src/editors.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2009 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         EditorFlags 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 EditorFlags editor_command_next_start(EditorData *ed);
  60 static EditorFlags editor_command_next_finish(EditorData *ed, gint status);
  61 static EditorFlags editor_command_done(EditorData *ed);
  62
  63 /*
  64  *-----------------------------------------------------------------------------
  65  * external editor routines
  66  *-----------------------------------------------------------------------------
  67  */
  68
  69 GHashTable *editors = NULL;
  70
  71 #ifdef G_KEY_FILE_DESKTOP_GROUP
  72 #define DESKTOP_GROUP G_KEY_FILE_DESKTOP_GROUP
  73 #else
  74 #define DESKTOP_GROUP "Desktop Entry"
  75 #endif
  76
  77 void editor_description_free(EditorDescription *editor)
  78 {
  79         if (!editor) return;
  80
  81         g_free(editor->key);
  82         g_free(editor->name);
  83         g_free(editor->icon);
  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->file);
  89         g_free(editor);
  90 }
  91
  92 static GList *editor_mime_types_to_extensions(gchar **mime_types)
  93 {
  94         /* FIXME: this should be rewritten to use the shared mime database, as soon as we switch to gio */
  95
  96         static const gchar *conv_table[][2] = {
  97                 {"application/x-ufraw", "%raw"},
  98                 {"image/*",             "*"},
  99                 {"image/bmp",           ".bmp"},
 100                 {"image/gif",           ".gif"},
 101                 {"image/jpeg",          ".jpeg;.jpg"},
 102                 {"image/jpg",           ".jpg;.jpeg"},
 103                 {"image/pcx",           ".pcx"},
 104                 {"image/png",           ".png"},
 105                 {"image/svg",           ".svg"},
 106                 {"image/svg+xml",       ".svg"},
 107                 {"image/svg+xml-compressed",    ".svg"},
 108                 {"image/tiff",          ".tiff;.tif"},
 109                 {"image/x-bmp",         ".bmp"},
 110                 {"image/x-canon-crw",   ".crw"},
 111                 {"image/x-cr2",         ".cr2"},
 112                 {"image/x-dcraw",       "%raw"},
 113                 {"image/x-ico",         ".ico"},
 114                 {"image/x-mrw",         ".mrw"},
 115                 {"image/x-MS-bmp",      ".bmp"},
 116                 {"image/x-nef",         ".nef"},
 117                 {"image/x-orf",         ".orf"},
 118                 {"image/x-pcx",         ".pcx"},
 119                 {"image/xpm",           ".xpm"},
 120                 {"image/x-png",         ".png"},
 121                 {"image/x-portable-anymap",     ".pam"},
 122                 {"image/x-portable-bitmap",     ".pbm"},
 123                 {"image/x-portable-graymap",    ".pgm"},
 124                 {"image/x-portable-pixmap",     ".ppm"},
 125                 {"image/x-psd",         ".psd"},
 126                 {"image/x-raf",         ".raf"},
 127                 {"image/x-sgi",         ".sgi"},
 128                 {"image/x-tga",         ".tga"},
 129                 {"image/x-xbitmap",     ".xbm"},
 130                 {"image/x-xcf",         ".xcf"},
 131                 {"image/x-xpixmap",     ".xpm"},
 132                 {"image/x-x3f",         ".x3f"},
 133                 {NULL, NULL}};
 134
 135         gint i, j;
 136         GList *list = NULL;
 137
 138         for (i = 0; mime_types[i]; i++)
 139                 for (j = 0; conv_table[j][0]; j++)
 140                         if (strcmp(mime_types[i], conv_table[j][0]) == 0)
 141                                 list = g_list_concat(list, filter_to_list(conv_table[j][1]));
 142
 143         return list;
 144 }
 145
 146 static gboolean editor_read_desktop_file(const gchar *path)
 147 {
 148         GKeyFile *key_file;
 149         EditorDescription *editor;
 150         gchar *extensions;
 151         gchar *type;
 152         const gchar *key = filename_from_path(path);
 153         gchar **categories, **only_show_in, **not_show_in;
 154         gchar *try_exec;
 155
 156         if (g_hash_table_lookup(editors, key)) return FALSE; /* the file found earlier wins */
 157
 158         key_file = g_key_file_new();
 159         if (!g_key_file_load_from_file(key_file, path, 0, NULL))
 160                 {
 161                 g_key_file_free(key_file);
 162                 return FALSE;
 163                 }
 164
 165         type = g_key_file_get_string(key_file, DESKTOP_GROUP, "Type", NULL);
 166         if (!type || strcmp(type, "Application") != 0)
 167                 {
 168                 /* We only consider desktop entries of Application type */
 169                 g_key_file_free(key_file);
 170                 return FALSE;
 171                 }
 172
 173         editor = g_new0(EditorDescription, 1);
 174
 175         editor->key = g_strdup(key);
 176         editor->file = g_strdup(path);
 177
 178         g_hash_table_insert(editors, editor->key, editor);
 179
 180         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "Hidden", NULL)
 181             || g_key_file_get_boolean(key_file, DESKTOP_GROUP, "NoDisplay", NULL))
 182                 {
 183                 editor->hidden = TRUE;
 184                 }
 185
 186         categories = g_key_file_get_string_list(key_file, DESKTOP_GROUP, "Categories", NULL, NULL);
 187         if (categories)
 188                 {
 189                 gboolean found = FALSE;
 190                 gint i;
 191                 for (i = 0; categories[i]; i++)
 192                         /* IMHO "Graphics" is exactly the category that we are interested in, so this does not have to be configurable */
 193                         if (strcmp(categories[i], "Graphics") == 0 ||
 194                             strcmp(categories[i], "X-Geeqie") == 0)
 195                                 {
 196                                 found = TRUE;
 197                                 break;
 198                                 }
 199                 if (!found) editor->hidden = TRUE;
 200                 g_strfreev(categories);
 201                 }
 202         else
 203                 {
 204                 editor->hidden = TRUE;
 205                 }
 206
 207         only_show_in = g_key_file_get_string_list(key_file, DESKTOP_GROUP, "OnlyShowIn", NULL, NULL);
 208         if (only_show_in)
 209                 {
 210                 gboolean found = FALSE;
 211                 gint i;
 212                 for (i = 0; only_show_in[i]; i++)
 213                         if (strcmp(only_show_in[i], "X-Geeqie") == 0)
 214                                 {
 215                                 found = TRUE;
 216                                 break;
 217                                 }
 218                 if (!found) editor->hidden = TRUE;
 219                 g_strfreev(only_show_in);
 220                 }
 221
 222         not_show_in = g_key_file_get_string_list(key_file, DESKTOP_GROUP, "NotShowIn", NULL, NULL);
 223         if (not_show_in)
 224                 {
 225                 gboolean found = FALSE;
 226                 gint i;
 227                 for (i = 0; not_show_in[i]; i++)
 228                         if (strcmp(not_show_in[i], "X-Geeqie") == 0)
 229                                 {
 230                                 found = TRUE;
 231                                 break;
 232                                 }
 233                 if (found) editor->hidden = TRUE;
 234                 g_strfreev(not_show_in);
 235                 }
 236
 237
 238         try_exec = g_key_file_get_string(key_file, DESKTOP_GROUP, "TryExec", NULL);
 239         if (try_exec && !editor->hidden)
 240                 {
 241                 gchar *try_exec_res = g_find_program_in_path(try_exec);
 242                 if (!try_exec_res) editor->hidden = TRUE;
 243                 g_free(try_exec_res);
 244                 g_free(try_exec);
 245                 }
 246
 247         if (editor->hidden)
 248                 {
 249                 /* hidden editors will be deleted, no need to parse the rest */
 250                 g_key_file_free(key_file);
 251                 return TRUE;
 252                 }
 253
 254         editor->name = g_key_file_get_locale_string(key_file, DESKTOP_GROUP, "Name", NULL, NULL);
 255         editor->icon = g_key_file_get_string(key_file, DESKTOP_GROUP, "Icon", NULL);
 256
 257         editor->exec = g_key_file_get_string(key_file, DESKTOP_GROUP, "Exec", NULL);
 258
 259         /* we take only editors that accept parameters, FIXME: the test can be improved */
 260         if (!strchr(editor->exec, '%')) editor->hidden = TRUE;
 261
 262         editor->menu_path = g_key_file_get_string(key_file, DESKTOP_GROUP, "X-Geeqie-Menu-Path", NULL);
 263         if (!editor->menu_path) editor->menu_path = g_strdup("EditMenu/ExternalMenu");
 264
 265         editor->hotkey = g_key_file_get_string(key_file, DESKTOP_GROUP, "X-Geeqie-Hotkey", NULL);
 266
 267         extensions = g_key_file_get_string(key_file, DESKTOP_GROUP, "X-Geeqie-File-Extensions", NULL);
 268         if (extensions)
 269                 editor->ext_list = filter_to_list(extensions);
 270         else
 271                 {
 272                 gchar **mime_types = g_key_file_get_string_list(key_file, DESKTOP_GROUP, "MimeType", NULL, NULL);
 273                 if (mime_types)
 274                         {
 275                         editor->ext_list = editor_mime_types_to_extensions(mime_types);
 276                         g_strfreev(mime_types);
 277                         if (!editor->ext_list) editor->hidden = TRUE;
 278                         }
 279                 }
 280
 281         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "X-Geeqie-Keep-Fullscreen", NULL)) editor->flags |= EDITOR_KEEP_FS;
 282         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "X-Geeqie-Verbose", NULL)) editor->flags |= EDITOR_VERBOSE;
 283         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "X-Geeqie-Verbose-Multi", NULL)) editor->flags |= EDITOR_VERBOSE_MULTI;
 284         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "X-Geeqie-Filter", NULL)) editor->flags |= EDITOR_DEST;
 285         if (g_key_file_get_boolean(key_file, DESKTOP_GROUP, "Terminal", NULL)) editor->flags |= EDITOR_TERMINAL;
 286
 287         editor->flags |= editor_command_parse(editor, NULL, NULL);
 288         g_key_file_free(key_file);
 289
 290         return TRUE;
 291 }
 292
 293 static gboolean editor_remove_desktop_file_cb(gpointer key, gpointer value, gpointer user_data)
 294 {
 295         EditorDescription *editor = value;
 296         return editor->hidden;
 297 }
 298
 299 static void editor_read_desktop_dir(const gchar *path)
 300 {
 301         DIR *dp;
 302         struct dirent *dir;
 303         gchar *pathl;
 304
 305         pathl = path_from_utf8(path);
 306         dp = opendir(pathl);
 307         g_free(pathl);
 308         if (!dp)
 309                 {
 310                 /* dir not found */
 311                 return;
 312                 }
 313         while ((dir = readdir(dp)) != NULL)
 314                 {
 315                 gchar *namel = dir->d_name;
 316
 317                 if (g_str_has_suffix(namel, ".desktop"))
 318                         {
 319                         gchar *name = path_to_utf8(namel);
 320                         gchar *dpath = g_build_filename(path, name, NULL);
 321                         editor_read_desktop_file(dpath);
 322                         g_free(dpath);
 323                         g_free(name);
 324                         }
 325                 }
 326         closedir(dp);
 327 }
 328
 329 void editor_load_descriptions(void)
 330 {
 331         gchar *path;
 332         gchar *xdg_data_dirs;
 333         gchar *all_dirs;
 334         gchar **split_dirs;
 335         gint i;
 336
 337         if (!editors)
 338                 {
 339                 editors = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, (GDestroyNotify)editor_description_free);
 340                 }
 341
 342         xdg_data_dirs = getenv("XDG_DATA_DIRS");
 343         if (xdg_data_dirs && xdg_data_dirs[0])
 344                 xdg_data_dirs = path_to_utf8(xdg_data_dirs);
 345         else
 346                 xdg_data_dirs = g_strdup("/usr/share");
 347
 348         all_dirs = g_strconcat(get_rc_dir(), ":", GQ_APP_DIR, ":", xdg_data_home_get(), ":", xdg_data_dirs, NULL);
 349
 350         g_free(xdg_data_dirs);
 351
 352         split_dirs = g_strsplit(all_dirs, ":", 0);
 353
 354         g_free(all_dirs);
 355
 356         for (i = 0; split_dirs[i]; i++)
 357                 {
 358                 path = g_build_filename(split_dirs[i], "applications", NULL);
 359                 editor_read_desktop_dir(path);
 360                 g_free(path);
 361                 }
 362
 363         g_strfreev(split_dirs);
 364
 365         g_hash_table_foreach_remove(editors, editor_remove_desktop_file_cb, NULL);
 366 }
 367
 368 static void editor_list_add_cb(gpointer key, gpointer value, gpointer data)
 369 {
 370         GList **listp = data;
 371         EditorDescription *editor = value;
 372
 373         /* do not show the special commands in any list, they are called explicitly */
 374         if (strcmp(editor->key, CMD_COPY) == 0 ||
 375             strcmp(editor->key, CMD_MOVE) == 0 ||
 376             strcmp(editor->key, CMD_RENAME) == 0 ||
 377             strcmp(editor->key, CMD_DELETE) == 0 ||
 378             strcmp(editor->key, CMD_FOLDER) == 0) return;
 379
 380         *listp = g_list_prepend(*listp, editor);
 381 }
 382
 383 static gint editor_sort(gconstpointer a, gconstpointer b)
 384 {
 385         const EditorDescription *ea = a;
 386         const EditorDescription *eb = b;
 387         gint ret;
 388
 389         ret = strcmp(ea->menu_path, eb->menu_path);
 390         if (ret != 0) return ret;
 391
 392         return g_utf8_collate(ea->name, eb->name);
 393 }
 394
 395 GList *editor_list_get(void)
 396 {
 397         GList *editors_list = NULL;
 398         g_hash_table_foreach(editors, editor_list_add_cb, &editors_list);
 399         editors_list = g_list_sort(editors_list, editor_sort);
 400
 401         return editors_list;
 402 }
 403
 404 /* ------------------------------ */
 405
 406
 407 static void editor_verbose_data_free(EditorData *ed)
 408 {
 409         if (!ed->vd) return;
 410         g_free(ed->vd);
 411         ed->vd = NULL;
 412 }
 413
 414 static void editor_data_free(EditorData *ed)
 415 {
 416         editor_verbose_data_free(ed);
 417         g_free(ed);
 418 }
 419
 420 static void editor_verbose_window_close(GenericDialog *gd, gpointer data)
 421 {
 422         EditorData *ed = data;
 423
 424         generic_dialog_close(gd);
 425         editor_verbose_data_free(ed);
 426         if (ed->pid == -1) editor_data_free(ed); /* the process has already terminated */
 427 }
 428
 429 static void editor_verbose_window_stop(GenericDialog *gd, gpointer data)
 430 {
 431         EditorData *ed = data;
 432         ed->stopping = TRUE;
 433         ed->count = 0;
 434         editor_verbose_window_progress(ed, _("stopping..."));
 435 }
 436
 437 static void editor_verbose_window_enable_close(EditorVerboseData *vd)
 438 {
 439         vd->gd->cancel_cb = editor_verbose_window_close;
 440
 441         spinner_set_interval(vd->spinner, -1);
 442         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 443         gtk_widget_set_sensitive(vd->button_close, TRUE);
 444 }
 445
 446 static EditorVerboseData *editor_verbose_window(EditorData *ed, const gchar *text)
 447 {
 448         EditorVerboseData *vd;
 449         GtkWidget *scrolled;
 450         GtkWidget *hbox;
 451         gchar *buf;
 452
 453         vd = g_new0(EditorVerboseData, 1);
 454
 455         vd->gd = file_util_gen_dlg(_("Edit command results"), "editor_results",
 456                                    NULL, FALSE,
 457                                    NULL, ed);
 458         buf = g_strdup_printf(_("Output of %s"), text);
 459         generic_dialog_add_message(vd->gd, NULL, buf, NULL);
 460         g_free(buf);
 461         vd->button_stop = generic_dialog_add_button(vd->gd, GTK_STOCK_STOP, NULL,
 462                                                    editor_verbose_window_stop, FALSE);
 463         gtk_widget_set_sensitive(vd->button_stop, FALSE);
 464         vd->button_close = generic_dialog_add_button(vd->gd, GTK_STOCK_CLOSE, NULL,
 465                                                     editor_verbose_window_close, TRUE);
 466         gtk_widget_set_sensitive(vd->button_close, FALSE);
 467
 468         scrolled = gtk_scrolled_window_new(NULL, NULL);
 469         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
 470         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled),
 471                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 472         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), scrolled, TRUE, TRUE, 5);
 473         gtk_widget_show(scrolled);
 474
 475         vd->text = gtk_text_view_new();
 476         gtk_text_view_set_editable(GTK_TEXT_VIEW(vd->text), FALSE);
 477         gtk_widget_set_size_request(vd->text, EDITOR_WINDOW_WIDTH, EDITOR_WINDOW_HEIGHT);
 478         gtk_container_add(GTK_CONTAINER(scrolled), vd->text);
 479         gtk_widget_show(vd->text);
 480
 481         hbox = gtk_hbox_new(FALSE, 0);
 482         gtk_box_pack_start(GTK_BOX(vd->gd->vbox), hbox, FALSE, FALSE, 0);
 483         gtk_widget_show(hbox);
 484
 485         vd->progress = gtk_progress_bar_new();
 486         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(vd->progress), 0.0);
 487         gtk_box_pack_start(GTK_BOX(hbox), vd->progress, TRUE, TRUE, 0);
 488         gtk_widget_show(vd->progress);
 489
 490         vd->spinner = spinner_new(NULL, SPINNER_SPEED);
 491         gtk_box_pack_start(GTK_BOX(hbox), vd->spinner, FALSE, FALSE, 0);
 492         gtk_widget_show(vd->spinner);
 493
 494         gtk_widget_show(vd->gd->dialog);
 495
 496         ed->vd = vd;
 497         return vd;
 498 }
 499
 500 static void editor_verbose_window_fill(EditorVerboseData *vd, gchar *text, gint len)
 501 {
 502         GtkTextBuffer *buffer;
 503         GtkTextIter iter;
 504
 505         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(vd->text));
 506         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 507         gtk_text_buffer_insert(buffer, &iter, text, len);
 508 }
 509
 510 static void editor_verbose_window_progress(EditorData *ed, const gchar *text)
 511 {
 512         if (!ed->vd) return;
 513
 514         if (ed->total)
 515                 {
 516                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(ed->vd->progress), (gdouble)ed->count / ed->total);
 517                 }
 518
 519         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(ed->vd->progress), (text) ? text : "");
 520 }
 521
 522 static gboolean editor_verbose_io_cb(GIOChannel *source, GIOCondition condition, gpointer data)
 523 {
 524         EditorData *ed = data;
 525         gchar buf[512];
 526         gsize count;
 527
 528         if (condition & G_IO_IN)
 529                 {
 530                 while (g_io_channel_read_chars(source, buf, sizeof(buf), &count, NULL) == G_IO_STATUS_NORMAL)
 531                         {
 532                         if (!g_utf8_validate(buf, count, NULL))
 533                                 {
 534                                 gchar *utf8;
 535
 536                                 utf8 = g_locale_to_utf8(buf, count, NULL, NULL, NULL);
 537                                 if (utf8)
 538                                         {
 539                                         editor_verbose_window_fill(ed->vd, utf8, -1);
 540                                         g_free(utf8);
 541                                         }
 542                                 else
 543                                         {
 544                                         editor_verbose_window_fill(ed->vd, "Error converting text to valid utf8\n", -1);
 545                                         }
 546                                 }
 547                         else
 548                                 {
 549                                 editor_verbose_window_fill(ed->vd, buf, count);
 550                                 }
 551                         }
 552                 }
 553
 554         if (condition & (G_IO_ERR | G_IO_HUP))
 555                 {
 556                 g_io_channel_shutdown(source, TRUE, NULL);
 557                 return FALSE;
 558                 }
 559
 560         return TRUE;
 561 }
 562
 563 typedef enum {
 564         PATH_FILE,
 565         PATH_FILE_URL,
 566         PATH_DEST
 567 } PathType;
 568
 569
 570 static gchar *editor_command_path_parse(const FileData *fd, PathType type, const EditorDescription *editor)
 571 {
 572         GString *string;
 573         gchar *pathl;
 574         const gchar *p = NULL;
 575
 576         string = g_string_new("");
 577
 578         if (type == PATH_FILE || type == PATH_FILE_URL)
 579                 {
 580                 GList *work = editor->ext_list;
 581
 582                 if (!work)
 583                         p = fd->path;
 584                 else
 585                         {
 586                         while (work)
 587                                 {
 588                                 GList *work2;
 589                                 gchar *ext = work->data;
 590                                 work = work->next;
 591
 592                                 if (strcmp(ext, "*") == 0 ||
 593                                     g_ascii_strcasecmp(ext, fd->extension) == 0)
 594                                         {
 595                                         p = fd->path;
 596                                         break;
 597                                         }
 598
 599                                 work2 = fd->sidecar_files;
 600                                 while (work2)
 601                                         {
 602                                         FileData *sfd = work2->data;
 603                                         work2 = work2->next;
 604
 605                                         if (g_ascii_strcasecmp(ext, sfd->extension) == 0)
 606                                                 {
 607                                                 p = sfd->path;
 608                                                 break;
 609                                                 }
 610                                         }
 611                                 if (p) break;
 612                                 }
 613                         if (!p) return NULL;
 614                         }
 615                 }
 616         else if (type == PATH_DEST)
 617                 {
 618                 if (fd->change && fd->change->dest)
 619                         p = fd->change->dest;
 620                 else
 621                         p = "";
 622                 }
 623
 624         g_assert(p);
 625         while (*p != '\0')
 626                 {
 627                 /* must escape \, ", `, and $ to avoid problems,
 628                  * we assume system shell supports bash-like escaping
 629                  */
 630                 if (strchr("\\\"`$", *p) != NULL)
 631                         {
 632                         string = g_string_append_c(string, '\\');
 633                         }
 634                 string = g_string_append_c(string, *p);
 635                 p++;
 636                 }
 637
 638         if (type == PATH_FILE_URL) g_string_prepend(string, "file://");
 639         pathl = path_from_utf8(string->str);
 640         g_string_free(string, TRUE);
 641
 642         if (pathl && !pathl[0]) /* empty string case */
 643                 {
 644                 g_free(pathl);
 645                 pathl = NULL;
 646                 }
 647
 648         return pathl;
 649 }
 650
 651
 652 EditorFlags editor_command_parse(const EditorDescription *editor, GList *list, gchar **output)
 653 {
 654         EditorFlags flags = 0;
 655         const gchar *p;
 656         GString *result = NULL;
 657
 658         if (output)
 659                 result = g_string_new("");
 660
 661         if (editor->exec[0] == '\0')
 662                 {
 663                 flags |= EDITOR_ERROR_EMPTY;
 664                 goto err;
 665                 }
 666
 667         p = editor->exec;
 668         /* skip leading whitespaces if any */
 669         while (g_ascii_isspace(*p)) p++;
 670
 671         /* command */
 672
 673         while (*p)
 674                 {
 675                 if (*p != '%')
 676                         {
 677                         if (output) result = g_string_append_c(result, *p);
 678                         }
 679                 else /* *p == '%' */
 680                         {
 681                         gchar *pathl = NULL;
 682
 683                         p++;
 684
 685                         switch (*p)
 686                                 {
 687                                 case 'f': /* single file */
 688                                 case 'u': /* single url */
 689                                         flags |= EDITOR_FOR_EACH;
 690                                         if (flags & EDITOR_SINGLE_COMMAND)
 691                                                 {
 692                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 693                                                 goto err;
 694                                                 }
 695                                         if (list)
 696                                                 {
 697                                                 /* use the first file from the list */
 698                                                 if (!list->data)
 699                                                         {
 700                                                         flags |= EDITOR_ERROR_NO_FILE;
 701                                                         goto err;
 702                                                         }
 703                                                 pathl = editor_command_path_parse((FileData *)list->data,
 704                                                                                   (*p == 'f') ? PATH_FILE : PATH_FILE_URL,
 705                                                                                   editor);
 706                                                 if (!pathl)
 707                                                         {
 708                                                         flags |= EDITOR_ERROR_NO_FILE;
 709                                                         goto err;
 710                                                         }
 711                                                 if (output)
 712                                                         {
 713                                                         result = g_string_append_c(result, '"');
 714                                                         result = g_string_append(result, pathl);
 715                                                         result = g_string_append_c(result, '"');
 716                                                         }
 717                                                 g_free(pathl);
 718                                                 }
 719                                         break;
 720
 721                                 case 'F':
 722                                 case 'U':
 723                                         flags |= EDITOR_SINGLE_COMMAND;
 724                                         if (flags & (EDITOR_FOR_EACH | EDITOR_DEST))
 725                                                 {
 726                                                 flags |= EDITOR_ERROR_INCOMPATIBLE;
 727                                                 goto err;
 728                                                 }
 729
 730                                         if (list)
 731                                                 {
 732                                                 /* use whole list */
 733                                                 GList *work = list;
 734                                                 gboolean ok = FALSE;
 735
 736                                                 while (work)
 737                                                         {
 738                                                         FileData *fd = work->data;
 739                                                         pathl = editor_command_path_parse(fd, (*p == 'F') ? PATH_FILE : PATH_FILE_URL, editor);
 740                                                         if (pathl)
 741                                                                 {
 742                                                                 ok = TRUE;
 743
 744                                                                 if (output)
 745                                                                         {
 746                                                                         ok = TRUE;
 747                                                                         if (work != list) g_string_append_c(result, ' ');
 748                                                                         result = g_string_append_c(result, '"');
 749                                                                         result = g_string_append(result, pathl);
 750                                                                         result = g_string_append_c(result, '"');
 751                                                                         }
 752                                                                 g_free(pathl);
 753                                                                 }
 754                                                         work = work->next;
 755                                                         }
 756                                                 if (!ok)
 757                                                         {
 758                                                         flags |= EDITOR_ERROR_NO_FILE;
 759                                                         goto err;
 760                                                         }
 761                                                 }
 762                                         break;
 763                                 case 'i':
 764                                         if (output)
 765                                                 {
 766                                                 result = g_string_append(result, editor->icon);
 767                                                 }
 768                                         break;
 769                                 case 'c':
 770                                         if (output)
 771                                                 {
 772                                                 result = g_string_append(result, editor->name);
 773                                                 }
 774                                         break;
 775                                 case 'k':
 776                                         if (output)
 777                                                 {
 778                                                 result = g_string_append(result, editor->file);
 779                                                 }
 780                                         break;
 781                                 case '%':
 782                                         /* %% = % escaping */
 783                                         if (output) result = g_string_append_c(result, *p);
 784                                         break;
 785                                 case 'd':
 786                                 case 'D':
 787                                 case 'n':
 788                                 case 'N':
 789                                 case 'v':
 790                                 case 'm':
 791                                         /* deprecated according to spec, ignore */
 792                                         break;
 793                                 default:
 794                                         flags |= EDITOR_ERROR_SYNTAX;
 795                                         goto err;
 796                                 }
 797                         }
 798                 p++;
 799                 }
 800
 801         if (output) *output = g_string_free(result, FALSE);
 802         return flags;
 803
 804
 805 err:
 806         if (output)
 807                 {
 808                 g_string_free(result, TRUE);
 809                 *output = NULL;
 810                 }
 811         return flags;
 812 }
 813
 814
 815 static void editor_child_exit_cb(GPid pid, gint status, gpointer data)
 816 {
 817         EditorData *ed = data;
 818         g_spawn_close_pid(pid);
 819         ed->pid = -1;
 820
 821         editor_command_next_finish(ed, status);
 822 }
 823
 824
 825 static EditorFlags editor_command_one(const EditorDescription *editor, GList *list, EditorData *ed)
 826 {
 827         gchar *command;
 828         FileData *fd = list->data;
 829         GPid pid;
 830         gint standard_output;
 831         gint standard_error;
 832         gboolean ok;
 833
 834         ed->pid = -1;
 835         ed->flags = editor->flags;
 836         ed->flags |= editor_command_parse(editor, list, &command);
 837
 838         ok = !EDITOR_ERRORS(ed->flags);
 839
 840         if (ok)
 841                 {
 842                 ok = (options->shell.path && *options->shell.path);
 843                 if (!ok) log_printf("ERROR: empty shell command\n");
 844
 845                 if (ok)
 846                         {
 847                         ok = (access(options->shell.path, X_OK) == 0);
 848                         if (!ok) log_printf("ERROR: cannot execute shell command '%s'\n", options->shell.path);
 849                         }
 850
 851                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 852                 }
 853
 854         if (ok)
 855                 {
 856                 gchar *working_directory;
 857                 gchar *args[4];
 858                 guint n = 0;
 859
 860                 working_directory = remove_level_from_path(fd->path);
 861                 args[n++] = options->shell.path;
 862                 if (options->shell.options && *options->shell.options)
 863                         args[n++] = options->shell.options;
 864                 args[n++] = command;
 865                 args[n] = NULL;
 866
 867                 if ((ed->flags & EDITOR_DEST) && fd->change && fd->change->dest) /* FIXME: error handling */
 868                         {
 869                         g_setenv("GEEQIE_DESTINATION", fd->change->dest, TRUE);
 870                         }
 871                 else
 872                         {
 873                         g_unsetenv("GEEQIE_DESTINATION");
 874                         }
 875
 876                 ok = g_spawn_async_with_pipes(working_directory, args, NULL,
 877                                       G_SPAWN_DO_NOT_REAP_CHILD, /* GSpawnFlags */
 878                                       NULL, NULL,
 879                                       &pid,
 880                                       NULL,
 881                                       ed->vd ? &standard_output : NULL,
 882                                       ed->vd ? &standard_error : NULL,
 883                                       NULL);
 884
 885                 g_free(working_directory);
 886
 887                 if (!ok) ed->flags |= EDITOR_ERROR_CANT_EXEC;
 888                 }
 889
 890         if (ok)
 891                 {
 892                 g_child_watch_add(pid, editor_child_exit_cb, ed);
 893                 ed->pid = pid;
 894                 }
 895
 896         if (ed->vd)
 897                 {
 898                 if (!ok)
 899                         {
 900                         gchar *buf;
 901
 902                         buf = g_strdup_printf(_("Failed to run command:\n%s\n"), editor->file);
 903                         editor_verbose_window_fill(ed->vd, buf, strlen(buf));
 904                         g_free(buf);
 905
 906                         }
 907                 else
 908                         {
 909                         GIOChannel *channel_output;
 910                         GIOChannel *channel_error;
 911
 912                         channel_output = g_io_channel_unix_new(standard_output);
 913                         g_io_channel_set_flags(channel_output, G_IO_FLAG_NONBLOCK, NULL);
 914                         g_io_channel_set_encoding(channel_output, NULL, NULL);
 915
 916                         g_io_add_watch_full(channel_output, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 917                                             editor_verbose_io_cb, ed, NULL);
 918                         g_io_channel_unref(channel_output);
 919
 920                         channel_error = g_io_channel_unix_new(standard_error);
 921                         g_io_channel_set_flags(channel_error, G_IO_FLAG_NONBLOCK, NULL);
 922                         g_io_channel_set_encoding(channel_error, NULL, NULL);
 923
 924                         g_io_add_watch_full(channel_error, G_PRIORITY_HIGH, G_IO_IN | G_IO_ERR | G_IO_HUP,
 925                                             editor_verbose_io_cb, ed, NULL);
 926                         g_io_channel_unref(channel_error);
 927                         }
 928                 }
 929
 930         g_free(command);
 931
 932         return EDITOR_ERRORS(ed->flags);
 933 }
 934
 935 static EditorFlags editor_command_next_start(EditorData *ed)
 936 {
 937         if (ed->vd) editor_verbose_window_fill(ed->vd, "\n", 1);
 938
 939         if (ed->list && ed->count < ed->total)
 940                 {
 941                 FileData *fd;
 942                 EditorFlags error;
 943
 944                 fd = ed->list->data;
 945
 946                 if (ed->vd)
 947                         {
 948                         if (ed->flags & EDITOR_FOR_EACH)
 949                                 editor_verbose_window_progress(ed, fd->path);
 950                         else
 951                                 editor_verbose_window_progress(ed, _("running..."));
 952                         }
 953                 ed->count++;
 954
 955                 error = editor_command_one(ed->editor, ed->list, ed);
 956                 if (!error && ed->vd)
 957                         {
 958                         gtk_widget_set_sensitive(ed->vd->button_stop, (ed->list != NULL) );
 959                         if (ed->flags & EDITOR_FOR_EACH)
 960                                 {
 961                                 editor_verbose_window_fill(ed->vd, fd->path, strlen(fd->path));
 962                                 editor_verbose_window_fill(ed->vd, "\n", 1);
 963                                 }
 964                         }
 965
 966                 if (!error)
 967                         return 0;
 968
 969                 /* command was not started, call the finish immediately */
 970                 return editor_command_next_finish(ed, 0);
 971                 }
 972
 973         /* everything is done */
 974         return editor_command_done(ed);
 975 }
 976
 977 static EditorFlags editor_command_next_finish(EditorData *ed, gint status)
 978 {
 979         gint cont = ed->stopping ? EDITOR_CB_SKIP : EDITOR_CB_CONTINUE;
 980
 981         if (status)
 982                 ed->flags |= EDITOR_ERROR_STATUS;
 983
 984         if (ed->flags & EDITOR_FOR_EACH)
 985                 {
 986                 /* handle the first element from the list */
 987                 GList *fd_element = ed->list;
 988
 989                 ed->list = g_list_remove_link(ed->list, fd_element);
 990                 if (ed->callback)
 991                         {
 992                         cont = ed->callback(ed->list ? ed : NULL, ed->flags, fd_element, ed->data);
 993                         if (ed->stopping && cont == EDITOR_CB_CONTINUE) cont = EDITOR_CB_SKIP;
 994                         }
 995                 filelist_free(fd_element);
 996                 }
 997         else
 998                 {
 999                 /* handle whole list */
1000                 if (ed->callback)
1001                         cont = ed->callback(NULL, ed->flags, ed->list, ed->data);
1002                 filelist_free(ed->list);
1003                 ed->list = NULL;
1004                 }
1005
1006         switch (cont)
1007                 {
1008                 case EDITOR_CB_SUSPEND:
1009                         return EDITOR_ERRORS(ed->flags);
1010                 case EDITOR_CB_SKIP:
1011                         return editor_command_done(ed);
1012                 }
1013
1014         return editor_command_next_start(ed);
1015 }
1016
1017 static EditorFlags editor_command_done(EditorData *ed)
1018 {
1019         EditorFlags flags;
1020
1021         if (ed->vd)
1022                 {
1023                 if (ed->count == ed->total)
1024                         {
1025                         editor_verbose_window_progress(ed, _("done"));
1026                         }
1027                 else
1028                         {
1029                         editor_verbose_window_progress(ed, _("stopped by user"));
1030                         }
1031                 editor_verbose_window_enable_close(ed->vd);
1032                 }
1033
1034         /* free the not-handled items */
1035         if (ed->list)
1036                 {
1037                 ed->flags |= EDITOR_ERROR_SKIPPED;
1038                 if (ed->callback) ed->callback(NULL, ed->flags, ed->list, ed->data);
1039                 filelist_free(ed->list);
1040                 ed->list = NULL;
1041                 }
1042
1043         ed->count = 0;
1044
1045         flags = EDITOR_ERRORS(ed->flags);
1046
1047         if (!ed->vd) editor_data_free(ed);
1048
1049         return flags;
1050 }
1051
1052 void editor_resume(gpointer ed)
1053 {
1054         editor_command_next_start(ed);
1055 }
1056
1057 void editor_skip(gpointer ed)
1058 {
1059         editor_command_done(ed);
1060 }
1061
1062 static EditorFlags editor_command_start(const EditorDescription *editor, const gchar *text, GList *list, EditorCallback cb, gpointer data)
1063 {
1064         EditorData *ed;
1065         EditorFlags flags = editor->flags;
1066
1067         if (EDITOR_ERRORS(flags)) return EDITOR_ERRORS(flags);
1068
1069         ed = g_new0(EditorData, 1);
1070         ed->list = filelist_copy(list);
1071         ed->flags = flags;
1072         ed->editor = editor;
1073         ed->total = (flags & EDITOR_SINGLE_COMMAND) ? 1 : g_list_length(list);
1074         ed->callback = cb;
1075         ed->data =  data;
1076
1077         if ((flags & EDITOR_VERBOSE_MULTI) && list && list->next)
1078                 flags |= EDITOR_VERBOSE;
1079
1080         if (flags & EDITOR_VERBOSE)
1081                 editor_verbose_window(ed, text);
1082
1083         editor_command_next_start(ed);
1084         /* errors from editor_command_next_start will be handled via callback */
1085         return EDITOR_ERRORS(flags);
1086 }
1087
1088 gboolean is_valid_editor_command(const gchar *key)
1089 {
1090         if (!key) return FALSE;
1091         return g_hash_table_lookup(editors, key) != NULL;
1092 }
1093
1094 EditorFlags start_editor_from_filelist_full(const gchar *key, GList *list, EditorCallback cb, gpointer data)
1095 {
1096         EditorFlags error;
1097         EditorDescription *editor;
1098         if (!key) return FALSE;
1099
1100         editor = g_hash_table_lookup(editors, key);
1101
1102         if (!list) return FALSE;
1103         if (!editor) return FALSE;
1104
1105         error = editor_command_start(editor, editor->name, list, cb, data);
1106
1107         if (EDITOR_ERRORS(error))
1108                 {
1109                 gchar *text = g_strdup_printf(_("%s\n\"%s\""), editor_get_error_str(error), editor->file);
1110
1111                 file_util_warning_dialog(_("Invalid editor command"), text, GTK_STOCK_DIALOG_ERROR, NULL);
1112                 g_free(text);
1113                 }
1114
1115         return error;
1116 }
1117
1118 EditorFlags start_editor_from_filelist(const gchar *key, GList *list)
1119 {
1120         return start_editor_from_filelist_full(key, list,  NULL, NULL);
1121 }
1122
1123 EditorFlags start_editor_from_file_full(const gchar *key, FileData *fd, EditorCallback cb, gpointer data)
1124 {
1125         GList *list;
1126         EditorFlags error;
1127
1128         if (!fd) return FALSE;
1129
1130         list = g_list_append(NULL, fd);
1131         error = start_editor_from_filelist_full(key, list, cb, data);
1132         g_list_free(list);
1133         return error;
1134 }
1135
1136 EditorFlags start_editor_from_file(const gchar *key, FileData *fd)
1137 {
1138         return start_editor_from_file_full(key, fd, NULL, NULL);
1139 }
1140
1141 gboolean editor_window_flag_set(const gchar *key)
1142 {
1143         EditorDescription *editor;
1144         if (!key) return TRUE;
1145
1146         editor = g_hash_table_lookup(editors, key);
1147         if (!editor) return TRUE;
1148
1149         return !!(editor->flags & EDITOR_KEEP_FS);
1150 }
1151
1152 gboolean editor_is_filter(const gchar *key)
1153 {
1154         EditorDescription *editor;
1155         if (!key) return TRUE;
1156
1157         editor = g_hash_table_lookup(editors, key);
1158         if (!editor) return TRUE;
1159
1160         return !!(editor->flags & EDITOR_DEST);
1161 }
1162
1163 const gchar *editor_get_error_str(EditorFlags flags)
1164 {
1165         if (flags & EDITOR_ERROR_EMPTY) return _("Editor template is empty.");
1166         if (flags & EDITOR_ERROR_SYNTAX) return _("Editor template has incorrect syntax.");
1167         if (flags & EDITOR_ERROR_INCOMPATIBLE) return _("Editor template uses incompatible macros.");
1168         if (flags & EDITOR_ERROR_NO_FILE) return _("Can't find matching file type.");
1169         if (flags & EDITOR_ERROR_CANT_EXEC) return _("Can't execute external editor.");
1170         if (flags & EDITOR_ERROR_STATUS) return _("External editor returned error status.");
1171         if (flags & EDITOR_ERROR_SKIPPED) return _("File was skipped.");
1172         return _("Unknown error.");
1173 }
1174
1175 const gchar *editor_get_name(const gchar *key)
1176 {
1177         EditorDescription *editor = g_hash_table_lookup(editors, key);
1178
1179         if (!editor) return NULL;
1180
1181         return editor->name;
1182 }
1183 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */