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<?php |
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namespace SIL\Category; |
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use CategoryViewer; |
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use Title; |
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use Category; |
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/** |
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* Modifies list of available pages based on the language a category has assigned |
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* |
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* @license GNU GPL v2+ |
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* @since 1.0 |
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* |
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* @author mwjames |
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*/ |
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class LanguageFilterCategoryViewer extends CategoryViewer { |
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/** |
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* Avoid a possible category-empty message |
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* |
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* @see CategoryViewer::getCategoryTop |
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*/ |
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public function getCategoryTop() { |
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return parent::getCategoryTop() . '<span></span>'; |
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} |
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/** |
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* @see CategoryViewer::addImage |
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*/ |
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public function addImage( Title $title, $sortkey, $pageLength, $isRedirect = false ) { |
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if ( !$this->canMatchCategoryLanguageToPageLanguage( $title ) ) { |
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return null; |
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} |
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parent::addImage( $title, $sortkey, $pageLength, $isRedirect ); |
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} |
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/** |
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* @see CategoryViewer::addSubcategoryObject |
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*/ |
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public function addSubcategoryObject( Category $cat, $sortkey, $pageLength ) { |
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if ( !$this->canMatchCategoryLanguageToPageLanguage( $cat->getTitle() ) ) { |
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return null; |
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} |
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parent::addSubcategoryObject( $cat, $sortkey, $pageLength ); |
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} |
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/** |
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* @see CategoryViewer::addPage |
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*/ |
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public function addPage( $title, $sortkey, $pageLength, $isRedirect = false ) { |
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if ( !$this->canMatchCategoryLanguageToPageLanguage( $title ) ) { |
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return null; |
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} |
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parent::addPage( $title, $sortkey, $pageLength, $isRedirect ); |
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} |
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private function hasInterlanguageLinksLookup() { |
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return isset( $this->title->interlanguageLinksLookup ); |
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} |
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private function canMatchCategoryLanguageToPageLanguage( $title ) { |
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if ( !$this->hasInterlanguageLinksLookup() || !$title instanceOf Title ) { |
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return true; |
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} |
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if ( !$this->title->interlanguageLinksLookup->hasSilAnnotationFor( $title ) ) { |
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return false; |
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} |
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$categoryLanguageCode = $this->title->interlanguageLinksLookup->findPageLanguageForTarget( $this->title ); |
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if ( $categoryLanguageCode === null || $categoryLanguageCode === '' ) { |
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return true; |
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} |
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if ( $categoryLanguageCode === $this->title->interlanguageLinksLookup->findPageLanguageForTarget( $title ) ) { |
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return true; |
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} |
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return false; |
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} |
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} |
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SemanticMediaWiki /
SemanticInterlanguageLinks
