src/filemanager/panelize.c

   1 /*
   2    External panelize
   3
   4    Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
   5    2007, 2009, 2011
   6    The Free Software Foundation, Inc.
   7
   8    Written by:
   9    Janne Kukonlehto, 1995
  10    Jakub Jelinek, 1995
  11
  12    This file is part of the Midnight Commander.
  13
  14    The Midnight Commander is free software: you can redistribute it
  15    and/or modify it under the terms of the GNU General Public License as
  16    published by the Free Software Foundation, either version 3 of the License,
  17    or (at your option) any later version.
  18
  19    The Midnight Commander is distributed in the hope that it will be useful,
  20    but WITHOUT ANY WARRANTY; without even the implied warranty of
  21    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22    GNU General Public License for more details.
  23
  24    You should have received a copy of the GNU General Public License
  25    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  26  */
  27
  28 /** \file panelize.c
  29  *  \brief Source: External panelization module
  30  */
  31
  32 #include <config.h>
  33
  34 #include <errno.h>
  35 #include <stdio.h>
  36 #include <string.h>
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39 #include <unistd.h>
  40
  41 #include "lib/global.h"
  42
  43 #include "lib/skin.h"
  44 #include "lib/vfs/vfs.h"
  45 #include "lib/mcconfig.h"       /* Load/save directories panelize */
  46 #include "lib/strutil.h"
  47 #include "lib/util.h"
  48 #include "lib/widget.h"
  49
  50 #include "src/setup.h"          /* For profile_bname */
  51 #include "src/history.h"
  52
  53 #include "dir.h"
  54 #include "midnight.h"           /* current_panel */
  55 #include "panel.h"              /* WPanel */
  56
  57 #include "panelize.h"
  58
  59 /*** global variables ****************************************************************************/
  60
  61 /*** file scope macro definitions ****************************************************************/
  62
  63 #define UX 5
  64 #define UY 2
  65
  66 #define BX 5
  67 #define BY 18
  68
  69 #define BUTTONS  4
  70 #define LABELS   3
  71 #define B_ADD    B_USER
  72 #define B_REMOVE (B_USER + 1)
  73
  74 /*** file scope type declarations ****************************************************************/
  75
  76 /*** file scope variables ************************************************************************/
  77
  78 static WListbox *l_panelize;
  79 static Dlg_head *panelize_dlg;
  80 static int last_listitem;
  81 static WInput *pname;
  82
  83 static struct
  84 {
  85     int ret_cmd;
  86     button_flags_t flags;
  87     int y, x;
  88     const char *text;
  89 } panelize_but[BUTTONS] =
  90 {
  91     /* *INDENT-OFF* */
  92     { B_CANCEL, NORMAL_BUTTON, 0, 53, N_("&Cancel") },
  93     { B_ADD, NORMAL_BUTTON, 0, 28, N_("&Add new") },
  94     { B_REMOVE, NORMAL_BUTTON, 0, 16, N_("&Remove") },
  95     { B_ENTER, DEFPUSH_BUTTON, 0, 0, N_("Pane&lize") }
  96     /* *INDENT-ON* */
  97 };
  98
  99 static const char *panelize_section = "Panelize";
 100
 101 /* Directory panelize */
 102 static struct panelize
 103 {
 104     char *command;
 105     char *label;
 106     struct panelize *next;
 107 } *panelize = NULL;
 108
 109 /*** file scope functions ************************************************************************/
 110 /* --------------------------------------------------------------------------------------------- */
 111
 112 static void do_external_panelize (char *command);
 113
 114 /* --------------------------------------------------------------------------------------------- */
 115
 116 static void
 117 update_command (void)
 118 {
 119     if (l_panelize->pos != last_listitem)
 120     {
 121         struct panelize *data = NULL;
 122
 123         last_listitem = l_panelize->pos;
 124         listbox_get_current (l_panelize, NULL, (void **) &data);
 125         input_assign_text (pname, data->command);
 126         pname->point = 0;
 127         input_update (pname, TRUE);
 128     }
 129 }
 130
 131 /* --------------------------------------------------------------------------------------------- */
 132
 133 static cb_ret_t
 134 panelize_callback (Dlg_head * h, Widget * sender, dlg_msg_t msg, int parm, void *data)
 135 {
 136     switch (msg)
 137     {
 138     case DLG_INIT:
 139     case DLG_POST_KEY:
 140         tty_setcolor (MENU_ENTRY_COLOR);
 141         update_command ();
 142         return MSG_HANDLED;
 143
 144     case DLG_DRAW:
 145         common_dialog_repaint (h);
 146         tty_setcolor (COLOR_NORMAL);
 147         draw_box (h, UY, UX, h->lines - 10, h->cols - 10, TRUE);
 148         return MSG_HANDLED;
 149
 150     default:
 151         return default_dlg_callback (h, sender, msg, parm, data);
 152     }
 153 }
 154
 155 /* --------------------------------------------------------------------------------------------- */
 156
 157 static void
 158 init_panelize (void)
 159 {
 160     int i, panelize_cols = COLS - 6;
 161     struct panelize *current = panelize;
 162
 163 #ifdef ENABLE_NLS
 164     static int i18n_flag = 0;
 165     static int maxlen = 0;
 166
 167     if (!i18n_flag)
 168     {
 169         i = sizeof (panelize_but) / sizeof (panelize_but[0]);
 170         while (i--)
 171         {
 172             panelize_but[i].text = _(panelize_but[i].text);
 173             maxlen += str_term_width1 (panelize_but[i].text) + 5;
 174         }
 175         maxlen += 10;
 176
 177         i18n_flag = 1;
 178     }
 179     panelize_cols = max (panelize_cols, maxlen);
 180
 181     panelize_but[2].x = panelize_but[3].x + str_term_width1 (panelize_but[3].text) + 7;
 182     panelize_but[1].x = panelize_but[2].x + str_term_width1 (panelize_but[2].text) + 5;
 183     panelize_but[0].x = panelize_cols - str_term_width1 (panelize_but[0].text) - 8 - BX;
 184
 185 #endif /* ENABLE_NLS */
 186
 187     last_listitem = 0;
 188
 189     do_refresh ();
 190
 191     panelize_dlg =
 192         create_dlg (TRUE, 0, 0, 22, panelize_cols, dialog_colors,
 193                     panelize_callback, "[External panelize]",
 194                     _("External panelize"), DLG_CENTER | DLG_REVERSE);
 195
 196     for (i = 0; i < BUTTONS; i++)
 197         add_widget (panelize_dlg,
 198                     button_new (BY + panelize_but[i].y,
 199                                 BX + panelize_but[i].x,
 200                                 panelize_but[i].ret_cmd,
 201                                 panelize_but[i].flags, panelize_but[i].text, 0));
 202
 203     pname =
 204         input_new (UY + 14, UX, input_get_default_colors (),
 205                    panelize_dlg->cols - 10, "", "in", INPUT_COMPLETE_DEFAULT);
 206     add_widget (panelize_dlg, pname);
 207
 208     add_widget (panelize_dlg, label_new (UY + 13, UX, _("Command")));
 209
 210     /* get new listbox */
 211     l_panelize = listbox_new (UY + 1, UX + 1, 10, panelize_dlg->cols - 12, FALSE, NULL);
 212
 213     while (current)
 214     {
 215         listbox_add_item (l_panelize, LISTBOX_APPEND_AT_END, 0, current->label, current);
 216         current = current->next;
 217     }
 218
 219     /* add listbox to the dialogs */
 220     add_widget (panelize_dlg, l_panelize);
 221
 222     listbox_select_entry (l_panelize, listbox_search_text (l_panelize, _("Other command")));
 223 }
 224
 225 /* --------------------------------------------------------------------------------------------- */
 226
 227 static void
 228 panelize_done (void)
 229 {
 230     destroy_dlg (panelize_dlg);
 231     repaint_screen ();
 232 }
 233
 234 /* --------------------------------------------------------------------------------------------- */
 235
 236 static void
 237 add2panelize (char *label, char *command)
 238 {
 239     struct panelize *current, *old;
 240
 241     old = NULL;
 242     current = panelize;
 243     while (current && strcmp (current->label, label) <= 0)
 244     {
 245         old = current;
 246         current = current->next;
 247     }
 248
 249     if (old == NULL)
 250     {
 251         panelize = g_new (struct panelize, 1);
 252         panelize->label = label;
 253         panelize->command = command;
 254         panelize->next = current;
 255     }
 256     else
 257     {
 258         struct panelize *new;
 259         new = g_new (struct panelize, 1);
 260         new->label = label;
 261         new->command = command;
 262         old->next = new;
 263         new->next = current;
 264     }
 265 }
 266
 267 /* --------------------------------------------------------------------------------------------- */
 268
 269 static void
 270 add2panelize_cmd (void)
 271 {
 272     char *label;
 273
 274     if (pname->buffer && (*pname->buffer))
 275     {
 276         label = input_dialog (_("Add to external panelize"),
 277                               _("Enter command label:"), MC_HISTORY_FM_PANELIZE_ADD, "");
 278         if (!label)
 279             return;
 280         if (!*label)
 281         {
 282             g_free (label);
 283             return;
 284         }
 285
 286         add2panelize (label, g_strdup (pname->buffer));
 287     }
 288 }
 289
 290 /* --------------------------------------------------------------------------------------------- */
 291
 292 static void
 293 remove_from_panelize (struct panelize *entry)
 294 {
 295     if (strcmp (entry->label, _("Other command")) != 0)
 296     {
 297         if (entry == panelize)
 298         {
 299             panelize = panelize->next;
 300         }
 301         else
 302         {
 303             struct panelize *current = panelize;
 304             while (current && current->next != entry)
 305                 current = current->next;
 306             if (current)
 307             {
 308                 current->next = entry->next;
 309             }
 310         }
 311
 312         g_free (entry->label);
 313         g_free (entry->command);
 314         g_free (entry);
 315     }
 316 }
 317
 318 /* --------------------------------------------------------------------------------------------- */
 319
 320 static void
 321 do_external_panelize (char *command)
 322 {
 323     int status, link_to_dir, stale_link;
 324     int next_free = 0;
 325     struct stat st;
 326     dir_list *list = &current_panel->dir;
 327     char line[MC_MAXPATHLEN];
 328     char *name;
 329     FILE *external;
 330
 331     open_error_pipe ();
 332     external = popen (command, "r");
 333     if (!external)
 334     {
 335         close_error_pipe (D_ERROR, _("Cannot invoke command."));
 336         return;
 337     }
 338     /* Clear the counters and the directory list */
 339     panel_clean_dir (current_panel);
 340
 341     g_strlcpy (panelized_panel.root, current_panel->cwd, MC_MAXPATHLEN);
 342
 343     if (set_zero_dir (list))
 344         next_free++;
 345
 346     while (1)
 347     {
 348         clearerr (external);
 349         if (fgets (line, MC_MAXPATHLEN, external) == NULL)
 350         {
 351             if (ferror (external) && errno == EINTR)
 352                 continue;
 353             else
 354                 break;
 355         }
 356         if (line[strlen (line) - 1] == '\n')
 357             line[strlen (line) - 1] = 0;
 358         if (strlen (line) < 1)
 359             continue;
 360         if (line[0] == '.' && line[1] == PATH_SEP)
 361             name = line + 2;
 362         else
 363             name = line;
 364         status = handle_path (list, name, &st, next_free, &link_to_dir, &stale_link);
 365         if (status == 0)
 366             continue;
 367         if (status == -1)
 368             break;
 369         list->list[next_free].fnamelen = strlen (name);
 370         list->list[next_free].fname = g_strndup (name, list->list[next_free].fnamelen);
 371         file_mark (current_panel, next_free, 0);
 372         list->list[next_free].f.link_to_dir = link_to_dir;
 373         list->list[next_free].f.stale_link = stale_link;
 374         list->list[next_free].f.dir_size_computed = 0;
 375         list->list[next_free].st = st;
 376         list->list[next_free].sort_key = NULL;
 377         list->list[next_free].second_sort_key = NULL;
 378         next_free++;
 379         if (!(next_free & 32))
 380             rotate_dash ();
 381     }
 382
 383     current_panel->is_panelized = TRUE;
 384     if (next_free)
 385     {
 386         current_panel->count = next_free;
 387         if (list->list[0].fname[0] == PATH_SEP)
 388         {
 389             int ret;
 390             strcpy (current_panel->cwd, PATH_SEP_STR);
 391             ret = chdir (PATH_SEP_STR);
 392         }
 393     }
 394     else
 395     {
 396         current_panel->count = set_zero_dir (list) ? 1 : 0;
 397     }
 398     if (pclose (external) < 0)
 399         message (D_NORMAL, _("External panelize"), _("Pipe close failed"));
 400     close_error_pipe (D_NORMAL, NULL);
 401     try_to_select (current_panel, NULL);
 402     panel_re_sort (current_panel);
 403 }
 404
 405 /* --------------------------------------------------------------------------------------------- */
 406
 407 static void
 408 do_panelize_cd (struct WPanel *panel)
 409 {
 410     int i;
 411     dir_list *list = &panel->dir;
 412     gboolean panelized_same;
 413
 414     clean_dir (list, panel->count);
 415     if (panelized_panel.root[0] == '\0')
 416         g_strlcpy (panelized_panel.root, panel->cwd, MC_MAXPATHLEN);
 417
 418     if (panelized_panel.count < 1)
 419     {
 420         if (set_zero_dir (&panelized_panel.list))
 421             panelized_panel.count = 1;
 422     }
 423     else if (panelized_panel.count >= list->size)
 424     {
 425         list->list = g_try_realloc (list->list, sizeof (file_entry) * panelized_panel.count);
 426         list->size = panelized_panel.count;
 427     }
 428     panel->count = panelized_panel.count;
 429     panel->is_panelized = TRUE;
 430
 431     panelized_same = (strcmp (panelized_panel.root, panel->cwd) == 0);
 432
 433     for (i = 0; i < panelized_panel.count; i++)
 434     {
 435         if (panelized_same
 436             || (panelized_panel.list.list[i].fname[0] == '.'
 437                 && panelized_panel.list.list[i].fname[1] == '.'
 438                 && panelized_panel.list.list[i].fname[2] == '\0'))
 439         {
 440             list->list[i].fnamelen = panelized_panel.list.list[i].fnamelen;
 441             list->list[i].fname = g_strndup (panelized_panel.list.list[i].fname,
 442                                              panelized_panel.list.list[i].fnamelen);
 443         }
 444         else
 445         {
 446             list->list[i].fname = mc_build_filename (panelized_panel.root,
 447                                                      panelized_panel.list.list[i].fname,
 448                                                      (char *) NULL);
 449             list->list[i].fnamelen = strlen (list->list[i].fname);
 450         }
 451         list->list[i].f.link_to_dir = panelized_panel.list.list[i].f.link_to_dir;
 452         list->list[i].f.stale_link = panelized_panel.list.list[i].f.stale_link;
 453         list->list[i].f.dir_size_computed = panelized_panel.list.list[i].f.dir_size_computed;
 454         list->list[i].f.marked = panelized_panel.list.list[i].f.marked;
 455         list->list[i].st = panelized_panel.list.list[i].st;
 456         list->list[i].sort_key = panelized_panel.list.list[i].sort_key;
 457         list->list[i].second_sort_key = panelized_panel.list.list[i].second_sort_key;
 458     }
 459     try_to_select (panel, NULL);
 460 }
 461
 462 /* --------------------------------------------------------------------------------------------- */
 463 /*** public functions ****************************************************************************/
 464 /* --------------------------------------------------------------------------------------------- */
 465
 466 void
 467 panelize_save_panel (struct WPanel *panel)
 468 {
 469     int i;
 470     dir_list *list = &panel->dir;
 471
 472     g_strlcpy (panelized_panel.root, panel->cwd, MC_MAXPATHLEN);
 473
 474     if (panelized_panel.count > 0)
 475         clean_dir (&panelized_panel.list, panelized_panel.count);
 476     if (panel->count < 1)
 477         return;
 478
 479     panelized_panel.count = panel->count;
 480     if (panel->count >= panelized_panel.list.size)
 481     {
 482         panelized_panel.list.list = g_try_realloc (panelized_panel.list.list,
 483                                                    sizeof (file_entry) * panel->count);
 484         panelized_panel.list.size = panel->count;
 485     }
 486     for (i = 0; i < panel->count; i++)
 487     {
 488         panelized_panel.list.list[i].fnamelen = list->list[i].fnamelen;
 489         panelized_panel.list.list[i].fname = g_strndup (list->list[i].fname, list->list[i].fnamelen);
 490         panelized_panel.list.list[i].f.link_to_dir = list->list[i].f.link_to_dir;
 491         panelized_panel.list.list[i].f.stale_link = list->list[i].f.stale_link;
 492         panelized_panel.list.list[i].f.dir_size_computed = list->list[i].f.dir_size_computed;
 493         panelized_panel.list.list[i].f.marked = list->list[i].f.marked;
 494         panelized_panel.list.list[i].st = list->list[i].st;
 495         panelized_panel.list.list[i].sort_key = list->list[i].sort_key;
 496         panelized_panel.list.list[i].second_sort_key = list->list[i].second_sort_key;
 497     }
 498 }
 499
 500 /* --------------------------------------------------------------------------------------------- */
 501
 502 void
 503 cd_panelize_cmd (void)
 504 {
 505     if (get_display_type (MENU_PANEL_IDX) != view_listing)
 506         set_display_type (MENU_PANEL_IDX, view_listing);
 507
 508     do_panelize_cd ((struct WPanel *) get_panel_widget (MENU_PANEL_IDX));
 509 }
 510
 511 /* --------------------------------------------------------------------------------------------- */
 512
 513 void
 514 external_panelize (void)
 515 {
 516     char *target = NULL;
 517
 518     if (!vfs_current_is_local ())
 519     {
 520         message (D_ERROR, MSG_ERROR, _("Cannot run external panelize in a non-local directory"));
 521         return;
 522     }
 523
 524     init_panelize ();
 525
 526     /* display file info */
 527     tty_setcolor (SELECTED_COLOR);
 528
 529     run_dlg (panelize_dlg);
 530
 531     switch (panelize_dlg->ret_value)
 532     {
 533     case B_CANCEL:
 534         break;
 535
 536     case B_ADD:
 537         add2panelize_cmd ();
 538         break;
 539
 540     case B_REMOVE:
 541         {
 542             struct panelize *entry;
 543
 544             listbox_get_current (l_panelize, NULL, (void **) &entry);
 545             remove_from_panelize (entry);
 546             break;
 547         }
 548
 549     case B_ENTER:
 550         target = pname->buffer;
 551         if (target != NULL && *target)
 552         {
 553             char *cmd = g_strdup (target);
 554             destroy_dlg (panelize_dlg);
 555             do_external_panelize (cmd);
 556             g_free (cmd);
 557             repaint_screen ();
 558             return;
 559         }
 560         break;
 561     }
 562
 563     panelize_done ();
 564 }
 565
 566 /* --------------------------------------------------------------------------------------------- */
 567
 568 void
 569 load_panelize (void)
 570 {
 571     gchar **profile_keys, **keys;
 572     gsize len;
 573     GIConv conv;
 574
 575     conv = str_crt_conv_from ("UTF-8");
 576
 577     profile_keys = keys = mc_config_get_keys (mc_main_config, panelize_section, &len);
 578
 579     add2panelize (g_strdup (_("Other command")), g_strdup (""));
 580
 581     if (!profile_keys || *profile_keys == NULL)
 582     {
 583         add2panelize (g_strdup (_("Find rejects after patching")),
 584                       g_strdup ("find . -name \\*.rej -print"));
 585         add2panelize (g_strdup (_("Find *.orig after patching")),
 586                       g_strdup ("find . -name \\*.orig -print"));
 587         add2panelize (g_strdup (_("Find SUID and SGID programs")),
 588                       g_strdup
 589                       ("find . \\( \\( -perm -04000 -a -perm +011 \\) -o \\( -perm -02000 -a -perm +01 \\) \\) -print"));
 590         return;
 591     }
 592
 593     while (*profile_keys)
 594     {
 595         GString *buffer;
 596
 597         if (mc_global.utf8_display || conv == INVALID_CONV)
 598             buffer = g_string_new (*profile_keys);
 599         else
 600         {
 601             buffer = g_string_new ("");
 602             if (str_convert (conv, *profile_keys, buffer) == ESTR_FAILURE)
 603                 g_string_assign (buffer, *profile_keys);
 604         }
 605
 606         add2panelize (g_string_free (buffer, FALSE),
 607                       mc_config_get_string (mc_main_config, panelize_section, *profile_keys, ""));
 608         profile_keys++;
 609     }
 610
 611     g_strfreev (keys);
 612     str_close_conv (conv);
 613 }
 614
 615 /* --------------------------------------------------------------------------------------------- */
 616
 617 void
 618 save_panelize (void)
 619 {
 620     struct panelize *current = panelize;
 621
 622     mc_config_del_group (mc_main_config, panelize_section);
 623     for (; current; current = current->next)
 624     {
 625         if (strcmp (current->label, _("Other command")))
 626             mc_config_set_string (mc_main_config,
 627                                   panelize_section, current->label, current->command);
 628     }
 629 }
 630
 631 /* --------------------------------------------------------------------------------------------- */
 632
 633 void
 634 done_panelize (void)
 635 {
 636     struct panelize *current = panelize;
 637     struct panelize *next;
 638
 639     for (; current; current = next)
 640     {
 641         next = current->next;
 642         g_free (current->label);
 643         g_free (current->command);
 644         g_free (current);
 645     }
 646 }
 647
 648 /* --------------------------------------------------------------------------------------------- */