Merge "Using themed icons in taskbar" into sc-v2-dev
diff --git a/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java b/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
index fd44e02..e2f198c 100644
--- a/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
@@ -173,7 +173,9 @@
     @Override
     protected void notifyGestureAnimationStartToRecents() {
         if (mRunningOverHome) {
-            mRecentsView.onGestureAnimationStartOnHome(mGestureState.getRunningTask());
+            if (SysUINavigationMode.getMode(mContext).hasGestures) {
+                mRecentsView.onGestureAnimationStartOnHome(mGestureState.getRunningTask());
+            }
         } else {
             super.notifyGestureAnimationStartToRecents();
         }
diff --git a/quickstep/src/com/android/quickstep/LauncherActivityInterface.java b/quickstep/src/com/android/quickstep/LauncherActivityInterface.java
index 5deb75e..d91d5b0 100644
--- a/quickstep/src/com/android/quickstep/LauncherActivityInterface.java
+++ b/quickstep/src/com/android/quickstep/LauncherActivityInterface.java
@@ -189,7 +189,7 @@
                 launcher != null && launcher.getStateManager().getState().overviewUi
                         ? launcher.getOverviewPanel() : null;
         if (recentsView == null || (!launcher.hasBeenResumed()
-                && recentsView.getRunningTaskId() == -1)) {
+                && recentsView.getRunningTaskViewId() == -1)) {
             // If live tile has ended, return null.
             return null;
         }
diff --git a/quickstep/src/com/android/quickstep/OverviewComponentObserver.java b/quickstep/src/com/android/quickstep/OverviewComponentObserver.java
index 0efe666..780032e 100644
--- a/quickstep/src/com/android/quickstep/OverviewComponentObserver.java
+++ b/quickstep/src/com/android/quickstep/OverviewComponentObserver.java
@@ -33,8 +33,11 @@
 import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
+import android.os.SystemClock;
+import android.util.Log;
 import android.util.SparseIntArray;
 
+import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.tracing.OverviewComponentObserverProto;
 import com.android.launcher3.tracing.TouchInteractionServiceProto;
 import com.android.launcher3.util.SimpleBroadcastReceiver;
@@ -129,6 +132,16 @@
     private void updateOverviewTargets() {
         ComponentName defaultHome = PackageManagerWrapper.getInstance()
                 .getHomeActivities(new ArrayList<>());
+        if (TestProtocol.sDebugTracing && defaultHome == null) {
+            Log.d(TestProtocol.THIRD_PARTY_LAUNCHER_NOT_SET, "getHomeActivities returned null");
+            while ((defaultHome =
+                    PackageManagerWrapper.getInstance().getHomeActivities(new ArrayList<>()))
+                    == null) {
+                SystemClock.sleep(10);
+            }
+            Log.d(TestProtocol.THIRD_PARTY_LAUNCHER_NOT_SET,
+                    "getHomeActivities returned non-null: " + defaultHome);
+        }
 
         mIsHomeDisabled = mDeviceState.isHomeDisabled();
         mIsDefaultHome = Objects.equals(mMyHomeIntent.getComponent(), defaultHome);
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index 07d221c..b5da097 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -139,7 +139,7 @@
 
         // If the opening task id is not currently visible in overview, then fall back to normal app
         // icon launch animation
-        TaskView taskView = recentsView.getTaskView(openingTaskId);
+        TaskView taskView = recentsView.getTaskViewByTaskId(openingTaskId);
         if (taskView == null || !recentsView.isTaskViewVisible(taskView)) {
             return null;
         }
diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
index 61622ee..8155244 100644
--- a/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -144,7 +144,7 @@
     private static final int SYSTEM_ACTION_ID_ALL_APPS = 14;
 
     public static final boolean ENABLE_PER_WINDOW_INPUT_ROTATION =
-            SystemProperties.getBoolean("persist.debug.per_window_input_rotation", false);
+            SystemProperties.getBoolean("persist.debug.per_window_input_rotation", true);
 
     private int mBackGestureNotificationCounter = -1;
     @Nullable
diff --git a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java
index 540a9ca..64a428f 100644
--- a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java
+++ b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java
@@ -95,7 +95,7 @@
             TaskViewSimulator taskViewSimulator) {
         super.onPrepareGestureEndAnimation(animatorSet, endTarget, taskViewSimulator);
         if (mHomeTaskInfo != null && endTarget == RECENTS && animatorSet != null) {
-            TaskView tv = getTaskView(mHomeTaskInfo.taskId);
+            TaskView tv = getTaskViewByTaskId(mHomeTaskInfo.taskId);
             if (tv != null) {
                 PendingAnimation pa = createTaskDismissAnimation(tv, true, false, 150,
                         false /* dismissingForSplitSelection*/);
@@ -117,8 +117,9 @@
     }
 
     @Override
-    public void setCurrentTask(int runningTaskId) {
-        super.setCurrentTask(runningTaskId);
+    public void setCurrentTask(int runningTaskViewId) {
+        super.setCurrentTask(runningTaskViewId);
+        int runningTaskId = getTaskIdsForRunningTaskView()[0];
         if (mHomeTaskInfo != null && mHomeTaskInfo.taskId != runningTaskId) {
             mHomeTaskInfo = null;
             setRunningTaskHidden(false);
@@ -128,7 +129,7 @@
     @Nullable
     @Override
     protected TaskView getHomeTaskView() {
-        return mHomeTaskInfo != null ? getTaskView(mHomeTaskInfo.taskId) : null;
+        return mHomeTaskInfo != null ? getTaskViewByTaskId(mHomeTaskInfo.taskId) : null;
     }
 
     @Override
@@ -148,11 +149,12 @@
         // When quick-switching on 3p-launcher, we add a "stub" tile corresponding to Launcher
         // as well. This tile is never shown as we have setCurrentTaskHidden, but allows use to
         // track the index of the next task appropriately, as if we are switching on any other app.
-        if (mHomeTaskInfo != null && mHomeTaskInfo.taskId == mRunningTaskId && !tasks.isEmpty()) {
+        int runningTaskId = getTaskIdsForRunningTaskView()[0];
+        if (mHomeTaskInfo != null && mHomeTaskInfo.taskId == runningTaskId && !tasks.isEmpty()) {
             // Check if the task list has running task
             boolean found = false;
             for (Task t : tasks) {
-                if (t.key.id == mRunningTaskId) {
+                if (t.key.id == runningTaskId) {
                     found = true;
                     break;
                 }
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index d00db2d..b077ca6 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -398,6 +398,9 @@
 
     private final InvariantDeviceProfile mIdp;
 
+    /**
+     * Getting views should be done via {@link #getTaskViewFromPool()}
+     */
     private final ViewPool<TaskView> mTaskViewPool;
 
     private final TaskOverlayFactory mTaskOverlayFactory;
@@ -441,7 +444,7 @@
             }
 
             // Remove the task immediately from the task list
-            TaskView taskView = getTaskView(taskId);
+            TaskView taskView = getTaskViewByTaskId(taskId);
             if (taskView != null) {
                 removeView(taskView);
             }
@@ -463,7 +466,7 @@
                 return;
             }
 
-            TaskView taskView = getTaskView(taskId);
+            TaskView taskView = getTaskViewByTaskId(taskId);
             if (taskView == null) {
                 return;
             }
@@ -496,10 +499,16 @@
     private int mTaskListChangeId = -1;
 
     // Only valid until the launcher state changes to NORMAL
-    protected int mRunningTaskId = -1;
+    /**
+     * ID for the current running TaskView view, unique amongst TaskView instances. ID's are set
+     * through {@link #getTaskViewFromPool()} and incremented by {@link #mTaskViewIdCount}
+     */
+    protected int mRunningTaskViewId = -1;
+    private int mTaskViewIdCount;
+    private final int[] INVALID_TASK_IDS = new int[]{-1, -1};
     protected boolean mRunningTaskTileHidden;
     private Task mTmpRunningTask;
-    protected int mFocusedTaskId = -1;
+    protected int mFocusedTaskViewId = -1;
 
     private boolean mTaskIconScaledDown = false;
     private boolean mRunningTaskShowScreenshot = false;
@@ -734,7 +743,7 @@
     @Override
     public Task onTaskThumbnailChanged(int taskId, ThumbnailData thumbnailData) {
         if (mHandleTaskStackChanges) {
-            TaskView taskView = getTaskView(taskId);
+            TaskView taskView = getTaskViewByTaskId(taskId);
             if (taskView != null) {
                 Task task = taskView.getTask();
                 taskView.getThumbnail().setThumbnail(task, thumbnailData);
@@ -764,7 +773,7 @@
      * @param refreshNow Refresh immediately if it's true.
      */
     public TaskView updateThumbnail(int taskId, ThumbnailData thumbnailData, boolean refreshNow) {
-        TaskView taskView = getTaskView(taskId);
+        TaskView taskView = getTaskViewByTaskId(taskId);
         if (taskView != null) {
             taskView.getThumbnail().setThumbnail(taskView.getTask(), thumbnailData, refreshNow);
         }
@@ -838,7 +847,8 @@
         if (child instanceof TaskView && child != mSplitHiddenTaskView
                 && child != mMovingTaskView) {
             TaskView taskView = (TaskView) child;
-            mHasVisibleTaskData.delete(taskView.getTaskId());
+            mHasVisibleTaskData.delete(taskView.getTaskIds()[0]);
+            taskView.setTaskViewId(-1);
             mTaskViewPool.recycle(taskView);
             mActionsView.updateHiddenFlags(HIDDEN_NO_TASKS, getTaskViewCount() == 0);
         }
@@ -878,7 +888,8 @@
     }
 
     public void launchSideTaskInLiveTileModeForRestartedApp(int taskId) {
-        if (mRunningTaskId != -1 && mRunningTaskId == taskId) {
+        int runningTaskViewId = getTaskViewIdFromTaskId(taskId);
+        if (mRunningTaskViewId != -1 && mRunningTaskViewId == runningTaskViewId) {
             RemoteAnimationTargets targets = getLiveTileParams().getTargetSet();
             if (targets != null && targets.findTask(taskId) != null) {
                 launchSideTaskInLiveTileMode(taskId, targets.apps, targets.wallpapers,
@@ -890,7 +901,7 @@
     public void launchSideTaskInLiveTileMode(int taskId, RemoteAnimationTargetCompat[] apps,
             RemoteAnimationTargetCompat[] wallpaper, RemoteAnimationTargetCompat[] nonApps) {
         AnimatorSet anim = new AnimatorSet();
-        TaskView taskView = getTaskView(taskId);
+        TaskView taskView = getTaskViewByTaskId(taskId);
         if (taskView == null || !isTaskViewVisible(taskView)) {
             // TODO: Refine this animation.
             SurfaceTransactionApplier surfaceApplier =
@@ -967,10 +978,11 @@
                 == getPagedOrientationHandler().getPrimaryScroll(this);
     }
 
-    public TaskView getTaskView(int taskId) {
+    public TaskView getTaskViewByTaskId(int taskId) {
         for (int i = 0; i < getTaskViewCount(); i++) {
             TaskView taskView = getTaskViewAt(i);
-            if (taskView.getTaskId() == taskId) {
+            int[] taskIds = taskView.getTaskIds();
+            if (taskIds[0] == taskId || taskIds[1] == taskId) {
                 return taskView;
             }
         }
@@ -1187,7 +1199,7 @@
         unloadVisibleTaskData(TaskView.FLAG_UPDATE_ALL);
 
         TaskView ignoreResetTaskView =
-                mIgnoreResetTaskId == -1 ? null : getTaskView(mIgnoreResetTaskId);
+                mIgnoreResetTaskId == -1 ? null : getTaskViewByTaskId(mIgnoreResetTaskId);
 
         final int requiredTaskCount = tasks.size();
         if (getTaskViewCount() != requiredTaskCount) {
@@ -1195,7 +1207,7 @@
                 removeView(mClearAllButton);
             }
             for (int i = getTaskViewCount(); i < requiredTaskCount; i++) {
-                addView(mTaskViewPool.getView());
+                addView(getTaskViewFromPool());
             }
             while (getTaskViewCount() > requiredTaskCount) {
                 removeView(getChildAt(getChildCount() - 1));
@@ -1205,6 +1217,12 @@
             }
         }
 
+        // Save running task ID if it exists before rebinding all taskViews, otherwise the task from
+        // the runningTaskView currently bound could get assigned to another TaskView
+        // TODO set these type to array and check all taskIDs? Maybe we can get away w/ only one
+        int runningTaskId = getTaskIdsForTaskViewId(mRunningTaskViewId)[0];
+        int focusedTaskId = getTaskIdsForTaskViewId(mFocusedTaskViewId)[0];
+
         // Rebind and reset all task views
         for (int i = requiredTaskCount - 1; i >= 0; i--) {
             final int pageIndex = requiredTaskCount - i - 1 + mTaskViewStartIndex;
@@ -1213,28 +1231,40 @@
             taskView.bind(task, mOrientationState);
         }
 
+        // Keep same previous focused task
+        TaskView newFocusedTaskView = getTaskViewByTaskId(focusedTaskId);
         // If the list changed, maybe the focused task doesn't exist anymore
-        if (getFocusedTaskView() == null && getTaskViewCount() > 0) {
-            mFocusedTaskId = getTaskViewAt(0).getTaskId();
+        if (newFocusedTaskView == null && getTaskViewCount() > 0) {
+            newFocusedTaskView = getTaskViewAt(0);
         }
+        mFocusedTaskViewId = newFocusedTaskView != null ?
+                newFocusedTaskView.getTaskViewId() : -1;
         updateTaskSize();
 
+        TaskView newRunningTaskView = null;
+        if (runningTaskId != -1) {
+            // Update mRunningTaskViewId to be the new TaskView that was assigned by binding
+            // the full list of tasks to taskViews
+            newRunningTaskView = getTaskViewByTaskId(runningTaskId);
+            mRunningTaskViewId = newRunningTaskView.getTaskViewId();
+        }
+
         if (mNextPage == INVALID_PAGE) {
             // Set the current page to the running task, but not if settling on new task.
-            TaskView runningTaskView = getRunningTaskView();
-            if (runningTaskView != null) {
-                setCurrentPage(indexOfChild(runningTaskView));
+            if (runningTaskId != -1) {
+                setCurrentPage(indexOfChild(newRunningTaskView));
             } else if (getTaskViewCount() > 0) {
                 setCurrentPage(indexOfChild(getTaskViewAt(0)));
             }
         } else if (currentTaskId != -1) {
-            currentTaskView = getTaskView(currentTaskId);
+            currentTaskView = getTaskViewByTaskId(currentTaskId);
             if (currentTaskView != null) {
                 setCurrentPage(indexOfChild(currentTaskView));
             }
         }
 
-        if (mIgnoreResetTaskId != -1 && getTaskView(mIgnoreResetTaskId) != ignoreResetTaskView) {
+        if (mIgnoreResetTaskId != -1 &&
+                getTaskViewByTaskId(mIgnoreResetTaskId) != ignoreResetTaskView) {
             // If the taskView mapping is changing, do not preserve the visuals. Since we are
             // mostly preserving the first task, and new taskViews are added to the end, it should
             // generally map to the same task.
@@ -1278,7 +1308,7 @@
     public void resetTaskVisuals() {
         for (int i = getTaskViewCount() - 1; i >= 0; i--) {
             TaskView taskView = getTaskViewAt(i);
-            if (mIgnoreResetTaskId != taskView.getTaskId()) {
+            if (mIgnoreResetTaskId != taskView.getTaskIds()[0]) {
                 taskView.resetViewTransforms();
                 taskView.setIconScaleAndDim(mTaskIconScaledDown ? 0 : 1);
                 taskView.setStableAlpha(mContentAlpha);
@@ -1632,7 +1662,7 @@
     private void unloadVisibleTaskData(@TaskView.TaskDataChanges int dataChanges) {
         for (int i = 0; i < mHasVisibleTaskData.size(); i++) {
             if (mHasVisibleTaskData.valueAt(i)) {
-                TaskView taskView = getTaskView(mHasVisibleTaskData.keyAt(i));
+                TaskView taskView = getTaskViewByTaskId(mHasVisibleTaskData.keyAt(i));
                 if (taskView != null) {
                     taskView.onTaskListVisibilityChanged(false /* visible */, dataChanges);
                 }
@@ -1647,7 +1677,7 @@
         // they want to updated their thumbnail state
         for (int i = 0; i < mHasVisibleTaskData.size(); i++) {
             if (mHasVisibleTaskData.valueAt(i)) {
-                TaskView taskView = getTaskView(mHasVisibleTaskData.keyAt(i));
+                TaskView taskView = getTaskViewByTaskId(mHasVisibleTaskData.keyAt(i));
                 if (taskView != null) {
                     // Poke the view again, which will trigger it to load high res if the state
                     // is enabled
@@ -1668,7 +1698,7 @@
         setCurrentTask(-1);
         mIgnoreResetTaskId = -1;
         mTaskListChangeId = -1;
-        mFocusedTaskId = getTaskViewCount() > 0 ? getTaskViewAt(0).getTaskId() : -1;
+        mFocusedTaskViewId = getTaskViewCount() > 0 ? getTaskViewAt(0).getTaskViewId() : -1;
 
         if (mRecentsAnimationController != null) {
             if (ENABLE_QUICKSTEP_LIVE_TILE.get() && mEnableDrawingLiveTile) {
@@ -1693,20 +1723,49 @@
         });
     }
 
-    public int getRunningTaskId() {
-        return mRunningTaskId;
+    public int getRunningTaskViewId() {
+        return mRunningTaskViewId;
+    }
+
+    protected int[] getTaskIdsForRunningTaskView() {
+        return getTaskIdsForTaskViewId(mRunningTaskViewId);
+    }
+
+    private int[] getTaskIdsForTaskViewId(int taskViewId) {
+        // For now 2 distinct task IDs is max for split screen
+        TaskView runningTaskView = getTaskViewFromTaskViewId(taskViewId);
+        if (runningTaskView == null) {
+            return INVALID_TASK_IDS;
+        }
+
+        return runningTaskView.getTaskIds();
     }
 
     public @Nullable TaskView getRunningTaskView() {
-        return getTaskView(mRunningTaskId);
-    }
-
-    public int getRunningTaskIndex() {
-        return getTaskIndexForId(mRunningTaskId);
+        return getTaskViewFromTaskViewId(mRunningTaskViewId);
     }
 
     public @Nullable TaskView getFocusedTaskView() {
-        return getTaskView(mFocusedTaskId);
+        return getTaskViewFromTaskViewId(mFocusedTaskViewId);
+    }
+
+    private TaskView getTaskViewFromTaskViewId(int taskViewId) {
+        if (taskViewId == -1) {
+            return null;
+        }
+
+        for (int i = 0; i < getTaskViewCount(); i++) {
+            TaskView taskView = getTaskViewAt(i);
+            if (taskView.getTaskViewId() == taskViewId) {
+                return taskView;
+            }
+        }
+        return null;
+    }
+
+    public int getRunningTaskIndex() {
+        TaskView taskView = getRunningTaskView();
+        return taskView == null ? -1 : indexOfChild(taskView);
     }
 
     protected @Nullable TaskView getHomeTaskView() {
@@ -1714,11 +1773,27 @@
     }
 
     /**
+     * Handle the edge case where Recents could increment task count very high over long
+     * period of device usage. Probably will never happen, but meh.
+     */
+    private TaskView getTaskViewFromPool() {
+        TaskView taskView = mTaskViewPool.getView();
+        taskView.setTaskViewId(mTaskViewIdCount);
+        if (mTaskViewIdCount == Integer.MAX_VALUE) {
+            mTaskViewIdCount = 0;
+        } else {
+            mTaskViewIdCount++;
+        }
+
+        return taskView;
+    }
+
+    /**
      * Get the index of the task view whose id matches {@param taskId}.
      * @return -1 if there is no task view for the task id, else the index of the task view.
      */
     public int getTaskIndexForId(int taskId) {
-        TaskView tv = getTaskView(taskId);
+        TaskView tv = getTaskViewByTaskId(taskId);
         return tv == null ? -1 : indexOfChild(tv);
     }
 
@@ -1858,7 +1933,7 @@
      * Returns true if we should add a stub taskView for the running task id
      */
     protected boolean shouldAddStubTaskView(RunningTaskInfo runningTaskInfo) {
-        return runningTaskInfo != null && getTaskView(runningTaskInfo.taskId) == null;
+        return runningTaskInfo != null && getTaskViewByTaskId(runningTaskInfo.taskId) == null;
     }
 
     /**
@@ -1868,10 +1943,12 @@
      * is called.  Also scrolls the view to this task.
      */
     public void showCurrentTask(RunningTaskInfo runningTaskInfo) {
+        int runningTaskViewId = -1;
         if (shouldAddStubTaskView(runningTaskInfo)) {
             boolean wasEmpty = getChildCount() == 0;
             // Add an empty view for now until the task plan is loaded and applied
-            final TaskView taskView = mTaskViewPool.getView();
+            final TaskView taskView = getTaskViewFromPool();
+            runningTaskViewId = taskView.getTaskViewId();
             addView(taskView, mTaskViewStartIndex);
             if (wasEmpty) {
                 addView(mClearAllButton);
@@ -1886,12 +1963,13 @@
             measure(makeMeasureSpec(getMeasuredWidth(), EXACTLY),
                     makeMeasureSpec(getMeasuredHeight(), EXACTLY));
             layout(getLeft(), getTop(), getRight(), getBottom());
+        } else if (getTaskViewByTaskId(runningTaskInfo.taskId) != null) {
+            runningTaskViewId = getTaskViewByTaskId(runningTaskInfo.taskId).getTaskViewId();
         }
 
         boolean runningTaskTileHidden = mRunningTaskTileHidden;
-        int runningTaskId = runningTaskInfo == null ? -1 : runningTaskInfo.taskId;
-        setCurrentTask(runningTaskId);
-        mFocusedTaskId = runningTaskId;
+        setCurrentTask(runningTaskViewId);
+        mFocusedTaskViewId = runningTaskViewId;
         setCurrentPage(getRunningTaskIndex());
         setRunningTaskViewShowScreenshot(false);
         setRunningTaskHidden(runningTaskTileHidden);
@@ -1905,22 +1983,27 @@
     /**
      * Sets the running task id, cleaning up the old running task if necessary.
      */
-    public void setCurrentTask(int runningTaskId) {
-        if (mRunningTaskId == runningTaskId) {
+    public void setCurrentTask(int runningTaskViewId) {
+        if (mRunningTaskViewId == runningTaskViewId) {
             return;
         }
 
-        if (mRunningTaskId != -1) {
+        if (mRunningTaskViewId != -1) {
             // Reset the state on the old running task view
             setTaskIconScaledDown(false);
             setRunningTaskViewShowScreenshot(true);
             setRunningTaskHidden(false);
         }
-        mRunningTaskId = runningTaskId;
+        mRunningTaskViewId = runningTaskViewId;
+    }
+
+    private int getTaskViewIdFromTaskId(int taskId) {
+        TaskView taskView = getTaskViewByTaskId(taskId);
+        return taskView != null ? taskView.getTaskViewId() : -1;
     }
 
     /**
-     * Hides the tile associated with {@link #mRunningTaskId}
+     * Hides the tile associated with {@link #mRunningTaskViewId}
      */
     public void setRunningTaskHidden(boolean isHidden) {
         mRunningTaskTileHidden = isHidden;
@@ -2001,7 +2084,7 @@
         float bottomAccumulatedTranslationX = 0;
 
         // Contains whether the child index is in top or bottom of grid (for non-focused task)
-        // Different from mTopRowIdSet, which contains the taskId of what task is in top row
+        // Different from mTopRowIdSet, which contains the taskViewId of what task is in top row
         IntSet topSet = new IntSet();
         IntSet bottomSet = new IntSet();
 
@@ -2053,8 +2136,8 @@
                     // calculate the distance focused task need to shift.
                     focusedTaskShift += mIsRtl ? taskWidthAndSpacing : -taskWidthAndSpacing;
                 }
-                int taskId = taskView.getTaskId();
-                boolean isTopRow = isTaskDismissal ? mTopRowIdSet.contains(taskId)
+                int taskViewId = taskView.getTaskViewId();
+                boolean isTopRow = isTaskDismissal ? mTopRowIdSet.contains(taskViewId)
                         : topRowWidth <= bottomRowWidth;
                 if (isTopRow) {
                     if (homeTaskView != null && nextFocusedTaskView == null) {
@@ -2064,7 +2147,7 @@
                         topRowWidth += taskWidthAndSpacing;
                     }
                     topSet.add(i);
-                    mTopRowIdSet.add(taskId);
+                    mTopRowIdSet.add(taskViewId);
 
                     taskView.setGridTranslationY(mTaskGridVerticalDiff);
 
@@ -2189,13 +2272,13 @@
         if (taskView1 == null || taskView2 == null) {
             return false;
         }
-        int taskId1 = taskView1.getTaskId();
-        int taskId2 = taskView2.getTaskId();
-        if (taskId1 == mFocusedTaskId || taskId2 == mFocusedTaskId) {
+        int taskViewId1 = taskView1.getTaskViewId();
+        int taskViewId2 = taskView2.getTaskViewId();
+        if (taskViewId1 == mFocusedTaskViewId || taskViewId2 == mFocusedTaskViewId) {
             return false;
         }
-        return (mTopRowIdSet.contains(taskId1) && mTopRowIdSet.contains(taskId2)) || (
-                !mTopRowIdSet.contains(taskId1) && !mTopRowIdSet.contains(taskId2));
+        return (mTopRowIdSet.contains(taskViewId1) && mTopRowIdSet.contains(taskViewId2)) || (
+                !mTopRowIdSet.contains(taskViewId1) && !mTopRowIdSet.contains(taskViewId2));
     }
 
     /**
@@ -2342,7 +2425,8 @@
         boolean showAsGrid = showAsGrid();
         int taskCount = getTaskViewCount();
         int dismissedIndex = indexOfChild(dismissedTaskView);
-        int dismissedTaskId = dismissedTaskView.getTaskId();
+        int dismissedTaskId = dismissedTaskView.getTaskIds()[0];
+        int dismissedTaskViewId = dismissedTaskView.getTaskViewId();
 
         // Grid specific properties.
         boolean isFocusedTaskDismissed = false;
@@ -2359,7 +2443,7 @@
 
         if (showAsGrid) {
             dismissedTaskWidth = dismissedTaskView.getLayoutParams().width + mPageSpacing;
-            isFocusedTaskDismissed = dismissedTaskId == mFocusedTaskId;
+            isFocusedTaskDismissed = dismissedTaskViewId == mFocusedTaskViewId;
             if (isFocusedTaskDismissed) {
                 nextFocusedTaskFromTop =
                         mTopRowIdSet.size() > 0 && mTopRowIdSet.size() >= (taskCount - 1) / 2f;
@@ -2369,7 +2453,7 @@
                     if (taskView == dismissedTaskView) {
                         continue;
                     }
-                    boolean isTopRow = mTopRowIdSet.contains(taskView.getTaskId());
+                    boolean isTopRow = mTopRowIdSet.contains(taskView.getTaskViewId());
                     if ((nextFocusedTaskFromTop && isTopRow
                             || (!nextFocusedTaskFromTop && !isTopRow))) {
                         nextFocusedTaskView = taskView;
@@ -2548,7 +2632,7 @@
                         mCurrentPageScrollDiff = primaryScroll - currentPageScroll;
                     }
                     removeViewInLayout(dismissedTaskView);
-                    mTopRowIdSet.remove(dismissedTaskId);
+                    mTopRowIdSet.remove(dismissedTaskViewId);
 
                     if (taskCount == 1) {
                         removeViewInLayout(mClearAllButton);
@@ -2556,8 +2640,8 @@
                     } else {
                         // Update focus task and its size.
                         if (finalNextFocusedTaskView != null) {
-                            mFocusedTaskId = finalNextFocusedTaskView.getTaskId();
-                            mTopRowIdSet.remove(mFocusedTaskId);
+                            mFocusedTaskViewId = finalNextFocusedTaskView.getTaskViewId();
+                            mTopRowIdSet.remove(mFocusedTaskViewId);
                             finalNextFocusedTaskView.animateIconScaleAndDimIntoView();
                         }
                         updateTaskSize(true);
@@ -2676,7 +2760,7 @@
 
     @UiThread
     private void dismissTask(int taskId) {
-        TaskView taskView = getTaskView(taskId);
+        TaskView taskView = getTaskViewByTaskId(taskId);
         if (taskView == null) {
             return;
         }
@@ -2755,9 +2839,12 @@
         }
         alpha = Utilities.boundToRange(alpha, 0, 1);
         mContentAlpha = alpha;
+        int runningTaskId = getTaskIdsForRunningTaskView()[0];
         for (int i = getTaskViewCount() - 1; i >= 0; i--) {
             TaskView child = getTaskViewAt(i);
-            if (!mRunningTaskTileHidden || child.getTaskId() != mRunningTaskId) {
+            int[] childTaskIds = child.getTaskIds();
+            if (!mRunningTaskTileHidden ||
+                    (childTaskIds[0] != runningTaskId && childTaskIds[1] != runningTaskId)) {
                 child.setStableAlpha(alpha);
             }
         }
@@ -2916,8 +3003,8 @@
         float modalOffset = ACCEL_0_75.getInterpolation(mTaskModalness);
         int count = getChildCount();
 
-        TaskView runningTask = mRunningTaskId == -1 || !mRunningTaskTileHidden
-                ? null : getTaskView(mRunningTaskId);
+        TaskView runningTask = mRunningTaskViewId == -1 || !mRunningTaskTileHidden
+                ? null : getRunningTaskView();
         int midpoint = runningTask == null ? -1 : indexOfChild(runningTask);
         int modalMidpoint = getCurrentPage();
 
@@ -3884,8 +3971,9 @@
             }
             return;
         }
-        switchToScreenshot(mRunningTaskId == -1 ? null
-                : mRecentsAnimationController.screenshotTask(mRunningTaskId), onFinishRunnable);
+        int runningTaskId = getTaskIdsForRunningTaskView()[0];
+        switchToScreenshot(mRunningTaskViewId == -1 ? null
+                : mRecentsAnimationController.screenshotTask(runningTaskId), onFinishRunnable);
     }
 
     /**
diff --git a/quickstep/src/com/android/quickstep/views/TaskView.java b/quickstep/src/com/android/quickstep/views/TaskView.java
index 5608fc7..ec08280 100644
--- a/quickstep/src/com/android/quickstep/views/TaskView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskView.java
@@ -366,6 +366,9 @@
     private float mModalness = 0;
     private float mStableAlpha = 1;
 
+    private int mTaskViewId = -1;
+    private final int[] mTaskIdContainer = new int[]{-1, -1};
+
     private boolean mShowScreenshot;
 
     // The current background requests to load the task thumbnail and icon
@@ -401,6 +404,14 @@
         setOutlineProvider(mOutlineProvider);
     }
 
+    public void setTaskViewId(int id) {
+        this.mTaskViewId = id;
+    }
+
+    public int getTaskViewId() {
+        return mTaskViewId;
+    }
+
     /**
      * Builds proto for logging
      */
@@ -506,6 +517,7 @@
     public void bind(Task task, RecentsOrientedState orientedState) {
         cancelPendingLoadTasks();
         mTask = task;
+        mTaskIdContainer[0] = mTask.key.id;
         mSnapshotView.bind(task);
         setOrientationState(orientedState);
     }
@@ -514,8 +526,12 @@
         return mTask;
     }
 
-    public int getTaskId() {
-        return mTask != null && mTask.key != null ? mTask.key.id : -1;
+    /**
+     * @return integer array of two elements to be size consistent with max number of tasks possible
+     *         index 0 will contain the taskId, index 1 will be -1 indicating a null taskID value
+     */
+    public int[] getTaskIds() {
+        return mTaskIdContainer;
     }
 
     public TaskThumbnailView getThumbnail() {
@@ -598,7 +614,8 @@
             ActivityOptionsWrapper opts =  mActivity.getActivityLaunchOptions(this, null);
             if (ActivityManagerWrapper.getInstance()
                     .startActivityFromRecents(mTask.key, opts.options)) {
-                if (ENABLE_QUICKSTEP_LIVE_TILE.get() && getRecentsView().getRunningTaskId() != -1) {
+                if (ENABLE_QUICKSTEP_LIVE_TILE.get() &&
+                        getRecentsView().getRunningTaskViewId() != -1) {
                     // Return a fresh callback in the live tile case, so that it's not accidentally
                     // triggered by QuickstepTransitionManager.AppLaunchAnimationRunner.
                     RunnableList callbackList = new RunnableList();
diff --git a/quickstep/tests/src/com/android/quickstep/AbstractQuickStepTest.java b/quickstep/tests/src/com/android/quickstep/AbstractQuickStepTest.java
index dc73a9a..ca47de3 100644
--- a/quickstep/tests/src/com/android/quickstep/AbstractQuickStepTest.java
+++ b/quickstep/tests/src/com/android/quickstep/AbstractQuickStepTest.java
@@ -82,6 +82,6 @@
 
         RecentsView recentsView = launcher.getOverviewPanel();
         return recentsView.getSizeStrategy().isInLiveTileMode()
-                && recentsView.getRunningTaskId() != -1;
+                && recentsView.getRunningTaskViewId() != -1;
     }
 }
diff --git a/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java b/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
index b36baf8..e4f5a19 100644
--- a/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
+++ b/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
@@ -99,6 +99,7 @@
         mDevice = UiDevice.getInstance(instrumentation);
         mDevice.setOrientationNatural();
         mLauncher = new LauncherInstrumentation();
+        mLauncher.enableDebugTracing();
         // b/143488140
         //mLauncher.enableCheckEventsForSuccessfulGestures();
 
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index 242e3e3..eb3f94c 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -353,7 +353,7 @@
         } else if (focus == View.FOCUS_RIGHT) {
             nextPage = currentPage + panelCount;
         } else {
-            // no neighbours to those direction
+            // no neighbours to other directions
             return new IntSet();
         }
         nextPage = validateNewPage(nextPage);
@@ -362,12 +362,7 @@
             return new IntSet();
         }
 
-        int pageCount = getPageCount();
-        IntSet neighbourIndices = new IntSet();
-        for (int page = nextPage; page < nextPage + panelCount && page < pageCount; page++) {
-            neighbourIndices.add(page);
-        }
-        return neighbourIndices;
+        return getPageIndices(nextPage);
     }
 
     /**
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 9a8b80d..83ca08d 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -325,6 +325,11 @@
             setPageSpacing(Math.max(maxInsets, maxPadding));
         }
 
+        updateWorkspaceScreensPadding();
+    }
+
+    private void updateWorkspaceScreensPadding() {
+        DeviceProfile grid = mLauncher.getDeviceProfile();
         int paddingLeftRight = grid.cellLayoutPaddingLeftRightPx;
         int paddingBottom = grid.cellLayoutBottomPaddingPx;
 
@@ -621,10 +626,6 @@
         // created CellLayout.
         CellLayout newScreen = (CellLayout) LayoutInflater.from(getContext()).inflate(
                         R.layout.workspace_screen, this, false /* attachToRoot */);
-        DeviceProfile grid = mLauncher.getDeviceProfile();
-        int paddingLeftRight = grid.cellLayoutPaddingLeftRightPx;
-        int paddingBottom = grid.cellLayoutBottomPaddingPx;
-        newScreen.setPadding(paddingLeftRight, 0, paddingLeftRight, paddingBottom);
 
         mWorkspaceScreens.put(screenId, newScreen);
         mScreenOrder.add(insertIndex, screenId);
@@ -633,6 +634,7 @@
                 mLauncher.getStateManager().getState(), newScreen, insertIndex);
 
         updatePageScrollValues();
+        updateWorkspaceScreensPadding();
         return newScreen;
     }
 
@@ -1775,7 +1777,7 @@
 
         boolean droppedOnOriginalCell = false;
 
-        int snapScreen = -1;
+        boolean snappedToNewPage = false;
         boolean resizeOnDrop = false;
         Runnable onCompleteRunnable = null;
         if (d.dragSource != this || mDragInfo == null) {
@@ -1857,11 +1859,14 @@
                 }
 
                 if (foundCell) {
-                    if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) {
-                        snapScreen = getPageIndexForScreenId(screenId);
+                    int targetScreenIndex = getPageIndexForScreenId(screenId);
+                    int snapScreen = getLeftmostVisiblePageForIndex(targetScreenIndex);
+                    // On large screen devices two pages can be shown at the same time, and snap
+                    // isn't needed if the source and target screens appear at the same time
+                    if (snapScreen != mCurrentPage && !hasMovedIntoHotseat) {
                         snapToPage(snapScreen);
+                        snappedToNewPage = true;
                     }
-
                     final ItemInfo info = (ItemInfo) cell.getTag();
                     if (hasMovedLayouts) {
                         // Reparent the view
@@ -1953,7 +1958,7 @@
                             ANIMATE_INTO_POSITION_AND_DISAPPEAR;
                     animateWidgetDrop(info, parent, d.dragView, null, animationType, cell, false);
                 } else {
-                    int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION;
+                    int duration = snappedToNewPage ? ADJACENT_SCREEN_DROP_DURATION : -1;
                     mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration,
                             this);
                 }
diff --git a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
index 9faac5b..0fb5e77 100644
--- a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
+++ b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
@@ -188,7 +188,8 @@
     private boolean itemSupportsAccessibleDrag(ItemInfo item) {
         if (item instanceof WorkspaceItemInfo) {
             // Support the action unless the item is in a context menu.
-            return item.screenId >= 0 && item.container != Favorites.CONTAINER_HOTSEAT_PREDICTION;
+            return (item.screenId >= 0 || item.screenId == Workspace.LEFT_PANEL_ID)
+                    && item.container != Favorites.CONTAINER_HOTSEAT_PREDICTION;
         }
         return (item instanceof LauncherAppWidgetInfo)
                 || (item instanceof FolderInfo);
diff --git a/src/com/android/launcher3/testing/TestProtocol.java b/src/com/android/launcher3/testing/TestProtocol.java
index 65bec25..75c0d03 100644
--- a/src/com/android/launcher3/testing/TestProtocol.java
+++ b/src/com/android/launcher3/testing/TestProtocol.java
@@ -112,4 +112,5 @@
     public static final String PERMANENT_DIAG_TAG = "TaplTarget";
     public static final String WORK_PROFILE_REMOVED = "b/159671700";
     public static final String FALLBACK_ACTIVITY_NO_SET = "b/181019015";
+    public static final String THIRD_PARTY_LAUNCHER_NOT_SET = "b/187080582";
 }
diff --git a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
index bf4eba0..dcb6dc1 100644
--- a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
+++ b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
@@ -153,6 +153,8 @@
     public static String dumpHprofData() {
         String result;
         if (sDumpWasGenerated) {
+            Log.d("b/195319692", "dump has already been generated by another test",
+                    new Exception());
             result = "dump has already been generated by another test";
         } else {
             try {
@@ -167,6 +169,7 @@
                             "am dumpheap " + device.getLauncherPackageName() + " " + fileName);
                 }
                 sDumpWasGenerated = true;
+                Log.d("b/195319692", "sDumpWasGenerated := true", new Exception());
                 result = "memory dump filename: " + fileName;
             } catch (Throwable e) {
                 Log.e(TAG, "dumpHprofData failed", e);