Fix elevator

blog/index.html

@@ -31,18 +31,16 @@ layout: default
     </div>
 </div>
 <div id="elevator-button{{ forloop.index0 }}" class="elevator-button"><i class="fa fa-arrow-up"></i></div>
-
+{% endfor %}
 
 <script>
-    // unfortunately elevator does not support a list of elements yet, hotfix for now, should be removed asap
     // Elevator script: https://github.com/tholman/elevator.js
     new Elevator({
-        element: document.querySelector('#elevator-button{{ forloop.index0 }}'),
+        elements: document.querySelectorAll('.elevator-button'),
         mainAudio: '/media/elevator-music.mp3', // Music from http://www.bensound.com/
         endAudio: '/media/ding.mp3', // Music from http://www.bensound.com/
     });
 </script>
-{% endfor %}
 
 <div class="page-navigation" style="text-align:center">
     {% if paginator.previous_page %}

blog/repaircafe.html

@@ -108,14 +108,13 @@ show_mobile_large_logo: true
     </div>
 </div>
 <div id="elevator-button{{ forloop.index0 }}" class="elevator-button"><i class="fa fa-arrow-up"></i></div>
+{% endfor %}
 
 <script>
-    // unfortunately elevator does not support a list of elements yet, hotfix for now, should be removed asap
     // Elevator script: https://github.com/tholman/elevator.js
     new Elevator({
-        element: document.querySelector('#elevator-button{{ forloop.index0 }}'),
+        elements: document.querySelectorAll('.elevator-button'),
         mainAudio: '/media/elevator-music.mp3', // Music from http://www.bensound.com/
         endAudio: '/media/ding.mp3', // Music from http://www.bensound.com/
     });
 </script>
-{% endfor %}

js/elevator.js

@@ -27,6 +27,10 @@ var Elevator = function(options) {
 
     var mainAudio;
     var endAudio;
+    var mainAudioPath;
+    var endAudioPath;
+    var preloadAudio;
+    var loopAudio;
 
     var that = this;
     
@@ -112,6 +116,8 @@ var Elevator = function(options) {
 
         requestAnimationFrame( animateLoop );
 
+        loadAudio();
+
         // Start music!
         if( mainAudio ) {
             mainAudio.play();
@@ -173,6 +179,19 @@ var Elevator = function(options) {
         }
     }
 
+    function loadAudio() {
+        if( !mainAudio && mainAudioPath ) {
+            mainAudio = new Audio( mainAudioPath );
+            mainAudio.setAttribute( 'preload', preloadAudio );
+            mainAudio.setAttribute( 'loop', loopAudio );
+        }
+
+        if( !endAudio && endAudioPath ) {
+            endAudio = new Audio( endAudioPath );
+            endAudio.setAttribute( 'preload', 'auto' );
+        }
+    }
+
     function init( _options ) {
         // Bind to element click event, if need be.
         body = document.body;
@@ -181,13 +200,17 @@ var Elevator = function(options) {
             duration: undefined,
             mainAudio: false,
             endAudio: false,
-            preloadAudio: true,
+            preloadAudio: 'none',
             loopAudio: true,
         };
 
         _options = extendParameters(_options, defaults);
 
-        if( _options.element ) {
+        if( _options.elements ) {
+            for( var i = 0; i < _options.elements.length; i++ ) {
+                bindElevateToElement( _options.elements[i] );
+            }
+        } else if( _options.element ) {
             bindElevateToElement( _options.element );
         }
 
@@ -207,16 +230,10 @@ var Elevator = function(options) {
 
         window.addEventListener('blur', onWindowBlur, false);
 
-        if( _options.mainAudio ) {
-            mainAudio = new Audio( _options.mainAudio );
-            mainAudio.setAttribute( 'preload', _options.preloadAudio );
-            mainAudio.setAttribute( 'loop', _options.loopAudio );
-        }
-
-        if( _options.endAudio ) {
-            endAudio = new Audio( _options.endAudio );
-            endAudio.setAttribute( 'preload', 'true' );
-        }
+        mainAudioPath = _options.mainAudio;
+        endAudioPath = _options.endAudio;
+        preloadAudio = _options.preloadAudio;
+        loopAudio = _options.loopAudio;
     }
 
     init(options);