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Annotation of src/usr.bin/tmux/cmd-confirm-before.c, Revision 1.11

1.11    ! nicm        1: /* $OpenBSD: cmd-confirm-before.c,v 1.10 2011/01/04 00:42:46 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
                      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 <ctype.h>
                     20: #include <string.h>
                     21:
                     22: #include "tmux.h"
                     23:
                     24: /*
                     25:  * Asks for confirmation before executing a command.
                     26:  */
                     27:
1.10      nicm       28: void   cmd_confirm_before_key_binding(struct cmd *, int);
1.1       nicm       29: int    cmd_confirm_before_exec(struct cmd *, struct cmd_ctx *);
                     30:
                     31: int    cmd_confirm_before_callback(void *, const char *);
1.4       nicm       32: void   cmd_confirm_before_free(void *);
1.1       nicm       33:
                     34: const struct cmd_entry cmd_confirm_before_entry = {
                     35:        "confirm-before", "confirm",
1.10      nicm       36:        "t:", 1, 1,
1.1       nicm       37:        CMD_TARGET_CLIENT_USAGE " command",
1.10      nicm       38:        0,
                     39:        cmd_confirm_before_key_binding,
                     40:        NULL,
                     41:        cmd_confirm_before_exec
1.1       nicm       42: };
                     43:
1.4       nicm       44: struct cmd_confirm_before_data {
                     45:        struct client   *c;
                     46:        char            *cmd;
                     47: };
                     48:
1.1       nicm       49: void
1.10      nicm       50: cmd_confirm_before_key_binding(struct cmd *self, int key)
1.1       nicm       51: {
                     52:        switch (key) {
                     53:        case '&':
1.10      nicm       54:                self->args = args_create(1, "kill-window");
1.1       nicm       55:                break;
                     56:        case 'x':
1.10      nicm       57:                self->args = args_create(1, "kill-pane");
                     58:                break;
                     59:        default:
                     60:                self->args = args_create(0);
1.1       nicm       61:                break;
                     62:        }
                     63: }
                     64:
                     65: int
1.5       nicm       66: cmd_confirm_before_exec(struct cmd *self, struct cmd_ctx *ctx)
1.1       nicm       67: {
1.10      nicm       68:        struct args                     *args = self->args;
1.1       nicm       69:        struct cmd_confirm_before_data  *cdata;
                     70:        struct client                   *c;
                     71:        char                            *buf, *cmd, *ptr;
                     72:
                     73:        if (ctx->curclient == NULL) {
                     74:                ctx->error(ctx, "must be run interactively");
                     75:                return (-1);
                     76:        }
                     77:
1.10      nicm       78:        if ((c = cmd_find_client(ctx, args_get(args, 't'))) == NULL)
1.1       nicm       79:                return (-1);
                     80:
1.10      nicm       81:        ptr = xstrdup(args->argv[0]);
1.1       nicm       82:        if ((cmd = strtok(ptr, " \t")) == NULL)
                     83:                cmd = ptr;
                     84:        xasprintf(&buf, "Confirm '%s'? (y/n) ", cmd);
                     85:        xfree(ptr);
                     86:
                     87:        cdata = xmalloc(sizeof *cdata);
1.10      nicm       88:        cdata->cmd = xstrdup(args->argv[0]);
1.1       nicm       89:        cdata->c = c;
1.11    ! nicm       90:        status_prompt_set(cdata->c, buf, NULL, cmd_confirm_before_callback,
        !            91:            cmd_confirm_before_free, cdata, PROMPT_SINGLE);
1.1       nicm       92:
                     93:        xfree(buf);
                     94:        return (1);
                     95: }
                     96:
                     97: int
                     98: cmd_confirm_before_callback(void *data, const char *s)
                     99: {
                    100:        struct cmd_confirm_before_data  *cdata = data;
                    101:        struct client                   *c = cdata->c;
                    102:        struct cmd_list                 *cmdlist;
                    103:        struct cmd_ctx                   ctx;
                    104:        char                            *cause;
                    105:
1.7       nicm      106:        if (s == NULL || *s == '\0')
                    107:                return (0);
                    108:        if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
1.4       nicm      109:                return (0);
1.1       nicm      110:
                    111:        if (cmd_string_parse(cdata->cmd, &cmdlist, &cause) != 0) {
                    112:                if (cause != NULL) {
                    113:                        *cause = toupper((u_char) *cause);
1.3       nicm      114:                        status_message_set(c, "%s", cause);
1.1       nicm      115:                        xfree(cause);
                    116:                }
1.4       nicm      117:                return (0);
1.1       nicm      118:        }
                    119:
                    120:        ctx.msgdata = NULL;
                    121:        ctx.curclient = c;
                    122:
                    123:        ctx.error = key_bindings_error;
                    124:        ctx.print = key_bindings_print;
                    125:        ctx.info = key_bindings_info;
                    126:
                    127:        ctx.cmdclient = NULL;
                    128:
                    129:        cmd_list_exec(cmdlist, &ctx);
                    130:        cmd_list_free(cmdlist);
                    131:
1.4       nicm      132:        return (0);
                    133: }
                    134:
                    135: void
                    136: cmd_confirm_before_free(void *data)
                    137: {
                    138:        struct cmd_confirm_before_data  *cdata = data;
                    139:
1.1       nicm      140:        if (cdata->cmd != NULL)
                    141:                xfree(cdata->cmd);
                    142:        xfree(cdata);
                    143: }