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 "debug.h"
  18 #include "filedata.h"
  19 #include "filefilter.h"
  20 #include "utilops.h"
  21 #include "ui_fileops.h"
  22 #include "ui_spinner.h"
  23 #include "ui_utildlg.h"
  24
  25 #include <errno.h>
  26
  27
  28 #define EDITOR_WINDOW_WIDTH 500
  29 #define EDITOR_WINDOW_HEIGHT 300
  30
  31 #define COMMAND_SHELL "/bin/sh"
  32 #define COMMAND_OPT  "-c"
  33
  34
  35 typedef struct _EditorVerboseData EditorVerboseData;
  36 struct _EditorVerboseData {
  37         GenericDialog *gd;
  38         GtkWidget *button_close;
  39         GtkWidget *button_stop;
  40         GtkWidget *text;
  41         GtkWidget *progress;
  42         GtkWidget *spinner;
  43 };
  44
  45 typedef struct _EditorData EditorData;
  46 struct _EditorData {
  47         gint flags;
  48         GPid pid;
  49         gchar *command_template;
  50         GList *list;
  51         gint count;
  52         gint total;
  53         gboolean stopping;
  54         EditorVerboseData *vd;
  55         EditorCallback callback;
  56         gpointer data;
  57 };
  58
  59
  60 static gchar *editor_slot_defaults[GQ_EDITOR_SLOTS * 2] = {
  61         N_("The Gimp"), "gimp-remote %{.cr2;.crw;.nef;.raw;*}f",
  62         N_("XV"), "xv %f",
  63         N_("Xpaint"), "xpaint %f",
  64         N_("UFraw"), "ufraw %{.cr2;.crw;.nef;.raw}p",
  65         N_("Add XMP sidecar"), "%vFILE=%{.cr2;.crw;.nef;.raw}p;XMP=`echo \"$FILE\"|sed -e 's|\\.[^.]*$|.xmp|'`; exiftool -tagsfromfile \"$FILE\" \"$XMP\"",
  66         NULL, NULL,
  67         NULL, NULL,
  68         NULL, NULL,
  69         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",
  70         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",
  71         /* special slots */
  72 #if 1
  73         /* for testing */
  74         N_("External Copy command"), "%vset -x;cp %p %d",
  75         N_("External Move command"), "%vset -x;mv %p %d",
  76         N_("External Rename command"), "%vset -x;mv %p %d",
  77         N_("External Delete command"), NULL,
  78         N_("External New Folder command"), NULL
  79 #else
  80         N_("External Copy command"), NULL,
  81         N_("External Move command"), NULL,
  82         N_("External Rename command"), NULL,
  83         N_("External Delete command"), NULL,
  84         N_("External New Folder command"), NULL
  85 #endif
  86 };
  87
  88 static void editor_verbose_window_progress(EditorData *ed, const gchar *text);
  89 static gint editor_command_next_start(EditorData *ed);
  90 static gint editor_command_next_finish(EditorData *ed, gint status);
  91 static gint editor_command_done(EditorData *ed);
  92
  93 /*
  94  *-----------------------------------------------------------------------------
  95  * external editor routines
  96  *-----------------------------------------------------------------------------
  97  */
  98
  99 void editor_reset_defaults(void)
 100 {
 101         gint i;
 102
 103         for (i = 0; i < GQ_EDITOR_SLOTS; i++)
 104                 {
 105                 g_free(options->editor_name[i]);
 106                 options->editor_name[i] = g_strdup(_(editor_slot_defaults[i * 2]));
 107                 g_free(options->editor_command[i]);
 108                 options->editor_command[i] = g_strdup(editor_slot_defaults[i * 2 + 1]);
 109                 }
 110 }
 111
 112 static void editor_verbose_data_free(EditorData *ed)
 113 {
 114         if (!ed->vd) return;
 115         g_free(ed->vd);
 116         ed->vd = NULL;
 117 }
 118
 119 static void editor_data_free(EditorData *ed)
 120 {
 121         editor_verbose_data_free(ed);
 122         g_free(ed->command_template);
 123         g_free(ed);
 124 }
 125
 126 static void editor_verbose_window_close(GenericDialog *gd, gpointer data)
 127 {
 128         EditorData *ed = data;
 129
 130         generic_dialog_close(gd);
 131         editor_verbose_data_free(ed);
 132         if (ed->pid == -1) editor_data_free(ed); /* the process has already terminated */
 133 }
 134
 135 static void editor_verbose_window_stop(GenericDialog *gd, gpointer data)
 136 {
 137         EditorData *ed = data;
 138         ed->stopping = TRUE;
 139         ed->count = 0;
 140         editor_verbose_window_progress(ed, _("stopping..."));
 141 }
 142
 143 static void editor_verbose_window_enable_close(EditorVerboseData *vd)
 144 {
 145         vd->gd->cancel_cb = editor_verbose_window_close;
 146
 147         spinner_set_interval(vd->spinner, -1);
 148         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 149         gtk_widget_set_sensitive(vd->button_close, TRUE);
 150 }
 151
 152 static EditorVerboseData *editor_verbose_window(EditorData *ed, const gchar *text)
 153 {
 154         EditorVerboseData *vd;
 155         GtkWidget *scrolled;
 156         GtkWidget *hbox;
 157         gchar *buf;
 158
 159         vd = g_new0(EditorVerboseData, 1);
 160
 161         vd->gd = file_util_gen_dlg(_("Edit command results"), GQ_WMCLASS, "editor_results",
 162                                    NULL, FALSE,
 163                                    NULL, ed);
 164         buf = g_strdup_printf(_("Output of %s"), text);
 165         generic_dialog_add_message(vd->gd, NULL, buf, NULL);
 166         g_free(buf);
 167         vd->button_stop = generic_dialog_add_button(vd->gd, GTK_STOCK_STOP, NULL,
 168                                                    editor_verbose_window_stop, FALSE);
 169         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 170         vd->button_close = generic_dialog_add_button(vd->gd, GTK_STOCK_CLOSE, NULL,
 171                                                     editor_verbose_window_close, TRUE);
 172         gtk_widget_set_sensitive(vd->button_close, FALSE);
 173
 174         scrolled = gtk_scrolled_window_new(NULL, NULL);
 175         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
 176         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled),
 177                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 178         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), scrolled, TRUE, TRUE, 5);
 179         gtk_widget_show(scrolled);
 180
 181         vd->text = gtk_text_view_new();
 182         gtk_text_view_set_editable(GTK_TEXT_VIEW(vd->text), FALSE);
 183         gtk_widget_set_size_request(vd->text, EDITOR_WINDOW_WIDTH, EDITOR_WINDOW_HEIGHT);
 184         gtk_container_add(GTK_CONTAINER(scrolled), vd->text);
 185         gtk_widget_show(vd->text);
 186
 187         hbox = gtk_hbox_new(FALSE, 0);
 188         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), hbox, FALSE, FALSE, 0);
 189         gtk_widget_show(hbox);
 190
 191         vd->progress = gtk_progress_bar_new();
 192         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(vd->progress), 0.0);
 193         gtk_box_pack_start(GTK_BOX(hbox), vd->progress, TRUE, TRUE, 0);
 194         gtk_widget_show(vd->progress);
 195
 196         vd->spinner = spinner_new(NULL, SPINNER_SPEED);
 197         gtk_box_pack_start(GTK_BOX(hbox), vd->spinner, FALSE, FALSE, 0);
 198         gtk_widget_show(vd->spinner);
 199
 200         gtk_widget_show(vd->gd->dialog);
 201
 202         ed->vd = vd;
 203         return vd;
 204 }
 205
 206 static void editor_verbose_window_fill(EditorVerboseData *vd, gchar *text, gint len)
 207 {
 208         GtkTextBuffer *buffer;
 209         GtkTextIter iter;
 210
 211         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(vd->text));
 212         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 213         gtk_text_buffer_insert(buffer, &iter, text, len);
 214 }
 215
 216 static void editor_verbose_window_progress(EditorData *ed, const gchar *text)
 217 {
 218         if (!ed->vd) return;
 219
 220         if (ed->total)
 221                 {
 222                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(ed->vd->progress), (double)ed->count / ed->total);
 223                 }
 224
 225         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(ed->vd->progress), (text) ? text : "");
 226 }
 227
 228 static gboolean editor_verbose_io_cb(GIOChannel *source, GIOCondition condition, gpointer data)
 229 {
 230         EditorData *ed = data;
 231         gchar buf[512];
 232         gsize count;
 233
 234         if (condition & G_IO_IN)
 235                 {
 236                 while (g_io_channel_read_chars(source, buf, sizeof(buf), &count, NULL) == G_IO_STATUS_NORMAL)
 237                         {
 238                         if (!g_utf8_validate(buf, count, NULL))
 239                                 {
 240                                 gchar *utf8;
 241
 242                                 utf8 = g_locale_to_utf8(buf, count, NULL, NULL, NULL);
 243                                 if (utf8)
 244                                         {
 245                                         editor_verbose_window_fill(ed->vd, utf8, -1);
 246                                         g_free(utf8);
 247                                         }
 248                                 else
 249                                         {
 250                                         editor_verbose_window_fill(ed->vd, "Error converting text to valid utf8\n", -1);
 251                                         }
 252                                 }
 253                         else
 254                                 {
 255                                 editor_verbose_window_fill(ed->vd, buf, count);
 256                                 }
 257                         }
 258                 }
 259
 260         if (condition & (G_IO_ERR | G_IO_HUP))
 261                 {
 262                 g_io_channel_shutdown(source, TRUE, NULL);
 263                 return FALSE;
 264                 }
 265
 266         return TRUE;
 267 }
 268
 269 typedef enum {
 270         PATH_FILE,
 271         PATH_DEST
 272 } PathType;
 273
 274
 275 static gchar *editor_command_path_parse(const FileData *fd, PathType type, const gchar *extensions)
 276 {
 277         GString *string;
 278         gchar *pathl;
 279         const gchar *p = NULL;
 280
 281         string = g_string_new("");
 282
 283         if (type == PATH_FILE)
 284                 {
 285                 GList *ext_list = filter_to_list(extensions);
 286                 GList *work = ext_list;
 287
 288                 if (!work)
 289                         p = fd->path;
 290                 else
 291                         {
 292                         while (work)
 293                                 {
 294                                 GList *work2;
 295                                 gchar *ext = work->data;
 296                                 work = work->next;
 297
 298                                 if (strcmp(ext, "*") == 0 ||
 299                                     strcasecmp(ext, fd->extension) == 0)
 300                                         {
 301                                         p = fd->path;
 302                                         break;
 303                                         }
 304
 305                                 work2 = fd->sidecar_files;
 306                                 while (work2)
 307                                         {
 308                                         FileData *sfd = work2->data;
 309                                         work2 = work2->next;
 310
 311                                         if (strcasecmp(ext, sfd->extension) == 0)
 312                                                 {
 313                                                 p = sfd->path;
 314                                                 break;
 315                                                 }
 316                                         }
 317                                 if (p) break;
 318                                 }
 319                         string_list_free(ext_list);
 320                         if (!p) return NULL;
 321                         }
 322                 }
 323         else if (type == PATH_DEST)
 324                 {
 325                 if (fd->change && fd->change->dest)
 326                         p = fd->change->dest;
 327                 else
 328                         p = "";
 329                 }
 330
 331         while (*p != '\0')
 332                 {
 333                 /* must escape \, ", `, and $ to avoid problems,
 334                  * we assume system shell supports bash-like escaping
 335                  */
 336                 if (strchr("\\\"`$", *p) != NULL)
 337                         {
 338                         string = g_string_append_c(string, '\\');
 339                         }
 340                 string = g_string_append_c(string, *p);
 341                 p++;
 342                 }
 343
 344         pathl = path_from_utf8(string->str);
 345         g_string_free(string, TRUE);
 346
 347         return pathl;
 348 }
 349
 350
 351 /*
 352  * The supported macros for editor commands:
 353  *
 354  *   %f   first occurence replaced by quoted sequence of filenames, command is run once.
 355  *        only one occurence of this macro is supported.
 356  *        ([ls %f] results in [ls "file1" "file2" ... "lastfile"])
 357  *   %p   command is run for each filename in turn, each instance replaced with single filename.
 358  *        multiple occurences of this macro is supported for complex shell commands.
 359  *        This macro will BLOCK THE APPLICATION until it completes, since command is run once
 360  *        for every file in syncronous order. To avoid blocking add the %v macro, below.
 361  *        ([ls %p] results in [ls "file1"], [ls "file2"] ... [ls "lastfile"])
 362  *   none if no macro is supplied, the result is equivalent to "command %f"
 363  *        ([ls] results in [ls "file1" "file2" ... "lastfile"])
 364  *
 365  *  Only one of the macros %f or %p may be used in a given commmand.
 366  *
 367  *   %v   must be the first two characters[1] in a command, causes a window to display
 368  *        showing the output of the command(s).
 369  *   %V   same as %v except in the case of %p only displays a window for multiple files,
 370  *        operating on a single file is suppresses the output dialog.
 371  *
 372  *   %w   must be first two characters in a command, presence will disable full screen
 373  *        from exiting upon invocation.
 374  *
 375  *
 376  * [1] Note: %v,%V may also be preceded by "%w".
 377  */
 378
 379
 380 gint editor_command_parse(const gchar *template, GList *list, gchar **output)
 381 {
 382         gint flags = 0;
 383         const gchar *p = template;
 384         GString *result = NULL;
 385         gchar *extensions = NULL;
 386
 387         if (output)
 388                 result = g_string_new("");
 389
 390         if (!template || template[0] == '\0')
 391                 {
 392                 flags |= EDITOR_ERROR_EMPTY;
 393                 goto err;
 394                 }
 395
 396         /* skip leading whitespaces if any */
 397         while (g_ascii_isspace(*p)) p++;
 398
 399         /* global flags */
 400         while (*p == '%')
 401                 {
 402                 switch (*++p)
 403                         {
 404                         case 'w':
 405                                 flags |= EDITOR_KEEP_FS;
 406                                 p++;
 407                                 break;
 408                         case 'v':
 409                                 flags |= EDITOR_VERBOSE;
 410                                 p++;
 411                                 break;
 412                         case 'V':
 413                                 flags |= EDITOR_VERBOSE_MULTI;
 414                                 p++;
 415                                 break;
 416                         default:
 417                                 flags |= EDITOR_ERROR_SYNTAX;
 418                                 goto err;
 419                         }
 420                 }
 421
 422         /* skip whitespaces if any */
 423         while (g_ascii_isspace(*p)) p++;
 424
 425         /* command */
 426
 427         while (*p)
 428                 {
 429                 if (*p != '%')
 430                         {
 431                         if (output) result = g_string_append_c(result, *p);
 432                         }
 433                 else /* *p == '%' */
 434                         {
 435                         extensions = NULL;
 436                         gchar *pathl = NULL;
 437
 438                         p++;
 439
 440                         /* for example "%f" or "%{.crw;.raw;.cr2}f" */
 441                         if (*p == '{')
 442                                 {
 443                                 gchar *end;
 444
 445                                 p++;
 446                                 end = strchr(p, '}');
 447                                 if (!end)
 448                                         {
 449                                         flags |= EDITOR_ERROR_SYNTAX;
 450                                         goto err;
 451                                         }
 452
 453                                 extensions = g_strndup(p, end - p);
 454                                 p = end + 1;
 455                                 }
 456
 457                         switch (*p)
 458                                 {
 459                                 case 'd':
 460                                         flags |= EDITOR_DEST;
 461                                         /* fall through */
 462                                 case 'p':
 463                                         flags |= EDITOR_FOR_EACH;
 464                                         if (flags & EDITOR_SINGLE_COMMAND)
 465                                                 {
 466                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 467                                                 goto err;
 468                                                 }
 469                                         if (output)
 470                                                 {
 471                                                 /* use the first file from the list */
 472                                                 if (!list || !list->data)
 473                                                         {
 474                                                         flags |= EDITOR_ERROR_NO_FILE;
 475                                                         goto err;
 476                                                         }
 477                                                 pathl = editor_command_path_parse((FileData *)list->data,
 478                                                                                   (flags & EDITOR_DEST) ? PATH_DEST : PATH_FILE,
 479                                                                                   extensions);
 480                                                 if (!pathl)
 481                                                         {
 482                                                         flags |= EDITOR_ERROR_NO_FILE;
 483                                                         goto err;
 484                                                         }
 485                                                 result = g_string_append_c(result, '"');
 486                                                 result = g_string_append(result, pathl);
 487                                                 g_free(pathl);
 488                                                 result = g_string_append_c(result, '"');
 489                                                 }
 490                                         break;
 491
 492                                 case 'f':
 493                                         flags |= EDITOR_SINGLE_COMMAND;
 494                                         if (flags & (EDITOR_FOR_EACH | EDITOR_DEST))
 495                                                 {
 496                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 497                                                 goto err;
 498                                                 }
 499
 500                                         if (output)
 501                                                 {
 502                                                 /* use whole list */
 503                                                 GList *work = list;
 504                                                 gboolean ok = FALSE;
 505
 506                                                 while (work)
 507                                                         {
 508                                                         FileData *fd = work->data;
 509                                                         pathl = editor_command_path_parse(fd, PATH_FILE, extensions);
 510
 511                                                         if (pathl)
 512                                                                 {
 513                                                                 ok = TRUE;
 514                                                                 if (work != list) g_string_append_c(result, ' ');
 515                                                                 result = g_string_append_c(result, '"');
 516                                                                 result = g_string_append(result, pathl);
 517                                                                 g_free(pathl);
 518                                                                 result = g_string_append_c(result, '"');
 519                                                                 }
 520                                                         work = work->next;
 521                                                         }
 522                                                 if (!ok)
 523                                                         {
 524                                                         flags |= EDITOR_ERROR_NO_FILE;
 525                                                         goto err;
 526                                                         }
 527                                                 }
 528                                         break;
 529                                 case '%':
 530                                         /* %% = % escaping */
 531                                         if (output) result = g_string_append_c(result, *p);
 532                                         break;
 533                                 default:
 534                                         flags |= EDITOR_ERROR_SYNTAX;
 535                                         goto err;
 536                                 }
 537                         if (extensions) g_free(extensions);
 538                         extensions = NULL;
 539                         }
 540                 p++;
 541                 }
 542
 543         if (output) *output = g_string_free(result, FALSE);
 544         return flags;
 545
 546
 547 err:
 548         if (output)
 549                 {
 550                 g_string_free(result, TRUE);
 551                 *output = NULL;
 552                 }
 553         if (extensions) g_free(extensions);
 554         return flags;
 555 }
 556
 557 static void editor_child_exit_cb (GPid pid, gint status, gpointer data)
 558 {
 559         EditorData *ed = data;
 560         g_spawn_close_pid(pid);
 561         ed->pid = -1;
 562
 563         editor_command_next_finish(ed, status);
 564 }
 565
 566
 567 static gint editor_command_one(const gchar *template, GList *list, EditorData *ed)
 568 {
 569         gchar *command;
 570         FileData *fd = list->data;
 571         GPid pid;
 572         gint standard_output;
 573         gint standard_error;
 574         gboolean ok;
 575
 576         ed->pid = -1;
 577         ed->flags = editor_command_parse(template, list, &command);
 578
 579         ok = !(ed->flags & EDITOR_ERROR_MASK);
 580
 581         if (ok)
 582                 {
 583                 gchar *working_directory;
 584                 gchar *args[4];
 585
 586                 working_directory = remove_level_from_path(fd->path);
 587                 args[0] = COMMAND_SHELL;
 588                 args[1] = COMMAND_OPT;
 589                 args[2] = command;
 590                 args[3] = NULL;
 591
 592                 ok = g_spawn_async_with_pipes(working_directory, args, NULL,
 593                                       G_SPAWN_DO_NOT_REAP_CHILD, /* GSpawnFlags */
 594                                       NULL, NULL,
 595                                       &pid,
 596                                       NULL,
 597                                       ed->vd ? &standard_output : NULL,
 598                                       ed->vd ? &standard_error : NULL,
 599                                       NULL);
 600
 601                 g_free(working_directory);
 602
 603                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 604                 }
 605
 606         if (ok)
 607                 {
 608                 g_child_watch_add(pid, editor_child_exit_cb, ed);
 609                 ed->pid = pid;
 610                 }
 611
 612         if (ed->vd)
 613                 {
 614                 if (!ok)
 615                         {
 616                         gchar *buf;
 617
 618                         buf = g_strdup_printf(_("Failed to run command:\n%s\n"), template);
 619                         editor_verbose_window_fill(ed->vd, buf, strlen(buf));
 620                         g_free(buf);
 621
 622                         }
 623                 else
 624                         {
 625                         GIOChannel *channel_output;
 626                         GIOChannel *channel_error;
 627
 628                         channel_output = g_io_channel_unix_new(standard_output);
 629                         g_io_channel_set_flags(channel_output, G_IO_FLAG_NONBLOCK, NULL);
 630
 631                         g_io_add_watch_full(channel_output, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 632                                             editor_verbose_io_cb, ed, NULL);
 633                         g_io_channel_unref(channel_output);
 634
 635                         channel_error = g_io_channel_unix_new(standard_error);
 636                         g_io_channel_set_flags(channel_error, G_IO_FLAG_NONBLOCK, NULL);
 637
 638                         g_io_add_watch_full(channel_error, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 639                                             editor_verbose_io_cb, ed, NULL);
 640                         g_io_channel_unref(channel_error);
 641                         }
 642                 }
 643
 644         g_free(command);
 645
 646         return ed->flags & EDITOR_ERROR_MASK;
 647 }
 648
 649 static gint editor_command_next_start(EditorData *ed)
 650 {
 651         if (ed->vd) editor_verbose_window_fill(ed->vd, "\n", 1);
 652
 653         if (ed->list && ed->count < ed->total)
 654                 {
 655                 FileData *fd;
 656                 gint error;
 657
 658                 fd = ed->list->data;
 659
 660                 if (ed->vd)
 661                         {
 662                         editor_verbose_window_progress(ed, (ed->flags & EDITOR_FOR_EACH) ? fd->path : _("running..."));
 663                         }
 664                 ed->count++;
 665
 666                 error = editor_command_one(ed->command_template, ed->list, ed);
 667                 if (!error && ed->vd)
 668                         {
 669                         gtk_widget_set_sensitive(ed->vd->button_stop, (ed->list != NULL) );
 670                         if (ed->flags & EDITOR_FOR_EACH)
 671                                 {
 672                                 editor_verbose_window_fill(ed->vd, fd->path, strlen(fd->path));
 673                                 editor_verbose_window_fill(ed->vd, "\n", 1);
 674                                 }
 675                         }
 676
 677                 if (!error)
 678                         return 0;
 679                 else
 680                         /* command was not started, call the finish immediately */
 681                         return editor_command_next_finish(ed, 0);
 682                 }
 683
 684         /* everything is done */
 685         return editor_command_done(ed);
 686 }
 687
 688 static gint editor_command_next_finish(EditorData *ed, gint status)
 689 {
 690         gint cont = ed->stopping ? EDITOR_CB_SKIP : EDITOR_CB_CONTINUE;
 691
 692         if (status)
 693                 ed->flags |= EDITOR_ERROR_STATUS;
 694
 695         if (ed->flags & EDITOR_FOR_EACH)
 696                 {
 697                 /* handle the first element from the list */
 698                 GList *fd_element = ed->list;
 699
 700                 ed->list = g_list_remove_link(ed->list, fd_element);
 701                 if (ed->callback)
 702                         cont = ed->callback(ed->list ? ed : NULL, ed->flags, fd_element, ed->data);
 703                 filelist_free(fd_element);
 704                 }
 705         else
 706                 {
 707                 /* handle whole list */
 708                 if (ed->callback)
 709                         cont = ed->callback(NULL, ed->flags, ed->list, ed->data);
 710                 filelist_free(ed->list);
 711                 ed->list = NULL;
 712                 }
 713
 714         if (cont == EDITOR_CB_SUSPEND)
 715                 return ed->flags & EDITOR_ERROR_MASK;
 716         else if (cont == EDITOR_CB_SKIP)
 717                 return editor_command_done(ed);
 718         else
 719                 return editor_command_next_start(ed);
 720 }
 721
 722 static gint editor_command_done(EditorData *ed)
 723 {
 724         gint flags;
 725
 726         if (ed->vd)
 727                 {
 728                 const gchar *text;
 729
 730                 if (ed->count == ed->total)
 731                         {
 732                         text = _("done");
 733                         }
 734                 else
 735                         {
 736                         text = _("stopped by user");
 737                         }
 738                 editor_verbose_window_progress(ed, text);
 739                 editor_verbose_window_enable_close(ed->vd);
 740                 }
 741
 742         /* free the not-handled items */
 743         if (ed->list)
 744                 {
 745                 ed->flags |= EDITOR_ERROR_SKIPPED;
 746                 if (ed->callback) ed->callback(NULL, ed->flags, ed->list, ed->data);
 747                 filelist_free(ed->list);
 748                 ed->list = NULL;
 749                 }
 750
 751         ed->count = 0;
 752
 753         flags = ed->flags & EDITOR_ERROR_MASK;
 754
 755         if (!ed->vd) editor_data_free(ed);
 756
 757         return flags;
 758 }
 759
 760 void editor_resume(gpointer ed)
 761 {
 762         editor_command_next_start(ed);
 763 }
 764
 765 void editor_skip(gpointer ed)
 766 {
 767         editor_command_done(ed);
 768 }
 769
 770 static gint editor_command_start(const gchar *template, const gchar *text, GList *list, EditorCallback cb, gpointer data)
 771 {
 772         EditorData *ed;
 773         gint flags = editor_command_parse(template, NULL, NULL);
 774
 775         if (flags & EDITOR_ERROR_MASK) return flags & EDITOR_ERROR_MASK;
 776
 777         ed = g_new0(EditorData, 1);
 778         ed->list = filelist_copy(list);
 779         ed->flags = flags;
 780         ed->command_template = g_strdup(template);
 781         ed->total = (flags & EDITOR_SINGLE_COMMAND) ? 1 : g_list_length(list);
 782         ed->count = 0;
 783         ed->stopping = FALSE;
 784         ed->callback = cb;
 785         ed->data =  data;
 786
 787         if ((flags & EDITOR_VERBOSE_MULTI) && list && list->next)
 788                 flags |= EDITOR_VERBOSE;
 789
 790         if (flags & EDITOR_VERBOSE)
 791                 editor_verbose_window(ed, text);
 792
 793         editor_command_next_start(ed);
 794         /* errors from editor_command_next_start will be handled via callback */
 795         return flags & EDITOR_ERROR_MASK;
 796 }
 797
 798 static gint is_valid_editor_command(gint n)
 799 {
 800         return (n >= 0 && n < GQ_EDITOR_SLOTS
 801                 && options->editor_command[n]
 802                 && strlen(options->editor_command[n]) > 0);
 803 }
 804
 805 gint start_editor_from_filelist_full(gint n, GList *list, EditorCallback cb, gpointer data)
 806 {
 807         gchar *command;
 808         gint error;
 809
 810         if (!list) return FALSE;
 811         if (!is_valid_editor_command(n)) return FALSE;
 812
 813         command = g_locale_from_utf8(options->editor_command[n], -1, NULL, NULL, NULL);
 814         error = editor_command_start(command, options->editor_name[n], list, cb, data);
 815         g_free(command);
 816
 817         if (n < GQ_EDITOR_GENERIC_SLOTS && (error & EDITOR_ERROR_SYNTAX))
 818                 {
 819                 gchar *text = g_strdup_printf(_("Syntax error in the editor template \"%s\":\n%s"),
 820                                               options->editor_name[n], options->editor_command[n]);
 821
 822                 file_util_warning_dialog(_("Invalid editor command"), text, GTK_STOCK_DIALOG_ERROR, NULL);
 823                 g_free(text);
 824                 }
 825
 826         return error;
 827 }
 828
 829 gint start_editor_from_filelist(gint n, GList *list)
 830 {
 831         return start_editor_from_filelist_full(n, list,  NULL, NULL);
 832 }
 833
 834 gint start_editor_from_file_full(gint n, FileData *fd, EditorCallback cb, gpointer data)
 835 {
 836         GList *list;
 837         gint error;
 838
 839         if (!fd) return FALSE;
 840
 841         list = g_list_append(NULL, fd);
 842         error = start_editor_from_filelist_full(n, list, cb, data);
 843         g_list_free(list);
 844         return error;
 845 }
 846
 847 gint start_editor_from_file(gint n, FileData *fd)
 848 {
 849         return start_editor_from_file_full(n, fd, NULL, NULL);
 850 }
 851
 852 gint editor_window_flag_set(gint n)
 853 {
 854         if (!is_valid_editor_command(n)) return TRUE;
 855
 856         return (editor_command_parse(options->editor_command[n], NULL, NULL) & EDITOR_KEEP_FS);
 857 }
 858
 859 const gchar *editor_get_error_str(gint flags)
 860 {
 861         if (flags & EDITOR_ERROR_EMPTY) return _("Editor template is empty.");
 862         if (flags & EDITOR_ERROR_SYNTAX) return _("Editor template has incorrect syntax.");
 863         if (flags & EDITOR_ERROR_INCOMPATIBLE) return _("Editor template uses incompatible macros.");
 864         if (flags & EDITOR_ERROR_NO_FILE) return _("Can't find matching file type.");
 865         if (flags & EDITOR_ERROR_CANT_EXEC) return _("Can't execute external editor.");
 866         if (flags & EDITOR_ERROR_STATUS) return _("External editor returned error status.");
 867         if (flags & EDITOR_ERROR_SKIPPED) return _("File was skipped.");
 868         return _("Unknown error.");
 869 }