Implement auto-sleep functionality.

Added a new SLEEP_TIMEOUT setting which governs how long the device will
remain awake or dreaming without user activity.  By default this
value is set to -1 which maintains today's existing behavior.

We basically represent the time we are allowed to be dreaming as a new
kind of user activity summary state called DREAM, similar to BRIGHT
and DIM.  When the sleep timeout expires, the state is cleared and
the dream ends.

Bug: 17665809
Change-Id: I59aa7648dcec215f1285464fc1134934a09230e5

2 files changed, 20 insertions, 1 deletions

diff --git a/packages/SettingsProvider/res/values/defaults.xml b/packages/SettingsProvider/res/values/defaults.xml
index 934ed38..efba03d 100644
--- a/packages/SettingsProvider/res/values/defaults.xml
+++ b/packages/SettingsProvider/res/values/defaults.xml
@@ -19,6 +19,7 @@
 <resources>
     <bool name="def_dim_screen">true</bool>
     <integer name="def_screen_off_timeout">60000</integer>
+    <integer name="def_sleep_timeout">-1</integer>
     <bool name="def_airplane_mode_on">false</bool>
     <!-- Comma-separated list of bluetooth, wifi, and cell. -->
     <string name="def_airplane_mode_radios" translatable="false">cell,bluetooth,wifi,nfc,wimax</string>
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java b/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
index 873257c..b17b4cc 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
@@ -70,7 +70,7 @@ public class DatabaseHelper extends SQLiteOpenHelper {
     // database gets upgraded properly. At a minimum, please confirm that 'upgradeVersion'
     // is properly propagated through your change.  Not doing so will result in a loss of user
     // settings.
-    private static final int DATABASE_VERSION = 112;
+    private static final int DATABASE_VERSION = 113;
 
     private Context mContext;
     private int mUserHandle;
@@ -1811,6 +1811,22 @@ public class DatabaseHelper extends SQLiteOpenHelper {
             upgradeVersion = 112;
         }
 
+        if (upgradeVersion < 113) {
+            db.beginTransaction();
+            SQLiteStatement stmt = null;
+            try {
+                stmt = db.compileStatement("INSERT OR IGNORE INTO secure(name,value)"
+                        + " VALUES(?,?);");
+                loadIntegerSetting(stmt, Settings.Secure.SLEEP_TIMEOUT,
+                        R.integer.def_sleep_timeout);
+                db.setTransactionSuccessful();
+            } finally {
+                db.endTransaction();
+                if (stmt != null) stmt.close();
+            }
+            upgradeVersion = 113;
+        }
+
         // *** Remember to update DATABASE_VERSION above!
 
         if (upgradeVersion != currentVersion) {
@@ -2382,6 +2398,8 @@ public class DatabaseHelper extends SQLiteOpenHelper {
             loadBooleanSetting(stmt, Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS,
                     R.bool.def_lock_screen_allow_private_notifications);
 
+            loadIntegerSetting(stmt, Settings.Secure.SLEEP_TIMEOUT,
+                    R.integer.def_sleep_timeout);
         } finally {
             if (stmt != null) stmt.close();
         }