From 93f0834976787a77d0e140e8f8a547846c33278d Mon Sep 17 00:00:00 2001
From: Mike Digman <digman@google.com>
Date: Fri, 24 Nov 2017 21:46:53 -0800
Subject: [PATCH] Add route for rotation suggestions from StatusBar to
 CommandQueue

Test: usused pipe
Change-Id: I7a4131f8f99edbc33f8d22eda3e7a6c97b8530bf
---
 .../android/internal/statusbar/IStatusBar.aidl  |  5 +++++
 .../systemui/statusbar/CommandQueue.java        | 17 +++++++++++++++++
 .../statusbar/StatusBarManagerInternal.java     |  7 +++++++
 .../statusbar/StatusBarManagerService.java      |  9 +++++++++
 4 files changed, 38 insertions(+)

diff --git a/core/java/com/android/internal/statusbar/IStatusBar.aidl b/core/java/com/android/internal/statusbar/IStatusBar.aidl
index bab0306aaf9f7..5ec90941aa887 100644
--- a/core/java/com/android/internal/statusbar/IStatusBar.aidl
+++ b/core/java/com/android/internal/statusbar/IStatusBar.aidl
@@ -112,6 +112,11 @@ oneway interface IStatusBar
      */
     void showGlobalActionsMenu();
 
+    /**
+     * Notifies the status bar that a new rotation suggestion is available.
+     */
+    void onProposedRotationChanged(int rotation);
+
     /**
      * Set whether the top app currently hides the statusbar.
      *
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java b/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
index 634927503747d..8e1b10432a3db 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
@@ -82,6 +82,7 @@ public class CommandQueue extends IStatusBar.Stub {
     private static final int MSG_TOGGLE_PANEL                  = 35 << MSG_SHIFT;
     private static final int MSG_SHOW_SHUTDOWN_UI              = 36 << MSG_SHIFT;
     private static final int MSG_SET_TOP_APP_HIDES_STATUS_BAR  = 37 << MSG_SHIFT;
+    private static final int MSG_ROTATION_PROPOSAL             = 38 << MSG_SHIFT;
 
     public static final int FLAG_EXCLUDE_NONE = 0;
     public static final int FLAG_EXCLUDE_SEARCH_PANEL = 1 << 0;
@@ -142,6 +143,8 @@ public class CommandQueue extends IStatusBar.Stub {
         default void handleSystemKey(int arg1) { }
         default void handleShowGlobalActionsMenu() { }
         default void handleShowShutdownUi(boolean isReboot, String reason) { }
+
+        default void onRotationProposal(int rotation) { }
     }
 
     @VisibleForTesting
@@ -458,6 +461,15 @@ public class CommandQueue extends IStatusBar.Stub {
         }
     }
 
+    @Override
+    public void onProposedRotationChanged(int rotation) {
+        synchronized (mLock) {
+            mHandler.removeMessages(MSG_ROTATION_PROPOSAL);
+            mHandler.obtainMessage(MSG_ROTATION_PROPOSAL, rotation, 0,
+                    null).sendToTarget();
+        }
+    }
+
     private final class H extends Handler {
         private H(Looper l) {
             super(l);
@@ -654,6 +666,11 @@ public class CommandQueue extends IStatusBar.Stub {
                         mCallbacks.get(i).setTopAppHidesStatusBar(msg.arg1 != 0);
                     }
                     break;
+                case MSG_ROTATION_PROPOSAL:
+                    for (int i = 0; i < mCallbacks.size(); i++) {
+                        mCallbacks.get(i).onRotationProposal(msg.arg1);
+                    }
+                    break;
             }
         }
     }
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
index b07fe98d806ef..3792bc6777ed9 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
@@ -90,6 +90,13 @@ public interface StatusBarManagerInternal {
 
     boolean showShutdownUi(boolean isReboot, String requestString);
 
+    /**
+     * Show a rotation suggestion that a user may approve to rotate the screen.
+     *
+     * @param rotation rotation suggestion
+     */
+    void onProposedRotationChanged(int rotation);
+
     public interface GlobalActionsListener {
         /**
          * Called when sysui starts and connects its status bar, or when the status bar binder
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
index c78a3406d0acb..c7c03b48a7780 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
@@ -406,6 +406,15 @@ public class StatusBarManagerService extends IStatusBarService.Stub {
             }
             return false;
         }
+
+        @Override
+        public void onProposedRotationChanged(int rotation) {
+            if (mBar != null){
+                try {
+                    mBar.onProposedRotationChanged(rotation);
+                } catch (RemoteException ex) {}
+            }
+        }
     };
 
     // ================================================================================