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 "filedata.h"
  18 #include "filefilter.h"
  19 #include "misc.h"
  20 #include "ui_fileops.h"
  21 #include "ui_spinner.h"
  22 #include "ui_utildlg.h"
  23 #include "utilops.h"
  24
  25 #include <errno.h>
  26
  27
  28 #define EDITOR_WINDOW_WIDTH 500
  29 #define EDITOR_WINDOW_HEIGHT 300
  30
  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 Editor editor_slot_defaults[GQ_EDITOR_SLOTS] = {
  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         { N_("Symlink"), "ln -s %p %d"},
  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_set_name(gint n, gchar *name)
  98 {
  99         if (n < 0 || n >= GQ_EDITOR_SLOTS) return;
 100
 101         g_free(options->editor[n].name);
 102
 103         options->editor[n].name = name ? utf8_validate_or_convert(name) : NULL;
 104 }
 105
 106 void editor_set_command(gint n, gchar *command)
 107 {
 108         if (n < 0 || n >= GQ_EDITOR_SLOTS) return;
 109
 110         g_free(options->editor[n].command);
 111         options->editor[n].command = command ? utf8_validate_or_convert(command) : NULL;
 112 }
 113
 114 void editor_reset_defaults(void)
 115 {
 116         gint i;
 117
 118         for (i = 0; i < GQ_EDITOR_SLOTS; i++)
 119                 {
 120                 editor_set_name(i, _(editor_slot_defaults[i].name));
 121                 editor_set_command(i, _(editor_slot_defaults[i].command));
 122                 }
 123 }
 124
 125 static void editor_verbose_data_free(EditorData *ed)
 126 {
 127         if (!ed->vd) return;
 128         g_free(ed->vd);
 129         ed->vd = NULL;
 130 }
 131
 132 static void editor_data_free(EditorData *ed)
 133 {
 134         editor_verbose_data_free(ed);
 135         g_free(ed->command_template);
 136         g_free(ed);
 137 }
 138
 139 static void editor_verbose_window_close(GenericDialog *gd, gpointer data)
 140 {
 141         EditorData *ed = data;
 142
 143         generic_dialog_close(gd);
 144         editor_verbose_data_free(ed);
 145         if (ed->pid == -1) editor_data_free(ed); /* the process has already terminated */
 146 }
 147
 148 static void editor_verbose_window_stop(GenericDialog *gd, gpointer data)
 149 {
 150         EditorData *ed = data;
 151         ed->stopping = TRUE;
 152         ed->count = 0;
 153         editor_verbose_window_progress(ed, _("stopping..."));
 154 }
 155
 156 static void editor_verbose_window_enable_close(EditorVerboseData *vd)
 157 {
 158         vd->gd->cancel_cb = editor_verbose_window_close;
 159
 160         spinner_set_interval(vd->spinner, -1);
 161         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 162         gtk_widget_set_sensitive(vd->button_close, TRUE);
 163 }
 164
 165 static EditorVerboseData *editor_verbose_window(EditorData *ed, const gchar *text)
 166 {
 167         EditorVerboseData *vd;
 168         GtkWidget *scrolled;
 169         GtkWidget *hbox;
 170         gchar *buf;
 171
 172         vd = g_new0(EditorVerboseData, 1);
 173
 174         vd->gd = file_util_gen_dlg(_("Edit command results"), GQ_WMCLASS, "editor_results",
 175                                    NULL, FALSE,
 176                                    NULL, ed);
 177         buf = g_strdup_printf(_("Output of %s"), text);
 178         generic_dialog_add_message(vd->gd, NULL, buf, NULL);
 179         g_free(buf);
 180         vd->button_stop = generic_dialog_add_button(vd->gd, GTK_STOCK_STOP, NULL,
 181                                                    editor_verbose_window_stop, FALSE);
 182         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 183         vd->button_close = generic_dialog_add_button(vd->gd, GTK_STOCK_CLOSE, NULL,
 184                                                     editor_verbose_window_close, TRUE);
 185         gtk_widget_set_sensitive(vd->button_close, FALSE);
 186
 187         scrolled = gtk_scrolled_window_new(NULL, NULL);
 188         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
 189         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled),
 190                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 191         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), scrolled, TRUE, TRUE, 5);
 192         gtk_widget_show(scrolled);
 193
 194         vd->text = gtk_text_view_new();
 195         gtk_text_view_set_editable(GTK_TEXT_VIEW(vd->text), FALSE);
 196         gtk_widget_set_size_request(vd->text, EDITOR_WINDOW_WIDTH, EDITOR_WINDOW_HEIGHT);
 197         gtk_container_add(GTK_CONTAINER(scrolled), vd->text);
 198         gtk_widget_show(vd->text);
 199
 200         hbox = gtk_hbox_new(FALSE, 0);
 201         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), hbox, FALSE, FALSE, 0);
 202         gtk_widget_show(hbox);
 203
 204         vd->progress = gtk_progress_bar_new();
 205         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(vd->progress), 0.0);
 206         gtk_box_pack_start(GTK_BOX(hbox), vd->progress, TRUE, TRUE, 0);
 207         gtk_widget_show(vd->progress);
 208
 209         vd->spinner = spinner_new(NULL, SPINNER_SPEED);
 210         gtk_box_pack_start(GTK_BOX(hbox), vd->spinner, FALSE, FALSE, 0);
 211         gtk_widget_show(vd->spinner);
 212
 213         gtk_widget_show(vd->gd->dialog);
 214
 215         ed->vd = vd;
 216         return vd;
 217 }
 218
 219 static void editor_verbose_window_fill(EditorVerboseData *vd, gchar *text, gint len)
 220 {
 221         GtkTextBuffer *buffer;
 222         GtkTextIter iter;
 223
 224         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(vd->text));
 225         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 226         gtk_text_buffer_insert(buffer, &iter, text, len);
 227 }
 228
 229 static void editor_verbose_window_progress(EditorData *ed, const gchar *text)
 230 {
 231         if (!ed->vd) return;
 232
 233         if (ed->total)
 234                 {
 235                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(ed->vd->progress), (gdouble)ed->count / ed->total);
 236                 }
 237
 238         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(ed->vd->progress), (text) ? text : "");
 239 }
 240
 241 static gboolean editor_verbose_io_cb(GIOChannel *source, GIOCondition condition, gpointer data)
 242 {
 243         EditorData *ed = data;
 244         gchar buf[512];
 245         gsize count;
 246
 247         if (condition & G_IO_IN)
 248                 {
 249                 while (g_io_channel_read_chars(source, buf, sizeof(buf), &count, NULL) == G_IO_STATUS_NORMAL)
 250                         {
 251                         if (!g_utf8_validate(buf, count, NULL))
 252                                 {
 253                                 gchar *utf8;
 254
 255                                 utf8 = g_locale_to_utf8(buf, count, NULL, NULL, NULL);
 256                                 if (utf8)
 257                                         {
 258                                         editor_verbose_window_fill(ed->vd, utf8, -1);
 259                                         g_free(utf8);
 260                                         }
 261                                 else
 262                                         {
 263                                         editor_verbose_window_fill(ed->vd, "Error converting text to valid utf8\n", -1);
 264                                         }
 265                                 }
 266                         else
 267                                 {
 268                                 editor_verbose_window_fill(ed->vd, buf, count);
 269                                 }
 270                         }
 271                 }
 272
 273         if (condition & (G_IO_ERR | G_IO_HUP))
 274                 {
 275                 g_io_channel_shutdown(source, TRUE, NULL);
 276                 return FALSE;
 277                 }
 278
 279         return TRUE;
 280 }
 281
 282 typedef enum {
 283         PATH_FILE,
 284         PATH_DEST
 285 } PathType;
 286
 287
 288 static gchar *editor_command_path_parse(const FileData *fd, PathType type, const gchar *extensions)
 289 {
 290         GString *string;
 291         gchar *pathl;
 292         const gchar *p = NULL;
 293
 294         string = g_string_new("");
 295
 296         if (type == PATH_FILE)
 297                 {
 298                 GList *ext_list = filter_to_list(extensions);
 299                 GList *work = ext_list;
 300
 301                 if (!work)
 302                         p = fd->path;
 303                 else
 304                         {
 305                         while (work)
 306                                 {
 307                                 GList *work2;
 308                                 gchar *ext = work->data;
 309                                 work = work->next;
 310
 311                                 if (strcmp(ext, "*") == 0 ||
 312                                     strcasecmp(ext, fd->extension) == 0)
 313                                         {
 314                                         p = fd->path;
 315                                         break;
 316                                         }
 317
 318                                 work2 = fd->sidecar_files;
 319                                 while (work2)
 320                                         {
 321                                         FileData *sfd = work2->data;
 322                                         work2 = work2->next;
 323
 324                                         if (strcasecmp(ext, sfd->extension) == 0)
 325                                                 {
 326                                                 p = sfd->path;
 327                                                 break;
 328                                                 }
 329                                         }
 330                                 if (p) break;
 331                                 }
 332                         string_list_free(ext_list);
 333                         if (!p) return NULL;
 334                         }
 335                 }
 336         else if (type == PATH_DEST)
 337                 {
 338                 if (fd->change && fd->change->dest)
 339                         p = fd->change->dest;
 340                 else
 341                         p = "";
 342                 }
 343
 344         while (*p != '\0')
 345                 {
 346                 /* must escape \, ", `, and $ to avoid problems,
 347                  * we assume system shell supports bash-like escaping
 348                  */
 349                 if (strchr("\\\"`$", *p) != NULL)
 350                         {
 351                         string = g_string_append_c(string, '\\');
 352                         }
 353                 string = g_string_append_c(string, *p);
 354                 p++;
 355                 }
 356
 357         pathl = path_from_utf8(string->str);
 358         g_string_free(string, TRUE);
 359
 360         return pathl;
 361 }
 362
 363
 364 /*
 365  * The supported macros for editor commands:
 366  *
 367  *   %f   first occurence replaced by quoted sequence of filenames, command is run once.
 368  *        only one occurence of this macro is supported.
 369  *        ([ls %f] results in [ls "file1" "file2" ... "lastfile"])
 370  *   %p   command is run for each filename in turn, each instance replaced with single filename.
 371  *        multiple occurences of this macro is supported for complex shell commands.
 372  *        This macro will BLOCK THE APPLICATION until it completes, since command is run once
 373  *        for every file in syncronous order. To avoid blocking add the %v macro, below.
 374  *        ([ls %p] results in [ls "file1"], [ls "file2"] ... [ls "lastfile"])
 375  *   none if no macro is supplied, the result is equivalent to "command %f"
 376  *        ([ls] results in [ls "file1" "file2" ... "lastfile"])
 377  *
 378  *  Only one of the macros %f or %p may be used in a given commmand.
 379  *
 380  *   %v   must be the first two characters[1] in a command, causes a window to display
 381  *        showing the output of the command(s).
 382  *   %V   same as %v except in the case of %p only displays a window for multiple files,
 383  *        operating on a single file is suppresses the output dialog.
 384  *
 385  *   %w   must be first two characters in a command, presence will disable full screen
 386  *        from exiting upon invocation.
 387  *
 388  *
 389  * [1] Note: %v,%V may also be preceded by "%w".
 390  */
 391
 392
 393 gint editor_command_parse(const gchar *template, GList *list, gchar **output)
 394 {
 395         gint flags = 0;
 396         const gchar *p = template;
 397         GString *result = NULL;
 398         gchar *extensions = NULL;
 399
 400         if (output)
 401                 result = g_string_new("");
 402
 403         if (!template || template[0] == '\0')
 404                 {
 405                 flags |= EDITOR_ERROR_EMPTY;
 406                 goto err;
 407                 }
 408
 409         /* skip leading whitespaces if any */
 410         while (g_ascii_isspace(*p)) p++;
 411
 412         /* global flags */
 413         while (*p == '%')
 414                 {
 415                 switch (*++p)
 416                         {
 417                         case 'w':
 418                                 flags |= EDITOR_KEEP_FS;
 419                                 p++;
 420                                 break;
 421                         case 'v':
 422                                 flags |= EDITOR_VERBOSE;
 423                                 p++;
 424                                 break;
 425                         case 'V':
 426                                 flags |= EDITOR_VERBOSE_MULTI;
 427                                 p++;
 428                                 break;
 429                         default:
 430                                 flags |= EDITOR_ERROR_SYNTAX;
 431                                 goto err;
 432                         }
 433                 }
 434
 435         /* skip whitespaces if any */
 436         while (g_ascii_isspace(*p)) p++;
 437
 438         /* command */
 439
 440         while (*p)
 441                 {
 442                 if (*p != '%')
 443                         {
 444                         if (output) result = g_string_append_c(result, *p);
 445                         }
 446                 else /* *p == '%' */
 447                         {
 448                         extensions = NULL;
 449                         gchar *pathl = NULL;
 450
 451                         p++;
 452
 453                         /* for example "%f" or "%{.crw;.raw;.cr2}f" */
 454                         if (*p == '{')
 455                                 {
 456                                 gchar *end;
 457
 458                                 p++;
 459                                 end = strchr(p, '}');
 460                                 if (!end)
 461                                         {
 462                                         flags |= EDITOR_ERROR_SYNTAX;
 463                                         goto err;
 464                                         }
 465
 466                                 extensions = g_strndup(p, end - p);
 467                                 p = end + 1;
 468                                 }
 469
 470                         switch (*p)
 471                                 {
 472                                 case 'd':
 473                                         flags |= EDITOR_DEST;
 474                                         /* fall through */
 475                                 case 'p':
 476                                         flags |= EDITOR_FOR_EACH;
 477                                         if (flags & EDITOR_SINGLE_COMMAND)
 478                                                 {
 479                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 480                                                 goto err;
 481                                                 }
 482                                         if (output)
 483                                                 {
 484                                                 /* use the first file from the list */
 485                                                 if (!list || !list->data)
 486                                                         {
 487                                                         flags |= EDITOR_ERROR_NO_FILE;
 488                                                         goto err;
 489                                                         }
 490                                                 pathl = editor_command_path_parse((FileData *)list->data,
 491                                                                                   (flags & EDITOR_DEST) ? PATH_DEST : PATH_FILE,
 492                                                                                   extensions);
 493                                                 if (!pathl)
 494                                                         {
 495                                                         flags |= EDITOR_ERROR_NO_FILE;
 496                                                         goto err;
 497                                                         }
 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                                         break;
 504
 505                                 case 'f':
 506                                         flags |= EDITOR_SINGLE_COMMAND;
 507                                         if (flags & (EDITOR_FOR_EACH | EDITOR_DEST))
 508                                                 {
 509                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 510                                                 goto err;
 511                                                 }
 512
 513                                         if (output)
 514                                                 {
 515                                                 /* use whole list */
 516                                                 GList *work = list;
 517                                                 gboolean ok = FALSE;
 518
 519                                                 while (work)
 520                                                         {
 521                                                         FileData *fd = work->data;
 522                                                         pathl = editor_command_path_parse(fd, PATH_FILE, extensions);
 523
 524                                                         if (pathl)
 525                                                                 {
 526                                                                 ok = TRUE;
 527                                                                 if (work != list) g_string_append_c(result, ' ');
 528                                                                 result = g_string_append_c(result, '"');
 529                                                                 result = g_string_append(result, pathl);
 530                                                                 g_free(pathl);
 531                                                                 result = g_string_append_c(result, '"');
 532                                                                 }
 533                                                         work = work->next;
 534                                                         }
 535                                                 if (!ok)
 536                                                         {
 537                                                         flags |= EDITOR_ERROR_NO_FILE;
 538                                                         goto err;
 539                                                         }
 540                                                 }
 541                                         break;
 542                                 case '%':
 543                                         /* %% = % escaping */
 544                                         if (output) result = g_string_append_c(result, *p);
 545                                         break;
 546                                 default:
 547                                         flags |= EDITOR_ERROR_SYNTAX;
 548                                         goto err;
 549                                 }
 550                         if (extensions) g_free(extensions);
 551                         extensions = NULL;
 552                         }
 553                 p++;
 554                 }
 555
 556         if (output) *output = g_string_free(result, FALSE);
 557         return flags;
 558
 559
 560 err:
 561         if (output)
 562                 {
 563                 g_string_free(result, TRUE);
 564                 *output = NULL;
 565                 }
 566         if (extensions) g_free(extensions);
 567         return flags;
 568 }
 569
 570 static void editor_child_exit_cb (GPid pid, gint status, gpointer data)
 571 {
 572         EditorData *ed = data;
 573         g_spawn_close_pid(pid);
 574         ed->pid = -1;
 575
 576         editor_command_next_finish(ed, status);
 577 }
 578
 579
 580 static gint editor_command_one(const gchar *template, GList *list, EditorData *ed)
 581 {
 582         gchar *command;
 583         FileData *fd = list->data;
 584         GPid pid;
 585         gint standard_output;
 586         gint standard_error;
 587         gboolean ok;
 588
 589         ed->pid = -1;
 590         ed->flags = editor_command_parse(template, list, &command);
 591
 592         ok = !(ed->flags & EDITOR_ERROR_MASK);
 593
 594         if (ok)
 595                 {
 596                 ok = (options->shell.path && *options->shell.path);
 597                 if (!ok) log_printf("ERROR: empty shell command\n");
 598
 599                 if (ok)
 600                         {
 601                         ok = (access(options->shell.path, X_OK) == 0);
 602                         if (!ok) log_printf("ERROR: cannot execute shell command '%s'\n", options->shell.path);
 603                         }
 604
 605                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 606                 }
 607
 608         if (ok)
 609                 {
 610                 gchar *working_directory;
 611                 gchar *args[4];
 612                 guint n = 0;
 613
 614                 working_directory = remove_level_from_path(fd->path);
 615                 args[n++] = options->shell.path;
 616                 if (options->shell.options && *options->shell.options)
 617                         args[n++] = options->shell.options;
 618                 args[n++] = command;
 619                 args[n] = NULL;
 620
 621                 ok = g_spawn_async_with_pipes(working_directory, args, NULL,
 622                                       G_SPAWN_DO_NOT_REAP_CHILD, /* GSpawnFlags */
 623                                       NULL, NULL,
 624                                       &pid,
 625                                       NULL,
 626                                       ed->vd ? &standard_output : NULL,
 627                                       ed->vd ? &standard_error : NULL,
 628                                       NULL);
 629
 630                 g_free(working_directory);
 631
 632                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 633                 }
 634
 635         if (ok)
 636                 {
 637                 g_child_watch_add(pid, editor_child_exit_cb, ed);
 638                 ed->pid = pid;
 639                 }
 640
 641         if (ed->vd)
 642                 {
 643                 if (!ok)
 644                         {
 645                         gchar *buf;
 646
 647                         buf = g_strdup_printf(_("Failed to run command:\n%s\n"), template);
 648                         editor_verbose_window_fill(ed->vd, buf, strlen(buf));
 649                         g_free(buf);
 650
 651                         }
 652                 else
 653                         {
 654                         GIOChannel *channel_output;
 655                         GIOChannel *channel_error;
 656
 657                         channel_output = g_io_channel_unix_new(standard_output);
 658                         g_io_channel_set_flags(channel_output, G_IO_FLAG_NONBLOCK, NULL);
 659                         g_io_channel_set_encoding(channel_output, NULL, NULL);
 660
 661                         g_io_add_watch_full(channel_output, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 662                                             editor_verbose_io_cb, ed, NULL);
 663                         g_io_channel_unref(channel_output);
 664
 665                         channel_error = g_io_channel_unix_new(standard_error);
 666                         g_io_channel_set_flags(channel_error, G_IO_FLAG_NONBLOCK, NULL);
 667                         g_io_channel_set_encoding(channel_error, NULL, NULL);
 668
 669                         g_io_add_watch_full(channel_error, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 670                                             editor_verbose_io_cb, ed, NULL);
 671                         g_io_channel_unref(channel_error);
 672                         }
 673                 }
 674
 675         g_free(command);
 676
 677         return ed->flags & EDITOR_ERROR_MASK;
 678 }
 679
 680 static gint editor_command_next_start(EditorData *ed)
 681 {
 682         if (ed->vd) editor_verbose_window_fill(ed->vd, "\n", 1);
 683
 684         if (ed->list && ed->count < ed->total)
 685                 {
 686                 FileData *fd;
 687                 gint error;
 688
 689                 fd = ed->list->data;
 690
 691                 if (ed->vd)
 692                         {
 693                         editor_verbose_window_progress(ed, (ed->flags & EDITOR_FOR_EACH) ? fd->path : _("running..."));
 694                         }
 695                 ed->count++;
 696
 697                 error = editor_command_one(ed->command_template, ed->list, ed);
 698                 if (!error && ed->vd)
 699                         {
 700                         gtk_widget_set_sensitive(ed->vd->button_stop, (ed->list != NULL) );
 701                         if (ed->flags & EDITOR_FOR_EACH)
 702                                 {
 703                                 editor_verbose_window_fill(ed->vd, fd->path, strlen(fd->path));
 704                                 editor_verbose_window_fill(ed->vd, "\n", 1);
 705                                 }
 706                         }
 707
 708                 if (!error)
 709                         return 0;
 710                 else
 711                         /* command was not started, call the finish immediately */
 712                         return editor_command_next_finish(ed, 0);
 713                 }
 714
 715         /* everything is done */
 716         return editor_command_done(ed);
 717 }
 718
 719 static gint editor_command_next_finish(EditorData *ed, gint status)
 720 {
 721         gint cont = ed->stopping ? EDITOR_CB_SKIP : EDITOR_CB_CONTINUE;
 722
 723         if (status)
 724                 ed->flags |= EDITOR_ERROR_STATUS;
 725
 726         if (ed->flags & EDITOR_FOR_EACH)
 727                 {
 728                 /* handle the first element from the list */
 729                 GList *fd_element = ed->list;
 730
 731                 ed->list = g_list_remove_link(ed->list, fd_element);
 732                 if (ed->callback)
 733                         {
 734                         cont = ed->callback(ed->list ? ed : NULL, ed->flags, fd_element, ed->data);
 735                         if (ed->stopping && cont == EDITOR_CB_CONTINUE) cont = EDITOR_CB_SKIP;
 736                         }
 737                 filelist_free(fd_element);
 738                 }
 739         else
 740                 {
 741                 /* handle whole list */
 742                 if (ed->callback)
 743                         cont = ed->callback(NULL, ed->flags, ed->list, ed->data);
 744                 filelist_free(ed->list);
 745                 ed->list = NULL;
 746                 }
 747
 748         if (cont == EDITOR_CB_SUSPEND)
 749                 return ed->flags & EDITOR_ERROR_MASK;
 750         else if (cont == EDITOR_CB_SKIP)
 751                 return editor_command_done(ed);
 752         else
 753                 return editor_command_next_start(ed);
 754 }
 755
 756 static gint editor_command_done(EditorData *ed)
 757 {
 758         gint flags;
 759
 760         if (ed->vd)
 761                 {
 762                 const gchar *text;
 763
 764                 if (ed->count == ed->total)
 765                         {
 766                         text = _("done");
 767                         }
 768                 else
 769                         {
 770                         text = _("stopped by user");
 771                         }
 772                 editor_verbose_window_progress(ed, text);
 773                 editor_verbose_window_enable_close(ed->vd);
 774                 }
 775
 776         /* free the not-handled items */
 777         if (ed->list)
 778                 {
 779                 ed->flags |= EDITOR_ERROR_SKIPPED;
 780                 if (ed->callback) ed->callback(NULL, ed->flags, ed->list, ed->data);
 781                 filelist_free(ed->list);
 782                 ed->list = NULL;
 783                 }
 784
 785         ed->count = 0;
 786
 787         flags = ed->flags & EDITOR_ERROR_MASK;
 788
 789         if (!ed->vd) editor_data_free(ed);
 790
 791         return flags;
 792 }
 793
 794 void editor_resume(gpointer ed)
 795 {
 796         editor_command_next_start(ed);
 797 }
 798
 799 void editor_skip(gpointer ed)
 800 {
 801         editor_command_done(ed);
 802 }
 803
 804 static gint editor_command_start(const gchar *template, const gchar *text, GList *list, EditorCallback cb, gpointer data)
 805 {
 806         EditorData *ed;
 807         gint flags = editor_command_parse(template, NULL, NULL);
 808
 809         if (flags & EDITOR_ERROR_MASK) return flags & EDITOR_ERROR_MASK;
 810
 811         ed = g_new0(EditorData, 1);
 812         ed->list = filelist_copy(list);
 813         ed->flags = flags;
 814         ed->command_template = g_strdup(template);
 815         ed->total = (flags & EDITOR_SINGLE_COMMAND) ? 1 : g_list_length(list);
 816         ed->count = 0;
 817         ed->stopping = FALSE;
 818         ed->callback = cb;
 819         ed->data =  data;
 820
 821         if ((flags & EDITOR_VERBOSE_MULTI) && list && list->next)
 822                 flags |= EDITOR_VERBOSE;
 823
 824         if (flags & EDITOR_VERBOSE)
 825                 editor_verbose_window(ed, text);
 826
 827         editor_command_next_start(ed);
 828         /* errors from editor_command_next_start will be handled via callback */
 829         return flags & EDITOR_ERROR_MASK;
 830 }
 831
 832 gboolean is_valid_editor_command(gint n)
 833 {
 834         return (n >= 0 && n < GQ_EDITOR_SLOTS
 835                 && options->editor[n].command
 836                 && strlen(options->editor[n].command) > 0);
 837 }
 838
 839 gint start_editor_from_filelist_full(gint n, GList *list, EditorCallback cb, gpointer data)
 840 {
 841         gchar *command;
 842         gint error;
 843
 844         if (!list) return FALSE;
 845         if (!is_valid_editor_command(n)) return FALSE;
 846
 847         command = g_locale_from_utf8(options->editor[n].command, -1, NULL, NULL, NULL);
 848         error = editor_command_start(command, options->editor[n].name, list, cb, data);
 849         g_free(command);
 850
 851         if (n < GQ_EDITOR_GENERIC_SLOTS && (error & EDITOR_ERROR_MASK))
 852                 {
 853                 gchar *text = g_strdup_printf(_("%s\n#%d \"%s\":\n%s"), editor_get_error_str(error), n+1,
 854                                               options->editor[n].name, options->editor[n].command);
 855
 856                 file_util_warning_dialog(_("Invalid editor command"), text, GTK_STOCK_DIALOG_ERROR, NULL);
 857                 g_free(text);
 858                 }
 859
 860         return error;
 861 }
 862
 863 gint start_editor_from_filelist(gint n, GList *list)
 864 {
 865         return start_editor_from_filelist_full(n, list,  NULL, NULL);
 866 }
 867
 868 gint start_editor_from_file_full(gint n, FileData *fd, EditorCallback cb, gpointer data)
 869 {
 870         GList *list;
 871         gint error;
 872
 873         if (!fd) return FALSE;
 874
 875         list = g_list_append(NULL, fd);
 876         error = start_editor_from_filelist_full(n, list, cb, data);
 877         g_list_free(list);
 878         return error;
 879 }
 880
 881 gint start_editor_from_file(gint n, FileData *fd)
 882 {
 883         return start_editor_from_file_full(n, fd, NULL, NULL);
 884 }
 885
 886 gint editor_window_flag_set(gint n)
 887 {
 888         if (!is_valid_editor_command(n)) return TRUE;
 889
 890         return (editor_command_parse(options->editor[n].command, NULL, NULL) & EDITOR_KEEP_FS);
 891 }
 892
 893 gint editor_is_filter(gint n)
 894 {
 895         if (!is_valid_editor_command(n)) return FALSE;
 896
 897         return (editor_command_parse(options->editor[n].command, NULL, NULL) & EDITOR_DEST);
 898 }
 899
 900 const gchar *editor_get_error_str(gint flags)
 901 {
 902         if (flags & EDITOR_ERROR_EMPTY) return _("Editor template is empty.");
 903         if (flags & EDITOR_ERROR_SYNTAX) return _("Editor template has incorrect syntax.");
 904         if (flags & EDITOR_ERROR_INCOMPATIBLE) return _("Editor template uses incompatible macros.");
 905         if (flags & EDITOR_ERROR_NO_FILE) return _("Can't find matching file type.");
 906         if (flags & EDITOR_ERROR_CANT_EXEC) return _("Can't execute external editor.");
 907         if (flags & EDITOR_ERROR_STATUS) return _("External editor returned error status.");
 908         if (flags & EDITOR_ERROR_SKIPPED) return _("File was skipped.");
 909         return _("Unknown error.");
 910 }
 911
 912 const gchar *editor_get_name(gint n)
 913 {
 914         if (!is_valid_editor_command(n)) return NULL;
 915
 916         if (options->editor[n].name && strlen(options->editor[n].name) > 0)
 917                 return options->editor[n].name;
 918
 919         return _("(unknown)");
 920 }