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lightbox.js
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lightbox.js
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/*
Created By: Chris Campbell
Website: http://particletree.com
Date: 2/1/2006
Adapted By: Simon de Haan
Website: http://blog.eight.nl
Date: 21/2/2006
Inspired by the lightbox implementation found at http://www.huddletogether.com/projects/lightbox/
And the lightbox gone wild by ParticleTree at http://particletree.com/features/lightbox-gone-wild/
*/
/*-------------------------------GLOBAL VARIABLES------------------------------------*/
var currentLightBox, currentDraggable;
/*-----------------------------------------------------------------------------------*/
Event.observe(window, 'load', initializeLightbox, false);
var lightbox = Class.create();
lightbox.prototype = {
yPos : 0,
xPos : 0,
/* initialize: function(ctrl) {
this.content = ctrl.rel;
Event.observe(ctrl, 'click', this.activate.bindAsEventListener(this), false);
ctrl.onclick = function(){return false;};
},
*/
initialize: function(id) {
this.content = id;
},
// Turn everything on - mainly the IE fixes
activate: function(){
if (Prototype.Browser.IE){
this.getScroll();
this.setScroll(0,0);
}
this.displayLightbox("block");
},
// Taken from lightbox implementation found at http://www.huddletogether.com/projects/lightbox/
getScroll: function(){
if (self.pageYOffset) {
this.yPos = self.pageYOffset;
} else if (document.documentElement && document.documentElement.scrollTop){
this.yPos = document.documentElement.scrollTop;
} else if (document.body) {
this.yPos = document.body.scrollTop;
}
},
setScroll: function(x, y){
window.scrollTo(x, y);
},
displayLightbox: function(display){
if(!$('overlay')){
addLightboxMarkup();
}
if(display == 'none'){
$('overlay').fade({
duration:0.5,
afterFinish : function(){
if(this.originalStyle){
$('overlay').setStyle(this.originalStyle);
}
}.bind(this)
});
}else{
$('overlay').setAttribute('style', '');
$('overlay').style.display = display;
if(this.overlayStyle){
this.originalStyle = {};
for(var key in this.overlayStyle){
this.originalStyle[key] = $('overlay').getStyle(key);
}
$('overlay').setStyle(this.overlayStyle);
}
if(this.overlayClass){
$('overlay').className = 'overlay '+this.overlayClass;
}else{
$('overlay').className = 'overlay';
}
}
if(this.content != null)
{
$(this.content).style.display = display;
currentDraggable = new Draggable(this.content, {
handle:"dialogTitle",
zindex:1050,
starteffect : function(element){},
endeffect : function(element){}
});
}
//if(display != 'none') this.actions();
},
// Search through new links within the lightbox, and attach click event
// WARNING : QUITE LONG IN I.E.
actions: function(){
var lbActions = document.getElementsByClassName('lbAction');
for(var i = 0; i < lbActions.length; i++) {
Event.observe(lbActions[i], 'click', this[lbActions[i].rel].bindAsEventListener(this), false);
lbActions[i].onclick = function(){return false;};
}
},
// Example of creating your own functionality once lightbox is initiated
deactivate: function(){
if (Prototype.Browser.IE){
this.setScroll(0,this.yPos);
}
this.displayLightbox("none");
}
};
/*-----------------------------------------------------------------------------------------------*/
// Onload, make all links that need to trigger a lightbox active
function initializeLightbox(){
addLightboxMarkup();
/*
lbox = document.getElementsByClassName('lbOn');
for(i = 0; i < lbox.length; i++) {
valid = new lightbox(lbox[i]);
}
*/
Event.observe(document, "keydown", function(e){
if(e==null)e=window.event;
if(e.keyCode == 27)
{
ajaxplorer.cancelCopyOrMove();
//modal.close();
if(modal.currentLightBoxElement){
removeLightboxFromElement(modal.currentLightBoxElement);
if(modal.currentLightBoxModal && modal.currentLightBoxModal.parentNode) {
modal.currentLightBoxModal.remove();
}
modal.currentLightBoxElement = null;
modal.currentLightBoxModal = null;
}else{
hideLightBox();
}
}
if(e.keyCode == 9) return false;
return true;
});
}
function displayLightBoxById(id, overlayStyle, overlayClass)
{
var valid = new lightbox(id);
if(overlayStyle) valid.overlayStyle = overlayStyle;
if(overlayClass) valid.overlayClass = overlayClass;
valid.activate();
currentLightBox = valid;
if(id != 'copymove_div')
{
}
}
function hideLightBox(onFormSubmit)
{
if(modal.closeValidation){
var res = modal.closeValidation();
if(res === false){
return;
}
modal.closeValidation = null;
}
if(currentLightBox)
{
currentLightBox.deactivate();
hideOverlay();
if(!onFormSubmit)
{
currentLightBox = null;
}
ajaxplorer.enableNavigation();
ajaxplorer.focusLast();
ajaxplorer.enableShortcuts();
document.fire("ajaxplorer:selection_changed");
}
if(currentDraggable) currentDraggable.destroy();
if(modal.closeFunction){
modal.closeFunction();
modal.closeFunction = null;
}
}
function setOverlay()
{
currentLightBox = new lightbox(null);
currentLightBox.activate();
}
function hideOverlay()
{
if(currentLightBox)
{
currentLightBox.deactivate();
currentLightBox = null;
}
}
// Add in markup necessary to make this work. Basically two divs:
// Overlay holds the shadow
// Lightbox is the centered square that the content is put into.
function addLightboxMarkup() {
var bod = document.getElementsByTagName('body')[0];
var overlay = document.createElement('div');
overlay.id = 'overlay';
bod.appendChild(overlay);
}
function addLightboxMarkupToElement(element, skipElement)
{
var overlay = document.createElement('div');
overlay.id = 'element_overlay';
var top, left, height, width;
if (Prototype.Browser.IE){
var position = Position.positionedOffset($(element)); // IE CASE
//Position.offsetParent(element);
top = position[1];
left = 0;
}
else
{
var position = Position.cumulativeOffset($(element));
top = position[1];
left = position[0];
}
width = element.getWidth();
height = element.getHeight();
if(skipElement)
{
var addTop = top + parseInt(skipElement.getHeight());
var addHeight = height + parseInt(skipElement.getHeight());
top = addTop + 'px';
height = addHeight + 'px';
}
var borders = {
top:parseInt(element.getStyle('borderTopWidth')),
bottom:parseInt(element.getStyle('borderBottomWidth')),
right:parseInt(element.getStyle('borderRightWidth')),
left:parseInt(element.getStyle('borderLeftWidth'))
};
top += borders.top;
height -= borders.top + borders.bottom;
left += borders.left;
width -= borders.left + borders.right;
$(overlay).setStyle({top:top,left:left,height:height,width:width});
element.appendChild(overlay);
}
function removeLightboxFromElement(element)
{
$(element).select('#element_overlay').invoke('remove');
}