fix video loop can't set currentTime bug

dev/audioplayer_control/control.js

@@ -117,8 +117,8 @@
             }
         };
         showTime = function() {
-            bar_context.value = that.video.currentTime;
-            time_context.innerHTML = timeFormat(that.video.duration - that.video.currentTime);
+            bar_context.value = that.audio.currentTime;
+            time_context.innerHTML = timeFormat(that.audio.duration - that.audio.currentTime);
             that.video.volume = 0;
         };
         if (that.type !== "video/mp4") {
@@ -255,7 +255,9 @@
                     requestFullScreen();
                 }
             }), loopEventListener(video, "play", false, function(event) {
+                if (g.video.currentTime) {
                     g.audio.currentTime = g.video.currentTime;
+                }
             }), loopEventListener(bar_context, "mousemove", false, function(event) {
                 var time = getTime(bar_context, event.clientX);
                 box_context.style.left = (event.clientX - 20) / 16 + "em";

src/audioplayer_control/control.js

@@ -159,9 +159,9 @@
       }
     };
     showTime = function () {
-      bar_context.value = that.video.currentTime;
-      time_context.innerHTML = timeFormat(that.video.duration -
-                                          that.video.currentTime);
+      bar_context.value = that.audio.currentTime;
+      time_context.innerHTML = timeFormat(that.audio.duration -
+                                          that.audio.currentTime);
       that.video.volume = 0;
     };
     if (that.type !== "video/mp4") {
@@ -349,7 +349,9 @@
             }),
 
             loopEventListener(video, "play", false, function (event) {
+              if (g.video.currentTime) {
                 g.audio.currentTime = g.video.currentTime;
+              }
             }),
 
             loopEventListener(bar_context, "mousemove",