339 lines
7.1 KiB
PHP
339 lines
7.1 KiB
PHP
<?php
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/**
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* WPSEO plugin file.
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*
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* @package WPSEO\Internals
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*/
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/**
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* Holder for SEO Rank information.
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*/
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class WPSEO_Rank {
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/**
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* Constant used for determining a bad SEO rating.
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*
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* @var string
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*/
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const BAD = 'bad';
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/**
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* Constant used for determining an OK SEO rating.
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*
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* @var string
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*/
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const OK = 'ok';
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/**
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* Constant used for determining a good SEO rating.
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*
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* @var string
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*/
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const GOOD = 'good';
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/**
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* Constant used for determining that no focus keyphrase is set.
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*
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* @var string
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*/
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const NO_FOCUS = 'na';
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/**
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* Constant used for determining that this content is not indexed.
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*
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* @var string
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*/
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const NO_INDEX = 'noindex';
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/**
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* All possible ranks.
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*
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* @var array
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*/
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protected static $ranks = [
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self::BAD,
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self::OK,
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self::GOOD,
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self::NO_FOCUS,
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self::NO_INDEX,
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];
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/**
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* Holds the translation from seo score slug to actual score range.
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*
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* @var array
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*/
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protected static $ranges = [
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self::NO_FOCUS => [
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'start' => 0,
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'end' => 0,
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],
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self::BAD => [
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'start' => 1,
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'end' => 40,
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],
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self::OK => [
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'start' => 41,
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'end' => 70,
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],
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self::GOOD => [
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'start' => 71,
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'end' => 100,
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],
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];
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/**
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* The current rank.
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*
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* @var int
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*/
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protected $rank;
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/**
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* WPSEO_Rank constructor.
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*
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* @param int $rank The actual rank.
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*/
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public function __construct( $rank ) {
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if ( ! in_array( $rank, self::$ranks, true ) ) {
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$rank = self::BAD;
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}
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$this->rank = $rank;
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}
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/**
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* Returns the saved rank for this rank.
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*
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* @return string
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*/
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public function get_rank() {
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return $this->rank;
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}
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/**
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* Returns a CSS class for this rank.
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*
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* @return string
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*/
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public function get_css_class() {
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$labels = [
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self::NO_FOCUS => 'na',
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self::NO_INDEX => 'noindex',
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self::BAD => 'bad',
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self::OK => 'ok',
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self::GOOD => 'good',
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];
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return $labels[ $this->rank ];
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}
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/**
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* Returns a label for this rank.
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*
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* @return string
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*/
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public function get_label() {
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$labels = [
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self::NO_FOCUS => __( 'Not available', 'wordpress-seo' ),
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self::NO_INDEX => __( 'No index', 'wordpress-seo' ),
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self::BAD => __( 'Needs improvement', 'wordpress-seo' ),
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self::OK => __( 'OK', 'wordpress-seo' ),
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self::GOOD => __( 'Good', 'wordpress-seo' ),
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];
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return $labels[ $this->rank ];
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}
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/**
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* Returns an inclusive language label for this rank.
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* The only difference with get_label above is that we return "Potentially non-inclusive" for an OK rank.
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*
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* @return string
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*/
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public function get_inclusive_language_label() {
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if ( $this->rank === self::OK ) {
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return __( 'Potentially non-inclusive', 'wordpress-seo' );
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}
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return $this->get_label();
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}
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/**
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* Returns a label for use in a drop down.
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*
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* @return mixed
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*/
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public function get_drop_down_label() {
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$labels = [
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self::NO_FOCUS => sprintf(
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/* translators: %s expands to the SEO score */
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__( 'SEO: %s', 'wordpress-seo' ),
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__( 'No Focus Keyphrase', 'wordpress-seo' )
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),
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self::BAD => sprintf(
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/* translators: %s expands to the SEO score */
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__( 'SEO: %s', 'wordpress-seo' ),
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__( 'Needs improvement', 'wordpress-seo' )
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),
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self::OK => sprintf(
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/* translators: %s expands to the SEO score */
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__( 'SEO: %s', 'wordpress-seo' ),
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__( 'OK', 'wordpress-seo' )
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),
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self::GOOD => sprintf(
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/* translators: %s expands to the SEO score */
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__( 'SEO: %s', 'wordpress-seo' ),
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__( 'Good', 'wordpress-seo' )
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),
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self::NO_INDEX => sprintf(
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/* translators: %s expands to the SEO score */
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__( 'SEO: %s', 'wordpress-seo' ),
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__( 'Post Noindexed', 'wordpress-seo' )
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),
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];
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return $labels[ $this->rank ];
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}
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/**
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* Gets the drop down labels for the readability score.
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*
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* @return string The readability rank label.
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*/
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public function get_drop_down_readability_labels() {
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$labels = [
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self::BAD => sprintf(
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/* translators: %s expands to the readability score */
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__( 'Readability: %s', 'wordpress-seo' ),
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__( 'Needs improvement', 'wordpress-seo' )
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),
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self::OK => sprintf(
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/* translators: %s expands to the readability score */
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__( 'Readability: %s', 'wordpress-seo' ),
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__( 'OK', 'wordpress-seo' )
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),
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self::GOOD => sprintf(
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/* translators: %s expands to the readability score */
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__( 'Readability: %s', 'wordpress-seo' ),
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__( 'Good', 'wordpress-seo' )
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),
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];
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return $labels[ $this->rank ];
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}
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/**
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* Gets the drop down labels for the inclusive language score.
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*
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* @return string The inclusive language rank label.
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*/
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public function get_drop_down_inclusive_language_labels() {
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$labels = [
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self::BAD => sprintf(
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/* translators: %s expands to the inclusive language score */
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__( 'Inclusive language: %s', 'wordpress-seo' ),
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__( 'Needs improvement', 'wordpress-seo' )
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),
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self::OK => sprintf(
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/* translators: %s expands to the inclusive language score */
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__( 'Inclusive language: %s', 'wordpress-seo' ),
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__( 'Potentially non-inclusive', 'wordpress-seo' )
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),
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self::GOOD => sprintf(
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/* translators: %s expands to the inclusive language score */
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__( 'Inclusive language: %s', 'wordpress-seo' ),
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__( 'Good', 'wordpress-seo' )
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),
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];
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return $labels[ $this->rank ];
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}
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/**
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* Get the starting score for this rank.
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*
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* @return int The start score.
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*/
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public function get_starting_score() {
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// No index does not have a starting score.
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if ( $this->rank === self::NO_INDEX ) {
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return -1;
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}
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return self::$ranges[ $this->rank ]['start'];
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}
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/**
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* Get the ending score for this rank.
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*
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* @return int The end score.
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*/
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public function get_end_score() {
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// No index does not have an end score.
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if ( $this->rank === self::NO_INDEX ) {
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return -1;
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}
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return self::$ranges[ $this->rank ]['end'];
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}
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/**
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* Returns a rank for a specific numeric score.
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*
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* @param int $score The score to determine a rank for.
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*
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* @return self
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*/
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public static function from_numeric_score( $score ) {
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// Set up the default value.
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$rank = new self( self::BAD );
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foreach ( self::$ranges as $rank_index => $range ) {
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if ( $range['start'] <= $score && $score <= $range['end'] ) {
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$rank = new self( $rank_index );
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break;
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}
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}
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return $rank;
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}
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/**
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* Returns a list of all possible SEO Ranks.
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*
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* @return WPSEO_Rank[]
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*/
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public static function get_all_ranks() {
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return array_map( [ 'WPSEO_Rank', 'create_rank' ], self::$ranks );
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}
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/**
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* Returns a list of all possible Readability Ranks.
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*
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* @return WPSEO_Rank[]
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*/
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public static function get_all_readability_ranks() {
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return array_map( [ 'WPSEO_Rank', 'create_rank' ], [ self::BAD, self::OK, self::GOOD ] );
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}
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/**
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* Returns a list of all possible Inclusive Language Ranks.
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*
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* @return WPSEO_Rank[]
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*/
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public static function get_all_inclusive_language_ranks() {
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return array_map( [ 'WPSEO_Rank', 'create_rank' ], [ self::BAD, self::OK, self::GOOD ] );
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}
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/**
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* Converts a numeric rank into a WPSEO_Rank object, for use in functional array_* functions.
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*
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* @param string $rank SEO Rank.
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*
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* @return WPSEO_Rank
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*/
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private static function create_rank( $rank ) {
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return new self( $rank );
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}
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}
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