src/editors.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  *
   5  * Author: John Ellis
   6  *
   7  * This software is released under the GNU General Public License (GNU GPL).
   8  * Please read the included file COPYING for more information.
   9  * This software comes with no warranty of any kind, use at your own risk!
  10  */
  11
  12
  13 #include "main.h"
  14 #include "editors.h"
  15
  16 #include "utilops.h"
  17 #include "ui_fileops.h"
  18 #include "ui_spinner.h"
  19 #include "ui_utildlg.h"
  20
  21 #include "filelist.h"
  22
  23 #include <errno.h>
  24
  25
  26 #define EDITOR_WINDOW_WIDTH 500
  27 #define EDITOR_WINDOW_HEIGHT 300
  28
  29 #define COMMAND_SHELL "/bin/sh"
  30 #define COMMAND_OPT  "-c"
  31
  32
  33 typedef struct _EditorVerboseData EditorVerboseData;
  34 struct _EditorVerboseData {
  35         GenericDialog *gd;
  36         GtkWidget *button_close;
  37         GtkWidget *button_stop;
  38         GtkWidget *text;
  39         GtkWidget *progress;
  40         GtkWidget *spinner;
  41 };
  42
  43 typedef struct _EditorData EditorData;
  44 struct _EditorData {
  45         gint flags;
  46         GPid pid;
  47         gchar *command_template;
  48         GList *list;
  49         gint count;
  50         gint total;
  51         gboolean stopping;
  52         EditorVerboseData *vd;
  53         EditorCallback callback;
  54         gpointer data;
  55 };
  56
  57
  58 static gchar *editor_slot_defaults[GQ_EDITOR_SLOTS * 2] = {
  59         N_("The Gimp"), "gimp-remote %{.cr2;.crw;.nef;.raw;*}f",
  60         N_("XV"), "xv %f",
  61         N_("Xpaint"), "xpaint %f",
  62         N_("UFraw"), "ufraw %{.cr2;.crw;.nef;.raw}p",
  63         N_("Add XMP sidecar"), "%vFILE=%{.cr2;.crw;.nef;.raw}p;XMP=`echo \"$FILE\"|sed -e 's|\\.[^.]*$|.xmp|'`; exiftool -tagsfromfile \"$FILE\" \"$XMP\"",
  64         NULL, NULL,
  65         NULL, NULL,
  66         NULL, NULL,
  67         N_("Rotate jpeg clockwise"), "%vif jpegtran -rotate 90 -copy all -outfile %{.jpg;.jpeg}p_tmp %{.jpg;.jpeg}p; then mv %{.jpg;.jpeg}p_tmp %{.jpg;.jpeg}p;else rm %{.jpg;.jpeg}p_tmp;fi",
  68         N_("Rotate jpeg counterclockwise"), "%vif jpegtran -rotate 270 -copy all -outfile %{.jpg;.jpeg}p_tmp %{.jpg;.jpeg}p; then mv %{.jpg;.jpeg}p_tmp %{.jpg;.jpeg}p;else rm %{.jpg;.jpeg}p_tmp;fi",
  69         /* special slots */
  70 #if 1
  71         /* for testing */
  72         N_("External Copy command"), "%vset -x;cp %p %d",
  73         N_("External Move command"), "%vset -x;mv %p %d",
  74         N_("External Rename command"), "%vset -x;mv %p %d",
  75         N_("External Delete command"), NULL,
  76         N_("External New Folder command"), NULL
  77 #else
  78         N_("External Copy command"), NULL,
  79         N_("External Move command"), NULL,
  80         N_("External Rename command"), NULL,
  81         N_("External Delete command"), NULL,
  82         N_("External New Folder command"), NULL
  83 #endif
  84 };
  85
  86 static void editor_verbose_window_progress(EditorData *ed, const gchar *text);
  87 static gint editor_command_next_start(EditorData *ed);
  88 static gint editor_command_next_finish(EditorData *ed, gint status);
  89 static gint editor_command_done(EditorData *ed);
  90
  91 /*
  92  *-----------------------------------------------------------------------------
  93  * external editor routines
  94  *-----------------------------------------------------------------------------
  95  */
  96
  97 void editor_reset_defaults(void)
  98 {
  99         gint i;
 100
 101         for (i = 0; i < GQ_EDITOR_SLOTS; i++)
 102                 {
 103                 g_free(options->editor_name[i]);
 104                 options->editor_name[i] = g_strdup(_(editor_slot_defaults[i * 2]));
 105                 g_free(options->editor_command[i]);
 106                 options->editor_command[i] = g_strdup(editor_slot_defaults[i * 2 + 1]);
 107                 }
 108 }
 109
 110 static void editor_verbose_data_free(EditorData *ed)
 111 {
 112         if (!ed->vd) return;
 113         g_free(ed->vd);
 114         ed->vd = NULL;
 115 }
 116
 117 static void editor_data_free(EditorData *ed)
 118 {
 119         editor_verbose_data_free(ed);
 120         g_free(ed->command_template);
 121         g_free(ed);
 122 }
 123
 124 static void editor_verbose_window_close(GenericDialog *gd, gpointer data)
 125 {
 126         EditorData *ed = data;
 127
 128         generic_dialog_close(gd);
 129         editor_verbose_data_free(ed);
 130         if (ed->pid == -1) editor_data_free(ed); /* the process has already terminated */
 131 }
 132
 133 static void editor_verbose_window_stop(GenericDialog *gd, gpointer data)
 134 {
 135         EditorData *ed = data;
 136         ed->stopping = TRUE;
 137         ed->count = 0;
 138         editor_verbose_window_progress(ed, _("stopping..."));
 139 }
 140
 141 static void editor_verbose_window_enable_close(EditorVerboseData *vd)
 142 {
 143         vd->gd->cancel_cb = editor_verbose_window_close;
 144
 145         spinner_set_interval(vd->spinner, -1);
 146         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 147         gtk_widget_set_sensitive(vd->button_close, TRUE);
 148 }
 149
 150 static EditorVerboseData *editor_verbose_window(EditorData *ed, const gchar *text)
 151 {
 152         EditorVerboseData *vd;
 153         GtkWidget *scrolled;
 154         GtkWidget *hbox;
 155         gchar *buf;
 156
 157         vd = g_new0(EditorVerboseData, 1);
 158
 159         vd->gd = file_util_gen_dlg(_("Edit command results"), GQ_WMCLASS, "editor_results",
 160                                    NULL, FALSE,
 161                                    NULL, ed);
 162         buf = g_strdup_printf(_("Output of %s"), text);
 163         generic_dialog_add_message(vd->gd, NULL, buf, NULL);
 164         g_free(buf);
 165         vd->button_stop = generic_dialog_add_button(vd->gd, GTK_STOCK_STOP, NULL,
 166                                                    editor_verbose_window_stop, FALSE);
 167         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 168         vd->button_close = generic_dialog_add_button(vd->gd, GTK_STOCK_CLOSE, NULL,
 169                                                     editor_verbose_window_close, TRUE);
 170         gtk_widget_set_sensitive(vd->button_close, FALSE);
 171
 172         scrolled = gtk_scrolled_window_new(NULL, NULL);
 173         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
 174         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled),
 175                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 176         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), scrolled, TRUE, TRUE, 5);
 177         gtk_widget_show(scrolled);
 178
 179         vd->text = gtk_text_view_new();
 180         gtk_text_view_set_editable(GTK_TEXT_VIEW(vd->text), FALSE);
 181         gtk_widget_set_size_request(vd->text, EDITOR_WINDOW_WIDTH, EDITOR_WINDOW_HEIGHT);
 182         gtk_container_add(GTK_CONTAINER(scrolled), vd->text);
 183         gtk_widget_show(vd->text);
 184
 185         hbox = gtk_hbox_new(FALSE, 0);
 186         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), hbox, FALSE, FALSE, 0);
 187         gtk_widget_show(hbox);
 188
 189         vd->progress = gtk_progress_bar_new();
 190         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(vd->progress), 0.0);
 191         gtk_box_pack_start(GTK_BOX(hbox), vd->progress, TRUE, TRUE, 0);
 192         gtk_widget_show(vd->progress);
 193
 194         vd->spinner = spinner_new(NULL, SPINNER_SPEED);
 195         gtk_box_pack_start(GTK_BOX(hbox), vd->spinner, FALSE, FALSE, 0);
 196         gtk_widget_show(vd->spinner);
 197
 198         gtk_widget_show(vd->gd->dialog);
 199
 200         ed->vd = vd;
 201         return vd;
 202 }
 203
 204 static void editor_verbose_window_fill(EditorVerboseData *vd, gchar *text, gint len)
 205 {
 206         GtkTextBuffer *buffer;
 207         GtkTextIter iter;
 208
 209         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(vd->text));
 210         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 211         gtk_text_buffer_insert(buffer, &iter, text, len);
 212 }
 213
 214 static void editor_verbose_window_progress(EditorData *ed, const gchar *text)
 215 {
 216         if (!ed->vd) return;
 217
 218         if (ed->total)
 219                 {
 220                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(ed->vd->progress), (double)ed->count / ed->total);
 221                 }
 222
 223         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(ed->vd->progress), (text) ? text : "");
 224 }
 225
 226 static gboolean editor_verbose_io_cb(GIOChannel *source, GIOCondition condition, gpointer data)
 227 {
 228         EditorData *ed = data;
 229         gchar buf[512];
 230         gsize count;
 231
 232         if (condition & G_IO_IN)
 233                 {
 234                 while (g_io_channel_read_chars(source, buf, sizeof(buf), &count, NULL) == G_IO_STATUS_NORMAL)
 235                         {
 236                         if (!g_utf8_validate(buf, count, NULL))
 237                                 {
 238                                 gchar *utf8;
 239
 240                                 utf8 = g_locale_to_utf8(buf, count, NULL, NULL, NULL);
 241                                 if (utf8)
 242                                         {
 243                                         editor_verbose_window_fill(ed->vd, utf8, -1);
 244                                         g_free(utf8);
 245                                         }
 246                                 else
 247                                         {
 248                                         editor_verbose_window_fill(ed->vd, "Error converting text to valid utf8\n", -1);
 249                                         }
 250                                 }
 251                         else
 252                                 {
 253                                 editor_verbose_window_fill(ed->vd, buf, count);
 254                                 }
 255                         }
 256                 }
 257
 258         if (condition & (G_IO_ERR | G_IO_HUP))
 259                 {
 260                 g_io_channel_shutdown(source, TRUE, NULL);
 261                 return FALSE;
 262                 }
 263
 264         return TRUE;
 265 }
 266
 267 typedef enum {
 268         PATH_FILE,
 269         PATH_DEST
 270 } PathType;
 271
 272
 273 static gchar *editor_command_path_parse(const FileData *fd, PathType type, const gchar *extensions)
 274 {
 275         GString *string;
 276         gchar *pathl;
 277         const gchar *p = NULL;
 278
 279         string = g_string_new("");
 280
 281         if (type == PATH_FILE)
 282                 {
 283                 GList *ext_list = filter_to_list(extensions);
 284                 GList *work = ext_list;
 285
 286                 if (!work)
 287                         p = fd->path;
 288                 else
 289                         {
 290                         while(work)
 291                                 {
 292                                 GList *work2;
 293                                 gchar *ext = work->data;
 294                                 work = work->next;
 295
 296                                 if (strcmp(ext, "*") == 0 ||
 297                                     strcasecmp(ext, fd->extension) == 0)
 298                                         {
 299                                         p = fd->path;
 300                                         break;
 301                                         }
 302
 303                                 work2 = fd->sidecar_files;
 304                                 while(work2)
 305                                         {
 306                                         FileData *sfd = work2->data;
 307                                         work2 = work2->next;
 308
 309                                         if (strcasecmp(ext, sfd->extension) == 0)
 310                                                 {
 311                                                 p = sfd->path;
 312                                                 break;
 313                                                 }
 314                                         }
 315                                 if (p) break;
 316                                 }
 317                         string_list_free(ext_list);
 318                         if (!p) return NULL;
 319                         }
 320                 }
 321         else if (type == PATH_DEST)
 322                 {
 323                 if (fd->change && fd->change->dest)
 324                         p = fd->change->dest;
 325                 else
 326                         p = "";
 327                 }
 328
 329         while (*p != '\0')
 330                 {
 331                 /* must escape \, ", `, and $ to avoid problems,
 332                  * we assume system shell supports bash-like escaping
 333                  */
 334                 if (strchr("\\\"`$", *p) != NULL)
 335                         {
 336                         string = g_string_append_c(string, '\\');
 337                         }
 338                 string = g_string_append_c(string, *p);
 339                 p++;
 340                 }
 341
 342         pathl = path_from_utf8(string->str);
 343         g_string_free(string, TRUE);
 344
 345         return pathl;
 346 }
 347
 348
 349 /*
 350  * The supported macros for editor commands:
 351  *
 352  *   %f   first occurence replaced by quoted sequence of filenames, command is run once.
 353  *        only one occurence of this macro is supported.
 354  *        ([ls %f] results in [ls "file1" "file2" ... "lastfile"])
 355  *   %p   command is run for each filename in turn, each instance replaced with single filename.
 356  *        multiple occurences of this macro is supported for complex shell commands.
 357  *        This macro will BLOCK THE APPLICATION until it completes, since command is run once
 358  *        for every file in syncronous order. To avoid blocking add the %v macro, below.
 359  *        ([ls %p] results in [ls "file1"], [ls "file2"] ... [ls "lastfile"])
 360  *   none if no macro is supplied, the result is equivalent to "command %f"
 361  *        ([ls] results in [ls "file1" "file2" ... "lastfile"])
 362  *
 363  *  Only one of the macros %f or %p may be used in a given commmand.
 364  *
 365  *   %v   must be the first two characters[1] in a command, causes a window to display
 366  *        showing the output of the command(s).
 367  *   %V   same as %v except in the case of %p only displays a window for multiple files,
 368  *        operating on a single file is suppresses the output dialog.
 369  *
 370  *   %w   must be first two characters in a command, presence will disable full screen
 371  *        from exiting upon invocation.
 372  *
 373  *
 374  * [1] Note: %v,%V may also be preceded by "%w".
 375  */
 376
 377
 378 gint editor_command_parse(const gchar *template, GList *list, gchar **output)
 379 {
 380         gint flags = 0;
 381         const gchar *p = template;
 382         GString *result = NULL;
 383         gchar *extensions = NULL;
 384
 385         if (output)
 386                 result = g_string_new("");
 387
 388         if (!template || template[0] == '\0')
 389                 {
 390                 flags |= EDITOR_ERROR_EMPTY;
 391                 goto err;
 392                 }
 393
 394
 395         /* global flags */
 396         while (*p == '%')
 397                 {
 398                 switch (*++p)
 399                         {
 400                         case 'w':
 401                                 flags |= EDITOR_KEEP_FS;
 402                                 p++;
 403                                 break;
 404                         case 'v':
 405                                 flags |= EDITOR_VERBOSE;
 406                                 p++;
 407                                 break;
 408                         case 'V':
 409                                 flags |= EDITOR_VERBOSE_MULTI;
 410                                 p++;
 411                                 break;
 412                         }
 413                 }
 414
 415         /* command */
 416
 417         while (*p)
 418                 {
 419                 if (*p != '%')
 420                         {
 421                         if (output) result = g_string_append_c(result, *p);
 422                         }
 423                 else /* *p == '%' */
 424                         {
 425                         extensions = NULL;
 426                         gchar *pathl = NULL;
 427
 428                         p++;
 429
 430                         /* for example "%f" or "%{.crw;.raw;.cr2}f" */
 431                         if (*p == '{')
 432                                 {
 433                                 gchar *end;
 434
 435                                 p++;
 436                                 end = strchr(p, '}');
 437                                 if (!end)
 438                                         {
 439                                         flags |= EDITOR_ERROR_SYNTAX;
 440                                         goto err;
 441                                         }
 442
 443                                 extensions = g_strndup(p, end - p);
 444                                 p = end + 1;
 445                                 }
 446
 447                         switch (*p)
 448                                 {
 449                                 case 'd':
 450                                         flags |= EDITOR_DEST;
 451                                 case 'p':
 452                                         flags |= EDITOR_FOR_EACH;
 453                                         if (flags & EDITOR_SINGLE_COMMAND)
 454                                                 {
 455                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 456                                                 goto err;
 457                                                 }
 458                                         if (output)
 459                                                 {
 460                                                 /* use the first file from the list */
 461                                                 if (!list || !list->data)
 462                                                         {
 463                                                         flags |= EDITOR_ERROR_NO_FILE;
 464                                                         goto err;
 465                                                         }
 466                                                 pathl = editor_command_path_parse((FileData *)list->data, (*p == 'd') ? PATH_DEST : PATH_FILE, extensions);
 467                                                 if (!pathl)
 468                                                         {
 469                                                         flags |= EDITOR_ERROR_NO_FILE;
 470                                                         goto err;
 471                                                         }
 472                                                 result = g_string_append_c(result, '"');
 473                                                 result = g_string_append(result, pathl);
 474                                                 g_free(pathl);
 475                                                 result = g_string_append_c(result, '"');
 476                                                 }
 477                                         break;
 478
 479                                 case 'f':
 480                                         flags |= EDITOR_SINGLE_COMMAND;
 481                                         if (flags & (EDITOR_FOR_EACH | EDITOR_DEST))
 482                                                 {
 483                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 484                                                 goto err;
 485                                                 }
 486
 487                                         if (output)
 488                                                 {
 489                                                 /* use whole list */
 490                                                 GList *work = list;
 491                                                 gboolean ok = FALSE;
 492
 493                                                 while (work)
 494                                                         {
 495                                                         FileData *fd = work->data;
 496                                                         pathl = editor_command_path_parse(fd, PATH_FILE, extensions);
 497
 498                                                         if (pathl)
 499                                                                 {
 500                                                                 ok = TRUE;
 501                                                                 if (work != list) g_string_append_c(result, ' ');
 502                                                                 result = g_string_append_c(result, '"');
 503                                                                 result = g_string_append(result, pathl);
 504                                                                 g_free(pathl);
 505                                                                 result = g_string_append_c(result, '"');
 506                                                                 }
 507                                                         work = work->next;
 508                                                         }
 509                                                 if (!ok)
 510                                                         {
 511                                                         flags |= EDITOR_ERROR_NO_FILE;
 512                                                         goto err;
 513                                                         }
 514                                                 }
 515                                         break;
 516                                 default:
 517                                         flags |= EDITOR_ERROR_SYNTAX;
 518                                         goto err;
 519                                 }
 520                         if (extensions) g_free(extensions);
 521                         extensions = NULL;
 522                         }
 523                 p++;
 524                 }
 525
 526         if (output) *output = g_string_free(result, FALSE);
 527         return flags;
 528
 529
 530 err:
 531         if (output)
 532                 {
 533                 g_string_free(result, TRUE);
 534                 *output = NULL;
 535                 }
 536         if (extensions) g_free(extensions);
 537         return flags;
 538 }
 539
 540 static void editor_child_exit_cb (GPid pid, gint status, gpointer data)
 541 {
 542         EditorData *ed = data;
 543         g_spawn_close_pid(pid);
 544         ed->pid = -1;
 545
 546         editor_command_next_finish(ed, status);
 547 }
 548
 549
 550 static gint editor_command_one(const gchar *template, GList *list, EditorData *ed)
 551 {
 552         gchar *command;
 553         FileData *fd = list->data;
 554         GPid pid;
 555         gint standard_output;
 556         gint standard_error;
 557         gboolean ok;
 558
 559         ed->pid = -1;
 560         ed->flags = editor_command_parse(template, list, &command);
 561
 562         ok = !(ed->flags & EDITOR_ERROR_MASK);
 563
 564         if (ok)
 565                 {
 566                 gchar *working_directory;
 567                 gchar *args[4];
 568
 569                 working_directory = remove_level_from_path(fd->path);
 570                 args[0] = COMMAND_SHELL;
 571                 args[1] = COMMAND_OPT;
 572                 args[2] = command;
 573                 args[3] = NULL;
 574
 575                 ok = g_spawn_async_with_pipes(working_directory, args, NULL,
 576                                       G_SPAWN_DO_NOT_REAP_CHILD, /* GSpawnFlags */
 577                                       NULL, NULL,
 578                                       &pid,
 579                                       NULL,
 580                                       ed->vd ? &standard_output : NULL,
 581                                       ed->vd ? &standard_error : NULL,
 582                                       NULL);
 583
 584                 g_free(working_directory);
 585
 586                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 587                 }
 588
 589         if (ok)
 590                 {
 591                 g_child_watch_add(pid, editor_child_exit_cb, ed);
 592                 ed->pid = pid;
 593                 }
 594
 595         if (ed->vd)
 596                 {
 597                 if (!ok)
 598                         {
 599                         gchar *buf;
 600
 601                         buf = g_strdup_printf(_("Failed to run command:\n%s\n"), template);
 602                         editor_verbose_window_fill(ed->vd, buf, strlen(buf));
 603                         g_free(buf);
 604
 605                         }
 606                 else
 607                         {
 608                         GIOChannel *channel_output;
 609                         GIOChannel *channel_error;
 610
 611                         channel_output = g_io_channel_unix_new(standard_output);
 612                         g_io_channel_set_flags(channel_output, G_IO_FLAG_NONBLOCK, NULL);
 613
 614                         g_io_add_watch_full(channel_output, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 615                                             editor_verbose_io_cb, ed, NULL);
 616                         g_io_channel_unref(channel_output);
 617
 618                         channel_error = g_io_channel_unix_new(standard_error);
 619                         g_io_channel_set_flags(channel_error, G_IO_FLAG_NONBLOCK, NULL);
 620
 621                         g_io_add_watch_full(channel_error, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 622                                             editor_verbose_io_cb, ed, NULL);
 623                         g_io_channel_unref(channel_error);
 624                         }
 625                 }
 626
 627         g_free(command);
 628
 629         return ed->flags & EDITOR_ERROR_MASK;
 630 }
 631
 632 static gint editor_command_next_start(EditorData *ed)
 633 {
 634         if (ed->vd) editor_verbose_window_fill(ed->vd, "\n", 1);
 635
 636         if (ed->list && ed->count < ed->total)
 637                 {
 638                 FileData *fd;
 639                 gint error;
 640
 641                 fd = ed->list->data;
 642
 643                 if (ed->vd)
 644                         {
 645                         editor_verbose_window_progress(ed, (ed->flags & EDITOR_FOR_EACH) ? fd->path : _("running..."));
 646                         }
 647                 ed->count++;
 648
 649                 error = editor_command_one(ed->command_template, ed->list, ed);
 650                 if (!error && ed->vd)
 651                         {
 652                         gtk_widget_set_sensitive(ed->vd->button_stop, (ed->list != NULL) );
 653                         if (ed->flags & EDITOR_FOR_EACH)
 654                                 {
 655                                 editor_verbose_window_fill(ed->vd, fd->path, strlen(fd->path));
 656                                 editor_verbose_window_fill(ed->vd, "\n", 1);
 657                                 }
 658                         }
 659
 660                 if (!error)
 661                         return 0;
 662                 else
 663                         /* command was not started, call the finish immediately */
 664                         return editor_command_next_finish(ed, 0);
 665                 }
 666
 667         /* everything is done */
 668         return editor_command_done(ed);
 669 }
 670
 671 static gint editor_command_next_finish(EditorData *ed, gint status)
 672 {
 673         gint cont = ed->stopping ? EDITOR_CB_SKIP : EDITOR_CB_CONTINUE;
 674
 675         if (status)
 676                 ed->flags |= EDITOR_ERROR_STATUS;
 677
 678         if (ed->flags & EDITOR_FOR_EACH)
 679                 {
 680                 /* handle the first element from the list */
 681                 GList *fd_element = ed->list;
 682
 683                 ed->list = g_list_remove_link(ed->list, fd_element);
 684                 if (ed->callback)
 685                         cont = ed->callback(ed->list ? ed : NULL, ed->flags, fd_element, ed->data);
 686                 filelist_free(fd_element);
 687                 }
 688         else
 689                 {
 690                 /* handle whole list */
 691                 if (ed->callback)
 692                         cont = ed->callback(NULL, ed->flags, ed->list, ed->data);
 693                 filelist_free(ed->list);
 694                 ed->list = NULL;
 695                 }
 696
 697         if (cont == EDITOR_CB_SUSPEND)
 698                 return ed->flags & EDITOR_ERROR_MASK;
 699         else if (cont == EDITOR_CB_SKIP)
 700                 return editor_command_done(ed);
 701         else
 702                 return editor_command_next_start(ed);
 703 }
 704
 705 static gint editor_command_done(EditorData *ed)
 706 {
 707         gint flags;
 708
 709         if (ed->vd)
 710                 {
 711                 const gchar *text;
 712
 713                 if (ed->count == ed->total)
 714                         {
 715                         text = _("done");
 716                         }
 717                 else
 718                         {
 719                         text = _("stopped by user");
 720                         }
 721                 editor_verbose_window_progress(ed, text);
 722                 editor_verbose_window_enable_close(ed->vd);
 723                 }
 724
 725         /* free the not-handled items */
 726         if (ed->list)
 727                 {
 728                 ed->flags |= EDITOR_ERROR_SKIPPED;
 729                 if (ed->callback) ed->callback(NULL, ed->flags, ed->list, ed->data);
 730                 filelist_free(ed->list);
 731                 ed->list = NULL;
 732                 }
 733
 734         ed->count = 0;
 735
 736         flags = ed->flags & EDITOR_ERROR_MASK;
 737
 738         if (!ed->vd) editor_data_free(ed);
 739
 740         return flags;
 741 }
 742
 743 void editor_resume(gpointer ed)
 744 {
 745         editor_command_next_start(ed);
 746 }
 747
 748 void editor_skip(gpointer ed)
 749 {
 750         editor_command_done(ed);
 751 }
 752
 753 static gint editor_command_start(const gchar *template, const gchar *text, GList *list, EditorCallback cb, gpointer data)
 754 {
 755         EditorData *ed;
 756         gint flags = editor_command_parse(template, NULL, NULL);
 757
 758         if (flags & EDITOR_ERROR_MASK) return flags & EDITOR_ERROR_MASK;
 759
 760         ed = g_new0(EditorData, 1);
 761         ed->list = filelist_copy(list);
 762         ed->flags = flags;
 763         ed->command_template = g_strdup(template);
 764         ed->total = (flags & EDITOR_SINGLE_COMMAND) ? 1 : g_list_length(list);
 765         ed->count = 0;
 766         ed->stopping = FALSE;
 767         ed->callback = cb;
 768         ed->data =  data;
 769
 770         if ((flags & EDITOR_VERBOSE_MULTI) && list && list->next)
 771                 flags |= EDITOR_VERBOSE;
 772
 773         if (flags & EDITOR_VERBOSE)
 774                 editor_verbose_window(ed, text);
 775
 776         editor_command_next_start(ed);
 777         /* errors from editor_command_next_start will be handled via callback */
 778         return flags & EDITOR_ERROR_MASK;
 779 }
 780
 781 static gint is_valid_editor_command(gint n)
 782 {
 783         return (n >= 0 && n < GQ_EDITOR_SLOTS
 784                 && options->editor_command[n]
 785                 && strlen(options->editor_command[n]) > 0);
 786 }
 787
 788 gint start_editor_from_filelist_full(gint n, GList *list, EditorCallback cb, gpointer data)
 789 {
 790         gchar *command;
 791         gint error;
 792
 793         if (!list) return FALSE;
 794         if (!is_valid_editor_command(n)) return FALSE;
 795
 796         command = g_locale_from_utf8(options->editor_command[n], -1, NULL, NULL, NULL);
 797         error = editor_command_start(command, options->editor_name[n], list, cb, data);
 798         g_free(command);
 799         return error;
 800 }
 801
 802 gint start_editor_from_filelist(gint n, GList *list)
 803 {
 804         return start_editor_from_filelist_full(n, list,  NULL, NULL);
 805 }
 806
 807 gint start_editor_from_file_full(gint n, FileData *fd, EditorCallback cb, gpointer data)
 808 {
 809         GList *list;
 810         gint error;
 811
 812         if (!fd) return FALSE;
 813
 814         list = g_list_append(NULL, fd);
 815         error = start_editor_from_filelist_full(n, list, cb, data);
 816         g_list_free(list);
 817         return error;
 818 }
 819
 820 gint start_editor_from_file(gint n, FileData *fd)
 821 {
 822         return start_editor_from_file_full(n, fd, NULL, NULL);
 823 }
 824
 825 gint editor_window_flag_set(gint n)
 826 {
 827         if (!is_valid_editor_command(n)) return TRUE;
 828
 829         return (editor_command_parse(options->editor_command[n], NULL, NULL) & EDITOR_KEEP_FS);
 830 }
 831
 832 const gchar *editor_get_error_str(gint flags)
 833 {
 834         if (flags & EDITOR_ERROR_EMPTY) return _("Editor template is empty.");
 835         if (flags & EDITOR_ERROR_SYNTAX) return _("Editor template has incorrect syntax.");
 836         if (flags & EDITOR_ERROR_INCOMPATIBLE) return _("Editor template uses incompatible macros.");
 837         if (flags & EDITOR_ERROR_NO_FILE) return _("Can't find matching file type.");
 838         if (flags & EDITOR_ERROR_CANT_EXEC) return _("Can't execute external editor.");
 839         if (flags & EDITOR_ERROR_STATUS) return _("External editor returned error status.");
 840         if (flags & EDITOR_ERROR_SKIPPED) return _("File was skipped.");
 841         return _("Unknown error.");
 842 }