form.inc 27.9 KB
Newer Older
1
<?php
2
3
// $Id$

4
5
6
7
8
9
10
/**
 * @defgroup form Form generation
 * @{
 * Functions to enable output of HTML forms and form elements.
 *
 * Drupal uses these functions to achieve consistency in its form presentation,
 * while at the same time simplifying code and reducing the amount of HTML that
11
12
13
14
15
 * must be explicitly generated by modules. See the
 * <a href="http://drupaldocs.org/api/head/file/contributions/docs/developer/topics/forms_api_reference.html">reference</a>
 * and the
 * <a href="http://drupaldocs.org/api/file/contributions/docs/developer/topics/forms_api.html">quickstart</a>
 * guide for more.
16
17
18
19
20
21
 */

/**
 * Check if the key is a property.
 */
function element_property($key) {
22
  return $key{0} == '#';
23
24
25
}

function element_properties($element) {
Steven Wittens's avatar
Steven Wittens committed
26
  return array_filter(array_keys((array) $element), 'element_property');
27
28
29
30
31
32
}

/**
 * Check if the key is a child.
 */
function element_child($key) {
33
  return $key{0} != '#';
34
35
36
}

function element_children($element) {
Steven Wittens's avatar
Steven Wittens committed
37
  return array_filter(array_keys((array) $element), 'element_child');
38
39
40
41
42
43
}

/**
 * Processes a form array, and produces the HTML output of a form.
 * If there is input in the $_POST['edit'] variable, this function
 * will attempt to validate it, using <code>drupal_validate_form</code>,
44
 * and then submit the form using <code>drupal_submit_form</code>.
45
46
47
48
49
50
51
52
53
54
 *
 * @param $form_id
 *   A unique string identifying the form. Allows each form to be themed.
 * @param $form
 *   An associative array containing the structure of the form.
 * @param $callback
 *   An optional callback that will be used in addition to the form_id.
 *
 */
function drupal_get_form($form_id, &$form, $callback = NULL) {
Dries Buytaert's avatar
Dries Buytaert committed
55
  global $form_values, $form_submitted;
56
  $form_values = array();
Dries Buytaert's avatar
Dries Buytaert committed
57
  $form_submitted = FALSE;
Steven Wittens's avatar
Steven Wittens committed
58

59
60
  $form['#type'] = 'form';
  if (isset($form['#token'])) {
61
62
63
64
65
    // Make sure that a private key is set:
    if (!variable_get('drupal_private_key', '')) {
      variable_set('drupal_private_key', mt_rand());
    }

66
    $form['form_token'] = array('#type' => 'hidden', '#value' => md5($_SERVER['REMOTE_ADDR'] . $form['#token'] . variable_get('drupal_private_key', '')));
67
  }
Steven Wittens's avatar
Steven Wittens committed
68
69
  $form['form_id'] = array('#type' => 'hidden', '#default_value' => $form_id);

70
71
  $form = array_merge(_element_info('form'), $form);

Dries Buytaert's avatar
Dries Buytaert committed
72
73
  if (!isset($form['#validate'])) {
    if (function_exists($form_id .'_validate')) {
74
      $form['#validate'] = array($form_id .'_validate' => array());
Dries Buytaert's avatar
Dries Buytaert committed
75
76
    }
    elseif (function_exists($callback .'_validate')) {
77
      $form['#validate'] = array($callback .'_validate' => array());
Dries Buytaert's avatar
Dries Buytaert committed
78
79
80
    }
  }

81
82
  if (!isset($form['#submit'])) {
    if (function_exists($form_id .'_submit')) {
83
84
85
      // we set submit here so that it can be altered but use reference for
      // $form_values because it will change later
      $form['#submit'] = array($form_id .'_submit' => array($form_id, &$form_values));
Dries Buytaert's avatar
Dries Buytaert committed
86
    }
87
    elseif (function_exists($callback .'_submit')) {
88
      $form['#submit'] = array($callback .'_submit' => array($form_id, &$form_values));
Dries Buytaert's avatar
Dries Buytaert committed
89
90
91
    }
  }

92
93
  foreach (module_implements('form_alter') as $module) {
    $function = $module .'_form_alter';
94
    $function($form_id, $form);
95
96
  }

97
  $form = _form_builder($form_id, $form);
Steven Wittens's avatar
Steven Wittens committed
98

99
  if (!empty($_POST['edit']) && (($_POST['edit']['form_id'] == $form_id) || ($_POST['edit']['form_id'] == $callback))) {
100
    drupal_validate_form($form_id, $form, $callback);
Dries Buytaert's avatar
Dries Buytaert committed
101
    if ($form_submitted && !form_get_errors()) {
102
      drupal_submit_form($form_id, $form, $callback);
103
    }
104
105
106
  }

  if (function_exists('theme_' . $form_id)) {
107
    $form['#theme'] = $form_id;
108
109
  }
  elseif (function_exists('theme_' . $callback)) {
110
    $form['#theme'] = $callback;
111
112
113
114
115
116
117
  }
  return form_render($form);
}

function drupal_validate_form($form_id, &$form, $callback = NULL) {
  global $form_values;

118
119
  if (isset($form['#token'])) {
    if ($form_values['form_token'] != md5($_SERVER['REMOTE_ADDR'] . $form['#token'] . variable_get('drupal_private_key', ''))) {
120
121
122
123
124
      // setting this error will cause the form to fail validation
      form_set_error('form_token', t('Validation error, please try again.  If this error persists, please contact the site administrator.'));
    }
  }

125
  _form_validate($form, $form_id);
126
127
}

128
function drupal_submit_form($form_id, $form, $callback = NULL) {
129
130
  global $form_values;

131
  if (isset($form['#submit'])) {
132
133
134
    foreach ($form['#submit'] as $function => $args) {
      if (function_exists($function)) {
        call_user_func_array($function, $args);
Dries Buytaert's avatar
Dries Buytaert committed
135
136
      }
    }
137
138
139
  }
}

140
function _form_validate($elements, $form_id = NULL) {
141
  /* Validate the current input */
142
  if (!$elements['#validated'] && ($elements['#input'] || isset($form_id))) {
143
144
145
146
    // An empty checkbox returns 0, an empty textfield returns '' so we use empty().
    // Unfortunately, empty('0') returns TRUE so we need a special check for the '0' string.
    if ($elements['#required'] && empty($elements['#value']) && $elements['#value'] !== '0') {
      form_error($elements, t('%name field is required', array('%name' => $elements['#title'])));
147
    }
Dries Buytaert's avatar
Dries Buytaert committed
148
    if (isset($elements['#validate'])) {
149
150
151
152
153
      foreach ($elements['#validate'] as $function => $args) {
        $args = array_merge(array($elements), $args);
        // for the full form we hand over a copy of $form_values
        if (isset($form_id)) {
          $args = array_merge(array($form_id, $GLOBALS['form_values']), $args);
154
        }
155
156
        if (function_exists($function))  {
          call_user_func_array($function, $args);
157
158
159
        }
      }
    }
160
    $elements['#validated'] = TRUE;
161
  }
162
163
164
165
166
167
168

  // Recurse through all children.
  foreach (element_children($elements) as $key) {
    if (isset($elements[$key]) && $elements[$key]) {
      _form_validate($elements[$key]);
    }
  }
169
170
}

171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
/**
 * File an error against a form element. If the name of the element is
 * edit[foo][bar] then you may pass either foo or foo][bar as $name
 * foo will set an error for all its children.
 */
function form_set_error($name = NULL, $message = NULL) {
  static $form = array();
  if (isset($name) && !isset($form[$name])) {
    $form[$name] = $message;
    drupal_set_message($message, 'error');
  }
  return $form;
}

/**
 * Return an associative array of all errors.
 */
function form_get_errors() {
  $form = form_set_error();
  if (!empty($form)) {
    return $form;
  }
}

/**
 * Return the error message filed against the form with the specified name.
 */
function form_get_error($element) {
  $form = form_set_error();
  $key = $element['#parents'][0];
  if (isset($form[$key])) {
    return $form[$key];
  }
  $key = implode('][', $element['#parents']);
  if (isset($form[$key])) {
    return $form[$key];
  }
}

210
211
212
213
/**
 * Flag an element as having an error.
 */
function form_error(&$element, $message) {
214
  $element['#error'] = TRUE;
215
  form_set_error(implode('][', $element['#parents']), $message);
216
217
218
219
220
221
222
}

/**
 * Adds some required properties to each form element, which are used internally in the form api.
 * This function also automatically assigns the value property from the $edit array, provided the
 * element doesn't already have an assigned value.
 */
223
function _form_builder($form_id, $form) {
224
  global $form_values;
Dries Buytaert's avatar
Dries Buytaert committed
225
  global $form_submitted;
226
  /* Use element defaults */
227
  if ((!empty($form['#type'])) && ($info = _element_info($form['#type']))) {
228
229
230
    $form += $info;
  }

231
  if ($form['#input']) {
232
233
234
235
236
237
    if (!isset($form['#name'])) {
      $form['#name'] = 'edit[' . implode('][', $form['#parents']) . ']';
    }
    if (!isset($form['#id'])) {
      $form['#id'] =  'edit-' . implode('-', $form['#parents']);
    }
238

239
    $posted = (isset($_POST['edit']) && ($_POST['edit']['form_id'] == $form_id));
240
241
    $edit = $posted ? $_POST['edit'] : array();
    $ref =& $form_values;
242
    foreach ($form['#parents'] as $parent) {
243
244
245
      $edit = isset($edit[$parent]) ? $edit[$parent] : NULL;
      $ref =& $ref[$parent];
    }
246
    if (!isset($form['#value'])) {
247
248
249
250
251
252
253
254
255
256
257
      if ($posted) {
        if (isset($edit)) {
          $form['#value'] = $edit; // normal element
        }
        elseif (isset($form['#return_value'])) {
          $form['#value'] = 0; // checkbox unchecked
        }
      }
      if (!isset($form['#value'])) {
        $form['#value'] = $form['#default_value'];
      }
258
    }
Dries Buytaert's avatar
Dries Buytaert committed
259
    if (isset($form['#form_submitted'])) {
260
      if ($_POST[$form['#name']] == $form['#value']) {
Dries Buytaert's avatar
Dries Buytaert committed
261
        $form_submitted = $form_submitted || $form['#form_submitted'];
262
263
264
      }
    }

265
    $ref = $form['#value'];
266
267
268
  }

  // Allow for elements to expand to multiple elements. Radios, checkboxes and files for instance.
269
  if (isset($form['#process']) && !$form['#processed']) {
270
271
    foreach ($form['#process'] as $process => $args) {
      if (function_exists($process)) {
272
273
        $args = array_merge(array($form), $args);
        $form = call_user_func_array($process, $args);
274
275
      }
    }
276
    $form['#processed'] = TRUE;
277
278
279
280
281
  }

  // Recurse through all child elements.
  $count  = 0;
  foreach (element_children($form) as $key) {
Steven Wittens's avatar
Steven Wittens committed
282
    // don't squash an existing tree value
283
284
285
    if (!isset($form[$key]['#tree'])) {
      $form[$key]['#tree'] = $form['#tree'];
    }
Steven Wittens's avatar
Steven Wittens committed
286

287
288
    // don't squash existing parents value
    if (!isset($form[$key]['#parents'])) {
289
290
      // Check to see if a tree of child elements is present. If so, continue down the tree if required.
      $form[$key]['#parents'] = $form[$key]['#tree'] && $form['#tree'] ? array_merge($form['#parents'], array($key)) : array($key);
Steven Wittens's avatar
Steven Wittens committed
291
292
    }

293
    # Assign a decimal placeholder weight, to preserve original array order
294
295
296
    if (!isset($form[$key]['#weight'])) {
      $form[$key]['#weight'] = $count/1000;
    }
297
    $form[$key] = _form_builder($form_id, $form[$key]);
298
299
300
    $count++;
  }

301
302
303
  if (function_exists($form['#after_build']) && !isset($form['#after_build_done'])) {
    $form = call_user_func($form['#after_build'], $form, $form_values);
    $form['#after_build_done'] = TRUE;
Steven Wittens's avatar
Steven Wittens committed
304
  }
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320

  return $form;
}

/**
 * Renders a HTML form given an form tree.  Recursively iterates over each of
 * each of the form elements generating HTML code.  This function is usually
 * called from within a theme.  To render a form from within a module, use
 * <code>drupal_get_form()</code>.
 *
 * @param $elements
 *   The form tree describing the form.
 * @return
 *   The rendered HTML form.
 */
function form_render(&$elements) {
321
322
  if (!isset($elements)) {
    return NULL;
323
  }
324
325
  $content = '';
  uasort($elements, "_form_sort");
326

327
  if (!$elements['#children']) {
328
    /* render all the children using a theme function */
329
330
331
332
333
334
    if ($elements['#theme'] && !$elements['#theme_used']) {
      $elements['#theme_used'] = TRUE;
      $previous_type = $elements['#type'];
      $elements['#type'] = 'markup';
      $content = theme($elements['#theme'], $elements);
      $elements['#type'] = $previous_type;
335
336
337
338
339
340
341
342
343
    }
    /* render each of the children using form_render and concatenate them */
    if (!$content) {
      foreach (element_children($elements) as $key) {
        $content .= form_render($elements[$key]);
      }
    }
  }
  if ($content) {
344
    $elements['#children'] = $content;
345
346
347
  }

  /* Call the form element renderer */
348
349
350
  if (!$elements['#printed']) {
    $content = theme(($elements['#type']) ? $elements['#type']: 'markup', $elements);
    $elements['#printed'] = TRUE;
351
352
  }

353
354
355
  if ($content) {
    return $elements['#prefix'] . $content . $elements['#suffix'];
  }
356
357
358
359
360
361
}

/**
 * Function used by uasort in form render to sort form via weight.
 */
function _form_sort($a, $b) {
362
363
364
  $a_weight = (is_array($a) && isset($a['#weight'])) ? $a['#weight'] : 0;
  $b_weight = (is_array($b) && isset($b['#weight'])) ? $b['#weight'] : 0;
  if ($a_weight == $b_weight) {
365
366
    return 0;
  }
367
  return ($a_weight < $b_weight) ? -1 : 1;
368
369
370
371
372
373
374
}

/**
 * Retrieve the default properties for the defined element type.
 */
function _element_info($type, $refresh = null) {
  static $cache;
Steven Wittens's avatar
Steven Wittens committed
375
376

  $parents = array();
377
  $basic_defaults = array(
378
379
380
    '#description' => NULL,
    '#attributes' => array(),
    '#required' => FALSE,
Steven Wittens's avatar
Steven Wittens committed
381
382
    '#tree' => FALSE,
    '#parents' => $parents
383
  );
384
  if ($refresh || !isset($cache)) {
385
386
387
    $cache = array();
    foreach (module_implements('elements') as $module) {
      $elements = module_invoke($module, 'elements');
388
      if (isset($elements) && is_array($elements)) {
389
        $cache = array_merge_recursive($cache, $elements);
390
391
392
393
      }
    }
    if (sizeof($cache)) {
      foreach ($cache as $element_type => $info) {
394
        $cache[$element_type] = array_merge_recursive($basic_defaults, $info);
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
      }
    }
  }

  return $cache[$type];
}

/**
 * Format a dropdown menu or scrolling selection box.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used : title, value, options, description, extra, multiple, required
 * @return
 *   A themed HTML string representing the form element.
 *
 * It is possible to group options together; to do this, change the format of
 * $options to an associative array in which the keys are group labels, and the
 * values are associative arrays in the normal $options format.
 */
function theme_select($element) {
  $select = '';
417
  foreach ($element['#options'] as $key => $choice) {
418
419
420
    if (is_array($choice)) {
      $select .= '<optgroup label="'. $key .'">';
      foreach ($choice as $key => $choice) {
421
        $select .= '<option value="'. $key .'"'. (is_array($element['#value']) ? (in_array($key, $element['#value']) ? ' selected="selected"' : '') : ($element['#value'] == $key ? ' selected="selected"' : '')) .'>'. check_plain($choice) .'</option>';
422
423
424
425
      }
      $select .= '</optgroup>';
    }
    else {
426
      $select .= '<option value="'. $key .'"'. (is_array($element['#value']) ? (in_array($key, $element['#value']) ? ' selected="selected"' : '') : ($element['#value'] == $key ? ' selected="selected"' : '')) .'>'. check_plain($choice) .'</option>';
427
428
    }
  }
Steven Wittens's avatar
Steven Wittens committed
429
  return theme('form_element', $element['#title'], '<select name="'. $element['#name'] .''. ($element['#multiple'] ? '[]' : '') .'"'. ($element['#multiple'] ? ' multiple="multiple" ' : '') . drupal_attributes($element['#attributes']) .' id="' . $element['#id'] .'">'. $select .'</select>', $element['#description'], $element['#id'], $element['#required'], form_get_error($element));
430
431
432
433
434
435
436
437
438
439
440
441
}

/**
 * Format a group of form items.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used : attributes, title, description, children, collapsible, collapsed
 * @return
 *   A themed HTML string representing the form item group.
 */
function theme_fieldset($element) {
442
  if ($element['#collapsible']) {
443
444
    drupal_add_js('misc/collapse.js');

445
446
447
    $element['#attributes']['class'] .= ' collapsible';
    if ($element['#collapsed']) {
     $element['#attributes']['class'] .= ' collapsed';
448
449
450
    }
  }

451
  return '<fieldset' . drupal_attributes($element['#attributes']) .'>' . ($element['#title'] ? '<legend>'. $element['#title'] .'</legend>' : '') . $element['#children'] . $element['#value'] . ($element['#description'] ? '<div class="description">'. $element['#description'] .'</div>' : '') . "</fieldset>\n";
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466

}


/**
 * Format a radio button.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used : required, return_value, value, attributes, title, description
 * @return
 *   A themed HTML string representing the form item group.
 */
function theme_radio($element) {
  $output = '<input type="radio" ';
467
  $output .= 'class="'. _form_get_class('form-radio', $element['#required'], form_get_error($element)) .'" ';
468
469
470
471
472
473
  $output .= 'name="' . $element['#name'] .'" ';
  $output .= 'value="'. $element['#return_value'] .'" ';
  $output .= ($element['#value'] == $element['#return_value']) ? ' checked="checked" ' : ' ';
  $output .= drupal_attributes($element['#attributes']) .' />';
  if (!is_null($element['#title'])) {
    $output = '<label class="option">'. $output .' '. $element['#title'] .'</label>';
474
  }
475
  return theme('form_element', NULL, $output, $element['#description'], $element['#name'], $element['#required'], form_get_error($element));
476
477
478
479
480
481
482
483
484
485
486
487
}

/**
 * Format a set of radio buttons.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used : title, value, options, description, required and attributes.
 * @return
 *   A themed HTML string representing the radio button set.
 */
function theme_radios($element) {
488
  if ($element['#title'] || $element['#description']) {
489
    return theme('form_element', $element['#title'], $element['#children'], $element['#description'], $element['#id'], $element['#required'], form_get_error($element));
490
491
  }
  else {
492
    return $element['#children'];
493
494
495
496
  }
}

/**
497
 * Format a date selection element.
498
499
500
501
502
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used : title, value, options, description, required and attributes.
 * @return
503
 *   A themed HTML string representing the date selection boxes.
504
505
 */
function theme_date($element) {
506
  $output = '<div class="container-inline">' . $element['#children'] . '</div>';
507
  return theme('form_element', $element['#title'], $output, $element['#description'], $element['#id'], $element['#required'], form_get_error($element));
508
509
510
}

/**
511
 * Roll out a single date element.
512
513
514
 */
function expand_date($element) {
  // Default to current date
515
516
  if (!isset($element['#value'])) {
    $element['#value'] = array('day' => format_date(time(), 'custom', 'j'),
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
                            'month' => format_date(time(), 'custom', 'n'),
                            'year' => format_date(time(), 'custom', 'Y'));
  }

  // Determine the order of day, month, year in the site's chosen date format.
  $format = variable_get('date_format_short', 'm/d/Y');
  $sort = array();
  $sort['day'] = max(strpos($format, 'd'), strpos($format, 'j'));
  $sort['month'] = max(strpos($format, 'm'), strpos($format, 'M'));
  $sort['year'] = strpos($format, 'Y');
  asort($sort);
  $order = array_keys($sort);

  // Output multi-selector for date
  foreach ($order as $type) {
    switch ($type) {
      case 'day':
        $options = drupal_map_assoc(range(1, 31));
        break;
      case 'month':
537
        $options = drupal_map_assoc(range(1, 12), 'map_month');
538
539
540
541
542
        break;
      case 'year':
        $options = drupal_map_assoc(range(1900, 2050));
        break;
    }
543
544
545
546
547
548
549
550
551
    $parents = $element['#parents'];
    $parents[] = $type;
    $element[$type] = array(
      '#type' => 'select',
      '#value' => $element['#value'][$type],
      '#attributes' => $element['#attributes'],
      '#parents' => $parents,
      '#options' => $options,
    );
552
553
554
555
556
  }

  return $element;
}

557
558
559
560
561
562
/**
 * Helper function for usage with drupal_map_assoc to display month names.
 */
function map_month($month) {
  return format_date(gmmktime(0, 0, 0, $month, 2, 1970), 'custom', 'M', 0);
}
563
564

/**
565
 * Roll out a single radios element
566
 * to a list of radios, using the options array as index.
567
568
 */
function expand_radios($element) {
569
570
  if (count($element['#options']) > 0) {
    foreach ($element['#options'] as $key => $choice) {
571
      if (!$element[$key]) {
572
        $element[$key] = array('#type' => 'radio', '#title' => $choice, '#return_value' => $key, '#default_value' => $element['#default_value'], '#attributes' => $element['#attributes'], '#parents' => $element['#parents'], '#spawned' => TRUE);
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
      }
    }
  }
  return $element;
}


/**
 * Format a form item.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used :  title, value, description, required, error
 * @return
 *   A themed HTML string representing the form item.
 */
function theme_item($element) {
590
  return theme('form_element', $element['#title'], $element['#value'] . $element['#children'], $element['#description'], $element['#id'], $element['#required'], $element['#error']);
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
}


/**
 * Format a checkbox.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used :  title, value, return_value, description, required
 * @return
 *   A themed HTML string representing the checkbox.
 */
function theme_checkbox($element) {
  $checkbox = '<input ';
  $checkbox .= 'type="checkbox" ';
606
  $checkbox .= 'class="'. _form_get_class('form-checkbox', $element['#required'], form_get_error($element)) . '" ';
607
608
609
610
611
612
613
614
  $checkbox .= 'name="'. $element['#name'] .'" ';
  $checkbox .= 'id="'. $element['#id'].'" ' ;
  $checkbox .= 'value="'. $element['#return_value'] .'" ';
  $checkbox .= ($element['#value'] == $element['#return_value']) ? ' checked="checked" ' : ' ';
  $checkbox .= drupal_attributes($element['#attributes']) . ' />';

  if (!is_null($element['#title'])) {
    $checkbox = '<label class="option">'. $checkbox .' '. $element['#title'] .'</label>';
615
616
  }

617
  return theme('form_element', NULL, $checkbox, $element['#description'], $element['#name'], $element['#required'], form_get_error($element));
618
619
620
621
622
623
624
625
626
627
628
}

/**
 * Format a set of checkboxes.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 * @return
 *   A themed HTML string representing the checkbox set.
 */
function theme_checkboxes($element) {
629
  if ($element['#title'] || $element['#description']) {
630
    return theme('form_element', $element['#title'], $element['#children'], $element['#description'], 'edit-'. $element['#name'], $element['#required'], form_get_error($element));
631
632
  }
  else {
633
    return $element['#children'];
634
635
636
637
  }
}

function expand_checkboxes($element) {
638
  $value = is_array($element['#value']) ? $element['#value'] : array();
Steven Wittens's avatar
Steven Wittens committed
639
  $element['#tree'] = TRUE;
640
641
642
  if (count($element['#options']) > 0) {
    if (!isset($element['#default_value']) || $element['#default_value'] == 0) {
      $element['#default_value'] = array();
643
    }
644
    foreach ($element['#options'] as $key => $choice) {
645
      if (!isset($element[$key])) {
Steven Wittens's avatar
Steven Wittens committed
646
        $element[$key] = array('#type' => 'checkbox', '#processed' => TRUE, '#title' => $choice, '#default_value' => in_array($key, $value), '#attributes' => $element['#attributes']);
647
648
649
650
651
652
653
654
655
656
657
658
      }
    }
  }
  return $element;
}


function theme_submit($element) {
  return theme('button', $element);
}

function theme_button($element) {
659
  return '<input type="submit" class="form-'. $element['#button_type'] .'" name="'. $element['#name'] .'" value="'. check_plain($element['#value']) .'" '. drupal_attributes($element['#attributes']) ." />\n";
660
661
662
663
664
665
666
667
668
669
670
671
}

/**
 * Format a hidden form field.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used :  value, edit
 * @return
 *   A themed HTML string representing the hidden form field.
 */
function theme_hidden($element) {
672
  return '<input type="hidden" name="'. $element['#name'] . '" value="'. check_plain($element['#value']) ."\" " . drupal_attributes($element['#attributes']) ." />\n";
673
674
675
676
677
678
679
680
681
682
683
684
}

/**
 * Format a textfield.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used :  title, value, description, size, maxlength, required, attributes autocomplete_path
 * @return
 *   A themed HTML string representing the textfield.
 */
function theme_textfield($element) {
685
686
  $size = $element['#size'] ? ' size="' . $element['#size'] . '"' : '';
  if ($element['#autocomplete_path']) {
687
688
    drupal_add_js('misc/autocomplete.js');
    $class = ' form-autocomplete';
689
    $extra =  '<input class="autocomplete" type="hidden" id="'. $element['#id'] .'-autocomplete" value="'. check_url(url($element['#autocomplete_path'], NULL, NULL, TRUE)) .'" disabled="disabled" />';
690
691
  }

692
693
  $output = '<input type="text" maxlength="'. $element['#maxlength'] .'" class="'. _form_get_class("form-text$class", $element['#required'], form_get_error($element)) .'" name="'. $element['#name'] .'" id="'. $element['#id'] .'" '. $size .' value="'. check_plain($element['#value']) .'"'. drupal_attributes($element['#attributes']) .' />';
  return theme('form_element', $element['#title'], $output, $element['#description'], $element['#id'], $element['#required'], form_get_error($element)). $extra;
694
695
696
697
698
699
700
701
702
703
704
705
706
}

/**
 * Format a form.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used : action, method, attributes, children
 * @return
 *   A themed HTML string representing the form.
 */
function theme_form($element) {
  // Anonymous div to satisfy XHTML compliancy.
707
708
  $action = $element['#action'] ? 'action="' . check_url($element['#action']) . '" ' : '';
  return '<form '. $action . ' method="'. $element['#method'] .'" '. drupal_attributes($element['#attributes']) .">\n<div>". $element['#children'] ."\n</div></form>\n";
709
710
711
712
713
714
715
716
717
718
719
720
721
}


/**
 * Format a textarea.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used : title, value, description, rows, cols, required, attributes
 * @return
 *   A themed HTML string representing the textarea.
 */
function theme_textarea($element) {
722
  $cols = $element['#cols'] ? ' cols="'. $element['#cols'] .'"' : '';
723

724
  return theme('form_element', $element['#title'], '<textarea'. $cols .' rows="'. $element['#rows'] .'" name="'. $element['#name'] .'" id="' . $element['#id'] .'" class="'. _form_get_class('textarea', $element['#required'], form_get_error($element)) .'"'. drupal_attributes($element['#attributes']) .'>'. check_plain($element['#value']) .'</textarea>', $element['#description'], $element['#id'], $element['#required'], form_get_error($element));
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
}

/**
 * Format HTML markup for use in forms.
 *
 * This is used in more advanced forms, such as theme selection and filter format.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used : prefix, value, children and suffix.
 * @return
 *   A themed HTML string representing the HTML markup.
 */

function theme_markup($element) {
740
  return $element['#value'] . $element['#children'];
741
742
743
744
745
746
747
748
749
750
751
752
753
754
}



/**
* Format a password field.
*
* @param $element
*   An associative array containing the properties of the element.
*   Properties used :  title, value, description, size, maxlength, required, attributes
* @return
*   A themed HTML string representing the form.
*/
function theme_password($element) {
755
  $size = $element['#size'] ? ' size="'. $element['#size'] .'" ' : '';
756

757
  $output = '<input type="password" maxlength="'. $element['#maxlength'] .'" class="'. _form_get_class("form-text $class", $element['#required'], form_get_error($element)) .'" name="'. $element['#name'] .'" id="'. $element['#id'] .'" '. $size . drupal_attributes($element['#attributes']) .' />';
758

759
  return theme('form_element', $element['#title'], $output, $element['#description'], $element['#id'], $element['#required'], form_get_error($element));
760
761
762
763
764
765
766
767
768
769
770
771
}

/**
 * Format a weight selection menu.
 *
 * @param $element
 *   An associative array containing the properties of the element.
 *   Properties used :  title, delta, description
 * @return
 *   A themed HTML string representing the form.
 */
function theme_weight($element) {
772
  for ($n = (-1 * $element['#delta']); $n <= $element['#delta']; $n++) {
773
774
    $weights[$n] = $n;
  }
775
776
  $element['#options'] = $weights;
  $element['#type'] = 'select';
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800

  return form_render($element);
}

/**
 * Format a file upload field.
 *
 * @param $title
 *   The label for the file upload field.
 * @param $name
 *   The internal name used to refer to the field.
 * @param $size
 *   A measure of the visible size of the field (passed directly to HTML).
 * @param $description
 *   Explanatory text to display after the form item.
 * @param $required
 *   Whether the user must upload a file to the field.
 * @return
 *   A themed HTML string representing the field.
 *
 * For assistance with handling the uploaded file correctly, see the API
 * provided by file.inc.
 */
function theme_file($element) {
801
  return theme('form_element', $element['#title'], '<input type="file" class="'. _form_get_class('form-file', $element['#required'], form_get_error($element)) .'" name="'. $element['#name'] .'" id="'. form_clean_id($element['#id']) .'" size="'. $element['#size'] ."\" />\n", $element['#description'], $element['#id'], $element['#required'], form_get_error($element));
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
}
function _form_get_class($name, $required, $error) {
  return $name. ($required ? ' required' : '') . ($error ? ' error' : '');
}

/**
 * Remove invalid characters from an HTML ID attribute string
 *
 * @param $id
 *   The ID to clean
 * @return
 *   The cleaned ID
 */
function form_clean_id($id = NULL) {
  $id = str_replace('][', '-', $id);
  return $id;
}

/**
 * @} End of "defgroup form".
 */