1 <?php
3 /*! \brief Exception implementation for ObjectListViewport
4 \author Cajus Pollmeier <pollmeier@gonicus.de>
5 \version 1.00
6 \date 2007/11/02
8 This class handles the exceptions occuring in ObjectListViewport.
9 */
10 class ObjectListViewportException extends Exception {
11 public function __construct($message, $code = 0) {
12 parent::__construct($message, $code);
13 }
14 }
17 /*! \brief Implementation for ObjectListViewport
18 \author Cajus Pollmeier <pollmeier@gonicus.de>
19 \version 1.00
20 \date 2007/11/02
22 This class handles painting of ObjectList objects.
24 \sa ObjectList
25 */
26 class ObjectListViewport {
28 /* Dummy here ----> */
29 private $headline;
30 private $footer;
31 private $entryFormat;
32 private $attributes= array('cn', '_icon', '_actions', 'dn');
34 /* <---- Dummy here */
36 /*!
37 \brief Container for objects
39 This variable stores the ObjectList object to be displayed.
40 */
41 private $objects;
43 /*!
44 \brief Switch to handle multiselect or not
45 */
46 private $multiselect;
48 /*! \brief ID used to identify objects of same list */
49 private $id = "";
51 /*! \brief ObjectListViewport constructor
53 The ObjectListViewport class renders/handles the ObjectList defined by $config.
55 \param config Config section that is used to configure this ObjectListViewport
56 */
57 public function __construct($config, $multiselect= TRUE){
59 $this->multiselect= $multiselect;
60 /* Dummy here */
61 $cr= Registry::getInstance("ConfigManager");
62 $cr->setSection($config);
63 $this->headline= $this->parseHeadline($cr->getValue("headline"));
64 $this->footer= $cr->getValue("footer");
65 $this->entryFormat= $cr->getValue("entryFormat");
67 /* Load and instanciate classes, extract filter, icons, view hooks, etc. */
68 $this->objects= new ObjectList($config);
70 /* generate an unique id */
71 $this->id = preg_replace("/[^0-9]/","",microtime());
72 }
74 /*! \brief Handles _POST / _GET events
76 Processes the list of registered plugins to do their eventHandler and adapt
77 internal objectlist according to this.
78 */
79 public function eventHandler(){
80 /* Reloads the list if things have changed interally */
81 $this->objects->reload();
82 }
85 /*! \brief Renders headline into a string
87 Gets the headline description from the ObjectList object and renders it.
89 \return HTML rendered headline
90 */
91 private function renderHeadline(){
92 $buffer ="<table class='ObjectListViewport_Header_Table'>\n";
93 $buffer.="<tr>\n";
94 foreach($this->headline as $key => $value){
95 $buffer .= "<td style='".$value['style']."'>".$value['name']."</td>\n";
96 }
97 $buffer.="<td style='width:13px;'> </td>";
98 $buffer.="</tr>\n";
99 $buffer.="</table>\n";
100 return $buffer;
101 }
104 /*! \brief Renders footer into a string
106 Gets the footer description from the ObjectList object and renders it.
108 \return HTML rendered footer
109 */
110 private function renderFooter(){
111 $buffer ="<table class='ObjectListViewport_Footer_Table'>\n";
112 $buffer.="<tr>\n";
113 $buffer.= "<td class='ObjectListViewport_Footer_Cell' colspan='".count($this->headline)."'>".$this->footer."</td>\n";
114 $buffer.="</tr>\n";
115 $buffer.="</table>\n";
116 return $buffer;
117 }
120 private function getEntryIcon($entry,$alt = ""){
121 return("<img src='images/".$entry['_icon']."' alt='".$alt."' class='center'>");
122 }
125 /*! \brief Renders entries from the ObjectList iterator into a string
126 Gets the entry descriptions from the ObjectList object and renders them.
127 \return HTML rendered list entries
128 */
129 private function renderEntry($entry){
131 /* Copy template */
132 $buffer= $this->entryFormat;
134 /* Replace set of attributes */
135 foreach ($this->attributes as $attribute){
136 if (!isset($entry[$attribute])){
137 throw new ObjectListViewportException(sprintf(_("Can't locate attribute '%s' to replace in entry!"), $attribute));
138 } else {
140 if(preg_match("/_icon/i",$attribute)){
141 $buffer= preg_replace('/\{'.$attribute.'\}/', $this->getEntryIcon($entry),$buffer);
142 }else{
143 $buffer= preg_replace('/\{'.$attribute.'\}/', $entry[$attribute],$buffer);
144 }
145 }
146 }
148 /* Execute optional filters */
149 preg_match_all ( '/\{_filter\(([^)]+)\)\}/', $buffer, $matches, PREG_SET_ORDER);
150 foreach ($matches as $match){
151 $filterName= preg_replace('/,.+$/', '', $match[1]);
152 $filterParameter= preg_replace('/^[^,]+,/', '', $match[1]);
153 $buffer= preg_replace('/\{_filter\('.normalizePreg($match[1]).'\)\}/', $this->applyEntryFilter($filterName, $filterParameter), $buffer);
154 }
156 #TODO: Make $buffer a proper HTML table output
158 $tmp = split("\|",trim($buffer,"|"));
161 $buffer="<tr>\n";
162 foreach($tmp as $key => $value){
164 if(1 || empty($this->headline[$key]['width']) || preg_match("/\%/",$this->headline[$key]['width'])){
165 $buffer .= "<td class='ObjectListViewport_Entry_Cell' style='".$this->headline[$key]['style']."'>".
166 "<div style='overflow:hidden;".$this->headline[$key]['style']."'>".
167 $value.
168 "</div>".
169 "</td>\n";
170 }else{
171 $buffer .= "<td class='ObjectListViewport_Entry_Cell' style='".$this->headline[$key]['style']."'>".
172 $value.
173 "</td>\n";
174 }
175 }
176 $buffer.="</tr>\n";
178 return $buffer."\n";
179 }
182 /*! \brief Applies filter to the given entry format string.
184 Instanciates the given ObjectListEntryFilter and calls the method.
186 \return rendered output
187 \sa ObjectListEntryFilter
188 */
189 private function applyEntryFilter($filterName, $string){
190 $className= "ObjectListEntryFilter_".$filterName;
191 $cl= new $className;
192 return $cl->filter("$string");
193 }
196 /*! \brief Renders complete ObjectList into a string
198 \return HTML rendered list
199 */
200 public function render() {
202 $header = $this->renderHeadline();
203 $footer = $this->renderFooter();
205 /* Apply current filter */
206 $entries = "";
207 $objects= new ObjectListFilterIterator($this->objects->getIterator());
208 foreach ($objects as $value){
209 $entries .= $this->renderEntry($value);
210 }
212 /* Generate fixed headline */
213 $buffer = "
214 <table class='ObjectListViewport' id='ObjectListViewport".$this->id."' cellspacing=0 cellpadding=0>
215 <tr>
216 <td>
217 <table class='ObjectListViewport_Table' id='ObjectListViewport_Table".$this->id."' cellpadding=0 cellspacing=0 >
218 <tr>
219 <td class='ObjectListViewport_TD_Header' id='ObjectListViewport_TD_Header".$this->id."'>
220 ".$header."
221 </td>
222 </tr>
223 <tr>
224 <td class='ObjectListViewport_TD_Entries' id='ObjectListViewport_TD_Entries".$this->id."'>
225 <div class='ObjectListViewport_Entry_Cover' id='ObjectListViewport_Entry_Cover".$this->id."'>
226 <table class='ObjectListViewport_Entry_Table' id='ObjectListViewport_Entry_Table".$this->id."'>
227 ".$entries."
228 </table>
229 </div>
230 </td>
231 </tr>
232 <tr>
233 <td class='ObjectListViewport_TD_Footer' id='ObjectListViewport_TD_Footer".$this->id."'>
234 ".$footer."
235 </td>
236 </tr>
237 </table>
239 </td>
240 </tr>
241 </table>
242 ";
244 return ($buffer);
245 }
248 /*! \brief Parses the given headline format string
250 \return Array with cell properties (width, alignment,name)
251 */
252 private function parseHeadline($data)
253 {
254 /* Each cell definition is seperated by |
255 * split by and go through each definition
256 */
257 $tmp = split("\|",trim($data,"|"));
258 $cell_formats = array();
259 foreach($tmp as $key => $data){
261 $s_width = "";
262 $s_alignment= "";
263 $s_name = preg_replace("/\{[^\}]*+\}/","",$data);
264 $s_style = "";
266 /* Parse format string and detect width & alignment */
267 if(preg_match("/\{.*\}/",$data)){
268 $s_format= preg_replace("/^[^\{]*+\{([^\}]*).*$/","\\1",$data);
270 /* Get aligment */
271 if(preg_match("/:/",$s_format)){
272 $s_al = preg_replace("/^[^:]*+:([a-z]*).*$/i","\\1",$s_format);
274 if(preg_match("/T/i",$s_al)){
275 $s_alignment.= "top-" ;
276 $s_style.= "vertical-align: top;";
277 }
278 if(preg_match("/B/i",$s_al)){
279 $s_alignment.= "bottom-" ;
280 $s_style.= "vertical-align: bottom;";
281 }
282 if(preg_match("/R/i",$s_al)){
283 $s_alignment.= "right" ;
284 $s_style.= "text-align: right;";
285 }elseif(preg_match("/L/i",$s_al)){
286 $s_alignment.= "left" ;
287 $s_style.= "text-align: left;";
288 }elseif(preg_match("/C/i",$s_al) || preg_match("/M/i",$s_al) ){
289 $s_alignment.= "center" ;
290 $s_style.= "text-align: center;";
291 }
292 }
294 /* Get width */
295 $s_width = preg_replace("/^([^:]*).*$/","\\1",$s_format);
296 if(!empty($s_width)){
297 $s_style = "width: ".$s_width.";";
298 }
299 }
300 $cell_formats[$key] = array("name" => $s_name, "width" => $s_width, "alignment" => $s_alignment,"style" => $s_style);
301 }
302 return($cell_formats);
303 }
307 }
309 // vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
310 ?>