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     int ret_cmd, flags, y, x;
  72     const char *text;
  73 } panelize_but [BUTTONS] = {
  74     { B_CANCEL, NORMAL_BUTTON, 0, 53, N_("&Cancel")   },
  75     { B_ADD, NORMAL_BUTTON,    0, 28, N_("&Add new")  },
  76     { B_REMOVE, NORMAL_BUTTON, 0, 16, N_("&Remove")   },
  77     { B_ENTER, DEFPUSH_BUTTON, 0,  0, N_("Pane&lize") },
  78 };
  79
  80 static const char *panelize_section = "Panelize";
  81 static void do_external_panelize (char *command);
  82
  83 /* Directory panelize */
  84 static struct panelize {
  85     char *command;
  86     char *label;
  87     struct panelize *next;
  88 } *panelize = NULL;
  89
  90 static void
  91 update_command (void)
  92 {
  93     if (l_panelize->pos != last_listitem) {
  94         struct panelize *data = NULL;
  95
  96         last_listitem = l_panelize->pos;
  97         listbox_get_current (l_panelize, NULL, (void **) &data);
  98         assign_text (pname, data->command);
  99         pname->point = 0;
 100         update_input (pname, 1);
 101     }
 102 }
 103
 104 static cb_ret_t
 105 panelize_callback (Dlg_head *h, Widget *sender,
 106                     dlg_msg_t msg, int parm, void *data)
 107 {
 108     switch (msg) {
 109     case DLG_INIT:
 110     case DLG_POST_KEY:
 111         tty_setcolor (MENU_ENTRY_COLOR);
 112         update_command ();
 113         return MSG_HANDLED;
 114
 115     case DLG_DRAW:
 116         common_dialog_repaint (h);
 117         tty_setcolor (COLOR_NORMAL);
 118         draw_box (h, UY, UX, h->lines - 10, h->cols - 10);
 119         return MSG_HANDLED;
 120
 121     default:
 122         return default_dlg_callback (h, sender, msg, parm, data);
 123     }
 124 }
 125
 126 static void
 127 init_panelize (void)
 128 {
 129     int i, panelize_cols = COLS - 6;
 130     struct panelize *current = panelize;
 131
 132 #ifdef ENABLE_NLS
 133     static int i18n_flag = 0;
 134     static int maxlen = 0;
 135
 136     if (!i18n_flag) {
 137         i = sizeof (panelize_but) / sizeof (panelize_but[0]);
 138         while (i--) {
 139             panelize_but[i].text = _(panelize_but[i].text);
 140             maxlen += str_term_width1 (panelize_but[i].text) + 5;
 141         }
 142         maxlen += 10;
 143
 144         i18n_flag = 1;
 145     }
 146     panelize_cols = max (panelize_cols, maxlen);
 147
 148     panelize_but[2].x =
 149         panelize_but[3].x + str_term_width1 (panelize_but[3].text) + 7;
 150     panelize_but[1].x =
 151         panelize_but[2].x + str_term_width1 (panelize_but[2].text) + 5;
 152     panelize_but[0].x =
 153         panelize_cols - str_term_width1 (panelize_but[0].text) - 8 - BX;
 154
 155 #endif                          /* ENABLE_NLS */
 156
 157     last_listitem = 0;
 158
 159     do_refresh ();
 160
 161     panelize_dlg =
 162         create_dlg (0, 0, 22, panelize_cols, dialog_colors,
 163                     panelize_callback, "[External panelize]",
 164                     _("External panelize"), DLG_CENTER | DLG_REVERSE);
 165
 166     for (i = 0; i < BUTTONS; i++)
 167         add_widget (panelize_dlg,
 168                     button_new (BY + panelize_but[i].y,
 169                                 BX + panelize_but[i].x,
 170                                 panelize_but[i].ret_cmd,
 171                                 panelize_but[i].flags,
 172                                 panelize_but[i].text, 0));
 173
 174     pname =
 175         input_new (UY + 14, UX, INPUT_COLOR, panelize_dlg->cols - 10, "",
 176                    "in", INPUT_COMPLETE_DEFAULT);
 177     add_widget (panelize_dlg, pname);
 178
 179     add_widget (panelize_dlg, label_new (UY + 13, UX, _("Command")));
 180
 181     /* get new listbox */
 182     l_panelize =
 183         listbox_new (UY + 1, UX + 1, 10, panelize_dlg->cols - 12, FALSE, NULL);
 184
 185     while (current) {
 186         listbox_add_item (l_panelize, LISTBOX_APPEND_AT_END, 0, current->label, current);
 187         current = current->next;
 188     }
 189
 190     /* add listbox to the dialogs */
 191     add_widget (panelize_dlg, l_panelize);
 192
 193     listbox_select_entry (l_panelize,
 194                           listbox_search_text (l_panelize,
 195                                                _("Other command")));
 196 }
 197
 198 static void panelize_done (void)
 199 {
 200     destroy_dlg (panelize_dlg);
 201     repaint_screen ();
 202 }
 203
 204 static void add2panelize (char *label, char *command)
 205 {
 206     struct panelize *current, *old;
 207
 208     old = NULL;
 209     current = panelize;
 210     while (current && strcmp (current->label, label) <= 0){
 211         old = current;
 212         current = current->next;
 213     }
 214
 215     if (old == NULL){
 216         panelize = g_new (struct panelize, 1);
 217         panelize->label = label;
 218         panelize->command = command;
 219         panelize->next = current;
 220     } else {
 221         struct panelize *new;
 222         new = g_new (struct panelize, 1);
 223         new->label = label;
 224         new->command = command;
 225         old->next = new;
 226         new->next = current;
 227     }
 228 }
 229
 230 static void
 231 add2panelize_cmd (void)
 232 {
 233     char *label;
 234
 235     if (pname->buffer && (*pname->buffer)) {
 236         label = input_dialog (_(" Add to external panelize "),
 237                 _(" Enter command label: "),
 238                 MC_HISTORY_FM_PANELIZE_ADD,
 239                               "");
 240         if (!label)
 241             return;
 242         if (!*label) {
 243             g_free (label);
 244             return;
 245         }
 246
 247         add2panelize (label, g_strdup (pname->buffer));
 248     }
 249 }
 250
 251 static void remove_from_panelize (struct panelize *entry)
 252 {
 253     if (strcmp (entry->label, _("Other command")) != 0) {
 254         if (entry == panelize) {
 255             panelize = panelize->next;
 256         } else {
 257             struct panelize *current = panelize;
 258             while (current && current->next != entry)
 259                 current = current->next;
 260             if (current) {
 261                 current->next = entry->next;
 262             }
 263         }
 264
 265         g_free (entry->label);
 266         g_free (entry->command);
 267         g_free (entry);
 268     }
 269 }
 270
 271 void
 272 external_panelize (void)
 273 {
 274     char *target = NULL;
 275
 276     if (!vfs_current_is_local ()){
 277         message (D_ERROR, MSG_ERROR,
 278                  _(" Cannot run external panelize in a non-local directory "));
 279         return;
 280     }
 281
 282     init_panelize ();
 283
 284     /* display file info */
 285     tty_setcolor (SELECTED_COLOR);
 286
 287     run_dlg (panelize_dlg);
 288
 289     switch (panelize_dlg->ret_value) {
 290     case B_CANCEL:
 291         break;
 292
 293     case B_ADD:
 294         add2panelize_cmd ();
 295         break;
 296
 297     case B_REMOVE:
 298     {
 299         struct panelize *entry;
 300
 301         listbox_get_current (l_panelize, NULL, (void **) &entry);
 302         remove_from_panelize (entry);
 303         break;
 304     }
 305
 306     case B_ENTER:
 307         target = pname->buffer;
 308         if (target != NULL && *target) {
 309             char *cmd = g_strdup (target);
 310             destroy_dlg (panelize_dlg);
 311             do_external_panelize (cmd);
 312             g_free (cmd);
 313             repaint_screen ();
 314             return;
 315         }
 316         break;
 317     }
 318
 319     panelize_done ();
 320 }
 321
 322 void load_panelize (void)
 323 {
 324     gchar       **profile_keys, **keys;
 325     gsize len;
 326     GIConv conv;
 327     GString *buffer;
 328
 329     conv = str_crt_conv_from ("UTF-8");
 330
 331     profile_keys = keys = mc_config_get_keys (mc_main_config, panelize_section,&len);
 332
 333     add2panelize (g_strdup (_("Other command")), g_strdup (""));
 334
 335     if (!profile_keys || *profile_keys == NULL){
 336         add2panelize (g_strdup (_("Find rejects after patching")), g_strdup ("find . -name \\*.rej -print"));
 337         add2panelize (g_strdup (_("Find *.orig after patching")), g_strdup ("find . -name \\*.orig -print"));
 338         add2panelize (g_strdup (_("Find SUID and SGID programs")), g_strdup ("find . \\( \\( -perm -04000 -a -perm +011 \\) -o \\( -perm -02000 -a -perm +01 \\) \\) -print"));
 339         return;
 340     }
 341
 342     while (*profile_keys){
 343
 344         if (utf8_display || conv == INVALID_CONV){
 345             buffer = g_string_new (*profile_keys);
 346         } else {
 347             buffer = g_string_new ("");
 348             if (str_convert (conv, *profile_keys, buffer) == ESTR_FAILURE)
 349             {
 350                 g_string_free(buffer, TRUE);
 351                 buffer = g_string_new (*profile_keys);
 352             }
 353         }
 354
 355         add2panelize (
 356                 g_string_free(buffer, FALSE),
 357                 mc_config_get_string(mc_main_config,panelize_section,*profile_keys,"")
 358         );
 359         profile_keys++;
 360     }
 361     g_strfreev(keys);
 362     str_close_conv (conv);
 363 }
 364
 365 void save_panelize (void)
 366 {
 367     struct panelize *current = panelize;
 368
 369     mc_config_del_group (mc_main_config, panelize_section);
 370     for (;current; current = current->next){
 371         if (strcmp (current->label, _("Other command")))
 372             mc_config_set_string(mc_main_config,
 373                                 panelize_section,
 374                                 current->label,
 375                                 current->command);
 376     }
 377     mc_config_save_file (mc_main_config, NULL);
 378 }
 379
 380 void done_panelize (void)
 381 {
 382     struct panelize *current = panelize;
 383     struct panelize *next;
 384
 385     for (; current; current = next){
 386         next = current->next;
 387         g_free (current->label);
 388         g_free (current->command);
 389         g_free (current);
 390     }
 391 }
 392
 393 static void do_external_panelize (char *command)
 394 {
 395     int status, link_to_dir, stale_link;
 396     int next_free = 0;
 397     struct stat st;
 398     dir_list *list = &current_panel->dir;
 399     char line [MC_MAXPATHLEN];
 400     char *name;
 401     FILE *external;
 402
 403     open_error_pipe ();
 404     external = popen (command, "r");
 405     if (!external){
 406         close_error_pipe (D_ERROR, _("Cannot invoke command."));
 407         return;
 408     }
 409     /* Clear the counters and the directory list */
 410     panel_clean_dir (current_panel);
 411
 412     while (1) {
 413         clearerr(external);
 414         if (fgets (line, MC_MAXPATHLEN, external) == NULL) {
 415             if (ferror(external) && errno == EINTR)
 416                 continue;
 417             else
 418                 break;
 419         }
 420         if (line[strlen(line)-1] == '\n')
 421             line[strlen(line)-1] = 0;
 422         if (strlen(line) < 1)
 423             continue;
 424         if (line [0] == '.' && line[1] == PATH_SEP)
 425             name = line + 2;
 426         else
 427             name = line;
 428         status = handle_path (list, name, &st, next_free, &link_to_dir,
 429             &stale_link);
 430         if (status == 0)
 431             continue;
 432         if (status == -1)
 433             break;
 434         list->list [next_free].fnamelen = strlen (name);
 435         list->list [next_free].fname = g_strdup (name);
 436         file_mark (current_panel, next_free, 0);
 437         list->list [next_free].f.link_to_dir = link_to_dir;
 438         list->list [next_free].f.stale_link = stale_link;
 439         list->list [next_free].f.dir_size_computed = 0;
 440         list->list [next_free].st = st;
 441         list->list[next_free].sort_key = NULL;
 442         list->list[next_free].second_sort_key = NULL;
 443         next_free++;
 444         if (!(next_free & 32))
 445             rotate_dash ();
 446     }
 447
 448     current_panel->is_panelized = 1;
 449     if (next_free){
 450         current_panel->count = next_free;
 451         if (list->list [0].fname [0] == PATH_SEP){
 452             strcpy (current_panel->cwd, PATH_SEP_STR);
 453             chdir (PATH_SEP_STR);
 454         }
 455     } else {
 456         current_panel->count = set_zero_dir (list) ? 1 : 0;
 457     }
 458     if (pclose (external) < 0)
 459         message (D_NORMAL, _("External panelize"), _("Pipe close failed"));
 460     close_error_pipe (D_NORMAL, NULL);
 461     try_to_select (current_panel, NULL);
 462     panel_re_sort (current_panel);
 463 }