jetpack / modules / widgets / facebook-likebox.php

facebook-likebox.php in Jetpack – WP Security, Backup, Speed, & Growth 7.8, at modules/widgets/facebook-likebox.php

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1	<?php
2
3	/**
4	* Register the widget for use in Appearance -> Widgets
5	*/
6	add_action( 'widgets_init', 'jetpack_facebook_likebox_init' );
7
8	function jetpack_facebook_likebox_init() {
9	register_widget( 'WPCOM_Widget_Facebook_LikeBox' );
10	}
11
12	/**
13	* Facebook Page Plugin (formerly known as the Like Box)
14	* Display a Facebook Page Plugin as a widget (replaces the old like box plugin)
15	* https://developers.facebook.com/docs/plugins/page-plugin
16	*/
17	class WPCOM_Widget_Facebook_LikeBox extends WP_Widget {
18
19	private $default_height = 580;
20	private $default_width = 340;
21	private $max_width = 500;
22	private $min_width = 180;
23	private $max_height = 9999;
24	private $min_height = 130;
25
26	function __construct() {
27	parent::__construct(
28	'facebook-likebox',
29	/**
30	* Filter the name of a widget included in the Extra Sidebar Widgets module.
31	*
32	* @module widgets
33	*
34	* @since 2.1.2
35	*
36	* @param string $widget_name Widget title.
37	*/
38	apply_filters( 'jetpack_widget_name', __( 'Facebook Page Plugin', 'jetpack' ) ),
39	array(
40	'classname' => 'widget_facebook_likebox',
41	'description' => __( 'Use the Facebook Page Plugin to connect visitors to your Facebook Page', 'jetpack' ),
42	'customize_selective_refresh' => true,
43	)
44	);
45
46	if ( is_active_widget( false, false, $this->id_base ) \|\| is_active_widget( false, false, 'monster' ) \|\| is_customize_preview() ) {
47	add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
48	}
49	}
50
51	/**
52	* Enqueue scripts.
53	*/
54	public function enqueue_scripts() {
55	wp_enqueue_script( 'jetpack-facebook-embed' );
56	wp_enqueue_style( 'jetpack_facebook_likebox', plugins_url( 'facebook-likebox/style.css', __FILE__ ) );
57	wp_style_add_data( 'jetpack_facebook_likebox', 'jetpack-inline', true );
58	}
59
60	function widget( $args, $instance ) {
61	extract( $args );
62
63	$like_args = $this->normalize_facebook_args( $instance['like_args'] );
64
65	if ( empty( $like_args['href'] ) \|\| ! $this->is_valid_facebook_url( $like_args['href'] ) ) {
66	if ( current_user_can( 'edit_theme_options' ) ) {
67	echo $before_widget;
68	echo '<p>' . sprintf( __( 'It looks like your Facebook URL is incorrectly configured. Please check it in your <a href="%s">widget settings</a>.', 'jetpack' ), admin_url( 'widgets.php' ) ) . '</p>';
69	echo $after_widget;
70	}
71	echo '<!-- Invalid Facebook Page URL -->';
72	return;
73	}
74
75	/** This filter is documented in core/src/wp-includes/default-widgets.php */
76	$title = apply_filters( 'widget_title', $instance['title'] );
77	$page_url = set_url_scheme( $like_args['href'], 'https' );
78
79	$like_args['show_faces'] = (bool) $like_args['show_faces'] ? 'true' : 'false';
80	$like_args['stream'] = (bool) $like_args['stream'] ? 'true' : 'false';
81	$like_args['cover'] = (bool) $like_args['cover'] ? 'false' : 'true';
82
83	echo $before_widget;
84
85	if ( ! empty( $title ) ) :
86	echo $before_title;
87
88	$likebox_widget_title = '<a href="' . esc_url( $page_url ) . '">' . esc_html( $title ) . '</a>';
89
90	/**
91	* Filter Facebook Likebox's widget title.
92	*
93	* @module widgets
94	*
95	* @since 3.3.0
96	*
97	* @param string $likebox_widget_title Likebox Widget title (including a link to the Page URL).
98	* @param string $title Widget title as set in the widget settings.
99	* @param string $page_url Facebook Page URL.
100	*/
101	echo apply_filters( 'jetpack_facebook_likebox_title', $likebox_widget_title, $title, $page_url );
102
103	echo $after_title;
104	endif;
105
106	?>
107	<div id="fb-root"></div>
108	<div class="fb-page" data-href="<?php echo esc_url( $page_url ); ?>" data-width="<?php echo intval( $like_args['width'] ); ?>" data-height="<?php echo intval( $like_args['height'] ); ?>" data-hide-cover="<?php echo esc_attr( $like_args['cover'] ); ?>" data-show-facepile="<?php echo esc_attr( $like_args['show_faces'] ); ?>" data-show-posts="<?php echo esc_attr( $like_args['stream'] ); ?>">
109	<div class="fb-xfbml-parse-ignore"><blockquote cite="<?php echo esc_url( $page_url ); ?>"><a href="<?php echo esc_url( $page_url ); ?>"><?php echo esc_html( $title ); ?></a></blockquote></div>
110	</div>
111	<?php
112	wp_enqueue_script( 'jetpack-facebook-embed' );
113	echo $after_widget;
114
115	/** This action is documented in modules/widgets/gravatar-profile.php */
116	do_action( 'jetpack_stats_extra', 'widget_view', 'facebook-likebox' );
117	}
118
119	function update( $new_instance, $old_instance ) {
120	$instance = array(
121	'title' => '',
122	'like_args' => $this->get_default_args(),
123	);
124
125	$instance['title'] = trim( strip_tags( stripslashes( $new_instance['title'] ) ) );
126
127	// Set up widget values
128	$instance['like_args'] = array(
129	'href' => trim( strip_tags( stripslashes( $new_instance['href'] ) ) ),
130	'width' => (int) $new_instance['width'],
131	'height' => (int) $new_instance['height'],
132	'show_faces' => isset( $new_instance['show_faces'] ),
133	'stream' => isset( $new_instance['stream'] ),
134	'cover' => isset( $new_instance['cover'] ),
135	);
136
137	$instance['like_args'] = $this->normalize_facebook_args( $instance['like_args'] );
138
139	return $instance;
140	}
141
142	function form( $instance ) {
143	$instance = wp_parse_args(
144	(array) $instance, array(
145	'title' => '',
146	'like_args' => $this->get_default_args(),
147	)
148	);
149	$like_args = $this->normalize_facebook_args( $instance['like_args'] );
150	?>
151
152	<p>
153	<label for="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>">
154	<?php _e( 'Title', 'jetpack' ); ?>
155	<input type="text" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>" value="<?php echo esc_attr( $instance['title'] ); ?>" class="widefat" />
156	</label>
157	</p>
158
159	<p>
160	<label for="<?php echo esc_attr( $this->get_field_id( 'href' ) ); ?>">
161	<?php _e( 'Facebook Page URL', 'jetpack' ); ?>
162	<input type="text" name="<?php echo esc_attr( $this->get_field_name( 'href' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'href' ) ); ?>" value="<?php echo esc_url( $like_args['href'] ); ?>" class="widefat" />
163	<br />
164	<small><?php _e( 'The widget only works with Facebook Pages.', 'jetpack' ); ?></small>
165	</label>
166	</p>
167
168	<p>
169	<label for="<?php echo esc_attr( $this->get_field_id( 'width' ) ); ?>">
170	<?php _e( 'Width in pixels', 'jetpack' ); ?>
171	<input type="number" class="smalltext" min="<?php echo esc_attr( $this->min_width ); ?>" max="<?php echo esc_attr( $this->max_width ); ?>" maxlength="3" name="<?php echo esc_attr( $this->get_field_name( 'width' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'width' ) ); ?>" value="<?php echo esc_attr( $like_args['width'] ); ?>" style="text-align: center;" />
172	<small><?php echo sprintf( __( 'Minimum: %s', 'jetpack' ), $this->min_width ); ?> / <?php echo sprintf( __( 'Maximum: %s', 'jetpack' ), $this->max_width ); ?></small>
173	</label>
174	</p>
175
176	<p>
177	<label for="<?php echo esc_attr( $this->get_field_id( 'height' ) ); ?>">
178	<?php _e( 'Height in pixels', 'jetpack' ); ?>
179	<input type="number" class="smalltext" min="<?php echo esc_attr( $this->min_height ); ?>" max="<?php echo esc_attr( $this->max_height ); ?>" maxlength="3" name="<?php echo esc_attr( $this->get_field_name( 'height' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'height' ) ); ?>" value="<?php echo esc_attr( $like_args['height'] ); ?>" style="text-align: center;" />
180	<small><?php echo sprintf( __( 'Minimum: %s', 'jetpack' ), $this->min_height ); ?> / <?php echo sprintf( __( 'Maximum: %s', 'jetpack' ), $this->max_height ); ?></small>
181	</label>
182	</p>
183
184	<p>
185	<label for="<?php echo esc_attr( $this->get_field_id( 'show_faces' ) ); ?>">
186	<input type="checkbox" name="<?php echo esc_attr( $this->get_field_name( 'show_faces' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'show_faces' ) ); ?>" <?php checked( $like_args['show_faces'] ); ?> />
187	<?php _e( 'Show Faces', 'jetpack' ); ?>
188	<br />
189	<small><?php _e( 'Show profile photos in the plugin.', 'jetpack' ); ?></small>
190	</label>
191	</p>
192
193	<p>
194	<label for="<?php echo esc_attr( $this->get_field_id( 'stream' ) ); ?>">
195	<input type="checkbox" name="<?php echo esc_attr( $this->get_field_name( 'stream' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'stream' ) ); ?>" <?php checked( $like_args['stream'] ); ?> />
196	<?php _e( 'Show Stream', 'jetpack' ); ?>
197	<br />
198	<small><?php _e( 'Show Page Posts.', 'jetpack' ); ?></small>
199	</label>
200	</p>
201
202	<p>
203	<label for="<?php echo esc_attr( $this->get_field_id( 'cover' ) ); ?>">
204	<input type="checkbox" name="<?php echo esc_attr( $this->get_field_name( 'cover' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'cover' ) ); ?>" <?php checked( $like_args['cover'] ); ?> />
205	<?php _e( 'Show Cover Photo', 'jetpack' ); ?>
206	<br />
207	</label>
208	</p>
209
210	<?php
211	}
212
213	function get_default_args() {
214	$defaults = array(
215	'href' => '',
216	'width' => $this->default_width,
217	'height' => $this->default_height,
218	'show_faces' => 'true',
219	'stream' => '',
220	'cover' => 'true',
221	);
222
223	/**
224	* Filter Facebook Likebox default options.
225	*
226	* @module widgets
227	*
228	* @since 1.3.1
229	*
230	* @param array $defaults Array of default options.
231	*/
232	return apply_filters( 'jetpack_facebook_likebox_defaults', $defaults );
233	}
234
235	function normalize_facebook_args( $args ) {
236	$args = wp_parse_args( (array) $args, $this->get_default_args() );
237
238	// Validate the Facebook Page URL
239	if ( $this->is_valid_facebook_url( $args['href'] ) ) {
240	$temp = explode( '?', $args['href'] );
241	$args['href'] = str_replace( array( 'http://facebook.com', 'https://facebook.com' ), array( 'http://www.facebook.com', 'https://www.facebook.com' ), $temp[0] );
242	} else {
243	$args['href'] = '';
244	}
245
246	$args['width'] = $this->normalize_int_value( (int) $args['width'], $this->default_width, $this->max_width, $this->min_width );
247	$args['height'] = $this->normalize_int_value( (int) $args['height'], $this->default_height, $this->max_height, $this->min_height );
248	$args['show_faces'] = (bool) $args['show_faces'];
249	$args['stream'] = (bool) $args['stream'];
250	$args['cover'] = (bool) $args['cover'];
251
252	// The height used to be dependent on other widget settings
253	// If the user changes those settings but doesn't customize the height,
254	// let's intelligently assign a new height.
255	if ( in_array( $args['height'], array( 580, 110, 432 ) ) ) {
256	if ( $args['show_faces'] && $args['stream'] ) {
257	$args['height'] = 580;
258	} elseif ( ! $args['show_faces'] && ! $args['stream'] ) {
259	$args['height'] = 130;
260	} else {
261	$args['height'] = 432;
262	}
263	}
264
265	return $args;
266	}
267
268	function is_valid_facebook_url( $url ) {
269	return ( false !== strpos( $url, 'facebook.com' ) ) ? true : false;
270	}
271
272	function normalize_int_value( $value, $default = 0, $max = 0, $min = 0 ) {
273	$value = (int) $value;
274
275	if ( $value > $max ) {
276	$value = $max;
277	} elseif ( $value < $min ) {
278	$value = $min;
279	}
280
281	return (int) $value;
282	}
283
284	function normalize_text_value( $value, $default = '', $allowed = array() ) {
285	$allowed = (array) $allowed;
286
287	if ( empty( $value ) \|\| ( ! empty( $allowed ) && ! in_array( $value, $allowed ) ) ) {
288	$value = $default;
289	}
290
291	return $value;
292	}
293
294	/**
295	* @deprecated
296	*/
297	function guess_locale_from_lang( $lang ) {
298	_deprecated_function( __METHOD__, '4.0.0', 'Jetpack::guess_locale_from_lang()' );
299	Jetpack::$instance->guess_locale_from_lang( $lang );
300	}
301
302	/**
303	* @deprecated
304	*/
305	function get_locale() {
306	_deprecated_function( __METHOD__, '4.0.0', 'Jetpack::get_locale()' );
307	Jetpack::$instance->get_locale();
308	}
309	}
310