WIP: WASM Support

Initial support for WASM `temp://` using OPFS.

Author: bushrat011899

Cargo.toml

@@ -1446,7 +1446,7 @@ doc-scrape-examples = true
 name = "Temporary assets"
 description = "How to use the temporary asset source"
 category = "Assets"
-wasm = false
+wasm = true
 
 # Async Tasks
 [[example]]

crates/bevy_asset/Cargo.toml

@@ -51,9 +51,19 @@ web-sys = { version = "0.3", features = [
   "Window",
   "Response",
   "WorkerGlobalScope",
+  "Navigator",
+  "StorageManager",
+  "FileSystemFileHandle",
+  "FileSystemDirectoryHandle",
+  "FileSystemGetDirectoryOptions",
+  "FileSystemGetFileOptions",
+  "File",
+  "FileSystemWritableFileStream",
+  "FileSystemRemoveOptions",
 ] }
 wasm-bindgen-futures = "0.4"
 js-sys = "0.3"
+async-channel = "2.2.0"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 notify-debouncer-full = { version = "0.3.1", optional = true }

crates/bevy_asset/src/io/wasm.rs

@@ -8,6 +8,10 @@ use wasm_bindgen::{prelude::wasm_bindgen, JsCast, JsValue};
 use wasm_bindgen_futures::JsFuture;
 use web_sys::Response;
 
+mod opfs;
+
+pub use opfs::*;
+
 /// Represents the global object in the JavaScript context
 #[wasm_bindgen]
 extern "C" {