css 0.0.22

// This file is part of css. It is subject to the license terms in the COPYRIGHT file found in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/css/master/COPYRIGHT. No part of predicator, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the COPYRIGHT file.
// Copyright © 2017 The developers of css. See the COPYRIGHT file in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/css/master/COPYRIGHT.


#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct MediaGrid
{
	pub is_grid: bool,
}

impl ToCss for MediaGrid
{
	fn to_css<W: fmt::Write>(&self, dest: &mut W) -> fmt::Result
	{
		let value = if self.is_grid
		{
			1
		}
		else
		{
			0
		};
		value.to_css(dest)
	}
}

impl Parse for MediaGrid
{
	fn parse<'i, 't>(_context: &ParserContext, input: &mut Parser<'i, 't>) -> Result<Self, ParseError<'i, CustomParseError<'i>>>
	{
		let is_grid = match input.expect_integer()?
		{
			0 => false,
			1 => true,
			invalid @ _ => return Err(ParseError::Custom(CustomParseError::MediaGridMustBeEitherZeroOrOne(invalid))),
		};
		
		Ok
		(
			Self
			{
				is_grid
			}
		)
	}
}