Add generic "INTERACTION" event type to UsageStatsManager

This will allow for updating a package's last time used
property for packages that are interacted in ways other than
launching their activities (interacting with notifications, etc.)

Change-Id: Ic6f9519f46fa04abd37ea6fc9475bcd9ea721003

3 files changed, 35 insertions, 1 deletions

diff --git a/services/usage/java/com/android/server/usage/IntervalStats.java b/services/usage/java/com/android/server/usage/IntervalStats.java
index 5f639ab..869d6e1 100644
--- a/services/usage/java/com/android/server/usage/IntervalStats.java
+++ b/services/usage/java/com/android/server/usage/IntervalStats.java
@@ -81,6 +81,17 @@ class IntervalStats {
         return event;
     }
 
+    private boolean isStatefulEvent(int eventType) {
+        switch (eventType) {
+            case UsageEvents.Event.MOVE_TO_FOREGROUND:
+            case UsageEvents.Event.MOVE_TO_BACKGROUND:
+            case UsageEvents.Event.END_OF_DAY:
+            case UsageEvents.Event.CONTINUE_PREVIOUS_DAY:
+                return true;
+        }
+        return false;
+    }
+
     void update(String packageName, long timeStamp, int eventType) {
         UsageStats usageStats = getOrCreateUsageStats(packageName);
 
@@ -93,7 +104,11 @@ class IntervalStats {
                 usageStats.mTotalTimeInForeground += timeStamp - usageStats.mLastTimeUsed;
             }
         }
-        usageStats.mLastEvent = eventType;
+
+        if (isStatefulEvent(eventType)) {
+            usageStats.mLastEvent = eventType;
+        }
+
         usageStats.mLastTimeUsed = timeStamp;
         usageStats.mEndTimeStamp = timeStamp;
 
diff --git a/services/usage/java/com/android/server/usage/UsageStatsService.java b/services/usage/java/com/android/server/usage/UsageStatsService.java
index 485b2a2..5eefe6a 100644
--- a/services/usage/java/com/android/server/usage/UsageStatsService.java
+++ b/services/usage/java/com/android/server/usage/UsageStatsService.java
@@ -488,6 +488,23 @@ public class UsageStatsService extends SystemService implements
         }
 
         @Override
+        public void reportEvent(String packageName, int userId, int eventType) {
+            if (packageName == null) {
+                Slog.w(TAG, "Event reported without a package name");
+                return;
+            }
+
+            UsageEvents.Event event = new UsageEvents.Event();
+            event.mPackage = packageName;
+
+            // This will later be converted to system time.
+            event.mTimeStamp = SystemClock.elapsedRealtime();
+
+            event.mEventType = eventType;
+            mHandler.obtainMessage(MSG_REPORT_EVENT, userId, 0, event).sendToTarget();
+        }
+
+        @Override
         public void reportConfigurationChange(Configuration config, int userId) {
             if (config == null) {
                 Slog.w(TAG, "Configuration event reported with a null config");
diff --git a/services/usage/java/com/android/server/usage/UserUsageStatsService.java b/services/usage/java/com/android/server/usage/UserUsageStatsService.java
index 6596781..75fa030 100644
--- a/services/usage/java/com/android/server/usage/UserUsageStatsService.java
+++ b/services/usage/java/com/android/server/usage/UserUsageStatsService.java
@@ -570,6 +570,8 @@ class UserUsageStatsService {
                 return "CONTINUE_PREVIOUS_DAY";
             case UsageEvents.Event.CONFIGURATION_CHANGE:
                 return "CONFIGURATION_CHANGE";
+            case UsageEvents.Event.INTERACTION:
+                return "INTERACTION";
             default:
                 return "UNKNOWN";
         }