/*
 * lightdm-webkit2-greeter-ext.c
 * 
 * Copyright (C) 2010 Robert Ancell.
 * Author: Robert Ancell <robert.ancell@canonical.com>
 * Webkit2 port: Copyright (C) 2014 Antergos
 *
 * 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 3 of the License, or (at your option) any later
 * version. See http://www.gnu.org/copyleft/gpl.html the full text of the
 * license.
 */

#include <stdlib.h>
#include <gtk/gtk.h>
#include <webkit2/webkit-web-extension.h>
#include <JavaScriptCore/JavaScript.h>
#include <glib/gi18n.h>

#include <lightdm.h>

#include <../config.h>

G_MODULE_EXPORT void
webkit_web_extension_initialize (WebKitWebExtension *extension);

guint64 page_id = -1;

static JSClassRef gettext_class;
static JSClassRef lightdm_greeter_class, lightdm_user_class, lightdm_language_class, lightdm_layout_class, lightdm_session_class;

static JSValueRef
get_user_name_cb (JSContextRef context,
                  JSObjectRef thisObject,
                  JSStringRef propertyName,
                  JSValueRef *exception)
{
    LightDMUser *user = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_user_get_name (user));
    return JSValueMakeString (context, string);
}

static JSValueRef
get_user_real_name_cb (JSContextRef context,
                       JSObjectRef thisObject,
                       JSStringRef propertyName,
                       JSValueRef *exception)
{
    LightDMUser *user = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_user_get_real_name (user));
    return JSValueMakeString (context, string);
}

static JSValueRef
get_user_display_name_cb (JSContextRef context,
                          JSObjectRef thisObject,
                          JSStringRef propertyName,
                          JSValueRef *exception)
{
    LightDMUser *user = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_user_get_display_name (user));
    return JSValueMakeString (context, string);
}

static JSValueRef
get_user_image_cb (JSContextRef context,
                   JSObjectRef thisObject,
                   JSStringRef propertyName,
                   JSValueRef *exception)
{
    LightDMUser *user = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_user_get_image (user));
    return JSValueMakeString (context, string);
}

static JSValueRef
get_user_language_cb (JSContextRef context,
                      JSObjectRef thisObject,
                      JSStringRef propertyName,
                      JSValueRef *exception)
{
    LightDMUser *user = JSObjectGetPrivate (thisObject);
    const gchar *language = lightdm_user_get_language (user);
    JSStringRef string;

    if (!language)
        return JSValueMakeNull (context);

    string = JSStringCreateWithUTF8CString (language);
    return JSValueMakeString (context, string);
}

static JSValueRef
get_user_layout_cb (JSContextRef context,
                    JSObjectRef thisObject,
                    JSStringRef propertyName,
                    JSValueRef *exception)
{
    LightDMUser *user = JSObjectGetPrivate (thisObject);
    const gchar *layout = lightdm_user_get_layout (user);
    JSStringRef string;

    if (!layout)
        return JSValueMakeNull (context);

    string = JSStringCreateWithUTF8CString (layout);
    return JSValueMakeString (context, string);
}

static JSValueRef
get_user_session_cb (JSContextRef context,
                     JSObjectRef thisObject,
                     JSStringRef propertyName,
                     JSValueRef *exception)
{
    LightDMUser *user = JSObjectGetPrivate (thisObject);
    const gchar *session = lightdm_user_get_session (user);
    JSStringRef string;

    if (!session)
        return JSValueMakeNull (context);

    string = JSStringCreateWithUTF8CString (session);
    return JSValueMakeString (context, string);
}

static JSValueRef
get_user_logged_in_cb (JSContextRef context,
                       JSObjectRef thisObject,
                       JSStringRef propertyName,
                       JSValueRef *exception)
{
    LightDMUser *user = JSObjectGetPrivate (thisObject);
    return JSValueMakeBoolean (context, lightdm_user_get_logged_in (user));
}

static JSValueRef
get_language_code_cb (JSContextRef context,
                      JSObjectRef thisObject,
                      JSStringRef propertyName,
                      JSValueRef *exception)
{
    LightDMLanguage *language = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_language_get_code (language));
    return JSValueMakeString (context, string);
}

static JSValueRef
get_language_name_cb (JSContextRef context,
                      JSObjectRef thisObject,
                      JSStringRef propertyName,
                      JSValueRef *exception)
{
    LightDMLanguage *language = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_language_get_name (language));
    return JSValueMakeString (context, string);
}


static JSValueRef
get_language_territory_cb (JSContextRef context,
                           JSObjectRef thisObject,
                           JSStringRef propertyName,
                           JSValueRef *exception)
{
    LightDMLanguage *language = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_language_get_territory (language));
    return JSValueMakeString (context, string);
}

static JSValueRef
get_layout_name_cb (JSContextRef context,
                    JSObjectRef thisObject,
                    JSStringRef propertyName,
                    JSValueRef *exception)
{
    LightDMLayout *layout = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_layout_get_name (layout));
    return JSValueMakeString (context, string);
}

static JSValueRef
get_layout_short_description_cb (JSContextRef context,
                                 JSObjectRef thisObject,
                                 JSStringRef propertyName,
                                 JSValueRef *exception)
{
    LightDMLayout *layout = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_layout_get_short_description (layout));
    return JSValueMakeString (context, string);
}

static JSValueRef
get_layout_description_cb (JSContextRef context,
                           JSObjectRef thisObject,
                           JSStringRef propertyName,
                           JSValueRef *exception)
{
    LightDMLayout *layout = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_layout_get_description (layout));
    return JSValueMakeString (context, string);
}

static JSValueRef
get_session_key_cb (JSContextRef context,
                    JSObjectRef thisObject,
                    JSStringRef propertyName,
                    JSValueRef *exception)
{
    LightDMSession *session = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_session_get_key (session));
    return JSValueMakeString (context, string);

}
static JSValueRef
get_session_name_cb (JSContextRef context,
                     JSObjectRef thisObject,
                     JSStringRef propertyName,
                     JSValueRef *exception)
{
    LightDMSession *session = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_session_get_name (session));
    return JSValueMakeString (context, string);
}

static JSValueRef
get_session_comment_cb (JSContextRef context,
                        JSObjectRef thisObject,
                        JSStringRef propertyName,
                        JSValueRef *exception)
{
    LightDMSession *session = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_session_get_comment (session));
    return JSValueMakeString (context, string);
}

static JSValueRef
get_hostname_cb (JSContextRef context,
                 JSObjectRef thisObject,
                 JSStringRef propertyName,
                 JSValueRef *exception)
{
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_get_hostname ());

    return JSValueMakeString (context, string);
}

static JSValueRef
get_num_users_cb (JSContextRef context,
                  JSObjectRef thisObject,
                  JSStringRef propertyName,
                  JSValueRef *exception)
{
    gint num_users;

    num_users = g_list_length(lightdm_user_list_get_users (lightdm_user_list_get_instance()));
    return JSValueMakeNumber (context, num_users);
}

static JSValueRef
get_users_cb (JSContextRef context,
              JSObjectRef thisObject,
              JSStringRef propertyName,
              JSValueRef *exception)
{
    JSObjectRef array;
    const GList *users, *link;
    guint i, n_users = 0;
    JSValueRef *args;

    users = lightdm_user_list_get_users( lightdm_user_list_get_instance() );
    n_users = g_list_length ((GList *)users);
    args = g_malloc (sizeof (JSValueRef) * (n_users + 1));
    for (i = 0, link = users; link; i++, link = link->next)
    {
        LightDMUser *user = link->data;
        g_object_ref (user);
        args[i] = JSObjectMake (context, lightdm_user_class, user);
    }

    array = JSObjectMakeArray (context, n_users, args, NULL);
    g_free (args);
    return array;
}

static JSValueRef
get_languages_cb (JSContextRef context,
                  JSObjectRef thisObject,
                  JSStringRef propertyName,
                  JSValueRef *exception)
{
    JSObjectRef array;
    const GList *languages, *link;
    guint i, n_languages = 0;
    JSValueRef *args;

    languages = lightdm_get_languages ();
    n_languages = g_list_length ((GList *)languages);
    args = g_malloc (sizeof (JSValueRef) * (n_languages + 1));
    for (i = 0, link = languages; link; i++, link = link->next)
    {
        LightDMLanguage *language = link->data;
        g_object_ref (language);
        args[i] = JSObjectMake (context, lightdm_language_class, language);
    }

    array = JSObjectMakeArray (context, n_languages, args, NULL);
    g_free (args);
    return array;
}

static JSValueRef
get_default_language_cb (JSContextRef context,
                         JSObjectRef thisObject,
                         JSStringRef propertyName,
                         JSValueRef *exception)
{
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_language_get_name((LightDMLanguage *)lightdm_get_language ()));

    return JSValueMakeString (context, string);
}

static JSValueRef
get_default_layout_cb (JSContextRef context,
                       JSObjectRef thisObject,
                       JSStringRef propertyName,
                       JSValueRef *exception)
{
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_layout_get_name(lightdm_get_layout ()));

    return JSValueMakeString (context, string);
}

static JSValueRef
get_layouts_cb (JSContextRef context,
                JSObjectRef thisObject,
                JSStringRef propertyName,
                JSValueRef *exception)
{
    JSObjectRef array;
    const GList *layouts, *link;
    guint i, n_layouts = 0;
    JSValueRef *args;

    layouts = lightdm_get_layouts ();
    n_layouts = g_list_length ((GList *)layouts);
    args = g_malloc (sizeof (JSValueRef) * (n_layouts + 1));
    for (i = 0, link = layouts; link; i++, link = link->next)
    {
        LightDMLayout *layout = link->data;
        g_object_ref (layout);
        args[i] = JSObjectMake (context, lightdm_layout_class, layout);
    }

    array = JSObjectMakeArray (context, n_layouts, args, NULL);
    g_free (args);
    return array;
}

static JSValueRef
get_layout_cb (JSContextRef context,
               JSObjectRef thisObject,
               JSStringRef propertyName,
               JSValueRef *exception)
{
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_layout_get_name(lightdm_get_layout ()));

    return JSValueMakeString (context, string);
}

static bool
set_layout_cb (JSContextRef context,
               JSObjectRef thisObject,
               JSStringRef propertyName,
               JSValueRef value,
               JSValueRef *exception)
{
    JSStringRef layout_arg;
    char layout[1024];

    // FIXME: Throw exception
    if (JSValueGetType (context, value) != kJSTypeString)
        return false;

    layout_arg = JSValueToStringCopy (context, value, NULL);
    JSStringGetUTF8CString (layout_arg, layout, 1024);
    JSStringRelease (layout_arg);

    //lightdm_set_layout (layout);

    return true;
}

static JSValueRef
get_sessions_cb (JSContextRef context,
                 JSObjectRef thisObject,
                 JSStringRef propertyName,
                 JSValueRef *exception)
{
    JSObjectRef array;
    const GList *sessions, *link;
    guint i, n_sessions = 0;
    JSValueRef *args;

    sessions = lightdm_get_sessions ();
    n_sessions = g_list_length ((GList *)sessions);
    args = g_malloc (sizeof (JSValueRef) * (n_sessions + 1));
    for (i = 0, link = sessions; link; i++, link = link->next)
    {
        LightDMSession *session = link->data;
        g_object_ref (session);
        args[i] = JSObjectMake (context, lightdm_session_class, session);
    }

    array = JSObjectMakeArray (context, n_sessions, args, NULL);
    g_free (args);
    return array;
}

static JSValueRef
get_default_session_cb (JSContextRef context,
                        JSObjectRef thisObject,
                        JSStringRef propertyName,
                        JSValueRef *exception)
{
    LightDMGreeter *greeter = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_greeter_get_default_session_hint (greeter));

    return JSValueMakeString (context, string);
}

static JSValueRef
get_timed_login_user_cb (JSContextRef context,
                         JSObjectRef thisObject,
                         JSStringRef propertyName,
                         JSValueRef *exception)
{
    LightDMGreeter *greeter = JSObjectGetPrivate (thisObject);
    JSStringRef string;

    string = JSStringCreateWithUTF8CString (lightdm_greeter_get_autologin_user_hint (greeter));

    return JSValueMakeString (context, string);
}

static JSValueRef
get_timed_login_delay_cb (JSContextRef context,
                          JSObjectRef thisObject,
                          JSStringRef propertyName,
                          JSValueRef *exception)
{
    LightDMGreeter *greeter = JSObjectGetPrivate (thisObject);
    gint delay;

    delay = lightdm_greeter_get_autologin_timeout_hint (greeter);
    return JSValueMakeNumber (context, delay);
}
static JSValueRef
cancel_timed_login_cb (JSContextRef context,
                       JSObjectRef function,
                       JSObjectRef thisObject,
                       size_t argumentCount,
                       const JSValueRef arguments[],
                       JSValueRef *exception)
{
    LightDMGreeter *greeter = JSObjectGetPrivate (thisObject);

    // FIXME: Throw exception
    if (argumentCount != 0)
        return JSValueMakeNull (context);

    lightdm_greeter_cancel_autologin (greeter);
    return JSValueMakeNull (context);
}

static JSValueRef
start_authentication_cb (JSContextRef context,
                         JSObjectRef function,
                         JSObjectRef thisObject,
                         size_t argumentCount,
                         const JSValueRef arguments[],
                         JSValueRef *exception)
{
    LightDMGreeter *greeter = JSObjectGetPrivate (thisObject);
    JSStringRef name_arg;
    char name[1024];

    // FIXME: Throw exception
    if (!(argumentCount == 1 && JSValueGetType (context, arguments[0]) == kJSTypeString))
        return JSValueMakeNull (context);

    name_arg = JSValueToStringCopy (context, arguments[0], NULL);
    JSStringGetUTF8CString (name_arg, name, 1024);
    JSStringRelease (name_arg);

    lightdm_greeter_authenticate (greeter, name);
    return JSValueMakeNull (context);
}

static JSValueRef
provide_secret_cb (JSContextRef context,
                   JSObjectRef function,
                   JSObjectRef thisObject,
                   size_t argumentCount,
                   const JSValueRef arguments[],
                   JSValueRef *exception)
{
    LightDMGreeter *greeter = JSObjectGetPrivate (thisObject);
    JSStringRef secret_arg;
    char secret[1024];

    // FIXME: Throw exception
    if (!(argumentCount == 1 && JSValueGetType (context, arguments[0]) == kJSTypeString))
        return JSValueMakeNull (context);

    secret_arg = JSValueToStringCopy (context, arguments[0], NULL);
    JSStringGetUTF8CString (secret_arg, secret, 1024);
    JSStringRelease (secret_arg);

    lightdm_greeter_respond (greeter, secret);

    return JSValueMakeNull (context);
}

static JSValueRef
cancel_authentication_cb (JSContextRef context,
                          JSObjectRef function,
                          JSObjectRef thisObject,
                          size_t argumentCount,
                          const JSValueRef arguments[],
                          JSValueRef *exception)
{
    LightDMGreeter *greeter = JSObjectGetPrivate (thisObject);

    // FIXME: Throw exception
    if (argumentCount != 0)
        return JSValueMakeNull (context);

    lightdm_greeter_cancel_authentication (greeter);
    return JSValueMakeNull (context);
}

static JSValueRef
get_authentication_user_cb (JSContextRef context,
                            JSObjectRef thisObject,
                            JSStringRef propertyName,
                            JSValueRef *exception)
{
    LightDMGreeter *greeter = JSObjectGetPrivate (thisObject);
    return JSValueMakeString (context, JSStringCreateWithUTF8CString (lightdm_greeter_get_authentication_user (greeter)));
}

static JSValueRef
get_is_authenticated_cb (JSContextRef context,
                         JSObjectRef thisObject,
                         JSStringRef propertyName,
                         JSValueRef *exception)
{
    LightDMGreeter *greeter = JSObjectGetPrivate (thisObject);
    return JSValueMakeBoolean (context, lightdm_greeter_get_is_authenticated (greeter));
}

static JSValueRef
get_can_suspend_cb (JSContextRef context,
                    JSObjectRef thisObject,
                    JSStringRef propertyName,
                    JSValueRef *exception)
{
    return JSValueMakeBoolean (context, lightdm_get_can_suspend ());
}

static JSValueRef
suspend_cb (JSContextRef context,
            JSObjectRef function,
            JSObjectRef thisObject,
            size_t argumentCount,
            const JSValueRef arguments[],
            JSValueRef *exception)
{
    // FIXME: Throw exception
    if (argumentCount != 0)
        return JSValueMakeNull (context);

    lightdm_suspend(NULL);
    return JSValueMakeNull (context);
}

static JSValueRef
get_can_hibernate_cb (JSContextRef context,
                      JSObjectRef thisObject,
                      JSStringRef propertyName,
                      JSValueRef *exception)
{
    return JSValueMakeBoolean (context, lightdm_get_can_hibernate ());
}

static JSValueRef
hibernate_cb (JSContextRef context,
              JSObjectRef function,
              JSObjectRef thisObject,
              size_t argumentCount,
              const JSValueRef arguments[],
              JSValueRef *exception)
{
    // FIXME: Throw exception
    if (argumentCount != 0)
        return JSValueMakeNull (context);

    lightdm_hibernate (NULL);
    return JSValueMakeNull (context);
}

static JSValueRef
get_can_restart_cb (JSContextRef context,
                    JSObjectRef thisObject,
                    JSStringRef propertyName,
                    JSValueRef *exception)
{
    return JSValueMakeBoolean (context, lightdm_get_can_restart ());
}

static JSValueRef
restart_cb (JSContextRef context,
            JSObjectRef function,
            JSObjectRef thisObject,
            size_t argumentCount,
            const JSValueRef arguments[],
            JSValueRef *exception)
{
    // FIXME: Throw exception
    if (argumentCount != 0)
        return JSValueMakeNull (context);

    lightdm_restart (NULL);
    return JSValueMakeNull (context);
}

static JSValueRef
get_can_shutdown_cb (JSContextRef context,
                     JSObjectRef thisObject,
                     JSStringRef propertyName,
                     JSValueRef *exception)
{
    return JSValueMakeBoolean (context, lightdm_get_can_shutdown ());
}

static JSValueRef
shutdown_cb (JSContextRef context,
             JSObjectRef function,
             JSObjectRef thisObject,
             size_t argumentCount,
             const JSValueRef arguments[],
             JSValueRef *exception)
{
    // FIXME: Throw exception
    if (argumentCount != 0)
        return JSValueMakeNull (context);

    lightdm_shutdown (NULL);
    return JSValueMakeNull (context);
}

static JSValueRef
login_cb (JSContextRef context,
          JSObjectRef function,
          JSObjectRef thisObject,
          size_t argumentCount,
          const JSValueRef arguments[],
          JSValueRef *exception)
{
    LightDMGreeter *greeter = JSObjectGetPrivate (thisObject);
    JSStringRef arg;
    char username[1024], *session = NULL, *language = NULL;

    // FIXME: Throw exception

    arg = JSValueToStringCopy (context, arguments[0], NULL);
    JSStringGetUTF8CString (arg, username, 1024);
    JSStringRelease (arg);

    if (argumentCount > 1)
    {
        arg = JSValueToStringCopy (context, arguments[1], NULL);
        session = g_malloc (sizeof (char) * 1024);
        JSStringGetUTF8CString (arg, session, 1024);
        JSStringRelease (arg);
    }

    if (argumentCount > 2)
    {
        arg = JSValueToStringCopy (context, arguments[1], NULL);
        language = g_malloc (sizeof (char) * 1024);
        JSStringGetUTF8CString (arg, language, 1024);
        JSStringRelease (arg);
    }

    lightdm_greeter_start_session_sync (greeter, session, NULL);

    g_free (session);
    g_free (language);

    return JSValueMakeNull (context);
}

static JSValueRef
gettext_cb (JSContextRef context,
            JSObjectRef function,
            JSObjectRef thisObject,
            size_t argumentCount,
            const JSValueRef arguments[],
            JSValueRef *exception)
{
    JSStringRef string_arg, result;
    char string[1024];

    // FIXME: Throw exception
    if (argumentCount != 1)
        return JSValueMakeNull (context);

    string_arg = JSValueToStringCopy (context, arguments[0], NULL);
    JSStringGetUTF8CString (string_arg, string, 1024);
    JSStringRelease (string_arg);

    result = JSStringCreateWithUTF8CString (gettext (string));
    return JSValueMakeString (context, result);
}

static JSValueRef
ngettext_cb (JSContextRef context,
             JSObjectRef function,
             JSObjectRef thisObject,
             size_t argumentCount,
             const JSValueRef arguments[],
             JSValueRef *exception)
{
    JSStringRef string_arg, plural_string_arg, result;
    char string[1024], plural_string[1024];
    unsigned int n;

    // FIXME: Throw exception
    if (argumentCount != 3)
        return JSValueMakeNull (context);

    string_arg = JSValueToStringCopy (context, arguments[0], NULL);
    JSStringGetUTF8CString (string_arg, string, 1024);
    JSStringRelease (string_arg);

    plural_string_arg = JSValueToStringCopy (context, arguments[1], NULL);
    JSStringGetUTF8CString (plural_string_arg, string, 1024);
    JSStringRelease (plural_string_arg);

    n = JSValueToNumber (context, arguments[2], NULL);

    result = JSStringCreateWithUTF8CString (ngettext (string, plural_string, n));
    return JSValueMakeString (context, result);
}

static const JSStaticValue lightdm_user_values[] =
{
    { "name", get_user_name_cb, NULL, kJSPropertyAttributeReadOnly },
    { "real_name", get_user_real_name_cb, NULL, kJSPropertyAttributeReadOnly },
    { "display_name", get_user_display_name_cb, NULL, kJSPropertyAttributeReadOnly },
    { "image", get_user_image_cb, NULL, kJSPropertyAttributeReadOnly },
    { "language", get_user_language_cb, NULL, kJSPropertyAttributeReadOnly },
    { "layout", get_user_layout_cb, NULL, kJSPropertyAttributeReadOnly },
    { "session", get_user_session_cb, NULL, kJSPropertyAttributeReadOnly },
    { "logged_in", get_user_logged_in_cb, NULL, kJSPropertyAttributeReadOnly },
    { NULL, NULL, NULL, 0 }
};

static const JSStaticValue lightdm_language_values[] =
{
    { "code", get_language_code_cb, NULL, kJSPropertyAttributeReadOnly },
    { "name", get_language_name_cb, NULL, kJSPropertyAttributeReadOnly },
    { "territory", get_language_territory_cb, NULL, kJSPropertyAttributeReadOnly },
    { NULL, NULL, NULL, 0 }
};

static const JSStaticValue lightdm_layout_values[] =
{
    { "name", get_layout_name_cb, NULL, kJSPropertyAttributeReadOnly },
    { "short_description", get_layout_short_description_cb, NULL, kJSPropertyAttributeReadOnly },
    { "description", get_layout_description_cb, NULL, kJSPropertyAttributeReadOnly },
    { NULL, NULL, NULL, 0 }
};

static const JSStaticValue lightdm_session_values[] =
{
    { "key", get_session_key_cb, NULL, kJSPropertyAttributeReadOnly },
    { "name", get_session_name_cb, NULL, kJSPropertyAttributeReadOnly },
    { "comment", get_session_comment_cb, NULL, kJSPropertyAttributeReadOnly },
    { NULL, NULL, NULL, 0 }
};

static const JSStaticValue lightdm_greeter_values[] =
{
    { "hostname", get_hostname_cb, NULL, kJSPropertyAttributeReadOnly },
    { "users", get_users_cb, NULL, kJSPropertyAttributeReadOnly },
    { "default_language", get_default_language_cb, NULL, kJSPropertyAttributeReadOnly },
    { "languages", get_languages_cb, NULL, kJSPropertyAttributeReadOnly },
    { "default_layout", get_default_layout_cb, NULL, kJSPropertyAttributeReadOnly },
    { "layouts", get_layouts_cb, NULL, kJSPropertyAttributeReadOnly },
    { "layout", get_layout_cb, set_layout_cb, kJSPropertyAttributeReadOnly },
    { "sessions", get_sessions_cb, NULL, kJSPropertyAttributeReadOnly },
    { "num_users", get_num_users_cb, NULL, kJSPropertyAttributeReadOnly },
    { "default_session", get_default_session_cb, NULL, kJSPropertyAttributeNone },
    { "timed_login_user", get_timed_login_user_cb, NULL, kJSPropertyAttributeReadOnly },
    { "timed_login_delay", get_timed_login_delay_cb, NULL, kJSPropertyAttributeReadOnly },
    { "authentication_user", get_authentication_user_cb, NULL, kJSPropertyAttributeReadOnly },
    { "is_authenticated", get_is_authenticated_cb, NULL, kJSPropertyAttributeReadOnly },
    { "can_suspend", get_can_suspend_cb, NULL, kJSPropertyAttributeReadOnly },
    { "can_hibernate", get_can_hibernate_cb, NULL, kJSPropertyAttributeReadOnly },
    { "can_restart", get_can_restart_cb, NULL, kJSPropertyAttributeReadOnly },
    { "can_shutdown", get_can_shutdown_cb, NULL, kJSPropertyAttributeReadOnly },
    { NULL, NULL, NULL, 0 }
};

static const JSStaticFunction lightdm_greeter_functions[] =
{
    { "cancel_timed_login", cancel_timed_login_cb, kJSPropertyAttributeReadOnly },
    { "start_authentication", start_authentication_cb, kJSPropertyAttributeReadOnly },
    { "provide_secret", provide_secret_cb, kJSPropertyAttributeReadOnly },
    { "cancel_authentication", cancel_authentication_cb, kJSPropertyAttributeReadOnly },
    { "suspend", suspend_cb, kJSPropertyAttributeReadOnly },
    { "hibernate", hibernate_cb, kJSPropertyAttributeReadOnly },
    { "restart", restart_cb, kJSPropertyAttributeReadOnly },
    { "shutdown", shutdown_cb, kJSPropertyAttributeReadOnly },
    { "login", login_cb, kJSPropertyAttributeReadOnly },
    { NULL, NULL, 0 }
};

static const JSStaticFunction gettext_functions[] =
{
    { "gettext", gettext_cb, kJSPropertyAttributeReadOnly },
    { "ngettext", ngettext_cb, kJSPropertyAttributeReadOnly },
    { NULL, NULL, 0 }
};

static const JSClassDefinition lightdm_user_definition =
{
    0,                     /* Version */
    kJSClassAttributeNone, /* Attributes */
    "LightDMUser",             /* Class name */
    NULL,                  /* Parent class */
    lightdm_user_values,       /* Static values */
};

static const JSClassDefinition lightdm_language_definition =
{
    0,                     /* Version */
    kJSClassAttributeNone, /* Attributes */
    "LightDMLanguage",         /* Class name */
    NULL,                  /* Parent class */
    lightdm_language_values,   /* Static values */
};

static const JSClassDefinition lightdm_layout_definition =
{
    0,                     /* Version */
    kJSClassAttributeNone, /* Attributes */
    "LightDMLayout",           /* Class name */
    NULL,                  /* Parent class */
    lightdm_layout_values,     /* Static values */
};

static const JSClassDefinition lightdm_session_definition =
{
    0,                     /* Version */
    kJSClassAttributeNone, /* Attributes */
    "LightDMSession",          /* Class name */
    NULL,                  /* Parent class */
    lightdm_session_values,    /* Static values */
};

static const JSClassDefinition lightdm_greeter_definition =
{
    0,                     /* Version */
    kJSClassAttributeNone, /* Attributes */
    "LightDMGreeter",          /* Class name */
    NULL,                  /* Parent class */
    lightdm_greeter_values,    /* Static values */
    lightdm_greeter_functions, /* Static functions */
};

static const JSClassDefinition gettext_definition =
{
    0,                     /* Version */
    kJSClassAttributeNone, /* Attributes */
    "GettextClass",        /* Class name */
    NULL,                  /* Parent class */
    NULL,
    gettext_functions,     /* Static functions */
};

static void
web_page_created_callback (WebKitWebExtension *extension,
                           WebKitWebPage      *web_page,
                           gpointer            user_data)
{
    /* guint64 page_id = webkit_web_page_get_id (web_page); */

    g_print ("Page %" G_GUINT64_FORMAT "created for %s\n", 
             webkit_web_page_get_id (web_page),
             webkit_web_page_get_uri (web_page));
}

static void
window_object_cleared_callback (WebKitScriptWorld *world, 
                                WebKitWebPage     *web_page, 
                                WebKitFrame       *frame, 
                                LightDMGreeter *greeter)
{
    JSObjectRef gettext_object, lightdm_greeter_object;
    JSGlobalContextRef jsContext;
    JSObjectRef        globalObject;

    page_id = webkit_web_page_get_id (web_page);

    jsContext = webkit_frame_get_javascript_context_for_script_world (frame, world);
    globalObject = JSContextGetGlobalObject (jsContext);
    
    gettext_class = JSClassCreate (&gettext_definition);
    lightdm_greeter_class = JSClassCreate (&lightdm_greeter_definition);
    lightdm_user_class = JSClassCreate (&lightdm_user_definition);
    lightdm_language_class = JSClassCreate (&lightdm_language_definition);
    lightdm_layout_class = JSClassCreate (&lightdm_layout_definition);
    lightdm_session_class = JSClassCreate (&lightdm_session_definition);

    gettext_object = JSObjectMake (jsContext, gettext_class, NULL);
    
    JSObjectSetProperty (jsContext,
                         globalObject,
                         JSStringCreateWithUTF8CString ("gettext"),
                         gettext_object, kJSPropertyAttributeNone, NULL);

    lightdm_greeter_object = JSObjectMake (jsContext, lightdm_greeter_class, greeter);
    
    JSObjectSetProperty (jsContext,
                         globalObject,
                         JSStringCreateWithUTF8CString ("lightdm"),
                         lightdm_greeter_object, kJSPropertyAttributeNone, NULL);
}

static void
show_prompt_cb (LightDMGreeter *greeter, const gchar *text, LightDMPromptType type, WebKitWebExtension *extension)
{
    WebKitWebPage *web_page;
    WebKitFrame *web_frame;
    JSGlobalContextRef jsContext;
    JSStringRef command;
    gchar *string;
    
    g_debug("Show prompt %s", text);

    web_page =	webkit_web_extension_get_page (extension, page_id);
    
    if (web_page != NULL) {
        web_frame = webkit_web_page_get_main_frame(web_page);
        
        jsContext = webkit_frame_get_javascript_global_context(web_frame);

        string = g_strdup_printf ("show_prompt('%s')", text);
        command = JSStringCreateWithUTF8CString (string);
        
        JSEvaluateScript(jsContext, command, NULL, NULL, 0, NULL);
        
        g_free(string);
    }
}

static void
show_message_cb (LightDMGreeter *greeter, const gchar *text, LightDMMessageType type, WebKitWebExtension *extension)
{
    WebKitWebPage *web_page;
    WebKitFrame *web_frame;
    JSGlobalContextRef jsContext;
    JSStringRef command;
    gchar *string;
    
    web_page =	webkit_web_extension_get_page (extension, page_id);
    if (web_page != NULL) {
        web_frame = webkit_web_page_get_main_frame(web_page);

        jsContext = webkit_frame_get_javascript_global_context(web_frame);

        string = g_strdup_printf ("show_message('%s')", text);     
        command = JSStringCreateWithUTF8CString (string);

        JSEvaluateScript(jsContext, command, NULL, NULL, 0, NULL);
        
        g_free(string);
    }
}

static void
authentication_complete_cb (LightDMGreeter *greeter, WebKitWebExtension *extension)
{
    WebKitWebPage *web_page;
    WebKitFrame *web_frame;
    JSGlobalContextRef jsContext;
    JSStringRef command;

    web_page =	webkit_web_extension_get_page (extension, page_id);
    
    if (web_page != NULL) {
        web_frame = webkit_web_page_get_main_frame(web_page);

        jsContext = webkit_frame_get_javascript_global_context(web_frame);

        command = JSStringCreateWithUTF8CString ("authentication_complete()");

        JSEvaluateScript(jsContext, command, NULL, NULL, 0, NULL);
    }
}

G_MODULE_EXPORT void
webkit_web_extension_initialize (WebKitWebExtension *extension)
{
    LightDMGreeter *greeter;

    greeter = lightdm_greeter_new ();
    
    g_signal_connect (G_OBJECT (greeter), "authentication-complete", G_CALLBACK (authentication_complete_cb), extension);
    g_signal_connect (G_OBJECT (greeter), "show-prompt", G_CALLBACK (show_prompt_cb), extension);
    g_signal_connect (G_OBJECT (greeter), "show-message", G_CALLBACK (show_message_cb), extension);

    g_signal_connect (extension, "page-created", G_CALLBACK (web_page_created_callback), NULL);

    g_signal_connect (webkit_script_world_get_default (), 
                      "window-object-cleared", 
                      G_CALLBACK (window_object_cleared_callback), 
                      greeter);

    lightdm_greeter_connect_sync (greeter, NULL);
}