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<?php
/**
* JSON Content Model
*
* @file
*
* @author Ori Livneh <ori@wikimedia.org>
* @author Kunal Mehta <legoktm@gmail.com>
*/
/**
* Represents the content of a JSON content.
* @since 1.24
*/
class JsonContent extends TextContent {
public function __construct( $text, $modelId = CONTENT_MODEL_JSON ) {
parent::__construct( $text, $modelId );
}
/**
* Decodes the JSON into a PHP associative array.
* @return array
*/
public function getJsonData() {
return FormatJson::decode( $this->getNativeData(), true );
}
/**
* @return bool Whether content is valid JSON.
*/
public function isValid() {
return $this->getJsonData() !== null;
}
/**
* Pretty-print JSON
*
* @return bool|null|string
*/
public function beautifyJSON() {
$decoded = FormatJson::decode( $this->getNativeData(), true );
if ( !is_array( $decoded ) ) {
return null;
}
return FormatJson::encode( $decoded, true );
}
/**
* Beautifies JSON prior to save.
* @param Title $title Title
* @param User $user User
* @param ParserOptions $popts
* @return JsonContent
*/
public function preSaveTransform( Title $title, User $user, ParserOptions $popts ) {
return new static( $this->beautifyJSON() );
}
/**
* Set the HTML and add the appropriate styles
*
*
* @param Title $title
* @param int $revId
* @param ParserOptions $options
* @param bool $generateHtml
* @param ParserOutput $output
*/
protected function fillParserOutput( Title $title, $revId,
ParserOptions $options, $generateHtml, ParserOutput &$output
) {
if ( $generateHtml ) {
$output->setText( $this->objectTable( $this->getJsonData() ) );
$output->addModuleStyles( 'mediawiki.content.json' );
} else {
$output->setText( '' );
}
}
/**
* Constructs an HTML representation of a JSON object.
* @param array $mapping
* @return string HTML
*/
protected function objectTable( $mapping ) {
$rows = array();
foreach ( $mapping as $key => $val ) {
$rows[] = $this->objectRow( $key, $val );
}
return Xml::tags( 'table', array( 'class' => 'mw-json' ),
Xml::tags( 'tbody', array(), join( "\n", $rows ) )
);
}
/**
* Constructs HTML representation of a single key-value pair.
* @param string $key
* @param mixed $val
* @return string HTML.
*/
protected function objectRow( $key, $val ) {
$th = Xml::elementClean( 'th', array(), $key );
if ( is_array( $val ) ) {
$td = Xml::tags( 'td', array(), self::objectTable( $val ) );
} else {
if ( is_string( $val ) ) {
$val = '"' . $val . '"';
} else {
$val = FormatJson::encode( $val );
}
$td = Xml::elementClean( 'td', array( 'class' => 'value' ), $val );
}
return Xml::tags( 'tr', array(), $th . $td );
}
}
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