Fixes #59: keys not controlling processes widget

CHANGELOG.md

@@ -15,11 +15,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [3.4.x] - ??
 
-- Added: metrics. If run with the `--export :2112` flag (`:2112` is a port),
-  metrics are exposed as Prometheus metrics on that port and can be HTTP
-  GET-ted.  
-- Added: a battery gauge as a `power` widget; battery as a bar rather than
+### Added
+
+- Device data export via HTTP. If run with the `--export :2112` flag (`:2112`
+  is a port), metrics are exposed as Prometheus metrics on that port.
+- A battery gauge as a `power` widget; battery as a bar rather than
   a histogram.
+- Temp widget displays degree symbol (merged from BartWillems, thanks
+  also fleaz)
+
+### Fixed
+
+- Keys not controlling process widget, #59
 
 ## [3.3.2] - ??
 

layout/layout.go

@@ -260,7 +260,6 @@ func countMaxHeight(rs [][]widgetRule) int {
 // deepFindProc looks in the UI widget tree for the ProcWidget,
 // and returns it if found or nil if not.
 func deepFindProc(gs interface{}) *widgets.ProcWidget {
-	// FIXME: `procs` layout isn't passing down keystrokes
 	// Recursive function #1.  Recursion is OK here because the number
 	// of UI elements, even in a very complex UI, is going to be
 	// relatively small.
@@ -286,6 +285,15 @@ func deepFindProc(gs interface{}) *widgets.ProcWidget {
 			}
 		}
 	}
+	fs2, ok := gs.([][]interface{})
+	if ok {
+		for _, g := range fs2 {
+			v := deepFindProc(g)
+			if v != nil {
+				return v
+			}
+		}
+	}
 	p, ok := gs.(*widgets.ProcWidget)
 	if ok {
 		return p