3 * An SelfConnect template engine class
5 * @author Roland Haeder <webmaster@ship-simu.org>
7 * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009, 2010 Core Developer Team
8 * @license GNU GPL 3.0 or any newer version
9 * @link http://www.ship-simu.org
10 * @todo This template engine does not make use of setTemplateType()
12 * This program is free software: you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation, either version 3 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 class SelfConnectTemplateEngine extends BaseTemplateEngine implements CompileableTemplate {
27 * Main nodes in the XML tree ('menu' is ignored)
29 private $mainNodes = array(
34 * Sub nodes in the XML tree
36 private $subNodes = array(
45 private $curr = array();
48 * Content from dependency
50 private $dependencyContent = array();
53 * Protected constructor
57 protected function __construct () {
58 // Call parent constructor
59 parent::__construct(__CLASS__);
63 * Creates an instance of the class TemplateEngine and prepares it for usage
65 * @param $appInstance A manageable application
66 * @return $templateInstance An instance of TemplateEngine
67 * @throws BasePathIsEmptyException If the provided $templateBasePath is empty
68 * @throws InvalidBasePathStringException If $templateBasePath is no string
69 * @throws BasePathIsNoDirectoryException If $templateBasePath is no
70 * directory or not found
71 * @throws BasePathReadProtectedException If $templateBasePath is
74 public static final function createSelfConnectTemplateEngine (ManageableApplication $appInstance) {
76 $templateInstance = new SelfConnectTemplateEngine();
78 // Get language and file I/O instances from application
79 $langInstance = $appInstance->getLanguageInstance();
80 $ioInstance = $appInstance->getFileIoInstance();
82 // Determine base path
83 $templateBasePath = $templateInstance->getConfigInstance()->getConfigEntry('application_base_path') . $appInstance->getRequestInstance()->getRequestElement('app') . '/';
85 // Is the base path valid?
86 if (empty($templateBasePath)) {
88 throw new BasePathIsEmptyException($templateInstance, self::EXCEPTION_UNEXPECTED_EMPTY_STRING);
89 } elseif (!is_string($templateBasePath)) {
91 throw new InvalidBasePathStringException(array($templateInstance, $templateBasePath), self::EXCEPTION_INVALID_STRING);
92 } elseif (!is_dir($templateBasePath)) {
94 throw new BasePathIsNoDirectoryException(array($templateInstance, $templateBasePath), self::EXCEPTION_INVALID_PATH_NAME);
95 } elseif (!is_readable($templateBasePath)) {
97 throw new BasePathReadProtectedException(array($templateInstance, $templateBasePath), self::EXCEPTION_READ_PROTECED_PATH);
101 $templateInstance->setTemplateBasePath($templateBasePath);
103 // Set the language and IO instances
104 $templateInstance->setLanguageInstance($langInstance);
105 $templateInstance->setFileIoInstance($ioInstance);
107 // Set template extensions
108 $templateInstance->setRawTemplateExtension($templateInstance->getConfigInstance()->getConfigEntry('raw_template_extension'));
109 $templateInstance->setCodeTemplateExtension($templateInstance->getConfigInstance()->getConfigEntry('self_connect_template_extension'));
111 // Absolute output path for compiled templates
112 $templateInstance->setCompileOutputPath($templateInstance->getConfigInstance()->getConfigEntry('base_path') . $templateInstance->getConfigInstance()->getConfigEntry('compile_output_path'));
114 // Init a variable stacker
115 $stackerInstance = ObjectFactory::createObjectByConfiguredName('self_connect_stacker_class');
118 $templateInstance->setStackerInstance($stackerInstance);
120 // Return the prepared instance
121 return $templateInstance;
125 * Load a specified self-connect template into the engine
127 * @param $template The self-connect template we shall load which is
128 * located in 'self_connect' by default
131 public function loadSelfConnectTemplate ($template = 'self_connect') {
133 $this->setTemplateType($this->getConfigInstance()->getConfigEntry('self_connect_template_type'));
135 // Load the special template
136 $this->loadTemplate($template);
140 * Getter for current main node
142 * @return $currMainNode Current main node
144 public final function getCurrMainNode () {
145 return $this->curr['main_node'];
149 * Setter for current main node
151 * @param $element Element name to set as current main node
152 * @return $currMainNode Current main node
154 private final function setCurrMainNode ($element) {
155 $this->curr['main_node'] = (string) $element;
159 * Getter for main node array
161 * @return $mainNodes Array with valid main node names
163 public final function getMainNodes () {
164 return $this->mainNodes;
168 * Getter for sub node array
170 * @return $subNodes Array with valid sub node names
172 public final function getSubNodes () {
173 return $this->subNodes;
177 * Handles the start element of an XML resource
179 * @param $resource XML parser resource (currently ignored)
180 * @param $element The element we shall handle
181 * @param $attributes All attributes
183 * @throws InvalidXmlNodeException If an unknown/invalid XML node name was found
185 public function startElement ($resource, $element, array $attributes) {
186 // Initial method name which will never be called...
187 $methodName = 'initSelfConnect';
189 // Make the element name lower-case
190 $element = strtolower($element);
192 // Is the element a main node?
193 //* DEBUG: */ echo "START: >".$element."<<br />\n";
194 if (in_array($element, $this->getMainNodes())) {
195 // Okay, main node found!
196 $methodName = 'start' . $this->convertToClassName($element);
199 $this->setCurrMainNode($element);
200 } elseif (in_array($element, $this->getSubNodes())) {
202 $methodName = 'start' . $this->convertToClassName($element);
204 // Invalid node name found
205 throw new InvalidXmlNodeException(array($this, $element, $attributes), XmlParser::EXCEPTION_XML_NODE_UNKNOWN);
209 //* DEBUG: */ echo "call: ".$methodName."<br />\n";
210 call_user_func_array(array($this, $methodName), $attributes);
214 * Ends the main or sub node by sending out the gathered data
216 * @param $resource An XML resource pointer (currently ignored)
217 * @param $nodeName Name of the node we want to finish
219 * @throws XmlNodeMismatchException If current main node mismatches the closing one
221 public function endElement ($resource, $nodeName) {
222 // Make all lower-case
223 $nodeName = strtolower($nodeName);
225 // Does this match with current main node?
226 //* DEBUG: */ echo "END: >".$nodeName."<<br />\n";
227 if (($nodeName != $this->getCurrMainNode()) && (in_array($nodeName, $this->getMainNodes()))) {
229 throw new XmlNodeMismatchException (array($this, $nodeName, $this->getCurrMainNode()), XmlParser::EXCEPTION_XML_NODE_MISMATCH);
232 // Construct method name
233 $methodName = 'finish' . $this->convertToClassName($nodeName);
235 // Call the corresponding method
236 //* DEBUG: */ echo "call: ".$methodName."<br />\n";
237 call_user_func_array(array($this, $methodName), array());
243 * @param $resource XML parser resource (currently ignored)
244 * @param $characters Characters to handle
246 * @todo Find something useful with this!
248 public function characterHandler ($resource, $characters) {
249 // Trim all spaces away
250 $characters = trim($characters);
252 // Is this string empty?
253 if (empty($characters)) {
254 // Then skip it silently
258 // Assign the found characters to variable and use the last entry from
260 parent::assignVariable($this->getStackerInstance()->getNamed('self_connect'), $characters);
264 * Handles the template dependency for given node
266 * @param $node The node we should load a dependency template
267 * @param $templateDependency A template to load to satisfy dependencies
270 private function handleTemplateDependency ($node, $templateDependency) {
271 // Is the template dependency set?
272 if ((!empty($templateDependency)) && (!isset($this->dependencyContent[$node]))) {
273 // Get a temporay menu template instance
274 $templateInstance = ObjectFactory::createObjectByConfiguredName('self_connect_template_class', array($this->getApplicationInstance()));
277 $templateInstance->loadSelfConnectTemplate($templateDependency);
279 // Get an XmlParser instance
280 $templateInstance->renderXmlContent();
282 // Parse the template's content contents
283 $this->dependencyContent[$node] = $templateInstance->getRawTemplateData();
288 * Getter for cache file (FQFN)
290 * @return $fqfn Full-qualified file name of the menu cache
292 public function getMenuCacheFqfn () {
293 $this->partialStub('Please implement this method.');
297 * Starts the self_connect
301 private function startSelfConnect () {
302 // Push the node name on the stacker
303 $this->getStackerInstance()->pushNamed('self_connect', 'self-connect');
307 * Starts the self_connect data
311 private function startSelfConnectData () {
312 // Push the node name on the stacker
313 $this->getStackerInstance()->pushNamed('self_connect', 'self-connect-data');
321 private function startNodeId () {
322 // Push the node name on the stacker
323 $this->getStackerInstance()->pushNamed('self_connect', 'node-id');
327 * Starts the session id
331 private function startSessionId () {
332 // Push the node name on the stacker
333 $this->getStackerInstance()->pushNamed('self_connect', 'session-id');
337 * Finishes the session id
341 private function finishSessionId () {
342 // Pop the last entry
343 $this->getStackerInstance()->popNamed('self_connect');
347 * Finishes the node id
351 private function finishNodeId () {
352 // Pop the last entry
353 $this->getStackerInstance()->popNamed('self_connect');
357 * Finishes the self_connect data
361 private function finishSelfConnectData () {
362 // Pop the last entry
363 $this->getStackerInstance()->popNamed('self_connect');
367 * Finishes the self_connect
371 private function finishSelfConnect () {
372 // Pop the last entry
373 $this->getStackerInstance()->popNamed('self_connect');