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Annotation of src/usr.bin/tmux/control-notify.c, Revision 1.7

1.7     ! nicm        1: /* $OpenBSD: control-notify.c,v 1.6 2013/03/25 11:40:40 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2012 Nicholas Marriott <nicm@users.sourceforge.net>
                      5:  * Copyright (c) 2012 George Nachman <tmux@georgester.com>
                      6:  *
                      7:  * Permission to use, copy, modify, and distribute this software for any
                      8:  * purpose with or without fee is hereby granted, provided that the above
                      9:  * copyright notice and this permission notice appear in all copies.
                     10:  *
                     11:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     12:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     13:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     14:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     15:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     16:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     17:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     18:  */
                     19:
                     20: #include <sys/types.h>
                     21:
                     22: #include "tmux.h"
                     23:
                     24: #define CONTROL_SHOULD_NOTIFY_CLIENT(c) \
                     25:        ((c) != NULL && ((c)->flags & CLIENT_CONTROL))
1.2       nicm       26:
                     27: void
                     28: control_notify_input(struct client *c, struct window_pane *wp,
                     29:     struct evbuffer *input)
                     30: {
                     31:        u_char          *buf;
                     32:        size_t           len;
                     33:        struct evbuffer *message;
                     34:        u_int            i;
                     35:
                     36:        if (c->session == NULL)
                     37:            return;
                     38:
                     39:        buf = EVBUFFER_DATA(input);
                     40:        len = EVBUFFER_LENGTH(input);
                     41:
                     42:        /*
                     43:         * Only write input if the window pane is linked to a window belonging
                     44:         * to the client's session.
                     45:         */
                     46:        if (winlink_find_by_window(&c->session->windows, wp->window) != NULL) {
                     47:                message = evbuffer_new();
1.7     ! nicm       48:                evbuffer_add_printf(message, "%%output %%%u ", wp->id);
1.6       nicm       49:                for (i = 0; i < len; i++) {
                     50:                        if (buf[i] < ' ' || buf[i] == '\\')
                     51:                            evbuffer_add_printf(message, "\\%03o", buf[i]);
                     52:                        else
                     53:                            evbuffer_add_printf(message, "%c", buf[i]);
                     54:                }
1.2       nicm       55:                control_write_buffer(c, message);
                     56:                evbuffer_free(message);
                     57:        }
                     58: }
1.1       nicm       59:
                     60: void
                     61: control_notify_window_layout_changed(struct window *w)
                     62: {
                     63:        struct client           *c;
                     64:        struct session          *s;
                     65:        struct format_tree      *ft;
                     66:        struct winlink          *wl;
                     67:        u_int                    i;
                     68:        const char              *template;
                     69:
                     70:        for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
                     71:                c = ARRAY_ITEM(&clients, i);
                     72:                if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
                     73:                        continue;
                     74:                s = c->session;
                     75:
                     76:                if (winlink_find_by_window_id(&s->windows, w->id) == NULL)
                     77:                        continue;
                     78:
                     79:                /*
                     80:                 * When the last pane in a window is closed it won't have a
                     81:                 * layout root and we don't need to inform the client about the
                     82:                 * layout change because the whole window will go away soon.
                     83:                 */
                     84:                if (w->layout_root == NULL)
                     85:                        continue;
                     86:                template = "%layout-change #{window_id} #{window_layout}";
                     87:
                     88:                ft = format_create();
                     89:                wl = winlink_find_by_window(&s->windows, w);
                     90:                if (wl != NULL) {
                     91:                        format_winlink(ft, c->session, wl);
                     92:                        control_write(c, "%s", format_expand(ft, template));
                     93:                }
                     94:                format_free(ft);
                     95:        }
                     96: }
                     97:
                     98: void
                     99: control_notify_window_unlinked(unused struct session *s, struct window *w)
                    100: {
                    101:        struct client   *c;
                    102:        struct session  *cs;
                    103:        u_int            i;
                    104:
                    105:        for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
                    106:                c = ARRAY_ITEM(&clients, i);
                    107:                if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
                    108:                        continue;
                    109:                cs = c->session;
                    110:
1.7     ! nicm      111:                control_write(c, "%%window-close @%u", w->id);
1.1       nicm      112:        }
                    113: }
                    114:
                    115: void
                    116: control_notify_window_linked(unused struct session *s, struct window *w)
                    117: {
                    118:        struct client   *c;
                    119:        struct session  *cs;
                    120:        u_int            i;
                    121:
                    122:        for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
                    123:                c = ARRAY_ITEM(&clients, i);
                    124:                if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
                    125:                        continue;
                    126:                cs = c->session;
                    127:
                    128:                if (winlink_find_by_window_id(&cs->windows, w->id) != NULL)
1.7     ! nicm      129:                        control_write(c, "%%window-add @%u", w->id);
1.1       nicm      130:                else
1.7     ! nicm      131:                        control_write(c, "%%unlinked-window-add @%u", w->id);
1.1       nicm      132:        }
                    133: }
                    134:
                    135: void
                    136: control_notify_window_renamed(struct window *w)
                    137: {
                    138:        struct client   *c;
                    139:        struct session  *s;
                    140:        u_int            i;
                    141:
                    142:        for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
                    143:                c = ARRAY_ITEM(&clients, i);
                    144:                if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
                    145:                        continue;
                    146:                s = c->session;
                    147:
1.7     ! nicm      148:                control_write(c, "%%window-renamed @%u %s", w->id, w->name);
1.1       nicm      149:        }
                    150: }
                    151:
                    152: void
                    153: control_notify_attached_session_changed(struct client *c)
                    154: {
                    155:        struct session  *s;
                    156:
                    157:        if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
                    158:                return;
                    159:        s = c->session;
                    160:
1.7     ! nicm      161:        control_write(c, "%%session-changed $%u %s", s->id, s->name);
1.1       nicm      162: }
                    163:
                    164: void
                    165: control_notify_session_renamed(struct session *s)
                    166: {
                    167:        struct client   *c;
                    168:        u_int            i;
                    169:
                    170:        for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
                    171:                c = ARRAY_ITEM(&clients, i);
1.7     ! nicm      172:                if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))
1.1       nicm      173:                        continue;
                    174:
1.7     ! nicm      175:                control_write(c, "%%session-renamed $%u %s", s->id, s->name);
1.1       nicm      176:        }
                    177: }
                    178:
                    179: void
                    180: control_notify_session_created(unused struct session *s)
                    181: {
                    182:        struct client   *c;
                    183:        u_int            i;
                    184:
                    185:        for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
                    186:                c = ARRAY_ITEM(&clients, i);
1.7     ! nicm      187:                if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))
1.1       nicm      188:                        continue;
                    189:
                    190:                control_write(c, "%%sessions-changed");
                    191:        }
                    192: }
                    193:
                    194: void
                    195: control_notify_session_close(unused struct session *s)
                    196: {
                    197:        struct client   *c;
                    198:        u_int            i;
                    199:
                    200:        for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
                    201:                c = ARRAY_ITEM(&clients, i);
1.7     ! nicm      202:                if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))
1.1       nicm      203:                        continue;
                    204:
                    205:                control_write(c, "%%sessions-changed");
                    206:        }
                    207: }