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/*!
* Angular Material Design
* https://github.com/angular/material
* @license MIT
* v1.1.2-master-a9ba340
*/
!function(t,e,n){"use strict";function r(t,e,r,o){function i(o){function i(t,e){e.addClass("md-sticky-clone");var n={element:t,clone:e};return v.items.push(n),r.nextTick(function(){m.prepend(n.clone)}),d(),function(){v.items.forEach(function(e,n){e.element[0]===t[0]&&(v.items.splice(n,1),e.clone.remove())}),d()}}function c(){v.items.forEach(s),v.items=v.items.sort(function(t,e){return t.top<e.top?-1:1});for(var t,e=m.prop("scrollTop"),n=v.items.length-1;n>=0;n--)if(e>v.items[n].top){t=v.items[n];break}f(t)}function s(t){var e=t.element[0];for(t.top=0,t.left=0,t.right=0;e&&e!==m[0];)t.top+=e.offsetTop,t.left+=e.offsetLeft,e.offsetParent&&(t.right+=e.offsetParent.offsetWidth-e.offsetWidth-e.offsetLeft),e=e.offsetParent;t.height=t.element.prop("offsetHeight");var o=r.floatingScrollbars()?"0":n;r.bidi(t.clone,"margin-left",t.left,o),r.bidi(t.clone,"margin-right",o,t.right)}function a(){var t=m.prop("scrollTop"),e=t>(a.prevScrollTop||0);if(a.prevScrollTop=t,0===t)return void f(null);if(e){if(v.next&&v.next.top<=t)return void f(v.next);if(v.current&&v.next&&v.next.top-t<=v.next.height)return void p(v.current,t+(v.next.top-v.next.height-t))}if(!e){if(v.current&&v.prev&&t<v.current.top)return void f(v.prev);if(v.next&&v.current&&t>=v.next.top-v.current.height)return void p(v.current,t+(v.next.top-t-v.current.height))}v.current&&p(v.current,t)}function f(t){if(v.current!==t){v.current&&(p(v.current,null),u(v.current,null)),t&&u(t,"active"),v.current=t;var e=v.items.indexOf(t);v.next=v.items[e+1],v.prev=v.items[e-1],u(v.next,"next"),u(v.prev,"prev")}}function u(t,e){t&&t.state!==e&&(t.state&&(t.clone.attr("sticky-prev-state",t.state),t.element.attr("sticky-prev-state",t.state)),t.clone.attr("sticky-state",e),t.element.attr("sticky-state",e),t.state=e)}function p(e,o){e&&(null===o||o===n?e.translateY&&(e.translateY=null,e.clone.css(t.CSS.TRANSFORM,"")):(e.translateY=o,r.bidi(e.clone,t.CSS.TRANSFORM,"translate3d("+e.left+"px,"+o+"px,0)","translateY("+o+"px)")))}var m=o.$element,d=e.throttle(c);l(m),m.on("$scrollstart",d),m.on("$scroll",a);var v;return v={prev:null,current:null,next:null,items:[],add:i,refreshElements:c}}function l(t){function n(){+r.now()-i>l?(o=!1,t.triggerHandler("$scrollend")):(t.triggerHandler("$scroll"),e.throttle(n))}var o,i,l=200;t.on("scroll touchmove",function(){o||(o=!0,e.throttle(n),t.triggerHandler("$scrollstart")),t.triggerHandler("$scroll"),i=+r.now()})}var c=r.checkStickySupport();return function(t,e,n){var r=e.controller("mdContent");if(r)if(c)e.css({position:c,top:0,"z-index":2});else{var l=r.$element.data("$$sticky");l||(l=i(r),r.$element.data("$$sticky",l));var s=n||o(e.clone())(t),a=l.add(e,s);t.$on("$destroy",a)}}}r.$inject=["$mdConstant","$$rAF","$mdUtil","$compile"],e.module("material.components.sticky",["material.core","material.components.content"]).factory("$mdSticky",r)}(window,window.angular);
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