src/editors.c

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