From 137fa136d287f1bc930c71c89c3482389b580e17 Mon Sep 17 00:00:00 2001
From: Matthew Petroff <matthew@mpetroff.net>
Date: Tue, 8 Jan 2013 21:56:29 -0500
Subject: [PATCH] Added auto-rotation.

---
 configuration.htm   | 11 ++++++++++-
 src/js/pannellum.js | 29 +++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/configuration.htm b/configuration.htm
index f61b664..e132562 100644
--- a/configuration.htm
+++ b/configuration.htm
@@ -30,6 +30,9 @@
 					if(form.autoload.checked) {
 						embed_code.innerHTML += '&amp;amp;autoload=yes';
 					}
+					if(form.autorotate.value != 'none') {
+						embed_code.innerHTML += '&amp;amp;autorotate=' + escape(form.autorotate.value);
+					}
 					if(form.license.value > -1) {
 						embed_code.innerHTML += '&amp;amp;license=' + escape(form.license.value);
 					}
@@ -77,9 +80,15 @@
 			Embed Size:<br>
 			<input name="embed_width" type="number" min="200" placeholder="Width" required> <input name="embed_height" type="number" min="150" placeholder="Height" required><p>
 			Initial Parameters:<br>
-			<input name="fov" type="number" min="40" max="100" placeholder="Field of View"> <input name="lat" type="number" min="-85" max "85" placeholder="Lat"> <input name="lon" type="number" min="-180" max "180" placeholder="Lon"><p>
+			<input name="fov" type="number" min="40" max="100" placeholder="Field of View"> <input name="lat" type="number" min="-85" max="85" placeholder="Lat"> <input name="lon" type="number" min="-180" max="180" placeholder="Lon"><p>
 			Include Pannellum Logo: <input name="use_logo" type="checkbox"><p>
 			Auto Load: <input name="autoload" type="checkbox"><p>
+			Auto Rotate:
+			<select name="autorotate">
+				<option value="none">None</option>
+				<option value="cw">CW</option>
+				<option value="ccw">CCW</option>
+			</select><p>
 			Creative Commons License: 
 			<select name="license">
 				<option value="-1">None</option>
diff --git a/src/js/pannellum.js b/src/js/pannellum.js
index 9645fba..3baf44c 100644
--- a/src/js/pannellum.js
+++ b/src/js/pannellum.js
@@ -126,6 +126,15 @@ if(getURLParameter('autoload') == 'yes' || getURLParameter('popoutautoload') ==
 	document.getElementById('load_button').style.display = 'table';
 }
 
+var autoRotate = false;
+
+if(getURLParameter('autorotate') == 'cw') {
+    autoRotate = 'cw';
+}
+if(getURLParameter('autorotate') == 'ccw') {
+    autoRotate = 'ccw';
+}
+
 function init() {
 	var container, mesh;
 	
@@ -213,6 +222,9 @@ function onDocumentMouseDown(event) {
 	// but not all of it
 	window.focus();
 	
+	// turn off auto-rotation if enabled
+	autoRotate = false;
+	
 	isUserInteracting = true;
 	
 	onPointerDownPointerX = event.clientX;
@@ -287,6 +299,9 @@ function onDocumentKeyPress(event) {
 	// override default action
 	event.preventDefault();
 	
+	// turn off auto-rotation if enabled
+	autoRotate = false;
+	
 	// record key pressed
 	keynumber = event.keycode;
 	if(event.which) {
@@ -450,6 +465,20 @@ function keyRepeat() {
 		lon += 1;
 		animate();
 	}
+	
+	// if clockwise auto-rotate
+	if(autoRotate == 'cw') {
+		// pan left
+		lon -= .25;
+		animate();
+	}
+	
+	// if counter-clockwise auto-rotate
+	if(autoRotate == 'ccw') {
+		// pan right
+		lon += .25;
+		animate();
+	}
 }
 
 function onDocumentResize() {