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 "utilops.h"
  20 #include "ui_fileops.h"
  21 #include "ui_spinner.h"
  22 #include "ui_utildlg.h"
  23
  24 #include <errno.h>
  25
  26
  27 #define EDITOR_WINDOW_WIDTH 500
  28 #define EDITOR_WINDOW_HEIGHT 300
  29
  30
  31
  32 typedef struct _EditorVerboseData EditorVerboseData;
  33 struct _EditorVerboseData {
  34         GenericDialog *gd;
  35         GtkWidget *button_close;
  36         GtkWidget *button_stop;
  37         GtkWidget *text;
  38         GtkWidget *progress;
  39         GtkWidget *spinner;
  40 };
  41
  42 typedef struct _EditorData EditorData;
  43 struct _EditorData {
  44         gint flags;
  45         GPid pid;
  46         gchar *command_template;
  47         GList *list;
  48         gint count;
  49         gint total;
  50         gboolean stopping;
  51         EditorVerboseData *vd;
  52         EditorCallback callback;
  53         gpointer data;
  54 };
  55
  56
  57 static Editor editor_slot_defaults[GQ_EDITOR_SLOTS] = {
  58         { N_("The Gimp"), "gimp-remote %{.cr2;.crw;.nef;.raw;*}f" },
  59         { N_("XV"), "xv %f" },
  60         { N_("Xpaint"), "xpaint %f" },
  61         { N_("UFraw"), "ufraw %{.cr2;.crw;.nef;.raw}p" },
  62         { N_("Add XMP sidecar"), "%vFILE=%{.cr2;.crw;.nef;.raw}p;XMP=`echo \"$FILE\"|sed -e 's|\\.[^.]*$|.xmp|'`; exiftool -tagsfromfile \"$FILE\" \"$XMP\"" },
  63         { N_("Symlink"), "ln -s %p %d"},
  64         { NULL, NULL },
  65         { NULL, NULL },
  66         { 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" },
  67         { 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" },
  68         /* special slots */
  69 #if 1
  70         /* for testing */
  71         { N_("External Copy command"), "%vset -x;cp %p %d" },
  72         { N_("External Move command"), "%vset -x;mv %p %d" },
  73         { N_("External Rename command"), "%vset -x;mv %p %d" },
  74         { N_("External Delete command"), NULL },
  75         { N_("External New Folder command"), NULL },
  76 #else
  77         { N_("External Copy command"), NULL },
  78         { N_("External Move command"), NULL },
  79         { N_("External Rename command"), NULL },
  80         { N_("External Delete command"), NULL },
  81         { N_("External New Folder command"), NULL },
  82 #endif
  83 };
  84
  85 static void editor_verbose_window_progress(EditorData *ed, const gchar *text);
  86 static gint editor_command_next_start(EditorData *ed);
  87 static gint editor_command_next_finish(EditorData *ed, gint status);
  88 static gint editor_command_done(EditorData *ed);
  89
  90 /*
  91  *-----------------------------------------------------------------------------
  92  * external editor routines
  93  *-----------------------------------------------------------------------------
  94  */
  95
  96 void editor_set_name(gint n, gchar *name)
  97 {
  98         if (n < 0 || n >= GQ_EDITOR_SLOTS) return;
  99
 100         g_free(options->editor[n].name);
 101
 102         options->editor[n].name = name ? utf8_validate_or_convert(name) : NULL;
 103 }
 104
 105 void editor_set_command(gint n, gchar *command)
 106 {
 107         if (n < 0 || n >= GQ_EDITOR_SLOTS) return;
 108
 109         g_free(options->editor[n].command);
 110         options->editor[n].command = command ? utf8_validate_or_convert(command) : NULL;
 111 }
 112
 113 void editor_reset_defaults(void)
 114 {
 115         gint i;
 116
 117         for (i = 0; i < GQ_EDITOR_SLOTS; i++)
 118                 {
 119                 editor_set_name(i, _(editor_slot_defaults[i].name));
 120                 editor_set_command(i, _(editor_slot_defaults[i].command));
 121                 }
 122 }
 123
 124 static void editor_verbose_data_free(EditorData *ed)
 125 {
 126         if (!ed->vd) return;
 127         g_free(ed->vd);
 128         ed->vd = NULL;
 129 }
 130
 131 static void editor_data_free(EditorData *ed)
 132 {
 133         editor_verbose_data_free(ed);
 134         g_free(ed->command_template);
 135         g_free(ed);
 136 }
 137
 138 static void editor_verbose_window_close(GenericDialog *gd, gpointer data)
 139 {
 140         EditorData *ed = data;
 141
 142         generic_dialog_close(gd);
 143         editor_verbose_data_free(ed);
 144         if (ed->pid == -1) editor_data_free(ed); /* the process has already terminated */
 145 }
 146
 147 static void editor_verbose_window_stop(GenericDialog *gd, gpointer data)
 148 {
 149         EditorData *ed = data;
 150         ed->stopping = TRUE;
 151         ed->count = 0;
 152         editor_verbose_window_progress(ed, _("stopping..."));
 153 }
 154
 155 static void editor_verbose_window_enable_close(EditorVerboseData *vd)
 156 {
 157         vd->gd->cancel_cb = editor_verbose_window_close;
 158
 159         spinner_set_interval(vd->spinner, -1);
 160         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 161         gtk_widget_set_sensitive(vd->button_close, TRUE);
 162 }
 163
 164 static EditorVerboseData *editor_verbose_window(EditorData *ed, const gchar *text)
 165 {
 166         EditorVerboseData *vd;
 167         GtkWidget *scrolled;
 168         GtkWidget *hbox;
 169         gchar *buf;
 170
 171         vd = g_new0(EditorVerboseData, 1);
 172
 173         vd->gd = file_util_gen_dlg(_("Edit command results"), GQ_WMCLASS, "editor_results",
 174                                    NULL, FALSE,
 175                                    NULL, ed);
 176         buf = g_strdup_printf(_("Output of %s"), text);
 177         generic_dialog_add_message(vd->gd, NULL, buf, NULL);
 178         g_free(buf);
 179         vd->button_stop = generic_dialog_add_button(vd->gd, GTK_STOCK_STOP, NULL,
 180                                                    editor_verbose_window_stop, FALSE);
 181         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 182         vd->button_close = generic_dialog_add_button(vd->gd, GTK_STOCK_CLOSE, NULL,
 183                                                     editor_verbose_window_close, TRUE);
 184         gtk_widget_set_sensitive(vd->button_close, FALSE);
 185
 186         scrolled = gtk_scrolled_window_new(NULL, NULL);
 187         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
 188         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled),
 189                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 190         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), scrolled, TRUE, TRUE, 5);
 191         gtk_widget_show(scrolled);
 192
 193         vd->text = gtk_text_view_new();
 194         gtk_text_view_set_editable(GTK_TEXT_VIEW(vd->text), FALSE);
 195         gtk_widget_set_size_request(vd->text, EDITOR_WINDOW_WIDTH, EDITOR_WINDOW_HEIGHT);
 196         gtk_container_add(GTK_CONTAINER(scrolled), vd->text);
 197         gtk_widget_show(vd->text);
 198
 199         hbox = gtk_hbox_new(FALSE, 0);
 200         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), hbox, FALSE, FALSE, 0);
 201         gtk_widget_show(hbox);
 202
 203         vd->progress = gtk_progress_bar_new();
 204         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(vd->progress), 0.0);
 205         gtk_box_pack_start(GTK_BOX(hbox), vd->progress, TRUE, TRUE, 0);
 206         gtk_widget_show(vd->progress);
 207
 208         vd->spinner = spinner_new(NULL, SPINNER_SPEED);
 209         gtk_box_pack_start(GTK_BOX(hbox), vd->spinner, FALSE, FALSE, 0);
 210         gtk_widget_show(vd->spinner);
 211
 212         gtk_widget_show(vd->gd->dialog);
 213
 214         ed->vd = vd;
 215         return vd;
 216 }
 217
 218 static void editor_verbose_window_fill(EditorVerboseData *vd, gchar *text, gint len)
 219 {
 220         GtkTextBuffer *buffer;
 221         GtkTextIter iter;
 222
 223         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(vd->text));
 224         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 225         gtk_text_buffer_insert(buffer, &iter, text, len);
 226 }
 227
 228 static void editor_verbose_window_progress(EditorData *ed, const gchar *text)
 229 {
 230         if (!ed->vd) return;
 231
 232         if (ed->total)
 233                 {
 234                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(ed->vd->progress), (gdouble)ed->count / ed->total);
 235                 }
 236
 237         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(ed->vd->progress), (text) ? text : "");
 238 }
 239
 240 static gboolean editor_verbose_io_cb(GIOChannel *source, GIOCondition condition, gpointer data)
 241 {
 242         EditorData *ed = data;
 243         gchar buf[512];
 244         gsize count;
 245
 246         if (condition & G_IO_IN)
 247                 {
 248                 while (g_io_channel_read_chars(source, buf, sizeof(buf), &count, NULL) == G_IO_STATUS_NORMAL)
 249                         {
 250                         if (!g_utf8_validate(buf, count, NULL))
 251                                 {
 252                                 gchar *utf8;
 253
 254                                 utf8 = g_locale_to_utf8(buf, count, NULL, NULL, NULL);
 255                                 if (utf8)
 256                                         {
 257                                         editor_verbose_window_fill(ed->vd, utf8, -1);
 258                                         g_free(utf8);
 259                                         }
 260                                 else
 261                                         {
 262                                         editor_verbose_window_fill(ed->vd, "Error converting text to valid utf8\n", -1);
 263                                         }
 264                                 }
 265                         else
 266                                 {
 267                                 editor_verbose_window_fill(ed->vd, buf, count);
 268                                 }
 269                         }
 270                 }
 271
 272         if (condition & (G_IO_ERR | G_IO_HUP))
 273                 {
 274                 g_io_channel_shutdown(source, TRUE, NULL);
 275                 return FALSE;
 276                 }
 277
 278         return TRUE;
 279 }
 280
 281 typedef enum {
 282         PATH_FILE,
 283         PATH_DEST
 284 } PathType;
 285
 286
 287 static gchar *editor_command_path_parse(const FileData *fd, PathType type, const gchar *extensions)
 288 {
 289         GString *string;
 290         gchar *pathl;
 291         const gchar *p = NULL;
 292
 293         string = g_string_new("");
 294
 295         if (type == PATH_FILE)
 296                 {
 297                 GList *ext_list = filter_to_list(extensions);
 298                 GList *work = ext_list;
 299
 300                 if (!work)
 301                         p = fd->path;
 302                 else
 303                         {
 304                         while (work)
 305                                 {
 306                                 GList *work2;
 307                                 gchar *ext = work->data;
 308                                 work = work->next;
 309
 310                                 if (strcmp(ext, "*") == 0 ||
 311                                     strcasecmp(ext, fd->extension) == 0)
 312                                         {
 313                                         p = fd->path;
 314                                         break;
 315                                         }
 316
 317                                 work2 = fd->sidecar_files;
 318                                 while (work2)
 319                                         {
 320                                         FileData *sfd = work2->data;
 321                                         work2 = work2->next;
 322
 323                                         if (strcasecmp(ext, sfd->extension) == 0)
 324                                                 {
 325                                                 p = sfd->path;
 326                                                 break;
 327                                                 }
 328                                         }
 329                                 if (p) break;
 330                                 }
 331                         string_list_free(ext_list);
 332                         if (!p) return NULL;
 333                         }
 334                 }
 335         else if (type == PATH_DEST)
 336                 {
 337                 if (fd->change && fd->change->dest)
 338                         p = fd->change->dest;
 339                 else
 340                         p = "";
 341                 }
 342
 343         while (*p != '\0')
 344                 {
 345                 /* must escape \, ", `, and $ to avoid problems,
 346                  * we assume system shell supports bash-like escaping
 347                  */
 348                 if (strchr("\\\"`$", *p) != NULL)
 349                         {
 350                         string = g_string_append_c(string, '\\');
 351                         }
 352                 string = g_string_append_c(string, *p);
 353                 p++;
 354                 }
 355
 356         pathl = path_from_utf8(string->str);
 357         g_string_free(string, TRUE);
 358
 359         return pathl;
 360 }
 361
 362
 363 /*
 364  * The supported macros for editor commands:
 365  *
 366  *   %f   first occurence replaced by quoted sequence of filenames, command is run once.
 367  *        only one occurence of this macro is supported.
 368  *        ([ls %f] results in [ls "file1" "file2" ... "lastfile"])
 369  *   %p   command is run for each filename in turn, each instance replaced with single filename.
 370  *        multiple occurences of this macro is supported for complex shell commands.
 371  *        This macro will BLOCK THE APPLICATION until it completes, since command is run once
 372  *        for every file in syncronous order. To avoid blocking add the %v macro, below.
 373  *        ([ls %p] results in [ls "file1"], [ls "file2"] ... [ls "lastfile"])
 374  *   none if no macro is supplied, the result is equivalent to "command %f"
 375  *        ([ls] results in [ls "file1" "file2" ... "lastfile"])
 376  *
 377  *  Only one of the macros %f or %p may be used in a given commmand.
 378  *
 379  *   %v   must be the first two characters[1] in a command, causes a window to display
 380  *        showing the output of the command(s).
 381  *   %V   same as %v except in the case of %p only displays a window for multiple files,
 382  *        operating on a single file is suppresses the output dialog.
 383  *
 384  *   %w   must be first two characters in a command, presence will disable full screen
 385  *        from exiting upon invocation.
 386  *
 387  *
 388  * [1] Note: %v,%V may also be preceded by "%w".
 389  */
 390
 391
 392 gint editor_command_parse(const gchar *template, GList *list, gchar **output)
 393 {
 394         gint flags = 0;
 395         const gchar *p = template;
 396         GString *result = NULL;
 397         gchar *extensions = NULL;
 398
 399         if (output)
 400                 result = g_string_new("");
 401
 402         if (!template || template[0] == '\0')
 403                 {
 404                 flags |= EDITOR_ERROR_EMPTY;
 405                 goto err;
 406                 }
 407
 408         /* skip leading whitespaces if any */
 409         while (g_ascii_isspace(*p)) p++;
 410
 411         /* global flags */
 412         while (*p == '%')
 413                 {
 414                 switch (*++p)
 415                         {
 416                         case 'w':
 417                                 flags |= EDITOR_KEEP_FS;
 418                                 p++;
 419                                 break;
 420                         case 'v':
 421                                 flags |= EDITOR_VERBOSE;
 422                                 p++;
 423                                 break;
 424                         case 'V':
 425                                 flags |= EDITOR_VERBOSE_MULTI;
 426                                 p++;
 427                                 break;
 428                         default:
 429                                 flags |= EDITOR_ERROR_SYNTAX;
 430                                 goto err;
 431                         }
 432                 }
 433
 434         /* skip whitespaces if any */
 435         while (g_ascii_isspace(*p)) p++;
 436
 437         /* command */
 438
 439         while (*p)
 440                 {
 441                 if (*p != '%')
 442                         {
 443                         if (output) result = g_string_append_c(result, *p);
 444                         }
 445                 else /* *p == '%' */
 446                         {
 447                         extensions = NULL;
 448                         gchar *pathl = NULL;
 449
 450                         p++;
 451
 452                         /* for example "%f" or "%{.crw;.raw;.cr2}f" */
 453                         if (*p == '{')
 454                                 {
 455                                 gchar *end;
 456
 457                                 p++;
 458                                 end = strchr(p, '}');
 459                                 if (!end)
 460                                         {
 461                                         flags |= EDITOR_ERROR_SYNTAX;
 462                                         goto err;
 463                                         }
 464
 465                                 extensions = g_strndup(p, end - p);
 466                                 p = end + 1;
 467                                 }
 468
 469                         switch (*p)
 470                                 {
 471                                 case 'd':
 472                                         flags |= EDITOR_DEST;
 473                                         /* fall through */
 474                                 case 'p':
 475                                         flags |= EDITOR_FOR_EACH;
 476                                         if (flags & EDITOR_SINGLE_COMMAND)
 477                                                 {
 478                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 479                                                 goto err;
 480                                                 }
 481                                         if (output)
 482                                                 {
 483                                                 /* use the first file from the list */
 484                                                 if (!list || !list->data)
 485                                                         {
 486                                                         flags |= EDITOR_ERROR_NO_FILE;
 487                                                         goto err;
 488                                                         }
 489                                                 pathl = editor_command_path_parse((FileData *)list->data,
 490                                                                                   (flags & EDITOR_DEST) ? PATH_DEST : PATH_FILE,
 491                                                                                   extensions);
 492                                                 if (!pathl)
 493                                                         {
 494                                                         flags |= EDITOR_ERROR_NO_FILE;
 495                                                         goto err;
 496                                                         }
 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                                         break;
 503
 504                                 case 'f':
 505                                         flags |= EDITOR_SINGLE_COMMAND;
 506                                         if (flags & (EDITOR_FOR_EACH | EDITOR_DEST))
 507                                                 {
 508                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 509                                                 goto err;
 510                                                 }
 511
 512                                         if (output)
 513                                                 {
 514                                                 /* use whole list */
 515                                                 GList *work = list;
 516                                                 gboolean ok = FALSE;
 517
 518                                                 while (work)
 519                                                         {
 520                                                         FileData *fd = work->data;
 521                                                         pathl = editor_command_path_parse(fd, PATH_FILE, extensions);
 522
 523                                                         if (pathl)
 524                                                                 {
 525                                                                 ok = TRUE;
 526                                                                 if (work != list) g_string_append_c(result, ' ');
 527                                                                 result = g_string_append_c(result, '"');
 528                                                                 result = g_string_append(result, pathl);
 529                                                                 g_free(pathl);
 530                                                                 result = g_string_append_c(result, '"');
 531                                                                 }
 532                                                         work = work->next;
 533                                                         }
 534                                                 if (!ok)
 535                                                         {
 536                                                         flags |= EDITOR_ERROR_NO_FILE;
 537                                                         goto err;
 538                                                         }
 539                                                 }
 540                                         break;
 541                                 case '%':
 542                                         /* %% = % escaping */
 543                                         if (output) result = g_string_append_c(result, *p);
 544                                         break;
 545                                 default:
 546                                         flags |= EDITOR_ERROR_SYNTAX;
 547                                         goto err;
 548                                 }
 549                         if (extensions) g_free(extensions);
 550                         extensions = NULL;
 551                         }
 552                 p++;
 553                 }
 554
 555         if (output) *output = g_string_free(result, FALSE);
 556         return flags;
 557
 558
 559 err:
 560         if (output)
 561                 {
 562                 g_string_free(result, TRUE);
 563                 *output = NULL;
 564                 }
 565         if (extensions) g_free(extensions);
 566         return flags;
 567 }
 568
 569 static void editor_child_exit_cb (GPid pid, gint status, gpointer data)
 570 {
 571         EditorData *ed = data;
 572         g_spawn_close_pid(pid);
 573         ed->pid = -1;
 574
 575         editor_command_next_finish(ed, status);
 576 }
 577
 578
 579 static gint editor_command_one(const gchar *template, GList *list, EditorData *ed)
 580 {
 581         gchar *command;
 582         FileData *fd = list->data;
 583         GPid pid;
 584         gint standard_output;
 585         gint standard_error;
 586         gboolean ok;
 587
 588         ed->pid = -1;
 589         ed->flags = editor_command_parse(template, list, &command);
 590
 591         ok = !(ed->flags & EDITOR_ERROR_MASK);
 592
 593         if (ok)
 594                 {
 595                 ok = (options->shell.path && *options->shell.path);
 596                 if (!ok) log_printf("ERROR: empty shell command\n");
 597
 598                 if (ok)
 599                         {
 600                         ok = (access(options->shell.path, X_OK) == 0);
 601                         if (!ok) log_printf("ERROR: cannot execute shell command '%s'\n", options->shell.path);
 602                         }
 603
 604                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 605                 }
 606
 607         if (ok)
 608                 {
 609                 gchar *working_directory;
 610                 gchar *args[4];
 611                 guint n = 0;
 612
 613                 working_directory = remove_level_from_path(fd->path);
 614                 args[n++] = options->shell.path;
 615                 if (options->shell.options && *options->shell.options)
 616                         args[n++] = options->shell.options;
 617                 args[n++] = command;
 618                 args[n] = NULL;
 619
 620                 ok = g_spawn_async_with_pipes(working_directory, args, NULL,
 621                                       G_SPAWN_DO_NOT_REAP_CHILD, /* GSpawnFlags */
 622                                       NULL, NULL,
 623                                       &pid,
 624                                       NULL,
 625                                       ed->vd ? &standard_output : NULL,
 626                                       ed->vd ? &standard_error : NULL,
 627                                       NULL);
 628
 629                 g_free(working_directory);
 630
 631                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 632                 }
 633
 634         if (ok)
 635                 {
 636                 g_child_watch_add(pid, editor_child_exit_cb, ed);
 637                 ed->pid = pid;
 638                 }
 639
 640         if (ed->vd)
 641                 {
 642                 if (!ok)
 643                         {
 644                         gchar *buf;
 645
 646                         buf = g_strdup_printf(_("Failed to run command:\n%s\n"), template);
 647                         editor_verbose_window_fill(ed->vd, buf, strlen(buf));
 648                         g_free(buf);
 649
 650                         }
 651                 else
 652                         {
 653                         GIOChannel *channel_output;
 654                         GIOChannel *channel_error;
 655
 656                         channel_output = g_io_channel_unix_new(standard_output);
 657                         g_io_channel_set_flags(channel_output, G_IO_FLAG_NONBLOCK, NULL);
 658                         g_io_channel_set_encoding(channel_output, NULL, NULL);
 659
 660                         g_io_add_watch_full(channel_output, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 661                                             editor_verbose_io_cb, ed, NULL);
 662                         g_io_channel_unref(channel_output);
 663
 664                         channel_error = g_io_channel_unix_new(standard_error);
 665                         g_io_channel_set_flags(channel_error, G_IO_FLAG_NONBLOCK, NULL);
 666                         g_io_channel_set_encoding(channel_error, NULL, NULL);
 667
 668                         g_io_add_watch_full(channel_error, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 669                                             editor_verbose_io_cb, ed, NULL);
 670                         g_io_channel_unref(channel_error);
 671                         }
 672                 }
 673
 674         g_free(command);
 675
 676         return ed->flags & EDITOR_ERROR_MASK;
 677 }
 678
 679 static gint editor_command_next_start(EditorData *ed)
 680 {
 681         if (ed->vd) editor_verbose_window_fill(ed->vd, "\n", 1);
 682
 683         if (ed->list && ed->count < ed->total)
 684                 {
 685                 FileData *fd;
 686                 gint error;
 687
 688                 fd = ed->list->data;
 689
 690                 if (ed->vd)
 691                         {
 692                         editor_verbose_window_progress(ed, (ed->flags & EDITOR_FOR_EACH) ? fd->path : _("running..."));
 693                         }
 694                 ed->count++;
 695
 696                 error = editor_command_one(ed->command_template, ed->list, ed);
 697                 if (!error && ed->vd)
 698                         {
 699                         gtk_widget_set_sensitive(ed->vd->button_stop, (ed->list != NULL) );
 700                         if (ed->flags & EDITOR_FOR_EACH)
 701                                 {
 702                                 editor_verbose_window_fill(ed->vd, fd->path, strlen(fd->path));
 703                                 editor_verbose_window_fill(ed->vd, "\n", 1);
 704                                 }
 705                         }
 706
 707                 if (!error)
 708                         return 0;
 709                 else
 710                         /* command was not started, call the finish immediately */
 711                         return editor_command_next_finish(ed, 0);
 712                 }
 713
 714         /* everything is done */
 715         return editor_command_done(ed);
 716 }
 717
 718 static gint editor_command_next_finish(EditorData *ed, gint status)
 719 {
 720         gint cont = ed->stopping ? EDITOR_CB_SKIP : EDITOR_CB_CONTINUE;
 721
 722         if (status)
 723                 ed->flags |= EDITOR_ERROR_STATUS;
 724
 725         if (ed->flags & EDITOR_FOR_EACH)
 726                 {
 727                 /* handle the first element from the list */
 728                 GList *fd_element = ed->list;
 729
 730                 ed->list = g_list_remove_link(ed->list, fd_element);
 731                 if (ed->callback)
 732                         {
 733                         cont = ed->callback(ed->list ? ed : NULL, ed->flags, fd_element, ed->data);
 734                         if (ed->stopping && cont == EDITOR_CB_CONTINUE) cont = EDITOR_CB_SKIP;
 735                         }
 736                 filelist_free(fd_element);
 737                 }
 738         else
 739                 {
 740                 /* handle whole list */
 741                 if (ed->callback)
 742                         cont = ed->callback(NULL, ed->flags, ed->list, ed->data);
 743                 filelist_free(ed->list);
 744                 ed->list = NULL;
 745                 }
 746
 747         if (cont == EDITOR_CB_SUSPEND)
 748                 return ed->flags & EDITOR_ERROR_MASK;
 749         else if (cont == EDITOR_CB_SKIP)
 750                 return editor_command_done(ed);
 751         else
 752                 return editor_command_next_start(ed);
 753 }
 754
 755 static gint editor_command_done(EditorData *ed)
 756 {
 757         gint flags;
 758
 759         if (ed->vd)
 760                 {
 761                 const gchar *text;
 762
 763                 if (ed->count == ed->total)
 764                         {
 765                         text = _("done");
 766                         }
 767                 else
 768                         {
 769                         text = _("stopped by user");
 770                         }
 771                 editor_verbose_window_progress(ed, text);
 772                 editor_verbose_window_enable_close(ed->vd);
 773                 }
 774
 775         /* free the not-handled items */
 776         if (ed->list)
 777                 {
 778                 ed->flags |= EDITOR_ERROR_SKIPPED;
 779                 if (ed->callback) ed->callback(NULL, ed->flags, ed->list, ed->data);
 780                 filelist_free(ed->list);
 781                 ed->list = NULL;
 782                 }
 783
 784         ed->count = 0;
 785
 786         flags = ed->flags & EDITOR_ERROR_MASK;
 787
 788         if (!ed->vd) editor_data_free(ed);
 789
 790         return flags;
 791 }
 792
 793 void editor_resume(gpointer ed)
 794 {
 795         editor_command_next_start(ed);
 796 }
 797
 798 void editor_skip(gpointer ed)
 799 {
 800         editor_command_done(ed);
 801 }
 802
 803 static gint editor_command_start(const gchar *template, const gchar *text, GList *list, EditorCallback cb, gpointer data)
 804 {
 805         EditorData *ed;
 806         gint flags = editor_command_parse(template, NULL, NULL);
 807
 808         if (flags & EDITOR_ERROR_MASK) return flags & EDITOR_ERROR_MASK;
 809
 810         ed = g_new0(EditorData, 1);
 811         ed->list = filelist_copy(list);
 812         ed->flags = flags;
 813         ed->command_template = g_strdup(template);
 814         ed->total = (flags & EDITOR_SINGLE_COMMAND) ? 1 : g_list_length(list);
 815         ed->count = 0;
 816         ed->stopping = FALSE;
 817         ed->callback = cb;
 818         ed->data =  data;
 819
 820         if ((flags & EDITOR_VERBOSE_MULTI) && list && list->next)
 821                 flags |= EDITOR_VERBOSE;
 822
 823         if (flags & EDITOR_VERBOSE)
 824                 editor_verbose_window(ed, text);
 825
 826         editor_command_next_start(ed);
 827         /* errors from editor_command_next_start will be handled via callback */
 828         return flags & EDITOR_ERROR_MASK;
 829 }
 830
 831 gboolean is_valid_editor_command(gint n)
 832 {
 833         return (n >= 0 && n < GQ_EDITOR_SLOTS
 834                 && options->editor[n].command
 835                 && strlen(options->editor[n].command) > 0);
 836 }
 837
 838 gint start_editor_from_filelist_full(gint n, GList *list, EditorCallback cb, gpointer data)
 839 {
 840         gchar *command;
 841         gint error;
 842
 843         if (!list) return FALSE;
 844         if (!is_valid_editor_command(n)) return FALSE;
 845
 846         command = g_locale_from_utf8(options->editor[n].command, -1, NULL, NULL, NULL);
 847         error = editor_command_start(command, options->editor[n].name, list, cb, data);
 848         g_free(command);
 849
 850         if (n < GQ_EDITOR_GENERIC_SLOTS && (error & EDITOR_ERROR_MASK))
 851                 {
 852                 gchar *text = g_strdup_printf(_("%s\n#%d \"%s\":\n%s"), editor_get_error_str(error), n+1,
 853                                               options->editor[n].name, options->editor[n].command);
 854
 855                 file_util_warning_dialog(_("Invalid editor command"), text, GTK_STOCK_DIALOG_ERROR, NULL);
 856                 g_free(text);
 857                 }
 858
 859         return error;
 860 }
 861
 862 gint start_editor_from_filelist(gint n, GList *list)
 863 {
 864         return start_editor_from_filelist_full(n, list,  NULL, NULL);
 865 }
 866
 867 gint start_editor_from_file_full(gint n, FileData *fd, EditorCallback cb, gpointer data)
 868 {
 869         GList *list;
 870         gint error;
 871
 872         if (!fd) return FALSE;
 873
 874         list = g_list_append(NULL, fd);
 875         error = start_editor_from_filelist_full(n, list, cb, data);
 876         g_list_free(list);
 877         return error;
 878 }
 879
 880 gint start_editor_from_file(gint n, FileData *fd)
 881 {
 882         return start_editor_from_file_full(n, fd, NULL, NULL);
 883 }
 884
 885 gint editor_window_flag_set(gint n)
 886 {
 887         if (!is_valid_editor_command(n)) return TRUE;
 888
 889         return (editor_command_parse(options->editor[n].command, NULL, NULL) & EDITOR_KEEP_FS);
 890 }
 891
 892 gint editor_is_filter(gint n)
 893 {
 894         if (!is_valid_editor_command(n)) return FALSE;
 895
 896         return (editor_command_parse(options->editor[n].command, NULL, NULL) & EDITOR_DEST);
 897 }
 898
 899 const gchar *editor_get_error_str(gint flags)
 900 {
 901         if (flags & EDITOR_ERROR_EMPTY) return _("Editor template is empty.");
 902         if (flags & EDITOR_ERROR_SYNTAX) return _("Editor template has incorrect syntax.");
 903         if (flags & EDITOR_ERROR_INCOMPATIBLE) return _("Editor template uses incompatible macros.");
 904         if (flags & EDITOR_ERROR_NO_FILE) return _("Can't find matching file type.");
 905         if (flags & EDITOR_ERROR_CANT_EXEC) return _("Can't execute external editor.");
 906         if (flags & EDITOR_ERROR_STATUS) return _("External editor returned error status.");
 907         if (flags & EDITOR_ERROR_SKIPPED) return _("File was skipped.");
 908         return _("Unknown error.");
 909 }
 910
 911 const gchar *editor_get_name(gint n)
 912 {
 913         if (!is_valid_editor_command(n)) return NULL;
 914
 915         if (options->editor[n].name && strlen(options->editor[n].name) > 0)
 916                 return options->editor[n].name;
 917
 918         return _("(unknown)");
 919 }