mirror of https://github.com/tmux/tmux.git
1566 lines
32 KiB
C
1566 lines
32 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <fnmatch.h>
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#include <regex.h>
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#include <signal.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include "tmux.h"
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/*
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* Each window is attached to a number of panes, each of which is a pty. This
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* file contains code to handle them.
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*
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* A pane has two buffers attached, these are filled and emptied by the main
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* server poll loop. Output data is received from pty's in screen format,
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* translated and returned as a series of escape sequences and strings via
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* input_parse (in input.c). Input data is received as key codes and written
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* directly via input_key.
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*
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* Each pane also has a "virtual" screen (screen.c) which contains the current
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* state and is redisplayed when the window is reattached to a client.
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*
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* Windows are stored directly on a global array and wrapped in any number of
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* winlink structs to be linked onto local session RB trees. A reference count
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* is maintained and a window removed from the global list and destroyed when
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* it reaches zero.
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*/
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/* Global window list. */
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struct windows windows;
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/* Global panes tree. */
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struct window_pane_tree all_window_panes;
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static u_int next_window_pane_id;
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static u_int next_window_id;
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static u_int next_active_point;
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/* List of window modes. */
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const struct window_mode *all_window_modes[] = {
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&window_buffer_mode,
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&window_client_mode,
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&window_clock_mode,
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&window_copy_mode,
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&window_tree_mode,
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&window_view_mode,
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NULL
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};
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struct window_pane_input_data {
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struct cmdq_item *item;
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u_int wp;
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};
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static struct window_pane *window_pane_create(struct window *, u_int, u_int,
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u_int);
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static void window_pane_destroy(struct window_pane *);
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RB_GENERATE(windows, window, entry, window_cmp);
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RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
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RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
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int
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window_cmp(struct window *w1, struct window *w2)
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{
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return (w1->id - w2->id);
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}
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int
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winlink_cmp(struct winlink *wl1, struct winlink *wl2)
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{
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return (wl1->idx - wl2->idx);
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}
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int
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window_pane_cmp(struct window_pane *wp1, struct window_pane *wp2)
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{
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return (wp1->id - wp2->id);
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}
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struct winlink *
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winlink_find_by_window(struct winlinks *wwl, struct window *w)
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{
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struct winlink *wl;
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RB_FOREACH(wl, winlinks, wwl) {
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if (wl->window == w)
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return (wl);
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}
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return (NULL);
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}
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struct winlink *
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winlink_find_by_index(struct winlinks *wwl, int idx)
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{
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struct winlink wl;
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if (idx < 0)
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fatalx("bad index");
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wl.idx = idx;
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return (RB_FIND(winlinks, wwl, &wl));
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}
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struct winlink *
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winlink_find_by_window_id(struct winlinks *wwl, u_int id)
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{
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struct winlink *wl;
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RB_FOREACH(wl, winlinks, wwl) {
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if (wl->window->id == id)
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return (wl);
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}
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return (NULL);
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}
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static int
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winlink_next_index(struct winlinks *wwl, int idx)
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{
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int i;
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i = idx;
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do {
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if (winlink_find_by_index(wwl, i) == NULL)
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return (i);
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if (i == INT_MAX)
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i = 0;
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else
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i++;
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} while (i != idx);
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return (-1);
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}
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u_int
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winlink_count(struct winlinks *wwl)
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{
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struct winlink *wl;
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u_int n;
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n = 0;
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RB_FOREACH(wl, winlinks, wwl)
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n++;
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return (n);
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}
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struct winlink *
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winlink_add(struct winlinks *wwl, int idx)
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{
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struct winlink *wl;
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if (idx < 0) {
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if ((idx = winlink_next_index(wwl, -idx - 1)) == -1)
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return (NULL);
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} else if (winlink_find_by_index(wwl, idx) != NULL)
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return (NULL);
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wl = xcalloc(1, sizeof *wl);
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wl->idx = idx;
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RB_INSERT(winlinks, wwl, wl);
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return (wl);
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}
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void
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winlink_set_window(struct winlink *wl, struct window *w)
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{
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if (wl->window != NULL) {
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TAILQ_REMOVE(&wl->window->winlinks, wl, wentry);
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window_remove_ref(wl->window, __func__);
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}
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TAILQ_INSERT_TAIL(&w->winlinks, wl, wentry);
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wl->window = w;
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window_add_ref(w, __func__);
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}
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void
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winlink_remove(struct winlinks *wwl, struct winlink *wl)
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{
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struct window *w = wl->window;
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if (w != NULL) {
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TAILQ_REMOVE(&w->winlinks, wl, wentry);
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window_remove_ref(w, __func__);
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}
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RB_REMOVE(winlinks, wwl, wl);
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free(wl);
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}
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struct winlink *
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winlink_next(struct winlink *wl)
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{
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return (RB_NEXT(winlinks, wwl, wl));
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}
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struct winlink *
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winlink_previous(struct winlink *wl)
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{
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return (RB_PREV(winlinks, wwl, wl));
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}
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struct winlink *
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winlink_next_by_number(struct winlink *wl, struct session *s, int n)
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{
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for (; n > 0; n--) {
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if ((wl = RB_NEXT(winlinks, wwl, wl)) == NULL)
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wl = RB_MIN(winlinks, &s->windows);
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}
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return (wl);
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}
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struct winlink *
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winlink_previous_by_number(struct winlink *wl, struct session *s, int n)
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{
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for (; n > 0; n--) {
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if ((wl = RB_PREV(winlinks, wwl, wl)) == NULL)
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wl = RB_MAX(winlinks, &s->windows);
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}
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return (wl);
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}
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void
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winlink_stack_push(struct winlink_stack *stack, struct winlink *wl)
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{
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if (wl == NULL)
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return;
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winlink_stack_remove(stack, wl);
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TAILQ_INSERT_HEAD(stack, wl, sentry);
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}
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void
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winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
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{
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struct winlink *wl2;
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if (wl == NULL)
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return;
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TAILQ_FOREACH(wl2, stack, sentry) {
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if (wl2 == wl) {
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TAILQ_REMOVE(stack, wl, sentry);
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return;
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}
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}
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}
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struct window *
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window_find_by_id_str(const char *s)
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{
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const char *errstr;
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u_int id;
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if (*s != '@')
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return (NULL);
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id = strtonum(s + 1, 0, UINT_MAX, &errstr);
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if (errstr != NULL)
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return (NULL);
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return (window_find_by_id(id));
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}
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struct window *
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window_find_by_id(u_int id)
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{
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struct window w;
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w.id = id;
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return (RB_FIND(windows, &windows, &w));
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}
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void
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window_update_activity(struct window *w)
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{
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gettimeofday(&w->activity_time, NULL);
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alerts_queue(w, WINDOW_ACTIVITY);
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}
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struct window *
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window_create(u_int sx, u_int sy, u_int xpixel, u_int ypixel)
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{
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struct window *w;
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if (xpixel == 0)
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xpixel = DEFAULT_XPIXEL;
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if (ypixel == 0)
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ypixel = DEFAULT_YPIXEL;
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w = xcalloc(1, sizeof *w);
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w->name = xstrdup("");
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w->flags = 0;
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TAILQ_INIT(&w->panes);
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w->active = NULL;
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w->lastlayout = -1;
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w->layout_root = NULL;
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w->sx = sx;
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w->sy = sy;
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w->xpixel = xpixel;
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w->ypixel = ypixel;
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w->options = options_create(global_w_options);
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w->references = 0;
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TAILQ_INIT(&w->winlinks);
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w->id = next_window_id++;
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RB_INSERT(windows, &windows, w);
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window_update_activity(w);
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return (w);
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}
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static void
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window_destroy(struct window *w)
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{
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log_debug("window @%u destroyed (%d references)", w->id, w->references);
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RB_REMOVE(windows, &windows, w);
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if (w->layout_root != NULL)
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layout_free_cell(w->layout_root);
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if (w->saved_layout_root != NULL)
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layout_free_cell(w->saved_layout_root);
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free(w->old_layout);
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window_destroy_panes(w);
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if (event_initialized(&w->name_event))
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evtimer_del(&w->name_event);
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if (event_initialized(&w->alerts_timer))
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evtimer_del(&w->alerts_timer);
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if (event_initialized(&w->offset_timer))
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event_del(&w->offset_timer);
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options_free(w->options);
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free(w->name);
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free(w);
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}
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int
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window_pane_destroy_ready(struct window_pane *wp)
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{
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int n;
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if (wp->pipe_fd != -1) {
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if (EVBUFFER_LENGTH(wp->pipe_event->output) != 0)
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return (0);
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if (ioctl(wp->fd, FIONREAD, &n) != -1 && n > 0)
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return (0);
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}
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if (~wp->flags & PANE_EXITED)
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return (0);
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return (1);
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}
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void
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window_add_ref(struct window *w, const char *from)
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{
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w->references++;
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log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references);
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}
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void
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window_remove_ref(struct window *w, const char *from)
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{
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w->references--;
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log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references);
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if (w->references == 0)
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window_destroy(w);
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}
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void
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window_set_name(struct window *w, const char *new_name)
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{
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free(w->name);
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utf8_stravis(&w->name, new_name, VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL);
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notify_window("window-renamed", w);
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}
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void
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window_resize(struct window *w, u_int sx, u_int sy, int xpixel, int ypixel)
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{
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if (xpixel == 0)
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xpixel = DEFAULT_XPIXEL;
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if (ypixel == 0)
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ypixel = DEFAULT_YPIXEL;
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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,
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ypixel == -1 ? w->ypixel : (u_int)ypixel);
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w->sx = sx;
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w->sy = sy;
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if (xpixel != -1)
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w->xpixel = xpixel;
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if (ypixel != -1)
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w->ypixel = ypixel;
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}
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void
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window_pane_send_resize(struct window_pane *wp, int yadjust)
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{
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struct window *w = wp->window;
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struct winsize ws;
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if (wp->fd == -1)
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return;
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memset(&ws, 0, sizeof ws);
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ws.ws_col = wp->sx;
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ws.ws_row = wp->sy + yadjust;
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ws.ws_xpixel = w->xpixel * ws.ws_col;
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ws.ws_ypixel = w->ypixel * ws.ws_row;
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if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
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#ifdef __sun
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/*
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* Some versions of Solaris apparently can return an error when
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* resizing; don't know why this happens, can't reproduce on
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* other platforms and ignoring it doesn't seem to cause any
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* issues.
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*/
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if (errno != EINVAL && errno != ENXIO)
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#endif
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fatal("ioctl failed");
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}
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int
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window_has_pane(struct window *w, struct window_pane *wp)
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{
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struct window_pane *wp1;
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TAILQ_FOREACH(wp1, &w->panes, entry) {
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if (wp1 == wp)
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return (1);
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}
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return (0);
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}
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int
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window_set_active_pane(struct window *w, struct window_pane *wp, int notify)
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{
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log_debug("%s: pane %%%u", __func__, wp->id);
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if (wp == w->active)
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return (0);
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w->last = w->active;
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w->active = wp;
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w->active->active_point = next_active_point++;
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w->active->flags |= PANE_CHANGED;
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tty_update_window_offset(w);
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if (notify)
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notify_window("window-pane-changed", w);
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return (1);
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}
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void
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window_redraw_active_switch(struct window *w, struct window_pane *wp)
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{
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struct style *sy1, *sy2;
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int c1, c2;
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if (wp == w->active)
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return;
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for (;;) {
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/*
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* If the active and inactive styles or palettes are different,
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* need to redraw the panes.
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*/
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sy1 = &wp->cached_style;
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sy2 = &wp->cached_active_style;
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if (!style_equal(sy1, sy2))
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wp->flags |= PANE_REDRAW;
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else {
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c1 = window_pane_get_palette(wp, sy1->gc.fg);
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c2 = window_pane_get_palette(wp, sy2->gc.fg);
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if (c1 != c2)
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wp->flags |= PANE_REDRAW;
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else {
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c1 = window_pane_get_palette(wp, sy1->gc.bg);
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c2 = window_pane_get_palette(wp, sy2->gc.bg);
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if (c1 != c2)
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wp->flags |= PANE_REDRAW;
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}
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}
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if (wp == w->active)
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break;
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wp = w->active;
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}
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}
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|
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struct window_pane *
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window_get_active_at(struct window *w, u_int x, u_int y)
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{
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struct window_pane *wp;
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TAILQ_FOREACH(wp, &w->panes, entry) {
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if (!window_pane_visible(wp))
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continue;
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if (x < wp->xoff || x > wp->xoff + wp->sx)
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continue;
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if (y < wp->yoff || y > wp->yoff + wp->sy)
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continue;
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return (wp);
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}
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return (NULL);
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}
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|
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struct window_pane *
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window_find_string(struct window *w, const char *s)
|
|
{
|
|
u_int x, y, top = 0, bottom = w->sy - 1;
|
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int status;
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|
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x = w->sx / 2;
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y = w->sy / 2;
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|
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status = options_get_number(w->options, "pane-border-status");
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if (status == PANE_STATUS_TOP)
|
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top++;
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else if (status == PANE_STATUS_BOTTOM)
|
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bottom--;
|
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|
|
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);
|
|
notify_window("window-layout-changed", w);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
window_push_zoom(struct window *w, int flag)
|
|
{
|
|
log_debug("%s: @%u %d", __func__, w->id,
|
|
flag && (w->flags & WINDOW_ZOOMED));
|
|
if (flag && (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);
|
|
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) {
|
|
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);
|
|
} 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);
|
|
}
|
|
return (wp);
|
|
}
|
|
|
|
void
|
|
window_lost_pane(struct window *w, struct window_pane *wp)
|
|
{
|
|
log_debug("%s: @%u pane %%%u", __func__, w->id, wp->id);
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
*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)
|
|
{
|
|
struct session *s = wl->session;
|
|
static char flags[32];
|
|
int pos;
|
|
|
|
pos = 0;
|
|
if (wl->flags & WINLINK_ACTIVITY)
|
|
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++] = '-';
|
|
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->argc = 0;
|
|
wp->argv = NULL;
|
|
wp->shell = NULL;
|
|
wp->cwd = NULL;
|
|
|
|
wp->fd = -1;
|
|
wp->event = NULL;
|
|
|
|
TAILQ_INIT(&wp->modes);
|
|
|
|
wp->layout_cell = NULL;
|
|
|
|
wp->xoff = 0;
|
|
wp->yoff = 0;
|
|
|
|
wp->sx = wp->osx = sx;
|
|
wp->sy = wp->osx = sy;
|
|
|
|
wp->pipe_fd = -1;
|
|
wp->pipe_off = 0;
|
|
wp->pipe_event = NULL;
|
|
|
|
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)
|
|
{
|
|
window_pane_reset_mode_all(wp);
|
|
free(wp->searchstr);
|
|
|
|
if (wp->fd != -1) {
|
|
#ifdef HAVE_UTEMPTER
|
|
utempter_remove_record(wp->fd);
|
|
#endif
|
|
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);
|
|
|
|
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;
|
|
size_t size = EVBUFFER_LENGTH(evb);
|
|
char *new_data;
|
|
size_t new_size;
|
|
|
|
new_size = size - wp->pipe_off;
|
|
if (wp->pipe_fd != -1 && new_size > 0) {
|
|
new_data = EVBUFFER_DATA(evb) + wp->pipe_off;
|
|
bufferevent_write(wp->pipe_event, new_data, new_size);
|
|
}
|
|
|
|
log_debug("%%%u has %zu bytes", wp->id, size);
|
|
input_parse_pane(wp);
|
|
|
|
wp->pipe_off = EVBUFFER_LENGTH(evb);
|
|
}
|
|
|
|
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_setwatermark(wp->event, EV_READ, 0, READ_SIZE);
|
|
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;
|
|
|
|
if (sx == wp->sx && sy == wp->sy)
|
|
return;
|
|
wp->sx = sx;
|
|
wp->sy = sy;
|
|
|
|
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);
|
|
|
|
wp->flags |= (PANE_RESIZE|PANE_RESIZED);
|
|
}
|
|
|
|
void
|
|
window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc,
|
|
int cursor)
|
|
{
|
|
if (!options_get_number(wp->options, "alternate-screen"))
|
|
return;
|
|
screen_alternate_on(&wp->base, gc, cursor);
|
|
wp->flags |= PANE_REDRAW;
|
|
}
|
|
|
|
void
|
|
window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc,
|
|
int cursor)
|
|
{
|
|
if (!options_get_number(wp->options, "alternate-screen"))
|
|
return;
|
|
screen_alternate_off(&wp->base, gc, cursor);
|
|
wp->flags |= PANE_REDRAW;
|
|
}
|
|
|
|
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);
|
|
|
|
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);
|
|
|
|
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);
|
|
}
|
|
|
|
int
|
|
window_pane_key(struct window_pane *wp, struct client *c, struct session *s,
|
|
struct winlink *wl, key_code key, struct mouse_event *m)
|
|
{
|
|
struct window_mode_entry *wme;
|
|
struct window_pane *wp2;
|
|
|
|
if (KEYC_IS_MOUSE(key) && m == NULL)
|
|
return (-1);
|
|
|
|
wme = TAILQ_FIRST(&wp->modes);
|
|
if (wme != NULL) {
|
|
if (wme->mode->key != NULL)
|
|
wme->mode->key(wme, c, s, wl, (key & ~KEYC_XTERM), 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->window->options, "synchronize-panes")) {
|
|
TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
|
|
if (wp2 != wp &&
|
|
TAILQ_EMPTY(&wp2->modes) &&
|
|
wp2->fd != -1 &&
|
|
(~wp2->flags & PANE_INPUTOFF) &&
|
|
window_pane_visible(wp2))
|
|
input_key_pane(wp2, key, NULL);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
window_pane_visible(struct window_pane *wp)
|
|
{
|
|
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;
|
|
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));
|
|
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)
|
|
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 *
|
|
window_pane_choose_best(struct window_pane **list, u_int size)
|
|
{
|
|
struct window_pane *next, *best;
|
|
u_int i;
|
|
|
|
if (size == 0)
|
|
return (NULL);
|
|
|
|
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;
|
|
struct window_pane *next, *best, **list;
|
|
u_int edge, left, right, end, size;
|
|
int status, found;
|
|
|
|
if (wp == NULL)
|
|
return (NULL);
|
|
w = wp->window;
|
|
status = options_get_number(w->options, "pane-border-status");
|
|
|
|
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) {
|
|
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;
|
|
if (!found)
|
|
continue;
|
|
list = xreallocarray(list, size + 1, sizeof *list);
|
|
list[size++] = next;
|
|
}
|
|
|
|
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;
|
|
struct window_pane *next, *best, **list;
|
|
u_int edge, left, right, end, size;
|
|
int status, found;
|
|
|
|
if (wp == NULL)
|
|
return (NULL);
|
|
w = wp->window;
|
|
status = options_get_number(w->options, "pane-border-status");
|
|
|
|
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) {
|
|
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;
|
|
if (!found)
|
|
continue;
|
|
list = xreallocarray(list, size + 1, sizeof *list);
|
|
list[size++] = next;
|
|
}
|
|
|
|
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;
|
|
struct window_pane *next, *best, **list;
|
|
u_int edge, top, bottom, end, size;
|
|
int found;
|
|
|
|
if (wp == NULL)
|
|
return (NULL);
|
|
w = wp->window;
|
|
|
|
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) {
|
|
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;
|
|
if (!found)
|
|
continue;
|
|
list = xreallocarray(list, size + 1, sizeof *list);
|
|
list[size++] = next;
|
|
}
|
|
|
|
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;
|
|
struct window_pane *next, *best, **list;
|
|
u_int edge, top, bottom, end, size;
|
|
int found;
|
|
|
|
if (wp == NULL)
|
|
return (NULL);
|
|
w = wp->window;
|
|
|
|
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) {
|
|
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;
|
|
if (!found)
|
|
continue;
|
|
list = xreallocarray(list, size + 1, sizeof *list);
|
|
list[size++] = next;
|
|
}
|
|
|
|
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 idx, last;
|
|
|
|
if (wl == NULL)
|
|
return (-1);
|
|
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);
|
|
server_link_window(s, wl, s, last, 0, 0, NULL);
|
|
server_unlink_window(s, 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 = item->client;
|
|
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);
|
|
}
|