From ea78bad12c90a15163f9eb8db21610d6d5eb727c Mon Sep 17 00:00:00 2001
From: Thomas Kemmer <tkemmer@computer.org>
Date: Sun, 28 Oct 2018 14:29:39 +0100
Subject: [PATCH] Fix #84: Add keyboard shortcuts.

---
 src/rms/rms.page.ts | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/src/rms/rms.page.ts b/src/rms/rms.page.ts
index cea72bed..7af16728 100644
--- a/src/rms/rms.page.ts
+++ b/src/rms/rms.page.ts
@@ -1,6 +1,6 @@
 import { Component, OnDestroy, OnInit } from '@angular/core';
 
-import { NavParams, PopoverController } from 'ionic-angular';
+import { NavParams, PopoverController, ViewController } from 'ionic-angular';
 
 import { TranslateService } from '@ngx-translate/core';
 
@@ -52,6 +52,7 @@ const FIELDS = [{
 @Component({
   providers: [CONTROL_UNIT_PROVIDER],
   templateUrl: 'rms.page.html',
+  host: {'(window:keydown)': 'onKeyDown($event)'}
 })
 export class RmsPage implements OnDestroy, OnInit {
 
@@ -75,8 +76,9 @@ export class RmsPage implements OnDestroy, OnInit {
 
   private subscription: Subscription;
 
-  constructor(public cu: ControlUnit, private logger: Logger, private settings: Settings, private speech: Speech,
-    params: NavParams, private popover: PopoverController, private translate: TranslateService)
+  constructor(public cu: ControlUnit, private logger: Logger, private settings: Settings,
+    private speech: Speech, params: NavParams, private popover: PopoverController,
+    private translate: TranslateService, private view: ViewController)
   {
     this.options = params.data;
 
@@ -281,6 +283,23 @@ export class RmsPage implements OnDestroy, OnInit {
     menu.present({ev: event});
   }
 
+  onKeyDown(event: KeyboardEvent) {
+    if (this.view.isLast()) {
+      switch (event.code) {
+        // on Android, Escape closes the application by default
+        case 'Escape':
+        case 'Space':
+          this.cu.trigger(ControlUnitButton.PACE_CAR);
+          event.stopPropagation();
+          break;
+        case 'Enter':
+          this.cu.trigger(ControlUnitButton.START);
+          event.stopPropagation();
+          break;
+      }
+    }
+  }
+
   // see https://github.com/ngx-translate/core/issues/330
   private getTranslations(key: string, params?: Object) {
     return this.translate.get(key, params).concat(