context menu (fixes #42)

terminus-terminal/src/services/terminal.service.ts

@@ -1,25 +1,37 @@
-import { Injectable } from '@angular/core'
-import { AppService, Logger, LogService } from 'terminus-core'
-import { IShell } from '../api'
+import { AsyncSubject } from 'rxjs'
+import { Injectable, Inject } from '@angular/core'
+import { AppService, Logger, LogService, ConfigService } from 'terminus-core'
+import { IShell, ShellProvider } from '../api'
 import { SessionsService } from './sessions.service'
 import { TerminalTabComponent } from '../components/terminalTab.component'
 
 @Injectable()
 export class TerminalService {
+    shells$ = new AsyncSubject<IShell[]>()
     private logger: Logger
 
     constructor (
         private app: AppService,
         private sessions: SessionsService,
+        private config: ConfigService,
+        @Inject(ShellProvider) shellProviders: ShellProvider[],
         log: LogService,
     ) {
         this.logger = log.create('terminal')
+        Promise.all(shellProviders.map(x => x.provide())).then(shellLists => {
+            this.shells$.next(shellLists.reduce((a, b) => a.concat(b)))
+            this.shells$.complete()
+        })
     }
 
-    async openTab (shell: IShell, cwd?: string): Promise<TerminalTabComponent> {
+    async openTab (shell?: IShell, cwd?: string): Promise<TerminalTabComponent> {
         if (!cwd && this.app.activeTab instanceof TerminalTabComponent) {
             cwd = await this.app.activeTab.session.getWorkingDirectory()
         }
+        if (!shell) {
+            let shells = await this.shells$.toPromise()
+            shell = shells.find(x => x.id === this.config.store.terminal.shell) || shells[0]
+        }
         let env: any = Object.assign({}, process.env, shell.env || {})
 
         this.logger.log(`Starting shell ${shell.name}`, shell)
@@ -34,7 +46,7 @@ export class TerminalService {
 
         return this.app.openNewTab(
             TerminalTabComponent,
-            { sessionOptions }
+            { sessionOptions, shell }
         ) as TerminalTabComponent
     }
 }