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path: root/framework/Web/UI/WebControls/TClientScript.php
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<?php
/**
 * TClientScript class file
 *
 * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
 * @link http://www.pradosoft.com/
 * @copyright Copyright &copy; 2005 PradoSoft
 * @license http://www.pradosoft.com/license/
 * @version $Id$
 * @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.
 *
 * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
 * @version $Id$
 * @package System.Web.UI.WebControls
 * @since 3.0
 */
class TClientScript extends TControl
{
	const SCRIPT_LOADER = 'Web/Javascripts/clientscripts.php';

	/**
	 * @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, '');
	}

	/**
	 * @param string custom javascript library directory.
	 */
	public function setPackagePath($value)
	{
		$this->setViewState('PackagePath', $value);
	}

	/**
	 * @return string custom javascript library directory.
	 */
	public function getPackagePath()
	{
		return $this->getViewState('PackagePath');
	}

	/**
	 * @param string load specific packages from the javascript library in the PackagePath, comma delimited package names
	 */
	public function setPackageScripts($value)
	{
		$this->setViewState('PackageScripts', $value,'');
	}

	/**
	 * @return string comma delimited list of javascript library packages to load.
	 */
	public function getPackageScripts()
	{
		return $this->getViewState('PackageScripts','');
	}

	/**
	 * 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)
	{
		$this->renderCustomScriptFile($writer);
		$this->renderPackageScriptFile($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");
		}
	}

	protected function renderPackageScriptFile($writer)
	{
		$baseUrl = $this->publishScriptLoader();
		$scripts = split('/\s*[, ]+\s*/', $this->getPackageScripts());
		$url = $baseUrl . '?js=' . implode(',', $scripts);
		if($this->getApplication()->getMode()===TApplicationMode::Debug)
			$url.='&amp;mode=debug';
		$writer->write("<script type=\"text/javascript\" src=\"{$url}\"></script>\n");
	}

	protected function publishScriptLoader()
	{
		list($path, $url) = $this->getPublishedPackagePath();
		if(is_dir($path))
		{
			$scriptLoader = Prado::getFrameworkPath().'/'.self::SCRIPT_LOADER;
			$scriptLoaderFile = basename($scriptLoader);
			$dest = $path.'/'.$scriptLoaderFile;
			if(!is_file($dest))
				copy($scriptLoader,$dest);
			return $url.'/'.$scriptLoaderFile;
		}
		else
			throw new TConfigurationException('clientscript_invalid_package_path',
				$this->getPackagePath(), $this->getUniqueID());
	}

	protected function getPublishedPackagePath()
	{
		$assets = $this->getApplication()->getAssetManager();
		//assumes dot path first
		$dir = Prado::getPathOfNameSpace($packageDir);
		if(!is_null($dir))
		{
			$url = $assets->publishFilePath($dir); //show throw an excemption if invalid
			return array($dir, $url);
		}
		$url = $this->getPackagePath();
		$packageDir = str_replace($assets->getBaseUrl(), '', $url);
		return array($assets->getBasePath().$packageDir,$url);
	}
}

?>