src/editors.c

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