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<?php
/**
* Copyright 2018 LINE Corporation
*
* LINE Corporation licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
namespace LINE\LINEBot\MessageBuilder\Flex\ComponentBuilder;
use LINE\LINEBot\Constant\Flex\ComponentSpaceSize;
use LINE\LINEBot\Constant\Flex\ComponentType;
use LINE\LINEBot\MessageBuilder\Flex\ComponentBuilder;
use LINE\LINEBot\Util\BuildUtil;
/**
* A builder class for spacer component.
*
* @package LINE\LINEBot\MessageBuilder\Flex\ComponentBuilder
*/
class SpacerComponentBuilder implements ComponentBuilder
{
/** @var ComponentSpaceSize */
private $size;
/** @var array */
private $component;
/**
* SpacerComponentBuilder constructor.
*
* @param ComponentSpaceSize|string $size
*/
public function __construct($size)
{
$this->size = $size;
}
/**
* Create empty SpacerComponentBuilder.
*
* @return SpacerComponentBuilder
*/
public static function builder()
{
return new self(null);
}
/**
* Set size.
*
* @param ComponentSpaceSize|string $size
* @return SpacerComponentBuilder
*/
public function setSize($size)
{
$this->size = $size;
return $this;
}
/**
* Builds spacer component structure.
*
* @return array
*/
public function build()
{
if (isset($this->component)) {
return $this->component;
}
$this->component = BuildUtil::removeNullElements([
'type' => ComponentType::SPACER,
'size' => $this->size,
]);
return $this->component;
}
}