/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

//! Specified types for box properties.

use cssparser::Parser;
use parser::{Parse, ParserContext};
use style_traits::ParseError;
use values::generics::box_::VerticalAlign as GenericVerticalAlign;
use values::specified::AllowQuirks;
use values::specified::length::LengthOrPercentage;

/// A specified value for the `vertical-align` property.
pub type VerticalAlign = GenericVerticalAlign<LengthOrPercentage>;

impl Parse for VerticalAlign {
    fn parse<'i, 't>(
        context: &ParserContext,
        input: &mut Parser<'i, 't>,
    ) -> Result<Self, ParseError<'i>> {
        if let Ok(lop) = input.try(|i| LengthOrPercentage::parse_quirky(context, i, AllowQuirks::Yes)) {
            return Ok(GenericVerticalAlign::Length(lop));
        }

        try_match_ident_ignore_ascii_case! { input.expect_ident()?,
            "baseline" => Ok(GenericVerticalAlign::Baseline),
            "sub" => Ok(GenericVerticalAlign::Sub),
            "super" => Ok(GenericVerticalAlign::Super),
            "top" => Ok(GenericVerticalAlign::Top),
            "text-top" => Ok(GenericVerticalAlign::TextTop),
            "middle" => Ok(GenericVerticalAlign::Middle),
            "bottom" => Ok(GenericVerticalAlign::Bottom),
            "text-bottom" => Ok(GenericVerticalAlign::TextBottom),
            #[cfg(feature = "gecko")]
            "-moz-middle-with-baseline" => {
                Ok(GenericVerticalAlign::MozMiddleWithBaseline)
            },
        }
    }
}