--- /dev/null
+package com.android.launcher3.userevent;
+
+import com.android.launcher3.ShortcutInfo;
+import com.android.launcher3.LauncherSettings;
+import com.android.launcher3.Stats;
+import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.userevent.nano.LauncherLogProto;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
+import com.android.launcher3.userevent.nano.LauncherLogProto.LauncherEvent;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.util.Log;
+
+import java.util.Locale;
+
+/**
+ * Creates {@LauncherLogProto} nano protobuf object that can be used for user event
+ * metrics analysis.
+ */
+public class Logger {
+
+ private static final String TAG = "UserEventLogger";
+ private static final boolean DEBUG = false;
+
+ private long mActionDurationMillis;
+ private long mElapsedContainerMillis;
+ private long mElapsedSessionMillis;
+
+ private Context mContext;
+
+ public Logger(Context context) {
+ mContext = context;
+ }
+
+ public void logAppLaunch(String provider, ShortcutInfo shortcut, Bundle bundle) {
+ LauncherEvent event = new LauncherEvent();
+ event.action = new Action();
+ event.action.type = Action.TOUCH;
+ event.action.touch = Action.TAP;
+
+ event.srcTarget = new Target();
+ event.srcTarget.type = Target.ITEM;
+ event.srcTarget.itemType = LauncherLogProto.APP_ICON;
+ // TODO: package hash name should be different per device.
+ event.srcTarget.packageNameHash = provider.hashCode();
+
+ event.srcTarget.parent = new Target();
+ String subContainer = bundle.getString(Stats.SOURCE_EXTRA_SUB_CONTAINER);
+
+ if (shortcut != null) {
+ event.srcTarget.parent.containerType = getContainerType(shortcut);
+ event.srcTarget.pageIndex = (int) shortcut.screenId;
+ event.srcTarget.gridX = shortcut.cellX;
+ event.srcTarget.gridX = shortcut.cellY;
+ }
+ if (subContainer != null) {
+ event.srcTarget.parent.type = Target.CONTAINER;
+ if (subContainer.equals(Stats.SUB_CONTAINER_FOLDER)) {
+ event.srcTarget.parent.containerType = LauncherLogProto.FOLDER;
+ } else if (subContainer.equals(Stats.SUB_CONTAINER_ALL_APPS_A_Z)) {
+ event.srcTarget.parent.containerType = LauncherLogProto.ALLAPPS;
+ } else if (subContainer.equals(Stats.CONTAINER_HOTSEAT)) {
+ event.srcTarget.parent.containerType = LauncherLogProto.HOTSEAT;
+ } else if (subContainer.equals(Stats.SUB_CONTAINER_ALL_APPS_PREDICTION)) {
+ event.srcTarget.parent.containerType = LauncherLogProto.PREDICTION;
+ }
+
+ if (DEBUG) {
+ Log.d(TAG, String.format("parent bundle: %s %s %s %s",
+ bundle.getString(Stats.SOURCE_EXTRA_CONTAINER),
+ bundle.getString(Stats.SOURCE_EXTRA_CONTAINER_PAGE),
+ bundle.getString(Stats.SOURCE_EXTRA_SUB_CONTAINER),
+ bundle.getString(Stats.SOURCE_EXTRA_SUB_CONTAINER_PAGE)));
+ }
+ }
+
+
+ // Assign timeToAction
+ event.elapsedContainerMillis = System.currentTimeMillis() - mElapsedContainerMillis;
+ event.elapsedSessionMillis = System.currentTimeMillis() - mElapsedSessionMillis;
+
+ // Debug
+ processLauncherEvent(event);
+ }
+
+ public void resetElapsedContainerMillis() {
+ mElapsedContainerMillis = System.currentTimeMillis();
+ }
+
+ public void resetElapsedSessionMillis() {
+ mElapsedSessionMillis = System.currentTimeMillis();
+ }
+
+ //
+ // Debugging helper methods.
+ // toString() cannot be overriden inside auto generated {@link LauncherLogProto}.
+ // Note: switch statement cannot be replaced with reflection as proguard strips the constants
+
+ private static void processLauncherEvent(LauncherEvent ev) {
+ if (DEBUG) {
+ if (ev.action.touch == Action.TAP && ev.srcTarget.itemType == LauncherLogProto.APP_ICON) {
+ Log.d(TAG, String.format(Locale.US, "action:%s target:%s\n\telapsed container %d ms session %d ms",
+ getActionStr(ev.action),
+ getTargetStr(ev.srcTarget),
+ ev.elapsedContainerMillis,
+ ev.elapsedSessionMillis));
+ }
+ }
+ }
+
+ private static int getContainerType(ShortcutInfo shortcut) {
+ switch ((int) shortcut.container) {
+ case LauncherSettings.Favorites.CONTAINER_DESKTOP: return LauncherLogProto.WORKSPACE;
+ case LauncherSettings.Favorites.CONTAINER_HOTSEAT: return LauncherLogProto.HOTSEAT;
+ default:
+ return (int) shortcut.container;
+ }
+ }
+
+ private static String getActionStr(Action action) {
+ switch(action.touch) {
+ case Action.TAP: return "TAP";
+ case Action.LONGPRESS: return "LONGPRESS";
+ case Action.DRAGDROP: return "DRAGDROP";
+ case Action.PINCH: return "PINCH";
+ default: return "UNKNOWN";
+ }
+ }
+
+ private static String getTargetStr(Target t) {
+ String typeStr;
+ switch (t.type) {
+ case LauncherLogProto.Target.ITEM:
+ return getItemStr(t);
+ case LauncherLogProto.Target.CONTROL:
+ return getControlStr(t);
+ case LauncherLogProto.Target.CONTAINER:
+ return getContainerStr(t);
+ default:
+ return "UNKNOWN TARGET TYPE";
+ }
+ }
+
+ private static String getItemStr(Target t) {
+ String typeStr = "";
+ switch(t.itemType){
+ case LauncherLogProto.APP_ICON: typeStr = "ICON"; break;
+ case LauncherLogProto.SHORTCUT: typeStr = "SHORTCUT"; break;
+ case LauncherLogProto.WIDGET: typeStr = "WIDGET"; break;
+ default: typeStr = "UNKNOWN";
+ }
+
+ return typeStr + " " + t.packageNameHash + " grid=(" + t.gridX + "," + t.gridY + ") "
+ + getContainerStr(t.parent);
+ }
+
+ private static String getControlStr(Target t) {
+ switch(t.controlType) {
+ case LauncherLogProto.ALL_APPS_BUTTON: return "ALL_APPS_BUTTON";
+ case LauncherLogProto.WIDGETS_BUTTON: return "WIDGETS_BUTTON";
+ case LauncherLogProto.WALLPAPER_BUTTON: return "WALLPAPER_BUTTON";
+ case LauncherLogProto.SETTINGS_BUTTON: return "SETTINGS_BUTTON";
+ case LauncherLogProto.REMOVE_TARGET: return "REMOVE_TARGET";
+ case LauncherLogProto.UNINSTALL_TARGET: return "UNINSTALL_TARGET";
+ case LauncherLogProto.APPINFO_TARGET: return "APPINFO_TARGET";
+ case LauncherLogProto.RESIZE_HANDLE: return "RESIZE_HANDLE";
+ case LauncherLogProto.FAST_SCROLL_HANDLE: return "FAST_SCROLL_HANDLE";
+ default: return "UNKNOWN";
+ }
+ }
+
+ private static String getContainerStr(Target t) {
+ String str;
+ Log.d(TAG, "t.containerType" + t.containerType);
+ switch (t.containerType) {
+ case LauncherLogProto.WORKSPACE:
+ str = "WORKSPACE";
+ break;
+ case LauncherLogProto.HOTSEAT:
+ str = "HOTSEAT";
+ break;
+ case LauncherLogProto.FOLDER:
+ str = "FOLDER";
+ break;
+ case LauncherLogProto.ALLAPPS:
+ str = "ALLAPPS";
+ break;
+ case LauncherLogProto.WIDGETS:
+ str = "WIDGETS";
+ break;
+ case LauncherLogProto.OVERVIEW:
+ str = "OVERVIEW";
+ break;
+ case LauncherLogProto.PREDICTION:
+ str = "PREDICTION";
+ break;
+ case LauncherLogProto.SEARCHRESULT:
+ str = "SEARCHRESULT";
+ break;
+ default:
+ str = "UNKNOWN";
+ }
+ return str + " id=" + t.pageIndex;
+ }
+}
+