b0130ca649
This includes fixing some mistakes, as well as removing redundant text that doesn't add new information, either because it literally repeats what the code already says, or is actually duplicated. Change-Id: I3a8dd8ce57192deda8916cc444c87d7ab1a36515
499 lines
16 KiB
PHP
499 lines
16 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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/**
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* Module for skin stylesheets.
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*
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* @ingroup ResourceLoader
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* @internal
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*/
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class ResourceLoaderSkinModule extends ResourceLoaderFileModule {
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/**
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* All skins are assumed to be compatible with mobile
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*/
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public $targets = [ 'desktop', 'mobile' ];
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/**
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* Every skin should define which features it would like to reuse for core inside a
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* ResourceLoader module that has set the class to ResourceLoaderSkinModule.
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* For a feature to be valid it must be listed here along with the associated resources
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*
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* The following features are available:
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*
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* "logo":
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* Adds CSS to style an element with class `mw-wiki-logo` using the value of wgLogos['1x'].
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* This is enabled by default if no features are added.
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*
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* "normalize":
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* Styles needed to normalize rendering across different browser rendering engines.
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* All to address bugs and common browser inconsistencies for skins and extensions.
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* Inspired by necolas' normalize.css. This is meant to be kept lean,
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* basic styling beyond normalization should live in one of the following modules.
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*
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* "elements":
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* The base level that only contains the most basic of common skin styles.
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* Only styles for single elements are included, no styling for complex structures like the
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* TOC is present. This level is for skins that want to implement the entire style of even
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* content area structures like the TOC themselves.
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*
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* "content":
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* The most commonly used level for skins implemented from scratch. This level includes all
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* the single element styles from "elements" as well as styles for complex structures such
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* as the TOC that are output in the content area by MediaWiki rather than the skin.
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* Essentially this is the common level that lets skins leave the style of the content area
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* as it is normally styled, while leaving the rest of the skin up to the skin
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* implementation.
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*
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* "interface":
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* The highest level, this stylesheet contains extra common styles for classes like
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* .firstHeading, #contentSub, et cetera which are not outputted by MediaWiki but are common
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* to skins like MonoBook, Vector, etc... Essentially this level is for styles that are
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* common to MonoBook clones.
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*
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* "i18n-ordered-lists":
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* Styles for ordered lists elements that support mixed language content.
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*
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* "i18n-all-lists-margins":
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* Styles for margins of list elements where LTR and RTL are mixed.
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*
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* "i18n-headings":
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* Styles for line-heights of headings across different languages.
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*
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* "legacy":
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* For backwards compatibility a legacy feature is provided.
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* New skins should not use this if they can avoid doing so.
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* This feature also contains all `i18n-` prefixed features.
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*/
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private const FEATURE_FILES = [
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'logo' => [
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// Applies the logo and ensures it downloads prior to printing.
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'all' => [ 'resources/src/mediawiki.skinning/logo.less' ],
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// Reserves whitespace for the logo in a pseudo element.
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'print' => [ 'resources/src/mediawiki.skinning/logo-print.less' ],
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],
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'content' => [
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'screen' => [ 'resources/src/mediawiki.skinning/content.css' ],
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],
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'interface' => [
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'screen' => [ 'resources/src/mediawiki.skinning/interface.css' ],
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],
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'normalize' => [
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'screen' => [ 'resources/src/mediawiki.skinning/normalize.less' ],
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],
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'elements' => [
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'screen' => [ 'resources/src/mediawiki.skinning/elements.css' ],
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],
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'legacy' => [
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'all' => [ 'resources/src/mediawiki.skinning/messageBoxes.less' ],
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'print' => [ 'resources/src/mediawiki.skinning/commonPrint.css' ],
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'screen' => [ 'resources/src/mediawiki.skinning/legacy.less' ],
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],
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'i18n-ordered-lists' => [
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'screen' => [ 'resources/src/mediawiki.skinning/i18n-ordered-lists.less' ],
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],
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'i18n-all-lists-margins' => [
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'screen' => [ 'resources/src/mediawiki.skinning/i18n-all-lists-margins.less' ],
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],
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'i18n-headings' => [
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'screen' => [ 'resources/src/mediawiki.skinning/i18n-headings.less' ],
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],
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];
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/** @var string[] */
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private $features;
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/** @var array */
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private const DEFAULT_FEATURES = [
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'logo' => false,
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'content' => false,
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'interface' => false,
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'elements' => false,
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'legacy' => false,
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'i18n-ordered-lists' => false,
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'i18n-all-lists-margins' => false,
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'i18n-headings' => false,
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];
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public function __construct(
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array $options = [],
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$localBasePath = null,
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$remoteBasePath = null
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) {
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parent::__construct( $options, $localBasePath, $remoteBasePath );
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$features = $options['features'] ??
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// For historic reasons if nothing is declared logo and legacy features are enabled.
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[
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'logo' => true,
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'legacy' => true
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];
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$enabledFeatures = [];
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$compatibilityMode = false;
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foreach ( $features as $key => $enabled ) {
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if ( is_bool( $enabled ) ) {
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$enabledFeatures[$key] = $enabled;
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} else {
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// operating in array mode.
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$enabledFeatures[$enabled] = true;
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$compatibilityMode = true;
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}
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}
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// If the module didn't specify an option use the default features values.
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// This allows new features to be turned on automatically.
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if ( !$compatibilityMode ) {
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foreach ( self::DEFAULT_FEATURES as $key => $enabled ) {
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if ( !isset( $enabledFeatures[$key] ) ) {
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$enabledFeatures[$key] = $enabled;
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}
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}
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}
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$this->features = array_filter(
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array_keys( $enabledFeatures ),
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function ( $key ) use ( $enabledFeatures ) {
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return $enabledFeatures[ $key ];
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}
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);
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}
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/**
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* Get styles defined in the module definition, plus any enabled feature styles.
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*
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* @param ResourceLoaderContext $context
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* @return string[][]
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*/
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public function getStyleFiles( ResourceLoaderContext $context ) {
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$styles = parent::getStyleFiles( $context );
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list( $defaultLocalBasePath, $defaultRemoteBasePath ) =
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ResourceLoaderFileModule::extractBasePaths();
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$featureFilePaths = [];
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foreach ( $this->features as $feature ) {
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if ( !isset( self::FEATURE_FILES[$feature] ) ) {
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throw new InvalidArgumentException( "Feature `$feature` is not recognised" );
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}
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foreach ( self::FEATURE_FILES[$feature] as $mediaType => $files ) {
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foreach ( $files as $filepath ) {
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$featureFilePaths[$mediaType][] = new ResourceLoaderFilePath(
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$filepath,
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$defaultLocalBasePath,
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$defaultRemoteBasePath
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);
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}
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}
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}
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foreach ( $featureFilePaths as $mediaType => $paths ) {
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$styles[$mediaType] = array_merge( $paths, $styles[$mediaType] ?? [] );
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}
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return $styles;
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}
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/**
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* @param ResourceLoaderContext $context
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* @return array
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*/
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public function getStyles( ResourceLoaderContext $context ) {
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$logo = $this->getLogoData( $this->getConfig() );
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$styles = parent::getStyles( $context );
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$this->normalizeStyles( $styles );
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$isLogoFeatureEnabled = in_array( 'logo', $this->features );
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if ( $isLogoFeatureEnabled ) {
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$default = !is_array( $logo ) ? $logo : $logo['1x'];
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$styles['all'][] = '.mw-wiki-logo { background-image: ' .
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CSSMin::buildUrlValue( $default ) .
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'; }';
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if ( is_array( $logo ) ) {
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if ( isset( $logo['svg'] ) ) {
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$styles['all'][] = '.mw-wiki-logo { ' .
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'background-image: -webkit-linear-gradient(transparent, transparent), ' .
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CSSMin::buildUrlValue( $logo['svg'] ) . '; ' .
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'background-image: linear-gradient(transparent, transparent), ' .
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CSSMin::buildUrlValue( $logo['svg'] ) . ';' .
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'background-size: 135px auto; }';
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} else {
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if ( isset( $logo['1.5x'] ) ) {
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$styles[
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'(-webkit-min-device-pixel-ratio: 1.5), ' .
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'(min--moz-device-pixel-ratio: 1.5), ' .
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'(min-resolution: 1.5dppx), ' .
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'(min-resolution: 144dpi)'
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][] = '.mw-wiki-logo { background-image: ' .
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CSSMin::buildUrlValue( $logo['1.5x'] ) . ';' .
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'background-size: 135px auto; }';
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}
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if ( isset( $logo['2x'] ) ) {
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$styles[
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'(-webkit-min-device-pixel-ratio: 2), ' .
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'(min--moz-device-pixel-ratio: 2), ' .
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'(min-resolution: 2dppx), ' .
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'(min-resolution: 192dpi)'
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][] = '.mw-wiki-logo { background-image: ' .
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CSSMin::buildUrlValue( $logo['2x'] ) . ';' .
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'background-size: 135px auto; }';
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}
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}
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}
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}
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return $styles;
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}
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/**
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* @param ResourceLoaderContext $context
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* @return array
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*/
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public function getPreloadLinks( ResourceLoaderContext $context ) {
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return $this->getLogoPreloadlinks();
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}
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/**
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* Helper method for getPreloadLinks()
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* @return array
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*/
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private function getLogoPreloadlinks() : array {
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if ( !in_array( 'logo', $this->features ) ) {
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return [];
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}
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$logo = $this->getLogoData( $this->getConfig() );
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$logosPerDppx = [];
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$logos = [];
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$preloadLinks = [];
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if ( !is_array( $logo ) ) {
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// No media queries required if we only have one variant
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$preloadLinks[$logo] = [ 'as' => 'image' ];
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return $preloadLinks;
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}
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if ( isset( $logo['svg'] ) ) {
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// No media queries required if we only have a 1x and svg variant
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// because all preload-capable browsers support SVGs
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$preloadLinks[$logo['svg']] = [ 'as' => 'image' ];
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return $preloadLinks;
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}
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foreach ( $logo as $dppx => $src ) {
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// Keys are in this format: "1.5x"
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$dppx = substr( $dppx, 0, -1 );
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$logosPerDppx[$dppx] = $src;
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}
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// Because PHP can't have floats as array keys
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uksort( $logosPerDppx, function ( $a, $b ) {
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$a = floatval( $a );
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$b = floatval( $b );
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// Sort from smallest to largest (e.g. 1x, 1.5x, 2x)
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return $a <=> $b;
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} );
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foreach ( $logosPerDppx as $dppx => $src ) {
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$logos[] = [
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'dppx' => $dppx,
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'src' => $src
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];
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}
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$logosCount = count( $logos );
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// Logic must match ResourceLoaderSkinModule:
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// - 1x applies to resolution < 1.5dppx
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// - 1.5x applies to resolution >= 1.5dppx && < 2dppx
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// - 2x applies to resolution >= 2dppx
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// Note that min-resolution and max-resolution are both inclusive.
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for ( $i = 0; $i < $logosCount; $i++ ) {
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if ( $i === 0 ) {
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// Smallest dppx
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// min-resolution is ">=" (larger than or equal to)
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// "not min-resolution" is essentially "<"
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$media_query = 'not all and (min-resolution: ' . $logos[1]['dppx'] . 'dppx)';
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} elseif ( $i !== $logosCount - 1 ) {
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// In between
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// Media query expressions can only apply "not" to the entire expression
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// (e.g. can't express ">= 1.5 and not >= 2).
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// Workaround: Use <= 1.9999 in place of < 2.
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$upper_bound = floatval( $logos[$i + 1]['dppx'] ) - 0.000001;
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$media_query = '(min-resolution: ' . $logos[$i]['dppx'] .
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'dppx) and (max-resolution: ' . $upper_bound . 'dppx)';
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} else {
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// Largest dppx
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$media_query = '(min-resolution: ' . $logos[$i]['dppx'] . 'dppx)';
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}
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$preloadLinks[$logos[$i]['src']] = [
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'as' => 'image',
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'media' => $media_query
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];
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}
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return $preloadLinks;
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}
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/**
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* Ensure all media keys use array values.
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*
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* Normalises arrays returned by the ResourceLoaderFileModule::getStyles() method.
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*
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* @param array &$styles Associative array, keys are strings (media queries),
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* values are strings or arrays
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*/
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private function normalizeStyles( array &$styles ) : void {
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foreach ( $styles as $key => $val ) {
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if ( !is_array( $val ) ) {
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$styles[$key] = [ $val ];
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}
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}
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}
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/**
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* Return an array of all available logos that a skin may use.
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* @since 1.35
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* @param Config $conf
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* @return array with the following keys:
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* - 1x: a square logo (required)
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* - 2x: a square logo for HD displays (optional)
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* - wordmark: a rectangle logo (wordmark) for print media and skins which desire
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* horizontal logo (optional)
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*/
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public static function getAvailableLogos( $conf ) : array {
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$logos = $conf->get( 'Logos' );
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if ( $logos === false ) {
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// no logos were defined... this will either
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// 1. Load from wgLogo and wgLogoHD
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// 2. Trigger runtime exception if those are not defined.
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$logos = [];
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}
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// If logos['1x'] is not defined, see if we can use wgLogo
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if ( !isset( $logos[ '1x' ] ) ) {
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$logo = $conf->get( 'Logo' );
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if ( $logo ) {
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$logos['1x'] = $logo;
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}
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}
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try {
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$logoHD = $conf->get( 'LogoHD' );
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// make sure not false
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if ( $logoHD ) {
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// wfDeprecated( __METHOD__ . ' with $wgLogoHD set instead of $wgLogos', '1.35', false, 1 );
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$logos += $logoHD;
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}
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} catch ( ConfigException $e ) {
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// no backwards compatibility changes needed.
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}
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// check the configuration is valid
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if ( !isset( $logos['1x'] ) ) {
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throw new \RuntimeException( "The key `1x` is required for wgLogos or wgLogo must be defined." );
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}
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// return the modified logos!
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return $logos;
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}
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/**
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* @since 1.31
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* @param Config $conf
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* @return string|array Single url if no variants are defined,
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* or an array of logo urls keyed by dppx in form "<float>x".
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* Key "1x" is always defined. Key "svg" may also be defined,
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* in which case variants other than "1x" are omitted.
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*/
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protected function getLogoData( Config $conf ) {
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$logoHD = self::getAvailableLogos( $conf );
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$logo = $logoHD['1x'];
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$logo1Url = OutputPage::transformResourcePath( $conf, $logo );
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$logoUrls = [
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'1x' => $logo1Url,
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];
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if ( isset( $logoHD['svg'] ) ) {
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$logoUrls['svg'] = OutputPage::transformResourcePath(
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$conf,
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$logoHD['svg']
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);
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} elseif ( isset( $logoHD['1.5x'] ) || isset( $logoHD['2x'] ) ) {
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// Only 1.5x and 2x are supported
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if ( isset( $logoHD['1.5x'] ) ) {
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$logoUrls['1.5x'] = OutputPage::transformResourcePath(
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$conf,
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$logoHD['1.5x']
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);
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}
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if ( isset( $logoHD['2x'] ) ) {
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$logoUrls['2x'] = OutputPage::transformResourcePath(
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$conf,
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$logoHD['2x']
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);
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}
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} else {
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// Return a string rather than a one-element array, getLogoPreloadlinks depends on this
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return $logo1Url;
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}
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return $logoUrls;
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}
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/**
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* @param ResourceLoaderContext $context
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* @return bool
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*/
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public function isKnownEmpty( ResourceLoaderContext $context ) {
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// Regardless of whether the files are specified, we always
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// provide mw-wiki-logo styles.
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return false;
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}
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/**
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* Get language-specific LESS variables for this module.
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*
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* @param ResourceLoaderContext $context
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* @return array
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*/
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protected function getLessVars( ResourceLoaderContext $context ) {
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$lessVars = parent::getLessVars( $context );
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$logos = self::getAvailableLogos( $this->getConfig() );
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if ( isset( $logos['wordmark'] ) ) {
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$logo = $logos['wordmark'];
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$lessVars[ 'logo-enabled' ] = true;
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$lessVars[ 'logo-wordmark-url' ] = CSSMin::buildUrlValue( $logo['src'] );
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$lessVars[ 'logo-wordmark-width' ] = intval( $logo['width'] );
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$lessVars[ 'logo-wordmark-height' ] = intval( $logo['height'] );
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} else {
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$lessVars[ 'logo-enabled' ] = false;
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}
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return $lessVars;
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}
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public function getDefinitionSummary( ResourceLoaderContext $context ) {
|
|
$summary = parent::getDefinitionSummary( $context );
|
|
$summary[] = [
|
|
'logos' => self::getAvailableLogos( $this->getConfig() ),
|
|
];
|
|
return $summary;
|
|
}
|
|
}
|