LatinIME/java/src/com/android/inputmethod/keyboard/internal/ModifierKeyState.java

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/*
* 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.android.inputmethod.keyboard.internal;
import android.util.Log;
import com.android.inputmethod.keyboard.KeyboardSwitcher;
public class ModifierKeyState {
protected static final String TAG = "ModifierKeyState";
protected static final boolean DEBUG = KeyboardSwitcher.DEBUG_STATE;
protected static final int RELEASING = 0;
protected static final int PRESSING = 1;
protected static final int MOMENTARY = 2;
protected final String mName;
protected int mState = RELEASING;
public ModifierKeyState(String name) {
mName = name;
}
public void onPress() {
final int oldState = mState;
mState = PRESSING;
if (DEBUG)
Log.d(TAG, mName + ".onPress: " + toString(oldState) + " > " + this);
}
public void onRelease() {
final int oldState = mState;
mState = RELEASING;
if (DEBUG)
Log.d(TAG, mName + ".onRelease: " + toString(oldState) + " > " + this);
}
public void onOtherKeyPressed() {
final int oldState = mState;
if (oldState == PRESSING)
mState = MOMENTARY;
if (DEBUG)
Log.d(TAG, mName + ".onOtherKeyPressed: " + toString(oldState) + " > " + this);
}
public boolean isPressing() {
return mState == PRESSING;
}
public boolean isReleasing() {
return mState == RELEASING;
}
public boolean isMomentary() {
return mState == MOMENTARY;
}
@Override
public String toString() {
return toString(mState);
}
protected String toString(int state) {
switch (state) {
case RELEASING: return "RELEASING";
case PRESSING: return "PRESSING";
case MOMENTARY: return "MOMENTARY";
default: return "UNKNOWN";
}
}
}