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On Web, implement WindowEvent::Occluded (#2940)

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daxpedda 2023-07-10 02:02:38 +02:00 • committed by GitHub
parent bd890e69aa
commit 5e0e1e96bc
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9 changed files with 165 additions and 9 deletions
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26
src/platform_impl/web/web_sys/mod.rs
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@ -1,6 +1,7 @@
mod canvas;
pub mod event;
mod event_handle;
mod intersection_handle;
mod media_query_handle;
mod pointer;
mod resize_scaling;
@ -16,7 +17,9 @@ use crate::dpi::LogicalSize;
use crate::platform::web::WindowExtWebSys;
use crate::window::Window;
use wasm_bindgen::closure::Closure;
use web_sys::{CssStyleDeclaration, Element, HtmlCanvasElement, PageTransitionEvent};
use web_sys::{
CssStyleDeclaration, Element, HtmlCanvasElement, PageTransitionEvent, VisibilityState,
};
pub fn throw(msg: &str) {
wasm_bindgen::throw_str(msg);
@ -136,4 +139,25 @@ pub fn is_dark_mode(window: &web_sys::Window) -> Option<bool> {
.map(|media| media.matches())
}
pub fn is_visible(window: &web_sys::Window) -> bool {
let document = window.document().expect("Failed to obtain document");
document.visibility_state() == VisibilityState::Visible
}
pub fn is_intersecting(window: &web_sys::Window, canvas: &HtmlCanvasElement) -> bool {
let rect = canvas.get_bounding_client_rect();
// This should never panic.
let window_width = window.inner_width().unwrap().as_f64().unwrap() as i32;
let window_height = window.inner_height().unwrap().as_f64().unwrap() as i32;
let left = rect.left() as i32;
let width = rect.width() as i32;
let top = rect.top() as i32;
let height = rect.height() as i32;
let horizontal = left <= window_width && left + width >= 0;
let vertical = top <= window_height && top + height >= 0;
horizontal && vertical
}
pub type RawCanvasType = HtmlCanvasElement;