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<?php |
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namespace SilverStripe\ElementalBlocks\Form; |
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use SilverStripe\CMS\Model\SiteTree; |
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use SilverStripe\Core\Convert; |
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use SilverStripe\Forms\FormField; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\View\ArrayData; |
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class BlockLinkField extends FormField |
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{ |
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/** |
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* Cache for parsed value |
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* |
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* @var ArrayData |
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*/ |
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protected $parsedValue; |
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public function Type() |
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{ |
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return 'blocklinkfield'; |
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} |
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/** |
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* Reset the cached parsed value when setting a new value |
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* |
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* {@inheritDoc} |
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*/ |
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public function setValue($value, $data = null) |
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{ |
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$this->parsedValue = null; |
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return parent::setValue($value, $data); |
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} |
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/** |
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* Return a parsed {@link ArrayData} object from the contents of the JSON value. Will |
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* be cached for future use, and the cache will be reset via setValue each time. |
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* |
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* @return ArrayData |
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*/ |
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public function getParsedValue() |
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{ |
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if ($this->parsedValue) { |
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return $this->parsedValue; |
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} |
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$parsedValue = Convert::json2array($this->dataValue()); |
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return $this->parsedValue = ArrayData::create((array) $parsedValue); |
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} |
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/** |
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* Get whether a {@link SiteTree} link has been defined on this link field |
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* |
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* @return bool |
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*/ |
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public function getLinkDefined() |
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{ |
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return (bool) $this->getParsedValue()->PageID; |
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} |
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/** |
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* Get the linked {@link SiteTree} object, if available |
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* |
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* @return SiteTree|null |
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*/ |
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public function getLinkPage() |
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{ |
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$pageId = (int) $this->getParsedValue()->PageID; |
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if (!$pageId) { |
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return null; |
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} |
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return DataObject::get_by_id(SiteTree::class, $pageId); |
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} |
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/** |
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* Get the relative URL for the linked {@link SiteTree} object, with a leading slash |
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* |
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* @return string |
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*/ |
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public function getLinkRelativeUrl() |
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{ |
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$page = $this->getLinkPage(); |
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return $page ? '/' . ltrim($page->URLSegment, '/') : ''; |
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} |
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/** |
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* Get the link text/title |
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* |
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* @return string |
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*/ |
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public function getLinkText() |
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{ |
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return $this->getParsedValue()->Text; |
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} |
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/** |
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* Get the link "description", used for titles or alt text |
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* |
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* @return string |
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*/ |
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public function getLinkDescription() |
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{ |
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return $this->getParsedValue()->Description; |
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} |
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/** |
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* Get whether to open the link in a new window |
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* |
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* @return bool |
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*/ |
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public function getLinkTargetBlank() |
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{ |
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return (bool) $this->getParsedValue()->TargetBlank; |
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} |
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} |
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silverstripe /
silverstripe-elemental-blocks
