https://www.aai.aero/sites/all/modules/contrib/views/js/ajax_view.js?tlt3ob

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.$view
72      .once(jQuery.proxy(this.attachPagerAjax, this));
73
74    // Add a trigger to update this view specifically. In order to trigger a
75    // refresh use the following code.
76    //
77    // @code
78    // jQuery('.view-name').trigger('RefreshView');
79    // @endcode
80    // Add a trigger to update this view specifically.
81    var self_settings = this.element_settings;
82    self_settings.event = 'RefreshView';
83    var self = this;
84    this.$view.once('refresh', function () {
85      self.refreshViewAjax = new Drupal.ajax(self.selector, self.$view, self_settings);
86    });
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  /**
104   * Attach the ajax behavior to each link.
105   */
106  Drupal.views.ajaxView.prototype.attachPagerAjax = function() {
107    this.$view.find('ul.pager > li > a, ol.pager > li > a, th.views-field a, .attachment .views-summary a')
108      .each(jQuery.proxy(this.attachPagerLinkAjax, this));
109  };
110
111  /**
112   * Attach the ajax behavior to a single link.
113   */
114  Drupal.views.ajaxView.prototype.attachPagerLinkAjax = function(id, link) {
115    var $link = $(link);
116    var viewData = {};
117    var href = $link.attr('href');
118    // Don't attach to pagers inside nested views.
119    if ($link.closest('.view')[0] !== this.$view[0] &&
120      $link.closest('.view').parent().hasClass('attachment') === false) {
121      return;
122    }
123
124    // Provide a default page if none has been set. This must be done
125    // prior to merging with settings to avoid accidentally using the
126    // page landed on instead of page 1.
127    if (typeof(viewData.page) === 'undefined') {
128      viewData.page = 0;
129    }
130
131    // Construct an object using the settings defaults and then overriding
132    // with data specific to the link.
133    $.extend(
134      viewData,
135      this.settings,
136      Drupal.Views.parseQueryString(href),
137      // Extract argument data from the URL.
138      Drupal.Views.parseViewArgs(href, this.settings.view_base_path)
139    );
140

141    // For anchor tags, these will go to the target of the anchor rather
142    // than the usual location.
143    $.extend(viewData, Drupal.Views.parseViewArgs(href, this.settings.view_base_path));
144
145    this.element_settings.submit = viewData;
146    this.pagerAjax = new Drupal.ajax(false, $link, this.element_settings);
147    this.links.push(this.pagerAjax);
148  };
149
150  Drupal.ajax.prototype.commands.viewsScrollTop = function (ajax, response, status) {
151    // Scroll to the top of the view. This will allow users
152    // to browse newly loaded content after e.g. clicking a pager
153    // link.
154    var offset = $(response.selector).offset();
155    // We can't guarantee that the scrollable object should be
156    // the body, as the view could be embedded in something
157    // more complex such as a modal popup. Recurse up the DOM
158    // and scroll the first element that has a non-zero top.
159    var scrollTarget = response.selector;
160    while ($(scrollTarget).scrollTop() == 0 && $(scrollTarget).parent()) {
161      scrollTarget = $(scrollTarget).parent();
162    }
163    // Only scroll upward.
164    if (offset.top - 10 < $(scrollTarget).scrollTop()) {
165      $(scrollTarget).animate({scrollTop: (offset.top - 10)}, 500);
166    }
167  };
168
169})(jQuery);