tmux/cmd-confirm-before.c

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/* $Id: cmd-confirm-before.c,v 1.1 2009-04-27 13:21:15 tcunha Exp $ */
/*
* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <ctype.h>
#include <string.h>
#include "tmux.h"
/*
* Asks for confirmation before executing a command.
*/
int cmd_confirm_before_parse(struct cmd *, int, char **, char **);
int cmd_confirm_before_exec(struct cmd *, struct cmd_ctx *);
void cmd_confirm_before_send(struct cmd *, struct buffer *);
void cmd_confirm_before_recv(struct cmd *, struct buffer *);
void cmd_confirm_before_free(struct cmd *);
void cmd_confirm_before_init(struct cmd *, int);
size_t cmd_confirm_before_print(struct cmd *, char *, size_t);
int cmd_confirm_before_callback(void *, const char *);
struct cmd_confirm_before_data {
char *cmd;
};
struct cmd_confirm_before_cdata {
struct client *c;
struct cmd_confirm_before_data data;
};
const struct cmd_entry cmd_confirm_before_entry = {
"confirm-before", "confirm",
"command",
0,
cmd_confirm_before_init,
cmd_confirm_before_parse,
cmd_confirm_before_exec,
cmd_confirm_before_send,
cmd_confirm_before_recv,
cmd_confirm_before_free,
cmd_confirm_before_print
};
void
cmd_confirm_before_init(struct cmd *self, int key)
{
struct cmd_confirm_before_data *data;
self->data = data = xmalloc(sizeof *data);
data->cmd = NULL;
switch (key) {
case '&':
data->cmd = xstrdup("kill-window");
break;
case 'x':
data->cmd = xstrdup("kill-pane");
break;
}
}
int
cmd_confirm_before_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_confirm_before_data *data;
int opt;
self->entry->init(self, 0);
data = self->data;
while ((opt = getopt(argc, argv, "")) != -1) {
switch (opt) {
default:
goto usage;
}
}
argc -= optind;
argv += optind;
if (argc != 1)
goto usage;
data->cmd = xstrdup(argv[0]);
return (0);
usage:
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
self->entry->free(self);
return (-1);
}
int
cmd_confirm_before_exec(unused struct cmd *self, struct cmd_ctx *ctx)
{
struct cmd_confirm_before_cdata *cdata;
struct cmd_confirm_before_data *data = self->data;
char *buf, *cmd, *ptr;
if (ctx->curclient == NULL) {
ctx->error(ctx, "must be run interactively");
return (-1);
}
ptr = xstrdup(data->cmd);
if ((cmd = strtok(ptr, " \t")) == NULL)
cmd = ptr;
xasprintf(&buf, "Confirm '%s'? (y/n) ", cmd);
xfree(ptr);
cdata = xmalloc(sizeof *cdata);
cdata->data.cmd = xstrdup(data->cmd);
cdata->c = ctx->curclient;
status_prompt_set(cdata->c, buf, cmd_confirm_before_callback, cdata, 0);
xfree(buf);
return (1);
}
void
cmd_confirm_before_send(struct cmd *self, struct buffer *b)
{
struct cmd_confirm_before_data *data = self->data;
buffer_write(b, data, sizeof *data);
cmd_send_string(b, data->cmd);
}
void
cmd_confirm_before_recv(struct cmd *self, struct buffer *b)
{
struct cmd_confirm_before_data *data;
self->data = data = xmalloc(sizeof *data);
buffer_read(b, data, sizeof *data);
data->cmd = cmd_recv_string(b);
}
void
cmd_confirm_before_free(struct cmd *self)
{
struct cmd_confirm_before_data *data = self->data;
if (data->cmd != NULL)
xfree(data->cmd);
xfree(data);
}
size_t
cmd_confirm_before_print(struct cmd *self, char *buf, size_t len)
{
struct cmd_confirm_before_data *data = self->data;
size_t off = 0;
off += xsnprintf(buf, len, "%s ", self->entry->name);
if (data == NULL)
return (off);
if (off < len && data->cmd != NULL)
off += xsnprintf(buf + off, len - off, "%s", data->cmd);
return (off);
}
int
cmd_confirm_before_callback(void *data, const char *s)
{
struct cmd_confirm_before_cdata *cdata = data;
struct client *c = cdata->c;
struct cmd_list *cmdlist;
struct cmd_ctx ctx;
char *cause;
if (s == NULL || (strcasecmp(s, "y") && strcasecmp(s, "yes")))
goto out;
if (cmd_string_parse(cdata->data.cmd, &cmdlist, &cause) != 0) {
if (cause != NULL) {
*cause = toupper((u_char) *cause);
status_message_set(c, cause);
xfree(cause);
}
goto out;
}
ctx.msgdata = NULL;
ctx.cursession = c->session;
ctx.curclient = c;
ctx.error = key_bindings_error;
ctx.print = key_bindings_print;
ctx.info = key_bindings_info;
ctx.cmdclient = NULL;
cmd_list_exec(cmdlist, &ctx);
cmd_list_free(cmdlist);
out:
if (cdata->data.cmd != NULL)
xfree(cdata->data.cmd);
xfree(cdata);
return (0);
}