3 * This class simply puts HTML code / JavaScript code or CSS code out to the
6 * @author Roland Haeder <webmaster@ship-simu.org>
8 * @copyright Copyright (c) 2007, 2008 Roland Haeder, this is free software
9 * @license GNU GPL 3.0 or any newer version
10 * @link http://www.ship-simu.org
12 * This program is free software: you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation, either version 3 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 class WebOutput extends BaseFrameworkSystem implements OutputStreamer, Registerable {
27 * The instance for the singleton design pattern
29 private static $webInstance = null;
32 * Protected constructor
36 protected function __construct () {
37 // Call parent constructor
38 parent::__construct(__CLASS__);
42 * Create a new web output system and set the content type
44 * @param $contentType A valid content-type
45 * @return $debugInstance An instance of this middleware class
47 public final static function createWebOutput ($contentType) {
48 // Is there no instance?
49 if (is_null(self::$webInstance)) {
50 // Cast the content-type to string and trim it
51 $contentType = (string) $contentType;
52 $contentType = trim($contentType);
54 // Set the content type
55 if (!empty($contentType)) {
56 @header(sprintf("Content-type: %s",
61 // Get a new instance and set it
62 self::$webInstance = new WebOutput();
66 return self::$webInstance;
70 * Assigns a variable for output
72 * @param $var The variable we shall assign
73 * @param $value The value to store in the variable
76 public function assignVariable($var, $value) {
77 // Stub message because we don't have it here
78 trigger_error(__METHOD__.": Stub!");
86 public final function output ($outStream=false) {