3 * TJavascriptLogger class file.
5 * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
6 * @link https://github.com/pradosoft/prado
7 * @copyright Copyright © 2005-2016 The PRADO Group
8 * @license https://github.com/pradosoft/prado/blob/master/COPYRIGHT
9 * @package System.Web.UI.WebControls
13 * TJavascriptLogger class.
15 * Provides logging for client-side javascript. Example: template code
16 * <code><com:TJavascriptLogger /></code>
18 * Client-side javascript code to log info, error, warn, debug
19 * <code>Logger.warn('A warning');
20 * Logger.info('something happend');
23 * To see the logger and console, press ALT-D (or CTRL-D on OS X).
24 * More information on the logger can be found at
25 * http://web.archive.org/web/20060512041505/gleepglop.com/javascripts/logger/
27 * @author Wei Zhuo<weizhuo[at]gmail[dot]com>
28 * @package System.Web.UI.WebControls
31 class TJavascriptLogger extends TWebControl
33 private static $_keyCodes = array(
34 '0'=>48, '1'=>49, '2'=>50, '3'=>51, '4'=>52, '5'=>53, '6'=>54, '7'=>55, '8'=>56, '9'=>57,
35 'a'=>65, 'b'=>66, 'c'=>67, 'd'=>68, 'e'=>69, 'f'=>70, 'g'=>71, 'h'=>72,
36 'i'=>73, 'j'=>74, 'k'=>75, 'l'=>76, 'm'=>77, 'n'=>78, 'o'=>79, 'p'=>80,
37 'q'=>81, 'r'=>82, 's'=>83, 't'=>84, 'u'=>85, 'v'=>86, 'w'=>87, 'x'=>88, 'y'=>89, 'z'=>90);
40 * @return string tag name of the panel
42 protected function getTagName()
48 * @param string keyboard key for toggling the console, default is J.
50 public function setToggleKey($value)
52 $this->setViewState('ToggleKey', $value, 'j');
56 * @return string keyboard key for toggling the console.
58 public function getToggleKey()
60 return $this->getViewState('ToggleKey', 'j');
64 * Registers the required logger javascript.
65 * @param TEventParameter event parameter
67 public function onPreRender($param)
69 $key = strtolower($this->getToggleKey());
70 $code = isset(self::$_keyCodes[$key]) ? self::$_keyCodes[$key] : 74;
71 $js = "var logConsole; jQuery(function() { logConsole = new LogConsole($code)}); ";
72 $cs = $this->getPage()->getClientScript();
73 $cs->registerBeginScript($this->getClientID(),$js);
74 $cs->registerPradoScript('logger');
78 * Register the required javascript libraries and
79 * display some general usage information.
80 * @param THtmlWriter the writer used for the rendering purpose
82 public function renderContents($writer)
84 $code = strtoupper($this->getToggleKey());
85 $info = '(<a href="http://web.archive.org/web/20060512041505/gleepglop.com/javascripts/logger/" target="_blank">more info</a>).';
86 $link = '<a href="javascript:if(logConsole)logConsole.toggle()">toggle the javascript log console.</a>';
87 $usage = 'Press ALT-'.$code.' (Or CTRL-'.$code.' on OS X) to';
88 $writer->write("{$usage} {$link} {$info}");