volume slider

frontend/src/Call/components/MediaPlayer.css

@@ -49,6 +49,23 @@
     font-weight: bold;
     text-align: center;
   }
+  .volume-icon {
+    padding: 0px 15px 0px 15px;
+  }
+  .volume-slider {
+    padding: 0px 0px 0px 0px;
+  }
+  .icon-button-item {
+    cursor:pointer;
+    display: flex;
+  justify-content: center;
+  align-items: center;
+    padding: 5px;
+    width: 50px;
+    color: white;
+    font-weight: bold;
+  }
+
   .button-item {
     cursor:pointer;
     display: flex;

frontend/src/Call/components/MediaPlayer.js

@@ -6,6 +6,8 @@ import {
   Label,
   Grid,
   GridRow,
+  Header,
+  Popup,
   GridColumn,
   LabelGroup,
   Button
@@ -24,6 +26,7 @@ import "./MediaPlayer.css";
 const MediaPlayer = (props) => {
   const audioRef = React.createRef();
   const call = props.call;
+  const [volume, setVolume] = useState(1);
   const [sourceIndex, setSourceIndex] = useState(0);
   const [wavesurfer, setWavesurfer] = useState(null)
   const [isPlaying, setIsPlaying] = useState(false)
@@ -71,6 +74,12 @@ const MediaPlayer = (props) => {
     setSourceIndex(0);
   }, [call]);
 
+  useEffect(() => {
+    if (wavesurfer) {
+      wavesurfer.setVolume(volume);
+    }
+  }, [volume, wavesurfer]);
+
 
   const onReady = (ws) => {
     setWavesurfer(ws)
@@ -140,21 +149,38 @@ const MediaPlayer = (props) => {
 
     <div className="mediaplayer-container">
 
-
+      <div className="icon-button-item desktop-only" >
-
+        <Popup trigger={<Icon name='volume off' />} hoverable position='top center'>
-      <div className="button-item" onClick={onPlayPause}>
+          <Icon name='volume down' className="volume-icon" />
-          {
+          <input
-            isPlaying
+            className="volume-slider"
-              ? (<Icon name="pause" />)
+            type="range"
-              : (<Icon name="play" />)
+            min={0}
-          }
+            max={1}
+            step={0.02}
+            value={volume}
+            onChange={event => {
+              setVolume(event.target.valueAsNumber)
+            }}
+          />
+          <Icon name='volume up' className="volume-icon" />
+        </Popup>
       </div>
+
+      <div className="icon-button-item" onClick={onPlayPause}>
+        {
+          isPlaying
+            ? (<Icon name="pause" />)
+            : (<Icon name="play" />)
+        }
+      </div>
+
       <div className="mediaplayer-item">
 
         <WavesurferPlayer
           autoplay={true}
           height={25}
-          barWidth ={3}
+          barWidth={3}
           barGap={3}
           barRadius={6}
           waveColor="#E81B39"