NEWT/Pointer Confined: Dispatch mouse move events before enabled; Only request-focus/warp-ptr if enabled

Dispatch mouse move events before enabled
  - Allows user app listener to track to the new centered mouse position
    before using the confined position. This is important for position change usage.
    See simplified demo GearsES2

Only request-focus/warp-ptr if enabled
  - No need to request focus and center mouse if leaving confinement

Demo GearsES2:
  - No need to assume some position changes are erroneous (jumps)
    due to confinement.

  - Track unconfined mouse position, allowing confined navigation
    to have the proper position change value

1 files changed, 12 insertions, 3 deletions

diff --git a/src/newt/classes/jogamp/newt/WindowImpl.java b/src/newt/classes/jogamp/newt/WindowImpl.java
index caa91fd7c..f0c351048 100644
--- a/src/newt/classes/jogamp/newt/WindowImpl.java
+++ b/src/newt/classes/jogamp/newt/WindowImpl.java
@@ -1358,12 +1358,21 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
         if(this.pointerConfined != confine) {
             boolean setVal = 0 == getWindowHandle();
             if(!setVal) {
-                requestFocus();
-                warpPointer(width/2, height/2);
+                if(confine) {
+                    requestFocus();
+                    warpPointer(width/2, height/2);
+                }
                 setVal = confinePointerImpl(confine);
+                if(confine) {
+                    // give time to deliver mouse movements w/o confinement,
+                    // this allows user listener to sync previous position value to the new centered position
+                    try {
+                        Thread.sleep(3 * screen.getDisplay().getEDTUtil().getPollPeriod());
+                    } catch (InterruptedException e) { }
+                }
             }
             if(setVal) {
-                this.pointerConfined = confine;                
+                this.pointerConfined = confine;       
             }
         }        
     }