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320 jpm 1 
<?php
2 
/* vim: set expandtab tabstop=4 shiftwidth=4: */
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// +----------------------------------------------------------------------+
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// | PHP version 4.0                                                      |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997, 1998, 1999, 2000, 2001 The PHP Group             |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.0 of the PHP license,       |
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// | that is bundled with this package in the file LICENSE, and is        |
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// | available at through the world-wide-web at                           |
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// | http://www.php.net/license/2_02.txt.                                 |
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// | If you did not receive a copy of the PHP license and are unable to   |
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// | obtain it through the world-wide-web, please send a note to          |
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// | license@php.net so we can mail you a copy immediately.               |
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// +----------------------------------------------------------------------+
16 
// | Authors: Adam Daniel <adaniel1@eesus.jnj.com>                        |
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// |          Bertrand Mansion <bmansion@mamasam.com>                     |
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// +----------------------------------------------------------------------+
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//
443 ddelon 20 
// $Id: element.php,v 1.2 2005-09-20 17:01:22 ddelon Exp $
320 jpm 21 
 
22 
require_once('HTML/Common.php');
23 
 
24 
/**
25 
 * Base class for form elements
26 
 *
27 
 * @author       Adam Daniel <adaniel1@eesus.jnj.com>
28 
 * @author       Bertrand Mansion <bmansion@mamasam.com>
29 
 * @version      1.3
30 
 * @since        PHP4.04pl1
31 
 * @access       public
32 
 * @abstract
33 
 */
34 
class HTML_QuickForm_element extends HTML_Common
35 
{
36 
    // {{{ properties
37 
 
38 
    /**
39 
     * Label of the field
40 
     * @var       string
41 
     * @since     1.3
42 
     * @access    private
43 
     */
44 
    var $_label = '';
45 
 
46 
    /**
47 
     * Form element type
48 
     * @var       string
49 
     * @since     1.0
50 
     * @access    private
51 
     */
52 
    var $_type = '';
53 
 
54 
    /**
55 
     * Flag to tell if element is frozen
56 
     * @var       boolean
57 
     * @since     1.0
58 
     * @access    private
59 
     */
60 
    var $_flagFrozen = false;
61 
 
62 
    /**
63 
     * Does the element support persistant data when frozen
64 
     * @var       boolean
65 
     * @since     1.3
66 
     * @access    private
67 
     */
68 
    var $_persistantFreeze = false;
69 
 
70 
    // }}}
71 
    // {{{ constructor
72 
 
73 
    /**
74 
     * Class constructor
75 
     *
76 
     * @param    string     Name of the element
77 
     * @param    mixed      Label(s) for the element
78 
     * @param    mixed      Associative array of tag attributes or HTML attributes name="value" pairs
79 
     * @since     1.0
80 
     * @access    public
81 
     * @return    void
82 
     */
83 
    function HTML_QuickForm_element($elementName=null, $elementLabel=null, $attributes=null)
84 
    {
85 
        HTML_Common::HTML_Common($attributes);
86 
        if (isset($elementName)) {
87 
            $this->setName($elementName);
88 
        }
89 
        if (isset($elementLabel)) {
90 
            $this->setLabel($elementLabel);
91 
        }
92 
    } //end constructor
93 
 
94 
    // }}}
95 
    // {{{ apiVersion()
96 
 
97 
    /**
98 
     * Returns the current API version
99 
     *
100 
     * @since     1.0
101 
     * @access    public
102 
     * @return    float
103 
     */
104 
    function apiVersion()
105 
    {
106 
        return 2.0;
107 
    } // end func apiVersion
108 
 
109 
    // }}}
110 
    // {{{ getType()
111 
 
112 
    /**
113 
     * Returns element type
114 
     *
115 
     * @since     1.0
116 
     * @access    public
117 
     * @return    string
118 
     */
119 
    function getType()
120 
    {
121 
        return $this->_type;
122 
    } // end func getType
123 
 
124 
    // }}}
125 
    // {{{ setName()
126 
 
127 
    /**
128 
     * Sets the input field name
129 
     *
130 
     * @param     string    $name   Input field name attribute
131 
     * @since     1.0
132 
     * @access    public
133 
     * @return    void
134 
     */
135 
    function setName($name)
136 
    {
137 
        // interface method
138 
    } //end func setName
139 
 
140 
    // }}}
141 
    // {{{ getName()
142 
 
143 
    /**
144 
     * Returns the element name
145 
     *
146 
     * @since     1.0
147 
     * @access    public
148 
     * @return    string
149 
     */
150 
    function getName()
151 
    {
152 
        // interface method
153 
    } //end func getName
154 
 
155 
    // }}}
156 
    // {{{ setValue()
157 
 
158 
    /**
159 
     * Sets the value of the form element
160 
     *
161 
     * @param     string    $value      Default value of the form element
162 
     * @since     1.0
163 
     * @access    public
164 
     * @return    void
165 
     */
166 
    function setValue($value)
167 
    {
168 
        // interface
169 
    } // end func setValue
170 
 
171 
    // }}}
172 
    // {{{ getValue()
173 
 
174 
    /**
175 
     * Returns the value of the form element
176 
     *
177 
     * @since     1.0
178 
     * @access    public
179 
     * @return    mixed
180 
     */
181 
    function getValue()
182 
    {
183 
        // interface
184 
        return null;
185 
    } // end func getValue
186 
 
187 
    // }}}
188 
    // {{{ freeze()
189 
 
190 
    /**
191 
     * Freeze the element so that only its value is returned
192 
     *
193 
     * @access    public
194 
     * @return    void
195 
     */
196 
    function freeze()
197 
    {
198 
        $this->_flagFrozen = true;
199 
    } //end func freeze
200 
 
201 
    // }}}
202 
    // {{{ unfreeze()
203 
 
204 
   /**
205 
    * Unfreezes the element so that it becomes editable
206 
    *
207 
    * @access public
208 
    * @return void
209 
    * @since  3.2.4
210 
    */
211 
    function unfreeze()
212 
    {
213 
        $this->_flagFrozen = false;
214 
    }
215 
 
216 
    // }}}
217 
    // {{{ getFrozenHtml()
218 
 
219 
    /**
220 
     * Returns the value of field without HTML tags
221 
     *
222 
     * @since     1.0
223 
     * @access    public
224 
     * @return    string
225 
     */
226 
    function getFrozenHtml()
227 
    {
228 
        $value = $this->getValue();
229 
        return ('' != $value? htmlspecialchars($value): '&nbsp;') .
230 
               $this->_getPersistantData();
231 
    } //end func getFrozenHtml
232 
 
233 
    // }}}
234 
    // {{{ _getPersistantData()
235 
 
236 
   /**
237 
    * Used by getFrozenHtml() to pass the element's value if _persistantFreeze is on
238 
    *
239 
    * @access private
240 
    * @return string
241 
    */
242 
    function _getPersistantData()
243 
    {
244 
        if (!$this->_persistantFreeze) {
245 
            return '';
246 
        } else {
247 
            $id = $this->getAttribute('id');
443 ddelon 248 
            return '<input' . $this->_getAttrString(array(
249 
                       'type'  => 'hidden',
250 
                       'name'  => $this->getName(),
251 
                       'value' => $this->getValue()
252 
                   ) + (isset($id)? array('id' => $id): array())) . ' />';
320 jpm 253 
        }
254 
    }
255 
 
256 
    // }}}
257 
    // {{{ isFrozen()
258 
 
259 
    /**
260 
     * Returns whether or not the element is frozen
261 
     *
262 
     * @since     1.3
263 
     * @access    public
264 
     * @return    bool
265 
     */
266 
    function isFrozen()
267 
    {
268 
        return $this->_flagFrozen;
269 
    } // end func isFrozen
270 
 
271 
    // }}}
272 
    // {{{ setPersistantFreeze()
273 
 
274 
    /**
275 
     * Sets wether an element value should be kept in an hidden field
276 
     * when the element is frozen or not
277 
     *
278 
     * @param     bool    $persistant   True if persistant value
279 
     * @since     2.0
280 
     * @access    public
281 
     * @return    void
282 
     */
283 
    function setPersistantFreeze($persistant=false)
284 
    {
285 
        $this->_persistantFreeze = $persistant;
286 
    } //end func setPersistantFreeze
287 
 
288 
    // }}}
289 
    // {{{ setLabel()
290 
 
291 
    /**
292 
     * Sets display text for the element
293 
     *
294 
     * @param     string    $label  Display text for the element
295 
     * @since     1.3
296 
     * @access    public
297 
     * @return    void
298 
     */
299 
    function setLabel($label)
300 
    {
301 
        $this->_label = $label;
302 
    } //end func setLabel
303 
 
304 
    // }}}
305 
    // {{{ getLabel()
306 
 
307 
    /**
308 
     * Returns display text for the element
309 
     *
310 
     * @since     1.3
311 
     * @access    public
312 
     * @return    string
313 
     */
314 
    function getLabel()
315 
    {
316 
        return $this->_label;
317 
    } //end func getLabel
318 
 
319 
    // }}}
320 
    // {{{ _findValue()
321 
 
322 
    /**
323 
     * Tries to find the element value from the values array
324 
     *
325 
     * @since     2.7
326 
     * @access    private
327 
     * @return    mixed
328 
     */
329 
    function _findValue(&$values)
330 
    {
331 
        if (empty($values)) {
332 
            return null;
333 
        }
334 
        $elementName = $this->getName();
335 
        if (isset($values[$elementName])) {
336 
            return $values[$elementName];
337 
        } elseif (strpos($elementName, '[')) {
338 
            $myVar = "['" . str_replace(array(']', '['), array('', "']['"), $elementName) . "']";
339 
            return eval("return (isset(\$values$myVar)) ? \$values$myVar : null;");
340 
        } else {
341 
            return null;
342 
        }
343 
    } //end func _findValue
344 
 
345 
    // }}}
346 
    // {{{ onQuickFormEvent()
347 
 
348 
    /**
349 
     * Called by HTML_QuickForm whenever form event is made on this element
350 
     *
351 
     * @param     string    $event  Name of event
352 
     * @param     mixed     $arg    event arguments
353 
     * @param     object    $caller calling object
354 
     * @since     1.0
355 
     * @access    public
356 
     * @return    void
357 
     */
358 
    function onQuickFormEvent($event, $arg, &$caller)
359 
    {
360 
        switch ($event) {
361 
            case 'createElement':
362 
                $className = get_class($this);
363 
                $this->$className($arg[0], $arg[1], $arg[2], $arg[3], $arg[4]);
364 
                break;
365 
            case 'addElement':
366 
                $this->onQuickFormEvent('createElement', $arg, $caller);
367 
                $this->onQuickFormEvent('updateValue', null, $caller);
368 
                break;
369 
            case 'updateValue':
370 
                // constant values override both default and submitted ones
371 
                // default values are overriden by submitted
372 
                $value = $this->_findValue($caller->_constantValues);
373 
                if (null === $value) {
374 
                    $value = $this->_findValue($caller->_submitValues);
375 
                    if (null === $value) {
376 
                        $value = $this->_findValue($caller->_defaultValues);
377 
                    }
378 
                }
379 
                if (null !== $value) {
380 
                    $this->setValue($value);
381 
                }
382 
                break;
383 
            case 'setGroupValue':
384 
                $this->setValue($arg);
385 
        }
386 
        return true;
387 
    } // end func onQuickFormEvent
388 
 
389 
    // }}}
390 
    // {{{ accept()
391 
 
392 
   /**
393 
    * Accepts a renderer
394 
    *
395 
    * @param object     An HTML_QuickForm_Renderer object
396 
    * @param bool       Whether an element is required
397 
    * @param string     An error message associated with an element
398 
    * @access public
399 
    * @return void
400 
    */
401 
    function accept(&$renderer, $required=false, $error=null)
402 
    {
403 
        $renderer->renderElement($this, $required, $error);
404 
    } // end func accept
405 
 
406 
    // }}}
407 
    // {{{ _generateId()
408 
 
409 
   /**
410 
    * Automatically generates and assigns an 'id' attribute for the element.
411 
    *
412 
    * Currently used to ensure that labels work on radio buttons and
413 
    * checkboxes. Per idea of Alexander Radivanovich.
414 
    *
415 
    * @access private
416 
    * @return void
417 
    */
418 
    function _generateId()
419 
    {
420 
        static $idx = 1;
421 
 
422 
        if (!$this->getAttribute('id')) {
423 
            $this->updateAttributes(array('id' => 'qf_' . substr(md5(microtime() . $idx++), 0, 6)));
424 
        }
425 
    } // end func _generateId
426 
 
427 
    // }}}
428 
    // {{{ exportValue()
429 
 
430 
   /**
431 
    * Returns a 'safe' element's value
432 
    *
433 
    * @param  array   array of submitted values to search
434 
    * @param  bool    whether to return the value as associative array
435 
    * @access public
436 
    * @return mixed
437 
    */
438 
    function exportValue(&$submitValues, $assoc = false)
439 
    {
440 
        $value = $this->_findValue($submitValues);
441 
        if (null === $value) {
442 
            $value = $this->getValue();
443 
        }
444 
        return $this->_prepareValue($value, $assoc);
445 
    }
446 
 
447 
    // }}}
448 
    // {{{ _prepareValue()
449 
 
450 
   /**
451 
    * Used by exportValue() to prepare the value for returning
452 
    *
453 
    * @param  mixed   the value found in exportValue()
454 
    * @param  bool    whether to return the value as associative array
455 
    * @access private
456 
    * @return mixed
457 
    */
458 
    function _prepareValue($value, $assoc)
459 
    {
460 
        if (null === $value) {
461 
            return null;
462 
        } elseif (!$assoc) {
463 
            return $value;
464 
        } else {
465 
            $name = $this->getName();
466 
            if (!strpos($name, '[')) {
467 
                return array($name => $value);
468 
            } else {
469 
                $valueAry = array();
470 
                $myIndex  = "['" . str_replace(array(']', '['), array('', "']['"), $name) . "']";
471 
                eval("\$valueAry$myIndex = \$value;");
472 
                return $valueAry;
473 
            }
474 
        }
475 
    }
476 
 
477 
    // }}}
478 
} // end class HTML_QuickForm_element
479 
?>