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<?php |
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declare(strict_types=1); |
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namespace SKien\Formgenerator; |
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/** |
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* Element for rating input with stars. |
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* |
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* This element can be used to select rating between 1 ... n stars. It is based |
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* on radio-input, CSS and uses UTF-8 Symbols for the stars - no Javascript |
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* and images are needed! |
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* |
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* The count and titles of the stars can be set |
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* - in the configuration |
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* - by calling the `setTitles()` method |
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* - within the XML definition |
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* |
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* default is 5 Stars (*'terrible', 'not good', 'average', 'good', 'great'*) |
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* |
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* The submmited value is an integer between 1 ... n (representing the count of stars) |
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* |
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* @SKienImage FormStarRate.png |
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* |
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* @package Formgenerator |
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* @author Stefanius <[email protected]> |
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* @copyright MIT License - see the LICENSE file for details |
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*/ |
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class FormStarRate extends FormInput |
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{ |
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/** default count of stars */ |
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protected const STAR_COUNT = 5; |
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/** default titles for the stars */ |
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protected const STAR_TITELS = ['terrible', 'not good', 'average', 'good', 'great']; |
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/** @var array titles for the stars (from 0 ... n-1) */ |
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protected ?array $aTitles = null; |
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/** |
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* Create a star rating element. |
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* @param string $strName name AND id of the element |
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* @param int $wFlags (default: 0) |
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*/ |
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public function __construct(string $strName, int $wFlags = 0) |
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{ |
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$this->oFlags = new FormFlags($wFlags); |
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$this->strName = $strName; |
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} |
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/** |
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* {@inheritDoc} |
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* @see \SKien\Formgenerator\FormElement::fromXML() |
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* @internal |
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*/ |
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static public function fromXML(\DOMElement $oXMLElement, FormCollection $oFormParent) : ?FormElement |
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{ |
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$strName = self::getAttribString($oXMLElement, 'name', ''); |
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$wFlags = self::getAttribFlags($oXMLElement); |
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$oFormElement = new self($strName, $wFlags); |
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$oFormParent->add($oFormElement); |
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$oFormElement->readAdditionalXML($oXMLElement); |
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return $oFormElement; |
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} |
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/** |
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* {@inheritDoc} |
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* @see \SKien\Formgenerator\FormElement::readAdditionalXML() |
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* @internal |
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*/ |
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public function readAdditionalXML(\DOMElement $oXMLElement) : void |
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{ |
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parent::readAdditionalXML($oXMLElement); |
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$aTitles = $oXMLElement->getElementsByTagName('title'); |
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if ($aTitles->length > 0) { |
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$this->aTitles = []; |
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$i = 0; |
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foreach ($aTitles as $oTitle) { |
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$this->aTitles[$i++] = $oTitle->nodeValue; |
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} |
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} |
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} |
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/** |
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* We 'ask' the configuration for count and titles. |
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* $this->oFG is not available until the parent is set! |
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*/ |
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protected function onParentSet() : void |
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{ |
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if ($this->aTitles === null) { |
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$this->aTitles = $this->oFG->getConfig()->getArray('StarRate.Titles', self::STAR_TITELS); |
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} |
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} |
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/** |
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* Build the HTML-markup for the radio group. |
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* @return string |
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* @internal l |
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*/ |
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public function getHTML() : string |
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{ |
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$this->processFlags(); |
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$strStyle = ''; |
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if ($this->oFlags->isSet(FormFlags::ALIGN_CENTER)) { |
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$strStyle = 'text-align: center;'; |
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} else if ($this->oFlags->isSet(FormFlags::ALIGN_RIGHT)) { |
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$strStyle = 'text-align: right;'; |
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} |
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$strHTML = $this->buildContainerDiv($strStyle) . PHP_EOL; |
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$strHTML .= ' <div class="starrate">' . PHP_EOL; |
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$iSelect = intval($this->oFG->getData()->getValue($this->strName)); |
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if (is_array($this->aTitles)) { |
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$iStarCount = count($this->aTitles); |
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for ($iStar = $iStarCount; $iStar > 0; $iStar--) { |
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$strInputClassCSS = ($iStar == $iStarCount) ? ' class="best"' : ''; |
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$strId = $this->strName . 'Star' . $iStar; |
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$strTitle = ($this->aTitles && isset($this->aTitles[$iStar-1])) ? $this->aTitles[$iStar-1] : $iStar . ' Star'; |
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$strHTML .= ' <input' . $strInputClassCSS; |
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$strHTML .= ' type="radio" id="' . $strId . '"'; |
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$strHTML .= ($iSelect == $iStar) ? ' checked' : ''; |
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$strHTML .= ' name="' . $this->strName . '"'; |
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$strHTML .= $this->buildAttributes(); |
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$strHTML .= ' value="' . $iStar . '"/>' . PHP_EOL; |
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$strHTML .= ' <label for="' . $strId . '"'; |
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$strHTML .= ' id="' . $strId . 'Label"'; |
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$strHTML .= ' title="' . $strTitle . '"></label>' . PHP_EOL; |
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} |
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$strHTML .= ' </div>' . PHP_EOL;; |
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$strHTML .= '</div>' . PHP_EOL; |
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} |
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return $strHTML; |
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} |
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/** |
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* Set the titles for the stars. |
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* @param array $aTitles |
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*/ |
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public function setTitles(array $aTitles) : void |
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{ |
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$this->aTitles = $aTitles; |
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} |
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} |
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Stefanius67 /
Formgenerator
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.