javascript - Is it possible to show retrieved comments as elapsed time goes by? -


assuming there media(video) player on web page.

on flash,

<button name="test" onclick="alert(math.floor(jwplayer().getposition())+ 'secs elapsed!');">elapsed time</button>

this code shows elapsed time of video

on html5,

<button name="test" onclick="alert(math.floor(document.getelementbyid('video').currenttime) + 'secs elapsed!');">elapsed time</button>

this code shows elapsed time of video

i'm thinking of storing comments, , it's elapsed time database.

then automatically loads comments of particular video when user load page.
, displays each comment elapsed time goes by(my image pop-up)

is possible jquery(or javascript)? if how? can show me how implement easily.

if there comment this

  • at 5 secs "hello! 5 secs has past"
  • at 20 secs "hello! 20 secs has past"
  • at 35 secs "hello! 35 secs has past"
  • at 35 secs "hello! 35 secs has past. part2"
  • at 60 secs "hello! 35 secs has past"

update:

<!doctype html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> <meta charset="utf-8"> <title>test</title>     <script src="http://code.jquery.com/jquery-1.10.2.js" type="text/javascript"></script> <meta name="keywords" content=""> <meta name="description" content="">  <script type="text/javascript"> jquery(document).ready(function () {     var comments = [{'time':'5','message':'hello! 5 secs has past'},{'time':'10','message':'hello! 10 secs has past'},{'time':'30','message':'hello! 15 secs has past'}];      $('#video').on('timeupdate',function(e){         showcomments(this.currenttime);     });      function showcomments(time){         var comments = findcomments(time);         $.each(comments,function(i,comment){             alert(comment.message);         });     }      function findcomments(time){         return $.grep(comments, function(item){           return item.time == time.tofixed();         });     } } </script>  </head>   <body>  <video id='video'       controls preload='none'        poster="http://media.w3.org/2010/05/sintel/poster.png">       <source id='mp4'         src="http://media.w3.org/2010/05/sintel/trailer.mp4"         type='video/mp4'>       <source id='webm'         src="http://media.w3.org/2010/05/sintel/trailer.webm"         type='video/webm'>       <source id='ogv'         src="http://media.w3.org/2010/05/sintel/trailer.ogv"         type='video/ogg'>       <p>your user agent not support html5 video element.</p>     </video>   </body></html>

here's sample code can use starting point, using html5 javascript api

demo fiddle

//store comments in array objects time , message var comments = [{'time':'5','message':'hello! 5 secs has past'},{'time':'10','message':'hello! 10 secs has past'},{'time':'15','message':'hello! 15 secs has past'}];  //bind timeupdate event $('#video').on('timeupdate',function(e){     showcomments(this.currenttime); });  //show comments function showcomments(time){     var comments = findcomments(time);     $.each(comments,function(i,comment){         alert(comment.message);     }); }  //find comments current time function findcomments(time){     return $.grep(comments, function(item){       return item.time == time.tofixed(); //remove decimals check whole seconds     }); }

you can read more video api here

also, should note timeupdate event fired @ different intervals in different browsers, check this question more info.


-

Comments

Post a Comment

Popular posts from this blog

scala - 'wrong top statement declaration' when using slick in IntelliJ -

Image
i'm porting project scala 2.9 2.10, therefore have use slick instead of scalaquery. i'm using slick 2.1.0 since supports ms access. according this tutorial , upgrade guide changed robs object class , added val robs : why error message wrong top statement declaration , how rid of it? edit: i'm new scala... according this question seems can't put val outside of methods or classes, right? code above directly in packge. right approach slick then? should move code in class or trait? according this changed val robs = tablequery[robs] to object robs extends tablequery(new robs(_)) {} . no warnings or errors anymore. :)
Read more

c# - DevExpress.Wpf.Grid.InfiniteGridSizeException was unhandled -

Image
when using devexpress, see error: devexpress.wpf.grid.infinitegridsizeexception unhandled message="by default, infinite grid height not allowed since grid rows rendered , hence grid work slowly. fix issue, should place grid container give finite height grid, or should manually specify grid's height or maxheight. note can avoid exception setting gridcontrol.allowinfinitegridsize static property true, in case grid run slowly." the problem dxgrid has infinite height. to fix, set height non-infinite. snoop absolutely invaluable this: if "height" xaml element infinite (i.e. 0 or nan ), can set using one of following: option 1: height="{binding path=actualheight, relativesource={relativesource mode=findancestor, ancestortype=uielement}}" option 2: verticalalignment="stretch" option 3: height="auto" hint: use verticalalignment="stretch" if child of grid <rowdefinition height=
Read more

PySide and Qt Properties: Connecting signals from Python to QML -

i trying run simple pyside appliccation design made in qml. call function in qml python in separated thread. i have following qml view: import qt 4.7 rectangle { visible: true width: 100; height: 100 color: "lightgrey" text { id: datestr objectname: "datestr" x: 10 y: 10 text: "init text" font.pixelsize: 12 function updatedata(text) { datestr.text = qstr(text) console.log("you said: " + text) } } } here application: some imports.... #!/usr/bin/python import sys import time pyside import qtdeclarative, qtcore pyside.qtgui import qapplication pyside.qtdeclarative import qdeclarativeview the qthread worker.... #worker thread class worker(qtcore.qthread): updateprogress = qtcore.signal(int) def __init__(self, child): qtcore.qthread.__init__(self) self.child = child def run(self):
Read more