Annotation of embedaddon/tmux/cmd-new-window.c, revision 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 <errno.h>
        !            22: #include <fcntl.h>
        !            23: #include <stdlib.h>
        !            24: #include <string.h>
        !            25: #include <unistd.h>
        !            26: 
        !            27: #include "tmux.h"
        !            28: 
        !            29: /*
        !            30:  * Create a new window.
        !            31:  */
        !            32: 
        !            33: #define NEW_WINDOW_TEMPLATE "#{session_name}:#{window_index}.#{pane_index}"
        !            34: 
        !            35: static enum cmd_retval cmd_new_window_exec(struct cmd *, struct cmdq_item *);
        !            36: 
        !            37: const struct cmd_entry cmd_new_window_entry = {
        !            38:        .name = "new-window",
        !            39:        .alias = "neww",
        !            40: 
        !            41:        .args = { "ac:dF:kn:Pt:", 0, -1 },
        !            42:        .usage = "[-adkP] [-c start-directory] [-F format] [-n window-name] "
        !            43:                 CMD_TARGET_WINDOW_USAGE " [command]",
        !            44: 
        !            45:        .tflag = CMD_WINDOW_INDEX,
        !            46: 
        !            47:        .flags = 0,
        !            48:        .exec = cmd_new_window_exec
        !            49: };
        !            50: 
        !            51: static enum cmd_retval
        !            52: cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)
        !            53: {
        !            54:        struct args             *args = self->args;
        !            55:        struct session          *s = item->state.tflag.s;
        !            56:        struct winlink          *wl = item->state.tflag.wl;
        !            57:        struct client           *c = item->state.c;
        !            58:        int                      idx = item->state.tflag.idx;
        !            59:        const char              *cmd, *path, *template, *cwd, *to_free;
        !            60:        char                   **argv, *cause, *cp;
        !            61:        int                      argc, detached;
        !            62:        struct environ_entry    *envent;
        !            63:        struct cmd_find_state    fs;
        !            64: 
        !            65:        if (args_has(args, 'a')) {
        !            66:                if ((idx = winlink_shuffle_up(s, wl)) == -1) {
        !            67:                        cmdq_error(item, "no free window indexes");
        !            68:                        return (CMD_RETURN_ERROR);
        !            69:                }
        !            70:        }
        !            71:        detached = args_has(args, 'd');
        !            72: 
        !            73:        if (args->argc == 0) {
        !            74:                cmd = options_get_string(s->options, "default-command");
        !            75:                if (cmd != NULL && *cmd != '\0') {
        !            76:                        argc = 1;
        !            77:                        argv = (char **)&cmd;
        !            78:                } else {
        !            79:                        argc = 0;
        !            80:                        argv = NULL;
        !            81:                }
        !            82:        } else {
        !            83:                argc = args->argc;
        !            84:                argv = args->argv;
        !            85:        }
        !            86: 
        !            87:        path = NULL;
        !            88:        if (item->client != NULL && item->client->session == NULL)
        !            89:                envent = environ_find(item->client->environ, "PATH");
        !            90:        else
        !            91:                envent = environ_find(s->environ, "PATH");
        !            92:        if (envent != NULL)
        !            93:                path = envent->value;
        !            94: 
        !            95:        to_free = NULL;
        !            96:        if (args_has(args, 'c')) {
        !            97:                cwd = args_get(args, 'c');
        !            98:                to_free = cwd = format_single(item, cwd, c, s, NULL, NULL);
        !            99:        } else if (item->client != NULL && item->client->session == NULL)
        !           100:                cwd = item->client->cwd;
        !           101:        else
        !           102:                cwd = s->cwd;
        !           103: 
        !           104:        wl = NULL;
        !           105:        if (idx != -1)
        !           106:                wl = winlink_find_by_index(&s->windows, idx);
        !           107:        if (wl != NULL && args_has(args, 'k')) {
        !           108:                /*
        !           109:                 * Can't use session_detach as it will destroy session if this
        !           110:                 * makes it empty.
        !           111:                 */
        !           112:                notify_session_window("window-unlinked", s, wl->window);
        !           113:                wl->flags &= ~WINLINK_ALERTFLAGS;
        !           114:                winlink_stack_remove(&s->lastw, wl);
        !           115:                winlink_remove(&s->windows, wl);
        !           116: 
        !           117:                /* Force select/redraw if current. */
        !           118:                if (wl == s->curw) {
        !           119:                        detached = 0;
        !           120:                        s->curw = NULL;
        !           121:                }
        !           122:        }
        !           123: 
        !           124:        if (idx == -1)
        !           125:                idx = -1 - options_get_number(s->options, "base-index");
        !           126:        wl = session_new(s, args_get(args, 'n'), argc, argv, path, cwd, idx,
        !           127:                &cause);
        !           128:        if (wl == NULL) {
        !           129:                cmdq_error(item, "create window failed: %s", cause);
        !           130:                free(cause);
        !           131:                goto error;
        !           132:        }
        !           133:        if (!detached) {
        !           134:                session_select(s, wl->idx);
        !           135:                server_redraw_session_group(s);
        !           136:        } else
        !           137:                server_status_session_group(s);
        !           138: 
        !           139:        if (args_has(args, 'P')) {
        !           140:                if ((template = args_get(args, 'F')) == NULL)
        !           141:                        template = NEW_WINDOW_TEMPLATE;
        !           142:                cp = format_single(item, template, c, s, wl, NULL);
        !           143:                cmdq_print(item, "%s", cp);
        !           144:                free(cp);
        !           145:        }
        !           146: 
        !           147:        if (to_free != NULL)
        !           148:                free((void *)to_free);
        !           149: 
        !           150:        cmd_find_from_winlink(&fs, s, wl);
        !           151:        hooks_insert(s->hooks, item, &fs, "after-new-window");
        !           152: 
        !           153:        return (CMD_RETURN_NORMAL);
        !           154: 
        !           155: error:
        !           156:        if (to_free != NULL)
        !           157:                free((void *)to_free);
        !           158:        return (CMD_RETURN_ERROR);
        !           159: }

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