Moving Event dispatcher definition from LAuncher to BaseActivity so that

it can be used in other activities as well.

Bug: 34766840
Change-Id: Ie4b723483792bee93fb75e63146ebea7dfeebeda

res/values/config.xml

@@ -72,16 +72,15 @@
          filter the activities shown in the launcher. Can be empty. -->
     <string name="app_filter_class" translatable="false"></string>
 
-    <!-- List of package names that com.android.launcher3.action.LAUNCH
-     should be targeting. Can be empty. -->
-    <array name="launch_broadcast_targets" translatable="false"></array>
-
     <!-- Name of an icon provider class. -->
     <string name="icon_provider_class" translatable="false"></string>
 
     <!-- Name of a drawable factory class. -->
     <string name="drawable_factory_class" translatable="false"></string>
 
+    <!-- Name of a user event dispatcher class. -->
+    <string name="user_event_dispatcher_class" translatable="false"></string>
+
     <!-- Package name of the default wallpaper picker. -->
     <string name="wallpaper_picker_package" translatable="false"></string>
 

src/com/android/launcher3/BaseActivity.java

@@ -21,9 +21,12 @@ import android.content.Context;
 import android.content.ContextWrapper;
 import android.view.View.AccessibilityDelegate;
 
+import com.android.launcher3.logging.UserEventDispatcher;
+
 public abstract class BaseActivity extends Activity {
 
     protected DeviceProfile mDeviceProfile;
+    protected UserEventDispatcher mUserEventDispatcher;
 
     public DeviceProfile getDeviceProfile() {
         return mDeviceProfile;
@@ -33,6 +36,13 @@ public abstract class BaseActivity extends Activity {
         return null;
     }
 
+    public final UserEventDispatcher getUserEventDispatcher() {
+        if (mUserEventDispatcher == null) {
+            mUserEventDispatcher = UserEventDispatcher.get(this);
+        }
+        return mUserEventDispatcher;
+    }
+
     public static BaseActivity fromContext(Context context) {
         if (context instanceof BaseActivity) {
             return (BaseActivity) context;

src/com/android/launcher3/Launcher.java

@@ -85,9 +85,6 @@ import com.android.launcher3.allapps.AllAppsContainerView;
 import com.android.launcher3.allapps.AllAppsTransitionController;
 import com.android.launcher3.allapps.DefaultAppSearchController;
 import com.android.launcher3.anim.AnimationLayerSet;
-import com.android.launcher3.model.ModelWriter;
-import com.android.launcher3.notification.NotificationListener;
-import com.android.launcher3.popup.PopupDataProvider;
 import com.android.launcher3.compat.AppWidgetManagerCompat;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.PinItemRequestCompat;
@@ -106,10 +103,13 @@ import com.android.launcher3.keyboard.CustomActionsPopup;
 import com.android.launcher3.keyboard.ViewGroupFocusHelper;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.logging.UserEventDispatcher;
+import com.android.launcher3.model.ModelWriter;
 import com.android.launcher3.model.PackageItemInfo;
 import com.android.launcher3.model.WidgetItem;
+import com.android.launcher3.notification.NotificationListener;
 import com.android.launcher3.pageindicators.PageIndicator;
 import com.android.launcher3.popup.PopupContainerWithArrow;
+import com.android.launcher3.popup.PopupDataProvider;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
 import com.android.launcher3.shortcuts.ShortcutKey;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
@@ -119,7 +119,6 @@ import com.android.launcher3.userevent.nano.LauncherLogProto.ControlType;
 import com.android.launcher3.util.ActivityResultInfo;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.ItemInfoMatcher;
-import com.android.launcher3.util.LogConfig;
 import com.android.launcher3.util.MultiHashMap;
 import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.util.PackageUserKey;
@@ -315,8 +314,6 @@ public class Launcher extends BaseActivity
      */
     private PendingRequestArgs mPendingRequestArgs;
 
-    private UserEventDispatcher mUserEventDispatcher;
-
     private float mLastDispatchTouchEventX = 0.0f;
 
     public ViewGroupFocusHelper mFocusHandler;
@@ -627,23 +624,6 @@ public class Launcher extends BaseActivity
         }
     }
 
-    public UserEventDispatcher getUserEventDispatcher() {
-        if (mLauncherCallbacks != null) {
-            UserEventDispatcher dispatcher = mLauncherCallbacks.getUserEventDispatcher();
-            if (dispatcher != null) {
-                return dispatcher;
-            }
-        }
-
-        // Logger object is a singleton and does not have to be coupled with the foreground
-        // activity. Since most user event logging is done on the UI, the object is retrieved
-        // from the callback for convenience.
-        if (mUserEventDispatcher == null) {
-            mUserEventDispatcher = new UserEventDispatcher();
-        }
-        return mUserEventDispatcher;
-    }
-
     public boolean isDraggingEnabled() {
         // We prevent dragging when we are loading the workspace as it is possible to pick up a view
         // that is subsequently removed from the workspace in startBinding().

src/com/android/launcher3/LauncherCallbacks.java

@@ -92,7 +92,6 @@ public interface LauncherCallbacks {
     /*
      * Extensions points for adding / replacing some other aspects of the Launcher experience.
      */
-    public UserEventDispatcher getUserEventDispatcher();
     public boolean shouldMoveToDefaultScreenOnHomeIntent();
     public boolean hasSettings();
     public AllAppsSearchBarController getAllAppsSearchBarController();

src/com/android/launcher3/logging/UserEventDispatcher.java

@@ -18,6 +18,7 @@ package com.android.launcher3.logging;
 
 import android.app.PendingIntent;
 import android.content.ComponentName;
+import android.content.Context;
 import android.content.Intent;
 import android.os.SystemClock;
 import android.util.Log;
@@ -26,6 +27,7 @@ import android.view.ViewParent;
 
 import com.android.launcher3.DropTarget;
 import com.android.launcher3.ItemInfo;
+import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.config.ProviderConfig;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
@@ -61,6 +63,19 @@ public class UserEventDispatcher {
     private static final boolean IS_VERBOSE =
             ProviderConfig.IS_DOGFOOD_BUILD && Utilities.isPropertyEnabled(LogConfig.USEREVENT);
 
+    private static UserEventDispatcher sInstance;
+    private static final Object LOCK = new Object();
+
+    public static UserEventDispatcher get(Context context) {
+        synchronized (LOCK) {
+            if (sInstance == null) {
+                sInstance = Utilities.getOverrideObject(UserEventDispatcher.class,
+                        context.getApplicationContext(), R.string.user_event_dispatcher_class);
+            }
+            return sInstance;
+        }
+    }
+
     /**
      * Implemented by containers to provide a container source for a given child.
      */

src/com/android/launcher3/testing/LauncherExtension.java

@@ -179,9 +179,6 @@ public class LauncherExtension extends Launcher {
             addToCustomContentPage(customContent, mCustomContentCallbacks, "");
         }
 
-        @Override
-        public UserEventDispatcher getUserEventDispatcher() { return null; }
-
         @Override
         public View getQsbBar() {
             return null;