Cleaned up DisableableFrameLayout.

app/src/main/java/com/github/apognu/otter/activities/MainActivity.kt

@@ -78,15 +78,14 @@ class MainActivity : AppCompatActivity() {
   override fun onResume() {
     super.onResume()
 
-    (container as? DisableableFrameLayout)?.callback = object : DisableableFrameLayout.Callback {
-      override fun shouldRegisterTouch(): Boolean {
+    (container as? DisableableFrameLayout)?.setShouldRegisterTouch { _ ->
       if (now_playing.isOpened()) {
         now_playing.close()
-          return false
+
+        return@setShouldRegisterTouch false
       }
 
-        return true
-      }
+      true
     }
 
     favoritedRepository.update(this, lifecycleScope)

app/src/main/java/com/github/apognu/otter/views/DisableableFrameLayout.kt

@@ -6,21 +6,21 @@ import android.view.MotionEvent
 import android.widget.FrameLayout
 
 class  DisableableFrameLayout : FrameLayout {
-  interface Callback {
-    fun shouldRegisterTouch(): Boolean
-  }
-
-  var callback: Callback? = null
+  var callback: ((MotionEvent?) -> Boolean)? = null
 
   constructor(context: Context) : super(context)
   constructor(context: Context, attrs: AttributeSet?) : super(context, attrs)
   constructor(context: Context, attrs: AttributeSet?, style: Int) : super(context, attrs, style)
 
-  override fun onInterceptTouchEvent(ev: MotionEvent?): Boolean {
+  override fun onInterceptTouchEvent(event: MotionEvent?): Boolean {
     callback?.let {
-      return !it.shouldRegisterTouch()
+      return !it(event)
     }
 
     return false
   }
+
+  fun setShouldRegisterTouch(callback: (event: MotionEvent?) -> Boolean) {
+    this.callback = callback
+  }
 }