libempathy-gtk/empathy-ui-utils.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2002-2007 Imendio AB
   4  * Copyright (C) 2007-2008 Collabora Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  19  * Boston, MA  02110-1301  USA
  20  *
  21  * Authors: Mikael Hallendal <micke@imendio.com>
  22  *          Richard Hult <richard@imendio.com>
  23  *          Martyn Russell <martyn@imendio.com>
  24  *          Xavier Claessens <xclaesse@gmail.com>
  25  *          Jonny Lamb <jonny.lamb@collabora.co.uk>
  26  *
  27  *          Part of this file is copied from GtkSourceView (gtksourceiter.c):
  28  *          Paolo Maggi
  29  *          Jeroen Zwartepoorte
  30  */
  31
  32 #include <config.h>
  33
  34 #include <string.h>
  35 #include <X11/Xatom.h>
  36 #include <gdk/gdkx.h>
  37 #include <glib/gi18n-lib.h>
  38 #include <gtk/gtk.h>
  39 #include <gio/gio.h>
  40
  41 #include "empathy-ui-utils.h"
  42 #include "empathy-images.h"
  43 #include "empathy-smiley-manager.h"
  44 #include "empathy-conf.h"
  45
  46 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  47 #include <libempathy/empathy-debug.h>
  48 #include <libempathy/empathy-utils.h>
  49 #include <libempathy/empathy-dispatcher.h>
  50 #include <libempathy/empathy-idle.h>
  51 #include <libempathy/empathy-ft-factory.h>
  52
  53 #define SCHEMES   "([a-zA-Z\\+]+)"
  54 #define BODY_CHAR "[^\\ \\n\"\']"
  55 #define BODY      "("BODY_CHAR"+)"
  56 #define END_BODY  "("BODY_CHAR"*[^,;\?><()\\ \"\'\\.\\n])"
  57 #define URI_REGEX "("SCHEMES"://"END_BODY")" \
  58                   "|((mailto:)?"BODY"@"BODY"\\."END_BODY")"\
  59                   "|((www|ftp)\\."END_BODY")"
  60
  61 void
  62 empathy_gtk_init (void)
  63 {
  64         static gboolean initialized = FALSE;
  65
  66         if (initialized)
  67                 return;
  68
  69         empathy_init ();
  70         gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (),
  71                                            PKGDATADIR G_DIR_SEPARATOR_S "icons");
  72
  73         initialized = TRUE;
  74 }
  75
  76 GRegex *
  77 empathy_uri_regex_dup_singleton (void)
  78 {
  79         static GRegex *uri_regex = NULL;
  80
  81         /* We intentionally leak the regex so it's not recomputed */
  82         if (!uri_regex) {
  83                 uri_regex = g_regex_new (URI_REGEX, 0, 0, NULL);
  84         }
  85
  86         return g_regex_ref (uri_regex);
  87 }
  88
  89 static GtkBuilder *
  90 builder_get_file_valist (const gchar *filename,
  91                          const gchar *first_object,
  92                          va_list      args)
  93 {
  94         GtkBuilder  *gui;
  95         const gchar *name;
  96         GObject    **object_ptr;
  97         GError      *error = NULL;
  98
  99         DEBUG ("Loading file %s", filename);
 100
 101         gui = gtk_builder_new ();
 102         if (!gtk_builder_add_from_file (gui, filename, &error)) {
 103                 g_critical ("GtkBuilder Error (%s): %s",
 104                                 filename, error->message);
 105                 g_clear_error (&error);
 106                 g_object_unref (gui);
 107
 108                 /* we need to iterate and set all of the pointers to NULL */
 109                 for (name = first_object; name;
 110                      name = va_arg (args, const gchar *)) {
 111                         object_ptr = va_arg (args, GObject**);
 112
 113                         *object_ptr = NULL;
 114                 }
 115
 116                 return NULL;
 117         }
 118
 119         for (name = first_object; name; name = va_arg (args, const gchar *)) {
 120                 object_ptr = va_arg (args, GObject**);
 121
 122                 *object_ptr = gtk_builder_get_object (gui, name);
 123
 124                 if (!*object_ptr) {
 125                         g_warning ("File is missing object '%s'.", name);
 126                         continue;
 127                 }
 128         }
 129
 130         return gui;
 131 }
 132
 133 GtkBuilder *
 134 empathy_builder_get_file (const gchar *filename,
 135                           const gchar *first_object,
 136                           ...)
 137 {
 138         GtkBuilder *gui;
 139         va_list     args;
 140
 141         va_start (args, first_object);
 142         gui = builder_get_file_valist (filename, first_object, args);
 143         va_end (args);
 144
 145         return gui;
 146 }
 147
 148 void
 149 empathy_builder_connect (GtkBuilder *gui,
 150                          gpointer    user_data,
 151                          gchar      *first_object,
 152                          ...)
 153 {
 154         va_list      args;
 155         const gchar *name;
 156         const gchar *sig;
 157         GObject     *object;
 158         GCallback    callback;
 159
 160         va_start (args, first_object);
 161         for (name = first_object; name; name = va_arg (args, const gchar *)) {
 162                 sig = va_arg (args, const gchar *);
 163                 callback = va_arg (args, GCallback);
 164
 165                 object = gtk_builder_get_object (gui, name);
 166                 if (!object) {
 167                         g_warning ("File is missing object '%s'.", name);
 168                         continue;
 169                 }
 170
 171                 g_signal_connect (object, sig, callback, user_data);
 172         }
 173
 174         va_end (args);
 175 }
 176
 177 GtkWidget *
 178 empathy_builder_unref_and_keep_widget (GtkBuilder *gui,
 179                                        GtkWidget  *widget)
 180 {
 181         /* On construction gui sinks the initial reference to widget. When gui
 182          * is finalized it will drop its ref to widget. We take our own ref to
 183          * prevent widget being finalised. The widget is forced to have a
 184          * floating reference, like when it was initially unowned so that it can
 185          * be used like any other GtkWidget. */
 186
 187         g_object_ref (widget);
 188         g_object_force_floating (G_OBJECT (widget));
 189         g_object_unref (gui);
 190
 191         return widget;
 192 }
 193
 194 const gchar *
 195 empathy_icon_name_for_presence (TpConnectionPresenceType presence)
 196 {
 197         switch (presence) {
 198         case TP_CONNECTION_PRESENCE_TYPE_AVAILABLE:
 199                 return EMPATHY_IMAGE_AVAILABLE;
 200         case TP_CONNECTION_PRESENCE_TYPE_BUSY:
 201                 return EMPATHY_IMAGE_BUSY;
 202         case TP_CONNECTION_PRESENCE_TYPE_AWAY:
 203                 return EMPATHY_IMAGE_AWAY;
 204         case TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY:
 205                 return EMPATHY_IMAGE_EXT_AWAY;
 206         case TP_CONNECTION_PRESENCE_TYPE_HIDDEN:
 207                 return EMPATHY_IMAGE_HIDDEN;
 208         case TP_CONNECTION_PRESENCE_TYPE_OFFLINE:
 209         case TP_CONNECTION_PRESENCE_TYPE_ERROR:
 210         case TP_CONNECTION_PRESENCE_TYPE_UNKNOWN:
 211                 return EMPATHY_IMAGE_OFFLINE;
 212         case TP_CONNECTION_PRESENCE_TYPE_UNSET:
 213                 return NULL;
 214         }
 215
 216         return NULL;
 217 }
 218
 219 const gchar *
 220 empathy_icon_name_for_contact (EmpathyContact *contact)
 221 {
 222         TpConnectionPresenceType presence;
 223
 224         g_return_val_if_fail (EMPATHY_IS_CONTACT (contact),
 225                               EMPATHY_IMAGE_OFFLINE);
 226
 227         presence = empathy_contact_get_presence (contact);
 228         return empathy_icon_name_for_presence (presence);
 229 }
 230
 231 GdkPixbuf *
 232 empathy_pixbuf_from_data (gchar *data,
 233                           gsize  data_size)
 234 {
 235         return empathy_pixbuf_from_data_and_mime (data, data_size, NULL);
 236 }
 237
 238 GdkPixbuf *
 239 empathy_pixbuf_from_data_and_mime (gchar  *data,
 240                                    gsize   data_size,
 241                                    gchar **mime_type)
 242 {
 243         GdkPixbufLoader *loader;
 244         GdkPixbufFormat *format;
 245         GdkPixbuf       *pixbuf = NULL;
 246         gchar          **mime_types;
 247         GError          *error = NULL;
 248
 249         if (!data) {
 250                 return NULL;
 251         }
 252
 253         loader = gdk_pixbuf_loader_new ();
 254         if (!gdk_pixbuf_loader_write (loader, (guchar *) data, data_size, &error)) {
 255                 DEBUG ("Failed to write to pixbuf loader: %s",
 256                         error ? error->message : "No error given");
 257                 goto out;
 258         }
 259         if (!gdk_pixbuf_loader_close (loader, &error)) {
 260                 DEBUG ("Failed to close pixbuf loader: %s",
 261                         error ? error->message : "No error given");
 262                 goto out;
 263         }
 264
 265         pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
 266         if (pixbuf) {
 267                 g_object_ref (pixbuf);
 268
 269                 if (mime_type != NULL) {
 270                         format = gdk_pixbuf_loader_get_format (loader);
 271                         mime_types = gdk_pixbuf_format_get_mime_types (format);
 272
 273                         *mime_type = g_strdup (*mime_types);
 274                         if (mime_types[1] != NULL) {
 275                                 DEBUG ("Loader supports more than one mime "
 276                                         "type! Picking the first one, %s",
 277                                         *mime_type);
 278                         }
 279                         g_strfreev (mime_types);
 280                 }
 281         }
 282
 283 out:
 284         g_clear_error (&error);
 285         g_object_unref (loader);
 286
 287         return pixbuf;
 288 }
 289
 290 struct SizeData {
 291         gint     width;
 292         gint     height;
 293         gboolean preserve_aspect_ratio;
 294 };
 295
 296 static void
 297 pixbuf_from_avatar_size_prepared_cb (GdkPixbufLoader *loader,
 298                                      int              width,
 299                                      int              height,
 300                                      struct SizeData *data)
 301 {
 302         g_return_if_fail (width > 0 && height > 0);
 303
 304         if (data->preserve_aspect_ratio && (data->width > 0 || data->height > 0)) {
 305                 if (width < data->width && height < data->height) {
 306                         width = width;
 307                         height = height;
 308                 }
 309
 310                 if (data->width < 0) {
 311                         width = width * (double) data->height / (gdouble) height;
 312                         height = data->height;
 313                 } else if (data->height < 0) {
 314                         height = height * (double) data->width / (double) width;
 315                         width = data->width;
 316                 } else if ((double) height * (double) data->width >
 317                            (double) width * (double) data->height) {
 318                         width = 0.5 + (double) width * (double) data->height / (double) height;
 319                         height = data->height;
 320                 } else {
 321                         height = 0.5 + (double) height * (double) data->width / (double) width;
 322                         width = data->width;
 323                 }
 324         } else {
 325                 if (data->width > 0) {
 326                         width = data->width;
 327                 }
 328
 329                 if (data->height > 0) {
 330                         height = data->height;
 331                 }
 332         }
 333
 334         gdk_pixbuf_loader_set_size (loader, width, height);
 335 }
 336
 337 static void
 338 empathy_avatar_pixbuf_roundify (GdkPixbuf *pixbuf)
 339 {
 340         gint width, height, rowstride;
 341         guchar *pixels;
 342
 343         width = gdk_pixbuf_get_width (pixbuf);
 344         height = gdk_pixbuf_get_height (pixbuf);
 345         rowstride = gdk_pixbuf_get_rowstride (pixbuf);
 346         pixels = gdk_pixbuf_get_pixels (pixbuf);
 347
 348         if (width < 6 || height < 6) {
 349                 return;
 350         }
 351
 352         /* Top left */
 353         pixels[3] = 0;
 354         pixels[7] = 0x80;
 355         pixels[11] = 0xC0;
 356         pixels[rowstride + 3] = 0x80;
 357         pixels[rowstride * 2 + 3] = 0xC0;
 358
 359         /* Top right */
 360         pixels[width * 4 - 1] = 0;
 361         pixels[width * 4 - 5] = 0x80;
 362         pixels[width * 4 - 9] = 0xC0;
 363         pixels[rowstride + (width * 4) - 1] = 0x80;
 364         pixels[(2 * rowstride) + (width * 4) - 1] = 0xC0;
 365
 366         /* Bottom left */
 367         pixels[(height - 1) * rowstride + 3] = 0;
 368         pixels[(height - 1) * rowstride + 7] = 0x80;
 369         pixels[(height - 1) * rowstride + 11] = 0xC0;
 370         pixels[(height - 2) * rowstride + 3] = 0x80;
 371         pixels[(height - 3) * rowstride + 3] = 0xC0;
 372
 373         /* Bottom right */
 374         pixels[height * rowstride - 1] = 0;
 375         pixels[(height - 1) * rowstride - 1] = 0x80;
 376         pixels[(height - 2) * rowstride - 1] = 0xC0;
 377         pixels[height * rowstride - 5] = 0x80;
 378         pixels[height * rowstride - 9] = 0xC0;
 379 }
 380
 381 static gboolean
 382 empathy_gdk_pixbuf_is_opaque (GdkPixbuf *pixbuf)
 383 {
 384         gint width, height, rowstride, i;
 385         guchar *pixels;
 386         guchar *row;
 387
 388         width = gdk_pixbuf_get_width (pixbuf);
 389         height = gdk_pixbuf_get_height (pixbuf);
 390         rowstride = gdk_pixbuf_get_rowstride (pixbuf);
 391         pixels = gdk_pixbuf_get_pixels (pixbuf);
 392
 393         row = pixels;
 394         for (i = 3; i < rowstride; i+=4) {
 395                 if (row[i] < 0xfe) {
 396                         return FALSE;
 397                 }
 398         }
 399
 400         for (i = 1; i < height - 1; i++) {
 401                 row = pixels + (i*rowstride);
 402                 if (row[3] < 0xfe || row[rowstride-1] < 0xfe) {
 403                         return FALSE;
 404                 }
 405         }
 406
 407         row = pixels + ((height-1) * rowstride);
 408         for (i = 3; i < rowstride; i+=4) {
 409                 if (row[i] < 0xfe) {
 410                         return FALSE;
 411                 }
 412         }
 413
 414         return TRUE;
 415 }
 416
 417 GdkPixbuf *
 418 empathy_pixbuf_from_avatar_scaled (EmpathyAvatar *avatar,
 419                                   gint          width,
 420                                   gint          height)
 421 {
 422         GdkPixbuf        *pixbuf;
 423         GdkPixbufLoader  *loader;
 424         struct SizeData   data;
 425         GError           *error = NULL;
 426
 427         if (!avatar) {
 428                 return NULL;
 429         }
 430
 431         data.width = width;
 432         data.height = height;
 433         data.preserve_aspect_ratio = TRUE;
 434
 435         loader = gdk_pixbuf_loader_new ();
 436
 437         g_signal_connect (loader, "size-prepared",
 438                           G_CALLBACK (pixbuf_from_avatar_size_prepared_cb),
 439                           &data);
 440
 441         if (!gdk_pixbuf_loader_write (loader, avatar->data, avatar->len, &error)) {
 442                 g_warning ("Couldn't write avatar image:%p with "
 443                            "length:%" G_GSIZE_FORMAT " to pixbuf loader: %s",
 444                            avatar->data, avatar->len, error->message);
 445                 g_error_free (error);
 446                 return NULL;
 447         }
 448
 449         gdk_pixbuf_loader_close (loader, NULL);
 450
 451         pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
 452         if (!gdk_pixbuf_get_has_alpha (pixbuf)) {
 453                 GdkPixbuf *rounded_pixbuf;
 454
 455                 rounded_pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
 456                                                  gdk_pixbuf_get_width (pixbuf),
 457                                                  gdk_pixbuf_get_height (pixbuf));
 458                 gdk_pixbuf_copy_area (pixbuf, 0, 0,
 459                                       gdk_pixbuf_get_width (pixbuf),
 460                                       gdk_pixbuf_get_height (pixbuf),
 461                                       rounded_pixbuf,
 462                                       0, 0);
 463                 pixbuf = rounded_pixbuf;
 464         } else {
 465                 g_object_ref (pixbuf);
 466         }
 467
 468         if (empathy_gdk_pixbuf_is_opaque (pixbuf)) {
 469                 empathy_avatar_pixbuf_roundify (pixbuf);
 470         }
 471
 472         g_object_unref (loader);
 473
 474         return pixbuf;
 475 }
 476
 477 GdkPixbuf *
 478 empathy_pixbuf_avatar_from_contact_scaled (EmpathyContact *contact,
 479                                           gint           width,
 480                                           gint           height)
 481 {
 482         EmpathyAvatar *avatar;
 483
 484         g_return_val_if_fail (EMPATHY_IS_CONTACT (contact), NULL);
 485
 486         avatar = empathy_contact_get_avatar (contact);
 487
 488         return empathy_pixbuf_from_avatar_scaled (avatar, width, height);
 489 }
 490
 491 GdkPixbuf *
 492 empathy_pixbuf_scale_down_if_necessary (GdkPixbuf *pixbuf, gint max_size)
 493 {
 494         gint      width, height;
 495         gdouble   factor;
 496
 497         width = gdk_pixbuf_get_width (pixbuf);
 498         height = gdk_pixbuf_get_height (pixbuf);
 499
 500         if (width > 0 && (width > max_size || height > max_size)) {
 501                 factor = (gdouble) max_size / MAX (width, height);
 502
 503                 width = width * factor;
 504                 height = height * factor;
 505
 506                 return gdk_pixbuf_scale_simple (pixbuf,
 507                                                 width, height,
 508                                                 GDK_INTERP_HYPER);
 509         }
 510
 511         return g_object_ref (pixbuf);
 512 }
 513
 514 GdkPixbuf *
 515 empathy_pixbuf_from_icon_name_sized (const gchar *icon_name,
 516                                      gint size)
 517 {
 518         GtkIconTheme *theme;
 519         GdkPixbuf *pixbuf;
 520         GError *error = NULL;
 521
 522         if (!icon_name) {
 523                 return NULL;
 524         }
 525
 526         theme = gtk_icon_theme_get_default ();
 527
 528         pixbuf = gtk_icon_theme_load_icon (theme,
 529                                            icon_name,
 530                                            size,
 531                                            0,
 532                                            &error);
 533         if (error) {
 534                 DEBUG ("Error loading icon: %s", error->message);
 535                 g_clear_error (&error);
 536         }
 537
 538         return pixbuf;
 539 }
 540
 541 GdkPixbuf *
 542 empathy_pixbuf_from_icon_name (const gchar *icon_name,
 543                                GtkIconSize  icon_size)
 544 {
 545         gint  w, h;
 546         gint  size = 48;
 547
 548         if (!icon_name) {
 549                 return NULL;
 550         }
 551
 552         if (gtk_icon_size_lookup (icon_size, &w, &h)) {
 553                 size = (w + h) / 2;
 554         }
 555
 556         return empathy_pixbuf_from_icon_name_sized (icon_name, size);
 557 }
 558
 559 gchar *
 560 empathy_filename_from_icon_name (const gchar *icon_name,
 561                                  GtkIconSize  icon_size)
 562 {
 563         GtkIconTheme *icon_theme;
 564         GtkIconInfo  *icon_info;
 565         gint          w, h;
 566         gint          size = 48;
 567         gchar        *ret;
 568
 569         icon_theme = gtk_icon_theme_get_default ();
 570
 571         if (gtk_icon_size_lookup (icon_size, &w, &h)) {
 572                 size = (w + h) / 2;
 573         }
 574
 575         icon_info = gtk_icon_theme_lookup_icon (icon_theme, icon_name, size, 0);
 576         ret = g_strdup (gtk_icon_info_get_filename (icon_info));
 577         gtk_icon_info_free (icon_info);
 578
 579         return ret;
 580 }
 581
 582 /* Stolen from GtkSourceView, hence the weird intendation. Please keep it like
 583  * that to make it easier to apply changes from the original code.
 584  */
 585 #define GTK_TEXT_UNKNOWN_CHAR 0xFFFC
 586
 587 /* this function acts like g_utf8_offset_to_pointer() except that if it finds a
 588  * decomposable character it consumes the decomposition length from the given
 589  * offset.  So it's useful when the offset was calculated for the normalized
 590  * version of str, but we need a pointer to str itself. */
 591 static const gchar *
 592 pointer_from_offset_skipping_decomp (const gchar *str, gint offset)
 593 {
 594         gchar *casefold, *normal;
 595         const gchar *p, *q;
 596
 597         p = str;
 598         while (offset > 0)
 599         {
 600                 q = g_utf8_next_char (p);
 601                 casefold = g_utf8_casefold (p, q - p);
 602                 normal = g_utf8_normalize (casefold, -1, G_NORMALIZE_NFD);
 603                 offset -= g_utf8_strlen (normal, -1);
 604                 g_free (casefold);
 605                 g_free (normal);
 606                 p = q;
 607         }
 608         return p;
 609 }
 610
 611 static const gchar *
 612 g_utf8_strcasestr (const gchar *haystack, const gchar *needle)
 613 {
 614         gsize needle_len;
 615         gsize haystack_len;
 616         const gchar *ret = NULL;
 617         gchar *p;
 618         gchar *casefold;
 619         gchar *caseless_haystack;
 620         gint i;
 621
 622         g_return_val_if_fail (haystack != NULL, NULL);
 623         g_return_val_if_fail (needle != NULL, NULL);
 624
 625         casefold = g_utf8_casefold (haystack, -1);
 626         caseless_haystack = g_utf8_normalize (casefold, -1, G_NORMALIZE_NFD);
 627         g_free (casefold);
 628
 629         needle_len = g_utf8_strlen (needle, -1);
 630         haystack_len = g_utf8_strlen (caseless_haystack, -1);
 631
 632         if (needle_len == 0)
 633         {
 634                 ret = (gchar *) haystack;
 635                 goto finally_1;
 636         }
 637
 638         if (haystack_len < needle_len)
 639         {
 640                 ret = NULL;
 641                 goto finally_1;
 642         }
 643
 644         p = (gchar *) caseless_haystack;
 645         needle_len = strlen (needle);
 646         i = 0;
 647
 648         while (*p)
 649         {
 650                 if ((strncmp (p, needle, needle_len) == 0))
 651                 {
 652                         ret = pointer_from_offset_skipping_decomp (haystack, i);
 653                         goto finally_1;
 654                 }
 655
 656                 p = g_utf8_next_char (p);
 657                 i++;
 658         }
 659
 660 finally_1:
 661         g_free (caseless_haystack);
 662
 663         return ret;
 664 }
 665
 666 static gboolean
 667 g_utf8_caselessnmatch (const char *s1, const char *s2,
 668                        gssize n1, gssize n2)
 669 {
 670         gchar *casefold;
 671         gchar *normalized_s1;
 672         gchar *normalized_s2;
 673         gint len_s1;
 674         gint len_s2;
 675         gboolean ret = FALSE;
 676
 677         g_return_val_if_fail (s1 != NULL, FALSE);
 678         g_return_val_if_fail (s2 != NULL, FALSE);
 679         g_return_val_if_fail (n1 > 0, FALSE);
 680         g_return_val_if_fail (n2 > 0, FALSE);
 681
 682         casefold = g_utf8_casefold (s1, n1);
 683         normalized_s1 = g_utf8_normalize (casefold, -1, G_NORMALIZE_NFD);
 684         g_free (casefold);
 685
 686         casefold = g_utf8_casefold (s2, n2);
 687         normalized_s2 = g_utf8_normalize (casefold, -1, G_NORMALIZE_NFD);
 688         g_free (casefold);
 689
 690         len_s1 = strlen (normalized_s1);
 691         len_s2 = strlen (normalized_s2);
 692
 693         if (len_s1 < len_s2)
 694                 goto finally_2;
 695
 696         ret = (strncmp (normalized_s1, normalized_s2, len_s2) == 0);
 697
 698 finally_2:
 699         g_free (normalized_s1);
 700         g_free (normalized_s2);
 701
 702         return ret;
 703 }
 704
 705 static void
 706 forward_chars_with_skipping (GtkTextIter *iter,
 707                              gint         count,
 708                              gboolean     skip_invisible,
 709                              gboolean     skip_nontext,
 710                              gboolean     skip_decomp)
 711 {
 712         gint i;
 713
 714         g_return_if_fail (count >= 0);
 715
 716         i = count;
 717
 718         while (i > 0)
 719         {
 720                 gboolean ignored = FALSE;
 721
 722                 /* minimal workaround to avoid the infinite loop of bug #168247.
 723                  * It doesn't fix the problemjust the symptom...
 724                  */
 725                 if (gtk_text_iter_is_end (iter))
 726                         return;
 727
 728                 if (skip_nontext && gtk_text_iter_get_char (iter) == GTK_TEXT_UNKNOWN_CHAR)
 729                         ignored = TRUE;
 730
 731                 if (!ignored && skip_invisible &&
 732                     /* _gtk_text_btree_char_is_invisible (iter)*/ FALSE)
 733                         ignored = TRUE;
 734
 735                 if (!ignored && skip_decomp)
 736                 {
 737                         /* being UTF8 correct sucks; this accounts for extra
 738                            offsets coming from canonical decompositions of
 739                            UTF8 characters (e.g. accented characters) which
 740                            g_utf8_normalize () performs */
 741                         gchar *normal;
 742                         gchar buffer[6];
 743                         gint buffer_len;
 744
 745                         buffer_len = g_unichar_to_utf8 (gtk_text_iter_get_char (iter), buffer);
 746                         normal = g_utf8_normalize (buffer, buffer_len, G_NORMALIZE_NFD);
 747                         i -= (g_utf8_strlen (normal, -1) - 1);
 748                         g_free (normal);
 749                 }
 750
 751                 gtk_text_iter_forward_char (iter);
 752
 753                 if (!ignored)
 754                         --i;
 755         }
 756 }
 757
 758 static gboolean
 759 lines_match (const GtkTextIter *start,
 760              const gchar      **lines,
 761              gboolean           visible_only,
 762              gboolean           slice,
 763              GtkTextIter       *match_start,
 764              GtkTextIter       *match_end)
 765 {
 766         GtkTextIter next;
 767         gchar *line_text;
 768         const gchar *found;
 769         gint offset;
 770
 771         if (*lines == NULL || **lines == '\0')
 772         {
 773                 if (match_start)
 774                         *match_start = *start;
 775                 if (match_end)
 776                         *match_end = *start;
 777                 return TRUE;
 778         }
 779
 780         next = *start;
 781         gtk_text_iter_forward_line (&next);
 782
 783         /* No more text in buffer, but *lines is nonempty */
 784         if (gtk_text_iter_equal (start, &next))
 785                 return FALSE;
 786
 787         if (slice)
 788         {
 789                 if (visible_only)
 790                         line_text = gtk_text_iter_get_visible_slice (start, &next);
 791                 else
 792                         line_text = gtk_text_iter_get_slice (start, &next);
 793         }
 794         else
 795         {
 796                 if (visible_only)
 797                         line_text = gtk_text_iter_get_visible_text (start, &next);
 798                 else
 799                         line_text = gtk_text_iter_get_text (start, &next);
 800         }
 801
 802         if (match_start) /* if this is the first line we're matching */
 803         {
 804                 found = g_utf8_strcasestr (line_text, *lines);
 805         }
 806         else
 807         {
 808                 /* If it's not the first line, we have to match from the
 809                  * start of the line.
 810                  */
 811                 if (g_utf8_caselessnmatch (line_text, *lines, strlen (line_text),
 812                                            strlen (*lines)))
 813                         found = line_text;
 814                 else
 815                         found = NULL;
 816         }
 817
 818         if (found == NULL)
 819         {
 820                 g_free (line_text);
 821                 return FALSE;
 822         }
 823
 824         /* Get offset to start of search string */
 825         offset = g_utf8_strlen (line_text, found - line_text);
 826
 827         next = *start;
 828
 829         /* If match start needs to be returned, set it to the
 830          * start of the search string.
 831          */
 832         forward_chars_with_skipping (&next, offset, visible_only, !slice, FALSE);
 833         if (match_start)
 834         {
 835                 *match_start = next;
 836         }
 837
 838         /* Go to end of search string */
 839         forward_chars_with_skipping (&next, g_utf8_strlen (*lines, -1), visible_only, !slice, TRUE);
 840
 841         g_free (line_text);
 842
 843         ++lines;
 844
 845         if (match_end)
 846                 *match_end = next;
 847
 848         /* pass NULL for match_start, since we don't need to find the
 849          * start again.
 850          */
 851         return lines_match (&next, lines, visible_only, slice, NULL, match_end);
 852 }
 853
 854 /* strsplit () that retains the delimiter as part of the string. */
 855 static gchar **
 856 strbreakup (const char *string,
 857             const char *delimiter,
 858             gint        max_tokens)
 859 {
 860         GSList *string_list = NULL, *slist;
 861         gchar **str_array, *s, *casefold, *new_string;
 862         guint i, n = 1;
 863
 864         g_return_val_if_fail (string != NULL, NULL);
 865         g_return_val_if_fail (delimiter != NULL, NULL);
 866
 867         if (max_tokens < 1)
 868                 max_tokens = G_MAXINT;
 869
 870         s = strstr (string, delimiter);
 871         if (s)
 872         {
 873                 guint delimiter_len = strlen (delimiter);
 874
 875                 do
 876                 {
 877                         guint len;
 878
 879                         len = s - string + delimiter_len;
 880                         new_string = g_new (gchar, len + 1);
 881                         strncpy (new_string, string, len);
 882                         new_string[len] = 0;
 883                         casefold = g_utf8_casefold (new_string, -1);
 884                         g_free (new_string);
 885                         new_string = g_utf8_normalize (casefold, -1, G_NORMALIZE_NFD);
 886                         g_free (casefold);
 887                         string_list = g_slist_prepend (string_list, new_string);
 888                         n++;
 889                         string = s + delimiter_len;
 890                         s = strstr (string, delimiter);
 891                 } while (--max_tokens && s);
 892         }
 893
 894         if (*string)
 895         {
 896                 n++;
 897                 casefold = g_utf8_casefold (string, -1);
 898                 new_string = g_utf8_normalize (casefold, -1, G_NORMALIZE_NFD);
 899                 g_free (casefold);
 900                 string_list = g_slist_prepend (string_list, new_string);
 901         }
 902
 903         str_array = g_new (gchar*, n);
 904
 905         i = n - 1;
 906
 907         str_array[i--] = NULL;
 908         for (slist = string_list; slist; slist = slist->next)
 909                 str_array[i--] = slist->data;
 910
 911         g_slist_free (string_list);
 912
 913         return str_array;
 914 }
 915
 916 gboolean
 917 empathy_text_iter_forward_search (const GtkTextIter   *iter,
 918                                  const gchar         *str,
 919                                  GtkTextIter         *match_start,
 920                                  GtkTextIter         *match_end,
 921                                  const GtkTextIter   *limit)
 922 {
 923         gchar **lines = NULL;
 924         GtkTextIter match;
 925         gboolean retval = FALSE;
 926         GtkTextIter search;
 927         gboolean visible_only;
 928         gboolean slice;
 929
 930         g_return_val_if_fail (iter != NULL, FALSE);
 931         g_return_val_if_fail (str != NULL, FALSE);
 932
 933         if (limit && gtk_text_iter_compare (iter, limit) >= 0)
 934                 return FALSE;
 935
 936         if (*str == '\0') {
 937                 /* If we can move one char, return the empty string there */
 938                 match = *iter;
 939
 940                 if (gtk_text_iter_forward_char (&match)) {
 941                         if (limit && gtk_text_iter_equal (&match, limit)) {
 942                                 return FALSE;
 943                         }
 944
 945                         if (match_start) {
 946                                 *match_start = match;
 947                         }
 948                         if (match_end) {
 949                                 *match_end = match;
 950                         }
 951                         return TRUE;
 952                 } else {
 953                         return FALSE;
 954                 }
 955         }
 956
 957         visible_only = TRUE;
 958         slice = FALSE;
 959
 960         /* locate all lines */
 961         lines = strbreakup (str, "\n", -1);
 962
 963         search = *iter;
 964
 965         do {
 966                 /* This loop has an inefficient worst-case, where
 967                  * gtk_text_iter_get_text () is called repeatedly on
 968                  * a single line.
 969                  */
 970                 GtkTextIter end;
 971
 972                 if (limit && gtk_text_iter_compare (&search, limit) >= 0) {
 973                         break;
 974                 }
 975
 976                 if (lines_match (&search, (const gchar**)lines,
 977                                  visible_only, slice, &match, &end)) {
 978                         if (limit == NULL ||
 979                             (limit && gtk_text_iter_compare (&end, limit) <= 0)) {
 980                                 retval = TRUE;
 981
 982                                 if (match_start) {
 983                                         *match_start = match;
 984                                 }
 985                                 if (match_end) {
 986                                         *match_end = end;
 987                                 }
 988                         }
 989                         break;
 990                 }
 991         } while (gtk_text_iter_forward_line (&search));
 992
 993         g_strfreev ((gchar **) lines);
 994
 995         return retval;
 996 }
 997
 998 static const gchar *
 999 g_utf8_strrcasestr (const gchar *haystack, const gchar *needle)
1000 {
1001         gsize needle_len;
1002         gsize haystack_len;
1003         const gchar *ret = NULL;
1004         gchar *p;
1005         gchar *casefold;
1006         gchar *caseless_haystack;
1007         gint i;
1008
1009         g_return_val_if_fail (haystack != NULL, NULL);
1010         g_return_val_if_fail (needle != NULL, NULL);
1011
1012         casefold = g_utf8_casefold (haystack, -1);
1013         caseless_haystack = g_utf8_normalize (casefold, -1, G_NORMALIZE_NFD);
1014         g_free (casefold);
1015
1016         needle_len = g_utf8_strlen (needle, -1);
1017         haystack_len = g_utf8_strlen (caseless_haystack, -1);
1018
1019         if (needle_len == 0)
1020         {
1021                 ret = (gchar *) haystack;
1022                 goto finally_1;
1023         }
1024
1025         if (haystack_len < needle_len)
1026         {
1027                 ret = NULL;
1028                 goto finally_1;
1029         }
1030
1031         i = haystack_len - needle_len;
1032         p = g_utf8_offset_to_pointer (caseless_haystack, i);
1033         needle_len = strlen (needle);
1034
1035         while (p >= caseless_haystack)
1036         {
1037                 if (strncmp (p, needle, needle_len) == 0)
1038                 {
1039                         ret = pointer_from_offset_skipping_decomp (haystack, i);
1040                         goto finally_1;
1041                 }
1042
1043                 p = g_utf8_prev_char (p);
1044                 i--;
1045         }
1046
1047 finally_1:
1048         g_free (caseless_haystack);
1049
1050         return ret;
1051 }
1052
1053 static gboolean
1054 backward_lines_match (const GtkTextIter *start,
1055                       const gchar      **lines,
1056                       gboolean           visible_only,
1057                       gboolean           slice,
1058                       GtkTextIter       *match_start,
1059                       GtkTextIter       *match_end)
1060 {
1061         GtkTextIter line, next;
1062         gchar *line_text;
1063         const gchar *found;
1064         gint offset;
1065
1066         if (*lines == NULL || **lines == '\0')
1067         {
1068                 if (match_start)
1069                         *match_start = *start;
1070                 if (match_end)
1071                         *match_end = *start;
1072                 return TRUE;
1073         }
1074
1075         line = next = *start;
1076         if (gtk_text_iter_get_line_offset (&next) == 0)
1077         {
1078                 if (!gtk_text_iter_backward_line (&next))
1079                         return FALSE;
1080         }
1081         else
1082                 gtk_text_iter_set_line_offset (&next, 0);
1083
1084         if (slice)
1085         {
1086                 if (visible_only)
1087                         line_text = gtk_text_iter_get_visible_slice (&next, &line);
1088                 else
1089                         line_text = gtk_text_iter_get_slice (&next, &line);
1090         }
1091         else
1092         {
1093                 if (visible_only)
1094                         line_text = gtk_text_iter_get_visible_text (&next, &line);
1095                 else
1096                         line_text = gtk_text_iter_get_text (&next, &line);
1097         }
1098
1099         if (match_start) /* if this is the first line we're matching */
1100         {
1101                 found = g_utf8_strrcasestr (line_text, *lines);
1102         }
1103         else
1104         {
1105                 /* If it's not the first line, we have to match from the
1106                  * start of the line.
1107                  */
1108                 if (g_utf8_caselessnmatch (line_text, *lines, strlen (line_text),
1109                                            strlen (*lines)))
1110                         found = line_text;
1111                 else
1112                         found = NULL;
1113         }
1114
1115         if (found == NULL)
1116         {
1117                 g_free (line_text);
1118                 return FALSE;
1119         }
1120
1121         /* Get offset to start of search string */
1122         offset = g_utf8_strlen (line_text, found - line_text);
1123
1124         forward_chars_with_skipping (&next, offset, visible_only, !slice, FALSE);
1125
1126         /* If match start needs to be returned, set it to the
1127          * start of the search string.
1128          */
1129         if (match_start)
1130         {
1131                 *match_start = next;
1132         }
1133
1134         /* Go to end of search string */
1135         forward_chars_with_skipping (&next, g_utf8_strlen (*lines, -1), visible_only, !slice, TRUE);
1136
1137         g_free (line_text);
1138
1139         ++lines;
1140
1141         if (match_end)
1142                 *match_end = next;
1143
1144         /* try to match the rest of the lines forward, passing NULL
1145          * for match_start so lines_match will try to match the entire
1146          * line */
1147         return lines_match (&next, lines, visible_only,
1148                             slice, NULL, match_end);
1149 }
1150
1151 gboolean
1152 empathy_text_iter_backward_search (const GtkTextIter   *iter,
1153                                   const gchar         *str,
1154                                   GtkTextIter         *match_start,
1155                                   GtkTextIter         *match_end,
1156                                   const GtkTextIter   *limit)
1157 {
1158         gchar **lines = NULL;
1159         GtkTextIter match;
1160         gboolean retval = FALSE;
1161         GtkTextIter search;
1162         gboolean visible_only;
1163         gboolean slice;
1164
1165         g_return_val_if_fail (iter != NULL, FALSE);
1166         g_return_val_if_fail (str != NULL, FALSE);
1167
1168         if (limit && gtk_text_iter_compare (iter, limit) <= 0)
1169                 return FALSE;
1170
1171         if (*str == '\0')
1172         {
1173                 /* If we can move one char, return the empty string there */
1174                 match = *iter;
1175
1176                 if (gtk_text_iter_backward_char (&match))
1177                 {
1178                         if (limit && gtk_text_iter_equal (&match, limit))
1179                                 return FALSE;
1180
1181                         if (match_start)
1182                                 *match_start = match;
1183                         if (match_end)
1184                                 *match_end = match;
1185                         return TRUE;
1186                 }
1187                 else
1188                 {
1189                         return FALSE;
1190                 }
1191         }
1192
1193         visible_only = TRUE;
1194         slice = TRUE;
1195
1196         /* locate all lines */
1197         lines = strbreakup (str, "\n", -1);
1198
1199         search = *iter;
1200
1201         while (TRUE)
1202         {
1203                 /* This loop has an inefficient worst-case, where
1204                  * gtk_text_iter_get_text () is called repeatedly on
1205                  * a single line.
1206                  */
1207                 GtkTextIter end;
1208
1209                 if (limit && gtk_text_iter_compare (&search, limit) <= 0)
1210                         break;
1211
1212                 if (backward_lines_match (&search, (const gchar**)lines,
1213                                           visible_only, slice, &match, &end))
1214                 {
1215                         if (limit == NULL || (limit &&
1216                                               gtk_text_iter_compare (&end, limit) > 0))
1217                         {
1218                                 retval = TRUE;
1219
1220                                 if (match_start)
1221                                         *match_start = match;
1222                                 if (match_end)
1223                                         *match_end = end;
1224                         }
1225                         break;
1226                 }
1227
1228                 if (gtk_text_iter_get_line_offset (&search) == 0)
1229                 {
1230                         if (!gtk_text_iter_backward_line (&search))
1231                                 break;
1232                 }
1233                 else
1234                 {
1235                         gtk_text_iter_set_line_offset (&search, 0);
1236                 }
1237         }
1238
1239         g_strfreev ((gchar **) lines);
1240
1241         return retval;
1242 }
1243
1244 gboolean
1245 empathy_window_get_is_visible (GtkWindow *window)
1246 {
1247         GdkWindowState  state;
1248         GdkWindow      *gdk_window;
1249
1250         g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
1251
1252         gdk_window = gtk_widget_get_window (GTK_WIDGET (window));
1253         if (!gdk_window) {
1254                 return FALSE;
1255         }
1256
1257         state = gdk_window_get_state (gdk_window);
1258         if (state & (GDK_WINDOW_STATE_WITHDRAWN | GDK_WINDOW_STATE_ICONIFIED)) {
1259                 return FALSE;
1260         }
1261
1262         return TRUE;
1263 }
1264
1265 void
1266 empathy_window_iconify (GtkWindow *window, GtkStatusIcon *status_icon)
1267 {
1268         GdkRectangle  icon_location;
1269         gulong        data[4];
1270         Display      *dpy;
1271         GdkWindow    *gdk_window;
1272
1273         gtk_status_icon_get_geometry (status_icon, NULL, &icon_location, NULL);
1274         gdk_window = gtk_widget_get_window (GTK_WIDGET (window));
1275         dpy = gdk_x11_drawable_get_xdisplay (gdk_window);
1276
1277         data[0] = icon_location.x;
1278         data[1] = icon_location.y;
1279         data[2] = icon_location.width;
1280         data[3] = icon_location.height;
1281
1282         XChangeProperty (dpy,
1283                          GDK_WINDOW_XID (gdk_window),
1284                          gdk_x11_get_xatom_by_name_for_display (gdk_drawable_get_display (gdk_window),
1285                          "_NET_WM_ICON_GEOMETRY"),
1286                          XA_CARDINAL, 32, PropModeReplace,
1287                          (guchar *)&data, 4);
1288
1289         gtk_window_set_skip_taskbar_hint (window, TRUE);
1290         gtk_window_iconify (window);
1291 }
1292
1293 /* Takes care of moving the window to the current workspace. */
1294 void
1295 empathy_window_present (GtkWindow *window,
1296                         gboolean   steal_focus)
1297 {
1298         guint32 timestamp;
1299         GdkWindow *gdk_window;
1300
1301         g_return_if_fail (GTK_IS_WINDOW (window));
1302
1303         /* Move the window to the current workspace before trying to show it.
1304          * This is the behaviour people expect when clicking on the statusbar icon. */
1305         gdk_window = gtk_widget_get_window (GTK_WIDGET (window));
1306         if (gdk_window) {
1307                 gint x, y;
1308                 gint w, h;
1309
1310                 /* Has no effect if the WM has viewports, like compiz */
1311                 gdk_x11_window_move_to_current_desktop (gdk_window);
1312
1313                 /* If window is still off-screen, hide it to force it to
1314                  * reposition on the current workspace. */
1315                 gtk_window_get_position (window, &x, &y);
1316                 gtk_window_get_size (window, &w, &h);
1317                 if (!EMPATHY_RECT_IS_ON_SCREEN (x, y, w, h))
1318                         gtk_widget_hide (GTK_WIDGET (window));
1319         }
1320
1321         timestamp = gtk_get_current_event_time ();
1322         gtk_window_present_with_time (window, timestamp);
1323         gtk_window_set_skip_taskbar_hint (window, FALSE);
1324         gtk_window_deiconify (window);
1325 }
1326
1327 GtkWindow *
1328 empathy_get_toplevel_window (GtkWidget *widget)
1329 {
1330         GtkWidget *toplevel;
1331
1332         g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
1333
1334         toplevel = gtk_widget_get_toplevel (widget);
1335         if (GTK_IS_WINDOW (toplevel) &&
1336             gtk_widget_is_toplevel (toplevel)) {
1337                 return GTK_WINDOW (toplevel);
1338         }
1339
1340         return NULL;
1341 }
1342
1343 /** empathy_make_absolute_url_len:
1344  * @url: an url
1345  * @len: a length
1346  *
1347  * Same as #empathy_make_absolute_url but for a limited string length
1348  */
1349 gchar *
1350 empathy_make_absolute_url_len (const gchar *url,
1351                                guint len)
1352 {
1353         g_return_val_if_fail (url != NULL, NULL);
1354
1355         if (g_str_has_prefix (url, "ghelp:") ||
1356             g_str_has_prefix (url, "mailto:") ||
1357             strstr (url, ":/")) {
1358                 return g_strndup (url, len);
1359         }
1360
1361         if (strstr (url, "@")) {
1362                 return g_strdup_printf ("mailto:%.*s", len, url);
1363         }
1364
1365         return g_strdup_printf ("http://%.*s", len, url);
1366 }
1367
1368 /** empathy_make_absolute_url:
1369  * @url: an url
1370  *
1371  * The URL opening code can't handle schemeless strings, so we try to be
1372  * smart and add http if there is no scheme or doesn't look like a mail
1373  * address. This should work in most cases, and let us click on strings
1374  * like "www.gnome.org".
1375  *
1376  * Returns: a newly allocated url with proper mailto: or http:// prefix, use
1377  * g_free when your are done with it
1378  */
1379 gchar *
1380 empathy_make_absolute_url (const gchar *url)
1381 {
1382         return empathy_make_absolute_url_len (url, strlen (url));
1383 }
1384
1385 void
1386 empathy_url_show (GtkWidget *parent,
1387                   const char *url)
1388 {
1389         gchar  *real_url;
1390         GError *error = NULL;
1391
1392         g_return_if_fail (parent == NULL || GTK_IS_WIDGET (parent));
1393         g_return_if_fail (url != NULL);
1394
1395         real_url = empathy_make_absolute_url (url);
1396
1397         gtk_show_uri (parent ? gtk_widget_get_screen (parent) : NULL, real_url,
1398                       gtk_get_current_event_time (), &error);
1399
1400         if (error) {
1401                 GtkWidget *dialog;
1402
1403                 dialog = gtk_message_dialog_new (NULL, 0,
1404                                                  GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE,
1405                                                  _("Unable to open URI"));
1406                 gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
1407                                                           "%s", error->message);
1408
1409                 g_signal_connect (dialog, "response",
1410                                   G_CALLBACK (gtk_widget_destroy),
1411                                   NULL);
1412                 gtk_window_present (GTK_WINDOW (dialog));
1413
1414                 g_clear_error (&error);
1415         }
1416
1417         g_free (real_url);
1418 }
1419
1420 static void
1421 link_button_hook (GtkLinkButton *button,
1422                   const gchar *link,
1423                   gpointer user_data)
1424 {
1425         empathy_url_show (GTK_WIDGET (button), link);
1426 }
1427
1428 GtkWidget *
1429 empathy_link_button_new (const gchar *url,
1430                         const gchar *title)
1431 {
1432         static gboolean hook = FALSE;
1433
1434         if (!hook) {
1435                 hook = TRUE;
1436                 gtk_link_button_set_uri_hook (link_button_hook, NULL, NULL);
1437         }
1438
1439         return gtk_link_button_new_with_label (url, title);
1440 }
1441
1442 void
1443 empathy_toggle_button_set_state_quietly (GtkWidget *widget,
1444                                         GCallback  callback,
1445                                         gpointer   user_data,
1446                                         gboolean   active)
1447 {
1448         g_return_if_fail (GTK_IS_TOGGLE_BUTTON (widget));
1449
1450         g_signal_handlers_block_by_func (widget, callback, user_data);
1451         g_object_set (widget, "active", active, NULL);
1452         g_signal_handlers_unblock_by_func (widget, callback, user_data);
1453 }
1454
1455 static void
1456 file_manager_send_file_response_cb (GtkDialog      *widget,
1457                                     gint            response_id,
1458                                     EmpathyContact *contact)
1459 {
1460         EmpathyFTFactory *factory;
1461         GFile *file;
1462         gchar *uri;
1463         GtkRecentManager *manager;
1464
1465         if (response_id == GTK_RESPONSE_OK) {
1466                 file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (widget));
1467                 uri = g_file_get_uri (file);
1468
1469                 factory = empathy_ft_factory_dup_singleton ();
1470
1471                 empathy_ft_factory_new_transfer_outgoing (factory, contact,
1472                                                           file);
1473
1474                 manager = gtk_recent_manager_get_default ();
1475                 gtk_recent_manager_add_item (manager, uri);
1476
1477                 g_free (uri);
1478                 g_object_unref (factory);
1479                 g_object_unref (file);
1480         }
1481
1482         gtk_widget_destroy (GTK_WIDGET (widget));
1483 }
1484
1485 void
1486 empathy_send_file_with_file_chooser (EmpathyContact *contact)
1487 {
1488         GtkWidget               *widget;
1489         GtkWidget               *button;
1490
1491         g_return_if_fail (EMPATHY_IS_CONTACT (contact));
1492
1493         DEBUG ("Creating selection file chooser");
1494
1495         widget = gtk_file_chooser_dialog_new (_("Select a file"),
1496                                               NULL,
1497                                               GTK_FILE_CHOOSER_ACTION_OPEN,
1498                                               GTK_STOCK_CANCEL,
1499                                               GTK_RESPONSE_CANCEL,
1500                                               NULL);
1501
1502         /* send button */
1503         button = gtk_button_new_with_mnemonic (_("_Send"));
1504         gtk_button_set_image (GTK_BUTTON (button),
1505                 gtk_image_new_from_icon_name (EMPATHY_IMAGE_DOCUMENT_SEND,
1506                                               GTK_ICON_SIZE_BUTTON));
1507         gtk_widget_show (button);
1508         gtk_dialog_add_action_widget (GTK_DIALOG (widget), button,
1509                                       GTK_RESPONSE_OK);
1510         gtk_widget_set_can_default (button, TRUE);
1511         gtk_dialog_set_default_response (GTK_DIALOG (widget),
1512                                          GTK_RESPONSE_OK);
1513
1514         gtk_file_chooser_set_local_only (GTK_FILE_CHOOSER (widget), FALSE);
1515
1516         g_signal_connect (widget, "response",
1517                           G_CALLBACK (file_manager_send_file_response_cb),
1518                           contact);
1519
1520         gtk_widget_show (widget);
1521 }
1522
1523 static void
1524 file_manager_receive_file_response_cb (GtkDialog *dialog,
1525                                        GtkResponseType response,
1526                                        EmpathyFTHandler *handler)
1527 {
1528         EmpathyFTFactory *factory;
1529         GFile *file;
1530
1531         if (response == GTK_RESPONSE_OK) {
1532                 factory = empathy_ft_factory_dup_singleton ();
1533                 file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
1534
1535                 empathy_ft_factory_set_destination_for_incoming_handler
1536                         (factory, handler, file);
1537
1538                 g_object_unref (factory);
1539                 g_object_unref (file);
1540         } else {
1541                 /* unref the handler, as we dismissed the file chooser,
1542                  * and refused the transfer.
1543                  */
1544                 g_object_unref (handler);
1545         }
1546
1547         gtk_widget_destroy (GTK_WIDGET (dialog));
1548 }
1549
1550 void
1551 empathy_receive_file_with_file_chooser (EmpathyFTHandler *handler)
1552 {
1553         GtkWidget *widget;
1554
1555         widget = gtk_file_chooser_dialog_new (_("Select a destination"),
1556                                               NULL,
1557                                               GTK_FILE_CHOOSER_ACTION_SAVE,
1558                                               GTK_STOCK_CANCEL,
1559                                               GTK_RESPONSE_CANCEL,
1560                                               GTK_STOCK_SAVE,
1561                                               GTK_RESPONSE_OK,
1562                                               NULL);
1563         gtk_file_chooser_set_current_name (GTK_FILE_CHOOSER (widget),
1564                 empathy_ft_handler_get_filename (handler));
1565         gtk_file_chooser_set_do_overwrite_confirmation
1566                 (GTK_FILE_CHOOSER (widget), TRUE);
1567
1568         g_signal_connect (widget, "response",
1569                 G_CALLBACK (file_manager_receive_file_response_cb), handler);
1570
1571         gtk_widget_show (widget);
1572 }
1573
1574 void
1575 empathy_string_parser_substr (GString *string,
1576                               const gchar *text,
1577                               gssize len,
1578                               EmpathyStringParser *parsers)
1579 {
1580         if (parsers != NULL && parsers[0].match_func != NULL) {
1581                 parsers[0].match_func (string, text, len,
1582                         parsers[0].replace_func, parsers + 1);
1583         } else {
1584                 g_string_append_len (string, text, len);
1585         }
1586 }
1587
1588 void
1589 empathy_string_match_link (GString *string,
1590                            const gchar *text,
1591                            gssize len,
1592                            EmpathyStringReplace replace_func,
1593                            EmpathyStringParser *sub_parsers)
1594 {
1595         GRegex     *uri_regex;
1596         GMatchInfo *match_info;
1597         gboolean    match;
1598         gint        last = 0;
1599
1600         uri_regex = empathy_uri_regex_dup_singleton ();
1601         match = g_regex_match_full (uri_regex, text, len, 0, 0, &match_info, NULL);
1602         if (match) {
1603                 gint s = 0, e = 0;
1604
1605                 do {
1606                         g_match_info_fetch_pos (match_info, 0, &s, &e);
1607
1608                         if (s > last) {
1609                                 /* Append the text between last link (or the
1610                                  * start of the message) and this link */
1611                                 empathy_string_parser_substr (string, text + last,
1612                                                               s - last,
1613                                                               sub_parsers);
1614                         }
1615
1616                         replace_func (string, text + s, e - s, NULL);
1617
1618                         last = e;
1619                 } while (g_match_info_next (match_info, NULL));
1620         }
1621
1622         empathy_string_parser_substr (string, text + last, len - last, sub_parsers);
1623
1624         g_match_info_free (match_info);
1625         g_regex_unref (uri_regex);
1626 }
1627
1628 void
1629 empathy_string_match_smiley (GString *string,
1630                              const gchar *text,
1631                              gssize len,
1632                              EmpathyStringReplace replace_func,
1633                              EmpathyStringParser *sub_parsers)
1634 {
1635         guint last = 0;
1636         EmpathySmileyManager *smiley_manager;
1637         GSList *hits, *l;
1638
1639         smiley_manager = empathy_smiley_manager_dup_singleton ();
1640         hits = empathy_smiley_manager_parse_len (smiley_manager, text, len);
1641
1642         for (l = hits; l; l = l->next) {
1643                 EmpathySmileyHit *hit = l->data;
1644
1645                 if (hit->start > last) {
1646                         /* Append the text between last smiley (or the
1647                          * start of the message) and this smiley */
1648                         empathy_string_parser_substr (string, text + last,
1649                                                       hit->start - last,
1650                                                       sub_parsers);
1651                 }
1652
1653                 replace_func (string,
1654                               text + hit->start, hit->end - hit->start,
1655                               hit);
1656
1657                 last = hit->end;
1658
1659                 empathy_smiley_hit_free (hit);
1660         }
1661         g_slist_free (hits);
1662         g_object_unref (smiley_manager);
1663
1664         empathy_string_parser_substr (string, text + last, len - last, sub_parsers);
1665 }
1666
1667 void
1668 empathy_string_match_escape (GString *string,
1669                              const gchar *text,
1670                              gssize len,
1671                              EmpathyStringReplace replace_func,
1672                              EmpathyStringParser *sub_parsers)
1673 {
1674         gchar *escaped;
1675
1676         escaped = g_markup_escape_text (text, len);
1677         g_string_append (string, escaped);
1678         g_free (escaped);
1679 }
1680