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path: root/src/empathy-chat-window.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2003-2007 Imendio AB
 * Copyright (C) 2007-2010 Collabora Ltd.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 *
 * Authors: Mikael Hallendal <micke@imendio.com>
 *          Richard Hult <richard@imendio.com>
 *          Martyn Russell <martyn@imendio.com>
 *          Geert-Jan Van den Bogaerde <geertjan@gnome.org>
 *          Xavier Claessens <xclaesse@gmail.com>
 *          Rômulo Fernandes Machado <romulo@castorgroup.net>
 */

#include <config.h>

#include <string.h>

#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <gdk/gdkx.h>
#include <glib/gi18n.h>
#include <libnotify/notification.h>

#include <telepathy-glib/telepathy-glib.h>

#include <libempathy/empathy-client-factory.h>
#include <libempathy/empathy-contact.h>
#include <libempathy/empathy-message.h>
#include <libempathy/empathy-chatroom-manager.h>
#include <libempathy/empathy-gsettings.h>
#include <libempathy/empathy-utils.h>
#include <libempathy/empathy-tp-contact-factory.h>
#include <libempathy/empathy-contact-list.h>
#include <libempathy/empathy-request-util.h>

#include <libempathy-gtk/empathy-images.h>
#include <libempathy-gtk/empathy-contact-dialogs.h>
#include <libempathy-gtk/empathy-log-window.h>
#include <libempathy-gtk/empathy-geometry.h>
#include <libempathy-gtk/empathy-smiley-manager.h>
#include <libempathy-gtk/empathy-sound-manager.h>
#include <libempathy-gtk/empathy-ui-utils.h>
#include <libempathy-gtk/empathy-notify-manager.h>

#include "empathy-chat-manager.h"
#include "empathy-chat-window.h"
#include "empathy-about-dialog.h"
#include "empathy-invite-participant-dialog.h"
#include "gedit-close-button.h"

#define DEBUG_FLAG EMPATHY_DEBUG_CHAT
#include <libempathy/empathy-debug.h>

/* Macro to compare guint32 X timestamps, while accounting for wrapping around
 */
#define X_EARLIER_OR_EQL(t1, t2) \
    ((t1 <= t2 && ((t2 - t1) < G_MAXUINT32/2))  \
      || (t1 >= t2 && (t1 - t2) > (G_MAXUINT32/2)) \
    )

#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyChatWindow)
typedef struct {
    EmpathyChat *current_chat;
    GList       *chats;
    gboolean     page_added;
    gboolean     dnd_same_window;
    EmpathyChatroomManager *chatroom_manager;
    EmpathyNotifyManager *notify_mgr;
    GtkWidget   *dialog;
    GtkWidget   *notebook;
    NotifyNotification *notification;

    GtkTargetList *contact_targets;
    GtkTargetList *file_targets;

    EmpathyChatManager *chat_manager;
    gulong chat_manager_chats_changed_id;

    /* Menu items. */
    GtkUIManager *ui_manager;
    GtkAction   *menu_conv_insert_smiley;
    GtkAction   *menu_conv_favorite;
    GtkAction   *menu_conv_always_urgent;
    GtkAction   *menu_conv_toggle_contacts;

    GtkAction   *menu_edit_cut;
    GtkAction   *menu_edit_copy;
    GtkAction   *menu_edit_paste;
    GtkAction   *menu_edit_find;

    GtkAction   *menu_tabs_next;
    GtkAction   *menu_tabs_prev;
    GtkAction   *menu_tabs_undo_close_tab;
    GtkAction   *menu_tabs_left;
    GtkAction   *menu_tabs_right;
    GtkAction   *menu_tabs_detach;

    /* Last user action time we acted upon to show a tab */
    guint32    x_user_action_time;

    GSettings *gsettings_chat;
    GSettings *gsettings_notif;
    GSettings *gsettings_ui;

    EmpathySoundManager *sound_mgr;
} EmpathyChatWindowPriv;

static GList *chat_windows = NULL;

static const guint tab_accel_keys[] = {
    GDK_KEY_1, GDK_KEY_2, GDK_KEY_3, GDK_KEY_4, GDK_KEY_5,
    GDK_KEY_6, GDK_KEY_7, GDK_KEY_8, GDK_KEY_9, GDK_KEY_0
};

typedef enum {
    DND_DRAG_TYPE_CONTACT_ID,
    DND_DRAG_TYPE_URI_LIST,
    DND_DRAG_TYPE_TAB
} DndDragType;

static const GtkTargetEntry drag_types_dest[] = {
    { "text/contact-id", 0, DND_DRAG_TYPE_CONTACT_ID },
    { "GTK_NOTEBOOK_TAB", GTK_TARGET_SAME_APP, DND_DRAG_TYPE_TAB },
    { "text/uri-list", 0, DND_DRAG_TYPE_URI_LIST },
    { "text/path-list", 0, DND_DRAG_TYPE_URI_LIST },
};

static const GtkTargetEntry drag_types_dest_contact[] = {
    { "text/contact-id", 0, DND_DRAG_TYPE_CONTACT_ID },
};

static const GtkTargetEntry drag_types_dest_file[] = {
    /* must be first to be prioritized, in order to receive the
     * note's file path from Tomboy instead of an URI */
    { "text/path-list", 0, DND_DRAG_TYPE_URI_LIST },
    { "text/uri-list", 0, DND_DRAG_TYPE_URI_LIST },
};

static void chat_window_update (EmpathyChatWindow *window,
        gboolean update_contact_menu);

static void empathy_chat_window_add_chat (EmpathyChatWindow *window,
                  EmpathyChat   *chat);

static void empathy_chat_window_remove_chat (EmpathyChatWindow *window,
                 EmpathyChat       *chat);

static void empathy_chat_window_move_chat (EmpathyChatWindow *old_window,
                   EmpathyChatWindow *new_window,
                   EmpathyChat       *chat);

static void empathy_chat_window_get_nb_chats (EmpathyChatWindow *self,
                   guint *nb_rooms,
                   guint *nb_private);

G_DEFINE_TYPE (EmpathyChatWindow, empathy_chat_window, G_TYPE_OBJECT);

static void
chat_window_accel_cb (GtkAccelGroup    *accelgroup,
              GObject          *object,
              guint             key,
              GdkModifierType   mod,
              EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    gint                  num = -1;
    guint                 i;

    priv = GET_PRIV (window);

    for (i = 0; i < G_N_ELEMENTS (tab_accel_keys); i++) {
        if (tab_accel_keys[i] == key) {
            num = i;
            break;
        }
    }

    if (num != -1) {
        gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->notebook), num);
    }
}

static EmpathyChatWindow *
chat_window_find_chat (EmpathyChat *chat)
{
    EmpathyChatWindowPriv *priv;
    GList                 *l, *ll;

    for (l = chat_windows; l; l = l->next) {
        priv = GET_PRIV (l->data);
        ll = g_list_find (priv->chats, chat);
        if (ll) {
            return l->data;
        }
    }

    return NULL;
}

static void
remove_all_chats (EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;

    priv = GET_PRIV (window);
    g_object_ref (window);

    while (priv->chats) {
        empathy_chat_window_remove_chat (window, priv->chats->data);
    }

    g_object_unref (window);
}

static void
confirm_close_response_cb (GtkWidget *dialog,
                           int response,
                           EmpathyChatWindow *window)
{
    EmpathyChat *chat;

    chat = g_object_get_data (G_OBJECT (dialog), "chat");

    gtk_widget_destroy (dialog);

    if (response != GTK_RESPONSE_ACCEPT)
        return;

    if (chat != NULL) {
        empathy_chat_window_remove_chat (window, chat);
    } else {
        remove_all_chats (window);
    }
}

static void
confirm_close (EmpathyChatWindow *window,
               gboolean close_window,
               guint n_rooms,
               EmpathyChat *chat)
{
    EmpathyChatWindowPriv *priv;
    GtkWidget *dialog;
    gchar *primary, *secondary;

    g_return_if_fail (n_rooms > 0);

    if (n_rooms > 1) {
        g_return_if_fail (chat == NULL);
    } else {
        g_return_if_fail (chat != NULL);
    }

    priv = GET_PRIV (window);

    /* If there are no chats in this window, how could we possibly have got
     * here?
     */
    g_return_if_fail (priv->chats != NULL);

    /* Treat closing a window which only has one tab exactly like closing
     * that tab.
     */
    if (close_window && priv->chats->next == NULL) {
        close_window = FALSE;
        chat = priv->chats->data;
    }

    if (close_window) {
        primary = g_strdup (_("Close this window?"));

        if (n_rooms == 1) {
            gchar *chat_name = empathy_chat_dup_name (chat);
            secondary = g_strdup_printf (
                _("Closing this window will leave %s. You will "
                  "not receive any further messages until you "
                  "rejoin it."),
                chat_name);
            g_free (chat_name);
        } else {
            secondary = g_strdup_printf (
                /* Note to translators: the number of chats will
                 * always be at least 2.
                 */
                ngettext (
                    "Closing this window will leave a chat room. You will "
                    "not receive any further messages until you rejoin it.",
                    "Closing this window will leave %u chat rooms. You will "
                    "not receive any further messages until you rejoin them.",
                    n_rooms),
                n_rooms);
        }
    } else {
        gchar *chat_name = empathy_chat_dup_name (chat);
        primary = g_strdup_printf (_("Leave %s?"), chat_name);
        secondary = g_strdup (_("You will not receive any further messages from this chat "
                                "room until you rejoin it."));
        g_free (chat_name);
    }

    dialog = gtk_message_dialog_new (
        GTK_WINDOW (priv->dialog),
        GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
        GTK_MESSAGE_WARNING,
        GTK_BUTTONS_CANCEL,
        "%s", primary);

    gtk_window_set_title (GTK_WINDOW (dialog), "");
    g_object_set (dialog, "secondary-text", secondary, NULL);

    g_free (primary);
    g_free (secondary);

    gtk_dialog_add_button (GTK_DIALOG (dialog),
        close_window ? _("Close window") : _("Leave room"),
        GTK_RESPONSE_ACCEPT);
    gtk_dialog_set_default_response (GTK_DIALOG (dialog),
        GTK_RESPONSE_ACCEPT);

    if (!close_window) {
        g_object_set_data (G_OBJECT (dialog), "chat", chat);
    }

    g_signal_connect (dialog, "response",
        G_CALLBACK (confirm_close_response_cb), window);

    gtk_window_present (GTK_WINDOW (dialog));
}

/* Returns TRUE if we should check if the user really wants to leave.  If it's
 * a multi-user chat, and it has a TpChat (so there's an underlying channel, so
 * the user is actually in the room as opposed to having been kicked or gone
 * offline or something), then we should check.
 */
static gboolean
chat_needs_close_confirmation (EmpathyChat *chat)
{
    return (empathy_chat_is_room (chat)
        && empathy_chat_get_tp_chat (chat) != NULL);
}

static void
maybe_close_chat (EmpathyChatWindow *window,
                  EmpathyChat *chat)
{
    g_return_if_fail (chat != NULL);

    if (chat_needs_close_confirmation (chat)) {
        confirm_close (window, FALSE, 1, chat);
    } else {
        empathy_chat_window_remove_chat (window, chat);
    }
}

static void
chat_window_close_clicked_cb (GtkAction   *action,
                  EmpathyChat *chat)
{
    EmpathyChatWindow *window;

    window = chat_window_find_chat (chat);
    maybe_close_chat (window, chat);
}

static void
chat_tab_style_updated_cb (GtkWidget *hbox,
               gpointer   user_data)
{
    GtkWidget *button;
    int char_width, h, w;
    PangoContext *context;
    const PangoFontDescription *font_desc;
    PangoFontMetrics *metrics;

    button = g_object_get_data (G_OBJECT (user_data),
        "chat-window-tab-close-button");
    context = gtk_widget_get_pango_context (hbox);

    font_desc = gtk_style_context_get_font (gtk_widget_get_style_context (hbox),
                        GTK_STATE_FLAG_NORMAL);

    metrics = pango_context_get_metrics (context, font_desc,
        pango_context_get_language (context));
    char_width = pango_font_metrics_get_approximate_char_width (metrics);
    pango_font_metrics_unref (metrics);

    gtk_icon_size_lookup_for_settings (gtk_widget_get_settings (button),
                       GTK_ICON_SIZE_MENU, &w, &h);

    /* Request at least about 12 chars width plus at least space for the status
     * image and the close button */
    gtk_widget_set_size_request (hbox,
        12 * PANGO_PIXELS (char_width) + 2 * w, -1);

    gtk_widget_set_size_request (button, w, h);
}

static GtkWidget *
chat_window_create_label (EmpathyChatWindow *window,
              EmpathyChat       *chat,
              gboolean           is_tab_label)
{
    GtkWidget            *hbox;
    GtkWidget            *name_label;
    GtkWidget            *status_image;
    GtkWidget            *event_box;
    GtkWidget            *event_box_hbox;
    PangoAttrList        *attr_list;
    PangoAttribute       *attr;

    /* The spacing between the button and the label. */
    hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);

    event_box = gtk_event_box_new ();
    gtk_event_box_set_visible_window (GTK_EVENT_BOX (event_box), FALSE);

    name_label = gtk_label_new (NULL);
    if (is_tab_label)
        gtk_label_set_ellipsize (GTK_LABEL (name_label), PANGO_ELLIPSIZE_END);

    attr_list = pango_attr_list_new ();
    attr = pango_attr_scale_new (1/1.2);
    attr->start_index = 0;
    attr->end_index = -1;
    pango_attr_list_insert (attr_list, attr);
    gtk_label_set_attributes (GTK_LABEL (name_label), attr_list);
    pango_attr_list_unref (attr_list);

    gtk_misc_set_padding (GTK_MISC (name_label), 2, 0);
    gtk_misc_set_alignment (GTK_MISC (name_label), 0.0, 0.5);
    g_object_set_data (G_OBJECT (chat),
        is_tab_label ? "chat-window-tab-label" : "chat-window-menu-label",
        name_label);

    status_image = gtk_image_new ();

    /* Spacing between the icon and label. */
    event_box_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);

    gtk_box_pack_start (GTK_BOX (event_box_hbox), status_image, FALSE, FALSE, 0);
    gtk_box_pack_start (GTK_BOX (event_box_hbox), name_label, TRUE, TRUE, 0);

    g_object_set_data (G_OBJECT (chat),
        is_tab_label ? "chat-window-tab-image" : "chat-window-menu-image",
        status_image);
    g_object_set_data (G_OBJECT (chat),
        is_tab_label ? "chat-window-tab-tooltip-widget" : "chat-window-menu-tooltip-widget",
        event_box);

    gtk_container_add (GTK_CONTAINER (event_box), event_box_hbox);
    gtk_box_pack_start (GTK_BOX (hbox), event_box, TRUE, TRUE, 0);

    if (is_tab_label) {
        GtkWidget            *close_button;
        GtkWidget *sending_spinner;

        sending_spinner = gtk_spinner_new ();

        gtk_box_pack_start (GTK_BOX (hbox), sending_spinner,
            FALSE, FALSE, 0);
        g_object_set_data (G_OBJECT (chat),
            "chat-window-tab-sending-spinner",
            sending_spinner);

        close_button = gedit_close_button_new ();
        g_object_set_data (G_OBJECT (chat), "chat-window-tab-close-button", close_button);

        /* We don't want focus/keynav for the button to avoid clutter, and
         * Ctrl-W works anyway.
         */
        gtk_widget_set_can_focus (close_button, FALSE);
        gtk_widget_set_can_default (close_button, FALSE);

        gtk_box_pack_end (GTK_BOX (hbox), close_button, FALSE, FALSE, 0);

        g_signal_connect (close_button,
                  "clicked",
                  G_CALLBACK (chat_window_close_clicked_cb),
                  chat);

        /* React to theme changes and also setup the size correctly.  */
        g_signal_connect (hbox,
                  "style-updated",
                  G_CALLBACK (chat_tab_style_updated_cb),
                  chat);
    }

    gtk_widget_show_all (hbox);

    return hbox;
}

static void
_submenu_notify_visible_changed_cb (GObject    *object,
                    GParamSpec *pspec,
                    gpointer    userdata)
{
    g_signal_handlers_disconnect_by_func (object,
                          _submenu_notify_visible_changed_cb,
                          userdata);
    chat_window_update (EMPATHY_CHAT_WINDOW (userdata), TRUE);
}

static void
chat_window_menu_context_update (EmpathyChatWindowPriv *priv,
                  gint num_pages)
{
    gboolean first_page;
    gboolean last_page;
    gboolean wrap_around;
    gboolean is_connected;
    gint     page_num;

    page_num = gtk_notebook_get_current_page (GTK_NOTEBOOK (priv->notebook));
    first_page = (page_num == 0);
    last_page = (page_num == (num_pages - 1));
    g_object_get (gtk_settings_get_default (), "gtk-keynav-wrap-around",
              &wrap_around, NULL);
    is_connected = empathy_chat_get_tp_chat (priv->current_chat) != NULL;

    gtk_action_set_sensitive (priv->menu_tabs_next, (!last_page ||
                             wrap_around));
    gtk_action_set_sensitive (priv->menu_tabs_prev, (!first_page ||
                             wrap_around));
    gtk_action_set_sensitive (priv->menu_tabs_detach, num_pages > 1);
    gtk_action_set_sensitive (priv->menu_tabs_left, !first_page);
    gtk_action_set_sensitive (priv->menu_tabs_right, !last_page);
    gtk_action_set_sensitive (priv->menu_conv_insert_smiley, is_connected);
}

static void
chat_window_conversation_menu_update (EmpathyChatWindowPriv *priv,
                                      EmpathyChatWindow     *self)
{
    EmpathyTpChat *tp_chat;
    TpConnection *connection;
    GtkAction *action;
    gboolean sensitive = FALSE;

    g_return_if_fail (priv->current_chat != NULL);

    action = gtk_ui_manager_get_action (priv->ui_manager,
        "/chats_menubar/menu_conv/menu_conv_invite_participant");
    tp_chat = empathy_chat_get_tp_chat (priv->current_chat);

    if (tp_chat != NULL) {
        connection = tp_channel_borrow_connection (TP_CHANNEL (tp_chat));

        sensitive = empathy_tp_chat_can_add_contact (tp_chat) &&
            (tp_connection_get_status (connection, NULL) ==
             TP_CONNECTION_STATUS_CONNECTED);
    }

    gtk_action_set_sensitive (action, sensitive);
}

static void
chat_window_contact_menu_update (EmpathyChatWindowPriv *priv,
                 EmpathyChatWindow     *window)
{
    GtkWidget *menu, *submenu, *orig_submenu;

    menu = gtk_ui_manager_get_widget (priv->ui_manager,
        "/chats_menubar/menu_contact");
    orig_submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (menu));

    if (orig_submenu == NULL || !gtk_widget_get_visible (orig_submenu)) {
        submenu = empathy_chat_get_contact_menu (priv->current_chat);

        if (submenu != NULL) {
            /* gtk_menu_attach_to_widget () doesn't behave nicely here */
            g_object_set_data (G_OBJECT (submenu), "window", priv->dialog);

            gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu), submenu);
            gtk_widget_show (menu);
            gtk_widget_set_sensitive (menu, TRUE);
        } else {
            gtk_widget_set_sensitive (menu, FALSE);
        }
    } else {
        tp_g_signal_connect_object (orig_submenu,
                         "notify::visible",
                         (GCallback)_submenu_notify_visible_changed_cb,
                         window, 0);
    }
}

static guint
get_all_unread_messages (EmpathyChatWindowPriv *priv)
{
    GList *l;
    guint nb = 0;

    for (l = priv->chats; l != NULL; l = g_list_next (l))
        nb += empathy_chat_get_nb_unread_messages (EMPATHY_CHAT (l->data));

    return nb;
}

static gchar *
get_window_title_name (EmpathyChatWindowPriv *priv)
{
    gchar *active_name, *ret;
    guint nb_chats;
    guint current_unread_msgs;

    nb_chats = g_list_length (priv->chats);
    g_assert (nb_chats > 0);

    active_name = empathy_chat_dup_name (priv->current_chat);

    current_unread_msgs = empathy_chat_get_nb_unread_messages (
            priv->current_chat);

    if (nb_chats == 1) {
        /* only one tab */
        if (current_unread_msgs == 0)
            ret = g_strdup (active_name);
        else
            ret = g_strdup_printf (ngettext (
                "%s (%d unread)",
                "%s (%d unread)", current_unread_msgs),
                active_name, current_unread_msgs);
    } else {
        guint nb_others = nb_chats - 1;
        guint all_unread_msgs;

        all_unread_msgs = get_all_unread_messages (priv);

        if (all_unread_msgs == 0) {
            /* no unread message */
            ret = g_strdup_printf (ngettext (
                "%s (and %u other)",
                "%s (and %u others)", nb_others),
                active_name, nb_others);
        }

        else if (all_unread_msgs == current_unread_msgs) {
            /* unread messages are in the current tab */
            ret = g_strdup_printf (ngettext (
                "%s (%d unread)",
                "%s (%d unread)", current_unread_msgs),
                active_name, current_unread_msgs);
        }

        else if (current_unread_msgs == 0) {
            /* unread messages are in other tabs */
            ret = g_strdup_printf (ngettext (
                "%s (%d unread from others)",
                "%s (%d unread from others)",
                all_unread_msgs),
                active_name, all_unread_msgs);
        }

        else {
            /* unread messages are in all the tabs */
            ret = g_strdup_printf (ngettext (
                "%s (%d unread from all)",
                "%s (%d unread from all)",
                all_unread_msgs),
                active_name, all_unread_msgs);
        }
    }

    g_free (active_name);

    return ret;
}

static void
chat_window_title_update (EmpathyChatWindowPriv *priv)
{
    gchar *name;

    name = get_window_title_name (priv);
    gtk_window_set_title (GTK_WINDOW (priv->dialog), name);
    g_free (name);
}

static void
chat_window_icon_update (EmpathyChatWindowPriv *priv, gboolean new_messages)
{
    GdkPixbuf      *icon;
    EmpathyContact *remote_contact;
    gboolean        avatar_in_icon;
    guint           n_chats;

    n_chats = g_list_length (priv->chats);

    /* Update window icon */
    if (new_messages) {
        gtk_window_set_icon_name (GTK_WINDOW (priv->dialog),
                      EMPATHY_IMAGE_MESSAGE);
    } else {
        avatar_in_icon = g_settings_get_boolean (priv->gsettings_chat,
                EMPATHY_PREFS_CHAT_AVATAR_IN_ICON);

        if (n_chats == 1 && avatar_in_icon) {
            remote_contact = empathy_chat_get_remote_contact (priv->current_chat);
            icon = empathy_pixbuf_avatar_from_contact_scaled (remote_contact, 0, 0);
            gtk_window_set_icon (GTK_WINDOW (priv->dialog), icon);

            if (icon != NULL) {
                g_object_unref (icon);
            }
        } else {
            gtk_window_set_icon_name (GTK_WINDOW (priv->dialog), NULL);
        }
    }
}

static void
chat_window_close_button_update (EmpathyChatWindowPriv *priv,
                 gint num_pages)
{
    GtkWidget *chat;
    GtkWidget *chat_close_button;
    gint       i;

    if (num_pages == 1) {
        chat = gtk_notebook_get_nth_page (GTK_NOTEBOOK (priv->notebook), 0);
        chat_close_button = g_object_get_data (G_OBJECT (chat),
                "chat-window-tab-close-button");
        gtk_widget_hide (chat_close_button);
    } else {
        for (i=0; i<num_pages; i++) {
            chat = gtk_notebook_get_nth_page (GTK_NOTEBOOK (priv->notebook), i);
            chat_close_button = g_object_get_data (G_OBJECT (chat),
                    "chat-window-tab-close-button");
            gtk_widget_show (chat_close_button);
        }
    }
}

static void
chat_window_update (EmpathyChatWindow *window,
            gboolean update_contact_menu)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);
    gint                   num_pages;

    num_pages = gtk_notebook_get_n_pages (GTK_NOTEBOOK (priv->notebook));

    /* Update Tab menu */
    chat_window_menu_context_update (priv,
                     num_pages);

    chat_window_conversation_menu_update (priv, window);

    /* If this update is due to a focus-in event, we know the menu will be
       the same as when we last left it, so no work to do.  Besides, if we
       swap out the menu on a focus-in, we may confuse any external global
       menu watching. */
    if (update_contact_menu) {
        chat_window_contact_menu_update (priv,
                         window);
    }

    chat_window_title_update (priv);

    chat_window_icon_update (priv, get_all_unread_messages (priv) > 0);

    chat_window_close_button_update (priv,
                     num_pages);
}

static void
append_markup_printf (GString    *string,
              const char *format,
              ...)
{
    gchar *tmp;
    va_list args;

    va_start (args, format);

    tmp = g_markup_vprintf_escaped (format, args);
    g_string_append (string, tmp);
    g_free (tmp);

    va_end (args);
}

static void
chat_window_update_chat_tab_full (EmpathyChat *chat,
                  gboolean update_contact_menu)
{
    EmpathyChatWindow     *window;
    EmpathyChatWindowPriv *priv;
    EmpathyContact        *remote_contact;
    gchar                 *name;
    const gchar           *id;
    TpAccount             *account;
    const gchar           *subject;
    const gchar           *status = NULL;
    GtkWidget             *widget;
    GString               *tooltip;
    gchar                 *markup;
    const gchar           *icon_name;
    GtkWidget             *tab_image;
    GtkWidget             *menu_image;
    GtkWidget             *sending_spinner;
    guint                  nb_sending;

    window = chat_window_find_chat (chat);
    if (!window) {
        return;
    }
    priv = GET_PRIV (window);

    /* Get information */
    name = empathy_chat_dup_name (chat);
    account = empathy_chat_get_account (chat);
    subject = empathy_chat_get_subject (chat);
    remote_contact = empathy_chat_get_remote_contact (chat);

    DEBUG ("Updating chat tab, name=%s, account=%s, subject=%s, remote_contact=%p",
        name, tp_proxy_get_object_path (account), subject, remote_contact);

    /* Update tab image */
    if (empathy_chat_get_tp_chat (chat) == NULL) {
        /* No TpChat, we are disconnected */
        icon_name = NULL;
    }
    else if (empathy_chat_get_nb_unread_messages (chat) > 0) {
        icon_name = EMPATHY_IMAGE_MESSAGE;
    }
    else if (remote_contact && empathy_chat_is_composing (chat)) {
        icon_name = EMPATHY_IMAGE_TYPING;
    }
    else if (empathy_chat_is_sms_channel (chat)) {
        icon_name = EMPATHY_IMAGE_SMS;
    }
    else if (remote_contact) {
        icon_name = empathy_icon_name_for_contact (remote_contact);
    } else {
        icon_name = EMPATHY_IMAGE_GROUP_MESSAGE;
    }

    tab_image = g_object_get_data (G_OBJECT (chat), "chat-window-tab-image");
    menu_image = g_object_get_data (G_OBJECT (chat), "chat-window-menu-image");
    if (icon_name != NULL) {
        gtk_image_set_from_icon_name (GTK_IMAGE (tab_image), icon_name, GTK_ICON_SIZE_MENU);
        gtk_widget_show (tab_image);
        gtk_image_set_from_icon_name (GTK_IMAGE (menu_image), icon_name, GTK_ICON_SIZE_MENU);
        gtk_widget_show (menu_image);
    } else {
        gtk_widget_hide (tab_image);
        gtk_widget_hide (menu_image);
    }

    /* Update the sending spinner */
    nb_sending = empathy_chat_get_n_messages_sending (chat);
    sending_spinner = g_object_get_data (G_OBJECT (chat),
        "chat-window-tab-sending-spinner");

    g_object_set (sending_spinner,
        "active", nb_sending > 0,
        "visible", nb_sending > 0,
        NULL);

    /* Update tab tooltip */
    tooltip = g_string_new (NULL);

    if (remote_contact) {
        id = empathy_contact_get_id (remote_contact);
        status = empathy_contact_get_presence_message (remote_contact);
    } else {
        id = name;
    }

    if (empathy_chat_is_sms_channel (chat)) {
        append_markup_printf (tooltip, "%s ", _("SMS:"));
    }

    append_markup_printf (tooltip,
                  "<b>%s</b><small> (%s)</small>",
                  id,
                  tp_account_get_display_name (account));

    if (nb_sending > 0) {
        char *tmp = g_strdup_printf (
            ngettext ("Sending %d message",
                  "Sending %d messages",
                  nb_sending),
            nb_sending);

        g_string_append (tooltip, "\n");
        g_string_append (tooltip, tmp);

        gtk_widget_set_tooltip_text (sending_spinner, tmp);
        g_free (tmp);
    }

    if (!EMP_STR_EMPTY (status)) {
        append_markup_printf (tooltip, "\n<i>%s</i>", status);
    }

    if (subject) {
        append_markup_printf (tooltip, "\n<b>%s</b> %s",
                      _("Topic:"), subject);
    }

    if (remote_contact && empathy_chat_is_composing (chat)) {
        append_markup_printf (tooltip, "\n%s", _("Typing a message."));
    }

    markup = g_string_free (tooltip, FALSE);
    widget = g_object_get_data (G_OBJECT (chat), "chat-window-tab-tooltip-widget");
    gtk_widget_set_tooltip_markup (widget, markup);
    widget = g_object_get_data (G_OBJECT (chat), "chat-window-menu-tooltip-widget");
    gtk_widget_set_tooltip_markup (widget, markup);
    g_free (markup);

    /* Update tab and menu label */
    if (empathy_chat_is_highlighted (chat)) {
        markup = g_markup_printf_escaped (
            "<span color=\"red\" weight=\"bold\">%s</span>",
            name);
    } else {
        markup = g_markup_escape_text (name, -1);
    }

    widget = g_object_get_data (G_OBJECT (chat), "chat-window-tab-label");
    gtk_label_set_markup (GTK_LABEL (widget), markup);
    widget = g_object_get_data (G_OBJECT (chat), "chat-window-menu-label");
    gtk_label_set_markup (GTK_LABEL (widget), markup);
    g_free (markup);

    /* Update the window if it's the current chat */
    if (priv->current_chat == chat) {
        chat_window_update (window, update_contact_menu);
    }

    g_free (name);
}

static void
chat_window_update_chat_tab (EmpathyChat *chat)
{
    chat_window_update_chat_tab_full (chat, TRUE);
}

static void
chat_window_chat_notify_cb (EmpathyChat *chat)
{
    EmpathyChatWindow *window;
    EmpathyContact *old_remote_contact;
    EmpathyContact *remote_contact = NULL;

    old_remote_contact = g_object_get_data (G_OBJECT (chat), "chat-window-remote-contact");
    remote_contact = empathy_chat_get_remote_contact (chat);

    if (old_remote_contact != remote_contact) {
        /* The remote-contact associated with the chat changed, we need
         * to keep track of any change of that contact and update the
         * window each time. */
        if (remote_contact) {
            g_signal_connect_swapped (remote_contact, "notify",
                          G_CALLBACK (chat_window_update_chat_tab),
                          chat);
        }
        if (old_remote_contact) {
            g_signal_handlers_disconnect_by_func (old_remote_contact,
                                  chat_window_update_chat_tab,
                                  chat);
        }

        g_object_set_data_full (G_OBJECT (chat), "chat-window-remote-contact",
                   g_object_ref (remote_contact), (GDestroyNotify) g_object_unref);
    }

    chat_window_update_chat_tab (chat);

    window = chat_window_find_chat (chat);
    if (window != NULL) {
        chat_window_update (window, FALSE);
    }
}

static void
chat_window_insert_smiley_activate_cb (EmpathySmileyManager *manager,
                       EmpathySmiley        *smiley,
                       gpointer              window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);
    EmpathyChat           *chat;
    GtkTextBuffer         *buffer;
    GtkTextIter            iter;

    chat = priv->current_chat;

    buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
    gtk_text_buffer_get_end_iter (buffer, &iter);
    gtk_text_buffer_insert (buffer, &iter, smiley->str, -1);
}

static void
chat_window_conv_activate_cb (GtkAction         *action,
                  EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);
    gboolean               is_room;
    gboolean               active;
    EmpathyContact        *remote_contact = NULL;

    /* Favorite room menu */
    is_room = empathy_chat_is_room (priv->current_chat);
    if (is_room) {
        const gchar *room;
        TpAccount   *account;
        gboolean     found = FALSE;
        EmpathyChatroom *chatroom;

        room = empathy_chat_get_id (priv->current_chat);
        account = empathy_chat_get_account (priv->current_chat);
        chatroom = empathy_chatroom_manager_find (priv->chatroom_manager,
                               account, room);
        if (chatroom != NULL)
            found = empathy_chatroom_is_favorite (chatroom);

        DEBUG ("This room %s favorite", found ? "is" : "is not");
        gtk_toggle_action_set_active (
            GTK_TOGGLE_ACTION (priv->menu_conv_favorite), found);

        if (chatroom != NULL)
            found = empathy_chatroom_is_always_urgent (chatroom);

        gtk_toggle_action_set_active (
            GTK_TOGGLE_ACTION (priv->menu_conv_always_urgent),
            found);
    }
    gtk_action_set_visible (priv->menu_conv_favorite, is_room);
    gtk_action_set_visible (priv->menu_conv_always_urgent, is_room);

    /* Show contacts menu */
    g_object_get (priv->current_chat,
              "remote-contact", &remote_contact,
              "show-contacts", &active,
              NULL);
    if (remote_contact == NULL) {
        gtk_toggle_action_set_active (
            GTK_TOGGLE_ACTION (priv->menu_conv_toggle_contacts),
                       active);
    }
    gtk_action_set_visible (priv->menu_conv_toggle_contacts,
                (remote_contact == NULL));
    if (remote_contact != NULL) {
        g_object_unref (remote_contact);
    }
}

static void
chat_window_clear_activate_cb (GtkAction         *action,
                   EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);

    empathy_chat_clear (priv->current_chat);
}

static void
chat_window_favorite_toggled_cb (GtkToggleAction   *toggle_action,
                 EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);
    gboolean               active;
    TpAccount             *account;
    gchar                 *name;
    const gchar           *room;
    EmpathyChatroom       *chatroom;

    active = gtk_toggle_action_get_active (toggle_action);
    account = empathy_chat_get_account (priv->current_chat);
    room = empathy_chat_get_id (priv->current_chat);
    name = empathy_chat_dup_name (priv->current_chat);

    chatroom = empathy_chatroom_manager_ensure_chatroom (
             priv->chatroom_manager,
             account,
             room,
             name);

    empathy_chatroom_set_favorite (chatroom, active);
    g_object_unref (chatroom);
    g_free (name);
}

static void
chat_window_always_urgent_toggled_cb (GtkToggleAction   *toggle_action,
                 EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);
    gboolean               active;
    TpAccount             *account;
    gchar                 *name;
    const gchar           *room;
    EmpathyChatroom       *chatroom;

    active = gtk_toggle_action_get_active (toggle_action);
    account = empathy_chat_get_account (priv->current_chat);
    room = empathy_chat_get_id (priv->current_chat);
    name = empathy_chat_dup_name (priv->current_chat);

    chatroom = empathy_chatroom_manager_ensure_chatroom (
             priv->chatroom_manager,
             account,
             room,
             name);

    empathy_chatroom_set_always_urgent (chatroom, active);
    g_object_unref (chatroom);
    g_free (name);
}

static void
chat_window_contacts_toggled_cb (GtkToggleAction   *toggle_action,
                 EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);
    gboolean               active;

    active = gtk_toggle_action_get_active (toggle_action);

    empathy_chat_set_show_contacts (priv->current_chat, active);
}

static void
chat_window_invite_participant_activate_cb (GtkAction         *action,
                        EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    GtkWidget             *dialog;
    EmpathyTpChat         *tp_chat;
    int                    response;

    priv = GET_PRIV (window);

    g_return_if_fail (priv->current_chat != NULL);

    tp_chat = empathy_chat_get_tp_chat (priv->current_chat);

    dialog = empathy_invite_participant_dialog_new (
            GTK_WINDOW (priv->dialog), tp_chat);
    gtk_widget_show (dialog);

    response = gtk_dialog_run (GTK_DIALOG (dialog));

    if (response == GTK_RESPONSE_ACCEPT) {
        TpContact *tp_contact;
        EmpathyContact *contact;

        tp_contact = empathy_invite_participant_dialog_get_selected (
            EMPATHY_INVITE_PARTICIPANT_DIALOG (dialog));
        if (tp_contact == NULL) goto out;

        contact = empathy_contact_dup_from_tp_contact (tp_contact);

        empathy_contact_list_add (EMPATHY_CONTACT_LIST (tp_chat),
                contact, _("Inviting you to this room"));

        g_object_unref (contact);
    }

out:
    gtk_widget_destroy (dialog);
}

static void
chat_window_close_activate_cb (GtkAction         *action,
                   EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;

    priv = GET_PRIV (window);

    g_return_if_fail (priv->current_chat != NULL);

    maybe_close_chat (window, priv->current_chat);
}

static void
chat_window_edit_activate_cb (GtkAction         *action,
                  EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    GtkClipboard         *clipboard;
    GtkTextBuffer        *buffer;
    gboolean              text_available;

    priv = GET_PRIV (window);

    g_return_if_fail (priv->current_chat != NULL);

    if (!empathy_chat_get_tp_chat (priv->current_chat)) {
        gtk_action_set_sensitive (priv->menu_edit_copy, FALSE);
        gtk_action_set_sensitive (priv->menu_edit_cut, FALSE);
        gtk_action_set_sensitive (priv->menu_edit_paste, FALSE);
        return;
    }

    buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->current_chat->input_text_view));
    if (gtk_text_buffer_get_has_selection (buffer)) {
        gtk_action_set_sensitive (priv->menu_edit_copy, TRUE);
        gtk_action_set_sensitive (priv->menu_edit_cut, TRUE);
    } else {
        gboolean selection;

        selection = empathy_chat_view_get_has_selection (priv->current_chat->view);

        gtk_action_set_sensitive (priv->menu_edit_cut, FALSE);
        gtk_action_set_sensitive (priv->menu_edit_copy, selection);
    }

    clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
    text_available = gtk_clipboard_wait_is_text_available (clipboard);
    gtk_action_set_sensitive (priv->menu_edit_paste, text_available);
}

static void
chat_window_cut_activate_cb (GtkAction         *action,
                 EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;

    g_return_if_fail (EMPATHY_IS_CHAT_WINDOW (window));

    priv = GET_PRIV (window);

    empathy_chat_cut (priv->current_chat);
}

static void
chat_window_copy_activate_cb (GtkAction         *action,
                  EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;

    g_return_if_fail (EMPATHY_IS_CHAT_WINDOW (window));

    priv = GET_PRIV (window);

    empathy_chat_copy (priv->current_chat);
}

static void
chat_window_paste_activate_cb (GtkAction         *action,
                   EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;

    g_return_if_fail (EMPATHY_IS_CHAT_WINDOW (window));

    priv = GET_PRIV (window);

    empathy_chat_paste (priv->current_chat);
}

static void
chat_window_find_activate_cb (GtkAction         *action,
                  EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;

    g_return_if_fail (EMPATHY_IS_CHAT_WINDOW (window));

    priv = GET_PRIV (window);

    empathy_chat_find (priv->current_chat);
}

static void
chat_window_tabs_next_activate_cb (GtkAction         *action,
                   EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    gint                  index_, numPages;
    gboolean              wrap_around;

    priv = GET_PRIV (window);

    g_object_get (gtk_settings_get_default (), "gtk-keynav-wrap-around",
                      &wrap_around, NULL);

    index_ = gtk_notebook_get_current_page (GTK_NOTEBOOK (priv->notebook));
    numPages = gtk_notebook_get_n_pages (GTK_NOTEBOOK (priv->notebook));

    if (index_ == (numPages - 1) && wrap_around) {
        gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->notebook), 0);
        return;
    }

    gtk_notebook_next_page (GTK_NOTEBOOK (priv->notebook));
}

static void
chat_window_tabs_previous_activate_cb (GtkAction         *action,
                   EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    gint                  index_, numPages;
    gboolean              wrap_around;

    priv = GET_PRIV (window);

    g_object_get (gtk_settings_get_default (), "gtk-keynav-wrap-around",
                      &wrap_around, NULL);

    index_ = gtk_notebook_get_current_page (GTK_NOTEBOOK (priv->notebook));
    numPages = gtk_notebook_get_n_pages (GTK_NOTEBOOK (priv->notebook));

    if (index_ <= 0 && wrap_around) {
        gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->notebook), numPages - 1);
        return;
    }

    gtk_notebook_prev_page (GTK_NOTEBOOK (priv->notebook));
}

static void
chat_window_tabs_undo_close_tab_activate_cb (GtkAction         *action,
                         EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);
    empathy_chat_manager_undo_closed_chat (priv->chat_manager,
                           empathy_get_current_action_time ());
}

static void
chat_window_tabs_left_activate_cb (GtkAction         *action,
                   EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    EmpathyChat           *chat;
    gint                  index_, num_pages;

    priv = GET_PRIV (window);

    chat = priv->current_chat;
    index_ = gtk_notebook_get_current_page (GTK_NOTEBOOK (priv->notebook));
    if (index_ <= 0) {
        return;
    }

    gtk_notebook_reorder_child (GTK_NOTEBOOK (priv->notebook),
                    GTK_WIDGET (chat),
                    index_ - 1);

    num_pages = gtk_notebook_get_n_pages (GTK_NOTEBOOK (priv->notebook));
    chat_window_menu_context_update (priv, num_pages);
}

static void
chat_window_tabs_right_activate_cb (GtkAction         *action,
                    EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    EmpathyChat           *chat;
    gint                  index_, num_pages;

    priv = GET_PRIV (window);

    chat = priv->current_chat;
    index_ = gtk_notebook_get_current_page (GTK_NOTEBOOK (priv->notebook));

    gtk_notebook_reorder_child (GTK_NOTEBOOK (priv->notebook),
                    GTK_WIDGET (chat),
                    index_ + 1);

    num_pages = gtk_notebook_get_n_pages (GTK_NOTEBOOK (priv->notebook));
    chat_window_menu_context_update (priv, num_pages);
}

static EmpathyChatWindow *
empathy_chat_window_new (void)
{
    return EMPATHY_CHAT_WINDOW (g_object_new (EMPATHY_TYPE_CHAT_WINDOW, NULL));
}

static void
chat_window_detach_activate_cb (GtkAction         *action,
                EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    EmpathyChatWindow     *new_window;
    EmpathyChat           *chat;

    priv = GET_PRIV (window);

    chat = priv->current_chat;
    new_window = empathy_chat_window_new ();

    empathy_chat_window_move_chat (window, new_window, chat);

    priv = GET_PRIV (new_window);
    gtk_widget_show (priv->dialog);
}

static void
chat_window_help_contents_activate_cb (GtkAction         *action,
                       EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);

    empathy_url_show (priv->dialog, "ghelp:empathy");
}

static void
chat_window_help_about_activate_cb (GtkAction         *action,
                    EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);

    empathy_about_dialog_new (GTK_WINDOW (priv->dialog));
}

static gboolean
chat_window_delete_event_cb (GtkWidget        *dialog,
                 GdkEvent         *event,
                 EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);
    EmpathyChat *chat = NULL;
    guint n_rooms = 0;
    GList *l;

    DEBUG ("Delete event received");

    for (l = priv->chats; l != NULL; l = l->next) {
        if (chat_needs_close_confirmation (l->data)) {
            chat = l->data;
            n_rooms++;
        }
    }

    if (n_rooms > 0) {
        confirm_close (window, TRUE, n_rooms,
            (n_rooms == 1 ? chat : NULL));
    } else {
        remove_all_chats (window);
    }

    return TRUE;
}

static void
chat_window_composing_cb (EmpathyChat       *chat,
              gboolean          is_composing,
              EmpathyChatWindow *window)
{
    chat_window_update_chat_tab (chat);
}

static void
chat_window_set_urgency_hint (EmpathyChatWindow *window,
                  gboolean          urgent)
{
    EmpathyChatWindowPriv *priv;

    priv = GET_PRIV (window);

    gtk_window_set_urgency_hint (GTK_WINDOW (priv->dialog), urgent);
}

static void
chat_window_notification_closed_cb (NotifyNotification *notify,
                    EmpathyChatWindow *self)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (self);

    g_object_unref (notify);
    if (priv->notification == notify) {
        priv->notification = NULL;
    }
}

static void
chat_window_show_or_update_notification (EmpathyChatWindow *window,
                     EmpathyMessage *message,
                     EmpathyChat *chat)
{
    EmpathyContact *sender;
    const gchar *header;
    char *escaped;
    const char *body;
    GdkPixbuf *pixbuf;
    EmpathyChatWindowPriv *priv = GET_PRIV (window);
    gboolean res, has_x_canonical_append;
    NotifyNotification *notification = priv->notification;

    if (!empathy_notify_manager_notification_is_enabled (priv->notify_mgr)) {
        return;
    } else {
        res = g_settings_get_boolean (priv->gsettings_notif,
                EMPATHY_PREFS_NOTIFICATIONS_FOCUS);

        if (!res) {
            return;
        }
    }

    sender = empathy_message_get_sender (message);
    header = empathy_contact_get_alias (sender);
    body = empathy_message_get_body (message);
    escaped = g_markup_escape_text (body, -1);
    has_x_canonical_append = empathy_notify_manager_has_capability (
        priv->notify_mgr, EMPATHY_NOTIFY_MANAGER_CAP_X_CANONICAL_APPEND);

    if (notification != NULL && !has_x_canonical_append) {
        /* if the notification server supports x-canonical-append, it is
           better to not use notify_notification_update to avoid
           overwriting the current notification message */
        notify_notification_update (notification,
                        header, escaped, NULL);
    } else {
        /* if the notification server supports x-canonical-append,
           the hint will be added, so that the message from the
           just created notification will be automatically appended
           to an existing notification with the same title.
           In this way the previous message will not be lost: the new
           message will appear below it, in the same notification */
        notification = notify_notification_new (header, escaped, NULL);

        if (priv->notification == NULL) {
            priv->notification = notification;
        }

        notify_notification_set_timeout (notification, NOTIFY_EXPIRES_DEFAULT);

        tp_g_signal_connect_object (notification, "closed",
                  G_CALLBACK (chat_window_notification_closed_cb), window, 0);

        if (has_x_canonical_append) {
            /* We have to set a not empty string to keep libnotify happy */
            notify_notification_set_hint_string (notification,
                EMPATHY_NOTIFY_MANAGER_CAP_X_CANONICAL_APPEND, "1");
        }

        notify_notification_set_hint (notification,
            EMPATHY_NOTIFY_MANAGER_CAP_CATEGORY,
            g_variant_new_string ("im.received"));
    }

    pixbuf = empathy_notify_manager_get_pixbuf_for_notification (priv->notify_mgr,
        sender, EMPATHY_IMAGE_NEW_MESSAGE);

    if (pixbuf != NULL) {
        notify_notification_set_icon_from_pixbuf (notification, pixbuf);
        g_object_unref (pixbuf);
    }

    notify_notification_show (notification, NULL);

    g_free (escaped);
}

static gboolean
empathy_chat_window_has_focus (EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    gboolean              has_focus;

    g_return_val_if_fail (EMPATHY_IS_CHAT_WINDOW (window), FALSE);

    priv = GET_PRIV (window);

    g_object_get (priv->dialog, "has-toplevel-focus", &has_focus, NULL);

    return has_focus;
}

static void
chat_window_new_message_cb (EmpathyChat       *chat,
                EmpathyMessage    *message,
                gboolean pending,
                gboolean should_highlight,
                EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    gboolean              has_focus;
    gboolean              needs_urgency;
    EmpathyContact        *sender;

    priv = GET_PRIV (window);

    has_focus = empathy_chat_window_has_focus (window);

    /* - if we're the sender, we play the sound if it's specified in the
     *   preferences and we're not away.
     * - if we receive a message, we play the sound if it's specified in the
     *   preferences and the window does not have focus on the chat receiving
     *   the message.
     */

    sender = empathy_message_get_sender (message);

    if (empathy_contact_is_user (sender)) {
        empathy_sound_manager_play (priv->sound_mgr, GTK_WIDGET (priv->dialog),
                    EMPATHY_SOUND_MESSAGE_OUTGOING);
    }

    if (has_focus && priv->current_chat == chat) {
        /* window and tab are focused so consider the message to be read */

        /* FIXME: see Bug#610994 and coments about it in EmpathyChatPriv */
        empathy_chat_messages_read (chat);
        return;
    }

    /* Update the chat tab if this is the first unread message */
    if (empathy_chat_get_nb_unread_messages (chat) == 1) {
        chat_window_update_chat_tab (chat);
    }

    /* If empathy_chat_is_room () returns TRUE, that means it's a named MUC.
     * If empathy_chat_get_remote_contact () returns NULL, that means it's
     * an unamed MUC (msn-like).
     * In case of a MUC, we set urgency if either:
     *   a) the chatroom's always_urgent property is TRUE
     *   b) the message contains our alias
     */
    if (empathy_chat_is_room (chat)) {
        TpAccount             *account;
        const gchar           *room;
        EmpathyChatroom       *chatroom;

        account = empathy_chat_get_account (chat);
        room = empathy_chat_get_id (chat);

        chatroom = empathy_chatroom_manager_find (priv->chatroom_manager,
                              account, room);

        if (chatroom != NULL && empathy_chatroom_is_always_urgent (chatroom)) {
            needs_urgency = TRUE;
        } else {
            needs_urgency = should_highlight;
        }
    } else {
        needs_urgency = TRUE;
    }

    if (needs_urgency) {
        if (!has_focus) {
            chat_window_set_urgency_hint (window, TRUE);
        }

        /* Pending messages have already been displayed and notified in the
        * approver, so we don't display a notification and play a sound for those */
        if (!pending) {
            empathy_sound_manager_play (priv->sound_mgr, GTK_WIDGET (priv->dialog),
                    EMPATHY_SOUND_MESSAGE_INCOMING);

            chat_window_show_or_update_notification (window, message, chat);
        }
    }

    /* update the number of unread messages and the window icon */
    chat_window_title_update (priv);
    chat_window_icon_update (priv, TRUE);
}

static void
chat_window_command_part (EmpathyChat *chat,
               GStrv        strv)
{
    EmpathyChat *chat_to_be_parted;
    EmpathyTpChat *tp_chat = NULL;

    if (strv[1] == NULL) {
        /* No chatroom ID specified  */
        tp_chat = empathy_chat_get_tp_chat (chat);
        if (tp_chat)
            empathy_tp_chat_leave (tp_chat, "");
        return;
    }
    chat_to_be_parted = empathy_chat_window_find_chat (
        empathy_chat_get_account (chat), strv[1], FALSE);

    if (chat_to_be_parted != NULL) {
        /* Found a chatroom matching the specified ID */
        tp_chat = empathy_chat_get_tp_chat (chat_to_be_parted);
        if (tp_chat)
            empathy_tp_chat_leave (tp_chat, strv[2]);
    } else {
        gchar *message;

        /* Going by the syntax of PART command:
         *
         * /PART [<chatroom-ID>] [<reason>]
         *
         * Chatroom-ID is not a must to specify a reason.
         * If strv[1] (chatroom-ID) is not a valid identifier for a connected
         * MUC then the current chatroom should be parted and srtv[1] should
         * be treated as part of the optional part-message. */
        message = g_strconcat (strv[1], " ", strv[2], NULL);
        tp_chat = empathy_chat_get_tp_chat (chat);
        if (tp_chat)
            empathy_tp_chat_leave (tp_chat, message);

        g_free (message);
    }
}

static GtkNotebook *
notebook_create_window_cb (GtkNotebook *source,
             GtkWidget   *page,
             gint         x,
             gint         y,
             gpointer     user_data)
{
    EmpathyChatWindowPriv *priv;
    EmpathyChatWindow     *window, *new_window;
    EmpathyChat           *chat;

    chat = EMPATHY_CHAT (page);
    window = chat_window_find_chat (chat);

    new_window = empathy_chat_window_new ();
    priv = GET_PRIV (new_window);

    DEBUG ("Detach hook called");

    empathy_chat_window_move_chat (window, new_window, chat);

    gtk_widget_show (priv->dialog);
    gtk_window_move (GTK_WINDOW (priv->dialog), x, y);

    return NULL;
}

static void
chat_window_page_switched_cb (GtkNotebook      *notebook,
                  GtkWidget         *child,
                  gint          page_num,
                  EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);
    EmpathyChat           *chat = EMPATHY_CHAT (child);

    DEBUG ("Page switched");

    if (priv->page_added) {
        priv->page_added = FALSE;
        empathy_chat_scroll_down (chat);
    }
    else if (priv->current_chat == chat) {
        return;
    }

    priv->current_chat = chat;
    empathy_chat_messages_read (chat);

    chat_window_update_chat_tab (chat);
}

static void
chat_window_page_added_cb (GtkNotebook      *notebook,
               GtkWidget        *child,
               guint             page_num,
               EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    EmpathyChat           *chat;

    priv = GET_PRIV (window);

    /* If we just received DND to the same window, we don't want
     * to do anything here like removing the tab and then readding
     * it, so we return here and in "page-added".
     */
    if (priv->dnd_same_window) {
        DEBUG ("Page added (back to the same window)");
        priv->dnd_same_window = FALSE;
        return;
    }

    DEBUG ("Page added");

    /* Get chat object */
    chat = EMPATHY_CHAT (child);

    /* Connect chat signals for this window */
    g_signal_connect (chat, "composing",
              G_CALLBACK (chat_window_composing_cb),
              window);
    g_signal_connect (chat, "new-message",
              G_CALLBACK (chat_window_new_message_cb),
              window);
    g_signal_connect (chat, "part-command-entered",
              G_CALLBACK (chat_window_command_part),
              NULL);
    g_signal_connect (chat, "notify::tp-chat",
              G_CALLBACK (chat_window_update_chat_tab),
              window);

    /* Set flag so we know to perform some special operations on
     * switch page due to the new page being added.
     */
    priv->page_added = TRUE;

    /* Get list of chats up to date */
    priv->chats = g_list_append (priv->chats, chat);

    chat_window_update_chat_tab (chat);
}

static void
chat_window_page_removed_cb (GtkNotebook      *notebook,
                 GtkWidget        *child,
                 guint             page_num,
                 EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;
    EmpathyChat           *chat;

    priv = GET_PRIV (window);

    /* If we just received DND to the same window, we don't want
     * to do anything here like removing the tab and then readding
     * it, so we return here and in "page-added".
     */
    if (priv->dnd_same_window) {
        DEBUG ("Page removed (and will be readded to same window)");
        return;
    }

    DEBUG ("Page removed");

    /* Get chat object */
    chat = EMPATHY_CHAT (child);

    /* Disconnect all signal handlers for this chat and this window */
    g_signal_handlers_disconnect_by_func (chat,
                          G_CALLBACK (chat_window_composing_cb),
                          window);
    g_signal_handlers_disconnect_by_func (chat,
                          G_CALLBACK (chat_window_new_message_cb),
                          window);
    g_signal_handlers_disconnect_by_func (chat,
                          G_CALLBACK (chat_window_update_chat_tab),
                          window);

    /* Keep list of chats up to date */
    priv->chats = g_list_remove (priv->chats, chat);
    empathy_chat_messages_read (chat);

    if (priv->chats == NULL) {
        g_object_unref (window);
    } else {
        chat_window_update (window, TRUE);
    }
}

static gboolean
chat_window_focus_in_event_cb (GtkWidget        *widget,
                   GdkEvent         *event,
                   EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv;

    priv = GET_PRIV (window);

    empathy_chat_messages_read (priv->current_chat);

    chat_window_set_urgency_hint (window, FALSE);

    /* Update the title, since we now mark all unread messages as read. */
    chat_window_update_chat_tab_full (priv->current_chat, FALSE);

    return FALSE;
}

static gboolean
chat_window_drag_drop (GtkWidget        *widget,
             GdkDragContext   *context,
             int               x,
             int               y,
             guint             time_,
             EmpathyChatWindow *window)
{
    GdkAtom target;
    EmpathyChatWindowPriv *priv;

    priv = GET_PRIV (window);

    target = gtk_drag_dest_find_target (widget, context, priv->file_targets);
    if (target == GDK_NONE)
        target = gtk_drag_dest_find_target (widget, context, priv->contact_targets);

    if (target != GDK_NONE) {
        gtk_drag_get_data (widget, context, target, time_);
        return TRUE;
    }

    return FALSE;
}

static gboolean
chat_window_drag_motion (GtkWidget        *widget,
             GdkDragContext   *context,
             int               x,
             int               y,
             guint             time_,
             EmpathyChatWindow *window)
{
    GdkAtom target;
    EmpathyChatWindowPriv *priv;

    priv = GET_PRIV (window);

    target = gtk_drag_dest_find_target (widget, context, priv->file_targets);
    if (target != GDK_NONE) {
        /* This is a file drag.  Ensure the contact is online and set the
           drag type to COPY.  Note that it's possible that the tab will
           be switched by GTK+ after a timeout from drag_motion without
           getting another drag_motion to disable the drop.  You have
           to hold your mouse really still.
         */
        EmpathyContact *contact;

        priv = GET_PRIV (window);
        contact = empathy_chat_get_remote_contact (priv->current_chat);
        /* contact is NULL for multi-user chats.  We don't do
         * file transfers to MUCs.  We also don't send files
         * to offline contacts or contacts that don't support
         * file transfer.
         */
        if ((contact == NULL) || !empathy_contact_is_online (contact)) {
            gdk_drag_status (context, 0, time_);
            return FALSE;
        }
        if (!(empathy_contact_get_capabilities (contact)
               & EMPATHY_CAPABILITIES_FT)) {
            gdk_drag_status (context, 0, time_);
            return FALSE;
        }
        gdk_drag_status (context, GDK_ACTION_COPY, time_);
        return TRUE;
    }

    target = gtk_drag_dest_find_target (widget, context, priv->contact_targets);
    if (target != GDK_NONE) {
        /* This is a drag of a contact from a contact list.  Set to COPY.
           FIXME: If this drag is to a MUC window, it invites the user.
           Otherwise, it opens a chat.  Should we use a different drag
           type for invites?  Should we allow ASK?
         */
        gdk_drag_status (context, GDK_ACTION_COPY, time_);
        return TRUE;
    }

    return FALSE;
}

static void
chat_window_drag_data_received (GtkWidget        *widget,
                GdkDragContext   *context,
                int               x,
                int               y,
                GtkSelectionData *selection,
                guint             info,
                guint             time_,
                EmpathyChatWindow *window)
{
    if (info == DND_DRAG_TYPE_CONTACT_ID) {
        EmpathyChat           *chat = NULL;
        EmpathyChatWindow     *old_window;
        TpAccount             *account = NULL;
        EmpathyClientFactory  *factory;
        const gchar           *id;
        gchar                **strv;
        const gchar           *account_id;
        const gchar           *contact_id;

        id = (const gchar*) gtk_selection_data_get_data (selection);

        factory = empathy_client_factory_dup ();

        DEBUG ("DND contact from roster with id:'%s'", id);

        strv = g_strsplit (id, ":", 2);
        if (g_strv_length (strv) == 2) {
            account_id = strv[0];
            contact_id = strv[1];
            account =
                tp_simple_client_factory_ensure_account (
                TP_SIMPLE_CLIENT_FACTORY (factory), account_id,
                 NULL, NULL);

            g_object_unref (factory);
            if (account != NULL)
                chat = empathy_chat_window_find_chat (account, contact_id, FALSE);
        }

        if (account == NULL) {
            g_strfreev (strv);
            gtk_drag_finish (context, FALSE, FALSE, time_);
            return;
        }

        if (!chat) {
            empathy_chat_with_contact_id (
                account, contact_id,
                empathy_get_current_action_time (),
                NULL, NULL);

            g_strfreev (strv);
            return;
        }
        g_strfreev (strv);

        old_window = chat_window_find_chat (chat);
        if (old_window) {
            if (old_window == window) {
                gtk_drag_finish (context, TRUE, FALSE, time_);
                return;
            }

            empathy_chat_window_move_chat (old_window, window, chat);
        } else {
            empathy_chat_window_add_chat (window, chat);
        }

        /* Added to take care of any outstanding chat events */
        empathy_chat_window_present_chat (chat,
            TP_USER_ACTION_TIME_NOT_USER_ACTION);

        /* We should return TRUE to remove the data when doing
         * GDK_ACTION_MOVE, but we don't here otherwise it has
         * weird consequences, and we handle that internally
         * anyway with add_chat () and remove_chat ().
         */
        gtk_drag_finish (context, TRUE, FALSE, time_);
    }
    else if (info == DND_DRAG_TYPE_URI_LIST) {
        EmpathyChatWindowPriv *priv;
        EmpathyContact *contact;
        const gchar *data;

        priv = GET_PRIV (window);
        contact = empathy_chat_get_remote_contact (priv->current_chat);

        /* contact is NULL when current_chat is a multi-user chat.
         * We don't do file transfers to MUCs, so just cancel the drag.
         */
        if (contact == NULL) {
            gtk_drag_finish (context, TRUE, FALSE, time_);
            return;
        }

        data = (const gchar *) gtk_selection_data_get_data (selection);
        empathy_send_file_from_uri_list (contact, data);

        gtk_drag_finish (context, TRUE, FALSE, time_);
    }
    else if (info == DND_DRAG_TYPE_TAB) {
        EmpathyChat        **chat;
        EmpathyChatWindow   *old_window = NULL;

        DEBUG ("DND tab");

        chat = (void *) gtk_selection_data_get_data (selection);
        old_window = chat_window_find_chat (*chat);

        if (old_window) {
            EmpathyChatWindowPriv *priv;

            priv = GET_PRIV (window);
            priv->dnd_same_window = (old_window == window);
            DEBUG ("DND tab (within same window: %s)",
                priv->dnd_same_window ? "Yes" : "No");
        }
    } else {
        DEBUG ("DND from unknown source");
        gtk_drag_finish (context, FALSE, FALSE, time_);
    }
}

static void
chat_window_chat_manager_chats_changed_cb (EmpathyChatManager *chat_manager,
                       guint num_chats_in_manager,
                       EmpathyChatWindow *window)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (window);

    gtk_action_set_sensitive (priv->menu_tabs_undo_close_tab,
                  num_chats_in_manager > 0);
}

static void
chat_window_finalize (GObject *object)
{
    EmpathyChatWindow     *window;
    EmpathyChatWindowPriv *priv;

    window = EMPATHY_CHAT_WINDOW (object);
    priv = GET_PRIV (window);

    DEBUG ("Finalized: %p", object);

    g_object_unref (priv->ui_manager);
    g_object_unref (priv->chatroom_manager);
    g_object_unref (priv->notify_mgr);
    g_object_unref (priv->gsettings_chat);
    g_object_unref (priv->gsettings_notif);
    g_object_unref (priv->gsettings_ui);
    g_object_unref (priv->sound_mgr);

    if (priv->notification != NULL) {
        notify_notification_close (priv->notification, NULL);
        priv->notification = NULL;
    }

    if (priv->contact_targets) {
        gtk_target_list_unref (priv->contact_targets);
    }
    if (priv->file_targets) {
        gtk_target_list_unref (priv->file_targets);
    }

    if (priv->chat_manager) {
        g_signal_handler_disconnect (priv->chat_manager,
                         priv->chat_manager_chats_changed_id);
        g_object_unref (priv->chat_manager);
        priv->chat_manager = NULL;
    }

    chat_windows = g_list_remove (chat_windows, window);
    gtk_widget_destroy (priv->dialog);

    G_OBJECT_CLASS (empathy_chat_window_parent_class)->finalize (object);
}

static void
empathy_chat_window_class_init (EmpathyChatWindowClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);

    object_class->finalize = chat_window_finalize;

    g_type_class_add_private (object_class, sizeof (EmpathyChatWindowPriv));
}

static void
empathy_chat_window_init (EmpathyChatWindow *window)
{
    GtkBuilder            *gui;
    GtkAccelGroup         *accel_group;
    GClosure              *closure;
    GtkWidget             *menu;
    GtkWidget             *submenu;
    guint                  i;
    GtkWidget             *chat_vbox;
    gchar                 *filename;
    EmpathySmileyManager  *smiley_manager;
    EmpathyChatWindowPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (window,
        EMPATHY_TYPE_CHAT_WINDOW, EmpathyChatWindowPriv);

    window->priv = priv;
    filename = empathy_file_lookup ("empathy-chat-window.ui", "src");
    gui = empathy_builder_get_file (filename,
                       "chat_window", &priv->dialog,
                       "chat_vbox", &chat_vbox,
                       "ui_manager", &priv->ui_manager,
                       "menu_conv_insert_smiley", &priv->menu_conv_insert_smiley,
                       "menu_conv_favorite", &priv->menu_conv_favorite,
                       "menu_conv_always_urgent", &priv->menu_conv_always_urgent,
                       "menu_conv_toggle_contacts", &priv->menu_conv_toggle_contacts,
                       "menu_edit_cut", &priv->menu_edit_cut,
                       "menu_edit_copy", &priv->menu_edit_copy,
                       "menu_edit_paste", &priv->menu_edit_paste,
                       "menu_edit_find", &priv->menu_edit_find,
                       "menu_tabs_next", &priv->menu_tabs_next,
                       "menu_tabs_prev", &priv->menu_tabs_prev,
                       "menu_tabs_undo_close_tab", &priv->menu_tabs_undo_close_tab,
                       "menu_tabs_left", &priv->menu_tabs_left,
                       "menu_tabs_right", &priv->menu_tabs_right,
                       "menu_tabs_detach", &priv->menu_tabs_detach,
                       NULL);
    g_free (filename);

    empathy_builder_connect (gui, window,
                  "menu_conv", "activate", chat_window_conv_activate_cb,
                  "menu_conv_clear", "activate", chat_window_clear_activate_cb,
                  "menu_conv_favorite", "toggled", chat_window_favorite_toggled_cb,
                  "menu_conv_always_urgent", "toggled", chat_window_always_urgent_toggled_cb,
                  "menu_conv_toggle_contacts", "toggled", chat_window_contacts_toggled_cb,
                  "menu_conv_invite_participant", "activate", chat_window_invite_participant_activate_cb,
                  "menu_conv_close", "activate", chat_window_close_activate_cb,
                  "menu_edit", "activate", chat_window_edit_activate_cb,
                  "menu_edit_cut", "activate", chat_window_cut_activate_cb,
                  "menu_edit_copy", "activate", chat_window_copy_activate_cb,
                  "menu_edit_paste", "activate", chat_window_paste_activate_cb,
                  "menu_edit_find", "activate", chat_window_find_activate_cb,
                  "menu_tabs_next", "activate", chat_window_tabs_next_activate_cb,
                  "menu_tabs_prev", "activate", chat_window_tabs_previous_activate_cb,
                  "menu_tabs_undo_close_tab", "activate", chat_window_tabs_undo_close_tab_activate_cb,
                  "menu_tabs_left", "activate", chat_window_tabs_left_activate_cb,
                  "menu_tabs_right", "activate", chat_window_tabs_right_activate_cb,
                  "menu_tabs_detach", "activate", chat_window_detach_activate_cb,
                  "menu_help_contents", "activate", chat_window_help_contents_activate_cb,
                  "menu_help_about", "activate", chat_window_help_about_activate_cb,
                  NULL);

    g_object_ref (priv->ui_manager);
    g_object_unref (gui);

    priv->gsettings_chat = g_settings_new (EMPATHY_PREFS_CHAT_SCHEMA);
    priv->gsettings_notif = g_settings_new (EMPATHY_PREFS_NOTIFICATIONS_SCHEMA);
    priv->gsettings_ui = g_settings_new (EMPATHY_PREFS_UI_SCHEMA);
    priv->chatroom_manager = empathy_chatroom_manager_dup_singleton (NULL);

    priv->sound_mgr = empathy_sound_manager_dup_singleton ();

    priv->notebook = gtk_notebook_new ();

    g_signal_connect (priv->notebook, "create-window",
        G_CALLBACK (notebook_create_window_cb), window);

    gtk_notebook_set_group_name (GTK_NOTEBOOK (priv->notebook),
        "EmpathyChatWindow");
    gtk_notebook_set_scrollable (GTK_NOTEBOOK (priv->notebook), TRUE);
    gtk_notebook_popup_enable (GTK_NOTEBOOK (priv->notebook));
    gtk_box_pack_start (GTK_BOX (chat_vbox), priv->notebook, TRUE, TRUE, 0);
    gtk_widget_show (priv->notebook);

    /* Set up accels */
    accel_group = gtk_accel_group_new ();
    gtk_window_add_accel_group (GTK_WINDOW (priv->dialog), accel_group);

    for (i = 0; i < G_N_ELEMENTS (tab_accel_keys); i++) {
        closure =  g_cclosure_new (G_CALLBACK (chat_window_accel_cb),
                       window,
                       NULL);
        gtk_accel_group_connect (accel_group,
                     tab_accel_keys[i],
                     GDK_MOD1_MASK,
                     0,
                     closure);
    }

    g_object_unref (accel_group);

    /* Set up drag target lists */
    priv->contact_targets = gtk_target_list_new (drag_types_dest_contact,
                             G_N_ELEMENTS (drag_types_dest_contact));
    priv->file_targets = gtk_target_list_new (drag_types_dest_file,
                          G_N_ELEMENTS (drag_types_dest_file));

    /* Set up smiley menu */
    smiley_manager = empathy_smiley_manager_dup_singleton ();
    submenu = empathy_smiley_menu_new (smiley_manager,
                       chat_window_insert_smiley_activate_cb,
                       window);
    menu = gtk_ui_manager_get_widget (priv->ui_manager,
        "/chats_menubar/menu_conv/menu_conv_insert_smiley");
    gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu), submenu);
    g_object_unref (smiley_manager);

    /* Set up signals we can't do with ui file since we may need to
     * block/unblock them at some later stage.
     */

    g_signal_connect (priv->dialog,
              "delete_event",
              G_CALLBACK (chat_window_delete_event_cb),
              window);
    g_signal_connect (priv->dialog,
              "focus_in_event",
              G_CALLBACK (chat_window_focus_in_event_cb),
              window);
    g_signal_connect_after (priv->notebook,
                "switch_page",
                G_CALLBACK (chat_window_page_switched_cb),
                window);
    g_signal_connect (priv->notebook,
              "page_added",
              G_CALLBACK (chat_window_page_added_cb),
              window);
    g_signal_connect (priv->notebook,
              "page_removed",
              G_CALLBACK (chat_window_page_removed_cb),
              window);

    /* Set up drag and drop */
    gtk_drag_dest_set (GTK_WIDGET (priv->notebook),
               GTK_DEST_DEFAULT_HIGHLIGHT,
               drag_types_dest,
               G_N_ELEMENTS (drag_types_dest),
               GDK_ACTION_MOVE | GDK_ACTION_COPY);

    /* connect_after to allow GtkNotebook's built-in tab switching */
    g_signal_connect_after (priv->notebook,
                "drag-motion",
                G_CALLBACK (chat_window_drag_motion),
                window);
    g_signal_connect (priv->notebook,
              "drag-data-received",
              G_CALLBACK (chat_window_drag_data_received),
              window);
    g_signal_connect (priv->notebook,
              "drag-drop",
              G_CALLBACK (chat_window_drag_drop),
              window);

    chat_windows = g_list_prepend (chat_windows, window);

    /* Set up private details */
    priv->chats = NULL;
    priv->current_chat = NULL;
    priv->notification = NULL;

    priv->notify_mgr = empathy_notify_manager_dup_singleton ();

    priv->chat_manager = empathy_chat_manager_dup_singleton ();
    priv->chat_manager_chats_changed_id =
        g_signal_connect (priv->chat_manager, "closed-chats-changed",
                  G_CALLBACK (chat_window_chat_manager_chats_changed_cb),
                  window);

    chat_window_chat_manager_chats_changed_cb (priv->chat_manager,
                           empathy_chat_manager_get_num_closed_chats (priv->chat_manager),
                           window);
}

/* Returns the window to open a new tab in if there is a suitable window,
 * otherwise, returns NULL indicating that a new window should be added.
 */
static EmpathyChatWindow *
empathy_chat_window_get_default (gboolean room)
{
    GSettings *gsettings = g_settings_new (EMPATHY_PREFS_UI_SCHEMA);
    GList    *l;
    gboolean  separate_windows = TRUE;

    separate_windows = g_settings_get_boolean (gsettings,
            EMPATHY_PREFS_UI_SEPARATE_CHAT_WINDOWS);

    g_object_unref (gsettings);

    if (separate_windows) {
        /* Always create a new window */
        return NULL;
    }

    for (l = chat_windows; l; l = l->next) {
        EmpathyChatWindow *chat_window;
        guint nb_rooms, nb_private;

        chat_window = l->data;

        empathy_chat_window_get_nb_chats (chat_window, &nb_rooms, &nb_private);

        /* Skip the window if there aren't any rooms in it */
        if (room && nb_rooms == 0)
            continue;

        /* Skip the window if there aren't any 1-1 chats in it */
        if (!room && nb_private == 0)
            continue;

        return chat_window;
    }

    return NULL;
}

static void
empathy_chat_window_add_chat (EmpathyChatWindow *window,
                  EmpathyChat   *chat)
{
    EmpathyChatWindowPriv *priv;
    GtkWidget             *label;
    GtkWidget             *popup_label;
    GtkWidget             *child;
    GValue                value = { 0, };

    g_return_if_fail (window != NULL);
    g_return_if_fail (EMPATHY_IS_CHAT (chat));

    priv = GET_PRIV (window);

    /* Reference the chat object */
    g_object_ref (chat);

    /* If this window has just been created, position it */
    if (priv->chats == NULL) {
        const gchar *name = "chat-window";
        gboolean     separate_windows;

        separate_windows = g_settings_get_boolean (priv->gsettings_ui,
                EMPATHY_PREFS_UI_SEPARATE_CHAT_WINDOWS);

        if (empathy_chat_is_room (chat))
            name = "room-window";

        if (separate_windows) {
            gint x, y;

            /* Save current position of the window */
            gtk_window_get_position (GTK_WINDOW (priv->dialog), &x, &y);

            /* First bind to the 'generic' name. So new window for which we didn't
            * save a geometry yet will have the geometry of the last saved
            * window (bgo #601191). */
            empathy_geometry_bind (GTK_WINDOW (priv->dialog), name);

            /* Restore previous position of the window so the newly created window
            * won't be in the same position as the latest saved window and so
            * completely hide it. */
            gtk_window_move (GTK_WINDOW (priv->dialog), x, y);

            /* Then bind it to the name of the contact/room so we'll save the
            * geometry specific to this window */
            name = empathy_chat_get_id (chat);
        }

        empathy_geometry_bind (GTK_WINDOW (priv->dialog), name);
    }

    child = GTK_WIDGET (chat);
    label = chat_window_create_label (window, chat, TRUE);
    popup_label = chat_window_create_label (window, chat, FALSE);
    gtk_widget_show (child);

    g_signal_connect (chat, "notify::name",
              G_CALLBACK (chat_window_chat_notify_cb),
              NULL);
    g_signal_connect (chat, "notify::subject",
              G_CALLBACK (chat_window_chat_notify_cb),
              NULL);
    g_signal_connect (chat, "notify::remote-contact",
              G_CALLBACK (chat_window_chat_notify_cb),
              NULL);
    g_signal_connect (chat, "notify::sms-channel",
              G_CALLBACK (chat_window_chat_notify_cb),
              NULL);
    g_signal_connect (chat, "notify::n-messages-sending",
              G_CALLBACK (chat_window_chat_notify_cb),
              NULL);
    g_signal_connect (chat, "notify::nb-unread-messages",
              G_CALLBACK (chat_window_chat_notify_cb),
              NULL);
    chat_window_chat_notify_cb (chat);

    gtk_notebook_append_page_menu (GTK_NOTEBOOK (priv->notebook), child, label, popup_label);
    gtk_notebook_set_tab_reorderable (GTK_NOTEBOOK (priv->notebook), child, TRUE);
    gtk_notebook_set_tab_detachable (GTK_NOTEBOOK (priv->notebook), child, TRUE);
    g_value_init (&value, G_TYPE_BOOLEAN);
    g_value_set_boolean (&value, TRUE);
    gtk_container_child_set_property (GTK_CONTAINER (priv->notebook),
                      child, "tab-expand" , &value);
    gtk_container_child_set_property (GTK_CONTAINER (priv->notebook),
                      child,  "tab-fill" , &value);
    g_value_unset (&value);

    DEBUG ("Chat added (%d references)", G_OBJECT (chat)->ref_count);
}

static void
empathy_chat_window_remove_chat (EmpathyChatWindow *window,
                 EmpathyChat       *chat)
{
    EmpathyChatWindowPriv *priv;
    gint                   position;
    EmpathyContact        *remote_contact;
    EmpathyChatManager    *chat_manager;

    g_return_if_fail (window != NULL);
    g_return_if_fail (EMPATHY_IS_CHAT (chat));

    priv = GET_PRIV (window);

    g_signal_handlers_disconnect_by_func (chat,
                          chat_window_chat_notify_cb,
                          NULL);
    remote_contact = g_object_get_data (G_OBJECT (chat),
                        "chat-window-remote-contact");
    if (remote_contact) {
        g_signal_handlers_disconnect_by_func (remote_contact,
                              chat_window_update_chat_tab,
                              chat);
    }

    chat_manager = empathy_chat_manager_dup_singleton ();
    empathy_chat_manager_closed_chat (chat_manager, chat);
    g_object_unref (chat_manager);

    position = gtk_notebook_page_num (GTK_NOTEBOOK (priv->notebook),
                      GTK_WIDGET (chat));
    gtk_notebook_remove_page (GTK_NOTEBOOK (priv->notebook), position);

    DEBUG ("Chat removed (%d references)", G_OBJECT (chat)->ref_count - 1);

    g_object_unref (chat);
}

static void
empathy_chat_window_move_chat (EmpathyChatWindow *old_window,
                   EmpathyChatWindow *new_window,
                   EmpathyChat       *chat)
{
    GtkWidget *widget;

    g_return_if_fail (EMPATHY_IS_CHAT_WINDOW (old_window));
    g_return_if_fail (EMPATHY_IS_CHAT_WINDOW (new_window));
    g_return_if_fail (EMPATHY_IS_CHAT (chat));

    widget = GTK_WIDGET (chat);

    DEBUG ("Chat moving with widget:%p (%d references)", widget,
        G_OBJECT (widget)->ref_count);

    /* We reference here to make sure we don't loose the widget
     * and the EmpathyChat object during the move.
     */
    g_object_ref (chat);
    g_object_ref (widget);

    empathy_chat_window_remove_chat (old_window, chat);
    empathy_chat_window_add_chat (new_window, chat);

    g_object_unref (widget);
    g_object_unref (chat);
}

static void
empathy_chat_window_switch_to_chat (EmpathyChatWindow *window,
                    EmpathyChat       *chat)
{
    EmpathyChatWindowPriv *priv;
    gint                  page_num;

    g_return_if_fail (window != NULL);
    g_return_if_fail (EMPATHY_IS_CHAT (chat));

    priv = GET_PRIV (window);

    page_num = gtk_notebook_page_num (GTK_NOTEBOOK (priv->notebook),
                      GTK_WIDGET (chat));
    gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->notebook),
                       page_num);
}

EmpathyChat *
empathy_chat_window_find_chat (TpAccount   *account,
                   const gchar *id,
                   gboolean     sms_channel)
{
    GList *l;

    g_return_val_if_fail (!EMP_STR_EMPTY (id), NULL);

    for (l = chat_windows; l; l = l->next) {
        EmpathyChatWindowPriv *priv;
        EmpathyChatWindow     *window;
        GList                *ll;

        window = l->data;
        priv = GET_PRIV (window);

        for (ll = priv->chats; ll; ll = ll->next) {
            EmpathyChat *chat;

            chat = ll->data;

            if (account == empathy_chat_get_account (chat) &&
                !tp_strdiff (id, empathy_chat_get_id (chat)) &&
                sms_channel == empathy_chat_is_sms_channel (chat)) {
                return chat;
            }
        }
    }

    return NULL;
}

void
empathy_chat_window_present_chat (EmpathyChat *chat,
                  gint64 timestamp)
{
    EmpathyChatWindow     *window;
    EmpathyChatWindowPriv *priv;
    guint32 x_timestamp;

    g_return_if_fail (EMPATHY_IS_CHAT (chat));

    window = chat_window_find_chat (chat);

    /* If the chat has no window, create one */
    if (window == NULL) {
        window = empathy_chat_window_get_default (empathy_chat_is_room (chat));
        if (!window) {
            window = empathy_chat_window_new ();

            /* we want to display the newly created window even if we don't present
            * it */
            priv = GET_PRIV (window);
            gtk_widget_show (priv->dialog);
        }

        empathy_chat_window_add_chat (window, chat);
    }

    /* Don't force the window to show itself when it wasn't
     * an action by the user
     */
    if (!tp_user_action_time_should_present (timestamp, &x_timestamp))
        return;

    priv = GET_PRIV (window);

    if (x_timestamp != GDK_CURRENT_TIME) {
        /* Don't present or switch tab if the action was earlier than the
         * last actions X time, accounting for overflow and the first ever
        * presentation */

        if (priv->x_user_action_time != 0
            && X_EARLIER_OR_EQL (x_timestamp, priv->x_user_action_time))
            return;

        priv->x_user_action_time = x_timestamp;
    }

    empathy_chat_window_switch_to_chat (window, chat);

    /* Don't use empathy_window_present_with_time () which would move the window
     * to our current desktop but move to the window's desktop instead. This is
     * more coherent with Shell's 'app is ready' notication which moves the view
     * to the app desktop rather than moving the app itself. */
    empathy_move_to_window_desktop (GTK_WINDOW (priv->dialog), x_timestamp);

    gtk_widget_grab_focus (chat->input_text_view);
}

static void
empathy_chat_window_get_nb_chats (EmpathyChatWindow *self,
                   guint *nb_rooms,
                   guint *nb_private)
{
    EmpathyChatWindowPriv *priv = GET_PRIV (self);
    GList *l;
    guint _nb_rooms = 0, _nb_private = 0;

    for (l = priv->chats; l != NULL; l = g_list_next (l)) {
        if (empathy_chat_is_room (EMPATHY_CHAT (l->data)))
            _nb_rooms++;
        else
            _nb_private++;
    }

    if (nb_rooms != NULL)
        *nb_rooms = _nb_rooms;
    if (nb_private != NULL)
        *nb_private = _nb_private;
}