1 /*

     2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package sun.awt.datatransfer;

    27 

    28 import sun.awt.AppContext;

    29 import sun.datatransfer.DesktopDatatransferService;

    30 

    31 import java.awt.EventQueue;

    32 import java.awt.datatransfer.DataFlavor;

    33 import java.awt.datatransfer.FlavorMap;

    34 import java.util.LinkedHashSet;

    35 import java.util.function.Supplier;

    36 

    37 /**

    38  * Provides desktop services to the datatransfer module according to

    39  * {@code DesktopDatatransferService} interface.

    40  *

    41  * @author Petr Pchelko

    42  * @since 1.9

    43  */

    44 public class DesktopDatatransferServiceImpl implements DesktopDatatransferService {

    45 

    46     private static final Object FLAVOR_MAP_KEY = new Object();

    47 

    48     @Override

    49     public void invokeOnEventThread(Runnable r) {

    50         EventQueue.invokeLater(r);

    51     }

    52 

    53     @Override

    54     public String getDefaultUnicodeEncoding() {

    55         DataTransferer dataTransferer = DataTransferer.getInstance();

    56         if (dataTransferer != null) {

    57             return dataTransferer.getDefaultUnicodeEncoding();

    58         }

    59         return null;

    60     }

    61 

    62     @Override

    63     public FlavorMap getFlavorMap(Supplier<FlavorMap> supplier) {

    64         AppContext context = AppContext.getAppContext();

    65         FlavorMap fm = (FlavorMap) context.get(FLAVOR_MAP_KEY);

    66         if (fm == null) {

    67             fm = supplier.get();

    68             context.put(FLAVOR_MAP_KEY, fm);

    69         }

    70         return fm;

    71     }

    72 

    73     @Override

    74     public boolean isDesktopPresent() {

    75         return true;

    76     }

    77 

    78     @Override

    79     public LinkedHashSet<DataFlavor> getPlatformMappingsForNative(String nat) {

    80         DataTransferer instance = DataTransferer.getInstance();

    81         return instance != null ? instance.getPlatformMappingsForNative(nat) : new LinkedHashSet<>();

    82     }

    83 

    84     @Override

    85     public LinkedHashSet<String> getPlatformMappingsForFlavor(DataFlavor df) {

    86         DataTransferer instance = DataTransferer.getInstance();

    87         return instance != null ? instance.getPlatformMappingsForFlavor(df) : new LinkedHashSet<>();

    88     }

    89 

    90     @Override

    91     public void registerTextFlavorProperties(String nat, String charset, String eoln, String terminators) {

    92         DataTransferer instance = DataTransferer.getInstance();

    93         if (instance != null) {

    94             instance.registerTextFlavorProperties(nat, charset, eoln, terminators);

    95         }

    96     }

    97 }