tmux/window.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 <sys/ioctl.h>
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#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <fnmatch.h>
#include <regex.h>
#include <signal.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <util.h>
#include <vis.h>
#include "tmux.h"
/*
* Each window is attached to a number of panes, each of which is a pty. This
* file contains code to handle them.
*
* A pane has two buffers attached, these are filled and emptied by the main
* server poll loop. Output data is received from pty's in screen format,
* translated and returned as a series of escape sequences and strings via
* input_parse (in input.c). Input data is received as key codes and written
* directly via input_key.
*
* Each pane also has a "virtual" screen (screen.c) which contains the current
* state and is redisplayed when the window is reattached to a client.
*
* Windows are stored directly on a global array and wrapped in any number of
* winlink structs to be linked onto local session RB trees. A reference count
* is maintained and a window removed from the global list and destroyed when
* it reaches zero.
*/
/* Global window list. */
struct windows windows;
/* Global panes tree. */
struct window_pane_tree all_window_panes;
static u_int next_window_pane_id;
static u_int next_window_id;
static u_int next_active_point;
struct window_pane_input_data {
struct cmdq_item *item;
u_int wp;
};
static struct window_pane *window_pane_create(struct window *, u_int, u_int,
u_int);
static void window_pane_destroy(struct window_pane *);
RB_GENERATE(windows, window, entry, window_cmp);
RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
int
window_cmp(struct window *w1, struct window *w2)
{
return (w1->id - w2->id);
}
int
winlink_cmp(struct winlink *wl1, struct winlink *wl2)
{
return (wl1->idx - wl2->idx);
}
int
window_pane_cmp(struct window_pane *wp1, struct window_pane *wp2)
{
return (wp1->id - wp2->id);
}
struct winlink *
winlink_find_by_window(struct winlinks *wwl, struct window *w)
{
struct winlink *wl;
RB_FOREACH(wl, winlinks, wwl) {
if (wl->window == w)
return (wl);
}
return (NULL);
}
struct winlink *
winlink_find_by_index(struct winlinks *wwl, int idx)
{
struct winlink wl;
if (idx < 0)
fatalx("bad index");
wl.idx = idx;
return (RB_FIND(winlinks, wwl, &wl));
}
struct winlink *
winlink_find_by_window_id(struct winlinks *wwl, u_int id)
{
struct winlink *wl;
RB_FOREACH(wl, winlinks, wwl) {
if (wl->window->id == id)
return (wl);
}
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return (NULL);
}
static int
winlink_next_index(struct winlinks *wwl, int idx)
{
int i;
i = idx;
do {
if (winlink_find_by_index(wwl, i) == NULL)
return (i);
if (i == INT_MAX)
i = 0;
else
i++;
} while (i != idx);
return (-1);
}
u_int
winlink_count(struct winlinks *wwl)
{
struct winlink *wl;
u_int n;
n = 0;
RB_FOREACH(wl, winlinks, wwl)
n++;
return (n);
}
struct winlink *
winlink_add(struct winlinks *wwl, int idx)
{
struct winlink *wl;
if (idx < 0) {
if ((idx = winlink_next_index(wwl, -idx - 1)) == -1)
return (NULL);
} else if (winlink_find_by_index(wwl, idx) != NULL)
return (NULL);
wl = xcalloc(1, sizeof *wl);
wl->idx = idx;
RB_INSERT(winlinks, wwl, wl);
return (wl);
}
void
winlink_set_window(struct winlink *wl, struct window *w)
{
if (wl->window != NULL) {
TAILQ_REMOVE(&wl->window->winlinks, wl, wentry);
window_remove_ref(wl->window, __func__);
}
TAILQ_INSERT_TAIL(&w->winlinks, wl, wentry);
wl->window = w;
window_add_ref(w, __func__);
}
void
winlink_remove(struct winlinks *wwl, struct winlink *wl)
{
struct window *w = wl->window;
if (w != NULL) {
TAILQ_REMOVE(&w->winlinks, wl, wentry);
window_remove_ref(w, __func__);
}
RB_REMOVE(winlinks, wwl, wl);
free(wl);
}
struct winlink *
winlink_next(struct winlink *wl)
{
return (RB_NEXT(winlinks, wwl, wl));
}
struct winlink *
winlink_previous(struct winlink *wl)
{
return (RB_PREV(winlinks, wwl, wl));
}
struct winlink *
winlink_next_by_number(struct winlink *wl, struct session *s, int n)
{
for (; n > 0; n--) {
if ((wl = RB_NEXT(winlinks, wwl, wl)) == NULL)
wl = RB_MIN(winlinks, &s->windows);
}
return (wl);
}
struct winlink *
winlink_previous_by_number(struct winlink *wl, struct session *s, int n)
{
for (; n > 0; n--) {
if ((wl = RB_PREV(winlinks, wwl, wl)) == NULL)
wl = RB_MAX(winlinks, &s->windows);
}
return (wl);
}
void
winlink_stack_push(struct winlink_stack *stack, struct winlink *wl)
{
if (wl == NULL)
return;
winlink_stack_remove(stack, wl);
TAILQ_INSERT_HEAD(stack, wl, sentry);
}
void
winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
{
struct winlink *wl2;
if (wl == NULL)
return;
TAILQ_FOREACH(wl2, stack, sentry) {
if (wl2 == wl) {
TAILQ_REMOVE(stack, wl, sentry);
return;
}
}
}
struct window *
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window_find_by_id_str(const char *s)
{
const char *errstr;
u_int id;
if (*s != '@')
return (NULL);
id = strtonum(s + 1, 0, UINT_MAX, &errstr);
if (errstr != NULL)
return (NULL);
return (window_find_by_id(id));
}
struct window *
window_find_by_id(u_int id)
{
struct window w;
w.id = id;
return (RB_FIND(windows, &windows, &w));
}
void
window_update_activity(struct window *w)
{
gettimeofday(&w->activity_time, NULL);
alerts_queue(w, WINDOW_ACTIVITY);
}
struct window *
window_create(u_int sx, u_int sy, u_int xpixel, u_int ypixel)
{
struct window *w;
if (xpixel == 0)
xpixel = DEFAULT_XPIXEL;
if (ypixel == 0)
ypixel = DEFAULT_YPIXEL;
w = xcalloc(1, sizeof *w);
w->name = xstrdup("");
w->flags = 0;
TAILQ_INIT(&w->panes);
w->active = NULL;
w->lastlayout = -1;
w->layout_root = NULL;
w->sx = sx;
w->sy = sy;
w->xpixel = xpixel;
w->ypixel = ypixel;
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w->options = options_create(global_w_options);
w->references = 0;
TAILQ_INIT(&w->winlinks);
w->id = next_window_id++;
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RB_INSERT(windows, &windows, w);
window_update_activity(w);
log_debug("%s: @%u create %ux%u (%ux%u)", __func__, w->id, sx, sy,
w->xpixel, w->ypixel);
return (w);
}
static void
window_destroy(struct window *w)
{
log_debug("window @%u destroyed (%d references)", w->id, w->references);
RB_REMOVE(windows, &windows, w);
if (w->layout_root != NULL)
layout_free_cell(w->layout_root);
if (w->saved_layout_root != NULL)
layout_free_cell(w->saved_layout_root);
free(w->old_layout);
window_destroy_panes(w);
if (event_initialized(&w->name_event))
evtimer_del(&w->name_event);
if (event_initialized(&w->alerts_timer))
evtimer_del(&w->alerts_timer);
Support for windows larger than visible on the attached client. This has been a limitation for a long time. There are two new options, window-size and default-size, and a new command, resize-window. The force-width and force-height options and the session_width and session_height formats have been removed. The new window-size option tells tmux how to work out the size of windows: largest means it picks the size of the largest session, smallest the smallest session (similar to the old behaviour) and manual means that it does not automatically resize windows. The default is currently largest but this may change. aggressive-resize modifies the choice of session for largest and smallest as it did before. If a window is in a session attached to a client that is too small, only part of the window is shown. tmux attempts to keep the cursor visible, so the part of the window displayed is changed as the cursor moves (with a small delay, to try and avoid excess redrawing when applications redraw status lines or similar that are not currently visible). The offset of the visible portion of the window is shown in status-right. Drawing windows which are larger than the client is not as efficient as those which fit, particularly when the cursor moves, so it is recommended to avoid using this on slow machines or networks (set window-size to smallest or manual). The resize-window command can be used to resize a window manually. If it is used, the window-size option is automatically set to manual for the window (undo this with "setw -u window-size"). resize-window works in a similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a sets the window to the size of the smallest client (what it would be if window-size was smallest) and -A the largest. For the same behaviour as force-width or force-height, use resize-window -x or -y, and "setw -u window-size" to revert to automatic sizing.. If the global window-size option is set to manual, the default-size option is used for new windows. If -x or -y is used with new-session, that sets the default-size option for the new session. The maximum size of a window is 10000x10000. But expect applications to complain and much higher memory use if making a window excessively big. The minimum size is the size required for the current layout including borders. The refresh-client command can be used to pan around a window, -U -D -L -R moves up, down, left or right and -c returns to automatic cursor tracking. The position is reset when the current window is changed.
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if (event_initialized(&w->offset_timer))
event_del(&w->offset_timer);
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options_free(w->options);
free(w->name);
free(w);
}
int
window_pane_destroy_ready(struct window_pane *wp)
{
int n;
if (wp->pipe_fd != -1) {
if (EVBUFFER_LENGTH(wp->pipe_event->output) != 0)
return (0);
if (ioctl(wp->fd, FIONREAD, &n) != -1 && n > 0)
return (0);
}
if (~wp->flags & PANE_EXITED)
return (0);
return (1);
}
void
window_add_ref(struct window *w, const char *from)
{
w->references++;
log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references);
}
void
window_remove_ref(struct window *w, const char *from)
{
w->references--;
log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references);
if (w->references == 0)
window_destroy(w);
}
void
window_set_name(struct window *w, const char *new_name)
{
free(w->name);
utf8_stravis(&w->name, new_name, VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL);
notify_window("window-renamed", w);
}
void
window_resize(struct window *w, u_int sx, u_int sy, int xpixel, int ypixel)
{
if (xpixel == 0)
xpixel = DEFAULT_XPIXEL;
if (ypixel == 0)
ypixel = DEFAULT_YPIXEL;
log_debug("%s: @%u resize %ux%u (%ux%u)", __func__, w->id, sx, sy,
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xpixel == -1 ? w->xpixel : (u_int)xpixel,
ypixel == -1 ? w->ypixel : (u_int)ypixel);
w->sx = sx;
w->sy = sy;
if (xpixel != -1)
w->xpixel = xpixel;
if (ypixel != -1)
w->ypixel = ypixel;
}
void
window_pane_send_resize(struct window_pane *wp, u_int sx, u_int sy)
{
struct window *w = wp->window;
struct winsize ws;
if (wp->fd == -1)
return;
log_debug("%s: %%%u resize to %u,%u", __func__, wp->id, sx, sy);
memset(&ws, 0, sizeof ws);
ws.ws_col = sx;
ws.ws_row = sy;
ws.ws_xpixel = w->xpixel * ws.ws_col;
ws.ws_ypixel = w->ypixel * ws.ws_row;
if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
fatal("ioctl failed");
}
int
window_has_pane(struct window *w, struct window_pane *wp)
{
struct window_pane *wp1;
TAILQ_FOREACH(wp1, &w->panes, entry) {
if (wp1 == wp)
return (1);
}
return (0);
}
int
window_set_active_pane(struct window *w, struct window_pane *wp, int notify)
{
log_debug("%s: pane %%%u", __func__, wp->id);
if (wp == w->active)
return (0);
w->last = w->active;
w->active = wp;
w->active->active_point = next_active_point++;
w->active->flags |= PANE_CHANGED;
Support for windows larger than visible on the attached client. This has been a limitation for a long time. There are two new options, window-size and default-size, and a new command, resize-window. The force-width and force-height options and the session_width and session_height formats have been removed. The new window-size option tells tmux how to work out the size of windows: largest means it picks the size of the largest session, smallest the smallest session (similar to the old behaviour) and manual means that it does not automatically resize windows. The default is currently largest but this may change. aggressive-resize modifies the choice of session for largest and smallest as it did before. If a window is in a session attached to a client that is too small, only part of the window is shown. tmux attempts to keep the cursor visible, so the part of the window displayed is changed as the cursor moves (with a small delay, to try and avoid excess redrawing when applications redraw status lines or similar that are not currently visible). The offset of the visible portion of the window is shown in status-right. Drawing windows which are larger than the client is not as efficient as those which fit, particularly when the cursor moves, so it is recommended to avoid using this on slow machines or networks (set window-size to smallest or manual). The resize-window command can be used to resize a window manually. If it is used, the window-size option is automatically set to manual for the window (undo this with "setw -u window-size"). resize-window works in a similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a sets the window to the size of the smallest client (what it would be if window-size was smallest) and -A the largest. For the same behaviour as force-width or force-height, use resize-window -x or -y, and "setw -u window-size" to revert to automatic sizing.. If the global window-size option is set to manual, the default-size option is used for new windows. If -x or -y is used with new-session, that sets the default-size option for the new session. The maximum size of a window is 10000x10000. But expect applications to complain and much higher memory use if making a window excessively big. The minimum size is the size required for the current layout including borders. The refresh-client command can be used to pan around a window, -U -D -L -R moves up, down, left or right and -c returns to automatic cursor tracking. The position is reset when the current window is changed.
2018-10-18 08:38:01 +00:00
tty_update_window_offset(w);
if (notify)
notify_window("window-pane-changed", w);
return (1);
}
void
window_redraw_active_switch(struct window *w, struct window_pane *wp)
{
struct grid_cell *gc1, *gc2;
int c1, c2;
if (wp == w->active)
return;
for (;;) {
/*
* If the active and inactive styles or palettes are different,
* need to redraw the panes.
*/
gc1 = &wp->cached_gc;
gc2 = &wp->cached_active_gc;
if (!grid_cells_look_equal(gc1, gc2))
wp->flags |= PANE_REDRAW;
else {
c1 = window_pane_get_palette(wp, gc1->fg);
c2 = window_pane_get_palette(wp, gc2->fg);
if (c1 != c2)
wp->flags |= PANE_REDRAW;
else {
c1 = window_pane_get_palette(wp, gc1->bg);
c2 = window_pane_get_palette(wp, gc2->bg);
if (c1 != c2)
wp->flags |= PANE_REDRAW;
}
}
if (wp == w->active)
break;
wp = w->active;
}
}
struct window_pane *
window_get_active_at(struct window *w, u_int x, u_int y)
{
struct window_pane *wp;
TAILQ_FOREACH(wp, &w->panes, entry) {
if (!window_pane_visible(wp))
continue;
if (x < wp->xoff || x > wp->xoff + wp->sx)
continue;
if (y < wp->yoff || y > wp->yoff + wp->sy)
continue;
return (wp);
}
return (NULL);
}
struct window_pane *
window_find_string(struct window *w, const char *s)
{
u_int x, y, top = 0, bottom = w->sy - 1;
int status;
x = w->sx / 2;
y = w->sy / 2;
status = options_get_number(w->options, "pane-border-status");
if (status == PANE_STATUS_TOP)
top++;
else if (status == PANE_STATUS_BOTTOM)
bottom--;
if (strcasecmp(s, "top") == 0)
y = top;
else if (strcasecmp(s, "bottom") == 0)
y = bottom;
else if (strcasecmp(s, "left") == 0)
x = 0;
else if (strcasecmp(s, "right") == 0)
x = w->sx - 1;
else if (strcasecmp(s, "top-left") == 0) {
x = 0;
y = top;
} else if (strcasecmp(s, "top-right") == 0) {
x = w->sx - 1;
y = top;
} else if (strcasecmp(s, "bottom-left") == 0) {
x = 0;
y = bottom;
} else if (strcasecmp(s, "bottom-right") == 0) {
x = w->sx - 1;
y = bottom;
} else
return (NULL);
return (window_get_active_at(w, x, y));
}
int
window_zoom(struct window_pane *wp)
{
struct window *w = wp->window;
struct window_pane *wp1;
if (w->flags & WINDOW_ZOOMED)
return (-1);
if (window_count_panes(w) == 1)
return (-1);
if (w->active != wp)
window_set_active_pane(w, wp, 1);
TAILQ_FOREACH(wp1, &w->panes, entry) {
wp1->saved_layout_cell = wp1->layout_cell;
wp1->layout_cell = NULL;
}
w->saved_layout_root = w->layout_root;
layout_init(w, wp);
w->flags |= WINDOW_ZOOMED;
notify_window("window-layout-changed", w);
return (0);
}
int
window_unzoom(struct window *w)
{
struct window_pane *wp;
if (!(w->flags & WINDOW_ZOOMED))
return (-1);
w->flags &= ~WINDOW_ZOOMED;
layout_free(w);
w->layout_root = w->saved_layout_root;
w->saved_layout_root = NULL;
TAILQ_FOREACH(wp, &w->panes, entry) {
wp->layout_cell = wp->saved_layout_cell;
wp->saved_layout_cell = NULL;
}
layout_fix_panes(w, NULL);
notify_window("window-layout-changed", w);
return (0);
}
int
window_push_zoom(struct window *w, int always, int flag)
{
log_debug("%s: @%u %d", __func__, w->id,
flag && (w->flags & WINDOW_ZOOMED));
if (flag && (always || (w->flags & WINDOW_ZOOMED)))
w->flags |= WINDOW_WASZOOMED;
else
w->flags &= ~WINDOW_WASZOOMED;
return (window_unzoom(w) == 0);
}
int
window_pop_zoom(struct window *w)
{
log_debug("%s: @%u %d", __func__, w->id,
!!(w->flags & WINDOW_WASZOOMED));
if (w->flags & WINDOW_WASZOOMED)
return (window_zoom(w->active) == 0);
return (0);
}
struct window_pane *
window_add_pane(struct window *w, struct window_pane *other, u_int hlimit,
int flags)
{
struct window_pane *wp;
if (other == NULL)
other = w->active;
wp = window_pane_create(w, w->sx, w->sy, hlimit);
2017-03-13 17:20:11 +00:00
if (TAILQ_EMPTY(&w->panes)) {
log_debug("%s: @%u at start", __func__, w->id);
TAILQ_INSERT_HEAD(&w->panes, wp, entry);
} else if (flags & SPAWN_BEFORE) {
2017-03-13 17:20:11 +00:00
log_debug("%s: @%u before %%%u", __func__, w->id, wp->id);
if (flags & SPAWN_FULLSIZE)
TAILQ_INSERT_HEAD(&w->panes, wp, entry);
else
TAILQ_INSERT_BEFORE(other, wp, entry);
2017-03-13 17:20:11 +00:00
} else {
log_debug("%s: @%u after %%%u", __func__, w->id, wp->id);
if (flags & SPAWN_FULLSIZE)
TAILQ_INSERT_TAIL(&w->panes, wp, entry);
else
TAILQ_INSERT_AFTER(&w->panes, other, wp, entry);
2017-03-13 17:20:11 +00:00
}
return (wp);
}
void
window_lost_pane(struct window *w, struct window_pane *wp)
{
log_debug("%s: @%u pane %%%u", __func__, w->id, wp->id);
2015-12-15 00:00:01 +00:00
if (wp == marked_pane.wp)
server_clear_marked();
if (wp == w->active) {
w->active = w->last;
w->last = NULL;
if (w->active == NULL) {
w->active = TAILQ_PREV(wp, window_panes, entry);
if (w->active == NULL)
w->active = TAILQ_NEXT(wp, entry);
}
if (w->active != NULL) {
w->active->flags |= PANE_CHANGED;
notify_window("window-pane-changed", w);
}
} else if (wp == w->last)
w->last = NULL;
}
void
window_remove_pane(struct window *w, struct window_pane *wp)
{
window_lost_pane(w, wp);
TAILQ_REMOVE(&w->panes, wp, entry);
window_pane_destroy(wp);
}
struct window_pane *
window_pane_at_index(struct window *w, u_int idx)
{
struct window_pane *wp;
u_int n;
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n = options_get_number(w->options, "pane-base-index");
TAILQ_FOREACH(wp, &w->panes, entry) {
if (n == idx)
return (wp);
n++;
}
return (NULL);
}
struct window_pane *
window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n)
{
for (; n > 0; n--) {
if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
wp = TAILQ_FIRST(&w->panes);
}
return (wp);
}
struct window_pane *
window_pane_previous_by_number(struct window *w, struct window_pane *wp,
u_int n)
{
for (; n > 0; n--) {
if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL)
wp = TAILQ_LAST(&w->panes, window_panes);
}
return (wp);
}
int
window_pane_index(struct window_pane *wp, u_int *i)
{
struct window_pane *wq;
struct window *w = wp->window;
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*i = options_get_number(w->options, "pane-base-index");
TAILQ_FOREACH(wq, &w->panes, entry) {
if (wp == wq) {
return (0);
}
(*i)++;
}
return (-1);
}
u_int
window_count_panes(struct window *w)
{
struct window_pane *wp;
u_int n;
n = 0;
TAILQ_FOREACH(wp, &w->panes, entry)
n++;
return (n);
}
void
window_destroy_panes(struct window *w)
{
struct window_pane *wp;
while (!TAILQ_EMPTY(&w->panes)) {
wp = TAILQ_FIRST(&w->panes);
TAILQ_REMOVE(&w->panes, wp, entry);
window_pane_destroy(wp);
}
}
const char *
window_printable_flags(struct winlink *wl, int escape)
{
struct session *s = wl->session;
static char flags[32];
int pos;
pos = 0;
if (wl->flags & WINLINK_ACTIVITY) {
flags[pos++] = '#';
if (escape)
flags[pos++] = '#';
}
if (wl->flags & WINLINK_BELL)
flags[pos++] = '!';
if (wl->flags & WINLINK_SILENCE)
flags[pos++] = '~';
if (wl == s->curw)
flags[pos++] = '*';
if (wl == TAILQ_FIRST(&s->lastw))
flags[pos++] = '-';
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if (server_check_marked() && wl == marked_pane.wl)
flags[pos++] = 'M';
if (wl->window->flags & WINDOW_ZOOMED)
flags[pos++] = 'Z';
flags[pos] = '\0';
return (flags);
}
struct window_pane *
window_pane_find_by_id_str(const char *s)
{
const char *errstr;
u_int id;
if (*s != '%')
return (NULL);
id = strtonum(s + 1, 0, UINT_MAX, &errstr);
if (errstr != NULL)
return (NULL);
return (window_pane_find_by_id(id));
}
struct window_pane *
window_pane_find_by_id(u_int id)
{
struct window_pane wp;
wp.id = id;
return (RB_FIND(window_pane_tree, &all_window_panes, &wp));
}
static struct window_pane *
window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
{
struct window_pane *wp;
char host[HOST_NAME_MAX + 1];
wp = xcalloc(1, sizeof *wp);
wp->window = w;
wp->options = options_create(w->options);
wp->flags = PANE_STYLECHANGED;
wp->id = next_window_pane_id++;
RB_INSERT(window_pane_tree, &all_window_panes, wp);
wp->fd = -1;
wp->fg = 8;
wp->bg = 8;
TAILQ_INIT(&wp->modes);
TAILQ_INIT (&wp->resize_queue);
wp->sx = sx;
wp->sy = sy;
wp->pipe_fd = -1;
screen_init(&wp->base, sx, sy, hlimit);
wp->screen = &wp->base;
screen_init(&wp->status_screen, 1, 1, 0);
if (gethostname(host, sizeof host) == 0)
screen_set_title(&wp->base, host);
return (wp);
}
static void
window_pane_destroy(struct window_pane *wp)
{
struct window_pane_resize *r;
struct window_pane_resize *r1;
window_pane_reset_mode_all(wp);
free(wp->searchstr);
if (wp->fd != -1) {
bufferevent_free(wp->event);
close(wp->fd);
}
if (wp->ictx != NULL)
input_free(wp->ictx);
screen_free(&wp->status_screen);
screen_free(&wp->base);
if (wp->pipe_fd != -1) {
bufferevent_free(wp->pipe_event);
close(wp->pipe_fd);
}
if (event_initialized(&wp->resize_timer))
event_del(&wp->resize_timer);
TAILQ_FOREACH_SAFE(r, &wp->resize_queue, entry, r1) {
TAILQ_REMOVE(&wp->resize_queue, r, entry);
free(r);
}
RB_REMOVE(window_pane_tree, &all_window_panes, wp);
options_free(wp->options);
free((void *)wp->cwd);
free(wp->shell);
cmd_free_argv(wp->argc, wp->argv);
free(wp->palette);
free(wp);
}
static void
window_pane_read_callback(__unused struct bufferevent *bufev, void *data)
{
struct window_pane *wp = data;
struct evbuffer *evb = wp->event->input;
struct window_pane_offset *wpo = &wp->pipe_offset;
size_t size = EVBUFFER_LENGTH(evb);
char *new_data;
size_t new_size;
struct client *c;
if (wp->pipe_fd != -1) {
new_data = window_pane_get_new_data(wp, wpo, &new_size);
if (new_size > 0) {
bufferevent_write(wp->pipe_event, new_data, new_size);
window_pane_update_used_data(wp, wpo, new_size);
}
}
log_debug("%%%u has %zu bytes", wp->id, size);
TAILQ_FOREACH(c, &clients, entry) {
if (c->session != NULL && (c->flags & CLIENT_CONTROL))
control_write_output(c, wp);
}
input_parse_pane(wp);
bufferevent_disable(wp->event, EV_READ);
}
static void
window_pane_error_callback(__unused struct bufferevent *bufev,
__unused short what, void *data)
{
struct window_pane *wp = data;
log_debug("%%%u error", wp->id);
wp->flags |= PANE_EXITED;
if (window_pane_destroy_ready(wp))
server_destroy_pane(wp, 1);
}
void
window_pane_set_event(struct window_pane *wp)
{
setblocking(wp->fd, 0);
wp->event = bufferevent_new(wp->fd, window_pane_read_callback,
NULL, window_pane_error_callback, wp);
wp->ictx = input_init(wp, wp->event);
bufferevent_enable(wp->event, EV_READ|EV_WRITE);
}
void
window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
{
struct window_mode_entry *wme;
struct window_pane_resize *r;
if (sx == wp->sx && sy == wp->sy)
return;
r = xmalloc (sizeof *r);
r->sx = sx;
r->sy = sy;
r->osx = wp->sx;
r->osy = wp->sy;
TAILQ_INSERT_TAIL (&wp->resize_queue, r, entry);
wp->sx = sx;
wp->sy = sy;
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log_debug("%s: %%%u resize %ux%u", __func__, wp->id, sx, sy);
screen_resize(&wp->base, sx, sy, wp->base.saved_grid == NULL);
wme = TAILQ_FIRST(&wp->modes);
if (wme != NULL && wme->mode->resize != NULL)
wme->mode->resize(wme, sx, sy);
}
void
window_pane_set_palette(struct window_pane *wp, u_int n, int colour)
{
if (n > 0xff)
return;
if (wp->palette == NULL)
wp->palette = xcalloc(0x100, sizeof *wp->palette);
wp->palette[n] = colour;
wp->flags |= PANE_REDRAW;
}
void
window_pane_unset_palette(struct window_pane *wp, u_int n)
{
if (n > 0xff || wp->palette == NULL)
return;
wp->palette[n] = 0;
wp->flags |= PANE_REDRAW;
}
void
window_pane_reset_palette(struct window_pane *wp)
{
if (wp->palette == NULL)
return;
free(wp->palette);
wp->palette = NULL;
wp->flags |= PANE_REDRAW;
}
int
window_pane_get_palette(struct window_pane *wp, int c)
{
int new;
if (wp == NULL || wp->palette == NULL)
return (-1);
new = -1;
if (c < 8)
new = wp->palette[c];
else if (c >= 90 && c <= 97)
new = wp->palette[8 + c - 90];
else if (c & COLOUR_FLAG_256)
new = wp->palette[c & ~COLOUR_FLAG_256];
if (new == 0)
return (-1);
return (new);
}
int
window_pane_set_mode(struct window_pane *wp, struct window_pane *swp,
const struct window_mode *mode, struct cmd_find_state *fs,
struct args *args)
{
struct window_mode_entry *wme;
if (!TAILQ_EMPTY(&wp->modes) && TAILQ_FIRST(&wp->modes)->mode == mode)
return (1);
TAILQ_FOREACH(wme, &wp->modes, entry) {
if (wme->mode == mode)
break;
}
if (wme != NULL) {
TAILQ_REMOVE(&wp->modes, wme, entry);
TAILQ_INSERT_HEAD(&wp->modes, wme, entry);
} else {
wme = xcalloc(1, sizeof *wme);
wme->wp = wp;
wme->swp = swp;
wme->mode = mode;
wme->prefix = 1;
TAILQ_INSERT_HEAD(&wp->modes, wme, entry);
wme->screen = wme->mode->init(wme, fs, args);
}
wp->screen = wme->screen;
wp->flags |= (PANE_REDRAW|PANE_CHANGED);
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server_redraw_window_borders(wp->window);
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server_status_window(wp->window);
notify_pane("pane-mode-changed", wp);
return (0);
}
void
window_pane_reset_mode(struct window_pane *wp)
{
struct window_mode_entry *wme, *next;
if (TAILQ_EMPTY(&wp->modes))
return;
wme = TAILQ_FIRST(&wp->modes);
TAILQ_REMOVE(&wp->modes, wme, entry);
wme->mode->free(wme);
free(wme);
next = TAILQ_FIRST(&wp->modes);
if (next == NULL) {
log_debug("%s: no next mode", __func__);
wp->screen = &wp->base;
} else {
log_debug("%s: next mode is %s", __func__, next->mode->name);
wp->screen = next->screen;
if (next->mode->resize != NULL)
next->mode->resize(next, wp->sx, wp->sy);
}
wp->flags |= (PANE_REDRAW|PANE_CHANGED);
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server_redraw_window_borders(wp->window);
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server_status_window(wp->window);
notify_pane("pane-mode-changed", wp);
}
void
window_pane_reset_mode_all(struct window_pane *wp)
{
while (!TAILQ_EMPTY(&wp->modes))
window_pane_reset_mode(wp);
}
static void
window_pane_copy_key(struct window_pane *wp, key_code key)
{
struct window_pane *loop;
TAILQ_FOREACH(loop, &wp->window->panes, entry) {
if (loop != wp &&
TAILQ_EMPTY(&loop->modes) &&
loop->fd != -1 &&
(~loop->flags & PANE_INPUTOFF) &&
window_pane_visible(loop) &&
options_get_number(loop->options, "synchronize-panes"))
input_key_pane(loop, key, NULL);
}
}
int
window_pane_key(struct window_pane *wp, struct client *c, struct session *s,
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struct winlink *wl, key_code key, struct mouse_event *m)
{
struct window_mode_entry *wme;
if (KEYC_IS_MOUSE(key) && m == NULL)
return (-1);
wme = TAILQ_FIRST(&wp->modes);
if (wme != NULL) {
if (wme->mode->key != NULL && c != NULL) {
key &= ~KEYC_MASK_FLAGS;
wme->mode->key(wme, c, s, wl, key, m);
}
return (0);
}
if (wp->fd == -1 || wp->flags & PANE_INPUTOFF)
return (0);
if (input_key_pane(wp, key, m) != 0)
return (-1);
if (KEYC_IS_MOUSE(key))
return (0);
if (options_get_number(wp->options, "synchronize-panes"))
window_pane_copy_key(wp, key);
return (0);
}
int
window_pane_visible(struct window_pane *wp)
{
Support for windows larger than visible on the attached client. This has been a limitation for a long time. There are two new options, window-size and default-size, and a new command, resize-window. The force-width and force-height options and the session_width and session_height formats have been removed. The new window-size option tells tmux how to work out the size of windows: largest means it picks the size of the largest session, smallest the smallest session (similar to the old behaviour) and manual means that it does not automatically resize windows. The default is currently largest but this may change. aggressive-resize modifies the choice of session for largest and smallest as it did before. If a window is in a session attached to a client that is too small, only part of the window is shown. tmux attempts to keep the cursor visible, so the part of the window displayed is changed as the cursor moves (with a small delay, to try and avoid excess redrawing when applications redraw status lines or similar that are not currently visible). The offset of the visible portion of the window is shown in status-right. Drawing windows which are larger than the client is not as efficient as those which fit, particularly when the cursor moves, so it is recommended to avoid using this on slow machines or networks (set window-size to smallest or manual). The resize-window command can be used to resize a window manually. If it is used, the window-size option is automatically set to manual for the window (undo this with "setw -u window-size"). resize-window works in a similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a sets the window to the size of the smallest client (what it would be if window-size was smallest) and -A the largest. For the same behaviour as force-width or force-height, use resize-window -x or -y, and "setw -u window-size" to revert to automatic sizing.. If the global window-size option is set to manual, the default-size option is used for new windows. If -x or -y is used with new-session, that sets the default-size option for the new session. The maximum size of a window is 10000x10000. But expect applications to complain and much higher memory use if making a window excessively big. The minimum size is the size required for the current layout including borders. The refresh-client command can be used to pan around a window, -U -D -L -R moves up, down, left or right and -c returns to automatic cursor tracking. The position is reset when the current window is changed.
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if (~wp->window->flags & WINDOW_ZOOMED)
return (1);
return (wp == wp->window->active);
}
u_int
window_pane_search(struct window_pane *wp, const char *term, int regex,
int ignore)
{
struct screen *s = &wp->base;
regex_t r;
char *new = NULL, *line;
u_int i;
int flags = 0, found;
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size_t n;
if (!regex) {
if (ignore)
flags |= FNM_CASEFOLD;
xasprintf(&new, "*%s*", term);
} else {
if (ignore)
flags |= REG_ICASE;
if (regcomp(&r, term, flags|REG_EXTENDED) != 0)
return (0);
}
for (i = 0; i < screen_size_y(s); i++) {
line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
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for (n = strlen(line); n > 0; n--) {
if (!isspace((u_char)line[n - 1]))
break;
line[n - 1] = '\0';
}
log_debug("%s: %s", __func__, line);
if (!regex)
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found = (fnmatch(new, line, flags) == 0);
else
found = (regexec(&r, line, 0, NULL, 0) == 0);
free(line);
if (found)
break;
}
if (!regex)
free(new);
else
regfree(&r);
if (i == screen_size_y(s))
return (0);
return (i + 1);
}
/* Get MRU pane from a list. */
static struct window_pane *
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window_pane_choose_best(struct window_pane **list, u_int size)
{
struct window_pane *next, *best;
u_int i;
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if (size == 0)
return (NULL);
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best = list[0];
for (i = 1; i < size; i++) {
next = list[i];
if (next->active_point > best->active_point)
best = next;
}
return (best);
}
/*
* Find the pane directly above another. We build a list of those adjacent to
* top edge and then choose the best.
*/
struct window_pane *
window_pane_find_up(struct window_pane *wp)
{
struct window *w;
2015-04-25 18:56:05 +00:00
struct window_pane *next, *best, **list;
u_int edge, left, right, end, size;
int status, found;
Support for windows larger than visible on the attached client. This has been a limitation for a long time. There are two new options, window-size and default-size, and a new command, resize-window. The force-width and force-height options and the session_width and session_height formats have been removed. The new window-size option tells tmux how to work out the size of windows: largest means it picks the size of the largest session, smallest the smallest session (similar to the old behaviour) and manual means that it does not automatically resize windows. The default is currently largest but this may change. aggressive-resize modifies the choice of session for largest and smallest as it did before. If a window is in a session attached to a client that is too small, only part of the window is shown. tmux attempts to keep the cursor visible, so the part of the window displayed is changed as the cursor moves (with a small delay, to try and avoid excess redrawing when applications redraw status lines or similar that are not currently visible). The offset of the visible portion of the window is shown in status-right. Drawing windows which are larger than the client is not as efficient as those which fit, particularly when the cursor moves, so it is recommended to avoid using this on slow machines or networks (set window-size to smallest or manual). The resize-window command can be used to resize a window manually. If it is used, the window-size option is automatically set to manual for the window (undo this with "setw -u window-size"). resize-window works in a similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a sets the window to the size of the smallest client (what it would be if window-size was smallest) and -A the largest. For the same behaviour as force-width or force-height, use resize-window -x or -y, and "setw -u window-size" to revert to automatic sizing.. If the global window-size option is set to manual, the default-size option is used for new windows. If -x or -y is used with new-session, that sets the default-size option for the new session. The maximum size of a window is 10000x10000. But expect applications to complain and much higher memory use if making a window excessively big. The minimum size is the size required for the current layout including borders. The refresh-client command can be used to pan around a window, -U -D -L -R moves up, down, left or right and -c returns to automatic cursor tracking. The position is reset when the current window is changed.
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if (wp == NULL)
return (NULL);
w = wp->window;
status = options_get_number(w->options, "pane-border-status");
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list = NULL;
size = 0;
edge = wp->yoff;
if (status == PANE_STATUS_TOP) {
if (edge == 1)
edge = w->sy + 1;
} else if (status == PANE_STATUS_BOTTOM) {
if (edge == 0)
edge = w->sy;
} else {
if (edge == 0)
edge = w->sy + 1;
}
left = wp->xoff;
right = wp->xoff + wp->sx;
TAILQ_FOREACH(next, &w->panes, entry) {
Support for windows larger than visible on the attached client. This has been a limitation for a long time. There are two new options, window-size and default-size, and a new command, resize-window. The force-width and force-height options and the session_width and session_height formats have been removed. The new window-size option tells tmux how to work out the size of windows: largest means it picks the size of the largest session, smallest the smallest session (similar to the old behaviour) and manual means that it does not automatically resize windows. The default is currently largest but this may change. aggressive-resize modifies the choice of session for largest and smallest as it did before. If a window is in a session attached to a client that is too small, only part of the window is shown. tmux attempts to keep the cursor visible, so the part of the window displayed is changed as the cursor moves (with a small delay, to try and avoid excess redrawing when applications redraw status lines or similar that are not currently visible). The offset of the visible portion of the window is shown in status-right. Drawing windows which are larger than the client is not as efficient as those which fit, particularly when the cursor moves, so it is recommended to avoid using this on slow machines or networks (set window-size to smallest or manual). The resize-window command can be used to resize a window manually. If it is used, the window-size option is automatically set to manual for the window (undo this with "setw -u window-size"). resize-window works in a similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a sets the window to the size of the smallest client (what it would be if window-size was smallest) and -A the largest. For the same behaviour as force-width or force-height, use resize-window -x or -y, and "setw -u window-size" to revert to automatic sizing.. If the global window-size option is set to manual, the default-size option is used for new windows. If -x or -y is used with new-session, that sets the default-size option for the new session. The maximum size of a window is 10000x10000. But expect applications to complain and much higher memory use if making a window excessively big. The minimum size is the size required for the current layout including borders. The refresh-client command can be used to pan around a window, -U -D -L -R moves up, down, left or right and -c returns to automatic cursor tracking. The position is reset when the current window is changed.
2018-10-18 08:38:01 +00:00
if (next == wp)
continue;
if (next->yoff + next->sy + 1 != edge)
continue;
end = next->xoff + next->sx - 1;
found = 0;
if (next->xoff < left && end > right)
found = 1;
else if (next->xoff >= left && next->xoff <= right)
found = 1;
else if (end >= left && end <= right)
found = 1;
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if (!found)
continue;
list = xreallocarray(list, size + 1, sizeof *list);
list[size++] = next;
}
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best = window_pane_choose_best(list, size);
free(list);
return (best);
}
/* Find the pane directly below another. */
struct window_pane *
window_pane_find_down(struct window_pane *wp)
{
struct window *w;
2015-04-25 18:56:05 +00:00
struct window_pane *next, *best, **list;
u_int edge, left, right, end, size;
int status, found;
Support for windows larger than visible on the attached client. This has been a limitation for a long time. There are two new options, window-size and default-size, and a new command, resize-window. The force-width and force-height options and the session_width and session_height formats have been removed. The new window-size option tells tmux how to work out the size of windows: largest means it picks the size of the largest session, smallest the smallest session (similar to the old behaviour) and manual means that it does not automatically resize windows. The default is currently largest but this may change. aggressive-resize modifies the choice of session for largest and smallest as it did before. If a window is in a session attached to a client that is too small, only part of the window is shown. tmux attempts to keep the cursor visible, so the part of the window displayed is changed as the cursor moves (with a small delay, to try and avoid excess redrawing when applications redraw status lines or similar that are not currently visible). The offset of the visible portion of the window is shown in status-right. Drawing windows which are larger than the client is not as efficient as those which fit, particularly when the cursor moves, so it is recommended to avoid using this on slow machines or networks (set window-size to smallest or manual). The resize-window command can be used to resize a window manually. If it is used, the window-size option is automatically set to manual for the window (undo this with "setw -u window-size"). resize-window works in a similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a sets the window to the size of the smallest client (what it would be if window-size was smallest) and -A the largest. For the same behaviour as force-width or force-height, use resize-window -x or -y, and "setw -u window-size" to revert to automatic sizing.. If the global window-size option is set to manual, the default-size option is used for new windows. If -x or -y is used with new-session, that sets the default-size option for the new session. The maximum size of a window is 10000x10000. But expect applications to complain and much higher memory use if making a window excessively big. The minimum size is the size required for the current layout including borders. The refresh-client command can be used to pan around a window, -U -D -L -R moves up, down, left or right and -c returns to automatic cursor tracking. The position is reset when the current window is changed.
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if (wp == NULL)
return (NULL);
w = wp->window;
status = options_get_number(w->options, "pane-border-status");
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list = NULL;
size = 0;
edge = wp->yoff + wp->sy + 1;
if (status == PANE_STATUS_TOP) {
if (edge >= w->sy)
edge = 1;
} else if (status == PANE_STATUS_BOTTOM) {
if (edge >= w->sy - 1)
edge = 0;
} else {
if (edge >= w->sy)
edge = 0;
}
left = wp->xoff;
right = wp->xoff + wp->sx;
TAILQ_FOREACH(next, &w->panes, entry) {
Support for windows larger than visible on the attached client. This has been a limitation for a long time. There are two new options, window-size and default-size, and a new command, resize-window. The force-width and force-height options and the session_width and session_height formats have been removed. The new window-size option tells tmux how to work out the size of windows: largest means it picks the size of the largest session, smallest the smallest session (similar to the old behaviour) and manual means that it does not automatically resize windows. The default is currently largest but this may change. aggressive-resize modifies the choice of session for largest and smallest as it did before. If a window is in a session attached to a client that is too small, only part of the window is shown. tmux attempts to keep the cursor visible, so the part of the window displayed is changed as the cursor moves (with a small delay, to try and avoid excess redrawing when applications redraw status lines or similar that are not currently visible). The offset of the visible portion of the window is shown in status-right. Drawing windows which are larger than the client is not as efficient as those which fit, particularly when the cursor moves, so it is recommended to avoid using this on slow machines or networks (set window-size to smallest or manual). The resize-window command can be used to resize a window manually. If it is used, the window-size option is automatically set to manual for the window (undo this with "setw -u window-size"). resize-window works in a similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a sets the window to the size of the smallest client (what it would be if window-size was smallest) and -A the largest. For the same behaviour as force-width or force-height, use resize-window -x or -y, and "setw -u window-size" to revert to automatic sizing.. If the global window-size option is set to manual, the default-size option is used for new windows. If -x or -y is used with new-session, that sets the default-size option for the new session. The maximum size of a window is 10000x10000. But expect applications to complain and much higher memory use if making a window excessively big. The minimum size is the size required for the current layout including borders. The refresh-client command can be used to pan around a window, -U -D -L -R moves up, down, left or right and -c returns to automatic cursor tracking. The position is reset when the current window is changed.
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if (next == wp)
continue;
if (next->yoff != edge)
continue;
end = next->xoff + next->sx - 1;
found = 0;
if (next->xoff < left && end > right)
found = 1;
else if (next->xoff >= left && next->xoff <= right)
found = 1;
else if (end >= left && end <= right)
found = 1;
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if (!found)
continue;
list = xreallocarray(list, size + 1, sizeof *list);
list[size++] = next;
}
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best = window_pane_choose_best(list, size);
free(list);
return (best);
}
/* Find the pane directly to the left of another. */
struct window_pane *
window_pane_find_left(struct window_pane *wp)
{
struct window *w;
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struct window_pane *next, *best, **list;
u_int edge, top, bottom, end, size;
int found;
Support for windows larger than visible on the attached client. This has been a limitation for a long time. There are two new options, window-size and default-size, and a new command, resize-window. The force-width and force-height options and the session_width and session_height formats have been removed. The new window-size option tells tmux how to work out the size of windows: largest means it picks the size of the largest session, smallest the smallest session (similar to the old behaviour) and manual means that it does not automatically resize windows. The default is currently largest but this may change. aggressive-resize modifies the choice of session for largest and smallest as it did before. If a window is in a session attached to a client that is too small, only part of the window is shown. tmux attempts to keep the cursor visible, so the part of the window displayed is changed as the cursor moves (with a small delay, to try and avoid excess redrawing when applications redraw status lines or similar that are not currently visible). The offset of the visible portion of the window is shown in status-right. Drawing windows which are larger than the client is not as efficient as those which fit, particularly when the cursor moves, so it is recommended to avoid using this on slow machines or networks (set window-size to smallest or manual). The resize-window command can be used to resize a window manually. If it is used, the window-size option is automatically set to manual for the window (undo this with "setw -u window-size"). resize-window works in a similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a sets the window to the size of the smallest client (what it would be if window-size was smallest) and -A the largest. For the same behaviour as force-width or force-height, use resize-window -x or -y, and "setw -u window-size" to revert to automatic sizing.. If the global window-size option is set to manual, the default-size option is used for new windows. If -x or -y is used with new-session, that sets the default-size option for the new session. The maximum size of a window is 10000x10000. But expect applications to complain and much higher memory use if making a window excessively big. The minimum size is the size required for the current layout including borders. The refresh-client command can be used to pan around a window, -U -D -L -R moves up, down, left or right and -c returns to automatic cursor tracking. The position is reset when the current window is changed.
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if (wp == NULL)
return (NULL);
w = wp->window;
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list = NULL;
size = 0;
edge = wp->xoff;
if (edge == 0)
edge = w->sx + 1;
top = wp->yoff;
bottom = wp->yoff + wp->sy;
TAILQ_FOREACH(next, &w->panes, entry) {
Support for windows larger than visible on the attached client. This has been a limitation for a long time. There are two new options, window-size and default-size, and a new command, resize-window. The force-width and force-height options and the session_width and session_height formats have been removed. The new window-size option tells tmux how to work out the size of windows: largest means it picks the size of the largest session, smallest the smallest session (similar to the old behaviour) and manual means that it does not automatically resize windows. The default is currently largest but this may change. aggressive-resize modifies the choice of session for largest and smallest as it did before. If a window is in a session attached to a client that is too small, only part of the window is shown. tmux attempts to keep the cursor visible, so the part of the window displayed is changed as the cursor moves (with a small delay, to try and avoid excess redrawing when applications redraw status lines or similar that are not currently visible). The offset of the visible portion of the window is shown in status-right. Drawing windows which are larger than the client is not as efficient as those which fit, particularly when the cursor moves, so it is recommended to avoid using this on slow machines or networks (set window-size to smallest or manual). The resize-window command can be used to resize a window manually. If it is used, the window-size option is automatically set to manual for the window (undo this with "setw -u window-size"). resize-window works in a similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a sets the window to the size of the smallest client (what it would be if window-size was smallest) and -A the largest. For the same behaviour as force-width or force-height, use resize-window -x or -y, and "setw -u window-size" to revert to automatic sizing.. If the global window-size option is set to manual, the default-size option is used for new windows. If -x or -y is used with new-session, that sets the default-size option for the new session. The maximum size of a window is 10000x10000. But expect applications to complain and much higher memory use if making a window excessively big. The minimum size is the size required for the current layout including borders. The refresh-client command can be used to pan around a window, -U -D -L -R moves up, down, left or right and -c returns to automatic cursor tracking. The position is reset when the current window is changed.
2018-10-18 08:38:01 +00:00
if (next == wp)
continue;
if (next->xoff + next->sx + 1 != edge)
continue;
end = next->yoff + next->sy - 1;
found = 0;
if (next->yoff < top && end > bottom)
found = 1;
else if (next->yoff >= top && next->yoff <= bottom)
found = 1;
else if (end >= top && end <= bottom)
found = 1;
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if (!found)
continue;
list = xreallocarray(list, size + 1, sizeof *list);
list[size++] = next;
}
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best = window_pane_choose_best(list, size);
free(list);
return (best);
}
/* Find the pane directly to the right of another. */
struct window_pane *
window_pane_find_right(struct window_pane *wp)
{
struct window *w;
2015-04-25 18:56:05 +00:00
struct window_pane *next, *best, **list;
u_int edge, top, bottom, end, size;
int found;
Support for windows larger than visible on the attached client. This has been a limitation for a long time. There are two new options, window-size and default-size, and a new command, resize-window. The force-width and force-height options and the session_width and session_height formats have been removed. The new window-size option tells tmux how to work out the size of windows: largest means it picks the size of the largest session, smallest the smallest session (similar to the old behaviour) and manual means that it does not automatically resize windows. The default is currently largest but this may change. aggressive-resize modifies the choice of session for largest and smallest as it did before. If a window is in a session attached to a client that is too small, only part of the window is shown. tmux attempts to keep the cursor visible, so the part of the window displayed is changed as the cursor moves (with a small delay, to try and avoid excess redrawing when applications redraw status lines or similar that are not currently visible). The offset of the visible portion of the window is shown in status-right. Drawing windows which are larger than the client is not as efficient as those which fit, particularly when the cursor moves, so it is recommended to avoid using this on slow machines or networks (set window-size to smallest or manual). The resize-window command can be used to resize a window manually. If it is used, the window-size option is automatically set to manual for the window (undo this with "setw -u window-size"). resize-window works in a similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a sets the window to the size of the smallest client (what it would be if window-size was smallest) and -A the largest. For the same behaviour as force-width or force-height, use resize-window -x or -y, and "setw -u window-size" to revert to automatic sizing.. If the global window-size option is set to manual, the default-size option is used for new windows. If -x or -y is used with new-session, that sets the default-size option for the new session. The maximum size of a window is 10000x10000. But expect applications to complain and much higher memory use if making a window excessively big. The minimum size is the size required for the current layout including borders. The refresh-client command can be used to pan around a window, -U -D -L -R moves up, down, left or right and -c returns to automatic cursor tracking. The position is reset when the current window is changed.
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if (wp == NULL)
return (NULL);
w = wp->window;
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list = NULL;
size = 0;
edge = wp->xoff + wp->sx + 1;
if (edge >= w->sx)
edge = 0;
top = wp->yoff;
bottom = wp->yoff + wp->sy;
TAILQ_FOREACH(next, &w->panes, entry) {
Support for windows larger than visible on the attached client. This has been a limitation for a long time. There are two new options, window-size and default-size, and a new command, resize-window. The force-width and force-height options and the session_width and session_height formats have been removed. The new window-size option tells tmux how to work out the size of windows: largest means it picks the size of the largest session, smallest the smallest session (similar to the old behaviour) and manual means that it does not automatically resize windows. The default is currently largest but this may change. aggressive-resize modifies the choice of session for largest and smallest as it did before. If a window is in a session attached to a client that is too small, only part of the window is shown. tmux attempts to keep the cursor visible, so the part of the window displayed is changed as the cursor moves (with a small delay, to try and avoid excess redrawing when applications redraw status lines or similar that are not currently visible). The offset of the visible portion of the window is shown in status-right. Drawing windows which are larger than the client is not as efficient as those which fit, particularly when the cursor moves, so it is recommended to avoid using this on slow machines or networks (set window-size to smallest or manual). The resize-window command can be used to resize a window manually. If it is used, the window-size option is automatically set to manual for the window (undo this with "setw -u window-size"). resize-window works in a similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a sets the window to the size of the smallest client (what it would be if window-size was smallest) and -A the largest. For the same behaviour as force-width or force-height, use resize-window -x or -y, and "setw -u window-size" to revert to automatic sizing.. If the global window-size option is set to manual, the default-size option is used for new windows. If -x or -y is used with new-session, that sets the default-size option for the new session. The maximum size of a window is 10000x10000. But expect applications to complain and much higher memory use if making a window excessively big. The minimum size is the size required for the current layout including borders. The refresh-client command can be used to pan around a window, -U -D -L -R moves up, down, left or right and -c returns to automatic cursor tracking. The position is reset when the current window is changed.
2018-10-18 08:38:01 +00:00
if (next == wp)
continue;
if (next->xoff != edge)
continue;
end = next->yoff + next->sy - 1;
found = 0;
if (next->yoff < top && end > bottom)
found = 1;
else if (next->yoff >= top && next->yoff <= bottom)
found = 1;
else if (end >= top && end <= bottom)
found = 1;
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if (!found)
continue;
list = xreallocarray(list, size + 1, sizeof *list);
list[size++] = next;
}
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best = window_pane_choose_best(list, size);
free(list);
return (best);
}
/* Clear alert flags for a winlink */
void
winlink_clear_flags(struct winlink *wl)
{
struct winlink *loop;
wl->window->flags &= ~WINDOW_ALERTFLAGS;
TAILQ_FOREACH(loop, &wl->window->winlinks, wentry) {
if ((loop->flags & WINLINK_ALERTFLAGS) != 0) {
loop->flags &= ~WINLINK_ALERTFLAGS;
server_status_session(loop->session);
}
}
}
/* Shuffle window indexes up. */
int
winlink_shuffle_up(struct session *s, struct winlink *wl, int before)
{
int idx, last;
if (wl == NULL)
return (-1);
if (before)
idx = wl->idx;
else
idx = wl->idx + 1;
/* Find the next free index. */
for (last = idx; last < INT_MAX; last++) {
if (winlink_find_by_index(&s->windows, last) == NULL)
break;
}
if (last == INT_MAX)
return (-1);
/* Move everything from last - 1 to idx up a bit. */
for (; last > idx; last--) {
wl = winlink_find_by_index(&s->windows, last - 1);
RB_REMOVE(winlinks, &s->windows, wl);
wl->idx++;
RB_INSERT(winlinks, &s->windows, wl);
}
return (idx);
}
static void
window_pane_input_callback(struct client *c, __unused const char *path,
int error, int closed, struct evbuffer *buffer, void *data)
{
struct window_pane_input_data *cdata = data;
struct window_pane *wp;
u_char *buf = EVBUFFER_DATA(buffer);
size_t len = EVBUFFER_LENGTH(buffer);
wp = window_pane_find_by_id(cdata->wp);
if (wp == NULL || closed || error != 0 || c->flags & CLIENT_DEAD) {
if (wp == NULL)
c->flags |= CLIENT_EXIT;
evbuffer_drain(buffer, len);
cmdq_continue(cdata->item);
server_client_unref(c);
free(cdata);
return;
}
input_parse_buffer(wp, buf, len);
evbuffer_drain(buffer, len);
}
int
window_pane_start_input(struct window_pane *wp, struct cmdq_item *item,
char **cause)
{
struct client *c = cmdq_get_client(item);
struct window_pane_input_data *cdata;
if (~wp->flags & PANE_EMPTY) {
*cause = xstrdup("pane is not empty");
return (-1);
}
cdata = xmalloc(sizeof *cdata);
cdata->item = item;
cdata->wp = wp->id;
c->references++;
file_read(c, "-", window_pane_input_callback, cdata);
return (0);
}
void *
window_pane_get_new_data(struct window_pane *wp,
struct window_pane_offset *wpo, size_t *size)
{
size_t used = wpo->used - wp->base_offset;
*size = EVBUFFER_LENGTH(wp->event->input) - used;
return (EVBUFFER_DATA(wp->event->input) + used);
}
void
window_pane_update_used_data(struct window_pane *wp,
struct window_pane_offset *wpo, size_t size)
{
size_t used = wpo->used - wp->base_offset;
if (size > EVBUFFER_LENGTH(wp->event->input) - used)
size = EVBUFFER_LENGTH(wp->event->input) - used;
wpo->used += size;
}