| /* |
| * 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"; |
| } |
| } |
| } |