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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.inputmethod.keyboard.internal;
     18 
     19 import android.util.Log;
     20 
     21 /* package */ final class ShiftKeyState extends ModifierKeyState {
     22     private static final int PRESSING_ON_SHIFTED = 3; // both temporary shifted & shift locked
     23     private static final int IGNORING = 4;
     24 
     25     public ShiftKeyState(String name) {
     26         super(name);
     27     }
     28 
     29     @Override
     30     public void onOtherKeyPressed() {
     31         int oldState = mState;
     32         if (oldState == PRESSING) {
     33             mState = CHORDING;
     34         } else if (oldState == PRESSING_ON_SHIFTED) {
     35             mState = IGNORING;
     36         }
     37         if (DEBUG)
     38             Log.d(TAG, mName + ".onOtherKeyPressed: " + toString(oldState) + " > " + this);
     39     }
     40 
     41     public void onPressOnShifted() {
     42         int oldState = mState;
     43         mState = PRESSING_ON_SHIFTED;
     44         if (DEBUG)
     45             Log.d(TAG, mName + ".onPressOnShifted: " + toString(oldState) + " > " + this);
     46     }
     47 
     48     public boolean isPressingOnShifted() {
     49         return mState == PRESSING_ON_SHIFTED;
     50     }
     51 
     52     public boolean isIgnoring() {
     53         return mState == IGNORING;
     54     }
     55 
     56     @Override
     57     public String toString() {
     58         return toString(mState);
     59     }
     60 
     61     @Override
     62     protected String toString(int state) {
     63         switch (state) {
     64         case PRESSING_ON_SHIFTED: return "PRESSING_ON_SHIFTED";
     65         case IGNORING: return "IGNORING";
     66         default: return super.toString(state);
     67         }
     68     }
     69 }
     70