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mirror of https://github.com/twbs/bootstrap.git synced 2024-12-10 22:24:19 +01:00
Bootstrap/assets/js/vendor/popper.min.js
2017-07-04 10:37:44 +02:00

6 lines
18 KiB
JavaScript

/*
Copyright (C) Federico Zivolo 2017
Distributed under the MIT License (license terms are at http://opensource.org/licenses/MIT).
*/(function(e,t){'object'==typeof exports&&'undefined'!=typeof module?module.exports=t():'function'==typeof define&&define.amd?define(t):e.Popper=t()})(this,function(){'use strict';function e(e){return e&&'[object Function]'==={}.toString.call(e)}function t(e,t){if(1!==e.nodeType)return[];var o=window.getComputedStyle(e,null);return t?o[t]:o}function o(e){return'HTML'===e.nodeName?e:e.parentNode||e.host}function n(e){if(!e||-1!==['HTML','BODY','#document'].indexOf(e.nodeName))return window.document.body;var i=t(e),r=i.overflow,p=i.overflowX,s=i.overflowY;return /(auto|scroll)/.test(r+s+p)?e:n(o(e))}function r(e){var t=e.nodeName;return'BODY'!==t&&('HTML'===t||e.firstElementChild.offsetParent===e)}function p(e){return null===e.parentNode?e:p(e.parentNode)}function s(e){var t=e&&e.offsetParent,o=t&&t.nodeName;return o&&'BODY'!==o&&'HTML'!==o?t:window.document.documentElement}function d(e,t){if(!e||!e.nodeType||!t||!t.nodeType)return window.document.documentElement;var 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I(e,t){return window.removeEventListener('resize',t.updateBound),t.scrollParents.forEach(function(e){e.removeEventListener('scroll',t.updateBound)}),t.updateBound=null,t.scrollParents=[],t.scrollElement=null,t.eventsEnabled=!1,t}function M(){this.state.eventsEnabled&&(window.cancelAnimationFrame(this.scheduleUpdate),this.state=I(this.reference,this.state))}function R(e){return''!==e&&!isNaN(parseFloat(e))&&isFinite(e)}function U(e,t){Object.keys(t).forEach(function(o){var i='';-1!==['width','height','top','right','bottom','left'].indexOf(o)&&R(t[o])&&(i='px'),e.style[o]=t[o]+i})}function Y(e,t){Object.keys(t).forEach(function(o){var i=t[o];!1===i?e.removeAttribute(o):e.setAttribute(o,t[o])})}function F(e,t,o){var i=C(e,function(e){var o=e.name;return o===t}),n=!!i&&e.some(function(e){return e.name===o&&e.enabled&&e.order<i.order});if(!n){var r='`'+t+'`';console.warn('`'+o+'`'+' modifier is required by '+r+' modifier in order to work, be sure to include it before '+r+'!')}return n}function j(e){return'end'===e?'start':'start'===e?'end':e}function q(e){var t=1<arguments.length&&void 0!==arguments[1]&&arguments[1],o=ae.indexOf(e),i=ae.slice(o+1).concat(ae.slice(0,o));return t?i.reverse():i}function K(e,t,o,i){var n=e.match(/((?:\-|\+)?\d*\.?\d*)(.*)/),r=+n[1],p=n[2];if(!r)return e;if(0===p.indexOf('%')){var s;switch(p){case'%p':s=o;break;case'%':case'%r':default:s=i;}var d=c(s);return d[t]/100*r}if('vh'===p||'vw'===p){var a;return a='vh'===p?V(document.documentElement.clientHeight,window.innerHeight||0):V(document.documentElement.clientWidth,window.innerWidth||0),a/100*r}return r}function G(e,t,o,i){var n=[0,0],r=-1!==['right','left'].indexOf(i),p=e.split(/(\+|\-)/).map(function(e){return e.trim()}),s=p.indexOf(C(p,function(e){return-1!==e.search(/,|\s/)}));p[s]&&-1===p[s].indexOf(',')&&console.warn('Offsets separated by white space(s) are deprecated, use a comma (,) instead.');var d=/\s*,\s*|\s+/,a=-1===s?[p]:[p.slice(0,s).concat([p[s].split(d)[0]]),[p[s].split(d)[1]].concat(p.slice(s+1))];return a=a.map(function(e,i){var n=(1===i?!r:r)?'height':'width',p=!1;return e.reduce(function(e,t){return''===e[e.length-1]&&-1!==['+','-'].indexOf(t)?(e[e.length-1]=t,p=!0,e):p?(e[e.length-1]+=t,p=!1,e):e.concat(t)},[]).map(function(e){return K(e,n,t,o)})}),a.forEach(function(e,t){e.forEach(function(o,i){R(o)&&(n[t]+=o*('-'===e[i-1]?-1:1))})}),n}for(var z=Math.min,_=Math.floor,V=Math.max,X=['native code','[object MutationObserverConstructor]'],J=function(e){return X.some(function(t){return-1<(e||'').toString().indexOf(t)})},Z='undefined'!=typeof window,$=['Edge','Trident','Firefox'],Q=0,ee=0;ee<$.length;ee+=1)if(Z&&0<=navigator.userAgent.indexOf($[ee])){Q=1;break}var i,te=Z&&J(window.MutationObserver),oe=te?function(e){var t=!1,o=0,i=document.createElement('span'),n=new MutationObserver(function(){e(),t=!1});return n.observe(i,{attributes:!0}),function(){t||(t=!0,i.setAttribute('x-index',o),++o)}}:function(e){var t=!1;return function(){t||(t=!0,setTimeout(function(){t=!1,e()},Q))}},ie=function(){return void 0==i&&(i=-1!==navigator.appVersion.indexOf('MSIE 10')),i},ne=function(e,t){if(!(e instanceof t))throw new TypeError('Cannot call a class as a function')},re=function(){function e(e,t){for(var o,n=0;n<t.length;n++)o=t[n],o.enumerable=o.enumerable||!1,o.configurable=!0,'value'in o&&(o.writable=!0),Object.defineProperty(e,o.key,o)}return function(t,o,i){return o&&e(t.prototype,o),i&&e(t,i),t}}(),pe=function(e,t,o){return t in e?Object.defineProperty(e,t,{value:o,enumerable:!0,configurable:!0,writable:!0}):e[t]=o,e},se=Object.assign||function(e){for(var t,o=1;o<arguments.length;o++)for(var i in t=arguments[o],t)Object.prototype.hasOwnProperty.call(t,i)&&(e[i]=t[i]);return e},de=['auto-start','auto','auto-end','top-start','top','top-end','right-start','right','right-end','bottom-end','bottom','bottom-start','left-end','left','left-start'],ae=de.slice(3),fe={FLIP:'flip',CLOCKWISE:'clockwise',COUNTERCLOCKWISE:'counterclockwise'},le=function(){function t(o,i){var n=this,r=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};ne(this,t),this.scheduleUpdate=function(){return requestAnimationFrame(n.update)},this.update=oe(this.update.bind(this)),this.options=se({},t.Defaults,r),this.state={isDestroyed:!1,isCreated:!1,scrollParents:[]},this.reference=o.jquery?o[0]:o,this.popper=i.jquery?i[0]:i,this.options.modifiers={},Object.keys(se({},t.Defaults.modifiers,r.modifiers)).forEach(function(e){n.options.modifiers[e]=se({},t.Defaults.modifiers[e]||{},r.modifiers?r.modifiers[e]:{})}),this.modifiers=Object.keys(this.options.modifiers).map(function(e){return se({name:e},n.options.modifiers[e])}).sort(function(e,t){return e.order-t.order}),this.modifiers.forEach(function(t){t.enabled&&e(t.onLoad)&&t.onLoad(n.reference,n.popper,n.options,t,n.state)}),this.update();var p=this.options.eventsEnabled;p&&this.enableEventListeners(),this.state.eventsEnabled=p}return re(t,[{key:'update',value:function(){return k.call(this)}},{key:'destroy',value:function(){return P.call(this)}},{key:'enableEventListeners',value:function(){return A.call(this)}},{key:'disableEventListeners',value:function(){return M.call(this)}}]),t}();return le.Utils=('undefined'==typeof window?global:window).PopperUtils,le.placements=de,le.Defaults={placement:'bottom',eventsEnabled:!0,removeOnDestroy:!1,onCreate:function(){},onUpdate:function(){},modifiers:{shift:{order:100,enabled:!0,fn:function(e){var t=e.placement,o=t.split('-')[0],i=t.split('-')[1];if(i){var n=e.offsets,r=n.reference,p=n.popper,s=-1!==['bottom','top'].indexOf(o),d=s?'left':'top',a=s?'width':'height',f={start:pe({},d,r[d]),end:pe({},d,r[d]+r[a]-p[a])};e.offsets.popper=se({},p,f[i])}return e}},offset:{order:200,enabled:!0,fn:function(e,t){var o,i=t.offset,n=e.placement,r=e.offsets,p=r.popper,s=r.reference,d=n.split('-')[0];return o=R(+i)?[+i,0]:G(i,p,s,d),'left'===d?(p.top+=o[0],p.left-=o[1]):'right'===d?(p.top+=o[0],p.left+=o[1]):'top'===d?(p.left+=o[0],p.top-=o[1]):'bottom'===d&&(p.left+=o[0],p.top+=o[1]),e.popper=p,e},offset:0},preventOverflow:{order:300,enabled:!0,fn:function(e,t){var o=t.boundariesElement||s(e.instance.popper);e.instance.reference===o&&(o=s(o));var i=w(e.instance.popper,e.instance.reference,t.padding,o);t.boundaries=i;var n=t.priority,r=e.offsets.popper,p={primary:function(e){var o=r[e];return r[e]<i[e]&&!t.escapeWithReference&&(o=V(r[e],i[e])),pe({},e,o)},secondary:function(e){var o='right'===e?'left':'top',n=r[o];return r[e]>i[e]&&!t.escapeWithReference&&(n=z(r[o],i[e]-('right'===e?r.width:r.height))),pe({},o,n)}};return n.forEach(function(e){var t=-1===['left','top'].indexOf(e)?'secondary':'primary';r=se({},r,p[t](e))}),e.offsets.popper=r,e},priority:['left','right','top','bottom'],padding:5,boundariesElement:'scrollParent'},keepTogether:{order:400,enabled:!0,fn:function(e){var t=e.offsets,o=t.popper,i=t.reference,n=e.placement.split('-')[0],r=_,p=-1!==['top','bottom'].indexOf(n),s=p?'right':'bottom',d=p?'left':'top',a=p?'width':'height';return o[s]<r(i[d])&&(e.offsets.popper[d]=r(i[d])-o[a]),o[d]>r(i[s])&&(e.offsets.popper[d]=r(i[s])),e}},arrow:{order:500,enabled:!0,fn:function(e,t){if(!F(e.instance.modifiers,'arrow','keepTogether'))return e;var o=t.element;if('string'==typeof o){if(o=e.instance.popper.querySelector(o),!o)return e;}else if(!e.instance.popper.contains(o))return console.warn('WARNING: `arrow.element` must be child of its popper element!'),e;var i=e.placement.split('-')[0],n=e.offsets,r=n.popper,p=n.reference,s=-1!==['left','right'].indexOf(i),d=s?'height':'width',a=s?'top':'left',f=s?'left':'top',l=s?'bottom':'right',m=O(o)[d];p[l]-m<r[a]&&(e.offsets.popper[a]-=r[a]-(p[l]-m)),p[a]+m>r[l]&&(e.offsets.popper[a]+=p[a]+m-r[l]);var h=p[a]+p[d]/2-m/2,g=h-c(e.offsets.popper)[a];return g=V(z(r[d]-m,g),0),e.arrowElement=o,e.offsets.arrow={},e.offsets.arrow[a]=Math.round(g),e.offsets.arrow[f]='',e},element:'[x-arrow]'},flip:{order:600,enabled:!0,fn:function(e,t){if(W(e.instance.modifiers,'inner'))return e;if(e.flipped&&e.placement===e.originalPlacement)return e;var o=w(e.instance.popper,e.instance.reference,t.padding,t.boundariesElement),i=e.placement.split('-')[0],n=L(i),r=e.placement.split('-')[1]||'',p=[];switch(t.behavior){case fe.FLIP:p=[i,n];break;case fe.CLOCKWISE:p=q(i);break;case fe.COUNTERCLOCKWISE:p=q(i,!0);break;default:p=t.behavior;}return p.forEach(function(s,d){if(i!==s||p.length===d+1)return e;i=e.placement.split('-')[0],n=L(i);var a=e.offsets.popper,f=e.offsets.reference,l=_,m='left'===i&&l(a.right)>l(f.left)||'right'===i&&l(a.left)<l(f.right)||'top'===i&&l(a.bottom)>l(f.top)||'bottom'===i&&l(a.top)<l(f.bottom),h=l(a.left)<l(o.left),c=l(a.right)>l(o.right),g=l(a.top)<l(o.top),u=l(a.bottom)>l(o.bottom),b='left'===i&&h||'right'===i&&c||'top'===i&&g||'bottom'===i&&u,y=-1!==['top','bottom'].indexOf(i),w=!!t.flipVariations&&(y&&'start'===r&&h||y&&'end'===r&&c||!y&&'start'===r&&g||!y&&'end'===r&&u);(m||b||w)&&(e.flipped=!0,(m||b)&&(i=p[d+1]),w&&(r=j(r)),e.placement=i+(r?'-'+r:''),e.offsets.popper=se({},e.offsets.popper,S(e.instance.popper,e.offsets.reference,e.placement)),e=N(e.instance.modifiers,e,'flip'))}),e},behavior:'flip',padding:5,boundariesElement:'viewport'},inner:{order:700,enabled:!1,fn:function(e){var t=e.placement,o=t.split('-')[0],i=e.offsets,n=i.popper,r=i.reference,p=-1!==['left','right'].indexOf(o),s=-1===['top','left'].indexOf(o);return n[p?'left':'top']=r[t]-(s?n[p?'width':'height']:0),e.placement=L(t),e.offsets.popper=c(n),e}},hide:{order:800,enabled:!0,fn:function(e){if(!F(e.instance.modifiers,'hide','preventOverflow'))return e;var t=e.offsets.reference,o=C(e.instance.modifiers,function(e){return'preventOverflow'===e.name}).boundaries;if(t.bottom<o.top||t.left>o.right||t.top>o.bottom||t.right<o.left){if(!0===e.hide)return e;e.hide=!0,e.attributes['x-out-of-boundaries']=''}else{if(!1===e.hide)return e;e.hide=!1,e.attributes['x-out-of-boundaries']=!1}return e}},computeStyle:{order:850,enabled:!0,fn:function(e,t){var o=t.x,i=t.y,n=e.offsets.popper,r=C(e.instance.modifiers,function(e){return'applyStyle'===e.name}).gpuAcceleration;void 0!==r&&console.warn('WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!');var p,d,a=void 0===r?t.gpuAcceleration:r,f=s(e.instance.popper),l=g(f),m={position:n.position},h={left:_(n.left),top:_(n.top),bottom:_(n.bottom),right:_(n.right)},c='bottom'===o?'top':'bottom',u='right'===i?'left':'right',b=B('transform');if(d='bottom'==c?-l.height+h.bottom:h.top,p='right'==u?-l.width+h.right:h.left,a&&b)m[b]='translate3d('+p+'px, '+d+'px, 0)',m[c]=0,m[u]=0,m.willChange='transform';else{var y='bottom'==c?-1:1,w='right'==u?-1:1;m[c]=d*y,m[u]=p*w,m.willChange=c+', '+u}var v={"x-placement":e.placement};return e.attributes=se({},v,e.attributes),e.styles=se({},m,e.styles),e},gpuAcceleration:!0,x:'bottom',y:'right'},applyStyle:{order:900,enabled:!0,fn:function(e){return U(e.instance.popper,e.styles),Y(e.instance.popper,e.attributes),e.offsets.arrow&&U(e.arrowElement,e.offsets.arrow),e},onLoad:function(e,t,o,i,n){var r=x(n,t,e),p=E(o.placement,r,t,e,o.modifiers.flip.boundariesElement,o.modifiers.flip.padding);return t.setAttribute('x-placement',p),U(t,{position:'absolute'}),o},gpuAcceleration:void 0}}},le});
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