feat(EWM-353): tvm provider announcer

broxus · Oct 17, 2024 · 681c2bd · 681c2bd
1 parent 5a2ff15
commit 681c2bd
Show file tree

Hide file tree

Showing 6 changed files with 72 additions and 26 deletions.
diff --git a/assets/main.js b/assets/main.js
diff --git a/assets/notifications.d.ts b/assets/notifications.d.ts
@@ -1,4 +1,3 @@
-/// <reference types="node" />
 import { EventEmitter } from "events";
 export declare class NotificationEmitter {
     emitter?: EventEmitter;

diff --git a/assets/utils.d.ts b/assets/utils.d.ts
@@ -1,4 +1,3 @@
-/// <reference types="node" />
 import { EventEmitter } from 'events';
 import { PendingJsonRpcResponse } from './jrpc';
 export type Maybe<T> = Partial<T> | null | undefined;

diff --git a/js/package-lock.json b/js/package-lock.json
diff --git a/js/package.json b/js/package.json
@@ -8,10 +8,10 @@
     "clean": "rm -rf node_modules"
   },
   "devDependencies": {
-    "@types/events": "3.0.1",
-    "everscale-inpage-provider": "0.3.65",
-    "ts-loader": "9.4.4",
-    "typescript": "5.2.2",
+    "@types/events": "3.0.3",
+    "everscale-inpage-provider": "0.3.66",
+    "ts-loader": "9.5.1",
+    "typescript": "5.6.3",
     "webpack-cli": "5.1.4"
   },
   "dependencies": {

diff --git a/js/src/provider.ts b/js/src/provider.ts
@@ -22,6 +22,20 @@ type InitializeProviderOptions = {
     shouldSetOnWindow?: boolean
 }
 
+interface TVMAnnounceProviderEvent extends CustomEvent {
+    type: 'tvm:announceProvider';
+    detail: TVMProviderDetail;
+}
+
+interface TVMProviderDetail {
+    info: TVMProviderInfo;
+    provider: NekotonInpageProvider;
+}
+
+interface TVMProviderInfo {
+    name: string;
+}
+
 export const initializeProvider = ({
                                        logger = console,
                                        maxEventListeners = 100,
@@ -50,6 +64,25 @@ export function setGlobalProvider(
     // TODO: remove later
     ;(window as Record<string, any>).ton = providerInstance
     window.dispatchEvent(new Event('ton#initialized'))
+
+    const announceEvent = new CustomEvent<TVMProviderDetail>('tvm:announceProvider', {
+        detail: Object.freeze({
+            info: {
+                name: 'SparX Wallet',
+            },
+            provider: providerInstance,
+        }),
+    }) as TVMAnnounceProviderEvent
+
+    // The Wallet dispatches an announce event which is heard by
+    // the DApp code that had run earlier
+    window.dispatchEvent(announceEvent)
+
+    // The Wallet listens to the request events which may be
+    // dispatched later and re-dispatches the `TVMAnnounceProviderEvent`
+    window.addEventListener('tvm:requestProvider', () => {
+        window.dispatchEvent(announceEvent)
+    })
 }
 
 interface UnvalidatedJsonRpcRequest {