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Commit 1cbf78de authored by Matt Pietal's avatar Matt Pietal
Browse files

Controls UI - Prevent parent scroll while using dragging control 

Any vertical diff while dragging would stop the drag, and scroll the
parent. Request the parent to let the child maintain focus.

Bug: 152493182
Test: manual, dim a light with enough controls to scroll
Change-Id: I4b00db3501c16521dc3156dc4631aa533fdf17ae
parent 5e8e9e5f

packages/SystemUI/src/com/android/systemui/controls/ui/ToggleRangeBehavior.kt

+3 −1
Original line number Diff line number Diff line
@@ -64,12 +64,13 @@ class ToggleRangeBehavior : Behavior { 


        val gestureListener = ToggleRangeGestureListener(cvh.layout)

        val gestureDetector = GestureDetector(context, gestureListener)

        cvh.layout.setOnTouchListener { _: View, e: MotionEvent ->

        cvh.layout.setOnTouchListener { v: View, e: MotionEvent ->

            if (gestureDetector.onTouchEvent(e)) {

                return@setOnTouchListener true

            }



            if (e.getAction() == MotionEvent.ACTION_UP && gestureListener.isDragging) {

                v.getParent().requestDisallowInterceptTouchEvent(false)

                gestureListener.isDragging = false

                endUpdateRange()

                return@setOnTouchListener true
@@ -254,6 +255,7 @@ class ToggleRangeBehavior : Behavior { 
            yDiff: Float

        ): Boolean {

            if (!isDragging) {

                v.getParent().requestDisallowInterceptTouchEvent(true)

                this@ToggleRangeBehavior.beginUpdateRange()

                isDragging = true

            }