luaHTTP: behave like oldHTTP for seeking

Close #5345
Patch by jikuja

share/lua/http/js/controlers.js

@@ -10,7 +10,7 @@ function updateStatus(){
 				$('#mediaTitle').append($('[name="filename"]',data).text());
 				$('#totalTime').append(format_time($('length',data).text()));
 				$('#currentTime').append(format_time($('time',data).text()));
-				$('#seekSlider').slider({value: ($('time',data).text()/$('length',data).text()*100) })
+				$('#seekSlider').slider({value: ($('position',data).text()*100) });
 				$('#currentVolume').append(Math.round($('volume',data).text()/5.12)+'%');
 				$('#volumeSlider').slider({value: ($('volume',data).text()/5.12) });
 				$('#rateSlider').slider({value: ($('rate',data).text()) });

share/lua/http/js/ui.js

@@ -8,7 +8,7 @@ $(function(){
 			$( "#currentTime" ).empty().append( format_time(Math.round((ui.value/100)*$('#seekSlider').attr('totalLength'))) );
 			switch(current_que){
 				case 'main':
-					sendCommand({'command':'seek','val':Math.round((ui.value/100)*$('#seekSlider').attr('totalLength'))});
+					sendCommand({'command':'seek','val':(ui.value)+'%'});
 					break;
 				case 'stream':
 					sendVLMCmd('control Current seek '+ui.value);