/**
 * SUBMODAL v1.6
 * Used for displaying DHTML only popups instead of using buggy modal windows.
 *
 * By Subimage LLC
 * http://www.subimage.com
 *
 * Contributions by:
 * 	Eric Angel - tab index code
 * 	Scott - hiding/showing selects for IE users
 *	Todd Huss - inserting modal dynamically and anchor classes
 *
 * Up to date code can be found at http://submodal.googlecode.com
 */

/**
 * Para aunmentar el dominio del dialogo modal
 */
 var iosModal = new Object();

// Popup code
iosModal.gPopupMask = null;
iosModal.gPopupContainer = null;
iosModal.gPopFrame = null;
iosModal.gReturnFunc;
iosModal.gPopupIsShown = false;
iosModal.gDefaultPage = "media/system/html/loading.html";
iosModal.gHideSelects = false;
iosModal.gReturnVal = null;

iosModal.gTabIndexes = new Array();
// Pre-defined list of tags we want to disable/enable tabbing into
iosModal.gTabbableTags = new Array("A","BUTTON","TEXTAREA","INPUT","IFRAME");	

// If using Mozilla or Firefox, use Tab-key trap.
if (!document.all) {
	document.onkeypress = iosModal.keyDownHandler;
}

/**
 * Initializes popup code on load.	
 */
iosModal.initPopUp = function () {
	// Add the HTML to the body
	theBody = document.getElementsByTagName('BODY')[0];
	popmask = document.createElement('div');
	popmask.id = 'popupMask';
	popcont = document.createElement('div');
	popcont.id = 'popupContainer';
	popcont.innerHTML = '' +
		'<div id="popupInner">' +
			'<div id="popupTitleBar">' +
				'<div id="popupTitle"></div>' +
				'<div id="popupControls">' +
					'<img src="media/system/images/close.gif" onclick="iosModal.hidePopWin(false);" id="popCloseBox" />' +
				'</div>' +
			'</div>' +
			'<iframe src="'+ iosModal.gDefaultPage +'" style="width:100%;height:100%;background-color:transparent;" scrolling="auto" frameborder="0" allowtransparency="true" id="popupFrame" name="popupFrame" width="100%" height="100%"></iframe>' +
		'</div>';
	theBody.appendChild(popmask);
	theBody.appendChild(popcont);
	
	iosModal.gPopupMask = document.getElementById("popupMask");
	iosModal.gPopupContainer = document.getElementById("popupContainer");
	iosModal.gPopFrame = document.getElementById("popupFrame");	
	
	// check to see if this is IE version 6 or lower. hide select boxes if so
	// maybe they'll fix this in version 7?
	var brsVersion = parseInt(window.navigator.appVersion.charAt(0), 10);
	if (brsVersion <= 6 && window.navigator.userAgent.indexOf("MSIE") > -1) {
		iosModal.gHideSelects = true;
	}
	
	// Add onclick handlers to 'a' elements of class submodal or submodal-width-height
	var elms = document.getElementsByTagName('a');
	for (i = 0; i < elms.length; i++) {
		if (elms[i].className.indexOf("submodal") == 0) { 
			// var onclick = 'function (){iosModal.showPopWin(\''+elms[i].href+'\','+width+', '+height+', null);return false;};';
			// elms[i].onclick = eval(onclick);
			elms[i].onclick = function(){
				// default width and height
				var width = 400;
				var height = 200;
				// Parse out optional width and height from className
				params = this.className.split('-');
				if (params.length == 3) {
					width = parseInt(params[1]);
					height = parseInt(params[2]);
				}
				iosModal.showPopWin(this.href,width,height,null); return false;
			}
		}
	}
}
iosModalAddEvent(window, "load", iosModal.initPopUp);

 /**
	* @argument width - int in pixels
	* @argument height - int in pixels
	* @argument url - url to display
	* @argument returnFunc - function to call when returning true from the window.
	* @argument showCloseBox - show the close box - default true
	*/
iosModal.showPopWin = function (url, width, height, returnFunc, showCloseBox) {
	// show or hide the window close widget
	if (showCloseBox == null || showCloseBox == true) {
		document.getElementById("popCloseBox").style.display = "block";
	} else {
		document.getElementById("popCloseBox").style.display = "none";
	}
	iosModal.gPopupIsShown = true;
	iosModal.disableTabIndexes();
	iosModal.gPopupMask.style.display = "block";
	iosModal.gPopupContainer.style.display = "block";
	// calculate where to place the window on screen
	iosModal.centerPopWin(width, height);
	
	var titleBarHeight = parseInt(document.getElementById("popupTitleBar").offsetHeight, 10);


	iosModal.gPopupContainer.style.width = width + "px";
	iosModal.gPopupContainer.style.height = (height+titleBarHeight) + "px";
	
	iosModal.setMaskSize();

	// need to set the width of the iframe to the title bar width because of the dropshadow
	// some oddness was occuring and causing the frame to poke outside the border in IE6
	iosModal.gPopFrame.style.width = parseInt(document.getElementById("popupTitleBar").offsetWidth, 10) + "px";
	iosModal.gPopFrame.style.height = (height) + "px";
	
	// set the url
	iosModal.gPopFrame.src = url;
	
	iosModal.gReturnFunc = returnFunc;
	// for IE
	if (iosModal.gHideSelects == true) {
		iosModal.hideSelectBoxes();
	}
	
	window.setTimeout("iosModal.setPopTitle();", 600);
}

//
iosModal.gi = 0;
iosModal.centerPopWin = function (width, height) {
	if (iosModal.gPopupIsShown == true) {
		if (width == null || isNaN(width)) {
			width = iosModal.gPopupContainer.offsetWidth;
		}
		if (height == null) {
			height = iosModal.gPopupContainer.offsetHeight;
		}
		
		//var theBody = document.documentElement;
		var theBody = document.getElementsByTagName("BODY")[0];
		//theBody.style.overflow = "hidden";
		var scTop = parseInt(getScrollTop(),10);
		var scLeft = parseInt(theBody.scrollLeft,10);
	
		iosModal.setMaskSize();
		
		//window.status = iosModal.gPopupMask.style.top + " " + iosModal.gPopupMask.style.left + " " + iosModal.gi++;
		
		var titleBarHeight = parseInt(document.getElementById("popupTitleBar").offsetHeight, 10);
		
		var fullHeight = getViewportHeight();
		var fullWidth = getViewportWidth();
		
		iosModal.gPopupContainer.style.top = (scTop + ((fullHeight - (height+titleBarHeight)) / 2)) + "px";
		iosModal.gPopupContainer.style.left =  (scLeft + ((fullWidth - width) / 2)) + "px";
		//alert(fullWidth + " " + width + " " + iosModal.gPopupContainer.style.left);
	}
}
iosModalAddEvent(window, "resize", iosModal.centerPopWin);
iosModalAddEvent(window, "scroll", iosModal.centerPopWin);
window.onscroll = iosModal.centerPopWin;


/**
 * Sets the size of the popup mask.
 *
 */
iosModal.setMaskSize = function () {
	var theBody = document.getElementsByTagName("BODY")[0];
			
	var fullHeight = getViewportHeight();
	var fullWidth = getViewportWidth();
	
	// Determine what's bigger, scrollHeight or fullHeight / width
	if (fullHeight > theBody.scrollHeight) {
		popHeight = fullHeight;
	} else {
		popHeight = theBody.scrollHeight;
	}
	
	if (fullWidth > theBody.scrollWidth) {
		popWidth = fullWidth;
	} else {
		popWidth = theBody.scrollWidth;
	}
	
	iosModal.gPopupMask.style.height = popHeight + "px";
	iosModal.gPopupMask.style.width = popWidth + "px";
}

/**
 * @argument callReturnFunc - bool - determines if we call the return function specified
 * @argument returnVal - anything - return value 
 */
iosModal.hidePopWin = function (callReturnFunc) {
	iosModal.gPopupIsShown = false;
	var theBody = document.getElementsByTagName("BODY")[0];
	theBody.style.overflow = "";
	iosModal.restoreTabIndexes();
	if (iosModal.gPopupMask == null) {
		return;
	}
	iosModal.gPopupMask.style.display = "none";
	iosModal.gPopupContainer.style.display = "none";
	if (callReturnFunc == true && iosModal.gReturnFunc != null) {
		// Set the return code to run in a timeout.
		// Was having issues using with an Ajax.Request();
		iosModal.gReturnVal = window.frames["popupFrame"].returnVal;
		window.setTimeout('iosModal.gReturnFunc(iosModal.gReturnVal);', 1);
	}
	iosModal.gPopFrame.src = iosModal.gDefaultPage;
	// display all select boxes
	if (iosModal.gHideSelects == true) {
		iosModal.displaySelectBoxes();
	}
}

/**
 * Sets the popup title based on the title of the html document it contains.
 * Uses a timeout to keep checking until the title is valid.
 */
iosModal.setPopTitle = function () {
  var stitle = null;
  var frm    = window.frames["popupFrame"];
  
  if (frm.document!=undefined 
      && typeof(frm.document)!="undefined" 
      && frm.document!=null 
      && frm.document.location!=undefined 
      && typeof(frm.document.location)!="undefined" 
      && frm.document.location!=null ) {
          var href = frm.document.location.href;
          if (href.toLowerCase().indexOf('loading.html') >= 0) {
                  window.setTimeout("iosModal.setPopTitle();", 10);
                  return;
          }
  }else{
          window.setTimeout("iosModal.setPopTitle();", 10);
          return;
  } 
  
  
  if (frm.document!=undefined 
      && typeof(frm.document)!="undefined" 
      && frm.document!=null 
      && frm.document.title!=undefined 
      && typeof(frm.document.title)!="undefined" 
      && frm.document.title!=null ) {

      stitle = frm.document.title;
  }

  if (stitle == null ) {
          window.setTimeout("iosModal.setPopTitle();", 10);
  } else {
          document.getElementById("popupTitle").innerHTML = stitle;
  }  
/*
      return;
      if (window.frames["popupFrame"].document.title == null) {
              window.setTimeout("iosModal.setPopTitle();", 10);
      } else {
              document.getElementById("popupTitle").innerHTML = window.frames["popupFrame"].document.title;
      }
*/    
}

// Tab key trap. iff popup is shown and key was [TAB], suppress it.
// @argument e - event - keyboard event that caused this function to be called.
iosModal.keyDownHandler = function (e) {
    if (iosModal.gPopupIsShown && e.keyCode == 9)  return false;
}

// For IE.  Go through predefined tags and disable tabbing into them.
iosModal.disableTabIndexes = function () {
	if (document.all) {
		var i = 0;
		for (var j = 0; j < iosModal.gTabbableTags.length; j++) {
			var tagElements = document.getElementsByTagName(iosModal.gTabbableTags[j]);
			for (var k = 0 ; k < tagElements.length; k++) {
				iosModal.gTabIndexes[i] = tagElements[k].tabIndex;
				tagElements[k].tabIndex="-1";
				i++;
			}
		}
	}
}

// For IE. Restore tab-indexes.
iosModal.restoreTabIndexes = function () {
	if (document.all) {
		var i = 0;
		for (var j = 0; j < iosModal.gTabbableTags.length; j++) {
			var tagElements = document.getElementsByTagName(iosModal.gTabbableTags[j]);
			for (var k = 0 ; k < tagElements.length; k++) {
				tagElements[k].tabIndex = iosModal.gTabIndexes[i];
				tagElements[k].tabEnabled = true;
				i++;
			}
		}
	}
}


/**
 * Hides all drop down form select boxes on the screen so they do not appear above the mask layer.
 * IE has a problem with wanted select form tags to always be the topmost z-index or layer
 *
 * Thanks for the code Scott!
 */
iosModal.hideSelectBoxes = function () {
  var x = document.getElementsByTagName("SELECT");

  for (i=0;x && i < x.length; i++) {
    x[i].style.visibility = "hidden";
  }
}

/**
 * Makes all drop down form select boxes on the screen visible so they do not 
 * reappear after the dialog is closed.
 * 
 * IE has a problem with wanting select form tags to always be the 
 * topmost z-index or layer.
 */
iosModal.displaySelectBoxes = function () {
  var x = document.getElementsByTagName("SELECT");

  for (i=0;x && i < x.length; i++){
    x[i].style.visibility = "visible";
  }
}