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phunix/external/bsd/tmux/dist/window-copy.c
David van Moolenbroek eda6f5931d Import tmux 
We have to use SOCK_SEQPACKET instead of SOCK_STREAM for client/server
communication, because UDS does things with control messages that tmux
does not expect.

Change-Id: I3edb1875d61fb976cf6485c650f4fd4b82fa354c
2014-10-03 10:01:08 +00:00

1911 lines
48 KiB
C
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/* $Id: window-copy.c,v 1.2 2011/08/17 19:28:36 jmmv Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* 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 <stdlib.h>
#include <string.h>
#include "tmux.h"
struct screen *window_copy_init(struct window_pane *);
void window_copy_free(struct window_pane *);
void window_copy_resize(struct window_pane *, u_int, u_int);
void window_copy_key(struct window_pane *, struct session *, int);
int window_copy_key_input(struct window_pane *, int);
int window_copy_key_numeric_prefix(struct window_pane *, int);
void window_copy_mouse(
struct window_pane *, struct session *, struct mouse_event *);
void window_copy_redraw_lines(struct window_pane *, u_int, u_int);
void window_copy_redraw_screen(struct window_pane *);
void window_copy_write_line(
struct window_pane *, struct screen_write_ctx *, u_int);
void window_copy_write_lines(
struct window_pane *, struct screen_write_ctx *, u_int, u_int);
void window_copy_scroll_to(struct window_pane *, u_int, u_int);
int window_copy_search_compare(
struct grid *, u_int, u_int, struct grid *, u_int);
int window_copy_search_lr(
struct grid *, struct grid *, u_int *, u_int, u_int, u_int);
int window_copy_search_rl(
struct grid *, struct grid *, u_int *, u_int, u_int, u_int);
void window_copy_search_up(struct window_pane *, const char *);
void window_copy_search_down(struct window_pane *, const char *);
void window_copy_goto_line(struct window_pane *, const char *);
void window_copy_update_cursor(struct window_pane *, u_int, u_int);
void window_copy_start_selection(struct window_pane *);
int window_copy_update_selection(struct window_pane *);
void window_copy_copy_selection(struct window_pane *);
void window_copy_clear_selection(struct window_pane *);
void window_copy_copy_line(
struct window_pane *, char **, size_t *, u_int, u_int, u_int);
int window_copy_in_set(struct window_pane *, u_int, u_int, const char *);
u_int window_copy_find_length(struct window_pane *, u_int);
void window_copy_cursor_start_of_line(struct window_pane *);
void window_copy_cursor_back_to_indentation(struct window_pane *);
void window_copy_cursor_end_of_line(struct window_pane *);
void window_copy_cursor_left(struct window_pane *);
void window_copy_cursor_right(struct window_pane *);
void window_copy_cursor_up(struct window_pane *, int);
void window_copy_cursor_down(struct window_pane *, int);
void window_copy_cursor_jump(struct window_pane *);
void window_copy_cursor_jump_back(struct window_pane *);
void window_copy_cursor_next_word(struct window_pane *, const char *);
void window_copy_cursor_next_word_end(struct window_pane *, const char *);
void window_copy_cursor_previous_word(struct window_pane *, const char *);
void window_copy_scroll_up(struct window_pane *, u_int);
void window_copy_scroll_down(struct window_pane *, u_int);
void window_copy_rectangle_toggle(struct window_pane *);
const struct window_mode window_copy_mode = {
window_copy_init,
window_copy_free,
window_copy_resize,
window_copy_key,
window_copy_mouse,
NULL,
};
enum window_copy_input_type {
WINDOW_COPY_OFF,
WINDOW_COPY_NUMERICPREFIX,
WINDOW_COPY_SEARCHUP,
WINDOW_COPY_SEARCHDOWN,
WINDOW_COPY_JUMPFORWARD,
WINDOW_COPY_JUMPBACK,
WINDOW_COPY_GOTOLINE,
};
/*
* 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 has started */
struct mode_key_data mdata;
u_int oy;
u_int selx;
u_int sely;
u_int rectflag; /* are we in rectangle copy mode? */
u_int cx;
u_int cy;
u_int lastcx; /* position in last line with content */
u_int lastsx; /* size of last line with content */
enum window_copy_input_type inputtype;
const char *inputprompt;
char *inputstr;
u_int numprefix;
enum window_copy_input_type searchtype;
char *searchstr;
enum window_copy_input_type jumptype;
char jumpchar;
};
struct screen *
window_copy_init(struct window_pane *wp)
{
struct window_copy_mode_data *data;
struct screen *s;
int keys;
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->inputtype = WINDOW_COPY_OFF;
data->inputprompt = NULL;
data->inputstr = xstrdup("");
data->numprefix = 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);
if (options_get_number(&wp->window->options, "mode-mouse"))
s->mode |= MODE_MOUSE_STANDARD;
keys = options_get_number(&wp->window->options, "mode-keys");
if (keys == MODEKEY_EMACS)
mode_key_init(&data->mdata, &mode_key_tree_emacs_copy);
else
mode_key_init(&data->mdata, &mode_key_tree_vi_copy);
data->backing = NULL;
return (s);
}
void
window_copy_init_from_pane(struct window_pane *wp)
{
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;
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);
data->backing->mode &= ~MODE_WRAP;
}
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);
if (data->searchstr != NULL)
xfree(data->searchstr);
xfree(data->inputstr);
if (data->backing != &wp->base) {
screen_free(data->backing);
xfree(data->backing);
}
screen_free(&data->screen);
xfree(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;
int utf8flag;
u_int old_hsize;
if (backing == &wp->base)
return;
utf8flag = options_get_number(&wp->window->options, "utf8");
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;
screen_write_vnputs(&back_ctx, 0, &gc, utf8flag, 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 line, if it's visible. */
if (backing->cy + data->oy < screen_size_y(backing))
window_copy_redraw_lines(wp, backing->cy, 1);
screen_write_stop(&ctx);
}
void
window_copy_pageup(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int n;
n = 1;
if (screen_size_y(s) > 2)
n = screen_size_y(s) - 2;
if (data->oy + n > screen_hsize(data->backing))
data->oy = screen_hsize(data->backing);
else
data->oy += n;
window_copy_update_selection(wp);
window_copy_redraw_screen(wp);
}
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);
if (data->backing != &wp->base)
screen_resize(data->backing, sx, sy);
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);
}
void
window_copy_key(struct window_pane *wp, struct session *sess, int key)
{
const char *word_separators;
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int n, np;
int keys;
enum mode_key_cmd cmd;
np = data->numprefix;
if (np == 0)
np = 1;
if (data->inputtype == WINDOW_COPY_JUMPFORWARD ||
data->inputtype == WINDOW_COPY_JUMPBACK) {
/* Ignore keys with modifiers. */
if ((key & KEYC_MASK_MOD) == 0) {
data->jumpchar = key;
if (data->inputtype == WINDOW_COPY_JUMPFORWARD) {
for (; np != 0; np--)
window_copy_cursor_jump(wp);
} else {
for (; np != 0; np--)
window_copy_cursor_jump_back(wp);
}
}
data->jumptype = data->inputtype;
data->inputtype = WINDOW_COPY_OFF;
window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
return;
} else if (data->inputtype == WINDOW_COPY_NUMERICPREFIX) {
if (window_copy_key_numeric_prefix(wp, key) == 0)
return;
data->inputtype = WINDOW_COPY_OFF;
window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
} else if (data->inputtype != WINDOW_COPY_OFF) {
if (window_copy_key_input(wp, key) != 0)
goto input_off;
return;
}
cmd = mode_key_lookup(&data->mdata, key);
switch (cmd) {
case MODEKEYCOPY_CANCEL:
window_pane_reset_mode(wp);
return;
case MODEKEYCOPY_LEFT:
for (; np != 0; np--)
window_copy_cursor_left(wp);
break;
case MODEKEYCOPY_RIGHT:
for (; np != 0; np--)
window_copy_cursor_right(wp);
break;
case MODEKEYCOPY_UP:
for (; np != 0; np--)
window_copy_cursor_up(wp, 0);
break;
case MODEKEYCOPY_DOWN:
for (; np != 0; np--)
window_copy_cursor_down(wp, 0);
break;
case MODEKEYCOPY_SCROLLUP:
for (; np != 0; np--)
window_copy_cursor_up(wp, 1);
break;
case MODEKEYCOPY_SCROLLDOWN:
for (; np != 0; np--)
window_copy_cursor_down(wp, 1);
break;
case MODEKEYCOPY_PREVIOUSPAGE:
for (; np != 0; np--)
window_copy_pageup(wp);
break;
case MODEKEYCOPY_NEXTPAGE:
n = 1;
if (screen_size_y(s) > 2)
n = screen_size_y(s) - 2;
for (; np != 0; np--) {
if (data->oy < n)
data->oy = 0;
else
data->oy -= n;
}
window_copy_update_selection(wp);
window_copy_redraw_screen(wp);
break;
case MODEKEYCOPY_HALFPAGEUP:
n = screen_size_y(s) / 2;
for (; np != 0; np--) {
if (data->oy + n > screen_hsize(data->backing))
data->oy = screen_hsize(data->backing);
else
data->oy += n;
}
window_copy_update_selection(wp);
window_copy_redraw_screen(wp);
break;
case MODEKEYCOPY_HALFPAGEDOWN:
n = screen_size_y(s) / 2;
for (; np != 0; np--) {
if (data->oy < n)
data->oy = 0;
else
data->oy -= n;
}
window_copy_update_selection(wp);
window_copy_redraw_screen(wp);
break;
case MODEKEYCOPY_TOPLINE:
data->cx = 0;
data->cy = 0;
window_copy_update_selection(wp);
window_copy_redraw_screen(wp);
break;
case MODEKEYCOPY_MIDDLELINE:
data->cx = 0;
data->cy = (screen_size_y(s) - 1) / 2;
window_copy_update_selection(wp);
window_copy_redraw_screen(wp);
break;
case MODEKEYCOPY_BOTTOMLINE:
data->cx = 0;
data->cy = screen_size_y(s) - 1;
window_copy_update_selection(wp);
window_copy_redraw_screen(wp);
break;
case MODEKEYCOPY_HISTORYTOP:
data->cx = 0;
data->cy = 0;
data->oy = screen_hsize(data->backing);
window_copy_update_selection(wp);
window_copy_redraw_screen(wp);
break;
case MODEKEYCOPY_HISTORYBOTTOM:
data->cx = 0;
data->cy = screen_size_y(s) - 1;
data->oy = 0;
window_copy_update_selection(wp);
window_copy_redraw_screen(wp);
break;
case MODEKEYCOPY_STARTSELECTION:
window_copy_start_selection(wp);
window_copy_redraw_screen(wp);
break;
case MODEKEYCOPY_COPYLINE:
case MODEKEYCOPY_SELECTLINE:
window_copy_cursor_start_of_line(wp);
/* FALLTHROUGH */
case MODEKEYCOPY_COPYENDOFLINE:
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 a copy command then copy the selection and exit. */
if (sess != NULL &&
(cmd == MODEKEYCOPY_COPYLINE ||
cmd == MODEKEYCOPY_COPYENDOFLINE)) {
window_copy_copy_selection(wp);
window_pane_reset_mode(wp);
return;
}
break;
case MODEKEYCOPY_CLEARSELECTION:
window_copy_clear_selection(wp);
window_copy_redraw_screen(wp);
break;
case MODEKEYCOPY_COPYSELECTION:
if (sess != NULL) {
window_copy_copy_selection(wp);
window_pane_reset_mode(wp);
return;
}
break;
case MODEKEYCOPY_STARTOFLINE:
window_copy_cursor_start_of_line(wp);
break;
case MODEKEYCOPY_BACKTOINDENTATION:
window_copy_cursor_back_to_indentation(wp);
break;
case MODEKEYCOPY_ENDOFLINE:
window_copy_cursor_end_of_line(wp);
break;
case MODEKEYCOPY_NEXTSPACE:
for (; np != 0; np--)
window_copy_cursor_next_word(wp, " ");
break;
case MODEKEYCOPY_NEXTSPACEEND:
for (; np != 0; np--)
window_copy_cursor_next_word_end(wp, " ");
break;
case MODEKEYCOPY_NEXTWORD:
word_separators =
options_get_string(&wp->window->options, "word-separators");
for (; np != 0; np--)
window_copy_cursor_next_word(wp, word_separators);
break;
case MODEKEYCOPY_NEXTWORDEND:
word_separators =
options_get_string(&wp->window->options, "word-separators");
for (; np != 0; np--)
window_copy_cursor_next_word_end(wp, word_separators);
break;
case MODEKEYCOPY_PREVIOUSSPACE:
for (; np != 0; np--)
window_copy_cursor_previous_word(wp, " ");
break;
case MODEKEYCOPY_PREVIOUSWORD:
word_separators =
options_get_string(&wp->window->options, "word-separators");
for (; np != 0; np--)
window_copy_cursor_previous_word(wp, word_separators);
break;
case MODEKEYCOPY_JUMP:
data->inputtype = WINDOW_COPY_JUMPFORWARD;
data->inputprompt = "Jump Forward";
*data->inputstr = '\0';
window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
return; /* skip numprefix reset */
case MODEKEYCOPY_JUMPAGAIN:
if (data->jumptype == WINDOW_COPY_JUMPFORWARD) {
for (; np != 0; np--)
window_copy_cursor_jump(wp);
} else if (data->jumptype == WINDOW_COPY_JUMPBACK) {
for (; np != 0; np--)
window_copy_cursor_jump_back(wp);
}
break;
case MODEKEYCOPY_JUMPREVERSE:
if (data->jumptype == WINDOW_COPY_JUMPFORWARD) {
for (; np != 0; np--)
window_copy_cursor_jump_back(wp);
} else if (data->jumptype == WINDOW_COPY_JUMPBACK) {
for (; np != 0; np--)
window_copy_cursor_jump(wp);
}
break;
case MODEKEYCOPY_JUMPBACK:
data->inputtype = WINDOW_COPY_JUMPBACK;
data->inputprompt = "Jump Back";
*data->inputstr = '\0';
window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
return; /* skip numprefix reset */
case MODEKEYCOPY_SEARCHUP:
data->inputtype = WINDOW_COPY_SEARCHUP;
data->inputprompt = "Search Up";
goto input_on;
case MODEKEYCOPY_SEARCHDOWN:
data->inputtype = WINDOW_COPY_SEARCHDOWN;
data->inputprompt = "Search Down";
goto input_on;
case MODEKEYCOPY_SEARCHAGAIN:
case MODEKEYCOPY_SEARCHREVERSE:
switch (data->searchtype) {
case WINDOW_COPY_OFF:
case WINDOW_COPY_GOTOLINE:
case WINDOW_COPY_JUMPFORWARD:
case WINDOW_COPY_JUMPBACK:
case WINDOW_COPY_NUMERICPREFIX:
break;
case WINDOW_COPY_SEARCHUP:
if (cmd == MODEKEYCOPY_SEARCHAGAIN) {
for (; np != 0; np--) {
window_copy_search_up(
wp, data->searchstr);
}
} else {
for (; np != 0; np--) {
window_copy_search_down(
wp, data->searchstr);
}
}
break;
case WINDOW_COPY_SEARCHDOWN:
if (cmd == MODEKEYCOPY_SEARCHAGAIN) {
for (; np != 0; np--) {
window_copy_search_down(
wp, data->searchstr);
}
} else {
for (; np != 0; np--) {
window_copy_search_up(
wp, data->searchstr);
}
}
break;
}
break;
case MODEKEYCOPY_GOTOLINE:
data->inputtype = WINDOW_COPY_GOTOLINE;
data->inputprompt = "Goto Line";
*data->inputstr = '\0';
goto input_on;
case MODEKEYCOPY_STARTNUMBERPREFIX:
key &= KEYC_MASK_KEY;
if (key >= '0' && key <= '9') {
data->inputtype = WINDOW_COPY_NUMERICPREFIX;
data->numprefix = 0;
window_copy_key_numeric_prefix(wp, key);
return;
}
break;
case MODEKEYCOPY_RECTANGLETOGGLE:
window_copy_rectangle_toggle(wp);
break;
default:
break;
}
data->numprefix = 0;
return;
input_on:
keys = options_get_number(&wp->window->options, "mode-keys");
if (keys == MODEKEY_EMACS)
mode_key_init(&data->mdata, &mode_key_tree_emacs_edit);
else
mode_key_init(&data->mdata, &mode_key_tree_vi_edit);
window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
return;
input_off:
keys = options_get_number(&wp->window->options, "mode-keys");
if (keys == MODEKEY_EMACS)
mode_key_init(&data->mdata, &mode_key_tree_emacs_copy);
else
mode_key_init(&data->mdata, &mode_key_tree_vi_copy);
data->inputtype = WINDOW_COPY_OFF;
data->inputprompt = NULL;
window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
}
int
window_copy_key_input(struct window_pane *wp, int key)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
size_t inputlen;
u_int np;
switch (mode_key_lookup(&data->mdata, key)) {
case MODEKEYEDIT_CANCEL:
data->numprefix = 0;
return (-1);
case MODEKEYEDIT_BACKSPACE:
inputlen = strlen(data->inputstr);
if (inputlen > 0)
data->inputstr[inputlen - 1] = '\0';
break;
case MODEKEYEDIT_DELETELINE:
*data->inputstr = '\0';
break;
case MODEKEYEDIT_ENTER:
np = data->numprefix;
if (np == 0)
np = 1;
switch (data->inputtype) {
case WINDOW_COPY_OFF:
case WINDOW_COPY_JUMPFORWARD:
case WINDOW_COPY_JUMPBACK:
case WINDOW_COPY_NUMERICPREFIX:
break;
case WINDOW_COPY_SEARCHUP:
for (; np != 0; np--)
window_copy_search_up(wp, data->inputstr);
data->searchtype = data->inputtype;
data->searchstr = xstrdup(data->inputstr);
break;
case WINDOW_COPY_SEARCHDOWN:
for (; np != 0; np--)
window_copy_search_down(wp, data->inputstr);
data->searchtype = data->inputtype;
data->searchstr = xstrdup(data->inputstr);
break;
case WINDOW_COPY_GOTOLINE:
window_copy_goto_line(wp, data->inputstr);
*data->inputstr = '\0';
break;
}
data->numprefix = 0;
return (1);
case MODEKEY_OTHER:
if (key < 32 || key > 126)
break;
inputlen = strlen(data->inputstr) + 2;
data->inputstr = xrealloc(data->inputstr, 1, inputlen);
data->inputstr[inputlen - 2] = key;
data->inputstr[inputlen - 1] = '\0';
break;
default:
break;
}
window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
return (0);
}
int
window_copy_key_numeric_prefix(struct window_pane *wp, int key)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
key &= KEYC_MASK_KEY;
if (key < '0' || key > '9')
return 1;
if (data->numprefix >= 100) /* no more than three digits */
return 0;
data->numprefix = data->numprefix * 10 + key - '0';
window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
return 0;
}
/* ARGSUSED */
void
window_copy_mouse(
struct window_pane *wp, struct session *sess, struct mouse_event *m)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int i, old_cy;
if (m->x >= screen_size_x(s))
return;
if (m->y >= screen_size_y(s))
return;
/* If mouse wheel (buttons 4 and 5), scroll. */
if ((m->b & MOUSE_45)) {
if ((m->b & MOUSE_BUTTON) == MOUSE_1) {
for (i = 0; i < 5; i++)
window_copy_cursor_up(wp, 0);
} else if ((m->b & MOUSE_BUTTON) == MOUSE_2) {
old_cy = data->cy;
for (i = 0; i < 5; i++)
window_copy_cursor_down(wp, 0);
if (old_cy == data->cy)
goto reset_mode;
}
return;
}
/*
* If already reading motion, move the cursor while buttons are still
* pressed, or stop the selection on their release.
*/
if (s->mode & MODE_MOUSE_BUTTON) {
if ((m->b & MOUSE_BUTTON) != MOUSE_UP) {
window_copy_update_cursor(wp, m->x, m->y);
if (window_copy_update_selection(wp))
window_copy_redraw_screen(wp);
return;
}
goto reset_mode;
}
/* Otherwise if other buttons pressed, start selection and motion. */
if ((m->b & MOUSE_BUTTON) != MOUSE_UP) {
s->mode &= ~MODE_MOUSE_STANDARD;
s->mode |= MODE_MOUSE_BUTTON;
window_copy_update_cursor(wp, m->x, m->y);
window_copy_start_selection(wp);
window_copy_redraw_screen(wp);
}
return;
reset_mode:
s->mode &= ~MODE_MOUSE_BUTTON;
s->mode |= MODE_MOUSE_STANDARD;
if (sess != NULL) {
window_copy_copy_selection(wp);
window_pane_reset_mode(wp);
}
}
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);
window_copy_redraw_screen(wp);
}
int
window_copy_search_compare(
struct grid *gd, u_int px, u_int py, struct grid *sgd, u_int spx)
{
const struct grid_cell *gc, *sgc;
const struct grid_utf8 *gu, *sgu;
gc = grid_peek_cell(gd, px, py);
sgc = grid_peek_cell(sgd, spx, 0);
if ((gc->flags & GRID_FLAG_UTF8) != (sgc->flags & GRID_FLAG_UTF8))
return (0);
if (gc->flags & GRID_FLAG_UTF8) {
gu = grid_peek_utf8(gd, px, py);
sgu = grid_peek_utf8(sgd, spx, 0);
if (grid_utf8_compare(gu, sgu))
return (1);
} else {
if (gc->data == sgc->data)
return (1);
}
return (0);
}
int
window_copy_search_lr(struct grid *gd,
struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last)
{
u_int ax, bx, px;
for (ax = first; ax < last; ax++) {
if (ax + sgd->sx >= gd->sx)
break;
for (bx = 0; bx < sgd->sx; bx++) {
px = ax + bx;
if (!window_copy_search_compare(gd, px, py, sgd, bx))
break;
}
if (bx == sgd->sx) {
*ppx = ax;
return (1);
}
}
return (0);
}
int
window_copy_search_rl(struct grid *gd,
struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last)
{
u_int ax, bx, px;
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;
if (!window_copy_search_compare(gd, px, py, sgd, bx))
break;
}
if (bx == sgd->sx) {
*ppx = ax - 1;
return (1);
}
}
return (0);
}
void
window_copy_search_up(struct window_pane *wp, const char *searchstr)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = data->backing, ss;
struct screen_write_ctx ctx;
struct grid *gd = s->grid, *sgd;
struct grid_cell gc;
size_t searchlen;
u_int i, last, fx, fy, px;
int utf8flag, n, wrapped;
if (*searchstr == '\0')
return;
utf8flag = options_get_number(&wp->window->options, "utf8");
searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
screen_init(&ss, searchlen, 1, 0);
screen_write_start(&ctx, NULL, &ss);
memcpy(&gc, &grid_default_cell, sizeof gc);
screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
screen_write_stop(&ctx);
fx = data->cx;
fy = gd->hsize - data->oy + data->cy;
if (fx == 0) {
if (fy == 0)
return;
fx = gd->sx - 1;
fy--;
} else
fx--;
n = wrapped = 0;
retry:
sgd = ss.grid;
for (i = fy + 1; i > 0; i--) {
last = screen_size_x(s);
if (i == fy + 1)
last = fx;
n = window_copy_search_rl(gd, sgd, &px, i - 1, 0, last);
if (n) {
window_copy_scroll_to(wp, px, i - 1);
break;
}
}
if (!n && !wrapped) {
fx = gd->sx - 1;
fy = gd->hsize + gd->sy - 1;
wrapped = 1;
goto retry;
}
screen_free(&ss);
}
void
window_copy_search_down(struct window_pane *wp, const char *searchstr)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = data->backing, ss;
struct screen_write_ctx ctx;
struct grid *gd = s->grid, *sgd;
struct grid_cell gc;
size_t searchlen;
u_int i, first, fx, fy, px;
int utf8flag, n, wrapped;
if (*searchstr == '\0')
return;
utf8flag = options_get_number(&wp->window->options, "utf8");
searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
screen_init(&ss, searchlen, 1, 0);
screen_write_start(&ctx, NULL, &ss);
memcpy(&gc, &grid_default_cell, sizeof gc);
screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
screen_write_stop(&ctx);
fx = data->cx;
fy = gd->hsize - data->oy + data->cy;
if (fx == gd->sx - 1) {
if (fy == gd->hsize + gd->sy)
return;
fx = 0;
fy++;
} else
fx++;
n = wrapped = 0;
retry:
sgd = ss.grid;
for (i = fy + 1; i < gd->hsize + gd->sy; i++) {
first = 0;
if (i == fy + 1)
first = fx;
n = window_copy_search_lr(gd, sgd, &px, i - 1, first, gd->sx);
if (n) {
window_copy_scroll_to(wp, px, i - 1);
break;
}
}
if (!n && !wrapped) {
fx = 0;
fy = 0;
wrapped = 1;
goto retry;
}
screen_free(&ss);
}
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);
window_copy_redraw_screen(wp);
}
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[32];
size_t last, xoff = 0, size = 0;
memcpy(&gc, &grid_default_cell, sizeof gc);
colour_set_fg(&gc, options_get_number(oo, "mode-fg"));
colour_set_bg(&gc, options_get_number(oo, "mode-bg"));
gc.attr |= options_get_number(oo, "mode-attr");
last = screen_size_y(s) - 1;
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 if (py == last && data->inputtype != WINDOW_COPY_OFF) {
if (data->inputtype == WINDOW_COPY_NUMERICPREFIX) {
xoff = size = xsnprintf(hdr, sizeof hdr,
"Repeat: %u", data->numprefix);
} else {
xoff = size = xsnprintf(hdr, sizeof hdr,
"%s: %s", data->inputprompt, data->inputstr);
}
screen_write_cursormove(ctx, 0, last);
screen_write_puts(ctx, &gc, "%s", hdr);
} else
size = 0;
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, '$');
}
}
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);
}
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);
}
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));
}
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);
}
}
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);
}
int
window_copy_update_selection(struct window_pane *wp)
{
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)
return (0);
/* Set colours. */
memcpy(&gc, &grid_default_cell, sizeof gc);
colour_set_fg(&gc, options_get_number(oo, "mode-fg"));
colour_set_bg(&gc, options_get_number(oo, "mode-bg"));
gc.attr |= options_get_number(oo, "mode-attr");
/* 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) {
/*
* 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);
}
void
window_copy_copy_selection(struct window_pane *wp)
{
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, limit;
u_int firstsx, lastex, restex, restsx;
int keys;
if (!s->sel.flag)
return;
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. */
xx = window_copy_find_length(wp, ey);
if (ex > xx)
ex = xx;
/*
* 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. */
if (sy == ey)
window_copy_copy_line(wp, &buf, &off, sy, firstsx, lastex);
else {
window_copy_copy_line(wp, &buf, &off, sy, firstsx, restex);
if (ey - sy > 1) {
for (i = sy + 1; i < ey; i++) {
window_copy_copy_line(
wp, &buf, &off, i, restsx, restex);
}
}
window_copy_copy_line(wp, &buf, &off, ey, restsx, lastex);
}
/* Don't bother if no data. */
if (off == 0) {
xfree(buf);
return;
}
off--; /* remove final \n */
if (options_get_number(&global_options, "set-clipboard"))
screen_write_setselection(&wp->ictx.ctx, (u_char *)buf, off);
/* Add the buffer to the stack. */
limit = options_get_number(&global_options, "buffer-limit");
paste_add(&global_buffers, buf, off, limit);
}
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;
const struct grid_cell *gc;
const struct grid_utf8 *gu;
struct grid_line *gl;
u_int i, xx, wrapped = 0;
size_t size;
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++) {
gc = grid_peek_cell(gd, i, sy);
if (gc->flags & GRID_FLAG_PADDING)
continue;
if (!(gc->flags & GRID_FLAG_UTF8)) {
*buf = xrealloc(*buf, 1, (*off) + 1);
(*buf)[(*off)++] = gc->data;
} else {
gu = grid_peek_utf8(gd, i, sy);
size = grid_utf8_size(gu);
*buf = xrealloc(*buf, 1, (*off) + size);
*off += grid_utf8_copy(gu, *buf + *off, size);
}
}
}
/* Only add a newline if the line wasn't wrapped. */
if (!wrapped || ex != xx) {
*buf = xrealloc(*buf, 1, (*off) + 1);
(*buf)[(*off)++] = '\n';
}
}
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);
}
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;
const struct grid_cell *gc;
gc = grid_peek_cell(data->backing->grid, px, py);
if (gc->flags & (GRID_FLAG_PADDING|GRID_FLAG_UTF8))
return (0);
if (gc->data == 0x00 || gc->data == 0x7f)
return (0);
return (strchr(set, gc->data) != NULL);
}
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;
const 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) {
gc = grid_peek_cell(s->grid, px - 1, py);
if (gc->flags & GRID_FLAG_UTF8)
break;
if (gc->data != ' ')
break;
px--;
}
return (px);
}
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 grid *gd = back_s->grid;
u_int py;
if (data->cx == 0) {
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))
window_copy_redraw_lines(wp, data->cy, 1);
}
void
window_copy_cursor_back_to_indentation(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
u_int px, py, xx;
const 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) {
gc = grid_peek_cell(data->backing->grid, px, py);
if (gc->flags & GRID_FLAG_UTF8)
break;
if (gc->data != ' ')
break;
px++;
}
window_copy_update_cursor(wp, px, data->cy);
if (window_copy_update_selection(wp))
window_copy_redraw_lines(wp, data->cy, 1);
}
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 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) {
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))
window_copy_redraw_lines(wp, data->cy, 1);
}
void
window_copy_cursor_left(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
if (data->cx == 0) {
window_copy_cursor_up(wp, 0);
window_copy_cursor_end_of_line(wp);
} else {
window_copy_update_cursor(wp, data->cx - 1, data->cy);
if (window_copy_update_selection(wp))
window_copy_redraw_lines(wp, data->cy, 1);
}
}
void
window_copy_cursor_right(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
u_int px, py;
if (data->screen.sel.flag && data->rectflag)
px = screen_size_x(&data->screen);
else {
py = screen_hsize(data->backing) + data->cy - data->oy;
px = window_copy_find_length(wp, py);
}
if (data->cx >= px) {
window_copy_cursor_start_of_line(wp);
window_copy_cursor_down(wp, 0);
} else {
window_copy_update_cursor(wp, data->cx + 1, data->cy);
if (window_copy_update_selection(wp))
window_copy_redraw_lines(wp, data->cy, 1);
}
}
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 (ox != 0) {
data->lastcx = data->cx;
data->lastsx = ox;
}
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)) {
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);
}
}
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 (ox != 0) {
data->lastcx = data->cx;
data->lastsx = ox;
}
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))
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);
}
}
void
window_copy_cursor_jump(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *back_s = data->backing;
const 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) {
gc = grid_peek_cell(back_s->grid, px, py);
if ((gc->flags & (GRID_FLAG_PADDING|GRID_FLAG_UTF8)) == 0
&& gc->data == data->jumpchar) {
window_copy_update_cursor(wp, px, data->cy);
if (window_copy_update_selection(wp))
window_copy_redraw_lines(wp, data->cy, 1);
return;
}
px++;
}
}
void
window_copy_cursor_jump_back(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *back_s = data->backing;
const 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 (;;) {
gc = grid_peek_cell(back_s->grid, px, py);
if ((gc->flags & (GRID_FLAG_PADDING|GRID_FLAG_UTF8)) == 0
&& gc->data == data->jumpchar) {
window_copy_update_cursor(wp, px, data->cy);
if (window_copy_update_selection(wp))
window_copy_redraw_lines(wp, data->cy, 1);
return;
}
if (px == 0)
break;
px--;
}
}
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))
window_copy_redraw_lines(wp, data->cy, 1);
}
void
window_copy_cursor_next_word_end(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 = 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;
/*
* 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);
window_copy_update_cursor(wp, px, data->cy);
if (window_copy_update_selection(wp))
window_copy_redraw_lines(wp, data->cy, 1);
}
/* Move to the previous place where a word begins. */
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))
window_copy_redraw_lines(wp, data->cy, 1);
}
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;
screen_write_start(&ctx, wp, NULL);
screen_write_cursormove(&ctx, 0, 0);
screen_write_deleteline(&ctx, ny);
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_update_selection(wp);
window_copy_write_line(wp, &ctx, screen_size_y(s) - ny - 1);
}
screen_write_cursormove(&ctx, data->cx, data->cy);
window_copy_update_selection(wp);
screen_write_stop(&ctx);
}
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;
screen_write_start(&ctx, wp, NULL);
screen_write_cursormove(&ctx, 0, 0);
screen_write_insertline(&ctx, ny);
window_copy_write_lines(wp, &ctx, 0, ny);
if (s->sel.flag && screen_size_y(s) > ny) {
window_copy_update_selection(wp);
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);
window_copy_update_selection(wp);
screen_write_stop(&ctx);
}
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);
window_copy_redraw_screen(wp);
}
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