{{velocity}}
#panelheader($services.localization.render('xe.panels.navigation'))
## Escape special characters in macro parameter values.
#set ($openToDoc = $doc.documentReference.toString().replaceAll('([~"])', '~$1'))
{{documentTree showSpaces="false" showWikis="true" showTranslations="false" showAttachments="true"
showChildDocuments="true" compact="true" openTo="document:$openToDoc" /}}
#panelfooter()
{{/velocity}}

{{velocity}}
#set($myArray=$doc.AttachmentList)
#set($myArray=$sorttool.sort($myArray, 'filename'))
#foreach ($item in $myArray)#if($item.isImage()){{lightbox image=$item.filename title="Hello" width="20%" group="d1" height="20%"/}}#end#end
{{/velocity}}

//----------------------------------------------------------------------------
//
// Lightbox v2.04
// by Lokesh Dhakar - http://www.lokeshdhakar.com
//
// Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
//  - Free for use in both personal and commercial projects
// - Attribution requires leaving author name, author link, and the license info intact.
//
// Cleaned up using jslint.
//----------------------------------------------------------------------------------
/*global LightboxOptions, Lightbox, Builder, Class, Prototype, $, $$, $w , Effect*/
LightboxOptions = Object.extend({
fileLoadingImage:        '$doc.getAttachmentURL("loading.gif")',
fileBottomNavCloseImage: '$doc.getAttachmentURL("closelabel.gif")',
overlayOpacity: 0.8,   // controls transparency of shadow overlay
animate: true,         // toggles resizing animations
resizeSpeed: 10,        // controls the speed of the image resizing animations (1=slowest and 10=fastest)
borderSize: 10,         //if you adjust the padding in the CSS, you will need to update this variable
// When grouping images this is used to write: Image # of #.
// Change it for non-english localization
labelImage: "Image",
labelOf: "of"
}, window.LightboxOptions || {});
// -----------------------------------------------------------------------------------
var Lightbox = Class.create();
Lightbox.prototype = {
imageArray: [],
activeImage: undefined,
// initialize()
// Constructor runs on completion of the DOM loading. Calls updateImageList and then
// the function inserts html at the bottom of the page which is used to display the shadow
// overlay and the image container.
//
initialize: function () {
this.updateImageList();
this.keyboardAction = this.keyboardAction.bindAsEventListener(this);
if (LightboxOptions.resizeSpeed > 10) {
LightboxOptions.resizeSpeed = 10;
}
if (LightboxOptions.resizeSpeed < 1)  {
LightboxOptions.resizeSpeed = 1;
}
this.resizeDuration = LightboxOptions.animate ? ((11 - LightboxOptions.resizeSpeed) * 0.15) : 0;
this.overlayDuration = LightboxOptions.animate ? 0.2 : 0;  // shadow fade in/out duration
// When Lightbox starts it will resize itself from 250 by 250 to the current image dimension.
// If animations are turned off, it will be hidden as to prevent a flicker of a
// white 250 by 250 box.
var size = (LightboxOptions.animate ? 250 : 1) + 'px';
// Code inserts html at the bottom of the page that looks similar to this:
//
//  <div id="overlay"></div>
//  <div id="lightbox">
//      <div id="outerImageContainer">
//          <div id="imageContainer">
//              <img id="lightboxImage">
//              <div style="" id="hoverNav">
//                  <a href="#" id="prevLink"></a>
//                  <a href="#" id="nextLink"></a>
//              </div>
//              <div id="loading">
//                  <a href="#" id="loadingLink">
//                      <img src="images/loading.gif">
//                  </a>
//              </div>
//          </div>
//      </div>
//      <div id="imageDataContainer">
//          <div id="imageData">
//              <div id="imageDetails">
//                  <span id="caption"></span>
//                  <span id="numberDisplay"></span>
//              </div>
//              <div id="bottomNav">
//                  <a href="#" id="bottomNavClose">
//                      <img src="images/close.gif">
//                  </a>
//              </div>
//          </div>
//      </div>
//  </div>
var objBody = $$('body')[0];
objBody.appendChild(Builder.node('div', {id: 'overlay'}));
objBody.appendChild(Builder.node('div', {id: 'lightbox'}, [
  Builder.node('div', {id: 'outerImageContainer'},
      Builder.node('div', {id: 'imageContainer'}, [
          Builder.node('img', {id: 'lightboxImage'}),
          Builder.node('div', {id: 'hoverNav'}, [
              Builder.node('a', {id: 'prevLink', href: '#' }),
              Builder.node('a', {id: 'nextLink', href: '#' })
          ]),
          Builder.node('div', {id: 'loading'},
              Builder.node('a', {id: 'loadingLink', href: '#' },
                  Builder.node('img', {src: LightboxOptions.fileLoadingImage})
              )
          )
      ])
  ),
  Builder.node('div', {id: 'imageDataContainer'},
      Builder.node('div', {id: 'imageData'}, [
          Builder.node('div', {id: 'imageDetails'}, [
              Builder.node('span', {id: 'caption'}),
              Builder.node('span', {id: 'numberDisplay'})
          ]),
          Builder.node('div', {id: 'bottomNav'},
              Builder.node('a', {id: 'bottomNavClose', href: '#' },
                  Builder.node('img', { src: LightboxOptions.fileBottomNavCloseImage })
              )
          )
      ])
  )
]));
$('overlay').hide().observe('click', (function () {
this.end();
}).bind(this));
$('lightbox').hide().observe('click', (function (event) {
if (event.element().id == 'lightbox') {
this.end();
}
}).bind(this));
$('outerImageContainer').setStyle({ width: size, height: size });
$('prevLink').observe('click', (function (event) {
event.stop();
this.changeImage(this.activeImage - 1);
}).bindAsEventListener(this));
$('nextLink').observe('click', (function (event) {
event.stop();
this.changeImage(this.activeImage + 1);
}).bindAsEventListener(this));
$('loadingLink').observe('click', (function (event) {
event.stop();
this.end();
}).bind(this));
$('bottomNavClose').observe('click', (function (event) {
event.stop();
this.end();
}).bind(this));
var th = this;
(function () {
  var ids =
      'overlay lightbox outerImageContainer imageContainer lightboxImage hoverNav prevLink nextLink loading loadingLink ' +
      'imageDataContainer imageData imageDetails caption numberDisplay bottomNav bottomNavClose';
  $w(ids).each(function (id) {
th[id] = $(id);
});
}).defer();
},
//
// updateImageList()
// Loops through anchor tags looking for 'lightbox' references and applies onclick
// events to appropriate links. You can rerun after dynamically adding images w/ajax.
//
updateImageList: function () {
this.updateImageList = Prototype.emptyFunction;
document.observe('click', (function (event) {
  var target = event.findElement('a[rel^=lightbox]') || event.findElement('area[rel^=lightbox]');
  if (target) {
      event.stop();
      this.start(target);
  }
}).bind(this));
},
//
//  start()
//  Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
//
start: function (imageLink) {
$$('select', 'object', 'embed').each(function (node) {
node.style.visibility = 'hidden';
});
// stretch overlay to fill page and fade in
var arrayPageSize = this.getPageSize();
$('overlay').setStyle({ width: arrayPageSize[0] + 'px', height: arrayPageSize[1] + 'px' });
var effect = new Effect.Appear(this.overlay, { duration: this.overlayDuration, from: 0.0, to: LightboxOptions.overlayOpacity });
this.imageArray = [];
var imageNum = 0;
if ((imageLink.rel == 'lightbox')) {
  // if image is NOT part of a set, add single image to imageArray
  this.imageArray.push([imageLink.href, imageLink.title]);
} else {
  // if image is part of a set..
  this.imageArray =
      $$(imageLink.tagName + '[href][rel="' + imageLink.rel + '"]').
      collect(function (anchor) {
return [anchor.href, anchor.title];
}).
      uniq();
  while (this.imageArray[imageNum][0] != imageLink.href) {
imageNum++;
}
}
// calculate top and left offset for the lightbox
var arrayPageScroll = document.viewport.getScrollOffsets();
var lightboxTop = arrayPageScroll[1] + (document.viewport.getHeight() / 10);
var lightboxLeft = arrayPageScroll[0];
this.lightbox.setStyle({ top: lightboxTop + 'px', left: lightboxLeft + 'px' }).show();
this.changeImage(imageNum);
},
//
//  changeImage()
//  Hide most elements and preload image in preparation for resizing image container.
//
changeImage: function (imageNum) {
this.activeImage = imageNum; // update global var
// hide elements during transition
if (LightboxOptions.animate) {
this.loading.show();
}
this.lightboxImage.hide();
this.hoverNav.hide();
this.prevLink.hide();
this.nextLink.hide();
// HACK: Opera9 does not currently support scriptaculous opacity and appear fx
this.imageDataContainer.setStyle({opacity: 0.0001});
this.numberDisplay.hide();
var imgPreloader = new Image();
// once image is preloaded, resize image container
imgPreloader.onload = (function () {
  var maxheight = 640;
  if(imgPreloader.height > maxheight)
    {
    var scale = imgPreloader.height/maxheight
    imgPreloader.height = maxheight;
    imgPreloader.width = imgPreloader.width/scale;
     }
       
  this.lightboxImage.src = this.imageArray[this.activeImage][0];
  this.resizeImageContainer(imgPreloader.width, imgPreloader.height);
}).bind(this);
imgPreloader.src = this.imageArray[this.activeImage][0];
},
//
//  resizeImageContainer()
//
resizeImageContainer: function (imgWidth, imgHeight) {
// get current width and height
var widthCurrent  = this.outerImageContainer.getWidth();
var heightCurrent = this.outerImageContainer.getHeight();
// get new width and height
var widthNew  = (imgWidth  + LightboxOptions.borderSize * 2);
var heightNew = (imgHeight + LightboxOptions.borderSize * 2);
// scalars based on change from old to new
var xScale = (widthNew  / widthCurrent)  * 100;
var yScale = (heightNew / heightCurrent) * 100;
// calculate size difference between new and old image, and resize if necessary
var wDiff = widthCurrent - widthNew;
var hDiff = heightCurrent - heightNew;
if (hDiff != 0) {
var scaleXEffect = new Effect.Scale(this.outerImageContainer, yScale, {scaleX: false, duration: this.resizeDuration, queue: 'front'});
}
if (wDiff != 0) {
var scaleYEffect = new Effect.Scale(this.outerImageContainer, xScale, {scaleY: false, duration: this.resizeDuration, delay: this.resizeDuration});
}
// if new and old image are same size and no scaling transition is necessary,
// do a quick pause to prevent image flicker.
var timeout = 0;
if ((hDiff == 0) && (wDiff == 0)) {
  timeout = 100;
  if (Prototype.Browser.IE) {
timeout = 250;
}
}
(function () {
  this.prevLink.setStyle({ height: imgHeight + 'px' });
  this.nextLink.setStyle({ height: imgHeight + 'px' });
  this.imageDataContainer.setStyle({ width: widthNew + 'px' });
  this.showImage();
}).bind(this).delay(timeout / 1000);
},
//
//  showImage()
//  Display image and begin preloading neighbors.
//
showImage: function () {
this.loading.hide();
var effectAppear = new Effect.Appear(this.lightboxImage, {
  duration: this.resizeDuration,
  queue: 'end',
  afterFinish: (function () {
this.updateDetails();
}).bind(this)
});
this.preloadNeighborImages();
},
//
//  updateDetails()
//  Display caption, image number, and bottom nav.
//
updateDetails: function () {
// if caption is not null
if (this.imageArray[this.activeImage][1] != "") {
  this.caption.update(this.imageArray[this.activeImage][1]).show();
}
// if image is part of set display 'Image x of x'
if (this.imageArray.length > 1) {
  this.numberDisplay.update(LightboxOptions.labelImage + ' ' + (this.activeImage + 1) + ' ' + LightboxOptions.labelOf + '  ' + this.imageArray.length).show();
}
var effectParallel = new Effect.Parallel(
  [
new Effect.SlideDown(this.imageDataContainer, { sync: true, duration: this.resizeDuration, from: 0.0, to: 1.0 }),
      new Effect.Appear(this.imageDataContainer, { sync: true, duration: this.resizeDuration })
  ],
  {
      duration: this.resizeDuration,
      afterFinish: (function () {
     // update overlay size and update nav
     var arrayPageSize = this.getPageSize();
     this.overlay.setStyle({ height: arrayPageSize[1] + 'px' });
     this.updateNav();
      }).bind(this)
  }
);
},
//
//  updateNav()
//  Display appropriate previous and next hover navigation.
//
updateNav: function () {
this.hoverNav.show();      
// if not first image in set, display prev image button
if (this.activeImage > 0) {
this.prevLink.show();
}
// if not last image in set, display next image button
if (this.activeImage < (this.imageArray.length - 1)) {
this.nextLink.show();
}
this.enableKeyboardNav();
},
//
//  enableKeyboardNav()
//
enableKeyboardNav: function () {
document.observe('keydown', this.keyboardAction);
},
//
//  disableKeyboardNav()
//
disableKeyboardNav: function () {
document.stopObserving('keydown', this.keyboardAction);
},
//
//  keyboardAction()
//
keyboardAction: function (event) {
var keycode = event.keyCode;
var escapeKey;
if (event.DOM_VK_ESCAPE) {  // mozilla
  escapeKey = event.DOM_VK_ESCAPE;
} else { // ie
  escapeKey = 27;
}
var key = String.fromCharCode(keycode).toLowerCase();
if (key.match(/x|o|c/) || (keycode == escapeKey)) { // close lightbox
  this.end();
} else if ((key == 'p') || (keycode == 37)) { // display previous image
  if (this.activeImage != 0){
      this.disableKeyboardNav();
      this.changeImage(this.activeImage - 1);
  }
} else if ((key == 'n') || (keycode == 39)) { // display next image
  if (this.activeImage != (this.imageArray.length - 1)) {
      this.disableKeyboardNav();
      this.changeImage(this.activeImage + 1);
  }
}
},
//
//  preloadNeighborImages()
//  Preload previous and next images.
//
preloadNeighborImages: function () {
var preloadNextImage, preloadPrevImage;
if (this.imageArray.length > this.activeImage + 1) {
  preloadNextImage = new Image();
  preloadNextImage.src = this.imageArray[this.activeImage + 1][0];
}
if (this.activeImage > 0) {
  preloadPrevImage = new Image();
  preloadPrevImage.src = this.imageArray[this.activeImage - 1][0];
}
},
//
//  end()
//
end: function () {
this.disableKeyboardNav();
this.lightbox.hide();
var effectFade = new Effect.Fade(this.overlay, { duration: this.overlayDuration });
$$('select', 'object', 'embed').each(function (node) {
node.style.visibility = 'visible';
});
},
//
//  getPageSize()
//
getPageSize: function () {
var xScroll, yScroll, pageHeight, pageWidth, windowWidth, windowHeight;
if (window.innerHeight && window.scrollMaxY) { 
xScroll = window.innerWidth + window.scrollMaxX;
yScroll = window.innerHeight + window.scrollMaxY;
} else if (document.body.scrollHeight > document.body.offsetHeight) { // all but Explorer Mac
xScroll = document.body.scrollWidth;
yScroll = document.body.scrollHeight;
} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
xScroll = document.body.offsetWidth;
yScroll = document.body.offsetHeight;
}
if (self.innerHeight) { // all except Explorer
if (document.documentElement.clientWidth) {
windowWidth = document.documentElement.clientWidth;
} else {
windowWidth = self.innerWidth;
}
windowHeight = self.innerHeight;
} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
windowWidth = document.documentElement.clientWidth;
windowHeight = document.documentElement.clientHeight;
} else if (document.body) { // other Explorers
windowWidth = document.body.clientWidth;
windowHeight = document.body.clientHeight;
} 
// for small pages with total height less then height of the viewport
if (yScroll < windowHeight) {
pageHeight = windowHeight;
} else {
pageHeight = yScroll;
}
// for small pages with total width less then width of the viewport
if (xScroll < windowWidth) { 
pageWidth = xScroll; 
} else {
pageWidth = windowWidth;
}
return [pageWidth, pageHeight];
}
};
document.observe('dom:loaded', function () {
var lightbox = new Lightbox();
});