From 08add4f17e27a2130ae09bbb219e479987e18278 Mon Sep 17 00:00:00 2001
From: serso <se.solovyev@gmail.com>
Date: Mon, 16 Feb 2015 20:51:56 +0100
Subject: [PATCH] Fix for LongClickEraser

---
 .../android/calculator/view/LongClickEraser.java     | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/android-app/src/main/java/org/solovyev/android/calculator/view/LongClickEraser.java b/android-app/src/main/java/org/solovyev/android/calculator/view/LongClickEraser.java
index 3fa74acd..369fc25a 100644
--- a/android-app/src/main/java/org/solovyev/android/calculator/view/LongClickEraser.java
+++ b/android-app/src/main/java/org/solovyev/android/calculator/view/LongClickEraser.java
@@ -1,15 +1,19 @@
 package org.solovyev.android.calculator.view;
 
+import android.text.TextUtils;
 import android.view.GestureDetector;
 import android.view.MotionEvent;
 import android.view.View;
 
 import org.solovyev.android.calculator.Calculator;
 import org.solovyev.android.calculator.CalculatorEditor;
+import org.solovyev.android.calculator.CalculatorEditorViewState;
 import org.solovyev.android.calculator.Locator;
 
 import javax.annotation.Nonnull;
 
+import static android.text.TextUtils.isEmpty;
+
 public final class LongClickEraser implements View.OnTouchListener {
 
 	@Nonnull
@@ -51,7 +55,7 @@ public final class LongClickEraser implements View.OnTouchListener {
 				gestureDetector.onTouchEvent(event);
 				break;
 		}
-		return true;
+		return false;
 	}
 
 	private class Eraser implements Runnable {
@@ -62,7 +66,11 @@ public final class LongClickEraser implements View.OnTouchListener {
 
 		@Override
 		public void run() {
-			editor.erase();
+			final CalculatorEditorViewState state = editor.erase();
+			if (isEmpty(state.getText())) {
+				stop();
+				return;
+			}
 			delay = Math.max(50, 2 * delay / 3);
 			view.postDelayed(this, delay);
 		}