85 lines
2.1 KiB
Rust
85 lines
2.1 KiB
Rust
#![cfg(target_arch = "wasm32")]
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use super::*;
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use core::sync::atomic::{AtomicI8, Ordering};
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use js_sys::{global, Reflect};
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use wasm_bindgen::prelude::*;
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#[wasm_bindgen]
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extern "C" {
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// Use `js_namespace` here to bind `console.log(..)` instead of just
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// `log(..)`
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#[wasm_bindgen(js_namespace = console, js_name = log)]
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pub fn console_log(s: &str);
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#[wasm_bindgen]
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pub fn alert(s: &str);
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}
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pub fn is_browser() -> bool {
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static CACHE: AtomicI8 = AtomicI8::new(-1);
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let cache = CACHE.load(Ordering::Relaxed);
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if cache != -1 {
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return cache != 0;
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}
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let res = Reflect::has(global().as_ref(), &"navigator".into()).unwrap_or_default();
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CACHE.store(res as i8, Ordering::Relaxed);
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res
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}
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pub fn is_browser_https() -> bool {
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static CACHE: AtomicI8 = AtomicI8::new(-1);
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let cache = CACHE.load(Ordering::Relaxed);
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if cache != -1 {
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return cache != 0;
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}
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let res = js_sys::eval("self.location.protocol === 'https'")
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.map(|res| res.is_truthy())
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.unwrap_or_default();
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CACHE.store(res as i8, Ordering::Relaxed);
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res
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}
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pub fn get_wasm_global_string_value<K: AsRef<str>>(key: K) -> Option<String> {
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let Ok(v) = Reflect::get(global().as_ref(), &JsValue::from_str(key.as_ref())) else {
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return None;
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};
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v.as_string()
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}
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#[derive(ThisError, Debug, Clone, Eq, PartialEq)]
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#[error("JsValue error")]
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pub struct JsValueError(String);
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pub fn map_jsvalue_error(x: JsValue) -> JsValueError {
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JsValueError(x.as_string().unwrap_or_default())
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}
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static IPV6_IS_SUPPORTED: Mutex<Option<bool>> = Mutex::new(None);
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pub fn is_ipv6_supported() -> bool {
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let mut opt_supp = IPV6_IS_SUPPORTED.lock();
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if let Some(supp) = *opt_supp {
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return supp;
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}
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// let supp = match UdpSocket::bind(SocketAddrV6::new(Ipv6Addr::LOCALHOST, 0, 0, 0)) {
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// Ok(_) => true,
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// Err(e) => !matches!(
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// e.kind(),
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// std::io::ErrorKind::AddrNotAvailable | std::io::ErrorKind::Unsupported
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// ),
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// };
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// XXX: See issue #92
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let supp = false;
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*opt_supp = Some(supp);
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supp
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}
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