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Annotation of embedaddon/tmux/cmd-switch-client.c, revision 1.1.1.1

1.1       misho       1: /* $OpenBSD$ */
                      2: 
                      3: /*
                      4:  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
                      5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18: 
                     19: #include <sys/types.h>
                     20: 
                     21: #include <stdlib.h>
                     22: #include <string.h>
                     23: 
                     24: #include "tmux.h"
                     25: 
                     26: /*
                     27:  * Switch client to a different session.
                     28:  */
                     29: 
                     30: static enum cmd_retval cmd_switch_client_exec(struct cmd *,
                     31:                            struct cmdq_item *);
                     32: 
                     33: const struct cmd_entry cmd_switch_client_entry = {
                     34:        .name = "switch-client",
                     35:        .alias = "switchc",
                     36: 
                     37:        .args = { "lc:Enpt:rT:", 0, 0 },
                     38:        .usage = "[-Elnpr] [-c target-client] [-t target-session] "
                     39:                 "[-T key-table]",
                     40: 
                     41:        .cflag = CMD_CLIENT,
                     42:        .tflag = CMD_SESSION_WITHPANE,
                     43: 
                     44:        .flags = CMD_READONLY,
                     45:        .exec = cmd_switch_client_exec
                     46: };
                     47: 
                     48: static enum cmd_retval
                     49: cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
                     50: {
                     51:        struct args             *args = self->args;
                     52:        struct cmd_state        *state = &item->state;
                     53:        struct client           *c = state->c;
                     54:        struct session          *s = item->state.tflag.s;
                     55:        struct window_pane      *wp;
                     56:        const char              *tablename;
                     57:        struct key_table        *table;
                     58: 
                     59:        if (args_has(args, 'r'))
                     60:                c->flags ^= CLIENT_READONLY;
                     61: 
                     62:        tablename = args_get(args, 'T');
                     63:        if (tablename != NULL) {
                     64:                table = key_bindings_get_table(tablename, 0);
                     65:                if (table == NULL) {
                     66:                        cmdq_error(item, "table %s doesn't exist", tablename);
                     67:                        return (CMD_RETURN_ERROR);
                     68:                }
                     69:                table->references++;
                     70:                key_bindings_unref_table(c->keytable);
                     71:                c->keytable = table;
                     72:                return (CMD_RETURN_NORMAL);
                     73:        }
                     74: 
                     75:        if (args_has(args, 'n')) {
                     76:                if ((s = session_next_session(c->session)) == NULL) {
                     77:                        cmdq_error(item, "can't find next session");
                     78:                        return (CMD_RETURN_ERROR);
                     79:                }
                     80:        } else if (args_has(args, 'p')) {
                     81:                if ((s = session_previous_session(c->session)) == NULL) {
                     82:                        cmdq_error(item, "can't find previous session");
                     83:                        return (CMD_RETURN_ERROR);
                     84:                }
                     85:        } else if (args_has(args, 'l')) {
                     86:                if (c->last_session != NULL && session_alive(c->last_session))
                     87:                        s = c->last_session;
                     88:                else
                     89:                        s = NULL;
                     90:                if (s == NULL) {
                     91:                        cmdq_error(item, "can't find last session");
                     92:                        return (CMD_RETURN_ERROR);
                     93:                }
                     94:        } else {
                     95:                if (item->client == NULL)
                     96:                        return (CMD_RETURN_NORMAL);
                     97:                if (state->tflag.wl != NULL) {
                     98:                        wp = state->tflag.wp;
                     99:                        if (wp != NULL)
                    100:                                window_set_active_pane(wp->window, wp);
                    101:                        session_set_current(s, state->tflag.wl);
                    102:                }
                    103:        }
                    104: 
                    105:        if (!args_has(args, 'E'))
                    106:                environ_update(s->options, c->environ, s->environ);
                    107: 
                    108:        if (c->session != NULL && c->session != s)
                    109:                c->last_session = c->session;
                    110:        c->session = s;
                    111:        if (!item->repeat)
                    112:                server_client_set_key_table(c, NULL);
                    113:        status_timer_start(c);
                    114:        session_update_activity(s, NULL);
                    115:        gettimeofday(&s->last_attached_time, NULL);
                    116: 
                    117:        recalculate_sizes();
                    118:        server_check_unattached();
                    119:        server_redraw_client(c);
                    120:        s->curw->flags &= ~WINLINK_ALERTFLAGS;
                    121:        alerts_check_session(s);
                    122: 
                    123:        return (CMD_RETURN_NORMAL);
                    124: }