src/panelize.c

   1 /* External panelize
   2    Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
   3    2007, 2009 Free Software Foundation, Inc.
   4
   5    Written by: 1995 Janne Kukonlehto
   6    1995 Jakub Jelinek
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  21  */
  22
  23 /** \file panelize.c
  24  *  \brief Source: External panelization module
  25  */
  26
  27 #include <config.h>
  28
  29 #include <errno.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <sys/types.h>
  33 #include <sys/stat.h>
  34 #include <unistd.h>
  35
  36 #include "lib/global.h"
  37
  38 #include "lib/skin.h"
  39 #include "lib/vfs/mc-vfs/vfs.h"
  40 #include "lib/mcconfig.h"       /* Load/save directories panelize */
  41 #include "lib/strutil.h"
  42
  43 #include "dialog.h"
  44 #include "widget.h"
  45 #include "wtools.h"             /* For common_dialog_repaint() */
  46 #include "setup.h"              /* For profile_bname */
  47 #include "dir.h"
  48 #include "panel.h"              /* current_panel */
  49 #include "layout.h"             /* repaint_screen() */
  50 #include "main.h"
  51 #include "panelize.h"
  52 #include "history.h"
  53
  54 #define UX              5
  55 #define UY              2
  56
  57 #define BX              5
  58 #define BY              18
  59
  60 #define BUTTONS         4
  61 #define LABELS          3
  62 #define B_ADD           B_USER
  63 #define B_REMOVE        (B_USER + 1)
  64
  65 static WListbox *l_panelize;
  66 static Dlg_head *panelize_dlg;
  67 static int last_listitem;
  68 static WInput *pname;
  69
  70 static struct
  71 {
  72     int ret_cmd, flags, y, x;
  73     const char *text;
  74 } panelize_but[BUTTONS] =
  75 {
  76     /* *INDENT-OFF* */
  77     { B_CANCEL, NORMAL_BUTTON, 0, 53, N_("&Cancel") },
  78     { B_ADD, NORMAL_BUTTON, 0, 28, N_("&Add new") },
  79     { B_REMOVE, NORMAL_BUTTON, 0, 16, N_("&Remove") },
  80     { B_ENTER, DEFPUSH_BUTTON, 0, 0, N_("Pane&lize") }
  81     /* *INDENT-ON* */
  82 };
  83
  84 static const char *panelize_section = "Panelize";
  85 static void do_external_panelize (char *command);
  86
  87 /* Directory panelize */
  88 static struct panelize
  89 {
  90     char *command;
  91     char *label;
  92     struct panelize *next;
  93 } *panelize = NULL;
  94
  95 static void
  96 update_command (void)
  97 {
  98     if (l_panelize->pos != last_listitem)
  99     {
 100         struct panelize *data = NULL;
 101
 102         last_listitem = l_panelize->pos;
 103         listbox_get_current (l_panelize, NULL, (void **) &data);
 104         assign_text (pname, data->command);
 105         pname->point = 0;
 106         update_input (pname, 1);
 107     }
 108 }
 109
 110 static cb_ret_t
 111 panelize_callback (Dlg_head * h, Widget * sender, dlg_msg_t msg, int parm, void *data)
 112 {
 113     switch (msg)
 114     {
 115     case DLG_INIT:
 116     case DLG_POST_KEY:
 117         tty_setcolor (MENU_ENTRY_COLOR);
 118         update_command ();
 119         return MSG_HANDLED;
 120
 121     case DLG_DRAW:
 122         common_dialog_repaint (h);
 123         tty_setcolor (COLOR_NORMAL);
 124         draw_box (h, UY, UX, h->lines - 10, h->cols - 10, TRUE);
 125         return MSG_HANDLED;
 126
 127     default:
 128         return default_dlg_callback (h, sender, msg, parm, data);
 129     }
 130 }
 131
 132 static void
 133 init_panelize (void)
 134 {
 135     int i, panelize_cols = COLS - 6;
 136     struct panelize *current = panelize;
 137
 138 #ifdef ENABLE_NLS
 139     static int i18n_flag = 0;
 140     static int maxlen = 0;
 141
 142     if (!i18n_flag)
 143     {
 144         i = sizeof (panelize_but) / sizeof (panelize_but[0]);
 145         while (i--)
 146         {
 147             panelize_but[i].text = _(panelize_but[i].text);
 148             maxlen += str_term_width1 (panelize_but[i].text) + 5;
 149         }
 150         maxlen += 10;
 151
 152         i18n_flag = 1;
 153     }
 154     panelize_cols = max (panelize_cols, maxlen);
 155
 156     panelize_but[2].x = panelize_but[3].x + str_term_width1 (panelize_but[3].text) + 7;
 157     panelize_but[1].x = panelize_but[2].x + str_term_width1 (panelize_but[2].text) + 5;
 158     panelize_but[0].x = panelize_cols - str_term_width1 (panelize_but[0].text) - 8 - BX;
 159
 160 #endif /* ENABLE_NLS */
 161
 162     last_listitem = 0;
 163
 164     do_refresh ();
 165
 166     panelize_dlg =
 167         create_dlg (0, 0, 22, panelize_cols, dialog_colors,
 168                     panelize_callback, "[External panelize]",
 169                     _("External panelize"), DLG_CENTER | DLG_REVERSE);
 170
 171     for (i = 0; i < BUTTONS; i++)
 172         add_widget (panelize_dlg,
 173                     button_new (BY + panelize_but[i].y,
 174                                 BX + panelize_but[i].x,
 175                                 panelize_but[i].ret_cmd,
 176                                 panelize_but[i].flags, panelize_but[i].text, 0));
 177
 178     pname =
 179         input_new (UY + 14, UX, INPUT_COLOR, panelize_dlg->cols - 10, "",
 180                    "in", INPUT_COMPLETE_DEFAULT);
 181     add_widget (panelize_dlg, pname);
 182
 183     add_widget (panelize_dlg, label_new (UY + 13, UX, _("Command")));
 184
 185     /* get new listbox */
 186     l_panelize = listbox_new (UY + 1, UX + 1, 10, panelize_dlg->cols - 12, FALSE, NULL);
 187
 188     while (current)
 189     {
 190         listbox_add_item (l_panelize, LISTBOX_APPEND_AT_END, 0, current->label, current);
 191         current = current->next;
 192     }
 193
 194     /* add listbox to the dialogs */
 195     add_widget (panelize_dlg, l_panelize);
 196
 197     listbox_select_entry (l_panelize, listbox_search_text (l_panelize, _("Other command")));
 198 }
 199
 200 static void
 201 panelize_done (void)
 202 {
 203     destroy_dlg (panelize_dlg);
 204     repaint_screen ();
 205 }
 206
 207 static void
 208 add2panelize (char *label, char *command)
 209 {
 210     struct panelize *current, *old;
 211
 212     old = NULL;
 213     current = panelize;
 214     while (current && strcmp (current->label, label) <= 0)
 215     {
 216         old = current;
 217         current = current->next;
 218     }
 219
 220     if (old == NULL)
 221     {
 222         panelize = g_new (struct panelize, 1);
 223         panelize->label = label;
 224         panelize->command = command;
 225         panelize->next = current;
 226     }
 227     else
 228     {
 229         struct panelize *new;
 230         new = g_new (struct panelize, 1);
 231         new->label = label;
 232         new->command = command;
 233         old->next = new;
 234         new->next = current;
 235     }
 236 }
 237
 238 static void
 239 add2panelize_cmd (void)
 240 {
 241     char *label;
 242
 243     if (pname->buffer && (*pname->buffer))
 244     {
 245         label = input_dialog (_(" Add to external panelize "),
 246                               _(" Enter command label: "), MC_HISTORY_FM_PANELIZE_ADD, "");
 247         if (!label)
 248             return;
 249         if (!*label)
 250         {
 251             g_free (label);
 252             return;
 253         }
 254
 255         add2panelize (label, g_strdup (pname->buffer));
 256     }
 257 }
 258
 259 static void
 260 remove_from_panelize (struct panelize *entry)
 261 {
 262     if (strcmp (entry->label, _("Other command")) != 0)
 263     {
 264         if (entry == panelize)
 265         {
 266             panelize = panelize->next;
 267         }
 268         else
 269         {
 270             struct panelize *current = panelize;
 271             while (current && current->next != entry)
 272                 current = current->next;
 273             if (current)
 274             {
 275                 current->next = entry->next;
 276             }
 277         }
 278
 279         g_free (entry->label);
 280         g_free (entry->command);
 281         g_free (entry);
 282     }
 283 }
 284
 285 void
 286 external_panelize (void)
 287 {
 288     char *target = NULL;
 289
 290     if (!vfs_current_is_local ())
 291     {
 292         message (D_ERROR, MSG_ERROR, _(" Cannot run external panelize in a non-local directory "));
 293         return;
 294     }
 295
 296     init_panelize ();
 297
 298     /* display file info */
 299     tty_setcolor (SELECTED_COLOR);
 300
 301     run_dlg (panelize_dlg);
 302
 303     switch (panelize_dlg->ret_value)
 304     {
 305     case B_CANCEL:
 306         break;
 307
 308     case B_ADD:
 309         add2panelize_cmd ();
 310         break;
 311
 312     case B_REMOVE:
 313         {
 314             struct panelize *entry;
 315
 316             listbox_get_current (l_panelize, NULL, (void **) &entry);
 317             remove_from_panelize (entry);
 318             break;
 319         }
 320
 321     case B_ENTER:
 322         target = pname->buffer;
 323         if (target != NULL && *target)
 324         {
 325             char *cmd = g_strdup (target);
 326             destroy_dlg (panelize_dlg);
 327             do_external_panelize (cmd);
 328             g_free (cmd);
 329             repaint_screen ();
 330             return;
 331         }
 332         break;
 333     }
 334
 335     panelize_done ();
 336 }
 337
 338 void
 339 load_panelize (void)
 340 {
 341     gchar **profile_keys, **keys;
 342     gsize len;
 343     GIConv conv;
 344     GString *buffer;
 345
 346     conv = str_crt_conv_from ("UTF-8");
 347
 348     profile_keys = keys = mc_config_get_keys (mc_main_config, panelize_section, &len);
 349
 350     add2panelize (g_strdup (_("Other command")), g_strdup (""));
 351
 352     if (!profile_keys || *profile_keys == NULL)
 353     {
 354         add2panelize (g_strdup (_("Find rejects after patching")),
 355                       g_strdup ("find . -name \\*.rej -print"));
 356         add2panelize (g_strdup (_("Find *.orig after patching")),
 357                       g_strdup ("find . -name \\*.orig -print"));
 358         add2panelize (g_strdup (_("Find SUID and SGID programs")),
 359                       g_strdup
 360                       ("find . \\( \\( -perm -04000 -a -perm +011 \\) -o \\( -perm -02000 -a -perm +01 \\) \\) -print"));
 361         return;
 362     }
 363
 364     while (*profile_keys)
 365     {
 366
 367         if (utf8_display || conv == INVALID_CONV)
 368         {
 369             buffer = g_string_new (*profile_keys);
 370         }
 371         else
 372         {
 373             buffer = g_string_new ("");
 374             if (str_convert (conv, *profile_keys, buffer) == ESTR_FAILURE)
 375             {
 376                 g_string_free (buffer, TRUE);
 377                 buffer = g_string_new (*profile_keys);
 378             }
 379         }
 380
 381         add2panelize (g_string_free (buffer, FALSE),
 382                       mc_config_get_string (mc_main_config, panelize_section, *profile_keys, ""));
 383         profile_keys++;
 384     }
 385     g_strfreev (keys);
 386     str_close_conv (conv);
 387 }
 388
 389 void
 390 save_panelize (void)
 391 {
 392     struct panelize *current = panelize;
 393
 394     mc_config_del_group (mc_main_config, panelize_section);
 395     for (; current; current = current->next)
 396     {
 397         if (strcmp (current->label, _("Other command")))
 398             mc_config_set_string (mc_main_config,
 399                                   panelize_section, current->label, current->command);
 400     }
 401     mc_config_save_file (mc_main_config, NULL);
 402 }
 403
 404 void
 405 done_panelize (void)
 406 {
 407     struct panelize *current = panelize;
 408     struct panelize *next;
 409
 410     for (; current; current = next)
 411     {
 412         next = current->next;
 413         g_free (current->label);
 414         g_free (current->command);
 415         g_free (current);
 416     }
 417 }
 418
 419 static void
 420 do_external_panelize (char *command)
 421 {
 422     int status, link_to_dir, stale_link;
 423     int next_free = 0;
 424     struct stat st;
 425     dir_list *list = &current_panel->dir;
 426     char line[MC_MAXPATHLEN];
 427     char *name;
 428     FILE *external;
 429
 430     open_error_pipe ();
 431     external = popen (command, "r");
 432     if (!external)
 433     {
 434         close_error_pipe (D_ERROR, _("Cannot invoke command."));
 435         return;
 436     }
 437     /* Clear the counters and the directory list */
 438     panel_clean_dir (current_panel);
 439
 440     while (1)
 441     {
 442         clearerr (external);
 443         if (fgets (line, MC_MAXPATHLEN, external) == NULL)
 444         {
 445             if (ferror (external) && errno == EINTR)
 446                 continue;
 447             else
 448                 break;
 449         }
 450         if (line[strlen (line) - 1] == '\n')
 451             line[strlen (line) - 1] = 0;
 452         if (strlen (line) < 1)
 453             continue;
 454         if (line[0] == '.' && line[1] == PATH_SEP)
 455             name = line + 2;
 456         else
 457             name = line;
 458         status = handle_path (list, name, &st, next_free, &link_to_dir, &stale_link);
 459         if (status == 0)
 460             continue;
 461         if (status == -1)
 462             break;
 463         list->list[next_free].fnamelen = strlen (name);
 464         list->list[next_free].fname = g_strdup (name);
 465         file_mark (current_panel, next_free, 0);
 466         list->list[next_free].f.link_to_dir = link_to_dir;
 467         list->list[next_free].f.stale_link = stale_link;
 468         list->list[next_free].f.dir_size_computed = 0;
 469         list->list[next_free].st = st;
 470         list->list[next_free].sort_key = NULL;
 471         list->list[next_free].second_sort_key = NULL;
 472         next_free++;
 473         if (!(next_free & 32))
 474             rotate_dash ();
 475     }
 476
 477     current_panel->is_panelized = 1;
 478     if (next_free)
 479     {
 480         current_panel->count = next_free;
 481         if (list->list[0].fname[0] == PATH_SEP)
 482         {
 483             int ret;
 484             strcpy (current_panel->cwd, PATH_SEP_STR);
 485             ret = chdir (PATH_SEP_STR);
 486         }
 487     }
 488     else
 489     {
 490         current_panel->count = set_zero_dir (list) ? 1 : 0;
 491     }
 492     if (pclose (external) < 0)
 493         message (D_NORMAL, _("External panelize"), _("Pipe close failed"));
 494     close_error_pipe (D_NORMAL, NULL);
 495     try_to_select (current_panel, NULL);
 496     panel_re_sort (current_panel);
 497 }