Randomator.html

From:
"Richard Maher" <maher_rj@hotspamnotmail.com>
Newsgroups:
comp.lang.java.programmer,comp.lang.javascript
Date:
Tue, 2 Mar 2010 07:22:06 +0800
Message-ID:
<hmhht2$m8c$1@news-01.bur.connect.com.au>
Here's the main web-page "Randomator.html": -

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">

<html>

  <head>

    <meta name = "author"
          content = "Richard Maher"/>
    <meta name = "description"
          content = "Tier3Client random Employee picker"/>

    <style>

    html
    {
    height: 100%
    }

    body
    {
    background-color: Gray;
    margin: 0px;
    padding: 0px;
    }

    input.knob
    {
    font-family: arial;
    font-weight: bold;
    background-color: DarkGray;
    color: black;
    font-size: 18px;
    height: 26px;
    width: 20px;
    padding: 0px;
    margin: 1px;
    }

    .cntr
    {
    font-family: georgia;
    font-weight: bold;
    font-size: 18px;
    background-color: white;
    color: black;
    height: 20px;
    width: 30px;
    text-align: center;
    }

    table#empDetails caption
    {
    font-family: Arial;
    font-weight: bold;
    font-size: 12px;
    color: gray;
    }

    table#empDetails
    {
    width: 100%;
    }

    .promptItem
    {
    text-align: right;
    }

    .dataItem
    {
    font-weight: bold;
    }

    div#ctrlPanel
    {
    background-color: Turquoise;
    color: black;
    font-family: Georgia;
    font-size: 12px;
    margin: 0px;
    padding: 0px;
    border-style: solid;
    border-width: 1px;
    border-color: black;
    height: 30px;
    }

    .screenHdr
    {
    text-align: center;
    font-size: 22px;
    font-weight: bold;
    color: Black;
    }

    </style>

    <script type="text/javascript" src="Tier3Client.js" ></script>

    <script type="text/javascript">

    var t3Client;
    var fadeSecs;
    var empsCnt;

    EmpPicker.FADEMIN = 1000;
    EmpPicker.FADEMAX = 5000;
    EmpPicker.MAXEMPS = 5;

    EmpPicker.fadeDuration = 3000;
    EmpPicker.activeDivs = [];

    function EmpPicker()
    {
      var DIVCOLORS = new Array("lightgrey",
                                             "yellow",
                                             "magenta",
                                             "lawngreen",
                                             "cyan");
      var FADEINTERVAL = 50;
      var HDRHEIGHT = 30;
      var DIVWIDTH = 300;
      var DIVHEIGHT = 150;
      var BORDERWIDTH = 4;

      var targetDiv = document.createElement("div");
      var startTime;
      var endTime;
      var fadeDuration;

      var shuttingDown = false;

      targetDiv.style.visibility = "hidden";
      targetDiv.style.position = "absolute";
      targetDiv.style.width = DIVWIDTH+"px";
      targetDiv.style.height = DIVHEIGHT+"px";

      var colorIndex = EmpPicker.activeDivs.length %
                                   DIVCOLORS.length;
      targetDiv.style.backgroundColor
                                 = DIVCOLORS[colorIndex];

      targetDiv.style.color = "black";
      targetDiv.style.fontSize = "12px";
      targetDiv.style.borderTop = "1px solid black";
      targetDiv.style.borderRight= "3px solid black";
      targetDiv.style.borderBottom
                                 = "3px solid black";
      targetDiv.style.borderLeft = "1px solid black";
      targetDiv.style.padding = "0px";
      targetDiv.style.margin = "0px";

      document.body.appendChild(targetDiv);

      var eventsMgr = function()
      {
        var AST = 0;

        var setAST =
          function(entryPoint,timer){
            AST = setTimeout(entryPoint,timer);
          };

        var cancelAST =
          function(){
            clearTimeout(AST);
          };

       return {
              setAST : setAST,
              cancelAST : cancelAST
              };
      }();

      var positionDiv =
        function(respMsg)
        {
// console.log("SeqNum = " + this.msgSeqNum);
          fadeSecs.value = this.msgSeqNum;
// console.log("after rendezvous");
          if (shuttingDown){
// this.rendezvous();
// alert("PD exit");
            return;
          }

          targetDiv.style.visibility = "hidden";
          targetDiv.style.opacity = "";
          targetDiv.style.filter = "";
          targetDiv.style.zIndex = "1000";

          var recType = respMsg.substr(0,2);

// t3Client.appendConsoleMsg("Checking recType [" + recType + "]");
// console.log("Checking recType [" + recType + "]");
          switch (recType)
          {
            case "00" :
// alert(respMsg.substr(2));
          this.rendezvous();
          t3Client.appendConsoleMsg("got error");
              break;
            case "31" :
// t3Client.appendConsoleMsg("setting target Div");
// console.log("setting target Div");
              try {
              targetDiv.innerHTML =
                  '<table border="0" cellpadding="1px" '
+
                  ' align="center" id="empDetails"> '
+
                  ' <caption>Totally Random Employee</caption>'
+
                  ' <tr><td class="promptItem">Employee Id: </td>'
+
                  ' <td class="dataItem">'+ respMsg.substr(2,5)
+'</td></tr>' +
                  ' <tr><td class="promptItem"> Name:</td>'
+
                  ' <td class="dataItem">'+ respMsg.substr(7,28)
+'</td></tr>' +
                  ' <tr><td class="promptItem">Sex: </td>'
+
                  ' <td class="dataItem">'+ respMsg.substr(35,1)
+'</td></tr>' +
                  ' <tr><td span class="promptItem">Department: </td>'
+
                  ' <td class="dataItem">'+ respMsg.substr(36,30)
+'</td></tr>' +
                  ' <tr><td class="promptItem">Current Salary: </td>'
+
                  ' <td class="dataItem">'+ respMsg.substr(66,12)
+'</td></tr>' +
                  ' <tr><td class="promptItem">Dept Average: </td>'
+
                  ' <td class="dataItem">'+ respMsg.substr(78,12)
+'</td></tr>' +
                  '</table><br>';
              }catch (err) {
          this.rendezvous();
                           var errMsg = "Error calling setting DIV: -\n";
                           for (var prop in err) {
                             errMsg += " Property: " + prop + " Value: " +
err[prop] + "\n";
                           }
                           errMsg += " toString() = " + err.toString() +
"\n";
                  t3Client.appendConsoleMsg(errMsg);
// console.log(errMsg);
                  throw new Error(errMsg);
              }
// t3Client.appendConsoleMsg("after target Div");
// console.log("after target Div");
              break;
            default :
              throw new Error("Received Invalid Record Type [" + recType +
"]");
          }
// t3Client.appendConsoleMsg("after recType");
// console.log("after recType");

          var canvas = function(){

            var height = 0;
            var width = 0;
            var scrollTop = 0;
            var scrollLeft = 0;

            if (window.innerHeight){
                width = window.innerWidth;
         height = window.innerHeight;
            }
            else if (document.documentElement &&
document.documentElement.clientHeight){
         width = document.documentElement.clientWidth;
         height = document.documentElement.clientHeight;
            }
            else if (document.body){
         width = document.body.clientWidth;
         height = document.body.clientHeight;
            }

            if (typeof( window.pageYOffset ) == 'number'){
                scrollTop = window.pageYOffset;
                scrollLeft = window.pageXOffset;
            }
            else if (document.documentElement &&
document.documentElement.scrollTop){
                scrollTop = document.documentElement.scrollTop;
                scrollLeft = document.documentElement.scrollLeft;
            }
            else if (document.body){
         scrollTop = document.body.scrollTop;
         scrollLeft = document.body.scrollLeft;
            }

            return {height : height, width : width, scrollTop : scrollTop,
scrollLeft : scrollLeft};

          }();

// console.log("after canvass");

          var divTop = Math.floor(Math.random()*(canvas.height -
                       (DIVHEIGHT + BORDERWIDTH + HDRHEIGHT)));
          divTop = divTop < 0 ? 0 : divTop;
          var divLeft = Math.floor(Math.random()*(canvas.width -
                       (DIVWIDTH + BORDERWIDTH)));
          divLeft = divLeft < 0 ? 0 : divLeft;

          targetDiv.style.left = divLeft + "px";
          targetDiv.style.top = (divTop + HDRHEIGHT) + "px";
          targetDiv.style.visibility = "visible";

          startTime = new Date().getTime();
          endTime = startTime + EmpPicker.fadeDuration;

          this.rendezvous();
          t3Client.appendConsoleMsg("after rendezvous" + this.msgSeqNum);
          fadeDuration = EmpPicker.fadeDuration
// console.log("before setast");
          eventsMgr.setAST(fadeIt,FADEINTERVAL);
// console.log("after setast");

        }

      var fadeIt =
        function(){
          var now = new Date().getTime();
          if (now >= endTime) {
            targetDiv.style.visibility = "hidden";
            eventsMgr.setAST(carousel,300);
          }else{
            var fadeFactor = 1 - (now - startTime) / fadeDuration;
            targetDiv.style.opacity = fadeFactor;
            targetDiv.style.filter = "alpha(opacity="+(fadeFactor*100)+")";
            targetDiv.style.zIndex--;
            eventsMgr.setAST(fadeIt,FADEINTERVAL);
          }
        }

      var carousel =
        function(){
          if (shuttingDown){
// alert("no go");
            return;
          }
          t3Client.send("30",positionDiv,false);
        }

      this.shutdown =
        function(){
          shuttingDown = true;
          eventsMgr.cancelAST();
          targetDiv.style.visibility = "hidden";
          document.body.removeChild(targetDiv);
          targetDiv = null;
        }

      EmpPicker.activeDivs.push(this);
      eventsMgr.setAST(carousel,0);

      return this;
    }

    function load()
    {
      fadeSecs = document.getElementById("fadeSecs");
      empsCnt = document.getElementById("empsCnt");

      try {
        t3Client = new Tier3Client(
                       "Demo", "http://192.168.1.159/Applets/",
                       2048, 1022, "ISO-8859-1", "N", Tier3Client.GUIAWT,
                       null,Tier3Client.WARNING);
      } catch (err){
        alert((err.description||err.message));
        throw err;
      }

      if (t3Client == null || t3Client == undefined) {
        alert("Error connecting to Tier3 Client")
        throw new Error("Could not activate Tier3 Client");
      }

      fadeSecs.value = EmpPicker.fadeDuration / 1000;

      t3Client.appendConsoleMsg("Employee Randomator successfully loaded");

      addEmp();

      return;
    }

    function setDuration(stepValue)
    {
      var newDuration = EmpPicker.fadeDuration + stepValue;
      if (newDuration < EmpPicker.FADEMIN || newDuration >
EmpPicker.FADEMAX)
        return;

      EmpPicker.fadeDuration = newDuration;
      fadeSecs.value = EmpPicker.fadeDuration / 1000;

    }

    function addEmp()
    {
      if (EmpPicker.activeDivs.length == EmpPicker.MAXEMPS)
        return;

      var newEmp = new EmpPicker();
      empsCnt.value = EmpPicker.activeDivs.length;
    }

    function delEmp()
    {
      if (EmpPicker.activeDivs.length == 0)
        return;

      var victim = EmpPicker.activeDivs.pop();
      victim.shutdown();

      empsCnt.value = EmpPicker.activeDivs.length;

    }

  </script>

  </head>
  <body onload="load();" onunload="(function(){});">
    <div id="ctrlPanel">
       <table
         style="table-layout: fixed;"
         width="100%"
         border="0"
         frame="void"
         cellpadding="0"
         cellspacing="0"
         rules="none"
       >
         <tr
           valign="middle"
         >
           <td
             width="40%"
             style="text-align: right;"
             valign="middle"
            >
Fade Duration :
            <input
              type="button"
              class="knob"
              onclick="setDuration(1000)"
              name="fadeUp"
              value="^"
              title="Increase Fade Time"
            />
            <input
               type="text"
               class="cntr"
               id="fadeSecs"
               readonly="readonly"
               value="0"
               size=3
               title="Duration of fade in seconds"
            />
            <input
              type="button"
              class="knob"
              style="font-size: 14px;"
              onclick="setDuration(-1000)"
              name="fadeDown"
              value="v"
              title="Decrease Fade Time"
            />
           </td>
           <td
             width="20%"
             class="screenHdr"
             valign="middle"
           >Randomator</td>

           <td
             width="40%"
             style="text-align: left;"
             valign="middle"
           >
            <input
              type="button"
              class="knob"
              onclick="addEmp()"
              name="empsUp"
              value="^"
              title="Pick more employees"
            />
            <input
               type="text"
               class="cntr"
               id="empsCnt"
               readonly="readonly"
               value="0"
               size=3
               title="Number of employees to pick"
            />
            <input
              type="button"
              class="knob"
              style="font-size: 14px;"
              onclick="delEmp()"
              name="empsDown"
              value="v"
              title="Pick fewer employees"
            />
: Concurrent Selections
           </td>
         </tr>
      </table>
    </div>
  </body>
</html>

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