cmd-command-prompt.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
   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 <ctype.h>
  22 #include <string.h>
  23
  24 #include "tmux.h"
  25
  26 /*
  27  * Prompt for command in client.
  28  */
  29
  30 void    cmd_command_prompt_key_binding(struct cmd *, int);
  31 int     cmd_command_prompt_check(struct args *);
  32 int     cmd_command_prompt_exec(struct cmd *, struct cmd_ctx *);
  33
  34 int     cmd_command_prompt_callback(void *, const char *);
  35 void    cmd_command_prompt_free(void *);
  36
  37 const struct cmd_entry cmd_command_prompt_entry = {
  38         "command-prompt", NULL,
  39         "p:t:", 0, 1,
  40         CMD_TARGET_CLIENT_USAGE " [-p prompts] [template]",
  41         0,
  42         cmd_command_prompt_key_binding,
  43         NULL,
  44         cmd_command_prompt_exec
  45 };
  46
  47 struct cmd_command_prompt_cdata {
  48         struct client   *c;
  49         char            *next_prompt;
  50         char            *prompts;
  51         char            *template;
  52         int              idx;
  53 };
  54
  55 void
  56 cmd_command_prompt_key_binding(struct cmd *self, int key)
  57 {
  58         switch (key) {
  59         case ',':
  60                 self->args = args_create(1, "rename-window '%%'");
  61                 break;
  62         case '.':
  63                 self->args = args_create(1, "move-window -t '%%'");
  64                 break;
  65         case 'f':
  66                 self->args = args_create(1, "find-window '%%'");
  67                 break;
  68         case '\'':
  69                 self->args = args_create(1, "select-window -t ':%%'");
  70                 args_set(self->args, 'p', "index");
  71                 break;
  72         default:
  73                 self->args = args_create(0);
  74                 break;
  75         }
  76 }
  77
  78 int
  79 cmd_command_prompt_exec(struct cmd *self, struct cmd_ctx *ctx)
  80 {
  81         struct args                     *args = self->args;
  82         const char                      *prompts;
  83         struct cmd_command_prompt_cdata *cdata;
  84         struct client                   *c;
  85         char                            *prompt, *ptr;
  86         size_t                           n;
  87
  88         if ((c = cmd_find_client(ctx, args_get(args, 't'))) == NULL)
  89                 return (-1);
  90
  91         if (c->prompt_string != NULL)
  92                 return (0);
  93
  94         cdata = xmalloc(sizeof *cdata);
  95         cdata->c = c;
  96         cdata->idx = 1;
  97         cdata->next_prompt = NULL;
  98         cdata->prompts = NULL;
  99         cdata->template = NULL;
 100
 101         if (args->argc != 0)
 102                 cdata->template = xstrdup(args->argv[0]);
 103         else
 104                 cdata->template = xstrdup("%1");
 105
 106         prompts = args_get(args, 'p');
 107         if (prompts != NULL)
 108                 cdata->prompts = xstrdup(prompts);
 109         else if (args->argc != 0) {
 110                 n = strcspn(cdata->template, " ,");
 111                 xasprintf(&cdata->prompts, "(%.*s) ", (int) n, cdata->template);
 112         } else
 113                 cdata->prompts = xstrdup(":");
 114
 115         cdata->next_prompt = cdata->prompts;
 116         ptr = strsep(&cdata->next_prompt, ",");
 117         if (prompts == NULL)
 118                 prompt = xstrdup(ptr);
 119         else
 120                 xasprintf(&prompt, "%s ", ptr);
 121         status_prompt_set(c, prompt, cmd_command_prompt_callback,
 122             cmd_command_prompt_free, cdata, 0);
 123         xfree(prompt);
 124
 125         return (0);
 126 }
 127
 128 int
 129 cmd_command_prompt_callback(void *data, const char *s)
 130 {
 131         struct cmd_command_prompt_cdata *cdata = data;
 132         struct client                   *c = cdata->c;
 133         struct cmd_list                 *cmdlist;
 134         struct cmd_ctx                   ctx;
 135         char                            *cause, *newtempl, *prompt, *ptr;
 136
 137         if (s == NULL)
 138                 return (0);
 139
 140         newtempl = cmd_template_replace(cdata->template, s, cdata->idx);
 141         xfree(cdata->template);
 142         cdata->template = newtempl;
 143
 144         if ((ptr = strsep(&cdata->next_prompt, ",")) != NULL) {
 145                 xasprintf(&prompt, "%s ", ptr);
 146                 status_prompt_update(c, prompt);
 147                 xfree(prompt);
 148                 cdata->idx++;
 149                 return (1);
 150         }
 151
 152         if (cmd_string_parse(newtempl, &cmdlist, &cause) != 0) {
 153                 if (cause != NULL) {
 154                         *cause = toupper((u_char) *cause);
 155                         status_message_set(c, "%s", cause);
 156                         xfree(cause);
 157                 }
 158                 return (0);
 159         }
 160
 161         ctx.msgdata = NULL;
 162         ctx.curclient = c;
 163
 164         ctx.error = key_bindings_error;
 165         ctx.print = key_bindings_print;
 166         ctx.info = key_bindings_info;
 167
 168         ctx.cmdclient = NULL;
 169
 170         cmd_list_exec(cmdlist, &ctx);
 171         cmd_list_free(cmdlist);
 172
 173         if (c->prompt_callbackfn != (void *) &cmd_command_prompt_callback)
 174                 return (1);
 175         return (0);
 176 }
 177
 178 void
 179 cmd_command_prompt_free(void *data)
 180 {
 181         struct cmd_command_prompt_cdata *cdata = data;
 182
 183         if (cdata->prompts != NULL)
 184                 xfree(cdata->prompts);
 185         if (cdata->template != NULL)
 186                 xfree(cdata->template);
 187         xfree(cdata);
 188 }