fixed potential crash in mousePad widget

VoidLink/Input/OnScreenWidgetView.swift

@@ -140,6 +140,7 @@ import UIKit
     private var firstTouchMoved: Bool = false
     private var mousePointerMoved: Bool
     private var twoTouchesDetected: Bool
+    private var allSpawnedTouchesCount: Int = 0
     
     // trackball
     private var trackballVelocity: CGPoint = .zero
@@ -1236,7 +1237,7 @@ import UIKit
             self.latestTouchLocation = touchBeganLocation
         }
                 
-        let allSpawnedTouchesCount = self.getAllSpawnedTouchesCount(with: event) // this will counts all valid touches within the self widgetView, and excludes touches in other widgetViews
+        allSpawnedTouchesCount = self.getAllSpawnedTouchesCount(with: event) // this will counts all valid touches within the self widgetView, and excludes touches in other widgetViews
         if allSpawnedTouchesCount == 2 {
             self.twoTouchesDetected = true
         }
@@ -1389,7 +1390,6 @@ import UIKit
         }
     }
 
-    
     private func handleFingerUpAfterSliding(touches: Set<UITouch>) {
         for touch in touches {
             for subview in self.superview?.subviews ?? [] {
@@ -1501,10 +1501,8 @@ import UIKit
             switch self.touchPadString{
             case "MOUSEPAD":
                 DispatchQueue.global(qos: .userInteractive).async {
-                    if self.getAllSpawnedTouchesCount(with: event) == 1 {
+                    self.updateTouchLocation(touch: touches.first!)
-                        self.updateTouchLocation(touch: touches.first!)
+                    LiSendMouseMoveEvent(Int16(truncatingIfNeeded: Int(self.deltaX * 1.7 * self.sensitivityFactorX)), Int16(truncatingIfNeeded: Int(self.deltaY * 1.7 * self.sensitivityFactorY)))
-                        LiSendMouseMoveEvent(Int16(truncatingIfNeeded: Int(self.deltaX * 1.7 * self.sensitivityFactorX)), Int16(truncatingIfNeeded: Int(self.deltaY * 1.7 * self.sensitivityFactorY)))
-                    }
                 }
                 break
             case "TRACKBALL":
@@ -1567,11 +1565,11 @@ import UIKit
 
         if self.touchPadString != "MOUSEPAD" {quickDoubleTapDetected = false} //do not reset this flag here in mousePad mode
         
-        let allCapturedTouchesCount = event?.allTouches?.filter({ $0.view == self }).count // this will counts all valid touches within the self widgetView, and excludes touches in other widgetViews
+        self.allSpawnedTouchesCount = self.getAllSpawnedTouchesCount(with: event) // this will counts all valid touches within the self widgetView, and excludes touches in other widgetViews
         
         
         // deal with pure MOUSPAD first
-        if !OnScreenWidgetView.editMode && self.widgetType == WidgetTypeEnum.touchPad && self.touchPadString == "MOUSEPAD" && allCapturedTouchesCount == 1 && !twoTouchesDetected {
+        if !OnScreenWidgetView.editMode && self.widgetType == WidgetTypeEnum.touchPad && self.touchPadString == "MOUSEPAD" && allSpawnedTouchesCount == 1 && !twoTouchesDetected {
             
                 switch mouseButtonAction{
                 case .leftButtonDown:
@@ -1595,7 +1593,7 @@ import UIKit
                 }
         }
         
-        if !OnScreenWidgetView.editMode && self.widgetType == WidgetTypeEnum.touchPad && self.touchPadString == "TRACKBALL" && allCapturedTouchesCount == 1 && !twoTouchesDetected {
+        if !OnScreenWidgetView.editMode && self.widgetType == WidgetTypeEnum.touchPad && self.touchPadString == "TRACKBALL" && allSpawnedTouchesCount == 1 && !twoTouchesDetected {
             if(mousePointerMoved){
                 self.startTrackballMomentum()
                 mousePointerMoved = false //reset flag
@@ -1605,7 +1603,7 @@ import UIKit
             }
         }
         
-        if !OnScreenWidgetView.editMode && self.widgetType == WidgetTypeEnum.touchPad && self.touchPadString == "MOUSEPAD" && twoTouchesDetected && touches.count == allCapturedTouchesCount { // need to enable multi-touch first
+        if !OnScreenWidgetView.editMode && self.widgetType == WidgetTypeEnum.touchPad && self.touchPadString == "MOUSEPAD" && twoTouchesDetected && touches.count == allSpawnedTouchesCount { // need to enable multi-touch first
             // touches.count == allCapturedTouchesCount means allfingers are lifting
             if(self.mouseButtonAction == MouseButtonAction.hovering) {self.sendMouseRightButtonClickEvent()}
             twoTouchesDetected = false