[Rlog48c] Replay historical motion data

Change-Id: Ib398ea61ff048b1a4ac3b7f7b4a772e173a7b294

java/src/com/android/inputmethod/research/MotionEventReader.java

@@ -19,6 +19,8 @@ package com.android.inputmethod.research;
 import android.util.JsonReader;
 import android.util.Log;
 import android.view.MotionEvent;
+import android.view.MotionEvent.PointerCoords;
+import android.view.MotionEvent.PointerProperties;
 
 import com.android.inputmethod.latin.define.ProductionFlag;
 
@@ -33,6 +35,14 @@ 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;
+    // Assumes that MotionEvent.ACTION_MASK does not have all bits set.`
+    private static final int UNINITIALIZED_ACTION = ~MotionEvent.ACTION_MASK;
+    // No legitimate int is negative
+    private static final int UNINITIALIZED_INT = -1;
+    // No legitimate long is negative
+    private static final long UNINITIALIZED_LONG = -1L;
+    // No legitimate float is negative
+    private static final float UNINITIALIZED_FLOAT = -1.0f;
 
     public ReplayData readMotionEventData(final File file) {
         final ReplayData replayData = new ReplayData();
@@ -55,19 +65,82 @@ public class MotionEventReader {
 
     static class ReplayData {
         final ArrayList<Integer> mActions = new ArrayList<Integer>();
-        final ArrayList<Integer> mXCoords = new ArrayList<Integer>();
+        final ArrayList<PointerProperties[]> mPointerPropertiesArrays
-        final ArrayList<Integer> mYCoords = new ArrayList<Integer>();
+                = new ArrayList<PointerProperties[]>();
+        final ArrayList<PointerCoords[]> mPointerCoordsArrays = new ArrayList<PointerCoords[]>();
         final ArrayList<Long> mTimes = new ArrayList<Long>();
     }
 
-    private void readLogStatement(final JsonReader jsonReader, final ReplayData replayData)
+    /**
-            throws IOException {
+     * Read motion data from a logStatement and store it in {@code replayData}.
+     *
+     * Two kinds of logStatements can be read.  In the first variant, the MotionEvent data is
+     * represented as attributes at the top level like so:
+     *
+     * <pre>
+     * {
+     *   "_ct": 1359590400000,
+     *   "_ut": 4381933,
+     *   "_ty": "MotionEvent",
+     *   "action": "UP",
+     *   "isLoggingRelated": false,
+     *   "x": 100,
+     *   "y": 200
+     * }
+     * </pre>
+     *
+     * In the second variant, there is a separate attribute for the MotionEvent that includes
+     * historical data if present:
+     *
+     * <pre>
+     * {
+     *   "_ct": 135959040000,
+     *   "_ut": 4382702,
+     *   "_ty": "MotionEvent",
+     *   "action": "MOVE",
+     *   "isLoggingRelated": false,
+     *   "motionEvent": {
+     *     "pointerIds": [
+     *       0
+     *     ],
+     *     "xyt": [
+     *       {
+     *         "t": 4382551,
+     *         "d": [
+     *           {
+     *             "x": 141.25,
+     *             "y": 151.8485107421875,
+     *             "toma": 101.82337188720703,
+     *             "tomi": 101.82337188720703,
+     *             "o": 0.0
+     *           }
+     *         ]
+     *       },
+     *       {
+     *         "t": 4382559,
+     *         "d": [
+     *           {
+     *             "x": 140.7266082763672,
+     *             "y": 151.8485107421875,
+     *             "toma": 101.82337188720703,
+     *             "tomi": 101.82337188720703,
+     *             "o": 0.0
+     *           }
+     *         ]
+     *       }
+     *     ]
+     *   }
+     * },
+     * </pre>
+     */
+    /* package for test */ void readLogStatement(final JsonReader jsonReader,
+            final ReplayData replayData) throws IOException {
         String logStatementType = null;
-        Integer actionType = null;
+        int actionType = UNINITIALIZED_ACTION;
-        Integer x = null;
+        int x = UNINITIALIZED_INT;
-        Integer y = null;
+        int y = UNINITIALIZED_INT;
-        Long time = null;
+        long time = UNINITIALIZED_LONG;
-        boolean loggingRelated = false;
+        boolean isLoggingRelated = false;
 
         jsonReader.beginObject();
         while (jsonReader.hasNext()) {
@@ -90,7 +163,18 @@ public class MotionEventReader {
                     actionType = MotionEvent.ACTION_MOVE;
                 }
             } else if (key.equals("loggingRelated")) {
-                loggingRelated = jsonReader.nextBoolean();
+                isLoggingRelated = jsonReader.nextBoolean();
+            } else if (logStatementType != null && logStatementType.equals("MotionEvent")
+                    && key.equals("motionEvent")) {
+                if (actionType == UNINITIALIZED_ACTION) {
+                    Log.e(TAG, "no actionType assigned in MotionEvent json");
+                }
+                // Second variant of LogStatement.
+                if (isLoggingRelated) {
+                    jsonReader.skipValue();
+                } else {
+                    readEmbeddedMotionEvent(jsonReader, replayData, actionType);
+                }
             } else {
                 if (DEBUG) {
                     Log.w(TAG, "Unknown JSON key in LogStatement: " + key);
@@ -100,14 +184,149 @@ public class MotionEventReader {
         }
         jsonReader.endObject();
 
-        if (logStatementType != null && time != null && x != null && y != null && actionType != null
+        if (logStatementType != null && time != UNINITIALIZED_LONG && x != UNINITIALIZED_INT
-                && logStatementType.equals("MotionEvent")
+                && y != UNINITIALIZED_INT && actionType != UNINITIALIZED_ACTION
-                && !loggingRelated) {
+                && logStatementType.equals("MotionEvent") && !isLoggingRelated) {
-            replayData.mActions.add(actionType);
+            // First variant of LogStatement.
-            replayData.mXCoords.add(x);
+            final PointerProperties pointerProperties = new PointerProperties();
-            replayData.mYCoords.add(y);
+            pointerProperties.id = 0;
-            replayData.mTimes.add(time);
+            pointerProperties.toolType = MotionEvent.TOOL_TYPE_UNKNOWN;
+            final PointerProperties[] pointerPropertiesArray = {
+                pointerProperties
+            };
+            final PointerCoords pointerCoords = new PointerCoords();
+            pointerCoords.x = x;
+            pointerCoords.y = y;
+            pointerCoords.pressure = 1.0f;
+            pointerCoords.size = 1.0f;
+            final PointerCoords[] pointerCoordsArray = {
+                pointerCoords
+            };
+            addMotionEventData(replayData, actionType, time, pointerPropertiesArray,
+                    pointerCoordsArray);
         }
     }
 
+    private void readEmbeddedMotionEvent(final JsonReader jsonReader, final ReplayData replayData,
+            final int actionType) throws IOException {
+        jsonReader.beginObject();
+        PointerProperties[] pointerPropertiesArray = null;
+        while (jsonReader.hasNext()) {  // pointerIds/xyt
+            final String name = jsonReader.nextName();
+            if (name.equals("pointerIds")) {
+                pointerPropertiesArray = readPointerProperties(jsonReader);
+            } else if (name.equals("xyt")) {
+                readPointerData(jsonReader, replayData, actionType, pointerPropertiesArray);
+            }
+        }
+        jsonReader.endObject();
+    }
+
+    private PointerProperties[] readPointerProperties(final JsonReader jsonReader)
+            throws IOException {
+        final ArrayList<PointerProperties> pointerPropertiesArrayList =
+                new ArrayList<PointerProperties>();
+        jsonReader.beginArray();
+        while (jsonReader.hasNext()) {
+            final PointerProperties pointerProperties = new PointerProperties();
+            pointerProperties.id = jsonReader.nextInt();
+            pointerProperties.toolType = MotionEvent.TOOL_TYPE_UNKNOWN;
+            pointerPropertiesArrayList.add(pointerProperties);
+        }
+        jsonReader.endArray();
+        return pointerPropertiesArrayList.toArray(
+                new PointerProperties[pointerPropertiesArrayList.size()]);
+    }
+
+    private void readPointerData(final JsonReader jsonReader, final ReplayData replayData,
+            final int actionType, final PointerProperties[] pointerPropertiesArray)
+            throws IOException {
+        if (pointerPropertiesArray == null) {
+            Log.e(TAG, "PointerIDs must be given before xyt data in json for MotionEvent");
+            jsonReader.skipValue();
+            return;
+        }
+        long time = UNINITIALIZED_LONG;
+        jsonReader.beginArray();
+        while (jsonReader.hasNext()) {  // Array of historical data
+            jsonReader.beginObject();
+            final ArrayList<PointerCoords> pointerCoordsArrayList = new ArrayList<PointerCoords>();
+            while (jsonReader.hasNext()) {  // Time/data object
+                final String name = jsonReader.nextName();
+                if (name.equals("t")) {
+                    time = jsonReader.nextLong();
+                } else if (name.equals("d")) {
+                    jsonReader.beginArray();
+                    while (jsonReader.hasNext()) {  // array of data per pointer
+                        final PointerCoords pointerCoords = readPointerCoords(jsonReader);
+                        if (pointerCoords != null) {
+                            pointerCoordsArrayList.add(pointerCoords);
+                        }
+                    }
+                    jsonReader.endArray();
+                } else {
+                    jsonReader.skipValue();
+                }
+            }
+            jsonReader.endObject();
+            // Data was recorded as historical events, but must be split apart into
+            // separate MotionEvents for replaying
+            if (time != UNINITIALIZED_LONG) {
+                addMotionEventData(replayData, actionType, time, pointerPropertiesArray,
+                        pointerCoordsArrayList.toArray(
+                                new PointerCoords[pointerCoordsArrayList.size()]));
+            } else {
+                Log.e(TAG, "Time not assigned in json for MotionEvent");
+            }
+        }
+        jsonReader.endArray();
+    }
+
+    private PointerCoords readPointerCoords(final JsonReader jsonReader) throws IOException {
+        jsonReader.beginObject();
+        float x = UNINITIALIZED_FLOAT;
+        float y = UNINITIALIZED_FLOAT;
+        while (jsonReader.hasNext()) {  // x,y
+            final String name = jsonReader.nextName();
+            if (name.equals("x")) {
+                x = (float) jsonReader.nextDouble();
+            } else if (name.equals("y")) {
+                y = (float) jsonReader.nextDouble();
+            } else {
+                jsonReader.skipValue();
+            }
+        }
+        jsonReader.endObject();
+
+        if (Float.compare(x, UNINITIALIZED_FLOAT) == 0
+                || Float.compare(y, UNINITIALIZED_FLOAT) == 0) {
+            Log.w(TAG, "missing x or y value in MotionEvent json");
+            return null;
+        }
+        final PointerCoords pointerCoords = new PointerCoords();
+        pointerCoords.x = x;
+        pointerCoords.y = y;
+        pointerCoords.pressure = 1.0f;
+        pointerCoords.size = 1.0f;
+        return pointerCoords;
+    }
+
+    /**
+     * Tests that {@code x} is uninitialized.
+     *
+     * Assumes that {@code x} will never be given a valid value less than 0, and that
+     * UNINITIALIZED_FLOAT is less than 0.0f.
+     */
+    private boolean isUninitializedFloat(final float x) {
+        return x < 0.0f;
+    }
+
+    private void addMotionEventData(final ReplayData replayData, final int actionType,
+            final long time, final PointerProperties[] pointerProperties,
+            final PointerCoords[] pointerCoords) {
+        replayData.mActions.add(actionType);
+        replayData.mTimes.add(time);
+        replayData.mPointerPropertiesArrays.add(pointerProperties);
+        replayData.mPointerCoordsArrays.add(pointerCoords);
+    }
 }

java/src/com/android/inputmethod/research/Replayer.java

@@ -22,6 +22,8 @@ import android.os.Message;
 import android.os.SystemClock;
 import android.util.Log;
 import android.view.MotionEvent;
+import android.view.MotionEvent.PointerCoords;
+import android.view.MotionEvent.PointerProperties;
 
 import com.android.inputmethod.keyboard.KeyboardSwitcher;
 import com.android.inputmethod.keyboard.MainKeyboardView;
@@ -62,7 +64,6 @@ public class Replayer {
         if (mIsReplaying) {
             return;
         }
-
         mIsReplaying = true;
         final int numActions = replayData.mActions.size();
         if (DEBUG) {
@@ -95,25 +96,36 @@ public class Replayer {
                 case MSG_MOTION_EVENT:
                     final int index = msg.arg1;
                     final int action = replayData.mActions.get(index);
-                    final int x = replayData.mXCoords.get(index);
+                    final PointerProperties[] pointerPropertiesArray =
-                    final int y = replayData.mYCoords.get(index);
+                            replayData.mPointerPropertiesArrays.get(index);
+                    final PointerCoords[] pointerCoordsArray =
+                            replayData.mPointerCoordsArrays.get(index);
                     final long origTime = replayData.mTimes.get(index);
                     if (action == MotionEvent.ACTION_DOWN) {
                         mOrigDownTime = origTime;
                     }
 
                     final MotionEvent me = MotionEvent.obtain(mOrigDownTime + timeAdjustment,
-                            origTime + timeAdjustment, action, x, y, 0);
+                            origTime + timeAdjustment, action,
+                            pointerPropertiesArray.length, pointerPropertiesArray,
+                            pointerCoordsArray, 0, 0, 1.0f, 1.0f, 0, 0, 0, 0);
                     mainKeyboardView.processMotionEvent(me);
                     me.recycle();
                     break;
                 case MSG_DONE:
                     mIsReplaying = false;
+                    ResearchLogger.getInstance().requestIndicatorRedraw();
                     break;
                 }
             }
         };
 
+        handler.post(new Runnable() {
+            @Override
+            public void run() {
+                ResearchLogger.getInstance().requestIndicatorRedraw();
+            }
+        });
         for (int i = 0; i < numActions; i++) {
             final Message msg = Message.obtain(handler, MSG_MOTION_EVENT, i, 0);
             final long msgTime = replayData.mTimes.get(i) + timeAdjustment;

tests/src/com/android/inputmethod/research/MotionEventReaderTests.java

@@ -0,0 +1,169 @@
+/*
+ * 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.test.AndroidTestCase;
+import android.util.JsonReader;
+
+import com.android.inputmethod.research.MotionEventReader.ReplayData;
+
+import java.io.IOException;
+import java.io.StringReader;
+
+public class MotionEventReaderTests extends AndroidTestCase {
+    private MotionEventReader mMotionEventReader = new MotionEventReader();
+    private ReplayData mReplayData;
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        mReplayData = new ReplayData();
+    }
+
+    private JsonReader jsonReaderForString(final String s) {
+        return new JsonReader(new StringReader(s));
+    }
+
+    public void testTopLevelDataVariant() {
+        final JsonReader jsonReader = jsonReaderForString(
+                "{"
+                + "\"_ct\": 1359590400000,"
+                + "\"_ut\": 4381933,"
+                + "\"_ty\": \"MotionEvent\","
+                + "\"action\": \"UP\","
+                + "\"isLoggingRelated\": false,"
+                + "\"x\": 100.0,"
+                + "\"y\": 200.0"
+                + "}"
+                );
+        try {
+            mMotionEventReader.readLogStatement(jsonReader, mReplayData);
+        } catch (IOException e) {
+            e.printStackTrace();
+            fail("IOException thrown");
+        }
+        assertEquals("x set correctly", (int) mReplayData.mPointerCoordsArrays.get(0)[0].x, 100);
+        assertEquals("y set correctly", (int) mReplayData.mPointerCoordsArrays.get(0)[0].y, 200);
+        assertEquals("only one pointer", mReplayData.mPointerCoordsArrays.get(0).length, 1);
+        assertEquals("only one MotionEvent", mReplayData.mPointerCoordsArrays.size(), 1);
+    }
+
+    public void testNestedDataVariant() {
+        final JsonReader jsonReader = jsonReaderForString(
+                "{"
+                + "  \"_ct\": 135959040000,"
+                + "  \"_ut\": 4382702,"
+                + "  \"_ty\": \"MotionEvent\","
+                + "  \"action\": \"MOVE\","
+                + "  \"isLoggingRelated\": false,"
+                + "  \"motionEvent\": {"
+                + "    \"pointerIds\": ["
+                + "      0"
+                + "    ],"
+                + "    \"xyt\": ["
+                + "      {"
+                + "        \"t\": 4382551,"
+                + "        \"d\": ["
+                + "          {"
+                + "            \"x\": 100.0,"
+                + "            \"y\": 200.0,"
+                + "            \"toma\": 999.0,"
+                + "            \"tomi\": 999.0,"
+                + "            \"o\": 0.0"
+                + "          }"
+                + "        ]"
+                + "      },"
+                + "      {"
+                + "        \"t\": 4382559,"
+                + "        \"d\": ["
+                + "          {"
+                + "            \"x\": 300.0,"
+                + "            \"y\": 400.0,"
+                + "            \"toma\": 999.0,"
+                + "            \"tomi\": 999.0,"
+                + "            \"o\": 0.0"
+                + "          }"
+                + "        ]"
+                + "      }"
+                + "    ]"
+                + "  }"
+                + "}"
+                );
+        try {
+            mMotionEventReader.readLogStatement(jsonReader, mReplayData);
+        } catch (IOException e) {
+            e.printStackTrace();
+            fail("IOException thrown");
+        }
+        assertEquals("x1 set correctly", (int) mReplayData.mPointerCoordsArrays.get(0)[0].x, 100);
+        assertEquals("y1 set correctly", (int) mReplayData.mPointerCoordsArrays.get(0)[0].y, 200);
+        assertEquals("x2 set correctly", (int) mReplayData.mPointerCoordsArrays.get(1)[0].x, 300);
+        assertEquals("y2 set correctly", (int) mReplayData.mPointerCoordsArrays.get(1)[0].y, 400);
+        assertEquals("only one pointer", mReplayData.mPointerCoordsArrays.get(0).length, 1);
+        assertEquals("two MotionEvents", mReplayData.mPointerCoordsArrays.size(), 2);
+    }
+
+    public void testNestedDataVariantMultiPointer() {
+        final JsonReader jsonReader = jsonReaderForString(
+                "{"
+                + "  \"_ct\": 135959040000,"
+                + "  \"_ut\": 4382702,"
+                + "  \"_ty\": \"MotionEvent\","
+                + "  \"action\": \"MOVE\","
+                + "  \"isLoggingRelated\": false,"
+                + "  \"motionEvent\": {"
+                + "    \"pointerIds\": ["
+                + "      1"
+                + "    ],"
+                + "    \"xyt\": ["
+                + "      {"
+                + "        \"t\": 4382551,"
+                + "        \"d\": ["
+                + "          {"
+                + "            \"x\": 100.0,"
+                + "            \"y\": 200.0,"
+                + "            \"toma\": 999.0,"
+                + "            \"tomi\": 999.0,"
+                + "            \"o\": 0.0"
+                + "          },"
+                + "          {"
+                + "            \"x\": 300.0,"
+                + "            \"y\": 400.0,"
+                + "            \"toma\": 999.0,"
+                + "            \"tomi\": 999.0,"
+                + "            \"o\": 0.0"
+                + "          }"
+                + "        ]"
+                + "      }"
+                + "    ]"
+                + "  }"
+                + "}"
+                );
+        try {
+            mMotionEventReader.readLogStatement(jsonReader, mReplayData);
+        } catch (IOException e) {
+            e.printStackTrace();
+            fail("IOException thrown");
+        }
+        assertEquals("x1 set correctly", (int) mReplayData.mPointerCoordsArrays.get(0)[0].x, 100);
+        assertEquals("y1 set correctly", (int) mReplayData.mPointerCoordsArrays.get(0)[0].y, 200);
+        assertEquals("x2 set correctly", (int) mReplayData.mPointerCoordsArrays.get(0)[1].x, 300);
+        assertEquals("y2 set correctly", (int) mReplayData.mPointerCoordsArrays.get(0)[1].y, 400);
+        assertEquals("two pointers", mReplayData.mPointerCoordsArrays.get(0).length, 2);
+        assertEquals("one MotionEvent", mReplayData.mPointerCoordsArrays.size(), 1);
+    }
+}