From df11f7746f733c916136c059623f58b12acfb038 Mon Sep 17 00:00:00 2001
From: Owen Leonard <oleonard@myacpl.org>
Date: Thu, 23 Dec 2010 12:21:07 -0500
Subject: [PATCH] Partial fix for Bug 4238, OPAC timeout feature for patron privacy

This patch re-implements the changes made by PTFS and included
in Harley. The code seems to work well, but in order for this to
be a complete fix it would have to include an update to the
database and preferences.
---
 C4/Auth.pm                                         |    1 +
 .../opac-tmpl/prog/en/includes/doc-head-close.inc  |   14 +++++
 koha-tmpl/opac-tmpl/prog/en/js/screensaver.js      |   60 ++++++++++++++++++++
 3 files changed, 75 insertions(+), 0 deletions(-)
 create mode 100644 koha-tmpl/opac-tmpl/prog/en/js/screensaver.js

diff --git a/C4/Auth.pm b/C4/Auth.pm
index 2f13b86..041501f 100644
--- a/C4/Auth.pm
+++ b/C4/Auth.pm
@@ -439,6 +439,7 @@ sub get_template_and_user {
             suggestion                => "" . C4::Context->preference("suggestion"),
             virtualshelves            => "" . C4::Context->preference("virtualshelves"),
             OPACSerialIssueDisplayCount => C4::Context->preference("OPACSerialIssueDisplayCount"),
+            ResetOpacInactivityTimeout => C4::Context->preference("ResetOpacInactivityTimeout"),
             OpacAddMastheadLibraryPulldown => C4::Context->preference("OpacAddMastheadLibraryPulldown"),
             OPACXSLTDetailsDisplay           => C4::Context->preference("OPACXSLTDetailsDisplay"),
             OPACXSLTResultsDisplay           => C4::Context->preference("OPACXSLTResultsDisplay"),
diff --git a/koha-tmpl/opac-tmpl/prog/en/includes/doc-head-close.inc b/koha-tmpl/opac-tmpl/prog/en/includes/doc-head-close.inc
index fe7e7db..d92e523 100644
--- a/koha-tmpl/opac-tmpl/prog/en/includes/doc-head-close.inc
+++ b/koha-tmpl/opac-tmpl/prog/en/includes/doc-head-close.inc
@@ -84,3 +84,17 @@
         <script type="text/javascript" language="javascript" src="<!-- TMPL_VAR NAME="themelang" -->/js/googleindictransliteration.js"></script>
 <!-- /TMPL_IF -->
 
+<!-- TMPL_IF NAME="ResetOpacInactivityTimeout" -->
+<script type="text/javascript" language="javascript" src="<!-- TMPL_VAR NAME="themelang" -->/js/screensaver.js"></script>
+<script type="text/javascript">
+window.onload=function (){
+	var ss = new ScreenSaver( <!-- TMPL_VAR NAME="ResetOpacInactivityTimeout" --> * 1000);
+
+	ss.onstart = function () {
+		document.location = '/cgi-bin/koha/opac-main.pl?logout.x=1';
+                updateBasket(0,null);
+                delCookie("bib_list");
+	};
+}
+</script>
+<!-- /TMPL_IF -->
diff --git a/koha-tmpl/opac-tmpl/prog/en/js/screensaver.js b/koha-tmpl/opac-tmpl/prog/en/js/screensaver.js
new file mode 100644
index 0000000..4257b81
--- /dev/null
+++ b/koha-tmpl/opac-tmpl/prog/en/js/screensaver.js
@@ -0,0 +1,60 @@
+/*
+Copyright (c) 2007, Andreas Blixt, http://blixt.org/. All rights reserved.
+Code licensed under the MIT License:
+http://www.opensource.org/licenses/mit-license.php
+*/
+
+// waitTime is in milliseconds.
+var ScreenSaver = function (waitTime) {
+	this.lastActivity = new Date().getTime();
+	this.waitTime = waitTime;
+
+	var $this = this;
+	this._timer = setInterval(function () { $this._checkTime.call($this) }, 1000);
+	document.onmousemove = function () { $this._mouseHandler.call($this) };
+};
+
+ScreenSaver.prototype = {
+	_timer: null,
+
+	lastActivity: 0,
+	started: false,
+	waitTime: 0,
+
+	onstart: function () {},
+	onend: function () {},
+
+	dispose: function () {
+		if (this._timer) clearInterval(this._timer);
+		document.onmousemove = null;
+	},
+
+	_checkTime: function () {
+		if (!this.started && new Date().getTime() - this.lastActivity >= this.waitTime) {
+			this.started = true;
+			this.onstart();
+		}
+	},
+
+	_mouseHandler: function () {
+		this.lastActivity = new Date().getTime();
+		if (this.started) {
+			this.started = false;
+			this.onend();
+		}
+	}
+};
+
+/*********** Begin Example ***********
+
+var ss = new ScreenSaver(5000);
+
+ss.onstart = function () {
+	document.getElementsByTagName("body")[0].style.backgroundColor = "#000";
+};
+
+ss.onend = function () {
+	document.getElementsByTagName("body")[0].style.backgroundColor = "#fff";
+};
+
+************* End Example *************/
\ No newline at end of file
-- 
1.7.1