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<?php
/**
* TClientScript class file
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @link https://github.com/pradosoft/prado
* @copyright Copyright © 2005-2015 The PRADO Group
* @license https://github.com/pradosoft/prado/blob/master/COPYRIGHT
* @package System.Web.UI.WebControls
*/
/**
* TClientScript class
*
* Allows importing of Prado Client Scripts from template via the
* {@link setPradoScripts PradoScripts} property. Multiple Prado
* client-scripts can be specified using comma delimited string of the
* javascript library to include on the page. For example,
*
* <code>
* <com:TClientScript PradoScripts="effects, rico" />
* </code>
*
* Custom javascript files can be register using the {@link setScriptUrl ScriptUrl}
* property.
* <code>
* <com:TClientScript ScriptUrl=<%~ test.js %> />
* </code>
*
* Contents within TClientScript will be treated as javascript code and will be
* rendered in place.
*
* Since Prado 3.2 the property {@link setFlushScriptFiles FlushScriptFiles} controls
* whether Prado will flush the script files defined in the page before rendering the
* TClientScript contents.
* If you're not using any external functions in your TClientScript block, you should
* set the {@link setFlushScriptFiles FlushScriptFiles} property to false, so Prado
* can postpone the loading of all the referenced script files further down the page
* generation cycle.
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @package System.Web.UI.WebControls
* @since 3.0
*/
class TClientScript extends TControl
{
/**
* @return string comma delimited list of javascript libraries to included
* on the page.
*/
public function getPradoScripts()
{
return $this->getViewState('PradoScripts', '');
}
/**
* Include javascript library to the current page. The current supported
* libraries are: "prado", "effects", "ajax", "validator", "logger",
* "datepicker", "colorpicker". Library dependencies are automatically resolved.
*
* @param string comma delimited list of javascript libraries to include.
*/
public function setPradoScripts($value)
{
$this->setViewState('PradoScripts', $value, '');
}
/**
* @return string custom javascript file url.
*/
public function getScriptUrl()
{
return $this->getViewState('ScriptUrl', '');
}
/**
* @param string custom javascript file url.
*/
public function setScriptUrl($value)
{
$this->setViewState('ScriptUrl', $value, '');
}
/**
* @return bool whether to flush script files using TClientScriptManager::flushScriptFiles() before rendering the script block
*/
public function getFlushScriptFiles()
{
return TPropertyValue::ensureBoolean($this->getViewState('FlushScriptFiles', true));
}
/**
* @param bool whether to flush script files using TClientScriptManager::flushScriptFiles() before rendering the script block
*/
public function setFlushScriptFiles($value)
{
$this->setViewState('FlushScriptFiles', TPropertyValue::ensureBoolean($value));
}
/**
* Calls the client script manager to add each of the requested client
* script libraries.
* @param mixed event parameter
*/
public function onPreRender($param)
{
parent::onPreRender($param);
$scripts = preg_split('/,|\s+/', $this->getPradoScripts());
$cs = $this->getPage()->getClientScript();
foreach($scripts as $script)
{
if(($script = trim($script))!=='')
$cs->registerPradoScript($script);
}
}
/**
* Renders the body content as javascript block.
* Overrides parent implementation, parent renderChildren method is called during
* {@link registerCustomScript}.
* @param THtmlWriter the renderer
*/
public function render($writer)
{
if ($this->getFlushScriptFiles())
$this->getPage()->getClientScript()->flushScriptFiles($writer, $this);
$this->renderCustomScriptFile($writer);
$this->renderCustomScript($writer);
}
/**
* Renders the custom script file.
* @param THtmLWriter the renderer
*/
protected function renderCustomScriptFile($writer)
{
if(($scriptUrl = $this->getScriptUrl())!=='')
$writer->write("<script type=\"text/javascript\" src=\"$scriptUrl\"></script>\n");
}
/**
* Registers the body content as javascript.
* @param THtmlWriter the renderer
*/
protected function renderCustomScript($writer)
{
if($this->getHasControls())
{
$writer->write("<script type=\"text/javascript\">\n/*<![CDATA[*/\n");
$this->renderChildren($writer);
$writer->write("\n/*]]>*/\n</script>\n");
}
}
}
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