Merge "DO NOT MERGE - Ensuring that there are per-user last stack active times." into nyc-mr2-devnougat-mr2-dev

4 files changed, 59 insertions, 11 deletions

diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index ff1281731a18..a8209af6aa2a 100755
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -6167,6 +6167,14 @@ public final class Settings {
                 "lock_screen_show_notifications";
 
         /**
+         * This preference stores the last stack active task time for each user, which affects what
+         * tasks will be visible in Overview.
+         * @hide
+         */
+        public static final String OVERVIEW_LAST_STACK_ACTIVE_TIME =
+                "overview_last_stack_active_time";
+
+        /**
          * List of TV inputs that are currently hidden. This is a string
          * containing the IDs of all hidden TV inputs. Each ID is encoded by
          * {@link android.net.Uri#encode(String)} and separated by ':'.
diff --git a/packages/SystemUI/src/com/android/systemui/Prefs.java b/packages/SystemUI/src/com/android/systemui/Prefs.java
index 19ae2954bb2a..b9ae585c339c 100644
--- a/packages/SystemUI/src/com/android/systemui/Prefs.java
+++ b/packages/SystemUI/src/com/android/systemui/Prefs.java
@@ -49,6 +49,7 @@ public final class Prefs {
         Key.QS_WORK_ADDED,
     })
     public @interface Key {
+        @Deprecated
         String OVERVIEW_LAST_STACK_TASK_ACTIVE_TIME = "OverviewLastStackTaskActiveTime";
         String DEBUG_MODE_ENABLED = "debugModeEnabled";
         String HOTSPOT_TILE_LAST_USED = "HotspotTileLastUsed";
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
index 6e4a69bc1188..764397b93881 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
@@ -31,6 +31,7 @@ import android.os.Handler;
 import android.os.SystemClock;
 import android.os.UserHandle;
 import android.provider.Settings;
+import android.provider.Settings.Secure;
 import android.util.Log;
 import android.view.KeyEvent;
 import android.view.View;
@@ -42,7 +43,6 @@ import android.view.WindowManager.LayoutParams;
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.MetricsProto.MetricsEvent;
 import com.android.systemui.Interpolators;
-import com.android.systemui.Prefs;
 import com.android.systemui.R;
 import com.android.systemui.recents.events.EventBus;
 import com.android.systemui.recents.events.activity.CancelEnterRecentsWindowAnimationEvent;
@@ -179,8 +179,10 @@ public class RecentsActivity extends Activity implements ViewTreeObserver.OnPreD
                 // is still valid.  Otherwise, we need to reset the lastStackactiveTime to the
                 // currentTime and remove the old tasks in between which would not be previously
                 // visible, but currently would be in the new currentTime
-                long oldLastStackActiveTime = Prefs.getLong(RecentsActivity.this,
-                        Prefs.Key.OVERVIEW_LAST_STACK_TASK_ACTIVE_TIME, -1);
+                int currentUser = SystemServicesProxy.getInstance(RecentsActivity.this)
+                        .getCurrentUser();
+                long oldLastStackActiveTime = Settings.Secure.getLongForUser(getContentResolver(),
+                        Secure.OVERVIEW_LAST_STACK_ACTIVE_TIME, -1, currentUser);
                 if (oldLastStackActiveTime != -1) {
                     long currentTime = System.currentTimeMillis();
                     if (currentTime < oldLastStackActiveTime) {
@@ -198,8 +200,8 @@ public class RecentsActivity extends Activity implements ViewTreeObserver.OnPreD
                                 Recents.getSystemServices().removeTask(task.persistentId);
                             }
                         }
-                        Prefs.putLong(RecentsActivity.this,
-                                Prefs.Key.OVERVIEW_LAST_STACK_TASK_ACTIVE_TIME, currentTime);
+                        Settings.Secure.putLongForUser(RecentsActivity.this.getContentResolver(),
+                                Secure.OVERVIEW_LAST_STACK_ACTIVE_TIME, currentTime, currentUser);
                     }
                 }
             }
@@ -825,8 +827,9 @@ public class RecentsActivity extends Activity implements ViewTreeObserver.OnPreD
         Recents.getTaskLoader().dump(prefix, writer);
 
         String id = Integer.toHexString(System.identityHashCode(this));
-        long lastStackActiveTime = Prefs.getLong(this,
-                Prefs.Key.OVERVIEW_LAST_STACK_TASK_ACTIVE_TIME, -1);
+        long lastStackActiveTime = Settings.Secure.getLongForUser(getContentResolver(),
+                Secure.OVERVIEW_LAST_STACK_ACTIVE_TIME, -1,
+                SystemServicesProxy.getInstance(this).getCurrentUser());
 
         writer.print(prefix); writer.print(TAG);
         writer.print(" visible="); writer.print(mIsVisible ? "Y" : "N");
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
index 1f082cce54c1..0ca4cb9031a4 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
@@ -26,6 +26,8 @@ import android.graphics.Bitmap;
 import android.graphics.drawable.Drawable;
 import android.os.UserHandle;
 import android.os.UserManager;
+import android.provider.Settings;
+import android.provider.Settings.Secure;
 import android.util.ArraySet;
 import android.util.SparseArray;
 import android.util.SparseIntArray;
@@ -129,14 +131,17 @@ public class RecentsTaskLoadPlan {
             preloadRawTasks(includeFrontMostExcludedTask);
         }
 
+        SystemServicesProxy ssp = SystemServicesProxy.getInstance(mContext);
         SparseArray<Task.TaskKey> affiliatedTasks = new SparseArray<>();
         SparseIntArray affiliatedTaskCounts = new SparseIntArray();
         String dismissDescFormat = mContext.getString(
                 R.string.accessibility_recents_item_will_be_dismissed);
         String appInfoDescFormat = mContext.getString(
                 R.string.accessibility_recents_item_open_app_info);
-        long lastStackActiveTime = Prefs.getLong(mContext,
-                Prefs.Key.OVERVIEW_LAST_STACK_TASK_ACTIVE_TIME, 0);
+        int currentUserId = ssp.getCurrentUser();
+        long legacyLastStackActiveTime = migrateLegacyLastStackActiveTime(currentUserId);
+        long lastStackActiveTime = Settings.Secure.getLongForUser(mContext.getContentResolver(),
+                Secure.OVERVIEW_LAST_STACK_ACTIVE_TIME, legacyLastStackActiveTime, currentUserId);
         if (RecentsDebugFlags.Static.EnableMockTasks) {
             lastStackActiveTime = 0;
         }
@@ -198,8 +203,8 @@ public class RecentsTaskLoadPlan {
             affiliatedTasks.put(taskKey.id, taskKey);
         }
         if (newLastStackActiveTime != -1) {
-            Prefs.putLong(mContext, Prefs.Key.OVERVIEW_LAST_STACK_TASK_ACTIVE_TIME,
-                    newLastStackActiveTime);
+            Settings.Secure.putLongForUser(mContext.getContentResolver(),
+                    Secure.OVERVIEW_LAST_STACK_ACTIVE_TIME, newLastStackActiveTime, currentUserId);
         }
 
         // Initialize the stacks
@@ -278,4 +283,35 @@ public class RecentsTaskLoadPlan {
     private boolean isHistoricalTask(ActivityManager.RecentTaskInfo t) {
         return t.lastActiveTime < (System.currentTimeMillis() - SESSION_BEGIN_TIME);
     }
+
+    /**
+     * Migrate the last active time from the prefs to the secure settings.
+     *
+     * The first time this runs, it will:
+     * 1) fetch the last stack active time from the prefs
+     * 2) set the prefs to the last stack active time for all users
+     * 3) clear the pref
+     * 4) return the last stack active time
+     *
+     * Subsequent calls to this will return zero.
+     */
+    private long migrateLegacyLastStackActiveTime(int currentUserId) {
+        long legacyLastStackActiveTime = Prefs.getLong(mContext,
+                Prefs.Key.OVERVIEW_LAST_STACK_TASK_ACTIVE_TIME, -1);
+        if (legacyLastStackActiveTime != -1) {
+            Prefs.remove(mContext, Prefs.Key.OVERVIEW_LAST_STACK_TASK_ACTIVE_TIME);
+            UserManager userMgr = (UserManager) mContext.getSystemService(Context.USER_SERVICE);
+            List<UserInfo> users = userMgr.getUsers();
+            for (int i = 0; i < users.size(); i++) {
+                int userId = users.get(i).id;
+                if (userId != currentUserId) {
+                    Settings.Secure.putLongForUser(mContext.getContentResolver(),
+                            Secure.OVERVIEW_LAST_STACK_ACTIVE_TIME, legacyLastStackActiveTime,
+                            userId);
+                }
+            }
+            return legacyLastStackActiveTime;
+        }
+        return 0;
+    }
 }