/* $OpenBSD$ */ /* * 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 <errno.h> #include <fcntl.h> #include <fnmatch.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include <termios.h> #include <unistd.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; u_int next_window_pane_id; u_int next_window_id; u_int next_active_point; void window_pane_timer_callback(int, short, void *); void window_pane_read_callback(struct bufferevent *, void *); void window_pane_error_callback(struct bufferevent *, short, void *); struct window_pane *window_pane_choose_best(struct window_pane **, u_int); RB_GENERATE(windows, window, entry, window_cmp); int window_cmp(struct window *w1, struct window *w2) { return (w1->id - w2->id); } RB_GENERATE(winlinks, winlink, entry, winlink_cmp); int winlink_cmp(struct winlink *wl1, struct winlink *wl2) { return (wl1->idx - wl2->idx); } RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp); 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); } return (NULL); } 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) { wl->window = w; w->references++; } void winlink_remove(struct winlinks *wwl, struct winlink *wl) { struct window *w = wl->window; RB_REMOVE(winlinks, wwl, wl); free(wl->status_text); free(wl); if (w != NULL) window_remove_ref(w); } 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 * 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_create1(u_int sx, u_int sy) { struct window *w; w = xcalloc(1, sizeof *w); w->name = NULL; w->flags = 0; TAILQ_INIT(&w->panes); w->active = NULL; w->lastlayout = -1; w->layout_root = NULL; w->sx = sx; w->sy = sy; w->options = options_create(global_w_options); w->references = 0; w->id = next_window_id++; RB_INSERT(windows, &windows, w); window_update_activity(w); return (w); } struct window * window_create(const char *name, int argc, char **argv, const char *path, const char *shell, const char *cwd, struct environ *env, struct termios *tio, u_int sx, u_int sy, u_int hlimit, char **cause) { struct window *w; struct window_pane *wp; w = window_create1(sx, sy); wp = window_add_pane(w, hlimit); layout_init(w, wp); if (window_pane_spawn(wp, argc, argv, path, shell, cwd, env, tio, cause) != 0) { window_destroy(w); return (NULL); } w->active = TAILQ_FIRST(&w->panes); if (name != NULL) { w->name = xstrdup(name); options_set_number(w->options, "automatic-rename", 0); } else w->name = default_window_name(w); return (w); } void window_destroy(struct window *w) { 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); if (event_initialized(&w->name_event)) evtimer_del(&w->name_event); if (event_initialized(&w->alerts_timer)) evtimer_del(&w->alerts_timer); options_free(w->options); window_destroy_panes(w); free(w->name); free(w); } void window_remove_ref(struct window *w) { if (w->references == 0) fatal("bad reference count"); w->references--; if (w->references == 0) window_destroy(w); } void window_set_name(struct window *w, const char *new_name) { free(w->name); w->name = xstrdup(new_name); notify_window_renamed(w); } void window_resize(struct window *w, u_int sx, u_int sy) { w->sx = sx; w->sy = sy; } 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) { if (wp == w->active) return (0); w->last = w->active; w->active = wp; while (!window_pane_visible(w->active)) { w->active = TAILQ_PREV(w->active, window_panes, entry); if (w->active == NULL) w->active = TAILQ_LAST(&w->panes, window_panes); if (w->active == wp) return (1); } w->active->active_point = next_active_point++; w->active->flags |= PANE_CHANGED; return (1); } void window_redraw_active_switch(struct window *w, struct window_pane *wp) { const struct grid_cell *agc, *wgc; if (wp == w->active) return; /* * If window-style and window-active-style are the same, we don't need * to redraw panes when switching active panes. Otherwise, if the * active or inactive pane do not have a custom style, they will need * to be redrawn. */ agc = options_get_style(w->options, "window-active-style"); wgc = options_get_style(w->options, "window-style"); if (style_equal(agc, wgc)) return; if (style_equal(&grid_default_cell, &w->active->colgc)) w->active->flags |= PANE_REDRAW; if (style_equal(&grid_default_cell, &wp->colgc)) wp->flags |= PANE_REDRAW; } 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; x = w->sx / 2; y = w->sy / 2; if (strcasecmp(s, "top") == 0) y = 0; else if (strcasecmp(s, "bottom") == 0) y = w->sy - 1; 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 = 0; } else if (strcasecmp(s, "top-right") == 0) { x = w->sx - 1; y = 0; } else if (strcasecmp(s, "bottom-left") == 0) { x = 0; y = w->sy - 1; } else if (strcasecmp(s, "bottom-right") == 0) { x = w->sx - 1; y = w->sy - 1; } 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_pane_visible(wp)) return (-1); if (window_count_panes(w) == 1) return (-1); if (w->active != wp) window_set_active_pane(w, wp); 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_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, w->sx, w->sy); notify_window_layout_changed(w); return (0); } struct window_pane * window_add_pane(struct window *w, u_int hlimit) { struct window_pane *wp; wp = window_pane_create(w, w->sx, w->sy, hlimit); if (TAILQ_EMPTY(&w->panes)) TAILQ_INSERT_HEAD(&w->panes, wp, entry); else TAILQ_INSERT_AFTER(&w->panes, w->active, wp, entry); return (wp); } void window_lost_pane(struct window *w, struct window_pane *wp) { 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; } 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); } } /* Retuns the printable flags on a window, empty string if no flags set. */ char * window_printable_flags(struct session *s, struct winlink *wl) { 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 (xstrdup(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)); } 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->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; wp->mode = NULL; wp->layout_cell = NULL; wp->xoff = 0; wp->yoff = 0; wp->sx = sx; wp->sy = sy; wp->pipe_fd = -1; wp->pipe_off = 0; wp->pipe_event = NULL; wp->saved_grid = NULL; memcpy(&wp->colgc, &grid_default_cell, sizeof wp->colgc); screen_init(&wp->base, sx, sy, hlimit); wp->screen = &wp->base; if (gethostname(host, sizeof host) == 0) screen_set_title(&wp->base, host); input_init(wp); return (wp); } void window_pane_destroy(struct window_pane *wp) { window_pane_reset_mode(wp); if (event_initialized(&wp->timer)) evtimer_del(&wp->timer); if (wp->fd != -1) { #ifdef HAVE_UTEMPTER utempter_remove_record(wp->fd); #endif bufferevent_free(wp->event); close(wp->fd); } input_free(wp); screen_free(&wp->base); if (wp->saved_grid != NULL) grid_destroy(wp->saved_grid); if (wp->pipe_fd != -1) { bufferevent_free(wp->pipe_event); close(wp->pipe_fd); } RB_REMOVE(window_pane_tree, &all_window_panes, wp); free((void *)wp->cwd); free(wp->shell); cmd_free_argv(wp->argc, wp->argv); free(wp); } int window_pane_spawn(struct window_pane *wp, int argc, char **argv, const char *path, const char *shell, const char *cwd, struct environ *env, struct termios *tio, char **cause) { struct winsize ws; char *argv0, *cmd, **argvp; const char *ptr, *first, *home; struct termios tio2; #ifdef HAVE_UTEMPTER char s[32]; #endif int i; if (wp->fd != -1) { bufferevent_free(wp->event); close(wp->fd); } if (argc > 0) { cmd_free_argv(wp->argc, wp->argv); wp->argc = argc; wp->argv = cmd_copy_argv(argc, argv); } if (shell != NULL) { free(wp->shell); wp->shell = xstrdup(shell); } if (cwd != NULL) { free((void *)wp->cwd); wp->cwd = xstrdup(cwd); } cmd = cmd_stringify_argv(wp->argc, wp->argv); log_debug("spawn: %s -- %s", wp->shell, cmd); for (i = 0; i < wp->argc; i++) log_debug("spawn: argv[%d] = %s", i, wp->argv[i]); memset(&ws, 0, sizeof ws); ws.ws_col = screen_size_x(&wp->base); ws.ws_row = screen_size_y(&wp->base); switch (wp->pid = forkpty(&wp->fd, wp->tty, NULL, &ws)) { case -1: wp->fd = -1; xasprintf(cause, "%s: %s", cmd, strerror(errno)); free(cmd); return (-1); case 0: if (chdir(wp->cwd) != 0) { if ((home = find_home()) == NULL || chdir(home) != 0) chdir("/"); } if (tcgetattr(STDIN_FILENO, &tio2) != 0) fatal("tcgetattr failed"); if (tio != NULL) memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc); tio2.c_cc[VERASE] = '\177'; #ifdef IUTF8 tio2.c_iflag |= IUTF8; #endif if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0) fatal("tcgetattr failed"); closefrom(STDERR_FILENO + 1); if (path != NULL) environ_set(env, "PATH", "%s", path); environ_set(env, "TMUX_PANE", "%%%u", wp->id); environ_push(env); clear_signals(1); log_close(); setenv("SHELL", wp->shell, 1); ptr = strrchr(wp->shell, '/'); /* * If given one argument, assume it should be passed to sh -c; * with more than one argument, use execvp(). If there is no * arguments, create a login shell. */ if (wp->argc > 0) { if (wp->argc != 1) { /* Copy to ensure argv ends in NULL. */ argvp = cmd_copy_argv(wp->argc, wp->argv); execvp(argvp[0], argvp); fatal("execvp failed"); } first = wp->argv[0]; if (ptr != NULL && *(ptr + 1) != '\0') xasprintf(&argv0, "%s", ptr + 1); else xasprintf(&argv0, "%s", wp->shell); execl(wp->shell, argv0, "-c", first, (char *)NULL); fatal("execl failed"); } if (ptr != NULL && *(ptr + 1) != '\0') xasprintf(&argv0, "-%s", ptr + 1); else xasprintf(&argv0, "-%s", wp->shell); execl(wp->shell, argv0, (char *)NULL); fatal("execl failed"); } #ifdef HAVE_UTEMPTER xsnprintf(s, sizeof s, "tmux(%lu).%%%u", (long) getpid(), wp->id); utempter_add_record(wp->fd, s); #endif setblocking(wp->fd, 0); wp->event = bufferevent_new(wp->fd, window_pane_read_callback, NULL, window_pane_error_callback, wp); bufferevent_setwatermark(wp->event, EV_READ, 0, READ_SIZE); bufferevent_enable(wp->event, EV_READ|EV_WRITE); free(cmd); return (0); } void window_pane_timer_callback(__unused int fd, __unused short events, void *data) { window_pane_read_callback(NULL, data); } void window_pane_read_callback(__unused struct bufferevent *bufev, void *data) { struct window_pane *wp = data; struct evbuffer *evb = wp->event->input; char *new_data; size_t new_size, available; struct client *c; struct timeval tv; if (event_initialized(&wp->timer)) evtimer_del(&wp->timer); log_debug("%%%u has %zu bytes", wp->id, EVBUFFER_LENGTH(evb)); TAILQ_FOREACH(c, &clients, entry) { if (!tty_client_ready(c, wp)) continue; available = EVBUFFER_LENGTH(c->tty.event->output); if (available > READ_BACKOFF) goto start_timer; } new_size = EVBUFFER_LENGTH(evb) - 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); } input_parse(wp); wp->pipe_off = EVBUFFER_LENGTH(evb); return; start_timer: log_debug("%%%u backing off (%s %zu > %d)", wp->id, c->ttyname, available, READ_BACKOFF); tv.tv_sec = 0; tv.tv_usec = READ_TIME; evtimer_set(&wp->timer, window_pane_timer_callback, wp); evtimer_add(&wp->timer, &tv); } void window_pane_error_callback(__unused struct bufferevent *bufev, __unused short what, void *data) { struct window_pane *wp = data; server_destroy_pane(wp, 1); } void window_pane_resize(struct window_pane *wp, u_int sx, u_int sy) { if (sx == wp->sx && sy == wp->sy) return; wp->sx = sx; wp->sy = sy; screen_resize(&wp->base, sx, sy, wp->saved_grid == NULL); if (wp->mode != NULL) wp->mode->resize(wp, sx, sy); wp->flags |= PANE_RESIZE; } /* * Enter alternative screen mode. A copy of the visible screen is saved and the * history is not updated */ void window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc, int cursor) { struct screen *s = &wp->base; u_int sx, sy; if (wp->saved_grid != NULL) return; if (!options_get_number(wp->window->options, "alternate-screen")) return; sx = screen_size_x(s); sy = screen_size_y(s); wp->saved_grid = grid_create(sx, sy, 0); grid_duplicate_lines(wp->saved_grid, 0, s->grid, screen_hsize(s), sy); if (cursor) { wp->saved_cx = s->cx; wp->saved_cy = s->cy; } memcpy(&wp->saved_cell, gc, sizeof wp->saved_cell); grid_view_clear(s->grid, 0, 0, sx, sy); wp->base.grid->flags &= ~GRID_HISTORY; wp->flags |= PANE_REDRAW; } /* Exit alternate screen mode and restore the copied grid. */ void window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc, int cursor) { struct screen *s = &wp->base; u_int sx, sy; if (wp->saved_grid == NULL) return; if (!options_get_number(wp->window->options, "alternate-screen")) return; sx = screen_size_x(s); sy = screen_size_y(s); /* * If the current size is bigger, temporarily resize to the old size * before copying back. */ if (sy > wp->saved_grid->sy) screen_resize(s, sx, wp->saved_grid->sy, 1); /* Restore the grid, cursor position and cell. */ grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy); if (cursor) s->cx = wp->saved_cx; if (s->cx > screen_size_x(s) - 1) s->cx = screen_size_x(s) - 1; if (cursor) s->cy = wp->saved_cy; if (s->cy > screen_size_y(s) - 1) s->cy = screen_size_y(s) - 1; memcpy(gc, &wp->saved_cell, sizeof *gc); /* * Turn history back on (so resize can use it) and then resize back to * the current size. */ wp->base.grid->flags |= GRID_HISTORY; if (sy > wp->saved_grid->sy || sx != wp->saved_grid->sx) screen_resize(s, sx, sy, 1); grid_destroy(wp->saved_grid); wp->saved_grid = NULL; wp->flags |= PANE_REDRAW; } int window_pane_set_mode(struct window_pane *wp, const struct window_mode *mode) { struct screen *s; if (wp->mode != NULL) return (1); wp->mode = mode; if ((s = wp->mode->init(wp)) != NULL) wp->screen = s; wp->flags |= (PANE_REDRAW|PANE_CHANGED); return (0); } void window_pane_reset_mode(struct window_pane *wp) { if (wp->mode == NULL) return; wp->mode->free(wp); wp->mode = NULL; wp->screen = &wp->base; wp->flags |= (PANE_REDRAW|PANE_CHANGED); } void window_pane_key(struct window_pane *wp, struct client *c, struct session *s, key_code key, struct mouse_event *m) { struct window_pane *wp2; if (KEYC_IS_MOUSE(key) && m == NULL) return; if (wp->mode != NULL) { if (wp->mode->key != NULL) wp->mode->key(wp, c, s, key, m); return; } if (wp->fd == -1 || wp->flags & PANE_INPUTOFF) return; input_key(wp, key, m); if (KEYC_IS_MOUSE(key)) return; if (options_get_number(wp->window->options, "synchronize-panes")) { TAILQ_FOREACH(wp2, &wp->window->panes, entry) { if (wp2 == wp || wp2->mode != NULL) continue; if (wp2->fd == -1 || wp2->flags & PANE_INPUTOFF) continue; if (window_pane_visible(wp2)) input_key(wp2, key, NULL); } } } int window_pane_visible(struct window_pane *wp) { struct window *w = wp->window; if (wp->layout_cell == NULL) return (0); if (wp->xoff >= w->sx || wp->yoff >= w->sy) return (0); if (wp->xoff + wp->sx > w->sx || wp->yoff + wp->sy > w->sy) return (0); return (1); } char * window_pane_search(struct window_pane *wp, const char *searchstr, u_int *lineno) { struct screen *s = &wp->base; char *newsearchstr, *line, *msg; u_int i; msg = NULL; xasprintf(&newsearchstr, "*%s*", searchstr); for (i = 0; i < screen_size_y(s); i++) { line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s)); if (fnmatch(newsearchstr, line, 0) == 0) { msg = line; if (lineno != NULL) *lineno = i; break; } free(line); } free(newsearchstr); return (msg); } /* Get MRU pane from a list. */ 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_pane *next, *best, **list; u_int edge, left, right, end, size; int found; if (wp == NULL || !window_pane_visible(wp)) return (NULL); list = NULL; size = 0; edge = wp->yoff; if (edge == 0) edge = wp->window->sy + 1; left = wp->xoff; right = wp->xoff + wp->sx; TAILQ_FOREACH(next, &wp->window->panes, entry) { if (next == wp || !window_pane_visible(next)) 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_pane *next, *best, **list; u_int edge, left, right, end, size; int found; if (wp == NULL || !window_pane_visible(wp)) return (NULL); list = NULL; size = 0; edge = wp->yoff + wp->sy + 1; if (edge >= wp->window->sy) edge = 0; left = wp->xoff; right = wp->xoff + wp->sx; TAILQ_FOREACH(next, &wp->window->panes, entry) { if (next == wp || !window_pane_visible(next)) 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_pane *next, *best, **list; u_int edge, top, bottom, end, size; int found; if (wp == NULL || !window_pane_visible(wp)) return (NULL); list = NULL; size = 0; edge = wp->xoff; if (edge == 0) edge = wp->window->sx + 1; top = wp->yoff; bottom = wp->yoff + wp->sy; TAILQ_FOREACH(next, &wp->window->panes, entry) { if (next == wp || !window_pane_visible(next)) 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_pane *next, *best, **list; u_int edge, top, bottom, end, size; int found; if (wp == NULL || !window_pane_visible(wp)) return (NULL); list = NULL; size = 0; edge = wp->xoff + wp->sx + 1; if (edge >= wp->window->sx) edge = 0; top = wp->yoff; bottom = wp->yoff + wp->sy; TAILQ_FOREACH(next, &wp->window->panes, entry) { if (next == wp || !window_pane_visible(next)) 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 session *s; struct winlink *wl_loop; RB_FOREACH(s, sessions, &sessions) { RB_FOREACH(wl_loop, winlinks, &s->windows) { if (wl_loop->window != wl->window) continue; if ((wl_loop->flags & WINLINK_ALERTFLAGS) == 0) continue; wl_loop->flags &= ~WINLINK_ALERTFLAGS; wl_loop->window->flags &= ~WINDOW_ALERTFLAGS; server_status_session(s); } } } int winlink_shuffle_up(struct session *s, struct winlink *wl) { int idx, last; 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); }