https://www.vegansociety.com/sites/all/modules/views/js/ajax_view.js?tluzlp

1/**
2 * @file
3 * Handles AJAX fetching of views, including filter submission and response.
4 */
5(function ($) {
6
7  /**
8   * Attaches the AJAX behavior to exposed filter forms and key views links.
9   */
10  Drupal.behaviors.ViewsAjaxView = {};
11  Drupal.behaviors.ViewsAjaxView.attach = function() {
12    if (Drupal.settings && Drupal.settings.views && Drupal.settings.views.ajaxViews) {
13      $.each(Drupal.settings.views.ajaxViews, function(i, settings) {
14        Drupal.views.instances[i] = new Drupal.views.ajaxView(settings);
15      });
16    }
17  };
18
19  Drupal.views = {};
20  Drupal.views.instances = {};
21
22  /**
23   * Javascript object for a certain view.
24   */
25  Drupal.views.ajaxView = function(settings) {
26    var selector = '.view-dom-id-' + settings.view_dom_id;
27    this.$view = $(selector);
28
29    // Retrieve the path to use for views' ajax.
30    var ajax_path = Drupal.settings.views.ajax_path;
31
32    // If there are multiple views this might've ended up showing up multiple
33    // times.
34    if (ajax_path.constructor.toString().indexOf("Array") != -1) {
35      ajax_path = ajax_path[0];
36    }
37
38    // Check if there are any GET parameters to send to views.
39    var queryString = window.location.search || '';
40    if (queryString !== '') {
41      // Remove the question mark and Drupal path component if any.
42      var queryString = queryString.slice(1).replace(/q=[^&]+&?|&?render=[^&]+/, '');
43      if (queryString !== '') {
44        // If there is a '?' in ajax_path, clean url are on and & should be
45        // used to add parameters.
46        queryString = ((/\?/.test(ajax_path)) ? '&' : '?') + queryString;
47      }
48    }
49
50    this.element_settings = {
51      url: ajax_path + queryString,
52      submit: settings,
53      setClick: true,
54      event: 'click',
55      selector: selector,
56      progress: {
57        type: 'throbber'
58      }
59    };
60
61    this.settings = settings;
62
63    // Add the ajax to exposed forms.
64    this.$exposed_form = $('#views-exposed-form-' + settings.view_name.replace(/_/g, '-') + '-' + settings.view_display_id.replace(/_/g, '-'));
65    this.$exposed_form.once(jQuery.proxy(this.attachExposedFormAjax, this));
66
67    // Store Drupal.ajax objects here for all pager links.
68    this.links = [];
69
70    // Add the ajax to pagers.
71    this.$view
72    // Don't attach to nested views. Doing so would attach multiple behaviors
73    // to a given element.
74      .filter(jQuery.proxy(this.filterNestedViews, this))
75      .once(jQuery.proxy(this.attachPagerAjax, this));
76
77    // Add a trigger to update this view specifically. In order to trigger a
78    // refresh use the following code.
79    //
80    // @code
81    // jQuery('.view-name').trigger('RefreshView');
82    // @endcode
83    // Add a trigger to update this view specifically.
84    var self_settings = this.element_settings;
85    self_settings.event = 'RefreshView';
86    this.refreshViewAjax = new Drupal.ajax(this.selector, this.$view, self_settings);
87  };
88
89  Drupal.views.ajaxView.prototype.attachExposedFormAjax = function() {
90    var button = $('input[type=submit], button[type=submit], input[type=image]', this.$exposed_form);
91    button = button[0];
92
93    // Call the autocomplete submit before doing AJAX.
94    $(button).click(function () {
95      if (Drupal.autocompleteSubmit) {
96        Drupal.autocompleteSubmit();
97      }
98    });
99
100    this.exposedFormAjax = new Drupal.ajax($(button).attr('id'), button, this.element_settings);
101  };
102
103  Drupal.views.ajaxView.prototype.filterNestedViews = function() {
104    // If there is at least one parent with a view class, this view
105    // is nested (e.g., an attachment). Bail.
106    return !this.$view.parents('.view').length;
107  };
108
109  /**
110   * Attach the ajax behavior to each link.
111   */
112  Drupal.views.ajaxView.prototype.attachPagerAjax = function() {
113    this.$view.find('ul.pager > li > a, th.views-field a, .attachment .views-summary a')
114      .each(jQuery.proxy(this.attachPagerLinkAjax, this));
115  };
116
117  /**
118   * Attach the ajax behavior to a singe link.
119   */
120  Drupal.views.ajaxView.prototype.attachPagerLinkAjax = function(id, link) {
121    var $link = $(link);
122    var viewData = {};
123    var href = $link.attr('href');
124    // Construct an object using the settings defaults and then overriding
125    // with data specific to the link.
126    $.extend(
127    viewData,
128    this.settings,
129    Drupal.Views.parseQueryString(href),
130    // Extract argument data from the URL.
131    Drupal.Views.parseViewArgs(href, this.settings.view_base_path)
132    );
133

134    // For anchor tags, these will go to the target of the anchor rather
135    // than the usual location.
136    $.extend(viewData, Drupal.Views.parseViewArgs(href, this.settings.view_base_path));
137
138    this.element_settings.submit = viewData;
139    this.pagerAjax = new Drupal.ajax(false, $link, this.element_settings);
140    this.links.push(this.pagerAjax);
141  };
142
143  Drupal.ajax.prototype.commands.viewsScrollTop = function (ajax, response, status) {
144    // Scroll to the top of the view. This will allow users
145    // to browse newly loaded content after e.g. clicking a pager
146    // link.
147    var offset = $(response.selector).offset();
148    // We can't guarantee that the scrollable object should be
149    // the body, as the view could be embedded in something
150    // more complex such as a modal popup. Recurse up the DOM
151    // and scroll the first element that has a non-zero top.
152    var scrollTarget = response.selector;
153    while ($(scrollTarget).scrollTop() == 0 && $(scrollTarget).parent()) {
154      scrollTarget = $(scrollTarget).parent();
155    }
156    // Only scroll upward.
157    if (offset.top - 10 < $(scrollTarget).scrollTop()) {
158      $(scrollTarget).animate({scrollTop: (offset.top - 10)}, 500);
159    }
160  };
161
162})(jQuery);