Implement a simple asset library and use it

2011-09-02 04:34:16 +02:00
parent 20a1ea85b3
commit 554edb1f0c
8 changed files with 472 additions and 15 deletions
--- a/application/libraries/Asset.php
+++ b/application/libraries/Asset.php
@@ -0,0 +1,101 @@
+<?php defined('BASEPATH') || exit('No direct script access allowed');
+
+/**
+ *
+ * @author Eike Foken <kontakt@eikefoken.de>
+ */
+class Asset {
+
+	private $assetsFolder;
+	private $cacheFolder;
+
+	private $CI;
+
+	/**
+	 * Constructor.
+	 */
+	public function __construct() {
+		$this->CI =& get_instance();
+		$this->CI->load->config('assets');
+
+		$this->assetsFolder = $this->CI->config->item('assets_folder');
+		$this->cacheFolder = $this->CI->config->item('cache_folder');
+
+		log_message('debug', "Asset Class Initialized");
+	}
+
+	/**
+	 * Loads an asset.
+	 *
+	 * @param string $type
+	 * @param string $filename
+	 */
+	public function load($type, $filename, $attributes = array()) {
+		// validate type parameter
+		if (!empty($type)) {
+			$type = strtolower($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'))) {
+				$type .= 's';
+			}
+		}
+
+		// convert filename to array
+		if (!empty($filename)) {
+			$link = $this->CI->config->slash_item('base_url') . $this->assetsFolder . $type . '/' . $filename;
+			$path = FCPATH . $this->assetsFolder . $type . '/' . $filename;
+		}
+
+		switch ($type) {
+		case 'images':
+		case 'icons':
+			if (!isset($attributes['alt'])) {
+				$attributes['alt'] = '';
+			}
+
+			$output = '<img src="' . $link . '"';
+
+			foreach ($attributes as $key => $value) {
+				$output .= " $key=\"$value\"";
+			}
+
+			$output .= ' />';
+			break;
+		case 'css':
+			$output = '<link href="' . $link . '" rel="stylesheet" type="text/css"';
+			foreach ($attributes as $key => $value) {
+				$output .= " $key=\"$value\"";
+			}
+			$output .= " />\n";
+			break;
+		case 'js':
+// 			$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) . EXT, $code);
+
+			$output = '<script src="' . $link . '" language="javascript" type="text/javascript"></script>';
+			$output .= "\n";
+			break;
+		default:
+			$output = '';
+		}
+
+		return $output;
+	}
+}
+
+/* End of file Assets.php */
+/* Location: ./application/libraries/Assets.php */