feat: add js package registry support for tinymist-wasm (#2102)

Co-authored-by: Myriad-Dreamin <camiyoru@gmail.com>

crates/tinymist-project/Cargo.toml

@@ -34,7 +34,9 @@ tinymist-l10n.workspace = true
 toml = { workspace = true, optional = true }
 typst.workspace = true
 typst-assets.workspace = true
-notify.workspace = true
+notify = { workspace = true, optional = true }
+js-sys = { workspace = true, optional = true }
+wasm-bindgen = { workspace = true, optional = true }
 
 [features]
 
@@ -43,8 +45,8 @@ no-content-hint = ["tinymist-task/no-content-hint"]
 lsp = ["toml"]
 # "system", 
 
-system = ["tinymist-std/system", "tinymist-world/system", "toml"]
-web = ["tinymist-std/web", "tinymist-world/web"]
+system = ["tinymist-std/system", "tinymist-world/system", "toml", "notify"]
+web = ["tinymist-std/web", "tinymist-world/web", "js-sys", "wasm-bindgen"]
 
 [lints]
 workspace = true

crates/tinymist-project/src/lsp.rs

@@ -5,6 +5,8 @@ use tinymist_std::ImmutPath;
 use tinymist_std::error::prelude::*;
 use tinymist_task::ExportTarget;
 use tinymist_world::package::RegistryPathMapper;
+#[cfg(all(not(feature = "system"), feature = "web"))]
+use tinymist_world::package::registry::ProxyContext;
 use tinymist_world::vfs::Vfs;
 use tinymist_world::{
     CompileSnapshot, CompilerFeat, CompilerUniverse, CompilerWorld, EntryOpts, EntryState,
@@ -28,12 +30,11 @@ impl CompilerFeat for LspCompilerFeat {
     type FontResolver = FontResolverImpl;
     /// It accesses a physical file system.
     type AccessModel = DynAccessModel;
-    /// It performs native HTTP requests for fetching package data.
-    #[cfg(feature = "system")]
-    type Registry = tinymist_world::package::registry::HttpRegistry;
-    // todo: registry in browser
-    #[cfg(not(feature = "system"))]
-    type Registry = tinymist_world::package::registry::DummyRegistry;
+    /// It performs:
+    /// - native HTTP requests for fetching package data in system environment
+    /// - js proxied requests to browser environment
+    /// - no package registry in other environments
+    type Registry = LspRegistry;
 }
 
 /// LSP universe that spawns LSP worlds.
@@ -211,10 +212,12 @@ impl WorldProvider for (crate::ProjectInput, ImmutPath) {
     }
 }
 
-#[cfg(not(feature = "system"))]
-type LspRegistry = tinymist_world::package::registry::DummyRegistry;
+#[cfg(all(not(feature = "system"), feature = "web"))]
+type LspRegistry = tinymist_world::package::registry::JsRegistry;
 #[cfg(feature = "system")]
 type LspRegistry = tinymist_world::package::registry::HttpRegistry;
+#[cfg(not(any(feature = "system", feature = "web")))]
+type LspRegistry = tinymist_world::package::registry::DummyRegistry;
 
 /// Builder for LSP universe.
 pub struct LspUniverseBuilder;
@@ -318,7 +321,20 @@ impl LspUniverseBuilder {
     }
 
     /// Resolves package registry from given options.
-    #[cfg(not(feature = "system"))]
+    #[cfg(all(not(feature = "system"), feature = "web"))]
+    pub fn resolve_package(
+        _cert_path: Option<ImmutPath>,
+        _args: Option<&CompilePackageArgs>,
+        resolve_fn: js_sys::Function,
+    ) -> tinymist_world::package::registry::JsRegistry {
+        tinymist_world::package::registry::JsRegistry {
+            context: ProxyContext::new(wasm_bindgen::JsValue::NULL),
+            real_resolve_fn: resolve_fn,
+        }
+    }
+
+    /// Resolves package registry from given options.
+    #[cfg(not(any(feature = "system", feature = "web")))]
     pub fn resolve_package(
         _cert_path: Option<ImmutPath>,
         _args: Option<&CompilePackageArgs>,