https://rentingwell.com/v2/wp-content/themes/renting-well/assets/js/vendor.js?ver=1.0

2/*!
3 * Bootstrap v3.3.7 (http://getbootstrap.com)
4 * Copyright 2011-2016 Twitter, Inc.
5 * Licensed under the MIT license
6 */
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k=this.getViewportAdjustedDelta(c,b,i,j);k.left?b.left+=k.left:b.top+=k.top;var l=/top|bottom/.test(c),m=l?2*k.left-e+i:2*k.top-f+j,n=l?"offsetWidth":"offsetHeight";d.offset(b),this.replaceArrow(m,d[0][n],l)},c.prototype.replaceArrow=function(a,b,c){this.arrow().css(c?"left":"top",50*(1-a/b)+"%").css(c?"top":"left","")},c.prototype.setContent=function(){var a=this.tip(),b=this.getTitle();a.find(".tooltip-inner")[this.options.html?"html":"text"](b),a.removeClass("fade in top bottom left right")},c.prototype.hide=function(b){function d(){"in"!=e.hoverState&&f.detach(),e.$element&&e.$element.removeAttr("aria-describedby").trigger("hidden.bs."+e.type),b&&b()}var e=this,f=a(this.$tip),g=a.Event("hide.bs."+this.type);if(this.$element.trigger(g),!g.isDefaultPrevented())return f.removeClass("in"),a.support.transition&&f.hasClass("fade")?f.one("bsTransitionEnd",d).emulateTransitionEnd(c.TRANSITION_DURATION):d(),this.hoverState=null,this},c.prototype.fixTitle=function(){var a=this.$element;(a.attr("title")||"string"!=typeof a.attr("data-original-title"))&&a.attr("data-original-title",a.attr("title")||"").attr("title","")},c.prototype.hasContent=function(){return this.getTitle()},c.prototype.getPosition=function(b){b=b||this.$element;var c=b[0],d="BODY"==c.tagName,e=c.getBoundingClientRect();null==e.width&&(e=a.extend({},e,{width:e.right-e.left,height:e.bottom-e.top}));var f=window.SVGElement&&c instanceof window.SVGElement,g=d?{top:0,left:0}:f?null:b.offset(),h={scroll:d?document.documentElement.scrollTop||document.body.scrollTop:b.scrollTop()},i=d?{width:a(window).width(),height:a(window).height()}:null;return a.extend({},e,h,i,g)},c.prototype.getCalculatedOffset=function(a,b,c,d){return"bottom"==a?{top:b.top+b.height,left:b.left+b.width/2-c/2}:"top"==a?{top:b.top-d,left:b.left+b.width/2-c/2}:"left"==a?{top:b.top+b.height/2-d/2,left:b.left-c}:{top:b.top+b.height/2-d/2,left:b.left+b.width}},c.prototype.getViewportAdjustedDelta=function(a,b,c,d){var 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d=a(this),e=d.data("bs.popover"),f="object"==typeof b&&b;!e&&/destroy|hide/.test(b)||(e||d.data("bs.popover",e=new c(this,f)),"string"==typeof b&&e[b]())})}var c=function(a,b){this.init("popover",a,b)};if(!a.fn.tooltip)throw new Error("Popover requires tooltip.js");c.VERSION="3.3.7",c.DEFAULTS=a.extend({},a.fn.tooltip.Constructor.DEFAULTS,{placement:"right",trigger:"click",content:"",template:'<div class="popover" role="tooltip"><div class="arrow"></div><h3 class="popover-title"></h3><div class="popover-content"></div></div>'}),c.prototype=a.extend({},a.fn.tooltip.Constructor.prototype),c.prototype.constructor=c,c.prototype.getDefaults=function(){return c.DEFAULTS},c.prototype.setContent=function(){var a=this.tip(),b=this.getTitle(),c=this.getContent();a.find(".popover-title")[this.options.html?"html":"text"](b),a.find(".popover-content").children().detach().end()[this.options.html?"string"==typeof c?"html":"append":"text"](c),a.removeClass("fade top bottom left right 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d=a(this),e=d.data("bs.scrollspy"),f="object"==typeof c&&c;e||d.data("bs.scrollspy",e=new b(this,f)),"string"==typeof c&&e[c]()})}b.VERSION="3.3.7",b.DEFAULTS={offset:10},b.prototype.getScrollHeight=function(){return this.$scrollElement[0].scrollHeight||Math.max(this.$body[0].scrollHeight,document.documentElement.scrollHeight)},b.prototype.refresh=function(){var b=this,c="offset",d=0;this.offsets=[],this.targets=[],this.scrollHeight=this.getScrollHeight(),a.isWindow(this.$scrollElement[0])||(c="position",d=this.$scrollElement.scrollTop()),this.$body.find(this.selector).map(function(){var b=a(this),e=b.data("target")||b.attr("href"),f=/^#./.test(e)&&a(e);return f&&f.length&&f.is(":visible")&&[[f[c]().top+d,e]]||null}).sort(function(a,b){return a[0]-b[0]}).each(function(){b.offsets.push(this[0]),b.targets.push(this[1])})},b.prototype.process=function(){var 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8this.activeTarget=b,this.clear();var c=this.selector+'[data-target="'+b+'"],'+this.selector+'[href="'+b+'"]',d=a(c).parents("li").addClass("active");d.parent(".dropdown-menu").length&&(d=d.closest("li.dropdown").addClass("active")),d.trigger("activate.bs.scrollspy")},b.prototype.clear=function(){a(this.selector).parentsUntil(this.options.target,".active").removeClass("active")};var d=a.fn.scrollspy;a.fn.scrollspy=c,a.fn.scrollspy.Constructor=b,a.fn.scrollspy.noConflict=function(){return a.fn.scrollspy=d,this},a(window).on("load.bs.scrollspy.data-api",function(){a('[data-spy="scroll"]').each(function(){var b=a(this);c.call(b,b.data())})})}(jQuery),+function(a){"use strict";function b(b){return this.each(function(){var d=a(this),e=d.data("bs.tab");e||d.data("bs.tab",e=new c(this)),"string"==typeof b&&e[b]()})}var c=function(b){this.element=a(b)};c.VERSION="3.3.7",c.TRANSITION_DURATION=150,c.prototype.show=function(){var b=this.element,c=b.closest("ul:not(.dropdown-menu)"),d=b.data("target");if(d||(d=b.attr("href"),d=d&&d.replace(/.*(?=#[^\s]*$)/,"")),!b.parent("li").hasClass("active")){var e=c.find(".active:last a"),f=a.Event("hide.bs.tab",{relatedTarget:b[0]}),g=a.Event("show.bs.tab",{relatedTarget:e[0]});if(e.trigger(f),b.trigger(g),!g.isDefaultPrevented()&&!f.isDefaultPrevented()){var h=a(d);this.activate(b.closest("li"),c),this.activate(h,h.parent(),function(){e.trigger({type:"hidden.bs.tab",relatedTarget:b[0]}),b.trigger({type:"shown.bs.tab",relatedTarget:e[0]})})}}},c.prototype.activate=function(b,d,e){function f(){g.removeClass("active").find("> .dropdown-menu > .active").removeClass("active").end().find('[data-toggle="tab"]').attr("aria-expanded",!1),b.addClass("active").find('[data-toggle="tab"]').attr("aria-expanded",!0),h?(b[0].offsetWidth,b.addClass("in")):b.removeClass("fade"),b.parent(".dropdown-menu").length&&b.closest("li.dropdown").addClass("active").end().find('[data-toggle="tab"]').attr("aria-expanded",!0),e&&e()}var g=d.find("> .active"),h=e&&a.support.transition&&(g.length&&g.hasClass("fade")||!!d.find("> .fade").length);g.length&&h?g.one("bsTransitionEnd",f).emulateTransitionEnd(c.TRANSITION_DURATION):f(),g.removeClass("in")};var d=a.fn.tab;a.fn.tab=b,a.fn.tab.Constructor=c,a.fn.tab.noConflict=function(){return a.fn.tab=d,this};var e=function(c){c.preventDefault(),b.call(a(this),"show")};a(document).on("click.bs.tab.data-api",'[data-toggle="tab"]',e).on("click.bs.tab.data-api",'[data-toggle="pill"]',e)}(jQuery),+function(a){"use strict";function b(b){return this.each(function(){var d=a(this),e=d.data("bs.affix"),f="object"==typeof b&&b;e||d.data("bs.affix",e=new c(this,f)),"string"==typeof b&&e[b]()})}var c=function(b,d){this.options=a.extend({},c.DEFAULTS,d),this.$target=a(this.options.target).on("scroll.bs.affix.data-api",a.proxy(this.checkPosition,this)).on("click.bs.affix.data-api",a.proxy(this.checkPositionWithEventLoop,this)),this.$element=a(b),this.affixed=null,this.unpin=null,this.pinnedOffset=null,this.checkPosition()};c.VERSION="3.3.7",c.RESET="affix affix-top affix-bottom",c.DEFAULTS={offset:0,target:window},c.prototype.getState=function(a,b,c,d){var e=this.$target.scrollTop(),f=this.$element.offset(),g=this.$target.height();if(null!=c&&"top"==this.affixed)return e<c&&"top";if("bottom"==this.affixed)return null!=c?!(e+this.unpin<=f.top)&&"bottom":!(e+g<=a-d)&&"bottom";var h=null==this.affixed,i=h?e:f.top,j=h?g:b;return null!=c&&e<=c?"top":null!=d&&i+j>=a-d&&"bottom"},c.prototype.getPinnedOffset=function(){if(this.pinnedOffset)return this.pinnedOffset;this.$element.removeClass(c.RESET).addClass("affix");var a=this.$target.scrollTop(),b=this.$element.offset();return this.pinnedOffset=b.top-a},c.prototype.checkPositionWithEventLoop=function(){setTimeout(a.proxy(this.checkPosition,this),1)},c.prototype.checkPosition=function(){if(this.$element.is(":visible")){var b=this.$element.height(),d=this.options.offset,e=d.top,f=d.bottom,g=Math.max(a(document).height(),a(document.body).height());"object"!=typeof d&&(f=e=d),"function"==typeof e&&(e=d.top(this.$element)),"function"==typeof f&&(f=d.bottom(this.$element));var h=this.getState(g,b,e,f);if(this.affixed!=h){null!=this.unpin&&this.$element.css("top","");var i="affix"+(h?"-"+h:""),j=a.Event(i+".bs.affix");if(this.$element.trigger(j),j.isDefaultPrevented())return;this.affixed=h,this.unpin="bottom"==h?this.getPinnedOffset():null,this.$element.removeClass(c.RESET).addClass(i).trigger(i.replace("affix","affixed")+".bs.affix")}"bottom"==h&&this.$element.offset({top:g-b-f})}};var d=a.fn.affix;a.fn.affix=b,a.fn.affix.Constructor=c,a.fn.affix.noConflict=function(){return a.fn.affix=d,this},a(window).on("load",function(){a('[data-spy="affix"]').each(function(){var c=a(this),d=c.data();d.offset=d.offset||{},null!=d.offsetBottom&&(d.offset.bottom=d.offsetBottom),null!=d.offsetTop&&(d.offset.top=d.offsetTop),b.call(c,d)})})}(jQuery);

586  } else {
587    // Can't handle file uploads, exit
588    if ($(form).find(':file').length) {
589      return;
590    }
591
592    // Fallback to manually serializing the fields
593    defaults.data = $(form).serializeArray();
594  }
595
596  pjax($.extend({}, defaults, options))
597
598  event.preventDefault()
599}
600
601// Loads a URL with ajax, puts the response body inside a container,
602// then pushState()'s the loaded URL.
603//
604// Works just like $.ajax in that it accepts a jQuery ajax
605// settings object (with keys like url, type, data, etc).
606//
607// Accepts these extra keys:
608//
609// container - Where to stick the response body.
610//             $(container).html(xhr.responseBody)
611//      push - Whether to pushState the URL. Defaults to true (of course).
612//   replace - Want to use replaceState instead? That's cool.
613//
614// Use it just like $.ajax:
615//
616//   var xhr = $.pjax({ url: this.href, container: '#main' })
617//   console.log( xhr.readyState )
618//
619// Returns whatever $.ajax returns.
620function pjax(options) {
621  options = $.extend(true, {}, $.ajaxSettings, pjax.defaults, options)
622
623  if ($.isFunction(options.url)) {
624    options.url = options.url()
625  }
626
627  var target = options.target
628
629  var hash = parseURL(options.url).hash
630
631  var context = options.context = findContainerFor(options.container)
632
633  // We want the browser to maintain two separate internal caches: one
634  // for pjax'd partial page loads and one for normal page loads.
635  // Without adding this secret parameter, some browsers will often
636  // confuse the two.
637  if (!options.data) options.data = {}
638  if ($.isArray(options.data)) {
639    options.data.push({name: '_pjax', value: context.selector})
640  } else {
641    options.data._pjax = context.selector
642  }
643
644  function fire(type, args, props) {
645    if (!props) props = {}
646    props.relatedTarget = target
647    var event = $.Event(type, props)
648    context.trigger(event, args)
649    return !event.isDefaultPrevented()
650  }
651
652  var timeoutTimer
653
654  options.beforeSend = function(xhr, settings) {
655    // No timeout for non-GET requests
656    // Its not safe to request the resource again with a fallback method.
657    if (settings.type !== 'GET') {
658      settings.timeout = 0
659    }
660
661    xhr.setRequestHeader('X-PJAX', 'true')
662    xhr.setRequestHeader('X-PJAX-Container', context.selector)
663
664    if (!fire('pjax:beforeSend', [xhr, settings]))
665      return false
666
667    if (settings.timeout > 0) {
668      timeoutTimer = setTimeout(function() {
669        if (fire('pjax:timeout', [xhr, options]))
670          xhr.abort('timeout')
671      }, settings.timeout)
672
673      // Clear timeout setting so jquerys internal timeout isn't invoked
674      settings.timeout = 0
675    }
676
677    var url = parseURL(settings.url)
678    if (hash) url.hash = hash
679    options.requestUrl = stripInternalParams(url)
680  }
681
682  options.complete = function(xhr, textStatus) {
683    if (timeoutTimer)
684      clearTimeout(timeoutTimer)
685
686    fire('pjax:complete', [xhr, textStatus, options])
687
688    fire('pjax:end', [xhr, options])
689  }
690
691  options.error = function(xhr, textStatus, errorThrown) {
692    var container = extractContainer("", xhr, options)
693
694    var allowed = fire('pjax:error', [xhr, textStatus, errorThrown, options])
695    if (options.type == 'GET' && textStatus !== 'abort' && allowed) {
696      locationReplace(container.url)
697    }
698  }
699
700  options.success = function(data, status, xhr) {
701    var previousState = pjax.state;
702
703    // If $.pjax.defaults.version is a function, invoke it first.
704    // Otherwise it can be a static string.
705    var currentVersion = (typeof $.pjax.defaults.version === 'function') ?
706      $.pjax.defaults.version() :
707      $.pjax.defaults.version
708
709    var latestVersion = xhr.getResponseHeader('X-PJAX-Version')
710
711    var container = extractContainer(data, xhr, options)
712
713    var url = parseURL(container.url)
714    if (hash) {
715      url.hash = hash
716      container.url = url.href
717    }
718
719    // If there is a layout version mismatch, hard load the new url
720    if (currentVersion && latestVersion && currentVersion !== latestVersion) {
721      locationReplace(container.url)
722      return
723    }
724
725    // If the new response is missing a body, hard load the page
726    if (!container.contents) {
727      locationReplace(container.url)
728      return
729    }
730
731    pjax.state = {
732      id: options.id || uniqueId(),
733      url: container.url,
734      title: container.title,
735      container: context.selector,
736      fragment: options.fragment,
737      timeout: options.timeout
738    }
739
740    if (options.push || options.replace) {
741      window.history.replaceState(pjax.state, container.title, container.url)
742    }
743
744    // Clear out any focused controls before inserting new page contents.
745    try {
746      document.activeElement.blur()
747    } catch (e) { }
748
749    if (container.title) document.title = container.title
750
751    fire('pjax:beforeReplace', [container.contents, options], {
752      state: pjax.state,
753      previousState: previousState
754    })
755    context.html(container.contents)
756
757    // FF bug: Won't autofocus fields that are inserted via JS.
758    // This behavior is incorrect. So if theres no current focus, autofocus
759    // the last field.
760    //
761    // http://www.w3.org/html/wg/drafts/html/master/forms.html
762    var autofocusEl = context.find('input[autofocus], textarea[autofocus]').last()[0]
763    if (autofocusEl && document.activeElement !== autofocusEl) {
764      autofocusEl.focus();
765    }
766
767    executeScriptTags(container.scripts)
768
769    var scrollTo = options.scrollTo
770
771    // Ensure browser scrolls to the element referenced by the URL anchor
772    if (hash) {
773      var name = decodeURIComponent(hash.slice(1))
774      var target = document.getElementById(name) || document.getElementsByName(name)[0]
775      if (target) scrollTo = $(target).offset().top
776    }
777
778    if (typeof scrollTo == 'number') $(window).scrollTop(scrollTo)
779
780    fire('pjax:success', [data, status, xhr, options])
781  }
782
783
784  // Initialize pjax.state for the initial page load. Assume we're
785  // using the container and options of the link we're loading for the
786  // back button to the initial page. This ensures good back button
787  // behavior.
788  if (!pjax.state) {
789    pjax.state = {
790      id: uniqueId(),
791      url: window.location.href,
792      title: document.title,
793      container: context.selector,
794      fragment: options.fragment,
795      timeout: options.timeout
796    }
797    window.history.replaceState(pjax.state, document.title)
798  }
799
800  // Cancel the current request if we're already pjaxing
801  abortXHR(pjax.xhr)
802
803  pjax.options = options
804  var xhr = pjax.xhr = $.ajax(options)
805
806  if (xhr.readyState > 0) {
807    if (options.push && !options.replace) {
808      // Cache current container element before replacing it
809      cachePush(pjax.state.id, cloneContents(context))
810
811      window.history.pushState(null, "", options.requestUrl)
812    }
813
814    fire('pjax:start', [xhr, options])
815    fire('pjax:send', [xhr, options])
816  }
817
818  return pjax.xhr
819}
820
821// Public: Reload current page with pjax.
822//
823// Returns whatever $.pjax returns.
824function pjaxReload(container, options) {
825  var defaults = {
826    url: window.location.href,
827    push: false,
828    replace: true,
829    scrollTo: false
830  }
831
832  return pjax($.extend(defaults, optionsFor(container, options)))
833}
834
835// Internal: Hard replace current state with url.
836//
837// Work for around WebKit
838//   https://bugs.webkit.org/show_bug.cgi?id=93506
839//
840// Returns nothing.
841function locationReplace(url) {
842  window.history.replaceState(null, "", pjax.state.url)
843  window.location.replace(url)
844}
845
846
847var initialPop = true
848var initialURL = window.location.href
849var initialState = window.history.state
850
851// Initialize $.pjax.state if possible
852// Happens when reloading a page and coming forward from a different
853// session history.
854if (initialState && initialState.container) {
855  pjax.state = initialState
856}
857
858// Non-webkit browsers don't fire an initial popstate event
859if ('state' in window.history) {
860  initialPop = false
861}
862
863// popstate handler takes care of the back and forward buttons
864//
865// You probably shouldn't use pjax on pages with other pushState
866// stuff yet.
867function onPjaxPopstate(event) {
868
869  // Hitting back or forward should override any pending PJAX request.
870  if (!initialPop) {
871    abortXHR(pjax.xhr)
872  }
873
874  var previousState = pjax.state
875  var state = event.state
876  var direction
877
878  if (state && state.container) {
879    // When coming forward from a separate history session, will get an
880    // initial pop with a state we are already at. Skip reloading the current
881    // page.
882    if (initialPop && initialURL == state.url) return
883
884    if (previousState) {
885      // If popping back to the same state, just skip.
886      // Could be clicking back from hashchange rather than a pushState.
887      if (previousState.id === state.id) return
888
889      // Since state IDs always increase, we can deduce the navigation direction
890      direction = previousState.id < state.id ? 'forward' : 'back'
891    }
892
893    var cache = cacheMapping[state.id] || []
894    var container = $(cache[0] || state.container), contents = cache[1]
895
896    if (container.length) {
897      if (previousState) {
898        // Cache current container before replacement and inform the
899        // cache which direction the history shifted.
900        cachePop(direction, previousState.id, cloneContents(container))
901      }
902
903      var popstateEvent = $.Event('pjax:popstate', {
904        state: state,
905        direction: direction
906      })
907      container.trigger(popstateEvent)
908
909      var options = {
910        id: state.id,
911        url: state.url,
912        container: container,
913        push: false,
914        fragment: state.fragment,
915        timeout: state.timeout,
916        scrollTo: false
917      }
918
919      if (contents) {
920        container.trigger('pjax:start', [null, options])
921
922        pjax.state = state
923        if (state.title) document.title = state.title
924        var beforeReplaceEvent = $.Event('pjax:beforeReplace', {
925          state: state,
926          previousState: previousState
927        })
928        container.trigger(beforeReplaceEvent, [contents, options])
929        container.html(contents)
930
931        container.trigger('pjax:end', [null, options])
932      } else {
933        pjax(options)
934      }
935
936      // Force reflow/relayout before the browser tries to restore the
937      // scroll position.
938      container[0].offsetHeight
939    } else {
940      locationReplace(location.href)
941    }
942  }
943  initialPop = false
944}
945
946// Fallback version of main pjax function for browsers that don't
947// support pushState.
948//
949// Returns nothing since it retriggers a hard form submission.
950function fallbackPjax(options) {
951  var url = $.isFunction(options.url) ? options.url() : options.url,
952      method = options.type ? options.type.toUpperCase() : 'GET'
953
954  var form = $('<form>', {
955    method: method === 'GET' ? 'GET' : 'POST',
956    action: url,
957    style: 'display:none'
958  })
959
960  if (method !== 'GET' && method !== 'POST') {
961    form.append($('<input>', {
962      type: 'hidden',
963      name: '_method',
964      value: method.toLowerCase()
965    }))
966  }
967
968  var data = options.data
969  if (typeof data === 'string') {
970    $.each(data.split('&'), function(index, value) {
971      var pair = value.split('=')
972      form.append($('<input>', {type: 'hidden', name: pair[0], value: pair[1]}))
973    })
974  } else if ($.isArray(data)) {
975    $.each(data, function(index, value) {
976      form.append($('<input>', {type: 'hidden', name: value.name, value: value.value}))
977    })
978  } else if (typeof data === 'object') {
979    var key
980    for (key in data)
981      form.append($('<input>', {type: 'hidden', name: key, value: data[key]}))
982  }
983
984  $(document.body).append(form)
985  form.submit()
986}
987
988// Internal: Abort an XmlHttpRequest if it hasn't been completed,
989// also removing its event handlers.
990function abortXHR(xhr) {
991  if ( xhr && xhr.readyState < 4) {
992    xhr.onreadystatechange = $.noop
993    xhr.abort()
994  }
995}
996
997// Internal: Generate unique id for state object.
998//
999// Use a timestamp instead of a counter since ids should still be
1000// unique across page loads.
1001//
1002// Returns Number.
1003function uniqueId() {
1004  return (new Date).getTime()
1005}
1006
1007function cloneContents(container) {
1008  var cloned = container.clone()
1009  // Unmark script tags as already being eval'd so they can get executed again
1010  // when restored from cache. HAXX: Uses jQuery internal method.
1011  cloned.find('script').each(function(){
1012    if (!this.src) jQuery._data(this, 'globalEval', false)
1013  })
1014  return [container.selector, cloned.contents()]
1015}
1016
1017// Internal: Strip internal query params from parsed URL.
1018//
1019// Returns sanitized url.href String.
1020function stripInternalParams(url) {
1021  url.search = url.search.replace(/([?&])(_pjax|_)=[^&]*/g, '')
1022  return url.href.replace(/\?($|#)/, '$1')
1023}
1024
1025// Internal: Parse URL components and returns a Locationish object.
1026//
1027// url - String URL
1028//
1029// Returns HTMLAnchorElement that acts like Location.
1030function parseURL(url) {
1031  var a = document.createElement('a')
1032  a.href = url
1033  return a
1034}
1035
1036// Internal: Return the `href` component of given URL object with the hash
1037// portion removed.
1038//
1039// location - Location or HTMLAnchorElement
1040//
1041// Returns String
1042function stripHash(location) {
1043  return location.href.replace(/#.*/, '')
1044}
1045
1046// Internal: Build options Object for arguments.
1047//
1048// For convenience the first parameter can be either the container or
1049// the options object.
1050//
1051// Examples
1052//
1053//   optionsFor('#container')
1054//   // => {container: '#container'}
1055//
1056//   optionsFor('#container', {push: true})
1057//   // => {container: '#container', push: true}
1058//
1059//   optionsFor({container: '#container', push: true})
1060//   // => {container: '#container', push: true}
1061//
1062// Returns options Object.
1063function optionsFor(container, options) {
1064  // Both container and options
1065  if ( container && options )
1066    options.container = container
1067
1068  // First argument is options Object
1069  else if ( $.isPlainObject(container) )
1070    options = container
1071
1072  // Only container
1073  else
1074    options = {container: container}
1075
1076  // Find and validate container
1077  if (options.container)
1078    options.container = findContainerFor(options.container)
1079
1080  return options
1081}
1082
1083// Internal: Find container element for a variety of inputs.
1084//
1085// Because we can't persist elements using the history API, we must be
1086// able to find a String selector that will consistently find the Element.
1087//
1088// container - A selector String, jQuery object, or DOM Element.
1089//
1090// Returns a jQuery object whose context is `document` and has a selector.
1091function findContainerFor(container) {
1092  container = $(container)
1093
1094  if ( !container.length ) {
1095    throw "no pjax container for " + container.selector
1096  } else if ( container.selector !== '' && container.context === document ) {
1097    return container
1098  } else if ( container.attr('id') ) {
1099    return $('#' + container.attr('id'))
1100  } else {
1101    throw "cant get selector for pjax container!"
1102  }
1103}
1104
1105// Internal: Filter and find all elements matching the selector.
1106//
1107// Where $.fn.find only matches descendants, findAll will test all the
1108// top level elements in the jQuery object as well.
1109//
1110// elems    - jQuery object of Elements
1111// selector - String selector to match
1112//
1113// Returns a jQuery object.
1114function findAll(elems, selector) {
1115  return elems.filter(selector).add(elems.find(selector));
1116}
1117
1118function parseHTML(html) {
1119  return $.parseHTML(html, document, true)
1120}
1121
1122// Internal: Extracts container and metadata from response.
1123//
1124// 1. Extracts X-PJAX-URL header if set
1125// 2. Extracts inline <title> tags
1126// 3. Builds response Element and extracts fragment if set
1127//
1128// data    - String response data
1129// xhr     - XHR response
1130// options - pjax options Object
1131//
1132// Returns an Object with url, title, and contents keys.
1133function extractContainer(data, xhr, options) {
1134  var obj = {}, fullDocument = /<html/i.test(data)
1135
1136  // Prefer X-PJAX-URL header if it was set, otherwise fallback to
1137  // using the original requested url.
1138  var serverUrl = xhr.getResponseHeader('X-PJAX-URL')
1139  obj.url = serverUrl ? stripInternalParams(parseURL(serverUrl)) : options.requestUrl
1140
1141  // Attempt to parse response html into elements
1142  if (fullDocument) {
1143    var $head = $(parseHTML(data.match(/<head[^>]*>([\s\S.]*)<\/head>/i)[0]))
1144    var $body = $(parseHTML(data.match(/<body[^>]*>([\s\S.]*)<\/body>/i)[0]))
1145  } else {
1146    var $head = $body = $(parseHTML(data))
1147  }
1148
1149  // If response data is empty, return fast
1150  if ($body.length === 0)
1151    return obj
1152
1153  // If there's a <title> tag in the header, use it as
1154  // the page's title.
1155  obj.title = findAll($head, 'title').last().text()
1156
1157  if (options.fragment) {
1158    // If they specified a fragment, look for it in the response
1159    // and pull it out.
1160    if (options.fragment === 'body') {
1161      var $fragment = $body
1162    } else {
1163      var $fragment = findAll($body, options.fragment).first()
1164    }
1165
1166    if ($fragment.length) {
1167      obj.contents = options.fragment === 'body' ? $fragment : $fragment.contents()
1168
1169      // If there's no title, look for data-title and title attributes
1170      // on the fragment
1171      if (!obj.title)
1172        obj.title = $fragment.attr('title') || $fragment.data('title')
1173    }
1174
1175  } else if (!fullDocument) {
1176    obj.contents = $body
1177  }
1178
1179  // Clean up any <title> tags
1180  if (obj.contents) {
1181    // Remove any parent title elements
1182    obj.contents = obj.contents.not(function() { return $(this).is('title') })
1183
1184    // Then scrub any titles from their descendants
1185    obj.contents.find('title').remove()
1186
1187    // Gather all script[src] elements
1188    obj.scripts = findAll(obj.contents, 'script[src]').remove()
1189    obj.contents = obj.contents.not(obj.scripts)
1190  }
1191
1192  // Trim any whitespace off the title
1193  if (obj.title) obj.title = $.trim(obj.title)
1194
1195  return obj
1196}
1197
1198// Load an execute scripts using standard script request.
1199//
1200// Avoids jQuery's traditional $.getScript which does a XHR request and
1201// globalEval.
1202//
1203// scripts - jQuery object of script Elements
1204//
1205// Returns nothing.
1206function executeScriptTags(scripts) {
1207  if (!scripts) return
1208
1209  var existingScripts = $('script[src]')
1210
1211  scripts.each(function() {
1212    var src = this.src
1213    var matchedScripts = existingScripts.filter(function() {
1214      return this.src === src
1215    })
1216    if (matchedScripts.length) return
1217
1218    var script = document.createElement('script')
1219    var type = $(this).attr('type')
1220    if (type) script.type = type
1221    script.src = $(this).attr('src')
1222    document.head.appendChild(script)
1223  })
1224}
1225
1226// Internal: History DOM caching class.
1227var cacheMapping      = {}
1228var cacheForwardStack = []
1229var cacheBackStack    = []
1230
1231// Push previous state id and container contents into the history
1232// cache. Should be called in conjunction with `pushState` to save the
1233// previous container contents.
1234//
1235// id    - State ID Number
1236// value - DOM Element to cache
1237//
1238// Returns nothing.
1239function cachePush(id, value) {
1240  cacheMapping[id] = value
1241  cacheBackStack.push(id)
1242
1243  // Remove all entries in forward history stack after pushing a new page.
1244  trimCacheStack(cacheForwardStack, 0)
1245
1246  // Trim back history stack to max cache length.
1247  trimCacheStack(cacheBackStack, pjax.defaults.maxCacheLength)
1248}
1249
1250// Shifts cache from directional history cache. Should be
1251// called on `popstate` with the previous state id and container
1252// contents.
1253//
1254// direction - "forward" or "back" String
1255// id        - State ID Number
1256// value     - DOM Element to cache
1257//
1258// Returns nothing.
1259function cachePop(direction, id, value) {
1260  var pushStack, popStack
1261  cacheMapping[id] = value
1262
1263  if (direction === 'forward') {
1264    pushStack = cacheBackStack
1265    popStack  = cacheForwardStack
1266  } else {
1267    pushStack = cacheForwardStack
1268    popStack  = cacheBackStack
1269  }
1270
1271  pushStack.push(id)
1272  if (id = popStack.pop())
1273    delete cacheMapping[id]
1274
1275  // Trim whichever stack we just pushed to to max cache length.
1276  trimCacheStack(pushStack, pjax.defaults.maxCacheLength)
1277}
1278
1279// Trim a cache stack (either cacheBackStack or cacheForwardStack) to be no
1280// longer than the specified length, deleting cached DOM elements as necessary.
1281//
1282// stack  - Array of state IDs
1283// length - Maximum length to trim to
1284//
1285// Returns nothing.
1286function trimCacheStack(stack, length) {
1287  while (stack.length > length)
1288    delete cacheMapping[stack.shift()]
1289}
1290
1291// Public: Find version identifier for the initial page load.
1292//
1293// Returns String version or undefined.
1294function findVersion() {
1295  return $('meta').filter(function() {
1296    var name = $(this).attr('http-equiv')
1297    return name && name.toUpperCase() === 'X-PJAX-VERSION'
1298  }).attr('content')
1299}
1300
1301// Install pjax functions on $.pjax to enable pushState behavior.
1302//
1303// Does nothing if already enabled.
1304//
1305// Examples
1306//
1307//     $.pjax.enable()
1308//
1309// Returns nothing.
1310function enable() {
1311  $.fn.pjax = fnPjax
1312  $.pjax = pjax
1313  $.pjax.enable = $.noop
1314  $.pjax.disable = disable
1315  $.pjax.click = handleClick
1316  $.pjax.submit = handleSubmit
1317  $.pjax.reload = pjaxReload
1318  $.pjax.defaults = {
1319    timeout: 650,
1320    push: true,
1321    replace: false,
1322    type: 'GET',
1323    dataType: 'html',
1324    scrollTo: 0,
1325    maxCacheLength: 20,
1326    version: findVersion
1327  }
1328  $(window).on('popstate.pjax', onPjaxPopstate)
1329}
1330
1331// Disable pushState behavior.
1332//
1333// This is the case when a browser doesn't support pushState. It is
1334// sometimes useful to disable pushState for debugging on a modern
1335// browser.
1336//
1337// Examples
1338//
1339//     $.pjax.disable()
1340//
1341// Returns nothing.
1342function disable() {
1343  $.fn.pjax = function() { return this }
1344  $.pjax = fallbackPjax
1345  $.pjax.enable = enable
1346  $.pjax.disable = $.noop
1347  $.pjax.click = $.noop
1348  $.pjax.submit = $.noop
1349  $.pjax.reload = function() { window.location.reload() }
1350
1351  $(window).off('popstate.pjax', onPjaxPopstate)
1352}
1353
1354
1355// Add the state property to jQuery's event object so we can use it in
1356// $(window).bind('popstate')
1357if ( $.inArray('state', $.event.props) < 0 )
1358  $.event.props.push('state')
1359
1360// Is pjax supported by this browser?