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         GList *list;
  48         gint count;
  49         gint total;
  50         gboolean stopping;
  51         EditorVerboseData *vd;
  52         EditorCallback callback;
  53         gpointer data;
  54         const EditorDescription *editor;
  55 };
  56
  57
  58 static void editor_verbose_window_progress(EditorData *ed, const gchar *text);
  59 static gint editor_command_next_start(EditorData *ed);
  60 static gint editor_command_next_finish(EditorData *ed, gint status);
  61 static gint editor_command_done(EditorData *ed);
  62 static gint editor_command_parse(const EditorDescription *editor, GList *list, gchar **output);
  63
  64 /*
  65  *-----------------------------------------------------------------------------
  66  * external editor routines
  67  *-----------------------------------------------------------------------------
  68  */
  69
  70 GHashTable *editors = NULL;
  71
  72 #ifdef G_KEY_FILE_DESKTOP_GROUP
  73 #define DESKTOP_GROUP G_KEY_FILE_DESKTOP_GROUP
  74 #else
  75 #define DESKTOP_GROUP "Desktop Entry"
  76 #endif
  77
  78 void editor_description_free(EditorDescription *editor)
  79 {
  80         if (!editor) return;
  81
  82         g_free(editor->key);
  83         g_free(editor->name);
  84         g_free(editor->exec);
  85         g_free(editor->menu_path);
  86         g_free(editor->hotkey);
  87         string_list_free(editor->ext_list);
  88         g_free(editor->icon);
  89         g_free(editor->file);
  90         g_free(editor);
  91 }
  92
  93 static GList *editor_mime_types_to_extensions(gchar **mime_types)
  94 {
  95         /* FIXME: this should be rewritten to use the shared mime database, as soon as we switch to gio */
  96
  97         static const gchar *conv_table[][2] = {
  98                 {"application/x-ufraw", "%raw"},
  99                 {"image/*",             "*"},
 100                 {"image/bmp",           ".bmp"},
 101                 {"image/gif",           ".gif"},
 102                 {"image/jpeg",          ".jpeg;.jpg"},
 103                 {"image/jpg",           ".jpg;.jpeg"},
 104                 {"image/pcx",           ".pcx"},
 105                 {"image/png",           ".png"},
 106                 {"image/svg",           ".svg"},
 107                 {"image/svg+xml",       ".svg"},
 108                 {"image/svg+xml-compressed",    ".svg"},
 109                 {"image/tiff",          ".tiff;.tif"},
 110                 {"image/x-bmp",         ".bmp"},
 111                 {"image/x-canon-crw",   ".crw"},
 112                 {"image/x-cr2",         ".cr2"},
 113                 {"image/x-dcraw",       "%raw"},
 114                 {"image/x-ico",         ".ico"},
 115                 {"image/x-mrw",         ".mrw"},
 116                 {"image/x-MS-bmp",      ".bmp"},
 117                 {"image/x-nef",         ".nef"},
 118                 {"image/x-orf",         ".orf"},
 119                 {"image/x-pcx",         ".pcx"},
 120                 {"image/xpm",           ".xpm"},
 121                 {"image/x-png",         ".png"},
 122                 {"image/x-portable-anymap",     ".pam"},
 123                 {"image/x-portable-bitmap",     ".pbm"},
 124                 {"image/x-portable-graymap",    ".pgm"},
 125                 {"image/x-portable-pixmap",     ".ppm"},
 126                 {"image/x-psd",         ".psd"},
 127                 {"image/x-raf",         ".raf"},
 128                 {"image/x-sgi",         ".sgi"},
 129                 {"image/x-tga",         ".tga"},
 130                 {"image/x-xbitmap",     ".xbm"},
 131                 {"image/x-xcf",         ".xcf"},
 132                 {"image/x-xpixmap",     ".xpm"},
 133                 {"image/x-x3f",         ".x3f"},
 134                 {NULL, NULL}};
 135
 136         gint i, j;
 137         GList *list = NULL;
 138
 139         for (i = 0; mime_types[i]; i++)
 140                 for (j = 0; conv_table[j][0]; j++)
 141                         if (strcmp(mime_types[i], conv_table[j][0]) == 0)
 142                                 list = g_list_concat(list, filter_to_list(conv_table[j][1]));
 143
 144         return list;
 145 }
 146
 147 static gboolean editor_read_desktop_file(const gchar *path)
 148 {
 149         GKeyFile *key_file;
 150         EditorDescription *editor;
 151         gchar *extensions;
 152         const gchar *key = filename_from_path(path);
 153         gchar **categories, **only_show_in, **not_show_in;
 154
 155         if (g_hash_table_lookup(editors, key)) return FALSE; /* the file found earlier wins */
 156
 157         key_file = g_key_file_new();
 158         if (!g_key_file_load_from_file(key_file, path, 0, NULL))
 159                 {
 160                 g_key_file_free(key_file);
 161                 return FALSE;
 162                 }
 163
 164         editor = g_new0(EditorDescription, 1);
 165
 166         editor->key = g_strdup(key);
 167         editor->file = g_strdup(path);
 168
 169         g_hash_table_insert(editors, editor->key, editor);
 170
 171         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "Hidden", NULL)) editor->hidden = TRUE;
 172
 173         categories = g_key_file_get_string_list(key_file, DESKTOP_GROUP, "Categories", NULL, NULL);
 174         if (categories)
 175                 {
 176                 gboolean found = FALSE;
 177                 gint i;
 178                 for (i = 0; categories[i]; i++)
 179                         /* IMHO "Graphics" is exactly the category that we are interested in, so this does not have to be configurable */
 180                         if (strcmp(categories[i], "Graphics") == 0 ||
 181                             strcmp(categories[i], "X-Geeqie") == 0)
 182                                 {
 183                                 found = TRUE;
 184                                 break;
 185                                 }
 186                 if (!found) editor->hidden = TRUE;
 187                 g_strfreev(categories);
 188                 }
 189         else
 190                 {
 191                 editor->hidden = TRUE;
 192                 }
 193
 194         only_show_in = g_key_file_get_string_list(key_file, DESKTOP_GROUP, "OnlyShowIn", NULL, NULL);
 195         if (only_show_in)
 196                 {
 197                 gboolean found = FALSE;
 198                 gint i;
 199                 for (i = 0; only_show_in[i]; i++)
 200                         if (strcmp(only_show_in[i], "X-Geeqie") == 0)
 201                                 {
 202                                 found = TRUE;
 203                                 break;
 204                                 }
 205                 if (!found) editor->hidden = TRUE;
 206                 g_strfreev(only_show_in);
 207                 }
 208
 209         not_show_in = g_key_file_get_string_list(key_file, DESKTOP_GROUP, "NotShowIn", NULL, NULL);
 210         if (not_show_in)
 211                 {
 212                 gboolean found = FALSE;
 213                 gint i;
 214                 for (i = 0; not_show_in[i]; i++)
 215                         if (strcmp(not_show_in[i], "X-Geeqie") == 0)
 216                                 {
 217                                 found = TRUE;
 218                                 break;
 219                                 }
 220                 if (found) editor->hidden = TRUE;
 221                 g_strfreev(not_show_in);
 222                 }
 223
 224         if (editor->hidden)
 225                 {
 226                 /* hidden editors will be deleted, no need to parse the rest */
 227                 g_key_file_free(key_file);
 228                 return TRUE;
 229                 }
 230
 231         editor->name = g_key_file_get_locale_string(key_file, DESKTOP_GROUP, "Name", NULL, NULL);
 232         editor->icon = g_key_file_get_string(key_file, DESKTOP_GROUP, "Icon", NULL);
 233
 234         editor->exec = g_key_file_get_string(key_file, DESKTOP_GROUP, "Exec", NULL);
 235
 236         /* we take only editors that accept parameters, FIXME: the test can be improved */
 237         if (!strchr(editor->exec, '%')) editor->hidden = TRUE;
 238
 239         editor->menu_path = g_key_file_get_string(key_file, DESKTOP_GROUP, "X-Geeqie-Menu-Path", NULL);
 240         if (!editor->menu_path) editor->menu_path = g_strdup("EditMenu/ExternalMenu");
 241
 242         editor->hotkey = g_key_file_get_string(key_file, DESKTOP_GROUP, "X-Geeqie-Hotkey", NULL);
 243
 244         extensions = g_key_file_get_string(key_file, DESKTOP_GROUP, "X-Geeqie-File-Extensions", NULL);
 245         if (extensions)
 246                 editor->ext_list = filter_to_list(extensions);
 247         else
 248                 {
 249                 gchar **mime_types = g_key_file_get_string_list(key_file, DESKTOP_GROUP, "MimeType", NULL, NULL);
 250                 if (mime_types)
 251                         {
 252                         editor->ext_list = editor_mime_types_to_extensions(mime_types);
 253                         g_strfreev(mime_types);
 254                         if (!editor->ext_list) editor->hidden = TRUE;
 255                         }
 256
 257                 }
 258
 259
 260         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "X-Geeqie-Keep-Fullscreen", NULL)) editor->flags |= EDITOR_KEEP_FS;
 261         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "X-Geeqie-Verbose", NULL)) editor->flags |= EDITOR_VERBOSE;
 262         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "X-Geeqie-Verbose-Multi", NULL)) editor->flags |= EDITOR_VERBOSE_MULTI;
 263         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "X-Geeqie-Filter", NULL)) editor->flags |= EDITOR_DEST;
 264         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "Terminal", NULL)) editor->flags |= EDITOR_TERMINAL;
 265
 266
 267         editor->flags |= editor_command_parse(editor, NULL, NULL);
 268         g_key_file_free(key_file);
 269
 270         return TRUE;
 271 }
 272
 273 static gboolean editor_remove_desktop_file_cb(gpointer key, gpointer value, gpointer user_data)
 274 {
 275         EditorDescription *editor = value;
 276         return editor->hidden;
 277 }
 278
 279 static void editor_read_desktop_dir(const gchar *path)
 280 {
 281         DIR *dp;
 282         struct dirent *dir;
 283         gchar *pathl;
 284
 285         pathl = path_from_utf8(path);
 286         dp = opendir(pathl);
 287         g_free(pathl);
 288         if (!dp)
 289                 {
 290                 /* dir not found */
 291                 return;
 292                 }
 293         while ((dir = readdir(dp)) != NULL)
 294                 {
 295                 gchar *namel = dir->d_name;
 296                 size_t len = strlen(namel);
 297
 298                 if (len > 8 && strncasecmp(namel + len - 8, ".desktop", 8) == 0)
 299                         {
 300                         gchar *name = path_to_utf8(namel);
 301                         gchar *dpath = g_build_filename(path, name, NULL);
 302                         editor_read_desktop_file(dpath);
 303                         g_free(dpath);
 304                         g_free(name);
 305                         }
 306                 }
 307         closedir(dp);
 308 }
 309
 310 void editor_load_descriptions(void)
 311 {
 312         gchar *path;
 313         gchar *xdg_data_dirs;
 314         gchar *all_dirs;
 315         gchar **split_dirs;
 316         gint i;
 317
 318         if (!editors)
 319                 {
 320                 editors = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, (GDestroyNotify)editor_description_free);
 321                 }
 322
 323         xdg_data_dirs = getenv("XDG_DATA_DIRS");
 324         if (xdg_data_dirs && xdg_data_dirs[0])
 325                 xdg_data_dirs = path_to_utf8(xdg_data_dirs);
 326         else
 327                 xdg_data_dirs = g_strdup("/usr/share");
 328
 329         all_dirs = g_strconcat(get_rc_dir(), ":", GQ_APP_DIR, ":", xdg_data_dirs, NULL);
 330
 331         g_free(xdg_data_dirs);
 332
 333         split_dirs = g_strsplit(all_dirs, ":", 0);
 334
 335         g_free(all_dirs);
 336
 337         for (i = 0; split_dirs[i]; i++)
 338                 {
 339                 path = g_build_filename(split_dirs[i], "applications", NULL);
 340                 editor_read_desktop_dir(path);
 341                 g_free(path);
 342                 }
 343
 344         g_strfreev(split_dirs);
 345
 346         g_hash_table_foreach_remove(editors, editor_remove_desktop_file_cb, NULL);
 347 }
 348
 349 static void editor_list_add_cb(gpointer key, gpointer value, gpointer data)
 350 {
 351         GList **listp = data;
 352         EditorDescription *editor = value;
 353
 354         /* do not show the special commands in any list, they are called explicitelly */
 355         if (strcmp(editor->key, CMD_COPY) == 0 ||
 356             strcmp(editor->key, CMD_MOVE) == 0 ||
 357             strcmp(editor->key, CMD_RENAME) == 0 ||
 358             strcmp(editor->key, CMD_DELETE) == 0 ||
 359             strcmp(editor->key, CMD_FOLDER) == 0) return;
 360
 361         *listp = g_list_prepend(*listp, editor);
 362 }
 363
 364 GList *editor_list_get(void)
 365 {
 366         GList *editors_list = NULL;
 367         g_hash_table_foreach(editors, editor_list_add_cb, &editors_list);
 368         return editors_list;
 369 }
 370
 371 /* ------------------------------ */
 372
 373
 374 static void editor_verbose_data_free(EditorData *ed)
 375 {
 376         if (!ed->vd) return;
 377         g_free(ed->vd);
 378         ed->vd = NULL;
 379 }
 380
 381 static void editor_data_free(EditorData *ed)
 382 {
 383         editor_verbose_data_free(ed);
 384         g_free(ed);
 385 }
 386
 387 static void editor_verbose_window_close(GenericDialog *gd, gpointer data)
 388 {
 389         EditorData *ed = data;
 390
 391         generic_dialog_close(gd);
 392         editor_verbose_data_free(ed);
 393         if (ed->pid == -1) editor_data_free(ed); /* the process has already terminated */
 394 }
 395
 396 static void editor_verbose_window_stop(GenericDialog *gd, gpointer data)
 397 {
 398         EditorData *ed = data;
 399         ed->stopping = TRUE;
 400         ed->count = 0;
 401         editor_verbose_window_progress(ed, _("stopping..."));
 402 }
 403
 404 static void editor_verbose_window_enable_close(EditorVerboseData *vd)
 405 {
 406         vd->gd->cancel_cb = editor_verbose_window_close;
 407
 408         spinner_set_interval(vd->spinner, -1);
 409         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 410         gtk_widget_set_sensitive(vd->button_close, TRUE);
 411 }
 412
 413 static EditorVerboseData *editor_verbose_window(EditorData *ed, const gchar *text)
 414 {
 415         EditorVerboseData *vd;
 416         GtkWidget *scrolled;
 417         GtkWidget *hbox;
 418         gchar *buf;
 419
 420         vd = g_new0(EditorVerboseData, 1);
 421
 422         vd->gd = file_util_gen_dlg(_("Edit command results"), "editor_results",
 423                                    NULL, FALSE,
 424                                    NULL, ed);
 425         buf = g_strdup_printf(_("Output of %s"), text);
 426         generic_dialog_add_message(vd->gd, NULL, buf, NULL);
 427         g_free(buf);
 428         vd->button_stop = generic_dialog_add_button(vd->gd, GTK_STOCK_STOP, NULL,
 429                                                    editor_verbose_window_stop, FALSE);
 430         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 431         vd->button_close = generic_dialog_add_button(vd->gd, GTK_STOCK_CLOSE, NULL,
 432                                                     editor_verbose_window_close, TRUE);
 433         gtk_widget_set_sensitive(vd->button_close, FALSE);
 434
 435         scrolled = gtk_scrolled_window_new(NULL, NULL);
 436         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
 437         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled),
 438                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 439         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), scrolled, TRUE, TRUE, 5);
 440         gtk_widget_show(scrolled);
 441
 442         vd->text = gtk_text_view_new();
 443         gtk_text_view_set_editable(GTK_TEXT_VIEW(vd->text), FALSE);
 444         gtk_widget_set_size_request(vd->text, EDITOR_WINDOW_WIDTH, EDITOR_WINDOW_HEIGHT);
 445         gtk_container_add(GTK_CONTAINER(scrolled), vd->text);
 446         gtk_widget_show(vd->text);
 447
 448         hbox = gtk_hbox_new(FALSE, 0);
 449         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), hbox, FALSE, FALSE, 0);
 450         gtk_widget_show(hbox);
 451
 452         vd->progress = gtk_progress_bar_new();
 453         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(vd->progress), 0.0);
 454         gtk_box_pack_start(GTK_BOX(hbox), vd->progress, TRUE, TRUE, 0);
 455         gtk_widget_show(vd->progress);
 456
 457         vd->spinner = spinner_new(NULL, SPINNER_SPEED);
 458         gtk_box_pack_start(GTK_BOX(hbox), vd->spinner, FALSE, FALSE, 0);
 459         gtk_widget_show(vd->spinner);
 460
 461         gtk_widget_show(vd->gd->dialog);
 462
 463         ed->vd = vd;
 464         return vd;
 465 }
 466
 467 static void editor_verbose_window_fill(EditorVerboseData *vd, gchar *text, gint len)
 468 {
 469         GtkTextBuffer *buffer;
 470         GtkTextIter iter;
 471
 472         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(vd->text));
 473         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 474         gtk_text_buffer_insert(buffer, &iter, text, len);
 475 }
 476
 477 static void editor_verbose_window_progress(EditorData *ed, const gchar *text)
 478 {
 479         if (!ed->vd) return;
 480
 481         if (ed->total)
 482                 {
 483                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(ed->vd->progress), (gdouble)ed->count / ed->total);
 484                 }
 485
 486         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(ed->vd->progress), (text) ? text : "");
 487 }
 488
 489 static gboolean editor_verbose_io_cb(GIOChannel *source, GIOCondition condition, gpointer data)
 490 {
 491         EditorData *ed = data;
 492         gchar buf[512];
 493         gsize count;
 494
 495         if (condition & G_IO_IN)
 496                 {
 497                 while (g_io_channel_read_chars(source, buf, sizeof(buf), &count, NULL) == G_IO_STATUS_NORMAL)
 498                         {
 499                         if (!g_utf8_validate(buf, count, NULL))
 500                                 {
 501                                 gchar *utf8;
 502
 503                                 utf8 = g_locale_to_utf8(buf, count, NULL, NULL, NULL);
 504                                 if (utf8)
 505                                         {
 506                                         editor_verbose_window_fill(ed->vd, utf8, -1);
 507                                         g_free(utf8);
 508                                         }
 509                                 else
 510                                         {
 511                                         editor_verbose_window_fill(ed->vd, "Error converting text to valid utf8\n", -1);
 512                                         }
 513                                 }
 514                         else
 515                                 {
 516                                 editor_verbose_window_fill(ed->vd, buf, count);
 517                                 }
 518                         }
 519                 }
 520
 521         if (condition & (G_IO_ERR | G_IO_HUP))
 522                 {
 523                 g_io_channel_shutdown(source, TRUE, NULL);
 524                 return FALSE;
 525                 }
 526
 527         return TRUE;
 528 }
 529
 530 typedef enum {
 531         PATH_FILE,
 532         PATH_FILE_URL,
 533         PATH_DEST
 534 } PathType;
 535
 536
 537 static gchar *editor_command_path_parse(const FileData *fd, PathType type, const EditorDescription *editor)
 538 {
 539         GString *string;
 540         gchar *pathl;
 541         const gchar *p = NULL;
 542
 543         string = g_string_new("");
 544
 545         if (type == PATH_FILE || type == PATH_FILE_URL)
 546                 {
 547                 GList *work = editor->ext_list;
 548
 549                 if (!work)
 550                         p = fd->path;
 551                 else
 552                         {
 553                         while (work)
 554                                 {
 555                                 GList *work2;
 556                                 gchar *ext = work->data;
 557                                 work = work->next;
 558
 559                                 if (strcmp(ext, "*") == 0 ||
 560                                     strcasecmp(ext, fd->extension) == 0)
 561                                         {
 562                                         p = fd->path;
 563                                         break;
 564                                         }
 565
 566                                 work2 = fd->sidecar_files;
 567                                 while (work2)
 568                                         {
 569                                         FileData *sfd = work2->data;
 570                                         work2 = work2->next;
 571
 572                                         if (strcasecmp(ext, sfd->extension) == 0)
 573                                                 {
 574                                                 p = sfd->path;
 575                                                 break;
 576                                                 }
 577                                         }
 578                                 if (p) break;
 579                                 }
 580                         if (!p) return NULL;
 581                         }
 582                 }
 583         else if (type == PATH_DEST)
 584                 {
 585                 if (fd->change && fd->change->dest)
 586                         p = fd->change->dest;
 587                 else
 588                         p = "";
 589                 }
 590
 591         while (*p != '\0')
 592                 {
 593                 /* must escape \, ", `, and $ to avoid problems,
 594                  * we assume system shell supports bash-like escaping
 595                  */
 596                 if (strchr("\\\"`$", *p) != NULL)
 597                         {
 598                         string = g_string_append_c(string, '\\');
 599                         }
 600                 string = g_string_append_c(string, *p);
 601                 p++;
 602                 }
 603
 604         if (type == PATH_FILE_URL) g_string_prepend(string, "file://");
 605         pathl = path_from_utf8(string->str);
 606         g_string_free(string, TRUE);
 607
 608         return pathl;
 609 }
 610
 611
 612 static gint editor_command_parse(const EditorDescription *editor, GList *list, gchar **output)
 613 {
 614         gint flags = 0;
 615         const gchar *p;
 616         GString *result = NULL;
 617
 618         if (output)
 619                 result = g_string_new("");
 620
 621         if (editor->exec[0] == '\0')
 622                 {
 623                 flags |= EDITOR_ERROR_EMPTY;
 624                 goto err;
 625                 }
 626
 627         p = editor->exec;
 628         /* skip leading whitespaces if any */
 629         while (g_ascii_isspace(*p)) p++;
 630
 631         /* command */
 632
 633         while (*p)
 634                 {
 635                 if (*p != '%')
 636                         {
 637                         if (output) result = g_string_append_c(result, *p);
 638                         }
 639                 else /* *p == '%' */
 640                         {
 641                         gchar *pathl = NULL;
 642
 643                         p++;
 644
 645                         switch (*p)
 646                                 {
 647                                 case 'f': /* single file */
 648                                 case 'u': /* single url */
 649                                         flags |= EDITOR_FOR_EACH;
 650                                         if (flags & EDITOR_SINGLE_COMMAND)
 651                                                 {
 652                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 653                                                 goto err;
 654                                                 }
 655                                         if (output)
 656                                                 {
 657                                                 /* use the first file from the list */
 658                                                 if (!list || !list->data)
 659                                                         {
 660                                                         flags |= EDITOR_ERROR_NO_FILE;
 661                                                         goto err;
 662                                                         }
 663                                                 pathl = editor_command_path_parse((FileData *)list->data,
 664                                                                                   (*p == 'f') ? PATH_FILE : PATH_FILE_URL,
 665                                                                                   editor);
 666                                                 if (!pathl)
 667                                                         {
 668                                                         flags |= EDITOR_ERROR_NO_FILE;
 669                                                         goto err;
 670                                                         }
 671                                                 result = g_string_append_c(result, '"');
 672                                                 result = g_string_append(result, pathl);
 673                                                 g_free(pathl);
 674                                                 result = g_string_append_c(result, '"');
 675                                                 }
 676                                         break;
 677
 678                                 case 'F':
 679                                 case 'U':
 680                                         flags |= EDITOR_SINGLE_COMMAND;
 681                                         if (flags & (EDITOR_FOR_EACH | EDITOR_DEST))
 682                                                 {
 683                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 684                                                 goto err;
 685                                                 }
 686
 687                                         if (output)
 688                                                 {
 689                                                 /* use whole list */
 690                                                 GList *work = list;
 691                                                 gboolean ok = FALSE;
 692
 693                                                 while (work)
 694                                                         {
 695                                                         FileData *fd = work->data;
 696                                                         pathl = editor_command_path_parse(fd, (*p == 'F') ? PATH_FILE : PATH_FILE_URL, editor);
 697
 698                                                         if (pathl)
 699                                                                 {
 700                                                                 ok = TRUE;
 701                                                                 if (work != list) g_string_append_c(result, ' ');
 702                                                                 result = g_string_append_c(result, '"');
 703                                                                 result = g_string_append(result, pathl);
 704                                                                 g_free(pathl);
 705                                                                 result = g_string_append_c(result, '"');
 706                                                                 }
 707                                                         work = work->next;
 708                                                         }
 709                                                 if (!ok)
 710                                                         {
 711                                                         flags |= EDITOR_ERROR_NO_FILE;
 712                                                         goto err;
 713                                                         }
 714                                                 }
 715                                         break;
 716                                 case 'i':
 717                                         if (output)
 718                                                 {
 719                                                 result = g_string_append(result, editor->icon);
 720                                                 }
 721                                         break;
 722                                 case 'c':
 723                                         if (output)
 724                                                 {
 725                                                 result = g_string_append(result, editor->name);
 726                                                 }
 727                                         break;
 728                                 case 'k':
 729                                         if (output)
 730                                                 {
 731                                                 result = g_string_append(result, editor->file);
 732                                                 }
 733                                         break;
 734                                 case '%':
 735                                         /* %% = % escaping */
 736                                         if (output) result = g_string_append_c(result, *p);
 737                                         break;
 738                                 case 'd':
 739                                 case 'D':
 740                                 case 'n':
 741                                 case 'N':
 742                                 case 'v':
 743                                 case 'm':
 744                                         /* deprecated according to spec, ignore */
 745                                         break;
 746                                 default:
 747                                         flags |= EDITOR_ERROR_SYNTAX;
 748                                         goto err;
 749                                 }
 750                         }
 751                 p++;
 752                 }
 753
 754         if (output) *output = g_string_free(result, FALSE);
 755         return flags;
 756
 757
 758 err:
 759         if (output)
 760                 {
 761                 g_string_free(result, TRUE);
 762                 *output = NULL;
 763                 }
 764         return flags;
 765 }
 766
 767
 768 static void editor_child_exit_cb (GPid pid, gint status, gpointer data)
 769 {
 770         EditorData *ed = data;
 771         g_spawn_close_pid(pid);
 772         ed->pid = -1;
 773
 774         editor_command_next_finish(ed, status);
 775 }
 776
 777
 778 static gint editor_command_one(const EditorDescription *editor, GList *list, EditorData *ed)
 779 {
 780         gchar *command;
 781         FileData *fd = list->data;
 782         GPid pid;
 783         gint standard_output;
 784         gint standard_error;
 785         gboolean ok;
 786
 787         ed->pid = -1;
 788         ed->flags = editor->flags | editor_command_parse(editor, list, &command);
 789
 790         ok = !(ed->flags & EDITOR_ERROR_MASK);
 791
 792         if (ok)
 793                 {
 794                 ok = (options->shell.path && *options->shell.path);
 795                 if (!ok) log_printf("ERROR: empty shell command\n");
 796
 797                 if (ok)
 798                         {
 799                         ok = (access(options->shell.path, X_OK) == 0);
 800                         if (!ok) log_printf("ERROR: cannot execute shell command '%s'\n", options->shell.path);
 801                         }
 802
 803                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 804                 }
 805
 806         if (ok)
 807                 {
 808                 gchar *working_directory;
 809                 gchar *args[4];
 810                 guint n = 0;
 811
 812                 working_directory = remove_level_from_path(fd->path);
 813                 args[n++] = options->shell.path;
 814                 if (options->shell.options && *options->shell.options)
 815                         args[n++] = options->shell.options;
 816                 args[n++] = command;
 817                 args[n] = NULL;
 818
 819                 if ((ed->flags & EDITOR_DEST) && fd->change && fd->change->dest) /* FIXME: error handling */
 820                         {
 821                         setenv("GEEQIE_DESTINATION", fd->change->dest, TRUE);
 822                         }
 823                 else
 824                         {
 825                         unsetenv("GEEQIE_DESTINATION");
 826                         }
 827
 828                 ok = g_spawn_async_with_pipes(working_directory, args, NULL,
 829                                       G_SPAWN_DO_NOT_REAP_CHILD, /* GSpawnFlags */
 830                                       NULL, NULL,
 831                                       &pid,
 832                                       NULL,
 833                                       ed->vd ? &standard_output : NULL,
 834                                       ed->vd ? &standard_error : NULL,
 835                                       NULL);
 836
 837                 g_free(working_directory);
 838
 839                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 840                 }
 841
 842         if (ok)
 843                 {
 844                 g_child_watch_add(pid, editor_child_exit_cb, ed);
 845                 ed->pid = pid;
 846                 }
 847
 848         if (ed->vd)
 849                 {
 850                 if (!ok)
 851                         {
 852                         gchar *buf;
 853
 854                         buf = g_strdup_printf(_("Failed to run command:\n%s\n"), editor->file);
 855                         editor_verbose_window_fill(ed->vd, buf, strlen(buf));
 856                         g_free(buf);
 857
 858                         }
 859                 else
 860                         {
 861                         GIOChannel *channel_output;
 862                         GIOChannel *channel_error;
 863
 864                         channel_output = g_io_channel_unix_new(standard_output);
 865                         g_io_channel_set_flags(channel_output, G_IO_FLAG_NONBLOCK, NULL);
 866                         g_io_channel_set_encoding(channel_output, NULL, NULL);
 867
 868                         g_io_add_watch_full(channel_output, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 869                                             editor_verbose_io_cb, ed, NULL);
 870                         g_io_channel_unref(channel_output);
 871
 872                         channel_error = g_io_channel_unix_new(standard_error);
 873                         g_io_channel_set_flags(channel_error, G_IO_FLAG_NONBLOCK, NULL);
 874                         g_io_channel_set_encoding(channel_error, NULL, NULL);
 875
 876                         g_io_add_watch_full(channel_error, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 877                                             editor_verbose_io_cb, ed, NULL);
 878                         g_io_channel_unref(channel_error);
 879                         }
 880                 }
 881
 882         g_free(command);
 883
 884         return ed->flags & EDITOR_ERROR_MASK;
 885 }
 886
 887 static gint editor_command_next_start(EditorData *ed)
 888 {
 889         if (ed->vd) editor_verbose_window_fill(ed->vd, "\n", 1);
 890
 891         if (ed->list && ed->count < ed->total)
 892                 {
 893                 FileData *fd;
 894                 gint error;
 895
 896                 fd = ed->list->data;
 897
 898                 if (ed->vd)
 899                         {
 900                         editor_verbose_window_progress(ed, (ed->flags & EDITOR_FOR_EACH) ? fd->path : _("running..."));
 901                         }
 902                 ed->count++;
 903
 904                 error = editor_command_one(ed->editor, ed->list, ed);
 905                 if (!error && ed->vd)
 906                         {
 907                         gtk_widget_set_sensitive(ed->vd->button_stop, (ed->list != NULL) );
 908                         if (ed->flags & EDITOR_FOR_EACH)
 909                                 {
 910                                 editor_verbose_window_fill(ed->vd, fd->path, strlen(fd->path));
 911                                 editor_verbose_window_fill(ed->vd, "\n", 1);
 912                                 }
 913                         }
 914
 915                 if (!error)
 916                         return 0;
 917                 else
 918                         /* command was not started, call the finish immediately */
 919                         return editor_command_next_finish(ed, 0);
 920                 }
 921
 922         /* everything is done */
 923         return editor_command_done(ed);
 924 }
 925
 926 static gint editor_command_next_finish(EditorData *ed, gint status)
 927 {
 928         gint cont = ed->stopping ? EDITOR_CB_SKIP : EDITOR_CB_CONTINUE;
 929
 930         if (status)
 931                 ed->flags |= EDITOR_ERROR_STATUS;
 932
 933         if (ed->flags & EDITOR_FOR_EACH)
 934                 {
 935                 /* handle the first element from the list */
 936                 GList *fd_element = ed->list;
 937
 938                 ed->list = g_list_remove_link(ed->list, fd_element);
 939                 if (ed->callback)
 940                         {
 941                         cont = ed->callback(ed->list ? ed : NULL, ed->flags, fd_element, ed->data);
 942                         if (ed->stopping && cont == EDITOR_CB_CONTINUE) cont = EDITOR_CB_SKIP;
 943                         }
 944                 filelist_free(fd_element);
 945                 }
 946         else
 947                 {
 948                 /* handle whole list */
 949                 if (ed->callback)
 950                         cont = ed->callback(NULL, ed->flags, ed->list, ed->data);
 951                 filelist_free(ed->list);
 952                 ed->list = NULL;
 953                 }
 954
 955         if (cont == EDITOR_CB_SUSPEND)
 956                 return ed->flags & EDITOR_ERROR_MASK;
 957         else if (cont == EDITOR_CB_SKIP)
 958                 return editor_command_done(ed);
 959         else
 960                 return editor_command_next_start(ed);
 961 }
 962
 963 static gint editor_command_done(EditorData *ed)
 964 {
 965         gint flags;
 966
 967         if (ed->vd)
 968                 {
 969                 const gchar *text;
 970
 971                 if (ed->count == ed->total)
 972                         {
 973                         text = _("done");
 974                         }
 975                 else
 976                         {
 977                         text = _("stopped by user");
 978                         }
 979                 editor_verbose_window_progress(ed, text);
 980                 editor_verbose_window_enable_close(ed->vd);
 981                 }
 982
 983         /* free the not-handled items */
 984         if (ed->list)
 985                 {
 986                 ed->flags |= EDITOR_ERROR_SKIPPED;
 987                 if (ed->callback) ed->callback(NULL, ed->flags, ed->list, ed->data);
 988                 filelist_free(ed->list);
 989                 ed->list = NULL;
 990                 }
 991
 992         ed->count = 0;
 993
 994         flags = ed->flags & EDITOR_ERROR_MASK;
 995
 996         if (!ed->vd) editor_data_free(ed);
 997
 998         return flags;
 999 }
1000
1001 void editor_resume(gpointer ed)
1002 {
1003         editor_command_next_start(ed);
1004 }
1005
1006 void editor_skip(gpointer ed)
1007 {
1008         editor_command_done(ed);
1009 }
1010
1011 static gint editor_command_start(const EditorDescription *editor, const gchar *text, GList *list, EditorCallback cb, gpointer data)
1012 {
1013         EditorData *ed;
1014         gint flags = editor->flags;
1015
1016         if (flags & EDITOR_ERROR_MASK) return flags & EDITOR_ERROR_MASK;
1017
1018         ed = g_new0(EditorData, 1);
1019         ed->list = filelist_copy(list);
1020         ed->flags = flags;
1021         ed->editor = editor;
1022         ed->total = (flags & EDITOR_SINGLE_COMMAND) ? 1 : g_list_length(list);
1023         ed->count = 0;
1024         ed->stopping = FALSE;
1025         ed->callback = cb;
1026         ed->data =  data;
1027
1028         if ((flags & EDITOR_VERBOSE_MULTI) && list && list->next)
1029                 flags |= EDITOR_VERBOSE;
1030
1031         if (flags & EDITOR_VERBOSE)
1032                 editor_verbose_window(ed, text);
1033
1034         editor_command_next_start(ed);
1035         /* errors from editor_command_next_start will be handled via callback */
1036         return flags & EDITOR_ERROR_MASK;
1037 }
1038
1039 gboolean is_valid_editor_command(const gchar *key)
1040 {
1041         if (!key) return FALSE;
1042         return g_hash_table_lookup(editors, key) != NULL;
1043 }
1044
1045 gint start_editor_from_filelist_full(const gchar *key, GList *list, EditorCallback cb, gpointer data)
1046 {
1047         gint error;
1048         EditorDescription *editor;
1049         if (!key) return FALSE;
1050
1051         editor = g_hash_table_lookup(editors, key);
1052
1053         if (!list) return FALSE;
1054         if (!editor) return FALSE;
1055
1056         error = editor_command_start(editor, editor->name, list, cb, data);
1057
1058         if (error & EDITOR_ERROR_MASK)
1059                 {
1060                 gchar *text = g_strdup_printf(_("%s\n\"%s\""), editor_get_error_str(error), editor->file);
1061
1062                 file_util_warning_dialog(_("Invalid editor command"), text, GTK_STOCK_DIALOG_ERROR, NULL);
1063                 g_free(text);
1064                 }
1065
1066         return error;
1067 }
1068
1069 gint start_editor_from_filelist(const gchar *key, GList *list)
1070 {
1071         return start_editor_from_filelist_full(key, list,  NULL, NULL);
1072 }
1073
1074 gint start_editor_from_file_full(const gchar *key, FileData *fd, EditorCallback cb, gpointer data)
1075 {
1076         GList *list;
1077         gint error;
1078
1079         if (!fd) return FALSE;
1080
1081         list = g_list_append(NULL, fd);
1082         error = start_editor_from_filelist_full(key, list, cb, data);
1083         g_list_free(list);
1084         return error;
1085 }
1086
1087 gint start_editor_from_file(const gchar *key, FileData *fd)
1088 {
1089         return start_editor_from_file_full(key, fd, NULL, NULL);
1090 }
1091
1092 gint editor_window_flag_set(const gchar *key)
1093 {
1094         EditorDescription *editor;
1095         if (!key) return TRUE;
1096
1097         editor = g_hash_table_lookup(editors, key);
1098         if (!editor) return TRUE;
1099
1100         return (editor->flags & EDITOR_KEEP_FS);
1101 }
1102
1103 gint editor_is_filter(const gchar *key)
1104 {
1105         EditorDescription *editor;
1106         if (!key) return TRUE;
1107
1108         editor = g_hash_table_lookup(editors, key);
1109         if (!editor) return TRUE;
1110
1111         return (editor->flags & EDITOR_DEST);
1112 }
1113
1114 const gchar *editor_get_error_str(gint flags)
1115 {
1116         if (flags & EDITOR_ERROR_EMPTY) return _("Editor template is empty.");
1117         if (flags & EDITOR_ERROR_SYNTAX) return _("Editor template has incorrect syntax.");
1118         if (flags & EDITOR_ERROR_INCOMPATIBLE) return _("Editor template uses incompatible macros.");
1119         if (flags & EDITOR_ERROR_NO_FILE) return _("Can't find matching file type.");
1120         if (flags & EDITOR_ERROR_CANT_EXEC) return _("Can't execute external editor.");
1121         if (flags & EDITOR_ERROR_STATUS) return _("External editor returned error status.");
1122         if (flags & EDITOR_ERROR_SKIPPED) return _("File was skipped.");
1123         return _("Unknown error.");
1124 }
1125
1126 const gchar *editor_get_name(const gchar *key)
1127 {
1128         EditorDescription *editor = g_hash_table_lookup(editors, key);
1129
1130         if (!editor) return NULL;
1131
1132         return editor->name;
1133 }
1134 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */