SkinFallbackTemplate.php

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<?php

class SkinFallbackTemplate extends BaseTemplate {
    private function findInstalledSkins() {
        $styleDirectory = $this->config->get( 'StyleDirectory' );
        // Get all subdirectories which might contains skins
        $possibleSkins = scandir( $styleDirectory );
        $possibleSkins = array_filter( $possibleSkins, function ( $maybeDir ) use ( $styleDirectory ) {
            return $maybeDir !== '.' && $maybeDir !== '..' && is_dir( "$styleDirectory/$maybeDir" );
        } );

        // Filter out skins that aren't installed
        $possibleSkins = array_filter( $possibleSkins, function ( $skinDir ) use ( $styleDirectory ) {
            return
                is_file( "$styleDirectory/$skinDir/skin.json" )
                || is_file( "$styleDirectory/$skinDir/$skinDir.php" );
        } );

        return $possibleSkins;
    }

    private function buildHelpfulInformationMessage() {
        $defaultSkin = $this->config->get( 'DefaultSkin' );
        $installedSkins = $this->findInstalledSkins();
        $enabledSkins = SkinFactory::getDefaultInstance()->getSkinNames();
        $enabledSkins = array_change_key_case( $enabledSkins, CASE_LOWER );

        if ( $installedSkins ) {
            $skinsInstalledText = [];
            $skinsInstalledSnippet = [];

            foreach ( $installedSkins as $skin ) {
                $normalizedKey = strtolower( $skin );
                $isEnabled = array_key_exists( $normalizedKey, $enabledSkins );
                if ( $isEnabled ) {
                    $skinsInstalledText[] = $this->getMsg( 'default-skin-not-found-row-enabled' )
                        ->params( $normalizedKey, $skin )->plain();
                } else {
                    $skinsInstalledText[] = $this->getMsg( 'default-skin-not-found-row-disabled' )
                        ->params( $normalizedKey, $skin )->plain();
                    $skinsInstalledSnippet[] = $this->getSnippetForSkin( $skin );
                }
            }

            return $this->getMsg( 'default-skin-not-found' )->params(
                $defaultSkin,
                implode( "\n", $skinsInstalledText ),
                implode( "\n", $skinsInstalledSnippet ) )->numParams(
                    count( $skinsInstalledText ),
                    count( $skinsInstalledSnippet )
            )->parseAsBlock();
        } else {
            return $this->getMsg( 'default-skin-not-found-no-skins' )->params(
                $defaultSkin
            )->parseAsBlock();
        }
    }

    private function getSnippetForSkin( $skin ) {
        global $IP;
        if ( file_exists( "$IP/skins/$skin/skin.json" ) ) {
            return "wfLoadSkin( '$skin' );";
        } else {
            return "require_once \"\$IP/skins/$skin/$skin.php\";";
        }
    }

    public function execute() {
        $this->html( 'headelement' ) ?>

        <div class="warningbox">
            <?php echo $this->buildHelpfulInformationMessage() ?>
        </div>

        <form action="<?php $this->text( 'wgScript' ) ?>">
            <input type="hidden" name="title" value="<?php $this->text( 'searchtitle' ) ?>" />
            <h3><label for="searchInput"><?php $this->msg( 'search' ) ?></label></h3>
            <?php echo $this->makeSearchInput( [ "id" => "searchInput" ] ) ?>
            <?php echo $this->makeSearchButton( 'go' ) ?>
        </form>

        <div class="mw-body" role="main">
            <h1 class="firstHeading"><?php $this->html( 'title' ) ?></h1>

            <div class="mw-body-content">
                <?php $this->html( 'bodytext' ) ?>
                <?php $this->html( 'catlinks' ) ?>
            </div>
        </div>

        <?php $this->printTrail() ?>
        </body></html>

    <?php
    }
}