From d14c8c9039c0056e1f30ad5d410c8fde20d63df5 Mon Sep 17 00:00:00 2001
From: Jeff Brown <jeffbrown@google.com>
Date: Tue, 7 Jan 2014 18:13:09 -0800
Subject: Add flag to force public virtual display to show own content.

Change-Id: I1039f2ef3154169ec90411a4c7ba2c94629f72c4
---
 .../java/com/android/server/display/DisplayDeviceInfo.java     | 10 ++++++++++
 .../java/com/android/server/display/DisplayManagerService.java |  8 ++++----
 .../java/com/android/server/display/VirtualDisplayAdapter.java |  7 +++++--
 3 files changed, 19 insertions(+), 6 deletions(-)

(limited to 'services/core/java')

diff --git a/services/core/java/com/android/server/display/DisplayDeviceInfo.java b/services/core/java/com/android/server/display/DisplayDeviceInfo.java
index 11c5d87..11aecdd 100644
--- a/services/core/java/com/android/server/display/DisplayDeviceInfo.java
+++ b/services/core/java/com/android/server/display/DisplayDeviceInfo.java
@@ -63,6 +63,7 @@ final class DisplayDeviceInfo {
     /**
      * Flag: Indicates that the display device is owned by a particular application
      * and that no other application should be able to interact with it.
+     * Should typically be used together with {@link #FLAG_OWN_CONTENT_ONLY}.
      */
     public static final int FLAG_PRIVATE = 1 << 4;
 
@@ -78,6 +79,12 @@ final class DisplayDeviceInfo {
     public static final int FLAG_PRESENTATION = 1 << 6;
 
     /**
+     * Flag: Only show this display's own content; do not mirror
+     * the content of another display.
+     */
+    public static final int FLAG_OWN_CONTENT_ONLY = 1 << 7;
+
+    /**
      * Touch attachment: Display does not receive touch.
      */
     public static final int TOUCH_NONE = 0;
@@ -297,6 +304,9 @@ final class DisplayDeviceInfo {
         if ((flags & FLAG_PRESENTATION) != 0) {
             msg.append(", FLAG_PRESENTATION");
         }
+        if ((flags & FLAG_OWN_CONTENT_ONLY) != 0) {
+            msg.append(", FLAG_OWN_CONTENT_ONLY");
+        }
         return msg.toString();
     }
 }
diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index 73040d5..073e24a 100644
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -1024,13 +1024,13 @@ public final class DisplayManagerService extends IDisplayManager.Stub {
     }
 
     private void configureDisplayInTransactionLocked(DisplayDevice device) {
-        DisplayDeviceInfo info = device.getDisplayDeviceInfoLocked();
-        boolean isPrivate = (info.flags & DisplayDeviceInfo.FLAG_PRIVATE) != 0;
+        final DisplayDeviceInfo info = device.getDisplayDeviceInfoLocked();
+        final boolean ownContent = (info.flags & DisplayDeviceInfo.FLAG_OWN_CONTENT_ONLY) != 0;
 
         // Find the logical display that the display device is showing.
-        // Private displays never mirror other displays.
+        // Certain displays only ever show their own content.
         LogicalDisplay display = findLogicalDisplayForDeviceLocked(device);
-        if (!isPrivate) {
+        if (!ownContent) {
             if (display != null && !display.hasContentLocked()) {
                 // If the display does not have any content of its own, then
                 // automatically mirror the default logical display contents.
diff --git a/services/core/java/com/android/server/display/VirtualDisplayAdapter.java b/services/core/java/com/android/server/display/VirtualDisplayAdapter.java
index 46d473c..95ca0d2 100644
--- a/services/core/java/com/android/server/display/VirtualDisplayAdapter.java
+++ b/services/core/java/com/android/server/display/VirtualDisplayAdapter.java
@@ -157,8 +157,11 @@ final class VirtualDisplayAdapter extends DisplayAdapter {
                 mInfo.yDpi = mDensityDpi;
                 mInfo.flags = 0;
                 if ((mFlags & DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC) == 0) {
-                    mInfo.flags |= DisplayDeviceInfo.FLAG_PRIVATE |
-                            DisplayDeviceInfo.FLAG_NEVER_BLANK;
+                    mInfo.flags |= DisplayDeviceInfo.FLAG_PRIVATE
+                            | DisplayDeviceInfo.FLAG_NEVER_BLANK
+                            | DisplayDeviceInfo.FLAG_OWN_CONTENT_ONLY;
+                } else if ((mFlags & DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY) != 0) {
+                    mInfo.flags |= DisplayDeviceInfo.FLAG_OWN_CONTENT_ONLY;
                 }
                 if ((mFlags & DisplayManager.VIRTUAL_DISPLAY_FLAG_SECURE) != 0) {
                     mInfo.flags |= DisplayDeviceInfo.FLAG_SECURE;
-- 
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