103 lines
2.7 KiB
PHP
103 lines
2.7 KiB
PHP
<?php
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/**
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* Extension allows preloading of custom content into all edit forms
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* when creating an article
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*
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* Also adds a new tag <nopreload> which is used to mark sections which
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* shouldn't be preloaded, ever; has no effect on the rendering of pages
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*
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* @file
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* @ingroup Extensions
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* @author Rob Church <robchur@gmail.com>
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*/
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if( !defined( 'MEDIAWIKI' ) ) {
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echo( "This file is an extension to the MediaWiki software and cannot be used standalone.\n" );
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exit( 1 );
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}
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$wgExtensionCredits['other'][] = array(
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'path' => __FILE__,
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'name' => 'Preloader',
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'author' => 'Rob Church',
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'version' => '1.1.1',
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'url' => 'https://www.mediawiki.org/wiki/Extension:Preloader',
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'descriptionmsg' => 'preloader-desc',
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);
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$wgExtensionMessagesFiles['Preloader'] = dirname(__FILE__) . '/Preloader.i18n.php';
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/**
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* Sources of preloaded content for each namespace
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*/
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$wgPreloaderSource[ NS_MAIN ] = 'Template:Preload';
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$wgHooks['EditFormPreloadText'][] = 'Preloader::mainHook';
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$wgHooks['ParserFirstCallInit'][] = 'Preloader::setParserHook';
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class Preloader {
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public static function setParserHook( $parser ) {
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$parser->setHook( 'nopreload', array( __CLASS__, 'parserHook' ) );
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return true;
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}
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/** Hook function for the preloading */
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public static function mainHook( &$text, &$title ) {
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$src = self::preloadSource( $title->getNamespace() );
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if( $src ) {
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$stx = self::sourceText( $src );
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if( $stx )
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$text = $stx;
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}
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return true;
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}
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/** Hook function for the parser */
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public static function parserHook( $input, $args, &$parser ) {
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$output = $parser->parse( $input, $parser->getTitle(), $parser->getOptions(), false, false );
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return $output->getText();
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}
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/**
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* Determine what page should be used as the source of preloaded text
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* for a given namespace and return the title (in text form)
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*
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* @param $namespace Namespace to check for
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* @return mixed
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*/
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static function preloadSource( $namespace ) {
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global $wgPreloaderSource;
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if( isset( $wgPreloaderSource[ $namespace ] ) ) {
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return $wgPreloaderSource[ $namespace ];
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} else {
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return false;
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}
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}
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/**
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* Grab the current text of a given page if it exists
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*
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* @param $page Text form of the page title
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* @return mixed
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*/
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static function sourceText( $page ) {
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$title = Title::newFromText( $page );
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if( $title && $title->exists() ) {
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$revision = Revision::newFromTitle( $title );
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return self::transform( $revision->getText() );
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} else {
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return false;
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}
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}
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/**
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* Remove <nopreload> sections from the text and trim whitespace
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*
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* @param $text
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* @return string
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*/
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static function transform( $text ) {
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return trim( preg_replace( '/<nopreload>.*<\/nopreload>/s', '', $text ) );
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}
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}
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