Merge "Move overview component logic from OverviewCommandHelper" into ub-launcher3-master
diff --git a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
index 9bbe57a..da4a3de 100644
--- a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
+++ b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
@@ -15,17 +15,11 @@
  */
 package com.android.quickstep;
 
-import static android.content.Intent.ACTION_PACKAGE_ADDED;
-import static android.content.Intent.ACTION_PACKAGE_CHANGED;
-import static android.content.Intent.ACTION_PACKAGE_REMOVED;
-
 import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
 import static com.android.launcher3.anim.Interpolators.TOUCH_RESPONSE_INTERPOLATOR;
 import static com.android.quickstep.TouchConsumer.INTERACTION_NORMAL;
 import static com.android.systemui.shared.system.ActivityManagerWrapper
         .CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
-import static com.android.systemui.shared.system.PackageManagerWrapper
-        .ACTION_PREFERRED_ACTIVITY_CHANGED;
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_CLOSING;
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_OPENING;
 
@@ -33,15 +27,9 @@
 import android.animation.AnimatorSet;
 import android.animation.ValueAnimator;
 import android.annotation.TargetApi;
-import android.content.BroadcastReceiver;
-import android.content.ComponentName;
 import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.content.pm.ResolveInfo;
 import android.graphics.Rect;
 import android.os.Build;
-import android.os.PatternMatcher;
 import android.os.SystemClock;
 import android.util.Log;
 import android.view.View;
@@ -56,21 +44,16 @@
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.quickstep.ActivityControlHelper.ActivityInitListener;
 import com.android.quickstep.ActivityControlHelper.AnimationFactory;
-import com.android.quickstep.ActivityControlHelper.FallbackActivityControllerHelper;
-import com.android.quickstep.ActivityControlHelper.LauncherActivityControllerHelper;
 import com.android.quickstep.util.ClipAnimationHelper;
-import com.android.quickstep.util.TransformedRect;
 import com.android.quickstep.util.RemoteAnimationTargetSet;
+import com.android.quickstep.util.TransformedRect;
 import com.android.quickstep.views.RecentsView;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
 import com.android.systemui.shared.system.LatencyTrackerCompat;
-import com.android.systemui.shared.system.PackageManagerWrapper;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
 import com.android.systemui.shared.system.TransactionCompat;
 
-import java.util.ArrayList;
-
 /**
  * Helper class to handle various atomic commands for switching between Overview.
  */
@@ -85,100 +68,16 @@
     private final ActivityManagerWrapper mAM;
     private final RecentsModel mRecentsModel;
     private final MainThreadExecutor mMainThreadExecutor;
-    private final ComponentName mMyHomeComponent;
-
-    private final BroadcastReceiver mUserPreferenceChangeReceiver = new BroadcastReceiver() {
-        @Override
-        public void onReceive(Context context, Intent intent) {
-            initOverviewTargets();
-        }
-    };
-    private final BroadcastReceiver mOtherHomeAppUpdateReceiver = new BroadcastReceiver() {
-        @Override
-        public void onReceive(Context context, Intent intent) {
-            initOverviewTargets();
-        }
-    };
-    private String mUpdateRegisteredPackage;
-
-    public Intent overviewIntent;
-    public ComponentName overviewComponent;
-    private ActivityControlHelper mActivityControlHelper;
+    private final OverviewComponentObserver mOverviewComponentObserver;
 
     private long mLastToggleTime;
 
-    public OverviewCommandHelper(Context context) {
+    public OverviewCommandHelper(Context context, OverviewComponentObserver observer) {
         mContext = context;
         mAM = ActivityManagerWrapper.getInstance();
         mMainThreadExecutor = new MainThreadExecutor();
         mRecentsModel = RecentsModel.INSTANCE.get(mContext);
-
-        Intent myHomeIntent = new Intent(Intent.ACTION_MAIN)
-                .addCategory(Intent.CATEGORY_HOME)
-                .setPackage(mContext.getPackageName());
-        ResolveInfo info = context.getPackageManager().resolveActivity(myHomeIntent, 0);
-        mMyHomeComponent = new ComponentName(context.getPackageName(), info.activityInfo.name);
-
-        mContext.registerReceiver(mUserPreferenceChangeReceiver,
-                new IntentFilter(ACTION_PREFERRED_ACTIVITY_CHANGED));
-        initOverviewTargets();
-    }
-
-    private void initOverviewTargets() {
-        ComponentName defaultHome = PackageManagerWrapper.getInstance()
-                .getHomeActivities(new ArrayList<>());
-
-        final String overviewIntentCategory;
-        if (defaultHome == null || mMyHomeComponent.equals(defaultHome)) {
-            // User default home is same as out home app. Use Overview integrated in Launcher.
-            overviewComponent = mMyHomeComponent;
-            mActivityControlHelper = new LauncherActivityControllerHelper();
-            overviewIntentCategory = Intent.CATEGORY_HOME;
-
-            if (mUpdateRegisteredPackage != null) {
-                // Remove any update listener as we don't care about other packages.
-                mContext.unregisterReceiver(mOtherHomeAppUpdateReceiver);
-                mUpdateRegisteredPackage = null;
-            }
-        } else {
-            // The default home app is a different launcher. Use the fallback Overview instead.
-            overviewComponent = new ComponentName(mContext, RecentsActivity.class);
-            mActivityControlHelper = new FallbackActivityControllerHelper(defaultHome);
-            overviewIntentCategory = Intent.CATEGORY_DEFAULT;
-
-            // User's default home app can change as a result of package updates of this app (such
-            // as uninstalling the app or removing the "Launcher" feature in an update).
-            // Listen for package updates of this app (and remove any previously attached
-            // package listener).
-            if (!defaultHome.getPackageName().equals(mUpdateRegisteredPackage)) {
-                if (mUpdateRegisteredPackage != null) {
-                    mContext.unregisterReceiver(mOtherHomeAppUpdateReceiver);
-                }
-
-                mUpdateRegisteredPackage = defaultHome.getPackageName();
-                IntentFilter updateReceiver = new IntentFilter(ACTION_PACKAGE_ADDED);
-                updateReceiver.addAction(ACTION_PACKAGE_CHANGED);
-                updateReceiver.addAction(ACTION_PACKAGE_REMOVED);
-                updateReceiver.addDataScheme("package");
-                updateReceiver.addDataSchemeSpecificPart(mUpdateRegisteredPackage,
-                        PatternMatcher.PATTERN_LITERAL);
-                mContext.registerReceiver(mOtherHomeAppUpdateReceiver, updateReceiver);
-            }
-        }
-
-        overviewIntent = new Intent(Intent.ACTION_MAIN)
-                .addCategory(overviewIntentCategory)
-                .setComponent(overviewComponent)
-                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-    }
-
-    public void onDestroy() {
-        mContext.unregisterReceiver(mUserPreferenceChangeReceiver);
-
-        if (mUpdateRegisteredPackage != null) {
-            mContext.unregisterReceiver(mOtherHomeAppUpdateReceiver);
-            mUpdateRegisteredPackage = null;
-        }
+        mOverviewComponentObserver = observer;
     }
 
     public void onOverviewToggle() {
@@ -200,10 +99,6 @@
                 UserEventDispatcher.newInstance(mContext).logActionTip(actionType, viewType));
     }
 
-    public ActivityControlHelper getActivityControlHelper() {
-        return mActivityControlHelper;
-    }
-
     private class ShowRecentsCommand extends RecentsActivityCommand {
 
         @Override
@@ -225,7 +120,7 @@
         private boolean mUserEventLogged;
 
         public RecentsActivityCommand() {
-            mHelper = getActivityControlHelper();
+            mHelper = mOverviewComponentObserver.getActivityControlHelper();
             mCreateTime = SystemClock.elapsedRealtime();
             mRunningTaskId = RecentsModel.getRunningTaskId();
 
@@ -242,8 +137,10 @@
                 // Start overview
                 if (!mHelper.switchToRecentsIfVisible(true)) {
                     mListener = mHelper.createActivityInitListener(this::onActivityReady);
-                    mListener.registerAndStartActivity(overviewIntent, this::createWindowAnimation,
-                            mContext, mMainThreadExecutor.getHandler(), RECENTS_LAUNCH_DURATION);
+                    mListener.registerAndStartActivity(
+                            mOverviewComponentObserver.getOverviewIntent(),
+                            this::createWindowAnimation, mContext, mMainThreadExecutor.getHandler(),
+                            RECENTS_LAUNCH_DURATION);
                 }
             }
         }
diff --git a/quickstep/src/com/android/quickstep/OverviewComponentObserver.java b/quickstep/src/com/android/quickstep/OverviewComponentObserver.java
new file mode 100644
index 0000000..e119e53
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/OverviewComponentObserver.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2019 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.quickstep;
+
+import static android.content.Intent.ACTION_PACKAGE_ADDED;
+import static android.content.Intent.ACTION_PACKAGE_CHANGED;
+import static android.content.Intent.ACTION_PACKAGE_REMOVED;
+
+import static com.android.systemui.shared.system.PackageManagerWrapper
+        .ACTION_PREFERRED_ACTIVITY_CHANGED;
+
+import android.content.BroadcastReceiver;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.ResolveInfo;
+import android.os.PatternMatcher;
+
+import com.android.quickstep.ActivityControlHelper.FallbackActivityControllerHelper;
+import com.android.quickstep.ActivityControlHelper.LauncherActivityControllerHelper;
+import com.android.systemui.shared.system.PackageManagerWrapper;
+
+import java.util.ArrayList;
+
+/**
+ * Class to keep track of the current overview component based off user preferences and app updates
+ * and provide callers the relevant classes.
+ */
+public final class OverviewComponentObserver {
+    private final BroadcastReceiver mUserPreferenceChangeReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            updateOverviewTargets();
+        }
+    };
+    private final BroadcastReceiver mOtherHomeAppUpdateReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            updateOverviewTargets();
+        }
+    };
+    private final Context mContext;
+    private final ComponentName mMyHomeComponent;
+    private String mUpdateRegisteredPackage;
+    private ActivityControlHelper mActivityControlHelper;
+    private Intent mOverviewIntent;
+
+    public OverviewComponentObserver(Context context) {
+        mContext = context;
+
+        Intent myHomeIntent = new Intent(Intent.ACTION_MAIN)
+                .addCategory(Intent.CATEGORY_HOME)
+                .setPackage(mContext.getPackageName());
+        ResolveInfo info = context.getPackageManager().resolveActivity(myHomeIntent, 0);
+        mMyHomeComponent = new ComponentName(context.getPackageName(), info.activityInfo.name);
+
+        mContext.registerReceiver(mUserPreferenceChangeReceiver,
+                new IntentFilter(ACTION_PREFERRED_ACTIVITY_CHANGED));
+        updateOverviewTargets();
+    }
+
+    /**
+     * Update overview intent and {@link ActivityControlHelper} based off the current launcher home
+     * component.
+     */
+    private void updateOverviewTargets() {
+        ComponentName defaultHome = PackageManagerWrapper.getInstance()
+                .getHomeActivities(new ArrayList<>());
+
+        final String overviewIntentCategory;
+        ComponentName overviewComponent;
+        if (defaultHome == null || mMyHomeComponent.equals(defaultHome)) {
+            // User default home is same as out home app. Use Overview integrated in Launcher.
+            overviewComponent = mMyHomeComponent;
+            mActivityControlHelper = new LauncherActivityControllerHelper();
+            overviewIntentCategory = Intent.CATEGORY_HOME;
+
+            if (mUpdateRegisteredPackage != null) {
+                // Remove any update listener as we don't care about other packages.
+                mContext.unregisterReceiver(mOtherHomeAppUpdateReceiver);
+                mUpdateRegisteredPackage = null;
+            }
+        } else {
+            // The default home app is a different launcher. Use the fallback Overview instead.
+            overviewComponent = new ComponentName(mContext, RecentsActivity.class);
+            mActivityControlHelper = new FallbackActivityControllerHelper(defaultHome);
+            overviewIntentCategory = Intent.CATEGORY_DEFAULT;
+
+            // User's default home app can change as a result of package updates of this app (such
+            // as uninstalling the app or removing the "Launcher" feature in an update).
+            // Listen for package updates of this app (and remove any previously attached
+            // package listener).
+            if (!defaultHome.getPackageName().equals(mUpdateRegisteredPackage)) {
+                if (mUpdateRegisteredPackage != null) {
+                    mContext.unregisterReceiver(mOtherHomeAppUpdateReceiver);
+                }
+
+                mUpdateRegisteredPackage = defaultHome.getPackageName();
+                IntentFilter updateReceiver = new IntentFilter(ACTION_PACKAGE_ADDED);
+                updateReceiver.addAction(ACTION_PACKAGE_CHANGED);
+                updateReceiver.addAction(ACTION_PACKAGE_REMOVED);
+                updateReceiver.addDataScheme("package");
+                updateReceiver.addDataSchemeSpecificPart(mUpdateRegisteredPackage,
+                        PatternMatcher.PATTERN_LITERAL);
+                mContext.registerReceiver(mOtherHomeAppUpdateReceiver, updateReceiver);
+            }
+        }
+
+        mOverviewIntent = new Intent(Intent.ACTION_MAIN)
+                .addCategory(overviewIntentCategory)
+                .setComponent(overviewComponent)
+                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+    }
+
+    /**
+     * Clean up any registered receivers.
+     */
+    public void onDestroy() {
+        mContext.unregisterReceiver(mUserPreferenceChangeReceiver);
+
+        if (mUpdateRegisteredPackage != null) {
+            mContext.unregisterReceiver(mOtherHomeAppUpdateReceiver);
+            mUpdateRegisteredPackage = null;
+        }
+    }
+
+    /**
+     * Get the current intent for going to the overview activity.
+     *
+     * @return the overview intent
+     */
+    public Intent getOverviewIntent() {
+        return mOverviewIntent;
+    }
+
+    /**
+     * Get the current activity control helper for managing interactions to the overview activity.
+     *
+     * @return the current activity control helper
+     */
+    public ActivityControlHelper getActivityControlHelper() {
+        return mActivityControlHelper;
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
index 8b6867f..164c9bd 100644
--- a/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -183,6 +183,7 @@
     private MainThreadExecutor mMainThreadExecutor;
     private ISystemUiProxy mISystemUiProxy;
     private OverviewCommandHelper mOverviewCommandHelper;
+    private OverviewComponentObserver mOverviewComponentObserver;
     private OverviewInteractionState mOverviewInteractionState;
     private OverviewCallbacks mOverviewCallbacks;
     private TaskOverlayFactory mTaskOverlayFactory;
@@ -198,7 +199,8 @@
         mAM = ActivityManagerWrapper.getInstance();
         mRecentsModel = RecentsModel.INSTANCE.get(this);
         mMainThreadExecutor = new MainThreadExecutor();
-        mOverviewCommandHelper = new OverviewCommandHelper(this);
+        mOverviewComponentObserver = new OverviewComponentObserver(this);
+        mOverviewCommandHelper = new OverviewCommandHelper(this, mOverviewComponentObserver);
         mMainThreadChoreographer = Choreographer.getInstance();
         mEventQueue = new MotionEventQueue(mMainThreadChoreographer, TouchConsumer.NO_OP);
         mOverviewInteractionState = OverviewInteractionState.INSTANCE.get(this);
@@ -218,7 +220,7 @@
     @Override
     public void onDestroy() {
         mInputConsumer.unregisterInputConsumer();
-        mOverviewCommandHelper.onDestroy();
+        mOverviewComponentObserver.onDestroy();
         sConnected = false;
         super.onDestroy();
     }
@@ -250,21 +252,22 @@
         if (runningTaskInfo == null && !forceToLauncher) {
             return TouchConsumer.NO_OP;
         } else if (forceToLauncher ||
-                mOverviewCommandHelper.getActivityControlHelper().isResumed()) {
+                mOverviewComponentObserver.getActivityControlHelper().isResumed()) {
             return OverviewTouchConsumer.newInstance(
-                    mOverviewCommandHelper.getActivityControlHelper(), false, mTouchInteractionLog);
+                    mOverviewComponentObserver.getActivityControlHelper(), false,
+                    mTouchInteractionLog);
         } else if (ENABLE_QUICKSTEP_LIVE_TILE.get() &&
-                mOverviewCommandHelper.getActivityControlHelper().isInLiveTileMode()) {
+                mOverviewComponentObserver.getActivityControlHelper().isInLiveTileMode()) {
             return OverviewTouchConsumer.newInstance(
-                    mOverviewCommandHelper.getActivityControlHelper(), false, mTouchInteractionLog,
-                    false /* waitForWindowAvailable */);
+                    mOverviewComponentObserver.getActivityControlHelper(), false,
+                    mTouchInteractionLog, false /* waitForWindowAvailable */);
         } else {
             if (tracker == null) {
                 tracker = VelocityTracker.obtain();
             }
             return new OtherActivityTouchConsumer(this, runningTaskInfo, mRecentsModel,
-                    mOverviewCommandHelper.overviewIntent,
-                    mOverviewCommandHelper.getActivityControlHelper(), mMainThreadExecutor,
+                    mOverviewComponentObserver.getOverviewIntent(),
+                    mOverviewComponentObserver.getActivityControlHelper(), mMainThreadExecutor,
                     mBackgroundThreadChoreographer, downHitTarget, mOverviewCallbacks,
                     mTaskOverlayFactory, mInputConsumer, tracker, mTouchInteractionLog);
         }