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<?php |
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namespace SilverStripe\ElementalBannerBlock\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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protected $schemaDataType = FormField::SCHEMA_DATA_TYPE_CUSTOM; |
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protected $schemaComponent = 'BlockLinkField'; |
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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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/** |
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* Whether to show the "link text" field |
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* |
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* @var bool |
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*/ |
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protected $showLinkText = true; |
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public function Type() |
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{ |
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return 'block-link-field'; |
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} |
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/** |
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* Reset the cached parsed value when setting a new value |
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* |
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* {@inheritDoc} |
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*/ |
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public function setValue($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 = json_decode($this->dataValue(), true); |
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return $this->parsedValue = ArrayData::create((array) $parsedValue); |
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} |
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/** |
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* Get the linked {@link SiteTree} object, if available |
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* |
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* @return SiteTree|null |
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*/ |
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public function getLinkPage() |
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{ |
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$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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* Set whether to display the link text field |
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* |
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* @param bool $showLinkText |
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* @return $this |
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*/ |
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public function setShowLinkText($showLinkText) |
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{ |
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$this->showLinkText = (bool) $showLinkText; |
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return $this; |
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} |
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/** |
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* Get whether to display the link text field |
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* |
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* @return bool |
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*/ |
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public function getShowLinkText() |
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{ |
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return $this->showLinkText; |
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} |
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/** |
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* When not used in a React form factory context, this adds the schema and state data to SilverStripe |
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* template rendered attributes lists |
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* |
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* @return array |
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*/ |
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public function getAttributes() |
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{ |
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$attributes = parent::getAttributes(); |
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$attributes['data-schema'] = json_encode($this->getSchemaData()); |
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$attributes['data-state'] = json_encode($this->getSchemaState()); |
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return $attributes; |
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} |
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/** |
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* Add some extra props for the React component to work with |
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* |
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* {@inheritDoc} |
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*/ |
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public function getSchemaDataDefaults() |
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{ |
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$schema = parent::getSchemaDataDefaults(); |
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$schema['data'] = array_merge($schema['data'], [ |
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'showLinkText' => $this->getShowLinkText(), |
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'linkedPage' => $this->getLinkPage() ? $this->getLinkPage()->toMap() : [], |
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'title' => $this->Title(), |
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]); |
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return $schema; |
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} |
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} |
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silverstripe /
silverstripe-elemental-bannerblock
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