Current state

public/js/lightbox_html.js

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+/*
+Created By: Chris Campbell
+Website: http://particletree.com
+Date: 2/1/2006
+
+Inspired by the lightbox implementation found at http://www.huddletogether.com/projects/lightbox/
+*/
+
+/*-------------------------------GLOBAL VARIABLES------------------------------------*/
+
+var detect = navigator.userAgent.toLowerCase();
+var OS,browser,version,total,thestring;
+
+/*-----------------------------------------------------------------------------------------------*/
+
+//Browser detect script origionally created by Peter Paul Koch at http://www.quirksmode.org/
+
+function getBrowserInfo() {
+	if (checkIt('konqueror')) {
+		browser = "Konqueror";
+		OS = "Linux";
+	}
+	else if (checkIt('safari')) browser 	= "Safari"
+	else if (checkIt('omniweb')) browser 	= "OmniWeb"
+	else if (checkIt('opera')) browser 		= "Opera"
+	else if (checkIt('webtv')) browser 		= "WebTV";
+	else if (checkIt('icab')) browser 		= "iCab"
+	else if (checkIt('msie')) browser 		= "Internet Explorer"
+	else if (!checkIt('compatible')) {
+		browser = "Netscape Navigator"
+		version = detect.charAt(8);
+	}
+	else browser = "An unknown browser";
+
+	if (!version) version = detect.charAt(place + thestring.length);
+
+	if (!OS) {
+		if (checkIt('linux')) OS 		= "Linux";
+		else if (checkIt('x11')) OS 	= "Unix";
+		else if (checkIt('mac')) OS 	= "Mac"
+		else if (checkIt('win')) OS 	= "Windows"
+		else OS 								= "an unknown operating system";
+	}
+}
+
+function checkIt(string) {
+	place = detect.indexOf(string) + 1;
+	thestring = string;
+	return place;
+}
+
+/*-----------------------------------------------------------------------------------------------*/
+
+Event.observe(window, 'load', initialize, false);
+Event.observe(window, 'load', getBrowserInfo, false);
+Event.observe(window, 'unload', Event.unloadCache, false);
+
+var lightbox = Class.create();
+
+lightbox.prototype = {
+
+	yPos : 0,
+	xPos : 0,
+
+	initialize: function(ctrl) {
+		this.content = ctrl.href;
+		Event.observe(ctrl, 'click', this.activate.bindAsEventListener(this), false);
+		ctrl.onclick = function(){return false;};
+	},
+
+	// Turn everything on - mainly the IE fixes
+	activate: function(){
+		if (browser == 'Internet Explorer'){
+			this.getScroll();
+			this.prepareIE('100%', 'hidden');
+			this.setScroll(0,0);
+			this.hideSelects('hidden');
+		}
+		this.displayLightbox("block");
+	},
+
+	// Ie requires height to 100% and overflow hidden or else you can scroll down past the lightbox
+	prepareIE: function(height, overflow){
+		bod = document.getElementsByTagName('body')[0];
+		bod.style.height = height;
+		bod.style.overflow = overflow;
+
+		htm = document.getElementsByTagName('html')[0];
+		htm.style.height = height;
+		htm.style.overflow = overflow;
+	},
+
+	// In IE, select elements hover on top of the lightbox
+	hideSelects: function(visibility){
+		selects = document.getElementsByTagName('select');
+		for(i = 0; i < selects.length; i++) {
+			selects[i].style.visibility = visibility;
+		}
+	},
+
+	// 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){
+		$('overlay').style.display = display;
+		$('lightbox').style.display = display;
+		if(display != 'none') this.loadInfo();
+	},
+
+	// Begin Ajax request based off of the href of the clicked linked
+	loadInfo: function() {
+		var myAjax = new Ajax.Request(
+        this.content,
+        {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
+		);
+
+	},
+
+	// Display Ajax response
+	processInfo: function(response){
+		info = "<div id='lbContent'>" + response.responseText + "</div>";
+		new Insertion.Before($('lbLoadMessage'), info)
+		$('lightbox').className = "done";
+		this.actions();
+	},
+
+	// Search through new links within the lightbox, and attach click event
+	actions: function(){
+		lbActions = document.getElementsByClassName('lbAction');
+
+		for(i = 0; i < lbActions.length; i++) {
+			Event.observe(lbActions[i], 'click', this[lbActions[i].rel].bindAsEventListener(this), false);
+			lbActions[i].onclick = function(){return false;};
+		}
+
+	},
+
+	// Example of creating your own functionality once lightbox is initiated
+	insert: function(e){
+	   link = Event.element(e).parentNode;
+	   Element.remove($('lbContent'));
+
+	   var myAjax = new Ajax.Request(
+			  link.href,
+			  {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
+	   );
+
+	},
+
+	// Example of creating your own functionality once lightbox is initiated
+	deactivate: function(){
+		Element.remove($('lbContent'));
+
+		if (browser == "Internet Explorer"){
+			this.setScroll(0,this.yPos);
+			this.prepareIE("auto", "auto");
+			this.hideSelects("visible");
+		}
+
+		this.displayLightbox("none");
+	}
+}
+
+/*-----------------------------------------------------------------------------------------------*/
+
+// Onload, make all links that need to trigger a lightbox active
+function initialize(){
+	addLightboxMarkup();
+	lbox = document.getElementsByClassName('lbOn');
+	for(i = 0; i < lbox.length; i++) {
+		valid = new lightbox(lbox[i]);
+	}
+}
+
+// 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() {
+	bod 				= document.getElementsByTagName('body')[0];
+	overlay 			= document.createElement('div');
+	overlay.id		= 'overlay';
+	lb					= document.createElement('div');
+	lb.id				= 'lightbox';
+	lb.className 	= 'loading';
+	lb.innerHTML	= '<div id="lbLoadMessage">' +
+						  '<p></p>' +
+						  '</div>';
+	bod.appendChild(overlay);
+	bod.appendChild(lb);
+}