/*
* This file is modified by Ivan Maidanski <ivmai@ivmaisoft.com>
* Project name: JCGO-SUNAWT (http://www.ivmaisoft.com/jcgo/)
*/
/*
* @(#)Win32ShellFolder2.java 1.5 03/05/09
*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package sun.awt.shell;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.security.AccessController;
import java.util.*;
import sun.security.action.GetPropertyAction;
// NOTE: This class supersedes Win32ShellFolder, which will be removed from
// distribution after version 1.4.2. The old class can be used instead
// of this one by setting -Dswing.disableFileChooserSpeedFix=true
/**
* Win32 Shell Folders
* <P>
* <BR>
* There are two fundamental types of shell folders : file system folders
* and non-file system folders. File system folders are relatively easy
* to deal with. Non-file system folders are items such as My Computer,
* Network Neighborhood, and the desktop. Some of these non-file system
* folders have special values and properties.
* <P>
* <BR>
* Win32 keeps two basic data structures for shell folders. The first
* of these is called an ITEMIDLIST. Usually a pointer, called an
* LPITEMIDLIST, or more frequently just "PIDL". This structure holds
* a series of identifiers and can be either relative to the desktop
* (an absolute PIDL), or relative to the shell folder that contains them.
* Some Win32 functions can take absolute or relative PIDL values, and
* others can only accept relative values.
* <BR>
* The second data structure is an IShellFolder COM interface. Using
* this interface, one can enumerate the relative PIDLs in a shell
* folder, get attributes, etc.
* <BR>
* All Win32ShellFolder2 objects which are folder types (even non-file
* system folders) contain an IShellFolder object. Files are named in
* directories via relative PIDLs.
*
* @author Michael Martak
* @author Leif Samuelsson
* @author Kenneth Russell
* @since 1.4 */
final class Win32ShellFolder2 extends ShellFolder {
private static native void initIDs();
private static final boolean is98;
static {
String osName = System.getProperty("os.name");
is98 = (osName != null && osName.startsWith("Windows 98"));
initIDs();
}
// Win32 Shell Folder Constants
public static final int DESKTOP = 0x0000;
public static final int INTERNET = 0x0001;
public static final int PROGRAMS = 0x0002;
public static final int CONTROLS = 0x0003;
public static final int PRINTERS = 0x0004;
public static final int PERSONAL = 0x0005;
public static final int FAVORITES = 0x0006;
public static final int STARTUP = 0x0007;
public static final int RECENT = 0x0008;
public static final int SENDTO = 0x0009;
public static final int BITBUCKET = 0x000a;
public static final int STARTMENU = 0x000b;
public static final int DESKTOPDIRECTORY = 0x0010;
public static final int DRIVES = 0x0011;
public static final int NETWORK = 0x0012;
public static final int NETHOOD = 0x0013;
public static final int FONTS = 0x0014;
public static final int TEMPLATES = 0x0015;
public static final int COMMON_STARTMENU = 0x0016;
public static final int COMMON_PROGRAMS = 0X0017;
public static final int COMMON_STARTUP = 0x0018;
public static final int COMMON_DESKTOPDIRECTORY = 0x0019;
public static final int APPDATA = 0x001a;
public static final int PRINTHOOD = 0x001b;
public static final int ALTSTARTUP = 0x001d;
public static final int COMMON_ALTSTARTUP = 0x001e;
public static final int COMMON_FAVORITES = 0x001f;
public static final int INTERNET_CACHE = 0x0020;
public static final int COOKIES = 0x0021;
public static final int HISTORY = 0x0022;
// Win32 shell folder attributes
public static final int ATTRIB_CANCOPY = 0x00000001;
public static final int ATTRIB_CANMOVE = 0x00000002;
public static final int ATTRIB_CANLINK = 0x00000004;
public static final int ATTRIB_CANRENAME = 0x00000010;
public static final int ATTRIB_CANDELETE = 0x00000020;
public static final int ATTRIB_HASPROPSHEET = 0x00000040;
public static final int ATTRIB_DROPTARGET = 0x00000100;
public static final int ATTRIB_LINK = 0x00010000;
public static final int ATTRIB_SHARE = 0x00020000;
public static final int ATTRIB_READONLY = 0x00040000;
public static final int ATTRIB_GHOSTED = 0x00080000;
public static final int ATTRIB_HIDDEN = 0x00080000;
public static final int ATTRIB_FILESYSANCESTOR = 0x10000000;
public static final int ATTRIB_FOLDER = 0x20000000;
public static final int ATTRIB_FILESYSTEM = 0x40000000;
public static final int ATTRIB_HASSUBFOLDER = 0x80000000;
public static final int ATTRIB_VALIDATE = 0x01000000;
public static final int ATTRIB_REMOVABLE = 0x02000000;
public static final int ATTRIB_COMPRESSED = 0x04000000;
public static final int ATTRIB_BROWSABLE = 0x08000000;
public static final int ATTRIB_NONENUMERATED = 0x00100000;
public static final int ATTRIB_NEWCONTENT = 0x00200000;
// IShellFolder::GetDisplayNameOf constants
public static final int SHGDN_NORMAL = 0;
public static final int SHGDN_INFOLDER = 1;
public static final int SHGDN_INCLUDE_NONFILESYS= 0x2000;
public static final int SHGDN_FORADDRESSBAR = 0x4000;
public static final int SHGDN_FORPARSING = 0x8000;
/*
* We keep track of shell folders through the IShellFolder
* interface of their parents plus their relative PIDL.
*/
private long pIShellFolder = 0;
private long relativePIDL = 0;
/*
* This is cached as a concession to getFolderType(), which needs
* an absolute PIDL.
*/
private long absolutePIDL = 0;
/*
* The following are for caching various shell folder properties.
*/
private long pIShellIcon = -1L;
private String folderType = null;
private String displayName = null;
private Image smallIcon = null;
private Image largeIcon = null;
/*
* The following is to identify the My Documents folder as being special
*/
private boolean isPersonal;
/**
* Create a non-file system special shell folder, such as the
* desktop or Network Neighborhood.
*/
Win32ShellFolder2(ShellFolder parent, int shellFolderType, boolean isSpecial/*ignored*/) throws IOException {
// Desktop is parent of DRIVES and NETWORK, not necessarily
// other special shell folders.
super(parent,
(getFileSystemPath(shellFolderType) == null)
? ("ShellFolder: 0x"+Integer.toHexString(shellFolderType)) : getFileSystemPath(shellFolderType));
if (shellFolderType == DESKTOP) {
initDesktop();
} else {
initSpecial(getDesktop().getIShellFolder(), shellFolderType);
}
}
/**
* Create a system shell folder
*/
Win32ShellFolder2(Win32ShellFolder2 parent, long pIShellFolder, long relativePIDL, String path) {
super(parent, (path != null) ? path : "ShellFolder: ");
this.pIShellFolder = pIShellFolder;
this.relativePIDL = relativePIDL;
}
/**
* Creates a shell folder with a parent and relative PIDL
*/
Win32ShellFolder2(Win32ShellFolder2 parent, long relativePIDL) {
super(parent, getFileSystemPath(parent.getIShellFolder(), relativePIDL));
this.relativePIDL = relativePIDL;
String absolutePath = getAbsolutePath();
}
// Initializes the desktop shell folder
private native void initDesktop();
// Initializes a special, non-file system shell folder
// from one of the above constants
private native void initSpecial(long desktopIShellFolder,
int shellFolderType);
/** Marks this folder as being the My Documents (Personal) folder */
public void setIsPersonal() {
isPersonal = true;
}
/**
* This method is implemented to make sure that no instances
* of <code>ShellFolder</code> are ever serialized. If <code>isFileSystem()</code> returns
* <code>true</code>, then the object is representable with an instance of
* <code>java.io.File</code> instead. If not, then the object depends
* on native PIDL state and should not be serialized.
*
* @returns a <code>java.io.File</code> replacement object. If the folder
* is a not a normal directory, then returns the first non-removable
* drive (normally "C:\").
*/
protected Object writeReplace() throws java.io.ObjectStreamException {
if (isFileSystem()) {
return new File(getPath());
} else {
Win32ShellFolder2 drives = Win32ShellFolderManager2.getDrives();
if (drives != null) {
File[] driveRoots = drives.listFiles();
if (driveRoots != null) {
for (int i = 0; i < driveRoots.length; i++) {
if (driveRoots[i] instanceof Win32ShellFolder2) {
Win32ShellFolder2 sf = (Win32ShellFolder2)driveRoots[i];
if (sf.isFileSystem() && !sf.hasAttribute(ATTRIB_REMOVABLE)) {
return new File(sf.getPath());
}
}
}
}
}
// Ouch, we have no hard drives. Return something "valid" anyway.
return new File("C:\\");
}
}
/**
* Finalizer to clean up any COM objects or PIDLs used by this object.
*/
protected void finalize() throws Throwable {
if (relativePIDL != 0) {
releasePIDL(relativePIDL);
relativePIDL = 0;
}
if (absolutePIDL != 0) {
releasePIDL(absolutePIDL);
absolutePIDL = 0;
}
if (pIShellFolder != 0) {
releaseIShellFolder(pIShellFolder);
pIShellFolder = 0;
}
}
// Given a (possibly multi-level) relative PIDL (with respect to
// the desktop, at least in all of the usage cases in this code),
// return a pointer to the next entry. Does not mutate the PIDL in
// any way. Returns 0 if the null terminator is reached.
// Needs to be accessible to Win32ShellFolderManager2
static native long getNextPIDLEntry(long pIDL);
// Given a (possibly multi-level) relative PIDL (with respect to
// the desktop, at least in all of the usage cases in this code),
// copy the first entry into a newly-allocated PIDL. Returns 0 if
// the PIDL is at the end of the list.
// Needs to be accessible to Win32ShellFolderManager2
static native long copyFirstPIDLEntry(long pIDL);
// Given a parent's absolute PIDL and our relative PIDL, build an absolute PIDL
private static native long combinePIDLs(long ppIDL, long pIDL);
// Release a PIDL object
// Needs to be accessible to Win32ShellFolderManager2
static native void releasePIDL(long pIDL);
// Release an IShellFolder object
private static native void releaseIShellFolder(long pIShellFolder);
/**
* Accessor for IShellFolder
*/
public long getIShellFolder() {
if (pIShellFolder == 0) {
/* assertion: isDirectory() && parent != null */
long parentIShellFolder = getParentIShellFolder();
if (parentIShellFolder == 0) {
throw new InternalError("Parent IShellFolder was null for " + getAbsolutePath());
}
// We are a directory with a parent and a relative PIDL.
// We want to bind to the parent so we get an IShellFolder instance associated with us.
pIShellFolder = bindToObject(parentIShellFolder, relativePIDL);
if (pIShellFolder == 0) {
throw new InternalError("Unable to bind " + getAbsolutePath() + " to parent");
}
}
return pIShellFolder;
}
/**
* Get the parent ShellFolder's IShellFolder interface
*/
public long getParentIShellFolder() {
Win32ShellFolder2 parent = (Win32ShellFolder2)getParentFile();
if (parent == null) {
// Parent should only be null if this is the desktop, whose
// relativePIDL is relative to its own IShellFolder.
return getIShellFolder();
}
return parent.getIShellFolder();
}
/**
* Accessor for relative PIDL
*/
public long getRelativePIDL() {
if (relativePIDL == 0) {
throw new InternalError("Should always have a relative PIDL");
}
return relativePIDL;
}
private long getAbsolutePIDL() {
if (parent == null) {
// This is the desktop
return getRelativePIDL();
} else {
if (absolutePIDL == 0) {
absolutePIDL = combinePIDLs(((Win32ShellFolder2)parent).getAbsolutePIDL(), getRelativePIDL());
}
return absolutePIDL;
}
}
/**
* Helper function to return the desktop
*/
public Win32ShellFolder2 getDesktop() {
return Win32ShellFolderManager2.getDesktop();
}
/**
* Helper function to return the desktop IShellFolder interface
*/
public long getDesktopIShellFolder() {
return getDesktop().getIShellFolder();
}
private static boolean pathsEqual(String path1, String path2) {
// Same effective implementation as Win32FileSystem
return path1.equalsIgnoreCase(path2);
}
/**
* Check to see if two ShellFolder objects are the same
*/
public boolean equals(Object o) {
if (o == null || !(o instanceof Win32ShellFolder2)) {
// Short-circuit circuitous delegation path
if (!(o instanceof File)) {
return super.equals(o);
}
return pathsEqual(getPath(), ((File) o).getPath());
}
Win32ShellFolder2 rhs = (Win32ShellFolder2) o;
if ((parent == null && rhs.parent != null) ||
(parent != null && rhs.parent == null)) {
return false;
}
if (isFileSystem() && rhs.isFileSystem()) {
return pathsEqual(getPath(), rhs.getPath());
}
if (parent == null || parent == rhs.parent || parent.equals(rhs.parent)) {
return pidlsEqual(getParentIShellFolder(), relativePIDL, rhs.relativePIDL);
}
return false;
}
private static boolean pidlsEqual(long pIShellFolder, long pidl1, long pidl2) {
return (compareIDs(pIShellFolder, pidl1, pidl2) == 0);
}
private static native int compareIDs(long pParentIShellFolder, long pidl1, long pidl2);
/**
* @return Whether this is a file system shell folder
*/
public boolean isFileSystem() {
return hasAttribute(ATTRIB_FILESYSTEM);
}
/**
* Return whether the given attribute flag is set for this object
*/
public boolean hasAttribute(int attribute) {
// Caching at this point doesn't seem to be cost efficient
return (getAttributes0(getParentIShellFolder(), getRelativePIDL(), attribute) & attribute) != 0;
}
/**
* Returns the queried attributes specified in attrsMask.
*
* Could plausibly be used for attribute caching but have to be
* very careful not to touch network drives and file system roots
* with a full attrsMask
*/
private static native int getAttributes0(long pParentIShellFolder, long pIDL, int attrsMask);
// Return the path to the underlying file system object
private static String getFileSystemPath(long parentIShellFolder, long relativePIDL) {
return getDisplayNameOf(parentIShellFolder, relativePIDL, SHGDN_NORMAL | SHGDN_FORPARSING);
}
// Needs to be accessible to Win32ShellFolderManager2
static native String getFileSystemPath(int csidl) throws IOException;
private static native String getFileSystemPath(boolean dummy);
// Return whether the path is a network root.
// Path is assumed to be non-null
private static boolean isNetworkRoot(String path) {
return (path.equals("\\\\") || path.equals("\\") || path.equals("//") || path.equals("/"));
}
/**
* @return The parent shell folder of this shell folder, null if
* there is no parent
*/
public File getParentFile() {
return parent;
}
public boolean isDirectory() {
// Folders with SFGAO_BROWSABLE have "shell extension" handlers and are
// not traversable in JFileChooser. An exception is "My Documents" on
// Windows 98.
return ((hasAttribute(ATTRIB_HASSUBFOLDER) || hasAttribute(ATTRIB_FOLDER))
&& (!hasAttribute(ATTRIB_BROWSABLE) ||
(is98 && equals(Win32ShellFolderManager2.getPersonal()))));
}
/*
* Functions for enumerating an IShellFolder's children
*/
// Returns an IEnumIDList interface for an IShellFolder. The value
// returned must be released using releaseEnumObjects().
private long getEnumObjects(long pIShellFolder, boolean includeHiddenFiles) {
boolean isDesktop = (pIShellFolder == getDesktopIShellFolder());
return getEnumObjects(pIShellFolder, isDesktop, includeHiddenFiles);
}
// Returns an IEnumIDList interface for an IShellFolder. The value
// returned must be released using releaseEnumObjects().
private native long getEnumObjects(long pIShellFolder, boolean isDesktop,
boolean includeHiddenFiles);
// Returns the next sequential child as a relative PIDL
// from an IEnumIDList interface. The value returned must
// be released using releasePIDL().
private native long getNextChild(long pEnumObjects);
// Releases the IEnumIDList interface
private native void releaseEnumObjects(long pEnumObjects);
// Returns the IShellFolder of a child from a parent IShellFolder
// and a relative PIDL. The value returned must be released
// using releaseIShellFolder().
private static native long bindToObject(long parentIShellFolder, long pIDL);
/**
* @return An array of shell folders that are children of this shell folder
* object, null if this shell folder is empty.
*/
public File[] listFiles(boolean includeHiddenFiles) {
SecurityManager sm = System.getSecurityManager();
if (sm != null)
sm.checkRead(getPath());
if (!isDirectory())
return null;
if (isLink() && !hasAttribute(ATTRIB_FOLDER))
return new File[0];
Win32ShellFolder2 desktop = Win32ShellFolderManager2.getDesktop();
Win32ShellFolder2 personal = Win32ShellFolderManager2.getPersonal();
File[] children = null;
// If we are a directory, we have a parent and (at least) a
// relative PIDL. We must first ensure we are bound to the
// parent so we have an IShellFolder to query.
long pIShellFolder = getIShellFolder();
// Now we can enumerate the objects in this folder.
ArrayList list = new ArrayList();
long pEnumObjects = getEnumObjects(pIShellFolder, includeHiddenFiles);
if (pEnumObjects != 0) {
long childPIDL = 0;
int testedAttrs = ATTRIB_FILESYSTEM | ATTRIB_FILESYSANCESTOR;
do {
if (Thread.currentThread().isInterrupted())
return new File[0];
childPIDL = getNextChild(pEnumObjects);
boolean flag1 = true;
if (childPIDL != 0 &&
(getAttributes0(pIShellFolder, childPIDL, testedAttrs) & testedAttrs) != 0) {
Win32ShellFolder2 childFolder = null;
if (this.equals(desktop)
&& personal != null
&& pidlsEqual(pIShellFolder, childPIDL, personal.relativePIDL)) {
childFolder = personal;
} else {
childFolder = new Win32ShellFolder2(this, childPIDL);
flag1 = false;
}
list.add(childFolder);
}
if (flag1)
releasePIDL(childPIDL);
} while (childPIDL != 0);
releaseEnumObjects(pEnumObjects);
}
return (ShellFolder[])list.toArray(new ShellFolder[list.size()]);
}
/**
* Look for (possibly special) child folder by it's path
*
* @return The child shellfolder, or null if not found.
*/
Win32ShellFolder2 getChildByPath(String filePath) {
long pIShellFolder = getIShellFolder();
long pEnumObjects = getEnumObjects(pIShellFolder, true);
Win32ShellFolder2 child = null;
long childPIDL = 0;
while ((childPIDL = getNextChild(pEnumObjects)) != 0) {
if (getAttributes0(pIShellFolder, childPIDL, ATTRIB_FILESYSTEM) != 0) {
String path = getFileSystemPath(pIShellFolder, childPIDL);
if (path != null && path.equalsIgnoreCase(filePath)) {
long childIShellFolder = bindToObject(pIShellFolder, childPIDL);
child = new Win32ShellFolder2(this, childIShellFolder, childPIDL, path);
break;
}
}
releasePIDL(childPIDL);
}
releaseEnumObjects(pEnumObjects);
return child;
}
/**
* @return Whether this shell folder is a link
*/
public boolean isLink() {
return hasAttribute(ATTRIB_LINK);
}
/**
* @return Whether this shell folder is marked as hidden
*/
public boolean isHidden() {
return hasAttribute(ATTRIB_HIDDEN);
}
// Return the link location of a shell folder
private native String getLinkLocation(long parentIShellFolder,
long relativePIDL);
/**
* @return The shell folder linked to by this shell folder, or null
* if this shell folder is not a link
*/
public ShellFolder getLinkLocation() throws FileNotFoundException {
if (!isLink()) {
return null;
}
String linkLocation = getLinkLocation(getParentIShellFolder(), getRelativePIDL());
if (linkLocation == null) {
return null;
}
return Win32ShellFolderManager2.createShellFolder((Win32ShellFolder2) parent, new File(linkLocation));
}
// Parse a display name into a PIDL relative to the current IShellFolder.
long parseDisplayName(String name) throws FileNotFoundException {
try {
return parseDisplayName0(getIShellFolder(), name);
} catch (IOException e) {
throw new FileNotFoundException("Could not find file " + name);
}
}
private static native long parseDisplayName0(long pIShellFolder, String name) throws IOException;
// Return the display name of a shell folder
private static native String getDisplayNameOf(long parentIShellFolder,
long relativePIDL,
int attrs);
/**
* @return The name used to display this shell folder
*/
public String getDisplayName() {
if (displayName == null) {
displayName = getDisplayNameOf(getParentIShellFolder(), getRelativePIDL(), SHGDN_NORMAL);
}
return displayName;
}
// Return the folder type of a shell folder
private static native String getFolderType(long pIDL);
/**
* @return The type of shell folder as a string
*/
public String getFolderType() {
if (folderType == null) {
folderType = getFolderType(getAbsolutePIDL());
}
return folderType;
}
// Return the executable type of a file system shell folder
private native String getExecutableType(byte[] path_bytes);
/**
* @return The executable type as a string
*/
public String getExecutableType() {
if (!isFileSystem()) {
return null;
}
return getExecutableType(getAbsolutePath().getBytes());
}
// Icons
private static Map smallSystemImages = new HashMap();
private static Map largeSystemImages = new HashMap();
private static Map smallLinkedSystemImages = new HashMap();
private static Map largeLinkedSystemImages = new HashMap();
private static native long getIShellIcon(long pIShellFolder);
private static native int getIconIndex(long parentIShellIcon, long relativePIDL);
// Return the icon of a file system shell folder in the form of an HICON
private static native long getIcon(String absolutePath, boolean getLargeIcon);
private static native long extractIcon(long parentIShellFolder, long relativePIDL,
boolean getLargeIcon);
// Return the bits from an HICON. This has a side effect of setting
// the imageHash variable for efficient caching / comparing.
private native int[] getIconBits(long hIcon, int iconSize);
// Dispose the HICON
private native void disposeIcon(long hIcon);
public static native int[] getFileChooserBitmapBits();
private long getIShellIcon() {
if (pIShellIcon == -1L) {
pIShellIcon = getIShellIcon(getIShellFolder());
}
return pIShellIcon;
}
static int[] fileChooserBitmapBits = null;
static Image[] fileChooserIcons = new Image[47];
static Image getFileChooserIcon(int i) {
if (fileChooserIcons[i] != null) {
return fileChooserIcons[i];
} else {
if (fileChooserBitmapBits == null) {
fileChooserBitmapBits = getFileChooserBitmapBits();
}
if (fileChooserBitmapBits != null) {
int nImages = fileChooserBitmapBits.length / (16*16);
int[] bitmapBits = new int[16 * 16];
for (int y = 0; y < 16; y++) {
for (int x = 0; x < 16; x++) {
bitmapBits[y * 16 + x] = fileChooserBitmapBits[y * (nImages * 16) + (i * 16) + x];
}
}
BufferedImage img = new BufferedImage(16, 16, BufferedImage.TYPE_INT_ARGB);
img.setRGB(0, 0, 16, 16, bitmapBits, 0, 16);
fileChooserIcons[i] = img;
}
}
return fileChooserIcons[i];
}
private Image makeIcon(long hIcon, boolean getLargeIcon) {
if (hIcon != 0L && hIcon != -1L) {
// Get the bits. This has the side effect of setting the imageHash value for this object.
int size = getLargeIcon ? 32 : 16;
int[] iconBits = getIconBits(hIcon, size);
if (iconBits != null) {
BufferedImage img = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);
img.setRGB(0, 0, size, size, iconBits, 0, size);
return img;
}
}
return null;
}
/**
* @return The icon image used to display this shell folder
*/
public Image getIcon(boolean getLargeIcon) {
Image icon = getLargeIcon ? largeIcon : smallIcon;
if (icon == null) {
long parentIShellIcon = (parent != null) ? ((Win32ShellFolder2)parent).getIShellIcon() : 0L;
long relativePIDL = getRelativePIDL();
if (isFileSystem()) {
// These are cached per type (using the index in the system image list)
int index = getIconIndex(parentIShellIcon, relativePIDL);
if (index > 0) {
Map imageCache;
if (isLink()) {
imageCache = getLargeIcon ? largeLinkedSystemImages : smallLinkedSystemImages;
} else {
imageCache = getLargeIcon ? largeSystemImages : smallSystemImages;
}
icon = (Image)imageCache.get(new Integer(index));
if (icon == null) {
long hIcon = getIcon(getAbsolutePath(), getLargeIcon);
icon = makeIcon(hIcon, getLargeIcon);
disposeIcon(hIcon);
if (icon != null) {
imageCache.put(new Integer(index), icon);
}
}
}
}
if (icon == null) {
// These are only cached per object
long hIcon = extractIcon(getParentIShellFolder(), getRelativePIDL(), getLargeIcon);
icon = makeIcon(hIcon, getLargeIcon);
disposeIcon(hIcon);
}
if (getLargeIcon) {
largeIcon = icon;
} else {
smallIcon = icon;
}
}
if (icon == null) {
icon = super.getIcon(getLargeIcon);
}
return icon;
}
/**
* Returns the canonical form of this abstract pathname. Equivalent to
* <code>new Win32ShellFolder2(getParentFile(), this.{@link java.io.File#getCanonicalPath}())</code>.
*
* @see java.io.File#getCanonicalFile
*/
public File getCanonicalFile() throws IOException {
return this;
}
private List topFolderList = null;
/*
* Indicates whether this is a special folder (includes My Documents)
*/
public boolean isSpecial() {
return isPersonal || !isFileSystem() || (this == getDesktop());
}
/**
* Compares this object with the specified object for order.
*
* @see sun.awt.shell.ShellFolder#compareTo(File)
*/
public int compareTo(File file2) {
if (!(file2 instanceof Win32ShellFolder2)) {
if (isFileSystem() && !isSpecial()) {
return super.compareTo(file2);
} else {
return -1; // Non-file shellfolders sort before files
}
}
return Win32ShellFolderManager2.compareShellFolders(this, (Win32ShellFolder2) file2);
}
}