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Select.php
575 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Classes for <select> elements |
| 4 | * |
| 5 | * PHP version 5 |
| 6 | * |
| 7 | * LICENSE: |
| 8 | * |
| 9 | * Copyright (c) 2006-2010, Alexey Borzov <avb@php.net>, |
| 10 | * Bertrand Mansion <golgote@mamasam.com> |
| 11 | * All rights reserved. |
| 12 | * |
| 13 | * Redistribution and use in source and binary forms, with or without |
| 14 | * modification, are permitted provided that the following conditions |
| 15 | * are met: |
| 16 | * |
| 17 | * * Redistributions of source code must retain the above copyright |
| 18 | * notice, this list of conditions and the following disclaimer. |
| 19 | * * Redistributions in binary form must reproduce the above copyright |
| 20 | * notice, this list of conditions and the following disclaimer in the |
| 21 | * documentation and/or other materials provided with the distribution. |
| 22 | * * The names of the authors may not be used to endorse or promote products |
| 23 | * derived from this software without specific prior written permission. |
| 24 | * |
| 25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| 26 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| 27 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 28 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| 29 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 30 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 31 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 32 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 33 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 36 | * |
| 37 | * @category HTML |
| 38 | * @package HTML_QuickForm2 |
| 39 | * @author Alexey Borzov <avb@php.net> |
| 40 | * @author Bertrand Mansion <golgote@mamasam.com> |
| 41 | * @license http://opensource.org/licenses/bsd-license.php New BSD License |
| 42 | * @version SVN: $Id: Select.php 300722 2010-06-24 10:15:52Z mansion $ |
| 43 | * @link http://pear.php.net/package/HTML_QuickForm2 |
| 44 | */ |
| 45 | |
| 46 | /** |
| 47 | * Base class for simple HTML_QuickForm2 elements |
| 48 | */ |
| 49 | // require_once 'HTML/QuickForm2/Element.php'; |
| 50 | |
| 51 | /** |
| 52 | * Implements a recursive iterator for options arrays |
| 53 | * |
| 54 | * @category HTML |
| 55 | * @package HTML_QuickForm2 |
| 56 | * @author Alexey Borzov <avb@php.net> |
| 57 | * @author Bertrand Mansion <golgote@mamasam.com> |
| 58 | * @version Release: @package_version@ |
| 59 | */ |
| 60 | class HTML_QuickForm2_Element_Select_OptionIterator extends RecursiveArrayIterator |
| 61 | implements RecursiveIterator |
| 62 | { |
| 63 | public function hasChildren(): bool |
| 64 | { |
| 65 | return $this->current() instanceof HTML_QuickForm2_Element_Select_OptionContainer; |
| 66 | } |
| 67 | |
| 68 | public function getChildren(): HTML_QuickForm2_Element_Select_OptionIterator |
| 69 | { |
| 70 | return new HTML_QuickForm2_Element_Select_OptionIterator( |
| 71 | $this->current()->getOptions() |
| 72 | ); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Collection of <option>s and <optgroup>s |
| 78 | * |
| 79 | * This class handles the output of <option> tags. The class is not intended to |
| 80 | * be used directly. |
| 81 | * |
| 82 | * @category HTML |
| 83 | * @package HTML_QuickForm2 |
| 84 | * @author Alexey Borzov <avb@php.net> |
| 85 | * @author Bertrand Mansion <golgote@mamasam.com> |
| 86 | * @version Release: @package_version@ |
| 87 | */ |
| 88 | class HTML_QuickForm2_Element_Select_OptionContainer extends HTML_Common2 |
| 89 | implements IteratorAggregate, Countable |
| 90 | { |
| 91 | /** |
| 92 | * List of options and optgroups in this container |
| 93 | * |
| 94 | * Options are stored as arrays (for performance reasons), optgroups as |
| 95 | * instances of Optgroup class. |
| 96 | * |
| 97 | * @var array |
| 98 | */ |
| 99 | protected $options = array(); |
| 100 | |
| 101 | /** |
| 102 | * Reference to parent <select>'s values |
| 103 | * @var array |
| 104 | */ |
| 105 | protected $values; |
| 106 | |
| 107 | /** |
| 108 | * Reference to parent <select>'s possible values |
| 109 | * @var array |
| 110 | */ |
| 111 | protected $possibleValues; |
| 112 | |
| 113 | |
| 114 | /** |
| 115 | * Class constructor |
| 116 | * |
| 117 | * @param array Reference to values of parent <select> element |
| 118 | * @param array Reference to possible values of parent <select> element |
| 119 | */ |
| 120 | public function __construct(&$values, &$possibleValues) |
| 121 | { |
| 122 | $this->values =& $values; |
| 123 | $this->possibleValues =& $possibleValues; |
| 124 | } |
| 125 | |
| 126 | /** |
| 127 | * Adds a new option |
| 128 | * |
| 129 | * Please note that if you pass 'selected' attribute in the $attributes |
| 130 | * parameter then this option's value will be added to <select>'s values. |
| 131 | * |
| 132 | * @param string Option text |
| 133 | * @param string 'value' attribute for <option> tag |
| 134 | * @param mixed Additional attributes for <option> tag (either as a |
| 135 | * string or as an associative array) |
| 136 | */ |
| 137 | public function addOption($text, $value, $attributes = null) |
| 138 | { |
| 139 | if (null === $attributes) { |
| 140 | $attributes = array('value' => (string)$value); |
| 141 | } else { |
| 142 | $attributes = self::prepareAttributes($attributes); |
| 143 | if (isset($attributes['selected'])) { |
| 144 | // the 'selected' attribute will be set in __toString() |
| 145 | unset($attributes['selected']); |
| 146 | if (!in_array($value, $this->values)) { |
| 147 | $this->values[] = $value; |
| 148 | } |
| 149 | } |
| 150 | $attributes['value'] = (string)$value; |
| 151 | } |
| 152 | if (!isset($attributes['disabled'])) { |
| 153 | $this->possibleValues[(string)$value] = true; |
| 154 | } |
| 155 | $this->options[] = array('text' => $text, 'attr' => $attributes); |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * Adds a new optgroup |
| 160 | * |
| 161 | * @param string 'label' attribute for optgroup tag |
| 162 | * @param mixed Additional attributes for <optgroup> tag (either as a |
| 163 | * string or as an associative array) |
| 164 | * @return HTML_QuickForm2_Element_Select_Optgroup |
| 165 | */ |
| 166 | public function addOptgroup($label, $attributes = null) |
| 167 | { |
| 168 | $optgroup = new HTML_QuickForm2_Element_Select_Optgroup( |
| 169 | $this->values, $this->possibleValues, |
| 170 | $label, $attributes |
| 171 | ); |
| 172 | $this->options[] = $optgroup; |
| 173 | return $optgroup; |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * Returns an array of contained options |
| 178 | * |
| 179 | * @return array |
| 180 | */ |
| 181 | public function getOptions() |
| 182 | { |
| 183 | return $this->options; |
| 184 | } |
| 185 | |
| 186 | public function __toString() |
| 187 | { |
| 188 | $indentLvl = $this->getIndentLevel(); |
| 189 | $indent = $this->getIndent() . self::getOption('indent'); |
| 190 | $linebreak = self::getOption('linebreak'); |
| 191 | $html = ''; |
| 192 | $strValues = array_map('strval', $this->values); |
| 193 | foreach ($this->options as $option) { |
| 194 | if (is_array($option)) { |
| 195 | if (in_array($option['attr']['value'], $strValues, true)) { |
| 196 | $option['attr']['selected'] = 'selected'; |
| 197 | } |
| 198 | $html .= $indent . '<option' . |
| 199 | self::getAttributesString($option['attr']) . |
| 200 | '>' . $option['text'] . '</option>' . $linebreak; |
| 201 | } elseif ($option instanceof HTML_QuickForm2_Element_Select_OptionContainer) { |
| 202 | $option->setIndentLevel($indentLvl + 1); |
| 203 | $html .= $option->__toString(); |
| 204 | } |
| 205 | } |
| 206 | return $html; |
| 207 | } |
| 208 | |
| 209 | /** |
| 210 | * Returns an iterator over contained elements |
| 211 | * |
| 212 | * @return HTML_QuickForm2_Element_Select_OptionIterator |
| 213 | */ |
| 214 | public function getIterator(): HTML_QuickForm2_Element_Select_OptionIterator |
| 215 | { |
| 216 | return new HTML_QuickForm2_Element_Select_OptionIterator($this->options); |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * Returns a recursive iterator over contained elements |
| 221 | * |
| 222 | * @return RecursiveIteratorIterator |
| 223 | */ |
| 224 | public function getRecursiveIterator(): RecursiveIteratorIterator |
| 225 | { |
| 226 | return new RecursiveIteratorIterator( |
| 227 | new HTML_QuickForm2_Element_Select_OptionIterator($this->options), |
| 228 | RecursiveIteratorIterator::SELF_FIRST |
| 229 | ); |
| 230 | } |
| 231 | |
| 232 | /** |
| 233 | * Returns the number of options in the container |
| 234 | * |
| 235 | * @return int |
| 236 | */ |
| 237 | public function count(): int |
| 238 | { |
| 239 | return count($this->options); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | |
| 244 | /** |
| 245 | * Class representing an <optgroup> tag |
| 246 | * |
| 247 | * Do not instantiate this class yourself, use |
| 248 | * {@link HTML_QuickForm2_Element_Select::addOptgroup()} method |
| 249 | * |
| 250 | * @category HTML |
| 251 | * @package HTML_QuickForm2 |
| 252 | * @author Alexey Borzov <avb@php.net> |
| 253 | * @author Bertrand Mansion <golgote@mamasam.com> |
| 254 | * @version Release: @package_version@ |
| 255 | */ |
| 256 | class HTML_QuickForm2_Element_Select_Optgroup |
| 257 | extends HTML_QuickForm2_Element_Select_OptionContainer |
| 258 | { |
| 259 | /** |
| 260 | * Class constructor |
| 261 | * |
| 262 | * @param array Reference to values of parent <select> element |
| 263 | * @param array Reference to possible values of parent <select> element |
| 264 | * @param string 'label' attribute for optgroup tag |
| 265 | * @param mixed Additional attributes for <optgroup> tag (either as a |
| 266 | * string or as an associative array) |
| 267 | */ |
| 268 | public function __construct(&$values, &$possibleValues, $label, $attributes = null) |
| 269 | { |
| 270 | parent::__construct($values, $possibleValues); |
| 271 | $this->setAttributes($attributes); |
| 272 | $this->attributes['label'] = (string)$label; |
| 273 | } |
| 274 | |
| 275 | public function __toString() |
| 276 | { |
| 277 | $indent = $this->getIndent(); |
| 278 | $linebreak = self::getOption('linebreak'); |
| 279 | return $indent . '<optgroup' . $this->getAttributes(true) . '>' . |
| 280 | $linebreak . parent::__toString() . $indent . '</optgroup>' . $linebreak; |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | |
| 285 | /** |
| 286 | * Class representing a <select> element |
| 287 | * |
| 288 | * @category HTML |
| 289 | * @package HTML_QuickForm2 |
| 290 | * @author Alexey Borzov <avb@php.net> |
| 291 | * @author Bertrand Mansion <golgote@mamasam.com> |
| 292 | * @version Release: @package_version@ |
| 293 | */ |
| 294 | class HTML_QuickForm2_Element_Select extends HTML_QuickForm2_Element |
| 295 | { |
| 296 | protected $persistent = true; |
| 297 | |
| 298 | /** |
| 299 | * Values for the select element (i.e. values of the selected options) |
| 300 | * @var array |
| 301 | */ |
| 302 | protected $values = array(); |
| 303 | |
| 304 | /** |
| 305 | * Possible values for select elements |
| 306 | * |
| 307 | * A value is considered possible if it is present as a value attribute of |
| 308 | * some option and that option is not disabled. |
| 309 | * @var array |
| 310 | */ |
| 311 | protected $possibleValues = array(); |
| 312 | |
| 313 | |
| 314 | /** |
| 315 | * Object containing options for the <select> element |
| 316 | * @var HTML_QuickForm2_Element_Select_OptionContainer |
| 317 | */ |
| 318 | protected $optionContainer; |
| 319 | |
| 320 | /** |
| 321 | * Enable intrinsic validation by default |
| 322 | * @var array |
| 323 | */ |
| 324 | protected $data = array('intrinsic_validation' => true); |
| 325 | |
| 326 | /** |
| 327 | * Class constructor |
| 328 | * |
| 329 | * Select element can understand the following keys in $data parameter: |
| 330 | * - 'options': data to populate element's options with. Passed to |
| 331 | * {@link loadOptions()} method. |
| 332 | * - 'intrinsic_validation': setting this to false will disable |
| 333 | * that validation, {@link getValue()} will then return all submit |
| 334 | * values, not just those corresponding to options present in the |
| 335 | * element. May be useful in AJAX scenarios. |
| 336 | * |
| 337 | * @param string Element name |
| 338 | * @param mixed Attributes (either a string or an array) |
| 339 | * @param array Additional element data |
| 340 | * @throws HTML_QuickForm2_InvalidArgumentException if junk is given in $options |
| 341 | */ |
| 342 | public function __construct($name = null, $attributes = null, array $data = array()) |
| 343 | { |
| 344 | $options = isset($data['options'])? $data['options']: array(); |
| 345 | unset($data['options']); |
| 346 | parent::__construct($name, $attributes, $data); |
| 347 | $this->loadOptions($options); |
| 348 | } |
| 349 | |
| 350 | public function getType() |
| 351 | { |
| 352 | return 'select'; |
| 353 | } |
| 354 | |
| 355 | public function __toString() |
| 356 | { |
| 357 | if ($this->frozen) { |
| 358 | return $this->getFrozenHtml(); |
| 359 | } else { |
| 360 | if (empty($this->attributes['multiple'])) { |
| 361 | $attrString = $this->getAttributes(true); |
| 362 | } else { |
| 363 | $this->attributes['name'] .= '[]'; |
| 364 | $attrString = $this->getAttributes(true); |
| 365 | $this->attributes['name'] = substr($this->attributes['name'], 0, -2); |
| 366 | } |
| 367 | $indent = $this->getIndent(); |
| 368 | return $indent . '<select' . $attrString . '>' . |
| 369 | self::getOption('linebreak') . |
| 370 | $this->optionContainer->__toString() . |
| 371 | $indent . '</select>'; |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | protected function getFrozenHtml() |
| 376 | { |
| 377 | if (null === ($value = $this->getValue())) { |
| 378 | return ' '; |
| 379 | } |
| 380 | $valueHash = is_array($value)? array_flip($value): array($value => true); |
| 381 | $options = array(); |
| 382 | foreach ($this->optionContainer->getRecursiveIterator() as $child) { |
| 383 | if (is_array($child) && isset($valueHash[$child['attr']['value']]) && |
| 384 | empty($child['attr']['disabled'])) |
| 385 | { |
| 386 | $options[] = $child['text']; |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | $html = implode('<br />', $options); |
| 391 | if ($this->persistent) { |
| 392 | $name = $this->attributes['name'] . |
| 393 | (empty($this->attributes['multiple'])? '': '[]'); |
| 394 | // Only use id attribute if doing single hidden input |
| 395 | $idAttr = (1 == count($valueHash))? array('id' => $this->getId()): array(); |
| 396 | foreach ($valueHash as $key => $item) { |
| 397 | $html .= '<input type="hidden"' . self::getAttributesString(array( |
| 398 | 'name' => $name, |
| 399 | 'value' => $key |
| 400 | ) + $idAttr) . ' />'; |
| 401 | } |
| 402 | } |
| 403 | return $html; |
| 404 | } |
| 405 | |
| 406 | /** |
| 407 | * Returns the value of the <select> element |
| 408 | * |
| 409 | * Please note that the returned value may not necessarily be equal to that |
| 410 | * passed to {@link setValue()}. It passes "intrinsic validation" confirming |
| 411 | * that such value could possibly be submitted by this <select> element. |
| 412 | * Specifically, this method will return null if the elements "disabled" |
| 413 | * attribute is set, it will not return values if there are no options having |
| 414 | * such a "value" attribute or if such options' "disabled" attribute is set. |
| 415 | * It will also only return a scalar value for single selects, mimicking |
| 416 | * the common browsers' behaviour. |
| 417 | * |
| 418 | * @return mixed "value" attribute of selected option in case of single |
| 419 | * select, array of selected options' "value" attributes in |
| 420 | * case of multiple selects, null if no options selected |
| 421 | */ |
| 422 | public function getValue() |
| 423 | { |
| 424 | if (!empty($this->attributes['disabled']) || 0 == count($this->values) |
| 425 | || ($this->data['intrinsic_validation'] |
| 426 | && (0 == count($this->optionContainer) || 0 == count($this->possibleValues))) |
| 427 | ) { |
| 428 | return null; |
| 429 | } |
| 430 | |
| 431 | $values = array(); |
| 432 | foreach ($this->values as $value) { |
| 433 | if (!$this->data['intrinsic_validation'] || !empty($this->possibleValues[$value])) { |
| 434 | $values[] = $value; |
| 435 | } |
| 436 | } |
| 437 | if (0 == count($values)) { |
| 438 | return null; |
| 439 | } elseif (!empty($this->attributes['multiple'])) { |
| 440 | return $this->applyFilters($values); |
| 441 | } elseif (1 == count($values)) { |
| 442 | return $this->applyFilters($values[0]); |
| 443 | } else { |
| 444 | // The <select> is not multiple, but several options are to be |
| 445 | // selected. At least IE and Mozilla select the last selected |
| 446 | // option in this case, we should do the same |
| 447 | foreach ($this->optionContainer->getRecursiveIterator() as $child) { |
| 448 | if (is_array($child) && in_array($child['attr']['value'], $values)) { |
| 449 | $lastValue = $child['attr']['value']; |
| 450 | } |
| 451 | } |
| 452 | return $this->applyFilters($lastValue); |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | public function setValue($value) |
| 457 | { |
| 458 | if (is_array($value)) { |
| 459 | $this->values = array_values($value); |
| 460 | } else { |
| 461 | $this->values = array($value); |
| 462 | } |
| 463 | return $this; |
| 464 | } |
| 465 | |
| 466 | /** |
| 467 | * Loads <option>s (and <optgroup>s) for select element |
| 468 | * |
| 469 | * The method expects a array of options and optgroups: |
| 470 | * <pre> |
| 471 | * array( |
| 472 | * 'option value 1' => 'option text 1', |
| 473 | * ... |
| 474 | * 'option value N' => 'option text N', |
| 475 | * 'optgroup label 1' => array( |
| 476 | * 'option value' => 'option text', |
| 477 | * ... |
| 478 | * ), |
| 479 | * ... |
| 480 | * ) |
| 481 | * </pre> |
| 482 | * If value is a scalar, then array key is treated as "value" attribute of |
| 483 | * <option> and value as this <option>'s text. If value is an array, then |
| 484 | * key is treated as a "label" attribute of <optgroup> and value as an |
| 485 | * array of <option>s for this <optgroup>. |
| 486 | * |
| 487 | * If you need to specify additional attributes for <option> and <optgroup> |
| 488 | * tags, then you need to use {@link addOption()} and {@link addOptgroup()} |
| 489 | * methods instead of this one. |
| 490 | * |
| 491 | * @param array |
| 492 | * @throws HTML_QuickForm2_InvalidArgumentException if junk is given in $options |
| 493 | * @return HTML_QuickForm2_Element_Select |
| 494 | */ |
| 495 | public function loadOptions(array $options) |
| 496 | { |
| 497 | $this->possibleValues = array(); |
| 498 | $this->optionContainer = new HTML_QuickForm2_Element_Select_OptionContainer( |
| 499 | $this->values, $this->possibleValues |
| 500 | ); |
| 501 | $this->loadOptionsFromArray($this->optionContainer, $options); |
| 502 | return $this; |
| 503 | } |
| 504 | |
| 505 | |
| 506 | /** |
| 507 | * Adds options from given array into given container |
| 508 | * |
| 509 | * @param HTML_QuickForm2_Element_Select_OptionContainer options will be |
| 510 | * added to this container |
| 511 | * @param array options array |
| 512 | */ |
| 513 | protected function loadOptionsFromArray( |
| 514 | HTML_QuickForm2_Element_Select_OptionContainer $container, $options |
| 515 | ) |
| 516 | { |
| 517 | foreach ($options as $key => $value) { |
| 518 | if (is_array($value)) { |
| 519 | $optgroup = $container->addOptgroup($key); |
| 520 | $this->loadOptionsFromArray($optgroup, $value); |
| 521 | } else { |
| 522 | $container->addOption($value, $key); |
| 523 | } |
| 524 | } |
| 525 | } |
| 526 | |
| 527 | |
| 528 | /** |
| 529 | * Adds a new option |
| 530 | * |
| 531 | * Please note that if you pass 'selected' attribute in the $attributes |
| 532 | * parameter then this option's value will be added to <select>'s values. |
| 533 | * |
| 534 | * @param string Option text |
| 535 | * @param string 'value' attribute for <option> tag |
| 536 | * @param mixed Additional attributes for <option> tag (either as a |
| 537 | * string or as an associative array) |
| 538 | */ |
| 539 | public function addOption($text, $value, $attributes = null) |
| 540 | { |
| 541 | return $this->optionContainer->addOption($text, $value, $attributes); |
| 542 | } |
| 543 | |
| 544 | /** |
| 545 | * Adds a new optgroup |
| 546 | * |
| 547 | * @param string 'label' attribute for optgroup tag |
| 548 | * @param mixed Additional attributes for <optgroup> tag (either as a |
| 549 | * string or as an associative array) |
| 550 | * @return HTML_QuickForm2_Element_Select_Optgroup |
| 551 | */ |
| 552 | public function addOptgroup($label, $attributes = null) |
| 553 | { |
| 554 | return $this->optionContainer->addOptgroup($label, $attributes); |
| 555 | } |
| 556 | |
| 557 | public function updateValue() |
| 558 | { |
| 559 | if (!$this->getAttribute('multiple')) { |
| 560 | parent::updateValue(); |
| 561 | } else { |
| 562 | $name = $this->getName(); |
| 563 | foreach ($this->getDataSources() as $ds) { |
| 564 | if (null !== ($value = $ds->getValue($name)) || |
| 565 | $ds instanceof HTML_QuickForm2_DataSource_Submit) |
| 566 | { |
| 567 | $this->setValue(null === $value? array(): $value); |
| 568 | return; |
| 569 | } |
| 570 | } |
| 571 | } |
| 572 | } |
| 573 | } |
| 574 | ?> |
| 575 |