BasicScreenContext.php

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<?php namespace ILIAS\GlobalScreen\ScreenContext;

use ILIAS\Data\ReferenceId;
use ILIAS\GlobalScreen\ScreenContext\AdditionalData\Collection;

class BasicScreenContext implements ScreenContext
{

    protected $reference_id;
    protected $additional_data;
    protected $context_identifier = '';


    public function __construct(string $context_identifier)
    {
        $this->context_identifier = $context_identifier;
        $this->additional_data = new Collection();
        $this->reference_id = new ReferenceId(0);
    }


    public function hasReferenceId() : bool
    {
        return $this->reference_id instanceof ReferenceId && $this->reference_id->toInt() > 0;
    }


    public function getReferenceId() : ReferenceId
    {
        return $this->reference_id;
    }


    public function withReferenceId(ReferenceId $reference_id) : ScreenContext
    {
        $clone = clone $this;
        $clone->reference_id = $reference_id;

        return $clone;
    }


    public function withAdditionalData(Collection $collection) : ScreenContext
    {
        $clone = clone $this;
        $clone->additional_data = $collection;

        return $clone;
    }


    public function getAdditionalData() : Collection
    {
        return $this->additional_data;
    }


    public function addAdditionalData(string $key, $value) : ScreenContext
    {
        $this->additional_data->add($key, $value);

        return $this;
    }


    public function getUniqueContextIdentifier() : string
    {
        return $this->context_identifier;
    }
}