Add a helper to check if the extension is installed when using from t…

…he extension api

examples/extension/sidepanel.cjs

@@ -62,8 +62,9 @@ const createMessage = (header) => {
   return { $message, $messageBody }
 }
 
-logTask('Checking for ai...', (log) => {
-  log(!!ai)
+logTask('Checking for ai...', async (log) => {
+  const capabilities = await ai.capabilities()
+  log(capabilities.extension === true)
 })
 
 $go.addEventListener('click', async () => {

examples/package.json

@@ -5,6 +5,7 @@
   "type": "module",
   "scripts": {
     "start": "webpack serve --open --mode=development",
+    "watch": "webpack watch --mode=development",
     "test": "npx standard",
     "dev": "webpack --mode=development",
     "prod": "webpack --mode=production"

examples/webpack.config.cjs

@@ -16,6 +16,7 @@ module.exports = function (env, args) {
     let entry
     let plugins
     let devServer
+    let optimization
     switch (target) {
       case 'playground':
         entry = { index: path.join(srcDir, 'index.js') }
@@ -26,6 +27,9 @@ module.exports = function (env, args) {
           static: targetOutDir,
           hot: true
         }
+        optimization = {
+          runtimeChunk: 'single'
+        }
         break
       case 'extension':
         entry = { background: path.join(srcDir, 'background.cjs'), sidepanel: path.join(srcDir, 'sidepanel.cjs') }
@@ -94,9 +98,7 @@ module.exports = function (env, args) {
           '.json'
         ]
       },
-      optimization: {
-        runtimeChunk: 'single'
-      }
+      optimization
     }
   })
 }

src/extension/contentscript-main/AI.ts

@@ -7,6 +7,7 @@ import IPC from './IPC'
 import { kAIGetCapabilities } from '#Shared/API/AIIPCTypes'
 import { throwIPCErrorResponse } from '#Shared/IPC/IPCErrorHelper'
 import { AICapabilities } from '#Shared/API/AI'
+import { kExtensionNotFound } from '#Shared/BrowserErrors'
 
 class AI extends EventTarget {
   /* **************************************************************************/
@@ -60,10 +61,23 @@ class AI extends EventTarget {
   /* **************************************************************************/
 
   capabilities = async () => {
-    const capabilities = throwIPCErrorResponse(
-      await IPC.request(kAIGetCapabilities, {})
-    ) as AICapabilities
-    return capabilities
+    if (process.env.BROWSER !== 'extlib') {
+      const capabilities = throwIPCErrorResponse(
+        await IPC.request(kAIGetCapabilities, {})
+      ) as AICapabilities
+      return capabilities
+    } else {
+      try {
+        const capabilities = await IPC.request(kAIGetCapabilities, {})
+        return capabilities as AICapabilities
+      } catch (ex) {
+        if (ex.message === kExtensionNotFound) {
+          return { extension: false, helper: false } as AICapabilities
+        } else {
+          throw ex
+        }
+      }
+    }
   }
 }
 

src/shared/API/AI.ts

@@ -30,6 +30,7 @@ export enum AICapabilityPromptType {
 /* **************************************************************************/
 
 export type AICapabilities = {
+  extension: boolean
   helper: boolean
 }
 

src/shared/BrowserErrors.ts

@@ -1 +1,2 @@
 export const kNativeMessagingHostNotFound = 'Specified native messaging host not found.'
+export const kExtensionNotFound = 'Could not establish connection. Receiving end does not exist.'