Breadcrumbs::homeItem() - Code Metrics - Inspection of "Make widgets immutable, change method names (#36)" - yiisoft/yii-widgets - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( b3e37a...994985 )

by Evgeniy

created 2021-07-21 09:41 UTC

Breadcrumbs::homeItem() A

↳ Parent: Breadcrumbs

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	3
c	0
b	0
f	0
nc	1
nop	1
dl	0
loc	5
ccs	4
cts	4
cp	1
crap	1
rs	10

<?php

declare(strict_types=1);

namespace Yiisoft\Yii\Widgets;

use InvalidArgumentException;
use JsonException;
use Yiisoft\Arrays\ArrayHelper;
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 links 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 links to be displayed. For example:
 *
 * ```php
 * // $this is the view object currently being used
 * echo Breadcrumbs::widget()
 *     -> itemTemplate() => "<li><i>{link}</i></li>\n", // template for all links
 *     -> links() => [
 *         [
 *             'label' => 'Post Category',
 *             'url' => 'post-category/view?id=10',
 *             'template' => "<li><b>{link}</b></li>\n", // template for this link only
 *         ],
 *         ['label' => 'Sample Post', 'url' => 'post/edit?id=1',
 *         'Edit',
 *     ];
 * ```
 *
 * Because breadcrumbs usually appears in nearly every page of a website, you may consider placing it in a layout view.
 * You can use a view common parameter (e.g. `$this->getCommonParameter('breadcrumbs')`) to configure the links in
 * different views. In the layout view, you assign this view parameter to the {@see Breadcrumbs::items()} method
 * like the following:
 *
 * ```php
 * // $this is the view object currently being used
 * echo Breadcrumbs::widget()
 *     ->links($this->hasCommonParameter('breadcrumbs') ? $this->getCommonParameter('breadcrumbs') : []);
 * ```
 */
final class Breadcrumbs extends Widget
{
    private string $tag = 'ul';
    private array $options = ['class' => 'breadcrumb'];
    private bool $encodeLabels = true;
    private bool $withoutHomeItem = false;
    private array $homeItem = [];
    private array $items = [];
    private string $itemTemplate = "<li>{link}</li>\n";
    private string $activeItemTemplate = "<li class=\"active\">{link}</li>\n";

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

    /**
     * Disables encoding for labels and returns a new instance..
     *
     * @return self Whether the labels for menu items should be HTML-encoded.
     */
    public function withoutEncodeLabels(): self
    {
        $new = clone $this;
        $new->encodeLabels = false;
        return $new;
    }

    /**
     * Disables rendering of the home item and returns a new instance.
     *
     * @return self
     */
    public function withoutHomeItem(): self
    {
        $new = clone $this;
        $new->withoutHomeItem = true;
        return $new;
    }

    /**
     * Returns a new instance with the specified first item in the breadcrumbs (called home link).
     *
     * @param array $value Please refer to {@see items()} on the format.
     *
     * @return self
     */
    public function homeItem(array $value): self
    {
        $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 link in the breadcrumbs with the following structure:
     *
     * ```php
     * [
     *     'label' => 'label of the link',  // required
     *     'url' => 'url of the link',      // optional
     *     'template' => 'own template of the item', // optional, if not set $this->itemTemplate will be used
     * ]
     * ```
     *
     * If a link 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 link will be treated as the HTML attributes for the hyperlink tag.
     * For example, the following link specification will generate a hyperlink with CSS class `external`:
     *
     * ```php
     * [
     *     'label' => 'demo',
     *     'url' => 'http://example.com',
     *     'class' => 'external',
     * ]
     * ```
     *
     * Each individual link can override global {@see encodeLabels} param like the following:
     *
     * ```php
     * [
     *     'label' => '<strong>Hello!</strong>',
     *     'encode' => false,
     * ]
     * ```
     *
     * @return self
     */
    public function items(array $value): self
    {
        $new = clone $this;
        $new->items = $value;
        return $new;
    }

    /**
     * @param array $value The HTML attributes for the menu's container tag. The following special options are
     * recognized:
     *
     * - tag: string, defaults to "ul", the tag name of the item container tags. Set to false to disable container tag.
     *   See also {@see \Yiisoft\Html\Html::tag()}.
     *
     * {@see \Yiisoft\Html\Html::renderTagAttributes()} for details on how attributes are being rendered.
     *
     * @return self
     */
    public function options(array $value): self
    {
        $new = clone $this;
        $new->options = $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.
     *
     * @return self
     */
    public function itemTemplate(string $value): self
    {
        $new = clone $this;
        $new->itemTemplate = $value;
        return $new;
    }

    /**
     * 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.
     *
     * @return self
     */
    public function activeItemTemplate(string $value): self
    {
        $new = clone $this;
        $new->activeItemTemplate = $value;
        return $new;
    }

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

        $items = [];

        if ($this->withoutHomeItem === false) {
            $items[] = $this->renderHomeLink();
        }

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

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

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

        return empty($this->tag)
            ? $body
            : Html::tag($this->tag, $body, $this->options)->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 link.');
        }

        $encodeLabel = ArrayHelper::remove($item, 'encode', $this->encodeLabels);
        $label = $encodeLabel ? Html::encode($item['label']) : $item['label'];

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

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

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

    /**
     * Renders a home item.
     *
     * @throws JsonException
     *
     * @return string The rendering result.
     */
    private function renderHomeLink(): string
    {
        if ($this->homeItem === []) {
            $this->homeItem = ['label' => 'Home', 'url' => '/'];
        }

        return $this->renderItem($this->homeItem, $this->itemTemplate);
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Yiisoft\Yii\Widgets;
6
7		use InvalidArgumentException;
8		use JsonException;
9		use Yiisoft\Arrays\ArrayHelper;
10		use Yiisoft\Html\Html;
11		use Yiisoft\Widget\Widget;
12
13		use function array_key_exists;
14		use function implode;
15		use function is_array;
16		use function strtr;
17
18		/**
19		* Breadcrumbs displays a list of links indicating the position of the current page in the whole site hierarchy.
20		*
21		* For example, breadcrumbs like "Home / Sample Post / Edit" means the user is viewing an edit page for the
22		* "Sample Post". He can click on "Sample Post" to view that page, or he can click on "Home" to return to the homepage.
23		*
24		* To use Breadcrumbs, you need to configure its {@see Breadcrumbs::items()} method,
25		* which specifies the links to be displayed. For example:
26		*
27		* ```php
28		* // $this is the view object currently being used
29		* echo Breadcrumbs::widget()
30		* -> itemTemplate() => "<li><i>{link}</i></li>\n", // template for all links
31		* -> links() => [
32		* [
33		* 'label' => 'Post Category',
34		* 'url' => 'post-category/view?id=10',
35		* 'template' => "<li><b>{link}</b></li>\n", // template for this link only
36		* ],
37		* ['label' => 'Sample Post', 'url' => 'post/edit?id=1',
38		* 'Edit',
39		* ];
40		* ```
41		*
42		* Because breadcrumbs usually appears in nearly every page of a website, you may consider placing it in a layout view.
43		* You can use a view common parameter (e.g. `$this->getCommonParameter('breadcrumbs')`) to configure the links in
44		* different views. In the layout view, you assign this view parameter to the {@see Breadcrumbs::items()} method
45		* like the following:
46		*
47		* ```php
48		* // $this is the view object currently being used
49		* echo Breadcrumbs::widget()
50		* ->links($this->hasCommonParameter('breadcrumbs') ? $this->getCommonParameter('breadcrumbs') : []);
51		* ```
52		*/
53		final class Breadcrumbs extends Widget
54		{
55		private string $tag = 'ul';
56		private array $options = ['class' => 'breadcrumb'];
57		private bool $encodeLabels = true;
58		private bool $withoutHomeItem = false;
59		private array $homeItem = [];
60		private array $items = [];
61		private string $itemTemplate = "<li>{link}</li>\n";
62		private string $activeItemTemplate = "<li class=\"active\">{link}</li>\n";
63
64		/**
65		* Returns a new instance with the specified tag.
66		*
67		* @param string $value The tag name.
68		*
69		* @return self
70		*/
71	4	public function tag(string $value): self
72		{
73	4	$new = clone $this;
74	4	$new->tag = $value;
75	4	return $new;
76		}
77
78		/**
79		* Disables encoding for labels and returns a new instance..
80		*
81		* @return self Whether the labels for menu items should be HTML-encoded.
82		*/
83	2	public function withoutEncodeLabels(): self
84		{
85	2	$new = clone $this;
86	2	$new->encodeLabels = false;
87	2	return $new;
88		}
89
90		/**
91		* Disables rendering of the home item and returns a new instance.
92		*
93		* @return self
94		*/
95	6	public function withoutHomeItem(): self
96		{
97	6	$new = clone $this;
98	6	$new->withoutHomeItem = true;
99	6	return $new;
100		}
101
102		/**
103		* Returns a new instance with the specified first item in the breadcrumbs (called home link).
104		*
105		* @param array $value Please refer to {@see items()} on the format.
106		*
107		* @return self
108		*/
109	2	public function homeItem(array $value): self
110		{
111	2	$new = clone $this;
112	2	$new->homeItem = $value;
113	2	return $new;
114		}
115
116		/**
117		* Returns a new instance with the specified list of items.
118		*
119		* @param array $value List of items to appear in the breadcrumbs. If this property is empty, the widget will not
120		* render anything. Each array element represents a single link in the breadcrumbs with the following structure:
121		*
122		* ```php
123		* [
124		* 'label' => 'label of the link', // required
125		* 'url' => 'url of the link', // optional
126		* 'template' => 'own template of the item', // optional, if not set $this->itemTemplate will be used
127		* ]
128		* ```
129		*
130		* If a link is active, you only need to specify its "label", and instead of writing `['label' => $label]`, you may
131		* simply use `$label`.
132		*
133		* Additional array elements for each link will be treated as the HTML attributes for the hyperlink tag.
134		* For example, the following link specification will generate a hyperlink with CSS class `external`:
135		*
136		* ```php
137		* [
138		* 'label' => 'demo',
139		* 'url' => 'http://example.com',
140		* 'class' => 'external',
141		* ]
142		* ```
143		*
144		* Each individual link can override global {@see encodeLabels} param like the following:
145		*
146		* ```php
147		* [
148		* 'label' => '<strong>Hello!</strong>',
149		* 'encode' => false,
150		* ]
151		* ```
152		*
153		* @return self
154		*/
155	9	public function items(array $value): self
156		{
157	9	$new = clone $this;
158	9	$new->items = $value;
159	9	return $new;
160		}
161
162		/**
163		* @param array $value The HTML attributes for the menu's container tag. The following special options are
164		* recognized:
165		*
166		* - tag: string, defaults to "ul", the tag name of the item container tags. Set to false to disable container tag.
167		* See also {@see \Yiisoft\Html\Html::tag()}.
168		*
169		* {@see \Yiisoft\Html\Html::renderTagAttributes()} for details on how attributes are being rendered.
170		*
171		* @return self
172		*/
173	5	public function options(array $value): self
174		{
175	5	$new = clone $this;
176	5	$new->options = $value;
177	5	return $new;
178		}
179
180		/**
181		* Returns a new instance with the specified item template.
182		*
183		* @param string $value The template used to render each inactive item in the breadcrumbs.
184		* The token `{link}` will be replaced with the actual HTML link for each inactive item.
185		*
186		* @return self
187		*/
188	2	public function itemTemplate(string $value): self
189		{
190	2	$new = clone $this;
191	2	$new->itemTemplate = $value;
192	2	return $new;
193		}
194
195		/**
196		* Returns a new instance with the specified active item template.
197		*
198		* @param string $value The template used to render each active item in the breadcrumbs.
199		* The token `{link}` will be replaced with the actual HTML link for each active item.
200		*
201		* @return self
202		*/
203	4	public function activeItemTemplate(string $value): self
204		{
205	4	$new = clone $this;
206	4	$new->activeItemTemplate = $value;
207	4	return $new;
208		}
209
210		/**
211		* Renders the widget.
212		*
213		* @throws JsonException
214		*
215		* @return string The result of widget execution to be outputted.
216		*/
217	9	protected function run(): string
218		{
219	9	if (empty($this->items)) {
220	1	return '';
221		}
222
223	8	$items = [];
224
225	8	if ($this->withoutHomeItem === false) {
226	3	$items[] = $this->renderHomeLink();
227		}
228
229	8	foreach ($this->items as $item) {
230	8	if (!is_array($item)) {
231	7	$item = ['label' => $item];
232		}
233
234	8	if (!empty($item)) {
235	8	$items[] = $this->renderItem(
236	8	$item,
237	8	isset($item['url']) ? $this->itemTemplate : $this->activeItemTemplate
238		);
239		}
240		}
241
242	7	$body = implode('', $items);
243
244	7	return empty($this->tag)
245	2	? $body
246	7	: Html::tag($this->tag, $body, $this->options)->encode(false)->render()
247		;
248		}
249
250		/**
251		* Renders a single breadcrumb item.
252		*
253		* @param array $item The item to be rendered. It must contain the "label" element. The "url" element is optional.
254		* @param string $template the template to be used to rendered the link. The token "{link}" will be replaced by the
255		* link.
256		*
257		* @throws InvalidArgumentException\|JsonException if `$item` does not have "label" element.
258		*
259		* @return string The rendering result.
260		*/
261	8	private function renderItem(array $item, string $template): string
262		{
263	8	if (!array_key_exists('label', $item)) {
264	1	throw new InvalidArgumentException('The "label" element is required for each link.');
265		}
266
267	7	$encodeLabel = ArrayHelper::remove($item, 'encode', $this->encodeLabels);
268	7	$label = $encodeLabel ? Html::encode($item['label']) : $item['label'];
269
270	7	if (isset($item['template'])) {
271		$template = $item['template'];
272		}
273
274	7	if (isset($item['url'])) {
275	2	$options = $item;
276	2	unset($options['template'], $options['label'], $options['url']);
277	2	$item = Html::a($label, $item['url'], $options);
278		} else {
279	7	$item = $label;
280		}
281
282	7	return strtr($template, ['{link}' => $item]);
283		}
284
285		/**
286		* Renders a home item.
287		*
288		* @throws JsonException
289		*
290		* @return string The rendering result.
291		*/
292	3	private function renderHomeLink(): string
293		{
294	3	if ($this->homeItem === []) {
295	2	$this->homeItem = ['label' => 'Home', 'url' => '/'];
296		}
297
298	3	return $this->renderItem($this->homeItem, $this->itemTemplate);
299		}
300		}
301

yiisoft / yii-widgets

Push — master ( b3e37a...994985 )

Breadcrumbs::homeItem() A

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