source: gs2-extensions/video-and-audio/trunk/src/web/script/document.js@ 23409

  function format_date (gsdate,mode) 
  {
       var year_num  = gsdate.substr(0,4);
       var month_num = gsdate.substr(4,2);
       var date_num  = gsdate.substr(6,2);

       var date = new Date(year_num,month_num-1,date_num)

       var date_str = date.toLocaleDateString();

       if ((mode != undefined) && (mode == "alphanum"))
       {
           var dayname   = new Array("Sunday","Monday","Tuesday","Wednesday",
                                     "Thursday","Friday","Saturday");
           var monthname = new Array("Jan","Feb","Mar","Apr","May","Jun","Jul",
                                     "Aug","Sep","Oct","Nov","Dec");

           var day_alpha   = dayname[date.getDay()];
           var month_alpha = monthname[date.getMonth()];

           date_str = day_alpha +", "
                       + date_num +" "+ month_alpha +" "+ year_num;
        }

       document.write(date_str);
  }

  function format_filesize (gsfilesize) 
  {
      var filesize = gsfilesize + " bytes";

      if (gsfilesize > 1048576) {
        filesize = Math.round(gsfilesize / 1048576.0) + " Mb"
      }
      else if (gsfilesize > 1024) {
        filesize = Math.round(gsfilesize / 1024.0) + " Kb"
      }

      document.write(filesize);
  }



function getOpenBookTable() {

        var tabTocA = document.getElementById("toc");

        // book icon and toc wrapper
        var tablesOuter = tabTocA.parentNode.getElementsByTagName("table")

        return tablesOuter.item(0);

}

function getTocTable() {

        var tabTocA = document.getElementById("toc");

        // book icon and toc wrapper
        var tablesOuter = tabTocA.parentNode.getElementsByTagName("table")
        
        var tabWrap = tablesOuter.item(1);

        var tables = tabWrap.getElementsByTagName("table")

        return tables.item(0);

}




function manipulateTocTable() {

    var tabOB= getOpenBookTable();

    if (tabOB != null) {
      var expandText = document.getElementById("db-expand-text");
      var highlight  = document.getElementById("db-highlight");
      var parentDB = expandText.parentNode;

      parentDB.removeChild(expandText);
      parentDB.removeChild(highlight);

      var tbodyOB = tabOB.firstChild;
      var trOB = tbodyOB.firstChild;
      trOB.appendChild(expandText);
      trOB.appendChild(highlight);

      tabOB.setAttribute("width","100%");
      
      // tabOB.setAttribute("bgcolor","red");
    }


    var tabToc= getTocTable();

    if (tabToc != null) {

        var tablePack = document.createElement("table");
        var tbodyPack = document.createElement("tbody");
        tablePack.appendChild(tbodyPack);

        var trPack = document.createElement("tr");
        trPack.setAttribute("bgColor","#e0f0ff");


        var trList = tabToc.getElementsByTagName("tr")

        // repack into 3-col table
        var i;
        for (i=0; i<trList.length; i++) {
          if ((i>0) && (i % 3 == 0)) {
            tbodyPack.appendChild(trPack);
            trPack = document.createElement("tr");
        trPack.setAttribute("bgColor","#e0f0ff");
          }
          var tr = trList.item(i);
          var tdList = tr.getElementsByTagName("td");

          //console.log("tdList = " + tdList.length);

          var tdLink = tdList.item(0);
          var href = tdLink.firstChild.href;

          href = "javascript:htmlLoad(\""+href+"&onlytext=1\",\"ajaxtext\")";

          var tdText = tdList.item(2);

          var aPack = document.createElement("a");
          aPack.setAttribute("href",href);
          aPack.setAttribute("class","toc");
          aPack.innerHTML = tdText.innerHTML;

          var iPack = document.createElement("i");
          iPack.appendChild(aPack);

          //var tdPack = tdText.cloneNode(true);
          var tdPack = document.createElement("td");
          tdPack.appendChild(iPack);

          // var textText = document.createTextNode(tdText.innerHTML);

          // tdPack.appendChild(textText);

          // tdPack.setAttribute("bgcolor","blue");
          trPack.appendChild(tdPack);

        }

        tbodyPack.appendChild(trPack);

        // find outer table element, and replace with new compact TOC
        var newTocLoc = tabToc.parentNode;
        while (!newTocLoc.nodeName.match(/^table$/i)) {
            newTocLoc = newTocLoc.parentNode;
        }

        
        // set up list of TOC chapter headings (used when video player is shown)

        //var tocList = document.createElement("div");
        //tocList.setAttribute("style","display: block");

        var tocList  = document.getElementById("toclist");

        for (i=0; i<trList.length; i++) {
          var tr = trList.item(i);
          var tdList = tr.getElementsByTagName("td");
          var tdText = tdList.item(1);

          // alert("tdText = " + tdText.innerHTML);

          var tocEntry = document.createElement("div");
          tocEntry.style.display = "none";

          tocEntry.innerHTML = tdText.innerHTML;

          //tocEntry.appendChild(tdText);

          tocList.appendChild(tocEntry);
        }
    

        // delay replace until here so toclist can access trList
        // in IE, doing replace earlier means trList becomes empty
        newTocLoc.parentNode.replaceChild(tablePack,newTocLoc);    

    }
    else {
      var mess = "Warning: Didn't find TOC table where expected in DOM";
      mess += "\n Found <" + tabToc.nodeName + ">instead of <table>";
      mess += "\n Unable to manipulate: " + tabToc.nodeValue;
 
      alert(mess);
    }

}


    var flowplayervisible = 1;
    var storedFlowplayerHeight = null;

    function flowplayershow() 
     {
        if (flowplayervisible) return; // already visible

        divTOCtableElem = document.getElementById("toctable");
    divTOCtableElem.style.display = "none";

        divTOCnextprevElem = document.getElementById("tocnextprev");
    divTOCnextprevElem.style.display = "block";

        var divFlowplayerElem = document.getElementById("FlowPlayerDiv");
    divFlowplayerElem.style.visibility = "visible";

    if (storedFlowplayerHeight != null) {
        divFlowplayerElem.style.height = storedFlowplayerHeight;
        }

    var flowPlayer = document.getElementById("FlowPlayer");

    if (flowPlayer.DoPlay) {
        flowPlayer.DoPlay();
    }

        flowplayervisible = 1;
      }

    function flowplayerhide() 
     {
        if (!flowplayervisible) return; // already hidden


        divTOCnextprevElem = document.getElementById("tocnextprev");
    divTOCnextprevElem.style.display = "none";

        var divFlowplayerElem = document.getElementById("FlowPlayerDiv");

    if (parseInt(divFlowplayerElem.style.height) != "0") {
        storedFlowplayerHeight = divFlowplayerElem.style.height;
    }
    divFlowplayerElem.style.height = "0px";
    divFlowplayerElem.style.visibility = "hidden";

        divTOCtableElem = document.getElementById("toctable");
    divTOCtableElem.style.display = "block";

        var flowPlayer = document.getElementById("FlowPlayer");

    if (flowPlayer.Pause) {
        flowPlayer.Pause();
    }

        flowplayervisible = 0;
      }

    var storedseek;
    var delayedSafetyLimit = 0;

    function videoplayerseekDelayed() 
     {
          var flowPlayer = document.getElementById("FlowPlayer");

          if (flowPlayer.Seek) {
         flowPlayer.Pause();
         flowPlayer.Seek(storedseek);
         flowPlayer.DoPlay()
          }
      else {
         if (delayedSafetyLimit<10) {
           delayedSafetyLimit++;
           setTimeout("videoplayerseekDelayed()",2000);
             }
         else {
           alert("Failed to start at seeked position " + storedseek);
         }
      }

      }


    function videoplayerseek(hh,mm,ss) 
     {
      flowplayershow();

          storedseek = hh*3600 + mm*60 + ss -2;

          var flowPlayer = document.getElementById("FlowPlayer");

          if (flowPlayer.Seek) {
          videoplayerseekDelayed();
          }
      else {
         delayedSafetyLimit = 0;
         setTimeout("videoplayerseekDelayed()",7000);
      }

      }

    function audioplayerseek(hh,mm,ss) 
     {
          storedseek = hh*3600 + mm*60 + ss -2;

          var flowPlayer = document.getElementById("FlowPlayer");

          if (flowPlayer.Seek) {
          videoplayerseekDelayed();
          }
      else {
         delayedSafetyLimit = 0;
         setTimeout("videoplayerseekDelayed()",7000);
      }

      }


      function onCuePoint(cuePoint) 
      {
           if (cuePoint.type != "event") { return; }

      var tocList = document.getElementById("toclist");

      var tocEntries = tocList.getElementsByTagName("div");
      var parameters = cuePoint.parameters;
      var secNum = cuePoint.parameters.sectionnum;

      var tocNum = secNum-1;

      tocLen = tocEntries.length;

      var i;
      for (i=0; i<tocLen; i++)
      {
            var tocItem = tocEntries.item(i);

            if (i==tocNum-1) {
          var prevImg = document.getElementById("tocless");
          prevImg.setAttribute("title",tocItem.innerHTML);
        }


        if (i!=tocNum) {
              tocItem.style.display = "none";
        }
        else {
              tocItem.style.display = "block";

          // load in matching document-section text
          var url = document.location.toString();

          var nexturl = url;
          var nextSecNum = tocNum + 1;

          var doccutoff = url.lastIndexOf("&d=");
          var dotcutoff = url.lastIndexOf(".");

          if (dotcutoff>doccutoff) {
            nexturl = url.substring(0,dotcutoff);
          }

          nexturl = nexturl + "." + nextSecNum + "&onlytext=1";
          //alert("nexturl = " + nexturl);

          htmlLoad(nexturl,"ajaxtext");

        }

            if (i==tocNum+1) {
          var moreImg = document.getElementById("tocmore");
          moreImg.setAttribute("title",tocItem.innerHTML);
        }

      }


      }




  function htmlLoad(url,locid)
  {
    var xmlHttp;
    try {
      // Firefox, Opera 8.0+, Safari
      xmlHttp=new XMLHttpRequest();
    }
    catch (e) {
      // Internet Explorer
      try {
        xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
      }
      catch (e) {
        try {
          xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
        }
        catch (e) {
          alert("Your browser does not support AJAX!");
          return false;
        }
      }
    }

    xmlHttp.onreadystatechange=function() {
      if(xmlHttp.readyState==4) {
        var locelem = document.getElementById(locid);
        
        locelem.innerHTML = xmlHttp.responseText;
      }
    }

    xmlHttp.open("GET",url,true);
    xmlHttp.send(null);
  }

  
  
  
  function displayDateTimeLocale(datetimebroadcasted) 
    {
     var year = datetimebroadcasted.substr(0,4);
     var month = datetimebroadcasted.substr(4,2);
     var day = datetimebroadcasted.substr(6,2);
     var hours = datetimebroadcasted.substr(8,2);
     var minutes = datetimebroadcasted.substr(10,2);
     var seconds = datetimebroadcasted.substr(12,2);
     var date = new Date(year, month*1-1, day, hours, minutes, seconds)
     document.write(date.toLocaleString());
    }
    
    function displayRemainingDaysToKeep(datetimebroadcasted,daysToKeep)
    {
     var oneDayInMs = 1000*60*60*24;
     var year = datetimebroadcasted.substr(0,4);
     var month = datetimebroadcasted.substr(4,2);
     var day = datetimebroadcasted.substr(6,2);
     var displayString = "";
     var importedDate = new Date(year, month*1-1, day);
     var nowDate = new Date();
     var endDate = new Date(year, month*1-1, day*1+daysToKeep);
     var daysLeft = Math.ceil((endDate.getTime()-nowDate.getTime())/(oneDayInMs));
     
     if (daysLeft >= 1)
        { displayString = "This video has " + daysLeft + " day(s) remaining before expiration."; }
     else
        { displayString = "This video has expired, it will be deleted very soon."; }
     
     document.write(displayString);
    }