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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2007 Elliot Fairweather
 * Copyright (C) 2007 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: Elliot Fairweather <elliot.fairweather@collabora.co.uk>
 *          Xavier Claessens <xclaesse@gmail.com>
 */

#include "config.h"

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

#include <libempathy/empathy-debug.h>

#include "empathy-call-window.h"
#include "empathy-ui-utils.h"

#define DEBUG_DOMAIN "CallWindow"

typedef struct {
    GtkWidget     *window;
    GtkWidget     *input_volume_scale;
    GtkWidget     *output_volume_scale;
    GtkWidget     *input_mute_togglebutton;
    GtkWidget     *output_mute_togglebutton;
    GtkWidget     *preview_video_frame;
    GtkWidget     *output_video_frame;
    GtkWidget     *preview_video_socket;
    GtkWidget     *output_video_socket;
    GtkWidget     *send_video_checkbutton;

    EmpathyTpCall *call;
} EmpathyCallWindow;

static void
call_window_output_volume_changed_cb (GtkWidget         *scale,
                      EmpathyCallWindow *window)
{
    guint volume;

    volume = (guint) gtk_range_get_value (GTK_RANGE (scale));
    empathy_tp_call_set_output_volume (window->call, volume);
}


static void
call_window_output_mute_toggled_cb (GtkWidget         *button,
                    EmpathyCallWindow *window)
{
    gboolean is_muted;

    is_muted = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button));
    empathy_tp_call_mute_output (window->call, is_muted);
}


static void
call_window_input_mute_toggled_cb (GtkWidget         *button,
                   EmpathyCallWindow *window)
{
    gboolean is_muted;

    is_muted = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button));
    empathy_tp_call_mute_input (window->call, is_muted);
}


static void
call_window_send_video_toggled_cb (GtkWidget         *button,
                   EmpathyCallWindow *window)
{
    gboolean is_sending;

    is_sending = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button));
    empathy_tp_call_send_video (window->call, is_sending);
}

static void
call_window_capabilities_notify_cb (EmpathyContact    *contact,
                    GParamSpec        *param,
                    EmpathyCallWindow *window)
{
    EmpathyCapabilities capabilities;

    capabilities = empathy_contact_get_capabilities (contact);
    empathy_tp_call_request_streams (window->call,
                     capabilities & EMPATHY_CAPABILITIES_AUDIO,
                     capabilities & EMPATHY_CAPABILITIES_VIDEO);
}

static void
call_window_name_notify_cb (EmpathyContact    *contact,
                GParamSpec        *param,
                EmpathyCallWindow *window)
{
    const gchar *name;
    gchar       *title;

    name = empathy_contact_get_name (contact);
    title = g_strdup_printf (_("Call from %s"), name);
    gtk_window_set_title (GTK_WINDOW (window->window), title);
    g_free (title);
}

static void
call_window_status_notify_cb (EmpathyTpCall     *call,
                  GParamSpec        *param,
                  EmpathyCallWindow *window)
{
    guint status;

    status = empathy_tp_call_get_status (call);
    empathy_debug (DEBUG_DOMAIN, "Status changed to %d",
               status);

    if (status == EMPATHY_TP_CALL_STATUS_RINGING) {
        if (empathy_tp_call_is_incoming (window->call)) {
            empathy_tp_call_accept (window->call);
        } else {
            EmpathyContact *contact;

            contact = empathy_tp_call_get_contact (call);
            g_signal_connect (contact, "notify::capabilities",
                      G_CALLBACK (call_window_capabilities_notify_cb),
                      window);
            g_signal_connect (contact, "notify::name",
                      G_CALLBACK (call_window_name_notify_cb),
                      window);
            call_window_capabilities_notify_cb (contact, NULL, window);
            call_window_name_notify_cb (contact, NULL, window);
        }
    }

    if (status == EMPATHY_TP_CALL_STATUS_RUNNING) {
        empathy_tp_call_set_output_window (window->call,
            gtk_socket_get_id (GTK_SOCKET (window->output_video_socket)));
    }
}

static void
call_window_destroy_cb (GtkWidget         *widget,
            EmpathyCallWindow *window)
{
    g_object_unref (window->call);
    g_slice_free (EmpathyCallWindow, window);
}

GtkWidget *
empathy_call_window_show (EmpathyTpCall *call)
{
    EmpathyCallWindow *window;
    GladeXML          *glade;

    window = g_slice_new0 (EmpathyCallWindow);

    glade = empathy_glade_get_file ("empathy-call-window.glade",
                    "window",
                    NULL,
                    "window", &window->window,
                    "input_volume_scale", &window->input_volume_scale,
                    "output_volume_scale", &window->output_volume_scale,
                    "input_mute_togglebutton", &window->input_mute_togglebutton,
                    "output_mute_togglebutton", &window->output_mute_togglebutton,
                    "preview_video_frame", &window->preview_video_frame,
                    "output_video_frame", &window->output_video_frame,
                    "send_video_checkbutton", &window->send_video_checkbutton,
                    NULL);

    empathy_glade_connect (glade,
                   window,
                   "window", "destroy", call_window_destroy_cb,
                   "input_mute_togglebutton", "toggled", call_window_input_mute_toggled_cb,
                   "output_mute_togglebutton", "toggled", call_window_output_mute_toggled_cb,
                   "output_volume_scale", "value-changed", call_window_output_volume_changed_cb,
                   "send_video_checkbutton", "toggled", call_window_send_video_toggled_cb,
                   NULL);
    g_object_unref (glade);

    /* Set output window socket */
    window->output_video_socket = gtk_socket_new ();
    gtk_widget_show (window->output_video_socket);
    gtk_container_add (GTK_CONTAINER (window->output_video_frame),
               window->output_video_socket);

    /* Set preview window socket */
    window->preview_video_socket = gtk_socket_new ();
    gtk_widget_show (window->preview_video_socket);
    gtk_container_add (GTK_CONTAINER (window->preview_video_frame),
               window->preview_video_socket);

    /* Setup TpCall */
    window->call = g_object_ref (call);
    empathy_tp_call_add_preview_window (window->call,
        gtk_socket_get_id (GTK_SOCKET (window->preview_video_socket)));
    g_signal_connect (window->call, "notify::status",
              G_CALLBACK (call_window_status_notify_cb),
              window);

    gtk_widget_show (window->window);

    return window->window;
}