UnityEngine.EventSystems.SwitchTouchInputModule.ProcessTouchPress C# (CSharp) Method

        private void ProcessTouchPress(PointerEventData pointerEvent, bool pressed, bool released)
        {
            var currentOverGo = pointerEvent.pointerCurrentRaycast.gameObject;

            // PointerDown notification
            if (pressed)
            {
                pointerEvent.eligibleForClick = true;
                pointerEvent.delta = Vector2.zero;
                pointerEvent.dragging = false;
                pointerEvent.useDragThreshold = true;
                pointerEvent.pressPosition = pointerEvent.position;
                pointerEvent.pointerPressRaycast = pointerEvent.pointerCurrentRaycast;

                DeselectIfSelectionChanged(currentOverGo, pointerEvent);

                if (pointerEvent.pointerEnter != currentOverGo)
                {
                    // send a pointer enter to the touched element if it isn't the one to select...
                    HandlePointerExitAndEnter(pointerEvent, currentOverGo);
                    pointerEvent.pointerEnter = currentOverGo;
                }

                // search for the control that will receive the press
                // if we can't find a press handler set the press
                // handler to be what would receive a click.
                var newPressed = ExecuteEvents.ExecuteHierarchy(currentOverGo, pointerEvent, ExecuteEvents.pointerDownHandler);

                // didnt find a press handler... search for a click handler
                if (newPressed == null)
                    newPressed = ExecuteEvents.GetEventHandler<IPointerClickHandler>(currentOverGo);

                // Debug.Log("Pressed: " + newPressed);

                float time = Time.unscaledTime;

                if (newPressed == pointerEvent.lastPress)
                {
                    var diffTime = time - pointerEvent.clickTime;
                    if (diffTime < 0.3f)
                        ++pointerEvent.clickCount;
                    else
                        pointerEvent.clickCount = 1;

                    pointerEvent.clickTime = time;
                }
                else
                {
                    pointerEvent.clickCount = 1;
                }

                pointerEvent.pointerPress = newPressed;
                pointerEvent.rawPointerPress = currentOverGo;

                pointerEvent.clickTime = time;

                // Save the drag handler as well
                pointerEvent.pointerDrag = ExecuteEvents.GetEventHandler<IDragHandler>(currentOverGo);

                if (pointerEvent.pointerDrag != null)
                    ExecuteEvents.Execute(pointerEvent.pointerDrag, pointerEvent, ExecuteEvents.initializePotentialDrag);
            }

            // PointerUp notification
            if (released)
            {
                // Debug.Log("Executing pressup on: " + pointer.pointerPress);
                ExecuteEvents.Execute(pointerEvent.pointerPress, pointerEvent, ExecuteEvents.pointerUpHandler);

                // Debug.Log("KeyCode: " + pointer.eventData.keyCode);

                // see if we mouse up on the same element that we clicked on...
                var pointerUpHandler = ExecuteEvents.GetEventHandler<IPointerClickHandler>(currentOverGo);

                // PointerClick and Drop events
                if (pointerEvent.pointerPress == pointerUpHandler && pointerEvent.eligibleForClick)
                {
                    ExecuteEvents.Execute(pointerEvent.pointerPress, pointerEvent, ExecuteEvents.pointerClickHandler);
                }
                else if (pointerEvent.pointerDrag != null && pointerEvent.dragging)
                {
                    ExecuteEvents.ExecuteHierarchy(currentOverGo, pointerEvent, ExecuteEvents.dropHandler);
                }

                pointerEvent.eligibleForClick = false;
                pointerEvent.pointerPress = null;
                pointerEvent.rawPointerPress = null;

                if (pointerEvent.pointerDrag != null && pointerEvent.dragging)
                    ExecuteEvents.Execute(pointerEvent.pointerDrag, pointerEvent, ExecuteEvents.endDragHandler);

                pointerEvent.dragging = false;
                pointerEvent.pointerDrag = null;

                if (pointerEvent.pointerDrag != null)
                    ExecuteEvents.Execute(pointerEvent.pointerDrag, pointerEvent, ExecuteEvents.endDragHandler);

                pointerEvent.pointerDrag = null;

                // send exit events as we need to simulate this on touch up on touch device
                ExecuteEvents.ExecuteHierarchy(pointerEvent.pointerEnter, pointerEvent, ExecuteEvents.pointerExitHandler);
                pointerEvent.pointerEnter = null;
            }
        }