migrations/egui
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Improve documentation of eframe, especially for wasm32 (#3295)

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* Improve documentation of `eframe`, especially for wasm32

* remove dead code

* fix
This commit is contained in:
Emil Ernerfeldt
2023-09-04 09:55:47 +02:00
committed by GitHub
parent 209cbeb030
commit 5f742b9aba
12 changed files with 69 additions and 61 deletions
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27
crates/eframe/src/web/backend.rs
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@@ -10,13 +10,14 @@ use super::percent_decode;
/// Data gathered between frames.
#[derive(Default)]
pub struct WebInput {
pub(crate) struct WebInput {
/// Required because we don't get a position on touched
pub latest_touch_pos: Option<egui::Pos2>,
/// Required to maintain a stable touch position for multi-touch gestures.
pub latest_touch_pos_id: Option<egui::TouchId>,
/// The raw input to `egui`.
pub raw: egui::RawInput,
}
@@ -41,10 +42,8 @@ impl WebInput {
// ----------------------------------------------------------------------------
use std::sync::atomic::Ordering::SeqCst;
/// Stores when to do the next repaint.
pub struct NeedRepaint(Mutex<f64>);
pub(crate) struct NeedRepaint(Mutex<f64>);
impl Default for NeedRepaint {
fn default() -> Self {
@@ -74,30 +73,14 @@ impl NeedRepaint {
}
}
pub struct IsDestroyed(std::sync::atomic::AtomicBool);
impl Default for IsDestroyed {
fn default() -> Self {
Self(false.into())
}
}
impl IsDestroyed {
pub fn fetch(&self) -> bool {
self.0.load(SeqCst)
}
pub fn set_true(&self) {
self.0.store(true, SeqCst);
}
}
// ----------------------------------------------------------------------------
/// The User-Agent of the user's browser.
pub fn user_agent() -> Option<String> {
web_sys::window()?.navigator().user_agent().ok()
}
/// Get the [`epi::Location`] from the browser.
pub fn web_location() -> epi::Location {
let location = web_sys::window().unwrap().location();