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 #include <libempathy/empathy-conf.h>
  48
  49 #include "empathy-chat-view.h"
  50 #include "empathy-chat.h"
  51 #include "empathy-preferences.h"
  52 #include "empathy-theme-manager.h"
  53 #include "empathy-ui-utils.h"
  54 #include "empathy-smiley-manager.h"
  55
  56 #define DEBUG_DOMAIN "ChatView"
  57
  58 /* Number of seconds between timestamps when using normal mode, 5 minutes. */
  59 #define TIMESTAMP_INTERVAL 300
  60
  61 #define MAX_LINES 800
  62 #define MAX_SCROLL_TIME 0.4 /* seconds */
  63 #define SCROLL_DELAY 33     /* milliseconds */
  64
  65 #define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EMPATHY_TYPE_CHAT_VIEW, EmpathyChatViewPriv))
  66
  67 struct _EmpathyChatViewPriv {
  68         GtkTextBuffer *buffer;
  69
  70         EmpathyTheme   *theme;
  71
  72         time_t         last_timestamp;
  73         EmpathyChatViewBlock last_block_type;
  74
  75         gboolean       allow_scrolling;
  76         guint          scroll_timeout;
  77         GTimer        *scroll_time;
  78         gboolean       is_group_chat;
  79
  80         GtkTextMark   *find_mark_previous;
  81         GtkTextMark   *find_mark_next;
  82         gboolean       find_wrapped;
  83         gboolean       find_last_direction;
  84
  85         /* This is for the group chat so we know if the "other" last contact
  86          * changed, so we know whether to insert a header or not.
  87          */
  88         EmpathyContact *last_contact;
  89
  90         guint          notify_system_fonts_id;
  91         guint          notify_show_avatars_id;
  92 };
  93
  94 static void     empathy_chat_view_class_init          (EmpathyChatViewClass      *klass);
  95 static void     empathy_chat_view_init                (EmpathyChatView           *view);
  96 static void     chat_view_finalize                   (GObject                  *object);
  97 static gboolean chat_view_drag_motion                (GtkWidget                *widget,
  98                                                       GdkDragContext           *context,
  99                                                       gint                      x,
 100                                                       gint                      y,
 101                                                       guint                     time);
 102 static void     chat_view_size_allocate              (GtkWidget                *widget,
 103                                                       GtkAllocation            *alloc);
 104 static void     chat_view_setup_tags                 (EmpathyChatView           *view);
 105 static void     chat_view_system_font_update         (EmpathyChatView           *view);
 106 static void     chat_view_notify_system_font_cb      (EmpathyConf               *conf,
 107                                                       const gchar              *key,
 108                                                       gpointer                  user_data);
 109 static void     chat_view_notify_show_avatars_cb     (EmpathyConf               *conf,
 110                                                       const gchar              *key,
 111                                                       gpointer                  user_data);
 112 static void     chat_view_populate_popup             (EmpathyChatView           *view,
 113                                                       GtkMenu                  *menu,
 114                                                       gpointer                  user_data);
 115 static gboolean chat_view_event_cb                   (EmpathyChatView           *view,
 116                                                       GdkEventMotion           *event,
 117                                                       GtkTextTag               *tag);
 118 static gboolean chat_view_url_event_cb               (GtkTextTag               *tag,
 119                                                       GObject                  *object,
 120                                                       GdkEvent                 *event,
 121                                                       GtkTextIter              *iter,
 122                                                       GtkTextBuffer            *buffer);
 123 static void     chat_view_open_address_cb            (GtkMenuItem              *menuitem,
 124                                                       const gchar              *url);
 125 static void     chat_view_copy_address_cb            (GtkMenuItem              *menuitem,
 126                                                       const gchar              *url);
 127 static void     chat_view_clear_view_cb              (GtkMenuItem              *menuitem,
 128                                                       EmpathyChatView           *view);
 129 static gboolean chat_view_is_scrolled_down           (EmpathyChatView           *view);
 130 static void     chat_view_theme_changed_cb           (EmpathyThemeManager       *manager,
 131                                                       EmpathyChatView           *view);
 132 static void     chat_view_theme_notify_cb            (EmpathyTheme              *theme,
 133                                                       GParamSpec                *param,
 134                                                       EmpathyChatView           *view);
 135
 136 G_DEFINE_TYPE (EmpathyChatView, empathy_chat_view, GTK_TYPE_TEXT_VIEW);
 137
 138 static void
 139 empathy_chat_view_class_init (EmpathyChatViewClass *klass)
 140 {
 141         GObjectClass   *object_class = G_OBJECT_CLASS (klass);
 142         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 143
 144         object_class->finalize = chat_view_finalize;
 145         widget_class->size_allocate = chat_view_size_allocate;
 146         widget_class->drag_motion = chat_view_drag_motion;
 147
 148         g_type_class_add_private (object_class, sizeof (EmpathyChatViewPriv));
 149 }
 150
 151 static void
 152 empathy_chat_view_init (EmpathyChatView *view)
 153 {
 154         EmpathyChatViewPriv *priv;
 155         gboolean            show_avatars;
 156
 157         priv = GET_PRIV (view);
 158
 159         priv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 160
 161         priv->last_block_type = EMPATHY_CHAT_VIEW_BLOCK_NONE;
 162         priv->last_timestamp = 0;
 163
 164         priv->allow_scrolling = TRUE;
 165
 166         priv->is_group_chat = FALSE;
 167
 168         g_object_set (view,
 169                       "wrap-mode", GTK_WRAP_WORD_CHAR,
 170                       "editable", FALSE,
 171                       "cursor-visible", FALSE,
 172                       NULL);
 173
 174         priv->notify_system_fonts_id =
 175                 empathy_conf_notify_add (empathy_conf_get (),
 176                                          "/desktop/gnome/interface/document_font_name",
 177                                          chat_view_notify_system_font_cb,
 178                                          view);
 179         chat_view_system_font_update (view);
 180
 181         priv->notify_show_avatars_id =
 182                 empathy_conf_notify_add (empathy_conf_get (),
 183                                          EMPATHY_PREFS_UI_SHOW_AVATARS,
 184                                          chat_view_notify_show_avatars_cb,
 185                                          view);
 186
 187         chat_view_setup_tags (view);
 188
 189         empathy_theme_manager_apply_saved (empathy_theme_manager_get (), view);
 190
 191         show_avatars = FALSE;
 192         empathy_conf_get_bool (empathy_conf_get (),
 193                                EMPATHY_PREFS_UI_SHOW_AVATARS,
 194                                &show_avatars);
 195
 196         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 197
 198         g_signal_connect (view,
 199                           "populate-popup",
 200                           G_CALLBACK (chat_view_populate_popup),
 201                           NULL);
 202
 203         g_signal_connect_object (empathy_theme_manager_get (),
 204                                  "theme-changed",
 205                                  G_CALLBACK (chat_view_theme_changed_cb),
 206                                  view,
 207                                  0);
 208 }
 209
 210 static void
 211 chat_view_finalize (GObject *object)
 212 {
 213         EmpathyChatView     *view;
 214         EmpathyChatViewPriv *priv;
 215
 216         view = EMPATHY_CHAT_VIEW (object);
 217         priv = GET_PRIV (view);
 218
 219         empathy_debug (DEBUG_DOMAIN, "finalize: %p", object);
 220
 221         empathy_conf_notify_remove (empathy_conf_get (), priv->notify_system_fonts_id);
 222         empathy_conf_notify_remove (empathy_conf_get (), priv->notify_show_avatars_id);
 223
 224         if (priv->last_contact) {
 225                 g_object_unref (priv->last_contact);
 226         }
 227         if (priv->scroll_time) {
 228                 g_timer_destroy (priv->scroll_time);
 229         }
 230         if (priv->scroll_timeout) {
 231                 g_source_remove (priv->scroll_timeout);
 232         }
 233
 234         if (priv->theme) {
 235                 g_signal_handlers_disconnect_by_func (priv->theme,
 236                                                       chat_view_theme_notify_cb,
 237                                                       view);
 238                 g_object_unref (priv->theme);
 239         }
 240
 241         G_OBJECT_CLASS (empathy_chat_view_parent_class)->finalize (object);
 242 }
 243
 244 static gboolean
 245 chat_view_drag_motion (GtkWidget        *widget,
 246                        GdkDragContext   *context,
 247                        gint              x,
 248                        gint              y,
 249                        guint             time)
 250 {
 251         /* Don't handle drag motion, since we don't want the view to scroll as
 252          * the result of dragging something across it.
 253          */
 254
 255         return FALSE;
 256 }
 257
 258 static void
 259 chat_view_size_allocate (GtkWidget     *widget,
 260                          GtkAllocation *alloc)
 261 {
 262         gboolean down;
 263
 264         down = chat_view_is_scrolled_down (EMPATHY_CHAT_VIEW (widget));
 265
 266         GTK_WIDGET_CLASS (empathy_chat_view_parent_class)->size_allocate (widget, alloc);
 267
 268         if (down) {
 269                 GtkAdjustment *adj;
 270
 271                 adj = GTK_TEXT_VIEW (widget)->vadjustment;
 272                 gtk_adjustment_set_value (adj, adj->upper - adj->page_size);
 273         }
 274 }
 275
 276 static void
 277 chat_view_setup_tags (EmpathyChatView *view)
 278 {
 279         EmpathyChatViewPriv *priv;
 280         GtkTextTag         *tag;
 281
 282         priv = GET_PRIV (view);
 283
 284         gtk_text_buffer_create_tag (priv->buffer,
 285                                     "cut",
 286                                     NULL);
 287
 288         /* FIXME: Move to the theme and come up with something that looks a bit
 289          * nicer.
 290          */
 291         gtk_text_buffer_create_tag (priv->buffer,
 292                                     "highlight",
 293                                     "background", "yellow",
 294                                     NULL);
 295
 296         tag = gtk_text_buffer_create_tag (priv->buffer,
 297                                           "link",
 298                                           NULL);
 299
 300         g_signal_connect (tag,
 301                           "event",
 302                           G_CALLBACK (chat_view_url_event_cb),
 303                           priv->buffer);
 304
 305         g_signal_connect (view,
 306                           "motion-notify-event",
 307                           G_CALLBACK (chat_view_event_cb),
 308                           tag);
 309 }
 310
 311 static void
 312 chat_view_system_font_update (EmpathyChatView *view)
 313 {
 314         PangoFontDescription *font_description = NULL;
 315         gchar                *font_name;
 316
 317         if (empathy_conf_get_string (empathy_conf_get (),
 318                                      "/desktop/gnome/interface/document_font_name",
 319                                      &font_name) && font_name) {
 320                 font_description = pango_font_description_from_string (font_name);
 321                 g_free (font_name);
 322         } else {
 323                 font_description = NULL;
 324         }
 325
 326         gtk_widget_modify_font (GTK_WIDGET (view), font_description);
 327
 328         if (font_description) {
 329                 pango_font_description_free (font_description);
 330         }
 331 }
 332
 333 static void
 334 chat_view_notify_system_font_cb (EmpathyConf  *conf,
 335                                  const gchar *key,
 336                                  gpointer     user_data)
 337 {
 338         EmpathyChatView *view;
 339         EmpathyChatViewPriv *priv;
 340         gboolean        show_avatars = FALSE;
 341
 342         view = user_data;
 343         priv = GET_PRIV (view);
 344
 345         chat_view_system_font_update (view);
 346
 347         /* Ugly, again, to adjust the vertical position of the nick... Will fix
 348          * this when reworking the theme manager so that view register
 349          * themselves with it instead of the other way around.
 350          */
 351         empathy_conf_get_bool (conf,
 352                                EMPATHY_PREFS_UI_SHOW_AVATARS,
 353                                &show_avatars);
 354
 355         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 356 }
 357
 358 static void
 359 chat_view_notify_show_avatars_cb (EmpathyConf  *conf,
 360                                   const gchar *key,
 361                                   gpointer     user_data)
 362 {
 363         EmpathyChatView     *view;
 364         EmpathyChatViewPriv *priv;
 365         gboolean            show_avatars = FALSE;
 366
 367         view = user_data;
 368         priv = GET_PRIV (view);
 369
 370         empathy_conf_get_bool (conf, key, &show_avatars);
 371
 372         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 373 }
 374
 375 static void
 376 chat_view_populate_popup (EmpathyChatView *view,
 377                           GtkMenu        *menu,
 378                           gpointer        user_data)
 379 {
 380         EmpathyChatViewPriv *priv;
 381         GtkTextTagTable    *table;
 382         GtkTextTag         *tag;
 383         gint                x, y;
 384         GtkTextIter         iter, start, end;
 385         GtkWidget          *item;
 386         gchar              *str = NULL;
 387
 388         priv = GET_PRIV (view);
 389
 390         /* Clear menu item */
 391         if (gtk_text_buffer_get_char_count (priv->buffer) > 0) {
 392                 item = gtk_menu_item_new ();
 393                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 394                 gtk_widget_show (item);
 395
 396                 item = gtk_image_menu_item_new_from_stock (GTK_STOCK_CLEAR, NULL);
 397                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 398                 gtk_widget_show (item);
 399
 400                 g_signal_connect (item,
 401                                   "activate",
 402                                   G_CALLBACK (chat_view_clear_view_cb),
 403                                   view);
 404         }
 405
 406         /* Link context menu items */
 407         table = gtk_text_buffer_get_tag_table (priv->buffer);
 408         tag = gtk_text_tag_table_lookup (table, "link");
 409
 410         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
 411
 412         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
 413                                                GTK_TEXT_WINDOW_WIDGET,
 414                                                x, y,
 415                                                &x, &y);
 416
 417         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
 418
 419         start = end = iter;
 420
 421         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 422             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 423                 str = gtk_text_buffer_get_text (priv->buffer,
 424                                                 &start, &end, FALSE);
 425         }
 426
 427         if (G_STR_EMPTY (str)) {
 428                 g_free (str);
 429                 return;
 430         }
 431
 432         /* NOTE: Set data just to get the string freed when not needed. */
 433         g_object_set_data_full (G_OBJECT (menu),
 434                                 "url", str,
 435                                 (GDestroyNotify) g_free);
 436
 437         item = gtk_menu_item_new ();
 438         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 439         gtk_widget_show (item);
 440
 441         item = gtk_menu_item_new_with_mnemonic (_("_Copy Link Address"));
 442         g_signal_connect (item,
 443                           "activate",
 444                           G_CALLBACK (chat_view_copy_address_cb),
 445                           str);
 446         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 447         gtk_widget_show (item);
 448
 449         item = gtk_menu_item_new_with_mnemonic (_("_Open Link"));
 450         g_signal_connect (item,
 451                           "activate",
 452                           G_CALLBACK (chat_view_open_address_cb),
 453                           str);
 454         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 455         gtk_widget_show (item);
 456 }
 457
 458 static gboolean
 459 chat_view_event_cb (EmpathyChatView *view,
 460                     GdkEventMotion *event,
 461                     GtkTextTag     *tag)
 462 {
 463         static GdkCursor  *hand = NULL;
 464         static GdkCursor  *beam = NULL;
 465         GtkTextWindowType  type;
 466         GtkTextIter        iter;
 467         GdkWindow         *win;
 468         gint               x, y, buf_x, buf_y;
 469
 470         type = gtk_text_view_get_window_type (GTK_TEXT_VIEW (view),
 471                                               event->window);
 472
 473         if (type != GTK_TEXT_WINDOW_TEXT) {
 474                 return FALSE;
 475         }
 476
 477         /* Get where the pointer really is. */
 478         win = gtk_text_view_get_window (GTK_TEXT_VIEW (view), type);
 479         if (!win) {
 480                 return FALSE;
 481         }
 482
 483         gdk_window_get_pointer (win, &x, &y, NULL);
 484
 485         /* Get the iter where the cursor is at */
 486         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view), type,
 487                                                x, y,
 488                                                &buf_x, &buf_y);
 489
 490         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view),
 491                                             &iter,
 492                                             buf_x, buf_y);
 493
 494         if (gtk_text_iter_has_tag (&iter, tag)) {
 495                 if (!hand) {
 496                         hand = gdk_cursor_new (GDK_HAND2);
 497                         beam = gdk_cursor_new (GDK_XTERM);
 498                 }
 499                 gdk_window_set_cursor (win, hand);
 500         } else {
 501                 if (!beam) {
 502                         beam = gdk_cursor_new (GDK_XTERM);
 503                 }
 504                 gdk_window_set_cursor (win, beam);
 505         }
 506
 507         return FALSE;
 508 }
 509
 510 static gboolean
 511 chat_view_url_event_cb (GtkTextTag    *tag,
 512                         GObject       *object,
 513                         GdkEvent      *event,
 514                         GtkTextIter   *iter,
 515                         GtkTextBuffer *buffer)
 516 {
 517         GtkTextIter  start, end;
 518         gchar       *str;
 519
 520         /* If the link is being selected, don't do anything. */
 521         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 522         if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end)) {
 523                 return FALSE;
 524         }
 525
 526         if (event->type == GDK_BUTTON_RELEASE && event->button.button == 1) {
 527                 start = end = *iter;
 528
 529                 if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 530                     gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 531                         str = gtk_text_buffer_get_text (buffer,
 532                                                         &start,
 533                                                         &end,
 534                                                         FALSE);
 535
 536                         empathy_url_show (str);
 537                         g_free (str);
 538                 }
 539         }
 540
 541         return FALSE;
 542 }
 543
 544 static void
 545 chat_view_open_address_cb (GtkMenuItem *menuitem, const gchar *url)
 546 {
 547         empathy_url_show (url);
 548 }
 549
 550 static void
 551 chat_view_copy_address_cb (GtkMenuItem *menuitem, const gchar *url)
 552 {
 553         GtkClipboard *clipboard;
 554
 555         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
 556         gtk_clipboard_set_text (clipboard, url, -1);
 557
 558         clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
 559         gtk_clipboard_set_text (clipboard, url, -1);
 560 }
 561
 562 static void
 563 chat_view_clear_view_cb (GtkMenuItem *menuitem, EmpathyChatView *view)
 564 {
 565         empathy_chat_view_clear (view);
 566 }
 567
 568 static gboolean
 569 chat_view_is_scrolled_down (EmpathyChatView *view)
 570 {
 571         GtkWidget *sw;
 572
 573         sw = gtk_widget_get_parent (GTK_WIDGET (view));
 574         if (GTK_IS_SCROLLED_WINDOW (sw)) {
 575                 GtkAdjustment *vadj;
 576
 577                 vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (sw));
 578
 579                 if (vadj->value + vadj->page_size / 2 < vadj->upper - vadj->page_size) {
 580                         return FALSE;
 581                 }
 582         }
 583
 584         return TRUE;
 585 }
 586
 587 static void
 588 chat_view_maybe_trim_buffer (EmpathyChatView *view)
 589 {
 590         EmpathyChatViewPriv *priv;
 591         GtkTextIter         top, bottom;
 592         gint                line;
 593         gint                remove;
 594         GtkTextTagTable    *table;
 595         GtkTextTag         *tag;
 596
 597         priv = GET_PRIV (view);
 598
 599         gtk_text_buffer_get_end_iter (priv->buffer, &bottom);
 600         line = gtk_text_iter_get_line (&bottom);
 601         if (line < MAX_LINES) {
 602                 return;
 603         }
 604
 605         remove = line - MAX_LINES;
 606         gtk_text_buffer_get_start_iter (priv->buffer, &top);
 607
 608         bottom = top;
 609         if (!gtk_text_iter_forward_lines (&bottom, remove)) {
 610                 return;
 611         }
 612
 613         /* Track backwords to a place where we can safely cut, we don't do it in
 614          * the middle of a tag.
 615          */
 616         table = gtk_text_buffer_get_tag_table (priv->buffer);
 617         tag = gtk_text_tag_table_lookup (table, "cut");
 618         if (!tag) {
 619                 return;
 620         }
 621
 622         if (!gtk_text_iter_forward_to_tag_toggle (&bottom, tag)) {
 623                 return;
 624         }
 625
 626         if (!gtk_text_iter_equal (&top, &bottom)) {
 627                 gtk_text_buffer_delete (priv->buffer, &top, &bottom);
 628         }
 629 }
 630
 631 static void
 632 chat_view_theme_changed_cb (EmpathyThemeManager *manager,
 633                             EmpathyChatView     *view)
 634 {
 635         EmpathyChatViewPriv *priv;
 636         gboolean            show_avatars = FALSE;
 637         gboolean            theme_rooms = FALSE;
 638
 639         priv = GET_PRIV (view);
 640
 641         priv->last_block_type = EMPATHY_CHAT_VIEW_BLOCK_NONE;
 642
 643         empathy_conf_get_bool (empathy_conf_get (),
 644                               EMPATHY_PREFS_CHAT_THEME_CHAT_ROOM,
 645                               &theme_rooms);
 646         if (!theme_rooms && priv->is_group_chat) {
 647                 empathy_theme_manager_apply (manager, view, NULL);
 648         } else {
 649                 empathy_theme_manager_apply_saved (manager, view);
 650         }
 651
 652         /* Needed for now to update the "rise" property of the names to get it
 653          * vertically centered.
 654          */
 655         empathy_conf_get_bool (empathy_conf_get (),
 656                                EMPATHY_PREFS_UI_SHOW_AVATARS,
 657                                &show_avatars);
 658         empathy_theme_set_show_avatars (priv->theme, show_avatars);
 659 }
 660
 661 /* Pads a pixbuf to the specified size, by centering it in a larger transparent
 662  * pixbuf. Returns a new ref.
 663  */
 664 static GdkPixbuf *
 665 chat_view_pad_to_size (GdkPixbuf *pixbuf,
 666                        gint       width,
 667                        gint       height,
 668                        gint       extra_padding_right)
 669 {
 670         gint       src_width, src_height;
 671         GdkPixbuf *padded;
 672         gint       x_offset, y_offset;
 673
 674         src_width = gdk_pixbuf_get_width (pixbuf);
 675         src_height = gdk_pixbuf_get_height (pixbuf);
 676
 677         x_offset = (width - src_width) / 2;
 678         y_offset = (height - src_height) / 2;
 679
 680         padded = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (pixbuf),
 681                                  TRUE, /* alpha */
 682                                  gdk_pixbuf_get_bits_per_sample (pixbuf),
 683                                  width + extra_padding_right,
 684                                  height);
 685
 686         gdk_pixbuf_fill (padded, 0);
 687
 688         gdk_pixbuf_copy_area (pixbuf,
 689                               0, /* source coords */
 690                               0,
 691                               src_width,
 692                               src_height,
 693                               padded,
 694                               x_offset, /* dest coords */
 695                               y_offset);
 696
 697         return padded;
 698 }
 699
 700 typedef struct {
 701         GdkPixbuf *pixbuf;
 702         gchar     *token;
 703 } AvatarData;
 704
 705 static void
 706 chat_view_avatar_cache_data_free (gpointer ptr)
 707 {
 708         AvatarData *data = ptr;
 709
 710         g_object_unref (data->pixbuf);
 711         g_free (data->token);
 712         g_slice_free (AvatarData, data);
 713 }
 714
 715 GdkPixbuf *
 716 empathy_chat_view_get_avatar_pixbuf_with_cache (EmpathyContact *contact)
 717 {
 718         static GHashTable *avatar_cache = NULL;
 719         AvatarData        *data;
 720         EmpathyAvatar     *avatar;
 721         GdkPixbuf         *tmp_pixbuf;
 722         GdkPixbuf         *pixbuf = NULL;
 723
 724         /* Init avatar cache */
 725         if (!avatar_cache) {
 726                 avatar_cache = g_hash_table_new_full (empathy_contact_hash,
 727                                                       empathy_contact_equal,
 728                                                       g_object_unref,
 729                                                       chat_view_avatar_cache_data_free);
 730         }
 731
 732         /* Check if avatar is in cache and if it's up to date */
 733         avatar = empathy_contact_get_avatar (contact);
 734         data = g_hash_table_lookup (avatar_cache, contact);
 735         if (data) {
 736                 if (avatar && !tp_strdiff (avatar->token, data->token)) {
 737                         /* We have the avatar in cache */
 738                         return data->pixbuf;
 739                 }
 740
 741                 /* The cache is outdate */
 742                 g_hash_table_remove (avatar_cache, contact);
 743         }
 744
 745         /* Avatar not in cache, create pixbuf */
 746         tmp_pixbuf = empathy_pixbuf_avatar_from_contact_scaled (contact, 32, 32);
 747         if (tmp_pixbuf) {
 748                 pixbuf = chat_view_pad_to_size (tmp_pixbuf, 32, 32, 6);
 749                 g_object_unref (tmp_pixbuf);
 750         }
 751         if (!pixbuf) {
 752                 return NULL;
 753         }
 754
 755         /* Insert new pixbuf in cache */
 756         data = g_slice_new0 (AvatarData);
 757         data->token = g_strdup (avatar->token);
 758         data->pixbuf = pixbuf;
 759
 760         g_hash_table_insert (avatar_cache,
 761                              g_object_ref (contact),
 762                              data);
 763
 764         return data->pixbuf;
 765 }
 766
 767 EmpathyChatView *
 768 empathy_chat_view_new (void)
 769 {
 770         return g_object_new (EMPATHY_TYPE_CHAT_VIEW, NULL);
 771 }
 772
 773 void
 774 empathy_chat_view_append_message (EmpathyChatView *view,
 775                                   EmpathyMessage  *msg)
 776 {
 777         EmpathyChatViewPriv *priv = GET_PRIV (view);
 778         EmpathyContact      *sender;
 779         gboolean             bottom;
 780         gboolean             from_self;
 781
 782         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 783         g_return_if_fail (EMPATHY_IS_MESSAGE (msg));
 784
 785         if (!empathy_message_get_body (msg)) {
 786                 return;
 787         }
 788
 789         bottom = chat_view_is_scrolled_down (view);
 790         sender = empathy_message_get_sender (msg);
 791         from_self = empathy_contact_is_user (sender);
 792
 793         chat_view_maybe_trim_buffer (view);
 794
 795         empathy_theme_append_message (priv->theme, view, msg);
 796
 797         if (bottom) {
 798                 empathy_chat_view_scroll_down (view);
 799         }
 800 }
 801
 802 void
 803 empathy_chat_view_append_event (EmpathyChatView *view,
 804                                const gchar    *str)
 805 {
 806         EmpathyChatViewPriv *priv;
 807         gboolean            bottom;
 808
 809         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 810         g_return_if_fail (!G_STR_EMPTY (str));
 811
 812         priv = GET_PRIV (view);
 813
 814         bottom = chat_view_is_scrolled_down (view);
 815
 816         chat_view_maybe_trim_buffer (view);
 817
 818         empathy_theme_append_event (priv->theme, view, str);
 819
 820         if (bottom) {
 821                 empathy_chat_view_scroll_down (view);
 822         }
 823
 824         priv->last_block_type = EMPATHY_CHAT_VIEW_BLOCK_EVENT;
 825 }
 826
 827 void
 828 empathy_chat_view_append_button (EmpathyChatView *view,
 829                                 const gchar    *message,
 830                                 GtkWidget      *button1,
 831                                 GtkWidget      *button2)
 832 {
 833         EmpathyChatViewPriv   *priv;
 834         GtkTextChildAnchor   *anchor;
 835         GtkTextIter           iter;
 836         gboolean              bottom;
 837         const gchar          *tag;
 838
 839         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 840         g_return_if_fail (button1 != NULL);
 841
 842         priv = GET_PRIV (view);
 843
 844         tag = "invite";
 845
 846         bottom = chat_view_is_scrolled_down (view);
 847
 848         empathy_theme_append_timestamp (priv->theme, view, NULL, TRUE, TRUE);
 849
 850         if (message) {
 851                 empathy_theme_append_text (priv->theme, view, message, tag, NULL);
 852         }
 853
 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), button1, anchor);
 858         gtk_widget_show (button1);
 859
 860         gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
 861                                                   &iter,
 862                                                   " ",
 863                                                   1,
 864                                                   tag,
 865                                                   NULL);
 866
 867         if (button2) {
 868                 gtk_text_buffer_get_end_iter (priv->buffer, &iter);
 869
 870                 anchor = gtk_text_buffer_create_child_anchor (priv->buffer, &iter);
 871                 gtk_text_view_add_child_at_anchor (GTK_TEXT_VIEW (view), button2, anchor);
 872                 gtk_widget_show (button2);
 873
 874                 gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
 875                                                           &iter,
 876                                                           " ",
 877                                                           1,
 878                                                           tag,
 879                                                           NULL);
 880         }
 881
 882         gtk_text_buffer_get_end_iter (priv->buffer, &iter);
 883         gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
 884                                                   &iter,
 885                                                   "\n\n",
 886                                                   2,
 887                                                   tag,
 888                                                   NULL);
 889
 890         if (bottom) {
 891                 empathy_chat_view_scroll_down (view);
 892         }
 893
 894         priv->last_block_type = EMPATHY_CHAT_VIEW_BLOCK_INVITE;
 895 }
 896
 897 void
 898 empathy_chat_view_scroll (EmpathyChatView *view,
 899                          gboolean        allow_scrolling)
 900 {
 901         EmpathyChatViewPriv *priv;
 902
 903         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 904
 905         priv = GET_PRIV (view);
 906
 907         priv->allow_scrolling = allow_scrolling;
 908
 909         empathy_debug (DEBUG_DOMAIN, "Scrolling %s",
 910                       allow_scrolling ? "enabled" : "disabled");
 911 }
 912
 913 /* Code stolen from pidgin/gtkimhtml.c */
 914 static gboolean
 915 chat_view_scroll_cb (EmpathyChatView *view)
 916 {
 917         EmpathyChatViewPriv *priv;
 918         GtkAdjustment      *adj;
 919         gdouble             max_val;
 920
 921         priv = GET_PRIV (view);
 922         adj = GTK_TEXT_VIEW (view)->vadjustment;
 923         max_val = adj->upper - adj->page_size;
 924
 925         g_return_val_if_fail (priv->scroll_time != NULL, FALSE);
 926
 927         if (g_timer_elapsed (priv->scroll_time, NULL) > MAX_SCROLL_TIME) {
 928                 /* time's up. jump to the end and kill the timer */
 929                 gtk_adjustment_set_value (adj, max_val);
 930                 g_timer_destroy (priv->scroll_time);
 931                 priv->scroll_time = NULL;
 932                 priv->scroll_timeout = 0;
 933                 return FALSE;
 934         }
 935
 936         /* scroll by 1/3rd the remaining distance */
 937         gtk_adjustment_set_value (adj, gtk_adjustment_get_value (adj) + ((max_val - gtk_adjustment_get_value (adj)) / 3));
 938         return TRUE;
 939 }
 940
 941 void
 942 empathy_chat_view_scroll_down (EmpathyChatView *view)
 943 {
 944         EmpathyChatViewPriv *priv;
 945
 946         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 947
 948         priv = GET_PRIV (view);
 949
 950         if (!priv->allow_scrolling) {
 951                 return;
 952         }
 953
 954         empathy_debug (DEBUG_DOMAIN, "Scrolling down");
 955
 956         if (priv->scroll_time) {
 957                 g_timer_reset (priv->scroll_time);
 958         } else {
 959                 priv->scroll_time = g_timer_new();
 960         }
 961         if (!priv->scroll_timeout) {
 962                 priv->scroll_timeout = g_timeout_add (SCROLL_DELAY,
 963                                                       (GSourceFunc) chat_view_scroll_cb,
 964                                                       view);
 965         }
 966 }
 967
 968 gboolean
 969 empathy_chat_view_get_selection_bounds (EmpathyChatView *view,
 970                                        GtkTextIter    *start,
 971                                        GtkTextIter    *end)
 972 {
 973         GtkTextBuffer *buffer;
 974
 975         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
 976
 977         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 978
 979         return gtk_text_buffer_get_selection_bounds (buffer, start, end);
 980 }
 981
 982 void
 983 empathy_chat_view_clear (EmpathyChatView *view)
 984 {
 985         GtkTextBuffer      *buffer;
 986         EmpathyChatViewPriv *priv;
 987
 988         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 989
 990         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 991         gtk_text_buffer_set_text (buffer, "", -1);
 992
 993         /* We set these back to the initial values so we get
 994          * timestamps when clearing the window to know when
 995          * conversations start.
 996          */
 997         priv = GET_PRIV (view);
 998
 999         priv->last_block_type = EMPATHY_CHAT_VIEW_BLOCK_NONE;
1000         priv->last_timestamp = 0;
1001 }
1002
1003 gboolean
1004 empathy_chat_view_find_previous (EmpathyChatView *view,
1005                                 const gchar    *search_criteria,
1006                                 gboolean        new_search)
1007 {
1008         EmpathyChatViewPriv *priv;
1009         GtkTextBuffer      *buffer;
1010         GtkTextIter         iter_at_mark;
1011         GtkTextIter         iter_match_start;
1012         GtkTextIter         iter_match_end;
1013         gboolean            found;
1014         gboolean            from_start = FALSE;
1015
1016         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
1017         g_return_val_if_fail (search_criteria != NULL, FALSE);
1018
1019         priv = GET_PRIV (view);
1020
1021         buffer = priv->buffer;
1022
1023         if (G_STR_EMPTY (search_criteria)) {
1024                 if (priv->find_mark_previous) {
1025                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1026
1027                         gtk_text_buffer_move_mark (buffer,
1028                                                    priv->find_mark_previous,
1029                                                    &iter_at_mark);
1030                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1031                                                       priv->find_mark_previous,
1032                                                       0.0,
1033                                                       TRUE,
1034                                                       0.0,
1035                                                       0.0);
1036                         gtk_text_buffer_select_range (buffer,
1037                                                       &iter_at_mark,
1038                                                       &iter_at_mark);
1039                 }
1040
1041                 return FALSE;
1042         }
1043
1044         if (new_search) {
1045                 from_start = TRUE;
1046         }
1047
1048         if (priv->find_mark_previous) {
1049                 gtk_text_buffer_get_iter_at_mark (buffer,
1050                                                   &iter_at_mark,
1051                                                   priv->find_mark_previous);
1052         } else {
1053                 gtk_text_buffer_get_end_iter (buffer, &iter_at_mark);
1054                 from_start = TRUE;
1055         }
1056
1057         priv->find_last_direction = FALSE;
1058
1059         found = empathy_text_iter_backward_search (&iter_at_mark,
1060                                                   search_criteria,
1061                                                   &iter_match_start,
1062                                                   &iter_match_end,
1063                                                   NULL);
1064
1065         if (!found) {
1066                 gboolean result = FALSE;
1067
1068                 if (from_start) {
1069                         return result;
1070                 }
1071
1072                 /* Here we wrap around. */
1073                 if (!new_search && !priv->find_wrapped) {
1074                         priv->find_wrapped = TRUE;
1075                         result = empathy_chat_view_find_previous (view,
1076                                                                  search_criteria,
1077                                                                  FALSE);
1078                         priv->find_wrapped = FALSE;
1079                 }
1080
1081                 return result;
1082         }
1083
1084         /* Set new mark and show on screen */
1085         if (!priv->find_mark_previous) {
1086                 priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
1087                                                                         &iter_match_start,
1088                                                                         TRUE);
1089         } else {
1090                 gtk_text_buffer_move_mark (buffer,
1091                                            priv->find_mark_previous,
1092                                            &iter_match_start);
1093         }
1094
1095         if (!priv->find_mark_next) {
1096                 priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
1097                                                                     &iter_match_end,
1098                                                                     TRUE);
1099         } else {
1100                 gtk_text_buffer_move_mark (buffer,
1101                                            priv->find_mark_next,
1102                                            &iter_match_end);
1103         }
1104
1105         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1106                                       priv->find_mark_previous,
1107                                       0.0,
1108                                       TRUE,
1109                                       0.5,
1110                                       0.5);
1111
1112         gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
1113         gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
1114
1115         return TRUE;
1116 }
1117
1118 gboolean
1119 empathy_chat_view_find_next (EmpathyChatView *view,
1120                             const gchar    *search_criteria,
1121                             gboolean        new_search)
1122 {
1123         EmpathyChatViewPriv *priv;
1124         GtkTextBuffer      *buffer;
1125         GtkTextIter         iter_at_mark;
1126         GtkTextIter         iter_match_start;
1127         GtkTextIter         iter_match_end;
1128         gboolean            found;
1129         gboolean            from_start = FALSE;
1130
1131         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
1132         g_return_val_if_fail (search_criteria != NULL, FALSE);
1133
1134         priv = GET_PRIV (view);
1135
1136         buffer = priv->buffer;
1137
1138         if (G_STR_EMPTY (search_criteria)) {
1139                 if (priv->find_mark_next) {
1140                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1141
1142                         gtk_text_buffer_move_mark (buffer,
1143                                                    priv->find_mark_next,
1144                                                    &iter_at_mark);
1145                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1146                                                       priv->find_mark_next,
1147                                                       0.0,
1148                                                       TRUE,
1149                                                       0.0,
1150                                                       0.0);
1151                         gtk_text_buffer_select_range (buffer,
1152                                                       &iter_at_mark,
1153                                                       &iter_at_mark);
1154                 }
1155
1156                 return FALSE;
1157         }
1158
1159         if (new_search) {
1160                 from_start = TRUE;
1161         }
1162
1163         if (priv->find_mark_next) {
1164                 gtk_text_buffer_get_iter_at_mark (buffer,
1165                                                   &iter_at_mark,
1166                                                   priv->find_mark_next);
1167         } else {
1168                 gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1169                 from_start = TRUE;
1170         }
1171
1172         priv->find_last_direction = TRUE;
1173
1174         found = empathy_text_iter_forward_search (&iter_at_mark,
1175                                                  search_criteria,
1176                                                  &iter_match_start,
1177                                                  &iter_match_end,
1178                                                  NULL);
1179
1180         if (!found) {
1181                 gboolean result = FALSE;
1182
1183                 if (from_start) {
1184                         return result;
1185                 }
1186
1187                 /* Here we wrap around. */
1188                 if (!new_search && !priv->find_wrapped) {
1189                         priv->find_wrapped = TRUE;
1190                         result = empathy_chat_view_find_next (view,
1191                                                              search_criteria,
1192                                                              FALSE);
1193                         priv->find_wrapped = FALSE;
1194                 }
1195
1196                 return result;
1197         }
1198
1199         /* Set new mark and show on screen */
1200         if (!priv->find_mark_next) {
1201                 priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
1202                                                                &iter_match_end,
1203                                                                TRUE);
1204         } else {
1205                 gtk_text_buffer_move_mark (buffer,
1206                                            priv->find_mark_next,
1207                                            &iter_match_end);
1208         }
1209
1210         if (!priv->find_mark_previous) {
1211                 priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
1212                                                                         &iter_match_start,
1213                                                                         TRUE);
1214         } else {
1215                 gtk_text_buffer_move_mark (buffer,
1216                                            priv->find_mark_previous,
1217                                            &iter_match_start);
1218         }
1219
1220         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1221                                       priv->find_mark_next,
1222                                       0.0,
1223                                       TRUE,
1224                                       0.5,
1225                                       0.5);
1226
1227         gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
1228         gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
1229
1230         return TRUE;
1231 }
1232
1233
1234 void
1235 empathy_chat_view_find_abilities (EmpathyChatView *view,
1236                                  const gchar    *search_criteria,
1237                                  gboolean       *can_do_previous,
1238                                  gboolean       *can_do_next)
1239 {
1240         EmpathyChatViewPriv *priv;
1241         GtkTextBuffer      *buffer;
1242         GtkTextIter         iter_at_mark;
1243         GtkTextIter         iter_match_start;
1244         GtkTextIter         iter_match_end;
1245
1246         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1247         g_return_if_fail (search_criteria != NULL);
1248         g_return_if_fail (can_do_previous != NULL && can_do_next != NULL);
1249
1250         priv = GET_PRIV (view);
1251
1252         buffer = priv->buffer;
1253
1254         if (can_do_previous) {
1255                 if (priv->find_mark_previous) {
1256                         gtk_text_buffer_get_iter_at_mark (buffer,
1257                                                           &iter_at_mark,
1258                                                           priv->find_mark_previous);
1259                 } else {
1260                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1261                 }
1262
1263                 *can_do_previous = empathy_text_iter_backward_search (&iter_at_mark,
1264                                                                      search_criteria,
1265                                                                      &iter_match_start,
1266                                                                      &iter_match_end,
1267                                                                      NULL);
1268         }
1269
1270         if (can_do_next) {
1271                 if (priv->find_mark_next) {
1272                         gtk_text_buffer_get_iter_at_mark (buffer,
1273                                                           &iter_at_mark,
1274                                                           priv->find_mark_next);
1275                 } else {
1276                         gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1277                 }
1278
1279                 *can_do_next = empathy_text_iter_forward_search (&iter_at_mark,
1280                                                                 search_criteria,
1281                                                                 &iter_match_start,
1282                                                                 &iter_match_end,
1283                                                                 NULL);
1284         }
1285 }
1286
1287 void
1288 empathy_chat_view_highlight (EmpathyChatView *view,
1289                              const gchar     *text)
1290 {
1291         GtkTextBuffer *buffer;
1292         GtkTextIter    iter;
1293         GtkTextIter    iter_start;
1294         GtkTextIter    iter_end;
1295         GtkTextIter    iter_match_start;
1296         GtkTextIter    iter_match_end;
1297         gboolean       found;
1298
1299         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1300
1301         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
1302
1303         gtk_text_buffer_get_start_iter (buffer, &iter);
1304
1305         gtk_text_buffer_get_bounds (buffer, &iter_start, &iter_end);
1306         gtk_text_buffer_remove_tag_by_name (buffer, "highlight",
1307                                             &iter_start,
1308                                             &iter_end);
1309
1310         if (G_STR_EMPTY (text)) {
1311                 return;
1312         }
1313
1314         while (1) {
1315                 found = empathy_text_iter_forward_search (&iter,
1316                                                          text,
1317                                                          &iter_match_start,
1318                                                          &iter_match_end,
1319                                                          NULL);
1320
1321                 if (!found) {
1322                         break;
1323                 }
1324
1325                 gtk_text_buffer_apply_tag_by_name (buffer, "highlight",
1326                                                    &iter_match_start,
1327                                                    &iter_match_end);
1328
1329                 iter = iter_match_end;
1330                 gtk_text_iter_forward_char (&iter);
1331         }
1332 }
1333
1334 void
1335 empathy_chat_view_copy_clipboard (EmpathyChatView *view)
1336 {
1337         GtkTextBuffer *buffer;
1338         GtkClipboard  *clipboard;
1339
1340         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1341
1342         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
1343         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1344
1345         gtk_text_buffer_copy_clipboard (buffer, clipboard);
1346 }
1347
1348 EmpathyTheme *
1349 empathy_chat_view_get_theme (EmpathyChatView *view)
1350 {
1351         EmpathyChatViewPriv *priv;
1352
1353         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), NULL);
1354
1355         priv = GET_PRIV (view);
1356
1357         return priv->theme;
1358 }
1359
1360 static void
1361 chat_view_theme_notify_cb (EmpathyTheme    *theme,
1362                            GParamSpec      *param,
1363                            EmpathyChatView *view)
1364 {
1365         empathy_theme_update_view (theme, view);
1366 }
1367
1368 void
1369 empathy_chat_view_set_theme (EmpathyChatView *view, EmpathyTheme *theme)
1370 {
1371         EmpathyChatViewPriv *priv;
1372
1373         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1374         g_return_if_fail (EMPATHY_IS_THEME (theme));
1375
1376         priv = GET_PRIV (view);
1377
1378         if (priv->theme) {
1379                 g_signal_handlers_disconnect_by_func (priv->theme,
1380                                                       chat_view_theme_notify_cb,
1381                                                       view);
1382                 g_object_unref (priv->theme);
1383         }
1384
1385         priv->theme = g_object_ref (theme);
1386
1387         empathy_theme_update_view (theme, view);
1388         g_signal_connect (priv->theme, "notify",
1389                           G_CALLBACK (chat_view_theme_notify_cb),
1390                           view);
1391
1392         /* FIXME: Redraw all messages using the new theme */
1393 }
1394
1395 void
1396 empathy_chat_view_set_margin (EmpathyChatView *view,
1397                              gint            margin)
1398 {
1399         EmpathyChatViewPriv *priv;
1400
1401         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1402
1403         priv = GET_PRIV (view);
1404
1405         g_object_set (view,
1406                       "left-margin", margin,
1407                       "right-margin", margin,
1408                       NULL);
1409 }
1410
1411 GtkWidget *
1412 empathy_chat_view_get_smiley_menu (GCallback    callback,
1413                                    gpointer     user_data)
1414 {
1415         EmpathySmileyManager *smiley_manager;
1416         GSList               *smileys, *l;
1417         GtkWidget            *menu;
1418         gint                  x = 0;
1419         gint                  y = 0;
1420
1421         g_return_val_if_fail (callback != NULL, NULL);
1422
1423         menu = gtk_menu_new ();
1424
1425         smiley_manager = empathy_smiley_manager_new ();
1426         smileys = empathy_smiley_manager_get_all (smiley_manager);
1427         for (l = smileys; l; l = l->next) {
1428                 EmpathySmiley *smiley;
1429                 GtkWidget     *item;
1430                 GtkWidget     *image;
1431
1432                 smiley = l->data;
1433                 image = gtk_image_new_from_pixbuf (smiley->pixbuf);
1434
1435                 item = gtk_image_menu_item_new_with_label ("");
1436                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
1437
1438                 gtk_menu_attach (GTK_MENU (menu), item,
1439                                  x, x + 1, y, y + 1);
1440
1441                 gtk_widget_set_tooltip_text (item, smiley->str);
1442
1443                 g_object_set_data  (G_OBJECT (item), "smiley_text", smiley->str);
1444                 g_signal_connect (item, "activate", callback, user_data);
1445
1446                 if (x > 3) {
1447                         y++;
1448                         x = 0;
1449                 } else {
1450                         x++;
1451                 }
1452         }
1453         g_object_unref (smiley_manager);
1454
1455         gtk_widget_show_all (menu);
1456
1457         return menu;
1458 }
1459
1460 /* FIXME: Do we really need this? Better to do it internally only at setup time,
1461  * we will never change it on the fly.
1462  */
1463 void
1464 empathy_chat_view_set_is_group_chat (EmpathyChatView *view,
1465                                     gboolean        is_group_chat)
1466 {
1467         EmpathyChatViewPriv *priv;
1468         gboolean            theme_rooms = FALSE;
1469
1470         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1471
1472         priv = GET_PRIV (view);
1473
1474         priv->is_group_chat = is_group_chat;
1475
1476         empathy_conf_get_bool (empathy_conf_get (),
1477                               EMPATHY_PREFS_CHAT_THEME_CHAT_ROOM,
1478                               &theme_rooms);
1479
1480         if (!theme_rooms && is_group_chat) {
1481                 empathy_theme_manager_apply (empathy_theme_manager_get (),
1482                                             view,
1483                                             NULL);
1484         } else {
1485                 empathy_theme_manager_apply_saved (empathy_theme_manager_get (),
1486                                                   view);
1487         }
1488 }
1489
1490 time_t
1491 empathy_chat_view_get_last_timestamp (EmpathyChatView *view)
1492 {
1493         EmpathyChatViewPriv *priv;
1494
1495         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), 0);
1496
1497         priv = GET_PRIV (view);
1498
1499         return priv->last_timestamp;
1500 }
1501
1502 void
1503 empathy_chat_view_set_last_timestamp (EmpathyChatView *view,
1504                                      time_t          timestamp)
1505 {
1506         EmpathyChatViewPriv *priv;
1507
1508         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1509
1510         priv = GET_PRIV (view);
1511
1512         priv->last_timestamp = timestamp;
1513 }
1514
1515 EmpathyChatViewBlock
1516 empathy_chat_view_get_last_block_type (EmpathyChatView *view)
1517 {
1518         EmpathyChatViewPriv *priv;
1519
1520         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), 0);
1521
1522         priv = GET_PRIV (view);
1523
1524         return priv->last_block_type;
1525 }
1526
1527 void
1528 empathy_chat_view_set_last_block_type (EmpathyChatView      *view,
1529                                        EmpathyChatViewBlock  block_type)
1530 {
1531         EmpathyChatViewPriv *priv;
1532
1533         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1534
1535         priv = GET_PRIV (view);
1536
1537         priv->last_block_type = block_type;
1538 }
1539
1540 EmpathyContact *
1541 empathy_chat_view_get_last_contact (EmpathyChatView *view)
1542 {
1543         EmpathyChatViewPriv *priv;
1544
1545         g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), NULL);
1546
1547         priv = GET_PRIV (view);
1548
1549         return priv->last_contact;
1550 }
1551
1552 void
1553 empathy_chat_view_set_last_contact (EmpathyChatView *view, EmpathyContact *contact)
1554 {
1555         EmpathyChatViewPriv *priv;
1556
1557         g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
1558
1559         priv = GET_PRIV (view);
1560
1561         if (priv->last_contact) {
1562                 g_object_unref (priv->last_contact);
1563                 priv->last_contact = NULL;
1564         }
1565
1566         if (contact) {
1567                 priv->last_contact = g_object_ref (contact);
1568         }
1569 }
1570