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/**
* @file
* Handles AJAX fetching of views, including filter submission and response.
*/
(function ($) {
/**
* Attaches the AJAX behavior to Views exposed filter forms and key View links.
*/
Drupal.behaviors.ViewsAjaxView = {};
Drupal.behaviors.ViewsAjaxView.attach = function() {
if (Drupal.settings && Drupal.settings.views && Drupal.settings.views.ajaxViews) {
$.each(Drupal.settings.views.ajaxViews, function(i, settings) {
Drupal.views.instances[i] = new Drupal.views.ajaxView(settings);
});
}
};
Drupal.views = {};
Drupal.views.instances = {};
/**
* Javascript object for a certain view.
*/
Drupal.views.ajaxView = function(settings) {
var selector = '.view-dom-id-' + settings.view_dom_id;
this.$view = $(selector);
// Retrieve the path to use for views' ajax.
var ajax_path = Drupal.settings.views.ajax_path;
// If there are multiple views this might've ended up showing up multiple times.
if (ajax_path.constructor.toString().indexOf("Array") != -1) {
ajax_path = ajax_path[0];
}
// Check if there are any GET parameters to send to views.
var queryString = window.location.search || '';
if (queryString !== '') {
// Remove the question mark and Drupal path component if any.
var queryString = queryString.slice(1).replace(/q=[^&]+&?|&?render=[^&]+/, '');
if (queryString !== '') {
// If there is a '?' in ajax_path, clean url are on and & should be used to add parameters.
queryString = ((/\?/.test(ajax_path)) ? '&' : '?') + queryString;
}
}
this.element_settings = {
url: ajax_path + queryString,
submit: settings,
setClick: true,
event: 'click',
selector: selector,
progress: { type: 'throbber' }
};
this.settings = settings;
// Add the ajax to exposed forms.
this.$exposed_form = $('form#views-exposed-form-'+ settings.view_name.replace(/_/g, '-') + '-' + settings.view_display_id.replace(/_/g, '-'));
this.$exposed_form.once(jQuery.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(jQuery.proxy(this.filterNestedViews, this))
.once(jQuery.proxy(this.attachPagerAjax, this));
};
Drupal.views.ajaxView.prototype.attachExposedFormAjax = function() {
var button = $('input[type=submit], button[type=submit], input[type=image]', this.$exposed_form);
button = button[0];
this.exposedFormAjax = new Drupal.ajax($(button).attr('id'), button, this.element_settings);
};
Drupal.views.ajaxView.prototype.filterNestedViews= function() {
// If there is at least one parent with a view class, this view
// is nested (e.g., an attachment). Bail.
return !this.$view.parents('.view').size();
};
/**
* Attach the ajax behavior to each link.
*/
Drupal.views.ajaxView.prototype.attachPagerAjax = function() {
this.$view.find('ul.pager > li > a, th.views-field a, .attachment .views-summary a')
.each(jQuery.proxy(this.attachPagerLinkAjax, this));
};
/**
* Attach the ajax behavior to a singe link.
*/
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)
);
// For anchor tags, these will go to the target of the anchor rather
// than the usual location.
$.extend(viewData, Drupal.Views.parseViewArgs(href, this.settings.view_base_path));
this.element_settings.submit = viewData;
this.pagerAjax = new Drupal.ajax(false, $link, this.element_settings);
};
Drupal.ajax.prototype.commands.viewsScrollTop = function (ajax, response, status) {
// 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);
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