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Merge pull request #84 from Lullabot/83-layout-validation
83 layout validation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| <?php | ||
| /* | ||
| * Copyright 2016 Google | ||
| * | ||
| * Licensed 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 | ||
| * | ||
| * http://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 Lullabot\AMP\Validate; | ||
|
|
||
| /** | ||
| * Class CssLengthAndUnit | ||
| * @package Lullabot\AMP\Validate | ||
| * | ||
| * This class is a straight PHP port of the Context class in validator.js | ||
| * (see https://github.com/ampproject/amphtml/blob/master/validator/validator.js ) | ||
| */ | ||
| class CssLengthAndUnit | ||
| { | ||
| /** @var bool */ | ||
| public $is_valid = false; | ||
| /** @var bool */ | ||
| public $is_set = false; | ||
| /** @var bool */ | ||
| public $is_auto = false; | ||
| /** @var string */ | ||
| public $unit = 'px'; | ||
|
|
||
| /** | ||
| * CssLengthAndUnit constructor. | ||
| * @param string|null $input | ||
| * @param boolean $allow_auto | ||
| */ | ||
| public function __construct($input, $allow_auto) | ||
| { | ||
| if (empty($input)) { | ||
| $this->is_valid = true; | ||
| } else { | ||
| $this->is_set = true; | ||
| if ($input === 'auto') { | ||
| $this->is_auto = true; | ||
| $this->is_valid = $allow_auto; | ||
| } else { | ||
| $regex = '/^\d+(?:\.\d+)?(px|em|rem|vh|vw|vmin|vmax)?$/'; | ||
| $matches = []; | ||
| if (preg_match($regex, $input, $matches)) { | ||
| $this->is_valid = true; | ||
| if (!empty($matches[1])) { | ||
| $this->unit = $matches[1]; | ||
| } else { | ||
| $this->unit = 'px'; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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