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| | <html> | | <html> |
| - | <head>
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| | | | |
| - | <script type="text/javascript" >/*
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| - | Lightbox JS: Fullsize Image Overlays
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| - | by Lokesh Dhakar - http://www.huddletogether.com
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| - |
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| - | For more information on this script, visit:
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| - | http://huddletogether.com/projects/lightbox/
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| - |
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| - | Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
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| - | (basically, do anything you want, just leave my name and link)
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| - |
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| - | Table of Contents
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| - | -----------------
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| - | Configuration
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| - |
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| - | Functions
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| - | - getPageScroll()
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| - | - getPageSize()
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| - | - pause()
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| - | - getKey()
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| - | - listenKey()
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| - | - showLightbox()
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| - | - hideLightbox()
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| - | - initLightbox()
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| - | - addLoadEvent()
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| - |
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| - | Function Calls
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| - | - addLoadEvent(initLightbox)
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| - |
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| - | */
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| - |
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| - |
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| - |
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| - | //
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| - | // Configuration
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| - | //
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| - |
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| - | // If you would like to use a custom loading image or close button reference them in the next two lines.
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| - | var loadingImage = 'loading.gif';
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| - | var closeButton = 'close.gif';
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| - |
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| - |
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| - |
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| - |
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| - |
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| - | //
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| - | // getPageScroll()
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| - | // Returns array with x,y page scroll values.
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| - | // Core code from - quirksmode.org
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| - | //
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| - | function getPageScroll(){
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| - |
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| - | var yScroll;
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| - |
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| - | if (self.pageYOffset) {
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| - | yScroll = self.pageYOffset;
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| - | } else if (document.documentElement && document.documentElement.scrollTop){ // Explorer 6 Strict
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| - | yScroll = document.documentElement.scrollTop;
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| - | } else if (document.body) {// all other Explorers
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| - | yScroll = document.body.scrollTop;
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| - | }
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| - |
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| - | arrayPageScroll = new Array('',yScroll)
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| - | return arrayPageScroll;
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| - | }
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| - |
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| - |
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| - |
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| - | //
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| - | // getPageSize()
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| - | // Returns array with page width, height and window width, height
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| - | // Core code from - quirksmode.org
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| - | // Edit for Firefox by pHaez
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| - | //
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| - | function getPageSize(){
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| - |
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| - | var xScroll, yScroll;
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| - |
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| - | if (window.innerHeight && window.scrollMaxY) {
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| - | xScroll = document.body.scrollWidth;
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| - | yScroll = window.innerHeight + window.scrollMaxY;
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| - | } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
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| - | xScroll = document.body.scrollWidth;
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| - | yScroll = document.body.scrollHeight;
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| - | } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
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| - | xScroll = document.body.offsetWidth;
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| - | yScroll = document.body.offsetHeight;
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| - | }
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| - |
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| - | var windowWidth, windowHeight;
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| - | if (self.innerHeight) { // all except Explorer
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| - | windowWidth = self.innerWidth;
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| - | windowHeight = self.innerHeight;
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| - | } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
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| - | windowWidth = document.documentElement.clientWidth;
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| - | windowHeight = document.documentElement.clientHeight;
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| - | } else if (document.body) { // other Explorers
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| - | windowWidth = document.body.clientWidth;
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| - | windowHeight = document.body.clientHeight;
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| - | }
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| - |
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| - | // for small pages with total height less then height of the viewport
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| - | if(yScroll < windowHeight){
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| - | pageHeight = windowHeight;
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| - | } else {
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| - | pageHeight = yScroll;
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| - | }
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| - |
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| - | // for small pages with total width less then width of the viewport
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| - | if(xScroll < windowWidth){
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| - | pageWidth = windowWidth;
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| - | } else {
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| - | pageWidth = xScroll;
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| - | }
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| - |
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| - |
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| - | arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)
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| - | return arrayPageSize;
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| - | }
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| - |
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| - |
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| - | //
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| - | // pause(numberMillis)
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| - | // Pauses code execution for specified time. Uses busy code, not good.
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| - | // Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602
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| - | //
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| - | function pause(numberMillis) {
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| - | var now = new Date();
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| - | var exitTime = now.getTime() + numberMillis;
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| - | while (true) {
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| - | now = new Date();
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| - | if (now.getTime() > exitTime)
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| - | return;
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| - | }
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| - | }
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| - |
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| - | //
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| - | // getKey(key)
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| - | // Gets keycode. If 'x' is pressed then it hides the lightbox.
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| - | //
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| - |
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| - | function getKey(e){
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| - | if (e == null) { // ie
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| - | keycode = event.keyCode;
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| - | } else { // mozilla
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| - | keycode = e.which;
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| - | }
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| - | key = String.fromCharCode(keycode).toLowerCase();
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| - |
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| - | if(key == 'x'){ hideLightbox(); }
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| - | }
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| - |
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| - |
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| - | //
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| - | // listenKey()
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| - | //
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| - | function listenKey () { document.onkeypress = getKey; }
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| - |
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| - |
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| - | //
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| - | // showLightbox()
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| - | // Preloads images. Pleaces new image in lightbox then centers and displays.
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| - | //
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| - | function showLightbox(objLink)
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| - | {
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| - | // prep objects
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| - | var objOverlay = document.getElementById('overlay');
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| - | var objLightbox = document.getElementById('lightbox');
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| - | var objCaption = document.getElementById('lightboxCaption');
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| - | var objImage = document.getElementById('lightboxImage');
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| - | var objLoadingImage = document.getElementById('loadingImage');
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| - | var objLightboxDetails = document.getElementById('lightboxDetails');
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| - |
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| - |
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| - | var arrayPageSize = getPageSize();
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| - | var arrayPageScroll = getPageScroll();
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| - |
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| - | // center loadingImage if it exists
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| - | if (objLoadingImage) {
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| - | objLoadingImage.style.top = (arrayPageScroll[1] + ((arrayPageSize[3] - 35 - objLoadingImage.height) / 2) + 'px');
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| - | objLoadingImage.style.left = (((arrayPageSize[0] - 20 - objLoadingImage.width) / 2) + 'px');
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| - | objLoadingImage.style.display = 'block';
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| - | }
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| - |
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| - | // set height of Overlay to take up whole page and show
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| - | objOverlay.style.height = (arrayPageSize[1] + 'px');
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| - | objOverlay.style.display = 'block';
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| - |
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| - | // preload image
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| - | imgPreload = new Image();
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| - |
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| - | imgPreload.onload=function(){
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| - | objImage.src = objLink.href;
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| - |
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| - | // center lightbox and make sure that the top and left values are not negative
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| - | // and the image placed outside the viewport
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| - | var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - imgPreload.height) / 2);
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| - | var lightboxLeft = ((arrayPageSize[0] - 20 - imgPreload.width) / 2);
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| - |
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| - | objLightbox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px";
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| - | objLightbox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px";
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| - |
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| - |
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| - | objLightboxDetails.style.width = imgPreload.width + 'px';
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| - |
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| - | if(objLink.getAttribute('title')){
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| - | objCaption.style.display = 'block';
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| - | //objCaption.style.width = imgPreload.width + 'px';
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| - | objCaption.innerHTML = objLink.getAttribute('title');
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| - | } else {
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| - | objCaption.style.display = 'none';
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| - | }
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| - |
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| - | // A small pause between the image loading and displaying is required with IE,
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| - | // this prevents the previous image displaying for a short burst causing flicker.
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| - | if (navigator.appVersion.indexOf("MSIE")!=-1){
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| - | pause(250);
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| - | }
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| - |
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| - | if (objLoadingImage) { objLoadingImage.style.display = 'none'; }
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| - |
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| - | // Hide select boxes as they will 'peek' through the image in IE
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| - | selects = document.getElementsByTagName("select");
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| - | for (i = 0; i != selects.length; i++) {
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| - | selects[i].style.visibility = "hidden";
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| - | }
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| - |
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| - |
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| - | objLightbox.style.display = 'block';
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| - |
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| - | // After image is loaded, update the overlay height as the new image might have
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| - | // increased the overall page height.
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| - | arrayPageSize = getPageSize();
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| - | objOverlay.style.height = (arrayPageSize[1] + 'px');
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| - |
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| - | // Check for 'x' keypress
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| - | listenKey();
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| - |
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| - | return false;
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| - | }
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| - |
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| - | imgPreload.src = objLink.href;
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| - |
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| - | }
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| - |
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| - |
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| - |
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| - |
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| - |
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| - | //
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| - | // hideLightbox()
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| - | //
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| - | function hideLightbox()
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| - | {
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| - | // get objects
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| - | objOverlay = document.getElementById('overlay');
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| - | objLightbox = document.getElementById('lightbox');
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| - |
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| - | // hide lightbox and overlay
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| - | objOverlay.style.display = 'none';
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| - | objLightbox.style.display = 'none';
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| - |
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| - | // make select boxes visible
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| - | selects = document.getElementsByTagName("select");
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| - | for (i = 0; i != selects.length; i++) {
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| - | selects[i].style.visibility = "visible";
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| - | }
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| - |
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| - | // disable keypress listener
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| - | document.onkeypress = '';
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| - | }
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| - |
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| - |
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| - |
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| - |
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| - | //
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| - | // initLightbox()
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| - | // Function runs on window load, going through link tags looking for rel="lightbox".
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| - | // These links receive onclick events that enable the lightbox display for their targets.
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| - | // The function also inserts html markup at the top of the page which will be used as a
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| - | // container for the overlay pattern and the inline image.
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| - | //
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| - | function initLightbox()
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| - | {
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| - |
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| - | if (!document.getElementsByTagName){ return; }
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| - | var anchors = document.getElementsByTagName("a");
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| - |
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| - | // loop through all anchor tags
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| - | for (var i=0; i<anchors.length; i++){
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| - | var anchor = anchors[i];
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| - |
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| - | if (anchor.getAttribute("href") && (anchor.getAttribute("rel") == "lightbox")){
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| - | anchor.onclick = function () {showLightbox(this); return false;}
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| - | }
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| - | }
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| - |
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| - | // the rest of this code inserts html at the top of the page that looks like this:
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| - | //
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| - | // <div id="overlay">
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| - | // <a href="#" onclick="hideLightbox(); return false;"><img id="loadingImage" /></a>
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| - | // </div>
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| - | // <div id="lightbox">
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| - | // <a href="#" onclick="hideLightbox(); return false;" title="Click anywhere to close image">
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| - | // <img id="closeButton" />
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| - | // <img id="lightboxImage" />
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| - | // </a>
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| - | // <div id="lightboxDetails">
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| - | // <div id="lightboxCaption"></div>
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| - | // <div id="keyboardMsg"></div>
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| - | // </div>
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| - | // </div>
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| - |
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| - | var objBody = document.getElementsByTagName("body").item(0);
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| - |
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| - | // create overlay div and hardcode some functional styles (aesthetic styles are in CSS file)
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| - | var objOverlay = document.createElement("div");
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| - | objOverlay.setAttribute('id','overlay');
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| - | objOverlay.onclick = function () {hideLightbox(); return false;}
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| - | objOverlay.style.display = 'none';
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| - | objOverlay.style.position = 'absolute';
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| - | objOverlay.style.top = '0';
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| - | objOverlay.style.left = '0';
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| - | objOverlay.style.zIndex = '90';
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| - | objOverlay.style.width = '100%';
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| - | objBody.insertBefore(objOverlay, objBody.firstChild);
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| - |
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| - | var arrayPageSize = getPageSize();
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| - | var arrayPageScroll = getPageScroll();
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| - |
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| - | // preload and create loader image
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| - | var imgPreloader = new Image();
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| - |
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| - | // if loader image found, create link to hide lightbox and create loadingimage
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| - | imgPreloader.onload=function(){
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| - |
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| - | var objLoadingImageLink = document.createElement("a");
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| - | objLoadingImageLink.setAttribute('href','#');
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| - | objLoadingImageLink.onclick = function () {hideLightbox(); return false;}
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| - | objOverlay.appendChild(objLoadingImageLink);
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| - |
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| - | var objLoadingImage = document.createElement("img");
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| - | objLoadingImage.src = loadingImage;
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| - | objLoadingImage.setAttribute('id','loadingImage');
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| - | objLoadingImage.style.position = 'absolute';
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| - | objLoadingImage.style.zIndex = '150';
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| - | objLoadingImageLink.appendChild(objLoadingImage);
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| - |
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| - | imgPreloader.onload=function(){}; // clear onLoad, as IE will flip out w/animated gifs
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| - |
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| - | return false;
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| - | }
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| - |
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| - | imgPreloader.src = loadingImage;
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| - |
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| - | // create lightbox div, same note about styles as above
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| - | var objLightbox = document.createElement("div");
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| - | objLightbox.setAttribute('id','lightbox');
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| - | objLightbox.style.display = 'none';
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| - | objLightbox.style.position = 'absolute';
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| - | objLightbox.style.zIndex = '100';
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| - | objBody.insertBefore(objLightbox, objOverlay.nextSibling);
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| - |
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| - | // create link
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| - | var objLink = document.createElement("a");
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| - | objLink.setAttribute('href','#');
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| - | objLink.setAttribute('title','Click to close');
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| - | objLink.onclick = function () {hideLightbox(); return false;}
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| - | objLightbox.appendChild(objLink);
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| - |
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| - | // preload and create close button image
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| - | var imgPreloadCloseButton = new Image();
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| - |
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| - | // if close button image found,
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| - | imgPreloadCloseButton.onload=function(){
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| - |
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| - | var objCloseButton = document.createElement("img");
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| - | objCloseButton.src = closeButton;
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| - | objCloseButton.setAttribute('id','closeButton');
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| - | objCloseButton.style.position = 'absolute';
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| - | objCloseButton.style.zIndex = '200';
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| - | objLink.appendChild(objCloseButton);
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| - |
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| - | return false;
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| - | }
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| - |
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| - | imgPreloadCloseButton.src = closeButton;
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| - |
| |
| - | // create image
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| - | var objImage = document.createElement("img");
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| - | objImage.setAttribute('id','lightboxImage');
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| - | objLink.appendChild(objImage);
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| - |
| |
| - | // create details div, a container for the caption and keyboard message
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| - | var objLightboxDetails = document.createElement("div");
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| - | objLightboxDetails.setAttribute('id','lightboxDetails');
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| - | objLightbox.appendChild(objLightboxDetails);
| |
| - |
| |
| - | // create caption
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| - | var objCaption = document.createElement("div");
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| - | objCaption.setAttribute('id','lightboxCaption');
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| - | objCaption.style.display = 'none';
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| - | objLightboxDetails.appendChild(objCaption);
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| - |
| |
| - | // create keyboard message
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| - | var objKeyboardMsg = document.createElement("div");
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| - | objKeyboardMsg.setAttribute('id','keyboardMsg');
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| - | objKeyboardMsg.innerHTML = 'press <a href="#" onclick="hideLightbox(); return false;"><kbd>x</kbd></a> to close';
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| - | objLightboxDetails.appendChild(objKeyboardMsg);
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| - |
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| - |
| |
| - | }
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| - |
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| - |
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| - |
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| - |
| |
| - | //
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| - | // addLoadEvent()
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| - | // Adds event to window.onload without overwriting currently assigned onload functions.
| |
| - | // Function found at Simon Willison's weblog - http://simon.incutio.com/
| |
| - | //
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| - | function addLoadEvent(func)
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| - | {
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| - | var oldonload = window.onload;
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| - | if (typeof window.onload != 'function'){
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| - | window.onload = func;
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| - | } else {
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| - | window.onload = function(){
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| - | oldonload();
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| - | func();
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| - | }
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| - | }
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| - |
| |
| - | }
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| - |
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| - |
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| - |
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| - | addLoadEvent(initLightbox); // run initLightbox onLoad</script>
| |
| - | </head>
| |
| | | | |
| | | | |
| | <body> | | <body> |
| - | <a href="https://static.igem.org/mediawiki/2011/8/8c/UCD_redwhite_tubes_banner.JPG" rel="lightbox" title="tubes">image #1</a> | + | <!--<a href="https://static.igem.org/mediawiki/2011/8/8c/UCD_redwhite_tubes_banner.JPG" rel="lightbox" title="tubes">image #1</a >--> |
| | | | |
| | </body> | | </body> |
"
