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commands and allow a command to block execution of subsequent commands. This allows run-shell and if-shell to be synchronous which has been much requested. Each client has a default command queue and commands are consumed one at a time from it. A command may suspend execution from the queue by returning CMD_RETURN_WAIT and then resume it by calling cmd_continue() - for example run-shell does this from the callback that is fired after the job is freed. When the command queue becomes empty, command clients are automatically exited (unless attaching). A callback is also fired - this is used for nested commands in, for example, if-shell which can block execution of the client's cmdq until a new cmdq becomes empty. Also merge all the old error/info/print functions together and lose the old curclient/cmdclient distinction - a cmdq is bound to one client (or none if in the configuration file), this is a command client if c->session is NULL otherwise an attached client.
144 lines
3.4 KiB
C
144 lines
3.4 KiB
C
/* $Id$ */
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/*
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* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <ctype.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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/*
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* Asks for confirmation before executing a command.
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*/
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void cmd_confirm_before_key_binding(struct cmd *, int);
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enum cmd_retval cmd_confirm_before_exec(struct cmd *, struct cmd_q *);
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int cmd_confirm_before_callback(void *, const char *);
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void cmd_confirm_before_free(void *);
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const struct cmd_entry cmd_confirm_before_entry = {
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"confirm-before", "confirm",
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"p:t:", 1, 1,
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"[-p prompt] " CMD_TARGET_CLIENT_USAGE " command",
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0,
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cmd_confirm_before_key_binding,
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NULL,
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cmd_confirm_before_exec
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};
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struct cmd_confirm_before_data {
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char *cmd;
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struct client *client;
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};
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void
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cmd_confirm_before_key_binding(struct cmd *self, int key)
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{
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switch (key) {
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case '&':
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self->args = args_create(1, "kill-window");
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args_set(self->args, 'p', "kill-window #W? (y/n)");
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break;
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case 'x':
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self->args = args_create(1, "kill-pane");
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args_set(self->args, 'p', "kill-pane #P? (y/n)");
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break;
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default:
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self->args = args_create(0);
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break;
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}
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}
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enum cmd_retval
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cmd_confirm_before_exec(struct cmd *self, struct cmd_q *cmdq)
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{
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struct args *args = self->args;
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struct cmd_confirm_before_data *cdata;
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struct client *c;
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char *cmd, *copy, *new_prompt, *ptr;
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const char *prompt;
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if ((c = cmd_find_client(cmdq, args_get(args, 't'), 0)) == NULL)
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return (CMD_RETURN_ERROR);
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if ((prompt = args_get(args, 'p')) != NULL)
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xasprintf(&new_prompt, "%s ", prompt);
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else {
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ptr = copy = xstrdup(args->argv[0]);
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cmd = strsep(&ptr, " \t");
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xasprintf(&new_prompt, "Confirm '%s'? (y/n) ", cmd);
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free(copy);
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}
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cdata = xmalloc(sizeof *cdata);
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cdata->cmd = xstrdup(args->argv[0]);
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cdata->client = c;
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cdata->client->references++;
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status_prompt_set(c, new_prompt, NULL,
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cmd_confirm_before_callback, cmd_confirm_before_free, cdata,
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PROMPT_SINGLE);
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free(new_prompt);
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return (CMD_RETURN_NORMAL);
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}
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int
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cmd_confirm_before_callback(void *data, const char *s)
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{
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struct cmd_confirm_before_data *cdata = data;
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struct client *c = cdata->client;
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struct cmd_list *cmdlist;
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char *cause;
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if (c->flags & CLIENT_DEAD)
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return (0);
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if (s == NULL || *s == '\0')
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return (0);
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if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
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return (0);
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if (cmd_string_parse(cdata->cmd, &cmdlist, NULL, 0, &cause) != 0) {
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if (cause != NULL) {
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cmdq_error(c->cmdq, "%s", cause);
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free(cause);
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}
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return (0);
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}
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cmdq_run(c->cmdq, cmdlist);
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cmd_list_free(cmdlist);
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return (0);
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}
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void
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cmd_confirm_before_free(void *data)
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{
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struct cmd_confirm_before_data *cdata = data;
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struct client *c = cdata->client;
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c->references--;
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free(cdata->cmd);
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free(cdata);
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}
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