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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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* HTML select element. |
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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 FormSelect extends FormInput |
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{ |
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/** @var array available select option */ |
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protected ?array $aOptions = null; |
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/** @var string text for selectbutton */ |
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protected string $strSelectBtnText; |
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/** |
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* Create HTML select element. |
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* If $wFlags contain SELECT_BTN property, the display of the selected |
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* value is replaced by a button with text specified with setSelectBtnText. |
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* (default text: 'Auswählen') |
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* @see FormSelect::setSelectBtnText() |
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* |
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* @param string $strName name and id |
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* @param int $iSize size of list. 1 => dropdown list (default: 1) |
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* @param int $wFlags flags (default: 0) |
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*/ |
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public function __construct(string $strName, int $iSize = 1, int $wFlags = 0) |
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{ |
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parent::__construct($strName, $iSize, $wFlags); |
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if ($this->oFlags->isSet(FormFlags::SELECT_BTN)) { |
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$this->strClass .= ' sbSelect'; |
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if ($iSize != 1) { |
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trigger_error('SELECT_BTN must have size of 1!', E_USER_WARNING); |
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} |
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} |
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$this->strSelectBtnText = 'Auswählen'; |
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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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*/ |
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static public function fromXML(\DOMElement $oXMLElement, FormCollection $oFormParent) : ?FormElement |
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{ |
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$strName = self::getAttribString($oXMLElement, 'name', ''); |
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$iSize = self::getAttribInt($oXMLElement, 'size', 1); |
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$wFlags = self::getAttribFlags($oXMLElement); |
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$oFormElement = new self($strName, $iSize, $wFlags); |
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$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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*/ |
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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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if (($strSelectBtnText = self::getAttribString($oXMLElement, 'selectbtntext')) !== null) { |
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$this->setSelectBtnText($strSelectBtnText); |
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} |
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$oOptions = $oXMLElement->getElementsByTagName('option'); |
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if ($oOptions->length > 0) { |
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$this->aOptions = []; |
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foreach($oOptions as $oOption) { |
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$this->aOptions[$oOption->nodeValue] = self::getAttribString($oOption, 'value'); |
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} |
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} |
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} |
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/** |
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* Build the HTML code for the element |
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* @return string |
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*/ |
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public function getHTML() : string |
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{ |
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$this->processFlags(); |
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$strSelect = $this->oFG->getData()->getValue($this->strName); |
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$aOptions = $this->aOptions ?: $this->oFG->getData()->getSelectOptions($this->strName); |
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$strWidth = ($this->oParent ? $this->oParent->getColWidth($this->iCol) : ''); |
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$strHTML = ''; |
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$strHTML .= ' '; |
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$strHTML .= '<div style="float: left; position: relative;'; |
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if (!empty($strWidth)) { |
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$strHTML .= ' width: ' . $strWidth . ';'; |
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} |
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$strHTML .= '">'; |
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if ($this->oFlags->isSet(FormFlags::SELECT_BTN)) { |
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$strHTML .= '<button class="sbBtn">' . $this->strSelectBtnText . '</button>'; |
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} |
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$strHTML .= '<select'; |
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$strHTML .= ' class="' . $this->strClass . '"'; |
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$strHTML .= ' name="' . $this->strName . '"'; |
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$strHTML .= ' id="' . $this->strName . '"'; |
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if ($this->size > 0) { |
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$strHTML .= ' size="' . $this->size . '"'; |
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} |
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$strHTML .= $this->buildStyle(); |
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$strHTML .= $this->buildAttributes(); |
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$strHTML .= $this->buildTabindex(); |
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$strHTML .= '>' . PHP_EOL; |
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if (count($aOptions) > 0) { |
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foreach ($aOptions as $strOption => $strValue) { |
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$strHTML .= ' '; |
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$strHTML .= '<option '; |
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if ($strValue == $strSelect) { |
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$strHTML .= 'selected '; |
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} |
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if (strlen($strOption) == 0) { |
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// to prevent HTML5 validation error "Element option without attribute label must not be empty." |
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$strOption = ' '; |
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} |
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$strHTML .= 'value="' . $strValue . '">' . $strOption . '</option>' . PHP_EOL; |
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} |
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} else { |
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// dropdown selectlist without options... |
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trigger_error('empty select options set!', E_USER_NOTICE); |
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} |
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$strHTML .= ' </select></div>' . PHP_EOL; |
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return $strHTML; |
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} |
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/** |
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* set text for selectbutton. |
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* @param string $strSelectBtnText |
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*/ |
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public function setSelectBtnText(string $strSelectBtnText) : void |
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{ |
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if (!$this->oFlags->isSet(FormFlags::SELECT_BTN)) { |
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trigger_error('SELECT_BTN flag must be set!', E_USER_NOTICE); |
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} |
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$this->strSelectBtnText = $strSelectBtnText; |
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} |
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/** |
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* Set the select options for the element. |
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* If no selection options are passed to the element via this method, an |
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* attempt is made in the getHTML () method to determine an assigned list |
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* via the data provider. |
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* @param array $aOptions |
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*/ |
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public function setSelectOptions(array $aOptions) : void |
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{ |
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$this->aOptions = $aOptions; |
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} |
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} |
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Stefanius67 /
Formgenerator
