From 2d588b857347fda465a963742c4f61e4014f3441 Mon Sep 17 00:00:00 2001
From: Nancy Chen <nancychen@google.com>
Date: Tue, 18 Aug 2015 16:39:02 -0700
Subject: Show snackbar to undo last deleted voicemail.

Snackbar will appear for 3 seconds during which the user can undo the
last deletion. The way it works is the snackbar appears for 3 seconds
and a delayed callback is set for 3 seconds after which the voicemail is
permanently deleted from the database. If a second (or third or fourth)
voicemail is deleted subsequently, the previous voicemails that were
waiting for the undo timeout are deleted immediately.

Bug: 22460745
Change-Id: I84b70994275975e4e3020321884d382cc87098dc
---
 .../dialer/voicemail/VoicemailPlaybackPresenter.java   | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

(limited to 'src/com/android/dialer/voicemail/VoicemailPlaybackPresenter.java')

diff --git a/src/com/android/dialer/voicemail/VoicemailPlaybackPresenter.java b/src/com/android/dialer/voicemail/VoicemailPlaybackPresenter.java
index 7270af787..540ffb446 100644
--- a/src/com/android/dialer/voicemail/VoicemailPlaybackPresenter.java
+++ b/src/com/android/dialer/voicemail/VoicemailPlaybackPresenter.java
@@ -94,6 +94,8 @@ public class VoicemailPlaybackPresenter
 
     public interface OnVoicemailDeletedListener {
         void onVoicemailDeleted(Uri uri);
+        void onVoicemailDeleteUndo();
+        void onVoicemailDeletedInDatabase();
     }
 
     /** The enumeration of {@link AsyncTask} objects we use in this class. */
@@ -730,12 +732,26 @@ public class VoicemailPlaybackPresenter
     }
 
     /* package */ void onVoicemailDeleted() {
-        // Trampoline the event notification to the interested listener
+        // Trampoline the event notification to the interested listener.
         if (mOnVoicemailDeletedListener != null) {
             mOnVoicemailDeletedListener.onVoicemailDeleted(mVoicemailUri);
         }
     }
 
+    /* package */ void onVoicemailDeleteUndo() {
+        // Trampoline the event notification to the interested listener.
+        if (mOnVoicemailDeletedListener != null) {
+            mOnVoicemailDeletedListener.onVoicemailDeleteUndo();
+        }
+    }
+
+    /* package */ void onVoicemailDeletedInDatabase() {
+        // Trampoline the event notification to the interested listener.
+        if (mOnVoicemailDeletedListener != null) {
+            mOnVoicemailDeletedListener.onVoicemailDeletedInDatabase();
+        }
+    }
+
     private static synchronized ScheduledExecutorService getScheduledExecutorServiceInstance() {
         if (mScheduledExecutorService == null) {
             mScheduledExecutorService = Executors.newScheduledThreadPool(NUMBER_OF_THREADS_IN_POOL);
-- 
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