open SFTP panel in the CWD

tabby-terminal/src/api/baseTerminalTab.component.ts

@@ -268,16 +268,17 @@ export class BaseTerminalTabComponent extends BaseTabComponent implements OnInit
                     break
             }
         })
+
         this.bellPlayer = document.createElement('audio')
         this.bellPlayer.src = require('../bell.ogg').default
 
         this.contextMenuProviders.sort((a, b) => a.weight - b.weight)
-
-        this.pinToolbar = this.enableToolbar && (window.localStorage.pinTerminalToolbar ?? 'true') === 'true'
     }
 
     /** @hidden */
     ngOnInit (): void {
+        this.pinToolbar = this.enableToolbar && (window.localStorage.pinTerminalToolbar ?? 'true') === 'true'
+
         this.focused$.subscribe(() => {
             this.configure()
             this.frontend?.focus()

tabby-terminal/src/api/osc1337Processing.ts

@@ -0,0 +1,37 @@
+import * as os from 'os'
+import { Subject, Observable } from 'rxjs'
+
+const OSC1337Prefix = Buffer.from('\x1b]1337;')
+const OSC1337Suffix = Buffer.from('\x07')
+
+export class OSC1337Processor {
+    get cwdReported$ (): Observable<string> { return this.cwdReported }
+
+    private cwdReported = new Subject<string>()
+
+    process (data: Buffer): Buffer {
+        if (data.includes(OSC1337Prefix)) {
+            const preData = data.subarray(0, data.indexOf(OSC1337Prefix))
+            const params = data.subarray(data.indexOf(OSC1337Prefix) + OSC1337Prefix.length)
+            const postData = params.subarray(params.indexOf(OSC1337Suffix) + OSC1337Suffix.length)
+            const paramString = params.subarray(0, params.indexOf(OSC1337Suffix)).toString()
+
+            if (paramString.startsWith('CurrentDir=')) {
+                let reportedCWD = paramString.split('=')[1]
+                if (reportedCWD.startsWith('~')) {
+                    reportedCWD = os.homedir() + reportedCWD.substring(1)
+                }
+                this.cwdReported.next(reportedCWD)
+            } else {
+                console.debug('Unsupported OSC 1337 parameter:', paramString)
+            }
+
+            data = Buffer.concat([preData, postData])
+        }
+        return data
+    }
+
+    close (): void {
+        this.cwdReported.complete()
+    }
+}