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SkinComponentLink.php
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SkinComponentLink.php
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<?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
*/
namespace MediaWiki\Skin;
use MediaWiki\Html\Html;
use MediaWiki\Linker\Linker;
use MediaWiki\Message\Message;
use MessageLocalizer;
/**
* @internal for use inside Skin and SkinTemplate classes only
* @unstable
*/
class SkinComponentLink implements SkinComponent {
/** @var string */
private $key;
/** @var array */
private $item;
/** @var array */
private $options;
/** @var MessageLocalizer */
private $localizer;
/**
* @param string $key
* @param array $item
* @param MessageLocalizer $localizer
* @param array $options
*/
public function __construct( string $key, array $item, MessageLocalizer $localizer, array $options = [] ) {
$this->key = $key;
$this->item = $item;
$this->localizer = $localizer;
$this->options = $options;
}
/**
* @param string $key
* @return Message
*/
private function msg( string $key ): Message {
return $this->localizer->msg( $key );
}
/**
* Makes a link, usually used by makeListItem to generate a link for an item
* in a list used in navigation lists, portlets, portals, sidebars, etc...
*
* @param string $key Usually a key from the list you are generating this
* link from.
* @param array $item Contains some of a specific set of keys.
*
* The text of the link will be generated either from the contents of the
* "text" key in the $item array, if a "msg" key is present a message by
* that name will be used, and if neither of those are set the $key will be
* used as a message name. Escaping is handled by this method.
*
* If a "href" key is not present makeLink will just output htmlescaped text.
* The "href", "id", "class", "rel", and "type" keys are used as attributes
* for the link if present.
*
* If an "id" or "single-id" (if you don't want the actual id to be output
* on the link) is present it will be used to generate a tooltip and
* accesskey for the link.
*
* The 'link-html' key can be used to prepend additional HTML inside the link HTML.
* For example to prepend an icon.
*
* The keys "context" and "primary" are ignored; these keys are used
* internally by skins and are not supposed to be included in the HTML
* output.
*
* If you don't want an accesskey, set $item['tooltiponly'] = true;
*
* If a "data" key is present, it must be an array, where the keys represent
* the data-xxx properties with their provided values. For example,
* $item['data'] = [
* 'foo' => 1,
* 'bar' => 'baz',
* ];
* will render as element properties:
* data-foo='1' data-bar='baz'
*
* The "class" key currently accepts both a string and an array of classes, but this will be
* changed to only accept an array in the future.
*
* @param array $options Can be used to affect the output of a link.
* Possible options are:
* - 'class-as-property' key to specify that class attribute should be
* not be included in array-attributes.
* - 'text-wrapper' key to specify a list of elements to wrap the text of
* a link in. This should be an array of arrays containing a 'tag' and
* optionally an 'attributes' key. If you only have one element you don't
* need to wrap it in another array. eg: To use <a><span>...</span></a>
* in all links use [ 'text-wrapper' => [ 'tag' => 'span' ] ]
* for your options.
* - 'link-class' key can be used to specify additional classes to apply
* to all links.
* - 'link-fallback' can be used to specify a tag to use instead of "<a>"
* if there is no link. eg: If you specify 'link-fallback' => 'span' than
* any non-link will output a "<span>" instead of just text.
*
* @return array Associated array with the following keys:
* - html: HTML string
* - array-attributes: HTML attributes as array of objects:
* - key: Attribute name ex: 'href', 'class', 'id', ...
* - value: Attribute value
* NOTE: if options['class-as-property'] is set, class will not be included in the list.
* - text: Text of the link
* - class: Class of the link
*/
private function makeLink( $key, $item, $options = [] ) {
$html = $item['html'] ?? null;
$icon = $item['icon'] ?? null;
if ( $html ) {
return [
'html' => $html
];
}
$text = $item['text'] ?? $this->msg( $item['msg'] ?? $key )->text();
$html = htmlspecialchars( $text );
$isLink = isset( $item['href'] ) || isset( $options['link-fallback'] );
if ( $html !== '' && isset( $options['text-wrapper'] ) ) {
$wrapper = $options['text-wrapper'];
if ( isset( $wrapper['tag'] ) ) {
$wrapper = [ $wrapper ];
}
while ( count( $wrapper ) > 0 ) {
$element = array_pop( $wrapper );
'@phan-var array $element';
$attrs = $element['attributes'] ?? [];
// Apply title attribute to the outermost wrapper if there is
// no link wrapper. No need for an accesskey.
if ( count( $wrapper ) === 0 && !$isLink ) {
$this->applyLinkTitleAttribs(
$item,
false,
$attrs
);
}
$html = Html::rawElement( $element['tag'], $attrs, $html );
}
}
$attrs = [];
$linkHtmlAttributes = [];
$classAsProperty = $options['class-as-property'] ?? false;
if ( $isLink ) {
$attrs = $item;
foreach ( [
'single-id', 'text', 'msg', 'tooltiponly', 'context', 'primary',
// These fields provide context for skins to modify classes.
// They should not be outputted to skin.
'icon', 'button',
'tooltip-params', 'exists', 'link-html' ] as $k
) {
unset( $attrs[$k] );
}
if ( isset( $attrs['data'] ) ) {
foreach ( $attrs['data'] as $key => $value ) {
if ( $value === null ) {
continue;
}
$attrs[ 'data-' . $key ] = $value;
}
unset( $attrs[ 'data' ] );
}
$this->applyLinkTitleAttribs( $item, true, $attrs );
$class = $attrs['class'] ?? [];
if ( isset( $options['link-class'] ) ) {
$class = SkinComponentUtils::addClassToClassList(
$class, $options['link-class']
);
}
$attrs['class'] = is_array( $class ) ? implode( ' ', $class ) : $class;
foreach ( $attrs as $key => $value ) {
if ( $value === null ) {
continue;
}
if ( $classAsProperty && $key === 'class' ) {
continue;
}
$linkHtmlAttributes[] = [ 'key' => $key, 'value' => $value ];
}
if ( isset( $item['link-html'] ) ) {
$html = $item['link-html'] . ' ' . $html;
}
$html = Html::rawElement( isset( $attrs['href'] )
? 'a'
: $options['link-fallback'], $attrs, $html );
}
$data = [
'html' => $html,
'icon' => $icon,
'array-attributes' => count( $linkHtmlAttributes ) > 0 ? $linkHtmlAttributes : null,
'text' => trim( $text ),
];
if ( $classAsProperty ) {
$data['class'] = $attrs['class'] ?? '';
}
return $data;
}
/**
* Helper for makeLink(). Add tooltip and accesskey attributes to $attrs
* according to the input item array.
*
* @param array $item
* @param bool $allowAccessKey
* @param array &$attrs
*/
private function applyLinkTitleAttribs( $item, $allowAccessKey, &$attrs ) {
$tooltipId = $item['single-id'] ?? $item['id'] ?? null;
if ( $tooltipId === null ) {
return;
}
$tooltipParams = $item['tooltip-params'] ?? [];
$tooltipOption = isset( $item['exists'] ) && $item['exists'] === false ? 'nonexisting' : null;
if ( !$allowAccessKey || !empty( $item['tooltiponly'] ) ) {
$title = Linker::titleAttrib( $tooltipId, $tooltipOption, $tooltipParams );
if ( $title !== false ) {
$attrs['title'] = $title;
}
} else {
$tip = Linker::tooltipAndAccesskeyAttribs(
$tooltipId,
$tooltipParams,
$tooltipOption
);
if ( isset( $tip['title'] ) && $tip['title'] !== false ) {
$attrs['title'] = $tip['title'];
}
if ( isset( $tip['accesskey'] ) && $tip['accesskey'] !== false ) {
$attrs['accesskey'] = $tip['accesskey'];
}
}
}
/**
* @inheritDoc
*/
public function getTemplateData(): array {
return $this->makeLink( $this->key, $this->item, $this->options );
}
}

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SkinComponentLink.php (8 KB)

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