Chip 2001 May/Chip_2001-05_cd2.bin/ChipCD/browsery/msie6_beta/iew2k_1.cab/browselc.dll/HTML/IBARMGR.JS

JavaScript | 2000-11-13 | 5.3 KB | 251 lines

//
// Global variables shared with the other pages
//


//
// Methods shared with the other pages
//
function BodyOnKeyPress(nCode)
{
  if (nCode == 27)  //ESC
  {
    window.close();
    return;
  }
}

function GetText(oTextInput)
{
  var szValue = oTextInput.value;
  return (szValue && szValue != oTextInput.initialText) ? szValue : '';
}

function PopulateLeftPane(szRelatedTasks, szLearnAbout, szDescription)
{
  idDescription.innerHTML = szDescription ? szDescription : '';

  if (szRelatedTasks && szRelatedTasks.length > 0)
  {
    idRelatedTaskLinks.innerHTML = szRelatedTasks;
    idRelatedTasks.style.display = 'block';
  }
  else
    idRelatedTasks.style.display = 'none';

  if (szLearnAbout && szLearnAbout.length > 0)
  {
    idLearnAboutLinks.innerHTML = szLearnAbout;
    idLearnAbout.style.display = 'block';
  }
  else
    idLearnAbout.style.display = 'none';
}


//
// Methods specific to the main frame
//


function PageInit()
{
  // Initialize globals
  g_Navigator = new Navigator(idContent);
  if (g_Navigator)
  {
    var ibarOC = window.dialogArguments;
    var ibarStart = ibarOC.start;
    if (ibarStart=="")
    {
      g_Navigator.navigate("mainpage.htm");
    }
    else
    {
      g_Navigator.navigate("settings.htm");
    }
  }
}

// Since this is a web page the user can select elements on the
// page. Since this is an app, selecting element is undesireable.
// Therefore we catch the start of a selection event and cancel it.
function OnSelectStart()
{
  // We still want to be able to select text in entry fields though.
  if (!event.srcElement.isTextEdit)
    event.returnValue = false;
}


//
// Navigator object implementation
//
var g_Navigator = null;

function push(url)
{
  if (url)
  {
    if (this.current < 0 || url != this.stack[this.current])
      this.stack[++this.current] = url;

    // Make sure there's nothing left on the stack after this
    this.stack.length = this.current + 1;
  }
}

function navigate(urlTo, bTrim)
{
  // Check for empty stack
  if (this.current < 0)
    bTrim = false;

  if (bTrim)
  {
  // Look backwards for the page, trimming as we go
    while (this.current >= 0)
    {
    // Trim the stack to the current location
      this.stack.length = this.current + 1;

    // Is the page here on the stack?
      if (urlTo == this.stack[this.current])
        break;

      if (0 == this.current)
      {
        // Got all the way back to the beginning and didn't
        // find it.  Push it and stop.
        this.push(urlTo);
        break;
      }

      --this.current;
    }
  }
  else
  {
  // Normal navigation
    this.push(urlTo);
  }

  this.SetBtnState();
  this.frame.navigate(urlTo);
}

function back(nCount)
{
  if (this.current > 0)
  {
    if (!nCount)
      nCount = 1;

    if (-1 == nCount)
      this.current = 0;
    else
      this.current = Math.max(0, this.current - nCount);

    this.frame.navigate(this.stack[this.current]);
  }
  this.SetBtnState();
}

function forward()
{
  if (this.current < this.stack.length - 1)
    this.frame.navigate(this.stack[++this.current]);
  this.SetBtnState();
}

function SetBtnState()
{
  idBackBtn.disabled = (this.current <= 0);
  if (idBackBtn.disabled)
    idBackBtn.src = "back.bmp";

  idForwardBtn.disabled = (this.current == this.stack.length - 1);
  if (idForwardBtn.disabled)
    idForwardBtn.src = "fwd.bmp";

  idHomeBtn.disabled = (this.current <= 0);
  if (idHomeBtn.disabled)
    idHomeBtn.src = "home.bmp";
}

function UpdateSelection()
{
  var ibarOC = window.dialogArguments;

  var iCount = ibarOC.count;
  var newHTML = "";

  if (iCount==0)
  {
    newHTML = "<I>There are currently no items on your Show menu</i>";
  }
  else if (iCount==1)
  {
    newHTML = "<I>Item currently on your Show menu</i><br><br>" + ibarOC.item(0).title;
  }
  else
  {
    newHTML = "<I>Items currently on your Show menu</i><br><br>";
    for (var i=0; i < iCount - 1; i++)
    {
      var itemClsid = ibarOC.item(i);
      newHTML = newHTML + itemClsid.title + ", ";
    }
    newHTML = newHTML + "and " + ibarOC.item(i).title;
  }
//  idSelection.innerHTML = newHTML;
}

function UpdateStack()
{
  var ibarOC = window.dialogArguments;
  var ibarStack  = ibarOC.stack;
  var iCount = ibarStack.count;
  var newHTML = "";

  if (iCount==0)
  {
    newHTML = "<I>There are currently no items on My Bar</i>";
  }
  else if (iCount==1)
  {
    newHTML = "<I>Item currently on My Bar</i><br><br>" + ibarStack.item(0).title;
  }
  else
  {
    newHTML = "<I>Items currently on My Bar</i><br><br>";
    for (var i=0; i < iCount - 1; i++)
    {
      var itemClsid = ibarStack.item(i);
      newHTML = newHTML + itemClsid.title + ", ";
    }
    newHTML = newHTML + "and " + ibarStack.item(i).title;
  }
//  idSelection.innerHTML = newHTML;
}

function Navigator(frame)
{
  // methods
  this.push = push;
  this.navigate = navigate;
  this.back = back;
  this.forward = forward;
  this.SetBtnState = SetBtnState;
  this.UpdateSelection = UpdateSelection;
  this.UpdateStack = UpdateStack;

  // properties
  this.frame = frame;
  this.current = -1;
  this.stack = new Array();

  this.SetBtnState();
}