am b774e554: Optimize fp touch to wake: Shortcut for report next draw

* commit 'b774e554f32fd65cac30b43d1cf679403ef4af82':
  Optimize fp touch to wake: Shortcut for report next draw

core/java/android/view/ViewRootImpl.java

@@ -6621,6 +6621,19 @@ public final class ViewRootImpl implements ViewParent,
         return false;
     }
 
+    /**
+     * Force the window to report its next draw.
+     * <p>
+     * This method is only supposed to be used to speed up the interaction from SystemUI and window
+     * manager when waiting for the first frame to be drawn when turning on the screen. DO NOT USE
+     * unless you fully understand this interaction.
+     * @hide
+     */
+    public void setReportNextDraw() {
+        mReportNextDraw = true;
+        invalidate();
+    }
+
     void changeCanvasOpacity(boolean opaque) {
         Log.d(TAG, "changeCanvasOpacity: opaque=" + opaque);
         if (mAttachInfo.mHardwareRenderer != null) {

packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java

@@ -1445,6 +1445,15 @@ public class KeyguardViewMediator extends SystemUI {
             }
             mHiding = false;
 
+            if (mWakeAndUnlocking && mDrawnCallback != null) {
+
+                // Hack level over 9000: To speed up wake-and-unlock sequence, force it to report
+                // the next draw from here so we don't have to wait for window manager to signal
+                // this to our ViewRootImpl.
+                mStatusBarKeyguardViewManager.getViewRootImpl().setReportNextDraw();
+                notifyDrawn(mDrawnCallback);
+            }
+
             // only play "unlock" noises if not on a call (since the incall UI
             // disables the keyguard)
             if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) {
@@ -1458,9 +1467,6 @@ public class KeyguardViewMediator extends SystemUI {
             updateActivityLockScreenState();
             adjustStatusBarLocked();
             sendUserPresentBroadcast();
-            if (mWakeAndUnlocking && mDrawnCallback != null) {
-                notifyDrawn(mDrawnCallback);
-            }
         }
     }
 

packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java

@@ -24,6 +24,7 @@ import android.os.Trace;
 import android.view.KeyEvent;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.ViewRootImpl;
 import android.view.WindowManagerGlobal;
 
 import com.android.internal.widget.LockPatternUtils;
@@ -533,4 +534,8 @@ public class StatusBarKeyguardViewManager {
     public void showBouncerMessage(String message, int color) {
         mBouncer.showMessage(message, color);
     }
+
+    public ViewRootImpl getViewRootImpl() {
+        return mPhoneStatusBar.getStatusBarView().getViewRootImpl();
+    }
 }