gecko-dev/servo/components/style_traits/lib.rs
Simon Sapin f2b2959821 servo: Merge #15766 - Update cssparser (from servo:cssparserup); r=Manishearth
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https://github.com/servo/rust-cssparser/pull/123

In particular, `match_ignore_ascii_case` now supports the full `match` syntax.

---
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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).

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- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because _____

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Source-Repo: https://github.com/servo/servo
Source-Revision: fbfcfc2dbe838ef011f14a863003a575078f455f

--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : 0be96fc61d6e7a157d88ce68c85a94344dc46d8e
2017-02-28 08:22:27 -08:00

68 lines
2.4 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 http://mozilla.org/MPL/2.0/. */
//! This module contains shared types and messages for use by devtools/script.
//! The traits are here instead of in script so that the devtools crate can be
//! modified independently of the rest of Servo.
#![crate_name = "style_traits"]
#![crate_type = "rlib"]
#![deny(unsafe_code, missing_docs)]
#![cfg_attr(feature = "servo", feature(plugin))]
extern crate app_units;
#[macro_use] extern crate cssparser;
extern crate euclid;
#[cfg(feature = "servo")] extern crate heapsize;
#[cfg(feature = "servo")] #[macro_use] extern crate heapsize_derive;
#[cfg(feature = "servo")] #[macro_use] extern crate serde_derive;
/// Opaque type stored in type-unsafe work queues for parallel layout.
/// Must be transmutable to and from `TNode`.
pub type UnsafeNode = (usize, usize);
/// Represents a mobile style pinch zoom factor.
/// TODO(gw): Once WR supports pinch zoom, use a type directly from webrender_traits.
#[derive(Clone, Copy, Debug, PartialEq)]
#[cfg_attr(feature = "servo", derive(Deserialize, Serialize, HeapSizeOf))]
pub struct PinchZoomFactor(f32);
impl PinchZoomFactor {
/// Construct a new pinch zoom factor.
pub fn new(scale: f32) -> PinchZoomFactor {
PinchZoomFactor(scale)
}
/// Get the pinch zoom factor as an untyped float.
pub fn get(&self) -> f32 {
self.0
}
}
/// One CSS "px" in the coordinate system of the "initial viewport":
/// http://www.w3.org/TR/css-device-adapt/#initial-viewport
///
/// `CSSPixel` is equal to `DeviceIndependentPixel` times a "page zoom" factor controlled by the user. This is
/// the desktop-style "full page" zoom that enlarges content but then reflows the layout viewport
/// so it still exactly fits the visible area.
///
/// At the default zoom level of 100%, one `CSSPixel` is equal to one `DeviceIndependentPixel`. However, if the
/// document is zoomed in or out then this scale may be larger or smaller.
#[derive(Clone, Copy, Debug)]
pub enum CSSPixel {}
// In summary, the hierarchy of pixel units and the factors to convert from one to the next:
//
// DevicePixel
// / hidpi_ratio => DeviceIndependentPixel
// / desktop_zoom => CSSPixel
pub mod cursor;
#[macro_use]
pub mod values;
pub mod viewport;
pub use values::{ToCss, OneOrMoreCommaSeparated};