git.sur5r.net Git - bacula/bacula/blob - gui/baculum/framework/Web/UI/ActiveControls/TActiveClientScript.php

   1 <?php
   2 /**
   3  * TActiveClientScript class file
   4  *
   5  * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
   6  * @link http://www.pradosoft.com/
   7  * @copyright Copyright &copy; 2005-2014 PradoSoft
   8  * @license http://www.pradosoft.com/license/
   9  * @package System.Web.UI.ActiveControls
  10  */
  11
  12 /**
  13  * TActiveClientScript class
  14  *
  15  * This is the active counterpart of the {@link TClientScript} class.
  16  *
  17  * TActiveClientScript has the ability to render itself on ajax
  18  * callbacks. This means that every variable or function declared in javascript
  19  * code will be available to the page.
  20  *
  21  * Beware that when rendered on normal (postback) or ajax callbacks, some
  22  * javascript code won't behave in the same way.
  23  * When rendered as part of a normal/postback response, scripts will execute instantly
  24  * where they are in the page and in a synchronous fashion.
  25  * Instead, when they are rendered as part of a callback response,
  26  * they will be executed when all DOM modifications are complete and any dynamic
  27  * script file includes are loaded, out-of-band and practically all blocks at once,
  28  * regardless of where they actually occour in the original template/markup code.
  29  * This can potentially hurt compatibility and graceful fallback.
  30  *
  31  * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
  32  * @package System.Web.UI.ActiveControls
  33  * @since 3.2
  34  */
  35
  36 class TActiveClientScript extends TClientScript
  37 {
  38         /**
  39          * Renders the custom script file.
  40          * @param THtmLWriter the renderer
  41          */
  42         protected function renderCustomScriptFile($writer)
  43         {
  44                 if(($scriptUrl = $this->getScriptUrl())!=='')
  45                 {
  46                         if($this->getPage()->getIsCallback())
  47                         {
  48                                 $cs = $this->getPage()->getClientScript();
  49                                 $uniqueid=$this->ClientID.'_custom';
  50                                 if(!$cs->isScriptFileRegistered($uniqueid))
  51                                         $cs->registerScriptFile($uniqueid, $scriptUrl);
  52                         } else {
  53                                 $writer->write("<script type=\"text/javascript\" src=\"$scriptUrl\"></script>\n");
  54                         }
  55                 }
  56         }
  57
  58         /**
  59          * Registers the body content as javascript.
  60          * @param THtmlWriter the renderer
  61          */
  62         protected function renderCustomScript($writer)
  63         {
  64                 if($this->getHasControls())
  65                 {
  66                         if($this->getPage()->getIsCallback())
  67                         {
  68                                 $extWriter= $this->getPage()->getResponse()->createHtmlWriter();
  69                                 $extWriter->write("/*<![CDATA[*/\n");
  70                                 $this->renderChildren($extWriter);
  71                                 $extWriter->write("\n/*]]>*/");
  72                                 $this->getPage()->getCallbackClient()->appendScriptBlock($extWriter);
  73                         } else {
  74                                 $writer->write("<script type=\"text/javascript\">\n/*<![CDATA[*/\n");
  75                                 $this->renderChildren($writer);
  76                                 $writer->write("\n/*]]>*/\n</script>\n");
  77                         }
  78                 }
  79         }
  80 }