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// 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.


/// A [`@page`][page] rule.
/// [page]: https://drafts.csswg.org/css2/page.html#page-box
/// [page-selectors]: https://drafts.csswg.org/css2/page.html#page-selectors
#[derive(Default, Debug, Clone, Ord, PartialOrd, Eq, PartialEq, Hash)]
pub struct PageAtRule
{
	pub page_selector_pseudo_class: Option<PageSelectorPseudoClass>,
	
	/// The declaration block this page rule contains.
	pub property_declarations: PropertyDeclarations<Importance>,
}

impl ToCss for PageAtRule
{
	fn to_css<W: fmt::Write>(&self, dest: &mut W) -> fmt::Result
	{
		dest.write_str("@page")?;
		if let Some(ref page_selector_pseudo_class) = self.page_selector_pseudo_class
		{
			dest.write_char(' ')?;
			page_selector_pseudo_class.to_css(dest)?;
		}
		dest.write_char('{')?;
		self.property_declarations.to_css(dest)?;
		dest.write_char('}')
	}
}

impl HasPropertyDeclarations<Importance> for PageAtRule
{
	#[inline(always)]
	fn property_declarations(&self) -> &PropertyDeclarations<Importance>
	{
		&self.property_declarations
	}
	
	#[inline(always)]
	fn property_declarations_mut(&mut self) -> &mut PropertyDeclarations<Importance>
	{
		&mut self.property_declarations
	}
	
	#[inline(always)]
	fn property_declarations_slice(&self) -> &[PropertyDeclaration<Importance>]
	{
		&self.property_declarations.0[..]
	}
	
	#[inline(always)]
	fn property_declarations_vec(&self) -> &Vec<PropertyDeclaration<Importance>>
	{
		&self.property_declarations.0
	}
	
	#[inline(always)]
	fn property_declarations_vec_mut(&mut self) -> &mut Vec<PropertyDeclaration<Importance>>
	{
		&mut self.property_declarations.0
	}
}