Fix assumptions of "dir.list->len == 0".
[midnight-commander.git] / src / filemanager / panelize.c
blob336825665e070b3a24932bc71b5c9744c666e039
1 /*
2 External panelize
4 Copyright (C) 1995-2017
5 Free Software Foundation, Inc.
7 Written by:
8 Janne Kukonlehto, 1995
9 Jakub Jelinek, 1995
11 This file is part of the Midnight Commander.
13 The Midnight Commander is free software: you can redistribute it
14 and/or modify it under the terms of the GNU General Public License as
15 published by the Free Software Foundation, either version 3 of the License,
16 or (at your option) any later version.
18 The Midnight Commander is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
23 You should have received a copy of the GNU General Public License
24 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 /** \file panelize.c
28 * \brief Source: External panelization module
31 #include <config.h>
33 #include <errno.h>
34 #include <stdio.h>
35 #include <string.h>
36 #include <sys/types.h>
37 #include <sys/stat.h>
38 #include <unistd.h>
40 #include "lib/global.h"
42 #include "lib/skin.h"
43 #include "lib/vfs/vfs.h"
44 #include "lib/mcconfig.h" /* Load/save directories panelize */
45 #include "lib/strutil.h"
46 #include "lib/util.h"
47 #include "lib/widget.h"
49 #include "src/setup.h" /* For profile_bname */
50 #include "src/history.h"
52 #include "dir.h"
53 #include "midnight.h" /* current_panel */
54 #include "layout.h" /* rotate_dash() */
55 #include "panel.h" /* WPanel */
57 #include "panelize.h"
59 /*** global variables ****************************************************************************/
61 /*** file scope macro definitions ****************************************************************/
63 #define UX 3
64 #define UY 2
66 #define B_ADD B_USER
67 #define B_REMOVE (B_USER + 1)
69 /*** file scope type declarations ****************************************************************/
71 /*** file scope variables ************************************************************************/
73 static WListbox *l_panelize;
74 static WDialog *panelize_dlg;
75 static int last_listitem;
76 static WInput *pname;
78 static const char *panelize_section = "Panelize";
80 /* Directory panelize */
81 static struct panelize
83 char *command;
84 char *label;
85 struct panelize *next;
86 } *panelize = NULL;
88 /* --------------------------------------------------------------------------------------------- */
89 /*** file scope functions ************************************************************************/
90 /* --------------------------------------------------------------------------------------------- */
92 static void
93 update_command (void)
95 if (l_panelize->pos != last_listitem)
97 struct panelize *data = NULL;
99 last_listitem = l_panelize->pos;
100 listbox_get_current (l_panelize, NULL, (void **) &data);
101 input_assign_text (pname, data->command);
102 pname->point = 0;
103 input_update (pname, TRUE);
107 /* --------------------------------------------------------------------------------------------- */
109 static cb_ret_t
110 panelize_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
112 switch (msg)
114 case MSG_INIT:
115 case MSG_NOTIFY: /* MSG_NOTIFY is fired by the listbox to tell us the item has changed. */
116 update_command ();
117 return MSG_HANDLED;
119 default:
120 return dlg_default_callback (w, sender, msg, parm, data);
124 /* --------------------------------------------------------------------------------------------- */
126 static void
127 init_panelize (void)
129 struct
131 int ret_cmd;
132 button_flags_t flags;
133 const char *text;
134 } panelize_but[] =
136 /* *INDENT-OFF* */
137 { B_ENTER, DEFPUSH_BUTTON, N_("Pane&lize") },
138 { B_REMOVE, NORMAL_BUTTON, N_("&Remove") },
139 { B_ADD, NORMAL_BUTTON, N_("&Add new") },
140 { B_CANCEL, NORMAL_BUTTON, N_("&Cancel") }
141 /* *INDENT-ON* */
144 size_t i;
145 int blen;
146 int panelize_cols;
147 struct panelize *current;
148 int x, y;
150 last_listitem = 0;
152 do_refresh ();
154 i = G_N_ELEMENTS (panelize_but);
155 blen = i - 1; /* gaps between buttons */
156 while (i-- != 0)
158 #ifdef ENABLE_NLS
159 panelize_but[i].text = _(panelize_but[i].text);
160 #endif
161 blen += str_term_width1 (panelize_but[i].text) + 3 + 1;
162 if (panelize_but[i].flags == DEFPUSH_BUTTON)
163 blen += 2;
166 panelize_cols = COLS - 6;
167 panelize_cols = MAX (panelize_cols, blen + 4);
169 panelize_dlg =
170 dlg_create (TRUE, 0, 0, 20, panelize_cols, WPOS_CENTER, FALSE, dialog_colors,
171 panelize_callback, NULL, "[External panelize]", _("External panelize"));
173 /* add listbox to the dialogs */
174 y = UY;
175 add_widget (panelize_dlg, groupbox_new (y++, UX, 12, panelize_cols - UX * 2, ""));
177 l_panelize = listbox_new (y, UX + 1, 10, panelize_cols - UX * 2 - 2, FALSE, NULL);
178 for (current = panelize; current != NULL; current = current->next)
179 listbox_add_item (l_panelize, LISTBOX_APPEND_AT_END, 0, current->label, current, FALSE);
180 listbox_select_entry (l_panelize, listbox_search_text (l_panelize, _("Other command")));
181 add_widget (panelize_dlg, l_panelize);
183 y += WIDGET (l_panelize)->lines + 1;
184 add_widget (panelize_dlg, label_new (y++, UX, _("Command")));
185 pname =
186 input_new (y++, UX, input_colors, panelize_cols - UX * 2, "", "in",
187 INPUT_COMPLETE_FILENAMES | INPUT_COMPLETE_HOSTNAMES | INPUT_COMPLETE_COMMANDS |
188 INPUT_COMPLETE_VARIABLES | INPUT_COMPLETE_USERNAMES | INPUT_COMPLETE_CD |
189 INPUT_COMPLETE_SHELL_ESC);
190 add_widget (panelize_dlg, pname);
194 add_widget (panelize_dlg, hline_new (y++, -1, -1));
196 x = (panelize_cols - blen) / 2;
197 for (i = 0; i < G_N_ELEMENTS (panelize_but); i++)
199 WButton *b;
201 b = button_new (y, x,
202 panelize_but[i].ret_cmd, panelize_but[i].flags, panelize_but[i].text, NULL);
203 add_widget (panelize_dlg, b);
205 x += button_get_len (b) + 1;
208 widget_select (WIDGET (l_panelize));
211 /* --------------------------------------------------------------------------------------------- */
213 static void
214 panelize_done (void)
216 dlg_destroy (panelize_dlg);
217 repaint_screen ();
220 /* --------------------------------------------------------------------------------------------- */
222 static void
223 add2panelize (char *label, char *command)
225 struct panelize *current, *old;
227 old = NULL;
228 current = panelize;
229 while (current && strcmp (current->label, label) <= 0)
231 old = current;
232 current = current->next;
235 if (old == NULL)
237 panelize = g_new (struct panelize, 1);
238 panelize->label = label;
239 panelize->command = command;
240 panelize->next = current;
242 else
244 struct panelize *new;
245 new = g_new (struct panelize, 1);
246 new->label = label;
247 new->command = command;
248 old->next = new;
249 new->next = current;
253 /* --------------------------------------------------------------------------------------------- */
255 static void
256 add2panelize_cmd (void)
258 if (!input_is_empty (pname))
260 char *label;
262 label = input_dialog (_("Add to external panelize"),
263 _("Enter command label:"), MC_HISTORY_FM_PANELIZE_ADD, "",
264 INPUT_COMPLETE_NONE);
265 if (label == NULL || *label == '\0')
266 g_free (label);
267 else
268 add2panelize (label, g_strdup (pname->buffer));
272 /* --------------------------------------------------------------------------------------------- */
274 static void
275 remove_from_panelize (struct panelize *entry)
277 if (strcmp (entry->label, _("Other command")) != 0)
279 if (entry == panelize)
281 panelize = panelize->next;
283 else
285 struct panelize *current = panelize;
286 while (current && current->next != entry)
287 current = current->next;
288 if (current)
290 current->next = entry->next;
294 g_free (entry->label);
295 g_free (entry->command);
296 g_free (entry);
300 /* --------------------------------------------------------------------------------------------- */
302 static void
303 do_external_panelize (char *command)
305 int link_to_dir, stale_link;
306 struct stat st;
307 dir_list *list = &current_panel->dir;
308 char line[MC_MAXPATHLEN];
309 char *name;
310 FILE *external;
312 open_error_pipe ();
313 external = popen (command, "r");
314 if (!external)
316 close_error_pipe (D_ERROR, _("Cannot invoke command."));
317 return;
319 /* Clear the counters and the directory list */
320 panel_clean_dir (current_panel);
322 panelize_change_root (current_panel->cwd_vpath);
324 dir_list_init (list);
326 while (TRUE)
328 clearerr (external);
329 if (fgets (line, sizeof (line), external) == NULL)
331 if (ferror (external) && errno == EINTR)
332 continue;
333 else
334 break;
336 if (line[strlen (line) - 1] == '\n')
337 line[strlen (line) - 1] = 0;
338 if (strlen (line) < 1)
339 continue;
340 if (line[0] == '.' && IS_PATH_SEP (line[1]))
341 name = line + 2;
342 else
343 name = line;
345 if (!handle_path (name, &st, &link_to_dir, &stale_link))
346 continue;
348 if (!dir_list_append (list, name, &st, link_to_dir != 0, stale_link != 0))
349 break;
351 file_mark (current_panel, list->len - 1, 0);
353 if ((list->len & 31) == 0)
354 rotate_dash (TRUE);
357 current_panel->is_panelized = TRUE;
359 if (list->len > 1 && IS_PATH_SEP (list->list[1].fname[0]))
361 vfs_path_t *vpath_root;
362 int ret;
364 vpath_root = vfs_path_from_str (PATH_SEP_STR);
365 panel_set_cwd (current_panel, vpath_root);
366 ret = mc_chdir (vpath_root);
367 vfs_path_free (vpath_root);
369 (void) ret;
372 if (pclose (external) < 0)
373 message (D_NORMAL, _("External panelize"), _("Pipe close failed"));
374 close_error_pipe (D_NORMAL, NULL);
375 try_to_select (current_panel, NULL);
376 panel_re_sort (current_panel);
377 rotate_dash (FALSE);
380 /* --------------------------------------------------------------------------------------------- */
382 static void
383 do_panelize_cd (WPanel * panel)
385 int i;
386 dir_list *list;
387 gboolean panelized_same;
389 dir_list_clean (&panel->dir);
390 if (panelized_panel.root_vpath == NULL)
391 panelize_change_root (current_panel->cwd_vpath);
393 if (panelized_panel.list.len < 1)
394 dir_list_init (&panelized_panel.list);
395 else if (panelized_panel.list.len > panel->dir.size)
396 dir_list_grow (&panel->dir, panelized_panel.list.len - panel->dir.size);
398 list = &panel->dir;
399 list->len = panelized_panel.list.len;
400 panel->is_panelized = TRUE;
402 panelized_same = vfs_path_equal (panelized_panel.root_vpath, panel->cwd_vpath);
404 for (i = 0; i < panelized_panel.list.len; i++)
406 if (panelized_same || DIR_IS_DOTDOT (panelized_panel.list.list[i].fname))
408 list->list[i].fnamelen = panelized_panel.list.list[i].fnamelen;
409 list->list[i].fname = g_strndup (panelized_panel.list.list[i].fname,
410 panelized_panel.list.list[i].fnamelen);
412 else
414 vfs_path_t *tmp_vpath;
415 const char *fname;
417 tmp_vpath =
418 vfs_path_append_new (panelized_panel.root_vpath, panelized_panel.list.list[i].fname,
419 (char *) NULL);
420 fname = vfs_path_as_str (tmp_vpath);
421 list->list[i].fnamelen = strlen (fname);
422 list->list[i].fname = g_strndup (fname, list->list[i].fnamelen);
423 vfs_path_free (tmp_vpath);
425 list->list[i].f.link_to_dir = panelized_panel.list.list[i].f.link_to_dir;
426 list->list[i].f.stale_link = panelized_panel.list.list[i].f.stale_link;
427 list->list[i].f.dir_size_computed = panelized_panel.list.list[i].f.dir_size_computed;
428 list->list[i].f.marked = panelized_panel.list.list[i].f.marked;
429 list->list[i].st = panelized_panel.list.list[i].st;
430 list->list[i].sort_key = panelized_panel.list.list[i].sort_key;
431 list->list[i].second_sort_key = panelized_panel.list.list[i].second_sort_key;
433 try_to_select (panel, NULL);
436 /* --------------------------------------------------------------------------------------------- */
437 /*** public functions ****************************************************************************/
438 /* --------------------------------------------------------------------------------------------- */
441 * Change root directory of panelized content.
442 * @param new_root - object with new path.
444 void
445 panelize_change_root (const vfs_path_t * new_root)
447 vfs_path_free (panelized_panel.root_vpath);
448 panelized_panel.root_vpath = vfs_path_clone (new_root);
451 /* --------------------------------------------------------------------------------------------- */
453 void
454 panelize_save_panel (WPanel * panel)
456 int i;
457 dir_list *list = &panel->dir;
459 panelize_change_root (current_panel->cwd_vpath);
461 if (panelized_panel.list.len > 0)
462 dir_list_clean (&panelized_panel.list);
463 if (panel->dir.len == 0)
464 return;
466 if (panel->dir.len > panelized_panel.list.size)
467 dir_list_grow (&panelized_panel.list, panel->dir.len - panelized_panel.list.size);
468 panelized_panel.list.len = panel->dir.len;
470 for (i = 0; i < panel->dir.len; i++)
472 panelized_panel.list.list[i].fnamelen = list->list[i].fnamelen;
473 panelized_panel.list.list[i].fname =
474 g_strndup (list->list[i].fname, list->list[i].fnamelen);
475 panelized_panel.list.list[i].f.link_to_dir = list->list[i].f.link_to_dir;
476 panelized_panel.list.list[i].f.stale_link = list->list[i].f.stale_link;
477 panelized_panel.list.list[i].f.dir_size_computed = list->list[i].f.dir_size_computed;
478 panelized_panel.list.list[i].f.marked = list->list[i].f.marked;
479 panelized_panel.list.list[i].st = list->list[i].st;
480 panelized_panel.list.list[i].sort_key = list->list[i].sort_key;
481 panelized_panel.list.list[i].second_sort_key = list->list[i].second_sort_key;
485 /* --------------------------------------------------------------------------------------------- */
487 void
488 cd_panelize_cmd (void)
490 if (!SELECTED_IS_PANEL)
491 set_display_type (MENU_PANEL_IDX, view_listing);
493 do_panelize_cd (PANEL (get_panel_widget (MENU_PANEL_IDX)));
496 /* --------------------------------------------------------------------------------------------- */
498 void
499 external_panelize (void)
501 if (!vfs_current_is_local ())
503 message (D_ERROR, MSG_ERROR, _("Cannot run external panelize in a non-local directory"));
504 return;
507 init_panelize ();
509 /* display file info */
510 tty_setcolor (SELECTED_COLOR);
512 switch (dlg_run (panelize_dlg))
514 case B_CANCEL:
515 break;
517 case B_ADD:
518 add2panelize_cmd ();
519 break;
521 case B_REMOVE:
523 struct panelize *entry;
525 listbox_get_current (l_panelize, NULL, (void **) &entry);
526 remove_from_panelize (entry);
527 break;
530 case B_ENTER:
531 if (!input_is_empty (pname))
533 char *cmd;
535 cmd = g_strdup (pname->buffer);
536 dlg_destroy (panelize_dlg);
537 do_external_panelize (cmd);
538 g_free (cmd);
539 repaint_screen ();
540 return;
542 break;
544 default:
545 break;
548 panelize_done ();
551 /* --------------------------------------------------------------------------------------------- */
553 void
554 load_panelize (void)
556 char **keys;
558 keys = mc_config_get_keys (mc_global.main_config, panelize_section, NULL);
560 add2panelize (g_strdup (_("Other command")), g_strdup (""));
562 if (*keys == NULL)
564 add2panelize (g_strdup (_("Modified git files")), g_strdup ("git ls-files --modified"));
565 add2panelize (g_strdup (_("Find rejects after patching")),
566 g_strdup ("find . -name \\*.rej -print"));
567 add2panelize (g_strdup (_("Find *.orig after patching")),
568 g_strdup ("find . -name \\*.orig -print"));
569 add2panelize (g_strdup (_("Find SUID and SGID programs")),
570 g_strdup
571 ("find . \\( \\( -perm -04000 -a -perm /011 \\) -o \\( -perm -02000 -a -perm /01 \\) \\) -print"));
573 else
575 GIConv conv;
576 char **profile_keys;
578 conv = str_crt_conv_from ("UTF-8");
580 for (profile_keys = keys; *profile_keys != NULL; profile_keys++)
582 GString *buffer;
584 if (mc_global.utf8_display || conv == INVALID_CONV)
585 buffer = g_string_new (*profile_keys);
586 else
588 buffer = g_string_new ("");
589 if (str_convert (conv, *profile_keys, buffer) == ESTR_FAILURE)
590 g_string_assign (buffer, *profile_keys);
593 add2panelize (g_string_free (buffer, FALSE),
594 mc_config_get_string (mc_global.main_config, panelize_section,
595 *profile_keys, ""));
598 str_close_conv (conv);
601 g_strfreev (keys);
604 /* --------------------------------------------------------------------------------------------- */
606 void
607 save_panelize (void)
609 struct panelize *current = panelize;
611 mc_config_del_group (mc_global.main_config, panelize_section);
612 for (; current; current = current->next)
614 if (strcmp (current->label, _("Other command")))
615 mc_config_set_string (mc_global.main_config,
616 panelize_section, current->label, current->command);
620 /* --------------------------------------------------------------------------------------------- */
622 void
623 done_panelize (void)
625 struct panelize *current = panelize;
626 struct panelize *next;
628 for (; current; current = next)
630 next = current->next;
631 g_free (current->label);
632 g_free (current->command);
633 g_free (current);
637 /* --------------------------------------------------------------------------------------------- */