| /******************************************************************************* |
| * 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 |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.internal.carbon.*; |
| import org.eclipse.swt.*; |
| |
| |
| /** |
| * Instances of this class allow the user to navigate |
| * the file system and select a directory. |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>(none)</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>(none)</dd> |
| * </dl> |
| * <p> |
| * IMPORTANT: This class is intended to be subclassed <em>only</em> |
| * within the SWT implementation. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#directorydialog">DirectoryDialog snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample, Dialog tab</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class DirectoryDialog extends Dialog { |
| String message = "", filterPath = ""; |
| |
| /** |
| * Constructs a new instance of this class given only its parent. |
| * |
| * @param parent a shell which will be the parent of the new instance |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| */ |
| public DirectoryDialog (Shell parent) { |
| this (parent, SWT.APPLICATION_MODAL); |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * and a style value describing its behavior and appearance. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a shell which will be the parent of the new instance |
| * @param style the style of dialog to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| */ |
| public DirectoryDialog (Shell parent, int style) { |
| super (parent, checkStyle (parent, style)); |
| checkSubclass (); |
| } |
| |
| /** |
| * Returns the path which the dialog will use to filter |
| * the directories it shows. |
| * |
| * @return the filter path |
| * |
| * @see #setFilterPath |
| */ |
| public String getFilterPath () { |
| return filterPath; |
| } |
| |
| /** |
| * Returns the dialog's message, which is a description of |
| * the purpose for which it was opened. This message will be |
| * visible on the dialog while it is open. |
| * |
| * @return the message |
| */ |
| public String getMessage () { |
| return message; |
| } |
| |
| /** |
| * Makes the dialog visible and brings it to the front |
| * of the display. |
| * |
| * @return a string describing the absolute path of the selected directory, |
| * or null if the dialog was cancelled or an error occurred |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li> |
| * </ul> |
| */ |
| public String open () { |
| String directoryPath = null; |
| int titlePtr = 0; |
| int messagePtr = 0; |
| if (title != null) { |
| char [] buffer = new char [title.length ()]; |
| title.getChars (0, buffer.length, buffer, 0); |
| titlePtr = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); |
| } |
| char [] buffer = new char [message.length ()]; |
| message.getChars (0, buffer.length, buffer, 0); |
| messagePtr = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); |
| |
| NavDialogCreationOptions options = new NavDialogCreationOptions (); |
| options.parentWindow = OS.GetControlOwner (parent.handle); |
| // NEEDS WORK - no title displayed |
| options.windowTitle = options.clientName = titlePtr; |
| options.optionFlags = OS.kNavSupportPackages | OS.kNavAllowOpenPackages | OS.kNavAllowInvisibleFiles; |
| options.message = messagePtr; |
| options.location_h = -1; |
| options.location_v = -1; |
| int [] outDialog = new int [1]; |
| // NEEDS WORK - use inFilterProc to handle filtering |
| if (OS.NavCreateChooseFolderDialog (options, 0, 0, 0, outDialog) == OS.noErr) { |
| if (filterPath != null && filterPath.length () > 0) { |
| char [] chars = new char [filterPath.length ()]; |
| filterPath.getChars (0, chars.length, chars, 0); |
| int str = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, chars, chars.length); |
| if (str != 0) { |
| int url = OS.CFURLCreateWithFileSystemPath (OS.kCFAllocatorDefault, str, OS.kCFURLPOSIXPathStyle, false); |
| if (url != 0) { |
| byte [] fsRef = new byte [80]; |
| if (OS.CFURLGetFSRef (url, fsRef)) { |
| AEDesc params = new AEDesc (); |
| if (OS.AECreateDesc (OS.typeFSRef, fsRef, fsRef.length, params) == OS.noErr) { |
| OS.NavCustomControl (outDialog [0], OS.kNavCtlSetLocation, params); |
| OS.AEDisposeDesc (params); |
| } |
| } |
| OS.CFRelease (url); |
| } |
| OS.CFRelease (str); |
| } |
| } |
| OS.NavDialogRun (outDialog [0]); |
| if (OS.NavDialogGetUserAction (outDialog [0]) == OS.kNavUserActionChoose) { |
| NavReplyRecord record = new NavReplyRecord (); |
| OS.NavDialogGetReply (outDialog [0], record); |
| AEDesc selection = new AEDesc (); |
| selection.descriptorType = record.selection_descriptorType; |
| selection.dataHandle = record.selection_dataHandle; |
| int [] count = new int [1]; |
| OS.AECountItems (selection, count); |
| if (count [0] > 0) { |
| int [] theAEKeyword = new int [1]; |
| int [] typeCode = new int [1]; |
| int maximumSize = 80; // size of FSRef |
| int dataPtr = OS.NewPtr (maximumSize); |
| int [] actualSize = new int [1]; |
| int status = OS.AEGetNthPtr (selection, 1, OS.typeFSRef, theAEKeyword, typeCode, dataPtr, maximumSize, actualSize); |
| if (status == OS.noErr && typeCode [0] == OS.typeFSRef) { |
| byte [] fsRef = new byte [actualSize [0]]; |
| OS.memmove (fsRef, dataPtr, actualSize [0]); |
| int dirUrl = OS.CFURLCreateFromFSRef (OS.kCFAllocatorDefault, fsRef); |
| int dirString = OS.CFURLCopyFileSystemPath(dirUrl, OS.kCFURLPOSIXPathStyle); |
| OS.CFRelease (dirUrl); |
| int length = OS.CFStringGetLength (dirString); |
| buffer= new char [length]; |
| CFRange range = new CFRange (); |
| range.length = length; |
| OS.CFStringGetCharacters (dirString, range, buffer); |
| OS.CFRelease (dirString); |
| filterPath = directoryPath = new String (buffer); |
| } |
| OS.DisposePtr (dataPtr); |
| } |
| } |
| } |
| if (titlePtr != 0) OS.CFRelease (titlePtr); |
| if (messagePtr != 0) OS.CFRelease (messagePtr); |
| if (outDialog [0] != 0) OS.NavDialogDispose (outDialog [0]); |
| return directoryPath; |
| } |
| |
| /** |
| * Sets the dialog's message, which is a description of |
| * the purpose for which it was opened. This message will be |
| * visible on the dialog while it is open. |
| * |
| * @param string the message |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * </ul> |
| */ |
| public void setMessage (String string) { |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| message = string; |
| } |
| |
| /** |
| * Sets the path that the dialog will use to filter |
| * the directories it shows to the argument, which may |
| * be null. If the string is null, then the operating |
| * system's default filter path will be used. |
| * <p> |
| * Note that the path string is platform dependent. |
| * For convenience, either '/' or '\' can be used |
| * as a path separator. |
| * </p> |
| * |
| * @param string the filter path |
| */ |
| public void setFilterPath (String string) { |
| filterPath = string; |
| } |
| } |