/*
YUI 3.17.2 (build 9c3c78e)
Copyright 2014 Yahoo! Inc. All rights reserved.
Licensed under the BSD License.
http://yuilibrary.com/license/
*/

YUI.add("plugin",function(e,t){function n(t){!this.hasImpl||!this.hasImpl(e.Plugin.Base)?n.superclass.constructor.apply(this,arguments):n.prototype.initializer.apply(this,arguments)}n.ATTRS={host:{writeOnce:!0}},n.NAME="plugin",n.NS="plugin",e.extend(n,e.Base,{_handles:null,initializer:function(e){this._handles=[]},destructor:function(){if(this._handles)for(var e=0,t=this._handles.length;e<t;e++)this._handles[e].detach()},doBefore:function(e,t,n){var r=this.get("host"),i;return e in r?i=this.beforeHostMethod(e,t,n):r.on&&(i=this.onHostEvent(e,t,n)),i},doAfter:function(e,t,n){var r=this.get("host"),i;return e in r?i=this.afterHostMethod(e,t,n):r.after&&(i=this.afterHostEvent(e,t,n)),i},onHostEvent:function(e,t,n){var r=this.get("host").on(e,t,n||this);return this._handles.push(r),r},onceHostEvent:function(e,t,n){var r=this.get("host").once(e,t,n||this);return this._handles.push(r),r},afterHostEvent:function(e,t,n){var r=this.get("host").after(e,t,n||this);return this._handles.push(r),r},onceAfterHostEvent:function(e,t,n){var r=this.get("host").onceAfter(e,t,n||this);return this._handles.push(r),r},beforeHostMethod:function(t,n,r){var i=e.Do.before(n,this.get("host"),t,r||this);return this._handles.push(i),i},afterHostMethod:function(t,n,r){var i=e.Do.after(n,this.get("host"),t,r||this);return this._handles.push(i),i},toString:function(){return this.constructor.NAME+"["+this.constructor.NS+"]"}}),e.namespace("Plugin").Base=n},"3.17.2",{requires:["base-base"]});
YUI.add("moodle-core-lockscroll",function(e,t){e.namespace("M.core").LockScroll=e.Base.create("lockScroll",e.Plugin.Base,[],{_enabled:!1,destructor:function(){this.disableScrollLock()},enableScrollLock:function(t){if(this.isActive())return;if(!this.shouldLockScroll(t))return;this._enabled=!0;var n=e.one(e.config.doc.body),r=n.getComputedStyle("width");n.addClass("lockscroll");var i=parseInt(n.getAttribute("data-activeScrollLocks"),10)||0,s=i+1;return n.setAttribute("data-activeScrollLocks",s),i===0&&n.setStyle("maxWidth",r),this},shouldLockScroll:function(t){var n=this.get("host").get("boundingBox").get("region").height,r=e.config.win.innerHeight||e.config.doc.documentElement.clientHeight||0;return!t&&n>r-10?!1:!0},updateScrollLock:function(e){return this.shouldLockScroll(e)?this.enableScrollLock(e):this.disableScrollLock(!0),this},disableScrollLock:function(t){if(this.isActive()){this._enabled=!1;var n=e.one(e.config.doc.body),r=parseInt(n.getAttribute("data-activeScrollLocks"),10)||1,i=r-1;if(t||r===1)n.removeClass("lockscroll"),n.setStyle("maxWidth",null);n.setAttribute("data-activeScrollLocks",r-1)}return this},isActive:function(){return this._enabled}},{NS:"lockScroll",ATTRS:{}})},"@VERSION@",{requires:["plugin","base-build"]});