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

132 lines
4.1 KiB
Java
Raw Normal View History

/*
* 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;
public final class AlphabetShiftState {
private static final String TAG = AlphabetShiftState.class.getSimpleName();
private static final boolean DEBUG = false;
private static final int UNSHIFTED = 0;
private static final int MANUAL_SHIFTED = 1;
private static final int MANUAL_SHIFTED_FROM_AUTO = 2;
private static final int AUTOMATIC_SHIFTED = 3;
private static final int SHIFT_LOCKED = 4;
private static final int SHIFT_LOCK_SHIFTED = 5;
private int mState = UNSHIFTED;
public void setShifted(boolean newShiftState) {
final int oldState = mState;
if (newShiftState) {
switch (oldState) {
case UNSHIFTED:
mState = MANUAL_SHIFTED;
break;
case AUTOMATIC_SHIFTED:
mState = MANUAL_SHIFTED_FROM_AUTO;
break;
case SHIFT_LOCKED:
mState = SHIFT_LOCK_SHIFTED;
break;
}
} else {
switch (oldState) {
case MANUAL_SHIFTED:
case MANUAL_SHIFTED_FROM_AUTO:
case AUTOMATIC_SHIFTED:
mState = UNSHIFTED;
break;
case SHIFT_LOCK_SHIFTED:
mState = SHIFT_LOCKED;
break;
}
}
if (DEBUG)
Log.d(TAG, "setShifted(" + newShiftState + "): " + toString(oldState) + " > " + this);
}
public void setShiftLocked(boolean newShiftLockState) {
final int oldState = mState;
if (newShiftLockState) {
switch (oldState) {
case UNSHIFTED:
case MANUAL_SHIFTED:
case MANUAL_SHIFTED_FROM_AUTO:
case AUTOMATIC_SHIFTED:
mState = SHIFT_LOCKED;
break;
}
} else {
mState = UNSHIFTED;
}
if (DEBUG)
Log.d(TAG, "setShiftLocked(" + newShiftLockState + "): " + toString(oldState)
+ " > " + this);
}
public void setAutomaticShifted() {
final int oldState = mState;
mState = AUTOMATIC_SHIFTED;
if (DEBUG)
Log.d(TAG, "setAutomaticShifted: " + toString(oldState) + " > " + this);
}
public boolean isShiftedOrShiftLocked() {
return mState != UNSHIFTED;
}
public boolean isShiftLocked() {
return mState == SHIFT_LOCKED || mState == SHIFT_LOCK_SHIFTED;
}
public boolean isShiftLockShifted() {
return mState == SHIFT_LOCK_SHIFTED;
}
public boolean isAutomaticShifted() {
return mState == AUTOMATIC_SHIFTED;
}
public boolean isManualShifted() {
return mState == MANUAL_SHIFTED || mState == MANUAL_SHIFTED_FROM_AUTO
|| mState == SHIFT_LOCK_SHIFTED;
}
public boolean isManualShiftedFromAutomaticShifted() {
return mState == MANUAL_SHIFTED_FROM_AUTO;
}
@Override
public String toString() {
return toString(mState);
}
private static String toString(int state) {
switch (state) {
case UNSHIFTED: return "UNSHIFTED";
case MANUAL_SHIFTED: return "MANUAL_SHIFTED";
case MANUAL_SHIFTED_FROM_AUTO: return "MANUAL_SHIFTED_FROM_AUTO";
case AUTOMATIC_SHIFTED: return "AUTOMATIC_SHIFTED";
case SHIFT_LOCKED: return "SHIFT_LOCKED";
case SHIFT_LOCK_SHIFTED: return "SHIFT_LOCK_SHIFTED";
default: return "UNKNOWN";
}
}
}