class-toolbar.php — Post Views Counter 1.7.15

post-views-counter / includes / class-toolbar.php

post-views-counter / includes Last commit date

class-toolbar.php

232 lines

1	<?php
2	// exit if accessed directly
3	if ( ! defined( 'ABSPATH' ) )
4	exit;
5
6	/**
7	* Post_Views_Counter_Toolbar class.
8	*
9	* @class Post_Views_Counter_Toolbar
10	*/
11	class Post_Views_Counter_Toolbar {
12
13	/**
14	* Class constructor.
15	*
16	* @return void
17	*/
18	public function __construct() {
19	// actions
20	add_action( 'wp_loaded', [ $this, 'maybe_load_admin_bar_menu' ] );
21	}
22
23	/**
24	* Add admin bar stats to a post.
25	*
26	* @return void
27	*/
28	public function maybe_load_admin_bar_menu() {
29	// get main instance
30	$pvc = Post_Views_Counter();
31
32	// statistics disabled?
33	if ( ! apply_filters( 'pvc_display_toolbar_statistics', $pvc->options['display']['toolbar_statistics'] ) )
34	return;
35
36	// skip for not logged in users
37	if ( ! is_user_logged_in() )
38	return;
39
40	// skip users with turned off admin bar at frontend
41	if ( ! is_admin() && get_user_option( 'show_admin_bar_front' ) !== 'true' )
42	return;
43
44	if ( is_admin() )
45	add_action( 'admin_init', [ $this, 'admin_bar_maybe_add_style' ] );
46	else
47	add_action( 'wp', [ $this, 'admin_bar_maybe_add_style' ] );
48	}
49
50	/**
51	* Add admin bar stats to a post.
52	*
53	* @global string $pagenow
54	* @global string $post
55	*
56	* @param object $admin_bar
57	* @return void
58	*/
59	public function admin_bar_menu( $admin_bar ) {
60	// get main instance
61	$pvc = Post_Views_Counter();
62
63	// set empty post
64	$post = null;
65
66	// admin?
67	if ( is_admin() && ! wp_doing_ajax() ) {
68	global $pagenow;
69
70	$post = ( $pagenow === 'post.php' && ! empty( $_GET['post'] ) ) ? get_post( (int) $_GET['post'] ) : $post;
71	// frontend?
72	} elseif ( is_singular() )
73	global $post;
74
75	// get countable post types
76	$post_types = (array) $pvc->options['general']['post_types_count'];
77
78	// break if display is not allowed
79	if ( empty( $post_types ) \|\| empty( $post ) \|\| ! in_array( $post->post_type, $post_types, true ) )
80	return;
81
82	if ( apply_filters( 'pvc_admin_display_post_views', true ) === false )
83	return;
84
85	$dt = new DateTime();
86
87	// get post views
88	$views = pvc_get_views(
89	[
90	'post_id' => $post->ID,
91	'post_type' => $post->post_type,
92	'fields' => 'date=>views',
93	'views_query' => [
94	'year' => $dt->format( 'Y' ),
95	'month' => $dt->format( 'm' )
96	]
97	]
98	);
99
100	$graph = '';
101
102	// get highest value
103	$views_copy = $views;
104
105	arsort( $views_copy, SORT_NUMERIC );
106
107	$highest = reset( $views_copy );
108
109	// find the multiplier
110	$multiplier = $highest * 0.05;
111
112	// generate ranges
113	$ranges = [];
114
115	for ( $i = 1; $i <= 20; $i ++ ) {
116	$ranges[$i] = round( $multiplier * $i );
117	}
118
119	// create graph
120	foreach ( $views as $date => $count ) {
121	$count_class = 0;
122
123	if ( $count > 0 ) {
124	foreach ( $ranges as $index => $range ) {
125	if ( $count <= $range ) {
126	$count_class = $index;
127	break;
128	}
129	}
130	}
131
132	// individual bars are decorative: the container carries the accessible name,
133	// while the title attribute keeps the tooltip for sighted mouse users
134	$graph .= '<span class="pvc-line-graph pvc-line-graph-' . (int) $count_class . '" aria-hidden="true" title="' . esc_attr( sprintf( _n( '%s post view', '%s post views', $count, 'post-views-counter' ), number_format_i18n( $count ) ) ) . '"></span>';
135	}
136
137	// one concise accessible name instead of one label per day
138	$graph_label = sprintf(
139	/* translators: 1: month and year, 2: total number of post views */
140	__( 'Post views chart for %1$s, %2$s total', 'post-views-counter' ),
141	date_i18n( 'F Y', $dt->getTimestamp() ),
142	number_format_i18n( array_sum( $views ) )
143	);
144
145	$admin_bar->add_menu(
146	[
147	'id' => 'pvc-post-views',
148	'title' => '<span class="pvc-graph-container" role="img" aria-label="' . esc_attr( $graph_label ) . '">' . $graph . '</span>',
149	'href' => false,
150	'meta' => [
151	'title' => false
152	]
153	]
154	);
155	}
156
157	/**
158	* Maybe add admin CSS.
159	*
160	* @global string $pagenow
161	* @global string $post
162	*
163	* @return void
164	*/
165	public function admin_bar_maybe_add_style() {
166	// get main instance
167	$pvc = Post_Views_Counter();
168
169	// set empty post
170	$post = null;
171
172	// admin?
173	if ( is_admin() && ! wp_doing_ajax() ) {
174	global $pagenow;
175
176	$post = ( $pagenow === 'post.php' && ! empty( $_GET['post'] ) ) ? get_post( (int) $_GET['post'] ) : $post;
177	// frontend?
178	} elseif ( is_singular() )
179	global $post;
180
181	// get countable post types
182	$post_types = (array) $pvc->options['general']['post_types_count'];
183
184	// break if display is not allowed
185	if ( empty( $post_types ) \|\| empty( $post ) \|\| ! in_array( $post->post_type, $post_types, true ) )
186	return;
187
188	if ( apply_filters( 'pvc_admin_display_post_views', true ) === false )
189	return;
190
191	// add admin bar
192	add_action( 'admin_bar_menu', [ $this, 'admin_bar_menu' ], 100 );
193
194	// backend
195	if ( current_action() === 'admin_init' )
196	add_action( 'admin_head', [ $this, 'admin_bar_css' ] );
197	// frontend
198	elseif ( current_action() === 'wp' )
199	add_action( 'wp_head', [ $this, 'admin_bar_css' ] );
200	}
201
202	/**
203	* Add admin CSS.
204	*
205	* @return void
206	*/
207	public function admin_bar_css() {
208	$html = '
209	<style type="text/css">
210	#wp-admin-bar-pvc-post-views .pvc-graph-container { padding-top: 6px; padding-bottom: 6px; position: relative; display: block; height: 100%; box-sizing: border-box; }
211	#wp-admin-bar-pvc-post-views .pvc-line-graph {
212	display: inline-block;
213	width: 1px;
214	margin-right: 1px;
215	background-color: #ccc;
216	vertical-align: baseline;
217	}
218	#wp-admin-bar-pvc-post-views .pvc-line-graph:hover { background-color: #eee; }
219	#wp-admin-bar-pvc-post-views .pvc-line-graph-0 { height: 1% }';
220
221	for ( $i = 1; $i <= 20; $i ++ ) {
222	$html .= '
223	#wp-admin-bar-pvc-post-views .pvc-line-graph-' . $i . ' { height: ' . $i * 5 . '% }';
224	}
225
226	$html .= '
227	</style>';
228
229	echo wp_kses( $html, [ 'style' => [] ] );
230	}
231	}
232