From 318abc932467485e191578a923baba2ed40834f0 Mon Sep 17 00:00:00 2001
From: lpeter <@google.com>
Date: Fri, 4 May 2018 16:13:14 +0800
Subject: [IdleController] Support dock scenario on idle or active judgement
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In the current design, IdleController of Job service considers devices as ‘idle’ after 71 minutes of screen off. But under docking use scenario, devices screen might remain on for a very long time and it’s not necessary implying the device being interactive with users.
So create a mechanism for device to enter the ‘idle’ state that JobScheduler can kick off idle tasks.

Bug: 79183658
Test: atest DeviceStatesTest
Change-Id: I5b307ca51e28ffca63f79a9c43984c3b76e51629
---
 core/java/android/content/Intent.java              | 20 ++++++++++
 core/res/AndroidManifest.xml                       |  4 ++
 .../android/server/job/JobSchedulerService.java    | 12 ++++++
 .../server/job/JobSchedulerShellCommand.java       | 27 +++++++++++++
 .../server/job/controllers/IdleController.java     | 44 ++++++++++++++++++----
 5 files changed, 99 insertions(+), 8 deletions(-)

diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index ea0811086d52..1bc3bc9732eb 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -3986,6 +3986,26 @@ public class Intent implements Parcelable, Cloneable {
      */
     public static final int EXTRA_THERMAL_STATE_EXCEEDED = 2;
 
+    /**
+     * Broadcast Action: Indicates the dock in idle state while device is docked.
+     *
+     * <p class="note">This is a protected intent that can only be sent
+     * by the system.
+     *
+     * @hide
+     */
+    public static final String ACTION_DOCK_IDLE = "android.intent.action.DOCK_IDLE";
+
+    /**
+     * Broadcast Action: Indicates the dock in active state while device is docked.
+     *
+     * <p class="note">This is a protected intent that can only be sent
+     * by the system.
+     *
+     * @hide
+     */
+    public static final String ACTION_DOCK_ACTIVE = "android.intent.action.DOCK_ACTIVE";
+
 
     // ---------------------------------------------------------------------
     // ---------------------------------------------------------------------
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 87d891539a02..e35b63113f59 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -599,6 +599,10 @@
     <protected-broadcast android:name="android.app.action.DATA_SHARING_RESTRICTION_CHANGED" />
     <protected-broadcast android:name="android.app.action.STATSD_STARTED" />
 
+    <!-- For IdleController -->
+    <protected-broadcast android:name="android.intent.action.DOCK_IDLE" />
+    <protected-broadcast android:name="android.intent.action.DOCK_ACTIVE" />
+
     <!-- ====================================================================== -->
     <!--                          RUNTIME PERMISSIONS                           -->
     <!-- ====================================================================== -->
diff --git a/services/core/java/com/android/server/job/JobSchedulerService.java b/services/core/java/com/android/server/job/JobSchedulerService.java
index b441bafe975e..0b7c5b943e5e 100644
--- a/services/core/java/com/android/server/job/JobSchedulerService.java
+++ b/services/core/java/com/android/server/job/JobSchedulerService.java
@@ -2961,6 +2961,18 @@ public class JobSchedulerService extends com.android.server.SystemService
         return 0;
     }
 
+    void triggerDockState(boolean idleState) {
+        final Intent dockIntent;
+        if (idleState) {
+            dockIntent = new Intent(Intent.ACTION_DOCK_IDLE);
+        } else {
+            dockIntent = new Intent(Intent.ACTION_DOCK_ACTIVE);
+        }
+        dockIntent.setPackage("android");
+        dockIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | Intent.FLAG_RECEIVER_FOREGROUND);
+        getContext().sendBroadcastAsUser(dockIntent, UserHandle.ALL);
+    }
+
     private String printContextIdToJobMap(JobStatus[] map, String initial) {
         StringBuilder s = new StringBuilder(initial + ": ");
         for (int i=0; i<map.length; i++) {
diff --git a/services/core/java/com/android/server/job/JobSchedulerShellCommand.java b/services/core/java/com/android/server/job/JobSchedulerShellCommand.java
index 63225f34234f..e3614413121a 100644
--- a/services/core/java/com/android/server/job/JobSchedulerShellCommand.java
+++ b/services/core/java/com/android/server/job/JobSchedulerShellCommand.java
@@ -66,6 +66,8 @@ public final class JobSchedulerShellCommand extends ShellCommand {
                     return getJobState(pw);
                 case "heartbeat":
                     return doHeartbeat(pw);
+                case "trigger-dock-state":
+                    return triggerDockState(pw);
                 default:
                     return handleDefaultCommands(cmd);
             }
@@ -349,6 +351,29 @@ public final class JobSchedulerShellCommand extends ShellCommand {
         }
     }
 
+    private int triggerDockState(PrintWriter pw) throws Exception {
+        checkPermission("trigger wireless charging dock state");
+
+        final String opt = getNextArgRequired();
+        boolean idleState;
+        if ("idle".equals(opt)) {
+            idleState = true;
+        } else if ("active".equals(opt)) {
+            idleState = false;
+        } else {
+            getErrPrintWriter().println("Error: unknown option " + opt);
+            return 1;
+        }
+
+        final long ident = Binder.clearCallingIdentity();
+        try {
+            mInternal.triggerDockState(idleState);
+        } finally {
+            Binder.restoreCallingIdentity(ident);
+        }
+        return 0;
+    }
+
     @Override
     public void onHelp() {
         final PrintWriter pw = getOutPrintWriter();
@@ -403,6 +428,8 @@ public final class JobSchedulerShellCommand extends ShellCommand {
         pw.println("    Options:");
         pw.println("      -u or --user: specify which user's job is to be run; the default is");
         pw.println("         the primary or system user");
+        pw.println("  trigger-dock-state [idle|active]");
+        pw.println("    Trigger wireless charging dock state.  Active by default.");
         pw.println();
     }
 
diff --git a/services/core/java/com/android/server/job/controllers/IdleController.java b/services/core/java/com/android/server/job/controllers/IdleController.java
index 40d2a3a4a094..644f2c4d6864 100644
--- a/services/core/java/com/android/server/job/controllers/IdleController.java
+++ b/services/core/java/com/android/server/job/controllers/IdleController.java
@@ -42,7 +42,7 @@ public final class IdleController extends StateController {
             || Log.isLoggable(TAG, Log.DEBUG);
 
     // Policy: we decide that we're "idle" if the device has been unused /
-    // screen off or dreaming for at least this long
+    // screen off or dreaming or wireless charging dock idle for at least this long
     private long mInactivityIdleThreshold;
     private long mIdleWindowSlop;
     final ArraySet<JobStatus> mTrackedTasks = new ArraySet<>();
@@ -105,6 +105,7 @@ public final class IdleController extends StateController {
         // on the main looper thread, either in onReceive() or in an alarm callback.
         private boolean mIdle;
         private boolean mScreenOn;
+        private boolean mDockIdle;
 
         private AlarmManager.OnAlarmListener mIdleAlarmListener = () -> {
             handleIdleTrigger();
@@ -117,6 +118,7 @@ public final class IdleController extends StateController {
             // device in some meaningful way.
             mIdle = false;
             mScreenOn = true;
+            mDockIdle = false;
         }
 
         public boolean isIdle() {
@@ -137,6 +139,10 @@ public final class IdleController extends StateController {
             // Debugging/instrumentation
             filter.addAction(ActivityManagerService.ACTION_TRIGGER_IDLE);
 
+            // Wireless charging dock state
+            filter.addAction(Intent.ACTION_DOCK_IDLE);
+            filter.addAction(Intent.ACTION_DOCK_ACTIVE);
+
             mContext.registerReceiver(this, filter);
         }
 
@@ -144,11 +150,22 @@ public final class IdleController extends StateController {
         public void onReceive(Context context, Intent intent) {
             final String action = intent.getAction();
             if (action.equals(Intent.ACTION_SCREEN_ON)
-                    || action.equals(Intent.ACTION_DREAMING_STOPPED)) {
+                    || action.equals(Intent.ACTION_DREAMING_STOPPED)
+                    || action.equals(Intent.ACTION_DOCK_ACTIVE)) {
+                if (action.equals(Intent.ACTION_DOCK_ACTIVE)) {
+                    if (!mScreenOn) {
+                        // Ignore this intent during screen off
+                        return;
+                    } else {
+                        mDockIdle = false;
+                    }
+                } else {
+                    mScreenOn = true;
+                    mDockIdle = false;
+                }
                 if (DEBUG) {
                     Slog.v(TAG,"exiting idle : " + action);
                 }
-                mScreenOn = true;
                 //cancel the alarm
                 mAlarm.cancel(mIdleAlarmListener);
                 if (mIdle) {
@@ -157,17 +174,28 @@ public final class IdleController extends StateController {
                     reportNewIdleState(mIdle);
                 }
             } else if (action.equals(Intent.ACTION_SCREEN_OFF)
-                    || action.equals(Intent.ACTION_DREAMING_STARTED)) {
-                // when the screen goes off or dreaming starts, we schedule the
-                // alarm that will tell us when we have decided the device is
+                    || action.equals(Intent.ACTION_DREAMING_STARTED)
+                    || action.equals(Intent.ACTION_DOCK_IDLE)) {
+                // when the screen goes off or dreaming starts or wireless charging dock in idle,
+                // we schedule the alarm that will tell us when we have decided the device is
                 // truly idle.
+                if (action.equals(Intent.ACTION_DOCK_IDLE)) {
+                    if (!mScreenOn) {
+                        // Ignore this intent during screen off
+                        return;
+                    } else {
+                        mDockIdle = true;
+                    }
+                } else {
+                    mScreenOn = false;
+                    mDockIdle = false;
+                }
                 final long nowElapsed = sElapsedRealtimeClock.millis();
                 final long when = nowElapsed + mInactivityIdleThreshold;
                 if (DEBUG) {
                     Slog.v(TAG, "Scheduling idle : " + action + " now:" + nowElapsed + " when="
                             + when);
                 }
-                mScreenOn = false;
                 mAlarm.setWindow(AlarmManager.ELAPSED_REALTIME_WAKEUP,
                         when, mIdleWindowSlop, "JS idleness", mIdleAlarmListener, null);
             } else if (action.equals(ActivityManagerService.ACTION_TRIGGER_IDLE)) {
@@ -177,7 +205,7 @@ public final class IdleController extends StateController {
 
         private void handleIdleTrigger() {
             // idle time starts now. Do not set mIdle if screen is on.
-            if (!mIdle && !mScreenOn) {
+            if (!mIdle && (!mScreenOn || mDockIdle)) {
                 if (DEBUG) {
                     Slog.v(TAG, "Idle trigger fired @ " + sElapsedRealtimeClock.millis());
                 }
-- 
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