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<?php
namespace Maps\MediaWiki\Content;
use FormatJson;
use Maps\Presentation\GeoJsonMapPageUi;
use Maps\Presentation\OutputFacade;
use ParserOptions;
use ParserOutput;
use Status;
use Title;
class GeoJsonContent extends \JsonContent {
public const CONTENT_MODEL_ID = 'GeoJSON';
public static function newEmptyContentString(): string {
$text = '{"type": "FeatureCollection", "features": []}';
return FormatJson::encode( FormatJson::parse( $text )->getValue(), true, FormatJson::UTF8_OK );
}
public function __construct( string $text, string $modelId = self::CONTENT_MODEL_ID ) {
parent::__construct(
$text,
$modelId
);
}
public function getData(): Status {
$status = parent::getData();
if ( $status->isGood() && !$this->isGeoJson( $status->getValue() ) ) {
return Status::newFatal( 'Invalid GeoJson' );
}
return $status;
}
private function isGeoJson( $json ): bool {
return property_exists( $json, 'type' )
&& $json->type === 'FeatureCollection'
&& property_exists( $json, 'features' )
&& is_array( $json->features );
}
protected function fillParserOutput( Title $title, $revId, ParserOptions $options,
$generateHtml, ParserOutput &$output ) {
if ( $generateHtml && $this->isValid() ) {
( GeoJsonMapPageUi::forExistingPage( $this->beautifyJSON() ) )->addToOutput( OutputFacade::newFromParserOutput( $output ) );
} else {
$output->setText( '' );
}
}
}
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