layout,app: [API] rename FrameEvent.Queue and Context.Queue to Source

We're about to replace the interface Queue with a concrete input.Source.
This change renames the field accordingly.

Signed-off-by: Elias Naur <mail@eliasnaur.com>

app/app.go

@@ -53,8 +53,8 @@ type FrameEvent struct {
 	// Frame completes the FrameEvent by drawing the graphical operations
 	// from ops into the window.
 	Frame func(frame *op.Ops)
-	// Queue supplies the events for event handlers.
-	Queue event.Queue
+	// Source supplies the events for event handlers.
+	Source event.Queue
 }
 
 // Insets is the space taken up by
@@ -96,7 +96,7 @@ func NewContext(ops *op.Ops, e FrameEvent) layout.Context {
 	return layout.Context{
 		Ops:         ops,
 		Now:         e.Now,
-		Queue:       e.Queue,
+		Source:      e.Source,
 		Metric:      e.Metric,
 		Constraints: layout.Exact(size),
 	}

app/ime_test.go

@@ -34,7 +34,7 @@ func FuzzIME(f *testing.F) {
 		e.Focus()
 
 		var r input.Router
-		gtx := layout.Context{Ops: new(op.Ops), Queue: &r}
+		gtx := layout.Context{Ops: new(op.Ops), Source: &r}
 		// Layout once to register focus.
 		e.Layout(gtx, cache, font.Font{}, unit.Sp(10), op.CallOp{}, op.CallOp{})
 		r.Frame(gtx.Ops)

app/window.go

@@ -832,7 +832,7 @@ func (w *Window) processEvent(d driver, e event.Event) bool {
 		w.metric = e2.Metric
 		w.hasNextFrame = false
 		e2.Frame = w.update
-		e2.Queue = &w.queue
+		e2.Source = &w.queue
 
 		// Prepare the decorations and update the frame insets.
 		wrapper := &w.decorations.Ops
@@ -1014,7 +1014,7 @@ func (w *Window) decorate(d driver, e FrameEvent, o *op.Ops) (size, offset image
 	gtx := layout.Context{
 		Ops:         o,
 		Now:         e.Now,
-		Queue:       e.Queue,
+		Source:      e.Source,
 		Metric:      e.Metric,
 		Constraints: layout.Exact(e.Size),
 	}