src/editors.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13
  14 #include "main.h"
  15 #include "editors.h"
  16
  17 #include "utilops.h"
  18 #include "ui_fileops.h"
  19 #include "ui_spinner.h"
  20 #include "ui_utildlg.h"
  21
  22 #include "filelist.h"
  23
  24 #include <errno.h>
  25
  26
  27 #define EDITOR_WINDOW_WIDTH 500
  28 #define EDITOR_WINDOW_HEIGHT 300
  29
  30 #define COMMAND_SHELL "/bin/sh"
  31 #define COMMAND_OPT  "-c"
  32
  33
  34 typedef struct _EditorVerboseData EditorVerboseData;
  35 struct _EditorVerboseData {
  36         GenericDialog *gd;
  37         GtkWidget *button_close;
  38         GtkWidget *button_stop;
  39         GtkWidget *text;
  40         GtkWidget *progress;
  41         GtkWidget *spinner;
  42 };
  43
  44 typedef struct _EditorData EditorData;
  45 struct _EditorData {
  46         gint flags;
  47         GPid pid;
  48         gchar *command_template;
  49         GList *list;
  50         gint count;
  51         gint total;
  52         gboolean stopping;
  53         EditorVerboseData *vd;
  54         EditorCallback callback;
  55         gpointer data;
  56 };
  57
  58
  59 static gchar *editor_slot_defaults[GQ_EDITOR_SLOTS * 2] = {
  60         N_("The Gimp"), "gimp-remote %{.cr2;.crw;.nef;.raw;*}f",
  61         N_("XV"), "xv %f",
  62         N_("Xpaint"), "xpaint %f",
  63         N_("UFraw"), "ufraw %{.cr2;.crw;.nef;.raw}p",
  64         N_("Add XMP sidecar"), "%vFILE=%{.cr2;.crw;.nef;.raw}p;XMP=`echo \"$FILE\"|sed -e 's|\\.[^.]*$|.xmp|'`; exiftool -tagsfromfile \"$FILE\" \"$XMP\"",
  65         NULL, NULL,
  66         NULL, NULL,
  67         NULL, NULL,
  68         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",
  69         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",
  70         /* special slots */
  71 #if 1
  72         /* for testing */
  73         N_("External Copy command"), "%vset -x;cp %p %d",
  74         N_("External Move command"), "%vset -x;mv %p %d",
  75         N_("External Rename command"), "%vset -x;mv %p %d",
  76         N_("External Delete command"), NULL,
  77         N_("External New Folder command"), NULL
  78 #else
  79         N_("External Copy command"), NULL,
  80         N_("External Move command"), NULL,
  81         N_("External Rename command"), NULL,
  82         N_("External Delete command"), NULL,
  83         N_("External New Folder command"), NULL
  84 #endif
  85 };
  86
  87 static void editor_verbose_window_progress(EditorData *ed, const gchar *text);
  88 static gint editor_command_next_start(EditorData *ed);
  89 static gint editor_command_next_finish(EditorData *ed, gint status);
  90 static gint editor_command_done(EditorData *ed);
  91
  92 /*
  93  *-----------------------------------------------------------------------------
  94  * external editor routines
  95  *-----------------------------------------------------------------------------
  96  */
  97
  98 void editor_reset_defaults(void)
  99 {
 100         gint i;
 101
 102         for (i = 0; i < GQ_EDITOR_SLOTS; i++)
 103                 {
 104                 g_free(options->editor_name[i]);
 105                 options->editor_name[i] = g_strdup(_(editor_slot_defaults[i * 2]));
 106                 g_free(options->editor_command[i]);
 107                 options->editor_command[i] = g_strdup(editor_slot_defaults[i * 2 + 1]);
 108                 }
 109 }
 110
 111 static void editor_verbose_data_free(EditorData *ed)
 112 {
 113         if (!ed->vd) return;
 114         g_free(ed->vd);
 115         ed->vd = NULL;
 116 }
 117
 118 static void editor_data_free(EditorData *ed)
 119 {
 120         editor_verbose_data_free(ed);
 121         g_free(ed->command_template);
 122         g_free(ed);
 123 }
 124
 125 static void editor_verbose_window_close(GenericDialog *gd, gpointer data)
 126 {
 127         EditorData *ed = data;
 128
 129         generic_dialog_close(gd);
 130         editor_verbose_data_free(ed);
 131         if (ed->pid == -1) editor_data_free(ed); /* the process has already terminated */
 132 }
 133
 134 static void editor_verbose_window_stop(GenericDialog *gd, gpointer data)
 135 {
 136         EditorData *ed = data;
 137         ed->stopping = TRUE;
 138         ed->count = 0;
 139         editor_verbose_window_progress(ed, _("stopping..."));
 140 }
 141
 142 static void editor_verbose_window_enable_close(EditorVerboseData *vd)
 143 {
 144         vd->gd->cancel_cb = editor_verbose_window_close;
 145
 146         spinner_set_interval(vd->spinner, -1);
 147         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 148         gtk_widget_set_sensitive(vd->button_close, TRUE);
 149 }
 150
 151 static EditorVerboseData *editor_verbose_window(EditorData *ed, const gchar *text)
 152 {
 153         EditorVerboseData *vd;
 154         GtkWidget *scrolled;
 155         GtkWidget *hbox;
 156         gchar *buf;
 157
 158         vd = g_new0(EditorVerboseData, 1);
 159
 160         vd->gd = file_util_gen_dlg(_("Edit command results"), GQ_WMCLASS, "editor_results",
 161                                    NULL, FALSE,
 162                                    NULL, ed);
 163         buf = g_strdup_printf(_("Output of %s"), text);
 164         generic_dialog_add_message(vd->gd, NULL, buf, NULL);
 165         g_free(buf);
 166         vd->button_stop = generic_dialog_add_button(vd->gd, GTK_STOCK_STOP, NULL,
 167                                                    editor_verbose_window_stop, FALSE);
 168         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 169         vd->button_close = generic_dialog_add_button(vd->gd, GTK_STOCK_CLOSE, NULL,
 170                                                     editor_verbose_window_close, TRUE);
 171         gtk_widget_set_sensitive(vd->button_close, FALSE);
 172
 173         scrolled = gtk_scrolled_window_new(NULL, NULL);
 174         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
 175         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled),
 176                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 177         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), scrolled, TRUE, TRUE, 5);
 178         gtk_widget_show(scrolled);
 179
 180         vd->text = gtk_text_view_new();
 181         gtk_text_view_set_editable(GTK_TEXT_VIEW(vd->text), FALSE);
 182         gtk_widget_set_size_request(vd->text, EDITOR_WINDOW_WIDTH, EDITOR_WINDOW_HEIGHT);
 183         gtk_container_add(GTK_CONTAINER(scrolled), vd->text);
 184         gtk_widget_show(vd->text);
 185
 186         hbox = gtk_hbox_new(FALSE, 0);
 187         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), hbox, FALSE, FALSE, 0);
 188         gtk_widget_show(hbox);
 189
 190         vd->progress = gtk_progress_bar_new();
 191         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(vd->progress), 0.0);
 192         gtk_box_pack_start(GTK_BOX(hbox), vd->progress, TRUE, TRUE, 0);
 193         gtk_widget_show(vd->progress);
 194
 195         vd->spinner = spinner_new(NULL, SPINNER_SPEED);
 196         gtk_box_pack_start(GTK_BOX(hbox), vd->spinner, FALSE, FALSE, 0);
 197         gtk_widget_show(vd->spinner);
 198
 199         gtk_widget_show(vd->gd->dialog);
 200
 201         ed->vd = vd;
 202         return vd;
 203 }
 204
 205 static void editor_verbose_window_fill(EditorVerboseData *vd, gchar *text, gint len)
 206 {
 207         GtkTextBuffer *buffer;
 208         GtkTextIter iter;
 209
 210         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(vd->text));
 211         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 212         gtk_text_buffer_insert(buffer, &iter, text, len);
 213 }
 214
 215 static void editor_verbose_window_progress(EditorData *ed, const gchar *text)
 216 {
 217         if (!ed->vd) return;
 218
 219         if (ed->total)
 220                 {
 221                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(ed->vd->progress), (double)ed->count / ed->total);
 222                 }
 223
 224         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(ed->vd->progress), (text) ? text : "");
 225 }
 226
 227 static gboolean editor_verbose_io_cb(GIOChannel *source, GIOCondition condition, gpointer data)
 228 {
 229         EditorData *ed = data;
 230         gchar buf[512];
 231         gsize count;
 232
 233         if (condition & G_IO_IN)
 234                 {
 235                 while (g_io_channel_read_chars(source, buf, sizeof(buf), &count, NULL) == G_IO_STATUS_NORMAL)
 236                         {
 237                         if (!g_utf8_validate(buf, count, NULL))
 238                                 {
 239                                 gchar *utf8;
 240
 241                                 utf8 = g_locale_to_utf8(buf, count, NULL, NULL, NULL);
 242                                 if (utf8)
 243                                         {
 244                                         editor_verbose_window_fill(ed->vd, utf8, -1);
 245                                         g_free(utf8);
 246                                         }
 247                                 else
 248                                         {
 249                                         editor_verbose_window_fill(ed->vd, "Error converting text to valid utf8\n", -1);
 250                                         }
 251                                 }
 252                         else
 253                                 {
 254                                 editor_verbose_window_fill(ed->vd, buf, count);
 255                                 }
 256                         }
 257                 }
 258
 259         if (condition & (G_IO_ERR | G_IO_HUP))
 260                 {
 261                 g_io_channel_shutdown(source, TRUE, NULL);
 262                 return FALSE;
 263                 }
 264
 265         return TRUE;
 266 }
 267
 268 typedef enum {
 269         PATH_FILE,
 270         PATH_DEST
 271 } PathType;
 272
 273
 274 static gchar *editor_command_path_parse(const FileData *fd, PathType type, const gchar *extensions)
 275 {
 276         GString *string;
 277         gchar *pathl;
 278         const gchar *p = NULL;
 279
 280         string = g_string_new("");
 281
 282         if (type == PATH_FILE)
 283                 {
 284                 GList *ext_list = filter_to_list(extensions);
 285                 GList *work = ext_list;
 286
 287                 if (!work)
 288                         p = fd->path;
 289                 else
 290                         {
 291                         while(work)
 292                                 {
 293                                 GList *work2;
 294                                 gchar *ext = work->data;
 295                                 work = work->next;
 296
 297                                 if (strcmp(ext, "*") == 0 ||
 298                                     strcasecmp(ext, fd->extension) == 0)
 299                                         {
 300                                         p = fd->path;
 301                                         break;
 302                                         }
 303
 304                                 work2 = fd->sidecar_files;
 305                                 while(work2)
 306                                         {
 307                                         FileData *sfd = work2->data;
 308                                         work2 = work2->next;
 309
 310                                         if (strcasecmp(ext, sfd->extension) == 0)
 311                                                 {
 312                                                 p = sfd->path;
 313                                                 break;
 314                                                 }
 315                                         }
 316                                 if (p) break;
 317                                 }
 318                         string_list_free(ext_list);
 319                         if (!p) return NULL;
 320                         }
 321                 }
 322         else if (type == PATH_DEST)
 323                 {
 324                 if (fd->change && fd->change->dest)
 325                         p = fd->change->dest;
 326                 else
 327                         p = "";
 328                 }
 329
 330         while (*p != '\0')
 331                 {
 332                 /* must escape \, ", `, and $ to avoid problems,
 333                  * we assume system shell supports bash-like escaping
 334                  */
 335                 if (strchr("\\\"`$", *p) != NULL)
 336                         {
 337                         string = g_string_append_c(string, '\\');
 338                         }
 339                 string = g_string_append_c(string, *p);
 340                 p++;
 341                 }
 342
 343         pathl = path_from_utf8(string->str);
 344         g_string_free(string, TRUE);
 345
 346         return pathl;
 347 }
 348
 349
 350 /*
 351  * The supported macros for editor commands:
 352  *
 353  *   %f   first occurence replaced by quoted sequence of filenames, command is run once.
 354  *        only one occurence of this macro is supported.
 355  *        ([ls %f] results in [ls "file1" "file2" ... "lastfile"])
 356  *   %p   command is run for each filename in turn, each instance replaced with single filename.
 357  *        multiple occurences of this macro is supported for complex shell commands.
 358  *        This macro will BLOCK THE APPLICATION until it completes, since command is run once
 359  *        for every file in syncronous order. To avoid blocking add the %v macro, below.
 360  *        ([ls %p] results in [ls "file1"], [ls "file2"] ... [ls "lastfile"])
 361  *   none if no macro is supplied, the result is equivalent to "command %f"
 362  *        ([ls] results in [ls "file1" "file2" ... "lastfile"])
 363  *
 364  *  Only one of the macros %f or %p may be used in a given commmand.
 365  *
 366  *   %v   must be the first two characters[1] in a command, causes a window to display
 367  *        showing the output of the command(s).
 368  *   %V   same as %v except in the case of %p only displays a window for multiple files,
 369  *        operating on a single file is suppresses the output dialog.
 370  *
 371  *   %w   must be first two characters in a command, presence will disable full screen
 372  *        from exiting upon invocation.
 373  *
 374  *
 375  * [1] Note: %v,%V may also be preceded by "%w".
 376  */
 377
 378
 379 gint editor_command_parse(const gchar *template, GList *list, gchar **output)
 380 {
 381         gint flags = 0;
 382         const gchar *p = template;
 383         GString *result = NULL;
 384         gchar *extensions = NULL;
 385
 386         if (output)
 387                 result = g_string_new("");
 388
 389         if (!template || template[0] == '\0')
 390                 {
 391                 flags |= EDITOR_ERROR_EMPTY;
 392                 goto err;
 393                 }
 394
 395
 396         /* global flags */
 397         while (*p == '%')
 398                 {
 399                 switch (*++p)
 400                         {
 401                         case 'w':
 402                                 flags |= EDITOR_KEEP_FS;
 403                                 p++;
 404                                 break;
 405                         case 'v':
 406                                 flags |= EDITOR_VERBOSE;
 407                                 p++;
 408                                 break;
 409                         case 'V':
 410                                 flags |= EDITOR_VERBOSE_MULTI;
 411                                 p++;
 412                                 break;
 413                         }
 414                 }
 415
 416         /* command */
 417
 418         while (*p)
 419                 {
 420                 if (*p != '%')
 421                         {
 422                         if (output) result = g_string_append_c(result, *p);
 423                         }
 424                 else /* *p == '%' */
 425                         {
 426                         extensions = NULL;
 427                         gchar *pathl = NULL;
 428
 429                         p++;
 430
 431                         /* for example "%f" or "%{.crw;.raw;.cr2}f" */
 432                         if (*p == '{')
 433                                 {
 434                                 gchar *end;
 435
 436                                 p++;
 437                                 end = strchr(p, '}');
 438                                 if (!end)
 439                                         {
 440                                         flags |= EDITOR_ERROR_SYNTAX;
 441                                         goto err;
 442                                         }
 443
 444                                 extensions = g_strndup(p, end - p);
 445                                 p = end + 1;
 446                                 }
 447
 448                         switch (*p)
 449                                 {
 450                                 case 'd':
 451                                         flags |= EDITOR_DEST;
 452                                 case 'p':
 453                                         flags |= EDITOR_FOR_EACH;
 454                                         if (flags & EDITOR_SINGLE_COMMAND)
 455                                                 {
 456                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 457                                                 goto err;
 458                                                 }
 459                                         if (output)
 460                                                 {
 461                                                 /* use the first file from the list */
 462                                                 if (!list || !list->data)
 463                                                         {
 464                                                         flags |= EDITOR_ERROR_NO_FILE;
 465                                                         goto err;
 466                                                         }
 467                                                 pathl = editor_command_path_parse((FileData *)list->data, (*p == 'd') ? PATH_DEST : PATH_FILE, extensions);
 468                                                 if (!pathl)
 469                                                         {
 470                                                         flags |= EDITOR_ERROR_NO_FILE;
 471                                                         goto err;
 472                                                         }
 473                                                 result = g_string_append_c(result, '"');
 474                                                 result = g_string_append(result, pathl);
 475                                                 g_free(pathl);
 476                                                 result = g_string_append_c(result, '"');
 477                                                 }
 478                                         break;
 479
 480                                 case 'f':
 481                                         flags |= EDITOR_SINGLE_COMMAND;
 482                                         if (flags & (EDITOR_FOR_EACH | EDITOR_DEST))
 483                                                 {
 484                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 485                                                 goto err;
 486                                                 }
 487
 488                                         if (output)
 489                                                 {
 490                                                 /* use whole list */
 491                                                 GList *work = list;
 492                                                 gboolean ok = FALSE;
 493
 494                                                 while (work)
 495                                                         {
 496                                                         FileData *fd = work->data;
 497                                                         pathl = editor_command_path_parse(fd, PATH_FILE, extensions);
 498
 499                                                         if (pathl)
 500                                                                 {
 501                                                                 ok = TRUE;
 502                                                                 if (work != list) g_string_append_c(result, ' ');
 503                                                                 result = g_string_append_c(result, '"');
 504                                                                 result = g_string_append(result, pathl);
 505                                                                 g_free(pathl);
 506                                                                 result = g_string_append_c(result, '"');
 507                                                                 }
 508                                                         work = work->next;
 509                                                         }
 510                                                 if (!ok)
 511                                                         {
 512                                                         flags |= EDITOR_ERROR_NO_FILE;
 513                                                         goto err;
 514                                                         }
 515                                                 }
 516                                         break;
 517                                 default:
 518                                         flags |= EDITOR_ERROR_SYNTAX;
 519                                         goto err;
 520                                 }
 521                         if (extensions) g_free(extensions);
 522                         extensions = NULL;
 523                         }
 524                 p++;
 525                 }
 526
 527         if (output) *output = g_string_free(result, FALSE);
 528         return flags;
 529
 530
 531 err:
 532         if (output)
 533                 {
 534                 g_string_free(result, TRUE);
 535                 *output = NULL;
 536                 }
 537         if (extensions) g_free(extensions);
 538         return flags;
 539 }
 540
 541 static void editor_child_exit_cb (GPid pid, gint status, gpointer data)
 542 {
 543         EditorData *ed = data;
 544         g_spawn_close_pid(pid);
 545         ed->pid = -1;
 546
 547         editor_command_next_finish(ed, status);
 548 }
 549
 550
 551 static gint editor_command_one(const gchar *template, GList *list, EditorData *ed)
 552 {
 553         gchar *command;
 554         FileData *fd = list->data;
 555         GPid pid;
 556         gint standard_output;
 557         gint standard_error;
 558         gboolean ok;
 559
 560         ed->pid = -1;
 561         ed->flags = editor_command_parse(template, list, &command);
 562
 563         ok = !(ed->flags & EDITOR_ERROR_MASK);
 564
 565         if (ok)
 566                 {
 567                 gchar *working_directory;
 568                 gchar *args[4];
 569
 570                 working_directory = remove_level_from_path(fd->path);
 571                 args[0] = COMMAND_SHELL;
 572                 args[1] = COMMAND_OPT;
 573                 args[2] = command;
 574                 args[3] = NULL;
 575
 576                 ok = g_spawn_async_with_pipes(working_directory, args, NULL,
 577                                       G_SPAWN_DO_NOT_REAP_CHILD, /* GSpawnFlags */
 578                                       NULL, NULL,
 579                                       &pid,
 580                                       NULL,
 581                                       ed->vd ? &standard_output : NULL,
 582                                       ed->vd ? &standard_error : NULL,
 583                                       NULL);
 584
 585                 g_free(working_directory);
 586
 587                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 588                 }
 589
 590         if (ok)
 591                 {
 592                 g_child_watch_add(pid, editor_child_exit_cb, ed);
 593                 ed->pid = pid;
 594                 }
 595
 596         if (ed->vd)
 597                 {
 598                 if (!ok)
 599                         {
 600                         gchar *buf;
 601
 602                         buf = g_strdup_printf(_("Failed to run command:\n%s\n"), template);
 603                         editor_verbose_window_fill(ed->vd, buf, strlen(buf));
 604                         g_free(buf);
 605
 606                         }
 607                 else
 608                         {
 609                         GIOChannel *channel_output;
 610                         GIOChannel *channel_error;
 611
 612                         channel_output = g_io_channel_unix_new(standard_output);
 613                         g_io_channel_set_flags(channel_output, G_IO_FLAG_NONBLOCK, NULL);
 614
 615                         g_io_add_watch_full(channel_output, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 616                                             editor_verbose_io_cb, ed, NULL);
 617                         g_io_channel_unref(channel_output);
 618
 619                         channel_error = g_io_channel_unix_new(standard_error);
 620                         g_io_channel_set_flags(channel_error, G_IO_FLAG_NONBLOCK, NULL);
 621
 622                         g_io_add_watch_full(channel_error, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 623                                             editor_verbose_io_cb, ed, NULL);
 624                         g_io_channel_unref(channel_error);
 625                         }
 626                 }
 627
 628         g_free(command);
 629
 630         return ed->flags & EDITOR_ERROR_MASK;
 631 }
 632
 633 static gint editor_command_next_start(EditorData *ed)
 634 {
 635         if (ed->vd) editor_verbose_window_fill(ed->vd, "\n", 1);
 636
 637         if (ed->list && ed->count < ed->total)
 638                 {
 639                 FileData *fd;
 640                 gint error;
 641
 642                 fd = ed->list->data;
 643
 644                 if (ed->vd)
 645                         {
 646                         editor_verbose_window_progress(ed, (ed->flags & EDITOR_FOR_EACH) ? fd->path : _("running..."));
 647                         }
 648                 ed->count++;
 649
 650                 error = editor_command_one(ed->command_template, ed->list, ed);
 651                 if (!error && ed->vd)
 652                         {
 653                         gtk_widget_set_sensitive(ed->vd->button_stop, (ed->list != NULL) );
 654                         if (ed->flags & EDITOR_FOR_EACH)
 655                                 {
 656                                 editor_verbose_window_fill(ed->vd, fd->path, strlen(fd->path));
 657                                 editor_verbose_window_fill(ed->vd, "\n", 1);
 658                                 }
 659                         }
 660
 661                 if (!error)
 662                         return 0;
 663                 else
 664                         /* command was not started, call the finish immediately */
 665                         return editor_command_next_finish(ed, 0);
 666                 }
 667
 668         /* everything is done */
 669         return editor_command_done(ed);
 670 }
 671
 672 static gint editor_command_next_finish(EditorData *ed, gint status)
 673 {
 674         gint cont = ed->stopping ? EDITOR_CB_SKIP : EDITOR_CB_CONTINUE;
 675
 676         if (status)
 677                 ed->flags |= EDITOR_ERROR_STATUS;
 678
 679         if (ed->flags & EDITOR_FOR_EACH)
 680                 {
 681                 /* handle the first element from the list */
 682                 GList *fd_element = ed->list;
 683
 684                 ed->list = g_list_remove_link(ed->list, fd_element);
 685                 if (ed->callback)
 686                         cont = ed->callback(ed->list ? ed : NULL, ed->flags, fd_element, ed->data);
 687                 filelist_free(fd_element);
 688                 }
 689         else
 690                 {
 691                 /* handle whole list */
 692                 if (ed->callback)
 693                         cont = ed->callback(NULL, ed->flags, ed->list, ed->data);
 694                 filelist_free(ed->list);
 695                 ed->list = NULL;
 696                 }
 697
 698         if (cont == EDITOR_CB_SUSPEND)
 699                 return ed->flags & EDITOR_ERROR_MASK;
 700         else if (cont == EDITOR_CB_SKIP)
 701                 return editor_command_done(ed);
 702         else
 703                 return editor_command_next_start(ed);
 704 }
 705
 706 static gint editor_command_done(EditorData *ed)
 707 {
 708         gint flags;
 709
 710         if (ed->vd)
 711                 {
 712                 const gchar *text;
 713
 714                 if (ed->count == ed->total)
 715                         {
 716                         text = _("done");
 717                         }
 718                 else
 719                         {
 720                         text = _("stopped by user");
 721                         }
 722                 editor_verbose_window_progress(ed, text);
 723                 editor_verbose_window_enable_close(ed->vd);
 724                 }
 725
 726         /* free the not-handled items */
 727         if (ed->list)
 728                 {
 729                 ed->flags |= EDITOR_ERROR_SKIPPED;
 730                 if (ed->callback) ed->callback(NULL, ed->flags, ed->list, ed->data);
 731                 filelist_free(ed->list);
 732                 ed->list = NULL;
 733                 }
 734
 735         ed->count = 0;
 736
 737         flags = ed->flags & EDITOR_ERROR_MASK;
 738
 739         if (!ed->vd) editor_data_free(ed);
 740
 741         return flags;
 742 }
 743
 744 void editor_resume(gpointer ed)
 745 {
 746         editor_command_next_start(ed);
 747 }
 748
 749 void editor_skip(gpointer ed)
 750 {
 751         editor_command_done(ed);
 752 }
 753
 754 static gint editor_command_start(const gchar *template, const gchar *text, GList *list, EditorCallback cb, gpointer data)
 755 {
 756         EditorData *ed;
 757         gint flags = editor_command_parse(template, NULL, NULL);
 758
 759         if (flags & EDITOR_ERROR_MASK) return flags & EDITOR_ERROR_MASK;
 760
 761         ed = g_new0(EditorData, 1);
 762         ed->list = filelist_copy(list);
 763         ed->flags = flags;
 764         ed->command_template = g_strdup(template);
 765         ed->total = (flags & EDITOR_SINGLE_COMMAND) ? 1 : g_list_length(list);
 766         ed->count = 0;
 767         ed->stopping = FALSE;
 768         ed->callback = cb;
 769         ed->data =  data;
 770
 771         if ((flags & EDITOR_VERBOSE_MULTI) && list && list->next)
 772                 flags |= EDITOR_VERBOSE;
 773
 774         if (flags & EDITOR_VERBOSE)
 775                 editor_verbose_window(ed, text);
 776
 777         editor_command_next_start(ed);
 778         /* errors from editor_command_next_start will be handled via callback */
 779         return flags & EDITOR_ERROR_MASK;
 780 }
 781
 782 static gint is_valid_editor_command(gint n)
 783 {
 784         return (n >= 0 && n < GQ_EDITOR_SLOTS
 785                 && options->editor_command[n]
 786                 && strlen(options->editor_command[n]) > 0);
 787 }
 788
 789 gint start_editor_from_filelist_full(gint n, GList *list, EditorCallback cb, gpointer data)
 790 {
 791         gchar *command;
 792         gint error;
 793
 794         if (!list) return FALSE;
 795         if (!is_valid_editor_command(n)) return FALSE;
 796
 797         command = g_locale_from_utf8(options->editor_command[n], -1, NULL, NULL, NULL);
 798         error = editor_command_start(command, options->editor_name[n], list, cb, data);
 799         g_free(command);
 800         return error;
 801 }
 802
 803 gint start_editor_from_filelist(gint n, GList *list)
 804 {
 805         return start_editor_from_filelist_full(n, list,  NULL, NULL);
 806 }
 807
 808 gint start_editor_from_file_full(gint n, FileData *fd, EditorCallback cb, gpointer data)
 809 {
 810         GList *list;
 811         gint error;
 812
 813         if (!fd) return FALSE;
 814
 815         list = g_list_append(NULL, fd);
 816         error = start_editor_from_filelist_full(n, list, cb, data);
 817         g_list_free(list);
 818         return error;
 819 }
 820
 821 gint start_editor_from_file(gint n, FileData *fd)
 822 {
 823         return start_editor_from_file_full(n, fd, NULL, NULL);
 824 }
 825
 826 gint editor_window_flag_set(gint n)
 827 {
 828         if (!is_valid_editor_command(n)) return TRUE;
 829
 830         return (editor_command_parse(options->editor_command[n], NULL, NULL) & EDITOR_KEEP_FS);
 831 }
 832
 833 const gchar *editor_get_error_str(gint flags)
 834 {
 835         if (flags & EDITOR_ERROR_EMPTY) return _("Editor template is empty.");
 836         if (flags & EDITOR_ERROR_SYNTAX) return _("Editor template has incorrect syntax.");
 837         if (flags & EDITOR_ERROR_INCOMPATIBLE) return _("Editor template uses incompatible macros.");
 838         if (flags & EDITOR_ERROR_NO_FILE) return _("Can't find matching file type.");
 839         if (flags & EDITOR_ERROR_CANT_EXEC) return _("Can't execute external editor.");
 840         if (flags & EDITOR_ERROR_STATUS) return _("External editor returned error status.");
 841         if (flags & EDITOR_ERROR_SKIPPED) return _("File was skipped.");
 842         return _("Unknown error.");
 843 }