additional input handler callback: add example (issue-501)

MasterWindow.go

@@ -405,6 +405,7 @@ func (w *MasterWindow) SetInputHandler(handler InputHandler) {
 }
 
 // SetAdditionalInputHandlerCallback allows to set an input callback to handle more events (not only these from giu.inputHandler)
+// see examples/issue-501
 func (w *MasterWindow) SetAdditionalInputHandlerCallback(cb InputHandlerHandleCallback) {
  w.additionalInputCallback = cb
 }

examples/issue-501/main.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+ "github.com/AllenDang/giu"
+)
+
+var (
+ command string
+ shouldFocus bool
+)
+
+func loop() {
+ giu.SingleWindow().Layout(
+ giu.Custom(func() {
+ if shouldFocus {
+ shouldFocus = false
+ giu.SetKeyboardFocusHere()
+ }
+ }),
+ giu.Row(
+ giu.InputText(&command).Size(200),
+ giu.Label("<- press any key to start typing here!"),
+ ),
+ )
+}
+
+func onAnyKeyPressed(key giu.Key, mod giu.Modifier, action giu.Action) {
+ if action == giu.Press {
+ shouldFocus = true
+ }
+}
+
+func main() {
+ wnd := giu.NewMasterWindow("Handle any key event", 640, 480, 0)
+ wnd.SetAdditionalInputHandlerCallback(onAnyKeyPressed)
+ wnd.Run(loop)
+}