/*
 * tp-channel-iface.c - Stubs for Telepathy Channel interface
 *
 * Copyright (C) 2006 Collabora Ltd.
 * Copyright (C) 2006 Nokia Corporation
 *
 * 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
 */

/**
 * SECTION:channel-iface
 * @title: TpChannelIface
 * @short_description: interface representing basic channel properties
 * @see_also: #TpSvcChannel, #TpChannelFactoryIface
 *
 * This interface defines a basic set of channel properties. It's mainly
 * used in #TpChannelFactoryIface to represent the returned channel objects.
 */

#include "config.h"

#include <telepathy-glib/channel-iface.h>
#include <telepathy-glib/handle.h>

static void
tp_channel_iface_base_init (gpointer klass)
{
  static gboolean initialized = FALSE;

  if (!initialized) {
    GParamSpec *param_spec;

    initialized = TRUE;

    /**
     * TpChannelIface:object-path:
     *
     * The D-Bus object path used for this object on the bus. Read-only
     * except during construction.
     */
    param_spec = g_param_spec_string ("object-path", "D-Bus object path",
        "The D-Bus object path used for this object on the bus.", NULL,
        G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
    g_object_interface_install_property (klass, param_spec);

    /**
     * TpChannelIface:channel-type:
     *
     * The D-Bus interface representing the type of this channel. Read-only
     * except during construction.
     *
     * In #TpChannel this property is read-only except during construction;
     * if %NULL during construction (the default), we ask the remote D-Bus
     * object what its channel type is, and reading this property will yield
     * %NULL until a reply is received. This is not guaranteed to have happened
     * until tp_proxy_prepare_async() has finished preparing
     * %TP_CHANNEL_FEATURE_CORE.
     *
     * In connection manager implementations, attempts to set this property
     * during construction will usually be ignored or treated as an
     * error.
     */
    param_spec = g_param_spec_string ("channel-type", "Telepathy channel type",
        "The D-Bus interface representing the type of this channel.",
        NULL,
        G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
    g_object_interface_install_property (klass, param_spec);

    /**
     * TpChannelIface:handle-type:
     *
     * The #TpHandleType of this channel's associated handle, or
     * %TP_HANDLE_TYPE_NONE (which is numerically 0) if no handle.
     *
     * In #TpChannel, if this is TP_UNKNOWN_HANDLE_TYPE
     * during construction, we ask the remote D-Bus object what its
     * handle type is; reading this property will yield TP_UNKNOWN_HANDLE_TYPE
     * until we get the reply. This is not guaranteed to be have happened
     * until tp_proxy_prepare_async() has finished preparing
     * %TP_CHANNEL_FEATURE_CORE.
     *
     * In connection manager implementations, attempts to set this during
     * construction might also be ignored.
     */
    param_spec = g_param_spec_uint ("handle-type", "Handle type",
        "The TpHandleType of this channel's associated handle.",
        0, G_MAXUINT32, TP_UNKNOWN_HANDLE_TYPE,
        G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
    g_object_interface_install_property (klass, param_spec);

    /**
     * TpChannelIface:handle:
     *
     * This channel's associated handle, or 0 if no handle or unknown.
     * Read-only except during construction.
     *
     * In #TpChannel, if this is 0
     * during construction, and handle-type is not TP_HANDLE_TYPE_NONE (== 0),
     * we ask the remote D-Bus object what its handle type is; reading this
     * property will yield 0 until we get the reply, or if GetHandle()
     * fails. This is not guaranteed to be set until tp_proxy_prepare_async()
     * has finished preparing %TP_CHANNEL_FEATURE_CORE.
     *
     * In connection manager implementations, attempts to set this during
     * construction might be ignored, depending on the channel type.
     */
    param_spec = g_param_spec_uint ("handle", "Handle",
        "The TpHandle representing the contact, group, etc. with which "
        "this channel communicates, whose type is given by the handle-type "
        "property.",
        0, G_MAXUINT32, 0,
        G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
    g_object_interface_install_property (klass, param_spec);
  }
}

GType
tp_channel_iface_get_type (void)
{
  static GType type = 0;

  if (type == 0) {
    static const GTypeInfo info = {
      sizeof (TpChannelIfaceClass),
      tp_channel_iface_base_init,   /* base_init */
      NULL,   /* base_finalize */
      NULL,   /* class_init */
      NULL,   /* class_finalize */
      NULL,   /* class_data */
      0,
      0,      /* n_preallocs */
      NULL    /* instance_init */
    };

    type = g_type_register_static (G_TYPE_INTERFACE, "TpChannelIface", &info,
        0);
  }

  return type;
}