drupal/core/misc/ajax.js

/**
* DO NOT EDIT THIS FILE.
* See the following change record for more information,
* https://www.drupal.org/node/2815083
* @preserve
**/

(function ($, window, Drupal, drupalSettings) {

  'use strict';

  Drupal.behaviors.AJAX = {
    attach: function attach(context, settings) {

      function loadAjaxBehavior(base) {
        var element_settings = settings.ajax[base];
        if (typeof element_settings.selector === 'undefined') {
          element_settings.selector = '#' + base;
        }
        $(element_settings.selector).once('drupal-ajax').each(function () {
          element_settings.element = this;
          element_settings.base = base;
          Drupal.ajax(element_settings);
        });
      }

      for (var base in settings.ajax) {
        if (settings.ajax.hasOwnProperty(base)) {
          loadAjaxBehavior(base);
        }
      }

      $('.use-ajax').once('ajax').each(function () {
        var element_settings = {};

        element_settings.progress = { type: 'throbber' };

        var href = $(this).attr('href');
        if (href) {
          element_settings.url = href;
          element_settings.event = 'click';
        }
        element_settings.dialogType = $(this).data('dialog-type');
        element_settings.dialog = $(this).data('dialog-options');
        element_settings.base = $(this).attr('id');
        element_settings.element = this;
        Drupal.ajax(element_settings);
      });

      $('.use-ajax-submit').once('ajax').each(function () {
        var element_settings = {};

        element_settings.url = $(this.form).attr('action');

        element_settings.setClick = true;

        element_settings.event = 'click';

        element_settings.progress = { type: 'throbber' };
        element_settings.base = $(this).attr('id');
        element_settings.element = this;

        Drupal.ajax(element_settings);
      });
    },

    detach: function detach(context, settings, trigger) {
      if (trigger === 'unload') {
        Drupal.ajax.expired().forEach(function (instance) {
          Drupal.ajax.instances[instance.instanceIndex] = null;
        });
      }
    }
  };

  Drupal.AjaxError = function (xmlhttp, uri, customMessage) {

    var statusCode;
    var statusText;
    var pathText;
    var responseText;
    var readyStateText;
    if (xmlhttp.status) {
      statusCode = '\n' + Drupal.t('An AJAX HTTP error occurred.') + '\n' + Drupal.t('HTTP Result Code: !status', { '!status': xmlhttp.status });
    } else {
      statusCode = '\n' + Drupal.t('An AJAX HTTP request terminated abnormally.');
    }
    statusCode += '\n' + Drupal.t('Debugging information follows.');
    pathText = '\n' + Drupal.t('Path: !uri', { '!uri': uri });
    statusText = '';

    try {
      statusText = '\n' + Drupal.t('StatusText: !statusText', { '!statusText': $.trim(xmlhttp.statusText) });
    } catch (e) {}

    responseText = '';

    try {
      responseText = '\n' + Drupal.t('ResponseText: !responseText', { '!responseText': $.trim(xmlhttp.responseText) });
    } catch (e) {}

    responseText = responseText.replace(/<("[^"]*"|'[^']*'|[^'">])*>/gi, '');
    responseText = responseText.replace(/[\n]+\s+/g, '\n');

    readyStateText = xmlhttp.status === 0 ? '\n' + Drupal.t('ReadyState: !readyState', { '!readyState': xmlhttp.readyState }) : '';

    customMessage = customMessage ? '\n' + Drupal.t('CustomMessage: !customMessage', { '!customMessage': customMessage }) : '';

    this.message = statusCode + pathText + statusText + customMessage + responseText + readyStateText;

    this.name = 'AjaxError';
  };

  Drupal.AjaxError.prototype = new Error();
  Drupal.AjaxError.prototype.constructor = Drupal.AjaxError;

  Drupal.ajax = function (settings) {
    if (arguments.length !== 1) {
      throw new Error('Drupal.ajax() function must be called with one configuration object only');
    }

    var base = settings.base || false;
    var element = settings.element || false;
    delete settings.base;
    delete settings.element;

    if (!settings.progress && !element) {
      settings.progress = false;
    }

    var ajax = new Drupal.Ajax(base, element, settings);
    ajax.instanceIndex = Drupal.ajax.instances.length;
    Drupal.ajax.instances.push(ajax);

    return ajax;
  };

  Drupal.ajax.instances = [];

  Drupal.ajax.expired = function () {
    return Drupal.ajax.instances.filter(function (instance) {
      return instance && instance.element !== false && !document.body.contains(instance.element);
    });
  };

  Drupal.Ajax = function (base, element, element_settings) {
    var defaults = {
      event: element ? 'mousedown' : null,
      keypress: true,
      selector: base ? '#' + base : null,
      effect: 'none',
      speed: 'none',
      method: 'replaceWith',
      progress: {
        type: 'throbber',
        message: Drupal.t('Please wait...')
      },
      submit: {
        js: true
      }
    };

    $.extend(this, defaults, element_settings);

    this.commands = new Drupal.AjaxCommands();

    this.instanceIndex = false;

    if (this.wrapper) {
      this.wrapper = '#' + this.wrapper;
    }

    this.element = element;

    this.element_settings = element_settings;

    if (this.element && this.element.form) {
      this.$form = $(this.element.form);
    }

    if (!this.url) {
      var $element = $(this.element);
      if ($element.is('a')) {
        this.url = $element.attr('href');
      } else if (this.element && element.form) {
        this.url = this.$form.attr('action');
      }
    }

    var originalUrl = this.url;

    this.url = this.url.replace(/\/nojs(\/|$|\?|#)/g, '/ajax$1');

    if (drupalSettings.ajaxTrustedUrl[originalUrl]) {
      drupalSettings.ajaxTrustedUrl[this.url] = true;
    }

    var ajax = this;

    ajax.options = {
      url: ajax.url,
      data: ajax.submit,
      beforeSerialize: function beforeSerialize(element_settings, options) {
        return ajax.beforeSerialize(element_settings, options);
      },
      beforeSubmit: function beforeSubmit(form_values, element_settings, options) {
        ajax.ajaxing = true;
        return ajax.beforeSubmit(form_values, element_settings, options);
      },
      beforeSend: function beforeSend(xmlhttprequest, options) {
        ajax.ajaxing = true;
        return ajax.beforeSend(xmlhttprequest, options);
      },
      success: function success(response, status, xmlhttprequest) {
        if (typeof response === 'string') {
          response = $.parseJSON(response);
        }

        if (response !== null && !drupalSettings.ajaxTrustedUrl[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 complete(xmlhttprequest, status) {
        ajax.ajaxing = false;
        if (status === 'error' || status === 'parsererror') {
          return ajax.error(xmlhttprequest, ajax.url);
        }
      },
      dataType: 'json',
      type: 'POST'
    };

    if (element_settings.dialog) {
      ajax.options.data.dialogOptions = element_settings.dialog;
    }

    if (ajax.options.url.indexOf('?') === -1) {
      ajax.options.url += '?';
    } else {
      ajax.options.url += '&';
    }
    ajax.options.url += Drupal.ajax.WRAPPER_FORMAT + '=drupal_' + (element_settings.dialogType || 'ajax');

    $(ajax.element).on(element_settings.event, function (event) {
      if (!drupalSettings.ajaxTrustedUrl[ajax.url] && !Drupal.url.isLocal(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 (element_settings.keypress) {
      $(ajax.element).on('keypress', function (event) {
        return ajax.keypressResponse(this, event);
      });
    }

    if (element_settings.prevent) {
      $(ajax.element).on(element_settings.prevent, false);
    }
  };

  Drupal.ajax.WRAPPER_FORMAT = '_wrapper_format';

  Drupal.Ajax.AJAX_REQUEST_PARAMETER = '_drupal_ajax';

  Drupal.Ajax.prototype.execute = function () {
    if (this.ajaxing) {
      return;
    }

    try {
      this.beforeSerialize(this.element, this.options);

      return $.ajax(this.options);
    } catch (e) {
      this.ajaxing = false;
      window.alert('An error occurred while attempting to process ' + this.options.url + ': ' + e.message);

      return $.Deferred().reject();
    }
  };

  Drupal.Ajax.prototype.keypressResponse = function (element, event) {
    var ajax = this;

    if (event.which === 13 || event.which === 32 && element.type !== 'text' && element.type !== 'textarea' && element.type !== 'tel' && element.type !== 'number') {
      event.preventDefault();
      event.stopPropagation();
      $(element).trigger(ajax.element_settings.event);
    }
  };

  Drupal.Ajax.prototype.eventResponse = function (element, event) {
    event.preventDefault();
    event.stopPropagation();

    var ajax = this;

    if (ajax.ajaxing) {
      return;
    }

    try {
      if (ajax.$form) {
        if (ajax.setClick) {
          element.form.clk = element;
        }

        ajax.$form.ajaxSubmit(ajax.options);
      } else {
        ajax.beforeSerialize(ajax.element, ajax.options);
        $.ajax(ajax.options);
      }
    } catch (e) {
      ajax.ajaxing = false;
      window.alert('An error occurred while attempting to process ' + ajax.options.url + ': ' + e.message);
    }
  };

  Drupal.Ajax.prototype.beforeSerialize = function (element, options) {
    if (this.$form) {
      var settings = this.settings || drupalSettings;
      Drupal.detachBehaviors(this.$form.get(0), settings, 'serialize');
    }

    options.data[Drupal.Ajax.AJAX_REQUEST_PARAMETER] = 1;

    var pageState = drupalSettings.ajaxPageState;
    options.data['ajax_page_state[theme]'] = pageState.theme;
    options.data['ajax_page_state[theme_token]'] = pageState.theme_token;
    options.data['ajax_page_state[libraries]'] = pageState.libraries;
  };

  Drupal.Ajax.prototype.beforeSubmit = function (form_values, element, options) {};

  Drupal.Ajax.prototype.beforeSend = function (xmlhttprequest, options) {
    if (this.$form) {
      options.extraData = options.extraData || {};

      options.extraData.ajax_iframe_upload = '1';

      var v = $.fieldValue(this.element);
      if (v !== null) {
        options.extraData[this.element.name] = v;
      }
    }

    $(this.element).prop('disabled', true);

    if (!this.progress || !this.progress.type) {
      return;
    }

    var progressIndicatorMethod = 'setProgressIndicator' + this.progress.type.slice(0, 1).toUpperCase() + this.progress.type.slice(1).toLowerCase();
    if (progressIndicatorMethod in this && typeof this[progressIndicatorMethod] === 'function') {
      this[progressIndicatorMethod].call(this);
    }
  };

  Drupal.Ajax.prototype.setProgressIndicatorBar = function () {
    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);
  };

  Drupal.Ajax.prototype.setProgressIndicatorThrobber = function () {
    this.progress.element = $('<div class="ajax-progress ajax-progress-throbber"><div class="throbber">&nbsp;</div></div>');
    if (this.progress.message) {
      this.progress.element.find('.throbber').after('<div class="message">' + this.progress.message + '</div>');
    }
    $(this.element).after(this.progress.element);
  };

  Drupal.Ajax.prototype.setProgressIndicatorFullscreen = function () {
    this.progress.element = $('<div class="ajax-progress ajax-progress-fullscreen">&nbsp;</div>');
    $('body').after(this.progress.element);
  };

  Drupal.Ajax.prototype.success = function (response, status) {
    if (this.progress.element) {
      $(this.progress.element).remove();
    }
    if (this.progress.object) {
      this.progress.object.stopMonitoring();
    }
    $(this.element).prop('disabled', false);

    var elementParents = $(this.element).parents('[data-drupal-selector]').addBack().toArray();

    var focusChanged = false;
    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);
        if (response[i].command === 'invoke' && response[i].method === 'focus') {
          focusChanged = true;
        }
      }
    }

    if (!focusChanged && this.element && !$(this.element).data('disable-refocus')) {
      var target = false;

      for (var n = elementParents.length - 1; !target && n > 0; n--) {
        target = document.querySelector('[data-drupal-selector="' + elementParents[n].getAttribute('data-drupal-selector') + '"]');
      }

      if (target) {
        $(target).trigger('focus');
      }
    }

    if (this.$form) {
      var settings = this.settings || drupalSettings;
      Drupal.attachBehaviors(this.$form.get(0), settings);
    }

    this.settings = null;
  };

  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;
  };

  Drupal.Ajax.prototype.error = function (xmlhttprequest, uri, customMessage) {
    if (this.progress.element) {
      $(this.progress.element).remove();
    }
    if (this.progress.object) {
      this.progress.object.stopMonitoring();
    }

    $(this.wrapper).show();

    $(this.element).prop('disabled', false);

    if (this.$form) {
      var settings = this.settings || drupalSettings;
      Drupal.attachBehaviors(this.$form.get(0), settings);
    }
    throw new Drupal.AjaxError(xmlhttprequest, uri, customMessage);
  };

  Drupal.AjaxCommands = function () {};
  Drupal.AjaxCommands.prototype = {
    insert: function insert(ajax, response, status) {
      var $wrapper = response.selector ? $(response.selector) : $(ajax.wrapper);
      var method = response.method || ajax.method;
      var effect = ajax.getEffect(response);
      var settings;

      var $new_content_wrapped = $('<div></div>').html(response.data);
      var $new_content = $new_content_wrapped.contents();

      if ($new_content.length !== 1 || $new_content.get(0).nodeType !== 1) {
        $new_content = $new_content_wrapped;
      }

      switch (method) {
        case 'html':
        case 'replaceWith':
        case 'replaceAll':
        case 'empty':
        case 'remove':
          settings = response.settings || ajax.settings || drupalSettings;
          Drupal.detachBehaviors($wrapper.get(0), settings);
      }

      $wrapper[method]($new_content);

      if (effect.showEffect !== 'show') {
        $new_content.hide();
      }

      if ($new_content.find('.ajax-new-content').length > 0) {
        $new_content.find('.ajax-new-content').hide();
        $new_content.show();
        $new_content.find('.ajax-new-content')[effect.showEffect](effect.showSpeed);
      } else if (effect.showEffect !== 'show') {
        $new_content[effect.showEffect](effect.showSpeed);
      }

      if ($new_content.parents('html').length > 0) {
        settings = response.settings || ajax.settings || drupalSettings;
        Drupal.attachBehaviors($new_content.get(0), settings);
      }
    },

    remove: function remove(ajax, response, status) {
      var settings = response.settings || ajax.settings || drupalSettings;
      $(response.selector).each(function () {
        Drupal.detachBehaviors(this, settings);
      }).remove();
    },

    changed: function changed(ajax, response, status) {
      var $element = $(response.selector);
      if (!$element.hasClass('ajax-changed')) {
        $element.addClass('ajax-changed');
        if (response.asterisk) {
          $element.find(response.asterisk).append(' <abbr class="ajax-changed" title="' + Drupal.t('Changed') + '">*</abbr> ');
        }
      }
    },

    alert: function alert(ajax, response, status) {
      window.alert(response.text, response.title);
    },

    redirect: function redirect(ajax, response, status) {
      window.location = response.url;
    },

    css: function css(ajax, response, status) {
      $(response.selector).css(response.argument);
    },

    settings: function settings(ajax, response, status) {
      var ajaxSettings = drupalSettings.ajax;

      if (ajaxSettings) {
        Drupal.ajax.expired().forEach(function (instance) {

          if (instance.selector) {
            var selector = instance.selector.replace('#', '');
            if (selector in ajaxSettings) {
              delete ajaxSettings[selector];
            }
          }
        });
      }

      if (response.merge) {
        $.extend(true, drupalSettings, response.settings);
      } else {
        ajax.settings = response.settings;
      }
    },

    data: function data(ajax, response, status) {
      $(response.selector).data(response.name, response.value);
    },

    invoke: function invoke(ajax, response, status) {
      var $element = $(response.selector);
      $element[response.method].apply($element, response.args);
    },

    restripe: function restripe(ajax, response, status) {
      $(response.selector).find('> tbody > tr:visible, > tr:visible').removeClass('odd even').filter(':even').addClass('odd').end().filter(':odd').addClass('even');
    },

    update_build_id: function update_build_id(ajax, response, status) {
      $('input[name="form_build_id"][value="' + response.old + '"]').val(response.new);
    },

    add_css: function add_css(ajax, response, status) {
      $('head').prepend(response.data);

      var match;
      var importMatch = /^@import url\("(.*)"\);$/igm;
      if (document.styleSheets[0].addImport && importMatch.test(response.data)) {
        importMatch.lastIndex = 0;
        do {
          match = importMatch.exec(response.data);
          document.styleSheets[0].addImport(match[1]);
        } while (match);
      }
    }
  };
})(jQuery, window, Drupal, drupalSettings);