Move into nested docroot

web/core/modules/views/js/ajax_view.js

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+/**
+ * @file
+ * Handles AJAX fetching of views, including filter submission and response.
+ */
+
+(function ($, Drupal, drupalSettings) {
+
+  'use strict';
+
+  /**
+   * Attaches the AJAX behavior to exposed filters forms and key View links.
+   *
+   * @type {Drupal~behavior}
+   *
+   * @prop {Drupal~behaviorAttach} attach
+   *   Attaches ajaxView functionality to relevant elements.
+   */
+  Drupal.behaviors.ViewsAjaxView = {};
+  Drupal.behaviors.ViewsAjaxView.attach = function () {
+    if (drupalSettings && drupalSettings.views && drupalSettings.views.ajaxViews) {
+      var ajaxViews = drupalSettings.views.ajaxViews;
+      for (var i in ajaxViews) {
+        if (ajaxViews.hasOwnProperty(i)) {
+          Drupal.views.instances[i] = new Drupal.views.ajaxView(ajaxViews[i]);
+        }
+      }
+    }
+  };
+
+  /**
+   * @namespace
+   */
+  Drupal.views = {};
+
+  /**
+   * @type {object.<string, Drupal.views.ajaxView>}
+   */
+  Drupal.views.instances = {};
+
+  /**
+   * Javascript object for a certain view.
+   *
+   * @constructor
+   *
+   * @param {object} settings
+   *   Settings object for the ajax view.
+   * @param {string} settings.view_dom_id
+   *   The DOM id of the view.
+   */
+  Drupal.views.ajaxView = function (settings) {
+    var selector = '.js-view-dom-id-' + settings.view_dom_id;
+    this.$view = $(selector);
+
+    // Retrieve the path to use for views' ajax.
+    var ajax_path = drupalSettings.views.ajax_path;
+
+    // If there are multiple views this might've ended up showing up multiple
+    // times.
+    if (ajax_path.constructor.toString().indexOf('Array') !== -1) {
+      ajax_path = ajax_path[0];
+    }
+
+    // Check if there are any GET parameters to send to views.
+    var queryString = window.location.search || '';
+    if (queryString !== '') {
+      // Remove the question mark and Drupal path component if any.
+      queryString = queryString.slice(1).replace(/q=[^&]+&?|&?render=[^&]+/, '');
+      if (queryString !== '') {
+        // If there is a '?' in ajax_path, clean url are on and & should be
+        // used to add parameters.
+        queryString = ((/\?/.test(ajax_path)) ? '&' : '?') + queryString;
+      }
+    }
+
+    this.element_settings = {
+      url: ajax_path + queryString,
+      submit: settings,
+      setClick: true,
+      event: 'click',
+      selector: selector,
+      progress: {type: 'fullscreen'}
+    };
+
+    this.settings = settings;
+
+    // Add the ajax to exposed forms.
+    this.$exposed_form = $('form#views-exposed-form-' + settings.view_name.replace(/_/g, '-') + '-' + settings.view_display_id.replace(/_/g, '-'));
+    this.$exposed_form.once('exposed-form').each($.proxy(this.attachExposedFormAjax, this));
+
+    // Add the ajax to pagers.
+    this.$view
+      // Don't attach to nested views. Doing so would attach multiple behaviors
+      // to a given element.
+      .filter($.proxy(this.filterNestedViews, this))
+      .once('ajax-pager').each($.proxy(this.attachPagerAjax, this));
+
+    // Add a trigger to update this view specifically. In order to trigger a
+    // refresh use the following code.
+    //
+    // @code
+    // $('.view-name').trigger('RefreshView');
+    // @endcode
+    var self_settings = $.extend({}, this.element_settings, {
+      event: 'RefreshView',
+      base: this.selector,
+      element: this.$view.get(0)
+    });
+    this.refreshViewAjax = Drupal.ajax(self_settings);
+  };
+
+  /**
+   * @method
+   */
+  Drupal.views.ajaxView.prototype.attachExposedFormAjax = function () {
+    var that = this;
+    this.exposedFormAjax = [];
+    // Exclude the reset buttons so no AJAX behaviours are bound. Many things
+    // break during the form reset phase if using AJAX.
+    $('input[type=submit], input[type=image]', this.$exposed_form).not('[data-drupal-selector=edit-reset]').each(function (index) {
+      var self_settings = $.extend({}, that.element_settings, {
+        base: $(this).attr('id'),
+        element: this
+      });
+      that.exposedFormAjax[index] = Drupal.ajax(self_settings);
+    });
+  };
+
+  /**
+   * @return {bool}
+   *   If there is at least one parent with a view class return false.
+   *
+   * @todo remove .size() replace with .length.
+   */
+  Drupal.views.ajaxView.prototype.filterNestedViews = function () {
+    // If there is at least one parent with a view class, this view
+    // is nested (e.g., an attachment). Bail.
+    return !this.$view.parents('.view').size();
+  };
+
+  /**
+   * Attach the ajax behavior to each link.
+   */
+  Drupal.views.ajaxView.prototype.attachPagerAjax = function () {
+    this.$view.find('ul.js-pager__items > li > a, th.views-field a, .attachment .views-summary a')
+      .each($.proxy(this.attachPagerLinkAjax, this));
+  };
+
+  /**
+   * Attach the ajax behavior to a singe link.
+   *
+   * @param {string} [id]
+   *   The ID of the link.
+   * @param {HTMLElement} link
+   *   The link element.
+   */
+  Drupal.views.ajaxView.prototype.attachPagerLinkAjax = function (id, link) {
+    var $link = $(link);
+    var viewData = {};
+    var href = $link.attr('href');
+    // Construct an object using the settings defaults and then overriding
+    // with data specific to the link.
+    $.extend(
+      viewData,
+      this.settings,
+      Drupal.Views.parseQueryString(href),
+      // Extract argument data from the URL.
+      Drupal.Views.parseViewArgs(href, this.settings.view_base_path)
+    );
+
+    var self_settings = $.extend({}, this.element_settings, {
+      submit: viewData,
+      base: false,
+      element: link
+    });
+    this.pagerAjax = Drupal.ajax(self_settings);
+  };
+
+  /**
+   * Views scroll to top ajax command.
+   *
+   * @param {Drupal.Ajax} [ajax]
+   *   A {@link Drupal.ajax} object.
+   * @param {object} response
+   *   Ajax response.
+   * @param {string} response.selector
+   *   Selector to use.
+   */
+  Drupal.AjaxCommands.prototype.viewsScrollTop = function (ajax, response) {
+    // Scroll to the top of the view. This will allow users
+    // to browse newly loaded content after e.g. clicking a pager
+    // link.
+    var offset = $(response.selector).offset();
+    // We can't guarantee that the scrollable object should be
+    // the body, as the view could be embedded in something
+    // more complex such as a modal popup. Recurse up the DOM
+    // and scroll the first element that has a non-zero top.
+    var scrollTarget = response.selector;
+    while ($(scrollTarget).scrollTop() === 0 && $(scrollTarget).parent()) {
+      scrollTarget = $(scrollTarget).parent();
+    }
+    // Only scroll upward.
+    if (offset.top - 10 < $(scrollTarget).scrollTop()) {
+      $(scrollTarget).animate({scrollTop: (offset.top - 10)}, 500);
+    }
+  };
+
+})(jQuery, Drupal, drupalSettings);

web/core/modules/views/js/base.js

@@ -0,0 +1,110 @@
+/**
+ * @file
+ * Some basic behaviors and utility functions for Views.
+ */
+
+(function ($, Drupal, drupalSettings) {
+
+  'use strict';
+
+  /**
+   * @namespace
+   */
+  Drupal.Views = {};
+
+  /**
+   * Helper function to parse a querystring.
+   *
+   * @param {string} query
+   *   The querystring to parse.
+   *
+   * @return {object}
+   *   A map of query parameters.
+   */
+  Drupal.Views.parseQueryString = function (query) {
+    var args = {};
+    var pos = query.indexOf('?');
+    if (pos !== -1) {
+      query = query.substring(pos + 1);
+    }
+    var pair;
+    var pairs = query.split('&');
+    for (var i = 0; i < pairs.length; i++) {
+      pair = pairs[i].split('=');
+      // Ignore the 'q' path argument, if present.
+      if (pair[0] !== 'q' && pair[1]) {
+        args[decodeURIComponent(pair[0].replace(/\+/g, ' '))] = decodeURIComponent(pair[1].replace(/\+/g, ' '));
+      }
+    }
+    return args;
+  };
+
+  /**
+   * Helper function to return a view's arguments based on a path.
+   *
+   * @param {string} href
+   *   The href to check.
+   * @param {string} viewPath
+   *   The views path to check.
+   *
+   * @return {object}
+   *   An object containing `view_args` and `view_path`.
+   */
+  Drupal.Views.parseViewArgs = function (href, viewPath) {
+    var returnObj = {};
+    var path = Drupal.Views.getPath(href);
+    // Get viewPath url without baseUrl portion.
+    var viewHref = Drupal.url(viewPath).substring(drupalSettings.path.baseUrl.length);
+    // Ensure we have a correct path.
+    if (viewHref && path.substring(0, viewHref.length + 1) === viewHref + '/') {
+      returnObj.view_args = decodeURIComponent(path.substring(viewHref.length + 1, path.length));
+      returnObj.view_path = path;
+    }
+    return returnObj;
+  };
+
+  /**
+   * Strip off the protocol plus domain from an href.
+   *
+   * @param {string} href
+   *   The href to strip.
+   *
+   * @return {string}
+   *   The href without the protocol and domain.
+   */
+  Drupal.Views.pathPortion = function (href) {
+    // Remove e.g. http://example.com if present.
+    var protocol = window.location.protocol;
+    if (href.substring(0, protocol.length) === protocol) {
+      // 2 is the length of the '//' that normally follows the protocol.
+      href = href.substring(href.indexOf('/', protocol.length + 2));
+    }
+    return href;
+  };
+
+  /**
+   * Return the Drupal path portion of an href.
+   *
+   * @param {string} href
+   *   The href to check.
+   *
+   * @return {string}
+   *   An internal path.
+   */
+  Drupal.Views.getPath = function (href) {
+    href = Drupal.Views.pathPortion(href);
+    href = href.substring(drupalSettings.path.baseUrl.length, href.length);
+    // 3 is the length of the '?q=' added to the url without clean urls.
+    if (href.substring(0, 3) === '?q=') {
+      href = href.substring(3, href.length);
+    }
+    var chars = ['#', '?', '&'];
+    for (var i = 0; i < chars.length; i++) {
+      if (href.indexOf(chars[i]) > -1) {
+        href = href.substr(0, href.indexOf(chars[i]));
+      }
+    }
+    return href;
+  };
+
+})(jQuery, Drupal, drupalSettings);