another try at tui

assets/disk0/tvdos/tuidev/doc.md

@@ -0,0 +1,35 @@
+
+DATA STRUCTURE
+
+```
+[
+    [main Window Objects],
+    [popup Window Objects] 
+]
+```
+
+Window Object
+
+```javascript
+{
+  "isFocused": false,
+  "inputProcessor": (this, inputEvent) => { ... },
+  "drawFrame": (this) => { ... },
+  "drawContents": (this) => { ... },
+  "width": 20,
+  "height": 12,
+  "x": 1,
+  "y": 3,
+  "title": undefined
+}
+```
+
+BEHAVIOUR
+
+1. Key event is parsed
+2. If key is Tab, move focus to the next Window Object within the current window
+3. If not, pass the event to the currently focused Window Object
+
+No key combination will allow navigating between windows
+e.g. Tabbing on the question popup will just loop through the Ok/Cancel buttons, until the buttons are pressed.
+