Quiz_Shortcode::is_javascript_unavailable() - Code Metrics - Inspection of "Sync: Updated docs blocks for the filter and actio..." - Automattic/jetpack - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — fix/sync_published_post_action ( 131f15...e65cb4 )

unknown

created 2016-12-12 18:46 UTC

Quiz_Shortcode::is_javascript_unavailable() A

↳ Parent: Quiz_Shortcode

Complexity

Conditions	3
Paths	3

Size

Total Lines	11
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	3
eloc	6
nc	3
nop	0
dl	0
loc	11
rs	9.4285
c	0
b	0
f	0

<?php
/**
 * Quiz shortcode.
 *
 * Usage:
 *
 * [quiz]
 * [question]What's the right answer?[/question]
 * [wrong]This one?[explanation]Nope[/explanation][/wrong]
 * [answer]Yes, this is the one![explanation]Yay![/explanation][/answer]
 * [wrong]Maybe this one[explanation]Keep trying[/explanation][/wrong]
 * [wrong]How about this one?[explanation]Try again[/explanation][/wrong]
 * [/quiz]
 */
class Quiz_Shortcode {

	/**
	 * Parameters admitted by [quiz] shortcode.
	 *
	 * @since 4.5.0
	 *
	 * @var array
	 */
	private static $quiz_params = array();

	/**
	 * Whether the scripts were enqueued.
	 *
	 * @since 4.5.0
	 *
	 * @var bool
	 */
	private static $scripts_enqueued = false;

	/**
	 * In a8c training, store user currently logged in.
	 *
	 * @since 4.5.0
	 *
	 * @var null
	 */
	private static $username = null;

	/**
	 * Whether the noscript tag was already printed.
	 *
	 * @since 4.5.0
	 *
	 * @var bool
	 */
	private static $noscript_info_printed = false;

	/**
	 * Whether JavaScript is available.
	 *
	 * @since 4.5.0
	 *
	 * @var null
	 */
	private static $javascript_unavailable = null;

	/**
	 * Register all shortcodes.
	 *
	 * @since 4.5.0
	 */
	public static function init() {
		add_shortcode( 'quiz', array( __CLASS__, 'shortcode' ) );
		add_shortcode( 'question', array( __CLASS__, 'question_shortcode' ) );
		add_shortcode( 'answer', array( __CLASS__, 'answer_shortcode' ) );
		add_shortcode( 'wrong', array( __CLASS__, 'wrong_shortcode' ) );
		add_shortcode( 'explanation', array( __CLASS__, 'explanation_shortcode' ) );
	}

	/**
	 * Enqueue assets needed by the quiz,
	 *
	 * @since 4.5.0
	 */
	private static function enqueue_scripts() {
		wp_enqueue_style( 'quiz', plugins_url( 'css/quiz.css', __FILE__ ) );
		wp_enqueue_script( 'quiz', plugins_url( 'js/quiz.js', __FILE__ ), array( 'jquery' ), null, true );
	}

	/**
	 * Check if this is a feed and thus JS is unavailable.
	 *
	 * @since 4.5.0
	 *
	 * @return bool|null
	 */
	private static function is_javascript_unavailable() {
		if ( ! is_null( self::$javascript_unavailable ) ) {
			return self::$javascript_unavailable;
		}

		if ( is_feed() ) {
			return self::$javascript_unavailable = true;

		}

		return self::$javascript_unavailable = false;

	}

	/**
	 * Display message when JS is not available.
	 *
	 * @since 4.5.0
	 *
	 * @return string
	 */
	private static function noscript_info() {
		if ( self::$noscript_info_printed ) {
			return '';
		}
		self::$noscript_info_printed = true;
		return '<noscript><div><i>' . esc_html__( 'Please view this post in your web browser to complete the quiz.', 'jetpack' ) . '</i></div></noscript>';
	}

	/**
	 * Check if we're in WordPress.com.
	 *
	 * @since 4.5.0
	 *
	 * @return bool
	 */
	public static function is_wpcom() {
		return defined( 'IS_WPCOM' ) && IS_WPCOM;
	}

	/**
	 * Parse shortcode arguments and render its output.
	 *
	 * @since 4.5.0
	 *
	 * @param array  $atts    Shortcode parameters.
	 * @param string $content Content enclosed by shortcode tags.

	 *
	 * @return string
	 */
	public static function shortcode( $atts, $content = null ) {

		// There's nothing to do if there's nothing enclosed.
		if ( null == $content ) {

			return '';
		}

		$id = '';

		if ( self::is_javascript_unavailable() ) {
			// in an e-mail print the question and the info sentence once per question, too
			self::$noscript_info_printed = false;
		} else {

			if ( ! self::$scripts_enqueued ) {
				// lazy enqueue cannot use the wp_enqueue_scripts action anymore
				self::enqueue_scripts();
				self::$scripts_enqueued = true;
			}

			$default_atts = self::is_wpcom()
				? array(
					'trackid' => '',
					'a8ctraining' => '',
				)
				: array(
					'trackid' => '',
				);


			self::$quiz_params = shortcode_atts( $default_atts, $atts );

			if ( ! empty( self::$quiz_params[ 'trackid' ] ) ) {
				$id .= ' data-trackid="' . esc_attr( self::$quiz_params[ 'trackid' ] ) . '"';
			}
			if ( self::is_wpcom() && ! empty( self::$quiz_params[ 'a8ctraining' ] ) ) {
				if ( is_null( self::$username ) ) {
					self::$username = wp_get_current_user()->user_login;
				}
				$id .= ' data-a8ctraining="'. esc_attr( self::$quiz_params[ 'a8ctraining' ] ) . '" data-username="' . esc_attr( self::$username ) . '"';
			}
		}

		$quiz = self::do_shortcode( $content );
		return '<div class="quiz"' . $id . '>' . $quiz . '</div>';
	}

	/**
	 * Strip line breaks, restrict allowed HTML to a few whitelisted tags and execute nested shortcodes.
	 *
	 * @since 4.5.0
	 *
	 * @param string $content
	 *
	 * @return mixed|string
	 */
	private static function do_shortcode( $content ) {
		// strip autoinserted line breaks
		$content = preg_replace( '#(<(?:br /|/?p)>\n?)*(\[/?[a-z]+\])(<(?:br /|/?p)>\n?)*#', '$2', $content );

		// Add internal parameter so it's only rendered when it has it
		$content = preg_replace( '/\[(question|answer|wrong|explanation)\]/i', '[$1 quiz_item="true"]', $content );
		$content = do_shortcode( $content );
		$content = wp_kses( $content, array(
			'tt' => array(),
			'pre' => array(),
			'strong' => array(),
			'i' => array(),
			'br' => array(),
			'img' => array( 'src' => true),
			'div' => array( 'class' => true, 'data-correct' => 1, 'data-track-id' => 1, 'data-a8ctraining' => 1, 'data-username' => 1 ),
		) );
		return $content;
	}

	/**
	 * Render question.
	 *
	 * @since 4.5.0
	 *
	 * @param array $atts
	 * @param null  $content
	 *
	 * @return string
	 */
	public static function question_shortcode( $atts, $content = null ) {
		return isset( $atts['quiz_item'] )
			? '<div class="question">' . self::do_shortcode( $content ) . '</div>'
			: '';
	}

	/**
	 * Render correct answer.
	 *
	 * @since 4.5.0
	 *
	 * @param array $atts
	 * @param null  $content
	 *
	 * @return string
	 */
	public static function answer_shortcode( $atts, $content = null ) {
		if ( self::is_javascript_unavailable() ) {
			return self::noscript_info();
		}

		return isset( $atts['quiz_item'] )
			? '<div class="answer" data-correct="1">' . self::do_shortcode( $content ) . '</div>'
			: '';
	}

	/**
	 * Render wrong response.
	 *
	 * @since 4.5.0
	 *
	 * @param array $atts
	 * @param null  $content
	 *
	 * @return string
	 */
	public static function wrong_shortcode( $atts, $content = null ) {
		if ( self::is_javascript_unavailable() ) {
			return self::noscript_info();
		}

		return isset( $atts['quiz_item'] )
			? '<div class="answer">' . self::do_shortcode( $content ) . '</div>'
			: '';
	}

	/**
	 * Render explanation for wrong or right answer.
	 *
	 * @since 4.5.0
	 *
	 * @param array $atts
	 * @param null  $content
	 *
	 * @return string
	 */
	public static function explanation_shortcode( $atts, $content = null ) {
		if ( self::is_javascript_unavailable() ) {
			return self::noscript_info();
		}

		return isset( $atts['quiz_item'] )
			? '<div class="explanation">' . self::do_shortcode( $content ) . '</div>'
			: '';
	}
}

Quiz_Shortcode::init();


1		<?php
2		/**
3		* Quiz shortcode.
4		*
5		* Usage:
6		*
7		* [quiz]
8		* [question]What's the right answer?[/question]
9		* [wrong]This one?[explanation]Nope[/explanation][/wrong]
10		* [answer]Yes, this is the one![explanation]Yay![/explanation][/answer]
11		* [wrong]Maybe this one[explanation]Keep trying[/explanation][/wrong]
12		* [wrong]How about this one?[explanation]Try again[/explanation][/wrong]
13		* [/quiz]
14		*/
15		class Quiz_Shortcode {
16
17		/**
18		* Parameters admitted by [quiz] shortcode.
19		*
20		* @since 4.5.0
21		*
22		* @var array
23		*/
24		private static $quiz_params = array();
25
26		/**
27		* Whether the scripts were enqueued.
28		*
29		* @since 4.5.0
30		*
31		* @var bool
32		*/
33		private static $scripts_enqueued = false;
34
35		/**
36		* In a8c training, store user currently logged in.
37		*
38		* @since 4.5.0
39		*
40		* @var null
41		*/
42		private static $username = null;
43
44		/**
45		* Whether the noscript tag was already printed.
46		*
47		* @since 4.5.0
48		*
49		* @var bool
50		*/
51		private static $noscript_info_printed = false;
52
53		/**
54		* Whether JavaScript is available.
55		*
56		* @since 4.5.0
57		*
58		* @var null
59		*/
60		private static $javascript_unavailable = null;
61
62		/**
63		* Register all shortcodes.
64		*
65		* @since 4.5.0
66		*/
67		public static function init() {
68		add_shortcode( 'quiz', array( __CLASS__, 'shortcode' ) );
69		add_shortcode( 'question', array( __CLASS__, 'question_shortcode' ) );
70		add_shortcode( 'answer', array( __CLASS__, 'answer_shortcode' ) );
71		add_shortcode( 'wrong', array( __CLASS__, 'wrong_shortcode' ) );
72		add_shortcode( 'explanation', array( __CLASS__, 'explanation_shortcode' ) );
73		}
74
75		/**
76		* Enqueue assets needed by the quiz,
77		*
78		* @since 4.5.0
79		*/
80		private static function enqueue_scripts() {
81		wp_enqueue_style( 'quiz', plugins_url( 'css/quiz.css', __FILE__ ) );
82		wp_enqueue_script( 'quiz', plugins_url( 'js/quiz.js', __FILE__ ), array( 'jquery' ), null, true );
83		}
84
85		/**
86		* Check if this is a feed and thus JS is unavailable.
87		*
88		* @since 4.5.0
89		*
90		* @return bool\|null
91		*/
92		private static function is_javascript_unavailable() {
93		if ( ! is_null( self::$javascript_unavailable ) ) {
94		return self::$javascript_unavailable;
95		}
96
97		if ( is_feed() ) {
98		return self::$javascript_unavailable = true;
		0 ignored issues – show Documentation Bug introduced 2016-12-08 15:32 UTC by Report Bug Copy Issue Report It seems like `true` of type `boolean` is incompatible with the declared type `null` of property `$javascript_unavailable`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
99		}
100
101		return self::$javascript_unavailable = false;
		0 ignored issues – show Documentation Bug introduced 2016-12-08 15:32 UTC by Report Bug Copy Issue Report It seems like `false` of type `false` is incompatible with the declared type `null` of property `$javascript_unavailable`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
102		}
103
104		/**
105		* Display message when JS is not available.
106		*
107		* @since 4.5.0
108		*
109		* @return string
110		*/
111		private static function noscript_info() {
112		if ( self::$noscript_info_printed ) {
113		return '';
114		}
115		self::$noscript_info_printed = true;
116		return '<noscript><div><i>' . esc_html__( 'Please view this post in your web browser to complete the quiz.', 'jetpack' ) . '</i></div></noscript>';
117		}
118
119		/**
120		* Check if we're in WordPress.com.
121		*
122		* @since 4.5.0
123		*
124		* @return bool
125		*/
126		public static function is_wpcom() {
127		return defined( 'IS_WPCOM' ) && IS_WPCOM;
128		}
129
130		/**
131		* Parse shortcode arguments and render its output.
132		*
133		* @since 4.5.0
134		*
135		* @param array $atts Shortcode parameters.
136		* @param string $content Content enclosed by shortcode tags.
		0 ignored issues – show Documentation introduced 2016-12-08 15:32 UTC by Report Bug Copy Issue Report Should the type for parameter `$content` not be `string\|null`? This check looks for `@param` annotations where the type inferred by our type inference engine differs from the declared type. It makes a suggestion as to what type it considers more descriptive. Most often this is a case of a parameter that can be null in addition to its declared types. Loading history...
137		*
138		* @return string
139		*/
140		public static function shortcode( $atts, $content = null ) {
141
142		// There's nothing to do if there's nothing enclosed.
143		if ( null == $content ) {
		0 ignored issues – show Bug introduced 2016-12-08 19:01 UTC by Report Bug Copy Issue Report It seems like you are loosely comparing `$content` of type `string\|null` against `null`; this is ambiguous if the string can be empty. Consider using a strict comparison `===` instead. Loading history...
144		return '';
145		}
146
147		$id = '';
148
149		if ( self::is_javascript_unavailable() ) {
150		// in an e-mail print the question and the info sentence once per question, too
151		self::$noscript_info_printed = false;
152		} else {
153
154		if ( ! self::$scripts_enqueued ) {
155		// lazy enqueue cannot use the wp_enqueue_scripts action anymore
156		self::enqueue_scripts();
157		self::$scripts_enqueued = true;
158		}
159
160		$default_atts = self::is_wpcom()
161		? array(
162		'trackid' => '',
163		'a8ctraining' => '',
164		)
165		: array(
166		'trackid' => '',
167		);
168
169
170		self::$quiz_params = shortcode_atts( $default_atts, $atts );
171
172		if ( ! empty( self::$quiz_params[ 'trackid' ] ) ) {
173		$id .= ' data-trackid="' . esc_attr( self::$quiz_params[ 'trackid' ] ) . '"';
174		}
175		if ( self::is_wpcom() && ! empty( self::$quiz_params[ 'a8ctraining' ] ) ) {
176		if ( is_null( self::$username ) ) {
177		self::$username = wp_get_current_user()->user_login;
178		}
179		$id .= ' data-a8ctraining="'. esc_attr( self::$quiz_params[ 'a8ctraining' ] ) . '" data-username="' . esc_attr( self::$username ) . '"';
180		}
181		}
182
183		$quiz = self::do_shortcode( $content );
184		return '<div class="quiz"' . $id . '>' . $quiz . '</div>';
185		}
186
187		/**
188		* Strip line breaks, restrict allowed HTML to a few whitelisted tags and execute nested shortcodes.
189		*
190		* @since 4.5.0
191		*
192		* @param string $content
193		*
194		* @return mixed\|string
195		*/
196		private static function do_shortcode( $content ) {
197		// strip autoinserted line breaks
198		$content = preg_replace( '#(<(?:br /\|/?p)>\n?)(\[/?[a-z]+\])(<(?:br /\|/?p)>\n?)#', '$2', $content );
199
200		// Add internal parameter so it's only rendered when it has it
201		$content = preg_replace( '/\[(question\|answer\|wrong\|explanation)\]/i', '[$1 quiz_item="true"]', $content );
202		$content = do_shortcode( $content );
203		$content = wp_kses( $content, array(
204		'tt' => array(),
205		'pre' => array(),
206		'strong' => array(),
207		'i' => array(),
208		'br' => array(),
209		'img' => array( 'src' => true),
210		'div' => array( 'class' => true, 'data-correct' => 1, 'data-track-id' => 1, 'data-a8ctraining' => 1, 'data-username' => 1 ),
211		) );
212		return $content;
213		}
214
215		/**
216		* Render question.
217		*
218		* @since 4.5.0
219		*
220		* @param array $atts
221		* @param null $content
222		*
223		* @return string
224		*/
225		public static function question_shortcode( $atts, $content = null ) {
226		return isset( $atts['quiz_item'] )
227		? '<div class="question">' . self::do_shortcode( $content ) . '</div>'
228		: '';
229		}
230
231		/**
232		* Render correct answer.
233		*
234		* @since 4.5.0
235		*
236		* @param array $atts
237		* @param null $content
238		*
239		* @return string
240		*/
241	View Code Duplication	public static function answer_shortcode( $atts, $content = null ) {
242		if ( self::is_javascript_unavailable() ) {
243		return self::noscript_info();
244		}
245
246		return isset( $atts['quiz_item'] )
247		? '<div class="answer" data-correct="1">' . self::do_shortcode( $content ) . '</div>'
248		: '';
249		}
250
251		/**
252		* Render wrong response.
253		*
254		* @since 4.5.0
255		*
256		* @param array $atts
257		* @param null $content
258		*
259		* @return string
260		*/
261	View Code Duplication	public static function wrong_shortcode( $atts, $content = null ) {
262		if ( self::is_javascript_unavailable() ) {
263		return self::noscript_info();
264		}
265
266		return isset( $atts['quiz_item'] )
267		? '<div class="answer">' . self::do_shortcode( $content ) . '</div>'
268		: '';
269		}
270
271		/**
272		* Render explanation for wrong or right answer.
273		*
274		* @since 4.5.0
275		*
276		* @param array $atts
277		* @param null $content
278		*
279		* @return string
280		*/
281	View Code Duplication	public static function explanation_shortcode( $atts, $content = null ) {
282		if ( self::is_javascript_unavailable() ) {
283		return self::noscript_info();
284		}
285
286		return isset( $atts['quiz_item'] )
287		? '<div class="explanation">' . self::do_shortcode( $content ) . '</div>'
288		: '';
289		}
290		}
291
292		Quiz_Shortcode::init();
293

Automattic / jetpack

Push — fix/sync_published_post_action ( 131f15...e65cb4 )

Quiz_Shortcode::is_javascript_unavailable() A

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like