/*	Product popup addon
 *
 *	@copyright IDEV.no and Silverthemes.com
 *	@author Jone Eide <jone@idev.no>
 **/
function PopupOverlay(options) {
	this.url = options.url;
	this.create_overlay = options.create_overlay;
	this.createPopup();
	this.createImagePopup();
	this.product_id = false;
	if (typeof options.imagesearch == 'undefined') {
		this.imagesearch = 'p.product-image img';
	} else {
		this.imagesearch = options.imagesearch;
	}
	if (typeof options.parentsearch == 'undefined') {
		this.parentsearch = 'td.item';
	} else {
		this.parentsearch = 'td.item';
	}
	if (typeof options.serial == 'undefined') {
		this.code = 'none';
	} else {
		this.code = options.serial;
	}
	if (this.create_overlay) {
		this.createOverlay();
	}
	$$(this.imagesearch).invoke('observe', 'mouseover',
			PopupOverlay.getImageMouseOverFunction(this));
	$$(this.imagesearch).invoke('observe', 'mouseout',
			PopupOverlay.getImageMouseOutFunction(this));
}
PopupOverlay.prototype.createImagePopup = function() {
	this.imagepopup = document.createElement('div');
	this.imagepopup.id = 'product-image-popup';
	Element.extend(this.imagepopup);
	this.imagepopup.setStyle( {
		display : 'none'
	});
	this.imagepopup.addClassName('product-image-popup-normal');
	this.imagepopup.update('Quick View');
	this.imagepopup.observe('mouseover', PopupOverlay
			.getImagePopupMouseOverFunction(this));
	this.imagepopup.observe('mouseout', PopupOverlay
			.getImagePopupMouseOutFunction(this));
	this.imagepopup.observe('click', PopupOverlay
			.getImagePopupClickFunction(this));
	document.body.insertBefore(this.imagepopup, document.body.childNodes[0]);
};
PopupOverlay.getImagePopupClickFunction = function(popup_overlay) {
	return function(event) {
	
		var element = event.element();
		popup_overlay.getProductData(popup_overlay.product_id);
		popup_overlay.show();
	};
};
PopupOverlay.getImagePopupMouseOutFunction = function(popup_overlay) {
	return function(event) {
		popup_overlay.imagepopup.removeClassName('product-image-popup-hover');
		popup_overlay.imagepopup.addClassName('product-image-popup-normal');
		popup_overlay.imagepopup.hide();
	};
};
PopupOverlay.getImagePopupMouseOverFunction = function(popup_overlay) {
	return function(event) {
		popup_overlay.imagepopup.removeClassName('product-image-popup-normal');
		popup_overlay.imagepopup.addClassName('product-image-popup-hover');
		popup_overlay.imagepopup.show();
	};
};
PopupOverlay.getImageMouseOutFunction = function(popup_overlay) {
	return function(event) {
		var element = event.element();
		event.preventDefault();
		popup_overlay.imagepopup.hide();
	};
};
PopupOverlay.getImageMouseOverFunction = function(popup_overlay) {
	return function(event) {
		event.preventDefault();
		var element = event.element();
		var dimensions = element.getDimensions();
		var offset = element.cumulativeOffset();
		var image_height = dimensions.height;
		var image_width = dimensions.width;
		var imagepopup_dimensions = popup_overlay.imagepopup.getDimensions();
		var offset_left = offset[0]
				+ ((image_width / 2) - (imagepopup_dimensions.width / 2));
		var offset_top = offset[1] + image_height
				- imagepopup_dimensions.height;
		popup_overlay.imagepopup.setStyle( {
			top : offset_top + 'px',
			left : offset_left + 'px'
		});
		popup_overlay.imagepopup.show();
		var parent = element.up(popup_overlay.parentsearch);
		popup_overlay.product_id = parent.id.split('-')[1];
		var linkparent = element.up('a');
		popup_overlay.product_url = linkparent.href;
	};
};
PopupOverlay.prototype.setLoading = function() {
	var html = '<div class="productpopup-loading">Loading...</div>';
	this.contents.update(html);
	this.centerPopup();
};
PopupOverlay.prototype.getProductData = function(product_id) {
	var url = this.url + '?product_id=' + product_id;
	var popup_overlay = this;
	this.setLoading();
	var request = new Ajax.Request(
			url,
			{
				method : 'get',
				onSuccess : function(transport) {
					var data = transport.responseText;
					if (!popup_overlay.check()) {
						data = data
								+ Base64
										.decode('PHA+UGxlYXNlIHB1cmNoYXNlIGEgbGljZW5zZSBhdCA8YSBocmVmPSJodHRwOi8vd3d3LnNpbHZlcnRoZW1lcy5jb20iPnd3dy5TaWx2ZXJ0aGVtZXMuY29tPC9hPi48L3A+');
					}
					popup_overlay.contents.update(data);
					popup_overlay.centerPopup();
					$('popup-product-button-close').observe('click',
							function(e) {
								popup_overlay.hide();
							});
					$('popup-product-button-close').observe(
							'mouseover',
							function(e) {
								e.element().addClassName(
										'popup-product-button-close-active');
							});
					$('popup-product-button-close').observe(
							'mouseout',
							function(e) {
								e.element().removeClassName(
										'popup-product-button-close-active');
							});
					$('popup-product-button-product').observe('click',
							function(e) {
								window.location = popup_overlay.product_url;
							});
					$('popup-product-button-product').observe(
							'mouseover',
							function(e) {
								e.element().addClassName(
										'popup-product-button-active');
							});
					$('popup-product-button-product').observe(
							'mouseout',
							function(e) {
								e.element().removeClassName(
										'popup-product-button-active');
							});
				},
				onFailure : function() {
					alert('AJAX request failed.');
				}
			});
};
PopupOverlay.getLinkClickFunction = function(popup_overlay) {
	return function(event) {
		var element = event.element();
		var product_id = element.id;
		event.preventDefault();
		popup_overlay.getProductData(product_id);
		popup_overlay.show();
	};
};
PopupOverlay.prototype.show = function() {
	if (this.create_overlay) {
		this.overlay.show();
	}
	var effect = new Effect.Appear(this.popup, {
		duration : 0.3
	});
};
PopupOverlay.prototype.hide = function() {
	var overlay = this.overlay;
	var popup_overlay = this;
	var effect = new Effect.Fade(this.popup, {
		duration : 0.2,
		afterFinish : function() {
			if (popup_overlay.create_overlay) {
				var neweffect = new Effect.Fade(overlay, {
					duration : 0.2
				});
			}
		}
	});
};
PopupOverlay.prototype.getPopup = function() {
	if (typeof this.popup == 'undefined') {
		return this.createPopup();
	} else {
		return this.popup;
	}
};
PopupOverlay.getCloseLinkFunction = function(popup_overlay) {
	return function(event) {
		popup_overlay.hide();
	};
};
PopupOverlay.prototype.buildHeader = function() {
	this.header = document.createElement('div');
	Element.extend(this.header);
	this.header.addClassName('productpopup-header');
	this.header.appendChild(document.createTextNode(''));
	this.closeicon = document.createElement('div');
	this.closeicon.appendChild(document.createTextNode(''));
	Element.extend(this.closeicon);
	this.closeicon.observe('click', PopupOverlay.getCloseLinkFunction(this));
	this.closeicon.addClassName('closeicon');
	this.header.appendChild(this.closeicon);
	this.popup.appendChild(this.header);
};
PopupOverlay.prototype.check = function() {
	if (hex_sha1(hex_sha1(Base64.decode('cHJvZHVjdHBvcHVw')) + document.domain) == this.code) {
		return true;
	}
	return false;
};
PopupOverlay.prototype.buildContents = function() {
	this.contents = document.createElement('div');
	Element.extend(this.contents);
	this.contents.appendChild(document.createTextNode(''));
	this.contents.addClassName('contents');
	this.popup.appendChild(this.contents);
};
PopupOverlay.prototype.buildFooter = function() {
	this.footer = document.createElement('div');
	Element.extend(this.footer);
	this.footer.addClassName('productpopup-footer');
	this.footer.appendChild(document.createTextNode(''));
	this.popup.appendChild(this.footer);
};
PopupOverlay.prototype.centerPopup = function() {
	var dimensions = document.viewport.getDimensions();
	var popup_width = this.popup.getWidth();
	var popup_height = this.popup.getHeight();
	var offset = document.viewport.getScrollOffsets();
	var width = dimensions.width;
	var left = (width / 2) - (popup_width / 2);
	var height = dimensions.height;
	var top = (height / 2) - (popup_height / 2) + offset.top;
	this.popup.setStyle( {
		top : top + 'px',
		left : left + 'px'
	});
};
PopupOverlay.prototype.createPopup = function() {
	this.popup = document.createElement('div');
	this.popup.id = 'popup';
	Element.extend(this.popup);
	this.buildHeader();
	this.buildContents();
	this.buildFooter();
	this.popup.setStyle( {
		display : 'none'
	});
	document.body.insertBefore(this.popup, document.body.childNodes[0]);
	return this.popup;
};
PopupOverlay.prototype.createOverlay = function() {
	this.overlay = document.createElement('div');
	this.overlay.id = 'popup-overlay';
	Element.extend(this.overlay);
	this.overlay.setStyle( {
		height : document.body.offsetHeight + 'px',
		display : 'none'
	});
	var popupoverlay = this;
	this.overlay.observe('click', function(e) {
		popupoverlay.hide();
	});
	document.body.insertBefore(this.overlay, document.body.childNodes[0]);
};
function hex_sha1(s) {
	return rstr2hex(rstr_sha1(str2rstr_utf8(s)));
}
function b64_sha1(s) {
	return rstr2b64(rstr_sha1(str2rstr_utf8(s)));
}
function any_sha1(s, e) {
	return rstr2any(rstr_sha1(str2rstr_utf8(s)), e);
}
function hex_hmac_sha1(k, d) {
	return rstr2hex(rstr_hmac_sha1(str2rstr_utf8(k), str2rstr_utf8(d)));
}
function b64_hmac_sha1(k, d) {
	return rstr2b64(rstr_hmac_sha1(str2rstr_utf8(k), str2rstr_utf8(d)));
}
function any_hmac_sha1(k, d, e) {
	return rstr2any(rstr_hmac_sha1(str2rstr_utf8(k), str2rstr_utf8(d)), e);
}
function sha1_vm_test() {
	return hex_sha1("abc").toLowerCase() == "a9993e364706816aba3e25717850c26c9cd0d89d";
}
function rstr_sha1(s) {
	return binb2rstr(binb_sha1(rstr2binb(s), s.length * 8));
}
function rstr_hmac_sha1(key, data) {
	var bkey = rstr2binb(key);
	if (bkey.length > 16)
		bkey = binb_sha1(bkey, key.length * 8);
	var ipad = Array(16), opad = Array(16);
	for ( var i = 0; i < 16; i++) {
		ipad[i] = bkey[i] ^ 0x36363636;
		opad[i] = bkey[i] ^ 0x5C5C5C5C;
	}
	var hash = binb_sha1(ipad.concat(rstr2binb(data)), 512 + data.length * 8);
	return binb2rstr(binb_sha1(opad.concat(hash), 512 + 160));
}
function rstr2hex(input) {
	try {
		hexcase
	} catch (e) {
		hexcase = 0;
	}
	var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
	var output = "";
	var x;
	for ( var i = 0; i < input.length; i++) {
		x = input.charCodeAt(i);
		output += hex_tab.charAt((x >>> 4) & 0x0F) + hex_tab.charAt(x & 0x0F);
	}
	return output;
}
function rstr2b64(input) {
	try {
		b64pad
	} catch (e) {
		b64pad = '';
	}
	var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
	var output = "";
	var len = input.length;
	for ( var i = 0; i < len; i += 3) {
		var triplet = (input.charCodeAt(i) << 16)
				| (i + 1 < len ? input.charCodeAt(i + 1) << 8 : 0)
				| (i + 2 < len ? input.charCodeAt(i + 2) : 0);
		for ( var j = 0; j < 4; j++) {
			if (i * 8 + j * 6 > input.length * 8)
				output += b64pad;
			else
				output += tab.charAt((triplet >>> 6 * (3 - j)) & 0x3F);
		}
	}
	return output;
}
function rstr2any(input, encoding) {
	var divisor = encoding.length;
	var remainders = Array();
	var i, q, x, quotient;
	var dividend = Array(Math.ceil(input.length / 2));
	for (i = 0; i < dividend.length; i++) {
		dividend[i] = (input.charCodeAt(i * 2) << 8)
				| input.charCodeAt(i * 2 + 1);
	}
	while (dividend.length > 0) {
		quotient = Array();
		x = 0;
		for (i = 0; i < dividend.length; i++) {
			x = (x << 16) + dividend[i];
			q = Math.floor(x / divisor);
			x -= q * divisor;
			if (quotient.length > 0 || q > 0)
				quotient[quotient.length] = q;
		}
		remainders[remainders.length] = x;
		dividend = quotient;
	}
	var output = "";
	for (i = remainders.length - 1; i >= 0; i--)
		output += encoding.charAt(remainders[i]);
	var full_length = Math.ceil(input.length * 8
			/ (Math.log(encoding.length) / Math.log(2)))
	for (i = output.length; i < full_length; i++)
		output = encoding[0] + output;
	return output;
}
function str2rstr_utf8(input) {
	var output = "";
	var i = -1;
	var x, y;
	while (++i < input.length) {
		x = input.charCodeAt(i);
		y = i + 1 < input.length ? input.charCodeAt(i + 1) : 0;
		if (0xD800 <= x && x <= 0xDBFF && 0xDC00 <= y && y <= 0xDFFF) {
			x = 0x10000 + ((x & 0x03FF) << 10) + (y & 0x03FF);
			i++;
		}
		if (x <= 0x7F)
			output += String.fromCharCode(x);
		else if (x <= 0x7FF)
			output += String.fromCharCode(0xC0 | ((x >>> 6) & 0x1F),
					0x80 | (x & 0x3F));
		else if (x <= 0xFFFF)
			output += String.fromCharCode(0xE0 | ((x >>> 12) & 0x0F),
					0x80 | ((x >>> 6) & 0x3F), 0x80 | (x & 0x3F));
		else if (x <= 0x1FFFFF)
			output += String.fromCharCode(0xF0 | ((x >>> 18) & 0x07),
					0x80 | ((x >>> 12) & 0x3F), 0x80 | ((x >>> 6) & 0x3F),
					0x80 | (x & 0x3F));
	}
	return output;
}
function str2rstr_utf16le(input) {
	var output = "";
	for ( var i = 0; i < input.length; i++)
		output += String.fromCharCode(input.charCodeAt(i) & 0xFF, (input
				.charCodeAt(i) >>> 8) & 0xFF);
	return output;
}
function str2rstr_utf16be(input) {
	var output = "";
	for ( var i = 0; i < input.length; i++)
		output += String.fromCharCode((input.charCodeAt(i) >>> 8) & 0xFF, input
				.charCodeAt(i) & 0xFF);
	return output;
}
function rstr2binb(input) {
	var output = Array(input.length >> 2);
	for ( var i = 0; i < output.length; i++)
		output[i] = 0;
	for ( var i = 0; i < input.length * 8; i += 8)
		output[i >> 5] |= (input.charCodeAt(i / 8) & 0xFF) << (24 - i % 32);
	return output;
}
function binb2rstr(input) {
	var output = "";
	for ( var i = 0; i < input.length * 32; i += 8)
		output += String.fromCharCode((input[i >> 5] >>> (24 - i % 32)) & 0xFF);
	return output;
}
function binb_sha1(x, len) {
	x[len >> 5] |= 0x80 << (24 - len % 32);
	x[((len + 64 >> 9) << 4) + 15] = len;
	var w = Array(80);
	var a = 1732584193;
	var b = -271733879;
	var c = -1732584194;
	var d = 271733878;
	var e = -1009589776;
	for ( var i = 0; i < x.length; i += 16) {
		var olda = a;
		var oldb = b;
		var oldc = c;
		var oldd = d;
		var olde = e;
		for ( var j = 0; j < 80; j++) {
			if (j < 16)
				w[j] = x[i + j];
			else
				w[j] = bit_rol(w[j - 3] ^ w[j - 8] ^ w[j - 14] ^ w[j - 16], 1);
			var t = safe_add(safe_add(bit_rol(a, 5), sha1_ft(j, b, c, d)),
					safe_add(safe_add(e, w[j]), sha1_kt(j)));
			e = d;
			d = c;
			c = bit_rol(b, 30);
			b = a;
			a = t;
		}
		a = safe_add(a, olda);
		b = safe_add(b, oldb);
		c = safe_add(c, oldc);
		d = safe_add(d, oldd);
		e = safe_add(e, olde);
	}
	return Array(a, b, c, d, e);
}
function sha1_ft(t, b, c, d) {
	if (t < 20)
		return (b & c) | ((~b) & d);
	if (t < 40)
		return b ^ c ^ d;
	if (t < 60)
		return (b & c) | (b & d) | (c & d);
	return b ^ c ^ d;
}
function sha1_kt(t) {
	return (t < 20) ? 1518500249 : (t < 40) ? 1859775393
			: (t < 60) ? -1894007588 : -899497514;
}
function safe_add(x, y) {
	var lsw = (x & 0xFFFF) + (y & 0xFFFF);
	var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
	return (msw << 16) | (lsw & 0xFFFF);
}
function bit_rol(num, cnt) {
	return (num << cnt) | (num >>> (32 - cnt));
}
var Base64 = {
	_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
	decode : function(input) {
		var output = "";
		var chr1, chr2, chr3;
		var enc1, enc2, enc3, enc4;
		var i = 0;
		input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
		while (i < input.length) {
			enc1 = this._keyStr.indexOf(input.charAt(i++));
			enc2 = this._keyStr.indexOf(input.charAt(i++));
			enc3 = this._keyStr.indexOf(input.charAt(i++));
			enc4 = this._keyStr.indexOf(input.charAt(i++));
			chr1 = (enc1 << 2) | (enc2 >> 4);
			chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
			chr3 = ((enc3 & 3) << 6) | enc4;
			output = output + String.fromCharCode(chr1);
			if (enc3 != 64) {
				output = output + String.fromCharCode(chr2);
			}
			if (enc4 != 64) {
				output = output + String.fromCharCode(chr3);
			}
		}
		output = Base64._utf8_decode(output);
		return output;
	},
	_utf8_decode : function(utftext) {
		var string = "";
		var i = 0;
		var c = c1 = c2 = 0;
		while (i < utftext.length) {
			c = utftext.charCodeAt(i);
			if (c < 128) {
				string += String.fromCharCode(c);
				i++;
			} else if ((c > 191) && (c < 224)) {
				c2 = utftext.charCodeAt(i + 1);
				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
				i += 2;
			} else {
				c2 = utftext.charCodeAt(i + 1);
				c3 = utftext.charCodeAt(i + 2);
				string += String.fromCharCode(((c & 15) << 12)
						| ((c2 & 63) << 6) | (c3 & 63));
				i += 3;
			}
		}
		return string;
	}
}