Added theme support.

1 files changed, 204 insertions, 0 deletions

diff --git a/framework/Web/UI/TThemeManager.php b/framework/Web/UI/TThemeManager.php
new file mode 100644
index 00000000..8edae2e1
--- /dev/null
+++ b/framework/Web/UI/TThemeManager.php
@@ -0,0 +1,204 @@
+<?php

+

+class TThemeManager extends TComponent implements IModule

+{

+	const THEME_CACHE_PREFIX='prado:theme:';

+	const DEFAULT_THEME_PATH='themes';

+	/**

+	 * @var string module ID

+	 */

+	private $_id;

+	/**

+	 * @var boolean whether this module has been initialized

+	 */

+	private $_initialized=false;

+	/**

+	 * @var string the directory containing all themes

+	 */

+	private $_themePath=null;

+	/**

+	 * @var IApplication application

+	 */

+	private $_application;

+

+	/**

+	 * Initializes the module.

+	 * This method is required by IModule and is invoked by application.

+	 * @param IApplication application

+	 * @param TXmlElement module configuration

+	 */

+	public function init($application,$config)

+	{

+		$this->_application=$application;

+		if($this->_themePath===null)

+			$this->_themePath=dirname($application->getConfigurationFile()).'/'.self::DEFAULT_THEME_PATH;

+

+		$this->_initialized=true;

+	}

+

+	/**

+	 * @return string id of this module

+	 */

+	public function getID()

+	{

+		return $this->_id;

+	}

+

+	/**

+	 * @param string id of this module

+	 */

+	public function setID($value)

+	{

+		$this->_id=$value;

+	}

+

+	public function getTheme($name)

+	{

+		$themePath=realpath($this->_themePath.'/'.$name);

+		if($themePath===false || !is_dir($this->_themePath))

+			throw new TConfigurationException('thememanager_themepath_invalid',$themePath);

+		if(($cache=$this->_application->getCache())!==null)

+		{

+			$array=$cache->get(self::THEME_CACHE_PREFIX.$themePath);

+			if(is_array($array))

+			{

+				list($theme,$timestamp)=$array;

+				$cacheValid=true;

+				if(($dir=opendir($themePath))===false)

+					throw new TIOException('thememanager_themepath_invalid',$themePath);

+				while(($file=readdir($dir))!==false)

+				{

+					if(basename($file,'.skin')!==$file && filemtime($themePath.'/'.$file)>$timestamp)

+					{

+						$cacheValid=false;

+						break;

+					}

+				}

+				closedir($dir);

+				if($cacheValid)

+					return $theme;

+			}

+		}

+		// not cached, so we parse all skin files

+		$content='';

+		if(($dir=opendir($themePath))===false)

+			throw new TIOException('thememanager_themepath_invalid',$themePath);

+		while(($file=readdir($dir))!==false)

+		{

+			if(basename($file,'.skin')!==$file)

+				$content.=file_get_contents($themePath.'/'.$file);

+		}

+		closedir($dir);

+		$theme=new TTheme($content,$themePath);

+		if($cache!==null)

+			$cache->set(self::THEME_CACHE_PREFIX.$themePath,array($theme,time()));

+		return $theme;

+	}

+

+	public function getThemePath()

+	{

+		return $this->_themePath;

+	}

+

+	public function setThemePath($value)

+	{

+		if($this->_initialized)

+			throw new TInvalidOperationException('thememanager_themepath_unchangeable');

+		else

+			$this->_themePath=$value;

+	}

+}

+

+class TTheme extends TTemplate

+{

+	const ASSET_PATH='assets';

+	private $_themePath;

+	private $_themeFile;

+	private $_skins=array();

+

+	public function __construct($content,$themePath)

+	{

+		$this->_themePath=$themePath;

+		$theme=&$this->parse($content);

+		foreach($theme as $skin)

+		{

+			if($skin[0]!==-1)

+				throw new TConfigurationException('theme_control_nested',$skin[1]);

+			else if(!isset($skin[2]))  // a text string, ignored

+				continue;

+			$type=$skin[1];

+			$id=isset($skin[2]['skinid'])?$skin[2]['skinid']:0;

+			unset($skin[2]['skinid']);

+			if(isset($this->_skins[$type][$id]))

+				throw new TConfigurationException('theme_skinid_duplicated',$type,$id);

+			foreach($skin[2] as $name=>$value)

+			{

+				if(is_array($value) && $value[0]===0)

+					throw new TConfigurationException('theme_databind_unsupported',$type,$id,$name);

+			}

+			$this->_skins[$type][$id]=$skin[2];

+		}

+	}

+

+	public function applySkin($control)

+	{

+		$type=get_class($control);

+		if(($id=$control->getSkinID())==='')

+			$id=0;

+		if(isset($this->_skins[$type][$id]))

+		{

+			foreach($this->_skins[$type][$id] as $name=>$value)

+			{

+				if(is_array($value))

+					$value=$this->evaluateExpression($value);

+				if(strpos($name,'.')===false)	// is simple property or custom attribute

+				{

+					if($control->hasProperty($name))

+					{

+						if($control->canSetProperty($name))

+						{

+							$setter='set'.$name;

+							$control->$setter($value);

+						}

+						else

+							throw new TConfigurationException('theme_property_readonly',get_class($control),$name);

+					}

+					else if($control->getAllowCustomAttributes())

+						$control->getAttributes()->add($name,$value);

+					else

+						throw new TConfigurationException('theme_property_undefined',get_class($control),$name);

+				}

+				else	// complex property

+					$control->setSubProperty($name,$value);

+			}

+			return true;

+		}

+		else

+			return false;

+	}

+

+	public function publishFile($file)

+	{

+		return Prado::getApplication()->getService()->getAssetManager()->publishFile($file);

+	}

+

+	public function publishDirectory($directory)

+	{

+		return Prado::getApplication()->getService()->getAssetManager()->publishDirectory($directory);

+	}

+

+	public function getAsset($assetName)

+	{

+		$assetFile=$this->_themePath.'/'.self::ASSET_PATH.'/'.$assetName;

+		if(is_file($assetFile))

+			return $this->publishFile($assetFile);

+		else if(is_dir($assetFile))

+			return $this->publishDirectory($assetFile);

+		else

+			return '';

+	}

+

+}

+

+

+?>
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