support optgroups in select
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@ -667,6 +667,8 @@ class htmlSelect extends htmlElement {
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private $selectedElements;
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/** descriptive elements */
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private $hasDescriptiveElements = false;
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/** contains optgroups */
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private $containsOptgroups = false;
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/** sorting enabled */
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private $sortElements = true;
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/** right to left text direction */
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@ -676,9 +678,20 @@ class htmlSelect extends htmlElement {
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/**
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* Constructor.
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*
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*
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* <br>Examples:
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* <br>
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* <br>$select = new htmlSelect('myName', array('value1', 'value2'), array('value1'));
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* <br>
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* <br>$select = new htmlSelect('myName', array('label1' => 'value1', 'label2' => 'value2'), array('value1'));
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* <br>$select->setHasDescriptiveElements(true);
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* <br>
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* <br>$select = new htmlSelect('myName', array('optgroupLabel' => array('value1', 'value2')), array('value1'));
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* <br>$select->setHasDescriptiveElements(true);
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* <br>$select->setContainsOptgroups(true);
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*
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* @param String $name element name
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* @param array $elements list of elememts (label => value)
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* @param array $elements list of elements array(label => value) or array(value1, value2) or array('optgroup' => array(...))
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* @param array $selectedElements list of selected elements (optional, default none)
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* @param int $size size (optional, default = 1)
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*/
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@ -721,22 +734,49 @@ class htmlSelect extends htmlElement {
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}
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echo '<select' . $class . $name . $size . $multi . $disabled . ' tabindex="' . $tabindex . "\">\n";
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$tabindex++;
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if ($this->containsOptgroups) {
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foreach ($this->elements as $label => $elements) {
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if (sizeof($elements) > 0) {
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echo '<optgroup label="' . $label . '">';
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$this->printOptionsHTML($elements);
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echo '</optgroup>';
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}
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}
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}
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else {
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$this->printOptionsHTML($this->elements);
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}
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echo "</select>\n";
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if ($this->multiSelect) {
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return array($this->name => 'multiselect');
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}
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else {
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return array($this->name => 'select');
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}
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}
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/**
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* Prints the HTML code of the option tags.
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*
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* @param array $elements list of options
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*/
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private function printOptionsHTML($elements) {
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// sorting
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if ($this->sortElements) {
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if ($this->hasDescriptiveElements) {
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$labels = array_keys($this->elements);
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$labels = array_keys($elements);
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natcasesort($labels);
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$newElements = array();
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foreach ($labels as $label) {
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$newElements[$label] = $this->elements[$label];
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$newElements[$label] = $elements[$label];
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}
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$this->elements = $newElements;
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$elements = $newElements;
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}
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else {
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natcasesort($this->elements);
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natcasesort($elements);
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}
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}
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foreach ($this->elements as $key => $value) {
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foreach ($elements as $key => $value) {
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$selected = '';
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if ($this->hasDescriptiveElements) {
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if (in_array($value, $this->selectedElements)) {
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@ -751,13 +791,6 @@ class htmlSelect extends htmlElement {
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echo "<option$selected>" . htmlspecialchars($value) . "</option>\n";
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}
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}
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echo "</select>\n";
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if ($this->multiSelect) {
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return array($this->name => 'multiselect');
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}
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else {
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return array($this->name => 'select');
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}
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}
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/**
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@ -769,6 +802,15 @@ class htmlSelect extends htmlElement {
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$this->hasDescriptiveElements = $hasDescriptiveElements;
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}
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/**
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* Specifies if the elements are divided into optgroups.
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*
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* @param boolean $containsOptgroups activates optgroups
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*/
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public function setContainsOptgroups($containsOptgroups) {
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$this->containsOptgroups = $containsOptgroups;
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}
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/**
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* Specifies if multi-selection is enabled (default: disabled).
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*
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