Mercurial > projects > dwt-mac
view dwt/dnd/FileTransfer.d @ 122:2e671fa40eec
Ported dwt.dnd, dwt.opengl, dwt.printing and dwt.program
author | Jacob Carlborg <doob@me.com> |
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date | Wed, 31 Dec 2008 21:01:13 +0100 |
parents | a2d82e6fd054 |
children |
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/******************************************************************************* * 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 * * Port to the D programming language: * Jacob Carlborg <doob@me.com> *******************************************************************************/ module dwt.dnd.FileTransfer; import dwt.dwthelper.utils; import dwt.internal.cocoa.NSArray; import dwt.internal.cocoa.NSMutableArray; import dwt.internal.cocoa.NSString; import dwt.internal.cocoa.OS; import dwt.dnd.ByteArrayTransfer; import dwt.dnd.DND; import dwt.dnd.TransferData; import dwt.internal.objc.cocoa.Cocoa; /** * 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 : ByteArrayTransfer { static FileTransfer _instance; static const String ID_NAME; static const int ID; static this () { _instance = new FileTransfer(); ID_NAME = OS.NSFilenamesPboardType.getString(); ID = registerType(ID_NAME); } this() {} /** * 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 = (cast(ArrayWrapperString2)object).array; NSUInteger length = files.length; NSMutableArray array = NSMutableArray.arrayWithCapacity(length); for (NSUInteger i = 0; i < length; i++) { String fileName = files[i]; NSString string = NSString.stringWith(fileName); array.addObject(string); } transferData.data = array; } /** * 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 is null) return null; NSArray array = cast(NSArray) transferData.data; if (array.count() is 0) return null; int count = cast(int)/*64*/array.count(); String[] fileNames = new String[count]; for (int i=0; i<count; i++) { NSString string = new NSString(array.objectAtIndex(i)); fileNames[i] = string.getString(); } return new ArrayWrapperString2(fileNames); } protected int[] getTypeIds(){ return [ID]; } protected String[] getTypeNames(){ return [ID_NAME]; } bool checkFile(Object object) { if (object is null || !(cast(ArrayWrapperString2)object) || (cast(ArrayWrapperString2)object).array.length is 0) return false; String[] strings = (cast(ArrayWrapperString2)object).array; for (int i = 0; i < strings.length; i++) { if (strings[i] is null || strings[i].length() is 0) return false; } return true; } protected bool validate(Object object) { return checkFile(object); } }