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Add frontend file structure docs and some related cleanup

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This commit is contained in:
Keavon Chambers
2022-05-23 19:24:31 -07:00
parent ab77105ffb
commit bec7a4c109
21 changed files with 168 additions and 145 deletions
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frontend/src/wasm-communication/editor.ts
+10 -13
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@@ -25,16 +25,18 @@ export async function initWasm(): Promise<void> {
// Should be called after running `initWasm()` and its promise resolving
// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
export function createEditor() {
// Functions from `api.rs` defined directly on the WASM module, not the editor instance (generated by wasm-bindgen)
const raw: WasmRawInstance = getWasmInstance();
// Raw: Object containing several callable functions from `editor_api.rs` defined directly on the WASM module, not the editor instance (generated by wasm-bindgen)
if (!wasmImport) throw new Error("Editor WASM backend was not initialized at application startup");
const raw: WasmRawInstance = wasmImport;
// Functions from `api.rs` that are part of the editor instance (generated by wasm-bindgen)
const instance: WasmEditorInstance = new raw.JsEditorHandle(invokeJsMessageSubscription);
function invokeJsMessageSubscription(messageType: JsMessageType, data: Record<string, unknown>): void {
subscriptions.handleJsMessage(messageType, data, raw, instance);
}
// Instance: Object containing many functions from `editor_api.rs` that are part of the editor instance (generated by wasm-bindgen)
const instance: WasmEditorInstance = new raw.JsEditorHandle((messageType: JsMessageType, messageData: Record<string, unknown>): void => {
// This callback is called by WASM when a FrontendMessage is received from the WASM wrapper editor instance
// We pass along the first two arguments then add our own `raw` and `instance` context for the last two arguments
subscriptions.handleJsMessage(messageType, messageData, raw, instance);
});
// Allows subscribing to messages in JS that are sent from the WASM backend
// Subscriptions: Allows subscribing to messages in JS that are sent from the WASM backend
const subscriptions: SubscriptionRouter = createSubscriptionRouter();
return {
@@ -43,8 +45,3 @@ export function createEditor() {
subscriptions,
};
}
export function getWasmInstance(): WasmRawInstance {
if (wasmImport) return wasmImport;
throw new Error("Editor WASM backend was not initialized at application startup");
}