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<?php |
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namespace SBL; |
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use SMW\DIWikiPage; |
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use SMW\DataValueFactory; |
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use Title; |
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use Html; |
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use DummyLinker; |
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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 HtmlBreadcrumbLinksBuilder { |
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/** |
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* @var ByPropertyHierarchicalLinksFinder |
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*/ |
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private $byPropertyHierarchicalLinksFinder; |
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/** |
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* @var BySubpageLinksFinder |
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*/ |
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private $bySubpageLinksFinder; |
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/** |
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* @var DummyLinker|null |
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*/ |
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private $linker = null; |
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/** |
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* @var string |
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*/ |
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private $breadcrumbs = ''; |
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/** |
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* @var string |
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*/ |
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private $breadcrumbTrailStyleClass = 'sbl-breadcrumb-trail-boxed'; |
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/** |
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* @var string |
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*/ |
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private $breadcrumbDividerStyleClass = 'sbl-breadcrumb-arrow'; |
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/** |
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* @var boolean |
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*/ |
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private $isRTL = false; |
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/** |
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* @var boolean |
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*/ |
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private $hasChildren = false; |
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/** |
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* @var boolean |
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*/ |
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private $hideSubpageParent = false; |
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/** |
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* @since 1.0 |
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* |
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* @param ByPropertyHierarchicalLinksFinder $byPropertyHierarchicalLinksFinder |
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* @param BySubpageLinksFinder $bySubpageLinksFinder |
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*/ |
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public function __construct( ByPropertyHierarchicalLinksFinder $byPropertyHierarchicalLinksFinder, BySubpageLinksFinder $bySubpageLinksFinder ) { |
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$this->byPropertyHierarchicalLinksFinder = $byPropertyHierarchicalLinksFinder; |
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$this->bySubpageLinksFinder = $bySubpageLinksFinder; |
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} |
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/** |
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* @since 1.0 |
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* |
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* @param DummyLinker $linker |
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*/ |
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public function setLinker( DummyLinker $linker ) { |
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$this->linker = $linker; |
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} |
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/** |
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* @since 1.0 |
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* |
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* @param string $breadcrumbTrailStyleClass |
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*/ |
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public function setBreadcrumbTrailStyleClass( $breadcrumbTrailStyleClass ) { |
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$this->breadcrumbTrailStyleClass = $breadcrumbTrailStyleClass; |
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} |
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/** |
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* @since 1.0 |
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* |
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* @param string $breadcrumbDividerStyleClass |
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*/ |
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public function setBreadcrumbDividerStyleClass( $breadcrumbDividerStyleClass ) { |
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$this->breadcrumbDividerStyleClass = $breadcrumbDividerStyleClass; |
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} |
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/** |
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* @since 1.3 |
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* |
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* @param boolean $hideSubpageParent |
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*/ |
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public function setHideSubpageParentState( $hideSubpageParent ) { |
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$this->hideSubpageParent = $hideSubpageParent; |
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} |
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/** |
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* @since 1.0 |
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* |
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* @param boolean $isRTL |
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*/ |
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public function setRTLDirectionalityState( $isRTL ) { |
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$this->isRTL = $isRTL; |
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} |
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/** |
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* @since 1.0 |
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* |
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* @param Title $title |
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*/ |
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public function buildBreadcrumbs( Title $title ) { |
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if ( $title->isRedirect() ) { |
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return; |
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} |
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// Ensure no subobject is used by replacing the fragment |
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$title->setFragment( '' ); |
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$subject = DIWikiPage::newFromTitle( $title ); |
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$this->byPropertyHierarchicalLinksFinder->tryToFindLinksFor( $subject ); |
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$parents = $this->byPropertyHierarchicalLinksFinder->getParents(); |
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$children = $this->byPropertyHierarchicalLinksFinder->getChildren(); |
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$parents = $this->tryToUseSubpageHierarchyFallback( |
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$subject, |
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$parents |
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); |
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$this->formatToFlatList( $subject, $parents, $children ); |
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} |
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/** |
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* @since 1.0 |
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* |
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* @return string |
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*/ |
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public function getHtml() { |
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if ( $this->breadcrumbs === '' ) { |
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return $this->breadcrumbs; |
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} |
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return Html::rawElement( 'div', array( |
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'id' => 'sbl-breadcrumbs', |
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'class' => $this->breadcrumbTrailStyleClass, |
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'dir' => $this->isRTL ? 'rtl' : 'ltr' ), |
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$this->breadcrumbs |
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); |
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} |
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private function tryToUseSubpageHierarchyFallback( $subject, $parents ) { |
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if ( $parents !== array() || !$this->bySubpageLinksFinder->canUseSubpageDiscoveryForFallback() ) { |
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return $parents; |
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} |
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$this->bySubpageLinksFinder->tryToFindLinksFor( $subject ); |
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return $this->bySubpageLinksFinder->getParents(); |
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} |
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private function formatToFlatList( DIWikiPage $subject, $parents, $children ) { |
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$parent = ''; |
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foreach ( $parents as $breadcrumb ) { |
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$parent .= $this->wrapHtml( 'parent', $this->getDvShortHtmlText( $breadcrumb, $this->linker ) ) . $this->wrapHtml( 'right' ); |
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} |
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$this->hasChildren = count( $children ) > 1; |
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list( $child, $data ) = $this->findElementsForChildren( $children ); |
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if ( $parent !== '' || $child !== '' ) { |
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$this->breadcrumbs = $parent . $this->wrapHtml( 'location', $this->getDvShortHtmlText( $subject ) ) . $child . $this->addHtmlDataElement( $data ); |
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} |
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} |
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private function getDvShortHtmlText( $subject, $linker = null ) { |
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$dataValue = DataValueFactory::getInstance()->newDataItemValue( |
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$subject |
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); |
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$dataValue->setCaption( |
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$this->hideSubpageParent ? $subject->getTitle()->getSubpageText() : false |
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); |
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return $dataValue->getShortHtmlText( $linker ); |
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} |
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private function wrapHtml( $subClass, $html = '' ) { |
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return Html::rawElement( 'span', array( |
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'class' => $this->breadcrumbDividerStyleClass . '-' . $subClass, |
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'style' => $subClass === 'child' && $this->hasChildren ? 'font-style:italic;' : '' |
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), |
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$html |
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); |
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} |
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private function findElementsForChildren( array $children ) { |
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$child = ''; |
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$data = ''; |
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foreach ( $children as $breadcrumb ) { |
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// The first child is added as visible element while others |
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// are added as data-element |
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if ( $child !== '' ) { |
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$this->hasChildren = true; |
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$data .= $this->addHtmlListElement( $this->getDvShortHtmlText( $breadcrumb, $this->linker ) ); |
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continue; |
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} |
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$child .= $this->wrapHtml( 'left' ) . $this->wrapHtml( 'child', $this->getDvShortHtmlText( $breadcrumb, $this->linker ) ); |
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} |
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return array( $child, $data ); |
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} |
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private function addHtmlListElement( $html = '' ) { |
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return Html::rawElement( 'li', array(), $html ); |
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} |
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private function addHtmlDataElement( $data = '' ) { |
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if ( $data === '' ) { |
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return ''; |
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} |
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return Html::rawElement( 'span', array( |
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'class' => 'sbl-breadcrumb-children', |
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'data-children' => $data ), |
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'' |
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); |
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} |
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} |
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SemanticMediaWiki /
SemanticBreadcrumbLinks
