From 7def60daa049271c0d595d2ff566965693ee88cd Mon Sep 17 00:00:00 2001
From: Edward Savage-Jones <edward.savage-jones@sonymobile.com>
Date: Fri, 13 Nov 2015 13:27:03 +0100
Subject: [PATCH] Add support for locking the screen when the lid is closed

This commit adds configurable support for lockscreen
behaviour when the user has a device cover/lid.  This
is intended for lids with a viewing window so that the
user can see the time and interact with apps via the
window.

Change-Id: Id71883f66d1a180c4732912b3b59cabf9f4d7b6e
---
 core/java/android/view/WindowManagerPolicy.java             | 5 +++++
 core/res/res/values/config.xml                              | 4 ++++
 core/res/res/values/symbols.xml                             | 1 +
 .../java/com/android/server/policy/PhoneWindowManager.java  | 6 ++++++
 .../java/com/android/server/wm/WindowManagerService.java    | 6 ++++++
 5 files changed, 22 insertions(+)

diff --git a/core/java/android/view/WindowManagerPolicy.java b/core/java/android/view/WindowManagerPolicy.java
index aaf605274a9ac..0a7e594f081cd 100644
--- a/core/java/android/view/WindowManagerPolicy.java
+++ b/core/java/android/view/WindowManagerPolicy.java
@@ -429,6 +429,11 @@ public interface WindowManagerPolicy {
          */
         public int getLidState();
 
+        /**
+         * Lock the device now.
+         */
+        public void lockDeviceNow();
+
         /**
          * Returns a code that descripbes whether the camera lens is covered or not.
          */
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 0859e5a038561..794262e848cd9 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -673,6 +673,10 @@
          closed.  The default is 0. -->
     <integer name="config_lidNavigationAccessibility">0</integer>
 
+    <!-- Indicate whether closing the lid causes the lockscreen to appear.
+         The default is false. -->
+    <bool name="config_lidControlsScreenLock">false</bool>
+
     <!-- Indicate whether closing the lid causes the device to go to sleep and opening
          it causes the device to wake up.
          The default is false. -->
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 6d8c38f4100a2..0b105f98be111 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -1474,6 +1474,7 @@
   <java-symbol type="bool" name="config_enableLockScreenRotation" />
   <java-symbol type="bool" name="config_enableLockScreenTranslucentDecor" />
   <java-symbol type="bool" name="config_enableTranslucentDecor" />
+  <java-symbol type="bool" name="config_lidControlsScreenLock" />
   <java-symbol type="bool" name="config_lidControlsSleep" />
   <java-symbol type="bool" name="config_reverseDefaultRotation" />
   <java-symbol type="bool" name="config_showNavigationBar" />
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index 8ad45c935ea1e..bfe68b34066e6 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -392,6 +392,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     boolean mDeskDockEnablesAccelerometer;
     int mLidKeyboardAccessibility;
     int mLidNavigationAccessibility;
+    boolean mLidControlsScreenLock;
     boolean mLidControlsSleep;
     int mShortPressOnPowerBehavior;
     int mLongPressOnPowerBehavior;
@@ -1421,6 +1422,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                 com.android.internal.R.integer.config_lidKeyboardAccessibility);
         mLidNavigationAccessibility = mContext.getResources().getInteger(
                 com.android.internal.R.integer.config_lidNavigationAccessibility);
+        mLidControlsScreenLock = mContext.getResources().getBoolean(
+                com.android.internal.R.bool.config_lidControlsScreenLock);
         mLidControlsSleep = mContext.getResources().getBoolean(
                 com.android.internal.R.bool.config_lidControlsSleep);
         mTranslucentDecorEnabled = mContext.getResources().getBoolean(
@@ -6309,6 +6312,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             mPowerManager.goToSleep(SystemClock.uptimeMillis(),
                     PowerManager.GO_TO_SLEEP_REASON_LID_SWITCH,
                     PowerManager.GO_TO_SLEEP_FLAG_NO_DOZE);
+        } else if (mLidState == LID_CLOSED && mLidControlsScreenLock) {
+            mWindowManagerFuncs.lockDeviceNow();
         }
 
         synchronized (mLock) {
@@ -6887,6 +6892,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         pw.print(prefix); pw.print("mLidKeyboardAccessibility=");
                 pw.print(mLidKeyboardAccessibility);
                 pw.print(" mLidNavigationAccessibility="); pw.print(mLidNavigationAccessibility);
+                pw.print(" mLidControlsScreenLock="); pw.println(mLidControlsScreenLock);
                 pw.print(" mLidControlsSleep="); pw.println(mLidControlsSleep);
         pw.print(prefix);
                 pw.print("mShortPressOnPowerBehavior="); pw.print(mShortPressOnPowerBehavior);
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 101f64b841915..267f4a79bb5ea 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -5632,6 +5632,12 @@ public class WindowManagerService extends IWindowManager.Stub
         }
     }
 
+    // Called by window manager policy. Not exposed externally.
+    @Override
+    public void lockDeviceNow() {
+        lockNow(null);
+    }
+
     // Called by window manager policy. Not exposed externally.
     @Override
     public int getCameraLensCoverState() {