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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace DNADesign\Elemental\Extensions;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use DNADesign\Elemental\Models\BaseElement;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use DNADesign\Elemental\Models\ElementalArea;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\CMS\Model\SiteTree;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\Control\Controller;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\View\Parsers\HTML4Value;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\View\SSViewer;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @method ElementalArea ElementalArea()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @property int ElementalAreaID  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class ElementalPageExtension extends ElementalAreasExtension  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private static $has_one = [  | 
            
                            
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                        'ElementalArea' => ElementalArea::class,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private static $owns = [  | 
            
                            
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                        'ElementalArea',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private static $cascade_duplicates = [  | 
            
                            
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                        'ElementalArea',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * The delimiter to separate distinct elements in indexed content.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * When using the getElementsForSearch() method to index all elements in a single field,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * a custom delimiter can be used help to avoid false positive results for phrase queries.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @config  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private static $search_index_element_delimiter = ' ';  | 
            
                            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Returns the contents of each ElementalArea has_one's markup for use in Solr or Elastic search indexing  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getElementsForSearch()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $oldThemes = SSViewer::get_themes();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        SSViewer::set_themes(SSViewer::config()->get('themes')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        try { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $output = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->loopThroughElements(function(BaseElement $element) use (&$output) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                if ($element->getSearchIndexable()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $content = $element->getContentForSearchIndex();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    if ($content) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        $output[] = $content;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } finally { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // Reset theme if an exception occurs, if you don't have a  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // try / finally around code that might throw an Exception,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // CMS layout can break on the response. (SilverStripe 4.1.1)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            SSViewer::set_themes($oldThemes);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return implode($this->owner->config()->get('search_index_element_delimiter') ?? '', $output); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param array $anchors  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @see SiteTree::getAnchorsOnPage()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function updateAnchorsOnPage(array &$anchors): void  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!($this->owner instanceof SiteTree)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->loopThroughElements(function(BaseElement $element) use (&$anchors) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $anchors = array_merge($anchors, $element->getAnchorsInContent());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function MetaTags(&$tags)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!Controller::has_curr()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $controller = Controller::curr();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $request = $controller->getRequest();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($request->getVar('ElementalPreview') !== null) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $html = HTML4Value::create($tags);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $xpath = "//meta[@name='x-page-id' or @name='x-cms-edit-link']";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $removeTags = $html->query($xpath);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $body = $html->getBody();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            foreach ($removeTags as $tag) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $body->removeChild($tag);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $tags = $html->getContent();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Call some function over all elements belonging to this page  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private function loopThroughElements(callable $callback): void  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        foreach ($this->owner->hasOne() as $key => $class) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            if ($class !== ElementalArea::class) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                continue;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            /** @var ElementalArea $area */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $area = $this->owner->$key();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            if ($area) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                foreach ($area->Elements() as $element) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    $callback($element);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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