/*jslint browser: true */ /*global jQuery: true */

/**
 * jQuery Cookie plugin
 *
 * Copyright (c) 2010 Klaus Hartl (stilbuero.de)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 */

// TODO JsDoc

/**
 * Create a cookie with the given key and value and other optional parameters.
 *
 * @example $.cookie('the_cookie', 'the_value');
 * @desc Set the value of a cookie.
 * @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true });
 * @desc Create a cookie with all available options.
 * @example $.cookie('the_cookie', 'the_value');
 * @desc Create a session cookie.
 * @example $.cookie('the_cookie', null);
 * @desc Delete a cookie by passing null as value. Keep in mind that you have to use the same path and domain
 *       used when the cookie was set.
 *
 * @param String key The key of the cookie.
 * @param String value The value of the cookie.
 * @param Object options An object literal containing key/value pairs to provide optional cookie attributes.
 * @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object.
 *                             If a negative value is specified (e.g. a date in the past), the cookie will be deleted.
 *                             If set to null or omitted, the cookie will be a session cookie and will not be retained
 *                             when the the browser exits.
 * @option String path The value of the path atribute of the cookie (default: path of page that created the cookie).
 * @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie).
 * @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will
 *                        require a secure protocol (like HTTPS).
 * @type undefined
 *
 * @name $.cookie
 * @cat Plugins/Cookie
 * @author Klaus Hartl/klaus.hartl@stilbuero.de
 */

/**
 * Get the value of a cookie with the given key.
 *
 * @example $.cookie('the_cookie');
 * @desc Get the value of a cookie.
 *
 * @param String key The key of the cookie.
 * @return The value of the cookie.
 * @type String
 *
 * @name $.cookie
 * @cat Plugins/Cookie
 * @author Klaus Hartl/klaus.hartl@stilbuero.de
 */
jQuery.cookie = function (key, value, options) {

    // key and value given, set cookie...
    if (arguments.length > 1 && (value === null || typeof value !== "object")) {
        options = jQuery.extend({}, options);

        if (value === null) {
            options.expires = -1;
        }

        if (typeof options.expires === 'number') {
            var days = options.expires, t = options.expires = new Date();
            t.setDate(t.getDate() + days);
        }

        return (document.cookie = [
            encodeURIComponent(key), '=',
            options.raw ? String(value) : encodeURIComponent(String(value)),
            options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
            options.path ? '; path=' + options.path : '',
            options.domain ? '; domain=' + options.domain : '',
            options.secure ? '; secure' : ''
        ].join(''));
    }

    // key and possibly options given, get cookie...
    options = value || {};
    var result, decode = options.raw ? function (s) { return s; } : decodeURIComponent;
    return (result = new RegExp('(?:^|; )' + encodeURIComponent(key) + '=([^;]*)').exec(document.cookie)) ? decode(result[1]) : null;
};
;
/*!
 * jQuery Form Plugin
 * version: 2.69 (06-APR-2011)
 * @requires jQuery v1.3.2 or later
 *
 * Examples and documentation at: http://malsup.com/jquery/form/
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 */
(function(a){function b(){if(a.fn.ajaxSubmit.debug){var b="[jquery.form] "+Array.prototype.join.call(arguments,"");window.console&&window.console.log?window.console.log(b):window.opera&&window.opera.postError&&window.opera.postError(b)}}a.fn.ajaxSubmit=function(c){function r(){function t(){if(!j.aborted){var c=i.contentWindow?i.contentWindow.document:i.contentDocument?i.contentDocument:i.document;if(!c||c.location.href==e.iframeSrc)if(!m)return;i.detachEvent?i.detachEvent("onload",t):i.removeEventListener("load",t,!1);var d=!0;try{if(m)throw"timeout";var f=e.dataType=="xml"||c.XMLDocument||a.isXMLDoc(c);b("isXml="+f);if(!f&&window.opera&&(c.body==null||c.body.innerHTML=="")&&--s){b("requeing onLoad callback, DOM not available"),setTimeout(t,250);return}j.responseText=c.body?c.body.innerHTML:c.documentElement?c.documentElement.innerHTML:null,j.responseXML=c.XMLDocument?c.XMLDocument:c,j.getResponseHeader=function(a){var b={"content-type":e.dataType};return b[a]};var g=/(json|script)/.test(e.dataType);if(g||e.textarea){var l=c.getElementsByTagName("textarea")[0];if(l)j.responseText=l.value;else if(g){var n=c.getElementsByTagName("pre")[0],o=c.getElementsByTagName("body")[0];n?j.responseText=n.textContent:o&&(j.responseText=o.innerHTML)}}else e.dataType=="xml"&&!j.responseXML&&j.responseText!=null&&(j.responseXML=u(j.responseText));q=w(j,e.dataType,e)}catch(p){b("error caught:",p),d=!1,j.error=p,e.error&&e.error.call(e.context,j,"error",p),k&&a.event.trigger("ajaxError",[j,e,p])}j.aborted&&(b("upload aborted"),d=!1),d&&(e.success&&e.success.call(e.context,q,"success",j),k&&a.event.trigger("ajaxSuccess",[j,e])),k&&a.event.trigger("ajaxComplete",[j,e]),k&&!--a.active&&a.event.trigger("ajaxStop"),e.complete&&e.complete.call(e.context,j,d?"success":"error"),setTimeout(function(){h.removeData("form-plugin-onload"),h.remove(),j.responseXML=null},100)}}function p(){var b=l.attr("target"),c=l.attr("action");d.setAttribute("target",f),d.getAttribute("method")!="POST"&&d.setAttribute("method","POST"),d.getAttribute("action")!=e.url&&d.setAttribute("action",e.url),e.skipEncodingOverride||l.attr({encoding:"multipart/form-data",enctype:"multipart/form-data"}),e.timeout&&setTimeout(function(){m=!0,t()},e.timeout);var g=[];try{if(e.extraData)for(var j in e.extraData)g.push(a('<input type="hidden" name="'+j+'" value="'+e.extraData[j]+'" />').appendTo(d)[0]);h.appendTo("body"),i.attachEvent?i.attachEvent("onload",t):i.addEventListener("load",t,!1),d.submit()}finally{d.setAttribute("action",c),b?d.setAttribute("target",b):l.removeAttr("target"),a(g).remove()}}var d=l[0];if(a(":input[name=submit],:input[id=submit]",d).length)alert('Error: Form elements must not have name or id of "submit".');else{var e=a.extend(!0,{},a.ajaxSettings,c);e.context=e.context||e;var f="jqFormIO"+(new Date).getTime(),g="_"+f,h=a('<iframe id="'+f+'" name="'+f+'" src="'+e.iframeSrc+'" />'),i=h[0];h.css({position:"absolute",top:"-1000px",left:"-1000px"});var j={aborted:0,responseText:null,responseXML:null,status:0,statusText:"n/a",getAllResponseHeaders:function(){},getResponseHeader:function(){},setRequestHeader:function(){},abort:function(){b("aborting upload...");var c="aborted";this.aborted=1,h.attr("src",e.iframeSrc),j.error=c,e.error&&e.error.call(e.context,j,"error",c),k&&a.event.trigger("ajaxError",[j,e,c]),e.complete&&e.complete.call(e.context,j,"error")}},k=e.global;k&&!(a.active++)&&a.event.trigger("ajaxStart"),k&&a.event.trigger("ajaxSend",[j,e]);if(e.beforeSend&&e.beforeSend.call(e.context,j,e)===!1){e.global&&a.active--;return}if(j.aborted)return;var m=0,n=d.clk;if(n){var o=n.name;o&&!n.disabled&&(e.extraData=e.extraData||{},e.extraData[o]=n.value,n.type=="image"&&(e.extraData[o+".x"]=d.clk_x,e.extraData[o+".y"]=d.clk_y))}e.forceSync?p():setTimeout(p,10);var q,r,s=50,u=a.parseXML||function(a,b){window.ActiveXObject?(b=new ActiveXObject("Microsoft.XMLDOM"),b.async="false",b.loadXML(a)):b=(new DOMParser).parseFromString(a,"text/xml");return b&&b.documentElement&&b.documentElement.nodeName!="parsererror"?b:null},v=a.parseJSON||function(a){return window.eval("("+a+")")},w=function(b,c,d){var e=b.getResponseHeader("content-type")||"",f=c==="xml"||!c&&e.indexOf("xml")>=0,g=f?b.responseXML:b.responseText;f&&g.documentElement.nodeName==="parsererror"&&a.error&&a.error("parsererror"),d&&d.dataFilter&&(g=d.dataFilter(g,c)),typeof g=="string"&&(c==="json"||!c&&e.indexOf("json")>=0?g=v(g):(c==="script"||!c&&e.indexOf("javascript")>=0)&&a.globalEval(g));return g}}}if(!this.length){b("ajaxSubmit: skipping submit process - no element selected");return this}typeof c=="function"&&(c={success:c});var d=this.attr("action"),e=typeof d=="string"?a.trim(d):"";e&&(e=(e.match(/^([^#]+)/)||[])[1]),e=e||window.location.href||"",c=a.extend(!0,{url:e,success:a.ajaxSettings.success,type:this[0].getAttribute("method")||"GET",iframeSrc:/^https/i.test(window.location.href||"")?"javascript:false":"about:blank"},c);var f={};this.trigger("form-pre-serialize",[this,c,f]);if(f.veto){b("ajaxSubmit: submit vetoed via form-pre-serialize trigger");return this}if(c.beforeSerialize&&c.beforeSerialize(this,c)===!1){b("ajaxSubmit: submit aborted via beforeSerialize callback");return this}var g,h,i=this.formToArray(c.semantic);if(c.data){c.extraData=c.data;for(g in c.data)if(c.data[g]instanceof Array)for(var j in c.data[g])i.push({name:g,value:c.data[g][j]});else h=c.data[g],h=a.isFunction(h)?h():h,i.push({name:g,value:h})}if(c.beforeSubmit&&c.beforeSubmit(i,this,c)===!1){b("ajaxSubmit: submit aborted via beforeSubmit callback");return this}this.trigger("form-submit-validate",[i,this,c,f]);if(f.veto){b("ajaxSubmit: submit vetoed via form-submit-validate trigger");return this}var k=a.param(i);c.type.toUpperCase()=="GET"?(c.url+=(c.url.indexOf("?")>=0?"&":"?")+k,c.data=null):c.data=k;var l=this,m=[];c.resetForm&&m.push(function(){l.resetForm()}),c.clearForm&&m.push(function(){l.clearForm()});if(!c.dataType&&c.target){var n=c.success||function(){};m.push(function(b){var d=c.replaceTarget?"replaceWith":"html";a(c.target)[d](b).each(n,arguments)})}else c.success&&m.push(c.success);c.success=function(a,b,d){var e=c.context||c;for(var f=0,g=m.length;f<g;f++)m[f].apply(e,[a,b,d||l,l])};var o=a("input:file",this).length>0,p="multipart/form-data",q=l.attr("enctype")==p||l.attr("encoding")==p;c.iframe!==!1&&(o||c.iframe||q)?c.closeKeepAlive?a.get(c.closeKeepAlive,r):r():a.ajax(c),this.trigger("form-submit-notify",[this,c]);return this},a.fn.ajaxForm=function(c){if(this.length===0){var d={s:this.selector,c:this.context};if(!a.isReady&&d.s){b("DOM not ready, queuing ajaxForm"),a(function(){a(d.s,d.c).ajaxForm(c)});return this}b("terminating; zero elements found by selector"+(a.isReady?"":" (DOM not ready)"));return this}return this.ajaxFormUnbind().bind("submit.form-plugin",function(b){b.isDefaultPrevented()||(b.preventDefault(),a(this).ajaxSubmit(c))}).bind("click.form-plugin",function(b){var c=b.target,d=a(c);if(!d.is(":submit,input:image")){var e=d.closest(":submit");if(e.length==0)return;c=e[0]}var f=this;f.clk=c;if(c.type=="image")if(b.offsetX!=undefined)f.clk_x=b.offsetX,f.clk_y=b.offsetY;else if(typeof a.fn.offset=="function"){var g=d.offset();f.clk_x=b.pageX-g.left,f.clk_y=b.pageY-g.top}else f.clk_x=b.pageX-c.offsetLeft,f.clk_y=b.pageY-c.offsetTop;setTimeout(function(){f.clk=f.clk_x=f.clk_y=null},100)})},a.fn.ajaxFormUnbind=function(){return this.unbind("submit.form-plugin click.form-plugin")},a.fn.formToArray=function(b){var c=[];if(this.length===0)return c;var d=this[0],e=b?d.getElementsByTagName("*"):d.elements;if(!e)return c;var f,g,h,i,j,k,l;for(f=0,k=e.length;f<k;f++){j=e[f],h=j.name;if(!h)continue;if(b&&d.clk&&j.type=="image"){!j.disabled&&d.clk==j&&(c.push({name:h,value:a(j).val()}),c.push({name:h+".x",value:d.clk_x},{name:h+".y",value:d.clk_y}));continue}i=a.fieldValue(j,!0);if(i&&i.constructor==Array)for(g=0,l=i.length;g<l;g++)c.push({name:h,value:i[g]});else i!==null&&typeof i!="undefined"&&c.push({name:h,value:i})}if(!b&&d.clk){var m=a(d.clk),n=m[0];h=n.name,h&&!n.disabled&&n.type=="image"&&(c.push({name:h,value:m.val()}),c.push({name:h+".x",value:d.clk_x},{name:h+".y",value:d.clk_y}))}return c},a.fn.formSerialize=function(b){return a.param(this.formToArray(b))},a.fn.fieldSerialize=function(b){var c=[];this.each(function(){var d=this.name;if(!!d){var e=a.fieldValue(this,b);if(e&&e.constructor==Array)for(var f=0,g=e.length;f<g;f++)c.push({name:d,value:e[f]});else e!==null&&typeof e!="undefined"&&c.push({name:this.name,value:e})}});return a.param(c)},a.fn.fieldValue=function(b){for(var c=[],d=0,e=this.length;d<e;d++){var f=this[d],g=a.fieldValue(f,b);if(g===null||typeof g=="undefined"||g.constructor==Array&&!g.length)continue;g.constructor==Array?a.merge(c,g):c.push(g)}return c},a.fieldValue=function(b,c){var d=b.name,e=b.type,f=b.tagName.toLowerCase();c===undefined&&(c=!0);if(c&&(!d||b.disabled||e=="reset"||e=="button"||(e=="checkbox"||e=="radio")&&!b.checked||(e=="submit"||e=="image")&&b.form&&b.form.clk!=b||f=="select"&&b.selectedIndex==-1))return null;if(f=="select"){var g=b.selectedIndex;if(g<0)return null;var h=[],i=b.options,j=e=="select-one",k=j?g+1:i.length;for(var l=j?g:0;l<k;l++){var m=i[l];if(m.selected){var n=m.value;n||(n=m.attributes&&m.attributes.value&&!m.attributes.value.specified?m.text:m.value);if(j)return n;h.push(n)}}return h}return a(b).val()},a.fn.clearForm=function(){return this.each(function(){a("input,select,textarea",this).clearFields()})},a.fn.clearFields=a.fn.clearInputs=function(){return this.each(function(){var a=this.type,b=this.tagName.toLowerCase();a=="text"||a=="password"||b=="textarea"?this.value="":a=="checkbox"||a=="radio"?this.checked=!1:b=="select"&&(this.selectedIndex=-1)})},a.fn.resetForm=function(){return this.each(function(){(typeof this.reset=="function"||typeof this.reset=="object"&&!this.reset.nodeType)&&this.reset()})},a.fn.enable=function(a){a===undefined&&(a=!0);return this.each(function(){this.disabled=!a})},a.fn.selected=function(b){b===undefined&&(b=!0);return this.each(function(){var c=this.type;if(c=="checkbox"||c=="radio")this.checked=b;else if(this.tagName.toLowerCase()=="option"){var d=a(this).parent("select");b&&d[0]&&d[0].type=="select-one"&&d.find("option").selected(!1),this.selected=b}})}})(jQuery);
/**
 * @file
 * Attaches behaviors for the Contextual module.
 */

(function ($) {

Drupal.contextualLinks = Drupal.contextualLinks || {};

/**
 * Attaches outline behavior for regions associated with contextual links.
 */
Drupal.behaviors.contextualLinks = {
  attach: function (context) {
    $('div.contextual-links-wrapper', context).once('contextual-links', function () {
      var $wrapper = $(this);
      var $region = $wrapper.closest('.contextual-links-region');
      var $links = $wrapper.find('ul.contextual-links');
      var $trigger = $('<a class="contextual-links-trigger" href="#" />').text(Drupal.t('Configure')).click(
        function () {
          $links.stop(true, true).slideToggle(100);
          $wrapper.toggleClass('contextual-links-active');
          return false;
        }
      );
      // Attach hover behavior to trigger and ul.contextual-links.
      $trigger.add($links).hover(
        function () { $region.addClass('contextual-links-region-active'); },
        function () { $region.removeClass('contextual-links-region-active'); }
      );
      // Hide the contextual links when user clicks a link or rolls out of the .contextual-links-region.
      $region.bind('mouseleave click', Drupal.contextualLinks.mouseleave);
      $region.hover(
        function() { $trigger.addClass('contextual-links-trigger-active'); },
        function() { $trigger.removeClass('contextual-links-trigger-active'); }
      );
      // Prepend the trigger.
      $wrapper.prepend($trigger);
    });
  }
};

/**
 * Disables outline for the region contextual links are associated with.
 */
Drupal.contextualLinks.mouseleave = function () {
  $(this)
    .find('.contextual-links-active').removeClass('contextual-links-active')
    .find('ul.contextual-links').hide();
};

})(jQuery);
;
(function ($) {

/**
 * Prevents consecutive form submissions of identical form values.
 *
 * Repetitive form submissions that would submit the identical form values are
 * prevented, unless the form values are different from the previously
 * submitted values.
 *
 * This is a simplified re-implementation of a user-agent behavior that should
 * be natively supported by major web browsers, but at this time, only Firefox
 * has a built-in protection.
 *
 * A form value-based approach ensures that the constraint is triggered for
 * consecutive, identical form submissions only. Compared to that, a form
 * button-based approach would (1) rely on [visible] buttons to exist where
 * technically not required and (2) require more complex state management if
 * there are multiple buttons in a form.
 *
 * This implementation is based on form-level submit events only and relies on
 * jQuery's serialize() method to determine submitted form values. As such, the
 * following limitations exist:
 *
 * - Event handlers on form buttons that preventDefault() do not receive a
 *   double-submit protection. That is deemed to be fine, since such button
 *   events typically trigger reversible client-side or server-side operations
 *   that are local to the context of a form only.
 * - Changed values in advanced form controls, such as file inputs, are not part
 *   of the form values being compared between consecutive form submits (due to
 *   limitations of jQuery.serialize()). That is deemed to be acceptable,
 *   because if the user forgot to attach a file, then the size of HTTP payload
 *   will most likely be small enough to be fully passed to the server endpoint
 *   within (milli)seconds. If a user mistakenly attached a wrong file and is
 *   technically versed enough to cancel the form submission (and HTTP payload)
 *   in order to attach a different file, then that edge-case is not supported
 *   here.
 *
 * Lastly, all forms submitted via HTTP GET are idempotent by definition of HTTP
 * standards, so excluded in this implementation.
 */
Drupal.behaviors.formSingleSubmit = {
  attach: function () {
    function onFormSubmit (e) {
      var $form = $(e.currentTarget);
      var formValues = $form.serialize();
      var previousValues = $form.attr('data-drupal-form-submit-last');
      if (previousValues === formValues) {
        e.preventDefault();
      }
      else {
        $form.attr('data-drupal-form-submit-last', formValues);
      }
    }

    $('body').once('form-single-submit')
      .delegate('form:not([method~="GET"])', 'submit.singleSubmit', onFormSubmit);
  }
};

})(jQuery);
;
(function ($) {

/**
 * Provides Ajax page updating via jQuery $.ajax (Asynchronous JavaScript and XML).
 *
 * Ajax is a method of making a request via JavaScript while viewing an HTML
 * page. The request returns an array of commands encoded in JSON, which is
 * then executed to make any changes that are necessary to the page.
 *
 * Drupal uses this file to enhance form elements with #ajax['path'] and
 * #ajax['wrapper'] properties. If set, this file will automatically be included
 * to provide Ajax capabilities.
 */

Drupal.ajax = Drupal.ajax || {};

Drupal.settings.urlIsAjaxTrusted = Drupal.settings.urlIsAjaxTrusted || {};

/**
 * Attaches the Ajax behavior to each Ajax form element.
 */
Drupal.behaviors.AJAX = {
  attach: function (context, settings) {
    // Load all Ajax behaviors specified in the settings.
    for (var base in settings.ajax) {
      if (!$('#' + base + '.ajax-processed').length) {
        var element_settings = settings.ajax[base];

        if (typeof element_settings.selector == 'undefined') {
          element_settings.selector = '#' + base;
        }
        $(element_settings.selector).each(function () {
          element_settings.element = this;
          Drupal.ajax[base] = new Drupal.ajax(base, this, element_settings);
        });

        $('#' + base).addClass('ajax-processed');
      }
    }

    // Bind Ajax behaviors to all items showing the class.
    $('.use-ajax:not(.ajax-processed)').addClass('ajax-processed').each(function () {
      var element_settings = {};
      // Clicked links look better with the throbber than the progress bar.
      element_settings.progress = { 'type': 'throbber' };

      // For anchor tags, these will go to the target of the anchor rather
      // than the usual location.
      if ($(this).attr('href')) {
        element_settings.url = $(this).attr('href');
        element_settings.event = 'click';
      }
      var base = $(this).attr('id');
      Drupal.ajax[base] = new Drupal.ajax(base, this, element_settings);
    });

    // This class means to submit the form to the action using Ajax.
    $('.use-ajax-submit:not(.ajax-processed)').addClass('ajax-processed').each(function () {
      var element_settings = {};

      // Ajax submits specified in this manner automatically submit to the
      // normal form action.
      element_settings.url = $(this.form).attr('action');
      // Form submit button clicks need to tell the form what was clicked so
      // it gets passed in the POST request.
      element_settings.setClick = true;
      // Form buttons use the 'click' event rather than mousedown.
      element_settings.event = 'click';
      // Clicked form buttons look better with the throbber than the progress bar.
      element_settings.progress = { 'type': 'throbber' };

      var base = $(this).attr('id');
      Drupal.ajax[base] = new Drupal.ajax(base, this, element_settings);
    });
  }
};

/**
 * Ajax object.
 *
 * All Ajax objects on a page are accessible through the global Drupal.ajax
 * object and are keyed by the submit button's ID. You can access them from
 * your module's JavaScript file to override properties or functions.
 *
 * For example, if your Ajax enabled button has the ID 'edit-submit', you can
 * redefine the function that is called to insert the new content like this
 * (inside a Drupal.behaviors attach block):
 * @code
 *    Drupal.behaviors.myCustomAJAXStuff = {
 *      attach: function (context, settings) {
 *        Drupal.ajax['edit-submit'].commands.insert = function (ajax, response, status) {
 *          new_content = $(response.data);
 *          $('#my-wrapper').append(new_content);
 *          alert('New content was appended to #my-wrapper');
 *        }
 *      }
 *    };
 * @endcode
 */
Drupal.ajax = function (base, element, element_settings) {
  var defaults = {
    url: 'system/ajax',
    event: 'mousedown',
    keypress: true,
    selector: '#' + base,
    effect: 'none',
    speed: 'none',
    method: 'replaceWith',
    progress: {
      type: 'throbber',
      message: Drupal.t('Please wait...')
    },
    submit: {
      'js': true
    }
  };

  $.extend(this, defaults, element_settings);

  this.element = element;
  this.element_settings = element_settings;

  // Replacing 'nojs' with 'ajax' in the URL allows for an easy method to let
  // the server detect when it needs to degrade gracefully.
  // There are five scenarios to check for:
  // 1. /nojs/
  // 2. /nojs$ - The end of a URL string.
  // 3. /nojs? - Followed by a query (with clean URLs enabled).
  //      E.g.: path/nojs?destination=foobar
  // 4. /nojs& - Followed by a query (without clean URLs enabled).
  //      E.g.: ?q=path/nojs&destination=foobar
  // 5. /nojs# - Followed by a fragment.
  //      E.g.: path/nojs#myfragment
  this.url = element_settings.url.replace(/\/nojs(\/|$|\?|&|#)/g, '/ajax$1');
  // If the 'nojs' version of the URL is trusted, also trust the 'ajax' version.
  if (Drupal.settings.urlIsAjaxTrusted[element_settings.url]) {
    Drupal.settings.urlIsAjaxTrusted[this.url] = true;
  }

  this.wrapper = '#' + element_settings.wrapper;

  // If there isn't a form, jQuery.ajax() will be used instead, allowing us to
  // bind Ajax to links as well.
  if (this.element.form) {
    this.form = $(this.element.form);
  }

  // Set the options for the ajaxSubmit function.
  // The 'this' variable will not persist inside of the options object.
  var ajax = this;
  ajax.options = {
    url: Drupal.sanitizeAjaxUrl(ajax.url),
    data: ajax.submit,
    beforeSerialize: function (element_settings, options) {
      return ajax.beforeSerialize(element_settings, options);
    },
    beforeSubmit: function (form_values, element_settings, options) {
      ajax.ajaxing = true;
      return ajax.beforeSubmit(form_values, element_settings, options);
    },
    beforeSend: function (xmlhttprequest, options) {
      ajax.ajaxing = true;
      return ajax.beforeSend(xmlhttprequest, options);
    },
    success: function (response, status, xmlhttprequest) {
      // Sanity check for browser support (object expected).
      // When using iFrame uploads, responses must be returned as a string.
      if (typeof response == 'string') {
        response = $.parseJSON(response);
      }

      // Prior to invoking the response's commands, verify that they can be
      // trusted by checking for a response header. See
      // ajax_set_verification_header() for details.
      // - Empty responses are harmless so can bypass verification. This avoids
      //   an alert message for server-generated no-op responses that skip Ajax
      //   rendering.
      // - Ajax objects with trusted URLs (e.g., ones defined server-side via
      //   #ajax) can bypass header verification. This is especially useful for
      //   Ajax with multipart forms. Because IFRAME transport is used, the
      //   response headers cannot be accessed for verification.
      if (response !== null && !Drupal.settings.urlIsAjaxTrusted[ajax.url]) {
        if (xmlhttprequest.getResponseHeader('X-Drupal-Ajax-Token') !== '1') {
          var customMessage = Drupal.t("The response failed verification so will not be processed.");
          return ajax.error(xmlhttprequest, ajax.url, customMessage);
        }
      }

      return ajax.success(response, status);
    },
    complete: function (xmlhttprequest, status) {
      ajax.ajaxing = false;
      if (status == 'error' || status == 'parsererror') {
        return ajax.error(xmlhttprequest, ajax.url);
      }
    },
    dataType: 'json',
    jsonp: false,
    type: 'POST'
  };

  // For multipart forms (e.g., file uploads), jQuery Form targets the form
  // submission to an iframe instead of using an XHR object. The initial "src"
  // of the iframe, prior to the form submission, is set to options.iframeSrc.
  // "about:blank" is the semantically correct, standards-compliant, way to
  // initialize a blank iframe; however, some old IE versions (possibly only 6)
  // incorrectly report a mixed content warning when iframes with an
  // "about:blank" src are added to a parent document with an https:// origin.
  // jQuery Form works around this by defaulting to "javascript:false" instead,
  // but that breaks on Chrome 83, so here we force the semantically correct
  // behavior for all browsers except old IE.
  // @see https://www.drupal.org/project/drupal/issues/3143016
  // @see https://github.com/jquery-form/form/blob/df9cb101b9c9c085c8d75ad980c7ff1cf62063a1/jquery.form.js#L68
  // @see https://bugs.chromium.org/p/chromium/issues/detail?id=1084874
  // @see https://html.spec.whatwg.org/multipage/browsers.html#creating-browsing-contexts
  // @see https://developer.mozilla.org/en-US/docs/Web/Security/Same-origin_policy
  if (navigator.userAgent.indexOf("MSIE") === -1) {
    ajax.options.iframeSrc = 'about:blank';
  }

  // Bind the ajaxSubmit function to the element event.
  $(ajax.element).bind(element_settings.event, function (event) {
    if (!Drupal.settings.urlIsAjaxTrusted[ajax.url] && !Drupal.urlIsLocal(ajax.url)) {
      throw new Error(Drupal.t('The callback URL is not local and not trusted: !url', {'!url': ajax.url}));
    }
    return ajax.eventResponse(this, event);
  });

  // If necessary, enable keyboard submission so that Ajax behaviors
  // can be triggered through keyboard input as well as e.g. a mousedown
  // action.
  if (element_settings.keypress) {
    $(ajax.element).keypress(function (event) {
      return ajax.keypressResponse(this, event);
    });
  }

  // If necessary, prevent the browser default action of an additional event.
  // For example, prevent the browser default action of a click, even if the
  // AJAX behavior binds to mousedown.
  if (element_settings.prevent) {
    $(ajax.element).bind(element_settings.prevent, false);
  }
};

/**
 * Handle a key press.
 *
 * The Ajax object will, if instructed, bind to a key press response. This
 * will test to see if the key press is valid to trigger this event and
 * if it is, trigger it for us and prevent other keypresses from triggering.
 * In this case we're handling RETURN and SPACEBAR keypresses (event codes 13
 * and 32. RETURN is often used to submit a form when in a textfield, and 
 * SPACE is often used to activate an element without submitting. 
 */
Drupal.ajax.prototype.keypressResponse = function (element, event) {
  // Create a synonym for this to reduce code confusion.
  var ajax = this;

  // Detect enter key and space bar and allow the standard response for them,
  // except for form elements of type 'text' and 'textarea', where the 
  // spacebar activation causes inappropriate activation if #ajax['keypress'] is 
  // TRUE. On a text-type widget a space should always be a space.
  if (event.which == 13 || (event.which == 32 && element.type != 'text' && element.type != 'textarea')) {
    $(ajax.element_settings.element).trigger(ajax.element_settings.event);
    return false;
  }
};

/**
 * Handle an event that triggers an Ajax response.
 *
 * When an event that triggers an Ajax response happens, this method will
 * perform the actual Ajax call. It is bound to the event using
 * bind() in the constructor, and it uses the options specified on the
 * ajax object.
 */
Drupal.ajax.prototype.eventResponse = function (element, event) {
  // Create a synonym for this to reduce code confusion.
  var ajax = this;

  // Do not perform another ajax command if one is already in progress.
  if (ajax.ajaxing) {
    return false;
  }

  try {
    if (ajax.form) {
      // If setClick is set, we must set this to ensure that the button's
      // value is passed.
      if (ajax.setClick) {
        // Mark the clicked button. 'form.clk' is a special variable for
        // ajaxSubmit that tells the system which element got clicked to
        // trigger the submit. Without it there would be no 'op' or
        // equivalent.
        element.form.clk = element;
      }

      ajax.form.ajaxSubmit(ajax.options);
    }
    else {
      ajax.beforeSerialize(ajax.element, ajax.options);
      $.ajax(ajax.options);
    }
  }
  catch (e) {
    // Unset the ajax.ajaxing flag here because it won't be unset during
    // the complete response.
    ajax.ajaxing = false;
    alert("An error occurred while attempting to process " + ajax.options.url + ": " + e.message);
  }

  // For radio/checkbox, allow the default event. On IE, this means letting
  // it actually check the box.
  if (typeof element.type != 'undefined' && (element.type == 'checkbox' || element.type == 'radio')) {
    return true;
  }
  else {
    return false;
  }

};

/**
 * Handler for the form serialization.
 *
 * Runs before the beforeSend() handler (see below), and unlike that one, runs
 * before field data is collected.
 */
Drupal.ajax.prototype.beforeSerialize = function (element, options) {
  // Allow detaching behaviors to update field values before collecting them.
  // This is only needed when field values are added to the POST data, so only
  // when there is a form such that this.form.ajaxSubmit() is used instead of
  // $.ajax(). When there is no form and $.ajax() is used, beforeSerialize()
  // isn't called, but don't rely on that: explicitly check this.form.
  if (this.form) {
    var settings = this.settings || Drupal.settings;
    Drupal.detachBehaviors(this.form, settings, 'serialize');
  }

  // Prevent duplicate HTML ids in the returned markup.
  // @see drupal_html_id()
  options.data['ajax_html_ids[]'] = [];
  $('[id]').each(function () {
    options.data['ajax_html_ids[]'].push(this.id);
  });

  // Allow Drupal to return new JavaScript and CSS files to load without
  // returning the ones already loaded.
  // @see ajax_base_page_theme()
  // @see drupal_get_css()
  // @see drupal_get_js()
  options.data['ajax_page_state[theme]'] = Drupal.settings.ajaxPageState.theme;
  options.data['ajax_page_state[theme_token]'] = Drupal.settings.ajaxPageState.theme_token;
  for (var key in Drupal.settings.ajaxPageState.css) {
    options.data['ajax_page_state[css][' + key + ']'] = 1;
  }
  for (var key in Drupal.settings.ajaxPageState.js) {
    options.data['ajax_page_state[js][' + key + ']'] = 1;
  }
};

/**
 * Modify form values prior to form submission.
 */
Drupal.ajax.prototype.beforeSubmit = function (form_values, element, options) {
  // This function is left empty to make it simple to override for modules
  // that wish to add functionality here.
};

/**
 * Prepare the Ajax request before it is sent.
 */
Drupal.ajax.prototype.beforeSend = function (xmlhttprequest, options) {
  // For forms without file inputs, the jQuery Form plugin serializes the form
  // values, and then calls jQuery's $.ajax() function, which invokes this
  // handler. In this circumstance, options.extraData is never used. For forms
  // with file inputs, the jQuery Form plugin uses the browser's normal form
  // submission mechanism, but captures the response in a hidden IFRAME. In this
  // circumstance, it calls this handler first, and then appends hidden fields
  // to the form to submit the values in options.extraData. There is no simple
  // way to know which submission mechanism will be used, so we add to extraData
  // regardless, and allow it to be ignored in the former case.
  if (this.form) {
    options.extraData = options.extraData || {};

    // Let the server know when the IFRAME submission mechanism is used. The
    // server can use this information to wrap the JSON response in a TEXTAREA,
    // as per http://jquery.malsup.com/form/#file-upload.
    options.extraData.ajax_iframe_upload = '1';

    // The triggering element is about to be disabled (see below), but if it
    // contains a value (e.g., a checkbox, textfield, select, etc.), ensure that
    // value is included in the submission. As per above, submissions that use
    // $.ajax() are already serialized prior to the element being disabled, so
    // this is only needed for IFRAME submissions.
    var v = $.fieldValue(this.element);
    if (v !== null) {
      options.extraData[this.element.name] = Drupal.checkPlain(v);
    }
  }

  // Disable the element that received the change to prevent user interface
  // interaction while the Ajax request is in progress. ajax.ajaxing prevents
  // the element from triggering a new request, but does not prevent the user
  // from changing its value.
  $(this.element).addClass('progress-disabled').attr('disabled', true);

  // Insert progressbar or throbber.
  if (this.progress.type == 'bar') {
    var progressBar = new Drupal.progressBar('ajax-progress-' + this.element.id, $.noop, this.progress.method, $.noop);
    if (this.progress.message) {
      progressBar.setProgress(-1, this.progress.message);
    }
    if (this.progress.url) {
      progressBar.startMonitoring(this.progress.url, this.progress.interval || 1500);
    }
    this.progress.element = $(progressBar.element).addClass('ajax-progress ajax-progress-bar');
    this.progress.object = progressBar;
    $(this.element).after(this.progress.element);
  }
  else if (this.progress.type == 'throbber') {
    this.progress.element = $('<div class="ajax-progress ajax-progress-throbber"><div class="throbber">&nbsp;</div></div>');
    if (this.progress.message) {
      $('.throbber', this.progress.element).after('<div class="message">' + this.progress.message + '</div>');
    }
    $(this.element).after(this.progress.element);
  }
};

/**
 * Handler for the form redirection completion.
 */
Drupal.ajax.prototype.success = function (response, status) {
  // Remove the progress element.
  if (this.progress.element) {
    $(this.progress.element).remove();
  }
  if (this.progress.object) {
    this.progress.object.stopMonitoring();
  }
  $(this.element).removeClass('progress-disabled').removeAttr('disabled');

  Drupal.freezeHeight();

  for (var i in response) {
    if (response.hasOwnProperty(i) && response[i]['command'] && this.commands[response[i]['command']]) {
      this.commands[response[i]['command']](this, response[i], status);
    }
  }

  // Reattach behaviors, if they were detached in beforeSerialize(). The
  // attachBehaviors() called on the new content from processing the response
  // commands is not sufficient, because behaviors from the entire form need
  // to be reattached.
  if (this.form) {
    var settings = this.settings || Drupal.settings;
    Drupal.attachBehaviors(this.form, settings);
  }

  Drupal.unfreezeHeight();

  // Remove any response-specific settings so they don't get used on the next
  // call by mistake.
  this.settings = null;
};

/**
 * Build an effect object which tells us how to apply the effect when adding new HTML.
 */
Drupal.ajax.prototype.getEffect = function (response) {
  var type = response.effect || this.effect;
  var speed = response.speed || this.speed;

  var effect = {};
  if (type == 'none') {
    effect.showEffect = 'show';
    effect.hideEffect = 'hide';
    effect.showSpeed = '';
  }
  else if (type == 'fade') {
    effect.showEffect = 'fadeIn';
    effect.hideEffect = 'fadeOut';
    effect.showSpeed = speed;
  }
  else {
    effect.showEffect = type + 'Toggle';
    effect.hideEffect = type + 'Toggle';
    effect.showSpeed = speed;
  }

  return effect;
};

/**
 * Handler for the form redirection error.
 */
Drupal.ajax.prototype.error = function (xmlhttprequest, uri, customMessage) {
  Drupal.displayAjaxError(Drupal.ajaxError(xmlhttprequest, uri, customMessage));
  // Remove the progress element.
  if (this.progress.element) {
    $(this.progress.element).remove();
  }
  if (this.progress.object) {
    this.progress.object.stopMonitoring();
  }
  // Undo hide.
  $(this.wrapper).show();
  // Re-enable the element.
  $(this.element).removeClass('progress-disabled').removeAttr('disabled');
  // Reattach behaviors, if they were detached in beforeSerialize().
  if (this.form) {
    var settings = this.settings || Drupal.settings;
    Drupal.attachBehaviors(this.form, settings);
  }
};

/**
 * Provide a series of commands that the server can request the client perform.
 */
Drupal.ajax.prototype.commands = {
  /**
   * Command to insert new content into the DOM.
   */
  insert: function (ajax, response, status) {
    // Get information from the response. If it is not there, default to
    // our presets.
    var wrapper = response.selector ? $(response.selector) : $(ajax.wrapper);
    var method = response.method || ajax.method;
    var effect = ajax.getEffect(response);

    // We don't know what response.data contains: it might be a string of text
    // without HTML, so don't rely on jQuery correctly iterpreting
    // $(response.data) as new HTML rather than a CSS selector. Also, if
    // response.data contains top-level text nodes, they get lost with either
    // $(response.data) or $('<div></div>').replaceWith(response.data).
    var new_content_wrapped = $('<div></div>').html(response.data);
    var new_content = new_content_wrapped.contents();

    // For legacy reasons, the effects processing code assumes that new_content
    // consists of a single top-level element. Also, it has not been
    // sufficiently tested whether attachBehaviors() can be successfully called
    // with a context object that includes top-level text nodes. However, to
    // give developers full control of the HTML appearing in the page, and to
    // enable Ajax content to be inserted in places where DIV elements are not
    // allowed (e.g., within TABLE, TR, and SPAN parents), we check if the new
    // content satisfies the requirement of a single top-level element, and
    // only use the container DIV created above when it doesn't. For more
    // information, please see http://drupal.org/node/736066.
    if (new_content.length != 1 || new_content.get(0).nodeType != 1) {
      new_content = new_content_wrapped;
    }

    // If removing content from the wrapper, detach behaviors first.
    switch (method) {
      case 'html':
      case 'replaceWith':
      case 'replaceAll':
      case 'empty':
      case 'remove':
        var settings = response.settings || ajax.settings || Drupal.settings;
        Drupal.detachBehaviors(wrapper, settings);
    }

    // Add the new content to the page.
    wrapper[method](new_content);

    // Immediately hide the new content if we're using any effects.
    if (effect.showEffect != 'show') {
      new_content.hide();
    }

    // Determine which effect to use and what content will receive the
    // effect, then show the new content.
    if ($('.ajax-new-content', new_content).length > 0) {
      $('.ajax-new-content', new_content).hide();
      new_content.show();
      $('.ajax-new-content', new_content)[effect.showEffect](effect.showSpeed);
    }
    else if (effect.showEffect != 'show') {
      new_content[effect.showEffect](effect.showSpeed);
    }

    // Attach all JavaScript behaviors to the new content, if it was successfully
    // added to the page, this if statement allows #ajax['wrapper'] to be
    // optional.
    if (new_content.parents('html').length > 0) {
      // Apply any settings from the returned JSON if available.
      var settings = response.settings || ajax.settings || Drupal.settings;
      Drupal.attachBehaviors(new_content, settings);
    }
  },

  /**
   * Command to remove a chunk from the page.
   */
  remove: function (ajax, response, status) {
    var settings = response.settings || ajax.settings || Drupal.settings;
    Drupal.detachBehaviors($(response.selector), settings);
    $(response.selector).remove();
  },

  /**
   * Command to mark a chunk changed.
   */
  changed: function (ajax, response, status) {
    if (!$(response.selector).hasClass('ajax-changed')) {
      $(response.selector).addClass('ajax-changed');
      if (response.asterisk) {
        $(response.selector).find(response.asterisk).append(' <span class="ajax-changed">*</span> ');
      }
    }
  },

  /**
   * Command to provide an alert.
   */
  alert: function (ajax, response, status) {
    alert(response.text, response.title);
  },

  /**
   * Command to provide the jQuery css() function.
   */
  css: function (ajax, response, status) {
    $(response.selector).css(response.argument);
  },

  /**
   * Command to set the settings that will be used for other commands in this response.
   */
  settings: function (ajax, response, status) {
    if (response.merge) {
      $.extend(true, Drupal.settings, response.settings);
    }
    else {
      ajax.settings = response.settings;
    }
  },

  /**
   * Command to attach data using jQuery's data API.
   */
  data: function (ajax, response, status) {
    $(response.selector).data(response.name, response.value);
  },

  /**
   * Command to apply a jQuery method.
   */
  invoke: function (ajax, response, status) {
    var $element = $(response.selector);
    $element[response.method].apply($element, response.arguments);
  },

  /**
   * Command to restripe a table.
   */
  restripe: function (ajax, response, status) {
    // :even and :odd are reversed because jQuery counts from 0 and
    // we count from 1, so we're out of sync.
    // Match immediate children of the parent element to allow nesting.
    $('> tbody > tr:visible, > tr:visible', $(response.selector))
      .removeClass('odd even')
      .filter(':even').addClass('odd').end()
      .filter(':odd').addClass('even');
  },

  /**
   * Command to add css.
   *
   * Uses the proprietary addImport method if available as browsers which
   * support that method ignore @import statements in dynamically added
   * stylesheets.
   */
  add_css: function (ajax, response, status) {
    // Add the styles in the normal way.
    $('head').prepend(response.data);
    // Add imports in the styles using the addImport method if available.
    var match, importMatch = /^@import url\("(.*)"\);$/igm;
    if (document.styleSheets[0].addImport && importMatch.test(response.data)) {
      importMatch.lastIndex = 0;
      while (match = importMatch.exec(response.data)) {
        document.styleSheets[0].addImport(match[1]);
      }
    }
  },

  /**
   * Command to update a form's build ID.
   */
  updateBuildId: function(ajax, response, status) {
    $('input[name="form_build_id"][value="' + response['old'] + '"]').val(response['new']);
  }
};

})(jQuery);
;
(function (D) {
  var beforeSerialize = D.ajax.prototype.beforeSerialize;
  D.ajax.prototype.beforeSerialize = function (element, options) {
    beforeSerialize.call(this, element, options);
    options.data['ajax_page_state[jquery_version]'] = D.settings.ajaxPageState.jquery_version;
  }
})(Drupal);
;
