https://rw.org.za/js/pages/search/SearchFormHandler.js

1/**
2 * @defgroup js_pages_search
3 */
4/**
5 * @file js/pages/search/SearchFormHandler.js
6 *
7 * Copyright (c) 2013-2019 Simon Fraser University
8 * Copyright (c) 2000-2019 John Willinsky
9 * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
10 *
11 * @class SearchFormHandler
12 *
13 * @brief Form handler that handles the search form. It checks whether
14 *  at least one search query term has been entered before submitting
15 *  the form. It also handles instant search (if enabled).
16 */
17(function($) {
18
19	/** @type {Object} */
20	$.pkp.pages = $.pkp.pages || {};
21
22
23	/** @type {Object} */
24	$.pkp.pages.search = $.pkp.pages.search || {};
25
26
27
28	/**
29	 * @constructor
30	 *
31	 * @extends $.pkp.controllers.form.FormHandler
32	 *
33	 * @param {jQueryObject} $form The wrapped HTML form element.
34	 * @param {Object} options Configuration of the form handler.
35	 */
36	$.pkp.pages.search.SearchFormHandler = function($form, options) {
37		// Focus the main query field and select all text.
38		$form.find('input[name="query"]').focus().select();
39
40		// Configure the form handler.
41		options.submitHandler = this.submitForm;
42		options.trackFormChanges = false;
43		options.transformButtons = false;
44		this.parent($form, options);
45	};
46	$.pkp.classes.Helper.inherits(
47			$.pkp.pages.search.SearchFormHandler,
48			$.pkp.controllers.form.FormHandler);
49
50
51	//
52	// Public methods
53	//
54	/**
55	 * Internal callback called after form validation to handle form
56	 * submission.
57	 *
58	 * @param {Object} validator The validator plug-in.
59	 * @param {HTMLElement} formElement The wrapped HTML form.
60	 */
61	/*jslint unparam: true*/
62	$.pkp.pages.search.SearchFormHandler.prototype.submitForm =
63			function(validator, formElement) {
64		var $form, allBlank, formFields, i, max;
65
66		$form = this.getHtmlElement();
67
68		formFields = [
69			'query', 'authors', 'title', 'abstract', 'discipline', 'subject',
70			'type', 'coverage', 'indexTerms', 'suppFiles', 'galleyFullText'];
71		for (i = 0, max = formFields.length; i < max; i++) {
72			allBlank = $form.find('input[name="' + formFields[i] + '"]').val() == '';
73			if (!allBlank) {
74				break;
75			}
76		}
77
78		if (allBlank) {
79			alert($.pkp.locale.search_noKeywordError);
80			return;
81		}
82
83		this.submitFormWithoutValidation(validator);
84	};
85	/*jslint unparam: false*/
86
87/** @param {jQuery} $ jQuery closure. */
88}(jQuery));