LinkRenderer::getLinkClasses() - Code Metrics - Inspection of "Daily Inspection: SkinTemplate: Set link classes o..." - wikimedia/mediawiki - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Branch — master (3f14ba)

unknown

created 2016-07-18 17:16 UTC

LinkRenderer::getLinkClasses() B

↳ Parent: LinkRenderer

Complexity

Conditions	6
Paths	4

Size

Total Lines	20
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	6
eloc	10
nc	4
nop	1
dl	0
loc	20
rs	8.8571
c	0
b	0
f	0

<?php
/**
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @license GPL-2.0+
 * @author Kunal Mehta <[email protected]>
 */
namespace MediaWiki\Linker;

use DummyLinker;
use Hooks;
use Html;
use HtmlArmor;
use LinkCache;
use Linker;
use MediaWiki\MediaWikiServices;
use MWNamespace;
use Sanitizer;
use Title;
use TitleFormatter;

/**
 * Class that generates HTML <a> links for pages.
 *
 * @since 1.28
 */
class LinkRenderer {

	/**
	 * Whether to force the pretty article path
	 *
	 * @var bool
	 */
	private $forceArticlePath = false;

	/**
	 * A PROTO_* constant or false
	 *
	 * @var string|bool|int
	 */
	private $expandUrls = false;

	/**
	 * @var int
	 */
	private $stubThreshold = 0;

	/**
	 * @var TitleFormatter
	 */
	private $titleFormatter;

	/**
	 * @var LinkCache
	 */
	private $linkCache;

	/**
	 * Whether to run the legacy Linker hooks
	 *
	 * @var bool
	 */
	private $runLegacyBeginHook = true;

	/**
	 * @param TitleFormatter $titleFormatter
	 * @param LinkCache $linkCache
	 */
	public function __construct( TitleFormatter $titleFormatter, LinkCache $linkCache ) {
		$this->titleFormatter = $titleFormatter;
		$this->linkCache = $linkCache;
	}

	/**
	 * @param bool $force
	 */
	public function setForceArticlePath( $force ) {
		$this->forceArticlePath = $force;
	}

	/**
	 * @return bool
	 */
	public function getForceArticlePath() {
		return $this->forceArticlePath;
	}

	/**
	 * @param string|bool|int $expand A PROTO_* constant or false
	 */
	public function setExpandURLs( $expand ) {
		$this->expandUrls = $expand;
	}

	/**
	 * @return string|bool|int a PROTO_* constant or false
	 */
	public function getExpandURLs() {
		return $this->expandUrls;
	}

	/**
	 * @param int $threshold
	 */
	public function setStubThreshold( $threshold ) {
		$this->stubThreshold = $threshold;
	}

	/**
	 * @return int
	 */
	public function getStubThreshold() {
		return $this->stubThreshold;
	}

	/**
	 * @param bool $run
	 */
	public function setRunLegacyBeginHook( $run ) {
		$this->runLegacyBeginHook = $run;
	}

	/**
	 * @param LinkTarget $target
	 * @param string|HtmlArmor|null $text
	 * @param array $extraAttribs
	 * @param array $query
	 * @return string
	 */
	public function makeLink(
		LinkTarget $target, $text = null, array $extraAttribs = [], array $query = []
	) {
		$title = Title::newFromLinkTarget( $target );
		if ( $title->isKnown() ) {
			return $this->makeKnownLink( $target, $text, $extraAttribs, $query );
		} else {
			return $this->makeBrokenLink( $target, $text, $extraAttribs, $query );
		}
	}

	/**
	 * Get the options in the legacy format
	 *
	 * @param bool $isKnown Whether the link is known or broken
	 * @return array
	 */
	private function getLegacyOptions( $isKnown ) {
		$options = [ 'stubThreshold' => $this->stubThreshold ];
		if ( $this->forceArticlePath ) {
			$options[] = 'forcearticlepath';
		}
		if ( $this->expandUrls === PROTO_HTTP ) {
			$options[] = 'http';
		} elseif ( $this->expandUrls === PROTO_HTTPS ) {
			$options[] = 'https';
		}

		$options[] = $isKnown ? 'known' : 'broken';

		return $options;
	}

	private function runBeginHook( LinkTarget $target, &$text, &$extraAttribs, &$query, $isKnown ) {
		$ret = null;
		if ( !Hooks::run( 'HtmlPageLinkRendererBegin',
			[ $this, $target, &$text, &$extraAttribs, &$query, &$ret ] )
		) {
			return $ret;
		}

		// Now run the legacy hook
		return $this->runLegacyBeginHook( $target, $text, $extraAttribs, $query, $isKnown );
	}

	private function runLegacyBeginHook( LinkTarget $target, &$text, &$extraAttribs, &$query,
		$isKnown
	) {
		if ( !$this->runLegacyBeginHook || !Hooks::isRegistered( 'LinkBegin' ) ) {
			// Disabled, or nothing registered
			return null;
		}

		$realOptions = $options = $this->getLegacyOptions( $isKnown );
		$ret = null;
		$dummy = new DummyLinker();
		$title = Title::newFromLinkTarget( $target );
		if ( $text !== null ) {
			$realHtml = $html = HtmlArmor::getHtml( $text );
		} else {
			$realHtml = $html = null;
		}
		if ( !Hooks::run( 'LinkBegin',
			[ $dummy, $title, &$html, &$extraAttribs, &$query, &$options, &$ret ] )
		) {
			return $ret;
		}

		if ( $html !== null && $html !== $realHtml ) {
			// &$html was modified, so re-armor it as $text
			$text = new HtmlArmor( $html );
		}

		// Check if they changed any of the options, hopefully not!
		if ( $options !== $realOptions ) {
			$factory = MediaWikiServices::getInstance()->getLinkRendererFactory();
			// They did, so create a separate instance and have that take over the rest
			$newRenderer = $factory->createFromLegacyOptions( $options );
			// Don't recurse the hook...
			$newRenderer->setRunLegacyBeginHook( false );
			if ( in_array( 'known', $options, true ) ) {
				return $newRenderer->makeKnownLink( $title, $text, $extraAttribs, $query );
			} elseif ( in_array( 'broken', $options, true ) ) {
				return $newRenderer->makeBrokenLink( $title, $text, $extraAttribs, $query );
			} else {
				return $newRenderer->makeLink( $title, $text, $extraAttribs, $query );
			}
		}

		return null;
	}

	/**
	 * If you have already looked up the proper CSS classes using LinkRenderer::getLinkClasses()
	 * or some other method, use this to avoid looking it up again.
	 *
	 * @param LinkTarget $target
	 * @param string|HtmlArmor|null $text
	 * @param string $classes CSS classes to add
	 * @param array $extraAttribs
	 * @param array $query
	 * @return string
	 */
	public function makePreloadedLink(
		LinkTarget $target, $text = null, $classes, array $extraAttribs = [], array $query = []
	) {
		// Run begin hook
		$ret = $this->runBeginHook( $target, $text, $extraAttribs, $query, true );
		if ( $ret !== null ) {
			return $ret;
		}
		$target = $this->normalizeTarget( $target );
		$url = $this->getLinkURL( $target, $query );
		$attribs = [ 'class' => $classes ];
		$prefixedText = $this->titleFormatter->getPrefixedText( $target );
		if ( $prefixedText !== '' ) {
			$attribs['title'] = $prefixedText;
		}

		$attribs = [
			'href' => $url,
		] + $this->mergeAttribs( $attribs, $extraAttribs );

		if ( $text === null ) {
			$text = $this->getLinkText( $target );
		}

		return $this->buildAElement( $target, $text, $attribs, true );
	}

	/**
	 * @param LinkTarget $target
	 * @param string|HtmlArmor|null $text
	 * @param array $extraAttribs
	 * @param array $query
	 * @return string
	 */
	public function makeKnownLink(
		LinkTarget $target, $text = null, array $extraAttribs = [], array $query = []
	) {
		$classes = [];
		if ( $target->isExternal() ) {
			$classes[] = 'extiw';
		}
		$colour = $this->getLinkClasses( $target );
		if ( $colour !== '' ) {
			$classes[] = $colour;
		}

		return $this->makePreloadedLink(
			$target,
			$text,
			$classes ? implode( ' ', $classes ) : '',
			$extraAttribs,
			$query
		);
	}

	/**
	 * @param LinkTarget $target
	 * @param string|HtmlArmor|null $text
	 * @param array $extraAttribs
	 * @param array $query
	 * @return string
	 */
	public function makeBrokenLink(
		LinkTarget $target, $text = null, array $extraAttribs = [], array $query = []
	) {
		// Run legacy hook
		$ret = $this->runBeginHook( $target, $text, $extraAttribs, $query, false );
		if ( $ret !== null ) {
			return $ret;
		}

		# We don't want to include fragments for broken links, because they
		# generally make no sense.
		if ( $target->hasFragment() ) {
			$target = $target->createFragmentTarget( '' );
		}
		$target = $this->normalizeTarget( $target );

		if ( !isset( $query['action'] ) && $target->getNamespace() !== NS_SPECIAL ) {
			$query['action'] = 'edit';
			$query['redlink'] = '1';
		}

		$url = $this->getLinkURL( $target, $query );
		$attribs = [ 'class' => 'new' ];
		$prefixedText = $this->titleFormatter->getPrefixedText( $target );
		if ( $prefixedText !== '' ) {
			// This ends up in parser cache!
			$attribs['title'] = wfMessage( 'red-link-title', $prefixedText )
				->inContentLanguage()
				->text();
		}

		$attribs = [
			'href' => $url,
		] + $this->mergeAttribs( $attribs, $extraAttribs );

		if ( $text === null ) {
			$text = $this->getLinkText( $target );
		}

		return $this->buildAElement( $target, $text, $attribs, false );
	}

	/**
	 * Builds the final <a> element
	 *
	 * @param LinkTarget $target
	 * @param string|HtmlArmor $text
	 * @param array $attribs
	 * @param bool $isKnown
	 * @return null|string
	 */
	private function buildAElement( LinkTarget $target, $text, array $attribs, $isKnown ) {
		$ret = null;
		if ( !Hooks::run( 'HtmlPageLinkRendererEnd',
			[ $this, $target, $isKnown, &$text, &$attribs, &$ret ] )
		) {
			return $ret;
		}

		$html = HtmlArmor::getHtml( $text );

		// Run legacy hook
		if ( Hooks::isRegistered( 'LinkEnd' ) ) {
			$dummy = new DummyLinker();
			$title = Title::newFromLinkTarget( $target );
			$options = $this->getLegacyOptions( $isKnown );
			if ( !Hooks::run( 'LinkEnd',
				[ $dummy, $title, $options, &$html, &$attribs, &$ret ] )
			) {
				return $ret;
			}
		}

		return Html::rawElement( 'a', $attribs, $html );
	}

	/**
	 * @param LinkTarget $target
	 * @return string non-escaped text
	 */
	private function getLinkText( LinkTarget $target ) {
		$prefixedText = $this->titleFormatter->getPrefixedText( $target );
		// If the target is just a fragment, with no title, we return the fragment
		// text.  Otherwise, we return the title text itself.
		if ( $prefixedText === '' && $target->hasFragment() ) {
			return $target->getFragment();
		}

		return $prefixedText;
	}

	private function getLinkURL( LinkTarget $target, array $query = [] ) {
		// TODO: Use a LinkTargetResolver service instead of Title
		$title = Title::newFromLinkTarget( $target );
		$proto = $this->expandUrls !== false
			? $this->expandUrls
			: PROTO_RELATIVE;
		if ( $this->forceArticlePath ) {
			$realQuery = $query;
			$query = [];
		} else {
			$realQuery = [];
		}
		$url = $title->getLinkURL( $query, false, $proto );

		if ( $this->forceArticlePath && $realQuery ) {
			$url = wfAppendQuery( $url, $realQuery );
		}

		return $url;
	}

	/**
	 * Normalizes the provided target
	 *
	 * @todo move the code from Linker actually here
	 * @param LinkTarget $target
	 * @return LinkTarget
	 */
	private function normalizeTarget( LinkTarget $target ) {
		return Linker::normaliseSpecialPage( $target );
	}

	/**
	 * Merges two sets of attributes
	 *
	 * @param array $defaults
	 * @param array $attribs
	 *
	 * @return array
	 */
	private function mergeAttribs( $defaults, $attribs ) {
		if ( !$attribs ) {
			return $defaults;
		}
		# Merge the custom attribs with the default ones, and iterate
		# over that, deleting all "false" attributes.
		$ret = [];
		$merged = Sanitizer::mergeAttributes( $defaults, $attribs );
		foreach ( $merged as $key => $val ) {
			# A false value suppresses the attribute
			if ( $val !== false ) {
				$ret[$key] = $val;
			}
		}
		return $ret;
	}

	/**
	 * Return the CSS classes of a known link
	 *
	 * @param LinkTarget $target
	 * @return string CSS class
	 */
	public function getLinkClasses( LinkTarget $target ) {
		// Make sure the target is in the cache
		$id = $this->linkCache->addLinkObj( $target );
		if ( $id == 0 ) {
			// Doesn't exist
			return '';
		}

		if ( $this->linkCache->getGoodLinkFieldObj( $target, 'redirect' ) ) {
			# Page is a redirect
			return 'mw-redirect';
		} elseif ( $this->stubThreshold > 0 && MWNamespace::isContent( $target->getNamespace() )
			&& $this->linkCache->getGoodLinkFieldObj( $target, 'length' ) < $this->stubThreshold
		) {
			# Page is a stub
			return 'stub';
		}

		return '';
	}
}


1			<?php
2			/**
3			* This program is free software; you can redistribute it and/or modify
4			* it under the terms of the GNU General Public License as published by
5			* the Free Software Foundation; either version 2 of the License, or
6			* (at your option) any later version.
7			*
8			* This program is distributed in the hope that it will be useful,
9			* but WITHOUT ANY WARRANTY; without even the implied warranty of
10			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11			* GNU General Public License for more details.
12			*
13			* You should have received a copy of the GNU General Public License along
14			* with this program; if not, write to the Free Software Foundation, Inc.,
15			* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
16			* http://www.gnu.org/copyleft/gpl.html
17			*
18			* @file
19			* @license GPL-2.0+
20			* @author Kunal Mehta <[email protected]>
21			*/
22			namespace MediaWiki\Linker;
23
24			use DummyLinker;
25			use Hooks;
26			use Html;
27			use HtmlArmor;
28			use LinkCache;
29			use Linker;
30			use MediaWiki\MediaWikiServices;
31			use MWNamespace;
32			use Sanitizer;
33			use Title;
34			use TitleFormatter;
35
36			/**
37			* Class that generates HTML <a> links for pages.
38			*
39			* @since 1.28
40			*/
41			class LinkRenderer {
42
43			/**
44			* Whether to force the pretty article path
45			*
46			* @var bool
47			*/
48			private $forceArticlePath = false;
49
50			/**
51			* A PROTO_* constant or false
52			*
53			* @var string\|bool\|int
54			*/
55			private $expandUrls = false;
56
57			/**
58			* @var int
59			*/
60			private $stubThreshold = 0;
61
62			/**
63			* @var TitleFormatter
64			*/
65			private $titleFormatter;
66
67			/**
68			* @var LinkCache
69			*/
70			private $linkCache;
71
72			/**
73			* Whether to run the legacy Linker hooks
74			*
75			* @var bool
76			*/
77			private $runLegacyBeginHook = true;
78
79			/**
80			* @param TitleFormatter $titleFormatter
81			* @param LinkCache $linkCache
82			*/
83			public function __construct( TitleFormatter $titleFormatter, LinkCache $linkCache ) {
84			$this->titleFormatter = $titleFormatter;
85			$this->linkCache = $linkCache;
86			}
87
88			/**
89			* @param bool $force
90			*/
91			public function setForceArticlePath( $force ) {
92			$this->forceArticlePath = $force;
93			}
94
95			/**
96			* @return bool
97			*/
98			public function getForceArticlePath() {
99			return $this->forceArticlePath;
100			}
101
102			/**
103			* @param string\|bool\|int $expand A PROTO_* constant or false
104			*/
105			public function setExpandURLs( $expand ) {
106			$this->expandUrls = $expand;
107			}
108
109			/**
110			* @return string\|bool\|int a PROTO_* constant or false
111			*/
112			public function getExpandURLs() {
113			return $this->expandUrls;
114			}
115
116			/**
117			* @param int $threshold
118			*/
119			public function setStubThreshold( $threshold ) {
120			$this->stubThreshold = $threshold;
121			}
122
123			/**
124			* @return int
125			*/
126			public function getStubThreshold() {
127			return $this->stubThreshold;
128			}
129
130			/**
131			* @param bool $run
132			*/
133			public function setRunLegacyBeginHook( $run ) {
134			$this->runLegacyBeginHook = $run;
135			}
136
137			/**
138			* @param LinkTarget $target
139			* @param string\|HtmlArmor\|null $text
140			* @param array $extraAttribs
141			* @param array $query
142			* @return string
143			*/
144			public function makeLink(
145			LinkTarget $target, $text = null, array $extraAttribs = [], array $query = []
146			) {
147			$title = Title::newFromLinkTarget( $target );
148			if ( $title->isKnown() ) {
149			return $this->makeKnownLink( $target, $text, $extraAttribs, $query );
150			} else {
151			return $this->makeBrokenLink( $target, $text, $extraAttribs, $query );
152			}
153			}
154
155			/**
156			* Get the options in the legacy format
157			*
158			* @param bool $isKnown Whether the link is known or broken
159			* @return array
160			*/
161			private function getLegacyOptions( $isKnown ) {
162			$options = [ 'stubThreshold' => $this->stubThreshold ];
163			if ( $this->forceArticlePath ) {
164			$options[] = 'forcearticlepath';
165			}
166			if ( $this->expandUrls === PROTO_HTTP ) {
167			$options[] = 'http';
168			} elseif ( $this->expandUrls === PROTO_HTTPS ) {
169			$options[] = 'https';
170			}
171
172			$options[] = $isKnown ? 'known' : 'broken';
173
174			return $options;
175			}
176
177			private function runBeginHook( LinkTarget $target, &$text, &$extraAttribs, &$query, $isKnown ) {
178			$ret = null;
179			if ( !Hooks::run( 'HtmlPageLinkRendererBegin',
180			[ $this, $target, &$text, &$extraAttribs, &$query, &$ret ] )
181			) {
182			return $ret;
183			}
184
185			// Now run the legacy hook
186			return $this->runLegacyBeginHook( $target, $text, $extraAttribs, $query, $isKnown );
187			}
188
189			private function runLegacyBeginHook( LinkTarget $target, &$text, &$extraAttribs, &$query,
190			$isKnown
191			) {
192			if ( !$this->runLegacyBeginHook \|\| !Hooks::isRegistered( 'LinkBegin' ) ) {
193			// Disabled, or nothing registered
194			return null;
195			}
196
197			$realOptions = $options = $this->getLegacyOptions( $isKnown );
198			$ret = null;
199			$dummy = new DummyLinker();
200			$title = Title::newFromLinkTarget( $target );
201			if ( $text !== null ) {
202			$realHtml = $html = HtmlArmor::getHtml( $text );
203			} else {
204			$realHtml = $html = null;
205			}
206			if ( !Hooks::run( 'LinkBegin',
207			[ $dummy, $title, &$html, &$extraAttribs, &$query, &$options, &$ret ] )
208			) {
209			return $ret;
210			}
211
212			if ( $html !== null && $html !== $realHtml ) {
213			// &$html was modified, so re-armor it as $text
214			$text = new HtmlArmor( $html );
215			}
216
217			// Check if they changed any of the options, hopefully not!
218			if ( $options !== $realOptions ) {
219			$factory = MediaWikiServices::getInstance()->getLinkRendererFactory();
220			// They did, so create a separate instance and have that take over the rest
221			$newRenderer = $factory->createFromLegacyOptions( $options );
222			// Don't recurse the hook...
223			$newRenderer->setRunLegacyBeginHook( false );
224			if ( in_array( 'known', $options, true ) ) {
225			return $newRenderer->makeKnownLink( $title, $text, $extraAttribs, $query );
226			} elseif ( in_array( 'broken', $options, true ) ) {
227			return $newRenderer->makeBrokenLink( $title, $text, $extraAttribs, $query );
228			} else {
229			return $newRenderer->makeLink( $title, $text, $extraAttribs, $query );
230			}
231			}
232
233			return null;
234			}
235
236			/**
237			* If you have already looked up the proper CSS classes using LinkRenderer::getLinkClasses()
238			* or some other method, use this to avoid looking it up again.
239			*
240			* @param LinkTarget $target
241			* @param string\|HtmlArmor\|null $text
242			* @param string $classes CSS classes to add
243			* @param array $extraAttribs
244			* @param array $query
245			* @return string
246			*/
247			public function makePreloadedLink(
248			LinkTarget $target, $text = null, $classes, array $extraAttribs = [], array $query = []
249			) {
250			// Run begin hook
251			$ret = $this->runBeginHook( $target, $text, $extraAttribs, $query, true );
252			if ( $ret !== null ) {
253			return $ret;
254			}
255			$target = $this->normalizeTarget( $target );
256			$url = $this->getLinkURL( $target, $query );
257			$attribs = [ 'class' => $classes ];
258			$prefixedText = $this->titleFormatter->getPrefixedText( $target );
259			if ( $prefixedText !== '' ) {
260			$attribs['title'] = $prefixedText;
261			}
262
263			$attribs = [
264			'href' => $url,
265			] + $this->mergeAttribs( $attribs, $extraAttribs );
266
267			if ( $text === null ) {
268			$text = $this->getLinkText( $target );
269			}
270
271			return $this->buildAElement( $target, $text, $attribs, true );
272			}
273
274			/**
275			* @param LinkTarget $target
276			* @param string\|HtmlArmor\|null $text
277			* @param array $extraAttribs
278			* @param array $query
279			* @return string
280			*/
281			public function makeKnownLink(
282			LinkTarget $target, $text = null, array $extraAttribs = [], array $query = []
283			) {
284			$classes = [];
285			if ( $target->isExternal() ) {
286			$classes[] = 'extiw';
287			}
288			$colour = $this->getLinkClasses( $target );
289			if ( $colour !== '' ) {
290			$classes[] = $colour;
291			}
292
293			return $this->makePreloadedLink(
294			$target,
295			$text,
296			$classes ? implode( ' ', $classes ) : '',
297			$extraAttribs,
298			$query
299			);
300			}
301
302			/**
303			* @param LinkTarget $target
304			* @param string\|HtmlArmor\|null $text
305			* @param array $extraAttribs
306			* @param array $query
307			* @return string
308			*/
309			public function makeBrokenLink(
310			LinkTarget $target, $text = null, array $extraAttribs = [], array $query = []
311			) {
312			// Run legacy hook
313			$ret = $this->runBeginHook( $target, $text, $extraAttribs, $query, false );
314			if ( $ret !== null ) {
315			return $ret;
316			}
317
318			# We don't want to include fragments for broken links, because they
319			# generally make no sense.
320			if ( $target->hasFragment() ) {
321			$target = $target->createFragmentTarget( '' );
322			}
323			$target = $this->normalizeTarget( $target );
324
325			if ( !isset( $query['action'] ) && $target->getNamespace() !== NS_SPECIAL ) {
326			$query['action'] = 'edit';
327			$query['redlink'] = '1';
328			}
329
330			$url = $this->getLinkURL( $target, $query );
331			$attribs = [ 'class' => 'new' ];
332			$prefixedText = $this->titleFormatter->getPrefixedText( $target );
333			if ( $prefixedText !== '' ) {
334			// This ends up in parser cache!
335			$attribs['title'] = wfMessage( 'red-link-title', $prefixedText )
336			->inContentLanguage()
337			->text();
338			}
339
340			$attribs = [
341			'href' => $url,
342			] + $this->mergeAttribs( $attribs, $extraAttribs );
343
344			if ( $text === null ) {
345			$text = $this->getLinkText( $target );
346			}
347
348			return $this->buildAElement( $target, $text, $attribs, false );
349			}
350
351			/**
352			* Builds the final <a> element
353			*
354			* @param LinkTarget $target
355			* @param string\|HtmlArmor $text
356			* @param array $attribs
357			* @param bool $isKnown
358			* @return null\|string
359			*/
360			private function buildAElement( LinkTarget $target, $text, array $attribs, $isKnown ) {
361			$ret = null;
362			if ( !Hooks::run( 'HtmlPageLinkRendererEnd',
363			[ $this, $target, $isKnown, &$text, &$attribs, &$ret ] )
364			) {
365			return $ret;
366			}
367
368			$html = HtmlArmor::getHtml( $text );
369
370			// Run legacy hook
371			if ( Hooks::isRegistered( 'LinkEnd' ) ) {
372			$dummy = new DummyLinker();
373			$title = Title::newFromLinkTarget( $target );
374			$options = $this->getLegacyOptions( $isKnown );
375			if ( !Hooks::run( 'LinkEnd',
376			[ $dummy, $title, $options, &$html, &$attribs, &$ret ] )
377			) {
378			return $ret;
379			}
380			}
381
382			return Html::rawElement( 'a', $attribs, $html );
383			}
384
385			/**
386			* @param LinkTarget $target
387			* @return string non-escaped text
388			*/
389			private function getLinkText( LinkTarget $target ) {
390			$prefixedText = $this->titleFormatter->getPrefixedText( $target );
391			// If the target is just a fragment, with no title, we return the fragment
392			// text. Otherwise, we return the title text itself.
393			if ( $prefixedText === '' && $target->hasFragment() ) {
394			return $target->getFragment();
395			}
396
397			return $prefixedText;
398			}
399
400			private function getLinkURL( LinkTarget $target, array $query = [] ) {
401			// TODO: Use a LinkTargetResolver service instead of Title
402			$title = Title::newFromLinkTarget( $target );
403			$proto = $this->expandUrls !== false
404			? $this->expandUrls
405			: PROTO_RELATIVE;
406			if ( $this->forceArticlePath ) {
407			$realQuery = $query;
408			$query = [];
409			} else {
410			$realQuery = [];
411			}
412			$url = $title->getLinkURL( $query, false, $proto );
413
414			if ( $this->forceArticlePath && $realQuery ) {
415			$url = wfAppendQuery( $url, $realQuery );
416			}
417
418			return $url;
419			}
420
421			/**
422			* Normalizes the provided target
423			*
424			* @todo move the code from Linker actually here
425			* @param LinkTarget $target
426			* @return LinkTarget
427			*/
428			private function normalizeTarget( LinkTarget $target ) {
429			return Linker::normaliseSpecialPage( $target );
430			}
431
432			/**
433			* Merges two sets of attributes
434			*
435			* @param array $defaults
436			* @param array $attribs
437			*
438			* @return array
439			*/
440			private function mergeAttribs( $defaults, $attribs ) {
441			if ( !$attribs ) {
442			return $defaults;
443			}
444			# Merge the custom attribs with the default ones, and iterate
445			# over that, deleting all "false" attributes.
446			$ret = [];
447			$merged = Sanitizer::mergeAttributes( $defaults, $attribs );
448			foreach ( $merged as $key => $val ) {
449			# A false value suppresses the attribute
450			if ( $val !== false ) {
451			$ret[$key] = $val;
452			}
453			}
454			return $ret;
455			}
456
457			/**
458			* Return the CSS classes of a known link
459			*
460			* @param LinkTarget $target
461			* @return string CSS class
462			*/
463			public function getLinkClasses( LinkTarget $target ) {
464			// Make sure the target is in the cache
465			$id = $this->linkCache->addLinkObj( $target );
466			if ( $id == 0 ) {
467			// Doesn't exist
468			return '';
469			}
470
471			if ( $this->linkCache->getGoodLinkFieldObj( $target, 'redirect' ) ) {
472			# Page is a redirect
473			return 'mw-redirect';
474			} elseif ( $this->stubThreshold > 0 && MWNamespace::isContent( $target->getNamespace() )
475			&& $this->linkCache->getGoodLinkFieldObj( $target, 'length' ) < $this->stubThreshold
476			) {
477			# Page is a stub
478			return 'stub';
479			}
480
481			return '';
482			}
483			}
484

wikimedia / mediawiki

Branch — master (3f14ba)

LinkRenderer::getLinkClasses() B

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