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tmux/window-copy.c

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/* $OpenBSD$ */
/*
* 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 int 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 int window_copy_search_marks(struct window_pane *, struct screen *);
static void window_copy_clear_marks(struct window_pane *);
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 int window_copy_search_jump(struct window_pane *, struct grid *,
struct grid *, u_int, u_int, u_int, int, int, int);
static int window_copy_search(struct window_pane *, int, int);
static int window_copy_search_up(struct window_pane *, int);
static int window_copy_search_down(struct window_pane *, 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_adjust_selection(struct window_pane *, u_int *,
u_int *);
static int window_copy_update_selection(struct window_pane *, int);
static void window_copy_synchronize_cursor(struct window_pane *wp);
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,
};
enum {
WINDOW_COPY_REL_POS_ABOVE,
WINDOW_COPY_REL_POS_ON_SCREEN,
WINDOW_COPY_REL_POS_BELOW,
};
/*
* 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; /* number of lines scrolled up */
u_int selx; /* beginning of selection */
u_int sely;
u_int endselx; /* end of selection */
u_int endsely;
enum {
CURSORDRAG_NONE, /* selection is independent of cursor */
CURSORDRAG_ENDSEL, /* end is synchronized with cursor */
CURSORDRAG_SEL, /* start is synchronized with cursor */
} cursordrag;
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;
bitstr_t *searchmark;
int searchx;
int searchy;
int searcho;
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->cursordrag = CURSORDRAG_NONE;
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;
data->searchmark = NULL;
data->searchx = data->searchy = data->searcho = -1;
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->searchmark);
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, px, py;
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) {
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);
}
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
static int
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, px, py;
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) {
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 (data->scroll_exit && data->oy == 0)
return (1);
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
return (0);
}
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);
if (data->searchmark != NULL)
window_copy_search_marks(wp, NULL);
data->searchx = data->cx;
data->searchy = data->cy;
data->searcho = data->oy;
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;
u_int np = wp->modeprefix;
int cancel = 0, redraw = 0;
char prefix;
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);
redraw = 1;
}
if (strcmp(command, "append-selection-and-cancel") == 0) {
if (s != NULL)
window_copy_append_selection(wp, NULL);
window_copy_clear_selection(wp);
redraw = 1;
cancel = 1;
}
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);
redraw = 1;
}
}
if (strcmp(command, "stop-selection") == 0)
data->cursordrag = CURSORDRAG_NONE;
if (strcmp(command, "bottom-line") == 0) {
data->cx = 0;
data->cy = screen_size_y(sn) - 1;
window_copy_update_selection(wp, 1);
redraw = 1;
}
if (strcmp(command, "cancel") == 0)
cancel = 1;
if (strcmp(command, "clear-selection") == 0) {
window_copy_clear_selection(wp);
redraw = 1;
}
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);
redraw = 1;
if (s != NULL) {
window_copy_copy_selection(wp, NULL);
cancel = 1;
}
}
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);
redraw = 1;
if (s != NULL) {
window_copy_copy_selection(wp, NULL);
cancel = 1;
}
}
if (strcmp(command, "copy-selection") == 0) {
if (s != NULL)
window_copy_copy_selection(wp, NULL);
window_copy_clear_selection(wp);
redraw = 1;
}
if (strcmp(command, "copy-selection-and-cancel") == 0) {
if (s != NULL)
window_copy_copy_selection(wp, NULL);
window_copy_clear_selection(wp);
redraw = 1;
cancel = 1;
}
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--) {
if (window_copy_pagedown(wp, 1)) {
cancel = 1;
break;
}
}
}
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);
redraw = 1;
}
if (strcmp(command, "history-top") == 0) {
data->cx = 0;
data->cy = 0;
data->oy = screen_hsize(data->backing);
window_copy_update_selection(wp, 1);
redraw = 1;
}
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);
redraw = 1;
}
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--) {
if (window_copy_pagedown(wp, 0)) {
cancel = 1;
break;
}
}
}
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)
cancel = 1;
}
if (strcmp(command, "scroll-up") == 0) {
for (; np != 0; np--)
window_copy_cursor_up(wp, 1);
}
if (strcmp(command, "search-again") == 0) {
if (data->searchtype == WINDOW_COPY_SEARCHUP) {
for (; np != 0; np--)
window_copy_search_up(wp, 1);
} else if (data->searchtype == WINDOW_COPY_SEARCHDOWN) {
for (; np != 0; np--)
window_copy_search_down(wp, 1);
}
}
if (strcmp(command, "search-reverse") == 0) {
if (data->searchtype == WINDOW_COPY_SEARCHUP) {
for (; np != 0; np--)
window_copy_search_down(wp, 1);
} else if (data->searchtype == WINDOW_COPY_SEARCHDOWN) {
for (; np != 0; np--)
window_copy_search_up(wp, 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);
redraw = 1;
}
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);
redraw = 1;
}
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);
redraw = 1;
}
} 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);
}
if (strcmp(command, "copy-pipe-and-cancel") == 0) {
if (s != NULL) {
window_copy_copy_pipe(wp, s, NULL, argument);
cancel = 1;
}
}
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;
free(data->searchstr);
data->searchstr = xstrdup(argument);
for (; np != 0; np--)
window_copy_search_up(wp, 1);
}
if (strcmp(command, "search-forward") == 0) {
data->searchtype = WINDOW_COPY_SEARCHDOWN;
free(data->searchstr);
data->searchstr = xstrdup(argument);
for (; np != 0; np--)
window_copy_search_down(wp, 1);
}
if (strcmp(command, "search-backward-incremental") == 0) {
prefix = *argument++;
if (data->searchx == -1 || data->searchy == -1) {
data->searchx = data->cx;
data->searchy = data->cy;
data->searcho = data->oy;
} else if (data->searchstr != NULL &&
strcmp(argument, data->searchstr) != 0) {
data->cx = data->searchx;
data->cy = data->searchy;
data->oy = data->searcho;
redraw = 1;
}
if (*argument == '\0') {
window_copy_clear_marks(wp);
redraw = 1;
} else if (prefix == '=' || prefix == '-') {
data->searchtype = WINDOW_COPY_SEARCHUP;
free(data->searchstr);
data->searchstr = xstrdup(argument);
if (!window_copy_search_up(wp, 1)) {
window_copy_clear_marks(wp);
redraw = 1;
}
} else if (prefix == '+') {
data->searchtype = WINDOW_COPY_SEARCHDOWN;
free(data->searchstr);
data->searchstr = xstrdup(argument);
if (!window_copy_search_down(wp, 1)) {
window_copy_clear_marks(wp);
redraw = 1;
}
}
}
if (strcmp(command, "search-forward-incremental") == 0) {
prefix = *argument++;
if (data->searchx == -1 || data->searchy == -1) {
data->searchx = data->cx;
data->searchy = data->cy;
data->searcho = data->oy;
} else if (data->searchstr != NULL &&
strcmp(argument, data->searchstr) != 0) {
data->cx = data->searchx;
data->cy = data->searchy;
data->oy = data->searcho;
redraw = 1;
}
if (*argument == '\0') {
window_copy_clear_marks(wp);
redraw = 1;
} else if (prefix == '=' || prefix == '+') {
data->searchtype = WINDOW_COPY_SEARCHDOWN;
free(data->searchstr);
data->searchstr = xstrdup(argument);
if (!window_copy_search_down(wp, 1)) {
window_copy_clear_marks(wp);
redraw = 1;
}
} else if (prefix == '-') {
data->searchtype = WINDOW_COPY_SEARCHUP;
free(data->searchstr);
data->searchstr = xstrdup(argument);
if (!window_copy_search_up(wp, 1)) {
window_copy_clear_marks(wp);
redraw = 1;
}
}
}
}
if (strncmp(command, "search-", 7) != 0 && data->searchmark != NULL) {
window_copy_clear_marks(wp);
redraw = 1;
data->searchx = data->searchy = -1;
}
if (cancel)
window_pane_reset_mode(wp);
else if (redraw)
window_copy_redraw_screen(wp);
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 int
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);
return (1);
}
if (wrap) {
return (window_copy_search_jump(wp, gd, sgd,
direction ? 0 : gd->sx - 1,
direction ? 0 : gd->hsize + gd->sy - 1, fy, cis, 0,
direction));
}
return (0);
}
/*
* 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 int
window_copy_search(struct window_pane *wp, 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, found;
fx = data->cx;
fy = screen_hsize(data->backing) - data->oy + data->cy;
screen_init(&ss, screen_write_strlen("%s", data->searchstr), 1, 0);
screen_write_start(&ctx, NULL, &ss);
screen_write_nputs(&ctx, -1, &grid_default_cell, "%s", data->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(data->searchstr);
if (direction)
endline = gd->hsize + gd->sy - 1;
else
endline = 0;
found = window_copy_search_jump(wp, gd, ss.grid, fx, fy, endline, cis,
wrapflag, direction);
if (window_copy_search_marks(wp, &ss))
window_copy_redraw_screen(wp);
screen_free(&ss);
return (found);
}
static int
window_copy_search_marks(struct window_pane *wp, struct screen *ssp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = data->backing, ss;
struct screen_write_ctx ctx;
struct grid *gd = s->grid;
int found, cis;
u_int px, py, b, nfound = 0, width;
if (ssp == NULL) {
width = screen_write_strlen("%s", data->searchstr);
screen_init(&ss, width, 1, 0);
screen_write_start(&ctx, NULL, &ss);
screen_write_nputs(&ctx, -1, &grid_default_cell, "%s",
data->searchstr);
screen_write_stop(&ctx);
ssp = &ss;
} else
width = screen_size_x(ssp);
cis = window_copy_is_lowercase(data->searchstr);
free(data->searchmark);
data->searchmark = bit_alloc((gd->hsize + gd->sy) * gd->sx);
for (py = 0; py < gd->hsize + gd->sy; py++) {
px = 0;
for (;;) {
found = window_copy_search_lr(gd, ssp->grid, &px, py,
px, gd->sx, cis);
if (!found)
break;
nfound++;
b = (py * gd->sx) + px;
bit_nset(data->searchmark, b, b + width - 1);
px++;
}
}
if (ssp == &ss)
screen_free(&ss);
return (nfound);
}
static void
window_copy_clear_marks(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
free(data->searchmark);
data->searchmark = NULL;
}
static int
window_copy_search_up(struct window_pane *wp, int moveflag)
{
return (window_copy_search(wp, 0, moveflag));
}
static int
window_copy_search_down(struct window_pane *wp, int moveflag)
{
return (window_copy_search(wp, 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 size = 0;
style_apply(&gc, oo, "mode-style");
gc.flags |= GRID_FLAG_NOPALETTE;
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, 0, py);
screen_write_copy(ctx, data->backing, 0,
(screen_hsize(data->backing) - data->oy) + py,
screen_size_x(s) - size, 1, data->searchmark, &gc);
}
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_synchronize_cursor(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
u_int xx, yy;
xx = data->cx;
yy = screen_hsize(data->backing) + data->cy - data->oy;
switch (data->cursordrag) {
case CURSORDRAG_ENDSEL:
data->endselx = xx;
data->endsely = yy;
break;
case CURSORDRAG_SEL:
data->selx = xx;
data->sely = yy;
break;
case CURSORDRAG_NONE:
break;
}
}
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;
data->endselx = data->selx;
data->endsely = data->sely;
data->cursordrag = CURSORDRAG_ENDSEL;
s->sel.flag = 1;
window_copy_update_selection(wp, 1);
}
static int
window_copy_adjust_selection(struct window_pane *wp, u_int *selx, u_int *sely)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int sx, sy, ty;
int relpos;
sx = *selx;
sy = *sely;
ty = screen_hsize(data->backing) - data->oy;
if (sy < ty) {
relpos = WINDOW_COPY_REL_POS_ABOVE;
if (!data->rectflag)
sx = 0;
sy = 0;
} else if (sy > ty + screen_size_y(s) - 1) {
relpos = WINDOW_COPY_REL_POS_BELOW;
if (!data->rectflag)
sx = screen_size_x(s) - 1;
sy = screen_size_y(s) - 1;
} else {
relpos = WINDOW_COPY_REL_POS_ON_SCREEN;
sy -= ty;
}
*selx = sx;
*sely = screen_hsize(s) + sy;
return (relpos);
}
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, cy, endsx, endsy;
int startrelpos, endrelpos;
if (!s->sel.flag && s->sel.lineflag == LINE_SEL_NONE)
return (0);
window_copy_synchronize_cursor(wp);
/* Adjust the selection. */
sx = data->selx;
sy = data->sely;
startrelpos = window_copy_adjust_selection(wp, &sx, &sy);
/* Adjust the end of selection. */
endsx = data->endselx;
endsy = data->endsely;
endrelpos = window_copy_adjust_selection(wp, &endsx, &endsy);
/* Selection is outside of the current screen */
if (startrelpos == endrelpos &&
startrelpos != WINDOW_COPY_REL_POS_ON_SCREEN) {
screen_hide_selection(s);
return (0);
}
/* Set colours and selection. */
style_apply(&gc, oo, "mode-style");
gc.flags |= GRID_FLAG_NOPALETTE;
screen_set_selection(s, sx, sy, endsx, endsy, 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->endselx;
yy = data->endsely;
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 *s,
const char *bufname, const char *arg)
{
void *buf;
size_t len;
struct job *job;
char *expanded;
buf = window_copy_get_selection(wp, &len);
if (buf == NULL)
return;
expanded = format_single(NULL, arg, NULL, s, NULL, wp);
job = job_run(expanded, s, NULL, NULL, NULL, NULL);
bufferevent_write(job->event, buf, len);
free(expanded);
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);
data->cursordrag = CURSORDRAG_NONE;
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, 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;
switch (data->cursordrag) {
case CURSORDRAG_NONE:
case CURSORDRAG_SEL:
data->cursordrag = CURSORDRAG_ENDSEL;
break;
case CURSORDRAG_ENDSEL:
data->cursordrag = CURSORDRAG_SEL;
break;
}
selx = data->endselx;
sely = data->endsely;
if (data->cursordrag == CURSORDRAG_SEL) {
selx = data->selx;
sely = data->sely;
}
cy = data->cy;
yy = screen_hsize(data->backing) + data->cy - data->oy;
data->cx = selx;
hsize = screen_hsize(data->backing);
if (sely < hsize - data->oy) { /* above */
data->oy = hsize - sely;
data->cy = 0;
} else if (sely > hsize - data->oy + screen_size_y(s)) { /* below */
data->oy = hsize - sely + screen_size_y(s) - 1;
data->cy = screen_size_y(s) - 1;
} else
data->cy = cy + sely - yy;
window_copy_update_selection(wp, 1);
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, cx;
struct grid_cell gc;
py = screen_hsize(data->backing) + data->cy - data->oy;
cx = data->cx;
while (cx > 0) {
grid_get_cell(data->backing->grid, cx, py, &gc);
if (~gc.flags & GRID_FLAG_PADDING)
break;
cx--;
}
if (cx == 0 && py > 0) {
window_copy_cursor_up(wp, 0);
window_copy_cursor_end_of_line(wp);
} else if (cx > 0) {
window_copy_update_cursor(wp, 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, cx, cy;
struct grid_cell gc;
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) {
cx = data->cx + 1;
cy = screen_hsize(data->backing) + data->cy - data->oy;
while (cx < px) {
grid_get_cell(data->backing->grid, cx, cy, &gc);
if (~gc.flags & GRID_FLAG_PADDING)
break;
cx++;
}
window_copy_update_cursor(wp, cx, 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->endsely)
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);
}
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