servo/components/style/values/generics/page.rs
2021-02-26 16:44:05 +01:00

114 lines
2.1 KiB
Rust

/* 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 https://mozilla.org/MPL/2.0/. */
//! @page at-rule properties
/// Page size names.
///
/// https://drafts.csswg.org/css-page-3/#typedef-page-size-page-size
#[derive(
Clone,
Copy,
Debug,
Eq,
MallocSizeOf,
Parse,
PartialEq,
SpecifiedValueInfo,
ToComputedValue,
ToCss,
ToResolvedValue,
ToShmem,
)]
#[repr(u8)]
pub enum PaperSize {
/// ISO A5 media
A5,
/// ISO A4 media
A4,
/// ISO A3 media
A3,
/// ISO B5 media
B5,
/// ISO B4 media
B4,
/// JIS B5 media
JisB5,
/// JIS B4 media
JisB4,
/// North American Letter size
Letter,
/// North American Legal size
Legal,
/// North American Ledger size
Ledger,
}
/// Paper orientation
///
/// https://drafts.csswg.org/css-page-3/#page-size-prop
#[derive(
Clone,
Copy,
Debug,
Eq,
MallocSizeOf,
Parse,
PartialEq,
SpecifiedValueInfo,
ToComputedValue,
ToCss,
ToResolvedValue,
ToShmem,
)]
#[repr(u8)]
pub enum Orientation {
/// Portrait orientation
Portrait,
/// Landscape orientation
Landscape,
}
/// Page size property
///
/// https://drafts.csswg.org/css-page-3/#page-size-prop
#[derive(
Clone,
Copy,
Debug,
MallocSizeOf,
PartialEq,
SpecifiedValueInfo,
ToComputedValue,
ToCss,
ToResolvedValue,
ToShmem,
)]
#[repr(C, u8)]
pub enum PageSize<S> {
/// Page dimensions.
Size(S),
/// Paper size with no orientation.
PaperSize(PaperSize),
/// An orientation with no size.
Orientation(Orientation),
/// Paper size by name, with an orientation.
PaperSizeAndOrientation(PaperSize, Orientation),
/// `auto` value.
Auto,
}
impl<S> PageSize<S> {
/// `auto` value.
#[inline]
pub fn auto() -> Self {
PageSize::Auto
}
/// Whether this is the `auto` value.
#[inline]
pub fn is_auto(&self) -> bool {
matches!(*self, PageSize::Auto)
}
}