1 /* 2 * Copyright (c) 2012, 2013, 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 com.sun.glass.ui.lens; 27 28 import java.util.HashMap; 29 30 import com.sun.glass.ui.Clipboard; 31 import com.sun.glass.ui.SystemClipboard; 32 import com.sun.glass.ui.Application; 33 34 import sun.util.logging.PlatformLogger.Level; 35 36 final class LensDnDClipboard extends SystemClipboard { 37 38 public LensDnDClipboard() { 39 super(Clipboard.DND); 40 if (LensLogger.getLogger().isLoggable(Level.FINE)) { 41 LensLogger.getLogger().fine("constructor called"); 42 } 43 } 44 45 /** 46 * Should be called when drag operation completed by the 'system' 47 * 48 * @param action mask of actions from Clipboard 49 */ 50 public void actionPerformed(int action) { 51 if (LensLogger.getLogger().isLoggable(Level.FINE)) { 52 LensLogger.getLogger().fine("action = ["+ 53 Integer.toHexString(action)+"]"); 54 } 55 super.actionPerformed(action); 56 } 57 58 protected boolean isOwner() { 59 //called many time while the hovering over target node 60 //So reduced log level to finest in order to reduce log clutter 61 if (LensLogger.getLogger().isLoggable(Level.FINEST)) { 62 LensLogger.getLogger().finest("returns true"); 63 } 64 return true;//For DnD its always true 65 } 66 /** 67 * Here the magic happens. 68 * When this method is called all input events should be grabbed and 69 * appropriate drag notifications should be sent instead of regular input 70 * events 71 */ 72 protected void pushToSystem(HashMap<String, Object> cacheData, int supportedActions) { 73 if (LensLogger.getLogger().isLoggable(Level.FINE)) { 74 LensLogger.getLogger().fine("handling drag"); 75 } 76 77 if (LensLogger.getLogger().isLoggable(Level.FINER)) { 78 LensLogger.getLogger().finer("data =[cachedData = "+ cacheData+ 79 " supportedActions= "+Integer.toHexString(supportedActions)); 80 } 81 82 LensApplication lensApp = (LensApplication)Application.GetApplication(); 83 lensApp.notifyDragStart(); 84 85 if (LensLogger.getLogger().isLoggable(Level.FINE)) { 86 LensLogger.getLogger().fine("starting nested event loop"); 87 } 88 89 lensApp.enterDnDEventLoop(); 90 // The loop is exited in LensApplication.LensDragEvent.dispatch() 91 if (LensLogger.getLogger().isLoggable(Level.FINE)) { 92 LensLogger.getLogger().fine("nested event loop finished"); 93 LensLogger.getLogger().fine("Drag done - notifying actionPreformed"); 94 } 95 96 actionPerformed(Clipboard.ACTION_COPY_OR_MOVE); 97 } 98 99 100 101 102 //rest of the functionis should not be called. Only applicable for 103 //SystemClipboards 104 //Must be overrided thue as they are abstract functions 105 106 protected void pushTargetActionToSystem(int actionDone) { 107 LensLogger.getLogger().warning("Not supported"); 108 if (LensLogger.getLogger().isLoggable(Level.FINE)) { 109 LensLogger.getLogger().fine("actionDone = "+ 110 Integer.toHexString(actionDone)); 111 } 112 113 } 114 115 protected Object popFromSystem(String mimeType) { 116 LensLogger.getLogger().warning("Not supported"); 117 if (LensLogger.getLogger().isLoggable(Level.FINE)) { 118 LensLogger.getLogger().fine("mimeType="+mimeType); 119 } 120 return null; 121 } 122 protected int supportedSourceActionsFromSystem() { 123 LensLogger.getLogger().warning("Not supported"); 124 125 return Clipboard.ACTION_COPY_OR_MOVE; 126 } 127 128 protected String[] mimesFromSystem() { 129 LensLogger.getLogger().warning("Not supported"); 130 131 return null; 132 } 133 134 }