ViewFilter.php

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<?php
namespace Elgg\Amd;

class ViewFilter {
    private function getAmdName($name) {
        $pieces = explode("/", $name); // [js, elgg, module.js]
        if (count($pieces) <= 1 || $pieces[0] != 'js') {
            return '';
        }
    
        array_shift($pieces); // [elgg, module.js]
        $basename = basename(array_pop($pieces), ".js"); // module
        array_push($pieces, $basename); // [elgg, module]
        
        return implode("/", $pieces); // elgg/module
    }
    
    public function filter($viewName, $content) {
        $amdName = $this->getAmdName($viewName);
        
        if (!empty($amdName)) {
            $content = preg_replace('/^define\(([^\'"])/m', "define(\"$amdName\", \$1", $content, 1);
        }
        
        return $content;
    }
}