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<?php
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namespace Sabberworm\CSS\CSSList;
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use Sabberworm\CSS\OutputFormat;
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use Sabberworm\CSS\Property\AtRule;
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class KeyFrame extends CSSList implements AtRule
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{
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    /**
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     * @var string|null
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     */
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    private $vendorKeyFrame;
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    /**
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     * @var string|null
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     */
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    private $animationName;
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    /**
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     * @param int $iLineNo
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     */
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    public function __construct($iLineNo = 0)
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    {
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        parent::__construct($iLineNo);
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        $this->vendorKeyFrame = null;
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        $this->animationName = null;
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    }
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    /**
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     * @param string $vendorKeyFrame
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     */
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    public function setVendorKeyFrame($vendorKeyFrame)
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    {
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        $this->vendorKeyFrame = $vendorKeyFrame;
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    }
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    /**
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     * @return string|null
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     */
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    public function getVendorKeyFrame()
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    {
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        return $this->vendorKeyFrame;
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    }
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    /**
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     * @param string $animationName
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     */
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    public function setAnimationName($animationName)
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    {
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        $this->animationName = $animationName;
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    }
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    /**
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     * @return string|null
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     */
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    public function getAnimationName()
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    {
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        return $this->animationName;
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    }
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    /**
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     * @return string
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     */
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    public function __toString()
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    {
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        return $this->render(new OutputFormat());
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    }
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    /**
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     * @param OutputFormat|null $oOutputFormat
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     *
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     * @return string
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     */
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    public function render($oOutputFormat)
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    {
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        $sResult = $oOutputFormat->comments($this);
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        $sResult .= "@{$this->vendorKeyFrame} {$this->animationName}{$oOutputFormat->spaceBeforeOpeningBrace()}{";
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        $sResult .= $this->renderListContents($oOutputFormat);
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        $sResult .= '}';
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        return $sResult;
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    }
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    /**
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     * @return bool
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     */
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    public function isRootList()
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    {
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        return false;
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    }
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    /**
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     * @return string|null
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     */
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    public function atRuleName()
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    {
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        return $this->vendorKeyFrame;
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    }
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    /**
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     * @return string|null
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     */
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    public function atRuleArgs()
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    {
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        return $this->animationName;
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    }
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}