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 #include <libempathy/empathy-debug.h>
  47
  48 #include "empathy-chat-view.h"
  49 #include "empathy-chat.h"
  50 #include "empathy-conf.h"
  51 #include "empathy-theme-manager.h"
  52 #include "empathy-ui-utils.h"
  53 #include "empathy-smiley-manager.h"
  54
  55 #define DEBUG_DOMAIN "ChatView"
  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         EmpathyChatViewBlock last_block_type;
  73
  74         gboolean       allow_scrolling;
  75         guint          scroll_timeout;
  76         GTimer        *scroll_time;
  77         gboolean       is_group_chat;
  78
  79         GtkTextMark   *find_mark_previous;
  80         GtkTextMark   *find_mark_next;
  81         gboolean       find_wrapped;
  82         gboolean       find_last_direction;
  83
  84         /* This is for the group chat so we know if the "other" last contact
  85          * changed, so we know whether to insert a header or not.
  86          */
  87         EmpathyContact *last_contact;
  88
  89         guint          notify_system_fonts_id;
  90         guint          notify_show_avatars_id;
  91 };
  92
  93 static void     empathy_chat_view_class_init          (EmpathyChatViewClass      *klass);
  94 static void     empathy_chat_view_init                (EmpathyChatView           *view);
  95 static void     chat_view_finalize                   (GObject                  *object);
  96 static gboolean chat_view_drag_motion                (GtkWidget                *widget,
  97                                                       GdkDragContext           *context,
  98                                                       gint                      x,
  99                                                       gint                      y,
 100                                                       guint                     time);
 101 static void     chat_view_size_allocate              (GtkWidget                *widget,
 102                                                       GtkAllocation            *alloc);
 103 static void     chat_view_setup_tags                 (EmpathyChatView           *view);
 104 static void     chat_view_system_font_update         (EmpathyChatView           *view);
 105 static void     chat_view_notify_system_font_cb      (EmpathyConf               *conf,
 106                                                       const gchar              *key,
 107                                                       gpointer                  user_data);
 108 static void     chat_view_notify_show_avatars_cb     (EmpathyConf               *conf,
 109                                                       const gchar              *key,
 110                                                       gpointer                  user_data);
 111 static void     chat_view_populate_popup             (EmpathyChatView           *view,
 112                                                       GtkMenu                  *menu,
 113                                                       gpointer                  user_data);
 114 static gboolean chat_view_event_cb                   (EmpathyChatView           *view,
 115                                                       GdkEventMotion           *event,
 116                                                       GtkTextTag               *tag);
 117 static gboolean chat_view_url_event_cb               (GtkTextTag               *tag,
 118                                                       GObject                  *object,
 119                                                       GdkEvent                 *event,
 120                                                       GtkTextIter              *iter,
 121                                                       GtkTextBuffer            *buffer);
 122 static void     chat_view_open_address_cb            (GtkMenuItem              *menuitem,
 123                                                       const gchar              *url);
 124 static void     chat_view_copy_address_cb            (GtkMenuItem              *menuitem,
 125                                                       const gchar              *url);
 126 static void     chat_view_clear_view_cb              (GtkMenuItem              *menuitem,
 127                                                       EmpathyChatView           *view);
 128 static gboolean chat_view_is_scrolled_down           (EmpathyChatView           *view);
 129 static void     chat_view_theme_changed_cb           (EmpathyThemeManager       *manager,
 130                                                       EmpathyChatView           *view);
 131 static void     chat_view_theme_notify_cb            (EmpathyTheme              *theme,
 132                                                       GParamSpec                *param,
 133                                                       EmpathyChatView           *view);
 134
 135 G_DEFINE_TYPE (EmpathyChatView, empathy_chat_view, GTK_TYPE_TEXT_VIEW);
 136
 137 static void
 138 empathy_chat_view_class_init (EmpathyChatViewClass *klass)
 139 {
 140         GObjectClass   *object_class = G_OBJECT_CLASS (klass);
 141         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 142
 143         object_class->finalize = chat_view_finalize;
 144         widget_class->size_allocate = chat_view_size_allocate;
 145         widget_class->drag_motion = chat_view_drag_motion;
 146
 147         g_type_class_add_private (object_class, sizeof (EmpathyChatViewPriv));
 148 }
 149
 150 static void
 151 empathy_chat_view_init (EmpathyChatView *view)
 152 {
 153         EmpathyChatViewPriv *priv;
 154         gboolean            show_avatars;
 155
 156         priv = GET_PRIV (view);
 157
 158         priv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 159
 160         priv->last_block_type = EMPATHY_CHAT_VIEW_BLOCK_NONE;
 161         priv->last_timestamp = 0;
 162
 163         priv->allow_scrolling = TRUE;
 164
 165         priv->is_group_chat = FALSE;
 166
 167         g_object_set (view,
 168                       "wrap-mode", GTK_WRAP_WORD_CHAR,
 169                       "editable", FALSE,
 170                       "cursor-visible", FALSE,
 171                       NULL);
 172
 173         priv->notify_system_fonts_id =
 174                 empathy_conf_notify_add (empathy_conf_get (),
 175                                          "/desktop/gnome/interface/document_font_name",
 176                                          chat_view_notify_system_font_cb,
 177                                          view);
 178         chat_view_system_font_update (view);
 179
 180         priv->notify_show_avatars_id =
 181                 empathy_conf_notify_add (empathy_conf_get (),
 182                                          EMPATHY_PREFS_UI_SHOW_AVATARS,
 183                                          chat_view_notify_show_avatars_cb,
 184                                          view);
 185
 186         chat_view_setup_tags (view);
 187
 188         empathy_theme_manager_apply_saved (empathy_theme_manager_get (), view);
 189
 190         show_avatars = FALSE;
 191         empathy_conf_get_bool (empathy_conf_get (),
 192                                EMPATHY_PREFS_UI_SHOW_AVATARS,
 193                                &show_avatars);
 194
 195         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 196
 197         g_signal_connect (view,
 198                           "populate-popup",
 199                           G_CALLBACK (chat_view_populate_popup),
 200                           NULL);
 201
 202         g_signal_connect_object (empathy_theme_manager_get (),
 203                                  "theme-changed",
 204                                  G_CALLBACK (chat_view_theme_changed_cb),
 205                                  view,
 206                                  0);
 207 }
 208
 209 static void
 210 chat_view_finalize (GObject *object)
 211 {
 212         EmpathyChatView     *view;
 213         EmpathyChatViewPriv *priv;
 214
 215         view = EMPATHY_CHAT_VIEW (object);
 216         priv = GET_PRIV (view);
 217
 218         empathy_debug (DEBUG_DOMAIN, "finalize: %p", object);
 219
 220         empathy_conf_notify_remove (empathy_conf_get (), priv->notify_system_fonts_id);
 221         empathy_conf_notify_remove (empathy_conf_get (), priv->notify_show_avatars_id);
 222
 223         if (priv->last_contact) {
 224                 g_object_unref (priv->last_contact);
 225         }
 226         if (priv->scroll_time) {
 227                 g_timer_destroy (priv->scroll_time);
 228         }
 229         if (priv->scroll_timeout) {
 230                 g_source_remove (priv->scroll_timeout);
 231         }
 232
 233         if (priv->theme) {
 234                 g_signal_handlers_disconnect_by_func (priv->theme,
 235                                                       chat_view_theme_notify_cb,
 236                                                       view);
 237                 g_object_unref (priv->theme);
 238         }
 239
 240         G_OBJECT_CLASS (empathy_chat_view_parent_class)->finalize (object);
 241 }
 242
 243 static gboolean
 244 chat_view_drag_motion (GtkWidget        *widget,
 245                        GdkDragContext   *context,
 246                        gint              x,
 247                        gint              y,
 248                        guint             time)
 249 {
 250         /* Don't handle drag motion, since we don't want the view to scroll as
 251          * the result of dragging something across it.
 252          */
 253
 254         return FALSE;
 255 }
 256
 257 static void
 258 chat_view_size_allocate (GtkWidget     *widget,
 259                          GtkAllocation *alloc)
 260 {
 261         gboolean down;
 262
 263         down = chat_view_is_scrolled_down (EMPATHY_CHAT_VIEW (widget));
 264
 265         GTK_WIDGET_CLASS (empathy_chat_view_parent_class)->size_allocate (widget, alloc);
 266
 267         if (down) {
 268                 GtkAdjustment *adj;
 269
 270                 adj = GTK_TEXT_VIEW (widget)->vadjustment;
 271                 gtk_adjustment_set_value (adj, adj->upper - adj->page_size);
 272         }
 273 }
 274
 275 static void
 276 chat_view_setup_tags (EmpathyChatView *view)
 277 {
 278         EmpathyChatViewPriv *priv;
 279         GtkTextTag         *tag;
 280
 281         priv = GET_PRIV (view);
 282
 283         gtk_text_buffer_create_tag (priv->buffer,
 284                                     "cut",
 285                                     NULL);
 286
 287         /* FIXME: Move to the theme and come up with something that looks a bit
 288          * nicer.
 289          */
 290         gtk_text_buffer_create_tag (priv->buffer,
 291                                     "highlight",
 292                                     "background", "yellow",
 293                                     NULL);
 294
 295         tag = gtk_text_buffer_create_tag (priv->buffer,
 296                                           "link",
 297                                           NULL);
 298
 299         g_signal_connect (tag,
 300                           "event",
 301                           G_CALLBACK (chat_view_url_event_cb),
 302                           priv->buffer);
 303
 304         g_signal_connect (view,
 305                           "motion-notify-event",
 306                           G_CALLBACK (chat_view_event_cb),
 307                           tag);
 308 }
 309
 310 static void
 311 chat_view_system_font_update (EmpathyChatView *view)
 312 {
 313         PangoFontDescription *font_description = NULL;
 314         gchar                *font_name;
 315
 316         if (empathy_conf_get_string (empathy_conf_get (),
 317                                      "/desktop/gnome/interface/document_font_name",
 318                                      &font_name) && font_name) {
 319                 font_description = pango_font_description_from_string (font_name);
 320                 g_free (font_name);
 321         } else {
 322                 font_description = NULL;
 323         }
 324
 325         gtk_widget_modify_font (GTK_WIDGET (view), font_description);
 326
 327         if (font_description) {
 328                 pango_font_description_free (font_description);
 329         }
 330 }
 331
 332 static void
 333 chat_view_notify_system_font_cb (EmpathyConf  *conf,
 334                                  const gchar *key,
 335                                  gpointer     user_data)
 336 {
 337         EmpathyChatView *view;
 338         EmpathyChatViewPriv *priv;
 339         gboolean        show_avatars = FALSE;
 340
 341         view = user_data;
 342         priv = GET_PRIV (view);
 343
 344         chat_view_system_font_update (view);
 345
 346         /* Ugly, again, to adjust the vertical position of the nick... Will fix
 347          * this when reworking the theme manager so that view register
 348          * themselves with it instead of the other way around.
 349          */
 350         empathy_conf_get_bool (conf,
 351                                EMPATHY_PREFS_UI_SHOW_AVATARS,
 352                                &show_avatars);
 353
 354         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 355 }
 356
 357 static void
 358 chat_view_notify_show_avatars_cb (EmpathyConf  *conf,
 359                                   const gchar *key,
 360                                   gpointer     user_data)
 361 {
 362         EmpathyChatView     *view;
 363         EmpathyChatViewPriv *priv;
 364         gboolean            show_avatars = FALSE;
 365
 366         view = user_data;
 367         priv = GET_PRIV (view);
 368
 369         empathy_conf_get_bool (conf, key, &show_avatars);
 370
 371         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 372 }
 373
 374 static void
 375 chat_view_populate_popup (EmpathyChatView *view,
 376                           GtkMenu        *menu,
 377                           gpointer        user_data)
 378 {
 379         EmpathyChatViewPriv *priv;
 380         GtkTextTagTable    *table;
 381         GtkTextTag         *tag;
 382         gint                x, y;
 383         GtkTextIter         iter, start, end;
 384         GtkWidget          *item;
 385         gchar              *str = NULL;
 386
 387         priv = GET_PRIV (view);
 388
 389         /* Clear menu item */
 390         if (gtk_text_buffer_get_char_count (priv->buffer) > 0) {
 391                 item = gtk_menu_item_new ();
 392                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 393                 gtk_widget_show (item);
 394
 395                 item = gtk_image_menu_item_new_from_stock (GTK_STOCK_CLEAR, NULL);
 396                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 397                 gtk_widget_show (item);
 398
 399                 g_signal_connect (item,
 400                                   "activate",
 401                                   G_CALLBACK (chat_view_clear_view_cb),
 402                                   view);
 403         }
 404
 405         /* Link context menu items */
 406         table = gtk_text_buffer_get_tag_table (priv->buffer);
 407         tag = gtk_text_tag_table_lookup (table, "link");
 408
 409         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
 410
 411         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
 412                                                GTK_TEXT_WINDOW_WIDGET,
 413                                                x, y,
 414                                                &x, &y);
 415
 416         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
 417
 418         start = end = iter;
 419
 420         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 421             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 422                 str = gtk_text_buffer_get_text (priv->buffer,
 423                                                 &start, &end, FALSE);
 424         }
 425
 426         if (G_STR_EMPTY (str)) {
 427                 g_free (str);
 428                 return;
 429         }
 430
 431         /* NOTE: Set data just to get the string freed when not needed. */
 432         g_object_set_data_full (G_OBJECT (menu),
 433                                 "url", str,
 434                                 (GDestroyNotify) g_free);
 435
 436         item = gtk_menu_item_new ();
 437         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 438         gtk_widget_show (item);
 439
 440         item = gtk_menu_item_new_with_mnemonic (_("_Copy Link Address"));
 441         g_signal_connect (item,
 442                           "activate",
 443                           G_CALLBACK (chat_view_copy_address_cb),
 444                           str);
 445         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 446         gtk_widget_show (item);
 447
 448         item = gtk_menu_item_new_with_mnemonic (_("_Open Link"));
 449         g_signal_connect (item,
 450                           "activate",
 451                           G_CALLBACK (chat_view_open_address_cb),
 452                           str);
 453         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 454         gtk_widget_show (item);
 455 }
 456
 457 static gboolean
 458 chat_view_event_cb (EmpathyChatView *view,
 459                     GdkEventMotion *event,
 460                     GtkTextTag     *tag)
 461 {
 462         static GdkCursor  *hand = NULL;
 463         static GdkCursor  *beam = NULL;
 464         GtkTextWindowType  type;
 465         GtkTextIter        iter;
 466         GdkWindow         *win;
 467         gint               x, y, buf_x, buf_y;
 468
 469         type = gtk_text_view_get_window_type (GTK_TEXT_VIEW (view),
 470                                               event->window);
 471
 472         if (type != GTK_TEXT_WINDOW_TEXT) {
 473                 return FALSE;
 474         }
 475
 476         /* Get where the pointer really is. */
 477         win = gtk_text_view_get_window (GTK_TEXT_VIEW (view), type);
 478         if (!win) {
 479                 return FALSE;
 480         }
 481
 482         gdk_window_get_pointer (win, &x, &y, NULL);
 483
 484         /* Get the iter where the cursor is at */
 485         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view), type,
 486                                                x, y,
 487                                                &buf_x, &buf_y);
 488
 489         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view),
 490                                             &iter,
 491                                             buf_x, buf_y);
 492
 493         if (gtk_text_iter_has_tag (&iter, tag)) {
 494                 if (!hand) {
 495                         hand = gdk_cursor_new (GDK_HAND2);
 496                         beam = gdk_cursor_new (GDK_XTERM);
 497                 }
 498                 gdk_window_set_cursor (win, hand);
 499         } else {
 500                 if (!beam) {
 501                         beam = gdk_cursor_new (GDK_XTERM);
 502                 }
 503                 gdk_window_set_cursor (win, beam);
 504         }
 505
 506         return FALSE;
 507 }
 508
 509 static gboolean
 510 chat_view_url_event_cb (GtkTextTag    *tag,
 511                         GObject       *object,
 512                         GdkEvent      *event,
 513                         GtkTextIter   *iter,
 514                         GtkTextBuffer *buffer)
 515 {
 516         GtkTextIter  start, end;
 517         gchar       *str;
 518
 519         /* If the link is being selected, don't do anything. */
 520         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 521         if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end)) {
 522                 return FALSE;
 523         }
 524
 525         if (event->type == GDK_BUTTON_RELEASE && event->button.button == 1) {
 526                 start = end = *iter;
 527
 528                 if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 529                     gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 530                         str = gtk_text_buffer_get_text (buffer,
 531                                                         &start,
 532                                                         &end,
 533                                                         FALSE);
 534
 535                         empathy_url_show (str);
 536                         g_free (str);
 537                 }
 538         }
 539
 540         return FALSE;
 541 }
 542
 543 static void
 544 chat_view_open_address_cb (GtkMenuItem *menuitem, const gchar *url)
 545 {
 546         empathy_url_show (url);
 547 }
 548
 549 static void
 550 chat_view_copy_address_cb (GtkMenuItem *menuitem, const gchar *url)
 551 {
 552         GtkClipboard *clipboard;
 553
 554         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
 555         gtk_clipboard_set_text (clipboard, url, -1);
 556
 557         clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
 558         gtk_clipboard_set_text (clipboard, url, -1);
 559 }
 560
 561 static void
 562 chat_view_clear_view_cb (GtkMenuItem *menuitem, EmpathyChatView *view)
 563 {
 564         empathy_chat_view_clear (view);
 565 }
 566
 567 static gboolean
 568 chat_view_is_scrolled_down (EmpathyChatView *view)
 569 {
 570         GtkWidget *sw;
 571
 572         sw = gtk_widget_get_parent (GTK_WIDGET (view));
 573         if (GTK_IS_SCROLLED_WINDOW (sw)) {
 574                 GtkAdjustment *vadj;
 575
 576                 vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (sw));
 577
 578                 if (vadj->value + vadj->page_size / 2 < vadj->upper - vadj->page_size) {
 579                         return FALSE;
 580                 }
 581         }
 582
 583         return TRUE;
 584 }
 585
 586 static void
 587 chat_view_maybe_trim_buffer (EmpathyChatView *view)
 588 {
 589         EmpathyChatViewPriv *priv;
 590         GtkTextIter         top, bottom;
 591         gint                line;
 592         gint                remove;
 593         GtkTextTagTable    *table;
 594         GtkTextTag         *tag;
 595
 596         priv = GET_PRIV (view);
 597
 598         gtk_text_buffer_get_end_iter (priv->buffer, &bottom);
 599         line = gtk_text_iter_get_line (&bottom);
 600         if (line < MAX_LINES) {
 601                 return;
 602         }
 603
 604         remove = line - MAX_LINES;
 605         gtk_text_buffer_get_start_iter (priv->buffer, &top);
 606
 607         bottom = top;
 608         if (!gtk_text_iter_forward_lines (&bottom, remove)) {
 609                 return;
 610         }
 611
 612         /* Track backwords to a place where we can safely cut, we don't do it in
 613          * the middle of a tag.
 614          */
 615         table = gtk_text_buffer_get_tag_table (priv->buffer);
 616         tag = gtk_text_tag_table_lookup (table, "cut");
 617         if (!tag) {
 618                 return;
 619         }
 620
 621         if (!gtk_text_iter_forward_to_tag_toggle (&bottom, tag)) {
 622                 return;
 623         }
 624
 625         if (!gtk_text_iter_equal (&top, &bottom)) {
 626                 gtk_text_buffer_delete (priv->buffer, &top, &bottom);
 627         }
 628 }
 629
 630 static void
 631 chat_view_theme_changed_cb (EmpathyThemeManager *manager,
 632                             EmpathyChatView     *view)
 633 {
 634         EmpathyChatViewPriv *priv;
 635         gboolean            show_avatars = FALSE;
 636         gboolean            theme_rooms = FALSE;
 637
 638         priv = GET_PRIV (view);
 639
 640         priv->last_block_type = EMPATHY_CHAT_VIEW_BLOCK_NONE;
 641
 642         empathy_conf_get_bool (empathy_conf_get (),
 643                               EMPATHY_PREFS_CHAT_THEME_CHAT_ROOM,
 644                               &theme_rooms);
 645         if (!theme_rooms && priv->is_group_chat) {
 646                 empathy_theme_manager_apply (manager, view, NULL);
 647         } else {
 648                 empathy_theme_manager_apply_saved (manager, view);
 649         }
 650
 651         /* Needed for now to update the "rise" property of the names to get it
 652          * vertically centered.
 653          */
 654         empathy_conf_get_bool (empathy_conf_get (),
 655                                EMPATHY_PREFS_UI_SHOW_AVATARS,
 656                                &show_avatars);
 657         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 658 }
 659
 660 /* Pads a pixbuf to the specified size, by centering it in a larger transparent
 661  * pixbuf. Returns a new ref.
 662  */
 663 static GdkPixbuf *
 664 chat_view_pad_to_size (GdkPixbuf *pixbuf,
 665                        gint       width,
 666                        gint       height,
 667                        gint       extra_padding_right)
 668 {
 669         gint       src_width, src_height;
 670         GdkPixbuf *padded;
 671         gint       x_offset, y_offset;
 672
 673         src_width = gdk_pixbuf_get_width (pixbuf);
 674         src_height = gdk_pixbuf_get_height (pixbuf);
 675
 676         x_offset = (width - src_width) / 2;
 677         y_offset = (height - src_height) / 2;
 678
 679         padded = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (pixbuf),
 680                                  TRUE, /* alpha */
 681                                  gdk_pixbuf_get_bits_per_sample (pixbuf),
 682                                  width + extra_padding_right,
 683                                  height);
 684
 685         gdk_pixbuf_fill (padded, 0);
 686
 687         gdk_pixbuf_copy_area (pixbuf,
 688                               0, /* source coords */
 689                               0,
 690                               src_width,
 691                               src_height,
 692                               padded,
 693                               x_offset, /* dest coords */
 694                               y_offset);
 695
 696         return padded;
 697 }
 698
 699 typedef struct {
 700         GdkPixbuf *pixbuf;
 701         gchar     *token;
 702 } AvatarData;
 703
 704 static void
 705 chat_view_avatar_cache_data_free (gpointer ptr)
 706 {
 707         AvatarData *data = ptr;
 708
 709         g_object_unref (data->pixbuf);
 710         g_free (data->token);
 711         g_slice_free (AvatarData, data);
 712 }
 713
 714 GdkPixbuf *
 715 empathy_chat_view_get_avatar_pixbuf_with_cache (EmpathyContact *contact)
 716 {
 717         AvatarData        *data;
 718         EmpathyAvatar     *avatar;
 719         GdkPixbuf         *tmp_pixbuf;
 720         GdkPixbuf         *pixbuf = NULL;
 721
 722         /* Check if avatar is in cache and if it's up to date */
 723         avatar = empathy_contact_get_avatar (contact);
 724         data = g_object_get_data (G_OBJECT (contact), "chat-view-avatar-cache");
 725         if (data) {
 726                 if (avatar && !tp_strdiff (avatar->token, data->token)) {
 727                         /* We have the avatar in cache */
 728                         return data->pixbuf;
 729                 }
 730         }
 731
 732         /* Avatar not in cache, create pixbuf */
 733         tmp_pixbuf = empathy_pixbuf_avatar_from_contact_scaled (contact, 32, 32);
 734         if (tmp_pixbuf) {
 735                 pixbuf = chat_view_pad_to_size (tmp_pixbuf, 32, 32, 6);
 736                 g_object_unref (tmp_pixbuf);
 737         }
 738         if (!pixbuf) {
 739                 return NULL;
 740         }
 741
 742         /* Insert new pixbuf in cache */
 743         data = g_slice_new0 (AvatarData);
 744         data->token = g_strdup (avatar->token);
 745         data->pixbuf = pixbuf;
 746
 747         g_object_set_data_full (G_OBJECT (contact), "chat-view-avatar-cache",
 748                                 data, chat_view_avatar_cache_data_free);
 749
 750         return data->pixbuf;
 751 }
 752
 753 EmpathyChatView *
 754 empathy_chat_view_new (void)
 755 {
 756         return g_object_new (EMPATHY_TYPE_CHAT_VIEW, NULL);
 757 }
 758
 759 void
 760 empathy_chat_view_append_message (EmpathyChatView *view,
 761                                   EmpathyMessage  *msg)
 762 {
 763         EmpathyChatViewPriv *priv = GET_PRIV (view);
 764         EmpathyContact      *sender;
 765         gboolean             bottom;
 766         gboolean             from_self;
 767
 768         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 769         g_return_if_fail (EMPATHY_IS_MESSAGE (msg));
 770
 771         if (!empathy_message_get_body (msg)) {
 772                 return;
 773         }
 774
 775         bottom = chat_view_is_scrolled_down (view);
 776         sender = empathy_message_get_sender (msg);
 777         from_self = empathy_contact_is_user (sender);
 778
 779         chat_view_maybe_trim_buffer (view);
 780
 781         empathy_theme_append_message (priv->theme, view, msg);
 782
 783         if (bottom) {
 784                 empathy_chat_view_scroll_down (view);
 785         }
 786 }
 787
 788 void
 789 empathy_chat_view_append_event (EmpathyChatView *view,
 790                                const gchar    *str)
 791 {
 792         EmpathyChatViewPriv *priv;
 793         gboolean            bottom;
 794
 795         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 796         g_return_if_fail (!G_STR_EMPTY (str));
 797
 798         priv = GET_PRIV (view);
 799
 800         bottom = chat_view_is_scrolled_down (view);
 801
 802         chat_view_maybe_trim_buffer (view);
 803
 804         empathy_theme_append_event (priv->theme, view, str);
 805
 806         if (bottom) {
 807                 empathy_chat_view_scroll_down (view);
 808         }
 809
 810         priv->last_block_type = EMPATHY_CHAT_VIEW_BLOCK_EVENT;
 811 }
 812
 813 void
 814 empathy_chat_view_append_button (EmpathyChatView *view,
 815                                 const gchar    *message,
 816                                 GtkWidget      *button1,
 817                                 GtkWidget      *button2)
 818 {
 819         EmpathyChatViewPriv   *priv;
 820         GtkTextChildAnchor   *anchor;
 821         GtkTextIter           iter;
 822         gboolean              bottom;
 823         const gchar          *tag;
 824
 825         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 826         g_return_if_fail (button1 != NULL);
 827
 828         priv = GET_PRIV (view);
 829
 830         tag = "invite";
 831
 832         bottom = chat_view_is_scrolled_down (view);
 833
 834         empathy_theme_append_timestamp (priv->theme, view, NULL, TRUE, TRUE);
 835
 836         if (message) {
 837                 empathy_theme_append_text (priv->theme, view, message, tag, NULL);
 838         }
 839
 840         gtk_text_buffer_get_end_iter (priv->buffer, &iter);
 841
 842         anchor = gtk_text_buffer_create_child_anchor (priv->buffer, &iter);
 843         gtk_text_view_add_child_at_anchor (GTK_TEXT_VIEW (view), button1, anchor);
 844         gtk_widget_show (button1);
 845
 846         gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
 847                                                   &iter,
 848                                                   " ",
 849                                                   1,
 850                                                   tag,
 851                                                   NULL);
 852
 853         if (button2) {
 854                 gtk_text_buffer_get_end_iter (priv->buffer, &iter);
 855
 856                 anchor = gtk_text_buffer_create_child_anchor (priv->buffer, &iter);
 857                 gtk_text_view_add_child_at_anchor (GTK_TEXT_VIEW (view), button2, anchor);
 858                 gtk_widget_show (button2);
 859
 860                 gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
 861                                                           &iter,
 862                                                           " ",
 863                                                           1,
 864                                                           tag,
 865                                                           NULL);
 866         }
 867
 868         gtk_text_buffer_get_end_iter (priv->buffer, &iter);
 869         gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
 870                                                   &iter,
 871                                                   "\n\n",
 872                                                   2,
 873                                                   tag,
 874                                                   NULL);
 875
 876         if (bottom) {
 877                 empathy_chat_view_scroll_down (view);
 878         }
 879
 880         priv->last_block_type = EMPATHY_CHAT_VIEW_BLOCK_INVITE;
 881 }
 882
 883 void
 884 empathy_chat_view_scroll (EmpathyChatView *view,
 885                          gboolean        allow_scrolling)
 886 {
 887         EmpathyChatViewPriv *priv;
 888
 889         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 890
 891         priv = GET_PRIV (view);
 892
 893         priv->allow_scrolling = allow_scrolling;
 894
 895         empathy_debug (DEBUG_DOMAIN, "Scrolling %s",
 896                       allow_scrolling ? "enabled" : "disabled");
 897 }
 898
 899 /* Code stolen from pidgin/gtkimhtml.c */
 900 static gboolean
 901 chat_view_scroll_cb (EmpathyChatView *view)
 902 {
 903         EmpathyChatViewPriv *priv;
 904         GtkAdjustment      *adj;
 905         gdouble             max_val;
 906
 907         priv = GET_PRIV (view);
 908         adj = GTK_TEXT_VIEW (view)->vadjustment;
 909         max_val = adj->upper - adj->page_size;
 910
 911         g_return_val_if_fail (priv->scroll_time != NULL, FALSE);
 912
 913         if (g_timer_elapsed (priv->scroll_time, NULL) > MAX_SCROLL_TIME) {
 914                 /* time's up. jump to the end and kill the timer */
 915                 gtk_adjustment_set_value (adj, max_val);
 916                 g_timer_destroy (priv->scroll_time);
 917                 priv->scroll_time = NULL;
 918                 priv->scroll_timeout = 0;
 919                 return FALSE;
 920         }
 921
 922         /* scroll by 1/3rd the remaining distance */
 923         gtk_adjustment_set_value (adj, gtk_adjustment_get_value (adj) + ((max_val - gtk_adjustment_get_value (adj)) / 3));
 924         return TRUE;
 925 }
 926
 927 void
 928 empathy_chat_view_scroll_down (EmpathyChatView *view)
 929 {
 930         EmpathyChatViewPriv *priv;
 931
 932         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 933
 934         priv = GET_PRIV (view);
 935
 936         if (!priv->allow_scrolling) {
 937                 return;
 938         }
 939
 940         empathy_debug (DEBUG_DOMAIN, "Scrolling down");
 941
 942         if (priv->scroll_time) {
 943                 g_timer_reset (priv->scroll_time);
 944         } else {
 945                 priv->scroll_time = g_timer_new();
 946         }
 947         if (!priv->scroll_timeout) {
 948                 priv->scroll_timeout = g_timeout_add (SCROLL_DELAY,
 949                                                       (GSourceFunc) chat_view_scroll_cb,
 950                                                       view);
 951         }
 952 }
 953
 954 gboolean
 955 empathy_chat_view_get_selection_bounds (EmpathyChatView *view,
 956                                        GtkTextIter    *start,
 957                                        GtkTextIter    *end)
 958 {
 959         GtkTextBuffer *buffer;
 960
 961         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
 962
 963         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 964
 965         return gtk_text_buffer_get_selection_bounds (buffer, start, end);
 966 }
 967
 968 void
 969 empathy_chat_view_clear (EmpathyChatView *view)
 970 {
 971         GtkTextBuffer      *buffer;
 972         EmpathyChatViewPriv *priv;
 973
 974         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 975
 976         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 977         gtk_text_buffer_set_text (buffer, "", -1);
 978
 979         /* We set these back to the initial values so we get
 980          * timestamps when clearing the window to know when
 981          * conversations start.
 982          */
 983         priv = GET_PRIV (view);
 984
 985         priv->last_block_type = EMPATHY_CHAT_VIEW_BLOCK_NONE;
 986         priv->last_timestamp = 0;
 987 }
 988
 989 gboolean
 990 empathy_chat_view_find_previous (EmpathyChatView *view,
 991                                 const gchar    *search_criteria,
 992                                 gboolean        new_search)
 993 {
 994         EmpathyChatViewPriv *priv;
 995         GtkTextBuffer      *buffer;
 996         GtkTextIter         iter_at_mark;
 997         GtkTextIter         iter_match_start;
 998         GtkTextIter         iter_match_end;
 999         gboolean            found;
1000         gboolean            from_start = FALSE;
1001
1002         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
1003         g_return_val_if_fail (search_criteria != NULL, FALSE);
1004
1005         priv = GET_PRIV (view);
1006
1007         buffer = priv->buffer;
1008
1009         if (G_STR_EMPTY (search_criteria)) {
1010                 if (priv->find_mark_previous) {
1011                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1012
1013                         gtk_text_buffer_move_mark (buffer,
1014                                                    priv->find_mark_previous,
1015                                                    &iter_at_mark);
1016                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1017                                                       priv->find_mark_previous,
1018                                                       0.0,
1019                                                       TRUE,
1020                                                       0.0,
1021                                                       0.0);
1022                         gtk_text_buffer_select_range (buffer,
1023                                                       &iter_at_mark,
1024                                                       &iter_at_mark);
1025                 }
1026
1027                 return FALSE;
1028         }
1029
1030         if (new_search) {
1031                 from_start = TRUE;
1032         }
1033
1034         if (priv->find_mark_previous) {
1035                 gtk_text_buffer_get_iter_at_mark (buffer,
1036                                                   &iter_at_mark,
1037                                                   priv->find_mark_previous);
1038         } else {
1039                 gtk_text_buffer_get_end_iter (buffer, &iter_at_mark);
1040                 from_start = TRUE;
1041         }
1042
1043         priv->find_last_direction = FALSE;
1044
1045         found = empathy_text_iter_backward_search (&iter_at_mark,
1046                                                   search_criteria,
1047                                                   &iter_match_start,
1048                                                   &iter_match_end,
1049                                                   NULL);
1050
1051         if (!found) {
1052                 gboolean result = FALSE;
1053
1054                 if (from_start) {
1055                         return result;
1056                 }
1057
1058                 /* Here we wrap around. */
1059                 if (!new_search && !priv->find_wrapped) {
1060                         priv->find_wrapped = TRUE;
1061                         result = empathy_chat_view_find_previous (view,
1062                                                                  search_criteria,
1063                                                                  FALSE);
1064                         priv->find_wrapped = FALSE;
1065                 }
1066
1067                 return result;
1068         }
1069
1070         /* Set new mark and show on screen */
1071         if (!priv->find_mark_previous) {
1072                 priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
1073                                                                         &iter_match_start,
1074                                                                         TRUE);
1075         } else {
1076                 gtk_text_buffer_move_mark (buffer,
1077                                            priv->find_mark_previous,
1078                                            &iter_match_start);
1079         }
1080
1081         if (!priv->find_mark_next) {
1082                 priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
1083                                                                     &iter_match_end,
1084                                                                     TRUE);
1085         } else {
1086                 gtk_text_buffer_move_mark (buffer,
1087                                            priv->find_mark_next,
1088                                            &iter_match_end);
1089         }
1090
1091         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1092                                       priv->find_mark_previous,
1093                                       0.0,
1094                                       TRUE,
1095                                       0.5,
1096                                       0.5);
1097
1098         gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
1099         gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
1100
1101         return TRUE;
1102 }
1103
1104 gboolean
1105 empathy_chat_view_find_next (EmpathyChatView *view,
1106                             const gchar    *search_criteria,
1107                             gboolean        new_search)
1108 {
1109         EmpathyChatViewPriv *priv;
1110         GtkTextBuffer      *buffer;
1111         GtkTextIter         iter_at_mark;
1112         GtkTextIter         iter_match_start;
1113         GtkTextIter         iter_match_end;
1114         gboolean            found;
1115         gboolean            from_start = FALSE;
1116
1117         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
1118         g_return_val_if_fail (search_criteria != NULL, FALSE);
1119
1120         priv = GET_PRIV (view);
1121
1122         buffer = priv->buffer;
1123
1124         if (G_STR_EMPTY (search_criteria)) {
1125                 if (priv->find_mark_next) {
1126                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1127
1128                         gtk_text_buffer_move_mark (buffer,
1129                                                    priv->find_mark_next,
1130                                                    &iter_at_mark);
1131                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1132                                                       priv->find_mark_next,
1133                                                       0.0,
1134                                                       TRUE,
1135                                                       0.0,
1136                                                       0.0);
1137                         gtk_text_buffer_select_range (buffer,
1138                                                       &iter_at_mark,
1139                                                       &iter_at_mark);
1140                 }
1141
1142                 return FALSE;
1143         }
1144
1145         if (new_search) {
1146                 from_start = TRUE;
1147         }
1148
1149         if (priv->find_mark_next) {
1150                 gtk_text_buffer_get_iter_at_mark (buffer,
1151                                                   &iter_at_mark,
1152                                                   priv->find_mark_next);
1153         } else {
1154                 gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1155                 from_start = TRUE;
1156         }
1157
1158         priv->find_last_direction = TRUE;
1159
1160         found = empathy_text_iter_forward_search (&iter_at_mark,
1161                                                  search_criteria,
1162                                                  &iter_match_start,
1163                                                  &iter_match_end,
1164                                                  NULL);
1165
1166         if (!found) {
1167                 gboolean result = FALSE;
1168
1169                 if (from_start) {
1170                         return result;
1171                 }
1172
1173                 /* Here we wrap around. */
1174                 if (!new_search && !priv->find_wrapped) {
1175                         priv->find_wrapped = TRUE;
1176                         result = empathy_chat_view_find_next (view,
1177                                                              search_criteria,
1178                                                              FALSE);
1179                         priv->find_wrapped = FALSE;
1180                 }
1181
1182                 return result;
1183         }
1184
1185         /* Set new mark and show on screen */
1186         if (!priv->find_mark_next) {
1187                 priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
1188                                                                &iter_match_end,
1189                                                                TRUE);
1190         } else {
1191                 gtk_text_buffer_move_mark (buffer,
1192                                            priv->find_mark_next,
1193                                            &iter_match_end);
1194         }
1195
1196         if (!priv->find_mark_previous) {
1197                 priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
1198                                                                         &iter_match_start,
1199                                                                         TRUE);
1200         } else {
1201                 gtk_text_buffer_move_mark (buffer,
1202                                            priv->find_mark_previous,
1203                                            &iter_match_start);
1204         }
1205
1206         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1207                                       priv->find_mark_next,
1208                                       0.0,
1209                                       TRUE,
1210                                       0.5,
1211                                       0.5);
1212
1213         gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
1214         gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
1215
1216         return TRUE;
1217 }
1218
1219
1220 void
1221 empathy_chat_view_find_abilities (EmpathyChatView *view,
1222                                  const gchar    *search_criteria,
1223                                  gboolean       *can_do_previous,
1224                                  gboolean       *can_do_next)
1225 {
1226         EmpathyChatViewPriv *priv;
1227         GtkTextBuffer      *buffer;
1228         GtkTextIter         iter_at_mark;
1229         GtkTextIter         iter_match_start;
1230         GtkTextIter         iter_match_end;
1231
1232         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1233         g_return_if_fail (search_criteria != NULL);
1234         g_return_if_fail (can_do_previous != NULL && can_do_next != NULL);
1235
1236         priv = GET_PRIV (view);
1237
1238         buffer = priv->buffer;
1239
1240         if (can_do_previous) {
1241                 if (priv->find_mark_previous) {
1242                         gtk_text_buffer_get_iter_at_mark (buffer,
1243                                                           &iter_at_mark,
1244                                                           priv->find_mark_previous);
1245                 } else {
1246                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1247                 }
1248
1249                 *can_do_previous = empathy_text_iter_backward_search (&iter_at_mark,
1250                                                                      search_criteria,
1251                                                                      &iter_match_start,
1252                                                                      &iter_match_end,
1253                                                                      NULL);
1254         }
1255
1256         if (can_do_next) {
1257                 if (priv->find_mark_next) {
1258                         gtk_text_buffer_get_iter_at_mark (buffer,
1259                                                           &iter_at_mark,
1260                                                           priv->find_mark_next);
1261                 } else {
1262                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1263                 }
1264
1265                 *can_do_next = empathy_text_iter_forward_search (&iter_at_mark,
1266                                                                 search_criteria,
1267                                                                 &iter_match_start,
1268                                                                 &iter_match_end,
1269                                                                 NULL);
1270         }
1271 }
1272
1273 void
1274 empathy_chat_view_highlight (EmpathyChatView *view,
1275                              const gchar     *text)
1276 {
1277         GtkTextBuffer *buffer;
1278         GtkTextIter    iter;
1279         GtkTextIter    iter_start;
1280         GtkTextIter    iter_end;
1281         GtkTextIter    iter_match_start;
1282         GtkTextIter    iter_match_end;
1283         gboolean       found;
1284
1285         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1286
1287         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
1288
1289         gtk_text_buffer_get_start_iter (buffer, &iter);
1290
1291         gtk_text_buffer_get_bounds (buffer, &iter_start, &iter_end);
1292         gtk_text_buffer_remove_tag_by_name (buffer, "highlight",
1293                                             &iter_start,
1294                                             &iter_end);
1295
1296         if (G_STR_EMPTY (text)) {
1297                 return;
1298         }
1299
1300         while (1) {
1301                 found = empathy_text_iter_forward_search (&iter,
1302                                                          text,
1303                                                          &iter_match_start,
1304                                                          &iter_match_end,
1305                                                          NULL);
1306
1307                 if (!found) {
1308                         break;
1309                 }
1310
1311                 gtk_text_buffer_apply_tag_by_name (buffer, "highlight",
1312                                                    &iter_match_start,
1313                                                    &iter_match_end);
1314
1315                 iter = iter_match_end;
1316                 gtk_text_iter_forward_char (&iter);
1317         }
1318 }
1319
1320 void
1321 empathy_chat_view_copy_clipboard (EmpathyChatView *view)
1322 {
1323         GtkTextBuffer *buffer;
1324         GtkClipboard  *clipboard;
1325
1326         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1327
1328         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
1329         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1330
1331         gtk_text_buffer_copy_clipboard (buffer, clipboard);
1332 }
1333
1334 EmpathyTheme *
1335 empathy_chat_view_get_theme (EmpathyChatView *view)
1336 {
1337         EmpathyChatViewPriv *priv;
1338
1339         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), NULL);
1340
1341         priv = GET_PRIV (view);
1342
1343         return priv->theme;
1344 }
1345
1346 static void
1347 chat_view_theme_notify_cb (EmpathyTheme    *theme,
1348                            GParamSpec      *param,
1349                            EmpathyChatView *view)
1350 {
1351         empathy_theme_update_view (theme, view);
1352 }
1353
1354 void
1355 empathy_chat_view_set_theme (EmpathyChatView *view, EmpathyTheme *theme)
1356 {
1357         EmpathyChatViewPriv *priv;
1358
1359         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1360         g_return_if_fail (EMPATHY_IS_THEME (theme));
1361
1362         priv = GET_PRIV (view);
1363
1364         if (priv->theme) {
1365                 g_signal_handlers_disconnect_by_func (priv->theme,
1366                                                       chat_view_theme_notify_cb,
1367                                                       view);
1368                 g_object_unref (priv->theme);
1369         }
1370
1371         priv->theme = g_object_ref (theme);
1372
1373         empathy_theme_update_view (theme, view);
1374         g_signal_connect (priv->theme, "notify",
1375                           G_CALLBACK (chat_view_theme_notify_cb),
1376                           view);
1377
1378         /* FIXME: Redraw all messages using the new theme */
1379 }
1380
1381 void
1382 empathy_chat_view_set_margin (EmpathyChatView *view,
1383                              gint            margin)
1384 {
1385         EmpathyChatViewPriv *priv;
1386
1387         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1388
1389         priv = GET_PRIV (view);
1390
1391         g_object_set (view,
1392                       "left-margin", margin,
1393                       "right-margin", margin,
1394                       NULL);
1395 }
1396
1397 GtkWidget *
1398 empathy_chat_view_get_smiley_menu (GCallback    callback,
1399                                    gpointer     user_data)
1400 {
1401         EmpathySmileyManager *smiley_manager;
1402         GSList               *smileys, *l;
1403         GtkWidget            *menu;
1404         gint                  x = 0;
1405         gint                  y = 0;
1406
1407         g_return_val_if_fail (callback != NULL, NULL);
1408
1409         menu = gtk_menu_new ();
1410
1411         smiley_manager = empathy_smiley_manager_new ();
1412         smileys = empathy_smiley_manager_get_all (smiley_manager);
1413         for (l = smileys; l; l = l->next) {
1414                 EmpathySmiley *smiley;
1415                 GtkWidget     *item;
1416                 GtkWidget     *image;
1417
1418                 smiley = l->data;
1419                 image = gtk_image_new_from_pixbuf (smiley->pixbuf);
1420
1421                 item = gtk_image_menu_item_new_with_label ("");
1422                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
1423
1424                 gtk_menu_attach (GTK_MENU (menu), item,
1425                                  x, x + 1, y, y + 1);
1426
1427                 gtk_widget_set_tooltip_text (item, smiley->str);
1428
1429                 g_object_set_data  (G_OBJECT (item), "smiley_text", smiley->str);
1430                 g_signal_connect (item, "activate", callback, user_data);
1431
1432                 if (x > 3) {
1433                         y++;
1434                         x = 0;
1435                 } else {
1436                         x++;
1437                 }
1438         }
1439         g_object_unref (smiley_manager);
1440
1441         gtk_widget_show_all (menu);
1442
1443         return menu;
1444 }
1445
1446 /* FIXME: Do we really need this? Better to do it internally only at setup time,
1447  * we will never change it on the fly.
1448  */
1449 void
1450 empathy_chat_view_set_is_group_chat (EmpathyChatView *view,
1451                                     gboolean        is_group_chat)
1452 {
1453         EmpathyChatViewPriv *priv;
1454         gboolean            theme_rooms = FALSE;
1455
1456         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1457
1458         priv = GET_PRIV (view);
1459
1460         priv->is_group_chat = is_group_chat;
1461
1462         empathy_conf_get_bool (empathy_conf_get (),
1463                               EMPATHY_PREFS_CHAT_THEME_CHAT_ROOM,
1464                               &theme_rooms);
1465
1466         if (!theme_rooms && is_group_chat) {
1467                 empathy_theme_manager_apply (empathy_theme_manager_get (),
1468                                             view,
1469                                             NULL);
1470         } else {
1471                 empathy_theme_manager_apply_saved (empathy_theme_manager_get (),
1472                                                   view);
1473         }
1474 }
1475
1476 time_t
1477 empathy_chat_view_get_last_timestamp (EmpathyChatView *view)
1478 {
1479         EmpathyChatViewPriv *priv;
1480
1481         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), 0);
1482
1483         priv = GET_PRIV (view);
1484
1485         return priv->last_timestamp;
1486 }
1487
1488 void
1489 empathy_chat_view_set_last_timestamp (EmpathyChatView *view,
1490                                      time_t          timestamp)
1491 {
1492         EmpathyChatViewPriv *priv;
1493
1494         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1495
1496         priv = GET_PRIV (view);
1497
1498         priv->last_timestamp = timestamp;
1499 }
1500
1501 EmpathyChatViewBlock
1502 empathy_chat_view_get_last_block_type (EmpathyChatView *view)
1503 {
1504         EmpathyChatViewPriv *priv;
1505
1506         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), 0);
1507
1508         priv = GET_PRIV (view);
1509
1510         return priv->last_block_type;
1511 }
1512
1513 void
1514 empathy_chat_view_set_last_block_type (EmpathyChatView      *view,
1515                                        EmpathyChatViewBlock  block_type)
1516 {
1517         EmpathyChatViewPriv *priv;
1518
1519         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1520
1521         priv = GET_PRIV (view);
1522
1523         priv->last_block_type = block_type;
1524 }
1525
1526 EmpathyContact *
1527 empathy_chat_view_get_last_contact (EmpathyChatView *view)
1528 {
1529         EmpathyChatViewPriv *priv;
1530
1531         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), NULL);
1532
1533         priv = GET_PRIV (view);
1534
1535         return priv->last_contact;
1536 }
1537
1538 void
1539 empathy_chat_view_set_last_contact (EmpathyChatView *view, EmpathyContact *contact)
1540 {
1541         EmpathyChatViewPriv *priv;
1542
1543         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1544
1545         priv = GET_PRIV (view);
1546
1547         if (priv->last_contact) {
1548                 g_object_unref (priv->last_contact);
1549                 priv->last_contact = NULL;
1550         }
1551
1552         if (contact) {
1553                 priv->last_contact = g_object_ref (contact);
1554         }
1555 }
1556