bug: fix merge conflicts and refactor

 package dev.steenbakker.mobile_scanner
 
 import android.app.Activity
-import android.content.pm.PackageManager
 import android.graphics.Rect
 import android.net.Uri
 import android.os.Handler
 import android.os.Looper
-import android.util.Log
 import android.view.Surface
 import androidx.camera.core.*
 import androidx.camera.lifecycle.ProcessCameraProvider
@@ -217,10 +215,6 @@ class MobileScanner(
                 torchStateCallback(state)
             }
 
-//            val analysisSize = analysis.resolutionInfo?.resolution ?: Size(0, 0)
-//            val previewSize = preview!!.resolutionInfo?.resolution ?: Size(0, 0)
-//            Log.i("LOG", "Analyzer: $analysisSize")
-//            Log.i("LOG", "Preview: $previewSize")
 
             // Enable torch if provided
             camera!!.cameraControl.enableTorch(torch)

@@ -15,7 +15,7 @@ import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
 import io.flutter.view.TextureRegistry
 import java.io.File
 
-class MethodCallHandlerImpl(
+class MobileScannerHandler(
     private val activity: Activity,
     private val barcodeHandler: BarcodeHandler,
     binaryMessenger: BinaryMessenger,
@@ -38,12 +38,14 @@ class MethodCallHandlerImpl(
 
     private var analyzerResult: MethodChannel.Result? = null
 
-    private val callback: MobileScannerCallback = { barcodes: List<Map<String, Any?>>, image: ByteArray? ->
+    private val callback: MobileScannerCallback = { barcodes: List<Map<String, Any?>>, image: ByteArray?, width: Int?, height: Int? ->
         if (image != null) {
             barcodeHandler.publishEvent(mapOf(
                 "name" to "barcode",
                 "data" to barcodes,
-                "image" to image
+                "image" to image,
+                "width" to width!!.toDouble(),
+                "height" to height!!.toDouble()
             ))
         } else {
             barcodeHandler.publishEvent(mapOf(
@@ -112,6 +114,8 @@ class MethodCallHandlerImpl(
             "torch" -> toggleTorch(call, result)
             "stop" -> stop(result)
             "analyzeImage" -> analyzeImage(call, result)
+            "setScale" -> setScale(call, result)
+            "updateScanWindow" -> updateScanWindow(call)
             else -> result.notImplemented()
         }
     }
@@ -213,4 +217,19 @@ class MethodCallHandlerImpl(
             result.error("MobileScanner", "Called toggleTorch() while stopped!", null)
         }
     }
+
+    private fun setScale(call: MethodCall, result: MethodChannel.Result) {
+        try {
+            mobileScanner!!.setScale(call.arguments as Double)
+            result.success(null)
+        } catch (e: ZoomWhenStopped) {
+            result.error("MobileScanner", "Called setScale() while stopped!", null)
+        } catch (e: ZoomNotInRange) {
+            result.error("MobileScanner", "Scale should be within 0 and 1", null)
+        }
+    }
+
+    private fun updateScanWindow(call: MethodCall) {
+        mobileScanner!!.scanWindow = call.argument<List<Float>>("rect")
+    }
 }
\ No newline at end of file

@@ -86,40 +86,3 @@ class MobileScannerPermissions {
     }
 }
 
-/**
- * This class handles incoming camera permission results.
- */
-@SuppressWarnings("deprecation")
-private class MobileScannerPermissionsListener(
-    private val resultCallback: MobileScannerPermissions.ResultCallback,
-): RequestPermissionsResultListener {
-    // There's no way to unregister permission listeners in the v1 embedding, so we'll be called
-    // duplicate times in cases where the user denies and then grants a permission. Keep track of if
-    // we've responded before and bail out of handling the callback manually if this is a repeat
-    // call.
-    private var alreadyCalled: Boolean = false
-
-    override fun onRequestPermissionsResult(
-        requestCode: Int,
-        permissions: Array<out String>,
-        grantResults: IntArray
-    ): Boolean {
-        if (alreadyCalled || requestCode != MobileScannerPermissions.REQUEST_CODE) {
-            return false
-        }
-
-        alreadyCalled = true
-
-        // grantResults could be empty if the permissions request with the user is interrupted
-        // https://developer.android.com/reference/android/app/Activity#onRequestPermissionsResult(int,%20java.lang.String[],%20int[])
-        if (grantResults.isEmpty() || grantResults[0] != PackageManager.PERMISSION_GRANTED) {
-            resultCallback.onResult(
-                MobileScannerPermissions.CAMERA_ACCESS_DENIED,
-                MobileScannerPermissions.CAMERA_ACCESS_DENIED_MESSAGE)
-        } else {
-            resultCallback.onResult(null, null)
-        }
-
-        return true
-    }
-}
\ No newline at end of file

+package dev.steenbakker.mobile_scanner
+
+import android.content.pm.PackageManager
+import io.flutter.plugin.common.PluginRegistry
+
+/**
+ * This class handles incoming camera permission results.
+ */
+internal class MobileScannerPermissionsListener(
+    private val resultCallback: MobileScannerPermissions.ResultCallback,
+): PluginRegistry.RequestPermissionsResultListener {
+    // There's no way to unregister permission listeners in the v1 embedding, so we'll be called
+    // duplicate times in cases where the user denies and then grants a permission. Keep track of if
+    // we've responded before and bail out of handling the callback manually if this is a repeat
+    // call.
+    private var alreadyCalled: Boolean = false
+
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<out String>,
+        grantResults: IntArray
+    ): Boolean {
+        if (alreadyCalled || requestCode != MobileScannerPermissions.REQUEST_CODE) {
+            return false
+        }
+
+        alreadyCalled = true
+
+        // grantResults could be empty if the permissions request with the user is interrupted
+        // https://developer.android.com/reference/android/app/Activity#onRequestPermissionsResult(int,%20java.lang.String[],%20int[])
+        if (grantResults.isEmpty() || grantResults[0] != PackageManager.PERMISSION_GRANTED) {
+            resultCallback.onResult(
+                MobileScannerPermissions.CAMERA_ACCESS_DENIED,
+                MobileScannerPermissions.CAMERA_ACCESS_DENIED_MESSAGE)
+        } else {
+            resultCallback.onResult(null, null)
+        }
+
+        return true
+    }
+}
\ No newline at end of file

@@ -8,73 +8,7 @@ import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
 class MobileScannerPlugin : FlutterPlugin, ActivityAware {
     private var activityPluginBinding: ActivityPluginBinding? = null
     private var flutterPluginBinding: FlutterPlugin.FlutterPluginBinding? = null
-    private var methodCallHandler: MethodCallHandlerImpl? = null
-    private var handler: MobileScanner? = null
-    private var method: MethodChannel? = null
-
-    private lateinit var barcodeHandler: BarcodeHandler
-
-    private var analyzerResult: MethodChannel.Result? = null
-
-    private val callback: MobileScannerCallback = { barcodes: List<Map<String, Any?>>, image: ByteArray?, width: Int?, height: Int? ->
-        if (image != null) {
-            barcodeHandler.publishEvent(mapOf(
-                "name" to "barcode",
-                "data" to barcodes,
-                "image" to image,
-                "width" to width!!.toDouble(),
-                "height" to height!!.toDouble()
-            ))
-        } else {
-            barcodeHandler.publishEvent(mapOf(
-                "name" to "barcode",
-                "data" to barcodes
-            ))
-        }
-    }
-
-    private val analyzerCallback: AnalyzerCallback = { barcodes: List<Map<String, Any?>>?->
-        if (barcodes != null) {
-            barcodeHandler.publishEvent(mapOf(
-                "name" to "barcode",
-                "data" to barcodes
-            ))
-            analyzerResult?.success(true)
-        } else {
-            analyzerResult?.success(false)
-        }
-        analyzerResult = null
-    }
-
-    private val errorCallback: MobileScannerErrorCallback = {error: String ->
-        barcodeHandler.publishEvent(mapOf(
-            "name" to "error",
-            "data" to error,
-        ))
-    }
-
-    private val torchStateCallback: TorchStateCallback = {state: Int ->
-        barcodeHandler.publishEvent(mapOf("name" to "torchState", "data" to state))
-    }
-
-    @ExperimentalGetImage
-    override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
-        if (handler == null) {
-            result.error("MobileScanner", "Called ${call.method} before initializing.", null)
-            return
-        }
-        when (call.method) {
-            "state" -> result.success(handler!!.hasCameraPermission())
-            "request" -> handler!!.requestPermission(result)
-            "start" -> start(call, result)
-            "torch" -> toggleTorch(call, result)
-            "stop" -> stop(result)
-            "analyzeImage" -> analyzeImage(call, result)
-            "setScale" -> setScale(call, result)
-            "updateScanWindow" -> updateScanWindow(call)
-            else -> result.notImplemented()
-        }
-    }
+    private var methodCallHandler: MobileScannerHandler? = null
 
     override fun onAttachedToEngine(binding: FlutterPlugin.FlutterPluginBinding) {
         this.flutterPluginBinding = binding
@@ -87,7 +21,7 @@ class MobileScannerPlugin : FlutterPlugin, ActivityAware {
     override fun onAttachedToActivity(activityPluginBinding: ActivityPluginBinding) {
         val binaryMessenger = this.flutterPluginBinding!!.binaryMessenger
 
-        methodCallHandler = MethodCallHandlerImpl(
+        methodCallHandler = MobileScannerHandler(
             activityPluginBinding.activity,
             BarcodeHandler(binaryMessenger),
             binaryMessenger,
@@ -112,19 +46,4 @@ class MobileScannerPlugin : FlutterPlugin, ActivityAware {
     override fun onDetachedFromActivityForConfigChanges() {
         onDetachedFromActivity()
     }
-
-    private fun setScale(call: MethodCall, result: MethodChannel.Result) {
-        try {
-            handler!!.setScale(call.arguments as Double)
-            result.success(null)
-        } catch (e: ZoomWhenStopped) {
-            result.error("MobileScanner", "Called setScale() while stopped!", null)
-        } catch (e: ZoomNotInRange) {
-            result.error("MobileScanner", "Scale should be within 0 and 1", null)
-        }
-    }
-    
-    private fun updateScanWindow(call: MethodCall) {
-        handler!!.scanWindow = call.argument<List<Float>>("rect")
-    }
 }