mirror of
https://github.com/rust-windowing/winit.git
synced 2026-06-27 23:23:14 -04:00
dbcdb6f1b4
Added `Window::safe_area`, which describes the area of the surface that is unobstructed by notches, bezels etc. The drawing code in the examples have been updated to draw a star inside the safe area, and the plain background outside of it. Also renamed `Window::inner_position` to `Window::surface_position`, and changed it to from screen coordinates to window coordinates, to better align how these coordinate systems work together. Finally, added some SVG images and documentation to describe how all of this works. This is fully implemented on macOS and iOS, and partially on the web. Co-authored-by: daxpedda <daxpedda@gmail.com>
57 lines
2.0 KiB
Rust
57 lines
2.0 KiB
Rust
use dpi::{LogicalPosition, LogicalSize};
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use wasm_bindgen::JsCast;
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use web_sys::{Document, HtmlHtmlElement, Window};
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use super::Style;
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pub struct SafeAreaHandle {
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style: Style,
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}
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impl SafeAreaHandle {
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pub fn new(window: &Window, document: &Document) -> Self {
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let document: HtmlHtmlElement = document.document_element().unwrap().unchecked_into();
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#[allow(clippy::disallowed_methods)]
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let write = document.style();
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write
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.set_property(
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"--__winit_safe_area",
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"env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) \
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env(safe-area-inset-left)",
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)
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.expect("unexpected read-only declaration block");
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#[allow(clippy::disallowed_methods)]
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let read = window
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.get_computed_style(&document)
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.expect("failed to obtain computed style")
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// this can't fail: we aren't using a pseudo-element
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.expect("invalid pseudo-element");
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SafeAreaHandle { style: Style { read, write } }
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}
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pub fn get(&self) -> (LogicalPosition<f64>, LogicalSize<f64>) {
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let value = self.style.get("--__winit_safe_area");
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let mut values = value
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.split(' ')
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.map(|value| value.strip_suffix("px").expect("unexpected unit other then `px` found"));
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let top: f64 = values.next().unwrap().parse().unwrap();
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let right: f64 = values.next().unwrap().parse().unwrap();
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let bottom: f64 = values.next().unwrap().parse().unwrap();
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let left: f64 = values.next().unwrap().parse().unwrap();
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assert_eq!(values.next(), None, "unexpected fifth value");
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let width = super::style_size_property(&self.style, "width") - left - right;
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let height = super::style_size_property(&self.style, "height") - top - bottom;
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(LogicalPosition::new(left, top), LogicalSize::new(width, height))
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}
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}
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impl Drop for SafeAreaHandle {
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fn drop(&mut self) {
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self.style.remove("--__winit_safe_area");
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}
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}
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