check tabs before closing the window (fixes #520)

terminus-core/src/components/windowControls.component.pug

@@ -9,7 +9,7 @@ button.btn.btn-secondary.btn-maximize(
     svg(version='1.1', width='10', height='10')
         path(d='M 0,0 0,10 10,10 10,0 Z M 1,1 9,1 9,9 1,9 Z')
 button.btn.btn-secondary.btn-close(
-    (click)='hostApp.getWindow().close()',
+    (click)='app.closeWindow()'
 )
     svg(version='1.1', width='10', height='10')
         path(d='M 0,0 0,0.7 4.3,5 0,9.3 0,10 0.7,10 5,5.7 9.3,10 10,10 10,9.3 5.7,5 10,0.7 10,0 9.3,0 5,4.3 0.7,0 Z')

terminus-core/src/components/windowControls.component.ts

@@ -1,5 +1,6 @@
 import { Component } from '@angular/core'
 import { HostAppService } from '../services/hostApp.service'
+import { AppService } from '../services/app.service'
 
 @Component({
     selector: 'window-controls',
@@ -7,5 +8,5 @@ import { HostAppService } from '../services/hostApp.service'
     styles: [require('./windowControls.component.scss')],
 })
 export class WindowControlsComponent {
-    constructor (public hostApp: HostAppService) { }
+    constructor (public hostApp: HostAppService, public app: AppService) { }
 }

terminus-core/src/services/app.service.ts

@@ -64,6 +64,8 @@ export class AppService {
         log: LogService,
     ) {
         this.logger = log.create('app')
+
+        this.hostApp.windowCloseRequest$.subscribe(() => this.closeWindow())
     }
 
     openNewTab (type: TabComponentType, inputs?: any): BaseTabComponent {
@@ -158,6 +160,18 @@ export class AppService {
         this.tabClosed.next(tab)
     }
 
+    async closeWindow () {
+        for (let tab of this.tabs) {
+            if (!await tab.canClose()) {
+                return
+            }
+        }
+        for (let tab of this.tabs) {
+            tab.destroy()
+        }
+        this.hostApp.closeWindow()
+    }
+
     emitReady () {
         this.ready.next(null)
         this.ready.complete()

terminus-core/src/services/hostApp.service.ts

@@ -28,6 +28,7 @@ export class HostAppService {
     private cliRunCommand = new Subject<string[]>()
     private cliPaste = new Subject<string>()
     private configChangeBroadcast = new Subject<void>()
+    private windowCloseRequest = new Subject<void>()
     private logger: Logger
     private windowId: number
 
@@ -37,6 +38,7 @@ export class HostAppService {
     get cliRunCommand$ (): Observable<string[]> { return this.cliRunCommand }
     get cliPaste$ (): Observable<string> { return this.cliPaste }
     get configChangeBroadcast$ (): Observable<void> { return this.configChangeBroadcast }
+    get windowCloseRequest$ (): Observable<void> { return this.windowCloseRequest }
 
     constructor (
         private zone: NgZone,
@@ -72,6 +74,10 @@ export class HostAppService {
             this.zone.run(() => this.shown.emit())
         })
 
+        electron.ipcRenderer.on('host:window-close-request', () => {
+            this.zone.run(() => this.windowCloseRequest.next())
+        })
+
         electron.ipcRenderer.on('host:second-instance', (_$event, argv: any, cwd: string) => this.zone.run(() => {
             this.logger.info('Second instance', argv)
             const op = argv._[0]
@@ -186,6 +192,10 @@ export class HostAppService {
         this.electron.ipcRenderer.send('window-bring-to-front')
     }
 
+    closeWindow () {
+        this.electron.ipcRenderer.send('window-close')
+    }
+
     quit () {
         this.logger.info('Quitting')
         this.electron.app.quit()