cfcf6660fc
The usability study mode has been broken. bug: 10251399 Change-Id: Iaa301241f102f412fa073f0d8b897a4c8b265a9c
137 lines
4.3 KiB
Java
137 lines
4.3 KiB
Java
/*
|
|
* Copyright (C) 2013 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.latin.utils;
|
|
|
|
import android.inputmethodservice.InputMethodService;
|
|
|
|
import com.android.inputmethod.annotations.UsedForTesting;
|
|
import com.android.inputmethod.latin.LatinImeLogger;
|
|
import com.android.inputmethod.latin.settings.Settings;
|
|
|
|
public final class UserLogRingCharBuffer {
|
|
public /* for test */ static final int BUFSIZE = 20;
|
|
public /* for test */ int mLength = 0;
|
|
|
|
private static UserLogRingCharBuffer sUserLogRingCharBuffer = new UserLogRingCharBuffer();
|
|
private static final char PLACEHOLDER_DELIMITER_CHAR = '\uFFFC';
|
|
private static final int INVALID_COORDINATE = -2;
|
|
private boolean mEnabled = false;
|
|
private int mEnd = 0;
|
|
private char[] mCharBuf = new char[BUFSIZE];
|
|
private int[] mXBuf = new int[BUFSIZE];
|
|
private int[] mYBuf = new int[BUFSIZE];
|
|
|
|
private UserLogRingCharBuffer() {
|
|
// Intentional empty constructor for singleton.
|
|
}
|
|
|
|
@UsedForTesting
|
|
public static UserLogRingCharBuffer getInstance() {
|
|
return sUserLogRingCharBuffer;
|
|
}
|
|
|
|
public static UserLogRingCharBuffer init(final InputMethodService context,
|
|
final boolean enabled, final boolean usabilityStudy) {
|
|
if (!(enabled || usabilityStudy)) {
|
|
return null;
|
|
}
|
|
sUserLogRingCharBuffer.mEnabled = true;
|
|
UsabilityStudyLogUtils.getInstance().init(context);
|
|
return sUserLogRingCharBuffer;
|
|
}
|
|
|
|
private static int normalize(final int in) {
|
|
int ret = in % BUFSIZE;
|
|
return ret < 0 ? ret + BUFSIZE : ret;
|
|
}
|
|
|
|
// TODO: accept code points
|
|
@UsedForTesting
|
|
public void push(final char c, final int x, final int y) {
|
|
if (!mEnabled) {
|
|
return;
|
|
}
|
|
if (LatinImeLogger.sUsabilityStudy) {
|
|
UsabilityStudyLogUtils.getInstance().writeChar(c, x, y);
|
|
}
|
|
mCharBuf[mEnd] = c;
|
|
mXBuf[mEnd] = x;
|
|
mYBuf[mEnd] = y;
|
|
mEnd = normalize(mEnd + 1);
|
|
if (mLength < BUFSIZE) {
|
|
++mLength;
|
|
}
|
|
}
|
|
|
|
public char pop() {
|
|
if (mLength < 1) {
|
|
return PLACEHOLDER_DELIMITER_CHAR;
|
|
}
|
|
mEnd = normalize(mEnd - 1);
|
|
--mLength;
|
|
return mCharBuf[mEnd];
|
|
}
|
|
|
|
public char getBackwardNthChar(final int n) {
|
|
if (mLength <= n || n < 0) {
|
|
return PLACEHOLDER_DELIMITER_CHAR;
|
|
}
|
|
return mCharBuf[normalize(mEnd - n - 1)];
|
|
}
|
|
|
|
public int getPreviousX(final char c, final int back) {
|
|
final int index = normalize(mEnd - 2 - back);
|
|
if (mLength <= back
|
|
|| Character.toLowerCase(c) != Character.toLowerCase(mCharBuf[index])) {
|
|
return INVALID_COORDINATE;
|
|
}
|
|
return mXBuf[index];
|
|
}
|
|
|
|
public int getPreviousY(final char c, final int back) {
|
|
int index = normalize(mEnd - 2 - back);
|
|
if (mLength <= back
|
|
|| Character.toLowerCase(c) != Character.toLowerCase(mCharBuf[index])) {
|
|
return INVALID_COORDINATE;
|
|
}
|
|
return mYBuf[index];
|
|
}
|
|
|
|
public String getLastWord(final int ignoreCharCount) {
|
|
final StringBuilder sb = new StringBuilder();
|
|
int i = ignoreCharCount;
|
|
for (; i < mLength; ++i) {
|
|
final char c = mCharBuf[normalize(mEnd - 1 - i)];
|
|
if (!Settings.getInstance().isWordSeparator(c)) {
|
|
break;
|
|
}
|
|
}
|
|
for (; i < mLength; ++i) {
|
|
char c = mCharBuf[normalize(mEnd - 1 - i)];
|
|
if (!Settings.getInstance().isWordSeparator(c)) {
|
|
sb.append(c);
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
return sb.reverse().toString();
|
|
}
|
|
|
|
public void reset() {
|
|
mLength = 0;
|
|
}
|
|
}
|