Yiisoft\Yii\Bootstrap5\Dropdown

Complexity

Total Complexity

23

Size/Duplication

Total Lines	217
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	3
Bugs	0	Features	0

7 Methods

Rating	Name	Duplication	Size	Complexity
A	withItems()	0	6	1
A	withoutEncodeLabels()	0	6	1
A	run()	0	14	3
A	withOptions()	0	6	1
A	withSubmenuOptions()	0	6	1
A	withEncodeTags()	0	6	1
C	renderItems()	0	92	15

<?php

declare(strict_types=1);

namespace Yiisoft\Yii\Bootstrap5;

use JsonException;
use RuntimeException;
use Yiisoft\Arrays\ArrayHelper;
use Yiisoft\Html\Html;

use function array_key_exists;
use function array_merge;
use function array_merge_recursive;
use function is_string;

/**
 * Dropdown renders a Bootstrap dropdown menu component.
 *
 * For example,
 *
 * ```php
 * <div class="dropdown">
 *     <?php
 *         echo Dropdown::widget()
 *             ->withItems([
 *                 ['label' => 'DropdownA', 'url' => '/'],
 *                 ['label' => 'DropdownB', 'url' => '#'],
 *             ]);
 *     ?>
 * </div>
 * ```
 */
final class Dropdown extends Widget
{
    private array $items = [];
    private bool $encodeLabels = true;
    private bool $encodeTags = false;
    private array $submenuOptions = [];
    private array $options = [];

    public function run(): string
    {
        if (!isset($this->options['id'])) {
            $this->options['id'] = "{$this->getId()}-dropdown";
        }

        /** @psalm-suppress InvalidArgument */
        Html::addCssClass($this->options, ['widget' => 'dropdown-menu']);

        if ($this->encodeTags === false) {
            $this->options = array_merge($this->options, ['itemOptions' => ['encode' =>false], 'encode' => false]);
        }

        return $this->renderItems($this->items, $this->options);
    }

    /**
     * List of menu items in the dropdown. Each array element can be either an HTML string, or an array representing a
     * single menu with the following structure:
     *
     * - label: string, required, the label of the item link.
     * - encode: bool, optional, whether to HTML-encode item label.
     * - url: string|array, optional, the URL of the item link. This will be processed by {@see currentPath}.
     *   If not set, the item will be treated as a menu header when the item has no sub-menu.
     * - visible: bool, optional, whether this menu item is visible. Defaults to true.
     * - linkOptions: array, optional, the HTML attributes of the item link.
     * - options: array, optional, the HTML attributes of the item.
     * - items: array, optional, the submenu items. The structure is the same as this property.
     *   Note that Bootstrap doesn't support dropdown submenu. You have to add your own CSS styles to support it.
     * - submenuOptions: array, optional, the HTML attributes for sub-menu container tag. If specified it will be
     *   merged with {@see submenuOptions}.
     *
     * To insert divider use `-`.
     *
     * @param array $value
     *
     * @return $this
     */
    public function withItems(array $value): self
    {
        $new = clone $this;
        $new->items = $value;

        return $new;
    }

    /**
     * Whether the labels for header items should be HTML-encoded.
     *
     * @param bool $value
     *
     * @return $this
     */
    public function withoutEncodeLabels(bool $value = false): self
    {
        $new = clone $this;
        $new->encodeLabels = $value;

        return $new;
    }

    /**
     * The HTML attributes for sub-menu container tags.
     *
     * @param array $value
     *
     * @return $this
     */
    public function withSubmenuOptions(array $value): self
    {
        $new = clone $this;
        $new->submenuOptions = $value;

        return $new;
    }

    /**
     * @param array $value the HTML attributes for the widget container tag. The following special options are
     * recognized.
     *
     * @return $this
     *
     * {@see Html::renderTagAttributes()} for details on how attributes are being rendered.
     */
    public function withOptions(array $value): self
    {
        $new = clone $this;
        $new->options = $value;

        return $new;
    }

    /**
     * Allows you to enable or disable the encoding tags html.
     *
     * @param bool $value
     *
     * @return self
     */
    public function withEncodeTags(bool $value = true): self
    {
        $new = clone $this;
        $new->encodeTags = $value;

        return $new;
    }

    /**
     * Renders menu items.
     *
     * @param array $items the menu items to be rendered
     * @param array $options the container HTML attributes
     *
     * @throws JsonException|RuntimeException if the label option is not specified in one of the items.
     *
     * @return string the rendering result.
     */
    private function renderItems(array $items, array $options = []): string
    {
        $lines = [];

        foreach ($items as $item) {
            if (is_string($item)) {
                $item = ['label' => $item, 'encode' => false, 'enclose' => false];
            }

            if (isset($item['visible']) && !$item['visible']) {
                continue;
            }

            if (!array_key_exists('label', $item)) {
                throw new RuntimeException("The 'label' option is required.");
            }

            $encodeLabel = $item['encode'] ?? $this->encodeLabels;
            $label = $encodeLabel ? Html::encode($item['label']) : $item['label'];
            $itemOptions = ArrayHelper::getValue($item, 'options', []);
            $linkOptions = ArrayHelper::getValue($item, 'linkOptions', []);
            $active = ArrayHelper::getValue($item, 'active', false);
            $disabled = ArrayHelper::getValue($item, 'disabled', false);
            $enclose = ArrayHelper::getValue($item, 'enclose', true);

            Html::addCssClass($linkOptions, ['widget' => 'dropdown-item']);

            if ($this->encodeTags === false) {
                $linkOptions = array_merge($linkOptions, ['encode' => false]);
                $itemOptions = array_merge($itemOptions, ['encode' => false]);
            }

            if ($disabled) {
                ArrayHelper::setValue($linkOptions, 'tabindex', '-1');
                ArrayHelper::setValue($linkOptions, 'aria-disabled', 'true');
                Html::addCssClass($linkOptions, ['disable' => 'disabled']);
            } elseif ($active) {
                Html::addCssClass($linkOptions, ['active' => 'active']);
            }

            $url = $item['url'] ?? null;

            if (empty($item['items'])) {
                if ($label === '-') {
                    $content = Html::div('', ['class' => 'dropdown-divider']);
                } elseif ($enclose === false) {
                    $content = $label;
                } elseif ($url === null) {
                    $content = Html::tag('h6', $label, ['class' => 'dropdown-header']);
                } else {
                    $content = Html::a($label, $url, $linkOptions);
                }

                $lines[] = $content;
            } else {
                $submenuOptions = $this->submenuOptions;

                if (isset($item['submenuOptions'])) {
                    $submenuOptions = array_merge($submenuOptions, $item['submenuOptions']);
                }

                Html::addCssClass($submenuOptions, ['submenu' => 'dropdown-menu']);
                Html::addCssClass($linkOptions, ['toggle' => 'dropdown-toggle']);

                $itemOptions = array_merge_recursive(['class' => ['dropdown'], 'aria-expanded' => 'false'], $itemOptions);

                $lines[] = Html::a($label, $url, array_merge(
                    [
                        'data-bs-toggle' => 'dropdown',
                        'aria-haspopup' => 'true',
                        'aria-expanded' => 'false',
                        'role' => 'button',
                    ],
                    $linkOptions)
                )

                . Html::tag(
                    'ul',
                    self::widget()
                        ->withItems($item['items'])

The method withItems() does not exist on Yiisoft\Widget\Widget. It seems like you code against a sub-type of Yiisoft\Widget\Widget such as Yiisoft\Yii\Bootstrap5\Nav or Yiisoft\Yii\Bootstrap5\Carousel or Yiisoft\Yii\Bootstrap5\Dropdown or Yiisoft\Yii\Bootstrap5\Tabs or Yiisoft\Yii\Bootstrap5\Accordion.

                        ->withOptions($submenuOptions)
                        ->withSubmenuOptions($submenuOptions)
                        ->withoutEncodeLabels($this->encodeLabels)
                        ->render(),
                    $itemOptions,
                );
            }
        }

        $options = array_merge(['aria-expanded' => 'false'], $options);

        return Html::ul($lines, $options);
    }
}