Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 3380534a authored by Daniel Sandler's avatar Daniel Sandler
Browse files

Collecting some data on notification panel gestures. 

Look for it in /sdcard/statusbar_gestures.dat, in "JSON
lines" format: one list of gestures per line; each gesture
is itself a list of objects representing motion events and
tags (annotations).

Exploded example:

  [ // list of gestures
    [ // this starts a gesture
      {"type":"motion",
       "time":1347697,  // in SystemClock.uptimeMillis() base,
                        // like MotionEvents
       "action":"down", // down, up, move, cancel, else numeric
       "x":277.61,
       "y":1.00
      },
      {"type":"tag",
       "time":1347701,
       "tag":"tracking", // "tracking" or "fling"
       "info":"collapsed" // extra stuff
      },
      ... // more events
    ],
    ... // more gestures
  ]
  // newline
  [ // another list of gestures
    ...
  ]
  ...

Change-Id: Ifacbf03749c879cd82fb899289fb79a4bdd4fc3b
parent 0e848d4e

packages/SystemUI/src/com/android/systemui/statusbar/GestureRecorder.java

0 → 100755
+254 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2012 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.systemui.statusbar;



import java.io.BufferedWriter;

import java.io.FileDescriptor;

import java.io.FileWriter;

import java.io.IOException;

import java.io.PrintWriter;

import java.util.HashSet;

import java.util.LinkedList;



import android.os.Handler;

import android.os.Message;

import android.os.SystemClock;

import android.util.Slog;

import android.view.MotionEvent;



/**

 * Convenience class for capturing gestures for later analysis.

 */

public class GestureRecorder {

    public static final boolean DEBUG = true; // for now

    public static final String TAG = GestureRecorder.class.getSimpleName();



    public class Gesture {

        public abstract class Record {

            long time;

            public abstract String toJson();

        }

        public class MotionEventRecord extends Record {

            public MotionEvent event;

            public MotionEventRecord(long when, MotionEvent event) {

                this.time = when;

                this.event = event.copy();

            }

            String actionName(int action) {

                switch (action) {

                    case MotionEvent.ACTION_DOWN:

                        return "down";

                    case MotionEvent.ACTION_UP:

                        return "up";

                    case MotionEvent.ACTION_MOVE:

                        return "move";

                    case MotionEvent.ACTION_CANCEL:

                        return "cancel";

                    default:

                        return String.valueOf(action);

                }

            }

            public String toJson() {

                return String.format("{\"type\":\"motion\", \"time\":%d, \"action\":\"%s\", \"x\":%.2f, \"y\":%.2f}",

                        this.time,

                        actionName(this.event.getAction()),

                        this.event.getRawX(),

                        this.event.getRawY()

                        );

            }

        }

        public class TagRecord extends Record {

            public String tag, info;

            public TagRecord(long when, String tag, String info) {

                this.time = when;

                this.tag = tag;

                this.info = info;

            }

            public String toJson() {

                return String.format("{\"type\":\"tag\", \"time\":%d, \"tag\":\"%s\", \"info\":\"%s\"}",

                        this.time,

                        this.tag,

                        this.info

                        );

            }

        }

        private LinkedList<Record> mRecords = new LinkedList<Record>();

        private HashSet<String> mTags = new HashSet<String>();

        long mDownTime = -1;

        boolean mComplete = false;



        public void add(MotionEvent ev) {

            mRecords.add(new MotionEventRecord(ev.getEventTime(), ev));

            if (mDownTime < 0) {

                mDownTime = ev.getDownTime();

            } else {

                if (mDownTime != ev.getDownTime()) {

                    // TODO: remove

                    throw new RuntimeException("Assertion failure in GestureRecorder: event downTime ("

                            +ev.getDownTime()+") does not match gesture downTime ("+mDownTime+")");

                }

            }

            switch (ev.getActionMasked()) {

                case MotionEvent.ACTION_UP:

                case MotionEvent.ACTION_CANCEL:

                    mComplete = true;

            }

        }

        public void tag(long when, String tag, String info) {

            mRecords.add(new TagRecord(when, tag, info));

            mTags.add(tag);

        }

        public boolean isComplete() {

            return mComplete;

        }

        public String toJson() {

            StringBuilder sb = new StringBuilder();

            boolean first = true;

            sb.append("[");

            for (Record r : mRecords) {

                if (!first) sb.append(", ");

                first = false;

                sb.append(r.toJson());

            }

            sb.append("]");

            return sb.toString();

        }

    }



    // -=-=-=-=-=-=-=-=-=-=-=-



    static final long SAVE_DELAY = 5000; // ms

    static final int SAVE_MESSAGE = 6351;



    private LinkedList<Gesture> mGestures;

    private Gesture mCurrentGesture;

    private int mLastSaveLen = -1;

    private String mLogfile;



    private Handler mHandler = new Handler() {

        @Override

        public void handleMessage(Message msg) {

            if (msg.what == SAVE_MESSAGE) {

                save();

            }

        }

    };



    public GestureRecorder(String filename) {

        mLogfile = filename;

        mGestures = new LinkedList<Gesture>();

        mCurrentGesture = null;

    }



    public void add(MotionEvent ev) {

        synchronized (mGestures) {

            if (mCurrentGesture == null || mCurrentGesture.isComplete()) {

                mCurrentGesture = new Gesture();

                mGestures.add(mCurrentGesture);

            }

            mCurrentGesture.add(ev);

        }

        saveLater();

    }



    public void tag(long when, String tag, String info) {

        synchronized (mGestures) {

            if (mCurrentGesture == null) {

                mCurrentGesture = new Gesture();

                mGestures.add(mCurrentGesture);

            }

            mCurrentGesture.tag(when, tag, info);

        }

        saveLater();

    }



    public void tag(long when, String tag) {

        tag(when, tag, null);

    }



    public void tag(String tag) {

        tag(SystemClock.uptimeMillis(), tag, null);

    }



    public void tag(String tag, String info) {

        tag(SystemClock.uptimeMillis(), tag, info);

    }



    /**

     * Generates a JSON string capturing all completed gestures.

     * Not threadsafe; call with a lock.

     */

    public String toJsonLocked() {

        StringBuilder sb = new StringBuilder();

        boolean first = true;

        sb.append("[");

        int count = 0;

        for (Gesture g : mGestures) {

            if (!g.isComplete()) continue;

            if (!first) sb.append("," );

            first = false;

            sb.append(g.toJson());

            count++;

        }

        mLastSaveLen = count;

        sb.append("]");

        return sb.toString();

    }



    public String toJson() {

        String s;

        synchronized (mGestures) {

            s = toJsonLocked();

        }

        return s;

    }



    public void saveLater() {

        mHandler.removeMessages(SAVE_MESSAGE);

        mHandler.sendEmptyMessageDelayed(SAVE_MESSAGE, SAVE_DELAY);

    }



    public void save() {

        synchronized (mGestures) {

            try {

                BufferedWriter w = new BufferedWriter(new FileWriter(mLogfile, /*append=*/ true));

                w.append(toJsonLocked() + "\n");

                w.close();

                mGestures.clear();

                // If we have a pending gesture, push it back

                if (!mCurrentGesture.isComplete()) {

                    mGestures.add(mCurrentGesture);

                }

                if (DEBUG) {

                    Slog.v(TAG, String.format("Wrote %d complete gestures to %s", mLastSaveLen, mLogfile));

                }

            } catch (IOException e) {

                Slog.e(TAG, String.format("Couldn't write gestures to %s", mLogfile), e);

                mLastSaveLen = -1;

            }

        }

    }



    public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {

        save();

        if (mLastSaveLen >= 0) {

            pw.println(String.valueOf(mLastSaveLen) + " gestures written to " + mLogfile);

        } else {

            pw.println("error writing gestures");

        }

    }

}

packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

+12 −0
Original line number Diff line number Diff line
@@ -79,6 +79,7 @@ import com.android.systemui.UniverseBackground; 
import com.android.systemui.recent.RecentTasksLoader;

import com.android.systemui.statusbar.BaseStatusBar;

import com.android.systemui.statusbar.CommandQueue;

import com.android.systemui.statusbar.GestureRecorder;

import com.android.systemui.statusbar.NotificationData;

import com.android.systemui.statusbar.NotificationData.Entry;

import com.android.systemui.statusbar.RotationToggle;
@@ -242,6 +243,9 @@ public class PhoneStatusBar extends BaseStatusBar { 


    DisplayMetrics mDisplayMetrics = new DisplayMetrics();



    // XXX: gesture research

    private GestureRecorder mGestureRec = new GestureRecorder("/sdcard/statusbar_gestures.dat");



    private int mNavigationIconHints = 0;

    private final Animator.AnimatorListener mMakeIconsInvisible = new AnimatorListenerAdapter() {

        @Override
@@ -1570,6 +1574,8 @@ public class PhoneStatusBar extends BaseStatusBar { 
            }

        }



        mGestureRec.add(event);



        if ((mDisabled & StatusBarManager.DISABLE_EXPAND) != 0) {

            return false;

        }
@@ -1604,6 +1610,7 @@ public class PhoneStatusBar extends BaseStatusBar { 
                if (x >= edgeBorder && x < mDisplayMetrics.widthPixels - edgeBorder) {

                    prepareTracking(y, !mExpanded);// opening if we're not already fully visible

                    trackMovement(event);

                    mGestureRec.tag("tracking", mExpanded ? "expanded" : "collapsed");

                }

            }

        } else if (mTracking) {
@@ -1654,6 +1661,8 @@ public class PhoneStatusBar extends BaseStatusBar { 
                    mFlingY = y;

                }

                mFlingVelocity = vel;

                mGestureRec.tag("fling " + ((mFlingVelocity > 0) ? "open" : "closed"),

                                "v=" + mFlingVelocity);

                mHandler.post(mPerformFling);

            }
@@ -1938,6 +1947,9 @@ public class PhoneStatusBar extends BaseStatusBar { 
            }

        }



        pw.print("  status bar gestures: ");

        mGestureRec.dump(fd, pw, args);



        mNetworkController.dump(fd, pw, args);

    }