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How do I modify the javascript in Lightbox v2.04 to include mouseover effect?
I am trying to develop a page that will include an inventory of photographs and would like to speed up the user experience by letting them mouseover to enlarge an image.I have lightbox 2.04 working right now nicely and I saw a solution posted earlier but it seems outdated. The script has been enhanced. i tried replacing "click" with "mouseover" but that did not seem to work.
i'm a coding noob.
the page is www.centerranch.com/salebarn.html
Thank you in advance.
i'm a coding noob.
the page is www.centerranch.com/salebarn.html
Thank you in advance.
// -----------------------------------------------------------------------------------
//
// Lightbox v2.04
// by Lokesh Dhakar - http://www.lokeshdhakar.com
// Last Modification: 2/9/08
//
// For more information, visit:
// http://lokeshdhakar.com/projects/lightbox2/
//
// 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.
//
// Thanks: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.com), and Thomas Fuchs(mir.aculo.us) for ideas, libs, and snippets.
// Artemy Tregubenko (arty.name) for cleanup and help in updating to latest ver of proto-aculous.
//
// -----------------------------------------------------------------------------------
/*
Table of Contents
-----------------
Configuration
Lightbox Class Declaration
- initialize()
- updateImageList()
- start()
- changeImage()
- resizeImageContainer()
- showImage()
- updateDetails()
- updateNav()
- enableKeyboardNav()
- disableKeyboardNav()
- keyboardAction()
- preloadNeighborImages()
- end()
Function Calls
- document.observe()
*/
// -----------------------------------------------------------------------------------
//
// Configurationl
//
LightboxOptions = Object.extend({
fileLoadingImage: 'images/loading.gif',
fileBottomNavCloseImage: 'images/closelabel.gif',
overlayOpacity: 0.8, // controls transparency of shadow overlay
animate: true, // toggles resizing animations
resizeSpeed: 7, // 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' });
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)-240;
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: .0001});
this.numberDisplay.hide();
var imgPreloader = new Image();
// once image is preloaded, resize image container
imgPreloader.onload = (function(){
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) new Effect.Scale(this.outerImageContainer, yScale, {scaleX: false, duration: this.resizeDuration, queue: 'front'});
if (wDiff != 0) 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();
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();
}
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();
new Effect.Fade(this.overlay, { duration: this.overlayDuration });
$$('select', 'object', 'embed').each(function(node){ node.style.visibility = 'visible' });
},
//
// getPageSize()
//
getPageSize: function() {
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;
}
return [pageWidth,pageHeight];
}
}
document.observe('dom:loaded', function () { new Lightbox(); });
JavaScriptHTMLWeb Languages and Standards
Last Comment
Michel Plungjan
ASKER
in line 165 - 180 where the mouse events would be called, i replaced 'click' with 'onmouseover' and 'mouseover.'
neither of them worked.
:(
Any other suggestions? Thanks you for replying, btw, I sure could use the help.
neither of them worked.
:(
Any other suggestions? Thanks you for replying, btw, I sure could use the help.
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ASKER
haha, I know, I know, but when the boss says, he wants to mouseover, i need to figure out how to do that.
I am sorry. I just tested this in IE and FF on windows.
changing only here
document.observe('mouseove
works.
Did you clear your cache to get the latest version of the js file?
changing only here
document.observe('mouseove
works.
Did you clear your cache to get the latest version of the js file?
document.observe('click', (function(event){
to
document.observe('mouseove
?