy = sy - 1;
if (data->cx > sx)
data->cx = sx;
if (data->oy > screen_hsize(data->backing))
data->oy = screen_hsize(data->backing);
window_copy_clear_selection(wp);
screen_write_start(&ctx, NULL, s);
window_copy_write_lines(wp, &ctx, 0, screen_size_y(s) - 1);
screen_write_stop(&ctx);
window_copy_redraw_screen(wp);
}
static const char *
window_copy_key_table(struct window_pane *wp)
{
if (options_get_number(wp->window->options, "mode-keys") == MODEKEY_VI)
return ("copy-mode-vi");
return ("copy-mode");
}
static void
window_copy_command(struct window_pane *wp, struct client *c, struct session *s,
struct args *args, struct mouse_event *m)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *sn = &data->screen;
const char *command, *argument, *ws, *ss;
u_int np = wp->modeprefix;
if (args->argc == 0)
return;
command = args->argv[0];
if (m != NULL && m->valid)
window_copy_move_mouse(m);
if (args->argc == 1) {
if (strcmp(command, "append-selection") == 0) {
if (s != NULL)
window_copy_append_selection(wp, NULL);
window_copy_clear_selection(wp);
window_copy_redraw_screen(wp);
}
if (strcmp(command, "append-selection-and-cancel") == 0) {
if (s != NULL)
window_copy_append_selection(wp, NULL);
window_copy_clear_selection(wp);
window_copy_redraw_screen(wp);
window_pane_reset_mode(wp);
}
if (strcmp(command, "back-to-indentation") == 0)
window_copy_cursor_back_to_indentation(wp);
if (strcmp(command, "begin-selection") == 0) {
if (m != NULL)
window_copy_start_drag(c, m);
else {
sn->sel.lineflag = LINE_SEL_NONE;
window_copy_start_selection(wp);
window_copy_redraw_screen(wp);
}
}
if (strcmp(command, "bottom-line") == 0) {
data->cx = 0;
data->cy = screen_size_y(sn) - 1;
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
if (strcmp(command, "cancel") == 0)
window_pane_reset_mode(wp);
if (strcmp(command, "clear-selection") == 0) {
window_copy_clear_selection(wp);
window_copy_redraw_screen(wp);
}
if (strcmp(command, "copy-end-of-line") == 0) {
window_copy_start_selection(wp);
for (; np > 1; np--)
window_copy_cursor_down(wp, 0);
window_copy_cursor_end_of_line(wp);
window_copy_redraw_screen(wp);
if (s != NULL) {
window_copy_copy_selection(wp, NULL);
window_pane_reset_mode(wp);
}
}
if (strcmp(command, "copy-line") == 0) {
window_copy_cursor_start_of_line(wp);
window_copy_start_selection(wp);
for (; np > 1; np--)
window_copy_cursor_down(wp, 0);
window_copy_cursor_end_of_line(wp);
window_copy_redraw_screen(wp);
if (s != NULL) {
window_copy_copy_selection(wp, NULL);
window_pane_reset_mode(wp);
}
}
if (strcmp(command, "copy-selection") == 0) {
if (s != NULL)
window_copy_copy_selection(wp, NULL);
window_copy_clear_selection(wp);
window_copy_redraw_screen(wp);
}
if (strcmp(command, "copy-selection-and-cancel") == 0) {
if (s != NULL)
window_copy_copy_selection(wp, NULL);
window_copy_clear_selection(wp);
window_copy_redraw_screen(wp);
window_pane_reset_mode(wp);
}
if (strcmp(command, "cursor-down") == 0) {
for (; np != 0; np--)
window_copy_cursor_down(wp, 0);
}
if (strcmp(command, "cursor-left") == 0) {
for (; np != 0; np--)
window_copy_cursor_left(wp);
}
if (strcmp(command, "cursor-right") == 0) {
for (; np != 0; np--)
window_copy_cursor_right(wp);
}
if (strcmp(command, "cursor-up") == 0) {
for (; np != 0; np--)
window_copy_cursor_up(wp, 0);
}
if (strcmp(command, "end-of-line") == 0)
window_copy_cursor_end_of_line(wp);
if (strcmp(command, "halfpage-down") == 0) {
for (; np != 0; np--)
window_copy_pagedown(wp, 1);
}
if (strcmp(command, "halfpage-up") == 0) {
for (; np != 0; np--)
window_copy_pageup(wp, 1);
}
if (strcmp(command, "history-bottom") == 0) {
data->cx = 0;
data->cy = screen_size_y(sn) - 1;
data->oy = 0;
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
if (strcmp(command, "history-top") == 0) {
data->cx = 0;
data->cy = 0;
data->oy = screen_hsize(data->backing);
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
if (strcmp(command, "jump-again") == 0) {
switch (data->jumptype) {
case WINDOW_COPY_JUMPFORWARD:
for (; np != 0; np--)
window_copy_cursor_jump(wp);
break;
case WINDOW_COPY_JUMPBACKWARD:
for (; np != 0; np--)
window_copy_cursor_jump_back(wp);
break;
case WINDOW_COPY_JUMPTOFORWARD:
for (; np != 0; np--)
window_copy_cursor_jump_to(wp, 1);
break;
case WINDOW_COPY_JUMPTOBACKWARD:
for (; np != 0; np--)
window_copy_cursor_jump_to_back(wp, 1);
break;
}
}
if (strcmp(command, "jump-reverse") == 0) {
switch (data->jumptype) {
case WINDOW_COPY_JUMPFORWARD:
for (; np != 0; np--)
window_copy_cursor_jump_back(wp);
break;
case WINDOW_COPY_JUMPBACKWARD:
for (; np != 0; np--)
window_copy_cursor_jump(wp);
break;
case WINDOW_COPY_JUMPTOFORWARD:
for (; np != 0; np--)
window_copy_cursor_jump_to_back(wp, 1);
break;
case WINDOW_COPY_JUMPTOBACKWARD:
for (; np != 0; np--)
window_copy_cursor_jump_to(wp, 1);
break;
}
}
if (strcmp(command, "middle-line") == 0) {
data->cx = 0;
data->cy = (screen_size_y(sn) - 1) / 2;
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
if (strcmp(command, "next-paragraph") == 0) {
for (; np != 0; np--)
window_copy_next_paragraph(wp);
}
if (strcmp(command, "next-space") == 0) {
for (; np != 0; np--)
window_copy_cursor_next_word(wp, " ");
}
if (strcmp(command, "next-space-end") == 0) {
for (; np != 0; np--)
window_copy_cursor_next_word_end(wp, " ");
}
if (strcmp(command, "next-word") == 0) {
ws = options_get_string(s->options, "word-separators");
for (; np != 0; np--)
window_copy_cursor_next_word(wp, ws);
}
if (strcmp(command, "next-word-end") == 0) {
ws = options_get_string(s->options, "word-separators");
for (; np != 0; np--)
window_copy_cursor_next_word_end(wp, ws);
}
if (strcmp(command, "other-end") == 0) {
if ((np % 2) != 0)
window_copy_other_end(wp);
}
if (strcmp(command, "page-down") == 0) {
for (; np != 0; np--)
window_copy_pagedown(wp, 0);
}
if (strcmp(command, "page-up") == 0) {
for (; np != 0; np--)
window_copy_pageup(wp, 0);
}
if (strcmp(command, "previous-paragraph") == 0) {
for (; np != 0; np--)
window_copy_previous_paragraph(wp);
}
if (strcmp(command, "previous-space") == 0) {
for (; np != 0; np--)
window_copy_cursor_previous_word(wp, " ");
}
if (strcmp(command, "previous-word") == 0) {
ws = options_get_string(s->options, "word-separators");
for (; np != 0; np--)
window_copy_cursor_previous_word(wp, ws);
}
if (strcmp(command, "rectangle-toggle") == 0) {
sn->sel.lineflag = LINE_SEL_NONE;
window_copy_rectangle_toggle(wp);
}
if (strcmp(command, "scroll-down") == 0) {
for (; np != 0; np--)
window_copy_cursor_down(wp, 1);
if (data->scroll_exit && data->oy == 0)
window_pane_reset_mode(wp);
}
if (strcmp(command, "scroll-up") == 0) {
for (; np != 0; np--)
window_copy_cursor_up(wp, 1);
}
if (strcmp(command, "search-again") == 0) {
ss = data->searchstr;
if (data->searchtype == WINDOW_COPY_SEARCHUP) {
for (; np != 0; np--)
window_copy_search_up(wp, ss, 1);
} else if (data->searchtype == WINDOW_COPY_SEARCHDOWN) {
for (; np != 0; np--)
window_copy_search_down(wp, ss, 1);
}
}
if (strcmp(command, "search-reverse") == 0) {
ss = data->searchstr;
if (data->searchtype == WINDOW_COPY_SEARCHUP) {
for (; np != 0; np--)
window_copy_search_down(wp, ss, 1);
} else if (data->searchtype == WINDOW_COPY_SEARCHDOWN) {
for (; np != 0; np--)
window_copy_search_up(wp, ss, 1);
}
}
if (strcmp(command, "select-line") == 0) {
sn->sel.lineflag = LINE_SEL_LEFT_RIGHT;
data->rectflag = 0;
window_copy_cursor_start_of_line(wp);
window_copy_start_selection(wp);
for (; np > 1; np--)
window_copy_cursor_down(wp, 0);
window_copy_cursor_end_of_line(wp);
window_copy_redraw_screen(wp);
}
if (strcmp(command, "select-word") == 0) {
sn->sel.lineflag = LINE_SEL_LEFT_RIGHT;
data->rectflag = 0;
ws = options_get_string(s->options, "word-separators");
window_copy_cursor_previous_word(wp, ws);
window_copy_start_selection(wp);
window_copy_cursor_next_word_end(wp, ws);
window_copy_redraw_screen(wp);
}
if (strcmp(command, "start-of-line") == 0)
window_copy_cursor_start_of_line(wp);
if (strcmp(command, "top-line") == 0) {
data->cx = 0;
data->cy = 0;
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
} else if (args->argc == 2 && *args->argv[1] != '\0') {
argument = args->argv[1];
if (strcmp(command, "copy-pipe") == 0) {
if (s != NULL) {
window_copy_copy_pipe(wp, s, NULL, argument);
window_pane_reset_mode(wp);
}
}
if (strcmp(command, "goto-line") == 0)
window_copy_goto_line(wp, argument);
if (strcmp(command, "jump-backward") == 0) {
data->jumptype = WINDOW_COPY_JUMPBACKWARD;
data->jumpchar = *argument;
for (; np != 0; np--)
window_copy_cursor_jump_back(wp);
}
if (strcmp(command, "jump-forward") == 0) {
data->jumptype = WINDOW_COPY_JUMPFORWARD;
data->jumpchar = *argument;
for (; np != 0; np--)
window_copy_cursor_jump(wp);
}
if (strcmp(command, "jump-to-backward") == 0) {
data->jumptype = WINDOW_COPY_JUMPTOBACKWARD;
data->jumpchar = *argument;
for (; np != 0; np--)
window_copy_cursor_jump_to_back(wp, 1);
}
if (strcmp(command, "jump-to-forward") == 0) {
data->jumptype = WINDOW_COPY_JUMPTOFORWARD;
data->jumpchar = *argument;
for (; np != 0; np--)
window_copy_cursor_jump_to(wp, 1);
}
if (strcmp(command, "search-backward") == 0) {
data->searchtype = WINDOW_COPY_SEARCHUP;
data->searchstr = xstrdup(argument);
for (; np != 0; np--)
window_copy_search_up(wp, data->searchstr, 1);
}
if (strcmp(command, "search-forward") == 0) {
data->searchtype = WINDOW_COPY_SEARCHDOWN;
data->searchstr = xstrdup(argument);
for (; np != 0; np--)
window_copy_search_down(wp, data->searchstr, 1);
}
}
wp->modeprefix = 1;
}
static void
window_copy_scroll_to(struct window_pane *wp, u_int px, u_int py)
{
struct window_copy_mode_data *data = wp->modedata;
struct grid *gd = data->backing->grid;
u_int offset, gap;
data->cx = px;
gap = gd->sy / 4;
if (py < gd->sy) {
offset = 0;
data->cy = py;
} else if (py > gd->hsize + gd->sy - gap) {
offset = gd->hsize;
data->cy = py - gd->hsize;
} else {
offset = py + gap - gd->sy;
data->cy = py - offset;
}
data->oy = gd->hsize - offset;
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
static int
window_copy_search_compare(struct grid *gd, u_int px, u_int py,
struct grid *sgd, u_int spx, int cis)
{
struct grid_cell gc, sgc;
const struct utf8_data *ud, *sud;
grid_get_cell(gd, px, py, &gc);
ud = &gc.data;
grid_get_cell(sgd, spx, 0, &sgc);
sud = &sgc.data;
if (ud->size != sud->size || ud->width != sud->width)
return (0);
if (cis && ud->size == 1)
return (tolower(ud->data[0]) == sud->data[0]);
return (memcmp(ud->data, sud->data, ud->size) == 0);
}
static int
window_copy_search_lr(struct grid *gd,
struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last, int cis)
{
u_int ax, bx, px;
int matched;
for (ax = first; ax < last; ax++) {
if (ax + sgd->sx >= gd->sx)
break;
for (bx = 0; bx < sgd->sx; bx++) {
px = ax + bx;
matched = window_copy_search_compare(gd, px, py, sgd,
bx, cis);
if (!matched)
break;
}
if (bx == sgd->sx) {
*ppx = ax;
return (1);
}
}
return (0);
}
static int
window_copy_search_rl(struct grid *gd,
struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last, int cis)
{
u_int ax, bx, px;
int matched;
for (ax = last + 1; ax > first; ax--) {
if (gd->sx - (ax - 1) < sgd->sx)
continue;
for (bx = 0; bx < sgd->sx; bx++) {
px = ax - 1 + bx;
matched = window_copy_search_compare(gd, px, py, sgd,
bx, cis);
if (!matched)
break;
}
if (bx == sgd->sx) {
*ppx = ax - 1;
return (1);
}
}
return (0);
}
static void
window_copy_move_left(struct screen *s, u_int *fx, u_int *fy)
{
if (*fx == 0) { /* left */
if (*fy == 0) /* top */
return;
*fx = screen_size_x(s) - 1;
*fy = *fy - 1;
} else
*fx = *fx - 1;
}
static void
window_copy_move_right(struct screen *s, u_int *fx, u_int *fy)
{
if (*fx == screen_size_x(s) - 1) { /* right */
if (*fy == screen_hsize(s) + screen_size_y(s)) /* bottom */
return;
*fx = 0;
*fy = *fy + 1;
} else
*fx = *fx + 1;
}
static int
window_copy_is_lowercase(const char *ptr)
{
while (*ptr != '\0') {
if (*ptr != tolower((u_char)*ptr))
return (0);
++ptr;
}
return (1);
}
/*
* Search for text stored in sgd starting from position fx,fy up to endline. If
* found, jump to it. If cis then ignore case. The direction is 0 for searching
* up, down otherwise. If wrap then go to begin/end of grid and try again if
* not found.
*/
static void
window_copy_search_jump(struct window_pane *wp, struct grid *gd,
struct grid *sgd, u_int fx, u_int fy, u_int endline, int cis, int wrap,
int direction)
{
u_int i, px;
int found;
found = 0;
if (direction) {
for (i = fy; i <= endline; i++) {
found = window_copy_search_lr(gd, sgd, &px, i, fx,
gd->sx, cis);
if (found)
break;
fx = 0;
}
} else {
for (i = fy + 1; endline < i; i--) {
found = window_copy_search_rl(gd, sgd, &px, i - 1, 0,
fx, cis);
if (found) {
i--;
break;
}
fx = gd->sx;
}
}
if (found)
window_copy_scroll_to(wp, px, i);
else if (wrap) {
window_copy_search_jump(wp, gd, sgd, direction ? 0 : gd->sx - 1,
direction ? 0 : gd->hsize + gd->sy - 1, fy, cis, 0,
direction);
}
}
/*
* Search in for text searchstr. If direction is 0 then search up, otherwise
* down. If moveflag is 0 then look for string at the current cursor position
* as well.
*/
static void
window_copy_search(struct window_pane *wp, const char *searchstr, int direction,
int moveflag)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = data->backing, ss;
struct screen_write_ctx ctx;
struct grid *gd = s->grid;
u_int fx, fy, endline;
int wrapflag, cis;
fx = data->cx;
fy = screen_hsize(data->backing) - data->oy + data->cy;
screen_init(&ss, screen_write_strlen("%s", searchstr), 1, 0);
screen_write_start(&ctx, NULL, &ss);
screen_write_nputs(&ctx, -1, &grid_default_cell, "%s", searchstr);
screen_write_stop(&ctx);
if (moveflag) {
if (direction)
window_copy_move_right(s, &fx, &fy);
else
window_copy_move_left(s, &fx, &fy);
}
window_copy_clear_selection(wp);
wrapflag = options_get_number(wp->window->options, "wrap-search");
cis = window_copy_is_lowercase(searchstr);
if (direction)
endline = gd->hsize + gd->sy - 1;
else
endline = 0;
window_copy_search_jump(wp, gd, ss.grid, fx, fy, endline, cis, wrapflag,
direction);
screen_free(&ss);
}
static void
window_copy_search_up(struct window_pane *wp, const char *searchstr,
int moveflag)
{
window_copy_search(wp, searchstr, 0, moveflag);
}
static void
window_copy_search_down(struct window_pane *wp, const char *searchstr,
int moveflag)
{
window_copy_search(wp, searchstr, 1, moveflag);
}
static void
window_copy_goto_line(struct window_pane *wp, const char *linestr)
{
struct window_copy_mode_data *data = wp->modedata;
const char *errstr;
u_int lineno;
lineno = strtonum(linestr, 0, screen_hsize(data->backing), &errstr);
if (errstr != NULL)
return;
data->oy = lineno;
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
static void
window_copy_write_line(struct window_pane *wp, struct screen_write_ctx *ctx,
u_int py)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
struct options *oo = wp->window->options;
struct grid_cell gc;
char hdr[512];
size_t xoff = 0, size = 0;
style_apply(&gc, oo, "mode-style");
if (py == 0) {
size = xsnprintf(hdr, sizeof hdr,
"[%u/%u]", data->oy, screen_hsize(data->backing));
if (size > screen_size_x(s))
size = screen_size_x(s);
screen_write_cursormove(ctx, screen_size_x(s) - size, 0);
screen_write_puts(ctx, &gc, "%s", hdr);
} else
size = 0;
if (size < screen_size_x(s)) {
screen_write_cursormove(ctx, xoff, py);
screen_write_copy(ctx, data->backing, xoff,
(screen_hsize(data->backing) - data->oy) + py,
screen_size_x(s) - size, 1);
}
if (py == data->cy && data->cx == screen_size_x(s)) {
memcpy(&gc, &grid_default_cell, sizeof gc);
screen_write_cursormove(ctx, screen_size_x(s) - 1, py);
screen_write_putc(ctx, &gc, '$');
}
}
static void
window_copy_write_lines(struct window_pane *wp, struct screen_write_ctx *ctx,
u_int py, u_int ny)
{
u_int yy;
for (yy = py; yy < py + ny; yy++)
window_copy_write_line(wp, ctx, py);
}
static void
window_copy_redraw_selection(struct window_pane *wp, u_int old_y)
{
struct window_copy_mode_data *data = wp->modedata;
u_int new_y, start, end;
new_y = data->cy;
if (old_y <= new_y) {
start = old_y;
end = new_y;
} else {
start = new_y;
end = old_y;
}
window_copy_redraw_lines(wp, start, end - start + 1);
}
static void
window_copy_redraw_lines(struct window_pane *wp, u_int py, u_int ny)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen_write_ctx ctx;
u_int i;
screen_write_start(&ctx, wp, NULL);
for (i = py; i < py + ny; i++)
window_copy_write_line(wp, &ctx, i);
screen_write_cursormove(&ctx, data->cx, data->cy);
screen_write_stop(&ctx);
}
static void
window_copy_redraw_screen(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
window_copy_redraw_lines(wp, 0, screen_size_y(&data->screen));
}
static void
window_copy_update_cursor(struct window_pane *wp, u_int cx, u_int cy)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
struct screen_write_ctx ctx;
u_int old_cx, old_cy;
old_cx = data->cx; old_cy = data->cy;
data->cx = cx; data->cy = cy;
if (old_cx == screen_size_x(s))
window_copy_redraw_lines(wp, old_cy, 1);
if (data->cx == screen_size_x(s))
window_copy_redraw_lines(wp, data->cy, 1);
else {
screen_write_start(&ctx, wp, NULL);
screen_write_cursormove(&ctx, data->cx, data->cy);
screen_write_stop(&ctx);
}
}
static void
window_copy_start_selection(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
data->selx = data->cx;
data->sely = screen_hsize(data->backing) + data->cy - data->oy;
s->sel.flag = 1;
window_copy_update_selection(wp, 1);
}
static int
window_copy_update_selection(struct window_pane *wp, int may_redraw)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
struct options *oo = wp->window->options;
struct grid_cell gc;
u_int sx, sy, ty, cy;
if (!s->sel.flag && s->sel.lineflag == LINE_SEL_NONE)
return (0);
/* Set colours. */
style_apply(&gc, oo, "mode-style");
/* Find top of screen. */
ty = screen_hsize(data->backing) - data->oy;
/* Adjust the selection. */
sx = data->selx;
sy = data->sely;
if (sy < ty) { /* above screen */
if (!data->rectflag)
sx = 0;
sy = 0;
} else if (sy > ty + screen_size_y(s) - 1) { /* below screen */
if (!data->rectflag)
sx = screen_size_x(s) - 1;
sy = screen_size_y(s) - 1;
} else
sy -= ty;
sy = screen_hsize(s) + sy;
screen_set_selection(s,
sx, sy, data->cx, screen_hsize(s) + data->cy, data->rectflag, &gc);
if (data->rectflag && may_redraw) {
/*
* Can't rely on the caller to redraw the right lines for
* rectangle selection - find the highest line and the number
* of lines, and redraw just past that in both directions
*/
cy = data->cy;
if (sy < cy)
window_copy_redraw_lines(wp, sy, cy - sy + 1);
else
window_copy_redraw_lines(wp, cy, sy - cy + 1);
}
return (1);
}
static void *
window_copy_get_selection(struct window_pane *wp, size_t *len)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
char *buf;
size_t off;
u_int i, xx, yy, sx, sy, ex, ey, ey_last;
u_int firstsx, lastex, restex, restsx;
int keys;
if (!s->sel.flag && s->sel.lineflag == LINE_SEL_NONE)
return (NULL);
buf = xmalloc(1);
off = 0;
*buf = '\0';
/*
* The selection extends from selx,sely to (adjusted) cx,cy on
* the base screen.
*/
/* Find start and end. */
xx = data->cx;
yy = screen_hsize(data->backing) + data->cy - data->oy;
if (yy < data->sely || (yy == data->sely && xx < data->selx)) {
sx = xx; sy = yy;
ex = data->selx; ey = data->sely;
} else {
sx = data->selx; sy = data->sely;
ex = xx; ey = yy;
}
/* Trim ex to end of line. */
ey_last = window_copy_find_length(wp, ey);
if (ex > ey_last)
ex = ey_last;
/*
* Deal with rectangle-copy if necessary; four situations: start of
* first line (firstsx), end of last line (lastex), start (restsx) and
* end (restex) of all other lines.
*/
xx = screen_size_x(s);
/*
* Behave according to mode-keys. If it is emacs, copy like emacs,
* keeping the top-left-most character, and dropping the
* bottom-right-most, regardless of copy direction. If it is vi, also
* keep bottom-right-most character.
*/
keys = options_get_number(wp->window->options, "mode-keys");
if (data->rectflag) {
/*
* Need to ignore the column with the cursor in it, which for
* rectangular copy means knowing which side the cursor is on.
*/
if (data->selx < data->cx) {
/* Selection start is on the left. */
if (keys == MODEKEY_EMACS) {
lastex = data->cx;
restex = data->cx;
}
else {
lastex = data->cx + 1;
restex = data->cx + 1;
}
firstsx = data->selx;
restsx = data->selx;
} else {
/* Cursor is on the left. */
lastex = data->selx + 1;
restex = data->selx + 1;
firstsx = data->cx;
restsx = data->cx;
}
} else {
if (keys == MODEKEY_EMACS)
lastex = ex;
else
lastex = ex + 1;
restex = xx;
firstsx = sx;
restsx = 0;
}
/* Copy the lines. */
for (i = sy; i <= ey; i++) {
window_copy_copy_line(wp, &buf, &off, i,
(i == sy ? firstsx : restsx),
(i == ey ? lastex : restex));
}
/* Don't bother if no data. */
if (off == 0) {
free(buf);
return (NULL);
}
if (keys == MODEKEY_EMACS || lastex <= ey_last)
off -= 1; /* remove final \n (unless at end in vi mode) */
*len = off;
return (buf);
}
static void
window_copy_copy_buffer(struct window_pane *wp, const char *bufname, void *buf,
size_t len)
{
struct screen_write_ctx ctx;
if (options_get_number(global_options, "set-clipboard")) {
screen_write_start(&ctx, wp, NULL);
screen_write_setselection(&ctx, buf, len);
screen_write_stop(&ctx);
}
if (paste_set(buf, len, bufname, NULL) != 0)
free(buf);
}
static void
window_copy_copy_pipe(struct window_pane *wp, struct session *sess,
const char *bufname, const char *arg)
{
void *buf;
size_t len;
struct job *job;
struct format_tree *ft;
char *expanded;
buf = window_copy_get_selection(wp, &len);
if (buf == NULL)
return;
ft = format_create(NULL, 0);
format_defaults(ft, NULL, sess, NULL, wp);
expanded = format_expand(ft, arg);
job = job_run(expanded, sess, NULL, NULL, NULL, NULL);
bufferevent_write(job->event, buf, len);
free(expanded);
format_free(ft);
window_copy_copy_buffer(wp, bufname, buf, len);
}
static void
window_copy_copy_selection(struct window_pane *wp, const char *bufname)
{
void *buf;
size_t len;
buf = window_copy_get_selection(wp, &len);
if (buf == NULL)
return;
window_copy_copy_buffer(wp, bufname, buf, len);
}
static void
window_copy_append_selection(struct window_pane *wp, const char *bufname)
{
char *buf;
struct paste_buffer *pb;
const char *bufdata;
size_t len, bufsize;
struct screen_write_ctx ctx;
buf = window_copy_get_selection(wp, &len);
if (buf == NULL)
return;
if (options_get_number(global_options, "set-clipboard")) {
screen_write_start(&ctx, wp, NULL);
screen_write_setselection(&ctx, buf, len);
screen_write_stop(&ctx);
}
if (bufname == NULL || *bufname == '\0')
pb = paste_get_top(&bufname);
else
pb = paste_get_name(bufname);
if (pb != NULL) {
bufdata = paste_buffer_data(pb, &bufsize);
buf = xrealloc(buf, len + bufsize);
memmove(buf + bufsize, buf, len);
memcpy(buf, bufdata, bufsize);
len += bufsize;
}
if (paste_set(buf, len, bufname, NULL) != 0)
free(buf);
}
static void
window_copy_copy_line(struct window_pane *wp, char **buf, size_t *off, u_int sy,
u_int sx, u_int ex)
{
struct window_copy_mode_data *data = wp->modedata;
struct grid *gd = data->backing->grid;
struct grid_cell gc;
struct grid_line *gl;
struct utf8_data ud;
u_int i, xx, wrapped = 0;
const char *s;
if (sx > ex)
return;
/*
* Work out if the line was wrapped at the screen edge and all of it is
* on screen.
*/
gl = &gd->linedata[sy];
if (gl->flags & GRID_LINE_WRAPPED && gl->cellsize <= gd->sx)
wrapped = 1;
/* If the line was wrapped, don't strip spaces (use the full length). */
if (wrapped)
xx = gl->cellsize;
else
xx = window_copy_find_length(wp, sy);
if (ex > xx)
ex = xx;
if (sx > xx)
sx = xx;
if (sx < ex) {
for (i = sx; i < ex; i++) {
grid_get_cell(gd, i, sy, &gc);
if (gc.flags & GRID_FLAG_PADDING)
continue;
utf8_copy(&ud, &gc.data);
if (ud.size == 1 && (gc.attr & GRID_ATTR_CHARSET)) {
s = tty_acs_get(NULL, ud.data[0]);
if (s != NULL && strlen(s) <= sizeof ud.data) {
ud.size = strlen(s);
memcpy(ud.data, s, ud.size);
}
}
*buf = xrealloc(*buf, (*off) + ud.size);
memcpy(*buf + *off, ud.data, ud.size);
*off += ud.size;
}
}
/* Only add a newline if the line wasn't wrapped. */
if (!wrapped || ex != xx) {
*buf = xrealloc(*buf, (*off) + 1);
(*buf)[(*off)++] = '\n';
}
}
static void
window_copy_clear_selection(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
u_int px, py;
screen_clear_selection(&data->screen);
py = screen_hsize(data->backing) + data->cy - data->oy;
px = window_copy_find_length(wp, py);
if (data->cx > px)
window_copy_update_cursor(wp, px, data->cy);
}
static int
window_copy_in_set(struct window_pane *wp, u_int px, u_int py, const char *set)
{
struct window_copy_mode_data *data = wp->modedata;
struct grid_cell gc;
const struct utf8_data *ud;
grid_get_cell(data->backing->grid, px, py, &gc);
ud = &gc.data;
if (ud->size != 1 || (gc.flags & GRID_FLAG_PADDING))
return (0);
if (*ud->data == 0x00 || *ud->data == 0x7f)
return (0);
return (strchr(set, *ud->data) != NULL);
}
static u_int
window_copy_find_length(struct window_pane *wp, u_int py)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = data->backing;
struct grid_cell gc;
u_int px;
/*
* If the pane has been resized, its grid can contain old overlong
* lines. grid_peek_cell does not allow accessing cells beyond the
* width of the grid, and screen_write_copy treats them as spaces, so
* ignore them here too.
*/
px = s->grid->linedata[py].cellsize;
if (px > screen_size_x(s))
px = screen_size_x(s);
while (px > 0) {
grid_get_cell(s->grid, px - 1, py, &gc);
if (gc.data.size != 1 || *gc.data.data != ' ')
break;
px--;
}
return (px);
}
static void
window_copy_cursor_start_of_line(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *back_s = data->backing;
struct screen *s = &data->screen;
struct grid *gd = back_s->grid;
u_int py;
if (data->cx == 0 && s->sel.lineflag == LINE_SEL_NONE) {
py = screen_hsize(back_s) + data->cy - data->oy;
while (py > 0 &&
gd->linedata[py-1].flags & GRID_LINE_WRAPPED) {
window_copy_cursor_up(wp, 0);
py = screen_hsize(back_s) + data->cy - data->oy;
}
}
window_copy_update_cursor(wp, 0, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
}
static void
window_copy_cursor_back_to_indentation(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
u_int px, py, xx;
struct grid_cell gc;
px = 0;
py = screen_hsize(data->backing) + data->cy - data->oy;
xx = window_copy_find_length(wp, py);
while (px < xx) {
grid_get_cell(data->backing->grid, px, py, &gc);
if (gc.data.size != 1 || *gc.data.data != ' ')
break;
px++;
}
window_copy_update_cursor(wp, px, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
}
static void
window_copy_cursor_end_of_line(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *back_s = data->backing;
struct screen *s = &data->screen;
struct grid *gd = back_s->grid;
u_int px, py;
py = screen_hsize(back_s) + data->cy - data->oy;
px = window_copy_find_length(wp, py);
if (data->cx == px && s->sel.lineflag == LINE_SEL_NONE) {
if (data->screen.sel.flag && data->rectflag)
px = screen_size_x(back_s);
if (gd->linedata[py].flags & GRID_LINE_WRAPPED) {
while (py < gd->sy + gd->hsize &&
gd->linedata[py].flags & GRID_LINE_WRAPPED) {
window_copy_cursor_down(wp, 0);
py = screen_hsize(back_s)
+ data->cy - data->oy;
}
px = window_copy_find_length(wp, py);
}
}
window_copy_update_cursor(wp, px, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
}
static void
window_copy_other_end(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int selx, sely, cx, cy, yy, hsize;
if (!s->sel.flag && s->sel.lineflag == LINE_SEL_NONE)
return;
if (s->sel.lineflag == LINE_SEL_LEFT_RIGHT)
s->sel.lineflag = LINE_SEL_RIGHT_LEFT;
else if (s->sel.lineflag == LINE_SEL_RIGHT_LEFT)
s->sel.lineflag = LINE_SEL_LEFT_RIGHT;
selx = data->selx;
sely = data->sely;
cx = data->cx;
cy = data->cy;
yy = screen_hsize(data->backing) + data->cy - data->oy;
data->selx = cx;
data->sely = yy;
data->cx = selx;
hsize = screen_hsize(data->backing);
if (sely < hsize - data->oy) {
data->oy = hsize - sely;
data->cy = 0;
} else if (sely > hsize - data->oy + screen_size_y(s)) {
data->oy = hsize - sely + screen_size_y(s) - 1;
data->cy = screen_size_y(s) - 1;
} else
data->cy = cy + sely - yy;
window_copy_redraw_screen(wp);
}
static void
window_copy_cursor_left(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
u_int py;
py = screen_hsize(data->backing) + data->cy - data->oy;
if (data->cx == 0 && py > 0) {
window_copy_cursor_up(wp, 0);
window_copy_cursor_end_of_line(wp);
} else if (data->cx > 0) {
window_copy_update_cursor(wp, data->cx - 1, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
}
}
static void
window_copy_cursor_right(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
u_int px, py, yy;
py = screen_hsize(data->backing) + data->cy - data->oy;
yy = screen_hsize(data->backing) + screen_size_y(data->backing) - 1;
if (data->screen.sel.flag && data->rectflag)
px = screen_size_x(&data->screen);
else {
px = window_copy_find_length(wp, py);
}
if (data->cx >= px && py < yy) {
window_copy_cursor_start_of_line(wp);
window_copy_cursor_down(wp, 0);
} else if (data->cx < px) {
window_copy_update_cursor(wp, data->cx + 1, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
}
}
static void
window_copy_cursor_up(struct window_pane *wp, int scroll_only)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int ox, oy, px, py;
oy = screen_hsize(data->backing) + data->cy - data->oy;
ox = window_copy_find_length(wp, oy);
if (data->cx != ox) {
data->lastcx = data->cx;
data->lastsx = ox;
}
if (s->sel.lineflag == LINE_SEL_LEFT_RIGHT && oy == data->sely)
window_copy_other_end(wp);
data->cx = data->lastcx;
if (scroll_only || data->cy == 0) {
window_copy_scroll_down(wp, 1);
if (scroll_only) {
if (data->cy == screen_size_y(s) - 1)
window_copy_redraw_lines(wp, data->cy, 1);
else
window_copy_redraw_lines(wp, data->cy, 2);
}
} else {
window_copy_update_cursor(wp, data->cx, data->cy - 1);
if (window_copy_update_selection(wp, 1)) {
if (data->cy == screen_size_y(s) - 1)
window_copy_redraw_lines(wp, data->cy, 1);
else
window_copy_redraw_lines(wp, data->cy, 2);
}
}
if (!data->screen.sel.flag || !data->rectflag) {
py = screen_hsize(data->backing) + data->cy - data->oy;
px = window_copy_find_length(wp, py);
if ((data->cx >= data->lastsx && data->cx != px) ||
data->cx > px)
window_copy_cursor_end_of_line(wp);
}
if (s->sel.lineflag == LINE_SEL_LEFT_RIGHT)
window_copy_cursor_end_of_line(wp);
else if (s->sel.lineflag == LINE_SEL_RIGHT_LEFT)
window_copy_cursor_start_of_line(wp);
}
static void
window_copy_cursor_down(struct window_pane *wp, int scroll_only)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int ox, oy, px, py;
oy = screen_hsize(data->backing) + data->cy - data->oy;
ox = window_copy_find_length(wp, oy);
if (data->cx != ox) {
data->lastcx = data->cx;
data->lastsx = ox;
}
if (s->sel.lineflag == LINE_SEL_RIGHT_LEFT && oy == data->sely)
window_copy_other_end(wp);
data->cx = data->lastcx;
if (scroll_only || data->cy == screen_size_y(s) - 1) {
window_copy_scroll_up(wp, 1);
if (scroll_only && data->cy > 0)
window_copy_redraw_lines(wp, data->cy - 1, 2);
} else {
window_copy_update_cursor(wp, data->cx, data->cy + 1);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy - 1, 2);
}
if (!data->screen.sel.flag || !data->rectflag) {
py = screen_hsize(data->backing) + data->cy - data->oy;
px = window_copy_find_length(wp, py);
if ((data->cx >= data->lastsx && data->cx != px) ||
data->cx > px)
window_copy_cursor_end_of_line(wp);
}
if (s->sel.lineflag == LINE_SEL_LEFT_RIGHT)
window_copy_cursor_end_of_line(wp);
else if (s->sel.lineflag == LINE_SEL_RIGHT_LEFT)
window_copy_cursor_start_of_line(wp);
}
static void
window_copy_cursor_jump(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *back_s = data->backing;
struct grid_cell gc;
u_int px, py, xx;
px = data->cx + 1;
py = screen_hsize(back_s) + data->cy - data->oy;
xx = window_copy_find_length(wp, py);
while (px < xx) {
grid_get_cell(back_s->grid, px, py, &gc);
if (!(gc.flags & GRID_FLAG_PADDING) &&
gc.data.size == 1 && *gc.data.data == data->jumpchar) {
window_copy_update_cursor(wp, px, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
return;
}
px++;
}
}
static void
window_copy_cursor_jump_back(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *back_s = data->backing;
struct grid_cell gc;
u_int px, py;
px = data->cx;
py = screen_hsize(back_s) + data->cy - data->oy;
if (px > 0)
px--;
for (;;) {
grid_get_cell(back_s->grid, px, py, &gc);
if (!(gc.flags & GRID_FLAG_PADDING) &&
gc.data.size == 1 && *gc.data.data == data->jumpchar) {
window_copy_update_cursor(wp, px, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
return;
}
if (px == 0)
break;
px--;
}
}
static void
window_copy_cursor_jump_to(struct window_pane *wp, int jump_again)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *back_s = data->backing;
struct grid_cell gc;
u_int px, py, xx;
px = data->cx + 1 + jump_again;
py = screen_hsize(back_s) + data->cy - data->oy;
xx = window_copy_find_length(wp, py);
while (px < xx) {
grid_get_cell(back_s->grid, px, py, &gc);
if (!(gc.flags & GRID_FLAG_PADDING) &&
gc.data.size == 1 && *gc.data.data == data->jumpchar) {
window_copy_update_cursor(wp, px - 1, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
return;
}
px++;
}
}
static void
window_copy_cursor_jump_to_back(struct window_pane *wp, int jump_again)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *back_s = data->backing;
struct grid_cell gc;
u_int px, py;
px = data->cx;
py = screen_hsize(back_s) + data->cy - data->oy;
if (px > 0)
px--;
if (jump_again && px > 0)
px--;
for (;;) {
grid_get_cell(back_s->grid, px, py, &gc);
if (!(gc.flags & GRID_FLAG_PADDING) &&
gc.data.size == 1 && *gc.data.data == data->jumpchar) {
window_copy_update_cursor(wp, px + 1, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
return;
}
if (px == 0)
break;
px--;
}
}
static void
window_copy_cursor_next_word(struct window_pane *wp, const char *separators)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *back_s = data->backing;
u_int px, py, xx, yy;
int expected = 0;
px = data->cx;
py = screen_hsize(back_s) + data->cy - data->oy;
xx = window_copy_find_length(wp, py);
yy = screen_hsize(back_s) + screen_size_y(back_s) - 1;
/*
* First skip past any nonword characters and then any word characters.
*
* expected is initially set to 0 for the former and then 1 for the
* latter.
*/
do {
while (px > xx ||
window_copy_in_set(wp, px, py, separators) == expected) {
/* Move down if we're past the end of the line. */
if (px > xx) {
if (py == yy)
return;
window_copy_cursor_down(wp, 0);
px = 0;
py = screen_hsize(back_s) + data->cy - data->oy;
xx = window_copy_find_length(wp, py);
} else
px++;
}
expected = !expected;
} while (expected == 1);
window_copy_update_cursor(wp, px, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
}
static void
window_copy_cursor_next_word_end(struct window_pane *wp,
const char *separators)
{
struct window_copy_mode_data *data = wp->modedata;
struct options *oo = wp->window->options;
struct screen *back_s = data->backing;
u_int px, py, xx, yy;
int keys, expected = 1;
px = data->cx;
py = screen_hsize(back_s) + data->cy - data->oy;
xx = window_copy_find_length(wp, py);
yy = screen_hsize(back_s) + screen_size_y(back_s) - 1;
keys = options_get_number(oo, "mode-keys");
if (keys == MODEKEY_VI && !window_copy_in_set(wp, px, py, separators))
px++;
/*
* First skip past any word characters, then any nonword characters.
*
* expected is initially set to 1 for the former and then 0 for the
* latter.
*/
do {
while (px > xx ||
window_copy_in_set(wp, px, py, separators) == expected) {
/* Move down if we're past the end of the line. */
if (px > xx) {
if (py == yy)
return;
window_copy_cursor_down(wp, 0);
px = 0;
py = screen_hsize(back_s) + data->cy - data->oy;
xx = window_copy_find_length(wp, py);
} else
px++;
}
expected = !expected;
} while (expected == 0);
if (keys == MODEKEY_VI && px != 0)
px--;
window_copy_update_cursor(wp, px, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
}
/* Move to the previous place where a word begins. */
static void
window_copy_cursor_previous_word(struct window_pane *wp,
const char *separators)
{
struct window_copy_mode_data *data = wp->modedata;
u_int px, py;
px = data->cx;
py = screen_hsize(data->backing) + data->cy - data->oy;
/* Move back to the previous word character. */
for (;;) {
if (px > 0) {
px--;
if (!window_copy_in_set(wp, px, py, separators))
break;
} else {
if (data->cy == 0 &&
(screen_hsize(data->backing) == 0 ||
data->oy >= screen_hsize(data->backing) - 1))
goto out;
window_copy_cursor_up(wp, 0);
py = screen_hsize(data->backing) + data->cy - data->oy;
px = window_copy_find_length(wp, py);
}
}
/* Move back to the beginning of this word. */
while (px > 0 && !window_copy_in_set(wp, px - 1, py, separators))
px--;
out:
window_copy_update_cursor(wp, px, data->cy);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_lines(wp, data->cy, 1);
}
static void
window_copy_scroll_up(struct window_pane *wp, u_int ny)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
struct screen_write_ctx ctx;
if (data->oy < ny)
ny = data->oy;
if (ny == 0)
return;
data->oy -= ny;
window_copy_update_selection(wp, 0);
screen_write_start(&ctx, wp, NULL);
screen_write_cursormove(&ctx, 0, 0);
screen_write_deleteline(&ctx, ny, 8);
window_copy_write_lines(wp, &ctx, screen_size_y(s) - ny, ny);
window_copy_write_line(wp, &ctx, 0);
if (screen_size_y(s) > 1)
window_copy_write_line(wp, &ctx, 1);
if (screen_size_y(s) > 3)
window_copy_write_line(wp, &ctx, screen_size_y(s) - 2);
if (s->sel.flag && screen_size_y(s) > ny)
window_copy_write_line(wp, &ctx, screen_size_y(s) - ny - 1);
screen_write_cursormove(&ctx, data->cx, data->cy);
screen_write_stop(&ctx);
}
static void
window_copy_scroll_down(struct window_pane *wp, u_int ny)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
struct screen_write_ctx ctx;
if (ny > screen_hsize(data->backing))
return;
if (data->oy > screen_hsize(data->backing) - ny)
ny = screen_hsize(data->backing) - data->oy;
if (ny == 0)
return;
data->oy += ny;
window_copy_update_selection(wp, 0);
screen_write_start(&ctx, wp, NULL);
screen_write_cursormove(&ctx, 0, 0);
screen_write_insertline(&ctx, ny, 8);
window_copy_write_lines(wp, &ctx, 0, ny);
if (s->sel.flag && screen_size_y(s) > ny)
window_copy_write_line(wp, &ctx, ny);
else if (ny == 1) /* nuke position */
window_copy_write_line(wp, &ctx, 1);
screen_write_cursormove(&ctx, data->cx, data->cy);
screen_write_stop(&ctx);
}
int
window_copy_scroll_position(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
if (wp->mode != &window_copy_mode)
return (-1);
return (data->oy);
}
static void
window_copy_rectangle_toggle(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
u_int px, py;
data->rectflag = !data->rectflag;
py = screen_hsize(data->backing) + data->cy - data->oy;
px = window_copy_find_length(wp, py);
if (data->cx > px)
window_copy_update_cursor(wp, px, data->cy);
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
static void
window_copy_move_mouse(struct mouse_event *m)
{
struct window_pane *wp;
u_int x, y;
wp = cmd_mouse_pane(m, NULL, NULL);
if (wp == NULL || wp->mode != &window_copy_mode)
return;
if (cmd_mouse_at(wp, m, &x, &y, 1) != 0)
return;
window_copy_update_cursor(wp, x, y);
}
void
window_copy_start_drag(struct client *c, struct mouse_event *m)
{
struct window_pane *wp;
u_int x, y;
if (c == NULL)
return;
wp = cmd_mouse_pane(m, NULL, NULL);
if (wp == NULL || wp->mode != &window_copy_mode)
return;
if (cmd_mouse_at(wp, m, &x, &y, 1) != 0)
return;
c->tty.mouse_drag_update = window_copy_drag_update;
c->tty.mouse_drag_release = NULL; /* will fire MouseDragEnd key */
window_copy_update_cursor(wp, x, y);
window_copy_start_selection(wp);
window_copy_redraw_screen(wp);
}
static void
window_copy_drag_update(__unused struct client *c, struct mouse_event *m)
{
struct window_pane *wp;
struct window_copy_mode_data *data;
u_int x, y, old_cy;
wp = cmd_mouse_pane(m, NULL, NULL);
if (wp == NULL || wp->mode != &window_copy_mode)
return;
data = wp->modedata;
if (cmd_mouse_at(wp, m, &x, &y, 0) != 0)
return;
old_cy = data->cy;
window_copy_update_cursor(wp, x, y);
if (window_copy_update_selection(wp, 1))
window_copy_redraw_selection(wp, old_cy);
}