pgadmin4/web/pgadmin/static/vendor/backbone/backbone.paginator.min.js

/*
  backbone.paginator
  http://github.com/backbone-paginator/backbone.paginator

  Copyright (c) 2016 Jimmy Yuen Ho Wong and contributors
  Licensed under the MIT @license.
*/
!function(a){if("object"==typeof exports&&"function"==typeof require)module.exports=a(require("underscore"),require("backbone"));else if("function"==typeof define&&define.amd)define(["underscore","backbone"],a);else if("undefined"!=typeof _&&"undefined"!=typeof Backbone){var b=Backbone.PageableCollection,c=a(_,Backbone);Backbone.PageableCollection.noConflict=function(){return Backbone.PageableCollection=b,c}}}(function(a,b){"use strict";function c(b,c){if(!a.isNumber(b)||a.isNaN(b)||!a.isFinite(b)||~~b!==b)throw new TypeError("`"+c+"` must be a finite integer");return b}function d(a){for(var b,c,d,e,f={},g=decodeURIComponent,h=a.split("&"),i=0,j=h.length;j>i;i++){var k=h[i];b=k.split("="),c=b[0],d=b[1],null==d&&(d=!0),c=g(c),d=g(d),e=f[c],o(e)?e.push(d):e?f[c]=[e,d]:f[c]=d}return f}function e(a,b,c){var d=a._events[b];if(d&&d.length){var e=d[d.length-1],f=e.callback;e.callback=function(){try{f.apply(this,arguments),c()}catch(a){throw a}finally{e.callback=f}}}else c()}var f=a.extend,g=a.omit,h=a.clone,i=a.each,j=a.pick,k=a.contains,l=a.isEmpty,m=a.pairs,n=a.invert,o=a.isArray,p=a.isFunction,q=a.isObject,r=a.keys,s=a.isUndefined,t=Math.ceil,u=Math.floor,v=Math.max,w=b.Collection.prototype,x=/[\s'"]/g,y=/[<>\s'"]/g,z=b.PageableCollection=b.Collection.extend({state:{firstPage:1,lastPage:null,currentPage:null,pageSize:25,totalPages:null,totalRecords:null,sortKey:null,order:-1},mode:"server",queryParams:{currentPage:"page",pageSize:"per_page",totalPages:"total_pages",totalRecords:"total_entries",sortKey:"sort_by",order:"order",directions:{"-1":"asc",1:"desc"}},constructor:function(a,b){w.constructor.apply(this,arguments),b=b||{};var c=this.mode=b.mode||this.mode||A.mode,d=f({},A.queryParams,this.queryParams,b.queryParams||{});d.directions=f({},A.queryParams.directions,this.queryParams.directions,d.directions||{}),this.queryParams=d;var e=this.state=f({},A.state,this.state,b.state||{});e.currentPage=null==e.currentPage?e.firstPage:e.currentPage,o(a)||(a=a?[a]:[]),a=a.slice(),"server"==c||null!=e.totalRecords||l(a)||(e.totalRecords=a.length),this.switchMode(c,f({fetch:!1,resetState:!1,models:a},b));var g=b.comparator;if(e.sortKey&&!g&&this.setSorting(e.sortKey,e.order,b),"server"!=c){var i=this.fullCollection;g&&b.full&&(this.comparator=null,i.comparator=g),b.full&&i.sort(),a&&!l(a)&&(this.reset(a,f({silent:!0},b)),this.getPage(e.currentPage),a.splice.apply(a,[0,a.length].concat(this.models)))}this._initState=h(this.state)},_makeFullCollection:function(a,c){var d,e,f,g=["url","model","sync","comparator"],h=this.constructor.prototype,i={};for(d=0,e=g.length;e>d;d++)f=g[d],s(h[f])||(i[f]=h[f]);var j=new(b.Collection.extend(i))(a,c);for(d=0,e=g.length;e>d;d++)f=g[d],this[f]!==h[f]&&(j[f]=this[f]);return j},_makeCollectionEventHandler:function(a,b){return function(c,d,g,j){var k=a._handlers;i(r(k),function(c){var d=k[c];a.off(c,d),b.off(c,d)});var l=h(a.state),m=l.firstPage,n=0===m?l.currentPage:l.currentPage-1,o=l.pageSize,p=n*o,q=p+o;if("add"==c){var u,v,w,x,j=j||{};if(g==b)v=b.indexOf(d),v>=p&&q>v&&(x=a,u=w=v-p);else{u=a.indexOf(d),v=p+u,x=b;var w=s(j.at)?v:j.at+p}if(j.onRemove||(++l.totalRecords,delete j.onRemove),a.state=a._checkState(l),x){x.add(d,f({},j||{},{at:w}));var y=u>=o?d:!s(j.at)&&q>w&&a.length>o?a.at(o):null;y&&e(g,c,function(){a.remove(y,{onAdd:!0})})}}if("remove"==c)if(j.onAdd)delete j.onAdd;else{if(--l.totalRecords){var z=l.totalPages=t(l.totalRecords/o);l.lastPage=0===m?z-1:z||m,l.currentPage>z&&(l.currentPage=l.lastPage)}else l.totalRecords=null,l.totalPages=null;a.state=a._checkState(l);var A,B=j.index;g==a?((A=b.at(q))?e(a,c,function(){a.push(A,{onRemove:!0})}):!a.length&&l.totalRecords&&a.reset(b.models.slice(p-o,q-o),f({},j,{parse:!1})),b.remove(d)):B>=p&&q>B&&((A=b.at(q-1))&&e(a,c,function(){a.push(A,{onRemove:!0})}),a.remove(d),!a.length&&l.totalRecords&&a.reset(b.models.slice(p-o,q-o),f({},j,{parse:!1})))}if("reset"==c)if(j=g,g=d,g==a&&null==j.from&&null==j.to){var C=b.models.slice(0,p),D=b.models.slice(p+a.models.length);b.reset(C.concat(a.models).concat(D),j)}else g==b&&((l.totalRecords=b.models.length