From 85331a7088f7be8f546ee094cacfaf8fa5dd78db Mon Sep 17 00:00:00 2001
From: Daniel Scalzi <d_scalzi@yahoo.com>
Date: Sat, 30 Jun 2018 15:16:31 -0400
Subject: [PATCH] Added keyboard controls to the News UI.

On the landing view, the up arrow will open the News UI.
On the News UI, the left and right arrow keys will switch articles.

Thanks to aaronholtomcook/ElectronLauncher (https://github.com/aaronholtomcook/ElectronLauncher/commit/26659f8c383d85e3857ee3cf5be64bcd84fb76cb)
---
 app/assets/js/scripts/landing.js | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/app/assets/js/scripts/landing.js b/app/assets/js/scripts/landing.js
index 6369ec93..524d4703 100644
--- a/app/assets/js/scripts/landing.js
+++ b/app/assets/js/scripts/landing.js
@@ -969,7 +969,7 @@ function initNews(){
             
                     displayArticle(newsArr[nxtArt], nxtArt+1)
                 }
-            
+
                 document.getElementById('newsNavigateRight').onclick = () => { switchHandler(true) }
                 document.getElementById('newsNavigateLeft').onclick = () => { switchHandler(false) }
 
@@ -986,6 +986,30 @@ function initNews(){
     })
 }
 
+/**
+ * Add keyboard controls to the news UI. Left and right arrows toggle
+ * between articles. If you are on the landing page, the up arrow will
+ * open the news UI.
+ */
+document.addEventListener('keydown', (e) => {
+    if(newsActive){
+        if(e.key === 'ArrowRight' || e.key === 'ArrowLeft'){
+            document.getElementById(e.key === 'ArrowRight' ? 'newsNavigateRight' : 'newsNavigateLeft').click()
+        }
+        // Interferes with scrolling an article using the down arrow.
+        // Not sure of a straight forward solution at this point.
+        // if(e.key === 'ArrowDown'){
+        //     document.getElementById('newsButton').click()
+        // }
+    } else {
+        if(getCurrentView() === VIEWS.landing){
+            if(e.key === 'ArrowUp'){
+                document.getElementById('newsButton').click()
+            }
+        }
+    }
+})
+
 /**
  * Display a news article on the UI.
  *