Slider broadcasts slide event when manipulated with key presses

scrollcontainer.go

@@ -104,6 +104,29 @@ func (this *ScrollContainer) SetRoot (root tomo.ContentBox) {
 	}
 }
 
+// SetValue sets the horizontal and vertical scrollbar values where 0 is all the
+// way to the left/top, and 1 is all the way to the right/bottom.
+func (this *ScrollContainer) SetValue (x, y float64) {
+	if this.layout.horizontal != nil {
+		this.layout.horizontal.SetValue(x)
+	}
+	if this.layout.vertical != nil {
+		this.layout.vertical.SetValue(y)
+	}
+}
+
+// Value returns the horizontal and vertical scrollbar values where 0 is all the
+// way to the left/top, and 1 is all the way to the right/bottom.
+func (this *ScrollContainer) Value () (x, y float64) {
+	if this.layout.horizontal != nil {
+		x = this.layout.horizontal.Value()
+	}
+	if this.layout.vertical != nil {
+		y = this.layout.vertical.Value()
+	}
+	return x, y
+}
+
 func (this *ScrollContainer) handleScroll (x, y float64) {
 	if this.layout.root == nil { return }
 	this.layout.root.ScrollTo (

slider.go

@@ -98,16 +98,20 @@ func (this *Slider) handleKeyDown (key input.Key, numpad bool) {
 		} else {
 			this.SetValue(this.Value() - increment)
 		}
+		this.on.slide.Broadcast()
 	case input.KeyDown, input.KeyRight:
 		if this.Modifiers().Alt {
 			this.SetValue(1)
 		} else {
 			this.SetValue(this.Value() + increment)
 		}
+		this.on.slide.Broadcast()
 	case input.KeyHome:
 		this.SetValue(0)
+		this.on.slide.Broadcast()
 	case input.KeyEnd:
 		this.SetValue(1)
+		this.on.slide.Broadcast()
 	}
 }