/**
* Combines and compresses all inline scripts at the specified position.
* The combined contents is stored as a file in the assets folder so that
* the combination only happens when the contents change.
* @param int $position the position of the scripts
* @throws Exception if the combined script file can't be created
*/
private function combineInlineScripts($position)
{
if (!isset($this->scripts[$position])) {
return;
}
$scriptHash = md5(serialize(array_values($this->scripts[$position])));
$combinedScript = \Yii::app()->assetManager->basePath . '/' . $this->combinedScriptPrefix . '-' . $scriptHash . '.js';
// Create a compressed version of the scripts if it doesn't exist
if (!file_exists($combinedScript)) {
$combiner = new Combiner();
$contents = $combiner->compress(\YUI\Compressor::TYPE_JS, $this->scripts[$position]);
if (@file_put_contents($combinedScript, $contents) === false) {
throw new Exception('Failed to compress inline scripts: Could not write to file ' . $combinedScript);
}
}
// Replace the originals
$this->scripts[$position] = array($scriptHash => file_get_contents($combinedScript));
}
/**
* Class constructor
* @param string $filePrefix the prefix for combined files
* @param PathResolver $pathResolver path resolver
*/
public function __construct($filePrefix, PathResolver $pathResolver)
{
$this->filePrefix = $filePrefix;
$this->pathResolver = $pathResolver;
parent::__construct();
}
