content: /*
   * Copyright (C) 2010 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.amnesica.kryptey.inputmethod.keyboard.internal;
  
  import android.util.Log;
  
  /* package */ class ModifierKeyState {
    protected static final String TAG = ModifierKeyState.class.getSimpleName();
    protected static final boolean DEBUG = false;
  
    protected static final int RELEASING = 0;
    protected static final int PRESSING = 1;
    protected static final int CHORDING = 2;
  
    protected final String mName;
    protected int mState = RELEASING;
  
    public ModifierKeyState(String name) {
      mName = name;
    }
  
    public void onPress() {
      mState = PRESSING;
    }
  
    public void onRelease() {
      mState = RELEASING;
    }
  
    public void onOtherKeyPressed() {
      final int oldState = mState;
      if (oldState == PRESSING)
        mState = CHORDING;
      if (DEBUG)
        Log.d(TAG, mName + ".onOtherKeyPressed: " + toString(oldState) + " > " + this);
    }
  
    public boolean isPressing() {
      return mState == PRESSING;
    }
  
    public boolean isReleasing() {
      return mState == RELEASING;
    }
  
    public boolean isChording() {
      return mState == CHORDING;
    }
  
    @Override
    public String toString() {
      return toString(mState);
    }
  
    protected String toString(int state) {
      switch (state) {
        case RELEASING:
          return "RELEASING";
        case PRESSING:
          return "PRESSING";
        case CHORDING:
          return "CHORDING";
        default:
          return "UNKNOWN";
      }
    }
  }
  