powerpress / powerpressadmin-notifications.php

powerpressadmin-notifications.php in PowerPress Podcasting plugin by Blubrry trunk, at powerpressadmin-notifications.php

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1	<?php
2	// powerpressadmin-notifications.php
3
4	// Notice message manager for PowerPress
5
6	// Inspired by the notifications in Yoast's SEO
7	// Also inspired from https://premium.wpmudev.org/blog/adding-admin-notices/
8	// For the sake of keeping things simple, we will only include this class when we need to display notifications
9
10	class PowerPress_Notification {
11
12	private $settings = array();
13
14	public function __construct($content, $settings = array() )
15	{
16	$defaults = array();
17	$defaults['content'] = '';
18	$defaults['type'] = 'updated';
19	$defaults['id'] = '';
20	$this->settings = wp_parse_args( $settings, $defaults );
21	if( !empty($content) )
22	$this->settings['content'] = $content;
23	if( empty($this->settings['content']) )
24	$this->settings['id'] = crc32($this->settings['content']); // Not ideal, but with no ID we need some unique value
25	}
26
27	public function get_notification_as_string()
28	{
29	$html = '<div class="powerpress-notice notice is-dismissible ' . esc_attr( $this->settings['type'] ) . '" id="powerpress-notice-'. esc_attr( $this->settings['id'] ) .'">';
30	$html .= wpautop( $this->settings['content'] );
31
32	if( version_compare($GLOBALS['wp_version'], '4.2', '<' ) ) {
33	$html .= '<p>  <a style="float:right;" href="#" class="notice-dismiss-link">'. __('Dismiss', 'powerpress') .'</a></p>';
34	}
35	$html .= '</div>' . PHP_EOL;
36	return $html;
37	}
38
39	};
40
41	class PowerPress_Notification_Manager {
42
43	private $notifications = array();
44	private $dismissedNotifications = array();
45
46	public function __construct()
47	{
48	$this->dismissedNotifications = get_option('powerpress_dismissed_notices');
49	add_action( 'all_admin_notices', array( $this, 'all_admin_notices' ) );
50	add_action('wp_ajax_powerpress_notice_dismiss', array($this, 'wp_ajax_powerpress_notice_dismiss') );
51	add_action('admin_head', array($this, 'admin_head') );
52	}
53
54	// this will print the notification as a normal string, rather than a bar at the top of the page
55	public function print_one_notice($id, $ignore_dismiss = false) {
56	echo "<div class='pp-sidebar-notification'>";
57	if (!empty($this->notifications[$id])) {
58	echo str_replace(array('powerpress-notice ', 'notice ', 'updated'), array('', '', ''), $this->notifications[$id]->get_notification_as_string());
59	} else if ($ignore_dismiss) {
60	echo str_replace(array('powerpress-notice ', 'notice ', 'updated'), array('', '', ''), $this->dismissedNotifications[$id]);
61	}
62	echo "</div>";
63	}
64
65	public function all_admin_notices()
66	{
67	foreach( $this->notifications as $key => $notification )
68	{
69	echo $notification->get_notification_as_string();
70	}
71	}
72
73	public function wp_ajax_powerpress_notice_dismiss()
74	{
75	// Check for nonce security
76	if (!isset($_POST['nonce'])) {
77	exit;
78	}
79	if ( ! wp_verify_nonce( $_POST['nonce'], 'powerpress-notice-dismiss' ) ) {
80	exit;
81	}
82	$dismiss_notice_id = $_POST['dismiss_notice_id'];
83	preg_match('/^powerpress-notice-(.*)$/i', $dismiss_notice_id, $match );
84	if( empty($match[1]) )
85	die('-1');
86
87	$DismissedNotifications = get_option('powerpress_dismissed_notices');
88	if( !is_array($DismissedNotifications) )
89	$DismissedNotifications = array();
90	$DismissedNotifications[ $match[1] ] = $this->notifications[$match[1]]->get_notification_as_string();
91	update_option('powerpress_dismissed_notices', $DismissedNotifications);
92	die('1');
93	}
94
95	function admin_head()
96	{
97	if( count($this->notifications) > 0 ) // If there are notices to print, then lets also put in the ajax to clear them
98	{
99	if( version_compare($GLOBALS['wp_version'], '4.2', '>=' ) ) {
100	?>
101	<script type="text/javascript"><!--
102
103	jQuery(document).ready( function() {
104
105	jQuery(document).on( 'click', '.powerpress-notice .notice-dismiss', function() {
106
107	var dismissId = jQuery(this).closest('.powerpress-notice').attr('id');
108	jQuery.post('<?php echo admin_url('admin-ajax.php'); ?>', {action:"powerpress_notice_dismiss", dismiss_notice_id: dismissId, nonce: '<?php echo wp_create_nonce('powerpress-notice-dismiss'); ?>' });
109	});
110	});
111
112	--></script>
113	<?php
114	}
115	else
116	{
117	?>
118	<script type="text/javascript"><!--
119
120	jQuery(document).ready( function() {
121
122	jQuery(document).on( 'click', '.powerpress-notice .notice-dismiss-link', function(e) {
123	e.preventDefault();
124	var dismissId = jQuery(this).closest('.powerpress-notice').attr('id');
125	jQuery.post('<?php echo admin_url('admin-ajax.php'); ?>', {action:"powerpress_notice_dismiss", dismiss_notice_id: dismissId, nonce: '<?php echo wp_create_nonce('powerpress-notice-dismiss'); ?>' });
126	jQuery(this).closest('.powerpress-notice').hide(); // Hide the div now we dismissed it
127	});
128	});
129
130	--></script>
131	<?php
132	}
133	?>
134	<style>
135	.powerpress-notice a {
136	text-decoration: underline;
137	}
138	</style>
139	<?php
140	}
141	}
142
143	public function dismissed_status($notification_id)
144	{
145	if( !empty($this->dismissedNotifications[ $notification_id ]) )
146	return true;
147	return false;
148	}
149
150	public function add($notification_id, $notification_content)
151	{
152	if( !$this->dismissed_status($notification_id) ) {
153	$this->notifications[$notification_id] = new PowerPress_Notification($notification_content, array('id'=>$notification_id) );
154	}
155	}
156
157	};
158
159	function powerpressadmin_notifications_appropriate()
160	{
161	// Any powerpress page
162	if( preg_match('/wp-admin\/.*powerpress/', $_SERVER['REQUEST_URI']) )
163	return true;
164
165	// Dashboard is acceptable:
166	if( preg_match('/wp-admin\/(index\.php)?$/', $_SERVER['REQUEST_URI']) )
167	return true;
168
169	// edit posts (pages, post types, etc...)
170	if( preg_match('/wp-admin\/edit\.php/', $_SERVER['REQUEST_URI']) )
171	return true;
172
173	// managing plugins
174	if( preg_match('/wp-admin\/plugins\.php/', $_SERVER['REQUEST_URI']) )
175	return true;
176
177	// managing themes
178	if( preg_match('/wp-admin\/themes\.php/', $_SERVER['REQUEST_URI']) )
179	return true;
180
181	// Required so we can dismiss notices
182	if( preg_match('/wp-admin\/admin-ajax\.php/', $_SERVER['REQUEST_URI']) )
183	return true;
184
185	return false;
186	}
187
188
189
190	// eof