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