Changeset 255 for trunk/hiptop/pester/net/sabi/pester/Alarm.java

Timestamp:

07/19/06 04:38:21 (18 years ago)

Author:

Nicholas Riley

Message:

Handle time changes by rescheduling (if it's time-based) or just updating the fire time (if it's interval-based, since those use real time when active).

File:

• trunk/hiptop/pester/net/sabi/pester/Alarm.java (modified) (4 diffs)

trunk/hiptop/pester/net/sabi/pester/Alarm.java

@@ -8 +8 @@
 import danger.audio.RingToneObject;
 import danger.internal.Date;
+import danger.system.Hardware;
 import danger.util.LocaleUtils;
 import danger.util.StdActiveList;
@@ -27 +28 @@
     // transient
     private int mState;
+    private int mAbsoluteFireTime; // only valid if periodic
     private danger.app.Alarm mAlarm;
 
@@ -122 +124 @@
     }
 
-    // XXX trigger on EVENT_TIME_CHANGED
     void resume() {
         mState = STATE_SCHEDULED;
@@ -132 +133 @@
     }
 
+    void timeChanged() {
+        if (mState != STATE_SCHEDULED)
+            return;
+        if (getUsesPeriod()) {
+            int realSecondsLeft = mAbsoluteFireTime - Hardware.getAbsoluteTime();
+            mDate = new Date();
+            mDate.addSeconds(realSecondsLeft < 0 ? 0 : realSecondsLeft);
+            // no need to call resume(): alarm uses absolute time
+        } else {
+            resume();
+        }
+    }
+
     void schedule() {
         if (getUsesPeriod()) {
             mDate = new Date();
             mDate.addSeconds(mPeriod);
+            mAbsoluteFireTime = Hardware.getAbsoluteTime() + mPeriod;
         }
         resume();