File: D:/HostingSpaces/MBoogaard/oosting-horseriding.com/wwwroot/CMSScripts/lightbox/lightbox.js
// -----------------------------------------------------------------------------------
//
// Lightbox v2.03.3
// by Lokesh Dhakar - http://www.huddletogether.com
// 5/21/06
//
// For more information on this script, visit:
// http://huddletogether.com/projects/lightbox2/
//
// Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
//
// Credit also due to those who have helped, inspired, and made their code available to the public.
// Including: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.com), Thomas Fuchs(mir.aculo.us), and others.
//
//
// -----------------------------------------------------------------------------------
/*
Table of Contents
-----------------
Configuration
Global Variables
Extending Built-in Objects
- Object.extend(Element)
- Array.prototype.removeDuplicates()
- Array.prototype.empty()
Lightbox Class Declaration
- initialize()
- updateImageList()
- start()
- changeImage()
- resizeImageContainer()
- showImage()
- updateDetails()
- updateNav()
- enableKeyboardNav()
- disableKeyboardNav()
- keyboardAction()
- preloadNeighborImages()
- end()
Miscellaneous Functions
- getPageScroll()
- getPageSize()
- getKey()
- listenKey()
- showSelectBoxes()
- hideSelectBoxes()
- showFlash()
- hideFlash()
- pause()
- initLightbox()
Function Calls
- addLoadEvent(initLightbox)
*/
// -----------------------------------------------------------------------------------
//
// Configuration
//
var fileLoadingImage = "images/loading.gif";
var fileBottomNavCloseImage = "images/closelabel.gif";
var overlayOpacity = 0.8; // controls transparency of shadow overlay
var animate = true; // toggles resizing animations
var resizeSpeed = 7; // controls the speed of the image resizing animations (1=slowest and 10=fastest)
var borderSize = 10; //if you adjust the padding in the CSS, you will need to update this variable
var windowWidth = 320;
var windowHeight = 200;
// -----------------------------------------------------------------------------------
//
// Global Variables
//
var imageArray = new Array;
var activeImage;
// Init global vars
function initGlobalVars() {
if (animate == true) {
overlayDuration = 0.2; // shadow fade in/out duration
if (resizeSpeed > 10) { resizeSpeed = 10; }
if (resizeSpeed < 1) { resizeSpeed = 1; }
resizeDuration = (11 - resizeSpeed) * 0.15;
} else {
overlayDuration = 0;
resizeDuration = 0;
}
var elem = document.getElementById('loadingLink');
if (elem) {
// elem.innerHtml = '<img src="' + fileLoadingImage + '">';
}
}
initGlobalVars();
// -----------------------------------------------------------------------------------
//
// Additional methods for Element added by SU, Couloir
// - further additions by Lokesh Dhakar (huddletogether.com)
//
Object.extend(Element, {
getWidth: function(element) {
element = $(element);
return element.offsetWidth;
},
setWidth: function(element, w) {
element = $(element);
element.style.width = w + "px";
},
setHeight: function(element, h) {
element = $(element);
element.style.height = h + "px";
},
setTop: function(element, t) {
element = $(element);
element.style.top = t + "px";
},
setLeft: function(element, l) {
element = $(element);
element.style.left = l + "px";
},
setSrc: function(element, src) {
element = $(element);
element.src = src;
},
setHref: function(element, href) {
element = $(element);
element.href = href;
},
setInnerHTML: function(element, content) {
element = $(element);
element.innerHTML = content;
}
});
// -----------------------------------------------------------------------------------
//
// Extending built-in Array object
// - array.removeDuplicates()
// - array.empty()
//
Array.prototype.removeDuplicates = function() {
for (i = 0; i < this.length; i++) {
for (j = this.length - 1; j > i; j--) {
if (this[i][0] == this[j][0]) {
this.splice(j, 1);
}
}
}
};
// -----------------------------------------------------------------------------------
Array.prototype.empty = function() {
for (i = 0; i <= this.length; i++) {
this.shift();
}
};
// -----------------------------------------------------------------------------------
//
// Lightbox Class Declaration
// - initialize()
// - start()
// - changeImage()
// - resizeImageContainer()
// - showImage()
// - updateDetails()
// - updateNav()
// - enableKeyboardNav()
// - disableKeyboardNav()
// - keyboardNavAction()
// - preloadNeighborImages()
// - end()
//
// Structuring of code inspired by Scott Upton (http://www.uptonic.com/)
//
var Lightbox = Class.create();
Lightbox.prototype = {
// 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();
// 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 = document.getElementsByTagName("body").item(0);
var objOverlay = document.createElement("div");
objOverlay.setAttribute('id', 'overlay');
objOverlay.style.display = 'none';
objOverlay.onclick = function() { myLightbox.end(); };
objBody.appendChild(objOverlay);
var objLightbox = document.createElement("div");
objLightbox.setAttribute('id', 'lightbox');
objLightbox.style.display = 'none';
objLightbox.onclick = function(e) { // close Lightbox is user clicks shadow overlay
if (!e) var e = window.event;
var clickObj = Event.element(e).id;
if (clickObj == 'lightbox') {
myLightbox.end();
}
};
objBody.appendChild(objLightbox);
var objOuterImageContainer = document.createElement("div");
objOuterImageContainer.setAttribute('id', 'outerImageContainer');
objLightbox.appendChild(objOuterImageContainer);
// 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.
if (animate) {
Element.setWidth('outerImageContainer', 250);
Element.setHeight('outerImageContainer', 250);
} else {
Element.setWidth('outerImageContainer', 1);
Element.setHeight('outerImageContainer', 1);
}
var objImageContainer = document.createElement("div");
objImageContainer.setAttribute('id', 'imageContainer');
objOuterImageContainer.appendChild(objImageContainer);
var objLightboxDiv = document.createElement("div");
objLightboxDiv.setAttribute('id', 'aspxoutput');
objImageContainer.appendChild(objLightboxDiv);
var objHoverNav = document.createElement("div");
objHoverNav.setAttribute('id', 'hoverNav');
objImageContainer.appendChild(objHoverNav);
var objPrevLink = document.createElement("a");
objPrevLink.setAttribute('id', 'prevLink');
objPrevLink.setAttribute('href', '#');
objHoverNav.appendChild(objPrevLink);
var objNextLink = document.createElement("a");
objNextLink.setAttribute('id', 'nextLink');
objNextLink.setAttribute('href', '#');
objHoverNav.appendChild(objNextLink);
var objLoading = document.createElement("div");
objLoading.setAttribute('id', 'loading');
objImageContainer.appendChild(objLoading);
var objLoadingLink = document.createElement("a");
objLoadingLink.setAttribute('id', 'loadingLink');
objLoadingLink.setAttribute('href', '#');
objLoadingLink.onclick = function() { myLightbox.end(); return false; };
objLoading.appendChild(objLoadingLink);
var objLoadingImage = document.createElement("img");
objLoadingImage.setAttribute('src', fileLoadingImage);
objLoadingLink.appendChild(objLoadingImage);
var objImageDataContainer = document.createElement("div");
objImageDataContainer.setAttribute('id', 'imageDataContainer');
objLightbox.appendChild(objImageDataContainer);
var objImageData = document.createElement("div");
objImageData.setAttribute('id', 'imageData');
objImageDataContainer.appendChild(objImageData);
var objImageDetails = document.createElement("div");
objImageDetails.setAttribute('id', 'imageDetails');
objImageData.appendChild(objImageDetails);
var objCaption = document.createElement("span");
objCaption.setAttribute('id', 'caption');
objImageDetails.appendChild(objCaption);
var objNumberDisplay = document.createElement("span");
objNumberDisplay.setAttribute('id', 'numberDisplay');
objImageDetails.appendChild(objNumberDisplay);
var objBottomNav = document.createElement("div");
objBottomNav.setAttribute('id', 'bottomNav');
objImageData.appendChild(objBottomNav);
var objBottomNavCloseLink = document.createElement("a");
objBottomNavCloseLink.setAttribute('id', 'bottomNavClose');
objBottomNavCloseLink.setAttribute('href', '#');
objBottomNavCloseLink.onclick = function() { myLightbox.end(); return false; };
objBottomNav.appendChild(objBottomNavCloseLink);
var objBottomNavCloseImage = document.createElement("img");
objBottomNavCloseImage.setAttribute('src', fileBottomNavCloseImage);
objBottomNavCloseLink.appendChild(objBottomNavCloseImage);
},
//
// 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() {
if (!document.getElementsByTagName) { return; }
var anchors = document.getElementsByTagName('a');
var areas = document.getElementsByTagName('area');
// loop through all anchor tags
for (var i = 0; i < anchors.length; i++) {
var anchor = anchors[i];
var relAttribute = String(anchor.getAttribute('rel'));
// use the string.match() method to catch 'lightbox' references in the rel attribute
if (anchor.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox'))) {
anchor.onclick = function() { myLightbox.start(this); return false; };
}
}
// loop through all area tags
// todo: combine anchor & area tag loops
for (var i = 0; i < areas.length; i++) {
var area = areas[i];
var relAttribute = String(area.getAttribute('rel'));
// use the string.match() method to catch 'lightbox' references in the rel attribute
if (area.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox'))) {
area.onclick = function() { myLightbox.start(this); return false; };
}
}
},
//
// start()
// Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
//
start: function(imageLink) {
hideSelectBoxes();
hideFlash();
// stretch overlay to fill page and fade in
var arrayPageSize = getPageSize();
Element.setWidth('overlay', arrayPageSize[0]);
Element.setHeight('overlay', arrayPageSize[1]);
new Effect.Appear('overlay', { duration: overlayDuration, from: 0.0, to: overlayOpacity });
imageArray = [];
imageNum = 0;
if (!document.getElementsByTagName) { return; }
var anchors = document.getElementsByTagName(imageLink.tagName);
// if image is NOT part of a set..
if ((imageLink.getAttribute('rel') == 'lightbox')) {
// add single image to imageArray
imageArray.push(new Array(imageLink.getAttribute('href'), imageLink.getAttribute('title'), imageLink.getAttribute('rev'), null));
} else {
// if image is part of a set..
// loop through anchors, find other images in set, and add them to imageArray
for (var i = 0; i < anchors.length; i++) {
var anchor = anchors[i];
if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == imageLink.getAttribute('rel'))) {
imageArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title'), anchor.getAttribute('rev'), anchor.getAttribute('rel').replace("lightbox", "").replace("[", "").replace("]", "")));
}
}
imageArray.removeDuplicates();
while (imageArray[imageNum][0] != imageLink.getAttribute('href')) { imageNum++; }
}
// calculate top and left offset for the lightbox
var arrayPageScroll = getPageScroll();
var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 10);
var lightboxLeft = arrayPageScroll[0];
Element.setTop('lightbox', lightboxTop);
Element.setLeft('lightbox', lightboxLeft);
Element.show('lightbox');
this.changeImage(imageNum);
},
//
// changeImage()
// Hide most elements and preload image in preparation for resizing image container.
//
changeImage: function(imageNum) {
activeImage = imageNum; // update global var
if (animate) { Element.show('loading'); }
Element.hide('hoverNav');
Element.hide('prevLink');
Element.hide('nextLink');
Element.hide('imageDataContainer');
Element.hide('numberDisplay');
getLightboxContent(imageArray[activeImage][2], imageArray[activeImage][3]);
},
//
// resizeImageContainer()
//
resizeImageContainer: function(imgWidth, imgHeight) {
// get curren width and height
this.widthCurrent = Element.getWidth('outerImageContainer');
this.heightCurrent = Element.getHeight('outerImageContainer');
// get new width and height
var widthNew = (imgWidth + (borderSize * 2));
var heightNew = (imgHeight + (borderSize * 2));
// scalars based on change from old to new
this.xScale = (widthNew / this.widthCurrent) * 100;
this.yScale = (heightNew / this.heightCurrent) * 100;
// calculate size difference between new and old image, and resize if necessary
wDiff = this.widthCurrent - widthNew;
hDiff = this.heightCurrent - heightNew;
if (!(hDiff == 0)) { new Effect.Scale('outerImageContainer', this.yScale, { scaleX: false, duration: resizeDuration, queue: 'front', scaleContent: false }); }
if (!(wDiff == 0)) { new Effect.Scale('outerImageContainer', this.xScale, { scaleY: false, delay: resizeDuration, duration: resizeDuration, scaleContent: false }); }
// if new and old image are same size and no scaling transition is necessary,
// do a quick pause to prevent image flicker.
if ((hDiff == 0) && (wDiff == 0)) {
if (navigator.appVersion.indexOf("MSIE") != -1) { pause(250); } else { pause(100); }
}
// Ensure correct space on the top of the image
Element.setStyle('aspxoutput', {paddingTop: borderSize + 'px'});
Element.setHeight('prevLink', heightNew);
Element.setHeight('nextLink', heightNew);
Element.setWidth('imageDataContainer', widthNew);
this.showImage();
},
//
// showImage()
// Display image and begin preloading neighbors.
//
showImage: function() {
new Effect.Appear('aspxoutput', { duration: resizeDuration, queue: 'end', afterFinish: function() { myLightbox.updateDetails(); } });
Element.hide('loading');
this.preloadNeighborImages();
},
//
// updateDetails()
// Display caption, image number, and bottom nav.
//
updateDetails: function() {
// if caption is not null
if (imageArray[activeImage][1]) {
Element.show('caption');
Element.setInnerHTML('caption', imageArray[activeImage][1]);
}
else {
Element.show('caption');
Element.setInnerHTML('caption', ' ');
}
Element.show('aspxoutput');
// if image is part of set display 'Image x of x'
if (imageArray.length > 1) {
Element.show('numberDisplay');
Element.setInnerHTML('numberDisplay', "Image " + eval(activeImage + 1) + " of " + imageArray.length);
}
new Effect.Parallel(
[new Effect.SlideDown('imageDataContainer', { sync: true, duration: resizeDuration, from: 0.0, to: 1.0 }),
new Effect.Appear('imageDataContainer', { sync: true, duration: resizeDuration })],
{ duration: resizeDuration, afterFinish: function() {
// update overlay size and update nav
var arrayPageSize = getPageSize();
Element.setHeight('overlay', arrayPageSize[1]);
myLightbox.updateNav();
}
}
);
},
//
// updateNav()
// Display appropriate previous and next hover navigation.
//
updateNav: function() {
Element.show('hoverNav');
// if not first image in set, display prev image button
if (activeImage != 0) {
Element.show('prevLink');
document.getElementById('prevLink').onclick = function() {
myLightbox.changeImage(activeImage - 1); return false;
};
}
// if not last image in set, display next image button
if (activeImage != (imageArray.length - 1)) {
Element.show('nextLink');
document.getElementById('nextLink').onclick = function() {
myLightbox.changeImage(activeImage + 1); return false;
};
}
this.enableKeyboardNav();
},
//
// enableKeyboardNav()
//
enableKeyboardNav: function() {
document.onkeydown = this.keyboardAction;
},
//
// disableKeyboardNav()
//
disableKeyboardNav: function() {
document.onkeydown = '';
},
//
// keyboardAction()
//
keyboardAction: function(e) {
if (e == null) { // ie
keycode = event.keyCode;
escapeKey = 27;
} else { // mozilla
keycode = e.keyCode;
escapeKey = e.DOM_VK_ESCAPE;
}
key = String.fromCharCode(keycode).toLowerCase();
if ((key == 'x') || (key == 'o') || (key == 'c') || (keycode == escapeKey)) { // close lightbox
myLightbox.end();
} else if ((key == 'p') || (keycode == 37)) { // display previous image
if (activeImage != 0) {
myLightbox.disableKeyboardNav();
myLightbox.changeImage(activeImage - 1);
}
} else if ((key == 'n') || (keycode == 39)) { // display next image
if (activeImage != (imageArray.length - 1)) {
myLightbox.disableKeyboardNav();
myLightbox.changeImage(activeImage + 1);
}
}
},
//
// preloadNeighborImages()
// Preload previous and next images.
//
preloadNeighborImages: function() {
if ((imageArray.length - 1) > activeImage) {
preloadNextImage = new Image();
preloadNextImage.src = imageArray[activeImage + 1][0];
}
if (activeImage > 0) {
preloadPrevImage = new Image();
preloadPrevImage.src = imageArray[activeImage - 1][0];
}
},
//
// end()
//
end: function() {
this.disableKeyboardNav();
Element.hide('lightbox');
new Effect.Fade('overlay', { duration: overlayDuration });
showSelectBoxes();
showFlash();
}
};
// -----------------------------------------------------------------------------------
//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.com
//
function getPageScroll() {
var xScroll, yScroll;
if (self.pageYOffset) {
yScroll = self.pageYOffset;
xScroll = self.pageXOffset;
} else if (document.documentElement && document.documentElement.scrollTop) { // Explorer 6 Strict
yScroll = document.documentElement.scrollTop;
xScroll = document.documentElement.scrollLeft;
} else if (document.body) {// all other Explorers
yScroll = document.body.scrollTop;
xScroll = document.body.scrollLeft;
}
arrayPageScroll = new Array(xScroll, yScroll);
return arrayPageScroll;
}
// -----------------------------------------------------------------------------------
//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.com
// Edit for Firefox by pHaez
//
function getPageSize() {
var xScroll, yScroll;
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;
}
var windowWidth, windowHeight;
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;
}
arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight);
return arrayPageSize;
}
// -----------------------------------------------------------------------------------
//
// getKey(key)
// Gets keycode. If 'x' is pressed then it hides the lightbox.
//
function getKey(e) {
if (e == null) { // ie
keycode = event.keyCode;
} else { // mozilla
keycode = e.which;
}
key = String.fromCharCode(keycode).toLowerCase();
if (key == 'x') {
}
}
// -----------------------------------------------------------------------------------
//
// listenKey()
//
function listenKey() { document.onkeypress = getKey; }
// ---------------------------------------------------
function showSelectBoxes() {
var selects = document.getElementsByTagName("select");
for (i = 0; i != selects.length; i++) {
selects[i].style.visibility = "visible";
}
}
// ---------------------------------------------------
function hideSelectBoxes() {
var selects = document.getElementsByTagName("select");
for (i = 0; i != selects.length; i++) {
selects[i].style.visibility = "hidden";
}
}
// ---------------------------------------------------
function showFlash() {
var flashObjects = document.getElementsByTagName("object");
for (i = 0; i < flashObjects.length; i++) {
flashObjects[i].style.visibility = "visible";
}
var flashEmbeds = document.getElementsByTagName("embed");
for (i = 0; i < flashEmbeds.length; i++) {
flashEmbeds[i].style.visibility = "visible";
}
}
// ---------------------------------------------------
function hideFlash() {
var flashObjects = document.getElementsByTagName("object");
for (i = 0; i < flashObjects.length; i++) {
flashObjects[i].style.visibility = "hidden";
}
var flashEmbeds = document.getElementsByTagName("embed");
for (i = 0; i < flashEmbeds.length; i++) {
flashEmbeds[i].style.visibility = "hidden";
}
}
// ---------------------------------------------------
//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Help from Ran Bar-On [ran2103@gmail.com]
//
function pause(ms) {
var date = new Date();
curDate = null;
do { var curDate = new Date(); }
while (curDate - date < ms);
}
function initLightbox() { myLightbox = new Lightbox(); }
Event.observe(window, 'load', initLightbox, false);