Breadcrumbs::getContent() - Code Metrics - Inspection of "Widgets" - yiisoft/view - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#52)

by Alexander

created 2019-09-04 21:35 UTC

Breadcrumbs::getContent() B

↳ Parent: Breadcrumbs

Complexity

Conditions	9
Paths	16

Size

Total Lines	28
Code Lines	16

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	16
CRAP Score	9

Importance

Changes

Metric	Value
eloc	16
dl	0
loc	28
ccs	16
cts	16
cp	1
rs	8.0555
c	0
b	0
f	0
cc	9
nc	16
nop	0
crap	9

<?php

namespace Yiisoft\Widget;

use Yiisoft\Html\Html;
use Yiisoft\Arrays\ArrayHelper;

/**
 * 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 links} property, which specifies the links to be displayed. For
 * example,
 *
 * ```php
 * // $this is the view object currently being used
 * echo Breadcrumbs::widget()
 *     -> itemTemplate() => "<li><i>{link}</i></li>\n", // template for all links
 *     -> links() => [
 *         [
 *             'label' => 'Post Category',
 *             'url' => 'post-category/view?id=10',
 *             'template' => "<li><b>{link}</b></li>\n", // template for this link only
 *         ],
 *         ['label' => 'Sample Post', 'url' => 'post/edit?id=1',
 *         'Edit',
 *     ];
 * ```
 *
 * Because breadcrumbs usually appears in nearly every page of a website, you may consider placing it in a layout view.
 * You can use a view parameter (e.g. `$this->params['breadcrumbs']`) to configure the links in different views. In the
 * layout view, you assign this view parameter to the {@see links} property like the following:
 *
 * ```php
 * // $this is the view object currently being used
 * echo Breadcrumbs::widget()
 *     ->links() => isset($this->params['breadcrumbs']) ? $this->params['breadcrumbs'] : [];
 * ```
 *
 * @method static Breadcrumbs widget()
 */
class Breadcrumbs extends Widget
{
    /**
     * @var string the name of the breadcrumb container tag.
     */
    private $tag = 'ul';

    /**
     * @var array the HTML attributes for the breadcrumb container tag.
     *
     * {@see \Yiisoft\Html\Html::renderTagAttributes()} for details on how attributes are being rendered.
     */
    private $options = ['class' => 'breadcrumb'];

    /**
     * @var bool whether to HTML-encode the link labels.
     */
    private $encodeLabels = true;

    /**
     * @var bool the first hyperlink in the breadcrumbs (called home link). If this property is true, it will default
     *           to a link pointing to HomeUrl '\' with the label 'Home'. If this property is false, the home link will
     *           not be rendered.
     */
    private $homeLink = true;

    /**
     * @var array $homeUrlLink
     */
    private $homeUrlLink;

    /**
     * @var array list of links 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, will be processed by Url::to()
     *     '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,
     * ]
     * ```
     */
    private $links = [];

    /**
     * @var string 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.
     */
    private $itemTemplate = "<li>{link}</li>\n";

    /**
     * @var string 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.
     */
    private $activeItemTemplate = "<li class=\"active\">{link}</li>\n";

    /**
     * Renders the widget.
     *
     * @return string the result of widget execution to be outputted.
     */
    public function getContent(): string
    {
        if (empty($this->links)) {
            return '';
        }

        $links = [];

        if ($this->homeLink === true) {
            $links[] = $this->renderItem([
                'label' => 'Home',
                'url'   => '/',
            ], $this->itemTemplate);
        } elseif (!empty($this->homeUrlLink)) {
            $links[] = $this->renderItem($this->homeUrlLink, $this->itemTemplate);
        }

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

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

        return Html::tag(!empty($this->tag) ? $this->tag : false, implode('', $links), $this->options);
    }

    /**
     * Renders a single breadcrumb item.
     *
     * @param array  $link the link to be rendered. It must contain the "label" element. The "url" element is optional.
     * @param string $template the template to be used to rendered the link. The token "{link}" will be replaced by the
     *                         link.
     *
     * @throws \InvalidArgumentException if `$link` does not have "label" element.
     *
     * @return string the rendering result
     */
    protected function renderItem(array $link, string $template): string
    {
        $encodeLabel = ArrayHelper::remove($link, 'encode', $this->encodeLabels);
        $label = $encodeLabel ? Html::encode($link['label']) : $link['label'];

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

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

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

    /**
     * {@see tag}
     *
     * @param string $value
     *
     * @return $this
     */
    public function tag(string $value): self
    {
        $this->tag = $value;

        return $this;
    }

    /**
     * {@see options}
     *
     * @param array $value
     *
     * @return $this
     */
    public function options(array $value): self
    {
        $this->options = $value;

        return $this;
    }

    /**
     * {@see encodeLabel}
     *
     * @param boolean $value
     *
     * @return $this
     */
    public function encodeLabels(bool $value): self
    {
        $this->encodeLabels = $value;

        return $this;
    }

    /**
     * {@see homeLink}
     *
     * @param bool $value
     *
     * @return $this
     */
    public function homeLink(bool $value): self
    {
        $this->homeLink = $value;

        return $this;
    }

    /**
     * {@see links}
     *
     * @param array $value
     *
     * @return $this
     */
    public function homeUrlLink(array $value): self
    {
        $this->homeUrlLink = $value;

        return $this;
    }

    /**
     * {@see links}
     *
     * @param array $value
     *
     * @return $this
     */
    public function links(array $value): self
    {
        if (!array_key_exists('label', $value)) {
            throw new \InvalidArgumentException('The "label" element is required for each link.');
        }

        $this->links = $value;

        return $this;
    }

    /**
     * {@see itemTemplate}
     *
     * @param string $value
     *
     * @return $this
     */
    public function itemTemplate(string $value): self
    {
        $this->itemTemplate = $value;

        return $this;
    }

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

        return $this;
    }

    public function __toString()
    {
        return $this->run();
    }
}


1		<?php
2
3		namespace Yiisoft\Widget;
4
5		use Yiisoft\Html\Html;
6		use Yiisoft\Arrays\ArrayHelper;
7
8		/**
9		* Breadcrumbs displays a list of links indicating the position of the current page in the whole site hierarchy.
10		*
11		* For example, breadcrumbs like "Home / Sample Post / Edit" means the user is viewing an edit page for the
12		* "Sample Post". He can click on "Sample Post" to view that page, or he can click on "Home" to return to the homepage.
13		*
14		* To use Breadcrumbs, you need to configure its {@see links} property, which specifies the links to be displayed. For
15		* example,
16		*
17		* ```php
18		* // $this is the view object currently being used
19		* echo Breadcrumbs::widget()
20		* -> itemTemplate() => "<li><i>{link}</i></li>\n", // template for all links
21		* -> links() => [
22		* [
23		* 'label' => 'Post Category',
24		* 'url' => 'post-category/view?id=10',
25		* 'template' => "<li><b>{link}</b></li>\n", // template for this link only
26		* ],
27		* ['label' => 'Sample Post', 'url' => 'post/edit?id=1',
28		* 'Edit',
29		* ];
30		* ```
31		*
32		* Because breadcrumbs usually appears in nearly every page of a website, you may consider placing it in a layout view.
33		* You can use a view parameter (e.g. `$this->params['breadcrumbs']`) to configure the links in different views. In the
34		* layout view, you assign this view parameter to the {@see links} property like the following:
35		*
36		* ```php
37		* // $this is the view object currently being used
38		* echo Breadcrumbs::widget()
39		* ->links() => isset($this->params['breadcrumbs']) ? $this->params['breadcrumbs'] : [];
40		* ```
41		*
42		* @method static Breadcrumbs widget()
43		*/
44		class Breadcrumbs extends Widget
45		{
46		/**
47		* @var string the name of the breadcrumb container tag.
48		*/
49		private $tag = 'ul';
50
51		/**
52		* @var array the HTML attributes for the breadcrumb container tag.
53		*
54		* {@see \Yiisoft\Html\Html::renderTagAttributes()} for details on how attributes are being rendered.
55		*/
56		private $options = ['class' => 'breadcrumb'];
57
58		/**
59		* @var bool whether to HTML-encode the link labels.
60		*/
61		private $encodeLabels = true;
62
63		/**
64		* @var bool the first hyperlink in the breadcrumbs (called home link). If this property is true, it will default
65		* to a link pointing to HomeUrl '\' with the label 'Home'. If this property is false, the home link will
66		* not be rendered.
67		*/
68		private $homeLink = true;
69
70		/**
71		* @var array $homeUrlLink
72		*/
73		private $homeUrlLink;
74
75		/**
76		* @var array list of links to appear in the breadcrumbs. If this property is empty, the widget will not render
77		* anything. Each array element represents a single link in the breadcrumbs with the following structure:
78		*
79		* ```php
80		* [
81		* 'label' => 'label of the link', // required
82		* 'url' => 'url of the link', // optional, will be processed by Url::to()
83		* 'template' => 'own template of the item', // optional, if not set $this->itemTemplate will be used
84		* ]
85		* ```
86		*
87		* If a link is active, you only need to specify its "label", and instead of writing `['label' => $label]`, you may
88		* simply use `$label`.
89		*
90		* Additional array elements for each link will be treated as the HTML attributes for the hyperlink tag.
91		* For example, the following link specification will generate a hyperlink with CSS class `external`:
92		*
93		* ```php
94		* [
95		* 'label' => 'demo',
96		* 'url' => 'http://example.com',
97		* 'class' => 'external',
98		* ]
99		* ```
100		*
101		* Each individual link can override global {@see encodeLabels} param like the following:
102		*
103		* ```php
104		* [
105		* 'label' => '<strong>Hello!</strong>',
106		* 'encode' => false,
107		* ]
108		* ```
109		*/
110		private $links = [];
111
112		/**
113		* @var string the template used to render each inactive item in the breadcrumbs. The token `{link}` will be
114		* replaced with the actual HTML link for each inactive item.
115		*/
116		private $itemTemplate = "<li>{link}</li>\n";
117
118		/**
119		* @var string the template used to render each active item in the breadcrumbs. The token `{link}` will be replaced
120		* with the actual HTML link for each active item.
121		*/
122		private $activeItemTemplate = "<li class=\"active\">{link}</li>\n";
123
124		/**
125		* Renders the widget.
126		*
127		* @return string the result of widget execution to be outputted.
128		*/
129	8	public function getContent(): string
130		{
131	8	if (empty($this->links)) {
132	1	return '';
133		}
134
135	7	$links = [];
136
137	7	if ($this->homeLink === true) {
138	2	$links[] = $this->renderItem([
139	2	'label' => 'Home',
140		'url' => '/',
141	2	], $this->itemTemplate);
142	5	} elseif (!empty($this->homeUrlLink)) {
143	1	$links[] = $this->renderItem($this->homeUrlLink, $this->itemTemplate);
144		}
145
146	7	foreach ($this->links as $link) {
147	7	if (!is_array($link)) {
148	7	$link = ['label' => $link];
149		}
150
151	7	if (!empty($link)) {
152	7	$links[] = $this->renderItem($link, isset($link['url']) ? $this->itemTemplate : $this->activeItemTemplate);
153		}
154		}
155
156	7	return Html::tag(!empty($this->tag) ? $this->tag : false, implode('', $links), $this->options);
157		}
158
159		/**
160		* Renders a single breadcrumb item.
161		*
162		* @param array $link the link to be rendered. It must contain the "label" element. The "url" element is optional.
163		* @param string $template the template to be used to rendered the link. The token "{link}" will be replaced by the
164		* link.
165		*
166		* @throws \InvalidArgumentException if `$link` does not have "label" element.
167		*
168		* @return string the rendering result
169		*/
170	7	protected function renderItem(array $link, string $template): string
171		{
172	7	$encodeLabel = ArrayHelper::remove($link, 'encode', $this->encodeLabels);
173	7	$label = $encodeLabel ? Html::encode($link['label']) : $link['label'];
174
175	7	if (isset($link['template'])) {
176		$template = $link['template'];
177		}
178
179	7	if (isset($link['url'])) {
180	2	$options = $link;
181	2	unset($options['template'], $options['label'], $options['url']);
182	2	$link = Html::a($label, $link['url'], $options);
183		} else {
184	7	$link = $label;
185		}
186
187	7	return strtr($template, ['{link}' => $link]);
188		}
189
190		/**
191		* {@see tag}
192		*
193		* @param string $value
194		*
195		* @return $this
196		*/
197	3	public function tag(string $value): self
198		{
199	3	$this->tag = $value;
200
201	3	return $this;
202		}
203
204		/**
205		* {@see options}
206		*
207		* @param array $value
208		*
209		* @return $this
210		*/
211	4	public function options(array $value): self
212		{
213	4	$this->options = $value;
214
215	4	return $this;
216		}
217
218		/**
219		* {@see encodeLabel}
220		*
221		* @param boolean $value
222		*
223		* @return $this
224		*/
225	1	public function encodeLabels(bool $value): self
226		{
227	1	$this->encodeLabels = $value;
228
229	1	return $this;
230		}
231
232		/**
233		* {@see homeLink}
234		*
235		* @param bool $value
236		*
237		* @return $this
238		*/
239	7	public function homeLink(bool $value): self
240		{
241	7	$this->homeLink = $value;
242
243	7	return $this;
244		}
245
246		/**
247		* {@see links}
248		*
249		* @param array $value
250		*
251		* @return $this
252		*/
253	1	public function homeUrlLink(array $value): self
254		{
255	1	$this->homeUrlLink = $value;
256
257	1	return $this;
258		}
259
260		/**
261		* {@see links}
262		*
263		* @param array $value
264		*
265		* @return $this
266		*/
267	8	public function links(array $value): self
268		{
269	8	if (!array_key_exists('label', $value)) {
270	1	throw new \InvalidArgumentException('The "label" element is required for each link.');
271		}
272
273	7	$this->links = $value;
274
275	7	return $this;
276		}
277
278		/**
279		* {@see itemTemplate}
280		*
281		* @param string $value
282		*
283		* @return $this
284		*/
285	1	public function itemTemplate(string $value): self
286		{
287	1	$this->itemTemplate = $value;
288
289	1	return $this;
290		}
291
292		/**
293		* {@see activeItemTemplate}
294		*
295		* @param string $value
296		*
297		* @return $this
298		*/
299	3	public function activeItemTemplate(string $value): self
300		{
301	3	$this->activeItemTemplate = $value;
302
303	3	return $this;
304		}
305
306	8	public function __toString()
307		{
308	8	return $this->run();
309		}
310		}
311

yiisoft / view

Pull Request — master (#52)

Breadcrumbs::getContent() B

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