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8 |
"use strict";angular.module("mgcrea.ngStrap.affix",["mgcrea.ngStrap.helpers.dimensions","mgcrea.ngStrap.helpers.debounce"]).provider("$affix",function(){var t=this.defaults={offsetTop:"auto"};this.$get=["$window","debounce","dimensions",function(e,o,n){function f(f,r){function c(t,e,o){var n=a(),f=l();return P>=n?"top":null!==t&&n+t<=e.top?"middle":null!==$&&e.top+o+h>=f-$?"bottom":"middle"}function a(){return d[0]===e?e.pageYOffset:d[0]===e}function l(){return d[0]===e?e.document.body.scrollHeight:d[0].scrollHeight}var u={},p=angular.extend({},t,r),d=p.target,m="affix affix-top affix-bottom",h=0,g=0,P=0,$=0,v=null,T=null,x=f.parent();if(p.offsetParent)if(p.offsetParent.match(/^\d+$/))for(var b=0;b<1*p.offsetParent-1;b++)x=x.parent();else x=angular.element(p.offsetParent);return u.init=function(){u.$parseOffsets(),g=n.offset(f[0]).top+h,d.on("scroll",u.checkPosition),d.on("click",u.checkPositionWithEventLoop),i.on("resize",u.$debouncedOnResize),u.checkPosition(),u.checkPositionWithEventLoop()},u.destroy=function(){d.off("scroll",u.checkPosition),d.off("click",u.checkPositionWithEventLoop),i.off("resize",u.$debouncedOnResize)},u.checkPositionWithEventLoop=function(){setTimeout(u.checkPosition,1)},u.checkPosition=function(){var t=a(),e=n.offset(f[0]),o=n.height(f[0]),i=c(T,e,o);v!==i&&(v=i,f.removeClass(m).addClass("affix"+("middle"!==i?"-"+i:"")),"top"===i?(T=null,f.css("position",p.offsetParent?"":"relative"),f.css("top","")):"bottom"===i?(T=p.offsetUnpin?-(1*p.offsetUnpin):e.top-t,f.css("position",p.offsetParent?"":"relative"),f.css("top",p.offsetParent?"":s[0].offsetHeight-$-o-g+"px")):(T=null,f.css("position","fixed"),f.css("top",h+"px")))},u.$onResize=function(){u.$parseOffsets(),u.checkPosition()},u.$debouncedOnResize=o(u.$onResize,50),u.$parseOffsets=function(){f.css("position",p.offsetParent?"":"relative"),p.offsetTop&&("auto"===p.offsetTop&&(p.offsetTop="+0"),p.offsetTop.match(/^[-+]\d+$/)?(h=1*-p.offsetTop,P=p.offsetParent?n.offset(x[0]).top+1*p.offsetTop:n.offset(f[0]).top-n.css(f[0],"marginTop",!0)+1*p.offsetTop):P=1*p.offsetTop),p.offsetBottom&&($=p.offsetParent&&p.offsetBottom.match(/^[-+]\d+$/)?l()-(n.offset(x[0]).top+n.height(x[0]))+1*p.offsetBottom+1:1*p.offsetBottom)},u.init(),u}var s=angular.element(e.document.body),i=angular.element(e);return f}]}).directive("bsAffix",["$affix","$window",function(t,e){return{restrict:"EAC",require:"^?bsAffixTarget",link:function(o,n,f,s){var i={scope:o,offsetTop:"auto",target:s?s.$element:angular.element(e)};angular.forEach(["offsetTop","offsetBottom","offsetParent","offsetUnpin"],function(t){angular.isDefined(f[t])&&(i[t]=f[t])});var r=t(n,i);o.$on("$destroy",function(){i=null,r=null})}}}]).directive("bsAffixTarget",function(){return{controller:["$element",function(t){this.$element=t}]}}); |
