* @version 0.0.0
* @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 Core Developer Team
* @license GNU GPL 3.0 or any newer version
* @link http://www.ship-simu.org
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
class MenuTemplateEngine extends BaseTemplateEngine implements CompileableTemplate {
/**
* Main nodes in the XML tree ('menu' is ignored)
*/
private $mainNodes = array(
'header',
'entries',
'footer',
);
/**
* Sub nodes in the XML tree
*/
private $subNodes = array(
'title',
'entry',
'anchor',
'design',
'text',
'advert',
);
/**
* Menu instance
*/
private $menuInstance = null;
/**
* Current main node
*/
private $currMainNode = '';
/**
* Protected constructor
*
* @return void
*/
protected function __construct () {
// Call parent constructor
parent::__construct(__CLASS__);
}
/**
* Creates an instance of the class TemplateEngine and prepares it for usage
*
* @param $appInstance A manageable application
* @param $menuInstance A RenderableMenu instance
* @return $tplInstance An instance of TemplateEngine
* @throws BasePathIsEmptyException If the provided $templateBasePath is empty
* @throws InvalidBasePathStringException If $templateBasePath is no string
* @throws BasePathIsNoDirectoryException If $templateBasePath is no
* directory or not found
* @throws BasePathReadProtectedException If $templateBasePath is
* read-protected
*/
public final static function createMenuTemplateEngine (ManageableApplication $appInstance, RenderableMenu $menuInstance) {
// Get a new instance
$tplInstance = new MenuTemplateEngine();
// Get language and file I/O instances from application
$langInstance = $appInstance->getLanguageInstance();
$ioInstance = $appInstance->getFileIoInstance();
// Determine base path
$templateBasePath = $tplInstance->getConfigInstance()->getConfigEntry('application_base_path') . $appInstance->getRequestInstance()->getRequestElement('app') . '/';
// Is the base path valid?
if (empty($templateBasePath)) {
// Base path is empty
throw new BasePathIsEmptyException($tplInstance, self::EXCEPTION_UNEXPECTED_EMPTY_STRING);
} elseif (!is_string($templateBasePath)) {
// Is not a string
throw new InvalidBasePathStringException(array($tplInstance, $templateBasePath), self::EXCEPTION_INVALID_STRING);
} elseif (!is_dir($templateBasePath)) {
// Is not a path
throw new BasePathIsNoDirectoryException(array($tplInstance, $templateBasePath), self::EXCEPTION_INVALID_PATH_NAME);
} elseif (!is_readable($templateBasePath)) {
// Is not readable
throw new BasePathReadProtectedException(array($tplInstance, $templateBasePath), self::EXCEPTION_READ_PROTECED_PATH);
}
// Get configuration instance
$configInstance = FrameworkConfiguration::getInstance();
// Set the base path
$tplInstance->setTemplateBasePath($templateBasePath);
// Set the language and IO instances
$tplInstance->setLanguageInstance($langInstance);
$tplInstance->setFileIoInstance($ioInstance);
// Set template extensions
$tplInstance->setRawTemplateExtension($configInstance->getConfigEntry('raw_template_extension'));
$tplInstance->setCodeTemplateExtension($configInstance->getConfigEntry('menu_template_extension'));
// Absolute output path for compiled templates
$tplInstance->setCompileOutputPath($configInstance->getConfigEntry('base_path') . $configInstance->getConfigEntry('compile_output_path'));
// Set the menu instance
$tplInstance->setMenuInstance($menuInstance);
// Return the prepared instance
return $tplInstance;
}
/**
* Load a specified menu template into the engine
*
* @param $template The menu template we shall load which is
* located in 'menu' by default
* @return void
*/
public function loadMenuTemplate ($template) {
// Set template type
$this->setTemplateType($this->getConfigInstance()->getConfigEntry('menu_template_type'));
// Load the special template
$this->loadTemplate($template);
}
/**
* Getter for current main node
*
* @return $currMainNode Current main node
*/
public final function getCurrMainNode () {
return $this->currMainNode;
}
/**
* Getter for main node array
*
* @return $mainNodes Array with valid main node names
*/
public final function getMainNodes () {
return $this->mainNodes;
}
/**
* Getter for sub node array
*
* @return $subNodes Array with valid sub node names
*/
public final function getSubNodes () {
return $this->subNodes;
}
/**
* Handles the start element of an XML resource
*
* @param $resource XML parser resource (currently ignored)
* @param $element The element we shall handle
* @param $attributes All attributes
* @return void
* @throws InvalidXmlNodeException If an unknown/invalid XML node name was found
*/
public function startElement ($resource, $element, array $attributes) {
// Initial method name which will never be called...
$methodName = 'initMenu';
// Make the element name lower-case
$element = strtolower($element);
// Is the element a main node?
//* DEBUG: */ echo "START: >".$element."<
\n";
if (in_array($element, $this->getMainNodes())) {
// Okay, main node found!
$methodName = 'startMenu' . $this->convertToClassName($element);
// Set it
$this->currMainNode = $element;
} elseif (in_array($element, $this->getSubNodes())) {
// Sub node found
$methodName = 'setMenuProperty' . $this->convertToClassName($element);
} elseif ($element != 'menu') {
// Invalid node name found
throw new InvalidXmlNodeException(array($this, $element, $attributes), XmlParser::EXCEPTION_XML_NODE_UNKNOWN);
}
// Call method
//* DEBUG: */ echo "call: ".$methodName."
\n";
call_user_func_array(array($this, $methodName), $attributes);
}
/**
* Ends the main or sub node by sending out the gathered data
*
* @param $resource An XML resource pointer (currently ignored)
* @param $nodeName Name of the node we want to finish
* @return void
* @throws XmlNodeMismatchException If current main node mismatches the closing one
*/
public function endElement ($resource, $nodeName) {
// Make all lower-case
$nodeName = strtolower($nodeName);
// Does this match with current main node?
//* DEBUG: */ echo "END: >".$nodeName."<
\n";
if (($nodeName != $this->getCurrMainNode()) && (in_array($nodeName, $this->getMainNodes()))) {
// Did not match!
throw new XmlNodeMismatchException (array($this, $nodeName, $this->getCurrMainNode()), XmlParser::EXCEPTION_XML_NODE_MISMATCH);
} // END - if
// Construct method name
$methodName = 'finish' . $this->convertToClassName($nodeName);
// Call the corresponding method
//* DEBUG: */ echo "call: ".$methodName."
\n";
call_user_func_array(array($this->getMenuInstance(), $methodName), array());
}
/**
* Currently not used
*
* @param $resource XML parser resource (currently ignored)
* @param $characters Characters to handle
* @return void
* @todo Find something useful with this!
*/
public function characterHandler ($resource, $characters) {
// Trim all spaces away
$characters = trim($characters);
// Is this string empty?
if (empty($characters)) {
// Then skip it silently
return false;
} // END - if
// Unfinished work!
$this->partialStub("Handling extra characters is not yet supported!");
}
/**
* Intializes the menu
*
* @return void
* @todo Add cache creation here
*/
private function initMenu () {
// Unfinished work!
$this->partialStub('Please implement this method.');
}
/**
* Getter for menu cache file (FQFN)
*
* @return $fqfn Full-qualified file name of the menu cache
*/
public function getMenuCacheFqfn () {
// Get the FQFN ready
$fqfn = sprintf("%s%s%s/%s.%s",
$this->getConfigInstance()->getConfigEntry('base_path'),
$this->getGenericBasePath(),
'menus/_cache',
md5(
$this->getMenuInstance()->getMenuName() . ':' . $this->__toString() . ':' . $this->getMenuInstance()->__toString()
),
$this->getMenuInstance()->getMenuType()
);
// Return it
return $fqfn;
}
}
// [EOF]
?>