author | darcy |
Tue, 14 Jan 2014 23:10:41 -0800 | |
changeset 22281 | 830790e8640d |
parent 16734 | da1901d79073 |
child 22584 | eed64ee05369 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package java.awt.datatransfer; |
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import java.io.*; |
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/** |
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* A <code>Transferable</code> which implements the capability required |
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* to transfer a <code>String</code>. |
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* |
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* This <code>Transferable</code> properly supports |
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* <code>DataFlavor.stringFlavor</code> |
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* and all equivalent flavors. Support for |
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* <code>DataFlavor.plainTextFlavor</code> |
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* and all equivalent flavors is <b>deprecated</b>. No other |
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* <code>DataFlavor</code>s are supported. |
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* |
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* @see java.awt.datatransfer.DataFlavor#stringFlavor |
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* @see java.awt.datatransfer.DataFlavor#plainTextFlavor |
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*/ |
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public class StringSelection implements Transferable, ClipboardOwner { |
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private static final int STRING = 0; |
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private static final int PLAIN_TEXT = 1; |
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private static final DataFlavor[] flavors = { |
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DataFlavor.stringFlavor, |
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DataFlavor.plainTextFlavor // deprecated |
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}; |
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private String data; |
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/** |
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* Creates a <code>Transferable</code> capable of transferring |
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* the specified <code>String</code>. |
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* @param data the string to be transferred |
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*/ |
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public StringSelection(String data) { |
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this.data = data; |
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} |
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/** |
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* Returns an array of flavors in which this <code>Transferable</code> |
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* can provide the data. <code>DataFlavor.stringFlavor</code> |
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* is properly supported. |
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* Support for <code>DataFlavor.plainTextFlavor</code> is |
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* <b>deprecated</b>. |
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* |
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* @return an array of length two, whose elements are <code>DataFlavor. |
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* stringFlavor</code> and <code>DataFlavor.plainTextFlavor</code> |
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*/ |
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public DataFlavor[] getTransferDataFlavors() { |
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// returning flavors itself would allow client code to modify |
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// our internal behavior |
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return (DataFlavor[])flavors.clone(); |
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} |
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/** |
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* Returns whether the requested flavor is supported by this |
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* <code>Transferable</code>. |
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* |
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* @param flavor the requested flavor for the data |
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* @return true if <code>flavor</code> is equal to |
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* <code>DataFlavor.stringFlavor</code> or |
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* <code>DataFlavor.plainTextFlavor</code>; false if <code>flavor</code> |
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* is not one of the above flavors |
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* @throws NullPointerException if flavor is <code>null</code> |
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*/ |
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public boolean isDataFlavorSupported(DataFlavor flavor) { |
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// JCK Test StringSelection0003: if 'flavor' is null, throw NPE |
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for (int i = 0; i < flavors.length; i++) { |
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if (flavor.equals(flavors[i])) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Returns the <code>Transferable</code>'s data in the requested |
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* <code>DataFlavor</code> if possible. If the desired flavor is |
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* <code>DataFlavor.stringFlavor</code>, or an equivalent flavor, |
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* the <code>String</code> representing the selection is |
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* returned. If the desired flavor is |
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* <code>DataFlavor.plainTextFlavor</code>, |
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* or an equivalent flavor, a <code>Reader</code> is returned. |
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* <b>Note:</b> The behavior of this method for |
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* <code>DataFlavor.plainTextFlavor</code> |
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* and equivalent <code>DataFlavor</code>s is inconsistent with the |
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* definition of <code>DataFlavor.plainTextFlavor</code>. |
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* |
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* @param flavor the requested flavor for the data |
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* @return the data in the requested flavor, as outlined above |
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* @throws UnsupportedFlavorException if the requested data flavor is |
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* not equivalent to either <code>DataFlavor.stringFlavor</code> |
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* or <code>DataFlavor.plainTextFlavor</code> |
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* @throws IOException if an IOException occurs while retrieving the data. |
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* By default, StringSelection never throws this exception, but a |
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* subclass may. |
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* @throws NullPointerException if flavor is <code>null</code> |
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* @see java.io.Reader |
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*/ |
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public Object getTransferData(DataFlavor flavor) |
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throws UnsupportedFlavorException, IOException |
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{ |
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// JCK Test StringSelection0007: if 'flavor' is null, throw NPE |
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if (flavor.equals(flavors[STRING])) { |
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return (Object)data; |
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} else if (flavor.equals(flavors[PLAIN_TEXT])) { |
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return new StringReader(data == null ? "" : data); |
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} else { |
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throw new UnsupportedFlavorException(flavor); |
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} |
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} |
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public void lostOwnership(Clipboard clipboard, Transferable contents) { |
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} |
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} |