cmd-choose-buffer.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2010 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
  23 #include "tmux.h"
  24
  25 /*
  26  * Enter choice mode to choose a buffer.
  27  */
  28
  29 int     cmd_choose_buffer_exec(struct cmd *, struct cmd_ctx *);
  30
  31 void    cmd_choose_buffer_callback(void *, int);
  32 void    cmd_choose_buffer_free(void *);
  33
  34 const struct cmd_entry cmd_choose_buffer_entry = {
  35         "choose-buffer", NULL,
  36         "t:", 0, 1,
  37         CMD_TARGET_WINDOW_USAGE " [template]",
  38         0,
  39         NULL,
  40         NULL,
  41         cmd_choose_buffer_exec
  42 };
  43
  44 struct cmd_choose_buffer_data {
  45         struct client   *client;
  46         char            *template;
  47 };
  48
  49 int
  50 cmd_choose_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
  51 {
  52         struct args                     *args = self->args;
  53         struct cmd_choose_buffer_data   *cdata;
  54         struct winlink                  *wl;
  55         struct paste_buffer             *pb;
  56         u_int                            idx;
  57         char                            *tmp;
  58
  59         if (ctx->curclient == NULL) {
  60                 ctx->error(ctx, "must be run interactively");
  61                 return (-1);
  62         }
  63
  64         if ((wl = cmd_find_window(ctx, args_get(args, 't'), NULL)) == NULL)
  65                 return (-1);
  66
  67         if (paste_get_top(&global_buffers) == NULL)
  68                 return (0);
  69
  70         if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
  71                 return (0);
  72
  73         idx = 0;
  74         while ((pb = paste_walk_stack(&global_buffers, &idx)) != NULL) {
  75                 tmp = paste_print(pb, 50);
  76                 window_choose_add(wl->window->active, idx - 1,
  77                     "%u: %zu bytes: \"%s\"", idx - 1, pb->size, tmp);
  78                 xfree(tmp);
  79         }
  80
  81         cdata = xmalloc(sizeof *cdata);
  82         if (args->argc != 0)
  83                 cdata->template = xstrdup(args->argv[0]);
  84         else
  85                 cdata->template = xstrdup("paste-buffer -b '%%'");
  86         cdata->client = ctx->curclient;
  87         cdata->client->references++;
  88
  89         window_choose_ready(wl->window->active,
  90             0, cmd_choose_buffer_callback, cmd_choose_buffer_free, cdata);
  91
  92         return (0);
  93 }
  94
  95 void
  96 cmd_choose_buffer_callback(void *data, int idx)
  97 {
  98         struct cmd_choose_buffer_data   *cdata = data;
  99         struct cmd_list                 *cmdlist;
 100         struct cmd_ctx                   ctx;
 101         char                            *template, *cause, tmp[16];
 102
 103         if (idx == -1)
 104                 return;
 105         if (cdata->client->flags & CLIENT_DEAD)
 106                 return;
 107
 108         xsnprintf(tmp, sizeof tmp, "%u", idx);
 109         template = cmd_template_replace(cdata->template, tmp, 1);
 110
 111         if (cmd_string_parse(template, &cmdlist, &cause) != 0) {
 112                 if (cause != NULL) {
 113                         *cause = toupper((u_char) *cause);
 114                         status_message_set(cdata->client, "%s", cause);
 115                         xfree(cause);
 116                 }
 117                 xfree(template);
 118                 return;
 119         }
 120         xfree(template);
 121
 122         ctx.msgdata = NULL;
 123         ctx.curclient = cdata->client;
 124
 125         ctx.error = key_bindings_error;
 126         ctx.print = key_bindings_print;
 127         ctx.info = key_bindings_info;
 128
 129         ctx.cmdclient = NULL;
 130
 131         cmd_list_exec(cmdlist, &ctx);
 132         cmd_list_free(cmdlist);
 133 }
 134
 135 void
 136 cmd_choose_buffer_free(void *data)
 137 {
 138         struct cmd_choose_buffer_data   *cdata = data;
 139
 140         cdata->client->references--;
 141         xfree(cdata->template);
 142         xfree(cdata);
 143 }