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 "filedata.h"
  23 #include "filefilter.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
 397         /* global flags */
 398         while (*p == '%')
 399                 {
 400                 switch (*++p)
 401                         {
 402                         case 'w':
 403                                 flags |= EDITOR_KEEP_FS;
 404                                 p++;
 405                                 break;
 406                         case 'v':
 407                                 flags |= EDITOR_VERBOSE;
 408                                 p++;
 409                                 break;
 410                         case 'V':
 411                                 flags |= EDITOR_VERBOSE_MULTI;
 412                                 p++;
 413                                 break;
 414                         }
 415                 }
 416
 417         /* command */
 418
 419         while (*p)
 420                 {
 421                 if (*p != '%')
 422                         {
 423                         if (output) result = g_string_append_c(result, *p);
 424                         }
 425                 else /* *p == '%' */
 426                         {
 427                         extensions = NULL;
 428                         gchar *pathl = NULL;
 429
 430                         p++;
 431
 432                         /* for example "%f" or "%{.crw;.raw;.cr2}f" */
 433                         if (*p == '{')
 434                                 {
 435                                 gchar *end;
 436
 437                                 p++;
 438                                 end = strchr(p, '}');
 439                                 if (!end)
 440                                         {
 441                                         flags |= EDITOR_ERROR_SYNTAX;
 442                                         goto err;
 443                                         }
 444
 445                                 extensions = g_strndup(p, end - p);
 446                                 p = end + 1;
 447                                 }
 448
 449                         switch (*p)
 450                                 {
 451                                 case 'd':
 452                                         flags |= EDITOR_DEST;
 453                                 case 'p':
 454                                         flags |= EDITOR_FOR_EACH;
 455                                         if (flags & EDITOR_SINGLE_COMMAND)
 456                                                 {
 457                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 458                                                 goto err;
 459                                                 }
 460                                         if (output)
 461                                                 {
 462                                                 /* use the first file from the list */
 463                                                 if (!list || !list->data)
 464                                                         {
 465                                                         flags |= EDITOR_ERROR_NO_FILE;
 466                                                         goto err;
 467                                                         }
 468                                                 pathl = editor_command_path_parse((FileData *)list->data, (*p == 'd') ? PATH_DEST : PATH_FILE, extensions);
 469                                                 if (!pathl)
 470                                                         {
 471                                                         flags |= EDITOR_ERROR_NO_FILE;
 472                                                         goto err;
 473                                                         }
 474                                                 result = g_string_append_c(result, '"');
 475                                                 result = g_string_append(result, pathl);
 476                                                 g_free(pathl);
 477                                                 result = g_string_append_c(result, '"');
 478                                                 }
 479                                         break;
 480
 481                                 case 'f':
 482                                         flags |= EDITOR_SINGLE_COMMAND;
 483                                         if (flags & (EDITOR_FOR_EACH | EDITOR_DEST))
 484                                                 {
 485                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 486                                                 goto err;
 487                                                 }
 488
 489                                         if (output)
 490                                                 {
 491                                                 /* use whole list */
 492                                                 GList *work = list;
 493                                                 gboolean ok = FALSE;
 494
 495                                                 while (work)
 496                                                         {
 497                                                         FileData *fd = work->data;
 498                                                         pathl = editor_command_path_parse(fd, PATH_FILE, extensions);
 499
 500                                                         if (pathl)
 501                                                                 {
 502                                                                 ok = TRUE;
 503                                                                 if (work != list) g_string_append_c(result, ' ');
 504                                                                 result = g_string_append_c(result, '"');
 505                                                                 result = g_string_append(result, pathl);
 506                                                                 g_free(pathl);
 507                                                                 result = g_string_append_c(result, '"');
 508                                                                 }
 509                                                         work = work->next;
 510                                                         }
 511                                                 if (!ok)
 512                                                         {
 513                                                         flags |= EDITOR_ERROR_NO_FILE;
 514                                                         goto err;
 515                                                         }
 516                                                 }
 517                                         break;
 518                                 default:
 519                                         flags |= EDITOR_ERROR_SYNTAX;
 520                                         goto err;
 521                                 }
 522                         if (extensions) g_free(extensions);
 523                         extensions = NULL;
 524                         }
 525                 p++;
 526                 }
 527
 528         if (output) *output = g_string_free(result, FALSE);
 529         return flags;
 530
 531
 532 err:
 533         if (output)
 534                 {
 535                 g_string_free(result, TRUE);
 536                 *output = NULL;
 537                 }
 538         if (extensions) g_free(extensions);
 539         return flags;
 540 }
 541
 542 static void editor_child_exit_cb (GPid pid, gint status, gpointer data)
 543 {
 544         EditorData *ed = data;
 545         g_spawn_close_pid(pid);
 546         ed->pid = -1;
 547
 548         editor_command_next_finish(ed, status);
 549 }
 550
 551
 552 static gint editor_command_one(const gchar *template, GList *list, EditorData *ed)
 553 {
 554         gchar *command;
 555         FileData *fd = list->data;
 556         GPid pid;
 557         gint standard_output;
 558         gint standard_error;
 559         gboolean ok;
 560
 561         ed->pid = -1;
 562         ed->flags = editor_command_parse(template, list, &command);
 563
 564         ok = !(ed->flags & EDITOR_ERROR_MASK);
 565
 566         if (ok)
 567                 {
 568                 gchar *working_directory;
 569                 gchar *args[4];
 570
 571                 working_directory = remove_level_from_path(fd->path);
 572                 args[0] = COMMAND_SHELL;
 573                 args[1] = COMMAND_OPT;
 574                 args[2] = command;
 575                 args[3] = NULL;
 576
 577                 ok = g_spawn_async_with_pipes(working_directory, args, NULL,
 578                                       G_SPAWN_DO_NOT_REAP_CHILD, /* GSpawnFlags */
 579                                       NULL, NULL,
 580                                       &pid,
 581                                       NULL,
 582                                       ed->vd ? &standard_output : NULL,
 583                                       ed->vd ? &standard_error : NULL,
 584                                       NULL);
 585
 586                 g_free(working_directory);
 587
 588                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 589                 }
 590
 591         if (ok)
 592                 {
 593                 g_child_watch_add(pid, editor_child_exit_cb, ed);
 594                 ed->pid = pid;
 595                 }
 596
 597         if (ed->vd)
 598                 {
 599                 if (!ok)
 600                         {
 601                         gchar *buf;
 602
 603                         buf = g_strdup_printf(_("Failed to run command:\n%s\n"), template);
 604                         editor_verbose_window_fill(ed->vd, buf, strlen(buf));
 605                         g_free(buf);
 606
 607                         }
 608                 else
 609                         {
 610                         GIOChannel *channel_output;
 611                         GIOChannel *channel_error;
 612
 613                         channel_output = g_io_channel_unix_new(standard_output);
 614                         g_io_channel_set_flags(channel_output, G_IO_FLAG_NONBLOCK, NULL);
 615
 616                         g_io_add_watch_full(channel_output, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 617                                             editor_verbose_io_cb, ed, NULL);
 618                         g_io_channel_unref(channel_output);
 619
 620                         channel_error = g_io_channel_unix_new(standard_error);
 621                         g_io_channel_set_flags(channel_error, G_IO_FLAG_NONBLOCK, NULL);
 622
 623                         g_io_add_watch_full(channel_error, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 624                                             editor_verbose_io_cb, ed, NULL);
 625                         g_io_channel_unref(channel_error);
 626                         }
 627                 }
 628
 629         g_free(command);
 630
 631         return ed->flags & EDITOR_ERROR_MASK;
 632 }
 633
 634 static gint editor_command_next_start(EditorData *ed)
 635 {
 636         if (ed->vd) editor_verbose_window_fill(ed->vd, "\n", 1);
 637
 638         if (ed->list && ed->count < ed->total)
 639                 {
 640                 FileData *fd;
 641                 gint error;
 642
 643                 fd = ed->list->data;
 644
 645                 if (ed->vd)
 646                         {
 647                         editor_verbose_window_progress(ed, (ed->flags & EDITOR_FOR_EACH) ? fd->path : _("running..."));
 648                         }
 649                 ed->count++;
 650
 651                 error = editor_command_one(ed->command_template, ed->list, ed);
 652                 if (!error && ed->vd)
 653                         {
 654                         gtk_widget_set_sensitive(ed->vd->button_stop, (ed->list != NULL) );
 655                         if (ed->flags & EDITOR_FOR_EACH)
 656                                 {
 657                                 editor_verbose_window_fill(ed->vd, fd->path, strlen(fd->path));
 658                                 editor_verbose_window_fill(ed->vd, "\n", 1);
 659                                 }
 660                         }
 661
 662                 if (!error)
 663                         return 0;
 664                 else
 665                         /* command was not started, call the finish immediately */
 666                         return editor_command_next_finish(ed, 0);
 667                 }
 668
 669         /* everything is done */
 670         return editor_command_done(ed);
 671 }
 672
 673 static gint editor_command_next_finish(EditorData *ed, gint status)
 674 {
 675         gint cont = ed->stopping ? EDITOR_CB_SKIP : EDITOR_CB_CONTINUE;
 676
 677         if (status)
 678                 ed->flags |= EDITOR_ERROR_STATUS;
 679
 680         if (ed->flags & EDITOR_FOR_EACH)
 681                 {
 682                 /* handle the first element from the list */
 683                 GList *fd_element = ed->list;
 684
 685                 ed->list = g_list_remove_link(ed->list, fd_element);
 686                 if (ed->callback)
 687                         cont = ed->callback(ed->list ? ed : NULL, ed->flags, fd_element, ed->data);
 688                 filelist_free(fd_element);
 689                 }
 690         else
 691                 {
 692                 /* handle whole list */
 693                 if (ed->callback)
 694                         cont = ed->callback(NULL, ed->flags, ed->list, ed->data);
 695                 filelist_free(ed->list);
 696                 ed->list = NULL;
 697                 }
 698
 699         if (cont == EDITOR_CB_SUSPEND)
 700                 return ed->flags & EDITOR_ERROR_MASK;
 701         else if (cont == EDITOR_CB_SKIP)
 702                 return editor_command_done(ed);
 703         else
 704                 return editor_command_next_start(ed);
 705 }
 706
 707 static gint editor_command_done(EditorData *ed)
 708 {
 709         gint flags;
 710
 711         if (ed->vd)
 712                 {
 713                 const gchar *text;
 714
 715                 if (ed->count == ed->total)
 716                         {
 717                         text = _("done");
 718                         }
 719                 else
 720                         {
 721                         text = _("stopped by user");
 722                         }
 723                 editor_verbose_window_progress(ed, text);
 724                 editor_verbose_window_enable_close(ed->vd);
 725                 }
 726
 727         /* free the not-handled items */
 728         if (ed->list)
 729                 {
 730                 ed->flags |= EDITOR_ERROR_SKIPPED;
 731                 if (ed->callback) ed->callback(NULL, ed->flags, ed->list, ed->data);
 732                 filelist_free(ed->list);
 733                 ed->list = NULL;
 734                 }
 735
 736         ed->count = 0;
 737
 738         flags = ed->flags & EDITOR_ERROR_MASK;
 739
 740         if (!ed->vd) editor_data_free(ed);
 741
 742         return flags;
 743 }
 744
 745 void editor_resume(gpointer ed)
 746 {
 747         editor_command_next_start(ed);
 748 }
 749
 750 void editor_skip(gpointer ed)
 751 {
 752         editor_command_done(ed);
 753 }
 754
 755 static gint editor_command_start(const gchar *template, const gchar *text, GList *list, EditorCallback cb, gpointer data)
 756 {
 757         EditorData *ed;
 758         gint flags = editor_command_parse(template, NULL, NULL);
 759
 760         if (flags & EDITOR_ERROR_MASK) return flags & EDITOR_ERROR_MASK;
 761
 762         ed = g_new0(EditorData, 1);
 763         ed->list = filelist_copy(list);
 764         ed->flags = flags;
 765         ed->command_template = g_strdup(template);
 766         ed->total = (flags & EDITOR_SINGLE_COMMAND) ? 1 : g_list_length(list);
 767         ed->count = 0;
 768         ed->stopping = FALSE;
 769         ed->callback = cb;
 770         ed->data =  data;
 771
 772         if ((flags & EDITOR_VERBOSE_MULTI) && list && list->next)
 773                 flags |= EDITOR_VERBOSE;
 774
 775         if (flags & EDITOR_VERBOSE)
 776                 editor_verbose_window(ed, text);
 777
 778         editor_command_next_start(ed);
 779         /* errors from editor_command_next_start will be handled via callback */
 780         return flags & EDITOR_ERROR_MASK;
 781 }
 782
 783 static gint is_valid_editor_command(gint n)
 784 {
 785         return (n >= 0 && n < GQ_EDITOR_SLOTS
 786                 && options->editor_command[n]
 787                 && strlen(options->editor_command[n]) > 0);
 788 }
 789
 790 gint start_editor_from_filelist_full(gint n, GList *list, EditorCallback cb, gpointer data)
 791 {
 792         gchar *command;
 793         gint error;
 794
 795         if (!list) return FALSE;
 796         if (!is_valid_editor_command(n)) return FALSE;
 797
 798         command = g_locale_from_utf8(options->editor_command[n], -1, NULL, NULL, NULL);
 799         error = editor_command_start(command, options->editor_name[n], list, cb, data);
 800         g_free(command);
 801         return error;
 802 }
 803
 804 gint start_editor_from_filelist(gint n, GList *list)
 805 {
 806         return start_editor_from_filelist_full(n, list,  NULL, NULL);
 807 }
 808
 809 gint start_editor_from_file_full(gint n, FileData *fd, EditorCallback cb, gpointer data)
 810 {
 811         GList *list;
 812         gint error;
 813
 814         if (!fd) return FALSE;
 815
 816         list = g_list_append(NULL, fd);
 817         error = start_editor_from_filelist_full(n, list, cb, data);
 818         g_list_free(list);
 819         return error;
 820 }
 821
 822 gint start_editor_from_file(gint n, FileData *fd)
 823 {
 824         return start_editor_from_file_full(n, fd, NULL, NULL);
 825 }
 826
 827 gint editor_window_flag_set(gint n)
 828 {
 829         if (!is_valid_editor_command(n)) return TRUE;
 830
 831         return (editor_command_parse(options->editor_command[n], NULL, NULL) & EDITOR_KEEP_FS);
 832 }
 833
 834 const gchar *editor_get_error_str(gint flags)
 835 {
 836         if (flags & EDITOR_ERROR_EMPTY) return _("Editor template is empty.");
 837         if (flags & EDITOR_ERROR_SYNTAX) return _("Editor template has incorrect syntax.");
 838         if (flags & EDITOR_ERROR_INCOMPATIBLE) return _("Editor template uses incompatible macros.");
 839         if (flags & EDITOR_ERROR_NO_FILE) return _("Can't find matching file type.");
 840         if (flags & EDITOR_ERROR_CANT_EXEC) return _("Can't execute external editor.");
 841         if (flags & EDITOR_ERROR_STATUS) return _("External editor returned error status.");
 842         if (flags & EDITOR_ERROR_SKIPPED) return _("File was skipped.");
 843         return _("Unknown error.");
 844 }