From 0930bb94d2ecd3db646e50a88d82d902b2564928 Mon Sep 17 00:00:00 2001
From: Roman Komarov <kizmarh@ya.ru>
Date: Thu, 10 Oct 2013 21:52:19 +0200
Subject: [PATCH] Fix the getCurrentSlideNumber to return 0 when it fails to
 find a slide, fixes #152

---
 shower.js | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/shower.js b/shower.js
index 8c225e3..aff7843 100755
--- a/shower.js
+++ b/shower.js
@@ -599,7 +599,7 @@ window.shower = window.shower || (function(window, document, undefined) {
 	/**
 	* Get current slide number. Starts from zero. Warning: when you have
 	* slide number 1 in URL this method will return 0.
-	* If something is wrong return -1.
+	* If something is wrong return 0 to get the first slide.
 	* @returns {Number}
 	*/
 	shower.getCurrentSlideNumber = function() {
@@ -614,7 +614,7 @@ window.shower = window.shower || (function(window, document, undefined) {
 			}
 		}
 
-		return -1;
+		return 0;
 	};
 
 	/**
@@ -634,11 +634,6 @@ window.shower = window.shower || (function(window, document, undefined) {
 			throw new Error('You can\'t scroll to because you in slide mode. Please, switch to list mode.');
 		}
 
-		// @TODO: WTF?
-		if (-1 === slideNumber) {
-			return ret;
-		}
-
 		if (shower.slideList[slideNumber]) {
 			currentSlide = document.getElementById(shower.slideList[slideNumber].id);
 			window.scrollTo(0, currentSlide.offsetTop);
@@ -799,7 +794,7 @@ window.shower = window.shower || (function(window, document, undefined) {
 
 	document.addEventListener('keydown', function(e) {
 		var currentSlideNumber = shower.getCurrentSlideNumber(),
-			slide = shower.slideList[ currentSlideNumber !== -1 ? currentSlideNumber : 0 ],
+			slide = shower.slideList[currentSlideNumber],
 			slideNumber;
 
 		switch (e.which) {
@@ -833,7 +828,7 @@ window.shower = window.shower || (function(window, document, undefined) {
 			break;
 
 			case 13: // Enter
-				if (shower.isListMode() && -1 !== currentSlideNumber) {
+				if (shower.isListMode()) {
 					e.preventDefault();
 
 					shower.enterSlideMode();