1 files changed, 197 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/FileTransfer.java b/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/FileTransfer.java
new file mode 100644
index 0000000000..be2dfed6c4
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/FileTransfer.java
@@ -0,0 +1,197 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Outhink - support for typeFileURL
+ *******************************************************************************/
+package org.eclipse.swt.dnd;
+
+import java.io.*;
+import org.eclipse.swt.internal.carbon.*;
+ 
+/**
+ * The class <code>FileTransfer</code> provides a platform specific mechanism 
+ * for converting a list of files represented as a java <code>String[]</code> to a 
+ * platform specific representation of the data and vice versa.  
+ * Each <code>String</code> in the array contains the absolute path for a single 
+ * file or directory.
+ * 
+ * <p>An example of a java <code>String[]</code> containing a list of files is shown 
+ * below:</p>
+ * 
+ * <code><pre>
+ *     File file1 = new File("C:\temp\file1");
+ *     File file2 = new File("C:\temp\file2");
+ *     String[] fileData = new String[2];
+ *     fileData[0] = file1.getAbsolutePath();
+ *     fileData[1] = file2.getAbsolutePath();
+ * </code></pre>
+ *
+ * @see Transfer
+ */
+public class FileTransfer extends ByteArrayTransfer {
+	
+	static FileTransfer _instance = new FileTransfer();
+	static final String HFS = "hfs "; //$NON-NLS-1$
+	static final String FURL = "furl"; //$NON-NLS-1$
+	static final int HFSID = registerType(HFS);
+	static final int FURLID = registerType(FURL);
+	
+FileTransfer() {}
+
+/**
+ * Returns the singleton instance of the FileTransfer class.
+ *
+ * @return the singleton instance of the FileTransfer class
+ */
+public static FileTransfer getInstance () {
+	return _instance;
+}
+
+/**
+ * This implementation of <code>javaToNative</code> converts a list of file names
+ * represented by a java <code>String[]</code> to a platform specific representation.
+ * Each <code>String</code> in the array contains the absolute path for a single 
+ * file or directory.
+ * 
+ * @param object a java <code>String[]</code> containing the file names to be converted
+ * @param transferData an empty <code>TransferData</code> object that will
+ *  	be filled in on return with the platform specific format of the data
+ * 
+ * @see Transfer#nativeToJava
+ */
+public void javaToNative(Object object, TransferData transferData) {
+	if (!checkFile(object) || !isSupportedType(transferData)) {
+		DND.error(DND.ERROR_INVALID_DATA);
+	}
+	String[] files = (String[])object;
+	transferData.result = -1;
+	byte[][] data = new byte[files.length][];
+	for (int i = 0; i < data.length; i++) {
+		File file = new File(files[i]);
+		boolean isDirectory = file.isDirectory();
+		String fileName = files[i];
+		char [] chars = new char [fileName.length ()];
+		fileName.getChars (0, chars.length, chars, 0);
+		int cfstring = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, chars, chars.length);
+		if (cfstring == 0) return;
+		try {
+			int url = OS.CFURLCreateWithFileSystemPath(OS.kCFAllocatorDefault, cfstring, OS.kCFURLPOSIXPathStyle, isDirectory);
+			if (url == 0) return;
+			try {
+				if (transferData.type == HFSID) {
+					byte[] fsRef = new byte[80];
+					if (!OS.CFURLGetFSRef(url, fsRef)) return;
+					byte[] fsSpec = new byte[70];
+					if (OS.FSGetCatalogInfo(fsRef, 0, null, null, fsSpec, null) != OS.noErr) return;
+					byte[] hfsflavor = new byte[10 + fsSpec.length];
+					byte[] finfo = new byte[16];
+					OS.FSpGetFInfo(fsSpec, finfo);
+					System.arraycopy(finfo, 0, hfsflavor, 0, 10);
+					System.arraycopy(fsSpec, 0, hfsflavor, 10, fsSpec.length);
+					data[i] = hfsflavor;
+				}
+				if (transferData.type == FURLID) {
+					int encoding = OS.CFStringGetSystemEncoding();
+					int theData = OS.CFURLCreateData(OS.kCFAllocatorDefault, url, encoding, true);
+					if (theData == 0) return;
+					try {
+						int length = OS.CFDataGetLength(theData);
+						byte[] buffer = new byte[length];
+						CFRange range = new CFRange();
+						range.length = length;
+						OS.CFDataGetBytes(theData, range, buffer);
+						data[i] = buffer;
+					} finally {
+						OS.CFRelease(theData);
+					}
+				}
+			} finally {
+				OS.CFRelease(url);
+			}
+		} finally {
+			OS.CFRelease(cfstring);
+		}
+	}
+	transferData.data = data;
+	transferData.result = 0;
+}
+/**
+ * This implementation of <code>nativeToJava</code> converts a platform specific 
+ * representation of a list of file names to a java <code>String[]</code>.  
+ * Each String in the array contains the absolute path for a single file or directory. 
+ * 
+ * @param transferData the platform specific representation of the data to be converted
+ * @return a java <code>String[]</code> containing a list of file names if the conversion
+ * 		was successful; otherwise null
+ * 
+ * @see Transfer#javaToNative
+ */
+public Object nativeToJava(TransferData transferData) {
+	if (!isSupportedType(transferData) || transferData.data == null) return null;
+	if (transferData.data.length == 0) return null;
+	int count = transferData.data.length;
+	String[] fileNames = new String[count];
+	for (int i=0; i<count; i++) {
+		byte[] data = transferData.data[i];
+		int url = 0;
+		if (transferData.type == HFSID) {
+			byte[] fsspec = new byte[data.length - 10];
+			System.arraycopy(data, 10, fsspec, 0, fsspec.length);
+			byte[] fsRef = new byte[80];
+			if (OS.FSpMakeFSRef(fsspec, fsRef) != OS.noErr) return null;
+			url = OS.CFURLCreateFromFSRef(OS.kCFAllocatorDefault, fsRef);
+			if (url == 0) return null;
+		}
+		if (transferData.type == FURLID) {
+			int encoding = OS.kCFStringEncodingUTF8;
+			url = OS.CFURLCreateWithBytes(OS.kCFAllocatorDefault, data, data.length, encoding, 0);
+			if (url == 0) return null;
+		}
+		try {
+			int path = OS.CFURLCopyFileSystemPath(url, OS.kCFURLPOSIXPathStyle);
+			if (path == 0) return null;
+			try {
+				int length = OS.CFStringGetLength(path);
+				if (length == 0) return null;
+				char[] buffer= new char[length];
+				CFRange range = new CFRange();
+				range.length = length;
+				OS.CFStringGetCharacters(path, range, buffer);
+				fileNames[i] = new String(buffer);
+			} finally {
+				OS.CFRelease(path);
+			}
+		} finally {
+			OS.CFRelease(url);
+		}
+	}
+	return fileNames;
+}
+
+protected int[] getTypeIds(){
+	return new int[] {FURLID, HFSID};
+}
+
+protected String[] getTypeNames(){
+	return new String[] {FURL, HFS};
+}
+
+boolean checkFile(Object object) {
+	if (object == null || !(object instanceof String[]) || ((String[])object).length == 0) return false;
+	String[] strings = (String[])object;
+	for (int i = 0; i < strings.length; i++) {
+		if (strings[i] == null || strings[i].length() == 0) return false;
+	}
+	return true;
+}
+
+protected boolean validate(Object object) {
+	return checkFile(object);
+}
+}