Merge pull request 'KA CHING!' (#39) from nmeum/matekasse:ka-ching into master

Reviewed-on: anton/matekasse#39

Website/__init__.py

@@ -57,6 +57,10 @@ def create_app(test_config=None):
     def socketiojs():
         return send_file('../static/socket.io.js')
 
+    @app.route('/ka-ching.wav')
+    def kaching():
+        return send_file('../static/ka-ching.wav')
+
     @app.route('/new.css')
     def newcss():
         return send_file('../static/new.min.css')

Website/templates/base.html

@@ -8,6 +8,7 @@
     ></script>
     <link rel="stylesheet" href="/new.css">
 
+    <link rel="prefetch" href="/ka-ching.wav" />
     <link rel="shortcut icon" type="Logo/png" href="/ccc_logo.png"/>
     {% block customscript %}{% endblock %}
 </head>

Website/templates/list.html

@@ -4,6 +4,21 @@ Strichliste
 {% endblock %}
 {% block customscript %}
 <script type="text/javascript" charset="utf-8">
+    function play() {
+        return new Promise((resolve, reject) => {
+            var audio = new Audio('/ka-ching.wav');
+            audio.play();
+
+            audio.addEventListener("ended", function(){
+                resolve()
+            });
+        });
+    }
+
+    async function ka_ching(element) {
+        await play();
+        element.parentElement.submit();
+    }
     var socket = io();
     socket.on("update", function () {
         window.location = "http://matekasse.server.c3h/list"
@@ -28,7 +43,8 @@ Strichliste
 </form>
 <form action="/change" method="post" style="display: inline">
     <input name="id" type="hidden" value="{{user[0]}}">
-    <button type="submit" name="change" value={{preis}}>{{preis}}€</button>
+    <input name="change" value={{preis}} type="hidden">
+    <button onclick="ka_ching(this)" type="button">{{preis}}€</button>
 </form>
 <br style="line-height: 50%;"></br>
 {% endfor %}