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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
namespace MediaWiki\EditPage;
use MediaWiki\Cache\LinkBatchFactory;
use MediaWiki\Context\IContextSource;
use MediaWiki\Html\Html;
use MediaWiki\Linker\LinkRenderer;
use MediaWiki\Page\PageIdentity;
use MediaWiki\Page\PageReference;
use MediaWiki\Permissions\RestrictionStore;
use MediaWiki\Title\Title;
/**
* Handles formatting for the "templates used on this page"
* lists. Formerly known as Linker::formatTemplates()
*
* @since 1.28
*/
class TemplatesOnThisPageFormatter {
/**
* @var IContextSource
*/
private $context;
/**
* @var LinkRenderer
*/
private $linkRenderer;
/**
* @var LinkBatchFactory
*/
private $linkBatchFactory;
/**
* @var RestrictionStore
*/
private $restrictionStore;
/**
* @param IContextSource $context
* @param LinkRenderer $linkRenderer
* @param LinkBatchFactory $linkBatchFactory
* @param RestrictionStore $restrictionStore
*/
public function __construct(
IContextSource $context,
LinkRenderer $linkRenderer,
LinkBatchFactory $linkBatchFactory,
RestrictionStore $restrictionStore
) {
$this->context = $context;
$this->linkRenderer = $linkRenderer;
$this->linkBatchFactory = $linkBatchFactory;
$this->restrictionStore = $restrictionStore;
}
/**
* Make an HTML list of templates, and then add a "More..." link at
* the bottom. If $more is null, do not add a "More..." link. If $more
* is a PageReference, make a link to that page and use it. If $more is a string,
* directly paste it in as the link (escaping needs to be done manually).
*
* @param PageIdentity[] $templates
* @param string|false $type 'preview' if a preview, 'section' if a section edit, false if neither
* @param PageReference|string|null $more An escaped link for "More..." of the templates
* @return string HTML output
*/
public function format( array $templates, $type = false, $more = null ) {
if ( !$templates ) {
// No templates
return '';
}
# Do a batch existence check
$batch = $this->linkBatchFactory->newLinkBatch( $templates );
$batch->setCaller( __METHOD__ );
$batch->execute();
# Construct the HTML
$outText = Html::openElement( 'div', [ 'class' => 'mw-templatesUsedExplanation' ] );
$count = count( $templates );
if ( $type === 'preview' ) {
$outText .= $this->context->msg( 'templatesusedpreview' )->numParams( $count )
->parseAsBlock();
} elseif ( $type === 'section' ) {
$outText .= $this->context->msg( 'templatesusedsection' )->numParams( $count )
->parseAsBlock();
} else {
$outText .= $this->context->msg( 'templatesused' )->numParams( $count )
->parseAsBlock();
}
$outText .= Html::closeElement( 'div' ) . Html::openElement( 'ul' ) . "\n";
usort( $templates, [ Title::class, 'compare' ] );
foreach ( $templates as $template ) {
$outText .= $this->formatTemplate( $template );
}
if ( $more instanceof PageReference ) {
$outText .= Html::rawElement( 'li', [],
$this->linkRenderer->makeLink(
$more,
$this->context->msg( 'moredotdotdot' )->text()
)
);
} elseif ( $more ) {
// Documented as should already be escaped
$outText .= Html::rawElement( 'li', [], $more );
}
$outText .= Html::closeElement( 'ul' );
return $outText;
}
/**
* Builds a list item for an individual template
*
* The output of this is repeated for live-preview in resources/src/mediawiki.page.preview.js
*
* @param PageIdentity $target
* @return string
*/
private function formatTemplate( PageIdentity $target ) {
if ( !$target->canExist() ) {
return Html::rawElement( 'li', [], $this->linkRenderer->makeLink( $target ) );
}
$protected = $this->getRestrictionsText(
$this->restrictionStore->getRestrictions( $target, 'edit' )
);
$editLink = $this->buildEditLink( $target );
return Html::rawElement( 'li', [], $this->linkRenderer->makeLink( $target )
. $this->context->msg( 'word-separator' )->escaped()
. $this->context->msg( 'parentheses' )->rawParams( $editLink )->escaped()
. $this->context->msg( 'word-separator' )->escaped()
. $protected
);
}
/**
* If the page is protected, get the relevant text
* for those restrictions
*
* @param array $restrictions
* @return string HTML
*/
private function getRestrictionsText( array $restrictions ) {
$protected = '';
if ( !$restrictions ) {
return $protected;
}
// Check backwards-compatible messages
$msg = null;
if ( $restrictions === [ 'sysop' ] ) {
$msg = $this->context->msg( 'template-protected' );
} elseif ( $restrictions === [ 'autoconfirmed' ] ) {
$msg = $this->context->msg( 'template-semiprotected' );
}
if ( $msg && !$msg->isDisabled() ) {
$protected = $msg->parse();
} else {
// Construct the message from restriction-level-*
// e.g. restriction-level-sysop, restriction-level-autoconfirmed
$msgs = [];
foreach ( $restrictions as $r ) {
$msgs[] = $this->context->msg( "restriction-level-$r" )->parse();
}
$protected = $this->context->msg( 'parentheses' )
->rawParams( $this->context->getLanguage()->commaList( $msgs ) )->escaped();
}
return $protected;
}
/**
* Return a link to the edit page, with the text
* saying "view source" if the user can't edit the page
*
* @param PageIdentity $page
* @return string HTML
*/
private function buildEditLink( PageIdentity $page ) {
if ( $this->context->getAuthority()->probablyCan( 'edit', $page ) ) {
$linkMsg = 'editlink';
} else {
$linkMsg = 'viewsourcelink';
}
return $this->linkRenderer->makeLink(
$page,
$this->context->msg( $linkMsg )->text(),
[],
[ 'action' => 'edit' ]
);
}
}