libempathy-gtk/empathy-chat-text-view.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) 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., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, 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  */
  26
  27 #include "config.h"
  28
  29 #include <sys/types.h>
  30 #include <string.h>
  31 #include <time.h>
  32
  33 #include <glib/gi18n-lib.h>
  34 #include <gtk/gtkbutton.h>
  35 #include <gtk/gtkimage.h>
  36 #include <gtk/gtkmenu.h>
  37 #include <gtk/gtkmenuitem.h>
  38 #include <gtk/gtkimagemenuitem.h>
  39 #include <gtk/gtkstock.h>
  40 #include <gtk/gtkscrolledwindow.h>
  41 #include <gtk/gtksizegroup.h>
  42 #include <glade/glade.h>
  43
  44 #include <telepathy-glib/util.h>
  45 #include <libmissioncontrol/mc-account.h>
  46
  47 #include <libempathy/empathy-utils.h>
  48
  49 #include "empathy-chat-text-view.h"
  50 #include "empathy-chat.h"
  51 #include "empathy-conf.h"
  52 #include "empathy-ui-utils.h"
  53 #include "empathy-smiley-manager.h"
  54
  55 #define DEBUG_FLAG EMPATHY_DEBUG_CHAT
  56 #include <libempathy/empathy-debug.h>
  57
  58 /* Number of seconds between timestamps when using normal mode, 5 minutes. */
  59 #define TIMESTAMP_INTERVAL 300
  60
  61 #define MAX_LINES 800
  62 #define MAX_SCROLL_TIME 0.4 /* seconds */
  63 #define SCROLL_DELAY 33     /* milliseconds */
  64
  65 #define SCHEMES "(https?|s?ftps?|nntp|news|javascript|about|ghelp|apt|telnet|"\
  66                 "file|webcal|mailto)"
  67 #define BODY "([^\\ \\n]+)"
  68 #define END_BODY "([^\\ \\n]*[^,;\?><()\\ \"\\.\\n])"
  69 #define URI_REGEX "("SCHEMES"://"END_BODY")" \
  70                   "|((mailto:)?"BODY"@"BODY"\\."END_BODY")"\
  71                   "|((www|ftp)\\."END_BODY")"
  72 static GRegex *uri_regex = NULL;
  73
  74 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyChatTextView)
  75
  76 typedef struct {
  77         GtkTextBuffer        *buffer;
  78         guint                 scroll_timeout;
  79         GTimer               *scroll_time;
  80         GtkTextMark          *find_mark_previous;
  81         GtkTextMark          *find_mark_next;
  82         gboolean              find_wrapped;
  83         gboolean              find_last_direction;
  84         EmpathyContact       *last_contact;
  85         time_t                last_timestamp;
  86         gboolean              allow_scrolling;
  87         guint                 notify_system_fonts_id;
  88         EmpathySmileyManager *smiley_manager;
  89         gboolean              only_if_date;
  90 } EmpathyChatTextViewPriv;
  91
  92 static void chat_text_view_iface_init (EmpathyChatViewIface *iface);
  93
  94 G_DEFINE_TYPE_WITH_CODE (EmpathyChatTextView, empathy_chat_text_view,
  95                          GTK_TYPE_TEXT_VIEW,
  96                          G_IMPLEMENT_INTERFACE (EMPATHY_TYPE_CHAT_VIEW,
  97                                                 chat_text_view_iface_init));
  98
  99 enum {
 100         PROP_0,
 101         PROP_LAST_CONTACT,
 102         PROP_ONLY_IF_DATE
 103 };
 104
 105 static gboolean
 106 chat_text_view_url_event_cb (GtkTextTag          *tag,
 107                              GObject             *object,
 108                              GdkEvent            *event,
 109                              GtkTextIter         *iter,
 110                              EmpathyChatTextView *view)
 111 {
 112         EmpathyChatTextViewPriv *priv;
 113         GtkTextIter              start, end;
 114         gchar                   *str;
 115
 116         priv = GET_PRIV (view);
 117
 118         /* If the link is being selected, don't do anything. */
 119         gtk_text_buffer_get_selection_bounds (priv->buffer, &start, &end);
 120         if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end)) {
 121                 return FALSE;
 122         }
 123
 124         if (event->type == GDK_BUTTON_RELEASE && event->button.button == 1) {
 125                 start = end = *iter;
 126
 127                 if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 128                     gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 129                             str = gtk_text_buffer_get_text (priv->buffer,
 130                                                             &start,
 131                                                             &end,
 132                                                             FALSE);
 133
 134                             empathy_url_show (GTK_WIDGET (view), str);
 135                             g_free (str);
 136                     }
 137         }
 138
 139         return FALSE;
 140 }
 141
 142 static gboolean
 143 chat_text_view_event_cb (EmpathyChatTextView *view,
 144                          GdkEventMotion      *event,
 145                          GtkTextTag          *tag)
 146 {
 147         static GdkCursor  *hand = NULL;
 148         static GdkCursor  *beam = NULL;
 149         GtkTextWindowType  type;
 150         GtkTextIter        iter;
 151         GdkWindow         *win;
 152         gint               x, y, buf_x, buf_y;
 153
 154         type = gtk_text_view_get_window_type (GTK_TEXT_VIEW (view),
 155                                               event->window);
 156
 157         if (type != GTK_TEXT_WINDOW_TEXT) {
 158                 return FALSE;
 159         }
 160
 161         /* Get where the pointer really is. */
 162         win = gtk_text_view_get_window (GTK_TEXT_VIEW (view), type);
 163         if (!win) {
 164                 return FALSE;
 165         }
 166
 167         gdk_window_get_pointer (win, &x, &y, NULL);
 168
 169         /* Get the iter where the cursor is at */
 170         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view), type,
 171                                                x, y,
 172                                                &buf_x, &buf_y);
 173
 174         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view),
 175                                             &iter,
 176                                             buf_x, buf_y);
 177
 178         if (gtk_text_iter_has_tag (&iter, tag)) {
 179                 if (!hand) {
 180                         hand = gdk_cursor_new (GDK_HAND2);
 181                         beam = gdk_cursor_new (GDK_XTERM);
 182                 }
 183                 gdk_window_set_cursor (win, hand);
 184         } else {
 185                 if (!beam) {
 186                         beam = gdk_cursor_new (GDK_XTERM);
 187                 }
 188                 gdk_window_set_cursor (win, beam);
 189         }
 190
 191         return FALSE;
 192 }
 193
 194 static void
 195 chat_text_view_create_tags (EmpathyChatTextView *view)
 196 {
 197         EmpathyChatTextViewPriv *priv = GET_PRIV (view);
 198         GtkTextTag              *tag;
 199
 200         gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_CUT, NULL);
 201         gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT, NULL);
 202         gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_SPACING, NULL);
 203         gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_TIME, NULL);
 204         gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_ACTION, NULL);
 205         gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_BODY, NULL);
 206         gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_EVENT, NULL);
 207
 208         tag = gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_LINK, NULL);
 209         g_signal_connect (tag, "event",
 210                           G_CALLBACK (chat_text_view_url_event_cb),
 211                           view);
 212
 213         g_signal_connect (view, "motion-notify-event",
 214                           G_CALLBACK (chat_text_view_event_cb),
 215                           tag);
 216 }
 217
 218 static void
 219 chat_text_view_system_font_update (EmpathyChatTextView *view)
 220 {
 221         PangoFontDescription *font_description = NULL;
 222         gchar                *font_name;
 223
 224         if (empathy_conf_get_string (empathy_conf_get (),
 225                                      "/desktop/gnome/interface/document_font_name",
 226                                      &font_name) && font_name) {
 227                                              font_description = pango_font_description_from_string (font_name);
 228                                              g_free (font_name);
 229                                      } else {
 230                                              font_description = NULL;
 231                                      }
 232
 233         gtk_widget_modify_font (GTK_WIDGET (view), font_description);
 234
 235         if (font_description) {
 236                 pango_font_description_free (font_description);
 237         }
 238 }
 239
 240 static void
 241 chat_text_view_notify_system_font_cb (EmpathyConf *conf,
 242                                       const gchar *key,
 243                                       gpointer     user_data)
 244 {
 245         EmpathyChatTextView *view = user_data;
 246
 247         chat_text_view_system_font_update (view);
 248 }
 249
 250 static void
 251 chat_text_view_clear_view_cb (GtkMenuItem *menuitem, EmpathyChatTextView *view)
 252 {
 253         empathy_chat_view_clear (EMPATHY_CHAT_VIEW (view));
 254 }
 255
 256 static void
 257 chat_text_view_open_address_cb (GtkMenuItem *menuitem, const gchar *url)
 258 {
 259         empathy_url_show (GTK_WIDGET (menuitem), url);
 260 }
 261
 262 static void
 263 chat_text_view_copy_address_cb (GtkMenuItem *menuitem, const gchar *url)
 264 {
 265         GtkClipboard *clipboard;
 266
 267         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
 268         gtk_clipboard_set_text (clipboard, url, -1);
 269
 270         clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
 271         gtk_clipboard_set_text (clipboard, url, -1);
 272 }
 273
 274 static void
 275 chat_text_view_populate_popup (EmpathyChatTextView *view,
 276                           GtkMenu        *menu,
 277                           gpointer        user_data)
 278 {
 279         EmpathyChatTextViewPriv *priv;
 280         GtkTextTagTable    *table;
 281         GtkTextTag         *tag;
 282         gint                x, y;
 283         GtkTextIter         iter, start, end;
 284         GtkWidget          *item;
 285         gchar              *str = NULL;
 286
 287         priv = GET_PRIV (view);
 288
 289         /* Clear menu item */
 290         if (gtk_text_buffer_get_char_count (priv->buffer) > 0) {
 291                 item = gtk_menu_item_new ();
 292                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 293                 gtk_widget_show (item);
 294
 295                 item = gtk_image_menu_item_new_from_stock (GTK_STOCK_CLEAR, NULL);
 296                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 297                 gtk_widget_show (item);
 298
 299                 g_signal_connect (item,
 300                                   "activate",
 301                                   G_CALLBACK (chat_text_view_clear_view_cb),
 302                                   view);
 303         }
 304
 305         /* Link context menu items */
 306         table = gtk_text_buffer_get_tag_table (priv->buffer);
 307         tag = gtk_text_tag_table_lookup (table, EMPATHY_CHAT_TEXT_VIEW_TAG_LINK);
 308
 309         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
 310
 311         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
 312                                                GTK_TEXT_WINDOW_WIDGET,
 313                                                x, y,
 314                                                &x, &y);
 315
 316         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
 317
 318         start = end = iter;
 319
 320         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 321             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 322                     str = gtk_text_buffer_get_text (priv->buffer,
 323                                                     &start, &end, FALSE);
 324             }
 325
 326         if (EMP_STR_EMPTY (str)) {
 327                 g_free (str);
 328                 return;
 329         }
 330
 331         /* NOTE: Set data just to get the string freed when not needed. */
 332         g_object_set_data_full (G_OBJECT (menu),
 333                                 "url", str,
 334                                 (GDestroyNotify) g_free);
 335
 336         item = gtk_menu_item_new ();
 337         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 338         gtk_widget_show (item);
 339
 340         item = gtk_menu_item_new_with_mnemonic (_("_Copy Link Address"));
 341         g_signal_connect (item,
 342                           "activate",
 343                           G_CALLBACK (chat_text_view_copy_address_cb),
 344                           str);
 345         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 346         gtk_widget_show (item);
 347
 348         item = gtk_menu_item_new_with_mnemonic (_("_Open Link"));
 349         g_signal_connect (item,
 350                           "activate",
 351                           G_CALLBACK (chat_text_view_open_address_cb),
 352                           str);
 353         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 354         gtk_widget_show (item);
 355 }
 356
 357 static gboolean
 358 chat_text_view_is_scrolled_down (EmpathyChatTextView *view)
 359 {
 360         GtkWidget *sw;
 361
 362         sw = gtk_widget_get_parent (GTK_WIDGET (view));
 363         if (GTK_IS_SCROLLED_WINDOW (sw)) {
 364                 GtkAdjustment *vadj;
 365
 366                 vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (sw));
 367
 368                 if (vadj->value + vadj->page_size / 2 < vadj->upper - vadj->page_size) {
 369                         return FALSE;
 370                 }
 371         }
 372
 373         return TRUE;
 374 }
 375
 376 static void
 377 chat_text_view_maybe_trim_buffer (EmpathyChatTextView *view)
 378 {
 379         EmpathyChatTextViewPriv *priv;
 380         GtkTextIter         top, bottom;
 381         gint                line;
 382         gint                remove;
 383         GtkTextTagTable    *table;
 384         GtkTextTag         *tag;
 385
 386         priv = GET_PRIV (view);
 387
 388         gtk_text_buffer_get_end_iter (priv->buffer, &bottom);
 389         line = gtk_text_iter_get_line (&bottom);
 390         if (line < MAX_LINES) {
 391                 return;
 392         }
 393
 394         remove = line - MAX_LINES;
 395         gtk_text_buffer_get_start_iter (priv->buffer, &top);
 396
 397         bottom = top;
 398         if (!gtk_text_iter_forward_lines (&bottom, remove)) {
 399                 return;
 400         }
 401
 402         /* Track backwords to a place where we can safely cut, we don't do it in
 403           * the middle of a tag.
 404           */
 405         table = gtk_text_buffer_get_tag_table (priv->buffer);
 406         tag = gtk_text_tag_table_lookup (table, EMPATHY_CHAT_TEXT_VIEW_TAG_CUT);
 407         if (!tag) {
 408                 return;
 409         }
 410
 411         if (!gtk_text_iter_forward_to_tag_toggle (&bottom, tag)) {
 412                 return;
 413         }
 414
 415         if (!gtk_text_iter_equal (&top, &bottom)) {
 416                 gtk_text_buffer_delete (priv->buffer, &top, &bottom);
 417         }
 418 }
 419
 420 static void
 421 chat_text_view_append_timestamp (EmpathyChatTextView *view,
 422                                  time_t               timestamp,
 423                                  gboolean             show_date)
 424 {
 425         EmpathyChatTextViewPriv *priv = GET_PRIV (view);
 426         GtkTextIter              iter;
 427         gchar                   *tmp;
 428         GString                 *str;
 429
 430         str = g_string_new ("- ");
 431
 432         /* Append date if needed */
 433         if (show_date) {
 434                 GDate *date;
 435                 gchar  buf[256];
 436
 437                 date = g_date_new ();
 438                 g_date_set_time_t (date, timestamp);
 439                 g_date_strftime (buf, 256, _("%A %B %d %Y"), date);
 440                 g_string_append (str, buf);
 441                 g_string_append (str, ", ");
 442                 g_date_free (date);
 443         }
 444
 445         /* Append time */
 446         tmp = empathy_time_to_string_local (timestamp, EMPATHY_TIME_FORMAT_DISPLAY_SHORT);
 447         g_string_append (str, tmp);
 448         g_free (tmp);
 449
 450         g_string_append (str, " -\n");
 451
 452         /* Insert the string in the buffer */
 453         empathy_chat_text_view_append_spacing (view);
 454         gtk_text_buffer_get_end_iter (priv->buffer, &iter);
 455         gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
 456                                                   &iter,
 457                                                   str->str, -1,
 458                                                   EMPATHY_CHAT_TEXT_VIEW_TAG_TIME,
 459                                                   NULL);
 460
 461         priv->last_timestamp = timestamp;
 462
 463         g_string_free (str, TRUE);
 464 }
 465
 466 static void
 467 chat_text_maybe_append_date_and_time (EmpathyChatTextView *view,
 468                                       time_t               timestamp)
 469 {
 470         EmpathyChatTextViewPriv *priv = GET_PRIV (view);
 471         GDate                   *date, *last_date;
 472         gboolean                 append_date = FALSE;
 473         gboolean                 append_time = FALSE;
 474
 475         /* Get the date from last message */
 476         last_date = g_date_new ();
 477         g_date_set_time_t (last_date, priv->last_timestamp);
 478
 479         /* Get the date of the message we are appending */
 480         date = g_date_new ();
 481         g_date_set_time_t (date, timestamp);
 482
 483         /* If last message was from another day we append date and time */
 484         if (g_date_compare (date, last_date) > 0) {
 485                 append_date = TRUE;
 486                 append_time = TRUE;
 487         }
 488
 489         g_date_free (last_date);
 490         g_date_free (date);
 491
 492         /* If last message is 'old' append the time */
 493         if (timestamp - priv->last_timestamp >= TIMESTAMP_INTERVAL) {
 494                 append_time = TRUE;
 495         }
 496
 497         if (append_date || (!priv->only_if_date && append_time)) {
 498                 chat_text_view_append_timestamp (view, timestamp, append_date);
 499         }
 500 }
 501
 502 static void
 503 chat_text_view_size_allocate (GtkWidget     *widget,
 504                               GtkAllocation *alloc)
 505 {
 506         gboolean down;
 507
 508         down = chat_text_view_is_scrolled_down (EMPATHY_CHAT_TEXT_VIEW (widget));
 509
 510         GTK_WIDGET_CLASS (empathy_chat_text_view_parent_class)->size_allocate (widget, alloc);
 511
 512         if (down) {
 513                 GtkAdjustment *adj;
 514
 515                 adj = GTK_TEXT_VIEW (widget)->vadjustment;
 516                 gtk_adjustment_set_value (adj, adj->upper - adj->page_size);
 517         }
 518 }
 519
 520 static gboolean
 521 chat_text_view_drag_motion (GtkWidget      *widget,
 522                             GdkDragContext *context,
 523                             gint            x,
 524                             gint            y,
 525                             guint           time)
 526 {
 527         /* Don't handle drag motion, since we don't want the view to scroll as
 528          * the result of dragging something across it. */
 529
 530         return FALSE;
 531 }
 532
 533 static void
 534 chat_text_view_get_property (GObject    *object,
 535                              guint       param_id,
 536                              GValue     *value,
 537                              GParamSpec *pspec)
 538 {
 539         EmpathyChatTextViewPriv *priv = GET_PRIV (object);
 540
 541         switch (param_id) {
 542         case PROP_LAST_CONTACT:
 543                 g_value_set_object (value, priv->last_contact);
 544                 break;
 545         case PROP_ONLY_IF_DATE:
 546                 g_value_set_boolean (value, priv->only_if_date);
 547                 break;
 548         default:
 549                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 550                 break;
 551         };
 552 }
 553
 554 static void
 555 chat_text_view_set_property (GObject      *object,
 556                              guint         param_id,
 557                              const GValue *value,
 558                              GParamSpec   *pspec)
 559 {
 560         EmpathyChatTextViewPriv *priv = GET_PRIV (object);
 561
 562         switch (param_id) {
 563         case PROP_ONLY_IF_DATE:
 564                 priv->only_if_date = g_value_get_boolean (value);
 565                 break;
 566         default:
 567                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 568                 break;
 569         };
 570 }
 571
 572 static void
 573 chat_text_view_finalize (GObject *object)
 574 {
 575         EmpathyChatTextView     *view;
 576         EmpathyChatTextViewPriv *priv;
 577
 578         view = EMPATHY_CHAT_TEXT_VIEW (object);
 579         priv = GET_PRIV (view);
 580
 581         DEBUG ("%p", object);
 582
 583         empathy_conf_notify_remove (empathy_conf_get (), priv->notify_system_fonts_id);
 584
 585         if (priv->last_contact) {
 586                 g_object_unref (priv->last_contact);
 587         }
 588         if (priv->scroll_time) {
 589                 g_timer_destroy (priv->scroll_time);
 590         }
 591         if (priv->scroll_timeout) {
 592                 g_source_remove (priv->scroll_timeout);
 593         }
 594
 595         G_OBJECT_CLASS (empathy_chat_text_view_parent_class)->finalize (object);
 596 }
 597
 598 static void
 599 empathy_chat_text_view_class_init (EmpathyChatTextViewClass *klass)
 600 {
 601         GObjectClass   *object_class = G_OBJECT_CLASS (klass);
 602         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 603
 604         object_class->finalize = chat_text_view_finalize;
 605         object_class->get_property = chat_text_view_get_property;
 606         object_class->set_property = chat_text_view_set_property;
 607
 608         widget_class->size_allocate = chat_text_view_size_allocate;
 609         widget_class->drag_motion = chat_text_view_drag_motion;
 610
 611         g_object_class_install_property (object_class,
 612                                          PROP_LAST_CONTACT,
 613                                          g_param_spec_object ("last-contact",
 614                                                               "Last contact",
 615                                                               "The sender of the last received message",
 616                                                               EMPATHY_TYPE_CONTACT,
 617                                                               G_PARAM_READABLE));
 618         g_object_class_install_property (object_class,
 619                                          PROP_ONLY_IF_DATE,
 620                                          g_param_spec_boolean ("only-if-date",
 621                                                               "Only if date",
 622                                                               "Display timestamp only if the date changes",
 623                                                               FALSE,
 624                                                               G_PARAM_READWRITE));
 625
 626
 627         g_type_class_add_private (object_class, sizeof (EmpathyChatTextViewPriv));
 628 }
 629
 630 static void
 631 empathy_chat_text_view_init (EmpathyChatTextView *view)
 632 {
 633         EmpathyChatTextViewPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (view,
 634                 EMPATHY_TYPE_CHAT_TEXT_VIEW, EmpathyChatTextViewPriv);
 635
 636         view->priv = priv;
 637         priv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 638         priv->last_timestamp = 0;
 639         priv->allow_scrolling = TRUE;
 640         priv->smiley_manager = empathy_smiley_manager_dup_singleton ();
 641
 642         g_object_set (view,
 643                       "wrap-mode", GTK_WRAP_WORD_CHAR,
 644                       "editable", FALSE,
 645                       "cursor-visible", FALSE,
 646                       NULL);
 647
 648         priv->notify_system_fonts_id =
 649                 empathy_conf_notify_add (empathy_conf_get (),
 650                                          "/desktop/gnome/interface/document_font_name",
 651                                          chat_text_view_notify_system_font_cb,
 652                                          view);
 653         chat_text_view_system_font_update (view);
 654         chat_text_view_create_tags (view);
 655
 656         g_signal_connect (view,
 657                           "populate-popup",
 658                           G_CALLBACK (chat_text_view_populate_popup),
 659                           NULL);
 660 }
 661
 662 /* Code stolen from pidgin/gtkimhtml.c */
 663 static gboolean
 664 chat_text_view_scroll_cb (EmpathyChatTextView *view)
 665 {
 666         EmpathyChatTextViewPriv *priv;
 667         GtkAdjustment      *adj;
 668         gdouble             max_val;
 669
 670         priv = GET_PRIV (view);
 671         adj = GTK_TEXT_VIEW (view)->vadjustment;
 672         max_val = adj->upper - adj->page_size;
 673
 674         g_return_val_if_fail (priv->scroll_time != NULL, FALSE);
 675
 676         if (g_timer_elapsed (priv->scroll_time, NULL) > MAX_SCROLL_TIME) {
 677                 /* time's up. jump to the end and kill the timer */
 678                 gtk_adjustment_set_value (adj, max_val);
 679                 g_timer_destroy (priv->scroll_time);
 680                 priv->scroll_time = NULL;
 681                 priv->scroll_timeout = 0;
 682                 return FALSE;
 683         }
 684
 685         /* scroll by 1/3rd the remaining distance */
 686         gtk_adjustment_set_value (adj, gtk_adjustment_get_value (adj) + ((max_val - gtk_adjustment_get_value (adj)) / 3));
 687         return TRUE;
 688 }
 689
 690 static void
 691 chat_text_view_scroll_down (EmpathyChatView *view)
 692 {
 693         EmpathyChatTextViewPriv *priv = GET_PRIV (view);
 694
 695         g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
 696
 697         if (!priv->allow_scrolling) {
 698                 return;
 699         }
 700
 701         DEBUG ("Scrolling down");
 702
 703         if (priv->scroll_time) {
 704                 g_timer_reset (priv->scroll_time);
 705         } else {
 706                 priv->scroll_time = g_timer_new();
 707         }
 708         if (!priv->scroll_timeout) {
 709                 priv->scroll_timeout = g_timeout_add (SCROLL_DELAY,
 710                                                       (GSourceFunc) chat_text_view_scroll_cb,
 711                                                       view);
 712         }
 713 }
 714
 715 static void
 716 chat_text_view_append_message (EmpathyChatView *view,
 717                                EmpathyMessage  *msg)
 718 {
 719         EmpathyChatTextView     *text_view = EMPATHY_CHAT_TEXT_VIEW (view);
 720         EmpathyChatTextViewPriv *priv = GET_PRIV (text_view);
 721         gboolean                 bottom;
 722         time_t                   timestamp;
 723
 724         g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
 725         g_return_if_fail (EMPATHY_IS_MESSAGE (msg));
 726
 727         if (!empathy_message_get_body (msg)) {
 728                 return;
 729         }
 730
 731         bottom = chat_text_view_is_scrolled_down (text_view);
 732
 733         chat_text_view_maybe_trim_buffer (EMPATHY_CHAT_TEXT_VIEW (view));
 734
 735         timestamp = empathy_message_get_timestamp (msg);
 736         chat_text_maybe_append_date_and_time (text_view, timestamp);
 737         if (EMPATHY_CHAT_TEXT_VIEW_GET_CLASS (view)->append_message) {
 738                 EMPATHY_CHAT_TEXT_VIEW_GET_CLASS (view)->append_message (text_view,
 739                                                                          msg);
 740         }
 741
 742         if (bottom) {
 743                 chat_text_view_scroll_down (view);
 744         }
 745
 746         if (priv->last_contact) {
 747                 g_object_unref (priv->last_contact);
 748         }
 749         priv->last_contact = g_object_ref (empathy_message_get_sender (msg));
 750         g_object_notify (G_OBJECT (view), "last-contact");
 751 }
 752
 753 static void
 754 chat_text_view_append_event (EmpathyChatView *view,
 755                              const gchar     *str)
 756 {
 757         EmpathyChatTextView     *text_view = EMPATHY_CHAT_TEXT_VIEW (view);
 758         EmpathyChatTextViewPriv *priv = GET_PRIV (text_view);
 759         gboolean                 bottom;
 760         GtkTextIter              iter;
 761         gchar                   *msg;
 762
 763
 764         g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
 765         g_return_if_fail (!EMP_STR_EMPTY (str));
 766
 767         bottom = chat_text_view_is_scrolled_down (text_view);
 768         chat_text_view_maybe_trim_buffer (EMPATHY_CHAT_TEXT_VIEW (view));
 769         chat_text_maybe_append_date_and_time (text_view,
 770                                               empathy_time_get_current ());
 771
 772         gtk_text_buffer_get_end_iter (priv->buffer, &iter);
 773         msg = g_strdup_printf (" - %s\n", str);
 774         gtk_text_buffer_insert_with_tags_by_name (priv->buffer, &iter,
 775                                                   msg, -1,
 776                                                   EMPATHY_CHAT_TEXT_VIEW_TAG_EVENT,
 777                                                   NULL);
 778         g_free (msg);
 779
 780         if (bottom) {
 781                 chat_text_view_scroll_down (view);
 782         }
 783
 784         if (priv->last_contact) {
 785                 g_object_unref (priv->last_contact);
 786                 priv->last_contact = NULL;
 787                 g_object_notify (G_OBJECT (view), "last-contact");
 788         }
 789 }
 790
 791 static void
 792 chat_text_view_scroll (EmpathyChatView *view,
 793                        gboolean         allow_scrolling)
 794 {
 795         EmpathyChatTextViewPriv *priv = GET_PRIV (view);
 796
 797         g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
 798
 799         DEBUG ("Scrolling %s", allow_scrolling ? "enabled" : "disabled");
 800
 801         priv->allow_scrolling = allow_scrolling;
 802         if (allow_scrolling) {
 803                 empathy_chat_view_scroll_down (view);
 804         }
 805 }
 806
 807 static gboolean
 808 chat_text_view_get_has_selection (EmpathyChatView *view)
 809 {
 810         GtkTextBuffer *buffer;
 811
 812         g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), FALSE);
 813
 814         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 815
 816         return gtk_text_buffer_get_has_selection (buffer);
 817 }
 818
 819 static void
 820 chat_text_view_clear (EmpathyChatView *view)
 821 {
 822         GtkTextBuffer      *buffer;
 823         EmpathyChatTextViewPriv *priv;
 824
 825         g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
 826
 827         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 828         gtk_text_buffer_set_text (buffer, "", -1);
 829
 830         /* We set these back to the initial values so we get
 831           * timestamps when clearing the window to know when
 832           * conversations start.
 833           */
 834         priv = GET_PRIV (view);
 835
 836         priv->last_timestamp = 0;
 837 }
 838
 839 static gboolean
 840 chat_text_view_find_previous (EmpathyChatView *view,
 841                                 const gchar     *search_criteria,
 842                                 gboolean         new_search)
 843 {
 844         EmpathyChatTextViewPriv *priv;
 845         GtkTextBuffer      *buffer;
 846         GtkTextIter         iter_at_mark;
 847         GtkTextIter         iter_match_start;
 848         GtkTextIter         iter_match_end;
 849         gboolean            found;
 850         gboolean            from_start = FALSE;
 851
 852         g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), FALSE);
 853         g_return_val_if_fail (search_criteria != NULL, FALSE);
 854
 855         priv = GET_PRIV (view);
 856
 857         buffer = priv->buffer;
 858
 859         if (EMP_STR_EMPTY (search_criteria)) {
 860                 if (priv->find_mark_previous) {
 861                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
 862
 863                         gtk_text_buffer_move_mark (buffer,
 864                                                    priv->find_mark_previous,
 865                                                    &iter_at_mark);
 866                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
 867                                                       priv->find_mark_previous,
 868                                                       0.0,
 869                                                       TRUE,
 870                                                       0.0,
 871                                                       0.0);
 872                         gtk_text_buffer_select_range (buffer,
 873                                                       &iter_at_mark,
 874                                                       &iter_at_mark);
 875                 }
 876
 877                 return FALSE;
 878         }
 879
 880         if (new_search) {
 881                 from_start = TRUE;
 882         }
 883
 884         if (priv->find_mark_previous) {
 885                 gtk_text_buffer_get_iter_at_mark (buffer,
 886                                                   &iter_at_mark,
 887                                                   priv->find_mark_previous);
 888         } else {
 889                 gtk_text_buffer_get_end_iter (buffer, &iter_at_mark);
 890                 from_start = TRUE;
 891         }
 892
 893         priv->find_last_direction = FALSE;
 894
 895         found = empathy_text_iter_backward_search (&iter_at_mark,
 896                                                    search_criteria,
 897                                                    &iter_match_start,
 898                                                    &iter_match_end,
 899                                                    NULL);
 900
 901         if (!found) {
 902                 gboolean result = FALSE;
 903
 904                 if (from_start) {
 905                         return result;
 906                 }
 907
 908                 /* Here we wrap around. */
 909                 if (!new_search && !priv->find_wrapped) {
 910                         priv->find_wrapped = TRUE;
 911                         result = chat_text_view_find_previous (view,
 912                                                                  search_criteria,
 913                                                                  FALSE);
 914                         priv->find_wrapped = FALSE;
 915                 }
 916
 917                 return result;
 918         }
 919
 920         /* Set new mark and show on screen */
 921         if (!priv->find_mark_previous) {
 922                 priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
 923                                                                         &iter_match_start,
 924                                                                         TRUE);
 925         } else {
 926                 gtk_text_buffer_move_mark (buffer,
 927                                            priv->find_mark_previous,
 928                                            &iter_match_start);
 929         }
 930
 931         if (!priv->find_mark_next) {
 932                 priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
 933                                                                     &iter_match_end,
 934                                                                     TRUE);
 935         } else {
 936                 gtk_text_buffer_move_mark (buffer,
 937                                            priv->find_mark_next,
 938                                            &iter_match_end);
 939         }
 940
 941         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
 942                                       priv->find_mark_previous,
 943                                       0.0,
 944                                       TRUE,
 945                                       0.5,
 946                                       0.5);
 947
 948         gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
 949         gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
 950
 951         return TRUE;
 952 }
 953
 954 static gboolean
 955 chat_text_view_find_next (EmpathyChatView *view,
 956                             const gchar     *search_criteria,
 957                             gboolean         new_search)
 958 {
 959         EmpathyChatTextViewPriv *priv;
 960         GtkTextBuffer      *buffer;
 961         GtkTextIter         iter_at_mark;
 962         GtkTextIter         iter_match_start;
 963         GtkTextIter         iter_match_end;
 964         gboolean            found;
 965         gboolean            from_start = FALSE;
 966
 967         g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), FALSE);
 968         g_return_val_if_fail (search_criteria != NULL, FALSE);
 969
 970         priv = GET_PRIV (view);
 971
 972         buffer = priv->buffer;
 973
 974         if (EMP_STR_EMPTY (search_criteria)) {
 975                 if (priv->find_mark_next) {
 976                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
 977
 978                         gtk_text_buffer_move_mark (buffer,
 979                                                    priv->find_mark_next,
 980                                                    &iter_at_mark);
 981                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
 982                                                       priv->find_mark_next,
 983                                                       0.0,
 984                                                       TRUE,
 985                                                       0.0,
 986                                                       0.0);
 987                         gtk_text_buffer_select_range (buffer,
 988                                                       &iter_at_mark,
 989                                                       &iter_at_mark);
 990                 }
 991
 992                 return FALSE;
 993         }
 994
 995         if (new_search) {
 996                 from_start = TRUE;
 997         }
 998
 999         if (priv->find_mark_next) {
1000                 gtk_text_buffer_get_iter_at_mark (buffer,
1001                                                   &iter_at_mark,
1002                                                   priv->find_mark_next);
1003         } else {
1004                 gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1005                 from_start = TRUE;
1006         }
1007
1008         priv->find_last_direction = TRUE;
1009
1010         found = empathy_text_iter_forward_search (&iter_at_mark,
1011                                                   search_criteria,
1012                                                   &iter_match_start,
1013                                                   &iter_match_end,
1014                                                   NULL);
1015
1016         if (!found) {
1017                 gboolean result = FALSE;
1018
1019                 if (from_start) {
1020                         return result;
1021                 }
1022
1023                 /* Here we wrap around. */
1024                 if (!new_search && !priv->find_wrapped) {
1025                         priv->find_wrapped = TRUE;
1026                         result = chat_text_view_find_next (view,
1027                                                              search_criteria,
1028                                                              FALSE);
1029                         priv->find_wrapped = FALSE;
1030                 }
1031
1032                 return result;
1033         }
1034
1035         /* Set new mark and show on screen */
1036         if (!priv->find_mark_next) {
1037                 priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
1038                                                                     &iter_match_end,
1039                                                                     TRUE);
1040         } else {
1041                 gtk_text_buffer_move_mark (buffer,
1042                                            priv->find_mark_next,
1043                                            &iter_match_end);
1044         }
1045
1046         if (!priv->find_mark_previous) {
1047                 priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
1048                                                                         &iter_match_start,
1049                                                                         TRUE);
1050         } else {
1051                 gtk_text_buffer_move_mark (buffer,
1052                                            priv->find_mark_previous,
1053                                            &iter_match_start);
1054         }
1055
1056         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1057                                       priv->find_mark_next,
1058                                       0.0,
1059                                       TRUE,
1060                                       0.5,
1061                                       0.5);
1062
1063         gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
1064         gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
1065
1066         return TRUE;
1067 }
1068
1069 static void
1070 chat_text_view_find_abilities (EmpathyChatView *view,
1071                                  const gchar    *search_criteria,
1072                                  gboolean       *can_do_previous,
1073                                  gboolean       *can_do_next)
1074 {
1075         EmpathyChatTextViewPriv *priv;
1076         GtkTextBuffer           *buffer;
1077         GtkTextIter              iter_at_mark;
1078         GtkTextIter              iter_match_start;
1079         GtkTextIter              iter_match_end;
1080
1081         g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
1082         g_return_if_fail (search_criteria != NULL);
1083         g_return_if_fail (can_do_previous != NULL && can_do_next != NULL);
1084
1085         priv = GET_PRIV (view);
1086
1087         buffer = priv->buffer;
1088
1089         if (can_do_previous) {
1090                 if (priv->find_mark_previous) {
1091                         gtk_text_buffer_get_iter_at_mark (buffer,
1092                                                           &iter_at_mark,
1093                                                           priv->find_mark_previous);
1094                 } else {
1095                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1096                 }
1097
1098                 *can_do_previous = empathy_text_iter_backward_search (&iter_at_mark,
1099                                                                       search_criteria,
1100                                                                       &iter_match_start,
1101                                                                       &iter_match_end,
1102                                                                       NULL);
1103         }
1104
1105         if (can_do_next) {
1106                 if (priv->find_mark_next) {
1107                         gtk_text_buffer_get_iter_at_mark (buffer,
1108                                                           &iter_at_mark,
1109                                                           priv->find_mark_next);
1110                 } else {
1111                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1112                 }
1113
1114                 *can_do_next = empathy_text_iter_forward_search (&iter_at_mark,
1115                                                                  search_criteria,
1116                                                                  &iter_match_start,
1117                                                                  &iter_match_end,
1118                                                                  NULL);
1119         }
1120 }
1121
1122 static void
1123 chat_text_view_highlight (EmpathyChatView *view,
1124                             const gchar     *text)
1125 {
1126         GtkTextBuffer *buffer;
1127         GtkTextIter    iter;
1128         GtkTextIter    iter_start;
1129         GtkTextIter    iter_end;
1130         GtkTextIter    iter_match_start;
1131         GtkTextIter    iter_match_end;
1132         gboolean       found;
1133
1134         g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
1135
1136         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
1137
1138         gtk_text_buffer_get_start_iter (buffer, &iter);
1139
1140         gtk_text_buffer_get_bounds (buffer, &iter_start, &iter_end);
1141         gtk_text_buffer_remove_tag_by_name (buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT,
1142                                             &iter_start,
1143                                             &iter_end);
1144
1145         if (EMP_STR_EMPTY (text)) {
1146                 return;
1147         }
1148
1149         while (1) {
1150                 found = empathy_text_iter_forward_search (&iter,
1151                                                           text,
1152                                                           &iter_match_start,
1153                                                           &iter_match_end,
1154                                                           NULL);
1155
1156                 if (!found) {
1157                         break;
1158                 }
1159
1160                 gtk_text_buffer_apply_tag_by_name (buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT,
1161                                                    &iter_match_start,
1162                                                    &iter_match_end);
1163
1164                 iter = iter_match_end;
1165                 gtk_text_iter_forward_char (&iter);
1166         }
1167 }
1168
1169 static void
1170 chat_text_view_copy_clipboard (EmpathyChatView *view)
1171 {
1172         GtkTextBuffer *buffer;
1173         GtkClipboard  *clipboard;
1174
1175         g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
1176
1177         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
1178         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1179
1180         gtk_text_buffer_copy_clipboard (buffer, clipboard);
1181 }
1182
1183 static void
1184 chat_text_view_iface_init (EmpathyChatViewIface *iface)
1185 {
1186         iface->append_message = chat_text_view_append_message;
1187         iface->append_event = chat_text_view_append_event;
1188         iface->scroll = chat_text_view_scroll;
1189         iface->scroll_down = chat_text_view_scroll_down;
1190         iface->get_has_selection = chat_text_view_get_has_selection;
1191         iface->clear = chat_text_view_clear;
1192         iface->find_previous = chat_text_view_find_previous;
1193         iface->find_next = chat_text_view_find_next;
1194         iface->find_abilities = chat_text_view_find_abilities;
1195         iface->highlight = chat_text_view_highlight;
1196         iface->copy_clipboard = chat_text_view_copy_clipboard;
1197 }
1198
1199 EmpathyContact *
1200 empathy_chat_text_view_get_last_contact (EmpathyChatTextView *view)
1201 {
1202         EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1203
1204         g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), NULL);
1205
1206         return priv->last_contact;
1207 }
1208
1209 void
1210 empathy_chat_text_view_set_only_if_date (EmpathyChatTextView *view,
1211                                          gboolean             only_if_date)
1212 {
1213         EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1214
1215         g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
1216
1217         if (only_if_date != priv->only_if_date) {
1218                 priv->only_if_date = only_if_date;
1219                 g_object_notify (G_OBJECT (view), "only-if-date");
1220         }
1221 }
1222
1223 static void
1224 chat_text_view_insert_text_with_emoticons (EmpathyChatTextView *view,
1225                                            GtkTextIter         *iter,
1226                                            const gchar         *str)
1227 {
1228         EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1229         gboolean                 use_smileys = FALSE;
1230         GSList                  *smileys, *l;
1231
1232         empathy_conf_get_bool (empathy_conf_get (),
1233                                EMPATHY_PREFS_CHAT_SHOW_SMILEYS,
1234                                &use_smileys);
1235
1236         if (!use_smileys) {
1237                 gtk_text_buffer_insert (priv->buffer, iter, str, -1);
1238                 return;
1239         }
1240
1241         smileys = empathy_smiley_manager_parse (priv->smiley_manager, str);
1242         for (l = smileys; l; l = l->next) {
1243                 EmpathySmiley *smiley;
1244
1245                 smiley = l->data;
1246                 if (smiley->pixbuf) {
1247                         gtk_text_buffer_insert_pixbuf (priv->buffer, iter, smiley->pixbuf);
1248                 } else {
1249                         gtk_text_buffer_insert (priv->buffer, iter, smiley->str, -1);
1250                 }
1251                 empathy_smiley_free (smiley);
1252         }
1253         g_slist_free (smileys);
1254 }
1255
1256 void
1257 empathy_chat_text_view_append_body (EmpathyChatTextView *view,
1258                                     const gchar         *body,
1259                                     const gchar         *tag)
1260 {
1261         EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1262         GtkTextIter              start_iter, end_iter;
1263         GtkTextMark             *mark;
1264         GtkTextIter              iter;
1265         GMatchInfo              *match_info;
1266         gboolean                 match;
1267         gint                     last = 0;
1268         gint                     s = 0, e = 0;
1269         gchar                   *tmp;
1270
1271         priv = GET_PRIV (view);
1272
1273         gtk_text_buffer_get_end_iter (priv->buffer, &start_iter);
1274         mark = gtk_text_buffer_create_mark (priv->buffer, NULL, &start_iter, TRUE);
1275
1276         if (!uri_regex) {
1277                 uri_regex = g_regex_new (URI_REGEX, 0, 0, NULL);
1278         }
1279
1280         for (match = g_regex_match (uri_regex, body, 0, &match_info); match;
1281              match = g_match_info_next (match_info, NULL)) {
1282                 if (!g_match_info_fetch_pos (match_info, 0, &s, &e))
1283                         continue;
1284
1285                 if (s > last) {
1286                         tmp = empathy_substring (body, last, s);
1287
1288                         gtk_text_buffer_get_end_iter (priv->buffer, &iter);
1289                         chat_text_view_insert_text_with_emoticons (view,
1290                                                                    &iter,
1291                                                                    tmp);
1292                         g_free (tmp);
1293                 }
1294
1295                 tmp = empathy_substring (body, s, e);
1296
1297                 gtk_text_buffer_get_end_iter (priv->buffer, &iter);
1298                 gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
1299                                                           &iter,
1300                                                           tmp,
1301                                                           -1,
1302                                                           EMPATHY_CHAT_TEXT_VIEW_TAG_LINK,
1303                                                           NULL);
1304
1305                 g_free (tmp);
1306                 last = e;
1307         }
1308         g_match_info_free (match_info);
1309
1310         if (last < strlen (body)) {
1311                 gtk_text_buffer_get_end_iter (priv->buffer, &iter);
1312                 chat_text_view_insert_text_with_emoticons (view,
1313                                                            &iter,
1314                                                            body + last);
1315         }
1316
1317         gtk_text_buffer_get_end_iter (priv->buffer, &iter);
1318         gtk_text_buffer_insert (priv->buffer, &iter, "\n", 1);
1319
1320         /* Apply the style to the inserted text. */
1321         gtk_text_buffer_get_iter_at_mark (priv->buffer, &start_iter, mark);
1322         gtk_text_buffer_get_end_iter (priv->buffer, &end_iter);
1323
1324         gtk_text_buffer_apply_tag_by_name (priv->buffer,
1325                                            tag,
1326                                            &start_iter,
1327                                            &end_iter);
1328
1329         gtk_text_buffer_delete_mark (priv->buffer, mark);
1330 }
1331
1332 void
1333 empathy_chat_text_view_append_spacing (EmpathyChatTextView *view)
1334 {
1335         EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1336         GtkTextIter              iter;
1337
1338         gtk_text_buffer_get_end_iter (priv->buffer, &iter);
1339         gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
1340                                                   &iter,
1341                                                   "\n",
1342                                                   -1,
1343                                                   EMPATHY_CHAT_TEXT_VIEW_TAG_CUT,
1344                                                   EMPATHY_CHAT_TEXT_VIEW_TAG_SPACING,
1345                                                   NULL);
1346 }
1347
1348 GtkTextTag *
1349 empathy_chat_text_view_tag_set (EmpathyChatTextView *view,
1350                                 const gchar         *tag_name,
1351                                 const gchar         *first_property_name,
1352                                 ...)
1353 {
1354         EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1355         GtkTextTag              *tag;
1356         GtkTextTagTable         *table;
1357         va_list                  list;
1358
1359         g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), NULL);
1360         g_return_val_if_fail (tag_name != NULL, NULL);
1361
1362         table = gtk_text_buffer_get_tag_table (priv->buffer);
1363         tag = gtk_text_tag_table_lookup (table, tag_name);
1364
1365         if (tag && first_property_name) {
1366                 va_start (list, first_property_name);
1367                 g_object_set_valist (G_OBJECT (tag), first_property_name, list);
1368                 va_end (list);
1369         }
1370
1371         return tag;
1372 }
1373