feat: add cursor routing functionality in beta mode, just for barplots (

#503)

src/js/controls.js

@@ -280,13 +280,21 @@ class Control {
 
       // testing for braille cursor routing
       document.addEventListener('selectionchange', function (e) {
+        // notes:
+        // this basically works
+        // constants.braillInput.selectionStart is the key, and is the position,
+        // but it starts at 1, so we need to subtract 1 to get the actual position
+        // hard part is that we need to wire this through the whole script
+        // event is selectionchange, so we'll either need to refactor and do separate events + functions for this,
+        // or pull UpdateAll() etc into their own area so it can be triggered from anywhere
+        // ... ideally let's do that. Better yet, have a global UpdateAll, not per chart
+
         const selection = document.getSelection();
         console.log('Testing cursor routing', new Date().toLocaleTimeString());
         console.log('selection: ', selection);
-
         let pos = constants.brailleInput.selectionStart;
         console.log('Position: ', pos);
-        position.x = pos;
+        position.x = pos - 1; // selection starts at 1, so we subtract 1 to get the actual position
         let testEnd = lockPosition();
 
         // update display / text / audio