src/java.desktop/unix/classes/sun/awt/UNIXToolkit.java

*** 1,7 ****
  /*
!  * Copyright (c) 2004, 2015, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 2004, 2016, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 27,49 ****
--- 27,54 ----
  import java.awt.RenderingHints;
  import static java.awt.RenderingHints.*;
  import java.awt.color.ColorSpace;
  import java.awt.image.*;
  import java.security.AccessController;
+ import java.security.PrivilegedAction;
+ 
  import sun.security.action.GetIntegerAction;
  import com.sun.java.swing.plaf.gtk.GTKConstants.TextDirection;
  import sun.java2d.opengl.OGLRenderQueue;
+ import sun.security.action.GetPropertyAction;
  
  public abstract class UNIXToolkit extends SunToolkit
  {
      /** All calls into GTK should be synchronized on this lock */
      public static final Object GTK_LOCK = new Object();
  
      private static final int[] BAND_OFFSETS = { 0, 1, 2 };
      private static final int[] BAND_OFFSETS_ALPHA = { 0, 1, 2, 3 };
      private static final int DEFAULT_DATATRANSFER_TIMEOUT = 10000;
  
+     public enum GtkVersions {ANY, GTK1, GTK2, GTK3};
+ 
      private Boolean nativeGTKAvailable;
      private Boolean nativeGTKLoaded;
      private BufferedImage tmpImage = null;
  
      public static int getDatatransferTimeout() {
*** 77,87 ****
                  // We've already checked the availability of the native GTK
                  // libraries, so just return the status of that attempt.
                  return nativeGTKAvailable;
  
              } else {
!                 boolean success = check_gtk();
                  nativeGTKAvailable = success;
                  return success;
              }
          }
      }
--- 82,92 ----
                  // We've already checked the availability of the native GTK
                  // libraries, so just return the status of that attempt.
                  return nativeGTKAvailable;
  
              } else {
!                 boolean success = check_gtk(getEnabledGtkVersion().ordinal());
                  nativeGTKAvailable = success;
                  return success;
              }
          }
      }
*** 95,105 ****
       * lightweight boolean check, no native calls required).
       */
      public boolean loadGTK() {
          synchronized (GTK_LOCK) {
              if (nativeGTKLoaded == null) {
!                 nativeGTKLoaded = load_gtk();
              }
          }
          return nativeGTKLoaded;
      }
  
--- 100,111 ----
       * lightweight boolean check, no native calls required).
       */
      public boolean loadGTK() {
          synchronized (GTK_LOCK) {
              if (nativeGTKLoaded == null) {
!                 nativeGTKLoaded = load_gtk(getEnabledGtkVersion().ordinal(),
!                                                                 isGtkVerbose());
              }
          }
          return nativeGTKLoaded;
      }
  
*** 239,256 ****
          // Set the local image so we can return it later from
          // getStockIcon().
          tmpImage = new BufferedImage(colorModel, raster, false, null);
      }
  
!     private static native boolean check_gtk();
!     private static native boolean load_gtk();
      private static native boolean unload_gtk();
      private native boolean load_gtk_icon(String filename);
      private native boolean load_stock_icon(int widget_type, String stock_id,
              int iconSize, int textDirection, String detail);
  
      private native void nativeSync();
  
      @Override
      public void sync() {
          // flush the X11 buffer
          nativeSync();
--- 245,263 ----
          // Set the local image so we can return it later from
          // getStockIcon().
          tmpImage = new BufferedImage(colorModel, raster, false, null);
      }
  
!     private static native boolean check_gtk(int version);
!     private static native boolean load_gtk(int version, boolean verbose);
      private static native boolean unload_gtk();
      private native boolean load_gtk_icon(String filename);
      private native boolean load_stock_icon(int widget_type, String stock_id,
              int iconSize, int textDirection, String detail);
  
      private native void nativeSync();
+     private static native int get_gtk_version();
  
      @Override
      public void sync() {
          // flush the X11 buffer
          nativeSync();
*** 336,341 ****
--- 343,370 ----
          if (loadGTK()) {
              return gtkCheckVersionImpl(major, minor, micro);
          }
          return false;
      }
+ 
+     public static GtkVersions getEnabledGtkVersion() {
+         String version = AccessController.doPrivileged(
+                 new GetPropertyAction("jdk.gtk.version"));
+         if (version == null) {
+             return GtkVersions.ANY;
+         } else if (version.startsWith("2")) {
+             return GtkVersions.GTK2;
+         } else if("3".equals(version) ){
+             return GtkVersions.GTK3;
+         }
+         return GtkVersions.ANY;
+     }
+ 
+     public static GtkVersions getGtkVersion() {
+         return GtkVersions.values()[get_gtk_version()];
+     }
+ 
+     public static boolean isGtkVerbose() {
+         return AccessController.doPrivileged((PrivilegedAction<Boolean>)()
+                 -> Boolean.getBoolean("jdk.gtk.verbose"));
+     }
  }