commit 7f2539cc9dcbee0ccfde77bf1d20cb279582262b
author Evan Laird <evanlaird@google.com> Wed Apr 26 14:12:34 2017 -0400
committer Evan Laird <evanlaird@google.com> Mon May 01 20:09:53 2017 +0000
tree 489e8c5a04804ea5f0166b890d46b93326cabfb1
parent 0e8606ed76f5446e69d247e6bd65112f5e20f0ea

Add "When to start" definitions to DreamBackend

Eases the logic of talking to DreamBackend from settings in that you can
now ask it for a constant describing when the screen saver will turn on.

Test: none
Bug: 35031991
Change-Id: I4a35620b9baf1830998fd4b3e6ebcfe663d5c8ad

packages/SettingsLib/src/com/android/settingslib/dream/DreamBackend.java

diff --git a/packages/SettingsLib/src/com/android/settingslib/dream/DreamBackend.java b/packages/SettingsLib/src/com/android/settingslib/dream/DreamBackend.java
index e5cdc85..988060e 100644
--- a/packages/SettingsLib/src/com/android/settingslib/dream/DreamBackend.java
+++ b/packages/SettingsLib/src/com/android/settingslib/dream/DreamBackend.java
@@ -16,6 +16,7 @@
 
 package com.android.settingslib.dream;
 
+import android.annotation.IntDef;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -35,6 +36,8 @@
 import android.util.Log;
 import android.util.Xml;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
 
@@ -68,6 +71,15 @@
         }
     }
 
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef({WHILE_CHARGING, WHILE_DOCKED, EITHER, NEVER})
+    public @interface WhenToDream{}
+
+    public static final int WHILE_CHARGING = 0;
+    public static final int WHILE_DOCKED = 1;
+    public static final int EITHER = 2;
+    public static final int NEVER = 3;
+
     private final Context mContext;
     private final IDreamManager mDreamManager;
     private final DreamInfoComparator mComparator;
@@ -75,6 +87,15 @@
     private final boolean mDreamsActivatedOnSleepByDefault;
     private final boolean mDreamsActivatedOnDockByDefault;
 
+    private static DreamBackend sInstance;
+
+    public static DreamBackend getInstance(Context context) {
+        if (sInstance == null) {
+            sInstance = new DreamBackend(context);
+        }
+        return sInstance;
+    }
+
     public DreamBackend(Context context) {
         mContext = context;
         mDreamManager = IDreamManager.Stub.asInterface(
@@ -138,6 +159,42 @@
         return null;
     }
 
+    public @WhenToDream int getWhenToDreamSetting() {
+        if (!isEnabled()) {
+            return NEVER;
+        }
+        return isActivatedOnDock() && isActivatedOnSleep() ? EITHER
+                : isActivatedOnDock() ? WHILE_DOCKED
+                : isActivatedOnSleep() ? WHILE_CHARGING
+                : NEVER;
+    }
+
+    public void setWhenToDream(@WhenToDream int whenToDream) {
+        setEnabled(whenToDream != NEVER);
+
+        switch (whenToDream) {
+            case WHILE_CHARGING:
+                setActivatedOnDock(false);
+                setActivatedOnSleep(true);
+                break;
+
+            case WHILE_DOCKED:
+                setActivatedOnDock(true);
+                setActivatedOnSleep(false);
+                break;
+
+            case EITHER:
+                setActivatedOnDock(true);
+                setActivatedOnSleep(true);
+                break;
+
+            case NEVER:
+            default:
+                break;
+        }
+
+    }
+
     public boolean isEnabled() {
         return getBoolean(Settings.Secure.SCREENSAVER_ENABLED, mDreamsEnabledByDefault);
     }