mirror of
https://github.com/tmate-io/tmate.git
synced 2024-12-22 14:51:28 +01:00
f41efd9d89
Add notify hooks for various events, the functions are currently empty stubs but will be filled in for control mode later. From George Nachman.
289 lines
6.4 KiB
C
289 lines
6.4 KiB
C
/* $Id$ */
|
|
|
|
/*
|
|
* Copyright (c) 2010 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 <ctype.h>
|
|
#include <string.h>
|
|
|
|
#include "tmux.h"
|
|
|
|
struct layout_cell *layout_find_bottomright(struct layout_cell *);
|
|
u_short layout_checksum(const char *);
|
|
int layout_append(struct layout_cell *, char *, size_t);
|
|
struct layout_cell *layout_construct(struct layout_cell *, const char **);
|
|
void layout_assign(struct window_pane **, struct layout_cell *);
|
|
|
|
/* Find the bottom-right cell. */
|
|
struct layout_cell *
|
|
layout_find_bottomright(struct layout_cell *lc)
|
|
{
|
|
if (lc->type == LAYOUT_WINDOWPANE)
|
|
return (lc);
|
|
lc = TAILQ_LAST(&lc->cells, layout_cells);
|
|
return (layout_find_bottomright(lc));
|
|
}
|
|
|
|
/* Calculate layout checksum. */
|
|
u_short
|
|
layout_checksum(const char *layout)
|
|
{
|
|
u_short csum;
|
|
|
|
csum = 0;
|
|
for (; *layout != '\0'; layout++) {
|
|
csum = (csum >> 1) + ((csum & 1) << 15);
|
|
csum += *layout;
|
|
}
|
|
return (csum);
|
|
}
|
|
|
|
/* Dump layout as a string. */
|
|
char *
|
|
layout_dump(struct window *w)
|
|
{
|
|
char layout[BUFSIZ], *out;
|
|
|
|
*layout = '\0';
|
|
if (layout_append(w->layout_root, layout, sizeof layout) != 0)
|
|
return (NULL);
|
|
|
|
xasprintf(&out, "%4x,%s", layout_checksum(layout), layout);
|
|
return (out);
|
|
}
|
|
|
|
/* Append information for a single cell. */
|
|
int
|
|
layout_append(struct layout_cell *lc, char *buf, size_t len)
|
|
{
|
|
struct layout_cell *lcchild;
|
|
char tmp[64];
|
|
size_t tmplen;
|
|
const char *brackets = "][";
|
|
|
|
if (len == 0)
|
|
return (-1);
|
|
|
|
if (lc->wp != NULL) {
|
|
tmplen = xsnprintf(tmp, sizeof tmp, "%ux%u,%u,%u,%u",
|
|
lc->sx, lc->sy, lc->xoff, lc->yoff, lc->wp->id);
|
|
} else {
|
|
tmplen = xsnprintf(tmp, sizeof tmp, "%ux%u,%u,%u",
|
|
lc->sx, lc->sy, lc->xoff, lc->yoff);
|
|
}
|
|
if (tmplen > (sizeof tmp) - 1)
|
|
return (-1);
|
|
if (strlcat(buf, tmp, len) >= len)
|
|
return (-1);
|
|
|
|
switch (lc->type) {
|
|
case LAYOUT_LEFTRIGHT:
|
|
brackets = "}{";
|
|
/* FALLTHROUGH */
|
|
case LAYOUT_TOPBOTTOM:
|
|
if (strlcat(buf, &brackets[1], len) >= len)
|
|
return (-1);
|
|
TAILQ_FOREACH(lcchild, &lc->cells, entry) {
|
|
if (layout_append(lcchild, buf, len) != 0)
|
|
return (-1);
|
|
if (strlcat(buf, ",", len) >= len)
|
|
return (-1);
|
|
}
|
|
buf[strlen(buf) - 1] = brackets[0];
|
|
break;
|
|
case LAYOUT_WINDOWPANE:
|
|
break;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* Parse a layout string and arrange window as layout. */
|
|
int
|
|
layout_parse(struct window *w, const char *layout)
|
|
{
|
|
struct layout_cell *lc, *lcchild;
|
|
struct window_pane *wp;
|
|
u_int npanes, ncells, sx, sy;
|
|
u_short csum;
|
|
|
|
/* Check validity. */
|
|
if (sscanf(layout, "%hx,", &csum) != 1)
|
|
return (-1);
|
|
layout += 5;
|
|
if (csum != layout_checksum(layout))
|
|
return (-1);
|
|
|
|
/* Build the layout. */
|
|
lc = layout_construct(NULL, &layout);
|
|
if (lc == NULL)
|
|
return (-1);
|
|
if (*layout != '\0')
|
|
goto fail;
|
|
|
|
/* Check this window will fit into the layout. */
|
|
for (;;) {
|
|
npanes = window_count_panes(w);
|
|
ncells = layout_count_cells(lc);
|
|
if (npanes > ncells)
|
|
goto fail;
|
|
if (npanes == ncells)
|
|
break;
|
|
|
|
/* Fewer panes than cells - close the bottom right. */
|
|
lcchild = layout_find_bottomright(lc);
|
|
layout_destroy_cell(lcchild, &lc);
|
|
}
|
|
|
|
/* Save the old window size and resize to the layout size. */
|
|
sx = w->sx; sy = w->sy;
|
|
window_resize(w, lc->sx, lc->sy);
|
|
|
|
/* Destroy the old layout and swap to the new. */
|
|
layout_free_cell(w->layout_root);
|
|
w->layout_root = lc;
|
|
|
|
/* Assign the panes into the cells. */
|
|
wp = TAILQ_FIRST(&w->panes);
|
|
layout_assign(&wp, lc);
|
|
|
|
/* Update pane offsets and sizes. */
|
|
layout_fix_offsets(lc);
|
|
layout_fix_panes(w, lc->sx, lc->sy);
|
|
|
|
/* Then resize the layout back to the original window size. */
|
|
layout_resize(w, sx, sy);
|
|
window_resize(w, sx, sy);
|
|
|
|
layout_print_cell(lc, __func__, 0);
|
|
|
|
notify_window_layout_changed(w);
|
|
|
|
return (0);
|
|
|
|
fail:
|
|
layout_free_cell(lc);
|
|
return (-1);
|
|
}
|
|
|
|
/* Assign panes into cells. */
|
|
void
|
|
layout_assign(struct window_pane **wp, struct layout_cell *lc)
|
|
{
|
|
struct layout_cell *lcchild;
|
|
|
|
switch (lc->type) {
|
|
case LAYOUT_WINDOWPANE:
|
|
layout_make_leaf(lc, *wp);
|
|
*wp = TAILQ_NEXT(*wp, entry);
|
|
return;
|
|
case LAYOUT_LEFTRIGHT:
|
|
case LAYOUT_TOPBOTTOM:
|
|
TAILQ_FOREACH(lcchild, &lc->cells, entry)
|
|
layout_assign(wp, lcchild);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* Construct a cell from all or part of a layout tree. */
|
|
struct layout_cell *
|
|
layout_construct(struct layout_cell *lcparent, const char **layout)
|
|
{
|
|
struct layout_cell *lc, *lcchild;
|
|
u_int sx, sy, xoff, yoff;
|
|
|
|
if (!isdigit((u_char) **layout))
|
|
return (NULL);
|
|
if (sscanf(*layout, "%ux%u,%u,%u,%*u", &sx, &sy, &xoff, &yoff) != 4 &&
|
|
sscanf(*layout, "%ux%u,%u,%u", &sx, &sy, &xoff, &yoff) != 4)
|
|
return (NULL);
|
|
|
|
while (isdigit((u_char) **layout))
|
|
(*layout)++;
|
|
if (**layout != 'x')
|
|
return (NULL);
|
|
(*layout)++;
|
|
while (isdigit((u_char) **layout))
|
|
(*layout)++;
|
|
if (**layout != ',')
|
|
return (NULL);
|
|
(*layout)++;
|
|
while (isdigit((u_char) **layout))
|
|
(*layout)++;
|
|
if (**layout != ',')
|
|
return (NULL);
|
|
(*layout)++;
|
|
while (isdigit((u_char) **layout))
|
|
(*layout)++;
|
|
if (**layout == ',') {
|
|
(*layout)++;
|
|
while (isdigit((u_char) **layout))
|
|
(*layout)++;
|
|
}
|
|
|
|
lc = layout_create_cell(lcparent);
|
|
lc->sx = sx;
|
|
lc->sy = sy;
|
|
lc->xoff = xoff;
|
|
lc->yoff = yoff;
|
|
|
|
switch (**layout) {
|
|
case ',':
|
|
case '}':
|
|
case ']':
|
|
case '\0':
|
|
return (lc);
|
|
case '{':
|
|
lc->type = LAYOUT_LEFTRIGHT;
|
|
break;
|
|
case '[':
|
|
lc->type = LAYOUT_TOPBOTTOM;
|
|
break;
|
|
default:
|
|
goto fail;
|
|
}
|
|
|
|
do {
|
|
(*layout)++;
|
|
lcchild = layout_construct(lc, layout);
|
|
if (lcchild == NULL)
|
|
goto fail;
|
|
TAILQ_INSERT_TAIL(&lc->cells, lcchild, entry);
|
|
} while (**layout == ',');
|
|
|
|
switch (lc->type) {
|
|
case LAYOUT_LEFTRIGHT:
|
|
if (**layout != '}')
|
|
goto fail;
|
|
break;
|
|
case LAYOUT_TOPBOTTOM:
|
|
if (**layout != ']')
|
|
goto fail;
|
|
break;
|
|
default:
|
|
goto fail;
|
|
}
|
|
(*layout)++;
|
|
|
|
return (lc);
|
|
|
|
fail:
|
|
layout_free_cell(lc);
|
|
return (NULL);
|
|
}
|