jetpack-module-control / jetpack-module-control.php

jetpack-module-control.php in Module Control for Jetpack 1.4.2, at jetpack-module-control.php

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1	<?php
2	/*
3	* Plugin Name: Module Control for Jetpack
4	* Plugin URI: http://status301.net/wordpress-plugins/jetpack-module-control/
5	* Description: This plugin brings additional control over Jetpack modules. You can blacklist / remove individual modules, prevent auto-activation or allow activation without a WordPress.com account.
6	* Author: RavanH
7	* Author URI: http://status301.net/
8	* Network: true
9	* Text Domain: jetpack-module-control
10	* Domain Path: /languages
11	* License: GPL2+
12	* Version: 1.4.2
13	*/
14
15	/*
16	* ROADMAP
17	*
18	* version 2.0
19	* Replace "Prevent the Jetpack plugin from auto-activating (new) modules" with
20	* finer grained "Select which modules to auto-activate"
21	* see http://jeremy.hu/customize-the-list-of-modules-available-in-jetpack/
22	* function jeherve_auto_activate_stats() {
23	return array( 'stats' );
24	}
25	add_filter( 'jetpack_get_default_modules', 'jeherve_auto_activate_stats' );
26	*
27	* TO CONSIDER
28	*
29	* Make blacklist or whitelist optional
30	*
31	* Option to disable JUMPSTART with "Jetpack_Options::update_option( 'jumpstart', 'jumpstart_dismissed' );" ??
32	* or do we need to go through apply_filters( 'jetpack_module_feature' ...
33	* If we want to be able to select which modules should appear in Jumpstart later!
34	*
35	* Can we disable Debug link in the footer menu? No...
36	*
37	* Option to "force_deactivate" (same as blacklist?) as described on https://github.com/Automattic/jetpack/issues/1452
38	*
39	*/
40
41
42	/**
43	* Jetpack Module Control Class
44	*
45	* since 0.1
46	*/
47	class Jetpack_Module_Control {
48
49	/**
50	* The single instance.
51	* @var object
52	* @access private
53	* @since 0.1
54	*/
55	private static $instance = null;
56
57	/**
58	* The plugins basename.
59	* @var string
60	* @access private
61	* @since 0.1
62	*/
63	private static $plugin_basename = null;
64
65	/**
66	* Current plugin version.
67	* @since 0.1
68	* @var string
69	*/
70	public $version = '1.4.1';
71
72	/**
73	* Available modules array
74	* @since 0.1
75	* @access private
76	* @var array
77	*/
78	private static $modules = null;
79
80	/**
81	* Know modules array with names
82	* @since 0.2
83	* @access private
84	* @var array
85	*/
86	private static $known_modules = array(
87	'after-the-deadline' => array( 'name' => 'Spelling and Grammar',
88	'requires_connection' => true ),
89	'carousel' => array( 'name' => 'Carousel',
90	'requires_connection' => false ),
91	'comments' => array( 'name' => 'Jetpack Comments',
92	'requires_connection' => true ),
93	'contact-form' => array( 'name' => 'Contact Form',
94	'requires_connection' => false ),
95	'custom-content-types' => array( 'name' => 'Custom Content Types',
96	'requires_connection' => false ),
97	'custom-css' => array( 'name' => 'Custom CSS',
98	'requires_connection' => false ),
99	'enhanced-distribution' => array( 'name' => 'Enhanced Distribution',
100	'requires_connection' => true ),
101	'gravatar-hovercards' => array( 'name' => 'Gravatar Hovercards',
102	'requires_connection' => false ),
103	'infinite-scroll' => array( 'name' => 'Infinite Scroll',
104	'requires_connection' => false ),
105	'json-api' => array( 'name' => 'JSON API',
106	'requires_connection' => true ),
107	'latex' => array( 'name' => 'Beautiful Math',
108	'requires_connection' => false ),
109	'likes' => array( 'name' => 'Likes',
110	'requires_connection' => true ),
111	'manage' => array( 'name' => 'Manage',
112	'requires_connection' => true ),
113	'markdown' => array( 'name' => 'Markdown',
114	'requires_connection' => false ),
115	'minileven' => array( 'name' => 'Mobile Theme',
116	'requires_connection' => false ),
117	'monitor' => array( 'name' => 'Monitor',
118	'requires_connection' => true ),
119	'notes' => array( 'name' => 'Notifications',
120	'requires_connection' => true ),
121	'omnisearch' => array( 'name' => 'Omnisearch',
122	'requires_connection' => false ),
123	'photon' => array( 'name' => 'Photon',
124	'requires_connection' => true ),
125	'post-by-email' => array( 'name' => 'Post by Email',
126	'requires_connection' => true ),
127	'protect' => array( 'name' => 'Protect',
128	'requires_connection' => true ),
129	'publicize' => array( 'name' => 'Publicize',
130	'requires_connection' => true ),
131	'related-posts' => array( 'name' => 'Related Posts',
132	'requires_connection' => true ),
133	'sharedaddy' => array( 'name' => 'Sharing',
134	'requires_connection' => false ),
135	'shortcodes' => array( 'name' => 'Shortcode Embeds',
136	'requires_connection' => false ),
137	'shortlinks' => array( 'name' => 'WP.me Shortlinks',
138	'requires_connection' => true ),
139	'site-icon' => array( 'name' => 'Site Icon',
140	'requires_connection' => false ),
141	'sitemaps' => array( 'name' => 'Sitemaps',
142	'requires_connection' => false ),
143	'sso' => array( 'name' => 'Jetpack Single Sign On',
144	'requires_connection' => true ),
145	'stats' => array( 'name' => 'WordPress.com Stats',
146	'requires_connection' => true ),
147	'subscriptions' => array( 'name' => 'Subscriptions',
148	'requires_connection' => true ),
149	'tiled-gallery' => array( 'name' => 'Tiled Galleries',
150	'requires_connection' => false ),
151	'vaultpress' => array( 'name' => 'VaultPress',
152	'requires_connection' => false ),
153	'verification-tools' => array( 'name' => 'Site Verification',
154	'requires_connection' => false ),
155	'videopress' => array( 'name' => 'VideoPress',
156	'requires_connection' => true ),
157	'widget-visibility' => array( 'name' => 'Widget Visibility',
158	'requires_connection' => false ),
159	'widgets' => array( 'name' => 'Extra Sidebar Widgets',
160	'requires_connection' => false )
161	);
162
163	/**
164	* Know modules array with dashicons
165	* https://developer.wordpress.org/resource/dashicons/
166	* TODO switch to http://genericons.com/
167	*
168	* @since 0.3
169	* @access private
170	* @var array
171	*/
172	private static $known_modules_icons = array(
173	'after-the-deadline' => 'edit',
174	'carousel' => 'camera',
175	'comments' => 'format-chat',
176	'contact-form' => 'feedback',
177	'custom-content-types' => 'media-default',
178	'custom-css' => 'admin-appearance',
179	'enhanced-distribution' => 'share',
180	'gravatar-hovercards' => 'id', // not available
181	'infinite-scroll' => 'star-filled',
182	'json-api' => 'share-alt',
183	'latex' => 'star-filled',
184	'likes' => 'star-filled',
185	'manage' => 'wordpress-alt',
186	'markdown' => 'editor-code',
187	'minileven' => 'smartphone',
188	'monitor' => 'flag',
189	'notes' => 'admin-comments',
190	'omnisearch' => 'search',
191	'photon' => 'visibility',
192	'post-by-email' => 'email',
193	'protect' => 'lock',
194	'publicize' => 'share',
195	'related-posts' => 'update',
196	'sharedaddy' => 'share-alt',
197	'shortcodes' => 'text',
198	'shortlinks' => 'admin-links',
199	'site-icon' => 'admin-site',
200	'sitemaps' => 'networking',
201	'sso' => 'wordpress-alt',
202	'stats' => 'wordpress-alt',
203	'subscriptions' => 'email',
204	'tiled-gallery' => 'layout',
205	'vaultpress' => 'shield-alt', // not availabe
206	'verification-tools' => 'clipboard', // maybe yes
207	'videopress' => 'controls-play',
208	'widget-visibility' => 'welcome-widgets-menus',
209	'widgets' => 'welcome-widgets-menus'
210	);
211
212	/**
213	* Default dashicon
214	* @since 1.0
215	* @access private
216	* @var string
217	*/
218	private static $default_icon = 'star-empty';
219
220	/**
221	* Return Jetpack available modules
222	* @since 0.1
223	* @return array
224	*/
225	private function get_available_modules() {
226	// TODO : consider removing connection dependent modules when 'jetpack_mc_development_mode' is ON
227
228	if ( null === self::$modules ) {
229	if ( class_exists('Jetpack') ) {
230	remove_filter( 'jetpack_get_available_modules', array($this, 'blacklist') );
231	$modules = array();
232	foreach ( Jetpack::get_available_modules() as $slug ) {
233	$module = Jetpack::get_module( $slug );
234	if ( $module )
235	$modules[$slug] = $module;
236	}
237	self::$modules = $modules;
238	add_filter( 'jetpack_get_available_modules', array($this, 'blacklist') );
239	} else {
240	self::$modules = self::$known_modules;
241	}
242	}
243	return self::$modules;
244	}
245
246	/**
247	* Return plugin basename
248	*
249	* @since 0.1
250	*
251	* @return string Plugin basename
252	*/
253	private function plugin_basename() {
254	if ( null === self::$plugin_basename ) {
255	self::$plugin_basename = plugin_basename( __FILE__ );
256	}
257	return self::$plugin_basename;
258	}
259
260	/**
261	* MANUAL CONTROL
262	*/
263
264	/**
265	* Adds the Manual Control option
266	*
267	* @since 0.1
268	* @see get_site_option(), checked(), disabled()
269	*
270	* @uses jetpack_mc_manual_control network option
271	* @echo Html Checkbox input field for jetpack_mc_manual_control option
272	* @return void
273	*/
274	public function manual_control_settings() {
275
276	if ( is_network_admin() ) {
277	// we're in network admin: retrieve network settings
278	$disabled = is_plugin_active_for_network('manual-control/manual-control.php');
279	$option = $disabled ? '1' : get_site_option('jetpack_mc_manual_control');
280	} else {
281	// we're in site admin
282	if ( is_plugin_active('manual-control/manual-control.php') ) {
283	$option = '1';
284	$disabled = true;
285	} else {
286	// retrieve site setting
287	$option = get_option('jetpack_mc_manual_control');
288	// fall back on network settings
289	if ( $option === false && is_multisite() ) $option = get_site_option('jetpack_mc_manual_control');
290	$disabled = defined('JETPACK_MC_LOCKDOWN') && JETPACK_MC_LOCKDOWN ? true : false;
291	}
292	}
293
294	?>
295	<label>
296	<input type='checkbox' name='jetpack_mc_manual_control' value='1'
297	<?php checked( $option, '1' ); ?>
298	<?php disabled( $disabled ); ?>>
299	<?php _e('Prevent Jetpack from auto-activating (new) modules','jetpack-module-control'); ?>
300	</label>
301	<p class="description"><?php echo sprintf( __('Note: The module %s is excepted from this rule.','jetpack-module-control'), translate_with_gettext_context('Protect','Module Name','jetpack') ); ?></p>
302	<?php
303
304	} // END manual_control_settings()
305
306	/**
307	* Activates Manual Control by returning an empty array on module auto-activation.
308	* First modelled after Manual Control for Jetpack by Mark Jaquith http://coveredwebservices.com/
309	* To be converted to allow selected modules instead of all or none.
310	*
311	* @since 0.1
312	* @see add_filter()
313	*/
314	public function manual_control( $modules ) {
315
316	$option = get_option('jetpack_mc_manual_control');
317	// if false, fall back on network settings
318	if ( $option === false && is_multisite() ) $option = get_site_option('jetpack_mc_manual_control');
319
320	return !empty($option) ? array() : $modules;
321
322	} // END manual_control()
323
324	/**
325	* DEVELOPMENT MODE
326	*/
327
328	/**
329	* Adds the Jetpack Without WordPress.com option
330	*
331	* @since 1.0
332	* @see get_site_option(), checked(), disabled()
333	*
334	* @echo Html Checkbox input field for jetpack_mc_development_mode option
335	* @return void
336	*/
337	public function development_mode_settings() {
338
339	if ( is_network_admin() ) {
340	// we're in network admin
341	if ( is_plugin_active_for_network('slimjetpack/slimjetpack.php') \|\| is_plugin_active_for_network('unplug-jetpack/unplug-jetpack.php') ) {
342	$option = '1';
343	$disabled = true;
344	} else {
345	// retrieve network settings
346	$option = get_site_option('jetpack_mc_development_mode');
347	$disabled = false;
348	}
349	} else {
350	// we're in site admin
351	if ( is_plugin_active('slimjetpack/slimjetpack.php') \|\| is_plugin_active('unplug-jetpack/unplug-jetpack.php') ) {
352	$option = '1';
353	$disabled = true;
354	} else {
355	//retrieve site setting
356	$option = get_option('jetpack_mc_development_mode');
357	// fall back on network settings
358	if ( $option === false && is_multisite() ) $option = get_site_option('jetpack_mc_development_mode');
359	$disabled = defined('JETPACK_MC_LOCKDOWN') && JETPACK_MC_LOCKDOWN ? true : false;
360	}
361	}
362
363	?>
364	<label>
365	<input type='checkbox' name='jetpack_mc_development_mode' value='1'
366	<?php checked( $option, '1' ); ?>
367	<?php disabled( $disabled ); ?>>
368	<?php _e('Use Jetpack modules without a WordPress.com connection','jetpack-module-control'); ?>
369	</label>
370	<p class="description"><?php _e('By forcing Jetpack into development mode, modules are used without a WordPress.com account. All modules that require a WordPress.com connection will be unavailable. These modules are marked with an asterisk (*) below. The admin message about Jetpack running in development mode will be hidden.','jetpack-module-control'); ?></p>
371	<?php
372
373	} // END development_mode_settings()
374
375	/**
376	* Activates Development Mode by returning true on jetpack_development_mode filter.
377	* Based on http://jeremy.hu/customize-the-list-of-modules-available-in-jetpack/
378	*
379	* @since 1.0
380	* @see add_filter()
381	*/
382	public function development_mode() {
383	$option = get_option('jetpack_mc_development_mode');
384	// if false, fall back on network settings
385	if ( $option === false && is_multisite() ) {
386	$option = get_site_option('jetpack_mc_development_mode');
387	}
388
389	return !empty($option) ? true : false;
390	}
391
392	/**
393	* ADMIN NOTICES
394	*/
395
396	/**
397	* Disables Centralized Site Management banner by returning false on can_display_jetpack_manage_notice filter.
398	*
399	* @since 0.1
400	* @see add_filter()
401	*/
402	private function no_manage_notice() {
403	$blacklist = get_option('jetpack_mc_blacklist');
404
405	// fall back on network setting
406	if ( $blacklist === false && is_multisite() ) $blacklist = get_site_option('jetpack_mc_blacklist');
407
408	if ( is_array( $blacklist ) && in_array( 'manage', $blacklist ) ) {
409	add_filter( 'can_display_jetpack_manage_notice', '__return_false' );
410	}
411	}
412
413	/**
414	* Disables Centralized Site Management banner by removing show_development_mode_notice from jetpack_notices actions.
415	*
416	* @since 0.1
417	* @see add_filter()
418	*/
419	private function no_dev_notice() {
420	if ( class_exists('Jetpack') && ( get_option('jetpack_mc_development_mode') \|\| get_site_option('jetpack_mc_development_mode') ) ) {
421	remove_action( 'jetpack_notices', array( Jetpack::init(), 'show_development_mode_notice' ) );
422	}
423	}
424
425	/**
426	* BLACKLIST
427	*/
428
429	/**
430	* Adds a checkmark list of modules to blacklist
431	*
432	* @since 0.1
433	* @see get_site_option(), checked()
434	*
435	* @uses jetpack_mc_blacklist network option
436	* @echo Html Checkbox input field table for jetpack_mc_blacklist option
437	*/
438	public function blacklist_settings() {
439
440	if ( is_network_admin() ) {
441	// in network admin retrieve network settings
442	$blacklist = get_site_option( 'jetpack_mc_blacklist', array() );
443	$disabled = false;
444	} else {
445	// in site admin retrieve site settings
446	$blacklist = get_option( 'jetpack_mc_blacklist' );
447	// fall back on network setting
448	if ( $blacklist === false && is_multisite() ) $blacklist = get_site_option('jetpack_mc_blacklist');
449	$disabled = defined('JETPACK_MC_LOCKDOWN') && JETPACK_MC_LOCKDOWN ? true : false;
450	}
451
452	// blacklist must be an array, if anything else then just make it an empty array
453	if ( !is_array($blacklist) ) $blacklist = array();
454
455	$modules = $this->get_available_modules();
456	asort($modules);
457
458	$icons = self::$known_modules_icons;
459
460	?>
461	<fieldset><legend class="screen-reader-text"><span><?php _e('Blacklist Modules','jetpack-module-control'); ?></span></legend>
462	<?php
463	foreach ( $modules as $slug => $module ) {
464	$icon = isset($icons[$slug]) ? $icons[$slug] : self::$default_icon;
465	?>
466	<label>
467	<input type='checkbox' name='jetpack_mc_blacklist[]' value='<?php echo $slug; ?>'
468	<?php checked( in_array( $slug, $blacklist ), true ); ?>
469	<?php disabled( $disabled ); ?>>
470	<span class="dashicons dashicons-<?php echo $icon; ?>"></span> <?php echo translate_with_gettext_context( $module['name'], 'Module Name', 'jetpack' ) ?>
471	</label><?php echo !empty($module['requires_connection']) && true === $module['requires_connection'] ? ' <a href="#jmc-note-1" style="text-decoration:none" title="' . __('Requires a WordPress.com connection','jetpack-module-control') . '">*</a>' : ''; ?><br>
472	<?php
473	}
474	?>
475	<aside role="note" id="jmc-note-1"><p class="description"><?php _e('*) Modules marked with an asterisk require a WordPress.com connection. They will be unavailable if Jetpack is forced into development mode.','jetpack-module-control'); ?></p></aside>
476	</fieldset>
477	<?php
478
479	} // END blacklist_settings()
480
481	/**
482	* Blacklist Jetpack modules
483	* Modelled after ParhamG's blacklist_jetpack_modules.php https://gist.github.com/ParhamG/6494979
484	*
485	* @since 0.1
486	* @param $modules
487	*
488	* @return Array Allowed modules after unsetting blacklisted modules from all modules array
489	*/
490	public function blacklist ( $modules ) {
491
492	$blacklist = get_option('jetpack_mc_blacklist');
493
494	// fall back on network setting
495	if ( $blacklist === false && is_multisite() ) $blacklist = get_site_option('jetpack_mc_blacklist');
496
497	foreach ( (array)$blacklist as $mod )
498	if ( isset( $modules[$mod] ) )
499	unset( $modules[$mod] );
500
501	return $modules;
502
503	}
504
505	/**
506	* ADMIN
507	*/
508
509	/**
510	* Initiate plugins admin stuff
511	*
512	* @since 0.1
513	*/
514	public function admin_init(){
515
516	$this->no_manage_notice();
517
518	$this->no_dev_notice();
519
520	if ( is_plugin_active_for_network( $this->plugin_basename() ) ) {
521	// Check for network activation, else these will also take effect when
522	// plugin is activated on the primary site alone.
523	// TODO : see if you can actually use this scenario where plugin is activatied on site 1 and
524	// network options can be set to serve as default settings for other site activations !
525
526	// Add settings to Network Settings
527	// thanks to http://zao.is/2013/07/adding-settings-to-network-settings-for-wordpress-multisite/
528	add_filter( 'wpmu_options', array( $this, 'show_network_settings' ) );
529	add_action( 'update_wpmu_options', array( $this, 'save_network_settings' ) );
530
531	// Plugin action links
532	add_filter( 'network_admin_plugin_action_links_' . $this->plugin_basename(), array($this, 'add_action_link') );
533	}
534
535	// Plugin action links
536	add_filter( 'plugin_action_links_' . $this->plugin_basename(), array($this, 'add_action_link') );
537
538	// Do regular register/add_settings stuff in 'general' settings on options-general.php
539	$settings = 'general';
540
541	add_settings_section('jetpack-module-control', '<a name="jetpack-mc"></a>' . __('Jetpack Module Control','jetpack-module-control'), array($this, 'add_settings_section'), $settings);
542
543	// register settings
544	if ( defined('JETPACK_MC_LOCKDOWN') && JETPACK_MC_LOCKDOWN ) {
545	// do not register site settings to prevent them being updated
546	} else {
547	register_setting( $settings, 'jetpack_mc_manual_control' ); // sanitize_callback 'boolval' ?
548	register_setting( $settings, 'jetpack_mc_development_mode' ); // sanitize_callback 'boolval' ?
549	register_setting( $settings, 'jetpack_mc_blacklist', 'array_values' );
550	}
551
552	// add settings fields
553	add_settings_field( 'jetpack_mc_manual_control', __('Manual Control','jetpack-module-control'), array($this, 'manual_control_settings'), $settings, 'jetpack-module-control' ); // array('label_for' => 'elementid')
554	add_settings_field( 'jetpack_mc_development_mode', __('Development Mode','jetpack-module-control'), array($this, 'development_mode_settings'), $settings, 'jetpack-module-control' ); // array('label_for' => 'elementid')
555	add_settings_field( 'jetpack_mc_blacklist', __('Blacklist Modules','jetpack-module-control'), array($this, 'blacklist_settings'), $settings, 'jetpack-module-control' );
556
557	}
558
559	/**
560	* Saves the network settings
561	*
562	* @since 0.2
563	*/
564	public function save_network_settings() {
565
566	$posted_settings = array(
567	'jetpack_mc_manual_control' => '',
568	'jetpack_mc_development_mode' => '',
569	'jetpack_mc_blacklist' => ''
570	);
571
572	isset( $_POST['jetpack_mc_manual_control'] ) && $posted_settings['jetpack_mc_manual_control'] = '1';
573
574	isset( $_POST['jetpack_mc_development_mode'] ) && $posted_settings['jetpack_mc_development_mode'] = '1';
575
576	isset( $_POST['jetpack_mc_blacklist'] ) && is_array( $_POST['jetpack_mc_blacklist'] ) && $posted_settings['jetpack_mc_blacklist'] = array_values( $_POST['jetpack_mc_blacklist'] );
577
578	foreach( $posted_settings as $name => $value ) {
579	update_site_option( $name, $value );
580	}
581
582	}
583
584	/**
585	* Prints the network settings
586	*
587	* @since 0.2
588	*/
589	public function show_network_settings() {
590	?>
591	<h3><a name="jetpack-mc"></a><?php _e('Jetpack Module Control','jetpack-module-control'); ?></h3>
592	<?php
593	$this->add_settings_section('');
594	?>
595	<table class="form-table">
596	<tbody>
597	<tr>
598	<th scope="row"><?php _e('Manual Control','jetpack-module-control'); ?></th>
599	<td>
600	<?php
601	$this->manual_control_settings();
602	?>
603	</td>
604	</tr>
605	<tr>
606	<th scope="row"><?php _e('Development Mode','jetpack-module-control'); ?></th>
607	<td>
608	<?php
609	$this->development_mode_settings();
610	?>
611	</td>
612	</tr>
613	<tr>
614	<th scope="row"><?php _e('Blacklist Modules','jetpack-module-control'); ?></th>
615	<td>
616	<?php
617	$this->blacklist_settings();
618	?>
619	</td>
620	</tr>
621	</tbody>
622	</table>
623	<?php
624	}
625
626	/**
627	* Echos a settings section header
628	*
629	* @since 0.1
630	*
631	* @param $option (unused)
632	* @echo Html
633	*/
634	public function add_settings_section( $option ) {
635	echo '<p><a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=ravanhagen%40gmail%2ecom&item_name=Jetpack%20Module%20Control&item_number='
636	. $this->version
637	. '&no_shipping=0&tax=0&charset=UTF%2d8&currency_code=EUR" title="'
638	. __('Donate to keep plugin development going!','jetpack-module-control')
639	. '" target="_blank"><img src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif" style="border:none;float:right;margin:5px 0 0 10px" alt="'
640	. __('Donate to keep plugin development going!','jetpack-module-control') . '" width="92" height="26" /></a>'
641	. sprintf(__('The options in this section are provided by %s.','jetpack-module-control'),'<strong><a href="http://status301.net/wordpress-plugins/jetpack-module-control/">'
642	. __('Jetpack Module Control','jetpack-module-control') . ' ' . $this->version . '</a></strong>') . ' '
643	. __('This plugin brings additional control over Jetpack modules. You can blacklist / remove individual modules, prevent auto-activation or allow activation without a WordPress.com account.','jetpack-module-control') . ' ';
644
645	if ( !is_multisite() )
646	echo sprintf(__('These settings can be locked down by adding %s to your wp-config.php file.','jetpack-module-control'),'<code>define(\'JETPACK_MC_LOCKDOWN\', true);</code>');
647	else if ( !is_network_admin() )
648	echo '<br><em>' . __('These settings are only visible to you as Super Admin and allow overriding the network settings on this site only.','jetpack-module-control') . '</em>';
649
650	echo '</p>';
651	}
652
653	/**
654	* Adds an action link on the Plugins page
655	*
656	* @since 0.1
657	* @see is_plugin_active_for_network(), admin_url(), network_admin_url()
658	*
659	* @param array $links Plugin de/activation and deletion links
660	* @return array Plugin links plus Settings link
661	*/
662	public function add_action_link( $links ) {
663	$settings_link = is_plugin_active_for_network( $this->plugin_basename() ) ?
664	'<a href="' . network_admin_url('settings.php#jetpack-mc') . '">' . translate('Network Settings') . '</a>' :
665	'<a href="' . admin_url('options-general.php#jetpack-mc') . '">' . translate('Settings') . '</a>';
666	return array_merge(
667	array( 'settings' => $settings_link ),
668	$links
669	);
670	return $links;
671	}
672
673	/**
674	* Routines to execute on plugins_loaded
675	*
676	* https://github.com/Automattic/jetpack/pull/2027 >> request accepted and fixed
677	*
678	* @since 0.1
679	*/
680	public function plugins_loaded() {
681	global $pagenow;
682
683	// only need translations on admin page
684	if ( is_admin() ) {
685	load_plugin_textdomain( 'jetpack-module-control', false, dirname( $this->plugin_basename() ) . '/languages/' );
686	}
687
688	add_filter( 'jetpack_get_default_modules', array( $this, 'manual_control' ), 99 );
689	add_filter( 'jetpack_development_mode', array( $this, 'development_mode' ) );
690	add_filter( 'jetpack_get_available_modules', array( $this, 'blacklist' ) );
691	}
692
693	/**
694	* Getter method for retrieving single object instance.
695	*
696	* @since 0.1
697	*
698	* @return Jetpack_Module_Control\|null instance object
699	*/
700	public static function instance() {
701	if(is_null(self::$instance)) {
702	self::$instance = new self();
703	}
704	return self::$instance;
705	}
706
707	/**
708	* Constructor
709	*
710	* @since 0.1
711	*/
712	private function __construct() {
713	add_action( 'plugins_loaded', array( $this, 'plugins_loaded' ), 0 );
714	add_action( 'admin_init', array($this,'admin_init'), 11 );
715	}
716
717	/**
718	* Cloning
719	*
720	* @since 0.1
721	*/
722	private function __clone() { }
723
724	}
725
726	Jetpack_Module_Control::instance();
727