;/*FB_PKG_DELIM*/

__d("BasicVector",[],(function(t,n,r,o,a,i){var e=(function(){function e(e,t){this.x=e,this.y=t}var t=e.prototype;return t.derive=function(n,r){return new e(n,r)},t.toString=function(){return"("+this.x+", "+this.y+")"},t.add=function(t,n){var e=t,r=n;r===void 0&&(r=e.y,e=e.x);var o=parseFloat(e),a=parseFloat(r);return this.derive(this.x+o,this.y+a)},t.mul=function(t,n){var e=n;return e===void 0&&(e=t),this.derive(this.x*t,this.y*e)},t.div=function(t,n){var e=n;return e===void 0&&(e=t),this.derive(this.x*1/t,this.y*1/e)},t.sub=function(t,n){return arguments.length===1?this.add(t.mul(-1)):this.add(-t,-n)},t.distanceTo=function(t){return this.sub(t).magnitude()},t.magnitude=function(){return Math.sqrt(this.x*this.x+this.y*this.y)},t.rotate=function(t){return this.derive(this.x*Math.cos(t)-this.y*Math.sin(t),this.x*Math.sin(t)+this.y*Math.cos(t))},e})();i.default=e}),66);
__d("BlueBar",["csx","CSS","DOMQuery","Style","ge"],(function(t,n,r,o,a,i,l,s){var e=document,u={};function c(t){return o("DOMQuery").scry(e,t)[0]}function d(e,t){return u[e]?u[e]:u[e]=c(t)}function m(){e=r("ge")("blueBarDOMInspector")||document,u={}}function p(){var e=g();return e?o("CSS").matchesSelector(e,"._5rmj")||r("Style").isFixed(e):!1}function _(){return d("bar","div._1s4v")}function f(){return d("navRoot","div._cx4")||_()}function g(){return d("maybeFixedRoot","div._26aw")}function h(){return d("maybeFixedRootLoggedOut","div._1pmx")}function y(){return d("maybeFixedRootLogin","div._53jh")}m(),l.hasFixedBlueBar=p,l.getBar=_,l.getNavRoot=f,l.getMaybeFixedRoot=g,l.getLoggedOutRoot=h,l.getNewLoggedOutRoot=y}),98);
__d("getUnboundedScrollPosition",["Scroll"],(function(t,n,r,o,a,i){"use strict";function e(e){if(e===window){var t,r;return{x:(t=window.pageXOffset)!=null?t:n("Scroll").getLeft(document.documentElement),y:(r=window.pageYOffset)!=null?r:n("Scroll").getTop(document.documentElement)}}return{x:n("Scroll").getLeft(e),y:n("Scroll").getTop(e)}}a.exports=e}),null);
__d("DOMVector",["BasicVector","FBLogger","getDocumentScrollElement","getElementPosition","getUnboundedScrollPosition","getViewportDimensions"],(function(t,n,r,o,a,i,l){var e=(function(e){function t(t,n,r){var o;return o=e.call(this,t,n)||this,o.domain=r||"pure",o}babelHelpers.inheritsLoose(t,e);var n=t.prototype;return n.derive=function(n,r,o){return new t(n,r,o||this.domain)},n.add=function(r,o){var n=r;return n instanceof t&&n.getDomain()!=="pure"&&(n=n.convertTo(this.domain)),e.prototype.add.call(this,n,o)},n.convertTo=function(n){if(n!="pure"&&n!="viewport"&&n!="document")return r("FBLogger")("DOMVector").mustfix("Domain %s is invalid; valid coordinate domains are pure, viewport, and document.",n),this.derive(0,0);if(n==this.domain)return this.derive(this.x,this.y,this.domain);if(n=="pure")return this.derive(this.x,this.y);if(this.domain=="pure")return r("FBLogger")("DOMVector").mustfix("Unable to covert a pure vector to %s coordinates; a pure vector is abstract and does not exist in any document coordinate system. If you need to hack around this, create the vector explicitly in some document coordinate domain, by passing a third argument to the constructor. But you probably don't, and are just using the class wrong. Stop doing that.",n),this.derive(0,0);var e=t.getScrollPosition("document"),o=this.x,a=this.y;return this.domain=="document"?(o-=e.x,a-=e.y):(o+=e.x,a+=e.y),this.derive(o,a,n)},n.getDomain=function(){return this.domain},t.from=function(n,r,o){return new t(n,r,o)},t.getScrollPosition=function(t){var e=t||"document",n=r("getUnboundedScrollPosition")(window);return this.from(n.x,n.y,"document").convertTo(e)},t.getElementPosition=function(t,n){var e=n||"document",o=r("getElementPosition")(t);return this.from(o.x,o.y,"viewport").convertTo(e)},t.getElementDimensions=function(t){return this.from(t.offsetWidth||0,t.offsetHeight||0)},t.getViewportDimensions=function(){var e=r("getViewportDimensions")();return this.from(e.width,e.height,"viewport")},t.getLayoutViewportDimensions=function(){var e=r("getViewportDimensions").layout();return this.from(e.width,e.height,"viewport")},t.getViewportWithoutScrollbarDimensions=function(){var e=r("getViewportDimensions").withoutScrollbars();return this.from(e.width,e.height,"viewport")},t.getDocumentDimensions=function(t){var e=r("getDocumentScrollElement")(t);return this.from(e.scrollWidth,e.scrollHeight,"document")},t})(r("BasicVector"));l.default=e}),98);
__d("PageHooks",["Arbiter","ErrorUtils","InitialJSLoader","PageEvents"],(function(t,n,r,o,a,i){var e,l={DOMREADY_HOOK:"domreadyhooks",ONLOAD_HOOK:"onloadhooks"};function s(){d(_.DOMREADY_HOOK),window.domready=!0,n("Arbiter").inform("uipage_onload",!0,"state")}function u(){d(_.ONLOAD_HOOK),window.loaded=!0}function c(t,r){return(e||(e=n("ErrorUtils"))).applyWithGuard(t,null,null,function(e){e.event_type=r,e.category="runhook"},"PageHooks:"+r)}function d(e){var t=e=="onbeforeleavehooks"||e=="onbeforeunloadhooks";do{var n=window[e];if(!n)break;t||(window[e]=null);for(var r=0;r<n.length;r++){var o=c(n[r],e);if(t&&o)return o}}while(!t&&window[e])}function m(){window.domready||(window.domready=!0,d("onloadhooks")),window.loaded||(window.loaded=!0,d("onafterloadhooks"))}function p(){var e,t;(e=n("Arbiter")).registerCallback(s,[(t=n("PageEvents")).BIGPIPE_DOMREADY,n("InitialJSLoader").INITIAL_JS_READY]),e.registerCallback(u,[t.BIGPIPE_DOMREADY,t.BIGPIPE_ONLOAD,n("InitialJSLoader").INITIAL_JS_READY]),e.subscribe(t.NATIVE_ONBEFOREUNLOAD,function(e,t){t.warn=d("onbeforeleavehooks")||d("onbeforeunloadhooks"),t.warn||(window.domready=!1,window.loaded=!1)},"new"),e.subscribe(t.NATIVE_ONUNLOAD,function(e,t){d("onunloadhooks"),d("onafterunloadhooks")},"new")}var _=babelHelpers.extends({_domreadyHook:s,_onloadHook:u,runHook:c,runHooks:d,keepWindowSetAsLoaded:m},l);p(),t.PageHooks=a.exports=_}),null);
__d("Vector",["DOMEvent","DOMVector","Scroll","getDocumentScrollElement"],(function(t,n,r,o,a,i,l){var e=(function(e){function t(t,n,r){return e.call(this,parseFloat(t),parseFloat(n),r)||this}babelHelpers.inheritsLoose(t,e);var n=t.prototype;return n.derive=function(n,r,o){return new t(n,r,o||this.domain)},n.setElementPosition=function(t){var e=this.convertTo("document");return t.style.left=parseInt(e.x,10)+"px",t.style.top=parseInt(e.y,10)+"px",this},n.setElementDimensions=function(t){return this.setElementWidth(t).setElementHeight(t)},n.setElementWidth=function(t){return t.style.width=parseInt(this.x,10)+"px",this},n.setElementHeight=function(t){return t.style.height=parseInt(this.y,10)+"px",this},n.scrollElementBy=function(t){if(t==document.body)window.scrollBy(this.x,this.y);else{var e;(e=o("Scroll")).setLeft(t,e.getLeft(t)+this.x),e.setTop(t,e.getTop(t)+this.y)}return this},t.from=function(n,r,o){return new t(n,r,o)},t.getEventPosition=function(t,n){n===void 0&&(n="document");var e=new(r("DOMEvent"))(t).event,a=r("getDocumentScrollElement")(),i=e.clientX+o("Scroll").getLeft(a),l=e.clientY+o("Scroll").getTop(a),s=this.from(i,l,"document");return s.convertTo(n)},t.getTouchEventPosition=function(t,n){n===void 0&&(n="document");var e=t.touches[0],r=this.from(e.pageX,e.pageY,"document");return r.convertTo(n)},t.deserialize=function(t){var e=t.split(",");return this.from(e[0],e[1])},t})(r("DOMVector"));l.default=e}),98);
__d("ViewportBounds",["Arbiter","ArbiterMixin","BlueBar","ExecutionEnvironment","PageEvents","Vector","emptyFunction","removeFromArray"],(function(t,n,r,o,a,i,l){var e,s={top:[],right:[],bottom:[],left:[]};function u(e){return function(){return s[e].reduce(function(e,t){return Math.max(e,t.getSize())},0)}}function c(e,t){return function(n){return new d(e,n,t)}}var d=(function(){function e(e,t,n){n===void 0&&(n=!1),this.getSide=r("emptyFunction").thatReturns(e),this.getSize=function(){return typeof t=="function"?t():t},this.isPersistent=r("emptyFunction").thatReturns(n),s[e].push(this),m.inform("change")}var t=e.prototype;return t.remove=function(){r("removeFromArray")(s[this.getSide()],this),m.inform("change")},e})();r("Arbiter").subscribe(r("PageEvents").AJAXPIPE_ONUNLOAD,function(){["top","right","bottom","left"].forEach(function(e){for(var t=s[e],n=t.length-1;n>=0;n--){var r=t[n];r.isPersistent()||r.remove()}})});var m=babelHelpers.extends({},r("ArbiterMixin"),{getTop:u("top"),getRight:u("right"),getBottom:u("bottom"),getLeft:u("left"),getElementPosition:function(t){var e=r("Vector").getElementPosition(t);return e.y-=m.getTop(),e},addTop:c("top"),addRight:c("right"),addBottom:c("bottom"),addLeft:c("left"),addPersistentTop:c("top",!0),addPersistentRight:c("right",!0),addPersistentBottom:c("bottom",!0),addPersistentLeft:c("left",!0)});m.addPersistentTop(function(){if((e||(e=r("ExecutionEnvironment"))).canUseDOM&&o("BlueBar").hasFixedBlueBar()){var t=o("BlueBar").getMaybeFixedRoot();return t?t.offsetHeight:0}return 0});var p=m;l.default=p}),98);