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Indicate items in doc comments as code-like. <!-- Reviewable:start --> This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14135) <!-- Reviewable:end -->
64 lines
2.4 KiB
Rust
64 lines
2.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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//! This module contains shared types and messages for use by devtools/script.
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//! The traits are here instead of in script so that the devtools crate can be
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//! modified independently of the rest of Servo.
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#![crate_name = "style_traits"]
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#![crate_type = "rlib"]
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#![deny(unsafe_code)]
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#![cfg_attr(feature = "servo", feature(plugin))]
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#![cfg_attr(feature = "servo", feature(proc_macro))]
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extern crate app_units;
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#[macro_use]
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extern crate cssparser;
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extern crate euclid;
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#[cfg(feature = "servo")] extern crate heapsize;
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#[cfg(feature = "servo")] #[macro_use] extern crate heapsize_derive;
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extern crate rustc_serialize;
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#[cfg(feature = "servo")] extern crate serde;
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#[cfg(feature = "servo")] #[macro_use] extern crate serde_derive;
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/// Opaque type stored in type-unsafe work queues for parallel layout.
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/// Must be transmutable to and from `TNode`.
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pub type UnsafeNode = (usize, usize);
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/// One CSS "px" in the coordinate system of the "initial viewport":
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/// http://www.w3.org/TR/css-device-adapt/#initial-viewport
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///
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/// `ViewportPx` is equal to `ScreenPx` times a "page zoom" factor controlled by the user. This is
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/// the desktop-style "full page" zoom that enlarges content but then reflows the layout viewport
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/// so it still exactly fits the visible area.
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///
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/// At the default zoom level of 100%, one `PagePx` is equal to one `ScreenPx`. However, if the
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/// document is zoomed in or out then this scale may be larger or smaller.
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#[derive(Clone, Copy, Debug)]
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pub enum ViewportPx {}
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/// One CSS "px" in the root coordinate system for the content document.
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///
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/// `PagePx` is equal to `ViewportPx` multiplied by a "viewport zoom" factor controlled by the user.
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/// This is the mobile-style "pinch zoom" that enlarges content without reflowing it. When the
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/// viewport zoom is not equal to 1.0, then the layout viewport is no longer the same physical size
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/// as the viewable area.
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#[derive(Clone, Copy, Debug)]
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pub enum PagePx {}
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// In summary, the hierarchy of pixel units and the factors to convert from one to the next:
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//
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// DevicePixel
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// / hidpi_ratio => ScreenPx
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// / desktop_zoom => ViewportPx
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// / pinch_zoom => PagePx
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pub mod cursor;
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#[macro_use]
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pub mod values;
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pub mod viewport;
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pub use values::ToCss;
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