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<?php
/**
* A service for generating links from page titles
*
* 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+
* @author Daniel Kinzler
*/
/**
* A service for generating links from page titles.
*
* @see https://www.mediawiki.org/wiki/Requests_for_comment/TitleValue
*/
class MediaWikiPageLinkRenderer implements PageLinkRenderer {
/**
* @var TitleFormatter
*/
protected $formatter;
/**
* @var string
*/
protected $baseUrl;
/**
* @note $formatter and $baseUrl are currently not used for generating links,
* since we still rely on the Linker class to generate the actual HTML.
* Once this is reversed so that Linker becomes a legacy interface to
* HtmlPageLinkRenderer, we will be using them, so it seems prudent to
* already declare the dependency and inject them.
*
* @param TitleFormatter $formatter Formatter for generating the target title string
* @param string $baseUrl (currently unused, pending refactoring of Linker).
* Defaults to $wgArticlePath.
*/
public function __construct( TitleFormatter $formatter, $baseUrl = null ) {
if ( $baseUrl === null ) {
$baseUrl = $GLOBALS['wgArticlePath'];
}
$this->formatter = $formatter;
$this->baseUrl = $baseUrl;
}
/**
* Returns the (partial) URL for the given page (including any section identifier).
*
* @param TitleValue $page The link's target
* @param array $params Any additional URL parameters.
*
* @return string
*/
public function getPageUrl( TitleValue $page, $params = array() ) {
//TODO: move the code from Linker::linkUrl here!
//The below is just a rough estimation!
$name = $this->formatter->getPrefixedText( $page );
$name = str_replace( ' ', '_', $name );
$name = wfUrlencode( $name );
$url = $this->baseUrl . $name;
if ( $params ) {
$separator = ( strpos( $url, '?' ) ) ? '&' : '?';
$url .= $separator . wfArrayToCgi( $params );
}
$fragment = $page->getFragment();
if ( $fragment !== '' ) {
$url = $url . '#' . wfUrlencode( $fragment );
}
return $url;
}
/**
* Returns an HTML link to the given page, using the given surface text.
*
* @param TitleValue $page The link's target
* @param string $text The link's surface text (will be derived from $page if not given).
*
* @return string
*/
public function renderHtmlLink( TitleValue $page, $text = null ) {
if ( $text === null ) {
$text = $this->formatter->getFullText( $page );
}
// TODO: move the logic implemented by Linker here,
// using $this->formatter and $this->baseUrl, and
// re-implement Linker to use a HtmlPageLinkRenderer.
$title = Title::newFromTitleValue( $page );
$link = Linker::link( $title, htmlspecialchars( $text ) );
return $link;
}
/**
* Returns a wikitext link to the given page, using the given surface text.
*
* @param TitleValue $page The link's target
* @param string $text The link's surface text (will be derived from $page if not given).
*
* @return string
*/
public function renderWikitextLink( TitleValue $page, $text = null ) {
if ( $text === null ) {
$text = $this->formatter->getFullText( $page );
}
$name = $this->formatter->getFullText( $page );
return '[[:' . $name . '|' . wfEscapeWikiText( $text ) . ']]';
}
}
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