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<?php |
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/** |
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* @package BreadcrumbNavigation SS 3.0 |
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*/ |
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class BreadcrumbNavigation extends DataExtension |
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{ |
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private $initialised = false; |
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public static $includeHome = true; |
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public static $includeSelf = true; |
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public static $maxDepth = 20; |
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public static $stopAtPageType = false; |
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public static $showHidden = false; |
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public static $homeURLSegment = 'home'; |
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public $hasHome = false; |
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public $parentPages = null; |
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protected $isSelf = false; |
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/** |
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* Initialises the BreadcrumbNavigation class. Only called when Breadcrumbs are actually used. |
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* |
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* @return ArrayList of parent pages |
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*/ |
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public function Pages() |
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{ |
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if (!$this->initialised) { |
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$this->parentPages = array(); |
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$page = $this->owner; |
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$i = 0; |
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while ( |
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$page |
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&& (!self::$maxDepth || sizeof($this->parentPages) < self::$maxDepth) |
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&& (!self::$stopAtPageType || $page->ClassName != self::$stopAtPageType) |
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) { |
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if (self::$showHidden || $page->ShowInMenus || ($page->ID == $this->owner->ID)) { |
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if ($page->URLSegment == self::$homeURLSegment) { |
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$this->hasHome = true; |
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} |
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if ($page->ID == $this->owner->ID) { |
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$page->isSelf = true; |
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} |
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if ((!$page->isSelf) || ($page->isSelf) && (self::$includeSelf)) { |
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array_unshift($this->parentPages, $page); |
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} |
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} |
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$page = $page->Parent; |
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} |
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if ((!$this->hasHome) && (self::$includeHome)) { |
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array_unshift($this->parentPages, DataObject::get_one('SiteTree', "`URLSegment` = '" . self::$homeURLSegment . "'")); |
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} |
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$this->initialised = true; |
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} |
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return new ArrayList($this->parentPages); |
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} |
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public static function CreateBreadcrumb($menuTitle, $link, $isSelf) |
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{ |
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$do = new DataObject(); |
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$do->Link = $link; |
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$do->MenuTitle = $menuTitle; |
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$do->isSelf = $isSelf; |
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return $do; |
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} |
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/** |
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* Adds one or more pages as child(ren) to end of parent pages. |
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* |
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* @param mixed $object array of or single object to add |
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* @param bool $unique Removes duplicate values from breadcrumb trail |
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*/ |
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public function AddBreadcrumbAfter($object, $unique = false) |
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{ |
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$this->Pages(); |
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foreach ($this->parentPages as $page) { |
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$page->isSelf = false; |
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} |
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if (is_array($object)) { |
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foreach ($object as $obj) { |
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array_push($this->parentPages, $obj); |
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} |
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} else { |
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array_push($this->parentPages, $object); |
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} |
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if ($unique) { |
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$this->parentPages = array_unique($this->parentPages); |
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} |
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} |
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/** |
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* Adds one or more pages as parent(s) to beginning of parent pages. |
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* |
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* @param mixed $object array of or single object to add |
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* @param bool $unique Removes duplicate values from breadcrumb trail |
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*/ |
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public function AddBreadcrumbBefore($object, $unique = false) |
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{ |
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$this->Pages(); |
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foreach ($this->parentPages as $page) { |
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$page->isSelf = false; |
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} |
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if (is_array($object)) { |
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foreach ($object as $obj) { |
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array_unshift($this->parentPages, $obj); |
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} |
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} else { |
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array_unshift($this->parentPages, $object); |
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} |
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if ($unique) { |
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$this->parentPages = array_unique($this->parentPages); |
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} |
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} |
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} |
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gordonbanderson /
Silverstripe-Module-BreadcrumbNavigation
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