Breadcrumbs::run() - Code Metrics - Inspection of "Big refactoring." - yiisoft/yii-widgets - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#53)

unknown

created 2022-09-27 16:09 UTC

Breadcrumbs::run() B

↳ Parent: Breadcrumbs

Complexity

Conditions	8
Paths	21

Size

Total Lines	31
Code Lines	16

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	16
CRAP Score	8

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	8
eloc	16
c	1
b	0
f	0
nc	21
nop	0
dl	0
loc	31
ccs	16
cts	16
cp	1
crap	8
rs	8.4444

<?php

declare(strict_types=1);

namespace Yiisoft\Yii\Widgets;

use InvalidArgumentException;
use JsonException;
use Yiisoft\Html\Html;
use Yiisoft\Widget\Widget;

use function array_key_exists;
use function implode;
use function is_array;
use function strtr;

/**
 * Breadcrumbs displays a list of items indicating the position of the current page in the whole site hierarchy.
 *
 * For example, breadcrumbs like "Home / Sample Post / Edit" means the user is viewing an edit page for the
 * "Sample Post". He can click on "Sample Post" to view that page, or he can click on "Home" to return to the homepage.
 *
 * To use Breadcrumbs, you need to configure its {@see Breadcrumbs::items()} method,
 * which specifies the items to be displayed. For example:
 *
 * ```php
 * // $this is the view object currently being used
 * echo Breadcrumbs::widget()
 *     -> itemTemplate() => "<li><i>{link}</i></li>\n", // template for all links
 *     -> items() => [
 *         [
 *             'label' => 'Post Category',
 *             'url' => 'post-category/view?id=10',
 *             'template' => "<li><b>{link}</b></li>\n", // template for this link only
 *         ],
 *         ['label' => 'Sample Post', 'url' => 'post/edit?id=1',
 *         'Edit',
 *     ];
 * ```
 *
 * Because breadcrumbs usually appears in nearly every page of a website, you may consider placing it in a layout view.
 * You can use a view common parameter (e.g. `$this->getCommonParameter('breadcrumbs')`) to configure the items in
 * different views. In the layout view, you assign this view parameter to the {@see Breadcrumbs::items()} method
 * like the following:
 *
 * ```php
 * // $this is the view object currently being used
 * echo Breadcrumbs::widget()->items($this->getCommonParameter('breadcrumbs', []));
 * ```
 */
final class Breadcrumbs extends Widget
{
    private string $activeItemTemplate = "<li class=\"active\">{link}</li>\n";
    private array $attributes = ['class' => 'breadcrumb'];
    private array|null $homeItem = ['label' => 'Home', 'url' => '/'];
    private array $items = [];
    private string $itemTemplate = "<li>{link}</li>\n";
    private string $tag = 'ul';

    /**
     * Returns a new instance with the specified active item template.
     *
     * @param string $value The template used to render each active item in the breadcrumbs.
     * The token `{link}` will be replaced with the actual HTML link for each active item.
     */
    public function activeItemTemplate(string $value): self
    {
        $new = clone $this;
        $new->activeItemTemplate = $value;

        return $new;
    }

    /**
     * Returns a new instance with the HTML attributes. The following special options are recognized.
     *
     * @param array $values Attribute values indexed by attribute names.
     */
    public function attributes(array $values): self
    {
        $new = clone $this;
        $new->attributes = $values;

        return $new;
    }

    /**
     * Returns a new instance with the specified first item in the breadcrumbs (called home link).
     *
     * If a null is specified, the home item will not be rendered.
     *
     * @param array|null $value Please refer to {@see items()} on the format.
     *
     * @throws InvalidArgumentException If an empty array is specified.
     */
    public function homeItem(?array $value): self
    {
        if ($value === []) {
            throw new InvalidArgumentException(
                'The home item cannot be an empty array. To disable rendering of the home item, specify null.',
            );
        }

        $new = clone $this;
        $new->homeItem = $value;

        return $new;
    }

    /**
     * Returns a new instance with the specified list of items.
     *
     * @param array $value List of items to appear in the breadcrumbs. If this property is empty, the widget will not
     * render anything. Each array element represents a single item in the breadcrumbs with the following structure:
     *
     * ```php
     * [
     *     'label' => 'label of the item',  // required
     *     'url' => 'url of the item',      // optional
     *     'template' => 'own template of the item', // optional, if not set $this->itemTemplate will be used
     * ]
     * ```
     *
     * If a item is active, you only need to specify its "label", and instead of writing `['label' => $label]`, you may
     * simply use `$label`.
     *
     * Additional array elements for each item will be treated as the HTML attributes for the hyperlink tag.
     * For example, the following item specification will generate a hyperlink with CSS class `external`:
     *
     * ```php
     * [
     *     'label' => 'demo',
     *     'url' => 'http://example.com',
     *     'class' => 'external',
     * ]
     * ```
     *
     * Each individual item can override global {@see encodeLabels} param like the following:
     *
     * ```php
     * [
     *     'label' => '<strong>Hello!</strong>',
     *     'encode' => false,
     * ]
     * ```
     */
    public function items(array $value): self
    {
        $new = clone $this;
        $new->items = $value;

        return $new;
    }

    /**
     * Returns a new instance with the specified item template.
     *
     * @param string $value The template used to render each inactive item in the breadcrumbs.
     * The token `{link}` will be replaced with the actual HTML link for each inactive item.
     */
    public function itemTemplate(string $value): self
    {
        $new = clone $this;
        $new->itemTemplate = $value;

        return $new;
    }

    /**
     * Returns a new instance with the specified tag.
     *
     * @param string $value The tag name.
     */
    public function tag(string $value): self
    {
        $new = clone $this;
        $new->tag = $value;

        return $new;
    }

    /**
     * Renders the widget.
     *
     * @throws JsonException
     *
     * @return string The result of widget execution to be outputted.
     */
    protected function run(): string
    {
        if ($this->items === []) {
            return '';
        }

        $items = [];

        if ($this->homeItem !== null) {
            $items[] = $this->renderItem($this->homeItem, $this->itemTemplate);
        }

        /** @var mixed $item */
        foreach ($this->items as $item) {
            if (!is_array($item)) {
                $item = ['label' => $item];
            }

            if ($item !== []) {
                $items[] = $this->renderItem(
                    $item,
                    isset($item['url']) ? $this->itemTemplate : $this->activeItemTemplate
                );
            }
        }

        $body = implode('', $items);

        return empty($this->tag)
            ? $body
            : Html::normalTag($this->tag, PHP_EOL . $body, $this->attributes)->encode(false)->render();
    }

    /**
     * Renders a single breadcrumb item.
     *
     * @param array $item The item to be rendered. It must contain the "label" element. The "url" element is optional.
     * @param string $template The template to be used to rendered the link. The token "{link}" will be replaced by the
     * link.
     *
     * @throws InvalidArgumentException|JsonException if `$item` does not have "label" element.
     *
     * @return string The rendering result.
     */
    private function renderItem(array $item, string $template): string
    {
        if (!array_key_exists('label', $item)) {
            throw new InvalidArgumentException('The "label" element is required for each item.');
        }

        if (!is_string($item['label'])) {
            throw new InvalidArgumentException('The "label" element must be a string.');
        }

        /** @var bool */
        $encodeLabel = $item['encode'] ?? true;
        $label = $encodeLabel ? Html::encode($item['label']) : $item['label'];

        if (isset($item['template']) && is_string($item['template'])) {
            $template = $item['template'];
        }

        if (isset($item['url']) && is_string($item['url'])) {
            $link = $item['url'];
            unset($item['template'], $item['label'], $item['url']);
            $link = Html::a($label, $link, $item);
        } else {
            $link = $label;
        }

        return strtr($template, ['{link}' => $link]);
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Yiisoft\Yii\Widgets;
6
7		use InvalidArgumentException;
8		use JsonException;
9		use Yiisoft\Html\Html;
10		use Yiisoft\Widget\Widget;
11
12		use function array_key_exists;
13		use function implode;
14		use function is_array;
15		use function strtr;
16
17		/**
18		* Breadcrumbs displays a list of items indicating the position of the current page in the whole site hierarchy.
19		*
20		* For example, breadcrumbs like "Home / Sample Post / Edit" means the user is viewing an edit page for the
21		* "Sample Post". He can click on "Sample Post" to view that page, or he can click on "Home" to return to the homepage.
22		*
23		* To use Breadcrumbs, you need to configure its {@see Breadcrumbs::items()} method,
24		* which specifies the items to be displayed. For example:
25		*
26		* ```php
27		* // $this is the view object currently being used
28		* echo Breadcrumbs::widget()
29		* -> itemTemplate() => "<li><i>{link}</i></li>\n", // template for all links
30		* -> items() => [
31		* [
32		* 'label' => 'Post Category',
33		* 'url' => 'post-category/view?id=10',
34		* 'template' => "<li><b>{link}</b></li>\n", // template for this link only
35		* ],
36		* ['label' => 'Sample Post', 'url' => 'post/edit?id=1',
37		* 'Edit',
38		* ];
39		* ```
40		*
41		* Because breadcrumbs usually appears in nearly every page of a website, you may consider placing it in a layout view.
42		* You can use a view common parameter (e.g. `$this->getCommonParameter('breadcrumbs')`) to configure the items in
43		* different views. In the layout view, you assign this view parameter to the {@see Breadcrumbs::items()} method
44		* like the following:
45		*
46		* ```php
47		* // $this is the view object currently being used
48		* echo Breadcrumbs::widget()->items($this->getCommonParameter('breadcrumbs', []));
49		* ```
50		*/
51		final class Breadcrumbs extends Widget
52		{
53		private string $activeItemTemplate = "<li class=\"active\">{link}</li>\n";
54		private array $attributes = ['class' => 'breadcrumb'];
55		private array\|null $homeItem = ['label' => 'Home', 'url' => '/'];
56		private array $items = [];
57		private string $itemTemplate = "<li>{link}</li>\n";
58		private string $tag = 'ul';
59
60		/**
61		* Returns a new instance with the specified active item template.
62		*
63		* @param string $value The template used to render each active item in the breadcrumbs.
64		* The token `{link}` will be replaced with the actual HTML link for each active item.
65		*/
66	4	public function activeItemTemplate(string $value): self
67		{
68	4	$new = clone $this;
69	4	$new->activeItemTemplate = $value;
70
71	4	return $new;
72		}
73
74		/**
75		* Returns a new instance with the HTML attributes. The following special options are recognized.
76		*
77		* @param array $values Attribute values indexed by attribute names.
78		*/
79	3	public function attributes(array $values): self
80		{
81	3	$new = clone $this;
82	3	$new->attributes = $values;
83
84	3	return $new;
85		}
86
87		/**
88		* Returns a new instance with the specified first item in the breadcrumbs (called home link).
89		*
90		* If a null is specified, the home item will not be rendered.
91		*
92		* @param array\|null $value Please refer to {@see items()} on the format.
93		*
94		* @throws InvalidArgumentException If an empty array is specified.
95		*/
96	8	public function homeItem(?array $value): self
97		{
98	8	if ($value === []) {
99	1	throw new InvalidArgumentException(
100		'The home item cannot be an empty array. To disable rendering of the home item, specify null.',
101		);
102		}
103
104	7	$new = clone $this;
105	7	$new->homeItem = $value;
106
107	7	return $new;
108		}
109
110		/**
111		* Returns a new instance with the specified list of items.
112		*
113		* @param array $value List of items to appear in the breadcrumbs. If this property is empty, the widget will not
114		* render anything. Each array element represents a single item in the breadcrumbs with the following structure:
115		*
116		* ```php
117		* [
118		* 'label' => 'label of the item', // required
119		* 'url' => 'url of the item', // optional
120		* 'template' => 'own template of the item', // optional, if not set $this->itemTemplate will be used
121		* ]
122		* ```
123		*
124		* If a item is active, you only need to specify its "label", and instead of writing `['label' => $label]`, you may
125		* simply use `$label`.
126		*
127		* Additional array elements for each item will be treated as the HTML attributes for the hyperlink tag.
128		* For example, the following item specification will generate a hyperlink with CSS class `external`:
129		*
130		* ```php
131		* [
132		* 'label' => 'demo',
133		* 'url' => 'http://example.com',
134		* 'class' => 'external',
135		* ]
136		* ```
137		*
138		* Each individual item can override global {@see encodeLabels} param like the following:
139		*
140		* ```php
141		* [
142		* 'label' => '<strong>Hello!</strong>',
143		* 'encode' => false,
144		* ]
145		* ```
146		*/
147	11	public function items(array $value): self
148		{
149	11	$new = clone $this;
150	11	$new->items = $value;
151
152	11	return $new;
153		}
154
155		/**
156		* Returns a new instance with the specified item template.
157		*
158		* @param string $value The template used to render each inactive item in the breadcrumbs.
159		* The token `{link}` will be replaced with the actual HTML link for each inactive item.
160		*/
161	2	public function itemTemplate(string $value): self
162		{
163	2	$new = clone $this;
164	2	$new->itemTemplate = $value;
165
166	2	return $new;
167		}
168
169		/**
170		* Returns a new instance with the specified tag.
171		*
172		* @param string $value The tag name.
173		*/
174	4	public function tag(string $value): self
175		{
176	4	$new = clone $this;
177	4	$new->tag = $value;
178
179	4	return $new;
180		}
181
182		/**
183		* Renders the widget.
184		*
185		* @throws JsonException
186		*
187		* @return string The result of widget execution to be outputted.
188		*/
189	11	protected function run(): string
190		{
191	11	if ($this->items === []) {
192	1	return '';
193		}
194
195	10	$items = [];
196
197	10	if ($this->homeItem !== null) {
198	5	$items[] = $this->renderItem($this->homeItem, $this->itemTemplate);
199		}
200
201		/** @var mixed $item */
202	10	foreach ($this->items as $item) {
203	10	if (!is_array($item)) {
204	6	$item = ['label' => $item];
205		}
206
207	10	if ($item !== []) {
208	10	$items[] = $this->renderItem(
209		$item,
210	10	isset($item['url']) ? $this->itemTemplate : $this->activeItemTemplate
211		);
212		}
213		}
214
215	8	$body = implode('', $items);
216
217	8	return empty($this->tag)
218	2	? $body
219	8	: Html::normalTag($this->tag, PHP_EOL . $body, $this->attributes)->encode(false)->render();
220		}
221
222		/**
223		* Renders a single breadcrumb item.
224		*
225		* @param array $item The item to be rendered. It must contain the "label" element. The "url" element is optional.
226		* @param string $template The template to be used to rendered the link. The token "{link}" will be replaced by the
227		* link.
228		*
229		* @throws InvalidArgumentException\|JsonException if `$item` does not have "label" element.
230		*
231		* @return string The rendering result.
232		*/
233	10	private function renderItem(array $item, string $template): string
234		{
235	10	if (!array_key_exists('label', $item)) {
236	1	throw new InvalidArgumentException('The "label" element is required for each item.');
237		}
238
239	9	if (!is_string($item['label'])) {
240	1	throw new InvalidArgumentException('The "label" element must be a string.');
241		}
242
243		/** @var bool */
244	9	$encodeLabel = $item['encode'] ?? true;
245	9	$label = $encodeLabel ? Html::encode($item['label']) : $item['label'];
246
247	9	if (isset($item['template']) && is_string($item['template'])) {
248	1	$template = $item['template'];
249		}
250
251	9	if (isset($item['url']) && is_string($item['url'])) {
252	4	$link = $item['url'];
253	4	unset($item['template'], $item['label'], $item['url']);
254	4	$link = Html::a($label, $link, $item);
255		} else {
256	8	$link = $label;
257		}
258
259	9	return strtr($template, ['{link}' => $link]);
260		}
261		}
262

yiisoft / yii-widgets

Pull Request — master (#53)

Breadcrumbs::run() B

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