content: /*
   * Copyright (C) 2017 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.android.statsd.loadtest;
  
  import android.text.Editable;
  import android.text.TextWatcher;
  import android.util.Log;
  import android.widget.TextView;
  
  public abstract class NumericalWatcher implements TextWatcher {
  
      private static final String TAG = "loadtest.NumericalWatcher";
  
      private final TextView mTextView;
      private final int mMin;
      private final int mMax;
      private int currentValue = -1;
  
      public NumericalWatcher(TextView textView, int min, int max) {
          mTextView = textView;
          mMin = min;
          mMax = max;
      }
  
      public abstract void onNewValue(int newValue);
  
      @Override
      final public void afterTextChanged(Editable editable) {
          String s = mTextView.getText().toString();
          if (s.isEmpty()) {
            return;
          }
          int unsanitized = Integer.parseInt(s);
          int newValue = sanitize(unsanitized);
          if (currentValue != newValue || unsanitized != newValue) {
              currentValue = newValue;
              editable.clear();
              editable.append(newValue + "");
          }
          onNewValue(newValue);
      }
  
      @Override
      final public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
  
      @Override
      final public void onTextChanged(CharSequence s, int start, int before, int count) {}
  
      private int sanitize(int val) {
          if (val > mMax) {
              val = mMax;
          } else if (val < mMin) {
              val = mMin;
          }
          return val;
      }
  }
  