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<?php
namespace SMW\MediaWiki;
use Revision;
use SMW\ParserData;
use User;
use WikiPage;
/**
* @license GNU GPL v2+
* @since 2.0
*
* @author mwjames
*/
class EditInfoProvider {
/**
* @var WikiPage
*/
private $wikiPage = null;
/**
* @var Revision
*/
private $revision = null;
/**
* @var User
*/
private $user = null;
/**
* @var ParserOutput
*/
private $parserOutput = null;
/**
* @since 1.9
*
* @param WikiPage $wikiPage
* @param Revision $revision
* @param User|null $user
*/
public function __construct( WikiPage $wikiPage, Revision $revision, User $user = null ) {
$this->wikiPage = $wikiPage;
$this->revision = $revision;
$this->user = $user;
}
/**
* @since 2.0
*
* @return ParserOutput|null
*/
public function getOutput() {
return $this->parserOutput;
}
/**
* @since 2.5
*
* @return SemanticData|null
*/
public function fetchSemanticData() {
$parserOutput = $this->fetchEditInfo()->getOutput();
if ( $parserOutput === null ) {
return null;
}
return $parserOutput->getExtensionData( ParserData::DATA_ID );
}
/**
* @since 2.0
*
* @return EditInfoProvider
*/
public function fetchEditInfo() {
$editInfo = $this->hasContentForEditMethod() ? $this->prepareContentForEdit() : $this->prepareTextForEdit();
$this->parserOutput = isset( $editInfo->output ) ? $editInfo->output : null;
return $this;
}
/**
* FIXME MW 1.21-
*/
protected function hasContentForEditMethod() {
return method_exists( 'WikiPage', 'prepareContentForEdit' );
}
private function prepareContentForEdit() {
if ( !$this->revision instanceof Revision ) {
return null;
}
$content = $this->revision->getContent();
return $this->wikiPage->prepareContentForEdit(
$content,
null,
$this->user,
$content->getContentHandler()->getDefaultFormat()
);
}
private function prepareTextForEdit() {
// keep backwards compatibility with MediaWiki 1.19 by deciding, if the
// newer Revision::getContent() method (MW 1.20 and above) or the bc
// method Revision::getRawText() is used.
if ( method_exists( $this->revision, 'getContent' ) ) {
$text = $this->revision->getContent( Revision::RAW );
} else {
// FIXME: Isn't needed after drop of support for MW 1.19
$text = $this->revision->getRawText();
}
return $this->wikiPage->prepareTextForEdit(
$text,
null,
$this->user
);
}
}
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