/*
jQuery blockUI plugin
Version 2.56.0-2013.01.31
requires jQuery v1.7 or later
Copyright (c) 2007-2013 M. Alsup
Thanks to Amir-Hossein Sobhi for some excellent contributions!

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

;(function() {
"use strict";

	function setup($) {
		$.fn._fadeIn = $.fn.fadeIn;

		var noOp = $.noop || function() {};

		// this bit is to ensure we don't call setExpression when we shouldn't (with extra muscle to handle
		// retarded userAgent strings on Vista)
		var msie = /MSIE/.test(navigator.userAgent);
		var ie6  = /MSIE 6.0/.test(navigator.userAgent) && ! /MSIE 8.0/.test(navigator.userAgent);
		var mode = document.documentMode || 0;
		// var setExpr = msie && (($.browser.version < 8 && !mode) || mode < 8);
		var setExpr = $.isFunction( document.createElement('div').style.setExpression );

		// global $ methods for blocking/unblocking the entire page
		$.blockUI   = function(opts) { install(window, opts); };
		$.unblockUI = function(opts) { remove(window, opts); };

		// convenience method for quick growl-like notifications  (http://www.google.com/search?q=growl)
		$.growlUI = function(title, message, timeout, onClose) {
			var $m = $('<div class="growlUI"></div>');
			if (title) $m.append('<h1>'+title+'</h1>');
			if (message) $m.append('<h2>'+message+'</h2>');
			if (timeout === undefined) timeout = 3000;
			$.blockUI({
				message: $m, fadeIn: 700, fadeOut: 1000, centerY: false,
				timeout: timeout, showOverlay: false,
				onUnblock: onClose,
				css: $.blockUI.defaults.growlCSS
			});
		};

		// plugin method for blocking element content
		$.fn.block = function(opts) {
			var fullOpts = $.extend({}, $.blockUI.defaults, opts || {});
			this.each(function() {
				var $el = $(this);
				if (fullOpts.ignoreIfBlocked && $el.data('blockUI.isBlocked'))
					return;
				$el.unblock({ fadeOut: 0 });
			});

			return this.each(function() {
				if ($.css(this,'position') == 'static') {
					this.style.position = 'relative';
					$(this).data('blockUI.static', true);
				}
				this.style.zoom = 1; // force 'hasLayout' in ie
				install(this, opts);
			});
		};

		// plugin method for unblocking element content
		$.fn.unblock = function(opts) {
			return this.each(function() {
				remove(this, opts);
			});
		};

		$.blockUI.version = 2.56; // 2nd generation blocking at no extra cost!

		// override these in your code to change the default behavior and style
		$.blockUI.defaults = {
			// message displayed when blocking (use null for no message)
			message:  '<h1>Please wait...</h1>',

			title: null,		// title string; only used when theme == true
			draggable: true,	// only used when theme == true (requires jquery-ui.js to be loaded)

			theme: false, // set to true to use with jQuery UI themes

			// styles for the message when blocking; if you wish to disable
			// these and use an external stylesheet then do this in your code:
			// $.blockUI.defaults.css = {};
			css: {
				padding:	0,
				margin:		0,
				width:		'30%',
				top:		'40%',
				left:		'35%',
				textAlign:	'center',
				color:		'#000',
				border:		'3px solid #aaa',
				backgroundColor:'#fff',
				cursor:		'wait'
			},

			// minimal style set used when themes are used
			themedCSS: {
				width:	'30%',
				top:	'40%',
				left:	'35%'
			},

			// styles for the overlay
			overlayCSS:  {
				backgroundColor:	'#000',
				opacity:			0.6,
				cursor:				'wait'
			},

			// style to replace wait cursor before unblocking to correct issue
			// of lingering wait cursor
			cursorReset: 'default',

			// styles applied when using $.growlUI
			growlCSS: {
				width:		'350px',
				top:		'10px',
				left:		'',
				right:		'10px',
				border:		'none',
				padding:	'5px',
				opacity:	0.6,
				cursor:		'default',
				color:		'#fff',
				backgroundColor: '#000',
				'-webkit-border-radius':'10px',
				'-moz-border-radius':	'10px',
				'border-radius':		'10px'
			},

			// IE issues: 'about:blank' fails on HTTPS and javascript:false is s-l-o-w
			// (hat tip to Jorge H. N. de Vasconcelos)
			/*jshint scripturl:true */
			iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank',

			// force usage of iframe in non-IE browsers (handy for blocking applets)
			forceIframe: false,

			// z-index for the blocking overlay
			baseZ: 1000,

			// set these to true to have the message automatically centered
			centerX: true, // <-- only effects element blocking (page block controlled via css above)
			centerY: true,

			// allow body element to be stetched in ie6; this makes blocking look better
			// on "short" pages.  disable if you wish to prevent changes to the body height
			allowBodyStretch: true,

			// enable if you want key and mouse events to be disabled for content that is blocked
			bindEvents: true,

			// be default blockUI will supress tab navigation from leaving blocking content
			// (if bindEvents is true)
			constrainTabKey: true,

			// fadeIn time in millis; set to 0 to disable fadeIn on block
			fadeIn:  200,

			// fadeOut time in millis; set to 0 to disable fadeOut on unblock
			fadeOut:  400,

			// time in millis to wait before auto-unblocking; set to 0 to disable auto-unblock
			timeout: 0,

			// disable if you don't want to show the overlay
			showOverlay: true,

			// if true, focus will be placed in the first available input field when
			// page blocking
			focusInput: true,

			// suppresses the use of overlay styles on FF/Linux (due to performance issues with opacity)
			// no longer needed in 2012
			// applyPlatformOpacityRules: true,

			// callback method invoked when fadeIn has completed and blocking message is visible
			onBlock: null,

			// callback method invoked when unblocking has completed; the callback is
			// passed the element that has been unblocked (which is the window object for page
			// blocks) and the options that were passed to the unblock call:
			//	onUnblock(element, options)
			onUnblock: null,

			// callback method invoked when the overlay area is clicked.
			// setting this will turn the cursor to a pointer, otherwise cursor defined in overlayCss will be used.
			onOverlayClick: null,

			// don't ask; if you really must know: http://groups.google.com/group/jquery-en/browse_thread/thread/36640a8730503595/2f6a79a77a78e493#2f6a79a77a78e493
			quirksmodeOffsetHack: 4,

			// class name of the message block
			blockMsgClass: 'blockMsg',

			// if it is already blocked, then ignore it (don't unblock and reblock)
			ignoreIfBlocked: false
		};

		// private data and functions follow...

		var pageBlock = null;
		var pageBlockEls = [];

		function install(el, opts) {
			var css, themedCSS;
			var full = (el == window);
			var msg = (opts && opts.message !== undefined ? opts.message : undefined);
			opts = $.extend({}, $.blockUI.defaults, opts || {});

			if (opts.ignoreIfBlocked && $(el).data('blockUI.isBlocked'))
				return;

			opts.overlayCSS = $.extend({}, $.blockUI.defaults.overlayCSS, opts.overlayCSS || {});
			css = $.extend({}, $.blockUI.defaults.css, opts.css || {});
			if (opts.onOverlayClick)
				opts.overlayCSS.cursor = 'pointer';

			themedCSS = $.extend({}, $.blockUI.defaults.themedCSS, opts.themedCSS || {});
			msg = msg === undefined ? opts.message : msg;

			// remove the current block (if there is one)
			if (full && pageBlock)
				remove(window, {fadeOut:0});

			// if an existing element is being used as the blocking content then we capture
			// its current place in the DOM (and current display style) so we can restore
			// it when we unblock
			if (msg && typeof msg != 'string' && (msg.parentNode || msg.jquery)) {
				var node = msg.jquery ? msg[0] : msg;
				var data = {};
				$(el).data('blockUI.history', data);
				data.el = node;
				data.parent = node.parentNode;
				data.display = node.style.display;
				data.position = node.style.position;
				if (data.parent)
					data.parent.removeChild(node);
			}

			$(el).data('blockUI.onUnblock', opts.onUnblock);
			var z = opts.baseZ;

			// blockUI uses 3 layers for blocking, for simplicity they are all used on every platform;
			// layer1 is the iframe layer which is used to supress bleed through of underlying content
			// layer2 is the overlay layer which has opacity and a wait cursor (by default)
			// layer3 is the message content that is displayed while blocking
			var lyr1, lyr2, lyr3, s;
			if (msie || opts.forceIframe)
				lyr1 = $('<iframe class="blockUI" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;position:absolute;width:100%;height:100%;top:0;left:0" src="'+opts.iframeSrc+'"></iframe>');
			else
				lyr1 = $('<div class="blockUI" style="display:none"></div>');

			if (opts.theme)
				lyr2 = $('<div class="blockUI blockOverlay ui-widget-overlay" style="z-index:'+ (z++) +';display:none"></div>');
			else
				lyr2 = $('<div class="blockUI blockOverlay" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;width:100%;height:100%;top:0;left:0"></div>');

			if (opts.theme && full) {
				s = '<div class="blockUI ' + opts.blockMsgClass + ' blockPage ui-dialog ui-widget ui-corner-all" style="z-index:'+(z+10)+';display:none;position:fixed">';
				if ( opts.title ) {
					s += '<div class="ui-widget-header ui-dialog-titlebar ui-corner-all blockTitle">'+(opts.title || '&nbsp;')+'</div>';
				}
				s += '<div class="ui-widget-content ui-dialog-content"></div>';
				s += '</div>';
			}
			else if (opts.theme) {
				s = '<div class="blockUI ' + opts.blockMsgClass + ' blockElement ui-dialog ui-widget ui-corner-all" style="z-index:'+(z+10)+';display:none;position:absolute">';
				if ( opts.title ) {
					s += '<div class="ui-widget-header ui-dialog-titlebar ui-corner-all blockTitle">'+(opts.title || '&nbsp;')+'</div>';
				}  
				s += '<div class="ui-widget-content ui-dialog-content"></div>';
				s += '</div>';
			}
			else if (full) {
				s = '<div class="blockUI ' + opts.blockMsgClass + ' blockPage" style="z-index:'+(z+10)+';display:none;position:fixed"></div>';
			}
			else {
				s = '<div class="blockUI ' + opts.blockMsgClass + ' blockElement" style="z-index:'+(z+10)+';display:none;position:absolute"></div>';
			}
			lyr3 = $(s);

			// if we have a message, style it
			if (msg) {
				if (opts.theme) {
					lyr3.css(themedCSS);
					lyr3.addClass('ui-widget-content');
				}
				else
					lyr3.css(css);
			}

			// style the overlay
			if (!opts.theme /*&& (!opts.applyPlatformOpacityRules)*/)
				lyr2.css(opts.overlayCSS);
			lyr2.css('position', full ? 'fixed' : 'absolute');

			// make iframe layer transparent in IE
			if (msie || opts.forceIframe)
				lyr1.css('opacity',0.0);

			//$([lyr1[0],lyr2[0],lyr3[0]]).appendTo(full ? 'body' : el);
			var layers = [lyr1,lyr2,lyr3], $par = full ? $('body') : $(el);
			$.each(layers, function() {
				this.appendTo($par);
			});

			if (opts.theme && opts.draggable && $.fn.draggable) {
				lyr3.draggable({
					handle: '.ui-dialog-titlebar',
					cancel: 'li'
				});
			}

			// ie7 must use absolute positioning in quirks mode and to account for activex issues (when scrolling)
			var expr = setExpr && (!$.support.boxModel || $('object,embed', full ? null : el).length > 0);
			if (ie6 || expr) {
				// give body 100% height
				if (full && opts.allowBodyStretch && $.support.boxModel)
					$('html,body').css('height','100%');

				// fix ie6 issue when blocked element has a border width
				if ((ie6 || !$.support.boxModel) && !full) {
					var t = sz(el,'borderTopWidth'), l = sz(el,'borderLeftWidth');
					var fixT = t ? '(0 - '+t+')' : 0;
					var fixL = l ? '(0 - '+l+')' : 0;
				}

				// simulate fixed position
				$.each(layers, function(i,o) {
					var s = o[0].style;
					s.position = 'absolute';
					if (i < 2) {
						if (full)
							s.setExpression('height','Math.max(document.body.scrollHeight, document.body.offsetHeight) - (jQuery.support.boxModel?0:'+opts.quirksmodeOffsetHack+') + "px"');
						else
							s.setExpression('height','this.parentNode.offsetHeight + "px"');
						if (full)
							s.setExpression('width','jQuery.support.boxModel && document.documentElement.clientWidth || document.body.clientWidth + "px"');
						else
							s.setExpression('width','this.parentNode.offsetWidth + "px"');
						if (fixL) s.setExpression('left', fixL);
						if (fixT) s.setExpression('top', fixT);
					}
					else if (opts.centerY) {
						if (full) s.setExpression('top','(document.documentElement.clientHeight || document.body.clientHeight) / 2 - (this.offsetHeight / 2) + (blah = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + "px"');
						s.marginTop = 0;
					}
					else if (!opts.centerY && full) {
						var top = (opts.css && opts.css.top) ? parseInt(opts.css.top, 10) : 0;
						var expression = '((document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + '+top+') + "px"';
						s.setExpression('top',expression);
					}
				});
			}

			// show the message
			if (msg) {
				if (opts.theme)
					lyr3.find('.ui-widget-content').append(msg);
				else
					lyr3.append(msg);
				if (msg.jquery || msg.nodeType)
					$(msg).show();
			}

			if ((msie || opts.forceIframe) && opts.showOverlay)
				lyr1.show(); // opacity is zero
			if (opts.fadeIn) {
				var cb = opts.onBlock ? opts.onBlock : noOp;
				var cb1 = (opts.showOverlay && !msg) ? cb : noOp;
				var cb2 = msg ? cb : noOp;
				if (opts.showOverlay)
					lyr2._fadeIn(opts.fadeIn, cb1);
				if (msg)
					lyr3._fadeIn(opts.fadeIn, cb2);
			}
			else {
				if (opts.showOverlay)
					lyr2.show();
				if (msg)
					lyr3.show();
				if (opts.onBlock)
					opts.onBlock();
			}

			// bind key and mouse events
			bind(1, el, opts);

			if (full) {
				pageBlock = lyr3[0];
				pageBlockEls = $(':input:enabled:visible',pageBlock);
				if (opts.focusInput)
					setTimeout(focus, 20);
			}
			else
				center(lyr3[0], opts.centerX, opts.centerY);

			if (opts.timeout) {
				// auto-unblock
				var to = setTimeout(function() {
					if (full)
						$.unblockUI(opts);
					else
						$(el).unblock(opts);
				}, opts.timeout);
				$(el).data('blockUI.timeout', to);
			}
		}

		// remove the block
		function remove(el, opts) {
			var full = (el == window);
			var $el = $(el);
			var data = $el.data('blockUI.history');
			var to = $el.data('blockUI.timeout');
			if (to) {
				clearTimeout(to);
				$el.removeData('blockUI.timeout');
			}
			opts = $.extend({}, $.blockUI.defaults, opts || {});
			bind(0, el, opts); // unbind events

			if (opts.onUnblock === null) {
				opts.onUnblock = $el.data('blockUI.onUnblock');
				$el.removeData('blockUI.onUnblock');
			}

			var els;
			if (full) // crazy selector to handle odd field errors in ie6/7
				els = $('body').children().filter('.blockUI').add('body > .blockUI');
			else
				els = $el.find('>.blockUI');

			// fix cursor issue
			if ( opts.cursorReset ) {
				if ( els.length > 1 )
					els[1].style.cursor = opts.cursorReset;
				if ( els.length > 2 )
					els[2].style.cursor = opts.cursorReset;
			}

			if (full)
				pageBlock = pageBlockEls = null;

			if (opts.fadeOut) {
				els.fadeOut(opts.fadeOut);
				setTimeout(function() { reset(els,data,opts,el); }, opts.fadeOut);
			}
			else
				reset(els, data, opts, el);
		}

		// move blocking element back into the DOM where it started
		function reset(els,data,opts,el) {
			var $el = $(el);
			els.each(function(i,o) {
				// remove via DOM calls so we don't lose event handlers
				if (this.parentNode)
					this.parentNode.removeChild(this);
			});

			if (data && data.el) {
				data.el.style.display = data.display;
				data.el.style.position = data.position;
				if (data.parent)
					data.parent.appendChild(data.el);
				$el.removeData('blockUI.history');
			}

			if ($el.data('blockUI.static')) {
				$el.css('position', 'static'); // #22
			}

			if (typeof opts.onUnblock == 'function')
				opts.onUnblock(el,opts);

			// fix issue in Safari 6 where block artifacts remain until reflow
			var body = $(document.body), w = body.width(), cssW = body[0].style.width;
			body.width(w-1).width(w);
			body[0].style.width = cssW;
		}

		// bind/unbind the handler
		function bind(b, el, opts) {
			var full = el == window, $el = $(el);

			// don't bother unbinding if there is nothing to unbind
			if (!b && (full && !pageBlock || !full && !$el.data('blockUI.isBlocked')))
				return;

			$el.data('blockUI.isBlocked', b);

			// don't bind events when overlay is not in use or if bindEvents is false
			if (!opts.bindEvents || (b && !opts.showOverlay))
				return;

			// bind anchors and inputs for mouse and key events
			var events = 'mousedown mouseup keydown keypress keyup touchstart touchend touchmove';
			if (b)
				$(document).bind(events, opts, handler);
			else
				$(document).unbind(events, handler);

		// former impl...
		//		var $e = $('a,:input');
		//		b ? $e.bind(events, opts, handler) : $e.unbind(events, handler);
		}

		// event handler to suppress keyboard/mouse events when blocking
		function handler(e) {
			// allow tab navigation (conditionally)
			if (e.keyCode && e.keyCode == 9) {
				if (pageBlock && e.data.constrainTabKey) {
					var els = pageBlockEls;
					var fwd = !e.shiftKey && e.target === els[els.length-1];
					var back = e.shiftKey && e.target === els[0];
					if (fwd || back) {
						setTimeout(function(){focus(back);},10);
						return false;
					}
				}
			}
			var opts = e.data;
			var target = $(e.target);
			if (target.hasClass('blockOverlay') && opts.onOverlayClick)
				opts.onOverlayClick();

			// allow events within the message content
			if (target.parents('div.' + opts.blockMsgClass).length > 0)
				return true;

			// allow events for content that is not being blocked
			return target.parents().children().filter('div.blockUI').length === 0;
		}

		function focus(back) {
			if (!pageBlockEls)
				return;
			var e = pageBlockEls[back===true ? pageBlockEls.length-1 : 0];
			if (e)
				e.focus();
		}

		function center(el, x, y) {
			var p = el.parentNode, s = el.style;
			var l = ((p.offsetWidth - el.offsetWidth)/2) - sz(p,'borderLeftWidth');
			var t = ((p.offsetHeight - el.offsetHeight)/2) - sz(p,'borderTopWidth');
			if (x) s.left = l > 0 ? (l+'px') : '0';
			if (y) s.top  = t > 0 ? (t+'px') : '0';
		}

		function sz(el, p) {
			return parseInt($.css(el,p),10)||0;
		}

	}


	/*global define:true */
	if (typeof define === 'function' && define.amd && define.amd.jQuery) {
		define(['jquery'], setup);
	} else {
		setup(jQuery);
	}

})();