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         CMD_TARGET_WINDOW_USAGE " [template]",
  37         CMD_ARG01, "",
  38         cmd_target_init,
  39         cmd_target_parse,
  40         cmd_choose_buffer_exec,
  41         cmd_target_free,
  42         cmd_target_print
  43 };
  44
  45 struct cmd_choose_buffer_data {
  46         struct client   *client;
  47         char            *template;
  48 };
  49
  50 int
  51 cmd_choose_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
  52 {
  53         struct cmd_target_data          *data = self->data;
  54         struct cmd_choose_buffer_data   *cdata;
  55         struct session                  *s;
  56         struct winlink                  *wl;
  57         struct paste_buffer             *pb;
  58         u_int                            idx;
  59         char                            *tmp;
  60
  61         if (ctx->curclient == NULL) {
  62                 ctx->error(ctx, "must be run interactively");
  63                 return (-1);
  64         }
  65         s = ctx->curclient->session;
  66
  67         if ((wl = cmd_find_window(ctx, data->target, NULL)) == NULL)
  68                 return (-1);
  69
  70         if (paste_get_top(&s->buffers) == NULL)
  71                 return (0);
  72
  73         if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
  74                 return (0);
  75
  76         idx = 0;
  77         while ((pb = paste_walk_stack(&s->buffers, &idx)) != NULL) {
  78                 tmp = paste_print(pb, 50);
  79                 window_choose_add(wl->window->active, idx - 1,
  80                     "%u: %zu bytes: \"%s\"", idx - 1, pb->size, tmp);
  81                 xfree(tmp);
  82         }
  83
  84         cdata = xmalloc(sizeof *cdata);
  85         if (data->arg != NULL)
  86                 cdata->template = xstrdup(data->arg);
  87         else
  88                 cdata->template = xstrdup("paste-buffer -b '%%'");
  89         cdata->client = ctx->curclient;
  90         cdata->client->references++;
  91
  92         window_choose_ready(wl->window->active,
  93             0, cmd_choose_buffer_callback, cmd_choose_buffer_free, cdata);
  94
  95         return (0);
  96 }
  97
  98 void
  99 cmd_choose_buffer_callback(void *data, int idx)
 100 {
 101         struct cmd_choose_buffer_data   *cdata = data;
 102         struct cmd_list                 *cmdlist;
 103         struct cmd_ctx                   ctx;
 104         char                            *template, *cause, tmp[16];
 105
 106         if (idx == -1)
 107                 return;
 108         if (cdata->client->flags & CLIENT_DEAD)
 109                 return;
 110
 111         xsnprintf(tmp, sizeof tmp, "%u", idx);
 112         template = cmd_template_replace(cdata->template, tmp, 1);
 113
 114         if (cmd_string_parse(template, &cmdlist, &cause) != 0) {
 115                 if (cause != NULL) {
 116                         *cause = toupper((u_char) *cause);
 117                         status_message_set(cdata->client, "%s", cause);
 118                         xfree(cause);
 119                 }
 120                 xfree(template);
 121                 return;
 122         }
 123         xfree(template);
 124
 125         ctx.msgdata = NULL;
 126         ctx.curclient = cdata->client;
 127
 128         ctx.error = key_bindings_error;
 129         ctx.print = key_bindings_print;
 130         ctx.info = key_bindings_info;
 131
 132         ctx.cmdclient = NULL;
 133
 134         cmd_list_exec(cmdlist, &ctx);
 135         cmd_list_free(cmdlist);
 136 }
 137
 138 void
 139 cmd_choose_buffer_free(void *data)
 140 {
 141         struct cmd_choose_buffer_data   *cdata = data;
 142
 143         cdata->client->references--;
 144         xfree(cdata->template);
 145         xfree(cdata);
 146 }