| /* |
| * Copyright (c) 2003, 2014, 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 |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.awt.X11; |
| |
| import java.awt.dnd.DnDConstants; |
| |
| import java.nio.ByteOrder; |
| |
| import java.util.Arrays; |
| |
| import jdk.internal.misc.Unsafe; |
| |
| /** |
| * Motif DnD protocol global constants and convenience routines. |
| * |
| * @since 1.5 |
| */ |
| class MotifDnDConstants { |
| // utility class can not be instantiated |
| private MotifDnDConstants() {} |
| // Note that offsets in all native structures below do not depend on the |
| // architecture. |
| private static final Unsafe unsafe = XlibWrapper.unsafe; |
| static final XAtom XA_MOTIF_ATOM_0 = XAtom.get("_MOTIF_ATOM_0"); |
| static final XAtom XA_MOTIF_DRAG_WINDOW = XAtom.get("_MOTIF_DRAG_WINDOW"); |
| static final XAtom XA_MOTIF_DRAG_TARGETS = XAtom.get("_MOTIF_DRAG_TARGETS"); |
| static final XAtom XA_MOTIF_DRAG_INITIATOR_INFO = |
| XAtom.get("_MOTIF_DRAG_INITIATOR_INFO"); |
| static final XAtom XA_MOTIF_DRAG_RECEIVER_INFO = |
| XAtom.get("_MOTIF_DRAG_RECEIVER_INFO"); |
| static final XAtom XA_MOTIF_DRAG_AND_DROP_MESSAGE = |
| XAtom.get("_MOTIF_DRAG_AND_DROP_MESSAGE"); |
| static final XAtom XA_XmTRANSFER_SUCCESS = |
| XAtom.get("XmTRANSFER_SUCCESS"); |
| static final XAtom XA_XmTRANSFER_FAILURE = |
| XAtom.get("XmTRANSFER_FAILURE"); |
| static final XSelection MotifDnDSelection = new XSelection(XA_MOTIF_ATOM_0); |
| |
| public static final byte MOTIF_DND_PROTOCOL_VERSION = 0; |
| |
| /* Supported protocol styles */ |
| public static final int MOTIF_PREFER_PREREGISTER_STYLE = 2; |
| public static final int MOTIF_PREFER_DYNAMIC_STYLE = 4; |
| public static final int MOTIF_DYNAMIC_STYLE = 5; |
| public static final int MOTIF_PREFER_RECEIVER_STYLE = 6; |
| |
| /* Info structure sizes */ |
| public static final int MOTIF_INITIATOR_INFO_SIZE = 8; |
| public static final int MOTIF_RECEIVER_INFO_SIZE = 16; |
| |
| /* Sender/reason message masks */ |
| public static final byte MOTIF_MESSAGE_REASON_MASK = (byte)0x7F; |
| public static final byte MOTIF_MESSAGE_SENDER_MASK = (byte)0x80; |
| public static final byte MOTIF_MESSAGE_FROM_RECEIVER = (byte)0x80; |
| public static final byte MOTIF_MESSAGE_FROM_INITIATOR = (byte)0; |
| |
| /* Message flags masks and shifts */ |
| public static final int MOTIF_DND_ACTION_MASK = 0x000F; |
| public static final int MOTIF_DND_ACTION_SHIFT = 0; |
| public static final int MOTIF_DND_STATUS_MASK = 0x00F0; |
| public static final int MOTIF_DND_STATUS_SHIFT = 4; |
| public static final int MOTIF_DND_ACTIONS_MASK = 0x0F00; |
| public static final int MOTIF_DND_ACTIONS_SHIFT = 8; |
| |
| /* message type constants */ |
| public static final byte TOP_LEVEL_ENTER = 0; |
| public static final byte TOP_LEVEL_LEAVE = 1; |
| public static final byte DRAG_MOTION = 2; |
| public static final byte DROP_SITE_ENTER = 3; |
| public static final byte DROP_SITE_LEAVE = 4; |
| public static final byte DROP_START = 5; |
| public static final byte DROP_FINISH = 6; |
| public static final byte DRAG_DROP_FINISH = 7; |
| public static final byte OPERATION_CHANGED = 8; |
| |
| /* drop action constants */ |
| public static final int MOTIF_DND_NOOP = 0; |
| public static final int MOTIF_DND_MOVE = 1 << 0; |
| public static final int MOTIF_DND_COPY = 1 << 1; |
| public static final int MOTIF_DND_LINK = 1 << 2; |
| |
| /* drop site status constants */ |
| public static final byte MOTIF_NO_DROP_SITE = (byte)1; |
| public static final byte MOTIF_INVALID_DROP_SITE = (byte)2; |
| public static final byte MOTIF_VALID_DROP_SITE = (byte)3; |
| |
| private static long readMotifWindow() throws XException { |
| long defaultScreenNumber = XlibWrapper.DefaultScreen(XToolkit.getDisplay()); |
| long defaultRootWindow = |
| XlibWrapper.RootWindow(XToolkit.getDisplay(), defaultScreenNumber); |
| |
| long motifWindow = 0; |
| |
| WindowPropertyGetter wpg = new WindowPropertyGetter(defaultRootWindow, |
| XA_MOTIF_DRAG_WINDOW, |
| 0, 1, |
| false, |
| XConstants.AnyPropertyType); |
| try { |
| int status = wpg.execute(XErrorHandler.IgnoreBadWindowHandler.getInstance()); |
| |
| if (status == XConstants.Success && |
| wpg.getData() != 0 && |
| wpg.getActualType() == XAtom.XA_WINDOW && |
| wpg.getActualFormat() == 32 && |
| wpg.getNumberOfItems() == 1) { |
| long data = wpg.getData(); |
| // XID is CARD32. |
| motifWindow = Native.getLong(data); |
| } |
| |
| return motifWindow; |
| } finally { |
| wpg.dispose(); |
| } |
| } |
| |
| private static long createMotifWindow() throws XException { |
| assert XToolkit.isAWTLockHeldByCurrentThread(); |
| |
| long defaultScreenNumber = |
| XlibWrapper.DefaultScreen(XToolkit.getDisplay()); |
| long defaultRootWindow = |
| XlibWrapper.RootWindow(XToolkit.getDisplay(), defaultScreenNumber); |
| |
| long motifWindow = 0; |
| |
| long displayString = XlibWrapper.XDisplayString(XToolkit.getDisplay()); |
| |
| if (displayString == 0) { |
| throw new XException("XDisplayString returns NULL"); |
| } |
| |
| long newDisplay = XlibWrapper.XOpenDisplay(displayString); |
| |
| if (newDisplay == 0) { |
| throw new XException("XOpenDisplay returns NULL"); |
| } |
| |
| XlibWrapper.XGrabServer(newDisplay); |
| |
| try { |
| XlibWrapper.XSetCloseDownMode(newDisplay, XConstants.RetainPermanent); |
| |
| XSetWindowAttributes xwa = new XSetWindowAttributes(); |
| |
| try { |
| xwa.set_override_redirect(true); |
| xwa.set_event_mask(XConstants.PropertyChangeMask); |
| |
| motifWindow = XlibWrapper.XCreateWindow(newDisplay, defaultRootWindow, |
| -10, -10, 1, 1, 0, 0, |
| XConstants.InputOnly, |
| XConstants.CopyFromParent, |
| (XConstants.CWOverrideRedirect | |
| XConstants.CWEventMask), |
| xwa.pData); |
| |
| if (motifWindow == 0) { |
| throw new XException("XCreateWindow returns NULL"); |
| } |
| |
| XlibWrapper.XMapWindow(newDisplay, motifWindow); |
| |
| long data = Native.allocateLongArray(1); |
| |
| try { |
| Native.putLong(data, motifWindow); |
| |
| XErrorHandlerUtil.WITH_XERROR_HANDLER(XErrorHandler.VerifyChangePropertyHandler.getInstance()); |
| XlibWrapper.XChangeProperty(XToolkit.getDisplay(), |
| defaultRootWindow, |
| XA_MOTIF_DRAG_WINDOW.getAtom(), |
| XAtom.XA_WINDOW, 32, |
| XConstants.PropModeReplace, |
| data, 1); |
| |
| XErrorHandlerUtil.RESTORE_XERROR_HANDLER(); |
| |
| if ((XErrorHandlerUtil.saved_error != null) && |
| (XErrorHandlerUtil.saved_error.get_error_code() != XConstants.Success)) { |
| throw new XException("Cannot write motif drag window handle."); |
| } |
| |
| return motifWindow; |
| } finally { |
| unsafe.freeMemory(data); |
| } |
| } finally { |
| xwa.dispose(); |
| } |
| } finally { |
| XlibWrapper.XUngrabServer(newDisplay); |
| XlibWrapper.XCloseDisplay(newDisplay); |
| } |
| } |
| |
| private static long getMotifWindow() throws XException { |
| /* |
| * Note: it is unsafe to cache the motif drag window handle, as another |
| * client can change the _MOTIF_DRAG_WINDOW property on the root, the handle |
| * becomes out-of-sync and all subsequent drag operations will fail. |
| */ |
| long motifWindow = readMotifWindow(); |
| if (motifWindow == 0) { |
| motifWindow = createMotifWindow(); |
| } |
| return motifWindow; |
| } |
| |
| public static final class Swapper { |
| // utility class can not be instantiated |
| private Swapper() {} |
| |
| public static short swap(short s) { |
| return (short)(((s & 0xFF00) >>> 8) | ((s & 0xFF) << 8)); |
| } |
| public static int swap(int i) { |
| return ((i & 0xFF000000) >>> 24) | ((i & 0x00FF0000) >>> 8) | |
| ((i & 0x0000FF00) << 8) | ((i & 0x000000FF) << 24); |
| } |
| |
| public static short getShort(long data, byte order) { |
| short s = unsafe.getShort(data); |
| if (order != MotifDnDConstants.getByteOrderByte()) { |
| return swap(s); |
| } else { |
| return s; |
| } |
| } |
| public static int getInt(long data, byte order) { |
| int i = unsafe.getInt(data); |
| if (order != MotifDnDConstants.getByteOrderByte()) { |
| return swap(i); |
| } else { |
| return i; |
| } |
| } |
| } |
| |
| /** |
| * DragBSI.h: |
| * |
| * typedef struct { |
| * BYTE byte_order; |
| * BYTE protocol_version; |
| * CARD16 num_target_lists B16; |
| * CARD32 heap_offset B32; |
| * } xmMotifTargetsPropertyRec; |
| */ |
| private static long[][] getTargetListTable(long motifWindow) |
| throws XException { |
| |
| WindowPropertyGetter wpg = new WindowPropertyGetter(motifWindow, |
| XA_MOTIF_DRAG_TARGETS, |
| 0, 100000L, |
| false, |
| XA_MOTIF_DRAG_TARGETS.getAtom()); |
| try { |
| int status = wpg.execute(XErrorHandler.IgnoreBadWindowHandler.getInstance()); |
| |
| if (status != XConstants.Success |
| || wpg.getActualType() != XA_MOTIF_DRAG_TARGETS.getAtom() |
| || wpg.getData() == 0) { |
| |
| return null; |
| } |
| |
| long data = wpg.getData(); |
| |
| if (unsafe.getByte(data + 1) != MOTIF_DND_PROTOCOL_VERSION) { |
| return null; |
| } |
| |
| boolean swapNeeded = unsafe.getByte(data + 0) != getByteOrderByte(); |
| |
| short numTargetLists = unsafe.getShort(data + 2); |
| |
| if (swapNeeded) { |
| numTargetLists = Swapper.swap(numTargetLists); |
| } |
| |
| long[][] table = new long[numTargetLists][]; |
| ByteOrder byteOrder = ByteOrder.nativeOrder(); |
| if (swapNeeded) { |
| byteOrder = (byteOrder == ByteOrder.LITTLE_ENDIAN) ? |
| ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN; |
| } |
| |
| long bufptr = data + 8; |
| for (short i = 0; i < numTargetLists; i++) { |
| short numTargets = unsafe.getShort(bufptr); |
| bufptr += 2; |
| if (swapNeeded) { |
| numTargets = Swapper.swap(numTargets); |
| } |
| |
| table[i] = new long[numTargets]; |
| |
| for (short j = 0; j < numTargets; j++) { |
| // NOTE: cannot use Unsafe.getInt(), since it crashes on |
| // Solaris/Sparc if the address is not a multiple of 4. |
| int target = 0; |
| if (byteOrder == ByteOrder.LITTLE_ENDIAN) { |
| for (int idx = 0; idx < 4; idx++) { |
| target |= (unsafe.getByte(bufptr + idx) << 8*idx) |
| & (0xFF << 8*idx); |
| } |
| } else { |
| for (int idx = 0; idx < 4; idx++) { |
| target |= (unsafe.getByte(bufptr + idx) << 8*(3-idx)) |
| & (0xFF << 8*(3-idx)); |
| } |
| } |
| // NOTE: don't need to swap, since we read it in the proper |
| // order already. |
| table[i][j] = target; |
| bufptr += 4; |
| } |
| } |
| return table; |
| } finally { |
| wpg.dispose(); |
| } |
| } |
| |
| private static void putTargetListTable(long motifWindow, long[][] table) |
| throws XException { |
| assert XToolkit.isAWTLockHeldByCurrentThread(); |
| |
| int tableSize = 8; /* The size of leading xmMotifTargetsPropertyRec. */ |
| |
| for (int i = 0; i < table.length; i++) { |
| tableSize += table[i].length * 4 + 2; |
| } |
| |
| long data = unsafe.allocateMemory(tableSize); |
| |
| try { |
| // BYTE byte_order; |
| unsafe.putByte(data + 0, getByteOrderByte()); |
| // BYTE protocol_version; |
| unsafe.putByte(data + 1, MOTIF_DND_PROTOCOL_VERSION); |
| // CARD16 num_target_lists B16; |
| unsafe.putShort(data + 2, (short)table.length); |
| // CARD32 heap_offset B32; |
| unsafe.putInt(data + 4, tableSize); |
| |
| long bufptr = data + 8; |
| |
| for (int i = 0; i < table.length; i++) { |
| unsafe.putShort(bufptr, (short)table[i].length); |
| bufptr += 2; |
| |
| for (int j = 0; j < table[i].length; j++) { |
| int target = (int)table[i][j]; |
| // NOTE: cannot use Unsafe.putInt(), since it crashes on |
| // Solaris/Sparc if the address is not a multiple of 4. |
| if (ByteOrder.nativeOrder() == ByteOrder.LITTLE_ENDIAN) { |
| for (int idx = 0; idx < 4; idx++) { |
| byte b = (byte)((target & (0xFF << (8*idx))) >> (8*idx)); |
| unsafe.putByte(bufptr + idx, b); |
| } |
| } else { |
| for (int idx = 0; idx < 4; idx++) { |
| byte b = (byte)((target & (0xFF << (8*idx))) >> (8*idx)); |
| unsafe.putByte(bufptr + (3-idx), b); |
| } |
| } |
| bufptr += 4; |
| } |
| } |
| |
| XErrorHandlerUtil.WITH_XERROR_HANDLER(XErrorHandler.VerifyChangePropertyHandler.getInstance()); |
| XlibWrapper.XChangeProperty(XToolkit.getDisplay(), |
| motifWindow, |
| XA_MOTIF_DRAG_TARGETS.getAtom(), |
| XA_MOTIF_DRAG_TARGETS.getAtom(), 8, |
| XConstants.PropModeReplace, |
| data, tableSize); |
| |
| XErrorHandlerUtil.RESTORE_XERROR_HANDLER(); |
| |
| if ((XErrorHandlerUtil.saved_error != null) && |
| (XErrorHandlerUtil.saved_error.get_error_code() != XConstants.Success)) { |
| |
| // Create a new motif window and retry. |
| motifWindow = createMotifWindow(); |
| |
| XErrorHandlerUtil.WITH_XERROR_HANDLER(XErrorHandler.VerifyChangePropertyHandler.getInstance()); |
| XlibWrapper.XChangeProperty(XToolkit.getDisplay(), |
| motifWindow, |
| XA_MOTIF_DRAG_TARGETS.getAtom(), |
| XA_MOTIF_DRAG_TARGETS.getAtom(), 8, |
| XConstants.PropModeReplace, |
| data, tableSize); |
| |
| XErrorHandlerUtil.RESTORE_XERROR_HANDLER(); |
| |
| if ((XErrorHandlerUtil.saved_error != null) && |
| (XErrorHandlerUtil.saved_error.get_error_code() != XConstants.Success)) { |
| throw new XException("Cannot write motif drag targets property."); |
| } |
| } |
| } finally { |
| unsafe.freeMemory(data); |
| } |
| } |
| |
| static int getIndexForTargetList(long[] formats) throws XException { |
| assert XToolkit.isAWTLockHeldByCurrentThread(); |
| |
| if (formats.length > 0) { |
| // Make a defensive copy. |
| formats = formats.clone(); |
| |
| Arrays.sort(formats); |
| } |
| |
| // NOTE: getMotifWindow() should never be called if the server is |
| // grabbed. This will lock up the application as it grabs the server |
| // itself. |
| // Since we don't grab the server before getMotifWindow(), another |
| // client might replace motif window after we read it from the root, but |
| // before we grab the server. |
| // We cannot resolve this problem, but we believe that this scenario is |
| // very unlikely to happen. |
| long motifWindow = getMotifWindow(); |
| |
| XlibWrapper.XGrabServer(XToolkit.getDisplay()); |
| |
| try { |
| long[][] table = getTargetListTable(motifWindow); |
| |
| if (table != null) { |
| for (int i = 0; i < table.length; i++) { |
| boolean equals = true; |
| if (table[i].length == formats.length) { |
| for (int j = 0; j < table[i].length; j++) { |
| if (table[i][j] != formats[j]) { |
| equals = false; |
| break; |
| } |
| } |
| } else { |
| equals = false; |
| } |
| |
| if (equals) { |
| XlibWrapper.XUngrabServer(XToolkit.getDisplay()); |
| return i; |
| } |
| } |
| } else { |
| // Create a new table. |
| // The first two entries must always be the same. |
| // (see DragBS.c) |
| table = new long[2][]; |
| table[0] = new long[] { 0 }; |
| table[1] = new long[] { XAtom.XA_STRING }; |
| } |
| |
| /* Index not found - expand the targets table. */ |
| long[][] new_table = new long[table.length + 1][]; |
| |
| /* Copy the old contents to the new table. */ |
| for (int i = 0; i < table.length; i++) { |
| new_table[i] = table[i]; |
| } |
| |
| /* Fill in the new entry */ |
| new_table[new_table.length - 1] = formats; |
| |
| putTargetListTable(motifWindow, new_table); |
| |
| return new_table.length - 1; |
| } finally { |
| XlibWrapper.XUngrabServer(XToolkit.getDisplay()); |
| } |
| } |
| |
| static long[] getTargetListForIndex(int index) { |
| long motifWindow = getMotifWindow(); |
| long[][] table = getTargetListTable(motifWindow); |
| |
| if (index < 0 || index >= table.length) { |
| return new long[0]; |
| } else { |
| return table[index]; |
| } |
| } |
| |
| static byte getByteOrderByte() { |
| // 'l' - for little endian, 'B' - for big endian. |
| return ByteOrder.nativeOrder() == ByteOrder.LITTLE_ENDIAN ? |
| (byte)0x6C : (byte)0x42; |
| } |
| |
| static void writeDragInitiatorInfoStruct(long window, int index) throws XException { |
| assert XToolkit.isAWTLockHeldByCurrentThread(); |
| |
| long structData = unsafe.allocateMemory(MOTIF_INITIATOR_INFO_SIZE); |
| |
| try { |
| // BYTE byte_order |
| unsafe.putByte(structData, getByteOrderByte()); |
| // BYTE protocol_version |
| unsafe.putByte(structData + 1, MOTIF_DND_PROTOCOL_VERSION); |
| // CARD16 protocol_version |
| unsafe.putShort(structData + 2, (short)index); |
| // CARD32 icc_handle |
| unsafe.putInt(structData + 4, (int)XA_MOTIF_ATOM_0.getAtom()); |
| |
| XErrorHandlerUtil.WITH_XERROR_HANDLER(XErrorHandler.VerifyChangePropertyHandler.getInstance()); |
| XlibWrapper.XChangeProperty(XToolkit.getDisplay(), window, |
| XA_MOTIF_ATOM_0.getAtom(), |
| XA_MOTIF_DRAG_INITIATOR_INFO.getAtom(), |
| 8, XConstants.PropModeReplace, |
| structData, MOTIF_INITIATOR_INFO_SIZE); |
| XErrorHandlerUtil.RESTORE_XERROR_HANDLER(); |
| |
| if ((XErrorHandlerUtil.saved_error != null) && |
| (XErrorHandlerUtil.saved_error.get_error_code() != XConstants.Success)) { |
| throw new XException("Cannot write drag initiator info"); |
| } |
| } finally { |
| unsafe.freeMemory(structData); |
| } |
| } |
| |
| static void writeDragReceiverInfoStruct(long window) throws XException { |
| assert XToolkit.isAWTLockHeldByCurrentThread(); |
| |
| int dataSize = MotifDnDConstants.MOTIF_RECEIVER_INFO_SIZE; |
| long data = unsafe.allocateMemory(dataSize); |
| |
| try { |
| unsafe.putByte(data, MotifDnDConstants.getByteOrderByte()); /* byte order */ |
| unsafe.putByte(data + 1, MotifDnDConstants.MOTIF_DND_PROTOCOL_VERSION); /* protocol version */ |
| unsafe.putByte(data + 2, (byte)MotifDnDConstants.MOTIF_DYNAMIC_STYLE); /* protocol style */ |
| unsafe.putByte(data + 3, (byte)0); /* pad */ |
| unsafe.putInt(data + 4, (int)window); /* proxy window */ |
| unsafe.putShort(data + 8, (short)0); /* num_drop_sites */ |
| unsafe.putShort(data + 10, (short)0); /* pad */ |
| unsafe.putInt(data + 12, dataSize); |
| |
| XErrorHandlerUtil.WITH_XERROR_HANDLER(XErrorHandler.VerifyChangePropertyHandler.getInstance()); |
| XlibWrapper.XChangeProperty(XToolkit.getDisplay(), window, |
| XA_MOTIF_DRAG_RECEIVER_INFO.getAtom(), |
| XA_MOTIF_DRAG_RECEIVER_INFO.getAtom(), |
| 8, XConstants.PropModeReplace, |
| data, dataSize); |
| XErrorHandlerUtil.RESTORE_XERROR_HANDLER(); |
| |
| if ((XErrorHandlerUtil.saved_error != null) && |
| (XErrorHandlerUtil.saved_error.get_error_code() != XConstants.Success)) { |
| throw new XException("Cannot write Motif receiver info property"); |
| } |
| } finally { |
| unsafe.freeMemory(data); |
| } |
| } |
| |
| public static int getMotifActionsForJavaActions(int javaActions) { |
| int motifActions = MOTIF_DND_NOOP; |
| |
| if ((javaActions & DnDConstants.ACTION_MOVE) != 0) { |
| motifActions |= MOTIF_DND_MOVE; |
| } |
| if ((javaActions & DnDConstants.ACTION_COPY) != 0) { |
| motifActions |= MOTIF_DND_COPY; |
| } |
| if ((javaActions & DnDConstants.ACTION_LINK) != 0) { |
| motifActions |= MOTIF_DND_LINK; |
| } |
| |
| return motifActions; |
| } |
| |
| public static int getJavaActionsForMotifActions(int motifActions) { |
| int javaActions = DnDConstants.ACTION_NONE; |
| |
| if ((motifActions & MOTIF_DND_MOVE) != 0) { |
| javaActions |= DnDConstants.ACTION_MOVE; |
| } |
| if ((motifActions & MOTIF_DND_COPY) != 0) { |
| javaActions |= DnDConstants.ACTION_COPY; |
| } |
| if ((motifActions & MOTIF_DND_LINK) != 0) { |
| javaActions |= DnDConstants.ACTION_LINK; |
| } |
| |
| return javaActions; |
| } |
| } |