https://ignca.gov.in/wp-content/themes/myignca/js/functions.js?ver=20150330

1/**
2 * Functionality specific to Twenty Thirteen.
3 *
4 * Provides helper functions to enhance the theme experience.
5 */
6
7( function( $ ) {
8	var body    = $( 'body' ),
9	    _window = $( window ),
10		nav, button, menu;
11
12	nav = $( '#site-navigation' );
13	button = nav.find( '.menu-toggle' );
14	menu = nav.find( '.nav-menu' );
15
16	/**
17	 * Adds a top margin to the footer if the sidebar widget area is higher
18	 * than the rest of the page, to help the footer always visually clear
19	 * the sidebar.
20	 */
21	$( function() {
22		if ( body.is( '.sidebar' ) ) {
23			var sidebar   = $( '#secondary .widget-area' ),
24			    secondary = ( 0 === sidebar.length ) ? -40 : sidebar.height(),
25			    margin    = $( '#tertiary .widget-area' ).height() - $( '#content' ).height() - secondary;
26
27			if ( margin > 0 && _window.innerWidth() > 999 ) {
28				$( '#colophon' ).css( 'margin-top', margin + 'px' );
29			}
30		}
31	} );
32
33	/**
34	 * Enables menu toggle for small screens.
35	 */
36	( function() {
37		if ( ! nav || ! button ) {
38			return;
39		}
40
41		// Hide button if menu is missing or empty.
42		if ( ! menu || ! menu.children().length ) {
43			button.hide();
44			return;
45		}
46
47		button.on( 'click.twentythirteen', function() {
48			nav.toggleClass( 'toggled-on' );
49			if ( nav.hasClass( 'toggled-on' ) ) {
50				$( this ).attr( 'aria-expanded', 'true' );
51				menu.attr( 'aria-expanded', 'true' );
52			} else {
53				$( this ).attr( 'aria-expanded', 'false' );
54				menu.attr( 'aria-expanded', 'false' );
55			}
56		} );
57
58		// Fix sub-menus for touch devices.
59		if ( 'ontouchstart' in window ) {
60			menu.find( '.menu-item-has-children > a, .page_item_has_children > a' ).on( 'touchstart.twentythirteen', function( e ) {
61				var el = $( this ).parent( 'li' );
62
63				if ( ! el.hasClass( 'focus' ) ) {
64					e.preventDefault();
65					el.toggleClass( 'focus' );
66					el.siblings( '.focus' ).removeClass( 'focus' );
67				}
68			} );
69		}
70
71		// Better focus for hidden submenu items for accessibility.
72		menu.find( 'a' ).on( 'focus.twentythirteen blur.twentythirteen', function() {
73			$( this ).parents( '.menu-item, .page_item' ).toggleClass( 'focus' );
74		} );
75	} )();
76
77	/**
78	 * @summary Add or remove ARIA attributes.
79	 * Uses jQuery's width() function to determine the size of the window and add
80	 * the default ARIA attributes for the menu toggle if it's visible.
81	 * @since Twenty Thirteen 1.5
82	 */
83	function onResizeARIA() {
84		if ( 643 > _window.width() ) {
85			button.attr( 'aria-expanded', 'false' );
86			menu.attr( 'aria-expanded', 'false' );
87			button.attr( 'aria-controls', 'primary-menu' );
88		} else {
89			button.removeAttr( 'aria-expanded' );
90			menu.removeAttr( 'aria-expanded' );
91			button.removeAttr( 'aria-controls' );
92		}
93	}
94
95	_window
96		.on( 'load.twentythirteen', onResizeARIA )
97		.on( 'resize.twentythirteen', function() {
98			onResizeARIA();
99	} );
100
101	/**
102	 * Makes "skip to content" link work correctly in IE9 and Chrome for better
103	 * accessibility.
104	 *
105	 * @link http://www.nczonline.net/blog/2013/01/15/fixing-skip-to-content-links/
106	 */
107	_window.on( 'hashchange.twentythirteen', function() {
108		var element = document.getElementById( location.hash.substring( 1 ) );
109
110		if ( element ) {
111			if ( ! /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) ) {
112				element.tabIndex = -1;
113			}
114
115			element.focus();
116		}
117	} );
118
119	/**
120	 * Arranges footer widgets vertically.
121	 */
122	if ( $.isFunction( $.fn.masonry ) ) {
123		var columnWidth = body.is( '.sidebar' ) ? 228 : 245;
124
125		$( '#secondary .widget-area' ).masonry( {
126			itemSelector: '.widget',
127			columnWidth: columnWidth,
128			gutterWidth: 20,
129			isRTL: body.is( '.rtl' )
130		} );
131	}
132} )( jQuery );