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path: root/src/empathy-status-icon.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2007-2008 Collabora Ltd.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Authors: Xavier Claessens <xclaesse@gmail.com>
 */

#include <config.h>

#include <string.h>

#include <gtk/gtk.h>
#include <glade/glade.h>
#include <glib/gi18n.h>

#include <telepathy-glib/util.h>

#include <libempathy/empathy-utils.h>
#include <libempathy/empathy-idle.h>
#include <libempathy/empathy-contact-manager.h>
#include <libempathy/empathy-dispatcher.h>
#include <libempathy/empathy-tp-chat.h>
#include <libempathy/empathy-tp-group.h>

#include <libempathy-gtk/empathy-presence-chooser.h>
#include <libempathy-gtk/empathy-conf.h>
#include <libempathy-gtk/empathy-ui-utils.h>
#include <libempathy-gtk/empathy-accounts-dialog.h>
#include <libempathy-gtk/empathy-images.h>
#include <libempathy-gtk/empathy-new-message-dialog.h>
#include <libempathy-gtk/empathy-contact-dialogs.h>

#include "empathy-status-icon.h"
#include "empathy-preferences.h"

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

/* Number of ms to wait when blinking */
#define BLINK_TIMEOUT 500

typedef struct _StatusIconEvent StatusIconEvent;

#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyStatusIcon)
typedef struct {
    GtkStatusIcon      *icon;
    EmpathyIdle        *idle;
    MissionControl     *mc;
    EmpathyDispatcher  *dispatcher;
    EmpathyContactManager *contact_manager;
    GSList             *events;
    gboolean            showing_event_icon;
    guint               blink_timeout;
    gpointer            token;

    GtkWindow          *window;
    GtkWidget          *popup_menu;
    GtkWidget          *show_window_item;
    GtkWidget          *message_item;
    GtkWidget          *status_item;
} EmpathyStatusIconPriv;

typedef void (*StatusIconEventFunc) (EmpathyStatusIcon *icon,
                     gpointer           user_data);

struct _StatusIconEvent {
    gchar               *icon_name;
    gchar               *message;
    StatusIconEventFunc  func;
    gpointer             user_data;
};

G_DEFINE_TYPE (EmpathyStatusIcon, empathy_status_icon, G_TYPE_OBJECT);

static void
status_icon_event_free (StatusIconEvent *event)
{
    g_free (event->icon_name);
    g_free (event->message);
    g_slice_free (StatusIconEvent, event);
}

static void
status_icon_set_visibility (EmpathyStatusIcon *icon,
                gboolean           visible,
                gboolean           store)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);

    if (store) {
        empathy_conf_set_bool (empathy_conf_get (),
                       EMPATHY_PREFS_UI_MAIN_WINDOW_HIDDEN, !visible);
    }

    if (!visible) {
        empathy_window_iconify (priv->window, priv->icon);
    } else {
        GList *accounts;

        empathy_window_present (GTK_WINDOW (priv->window), TRUE);
    
        /* Show the accounts dialog if there is no enabled accounts */
        accounts = mc_accounts_list_by_enabled (TRUE);
        if (accounts) {
            mc_accounts_list_free (accounts);
        } else {
            DEBUG ("No enabled account, Showing account dialog");
            empathy_accounts_dialog_show (GTK_WINDOW (priv->window));
        }
    }
}

static void
status_icon_notify_visibility_cb (EmpathyConf *conf,
                  const gchar *key,
                  gpointer     user_data)
{
    EmpathyStatusIcon *icon = user_data;
    gboolean           hidden = FALSE;

    if (empathy_conf_get_bool (conf, key, &hidden)) {
        status_icon_set_visibility (icon, !hidden, FALSE);
    }
}

static void
status_icon_toggle_visibility (EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);
    gboolean               visible;

    visible = gtk_window_is_active (priv->window);
    status_icon_set_visibility (icon, !visible, TRUE);
}

static void
status_icon_update_tooltip (EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);
    const gchar           *tooltip = NULL;

    if (priv->events) {
        tooltip = ((StatusIconEvent*)priv->events->data)->message;
    }

    if (!tooltip) {
        tooltip = empathy_idle_get_status (priv->idle);
    }

    gtk_status_icon_set_tooltip (priv->icon, tooltip);  
}

static void
status_icon_update_icon (EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);
    const gchar           *icon_name;

    if (priv->events && priv->showing_event_icon) {
        icon_name = ((StatusIconEvent*)priv->events->data)->icon_name;
    } else {
        McPresence state;

        state = empathy_idle_get_state (priv->idle);
        icon_name = empathy_icon_name_for_presence (state);
    }

    gtk_status_icon_set_from_icon_name (priv->icon, icon_name);
}

static void
status_icon_idle_notify_cb (EmpathyStatusIcon *icon)
{
    status_icon_update_icon (icon);
    status_icon_update_tooltip (icon);
}

static gboolean
status_icon_delete_event_cb (GtkWidget         *widget,
                 GdkEvent          *event,
                 EmpathyStatusIcon *icon)
{
    status_icon_set_visibility (icon, FALSE, TRUE);
    return TRUE;
}

static void
status_icon_event_activate (EmpathyStatusIcon *icon,
                StatusIconEvent   *event)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);

    if (event->func) {
        event->func (icon, event->user_data);
    }

    priv->events = g_slist_remove (priv->events, event);
    status_icon_event_free (event);
    status_icon_update_tooltip (icon);
    status_icon_update_icon (icon);

    if (!priv->events && priv->blink_timeout) {
        g_source_remove (priv->blink_timeout);
        priv->blink_timeout = 0;
    }
}

static void
status_icon_activate_cb (GtkStatusIcon     *status_icon,
             EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);

    DEBUG ("Activated: %s", priv->events ? "event" : "toggle");

    if (priv->events) {
        status_icon_event_activate (icon, priv->events->data);
    } else {
        status_icon_toggle_visibility (icon);
    }
}

static void
status_icon_show_hide_window_cb (GtkWidget         *widget,
                 EmpathyStatusIcon *icon)
{
    gboolean visible;

    visible = gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (widget));
    status_icon_set_visibility (icon, visible, TRUE);
}

static void
status_icon_new_message_cb (GtkWidget         *widget,
                EmpathyStatusIcon *icon)
{
    empathy_new_message_dialog_show (NULL);
}

static void
status_icon_quit_cb (GtkWidget         *window,
             EmpathyStatusIcon *icon)
{
    gtk_main_quit ();
}

static void
status_icon_popup_menu_cb (GtkStatusIcon     *status_icon,
               guint              button,
               guint              activate_time,
               EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);
    GtkWidget             *submenu;
    gboolean               show;

    show = empathy_window_get_is_visible (GTK_WINDOW (priv->window));

    g_signal_handlers_block_by_func (priv->show_window_item,
                     status_icon_show_hide_window_cb,
                     icon);
    gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (priv->show_window_item),
                    show);
    g_signal_handlers_unblock_by_func (priv->show_window_item,
                       status_icon_show_hide_window_cb,
                       icon);

    submenu = empathy_presence_chooser_create_menu ();
    gtk_menu_item_set_submenu (GTK_MENU_ITEM (priv->status_item),
                   submenu);

    gtk_menu_popup (GTK_MENU (priv->popup_menu),
            NULL, NULL,
            gtk_status_icon_position_menu,
            priv->icon,
            button,
            activate_time);
}

static void
status_icon_create_menu (EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);
    GladeXML              *glade;
    gchar                 *filename;

    filename = empathy_file_lookup ("empathy-status-icon.glade", "src");
    glade = empathy_glade_get_file (filename,
                       "tray_menu",
                       NULL,
                       "tray_menu", &priv->popup_menu,
                       "tray_show_list", &priv->show_window_item,
                       "tray_new_message", &priv->message_item,
                       "tray_status", &priv->status_item,
                       NULL);
    g_free (filename);

    empathy_glade_connect (glade,
                  icon,
                  "tray_show_list", "toggled", status_icon_show_hide_window_cb,
                  "tray_new_message", "activate", status_icon_new_message_cb,
                  "tray_quit", "activate", status_icon_quit_cb,
                  NULL);

    g_object_unref (glade);
}

static gboolean
status_icon_blink_timeout_cb (EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);

    priv->showing_event_icon = !priv->showing_event_icon;
    status_icon_update_icon (icon);

    return TRUE;
}

static void
status_icon_event_add (EmpathyStatusIcon   *icon,
               const gchar         *icon_name,
               const gchar         *message,
               StatusIconEventFunc  func,
               gpointer             user_data)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);
    StatusIconEvent       *event;
    gboolean               had_events;

    DEBUG ("Adding event: %s", message);

    event = g_slice_new (StatusIconEvent);
    event->icon_name = g_strdup (icon_name);
    event->message = g_strdup (message);
    event->func = func;
    event->user_data = user_data;

    had_events = (priv->events != NULL);
    priv->events = g_slist_append (priv->events, event);
    if (!had_events) {
        priv->showing_event_icon = TRUE;
        status_icon_update_icon (icon);
        status_icon_update_tooltip (icon);

        if (!priv->blink_timeout) {
            priv->blink_timeout = g_timeout_add (BLINK_TIMEOUT,
                                 (GSourceFunc) status_icon_blink_timeout_cb,
                                 icon);
        }
    }
}

static void
status_icon_channel_process (EmpathyStatusIcon *icon,
                 gpointer           user_data)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);
    TpChannel             *channel = TP_CHANNEL (user_data);

    empathy_dispatcher_channel_process (priv->dispatcher, channel);
    g_object_unref (channel);
}

static gboolean
status_icon_chat_unref_idle (gpointer user_data)
{
    g_object_unref (user_data);
    return FALSE;
}

static void
status_icon_chat_message_received_cb (EmpathyTpChat     *tp_chat,
                      EmpathyMessage    *message,
                      EmpathyStatusIcon *icon)
{
    EmpathyContact  *sender;
    gchar           *msg;
    TpChannel       *channel;

    g_idle_add (status_icon_chat_unref_idle, tp_chat);
    g_signal_handlers_disconnect_by_func (tp_chat,
                          status_icon_chat_message_received_cb,
                          icon);

    sender = empathy_message_get_sender (message);
    msg = g_strdup_printf (_("New message from %s:\n%s"),
                   empathy_contact_get_name (sender),
                   empathy_message_get_body (message));

    channel = empathy_tp_chat_get_channel (tp_chat);
    status_icon_event_add (icon, EMPATHY_IMAGE_NEW_MESSAGE, msg,
                   status_icon_channel_process,
                   g_object_ref (channel));

    g_free (msg);
}

static void
status_icon_filter_channel_cb (EmpathyDispatcher *dispatcher,
                   TpChannel         *channel,
                   EmpathyStatusIcon *icon)
{
    gchar *channel_type;

    g_object_get (channel, "channel-type", &channel_type, NULL);
    if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_TEXT)) {
        EmpathyTpChat *tp_chat;

        tp_chat = empathy_tp_chat_new (channel);
        g_signal_connect (tp_chat, "message-received",
                  G_CALLBACK (status_icon_chat_message_received_cb),
                  icon);
    }
    else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA)) {
        EmpathyTpGroup *tp_group;
        EmpathyContact *contact;
        gchar          *msg;

        tp_group = empathy_tp_group_new (channel);
        empathy_run_until_ready (tp_group);
        empathy_tp_group_get_invitation (tp_group, &contact);
        empathy_contact_run_until_ready (contact,
                         EMPATHY_CONTACT_READY_NAME,
                         NULL);

        msg = g_strdup_printf (_("Incoming call from %s"),
                       empathy_contact_get_name (contact));

        status_icon_event_add (icon, EMPATHY_IMAGE_VOIP, msg,
                       status_icon_channel_process,
                       g_object_ref (channel));

        g_free (msg);
        g_object_unref (contact);
        g_object_unref (tp_group);
    }

    g_free (channel_type);
}

static void
status_icon_tube_process (EmpathyStatusIcon *icon,
              gpointer           user_data)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);
    EmpathyDispatcherTube *tube = (EmpathyDispatcherTube*) user_data;

    if (tube->activatable) {
        empathy_dispatcher_tube_process (priv->dispatcher, tube);
    } else {
        GtkWidget *dialog;
        gchar     *str;

        /* Tell the user that the tube can't be handled */
        str = g_strdup_printf (_("%s offered you an invitation, but "
                     "you don't have the needed external "
                     "application to handle it."),
                       empathy_contact_get_name (tube->initiator));

        dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL,
                         GTK_MESSAGE_ERROR,
                         GTK_BUTTONS_OK, str);
        gtk_window_set_title (GTK_WINDOW (dialog),
                      _("Invitation Error"));
        g_free (str);

        gtk_widget_show (dialog);
        g_signal_connect (dialog, "response",
                  G_CALLBACK (gtk_widget_destroy),
                  NULL);
    }

    empathy_dispatcher_tube_unref (tube);
}

static void
status_icon_filter_tube_cb (EmpathyDispatcher     *dispatcher,
                EmpathyDispatcherTube *tube,
                EmpathyStatusIcon     *icon)
{
    const gchar *icon_name;
    gchar       *msg;

    empathy_contact_run_until_ready (tube->initiator,
                     EMPATHY_CONTACT_READY_NAME, NULL);

    if (tube->activatable) {
        icon_name = GTK_STOCK_EXECUTE;
        msg = g_strdup_printf (_("%s is offering you an invitation. An external "
                     "application will be started to handle it."),
                       empathy_contact_get_name (tube->initiator));
    } else {
        icon_name = GTK_STOCK_DIALOG_ERROR;
        msg = g_strdup_printf (_("%s is offering you an invitation, but "
                     "you don't have the needed external "
                     "application to handle it."),
                       empathy_contact_get_name (tube->initiator));
    }

    status_icon_event_add (icon, icon_name, msg, status_icon_tube_process,
                   empathy_dispatcher_tube_ref (tube));

    g_free (msg);
}

static void
status_icon_pending_subscribe (EmpathyStatusIcon *icon,
                   gpointer           user_data)
{
    EmpathyContact *contact = EMPATHY_CONTACT (user_data);

    empathy_subscription_dialog_show (contact, NULL);
    g_object_unref (contact);
}

static void
status_icon_pendings_changed_cb (EmpathyContactList *list,
                 EmpathyContact     *contact,
                 EmpathyContact     *actor,
                 guint               reason,
                 gchar              *message,
                 gboolean            is_pending,
                 EmpathyStatusIcon  *icon)
{
    GString *str;

    if (!is_pending) {
        /* FIXME: remove event if any */
        return;
    }

    DEBUG ("New local pending contact");

    empathy_contact_run_until_ready (contact,
                     EMPATHY_CONTACT_READY_NAME,
                     NULL);

    str = g_string_new (NULL);
    g_string_printf (str, _("Subscription requested by %s"),
             empathy_contact_get_name (contact));   
    if (!G_STR_EMPTY (message)) {
        g_string_append_printf (str, _("\nMessage: %s"), message);
    }

    status_icon_event_add (icon, GTK_STOCK_DIALOG_QUESTION, str->str,
                   status_icon_pending_subscribe,
                   g_object_ref (contact));

    g_string_free (str, TRUE);
}

static void
status_icon_finalize (GObject *object)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (object);

    if (priv->blink_timeout) {
        g_source_remove (priv->blink_timeout);
    }

    empathy_disconnect_account_status_changed (priv->token);
    g_slist_foreach (priv->events, (GFunc) status_icon_event_free, NULL);
    g_slist_free (priv->events);

    g_object_unref (priv->icon);
    g_object_unref (priv->idle);
    g_object_unref (priv->mc);
    g_object_unref (priv->contact_manager);
}

static void
empathy_status_icon_class_init (EmpathyStatusIconClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);

    object_class->finalize = status_icon_finalize;

    g_type_class_add_private (object_class, sizeof (EmpathyStatusIconPriv));
}

static void
status_icon_status_changed_cb (MissionControl           *mc,
                   TpConnectionStatus        status,
                   McPresence                presence,
                   TpConnectionStatusReason  reason,
                   const gchar              *unique_name,
                   EmpathyStatusIcon        *icon)
{
    EmpathyStatusIconPriv *priv = GET_PRIV (icon);
    GList                 *accounts, *l;
    guint                  connection_status = 1;

    /* Check for a connected account */
    accounts = mc_accounts_list_by_enabled (TRUE);
    for (l = accounts; l; l = l->next) {
        connection_status = mission_control_get_connection_status (priv->mc,
                                       l->data,
                                       NULL);
        if (connection_status == 0) {
            break;
        }
    }
    mc_accounts_list_free (accounts);

    gtk_widget_set_sensitive (priv->message_item, connection_status == 0);
}

static void
empathy_status_icon_init (EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (icon,
        EMPATHY_TYPE_STATUS_ICON, EmpathyStatusIconPriv);

    icon->priv = priv;
    priv->icon = gtk_status_icon_new ();
    priv->mc = empathy_mission_control_new ();
    priv->idle = empathy_idle_new ();
    priv->dispatcher = empathy_dispatcher_new ();
    priv->contact_manager = empathy_contact_manager_new ();
    priv->token = empathy_connect_to_account_status_changed (priv->mc,
            G_CALLBACK (status_icon_status_changed_cb),
            icon, NULL);

    /* make icon listen and respond to MAIN_WINDOW_HIDDEN changes */
    empathy_conf_notify_add (empathy_conf_get (),
                 EMPATHY_PREFS_UI_MAIN_WINDOW_HIDDEN,
                 status_icon_notify_visibility_cb,
                 icon);

    status_icon_create_menu (icon);
    status_icon_idle_notify_cb (icon);

    g_signal_connect_swapped (priv->idle, "notify",
                  G_CALLBACK (status_icon_idle_notify_cb),
                  icon);
    g_signal_connect (priv->dispatcher, "filter-channel",
              G_CALLBACK (status_icon_filter_channel_cb),
              icon);
    g_signal_connect (priv->dispatcher, "filter-tube",
              G_CALLBACK (status_icon_filter_tube_cb),
              icon);
    g_signal_connect (priv->contact_manager, "pendings-changed",
              G_CALLBACK (status_icon_pendings_changed_cb),
              icon);
    g_signal_connect (priv->icon, "activate",
              G_CALLBACK (status_icon_activate_cb),
              icon);
    g_signal_connect (priv->icon, "popup-menu",
              G_CALLBACK (status_icon_popup_menu_cb),
              icon);
}

EmpathyStatusIcon *
empathy_status_icon_new (GtkWindow *window)
{
    EmpathyStatusIconPriv *priv;
    EmpathyStatusIcon     *icon;
    gboolean               should_hide;

    g_return_val_if_fail (GTK_IS_WINDOW (window), NULL);

    icon = g_object_new (EMPATHY_TYPE_STATUS_ICON, NULL);
    priv = GET_PRIV (icon);

    priv->window = g_object_ref (window);

    g_signal_connect (priv->window, "delete-event",
              G_CALLBACK (status_icon_delete_event_cb),
              icon);

    empathy_conf_get_bool (empathy_conf_get (),
                  EMPATHY_PREFS_UI_MAIN_WINDOW_HIDDEN,
                  &should_hide);

    if (gtk_window_is_active (priv->window) == should_hide) {
        status_icon_set_visibility (icon, !should_hide, FALSE);
    }

    return icon;
}