libempathy-gtk/empathy-chat-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  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of the
   8  * License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public
  16  * License along with this program; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Authors: Mikael Hallendal <micke@imendio.com>
  21  *          Richard Hult <richard@imendio.com>
  22  *          Martyn Russell <martyn@imendio.com>
  23  */
  24
  25 #include "config.h"
  26
  27 #include <sys/types.h>
  28 #include <string.h>
  29 #include <time.h>
  30
  31 #include <glib/gi18n.h>
  32 #include <gtk/gtkbutton.h>
  33 #include <gtk/gtkimage.h>
  34 #include <gtk/gtkmenu.h>
  35 #include <gtk/gtkmenuitem.h>
  36 #include <gtk/gtkimagemenuitem.h>
  37 #include <gtk/gtkstock.h>
  38 #include <gtk/gtkscrolledwindow.h>
  39 #include <gtk/gtksizegroup.h>
  40 #include <glade/glade.h>
  41
  42 #include <telepathy-glib/util.h>
  43 #include <libmissioncontrol/mc-account.h>
  44
  45 #include <libempathy/empathy-utils.h>
  46
  47 #include "empathy-chat-view.h"
  48 #include "empathy-chat.h"
  49 #include "empathy-conf.h"
  50 #include "empathy-theme-manager.h"
  51 #include "empathy-ui-utils.h"
  52 #include "empathy-smiley-manager.h"
  53
  54 #define DEBUG_FLAG EMPATHY_DEBUG_CHAT
  55 #include <libempathy/empathy-debug.h>
  56
  57 /* Number of seconds between timestamps when using normal mode, 5 minutes. */
  58 #define TIMESTAMP_INTERVAL 300
  59
  60 #define MAX_LINES 800
  61 #define MAX_SCROLL_TIME 0.4 /* seconds */
  62 #define SCROLL_DELAY 33     /* milliseconds */
  63
  64 #define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EMPATHY_TYPE_CHAT_VIEW, EmpathyChatViewPriv))
  65
  66 struct _EmpathyChatViewPriv {
  67         GtkTextBuffer *buffer;
  68
  69         EmpathyTheme   *theme;
  70
  71         time_t         last_timestamp;
  72
  73         gboolean       allow_scrolling;
  74         guint          scroll_timeout;
  75         GTimer        *scroll_time;
  76
  77         GtkTextMark   *find_mark_previous;
  78         GtkTextMark   *find_mark_next;
  79         gboolean       find_wrapped;
  80         gboolean       find_last_direction;
  81
  82         /* This is for the group chat so we know if the "other" last contact
  83          * changed, so we know whether to insert a header or not.
  84          */
  85         EmpathyContact *last_contact;
  86
  87         guint          notify_system_fonts_id;
  88         guint          notify_show_avatars_id;
  89 };
  90
  91 static void     empathy_chat_view_class_init          (EmpathyChatViewClass      *klass);
  92 static void     empathy_chat_view_init                (EmpathyChatView           *view);
  93 static void     chat_view_finalize                   (GObject                  *object);
  94 static gboolean chat_view_drag_motion                (GtkWidget                *widget,
  95                                                       GdkDragContext           *context,
  96                                                       gint                      x,
  97                                                       gint                      y,
  98                                                       guint                     time);
  99 static void     chat_view_size_allocate              (GtkWidget                *widget,
 100                                                       GtkAllocation            *alloc);
 101 static void     chat_view_setup_tags                 (EmpathyChatView           *view);
 102 static void     chat_view_system_font_update         (EmpathyChatView           *view);
 103 static void     chat_view_notify_system_font_cb      (EmpathyConf               *conf,
 104                                                       const gchar              *key,
 105                                                       gpointer                  user_data);
 106 static void     chat_view_notify_show_avatars_cb     (EmpathyConf               *conf,
 107                                                       const gchar              *key,
 108                                                       gpointer                  user_data);
 109 static void     chat_view_populate_popup             (EmpathyChatView           *view,
 110                                                       GtkMenu                  *menu,
 111                                                       gpointer                  user_data);
 112 static gboolean chat_view_event_cb                   (EmpathyChatView           *view,
 113                                                       GdkEventMotion           *event,
 114                                                       GtkTextTag               *tag);
 115 static gboolean chat_view_url_event_cb               (GtkTextTag               *tag,
 116                                                       GObject                  *object,
 117                                                       GdkEvent                 *event,
 118                                                       GtkTextIter              *iter,
 119                                                       GtkTextBuffer            *buffer);
 120 static void     chat_view_open_address_cb            (GtkMenuItem              *menuitem,
 121                                                       const gchar              *url);
 122 static void     chat_view_copy_address_cb            (GtkMenuItem              *menuitem,
 123                                                       const gchar              *url);
 124 static void     chat_view_clear_view_cb              (GtkMenuItem              *menuitem,
 125                                                       EmpathyChatView           *view);
 126 static gboolean chat_view_is_scrolled_down           (EmpathyChatView           *view);
 127 static void     chat_view_theme_changed_cb           (EmpathyThemeManager       *manager,
 128                                                       EmpathyChatView           *view);
 129 static void     chat_view_theme_notify_cb            (EmpathyTheme              *theme,
 130                                                       GParamSpec                *param,
 131                                                       EmpathyChatView           *view);
 132
 133 G_DEFINE_TYPE (EmpathyChatView, empathy_chat_view, GTK_TYPE_TEXT_VIEW);
 134
 135 static void
 136 empathy_chat_view_class_init (EmpathyChatViewClass *klass)
 137 {
 138         GObjectClass   *object_class = G_OBJECT_CLASS (klass);
 139         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 140
 141         object_class->finalize = chat_view_finalize;
 142         widget_class->size_allocate = chat_view_size_allocate;
 143         widget_class->drag_motion = chat_view_drag_motion;
 144
 145         g_type_class_add_private (object_class, sizeof (EmpathyChatViewPriv));
 146 }
 147
 148 static void
 149 empathy_chat_view_init (EmpathyChatView *view)
 150 {
 151         EmpathyChatViewPriv *priv;
 152         gboolean            show_avatars;
 153
 154         priv = GET_PRIV (view);
 155
 156         priv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 157         priv->last_timestamp = 0;
 158         priv->allow_scrolling = TRUE;
 159
 160         g_object_set (view,
 161                       "wrap-mode", GTK_WRAP_WORD_CHAR,
 162                       "editable", FALSE,
 163                       "cursor-visible", FALSE,
 164                       NULL);
 165
 166         priv->notify_system_fonts_id =
 167                 empathy_conf_notify_add (empathy_conf_get (),
 168                                          "/desktop/gnome/interface/document_font_name",
 169                                          chat_view_notify_system_font_cb,
 170                                          view);
 171         chat_view_system_font_update (view);
 172
 173         priv->notify_show_avatars_id =
 174                 empathy_conf_notify_add (empathy_conf_get (),
 175                                          EMPATHY_PREFS_UI_SHOW_AVATARS,
 176                                          chat_view_notify_show_avatars_cb,
 177                                          view);
 178
 179         chat_view_setup_tags (view);
 180
 181         empathy_theme_manager_apply_saved (empathy_theme_manager_get (), view);
 182
 183         show_avatars = FALSE;
 184         empathy_conf_get_bool (empathy_conf_get (),
 185                                EMPATHY_PREFS_UI_SHOW_AVATARS,
 186                                &show_avatars);
 187
 188         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 189
 190         g_signal_connect (view,
 191                           "populate-popup",
 192                           G_CALLBACK (chat_view_populate_popup),
 193                           NULL);
 194
 195         g_signal_connect_object (empathy_theme_manager_get (),
 196                                  "theme-changed",
 197                                  G_CALLBACK (chat_view_theme_changed_cb),
 198                                  view,
 199                                  0);
 200 }
 201
 202 static void
 203 chat_view_finalize (GObject *object)
 204 {
 205         EmpathyChatView     *view;
 206         EmpathyChatViewPriv *priv;
 207
 208         view = EMPATHY_CHAT_VIEW (object);
 209         priv = GET_PRIV (view);
 210
 211         DEBUG ("finalize: %p", object);
 212
 213         empathy_conf_notify_remove (empathy_conf_get (), priv->notify_system_fonts_id);
 214         empathy_conf_notify_remove (empathy_conf_get (), priv->notify_show_avatars_id);
 215
 216         if (priv->last_contact) {
 217                 g_object_unref (priv->last_contact);
 218         }
 219         if (priv->scroll_time) {
 220                 g_timer_destroy (priv->scroll_time);
 221         }
 222         if (priv->scroll_timeout) {
 223                 g_source_remove (priv->scroll_timeout);
 224         }
 225
 226         if (priv->theme) {
 227                 g_signal_handlers_disconnect_by_func (priv->theme,
 228                                                       chat_view_theme_notify_cb,
 229                                                       view);
 230                 g_object_unref (priv->theme);
 231         }
 232
 233         G_OBJECT_CLASS (empathy_chat_view_parent_class)->finalize (object);
 234 }
 235
 236 static gboolean
 237 chat_view_drag_motion (GtkWidget        *widget,
 238                        GdkDragContext   *context,
 239                        gint              x,
 240                        gint              y,
 241                        guint             time)
 242 {
 243         /* Don't handle drag motion, since we don't want the view to scroll as
 244          * the result of dragging something across it.
 245          */
 246
 247         return FALSE;
 248 }
 249
 250 static void
 251 chat_view_size_allocate (GtkWidget     *widget,
 252                          GtkAllocation *alloc)
 253 {
 254         gboolean down;
 255
 256         down = chat_view_is_scrolled_down (EMPATHY_CHAT_VIEW (widget));
 257
 258         GTK_WIDGET_CLASS (empathy_chat_view_parent_class)->size_allocate (widget, alloc);
 259
 260         if (down) {
 261                 GtkAdjustment *adj;
 262
 263                 adj = GTK_TEXT_VIEW (widget)->vadjustment;
 264                 gtk_adjustment_set_value (adj, adj->upper - adj->page_size);
 265         }
 266 }
 267
 268 static void
 269 chat_view_setup_tags (EmpathyChatView *view)
 270 {
 271         EmpathyChatViewPriv *priv;
 272         GtkTextTag         *tag;
 273
 274         priv = GET_PRIV (view);
 275
 276         gtk_text_buffer_create_tag (priv->buffer,
 277                                     "cut",
 278                                     NULL);
 279
 280         /* FIXME: Move to the theme and come up with something that looks a bit
 281          * nicer.
 282          */
 283         gtk_text_buffer_create_tag (priv->buffer,
 284                                     "highlight",
 285                                     "background", "yellow",
 286                                     NULL);
 287
 288         tag = gtk_text_buffer_create_tag (priv->buffer,
 289                                           "link",
 290                                           NULL);
 291
 292         g_signal_connect (tag,
 293                           "event",
 294                           G_CALLBACK (chat_view_url_event_cb),
 295                           priv->buffer);
 296
 297         g_signal_connect (view,
 298                           "motion-notify-event",
 299                           G_CALLBACK (chat_view_event_cb),
 300                           tag);
 301 }
 302
 303 static void
 304 chat_view_system_font_update (EmpathyChatView *view)
 305 {
 306         PangoFontDescription *font_description = NULL;
 307         gchar                *font_name;
 308
 309         if (empathy_conf_get_string (empathy_conf_get (),
 310                                      "/desktop/gnome/interface/document_font_name",
 311                                      &font_name) && font_name) {
 312                 font_description = pango_font_description_from_string (font_name);
 313                 g_free (font_name);
 314         } else {
 315                 font_description = NULL;
 316         }
 317
 318         gtk_widget_modify_font (GTK_WIDGET (view), font_description);
 319
 320         if (font_description) {
 321                 pango_font_description_free (font_description);
 322         }
 323 }
 324
 325 static void
 326 chat_view_notify_system_font_cb (EmpathyConf  *conf,
 327                                  const gchar *key,
 328                                  gpointer     user_data)
 329 {
 330         EmpathyChatView *view;
 331         EmpathyChatViewPriv *priv;
 332         gboolean        show_avatars = FALSE;
 333
 334         view = user_data;
 335         priv = GET_PRIV (view);
 336
 337         chat_view_system_font_update (view);
 338
 339         /* Ugly, again, to adjust the vertical position of the nick... Will fix
 340          * this when reworking the theme manager so that view register
 341          * themselves with it instead of the other way around.
 342          */
 343         empathy_conf_get_bool (conf,
 344                                EMPATHY_PREFS_UI_SHOW_AVATARS,
 345                                &show_avatars);
 346
 347         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 348 }
 349
 350 static void
 351 chat_view_notify_show_avatars_cb (EmpathyConf  *conf,
 352                                   const gchar *key,
 353                                   gpointer     user_data)
 354 {
 355         EmpathyChatView     *view;
 356         EmpathyChatViewPriv *priv;
 357         gboolean            show_avatars = FALSE;
 358
 359         view = user_data;
 360         priv = GET_PRIV (view);
 361
 362         empathy_conf_get_bool (conf, key, &show_avatars);
 363
 364         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 365 }
 366
 367 static void
 368 chat_view_populate_popup (EmpathyChatView *view,
 369                           GtkMenu        *menu,
 370                           gpointer        user_data)
 371 {
 372         EmpathyChatViewPriv *priv;
 373         GtkTextTagTable    *table;
 374         GtkTextTag         *tag;
 375         gint                x, y;
 376         GtkTextIter         iter, start, end;
 377         GtkWidget          *item;
 378         gchar              *str = NULL;
 379
 380         priv = GET_PRIV (view);
 381
 382         /* Clear menu item */
 383         if (gtk_text_buffer_get_char_count (priv->buffer) > 0) {
 384                 item = gtk_menu_item_new ();
 385                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 386                 gtk_widget_show (item);
 387
 388                 item = gtk_image_menu_item_new_from_stock (GTK_STOCK_CLEAR, NULL);
 389                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 390                 gtk_widget_show (item);
 391
 392                 g_signal_connect (item,
 393                                   "activate",
 394                                   G_CALLBACK (chat_view_clear_view_cb),
 395                                   view);
 396         }
 397
 398         /* Link context menu items */
 399         table = gtk_text_buffer_get_tag_table (priv->buffer);
 400         tag = gtk_text_tag_table_lookup (table, "link");
 401
 402         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
 403
 404         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
 405                                                GTK_TEXT_WINDOW_WIDGET,
 406                                                x, y,
 407                                                &x, &y);
 408
 409         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
 410
 411         start = end = iter;
 412
 413         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 414             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 415                 str = gtk_text_buffer_get_text (priv->buffer,
 416                                                 &start, &end, FALSE);
 417         }
 418
 419         if (G_STR_EMPTY (str)) {
 420                 g_free (str);
 421                 return;
 422         }
 423
 424         /* NOTE: Set data just to get the string freed when not needed. */
 425         g_object_set_data_full (G_OBJECT (menu),
 426                                 "url", str,
 427                                 (GDestroyNotify) g_free);
 428
 429         item = gtk_menu_item_new ();
 430         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 431         gtk_widget_show (item);
 432
 433         item = gtk_menu_item_new_with_mnemonic (_("_Copy Link Address"));
 434         g_signal_connect (item,
 435                           "activate",
 436                           G_CALLBACK (chat_view_copy_address_cb),
 437                           str);
 438         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 439         gtk_widget_show (item);
 440
 441         item = gtk_menu_item_new_with_mnemonic (_("_Open Link"));
 442         g_signal_connect (item,
 443                           "activate",
 444                           G_CALLBACK (chat_view_open_address_cb),
 445                           str);
 446         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 447         gtk_widget_show (item);
 448 }
 449
 450 static gboolean
 451 chat_view_event_cb (EmpathyChatView *view,
 452                     GdkEventMotion *event,
 453                     GtkTextTag     *tag)
 454 {
 455         static GdkCursor  *hand = NULL;
 456         static GdkCursor  *beam = NULL;
 457         GtkTextWindowType  type;
 458         GtkTextIter        iter;
 459         GdkWindow         *win;
 460         gint               x, y, buf_x, buf_y;
 461
 462         type = gtk_text_view_get_window_type (GTK_TEXT_VIEW (view),
 463                                               event->window);
 464
 465         if (type != GTK_TEXT_WINDOW_TEXT) {
 466                 return FALSE;
 467         }
 468
 469         /* Get where the pointer really is. */
 470         win = gtk_text_view_get_window (GTK_TEXT_VIEW (view), type);
 471         if (!win) {
 472                 return FALSE;
 473         }
 474
 475         gdk_window_get_pointer (win, &x, &y, NULL);
 476
 477         /* Get the iter where the cursor is at */
 478         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view), type,
 479                                                x, y,
 480                                                &buf_x, &buf_y);
 481
 482         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view),
 483                                             &iter,
 484                                             buf_x, buf_y);
 485
 486         if (gtk_text_iter_has_tag (&iter, tag)) {
 487                 if (!hand) {
 488                         hand = gdk_cursor_new (GDK_HAND2);
 489                         beam = gdk_cursor_new (GDK_XTERM);
 490                 }
 491                 gdk_window_set_cursor (win, hand);
 492         } else {
 493                 if (!beam) {
 494                         beam = gdk_cursor_new (GDK_XTERM);
 495                 }
 496                 gdk_window_set_cursor (win, beam);
 497         }
 498
 499         return FALSE;
 500 }
 501
 502 static gboolean
 503 chat_view_url_event_cb (GtkTextTag    *tag,
 504                         GObject       *object,
 505                         GdkEvent      *event,
 506                         GtkTextIter   *iter,
 507                         GtkTextBuffer *buffer)
 508 {
 509         GtkTextIter  start, end;
 510         gchar       *str;
 511
 512         /* If the link is being selected, don't do anything. */
 513         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 514         if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end)) {
 515                 return FALSE;
 516         }
 517
 518         if (event->type == GDK_BUTTON_RELEASE && event->button.button == 1) {
 519                 start = end = *iter;
 520
 521                 if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 522                     gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 523                         str = gtk_text_buffer_get_text (buffer,
 524                                                         &start,
 525                                                         &end,
 526                                                         FALSE);
 527
 528                         empathy_url_show (str);
 529                         g_free (str);
 530                 }
 531         }
 532
 533         return FALSE;
 534 }
 535
 536 static void
 537 chat_view_open_address_cb (GtkMenuItem *menuitem, const gchar *url)
 538 {
 539         empathy_url_show (url);
 540 }
 541
 542 static void
 543 chat_view_copy_address_cb (GtkMenuItem *menuitem, const gchar *url)
 544 {
 545         GtkClipboard *clipboard;
 546
 547         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
 548         gtk_clipboard_set_text (clipboard, url, -1);
 549
 550         clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
 551         gtk_clipboard_set_text (clipboard, url, -1);
 552 }
 553
 554 static void
 555 chat_view_clear_view_cb (GtkMenuItem *menuitem, EmpathyChatView *view)
 556 {
 557         empathy_chat_view_clear (view);
 558 }
 559
 560 static gboolean
 561 chat_view_is_scrolled_down (EmpathyChatView *view)
 562 {
 563         GtkWidget *sw;
 564
 565         sw = gtk_widget_get_parent (GTK_WIDGET (view));
 566         if (GTK_IS_SCROLLED_WINDOW (sw)) {
 567                 GtkAdjustment *vadj;
 568
 569                 vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (sw));
 570
 571                 if (vadj->value + vadj->page_size / 2 < vadj->upper - vadj->page_size) {
 572                         return FALSE;
 573                 }
 574         }
 575
 576         return TRUE;
 577 }
 578
 579 static void
 580 chat_view_maybe_trim_buffer (EmpathyChatView *view)
 581 {
 582         EmpathyChatViewPriv *priv;
 583         GtkTextIter         top, bottom;
 584         gint                line;
 585         gint                remove;
 586         GtkTextTagTable    *table;
 587         GtkTextTag         *tag;
 588
 589         priv = GET_PRIV (view);
 590
 591         gtk_text_buffer_get_end_iter (priv->buffer, &bottom);
 592         line = gtk_text_iter_get_line (&bottom);
 593         if (line < MAX_LINES) {
 594                 return;
 595         }
 596
 597         remove = line - MAX_LINES;
 598         gtk_text_buffer_get_start_iter (priv->buffer, &top);
 599
 600         bottom = top;
 601         if (!gtk_text_iter_forward_lines (&bottom, remove)) {
 602                 return;
 603         }
 604
 605         /* Track backwords to a place where we can safely cut, we don't do it in
 606          * the middle of a tag.
 607          */
 608         table = gtk_text_buffer_get_tag_table (priv->buffer);
 609         tag = gtk_text_tag_table_lookup (table, "cut");
 610         if (!tag) {
 611                 return;
 612         }
 613
 614         if (!gtk_text_iter_forward_to_tag_toggle (&bottom, tag)) {
 615                 return;
 616         }
 617
 618         if (!gtk_text_iter_equal (&top, &bottom)) {
 619                 gtk_text_buffer_delete (priv->buffer, &top, &bottom);
 620         }
 621 }
 622
 623 static void
 624 chat_view_theme_changed_cb (EmpathyThemeManager *manager,
 625                             EmpathyChatView     *view)
 626 {
 627         EmpathyChatViewPriv *priv;
 628         gboolean            show_avatars = FALSE;
 629
 630         priv = GET_PRIV (view);
 631
 632         empathy_theme_manager_apply_saved (manager, view);
 633
 634         /* Needed for now to update the "rise" property of the names to get it
 635          * vertically centered.
 636          */
 637         empathy_conf_get_bool (empathy_conf_get (),
 638                                EMPATHY_PREFS_UI_SHOW_AVATARS,
 639                                &show_avatars);
 640         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 641 }
 642
 643 /* Pads a pixbuf to the specified size, by centering it in a larger transparent
 644  * pixbuf. Returns a new ref.
 645  */
 646 static GdkPixbuf *
 647 chat_view_pad_to_size (GdkPixbuf *pixbuf,
 648                        gint       width,
 649                        gint       height,
 650                        gint       extra_padding_right)
 651 {
 652         gint       src_width, src_height;
 653         GdkPixbuf *padded;
 654         gint       x_offset, y_offset;
 655
 656         src_width = gdk_pixbuf_get_width (pixbuf);
 657         src_height = gdk_pixbuf_get_height (pixbuf);
 658
 659         x_offset = (width - src_width) / 2;
 660         y_offset = (height - src_height) / 2;
 661
 662         padded = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (pixbuf),
 663                                  TRUE, /* alpha */
 664                                  gdk_pixbuf_get_bits_per_sample (pixbuf),
 665                                  width + extra_padding_right,
 666                                  height);
 667
 668         gdk_pixbuf_fill (padded, 0);
 669
 670         gdk_pixbuf_copy_area (pixbuf,
 671                               0, /* source coords */
 672                               0,
 673                               src_width,
 674                               src_height,
 675                               padded,
 676                               x_offset, /* dest coords */
 677                               y_offset);
 678
 679         return padded;
 680 }
 681
 682 typedef struct {
 683         GdkPixbuf *pixbuf;
 684         gchar     *token;
 685 } AvatarData;
 686
 687 static void
 688 chat_view_avatar_cache_data_free (gpointer ptr)
 689 {
 690         AvatarData *data = ptr;
 691
 692         g_object_unref (data->pixbuf);
 693         g_free (data->token);
 694         g_slice_free (AvatarData, data);
 695 }
 696
 697 GdkPixbuf *
 698 empathy_chat_view_get_avatar_pixbuf_with_cache (EmpathyContact *contact)
 699 {
 700         AvatarData        *data;
 701         EmpathyAvatar     *avatar;
 702         GdkPixbuf         *tmp_pixbuf;
 703         GdkPixbuf         *pixbuf = NULL;
 704
 705         /* Check if avatar is in cache and if it's up to date */
 706         avatar = empathy_contact_get_avatar (contact);
 707         data = g_object_get_data (G_OBJECT (contact), "chat-view-avatar-cache");
 708         if (data) {
 709                 if (avatar && !tp_strdiff (avatar->token, data->token)) {
 710                         /* We have the avatar in cache */
 711                         return data->pixbuf;
 712                 }
 713         }
 714
 715         /* Avatar not in cache, create pixbuf */
 716         tmp_pixbuf = empathy_pixbuf_avatar_from_contact_scaled (contact, 32, 32);
 717         if (tmp_pixbuf) {
 718                 pixbuf = chat_view_pad_to_size (tmp_pixbuf, 32, 32, 6);
 719                 g_object_unref (tmp_pixbuf);
 720         }
 721         if (!pixbuf) {
 722                 return NULL;
 723         }
 724
 725         /* Insert new pixbuf in cache */
 726         data = g_slice_new0 (AvatarData);
 727         data->token = g_strdup (avatar->token);
 728         data->pixbuf = pixbuf;
 729
 730         g_object_set_data_full (G_OBJECT (contact), "chat-view-avatar-cache",
 731                                 data, chat_view_avatar_cache_data_free);
 732
 733         return data->pixbuf;
 734 }
 735
 736 EmpathyChatView *
 737 empathy_chat_view_new (void)
 738 {
 739         return g_object_new (EMPATHY_TYPE_CHAT_VIEW, NULL);
 740 }
 741
 742 /* Code stolen from pidgin/gtkimhtml.c */
 743 static gboolean
 744 chat_view_scroll_cb (EmpathyChatView *view)
 745 {
 746         EmpathyChatViewPriv *priv;
 747         GtkAdjustment      *adj;
 748         gdouble             max_val;
 749
 750         priv = GET_PRIV (view);
 751         adj = GTK_TEXT_VIEW (view)->vadjustment;
 752         max_val = adj->upper - adj->page_size;
 753
 754         g_return_val_if_fail (priv->scroll_time != NULL, FALSE);
 755
 756         if (g_timer_elapsed (priv->scroll_time, NULL) > MAX_SCROLL_TIME) {
 757                 /* time's up. jump to the end and kill the timer */
 758                 gtk_adjustment_set_value (adj, max_val);
 759                 g_timer_destroy (priv->scroll_time);
 760                 priv->scroll_time = NULL;
 761                 priv->scroll_timeout = 0;
 762                 return FALSE;
 763         }
 764
 765         /* scroll by 1/3rd the remaining distance */
 766         gtk_adjustment_set_value (adj, gtk_adjustment_get_value (adj) + ((max_val - gtk_adjustment_get_value (adj)) / 3));
 767         return TRUE;
 768 }
 769
 770 void
 771 empathy_chat_view_scroll_down (EmpathyChatView *view)
 772 {
 773         EmpathyChatViewPriv *priv;
 774
 775         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 776
 777         priv = GET_PRIV (view);
 778
 779         if (!priv->allow_scrolling) {
 780                 return;
 781         }
 782
 783         DEBUG ("Scrolling down");
 784
 785         if (priv->scroll_time) {
 786                 g_timer_reset (priv->scroll_time);
 787         } else {
 788                 priv->scroll_time = g_timer_new();
 789         }
 790         if (!priv->scroll_timeout) {
 791                 priv->scroll_timeout = g_timeout_add (SCROLL_DELAY,
 792                                                       (GSourceFunc) chat_view_scroll_cb,
 793                                                       view);
 794         }
 795 }
 796
 797 void
 798 empathy_chat_view_append_message (EmpathyChatView *view,
 799                                   EmpathyMessage  *msg)
 800 {
 801         EmpathyChatViewPriv *priv = GET_PRIV (view);
 802         gboolean             bottom;
 803
 804         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 805         g_return_if_fail (EMPATHY_IS_MESSAGE (msg));
 806
 807         if (!empathy_message_get_body (msg)) {
 808                 return;
 809         }
 810
 811         bottom = chat_view_is_scrolled_down (view);
 812
 813         chat_view_maybe_trim_buffer (view);
 814
 815         empathy_theme_append_message (priv->theme, view, msg);
 816
 817         if (bottom) {
 818                 empathy_chat_view_scroll_down (view);
 819         }
 820
 821         if (priv->last_contact) {
 822                 g_object_unref (priv->last_contact);
 823         }
 824         priv->last_contact = g_object_ref (empathy_message_get_sender (msg));
 825 }
 826
 827 void
 828 empathy_chat_view_append_event (EmpathyChatView *view,
 829                                const gchar    *str)
 830 {
 831         EmpathyChatViewPriv *priv;
 832         gboolean            bottom;
 833
 834         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 835         g_return_if_fail (!G_STR_EMPTY (str));
 836
 837         priv = GET_PRIV (view);
 838
 839         bottom = chat_view_is_scrolled_down (view);
 840
 841         chat_view_maybe_trim_buffer (view);
 842
 843         empathy_theme_append_event (priv->theme, view, str);
 844
 845         if (bottom) {
 846                 empathy_chat_view_scroll_down (view);
 847         }
 848
 849         if (priv->last_contact) {
 850                 g_object_unref (priv->last_contact);
 851                 priv->last_contact = NULL;
 852         }
 853 }
 854
 855 void
 856 empathy_chat_view_append_button (EmpathyChatView *view,
 857                                 const gchar    *message,
 858                                 GtkWidget      *button1,
 859                                 GtkWidget      *button2)
 860 {
 861         EmpathyChatViewPriv   *priv;
 862         GtkTextChildAnchor   *anchor;
 863         GtkTextIter           iter;
 864         gboolean              bottom;
 865         const gchar          *tag;
 866
 867         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 868         g_return_if_fail (button1 != NULL);
 869
 870         priv = GET_PRIV (view);
 871
 872         tag = "invite";
 873
 874         bottom = chat_view_is_scrolled_down (view);
 875
 876         empathy_theme_append_timestamp (priv->theme, view, NULL, TRUE, TRUE);
 877
 878         if (message) {
 879                 empathy_theme_append_text (priv->theme, view, message, tag, NULL);
 880         }
 881
 882         gtk_text_buffer_get_end_iter (priv->buffer, &iter);
 883
 884         anchor = gtk_text_buffer_create_child_anchor (priv->buffer, &iter);
 885         gtk_text_view_add_child_at_anchor (GTK_TEXT_VIEW (view), button1, anchor);
 886         gtk_widget_show (button1);
 887
 888         gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
 889                                                   &iter,
 890                                                   " ",
 891                                                   1,
 892                                                   tag,
 893                                                   NULL);
 894
 895         if (button2) {
 896                 gtk_text_buffer_get_end_iter (priv->buffer, &iter);
 897
 898                 anchor = gtk_text_buffer_create_child_anchor (priv->buffer, &iter);
 899                 gtk_text_view_add_child_at_anchor (GTK_TEXT_VIEW (view), button2, anchor);
 900                 gtk_widget_show (button2);
 901
 902                 gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
 903                                                           &iter,
 904                                                           " ",
 905                                                           1,
 906                                                           tag,
 907                                                           NULL);
 908         }
 909
 910         gtk_text_buffer_get_end_iter (priv->buffer, &iter);
 911         gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
 912                                                   &iter,
 913                                                   "\n\n",
 914                                                   2,
 915                                                   tag,
 916                                                   NULL);
 917
 918         if (bottom) {
 919                 empathy_chat_view_scroll_down (view);
 920         }
 921
 922         if (priv->last_contact) {
 923                 g_object_unref (priv->last_contact);
 924                 priv->last_contact = NULL;
 925         }
 926 }
 927
 928 void
 929 empathy_chat_view_scroll (EmpathyChatView *view,
 930                          gboolean        allow_scrolling)
 931 {
 932         EmpathyChatViewPriv *priv = GET_PRIV (view);
 933
 934         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 935
 936         DEBUG ("Scrolling %s", allow_scrolling ? "enabled" : "disabled");
 937
 938         priv->allow_scrolling = allow_scrolling;
 939         if (allow_scrolling) {
 940                 empathy_chat_view_scroll_down (view);
 941         }
 942 }
 943
 944 gboolean
 945 empathy_chat_view_get_selection_bounds (EmpathyChatView *view,
 946                                        GtkTextIter    *start,
 947                                        GtkTextIter    *end)
 948 {
 949         GtkTextBuffer *buffer;
 950
 951         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
 952
 953         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 954
 955         return gtk_text_buffer_get_selection_bounds (buffer, start, end);
 956 }
 957
 958 void
 959 empathy_chat_view_clear (EmpathyChatView *view)
 960 {
 961         GtkTextBuffer      *buffer;
 962         EmpathyChatViewPriv *priv;
 963
 964         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 965
 966         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 967         gtk_text_buffer_set_text (buffer, "", -1);
 968
 969         /* We set these back to the initial values so we get
 970          * timestamps when clearing the window to know when
 971          * conversations start.
 972          */
 973         priv = GET_PRIV (view);
 974
 975         priv->last_timestamp = 0;
 976 }
 977
 978 gboolean
 979 empathy_chat_view_find_previous (EmpathyChatView *view,
 980                                 const gchar    *search_criteria,
 981                                 gboolean        new_search)
 982 {
 983         EmpathyChatViewPriv *priv;
 984         GtkTextBuffer      *buffer;
 985         GtkTextIter         iter_at_mark;
 986         GtkTextIter         iter_match_start;
 987         GtkTextIter         iter_match_end;
 988         gboolean            found;
 989         gboolean            from_start = FALSE;
 990
 991         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
 992         g_return_val_if_fail (search_criteria != NULL, FALSE);
 993
 994         priv = GET_PRIV (view);
 995
 996         buffer = priv->buffer;
 997
 998         if (G_STR_EMPTY (search_criteria)) {
 999                 if (priv->find_mark_previous) {
1000                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1001
1002                         gtk_text_buffer_move_mark (buffer,
1003                                                    priv->find_mark_previous,
1004                                                    &iter_at_mark);
1005                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1006                                                       priv->find_mark_previous,
1007                                                       0.0,
1008                                                       TRUE,
1009                                                       0.0,
1010                                                       0.0);
1011                         gtk_text_buffer_select_range (buffer,
1012                                                       &iter_at_mark,
1013                                                       &iter_at_mark);
1014                 }
1015
1016                 return FALSE;
1017         }
1018
1019         if (new_search) {
1020                 from_start = TRUE;
1021         }
1022
1023         if (priv->find_mark_previous) {
1024                 gtk_text_buffer_get_iter_at_mark (buffer,
1025                                                   &iter_at_mark,
1026                                                   priv->find_mark_previous);
1027         } else {
1028                 gtk_text_buffer_get_end_iter (buffer, &iter_at_mark);
1029                 from_start = TRUE;
1030         }
1031
1032         priv->find_last_direction = FALSE;
1033
1034         found = empathy_text_iter_backward_search (&iter_at_mark,
1035                                                   search_criteria,
1036                                                   &iter_match_start,
1037                                                   &iter_match_end,
1038                                                   NULL);
1039
1040         if (!found) {
1041                 gboolean result = FALSE;
1042
1043                 if (from_start) {
1044                         return result;
1045                 }
1046
1047                 /* Here we wrap around. */
1048                 if (!new_search && !priv->find_wrapped) {
1049                         priv->find_wrapped = TRUE;
1050                         result = empathy_chat_view_find_previous (view,
1051                                                                  search_criteria,
1052                                                                  FALSE);
1053                         priv->find_wrapped = FALSE;
1054                 }
1055
1056                 return result;
1057         }
1058
1059         /* Set new mark and show on screen */
1060         if (!priv->find_mark_previous) {
1061                 priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
1062                                                                         &iter_match_start,
1063                                                                         TRUE);
1064         } else {
1065                 gtk_text_buffer_move_mark (buffer,
1066                                            priv->find_mark_previous,
1067                                            &iter_match_start);
1068         }
1069
1070         if (!priv->find_mark_next) {
1071                 priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
1072                                                                     &iter_match_end,
1073                                                                     TRUE);
1074         } else {
1075                 gtk_text_buffer_move_mark (buffer,
1076                                            priv->find_mark_next,
1077                                            &iter_match_end);
1078         }
1079
1080         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1081                                       priv->find_mark_previous,
1082                                       0.0,
1083                                       TRUE,
1084                                       0.5,
1085                                       0.5);
1086
1087         gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
1088         gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
1089
1090         return TRUE;
1091 }
1092
1093 gboolean
1094 empathy_chat_view_find_next (EmpathyChatView *view,
1095                             const gchar    *search_criteria,
1096                             gboolean        new_search)
1097 {
1098         EmpathyChatViewPriv *priv;
1099         GtkTextBuffer      *buffer;
1100         GtkTextIter         iter_at_mark;
1101         GtkTextIter         iter_match_start;
1102         GtkTextIter         iter_match_end;
1103         gboolean            found;
1104         gboolean            from_start = FALSE;
1105
1106         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
1107         g_return_val_if_fail (search_criteria != NULL, FALSE);
1108
1109         priv = GET_PRIV (view);
1110
1111         buffer = priv->buffer;
1112
1113         if (G_STR_EMPTY (search_criteria)) {
1114                 if (priv->find_mark_next) {
1115                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1116
1117                         gtk_text_buffer_move_mark (buffer,
1118                                                    priv->find_mark_next,
1119                                                    &iter_at_mark);
1120                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1121                                                       priv->find_mark_next,
1122                                                       0.0,
1123                                                       TRUE,
1124                                                       0.0,
1125                                                       0.0);
1126                         gtk_text_buffer_select_range (buffer,
1127                                                       &iter_at_mark,
1128                                                       &iter_at_mark);
1129                 }
1130
1131                 return FALSE;
1132         }
1133
1134         if (new_search) {
1135                 from_start = TRUE;
1136         }
1137
1138         if (priv->find_mark_next) {
1139                 gtk_text_buffer_get_iter_at_mark (buffer,
1140                                                   &iter_at_mark,
1141                                                   priv->find_mark_next);
1142         } else {
1143                 gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1144                 from_start = TRUE;
1145         }
1146
1147         priv->find_last_direction = TRUE;
1148
1149         found = empathy_text_iter_forward_search (&iter_at_mark,
1150                                                  search_criteria,
1151                                                  &iter_match_start,
1152                                                  &iter_match_end,
1153                                                  NULL);
1154
1155         if (!found) {
1156                 gboolean result = FALSE;
1157
1158                 if (from_start) {
1159                         return result;
1160                 }
1161
1162                 /* Here we wrap around. */
1163                 if (!new_search && !priv->find_wrapped) {
1164                         priv->find_wrapped = TRUE;
1165                         result = empathy_chat_view_find_next (view,
1166                                                              search_criteria,
1167                                                              FALSE);
1168                         priv->find_wrapped = FALSE;
1169                 }
1170
1171                 return result;
1172         }
1173
1174         /* Set new mark and show on screen */
1175         if (!priv->find_mark_next) {
1176                 priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
1177                                                                &iter_match_end,
1178                                                                TRUE);
1179         } else {
1180                 gtk_text_buffer_move_mark (buffer,
1181                                            priv->find_mark_next,
1182                                            &iter_match_end);
1183         }
1184
1185         if (!priv->find_mark_previous) {
1186                 priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
1187                                                                         &iter_match_start,
1188                                                                         TRUE);
1189         } else {
1190                 gtk_text_buffer_move_mark (buffer,
1191                                            priv->find_mark_previous,
1192                                            &iter_match_start);
1193         }
1194
1195         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1196                                       priv->find_mark_next,
1197                                       0.0,
1198                                       TRUE,
1199                                       0.5,
1200                                       0.5);
1201
1202         gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
1203         gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
1204
1205         return TRUE;
1206 }
1207
1208
1209 void
1210 empathy_chat_view_find_abilities (EmpathyChatView *view,
1211                                  const gchar    *search_criteria,
1212                                  gboolean       *can_do_previous,
1213                                  gboolean       *can_do_next)
1214 {
1215         EmpathyChatViewPriv *priv;
1216         GtkTextBuffer      *buffer;
1217         GtkTextIter         iter_at_mark;
1218         GtkTextIter         iter_match_start;
1219         GtkTextIter         iter_match_end;
1220
1221         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1222         g_return_if_fail (search_criteria != NULL);
1223         g_return_if_fail (can_do_previous != NULL && can_do_next != NULL);
1224
1225         priv = GET_PRIV (view);
1226
1227         buffer = priv->buffer;
1228
1229         if (can_do_previous) {
1230                 if (priv->find_mark_previous) {
1231                         gtk_text_buffer_get_iter_at_mark (buffer,
1232                                                           &iter_at_mark,
1233                                                           priv->find_mark_previous);
1234                 } else {
1235                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1236                 }
1237
1238                 *can_do_previous = empathy_text_iter_backward_search (&iter_at_mark,
1239                                                                      search_criteria,
1240                                                                      &iter_match_start,
1241                                                                      &iter_match_end,
1242                                                                      NULL);
1243         }
1244
1245         if (can_do_next) {
1246                 if (priv->find_mark_next) {
1247                         gtk_text_buffer_get_iter_at_mark (buffer,
1248                                                           &iter_at_mark,
1249                                                           priv->find_mark_next);
1250                 } else {
1251                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1252                 }
1253
1254                 *can_do_next = empathy_text_iter_forward_search (&iter_at_mark,
1255                                                                 search_criteria,
1256                                                                 &iter_match_start,
1257                                                                 &iter_match_end,
1258                                                                 NULL);
1259         }
1260 }
1261
1262 void
1263 empathy_chat_view_highlight (EmpathyChatView *view,
1264                              const gchar     *text)
1265 {
1266         GtkTextBuffer *buffer;
1267         GtkTextIter    iter;
1268         GtkTextIter    iter_start;
1269         GtkTextIter    iter_end;
1270         GtkTextIter    iter_match_start;
1271         GtkTextIter    iter_match_end;
1272         gboolean       found;
1273
1274         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1275
1276         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
1277
1278         gtk_text_buffer_get_start_iter (buffer, &iter);
1279
1280         gtk_text_buffer_get_bounds (buffer, &iter_start, &iter_end);
1281         gtk_text_buffer_remove_tag_by_name (buffer, "highlight",
1282                                             &iter_start,
1283                                             &iter_end);
1284
1285         if (G_STR_EMPTY (text)) {
1286                 return;
1287         }
1288
1289         while (1) {
1290                 found = empathy_text_iter_forward_search (&iter,
1291                                                          text,
1292                                                          &iter_match_start,
1293                                                          &iter_match_end,
1294                                                          NULL);
1295
1296                 if (!found) {
1297                         break;
1298                 }
1299
1300                 gtk_text_buffer_apply_tag_by_name (buffer, "highlight",
1301                                                    &iter_match_start,
1302                                                    &iter_match_end);
1303
1304                 iter = iter_match_end;
1305                 gtk_text_iter_forward_char (&iter);
1306         }
1307 }
1308
1309 void
1310 empathy_chat_view_copy_clipboard (EmpathyChatView *view)
1311 {
1312         GtkTextBuffer *buffer;
1313         GtkClipboard  *clipboard;
1314
1315         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1316
1317         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
1318         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1319
1320         gtk_text_buffer_copy_clipboard (buffer, clipboard);
1321 }
1322
1323 EmpathyTheme *
1324 empathy_chat_view_get_theme (EmpathyChatView *view)
1325 {
1326         EmpathyChatViewPriv *priv;
1327
1328         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), NULL);
1329
1330         priv = GET_PRIV (view);
1331
1332         return priv->theme;
1333 }
1334
1335 static void
1336 chat_view_theme_notify_cb (EmpathyTheme    *theme,
1337                            GParamSpec      *param,
1338                            EmpathyChatView *view)
1339 {
1340         empathy_theme_update_view (theme, view);
1341 }
1342
1343 void
1344 empathy_chat_view_set_theme (EmpathyChatView *view, EmpathyTheme *theme)
1345 {
1346         EmpathyChatViewPriv *priv;
1347
1348         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1349         g_return_if_fail (EMPATHY_IS_THEME (theme));
1350
1351         priv = GET_PRIV (view);
1352
1353         if (priv->theme) {
1354                 g_signal_handlers_disconnect_by_func (priv->theme,
1355                                                       chat_view_theme_notify_cb,
1356                                                       view);
1357                 g_object_unref (priv->theme);
1358         }
1359
1360         priv->theme = g_object_ref (theme);
1361
1362         empathy_theme_update_view (theme, view);
1363         g_signal_connect (priv->theme, "notify",
1364                           G_CALLBACK (chat_view_theme_notify_cb),
1365                           view);
1366
1367         /* FIXME: Redraw all messages using the new theme */
1368 }
1369
1370 void
1371 empathy_chat_view_set_margin (EmpathyChatView *view,
1372                              gint            margin)
1373 {
1374         EmpathyChatViewPriv *priv;
1375
1376         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1377
1378         priv = GET_PRIV (view);
1379
1380         g_object_set (view,
1381                       "left-margin", margin,
1382                       "right-margin", margin,
1383                       NULL);
1384 }
1385
1386 GtkWidget *
1387 empathy_chat_view_get_smiley_menu (GCallback    callback,
1388                                    gpointer     user_data)
1389 {
1390         EmpathySmileyManager *smiley_manager;
1391         GSList               *smileys, *l;
1392         GtkWidget            *menu;
1393         gint                  x = 0;
1394         gint                  y = 0;
1395
1396         g_return_val_if_fail (callback != NULL, NULL);
1397
1398         menu = gtk_menu_new ();
1399
1400         smiley_manager = empathy_smiley_manager_new ();
1401         smileys = empathy_smiley_manager_get_all (smiley_manager);
1402         for (l = smileys; l; l = l->next) {
1403                 EmpathySmiley *smiley;
1404                 GtkWidget     *item;
1405                 GtkWidget     *image;
1406
1407                 smiley = l->data;
1408                 image = gtk_image_new_from_pixbuf (smiley->pixbuf);
1409
1410                 item = gtk_image_menu_item_new_with_label ("");
1411                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
1412
1413                 gtk_menu_attach (GTK_MENU (menu), item,
1414                                  x, x + 1, y, y + 1);
1415
1416                 gtk_widget_set_tooltip_text (item, smiley->str);
1417
1418                 g_object_set_data  (G_OBJECT (item), "smiley_text", smiley->str);
1419                 g_signal_connect (item, "activate", callback, user_data);
1420
1421                 if (x > 3) {
1422                         y++;
1423                         x = 0;
1424                 } else {
1425                         x++;
1426                 }
1427         }
1428         g_object_unref (smiley_manager);
1429
1430         gtk_widget_show_all (menu);
1431
1432         return menu;
1433 }
1434
1435 time_t
1436 empathy_chat_view_get_last_timestamp (EmpathyChatView *view)
1437 {
1438         EmpathyChatViewPriv *priv;
1439
1440         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), 0);
1441
1442         priv = GET_PRIV (view);
1443
1444         return priv->last_timestamp;
1445 }
1446
1447 void
1448 empathy_chat_view_set_last_timestamp (EmpathyChatView *view,
1449                                      time_t          timestamp)
1450 {
1451         EmpathyChatViewPriv *priv;
1452
1453         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1454
1455         priv = GET_PRIV (view);
1456
1457         priv->last_timestamp = timestamp;
1458 }
1459
1460 EmpathyContact *
1461 empathy_chat_view_get_last_contact (EmpathyChatView *view)
1462 {
1463         EmpathyChatViewPriv *priv;
1464
1465         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), NULL);
1466
1467         priv = GET_PRIV (view);
1468
1469         return priv->last_contact;
1470 }
1471