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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <nick@popphp.org> |
| 8 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Form\Element; |
| 16 | |
| 17 | use Pop\Dom\Child; |
| 18 | use Pop\Validator; |
| 19 | use Pop\Form\ValidatorEvaluationTrait; |
| 20 | |
| 21 | /** |
| 22 | * Abstract form element class |
| 23 | * |
| 24 | * @category Pop |
| 25 | * @package Pop\Form |
| 26 | * @author Nick Sagona, III <nick@popphp.org> |
| 27 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 28 | * @license https://www.popphp.org/license New BSD License |
| 29 | * @version 5.0.0 |
| 30 | */ |
| 31 | abstract class AbstractElement extends Child implements ElementInterface |
| 32 | { |
| 33 | |
| 34 | use ValidatorEvaluationTrait; |
| 35 | |
| 36 | /** |
| 37 | * Element name |
| 38 | * @var ?string |
| 39 | */ |
| 40 | protected ?string $name = null; |
| 41 | |
| 42 | /** |
| 43 | * Form element label |
| 44 | * @var ?string |
| 45 | */ |
| 46 | protected ?string $label = null; |
| 47 | |
| 48 | /** |
| 49 | * Form element hint |
| 50 | * @var ?string |
| 51 | */ |
| 52 | protected ?string $hint = null; |
| 53 | |
| 54 | /** |
| 55 | * Form element label attributes |
| 56 | * @var array |
| 57 | */ |
| 58 | protected array $labelAttributes = []; |
| 59 | |
| 60 | /** |
| 61 | * Form element hint attributes |
| 62 | * @var array |
| 63 | */ |
| 64 | protected array $hintAttributes = []; |
| 65 | |
| 66 | /** |
| 67 | * Form element prepend contents |
| 68 | * @var ?string |
| 69 | */ |
| 70 | protected ?string $prepend = null; |
| 71 | |
| 72 | /** |
| 73 | * Form element append contents |
| 74 | * @var ?string |
| 75 | */ |
| 76 | protected ?string $append = null; |
| 77 | |
| 78 | /** |
| 79 | * Form element required property |
| 80 | * @var bool |
| 81 | */ |
| 82 | protected bool $required = false; |
| 83 | |
| 84 | /** |
| 85 | * Form element required message |
| 86 | * @var ?string |
| 87 | */ |
| 88 | protected ?string $requiredMessage = null; |
| 89 | |
| 90 | /** |
| 91 | * Form element disabled property |
| 92 | * @var bool |
| 93 | */ |
| 94 | protected bool $disabled = false; |
| 95 | |
| 96 | /** |
| 97 | * Form element readonly property |
| 98 | * @var bool |
| 99 | */ |
| 100 | protected bool $readonly = false; |
| 101 | |
| 102 | /** |
| 103 | * Form element validators |
| 104 | * @var array |
| 105 | */ |
| 106 | protected array $validators = []; |
| 107 | |
| 108 | /** |
| 109 | * Form element error display position |
| 110 | * @var bool |
| 111 | */ |
| 112 | protected bool $errorPre = false; |
| 113 | |
| 114 | /** |
| 115 | * Form element errors |
| 116 | * @var array |
| 117 | */ |
| 118 | protected array $errors = []; |
| 119 | |
| 120 | /** |
| 121 | * Constructor |
| 122 | * |
| 123 | * Instantiate the form element object |
| 124 | * |
| 125 | * @param string $name |
| 126 | * @param ?string $value |
| 127 | * @param array $options |
| 128 | */ |
| 129 | public function __construct(string $name, ?string $value = null, array $options = []) |
| 130 | { |
| 131 | parent::__construct($name, $value, $options); |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * Set the name of the form element object |
| 136 | * |
| 137 | * @param string $name |
| 138 | * @return AbstractElement |
| 139 | */ |
| 140 | public function setName(string $name): AbstractElement |
| 141 | { |
| 142 | $this->name = $name; |
| 143 | return $this; |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Set the value of the form element |
| 148 | * |
| 149 | * @param mixed $value |
| 150 | * @return AbstractElement |
| 151 | */ |
| 152 | abstract public function setValue(mixed $value = null): AbstractElement; |
| 153 | |
| 154 | /** |
| 155 | * Reset the value of the form element |
| 156 | * |
| 157 | * @return AbstractElement |
| 158 | */ |
| 159 | abstract public function resetValue(): AbstractElement; |
| 160 | |
| 161 | /** |
| 162 | * Set the label of the form element object |
| 163 | * |
| 164 | * @param string $label |
| 165 | * @return AbstractElement |
| 166 | */ |
| 167 | public function setLabel(string $label): AbstractElement |
| 168 | { |
| 169 | $this->label = $label; |
| 170 | return $this; |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Set the hint of the form element object |
| 175 | * |
| 176 | * @param string $hint |
| 177 | * @return AbstractElement |
| 178 | */ |
| 179 | public function setHint(string $hint): AbstractElement |
| 180 | { |
| 181 | $this->hint = $hint; |
| 182 | return $this; |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * Set the prepend contents of the form element object |
| 187 | * |
| 188 | * @param string $prepend |
| 189 | * @return AbstractElement |
| 190 | */ |
| 191 | public function setPrepend(string $prepend): AbstractElement |
| 192 | { |
| 193 | $this->prepend = $prepend; |
| 194 | return $this; |
| 195 | } |
| 196 | |
| 197 | /** |
| 198 | * Set the append contents of the form element object |
| 199 | * |
| 200 | * @param string $append |
| 201 | * @return AbstractElement |
| 202 | */ |
| 203 | public function setAppend(string $append): AbstractElement |
| 204 | { |
| 205 | $this->append = $append; |
| 206 | return $this; |
| 207 | } |
| 208 | |
| 209 | /** |
| 210 | * Set an attribute of the label of the form element object |
| 211 | * |
| 212 | * @param string $a |
| 213 | * @param string $v |
| 214 | * @return AbstractElement |
| 215 | */ |
| 216 | public function setLabelAttribute(string $a, string $v): AbstractElement |
| 217 | { |
| 218 | $this->labelAttributes[$a] = $v; |
| 219 | return $this; |
| 220 | } |
| 221 | |
| 222 | /** |
| 223 | * Set the attributes of the label of the form element object |
| 224 | * |
| 225 | * @param array $attribs |
| 226 | * @return AbstractElement |
| 227 | */ |
| 228 | public function setLabelAttributes(array $attribs): AbstractElement |
| 229 | { |
| 230 | foreach ($attribs as $a => $v) { |
| 231 | $this->setLabelAttribute($a, $v); |
| 232 | } |
| 233 | return $this; |
| 234 | } |
| 235 | |
| 236 | /** |
| 237 | * Set an attribute of the hint of the form element object |
| 238 | * |
| 239 | * @param string $a |
| 240 | * @param string $v |
| 241 | * @return AbstractElement |
| 242 | */ |
| 243 | public function setHintAttribute(string $a, string $v): AbstractElement |
| 244 | { |
| 245 | $this->hintAttributes[$a] = $v; |
| 246 | return $this; |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Set the attributes of the hint of the form element object |
| 251 | * |
| 252 | * @param array $attribs |
| 253 | * @return AbstractElement |
| 254 | */ |
| 255 | public function setHintAttributes(array $attribs): AbstractElement |
| 256 | { |
| 257 | foreach ($attribs as $a => $v) { |
| 258 | $this->setHintAttribute($a, $v); |
| 259 | } |
| 260 | return $this; |
| 261 | } |
| 262 | |
| 263 | /** |
| 264 | * Set whether the form element is required |
| 265 | * |
| 266 | * @param bool $required |
| 267 | * @param ?string $requiredMessage |
| 268 | * @return AbstractElement |
| 269 | */ |
| 270 | public function setRequired(bool $required, ?string $requiredMessage = 'This field is required.'): AbstractElement |
| 271 | { |
| 272 | $this->required = $required; |
| 273 | |
| 274 | if (!empty($requiredMessage)) { |
| 275 | $this->setRequiredMessage($requiredMessage); |
| 276 | } |
| 277 | |
| 278 | return $this; |
| 279 | } |
| 280 | |
| 281 | /** |
| 282 | * Set the form element is required message |
| 283 | * |
| 284 | * @param string $requiredMessage |
| 285 | * @return AbstractElement |
| 286 | */ |
| 287 | public function setRequiredMessage(string $requiredMessage): AbstractElement |
| 288 | { |
| 289 | $this->requiredMessage = $requiredMessage; |
| 290 | return $this; |
| 291 | } |
| 292 | |
| 293 | /** |
| 294 | * Set whether the form element is disabled |
| 295 | * |
| 296 | * @param bool $disabled |
| 297 | * @return AbstractElement |
| 298 | */ |
| 299 | public function setDisabled(bool $disabled): AbstractElement |
| 300 | { |
| 301 | $this->disabled = $disabled; |
| 302 | return $this; |
| 303 | } |
| 304 | |
| 305 | /** |
| 306 | * Set whether the form element is readonly |
| 307 | * |
| 308 | * @param bool $readonly |
| 309 | * @return AbstractElement |
| 310 | */ |
| 311 | public function setReadonly(bool $readonly): AbstractElement |
| 312 | { |
| 313 | $this->readonly = $readonly; |
| 314 | return $this; |
| 315 | } |
| 316 | |
| 317 | /** |
| 318 | * Set error pre-display |
| 319 | * |
| 320 | * @param bool $pre |
| 321 | * @return AbstractElement |
| 322 | */ |
| 323 | public function setErrorPre(bool $pre): AbstractElement |
| 324 | { |
| 325 | $this->errorPre = $pre; |
| 326 | return $this; |
| 327 | } |
| 328 | |
| 329 | /** |
| 330 | * Determine if error to display before the element |
| 331 | * |
| 332 | * @return bool |
| 333 | */ |
| 334 | public function isErrorPre(): bool |
| 335 | { |
| 336 | return $this->errorPre; |
| 337 | } |
| 338 | |
| 339 | /** |
| 340 | * Set validators |
| 341 | * |
| 342 | * @param array $validators |
| 343 | * @return AbstractElement |
| 344 | */ |
| 345 | public function setValidators(array $validators = []): AbstractElement |
| 346 | { |
| 347 | $this->validators = $validators; |
| 348 | return $this; |
| 349 | } |
| 350 | |
| 351 | /** |
| 352 | * Clear errors |
| 353 | * |
| 354 | * @return AbstractElement |
| 355 | */ |
| 356 | public function clearErrors(): AbstractElement |
| 357 | { |
| 358 | $this->errors = []; |
| 359 | return $this; |
| 360 | } |
| 361 | |
| 362 | /** |
| 363 | * Get form element object name |
| 364 | * |
| 365 | * @return ?string |
| 366 | */ |
| 367 | public function getName(): ?string |
| 368 | { |
| 369 | return $this->name; |
| 370 | } |
| 371 | |
| 372 | /** |
| 373 | * Get form element object type |
| 374 | * |
| 375 | * @return ?string |
| 376 | */ |
| 377 | abstract public function getType() : ?string; |
| 378 | |
| 379 | /** |
| 380 | * Get form element value |
| 381 | * |
| 382 | * @return mixed |
| 383 | */ |
| 384 | abstract public function getValue(): mixed; |
| 385 | |
| 386 | /** |
| 387 | * Get form element object label |
| 388 | * |
| 389 | * @return ?string |
| 390 | */ |
| 391 | public function getLabel(): ?string |
| 392 | { |
| 393 | return $this->label; |
| 394 | } |
| 395 | |
| 396 | /** |
| 397 | * Determine if form element has a label |
| 398 | * |
| 399 | * @return bool |
| 400 | */ |
| 401 | public function hasLabel(): bool |
| 402 | { |
| 403 | return !empty($this->label); |
| 404 | } |
| 405 | |
| 406 | /** |
| 407 | * Get form element object hint |
| 408 | * |
| 409 | * @return ?string |
| 410 | */ |
| 411 | public function getHint(): ?string |
| 412 | { |
| 413 | return $this->hint; |
| 414 | } |
| 415 | |
| 416 | /** |
| 417 | * Determine if form element has a hint |
| 418 | * |
| 419 | * @return bool |
| 420 | */ |
| 421 | public function hasHint(): bool |
| 422 | { |
| 423 | return !empty($this->hint); |
| 424 | } |
| 425 | |
| 426 | /** |
| 427 | * Get form element object prepend contents |
| 428 | * |
| 429 | * @return ?string |
| 430 | */ |
| 431 | public function getPrepend(): ?string |
| 432 | { |
| 433 | return $this->prepend; |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * Determine if form element has prepend content |
| 438 | * |
| 439 | * @return bool |
| 440 | */ |
| 441 | public function hasPrepend(): bool |
| 442 | { |
| 443 | return !empty($this->prepend); |
| 444 | } |
| 445 | |
| 446 | /** |
| 447 | * Get form element object append contents |
| 448 | * |
| 449 | * @return ?string |
| 450 | */ |
| 451 | public function getAppend(): ?string |
| 452 | { |
| 453 | return $this->append; |
| 454 | } |
| 455 | |
| 456 | /** |
| 457 | * Determine if form element has append content |
| 458 | * |
| 459 | * @return bool |
| 460 | */ |
| 461 | public function hasAppend(): bool |
| 462 | { |
| 463 | return !empty($this->append); |
| 464 | } |
| 465 | |
| 466 | /** |
| 467 | * Get the attributes of the form element object label |
| 468 | * |
| 469 | * @return array |
| 470 | */ |
| 471 | public function getLabelAttributes(): array |
| 472 | { |
| 473 | return $this->labelAttributes; |
| 474 | } |
| 475 | |
| 476 | /** |
| 477 | * Determine if form element has label attributes |
| 478 | * |
| 479 | * @return bool |
| 480 | */ |
| 481 | public function hasLabelAttributes(): bool |
| 482 | { |
| 483 | return !empty($this->labelAttributes); |
| 484 | } |
| 485 | |
| 486 | /** |
| 487 | * Get the attributes of the form element object hint |
| 488 | * |
| 489 | * @return array |
| 490 | */ |
| 491 | public function getHintAttributes(): array |
| 492 | { |
| 493 | return $this->hintAttributes; |
| 494 | } |
| 495 | |
| 496 | /** |
| 497 | * Determine if form element has hint attributes |
| 498 | * |
| 499 | * @return bool |
| 500 | */ |
| 501 | public function hasHintAttributes(): bool |
| 502 | { |
| 503 | return !empty($this->hintAttributes); |
| 504 | } |
| 505 | |
| 506 | /** |
| 507 | * Get validators |
| 508 | * |
| 509 | * @return array |
| 510 | */ |
| 511 | public function getValidators(): array |
| 512 | { |
| 513 | return $this->validators; |
| 514 | } |
| 515 | |
| 516 | /** |
| 517 | * Determine if form element has validators |
| 518 | * |
| 519 | * @return bool |
| 520 | */ |
| 521 | public function hasValidators(): bool |
| 522 | { |
| 523 | return !empty($this->validators); |
| 524 | } |
| 525 | |
| 526 | /** |
| 527 | * Get whether the form element object is required |
| 528 | * |
| 529 | * @return bool |
| 530 | */ |
| 531 | public function isRequired(): bool |
| 532 | { |
| 533 | return $this->required; |
| 534 | } |
| 535 | |
| 536 | /** |
| 537 | * Does the form element object have a required message |
| 538 | * |
| 539 | * @return bool |
| 540 | */ |
| 541 | public function hasRequiredMessage(): bool |
| 542 | { |
| 543 | return !empty($this->requiredMessage); |
| 544 | } |
| 545 | |
| 546 | /** |
| 547 | * Get the form element object required message |
| 548 | * |
| 549 | * @return ?string |
| 550 | */ |
| 551 | public function getRequiredMessage(): ?string |
| 552 | { |
| 553 | return $this->requiredMessage; |
| 554 | } |
| 555 | |
| 556 | /** |
| 557 | * Get whether the form element object is disabled |
| 558 | * |
| 559 | * @return bool |
| 560 | */ |
| 561 | public function isDisabled(): bool |
| 562 | { |
| 563 | return $this->disabled; |
| 564 | } |
| 565 | |
| 566 | /** |
| 567 | * Get whether the form element object is readonly |
| 568 | * |
| 569 | * @return bool |
| 570 | */ |
| 571 | public function isReadonly(): bool |
| 572 | { |
| 573 | return $this->readonly; |
| 574 | } |
| 575 | |
| 576 | /** |
| 577 | * Get whether the form element object is a button |
| 578 | * |
| 579 | * @return bool |
| 580 | */ |
| 581 | public function isButton(): bool |
| 582 | { |
| 583 | return (($this instanceof Button) || ($this instanceof Input\Button) || |
| 584 | ($this instanceof Input\Submit) || ($this instanceof Input\Reset)); |
| 585 | } |
| 586 | |
| 587 | /** |
| 588 | * Get form element object errors |
| 589 | * |
| 590 | * @return array |
| 591 | */ |
| 592 | public function getErrors(): array |
| 593 | { |
| 594 | return $this->errors; |
| 595 | } |
| 596 | |
| 597 | /** |
| 598 | * Get if form element object has errors |
| 599 | * |
| 600 | * @return bool |
| 601 | */ |
| 602 | public function hasErrors(): bool |
| 603 | { |
| 604 | return (count($this->errors) > 0); |
| 605 | } |
| 606 | |
| 607 | /** |
| 608 | * Add a validator the form element |
| 609 | * |
| 610 | * @param mixed $validator |
| 611 | * @throws Exception |
| 612 | * @return AbstractElement |
| 613 | */ |
| 614 | public function addValidator(mixed $validator): AbstractElement |
| 615 | { |
| 616 | if (!($validator instanceof \Pop\Validator\AbstractValidator) && !is_callable($validator)) { |
| 617 | throw new Exception('Error: The validator must be an instance of Pop\Validator\AbstractValidator or a callable object.'); |
| 618 | } |
| 619 | $this->validators[] = $validator; |
| 620 | return $this; |
| 621 | } |
| 622 | |
| 623 | /** |
| 624 | * Add multiple validators the form element |
| 625 | * |
| 626 | * @param array $validators |
| 627 | * @throws Exception |
| 628 | * @return AbstractElement |
| 629 | */ |
| 630 | public function addValidators(array $validators): AbstractElement |
| 631 | { |
| 632 | foreach ($validators as $validator) { |
| 633 | $this->addValidator($validator); |
| 634 | } |
| 635 | return $this; |
| 636 | } |
| 637 | |
| 638 | /** |
| 639 | * Validate the value |
| 640 | * |
| 641 | * @param mixed $value |
| 642 | * @param array $formValues |
| 643 | * @return void |
| 644 | */ |
| 645 | public function validateValue(mixed $value, array $formValues = []): void |
| 646 | { |
| 647 | // Check field validators |
| 648 | if (count($this->validators) > 0) { |
| 649 | foreach ($this->validators as $validator) { |
| 650 | foreach ($this->evaluateValidator($validator, $value, $formValues) as $message) { |
| 651 | if (!in_array($message, $this->errors)) { |
| 652 | $this->errors[] = $message; |
| 653 | } |
| 654 | } |
| 655 | } |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | /** |
| 660 | * Validate the value by callable |
| 661 | * |
| 662 | * @param callable $validator |
| 663 | * @param mixed $value |
| 664 | * @param array $formValues |
| 665 | * @return void |
| 666 | */ |
| 667 | public function validateCallable(callable $validator, mixed $value, array $formValues = []): void |
| 668 | { |
| 669 | foreach ($this->evaluateValidator($validator, $value, $formValues) as $message) { |
| 670 | if (!in_array($message, $this->errors)) { |
| 671 | $this->errors[] = $message; |
| 672 | } |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | /** |
| 677 | * Validate the form element object |
| 678 | * |
| 679 | * @param array $formValues |
| 680 | * @return bool |
| 681 | */ |
| 682 | abstract public function validate(array $formValues = []): bool; |
| 683 | |
| 684 | /** |
| 685 | * Print form element |
| 686 | * |
| 687 | * @return string |
| 688 | */ |
| 689 | public function __toString(): string |
| 690 | { |
| 691 | return $this->render(); |
| 692 | } |
| 693 | |
| 694 | } |