mediawiki-extensions-Relate.../includes/Hooks.php
Baha 95ea0b0ef7 Make RelatedArticles available as a beta feature
Hide the related articles from the sidebar if ReadMore is enabled.
Otherwise leave as is because it's used in WikiVoyage.

Bug: T117444
Change-Id: I3879ae1e53de301b0d3f5f2c066f8e8de7c1c223
2015-11-25 20:43:51 +05:00

307 lines
8.7 KiB
PHP

<?php
namespace RelatedArticles;
use BetaFeatures;
use ConfigFactory;
use Parser;
use Exception;
use Title;
use SkinTemplate;
use BaseTemplate;
use Skin;
use Html;
use OutputPage;
use ParserOutput;
use User;
class Hooks {
/**
* Handler for the <code>ParserFirstCallInit</code> hook.
*
* Registers the <code>related</code> parser function (see
* {@see Hooks::onFuncRelated}).
*
* @param Parser $parser
* @return boolean Always <code>true</code>
*/
public static function onParserFirstCallInit( Parser &$parser ) {
$parser->setFunctionHook( 'related', 'RelatedArticles\\Hooks::onFuncRelated' );
return true;
}
/**
* The <code>related</code> parser function.
*
* Appends the arguments to the internal list so that it can be used
* more that once per page.
* We don't use setProperty here is there is no need
* to store it as a page prop in the database, only in the cache.
*
* @todo Test for uniqueness
* @param Parser $parser
*
* @return string Always <code>''</code>
*/
public static function onFuncRelated( Parser $parser ) {
$parserOutput = $parser->getOutput();
$relatedPages = $parserOutput->getExtensionData( 'RelatedArticles' );
if ( !$relatedPages ) {
$relatedPages = array();
}
$args = func_get_args();
array_shift( $args );
// Add all the related pages passed by the parser function
// {{#related:Test with read more|Foo|Bar}}
foreach ( $args as $relatedPage ) {
$relatedPages[] = $relatedPage;
}
$parserOutput->setExtensionData( 'RelatedArticles', $relatedPages );
return '';
}
/**
* Handler for the <code>ParserClearState</code> hook.
*
* Empties the internal list so that related pages are not passed on to future
* ParserOutput's - note that {{#related:Foo}} appends and can be used multiple times
* in the page.
*
* @param Parser $parser
* @return boolean Always <code>true</code>
*/
public static function onParserClearState( Parser &$parser ) {
$parserOutput = $parser->getOutput();
$parserOutput->setExtensionData( 'RelatedArticles', array() );
// FIXME: Remove in 30 days (T115698)
$parserOutput->unsetProperty( 'RelatedArticles' );
return true;
}
/**
* Passes the related pages list from the cached parser output
* object to the output page for rendering.
*
* The list of related pages will be retrieved using
* <code>ParserOutput#getExtensionData</code>.
*
* @param OutputPage $out
* @param ParserOutput $parserOutput
* @return boolean Always <code>true</code>
*/
public static function onOutputPageParserOutput( OutputPage &$out, ParserOutput $parserOutput ) {
$related = $parserOutput->getExtensionData( 'RelatedArticles' );
if ( $related ) {
$out->setProperty( 'RelatedArticles', $related );
}
return true;
}
/**
* Generates anchor element attributes for each entry in list of pages.
*
* The attributes that are generated are: <code>href</code>,
* <code>text</code>, and <code>class</code>, with the latter always
* set to <code>"interwiki-relart"</code>.
*
* If the the page is of the form <code>"Foo && Bar"</code>, then
* the <code>text</code> attribute will be set to "Bar", otherwise the
* page's {@see Title::getPrefixedText prefixed text} will be used.
*
* @param array[string] $relatedPages
* @return array An array of maps, each with <code>href</code>,
* <code>text</code>, and <code>class</code> entries.
*/
private static function getRelatedPagesUrls( array $relatedPages ) {
$relatedPagesUrls = array();
foreach ( $relatedPages as $page ) {
// Tribute to Evan
$page = urldecode( $page );
$altText = '';
if ( preg_match( '/\&\&/', $page ) ) {
$parts = array_map( 'trim', explode( '&&', $page, 2 ) );
$page = $parts[0];
$altText = $parts[1];
}
$title = Title::newFromText( $page );
if ( $title ) {
$relatedPagesUrls[] = array(
'href' => $title->getLocalURL(),
'text' => $altText ?: $title->getPrefixedText(),
'class' => 'interwiki-relart'
);
}
};
return $relatedPagesUrls;
}
/**
* Handler for the <code>SkinBuildSidebar</code> hook.
*
* Retrieves the list of related pages
* and adds its HTML representation to the sidebar if the ReadMore feature
* is disabled and the beta feature is enabled by the user.
*
* @param Skin $skin
* @param array $bar
* @return boolean Always <code>true</code>
*/
public static function onSkinBuildSidebar( Skin $skin, &$bar ) {
$out = $skin->getOutput();
$relatedPages = $out->getProperty( 'RelatedArticles' );
if ( !Hooks::isAbleToShowRelatedPages( $relatedPages, $out->getUser() ) ) {
return true;
}
$relatedPagesUrls = self::getRelatedPagesUrls( $relatedPages );
// build relatedarticles <li>'s
$relatedPages = array();
foreach ( (array) $relatedPagesUrls as $url ) {
$relatedPages[] =
Html::rawElement( 'li', array( 'class' => htmlspecialchars( $url['class'] ) ),
Html::element( 'a', array( 'href' => htmlspecialchars( $url['href'] ) ),
$url['text']
)
);
}
// build complete html
$bar[$skin->msg( 'relatedarticles-title' )->text()] =
Html::rawElement( 'ul', array(),
implode( '', $relatedPages )
);
return true;
}
/**
* Handler for the <code>SkinTemplateToolboxEnd</code> hook.
*
* Retrieves the list of related pages from the template and
* <code>echo</code>s its HTML representation to the sidebar if the
* ReadMore feature is disabled and the beta feature is enabled by the user.
*
* @param SkinTemplate $skinTpl
* @return boolean Always <code>true</code>
*/
public static function onSkinTemplateToolboxEnd( BaseTemplate &$skinTpl ) {
$out = $skinTpl->getSkin()->getOutput();
$relatedPages = $out->getProperty( 'RelatedArticles' );
if ( !Hooks::isAbleToShowRelatedPages( $relatedPages, $out->getUser() ) ) {
return true;
}
$relatedPagesUrls = self::getRelatedPagesUrls( $relatedPages );
// build relatedarticles <li>'s
$relatedPages = array();
foreach ( (array) $relatedPagesUrls as $url ) {
$relatedPages[] =
Html::rawElement( 'li', array( 'class' => htmlspecialchars( $url['class'] ) ),
Html::element( 'a', array( 'href' => htmlspecialchars( $url['href'] ) ),
$url['text']
)
);
}
// build complete html
echo
Html::closeElement( 'ul' ) .
Html::closeElement( 'div' ) .
Html::closeElement( 'div' ) .
Html::openElement( 'div', array(
'class' => 'portal',
'role' => 'navigation',
'id' => 'p-relatedarticles',
) ) .
Html::element( 'h3', array(), wfMessage( 'relatedarticles-title' )->text() ) .
Html::openElement( 'div', array( 'class' => 'body' ) ) .
Html::openElement( 'ul' ) .
implode( '', $relatedPages );
return true;
}
/**
* Handler for the <code>UnitTestsList</code> hook.
*
* Adds the path to this extension's PHPUnit test suite to the set of
* paths.
*
* @param array $paths
* @return boolean Always <code>true</code>
*/
public static function onUnitTestsList( array &$paths ) {
$paths[] = __DIR__ . '/../tests/phpunit';
return true;
}
/**
* GetBetaFeaturePreferences hook handler
* @see https://www.mediawiki.org/wiki/Manual:Hooks/GetBetaFeaturePreferences
*
* @param User $user
* @param array $preferences
*
* @return bool
*/
public static function onGetBetaFeaturePreferences( User $user, array &$preferences ) {
$config = ConfigFactory::getDefaultInstance()->makeConfig( 'RelatedArticles' );
$wgExtensionAssetsPath = $config->get( 'ExtensionAssetsPath' );
$preferences['read-more'] = array(
'label-message' => 'relatedarticles-read-more-beta-feature-title',
'desc-message' => 'relatedarticles-read-more-beta-feature-description',
'screenshot' => array(
'ltr' => "$wgExtensionAssetsPath/RelatedArticles/images/BetaFeatures/wb-readmore-beta-ltr.svg",
'rtl' => "$wgExtensionAssetsPath/RelatedArticles/images/BetaFeatures/wb-readmore-beta-rtl.svg",
),
'info-link' => 'https://www.mediawiki.org/wiki/Reading/Web/Projects/Read_more',
'discussion-link' => 'https://www.mediawiki.org/wiki/Talk:Reading/Web/Projects/Read_more',
);
return true;
}
/**
* Check whether there are related articles that can be displayed,
* the ReadMore feature is disabled, and the beta feature is
* enabled by the user. Return true if BetaFeatures is not installed.
*
* @param mixed|null $relatedPages
* @param User $user
* @return bool
* @throws \ConfigException
*/
private static function isAbleToShowRelatedPages( $relatedPages, User $user ) {
$config = ConfigFactory::getDefaultInstance()->makeConfig( 'RelatedArticles' );
if ( !$relatedPages || $config->get( 'RelatedArticlesShowReadMore' ) ) {
return false;
}
if ( class_exists( 'BetaFeatures' ) ) {
return BetaFeatures::isFeatureEnabled( $user, 'read-more' );
}
return true;
}
}