floating-button / classes / Publisher / Navigation.php

Navigation.php in Floating Button – Easily Create Sticky, Fixed & Floating Buttons trunk, at classes/Publisher/Navigation.php

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1	<?php
2
3	namespace FloatingButton\Publisher;
4
5	use Walker_Nav_Menu;
6
7	defined( 'ABSPATH' ) \|\| exit;
8
9	class Navigation extends Walker_Nav_Menu {
10
11	/**
12	* [private stored in start_el and used in start_lvl to get item ID ]
13	* @var [array]
14	*/
15	private $curItem;
16
17	public function start_el( &$output, $data_object, $depth = 0, $args = null, $current_object_id = 0 ) {
18	// Restores the more descriptive, specific name for use within this method.
19	$menu_item = $data_object;
20
21	if ( isset( $args->item_spacing ) && 'discard' === $args->item_spacing ) {
22	$t = '';
23	$n = '';
24	} else {
25	$t = "\t";
26	$n = "\n";
27	}
28	$indent = ( $depth ) ? str_repeat( $t, $depth ) : '';
29
30	$classes = empty( $menu_item->classes ) ? array() : (array) $menu_item->classes;
31	$classes[] = 'menu-item-' . $menu_item->ID;
32
33	/**
34	* Filters the arguments for a single nav menu item.
35	*
36	* @param stdClass $args An object of wp_nav_menu() arguments.
37	* @param WP_Post $menu_item Menu item data object.
38	* @param int $depth Depth of menu item. Used for padding.
39	*
40	* @since 4.4.0
41	*
42	*/
43	$args = apply_filters( 'nav_menu_item_args', $args, $menu_item, $depth );
44
45	/**
46	* Filters the CSS classes applied to a menu item's list item element.
47	*
48	* @param string[] $classes Array of the CSS classes that are applied to the menu item's `<li>` element.
49	* @param WP_Post $menu_item The current menu item object.
50	* @param stdClass $args An object of wp_nav_menu() arguments.
51	* @param int $depth Depth of menu item. Used for padding.
52	*
53	* @since 3.0.0
54	* @since 4.1.0 The `$depth` parameter was added.
55	*
56	*/
57	$class_names = implode( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $menu_item, $args, $depth ) );
58	$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
59
60	/**
61	* Filters the ID attribute applied to a menu item's list item element.
62	*
63	* @param string $menu_item_id The ID attribute applied to the menu item's `<li>` element.
64	* @param WP_Post $menu_item The current menu item.
65	* @param stdClass $args An object of wp_nav_menu() arguments.
66	* @param int $depth Depth of menu item. Used for padding.
67	*
68	* @since 3.0.1
69	* @since 4.1.0 The `$depth` parameter was added.
70	*
71	*/
72	$id = apply_filters( 'nav_menu_item_id', 'menu-item-' . $menu_item->ID, $menu_item, $args, $depth );
73	$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
74
75	$output .= $indent . '<li' . $id . $class_names . '>';
76
77	$atts = array();
78	$atts['title'] = ! empty( $menu_item->attr_title ) ? $menu_item->attr_title : '';
79	$atts['target'] = ! empty( $menu_item->target ) ? $menu_item->target : '';
80	if ( '_blank' === $menu_item->target && empty( $menu_item->xfn ) ) {
81	$atts['rel'] = 'noopener';
82	} else {
83	$atts['rel'] = $menu_item->xfn;
84	}
85	$atts['href'] = ! empty( $menu_item->url ) ? $menu_item->url : '';
86	$atts['aria-current'] = $menu_item->current ? 'page' : '';
87
88	/**
89	* Filters the HTML attributes applied to a menu item's anchor element.
90	*
91	* @param array $atts {
92	* The HTML attributes applied to the menu item's `<a>` element, empty strings are ignored.
93	*
94	* @type string $title Title attribute.
95	* @type string $target Target attribute.
96	* @type string $rel The rel attribute.
97	* @type string $href The href attribute.
98	* @type string $aria-current The aria-current attribute.
99	* }
100	*
101	* @param WP_Post $menu_item The current menu item object.
102	* @param stdClass $args An object of wp_nav_menu() arguments.
103	* @param int $depth Depth of menu item. Used for padding.
104	*
105	* @since 3.6.0
106	* @since 4.1.0 The `$depth` parameter was added.
107	*
108	*/
109	$atts = apply_filters( 'nav_menu_link_attributes', $atts, $menu_item, $args, $depth );
110
111	$attributes = '';
112	foreach ( $atts as $attr => $value ) {
113	if ( is_scalar( $value ) && '' !== $value && false !== $value ) {
114	$value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
115	$attributes .= ' ' . $attr . '="' . $value . '"';
116	}
117	}
118
119	/** This filter is documented in wp-includes/post-template.php */
120	$title = apply_filters( 'the_title', $menu_item->title, $menu_item->ID );
121
122
123	$item_output = $args->before;
124
125
126	if ( $args->walker->has_children ) {
127	$item_output .= '<details>';
128	$item_output .= '<summary>';
129	$item_output .= $menu_item->title;
130	$item_output .= '</summary>';
131	} else {
132	$item_output .= '<a' . $attributes . '>';
133	$item_output .= $menu_item->title;
134	$item_output .= '</a>';
135	}
136
137	$item_output .= $args->after;
138
139	/**
140	* Filters a menu item's starting output.
141	*
142	* The menu item's starting output only includes `$args->before`, the opening `<a>`,
143	* the menu item's title, the closing `</a>`, and `$args->after`. Currently, there is
144	* no filter for modifying the opening and closing `<li>` for a menu item.
145	*
146	* @param string $item_output The menu item's starting HTML output.
147	* @param WP_Post $menu_item Menu item data object.
148	* @param int $depth Depth of menu item. Used for padding.
149	* @param stdClass $args An object of wp_nav_menu() arguments.
150	*
151	* @since 3.0.0
152	*
153	*/
154	$output .= $item_output;
155	}
156
157	public function end_el( &$output, $data_object, $depth = 0, $args = null ) {
158	if ( isset( $args->item_spacing ) && 'discard' === $args->item_spacing ) {
159	$t = '';
160	$n = '';
161	} else {
162	$t = "\t";
163	$n = "\n";
164	}
165	if ( $args->walker->has_children ) {
166	$output .= '</details>';
167	}
168	$output .= "</li>{$n}";
169	}
170
171	}
172
173