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path: root/libempathy-gtk/empathy-status-icon.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2007 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., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, 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 <libmissioncontrol/mission-control.h>

#include <libempathy/empathy-contact-list.h>
#include <libempathy/empathy-contact-manager.h>
#include <libempathy/empathy-contact.h>
#include <libempathy/empathy-tp-chat.h>
#include <libempathy/empathy-debug.h>
#include <libempathy/empathy-utils.h>
#include <libempathy/empathy-conf.h>
#include <libempathy/empathy-idle.h>
#include <libempathy/empathy-filter.h>

#include "empathy-status-icon.h"
#include "empathy-contact-dialogs.h"
#include "empathy-presence-chooser.h"
#include "empathy-preferences.h"
#include "empathy-ui-utils.h"
#include "empathy-accounts-dialog.h"
#include "empathy-images.h"


#define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
               EMPATHY_TYPE_STATUS_ICON, EmpathyStatusIconPriv))

#define DEBUG_DOMAIN "StatusIcon"

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

typedef struct _StatusIconEvent StatusIconEvent;

struct _EmpathyStatusIconPriv {
    GtkStatusIcon         *icon;
    EmpathyContactManager *manager;
    EmpathyFilter         *text_filter;
    EmpathyIdle           *idle;
    MissionControl        *mc;
    GList                 *events;
    gboolean               showing_event_icon;
    StatusIconEvent       *flash_state_event;
    guint                  blink_timeout;

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

typedef void (*EventActivatedFunc) (StatusIconEvent *event);

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


static void       empathy_status_icon_class_init  (EmpathyStatusIconClass *klass);
static void       empathy_status_icon_init        (EmpathyStatusIcon      *icon);
static void       status_icon_finalize            (GObject                *object);
static void       status_icon_filter_new_channel  (EmpathyFilter          *filter,
                           TpConn                 *tp_conn,
                           TpChan                 *tp_chan,
                           EmpathyStatusIcon      *icon);
static void       status_icon_message_received_cb (EmpathyTpChat          *tp_chat,
                           EmpathyMessage         *message,
                           EmpathyStatusIcon      *icon);
static void       status_icon_idle_notify_cb      (EmpathyStatusIcon      *icon);
static void       status_icon_update_tooltip      (EmpathyStatusIcon      *icon);
static void       status_icon_set_from_state      (EmpathyStatusIcon      *icon);
static void       status_icon_toggle_visibility   (EmpathyStatusIcon      *icon);
static void       status_icon_activate_cb         (GtkStatusIcon          *status_icon,
                           EmpathyStatusIcon      *icon);
static gboolean   status_icon_delete_event_cb     (GtkWidget              *widget,
                           GdkEvent               *event,
                           EmpathyStatusIcon      *icon);
static void       status_icon_popup_menu_cb       (GtkStatusIcon          *status_icon,
                           guint                   button,
                           guint                   activate_time,
                           EmpathyStatusIcon      *icon);
static void       status_icon_create_menu         (EmpathyStatusIcon      *icon);
static void       status_icon_new_message_cb      (GtkWidget              *widget,
                           EmpathyStatusIcon      *icon);
static void       status_icon_quit_cb             (GtkWidget              *window,
                           EmpathyStatusIcon      *icon);
static void       status_icon_show_hide_window_cb (GtkWidget              *widget,
                           EmpathyStatusIcon      *icon);
static void       status_icon_local_pending_cb    (EmpathyContactManager  *manager,
                           EmpathyContact          *contact,
                           gchar                  *message,
                           EmpathyStatusIcon      *icon);
static void       status_icon_event_subscribe_cb  (StatusIconEvent        *event);
static void       status_icon_event_flash_state_cb (StatusIconEvent       *event);
static void       status_icon_event_msg_cb        (StatusIconEvent        *event);
static StatusIconEvent * status_icon_event_new    (EmpathyStatusIcon      *icon,
                           const gchar            *icon_name,
                           const gchar            *message);
static void       status_icon_event_remove        (EmpathyStatusIcon      *icon,
                           StatusIconEvent        *event);
static gboolean   status_icon_event_timeout_cb    (EmpathyStatusIcon      *icon);
static void       status_icon_event_free          (StatusIconEvent        *event);

G_DEFINE_TYPE (EmpathyStatusIcon, empathy_status_icon, G_TYPE_OBJECT);

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
empathy_status_icon_init (EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv;
    GList                 *pending, *l;

    priv = GET_PRIV (icon);

    priv->icon = gtk_status_icon_new ();
    priv->idle = empathy_idle_new ();
    priv->manager = empathy_contact_manager_new ();
    priv->mc = empathy_mission_control_new ();
    priv->text_filter = empathy_filter_new ("org.gnome.Empathy.Chat",
                        "/org/freedesktop/Telepathy/Filter",
                        TP_IFACE_CHANNEL_TYPE_TEXT,
                        MC_FILTER_PRIORITY_DIALOG,
                        MC_FILTER_FLAG_INCOMING);

    status_icon_create_menu (icon);
    status_icon_idle_notify_cb (icon);

    g_signal_connect (priv->text_filter, "new-channel",
              G_CALLBACK (status_icon_filter_new_channel),
              icon);
    g_signal_connect_swapped (priv->idle, "notify",
                  G_CALLBACK (status_icon_idle_notify_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);
    g_signal_connect (priv->manager, "local-pending",
              G_CALLBACK (status_icon_local_pending_cb),
              icon);

    pending = empathy_contact_list_get_local_pending (EMPATHY_CONTACT_LIST (priv->manager));
    for (l = pending; l; l = l->next) {
        EmpathyContactListInfo *info;

        info = l->data;
        status_icon_local_pending_cb (priv->manager,
                          info->contact,
                          info->message,
                          icon);
    }
    g_list_free (pending);
}

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

    priv = GET_PRIV (object);

    g_list_foreach (priv->events, (GFunc) status_icon_event_free, NULL);
    g_list_free (priv->events);

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

    g_object_unref (priv->icon);
    g_object_unref (priv->window);
    g_object_unref (priv->idle);
    g_object_unref (priv->manager);
    g_object_unref (priv->mc);
}

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

    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);
    visible = empathy_window_get_is_visible (window);

    if ((!should_hide && !visible) || (should_hide && visible)) {
        status_icon_toggle_visibility (icon);
    }

    return icon;
}

static void
status_icon_filter_new_channel (EmpathyFilter     *filter,
                TpConn            *tp_conn,
                TpChan            *tp_chan,
                EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv;
    McAccount             *account;
    EmpathyTpChat         *tp_chat;
    GList                 *messages;

    priv = GET_PRIV (icon);

    account = mission_control_get_account_for_connection (priv->mc, tp_conn, NULL);

    empathy_debug (DEBUG_DOMAIN, "New text channel to be filtered for contact %s",
               empathy_inspect_channel (account, tp_chan));

    tp_chat = empathy_tp_chat_new (account, tp_chan);
    g_object_set_data (G_OBJECT (tp_chat), "filter", filter);
    g_object_unref (account);

    messages = empathy_tp_chat_get_pendings (tp_chat);
    if (!messages) {
        empathy_debug (DEBUG_DOMAIN, "No pending msg, waiting...");
        g_signal_connect (tp_chat, "message-received",
                  G_CALLBACK (status_icon_message_received_cb),
                  icon);
        return;
    }

    status_icon_message_received_cb (tp_chat, messages->data, icon);

    g_list_foreach (messages, (GFunc) g_object_unref, NULL);
    g_list_free (messages);
}

static void
status_icon_message_received_cb (EmpathyTpChat     *tp_chat,
                 EmpathyMessage    *message,
                 EmpathyStatusIcon *icon)
{
    EmpathyContact  *sender;
    gchar           *msg;
    StatusIconEvent *event;

    empathy_debug (DEBUG_DOMAIN, "Message received, add event");

    g_signal_handlers_disconnect_by_func (tp_chat,
                          status_icon_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));

    event = status_icon_event_new (icon, EMPATHY_IMAGE_NEW_MESSAGE, msg);
    event->func = status_icon_event_msg_cb;
    event->user_data = tp_chat;
}

static void
status_icon_idle_notify_cb (EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv;
    McPresence             flash_state;

    priv = GET_PRIV (icon);

    flash_state = empathy_idle_get_flash_state (priv->idle);
    if (flash_state != MC_PRESENCE_UNSET) {
        const gchar *icon_name;

        icon_name = empathy_icon_name_for_presence_state (flash_state);
        if (!priv->flash_state_event) {
            /* We are now flashing */
            priv->flash_state_event = status_icon_event_new (icon, icon_name, NULL);
            priv->flash_state_event->user_data = icon;
            priv->flash_state_event->func = status_icon_event_flash_state_cb;
        } else {
            /* We are still flashing but with another state */
            g_free (priv->flash_state_event->icon_name);
            priv->flash_state_event->icon_name = g_strdup (icon_name);
        }
    }
    else if (priv->flash_state_event) {
        /* We are no more flashing */
        status_icon_event_remove (icon, priv->flash_state_event);
        priv->flash_state_event = NULL;
    }

    if (!priv->showing_event_icon) {
        status_icon_set_from_state (icon);
    }

    status_icon_update_tooltip (icon);
}

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

    priv = GET_PRIV (icon);

    if (priv->events) {
        StatusIconEvent *event;

        event = priv->events->data;
        tooltip = event->message;
    }

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

    gtk_status_icon_set_tooltip (priv->icon, tooltip);  
}

static void
status_icon_set_from_state (EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv;
    McPresence             state;
    const gchar           *icon_name;

    priv = GET_PRIV (icon);

    state = empathy_idle_get_state (priv->idle);
    icon_name = empathy_icon_name_for_presence_state (state);
    gtk_status_icon_set_from_icon_name (priv->icon, icon_name);
}

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

    priv = GET_PRIV (icon);

    visible = gtk_window_has_toplevel_focus (GTK_WINDOW (priv->window));

    if (visible) {
        empathy_window_iconify (priv->window, priv->icon);
        empathy_conf_set_bool (empathy_conf_get (),
                      EMPATHY_PREFS_UI_MAIN_WINDOW_HIDDEN, TRUE);
    } else {
        GList *accounts;

        empathy_window_present (GTK_WINDOW (priv->window), TRUE);
        empathy_conf_set_bool (empathy_conf_get (),
                      EMPATHY_PREFS_UI_MAIN_WINDOW_HIDDEN, FALSE);
    
        /* 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 {
            empathy_debug (DEBUG_DOMAIN,
                      "No enabled account, Showing account dialog");
            empathy_accounts_dialog_show (GTK_WINDOW (priv->window));
        }
    }
}

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

    priv = GET_PRIV (icon);

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

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

static gboolean
status_icon_delete_event_cb (GtkWidget         *widget,
                 GdkEvent          *event,
                 EmpathyStatusIcon *icon)
{
    status_icon_toggle_visibility (icon);

    return TRUE;
}

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

    priv = GET_PRIV (icon);

    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;
    GladeXML              *glade;

    priv = GET_PRIV (icon);

    glade = empathy_glade_get_file ("empathy-status-icon.glade",
                       "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);

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

    g_signal_connect (priv->show_window_item, "toggled",
              G_CALLBACK (status_icon_show_hide_window_cb),
              icon);

    g_object_unref (glade);
}

static void
status_icon_new_message_cb (GtkWidget         *widget,
                EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv;

    priv = GET_PRIV (icon);

    //empathy_new_message_dialog_show (GTK_WINDOW (priv->window));
}

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

static void
status_icon_show_hide_window_cb (GtkWidget         *widget,
                 EmpathyStatusIcon *icon)
{
    status_icon_toggle_visibility (icon);
}

static void
status_icon_local_pending_cb (EmpathyContactManager *manager,
                  EmpathyContact         *contact,
                  gchar                 *message,
                  EmpathyStatusIcon     *icon)
{
    EmpathyStatusIconPriv *priv;
    StatusIconEvent       *event;
    gchar                 *str;
    GList                 *l;

    priv = GET_PRIV (icon);

    for (l = priv->events; l; l = l->next) {
        if (empathy_contact_equal (contact, ((StatusIconEvent*)l->data)->user_data)) {
            return;
        }
    }

    str = g_strdup_printf (_("Subscription requested for %s\n"
                 "Message: %s"),
                   empathy_contact_get_name (contact),
                   message);

    event = status_icon_event_new (icon, GTK_STOCK_DIALOG_QUESTION, str);
    event->user_data = g_object_ref (contact);
    event->func = status_icon_event_subscribe_cb;

    g_free (str);
}

static void
status_icon_event_subscribe_cb (StatusIconEvent *event)
{
    EmpathyContact *contact;

    contact = EMPATHY_CONTACT (event->user_data);

    empathy_subscription_dialog_show (contact, NULL);

    g_object_unref (contact);
}

static void
status_icon_event_flash_state_cb (StatusIconEvent *event)
{
    EmpathyStatusIconPriv *priv;

    priv = GET_PRIV (event->user_data);

    empathy_idle_set_flash_state (priv->idle, MC_PRESENCE_UNSET);
}

static void
status_icon_event_msg_cb (StatusIconEvent *event)
{
    EmpathyFilter *filter;
    EmpathyTpChat *tp_chat;

    empathy_debug (DEBUG_DOMAIN, "Dispatching text channel");

    tp_chat = event->user_data;
    filter = g_object_get_data (G_OBJECT (tp_chat), "filter");
    empathy_filter_process (filter,
                empathy_tp_chat_get_channel (tp_chat),
                TRUE);
    g_object_unref (tp_chat);
}

static StatusIconEvent *
status_icon_event_new (EmpathyStatusIcon *icon,
               const gchar       *icon_name,
               const gchar       *message)
{
    EmpathyStatusIconPriv *priv;
    StatusIconEvent       *event;

    priv = GET_PRIV (icon);

    event = g_slice_new0 (StatusIconEvent);
    event->icon_name = g_strdup (icon_name);    
    event->message = g_strdup (message);

    priv->events = g_list_append (priv->events, event);
    if (!priv->blink_timeout) {
        priv->showing_event_icon = FALSE;
        priv->blink_timeout = g_timeout_add (BLINK_TIMEOUT,
                             (GSourceFunc) status_icon_event_timeout_cb,
                             icon);
        status_icon_event_timeout_cb (icon);
    }

    return event;
}

static void
status_icon_event_remove (EmpathyStatusIcon *icon,
              StatusIconEvent   *event)
{
    EmpathyStatusIconPriv *priv;

    priv = GET_PRIV (icon);

    if (event->func) {
        event->func (event);
    }
    priv->events = g_list_remove (priv->events, event);
    status_icon_event_free (event);
    priv->showing_event_icon = FALSE;
    status_icon_update_tooltip (icon);
    status_icon_set_from_state (icon);

    if (priv->events) {
        return;
    }

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

static gboolean
status_icon_event_timeout_cb (EmpathyStatusIcon *icon)
{
    EmpathyStatusIconPriv *priv;

    priv = GET_PRIV (icon);

    priv->showing_event_icon = !priv->showing_event_icon;

    if (!priv->showing_event_icon) {
        status_icon_set_from_state (icon);
    } else {
        StatusIconEvent *event;

        event = priv->events->data;
        gtk_status_icon_set_from_icon_name (priv->icon, event->icon_name);
    }
    status_icon_update_tooltip (icon);

    return TRUE;
}

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