*/
class Assets {
private $assetsFolder;
private $cacheFolder;
private $css = array();
private $javascript = array();
/**
* Contains the CI instance.
*
* @var object
*/
private $CI;
/**
* Constructor.
*/
public function __construct($config = array()) {
log_message('debug', "Asset Class Initialized");
// set the super object to a local variable
$this->CI =& get_instance();
// set the asset path
$this->assetsPath = ($config['assets_folder'] != '') ? $config['assets_folder'] : 'assets';
if (!is_dir($this->assetsPath)) {
log_message('error', "Asset folder does not exist");
}
// set the cache path
$this->cachePath = ($config['cache_folder'] != '') ? $config['cache_folder'] : 'assets/cache';
if (!is_dir($this->cachePath) || !is_really_writable($this->cachePath)) {
$this->cacheEnable = false;
}
}
/**
* Loads an asset.
*
* @param string $type
* @param string $filename
* @param mixed $attributes
* @return string
*/
public function load($type, $filename, $attributes = '') {
// validate type parameter
$type = strtolower($type);
if (!in_array($type, array('image', 'images', 'icon', 'icons', 'css', 'js'))) {
log_message('error', "Invalid asset type '" . $type . "' used.");
}
if (in_array($type, array('image', 'icon'))) {
$type .= 's';
}
// build the path strings
$filepath = $this->assetsPath . $type . '/' . $filename;
if (!file_exists($filepath)) {
log_message('error', "Unable to load requested asset: $filename");
return '';
}
switch ($type) {
case 'images':
case 'icons':
if (!isset($attributes['alt'])) {
$attributes['alt'] = '';
}
$output = ' . $filepath . ')
parseAttributes($attributes) . ' />';
break;
case 'css':
$output = 'parseAttributes($attributes) . " />\n";
break;
case 'js':
// $this->javascript[] = array('filepath' => $filepath, 'attributes' => $attributes);
// $code = file_get_contents(FCPATH . $this->assetsFolder . $type . '/' . $filename);
// if ($this->CI->config->item('enable_jsmin') == true) {
// $this->CI->load->library('jsmin');
// $code = $this->CI->jsmin->minify($code);
// }
// $httpHeaders = '<' . '?php header("Content-type: text/javascript; charset: UTF-8");?' . '>';
// if ($this->CI->config->item('compress_output') == true) {
// $httpHeaders .= '';
// }
// $code = $httpHeaders . "\n" . $code;
// file_put_contents(FCPATH . $this->cacheFolder . $type . '_' . md5($code) . '.php', $code);
$output = '';
$output .= "\n";
break;
default:
$output = '';
}
return $output;
}
/**
* Generates an URL of the given asset.
*
* @param string $type
* @param string $filename
* @return string
*/
public function url($type, $filename) {
$type = strtolower($type);
if (!in_array($type, array('image', 'images', 'icon', 'icons', 'css', 'js'))) {
log_message('error', "'" . $type . "' is not a valid asset type");
return;
}
if (in_array($type, array('image', 'icon'))) {
$type .= 's';
}
return $this->CI->config->slash_item('base_url') . $this->assetsPath . $type . '/' . $filename;
}
/**
* Parses out the attributes.
*
* @param mixed $attributes
* @return string
*/
private function parseAttributes($attributes) {
if (is_string($attributes)) {
return ($attributes != '') ? ' '.$attributes : '';
}
$output = '';
foreach ($attributes as $key => $value) {
$output .= ' ' . $key . '="' . $value . '"';
}
return $output;
}
}
/* End of file Assets.php */
/* Location: ./application/libraries/Assets.php */