Alarm: add support for power off alarm

When phone is in Power-Off Alarm boot mode:
    1. At the correct booting place to trigger the Power-Off Alarm UI
    2. At the Power-Off Alarm alert UI, don't dispatch related physical
            key, such as home, search, etc

Change-Id: I60ede3bde21d26eafb0610946f6d8bf884c85ddb

1 files changed, 13 insertions, 0 deletions

diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index 1cb337b..e86b5a5 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -3137,6 +3137,19 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                     + " canceled=" + canceled);
         }
 
+        // If the boot mode is power off alarm, we should not dispatch the several physical keys
+        // in power off alarm UI to avoid pausing power off alarm UI.
+        int isPowerOffAlarmMode = Settings.System.getInt(mContext.getContentResolver(),
+                Settings.System.POWER_OFF_ALARM_MODE, 0);
+        if (DEBUG_INPUT) { Log.d(TAG, "intercept Dispatching isPowerOffAlarmMode = " +
+                isPowerOffAlarmMode); }
+
+        if (isPowerOffAlarmMode == 1 && (keyCode == KeyEvent.KEYCODE_HOME
+                || keyCode == KeyEvent.KEYCODE_SEARCH
+                || keyCode == KeyEvent.KEYCODE_MENU)) {
+            return -1;  // ignore the physical key here
+        }
+
         // If we think we might have a volume down & power key chord on the way
         // but we're not sure, then tell the dispatcher to wait a little while and
         // try again later before dispatching.