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/*
 * progress.c
 *
 * Copyright (C) 2002 Sun Microsystems, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Authors: Glynn Foster <glynn.foster@sun.com>
 */

#include <stdio.h>
#include <glade/glade.h>
#include "zenity.h"
#include "util.h"

static guint timer;
static GladeXML *glade_dialog;

static gboolean zenity_progress_pulsate_bar (GIOChannel *giochannel, GIOCondition condition, gpointer data);
static gboolean zenity_progress_increment_bar (GIOChannel *giochannel, GIOCondition condition, gpointer data);

void zenity_progress_dialog_response (GtkWindow *window, int button, gpointer data);

gint 
zenity_progress_timeout (gpointer data)
{
	gtk_progress_bar_pulse (GTK_PROGRESS_BAR (data));
	return TRUE;
}

int zenity_progress (ZenityData *data, ZenityProgressData *progress_data)
{
	GtkWidget *dialog;
	GtkWidget *text;
	GtkWidget *progress_bar;
	GIOChannel *giochannel;
	guint input;

	glade_dialog = zenity_util_load_glade_file ("zenity_progress_dialog");

	if (glade_dialog == NULL)
		return FALSE;
	
	glade_xml_signal_autoconnect (glade_dialog);

	dialog = glade_xml_get_widget (glade_dialog, "zenity_progress_dialog");
	
	if (data->dialog_title)
		gtk_window_set_title (GTK_WINDOW (dialog), data->dialog_title);

	if (data->window_icon)
		zenity_util_set_window_icon (dialog, data->window_icon);
	else {
		zenity_util_set_window_icon (dialog, ZENITY_IMAGE_FULLPATH ("zenity-progress.png"));
	}

	text = glade_xml_get_widget (glade_dialog, "zenity_progress_text");
	gtk_label_set_text (GTK_LABEL (text), progress_data->dialog_text);

	progress_bar = glade_xml_get_widget (glade_dialog, "zenity_progress_bar");

	giochannel = g_io_channel_unix_new (0);

	if (progress_data->pulsate != TRUE) {
		gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (progress_bar), progress_data->percentage/100.0);
	}
	else {
		input = g_io_add_watch (giochannel, G_IO_IN | G_IO_HUP, zenity_progress_pulsate_bar, NULL);
		timer = gtk_timeout_add (100, zenity_progress_timeout, progress_bar);
	}
	
	g_io_channel_unref (giochannel);
	gtk_widget_show (dialog);
	gtk_main ();

	if (glade_dialog)
		g_object_unref (glade_dialog);

	return TRUE;
}

static gboolean 
zenity_progress_pulsate_bar (GIOChannel *giochannel, GIOCondition condition, gpointer data)
{
        gchar buf[1024];

	if (!feof (stdin)) {
		GtkWidget *button;
		gtk_timeout_remove (timer);
		g_io_channel_shutdown (giochannel, 0, NULL);
		button = glade_xml_get_widget (glade_dialog, "zenity_progress_ok_button");
		gtk_widget_set_sensitive (button, TRUE);
		gtk_widget_grab_focus (button);
		button = glade_xml_get_widget (glade_dialog, "zenity_progress_cancel_button");
		gtk_widget_set_sensitive (button, FALSE);
		return FALSE;
	}
	
	fgets (buf, sizeof (buf)-1, stdin);
	return TRUE;
}

static gboolean 
zenity_progress_increment_bar (GIOChannel *giochannel, GIOCondition condition, gpointer data)
{
	/* FIXME: Do nothing at the moment */
}

void
zenity_progress_dialog_response (GtkWindow *window, int button, gpointer data)
{
	GError *error = NULL;

	switch (button) {
		case GTK_RESPONSE_OK:
			gtk_main_quit ();
			break;

		case GTK_RESPONSE_CANCEL:
			gtk_main_quit ();
			break;

		default:
			break;
	}
}