cmd-confirm-before.c revision 1.9 
1/* $OpenBSD: cmd-confirm-before.c,v 1.9 2009/11/13 19:53:29 nicm Exp $ */
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
28int	cmd_confirm_before_exec(struct cmd *, struct cmd_ctx *);
29void	cmd_confirm_before_init(struct cmd *, int);
30
31int	cmd_confirm_before_callback(void *, const char *);
32void	cmd_confirm_before_free(void *);
33
34const struct cmd_entry cmd_confirm_before_entry = {
35	"confirm-before", "confirm",
36	CMD_TARGET_CLIENT_USAGE " command",
37	CMD_ARG1, "",
38	cmd_confirm_before_init,
39	cmd_target_parse,
40	cmd_confirm_before_exec,
41	cmd_target_free,
42	cmd_target_print
43};
44
45struct cmd_confirm_before_data {
46	struct client	*c;
47	char		*cmd;
48};
49
50void
51cmd_confirm_before_init(struct cmd *self, int key)
52{
53	struct cmd_target_data	*data;
54
55	cmd_target_init(self, key);
56	data = self->data;
57
58	switch (key) {
59	case '&':
60		data->arg = xstrdup("kill-window");
61		break;
62	case 'x':
63		data->arg = xstrdup("kill-pane");
64		break;
65	}
66}
67
68int
69cmd_confirm_before_exec(struct cmd *self, struct cmd_ctx *ctx)
70{
71	struct cmd_target_data		*data = self->data;
72	struct cmd_confirm_before_data	*cdata;
73	struct client			*c;
74	char				*buf, *cmd, *ptr;
75
76	if (ctx->curclient == NULL) {
77		ctx->error(ctx, "must be run interactively");
78		return (-1);
79	}
80
81	if ((c = cmd_find_client(ctx, data->target)) == NULL)
82		return (-1);
83
84	ptr = xstrdup(data->arg);
85	if ((cmd = strtok(ptr, " \t")) == NULL)
86		cmd = ptr;
87	xasprintf(&buf, "Confirm '%s'? (y/n) ", cmd);
88	xfree(ptr);
89
90	cdata = xmalloc(sizeof *cdata);
91	cdata->cmd = xstrdup(data->arg);
92	cdata->c = c;
93	status_prompt_set(cdata->c, buf,
94	    cmd_confirm_before_callback, cmd_confirm_before_free, cdata,
95	    PROMPT_SINGLE);
96
97	xfree(buf);
98	return (1);
99}
100
101int
102cmd_confirm_before_callback(void *data, const char *s)
103{
104	struct cmd_confirm_before_data	*cdata = data;
105	struct client			*c = cdata->c;
106	struct cmd_list			*cmdlist;
107	struct cmd_ctx	 	 	 ctx;
108	char				*cause;
109
110	if (s == NULL || *s == '\0')
111		return (0);
112	if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
113		return (0);
114
115	if (cmd_string_parse(cdata->cmd, &cmdlist, &cause) != 0) {
116		if (cause != NULL) {
117			*cause = toupper((u_char) *cause);
118			status_message_set(c, "%s", cause);
119			xfree(cause);
120		}
121		return (0);
122	}
123
124	ctx.msgdata = NULL;
125	ctx.curclient = c;
126
127	ctx.error = key_bindings_error;
128	ctx.print = key_bindings_print;
129	ctx.info = key_bindings_info;
130
131	ctx.cmdclient = NULL;
132
133	cmd_list_exec(cmdlist, &ctx);
134	cmd_list_free(cmdlist);
135
136	return (0);
137}
138
139void
140cmd_confirm_before_free(void *data)
141{
142	struct cmd_confirm_before_data	*cdata = data;
143
144	if (cdata->cmd != NULL)
145		xfree(cdata->cmd);
146	xfree(cdata);
147}
148