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/*
* 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.research;
import android.util.JsonReader;
import android.util.Log;
import android.view.MotionEvent;
import com.android.inputmethod.latin.define.ProductionFlag;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
public class MotionEventReader {
private static final String TAG = MotionEventReader.class.getSimpleName();
private static final boolean DEBUG = false && ProductionFlag.IS_EXPERIMENTAL_DEBUG;
public ReplayData readMotionEventData(final File file) {
final ReplayData replayData = new ReplayData();
try {
// Read file
final JsonReader jsonReader = new JsonReader(new BufferedReader(new InputStreamReader(
new FileInputStream(file))));
jsonReader.beginArray();
while (jsonReader.hasNext()) {
readLogStatement(jsonReader, replayData);
}
jsonReader.endArray();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return replayData;
}
static class ReplayData {
final ArrayList<Integer> mActions = new ArrayList<Integer>();
final ArrayList<Integer> mXCoords = new ArrayList<Integer>();
final ArrayList<Integer> mYCoords = new ArrayList<Integer>();
final ArrayList<Long> mTimes = new ArrayList<Long>();
}
private void readLogStatement(final JsonReader jsonReader, final ReplayData replayData)
throws IOException {
String logStatementType = null;
Integer actionType = null;
Integer x = null;
Integer y = null;
Long time = null;
boolean loggingRelated = false;
jsonReader.beginObject();
while (jsonReader.hasNext()) {
final String key = jsonReader.nextName();
if (key.equals("_ty")) {
logStatementType = jsonReader.nextString();
} else if (key.equals("_ut")) {
time = jsonReader.nextLong();
} else if (key.equals("x")) {
x = jsonReader.nextInt();
} else if (key.equals("y")) {
y = jsonReader.nextInt();
} else if (key.equals("action")) {
final String s = jsonReader.nextString();
if (s.equals("UP")) {
actionType = MotionEvent.ACTION_UP;
} else if (s.equals("DOWN")) {
actionType = MotionEvent.ACTION_DOWN;
} else if (s.equals("MOVE")) {
actionType = MotionEvent.ACTION_MOVE;
}
} else if (key.equals("loggingRelated")) {
loggingRelated = jsonReader.nextBoolean();
} else {
if (DEBUG) {
Log.w(TAG, "Unknown JSON key in LogStatement: " + key);
}
jsonReader.skipValue();
}
}
jsonReader.endObject();
if (logStatementType != null && time != null && x != null && y != null && actionType != null
&& logStatementType.equals("MainKeyboardViewProcessMotionEvent")
&& !loggingRelated) {
replayData.mActions.add(actionType);
replayData.mXCoords.add(x);
replayData.mYCoords.add(y);
replayData.mTimes.add(time);
}
}
}
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