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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Yii\Bootstrap5; |
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use function array_key_exists; |
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use function array_merge; |
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use function implode; |
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use function is_array; |
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use function is_int; |
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use function is_numeric; |
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use function is_object; |
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use function is_string; |
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use JsonException; |
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use Yiisoft\Arrays\ArrayHelper; |
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use Yiisoft\Html\Html; |
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use Yiisoft\Widget\Exception\InvalidConfigException; |
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/** |
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* Accordion renders an accordion bootstrap javascript component. |
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* |
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* For example: |
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* |
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* ```php |
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* echo Accordion::widget() |
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* ->items([ |
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* [ |
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* 'label' => 'Collapsible Group Item #1', |
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* 'content' => 'Anim pariatur cliche...', |
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* // open its content by default |
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* 'contentOptions' => ['class' => 'show'], |
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* ], |
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* // another group item |
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* [ |
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* 'label' => 'Collapsible Group Item #2', |
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* 'content' => 'Anim pariatur cliche...', |
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* 'contentOptions' => [...], |
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* 'options' => [...], |
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* ], |
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* // if you want to swap out .accordion-body with .list-group, you may provide an array |
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* [ |
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* 'label' => 'Collapsible Group Item #3', |
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* 'content' => [ |
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* 'Anim pariatur cliche...', |
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* 'Anim pariatur cliche...', |
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* ], |
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* 'contentOptions' => [...], |
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* 'options' => [...], |
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* ], |
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* ]); |
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* ``` |
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*/ |
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class Accordion extends Widget |
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{ |
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private array $items = []; |
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private bool $encodeLabels = true; |
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private bool $autoCloseItems = true; |
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private array $itemToggleOptions = []; |
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private array $options = []; |
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protected function run(): string |
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{ |
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if (!isset($this->options['id'])) { |
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$this->options['id'] = "{$this->getId()}-accordion"; |
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} |
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$this->registerPlugin('collapse', $this->options); |
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Html::addCssClass($this->options, 'accordion'); |
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return implode("\n", [ |
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Html::beginTag('div', $this->options), |
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$this->renderItems(), |
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Html::endTag('div'), |
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]) . "\n"; |
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} |
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/** |
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* Renders collapsible items as specified on {@see items}. |
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* |
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* @throws InvalidConfigException|JsonException |
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* |
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* @return string the rendering result |
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*/ |
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public function renderItems(): string |
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{ |
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$items = []; |
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$index = 0; |
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foreach ($this->items as $key => $item) { |
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if (!is_array($item)) { |
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$item = ['content' => $item]; |
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} |
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if (!array_key_exists('label', $item)) { |
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if (is_int($key)) { |
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throw new InvalidConfigException("The 'label' option is required."); |
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} |
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$item['label'] = $key; |
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} |
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$header = ArrayHelper::remove($item, 'label'); |
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$options = ArrayHelper::getValue($item, 'options', []); |
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Html::addCssClass($options, ['panel' => 'accordion-item']); |
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$items[] = Html::tag('div', $this->renderItem($header, $item, $index++), $options); |
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} |
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return implode("\n", $items); |
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} |
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/** |
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* Renders a single collapsible item group. |
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* |
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* @param string $header a label of the item group {@see items} |
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* @param array $item a single item from {@see items} |
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* @param int $index the item index as each item group content must have an id |
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* |
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* @throws InvalidConfigException|JsonException |
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* |
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* @return string the rendering result |
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*/ |
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public function renderItem(string $header, array $item, int $index): string |
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{ |
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if (array_key_exists('content', $item)) { |
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$id = $this->options['id'] . '-collapse' . $index; |
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$options = ArrayHelper::getValue($item, 'contentOptions', []); |
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$options['id'] = $id; |
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Html::addCssClass($options, ['accordion-body', 'collapse']); |
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if ($index === 0) { |
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Html::addCssClass($options, 'show'); |
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} |
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if (!isset($options['aria-label'], $options['aria-labelledby'])) { |
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$options['aria-labelledby'] = $options['id'] . '-heading'; |
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} |
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$encodeLabel = $item['encode'] ?? $this->encodeLabels; |
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if ($encodeLabel) { |
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$header = Html::encode($header); |
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} |
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$itemToggleOptions = array_merge([ |
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'tag' => 'button', |
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'type' => 'button', |
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'data-toggle' => 'collapse', |
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'data-target' => '#' . $options['id'], |
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'aria-expanded' => ($index === 0) ? 'true' : 'false', |
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], $this->itemToggleOptions); |
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$itemToggleTag = ArrayHelper::remove($itemToggleOptions, 'tag', 'button'); |
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/** @psalm-suppress ConflictingReferenceConstraint */ |
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if ($itemToggleTag === 'a') { |
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ArrayHelper::remove($itemToggleOptions, 'data-target'); |
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$header = Html::a($header, '#' . $id, $itemToggleOptions) . "\n"; |
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} else { |
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Html::addCssClass($itemToggleOptions, 'accordion-button'); |
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if ($index !== 0) { |
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Html::addCssClass($itemToggleOptions, 'collapsed'); |
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} |
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$header = Html::button($header, $itemToggleOptions); |
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} |
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if (is_string($item['content']) || is_numeric($item['content']) || is_object($item['content'])) { |
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$content = $item['content']; |
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} elseif (is_array($item['content'])) { |
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$content = Html::ul($item['content'], [ |
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'class' => 'list-group', |
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'itemOptions' => [ |
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'class' => 'list-group-item', |
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], |
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'encode' => false, |
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]) . "\n"; |
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} else { |
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throw new InvalidConfigException('The "content" option should be a string, array or object.'); |
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} |
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} else { |
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throw new InvalidConfigException('The "content" option is required.'); |
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} |
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$group = []; |
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if ($this->autoCloseItems) { |
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$options['data-parent'] = '#' . $this->options['id']; |
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} |
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$group[] = Html::tag('h2', $header, ['class' => 'accordion-header', 'id' => $options['id'] . '-heading']); |
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$group[] = Html::div($content, $options); |
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return implode("\n", $group); |
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} |
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/** |
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* Whether to close other items if an item is opened. Defaults to `true` which causes an accordion effect. |
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* |
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* Set this to `false` to allow keeping multiple items open at once. |
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* |
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* @param bool $value |
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* |
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* @return $this |
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*/ |
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public function autoCloseItems(bool $value): self |
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{ |
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$this->autoCloseItems = $value; |
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return $this; |
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} |
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/** |
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* Whether the labels for header items should be HTML-encoded. |
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* |
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* @param bool $value |
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* |
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* @return $this |
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*/ |
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public function encodeLabels(bool $value): self |
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{ |
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$this->encodeLabels = $value; |
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return $this; |
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} |
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/** |
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* List of groups in the collapse widget. Each array element represents a single group with the following structure: |
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* |
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* - label: string, required, the group header label. |
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* - encode: bool, optional, whether this label should be HTML-encoded. This param will override global |
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* `$this->encodeLabels` param. |
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* - content: array|string|object, required, the content (HTML) of the group |
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* - options: array, optional, the HTML attributes of the group |
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* - contentOptions: optional, the HTML attributes of the group's content |
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* |
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* You may also specify this property as key-value pairs, where the key refers to the `label` and the value refers |
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* to `content`. If value is a string it is interpreted as label. If it is an array, it is interpreted as explained |
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* above. |
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* |
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* For example: |
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* |
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* ```php |
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* echo Accordion::widget([ |
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* 'items' => [ |
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* 'Introduction' => 'This is the first collapsible menu', |
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* 'Second panel' => [ |
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* 'content' => 'This is the second collapsible menu', |
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* ], |
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* [ |
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* 'label' => 'Third panel', |
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* 'content' => 'This is the third collapsible menu', |
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* ], |
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* ] |
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* ]) |
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* ``` |
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* |
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* @param array $value |
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* |
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* @return $this |
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*/ |
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6 |
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public function items(array $value): self |
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{ |
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$this->items = $value; |
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return $this; |
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} |
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/** |
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* The HTML options for the item toggle tag. Key 'tag' might be used here for the tag name specification. |
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* |
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* For example: |
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* |
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* ```php |
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* [ |
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* 'tag' => 'div', |
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* 'class' => 'custom-toggle', |
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* ] |
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* ``` |
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* |
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* @param array $value |
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* |
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* @return $this |
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*/ |
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public function itemToggleOptions(array $value): self |
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{ |
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$this->itemToggleOptions = $value; |
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return $this; |
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} |
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/** |
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* The HTML attributes for the widget container tag. The following special options are recognized. |
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* |
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* {@see \Yiisoft\Html\Html::renderTagAttributes()} for details on how attributes are being rendered. |
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* |
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* @param array $value |
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* |
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* @return $this |
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*/ |
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public function options(array $value): self |
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{ |
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$this->options = $value; |
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return $this; |
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} |
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} |
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yiisoft /
yii-bootstrap5
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