/* $Id$ */
/* Copyright (c) 2011-2022 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Locker */
/* Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY ITS AUTHORS AND CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */



#include <System.h>
#ifdef DEBUG
# include <stdio.h>
#endif
#include <gtk/gtk.h>
#include <Desktop.h>
#include "Locker.h"
#include "../../config.h"


/* Systray */
/* private */
/* types */
typedef struct _LockerPlugin
{
	LockerPluginHelper * helper;
	GtkStatusIcon * icon;
	GtkWidget * ab_window;
} Systray;


/* prototypes */
/* plug-in */
static Systray * _systray_init(LockerPluginHelper * helper);
static void _systray_destroy(Systray * systray);

/* callbacks */
#if GTK_CHECK_VERSION(2, 10, 0)
# ifndef EMBEDDED
static void _systray_on_activate(gpointer data);
# endif
static void _systray_on_popup_menu(GtkStatusIcon * icon, guint button,
		guint time, gpointer data);
#endif


/* public */
/* variables */
LockerPluginDefinition plugin =
{
	"System tray",
	"gnome-monitor",
	NULL,
	_systray_init,
	_systray_destroy,
	NULL
};


/* private */
/* functions */
/* systray_init */
static Systray * _systray_init(LockerPluginHelper * helper)
{
	Systray * systray;

#ifdef DEBUG
	fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
#if GTK_CHECK_VERSION(2, 10, 0)
	if((systray = object_new(sizeof(*systray))) == NULL)
		return NULL;
	systray->helper = helper;
	systray->icon = gtk_status_icon_new_from_icon_name(
			"preferences-desktop-screensaver");
# if GTK_CHECK_VERSION(2, 16, 0)
	gtk_status_icon_set_tooltip_text(systray->icon, "Screensaver");
# endif
# ifndef EMBEDDED
	g_signal_connect_swapped(systray->icon, "activate", G_CALLBACK(
				_systray_on_activate), systray);
# endif
	g_signal_connect(systray->icon, "popup-menu", G_CALLBACK(
				_systray_on_popup_menu), systray);
	systray->ab_window = NULL;
	return systray;
#else
	return 1;
#endif
}


/* systray_destroy */
static void _systray_destroy(Systray * systray)
{
	g_object_unref(systray->icon);
	object_delete(systray);
}


#if GTK_CHECK_VERSION(2, 10, 0)
/* callbacks */
# ifndef EMBEDDED
/* systray_on_activate */
static void _systray_on_activate(gpointer data)
{
	Systray * systray = data;
	LockerPluginHelper * helper = systray->helper;

	helper->about_dialog(helper->locker);
}
# endif


/* systray_on_popup_menu */
static void _popup_menu_on_help(gpointer data);
static void _popup_menu_on_lock(gpointer data);
static void _popup_menu_on_quit(gpointer data);
static void _popup_menu_on_about(gpointer data);
static void _popup_menu_on_show_settings(gpointer data);

static void _systray_on_popup_menu(GtkStatusIcon * icon, guint button,
		guint time, gpointer data)
{
	Systray * systray = data;
	GtkWidget * menu;
	GtkWidget * menuitem;
	GtkWidget * image;
	struct
	{
		char const * icon;
		char const * name;
		void (*callback)(gpointer data);
	} items[] = {
		{ "gnome-lockscreen", "_Lock screen",
			_popup_menu_on_lock },
		{ NULL, NULL, NULL },
		{ "gtk-preferences", "_Preferences",
			_popup_menu_on_show_settings },
		{ NULL, NULL, NULL },
		{ "help-contents", "_Help contents",
			_popup_menu_on_help },
#if GTK_CHECK_VERSION(2, 6, 0)
		{ GTK_STOCK_ABOUT, "_About", _popup_menu_on_about },
#else
		{ NULL, "_About", _popup_menu_on_about },
#endif
		{ NULL, NULL, NULL },
		{ "gtk-quit", "_Quit", _popup_menu_on_quit },
	};
	size_t i;
	(void) icon;

	menu = gtk_menu_new();
	for(i = 0; i < sizeof(items) / sizeof(*items); i++)
	{
		if(items[i].name == NULL)
		{
			menuitem = gtk_separator_menu_item_new();
			gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem);
			continue;
		}
		menuitem = gtk_image_menu_item_new_with_mnemonic(items[i].name);
		image = gtk_image_new_from_icon_name(items[i].icon,
				GTK_ICON_SIZE_MENU);
		gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(menuitem),
				image);
		g_signal_connect_swapped(menuitem, "activate", G_CALLBACK(
					items[i].callback), systray);
		gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem);
	}
	gtk_widget_show_all(menu);
	gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, button, time);
}

static void _popup_menu_on_about(gpointer data)
{
	Systray * systray = data;
	LockerPluginHelper * helper = systray->helper;

	helper->about_dialog(helper->locker);
}

static void _popup_menu_on_help(gpointer data)
{
	(void) data;

	desktop_help_contents(PACKAGE, "locker");
}

static void _popup_menu_on_lock(gpointer data)
{
	Systray * systray = data;

	systray->helper->action(systray->helper->locker, LOCKER_ACTION_LOCK);
}

static void _popup_menu_on_quit(gpointer data)
{
	(void) data;

	gtk_main_quit();
}

static void _popup_menu_on_show_settings(gpointer data)
{
	Systray * systray = data;

	systray->helper->action(systray->helper->locker,
			LOCKER_ACTION_SHOW_PREFERENCES);
}
#endif