Merge "[DO NOT MERGE ANYWHERE] Add swipes left method in Background.java" into rvc-qpr-dev
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index e1f2b32..ae89ded 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -18,6 +18,7 @@
 
 import static android.content.pm.ActivityInfo.CONFIG_ORIENTATION;
 import static android.content.pm.ActivityInfo.CONFIG_SCREEN_SIZE;
+import static android.content.pm.ActivityInfo.CONFIG_UI_MODE;
 import static android.view.accessibility.AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED;
 
 import static com.android.launcher3.AbstractFloatingView.TYPE_ALL;
@@ -1103,7 +1104,11 @@
         int stateOrdinal = savedState.getInt(RUNTIME_STATE, NORMAL.ordinal);
         LauncherState[] stateValues = LauncherState.values();
         LauncherState state = stateValues[stateOrdinal];
-        if (!state.shouldDisableRestore()) {
+
+        NonConfigInstance lastInstance = (NonConfigInstance) getLastNonConfigurationInstance();
+        boolean forceRestore = lastInstance != null
+                && (lastInstance.config.diff(mOldConfig) & CONFIG_UI_MODE) != 0;
+        if (forceRestore || !state.shouldDisableRestore()) {
             mStateManager.goToState(state, false /* animated */);
         }
 
@@ -1343,6 +1348,13 @@
         closeContextMenu();
     }
 
+    @Override
+    public Object onRetainNonConfigurationInstance() {
+        NonConfigInstance instance = new NonConfigInstance();
+        instance.config = new Configuration(mOldConfig);
+        return instance;
+    }
+
     public AllAppsTransitionController getAllAppsController() {
         return mAllAppsController;
     }
@@ -2745,4 +2757,8 @@
 
         void onLauncherResume();
     }
+
+    private static class NonConfigInstance {
+        public Configuration config;
+    }
 }
diff --git a/src/com/android/launcher3/model/AppLaunchTracker.java b/src/com/android/launcher3/model/AppLaunchTracker.java
index 629a0ee..906c2e0 100644
--- a/src/com/android/launcher3/model/AppLaunchTracker.java
+++ b/src/com/android/launcher3/model/AppLaunchTracker.java
@@ -41,6 +41,7 @@
     public static final String CONTAINER_PREDICTIONS = Integer.toString(ContainerType.PREDICTION);
     public static final String CONTAINER_SEARCH = Integer.toString(ContainerType.SEARCHRESULT);
     public static final String CONTAINER_OVERVIEW = Integer.toString(ContainerType.OVERVIEW);
+    public static final String CONTAINER_HOTSEAT = Integer.toString(ContainerType.HOTSEAT);
 
 
     public static final MainThreadInitializedObject<AppLaunchTracker> INSTANCE =
diff --git a/src/com/android/launcher3/statemanager/StatefulActivity.java b/src/com/android/launcher3/statemanager/StatefulActivity.java
index dbe5f42..601e117 100644
--- a/src/com/android/launcher3/statemanager/StatefulActivity.java
+++ b/src/com/android/launcher3/statemanager/StatefulActivity.java
@@ -121,7 +121,9 @@
         final int origDragLayerChildCount = dragLayer.getChildCount();
         super.onStop();
 
-        getStateManager().moveToRestState();
+        if (!isChangingConfigurations()) {
+            getStateManager().moveToRestState();
+        }
 
         // Workaround for b/78520668, explicitly trim memory once UI is hidden
         onTrimMemory(TRIM_MEMORY_UI_HIDDEN);
diff --git a/src/com/android/launcher3/touch/ItemClickHandler.java b/src/com/android/launcher3/touch/ItemClickHandler.java
index 8486666..f50b2b3 100644
--- a/src/com/android/launcher3/touch/ItemClickHandler.java
+++ b/src/com/android/launcher3/touch/ItemClickHandler.java
@@ -19,6 +19,7 @@
 import static com.android.launcher3.Launcher.REQUEST_RECONFIGURE_APPWIDGET;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_FOLDER_OPEN;
 import static com.android.launcher3.model.AppLaunchTracker.CONTAINER_ALL_APPS;
+import static com.android.launcher3.model.AppLaunchTracker.CONTAINER_HOTSEAT;
 import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_DISABLED_BY_PUBLISHER;
 import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_DISABLED_LOCKED_USER;
 import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_DISABLED_QUIET_USER;
@@ -42,6 +43,7 @@
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAppWidgetProviderInfo;
+import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.folder.Folder;
@@ -240,6 +242,12 @@
             }
         }
 
+        if (sourceContainer == null && (
+                shortcut.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT
+                        || shortcut.container
+                        == LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION)) {
+            sourceContainer = CONTAINER_HOTSEAT;
+        }
         // Start activities
         startAppShortcutOrInfoActivity(v, shortcut, launcher, sourceContainer);
     }