feat: add extension status event & messages

src/chrome/content-script/content-script.ts

@@ -46,3 +46,14 @@ chromeDAppClient.messageListener((message) => {
 chrome.runtime.onMessage.addListener((message: Message) => {
   messageHandler.onMessage(message)
 })
+
+chrome.storage.onChanged.addListener(
+  (changes: { [key: string]: chrome.storage.StorageChange }) => {
+    if (changes['connectionPassword'])
+      sendMessageToDapp(
+        createMessage.extensionStatus(
+          !!changes['connectionPassword']?.newValue,
+        ),
+      )
+  },
+)

src/chrome/content-script/message-handler.ts

@@ -11,6 +11,7 @@ import {
 } from '../messages/_types'
 import { AppLogger } from 'utils/logger'
 import { MessageLifeCycleEvent } from 'chrome/dapp/_types'
+import { getConnectionPassword } from 'chrome/helpers/get-connection-password'
 
 export type ContentScriptMessageHandlerOptions = {
   logger?: AppLogger
@@ -51,6 +52,22 @@ export const ContentScriptMessageHandler =
       }
 
       case messageDiscriminator.incomingDappMessage: {
+        if (
+          message.data.discriminator === messageDiscriminator.extensionStatus
+        ) {
+          return getConnectionPassword()
+            .andThen((connectionPassword) =>
+              sendMessageToDapp(
+                createMessage.extensionStatus(!!connectionPassword),
+              ).map(() => ({ sendConfirmation: false })),
+            )
+            .mapErr((error) => {
+              return {
+                reason: 'unableToGetConnectionPassword',
+              }
+            })
+        }
+
         return sendMessageEventToDapp(
           message.data.interactionId,
           'receivedByExtension',

src/chrome/dapp/_types.ts

@@ -10,6 +10,7 @@ export const messageLifeCycleEvent = {
   receivedByWallet: 'receivedByWallet',
   requestCancelSuccess: 'requestCancelSuccess',
   requestCancelFail: 'requestCancelFail',
+  extensionStatus: 'extensionStatus',
 } as const
 
 export type MessageLifeCycleEvent = keyof typeof messageLifeCycleEvent

src/chrome/messages/_types.ts

@@ -9,6 +9,7 @@ export const messageDiscriminator = {
   closeLedgerTab: 'closeLedgerTab',
   focusLedgerTab: 'focusLedgerTab',
   closeDappTab: 'closeDappTab',
+  extensionStatus: 'extensionStatus',
   ledgerResponse: 'ledgerResponse',
   walletToLedger: 'walletToLedger',
   walletResponse: 'walletResponse',
@@ -67,6 +68,14 @@ export type SendMessageWithConfirmation<T = any> = (
 >
 
 export type Messages = {
+  [messageDiscriminator.extensionStatus]: MessageBuilder<
+    MessageDiscriminator['extensionStatus'],
+    {
+      eventType: MessageDiscriminator['extensionStatus']
+      isWalletLinked: boolean
+      isExtensionAvailable: true
+    }
+  >
   [messageDiscriminator.confirmation]:
     | ConfirmationMessageSuccess
     | ConfirmationMessageError

src/chrome/messages/create-message.ts

@@ -10,6 +10,11 @@ import {
 import { MessageLifeCycleEvent } from 'chrome/dapp/_types'
 
 export const createMessage = {
+  extensionStatus: (isWalletLinked: boolean) => ({
+    eventType: 'extensionStatus',
+    isExtensionAvailable: true,
+    isWalletLinked,
+  }),
   offscreenLog: (log: any): Messages['offscreenLog'] => ({
     source: 'any',
     discriminator: 'offscreenLog',