Examples of sun.awt.shell.Win32ShellFolder2$ComTaskExecutor

sun.awt.shell.Win32ShellFolder2
Win32 Shell Folders

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.

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.
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.
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

    static Win32ShellFolder2 createShellFolderFromRelativePIDL(Win32ShellFolder2 parent, long pIDL) {
        // Walk down this relative pIDL, creating new nodes for each of the entries
        while (pIDL != 0) {
            long curPIDL = Win32ShellFolder2.copyFirstPIDLEntry(pIDL);
            if (curPIDL != 0) {
                parent = new Win32ShellFolder2(parent, curPIDL);
                pIDL = Win32ShellFolder2.getNextPIDLEntry(pIDL);
            } else {
                // The list is empty if the parent is Desktop and pIDL is a shortcut to Desktop
                break;
            }

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                        (osVersion != null && osVersion.compareTo("5.1") >= 0);


    static Win32ShellFolder2 getDesktop() {
        if (desktop == null) {
            try {
                desktop = new Win32ShellFolder2(DESKTOP);
            } catch (IOException e) {
                desktop = null;
            }
        }
        return desktop;

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    }


    static Win32ShellFolder2 getDrives() {
        if (drives == null) {
            try {
                drives = new Win32ShellFolder2(DRIVES);
            } catch (IOException e) {
                drives = null;
            }
        }
        return drives;

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    }


    static Win32ShellFolder2 getNetwork() {
        if (network == null) {
            try {
                network = new Win32ShellFolder2(NETWORK);
            } catch (IOException e) {
                network = null;
            }
        }
        return network;

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    static Win32ShellFolder2 getPersonal() {
        if (personal == null) {
            try {
                String path = Win32ShellFolder2.getFileSystemPath(PERSONAL);
                if (path != null) {
                    Win32ShellFolder2 desktop = getDesktop();
                    personal = desktop.getChildByPath(path);
                    if (personal == null) {
                        personal = createShellFolder(getDesktop(), new File(path));
                    }
                    if (personal != null) {
                        personal.setIsPersonal();

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                    roots = (File[])super.get(key);
                }
            }
            return roots;
        } else if (key.equals("fileChooserComboBoxFolders")) {
            Win32ShellFolder2 desktop = getDesktop();


            if (desktop != null) {
                ArrayList<File> folders = new ArrayList<File>();
                Win32ShellFolder2 drives = getDrives();


                Win32ShellFolder2 recentFolder = getRecent();
                if (recentFolder != null && OSInfo.getWindowsVersion().compareTo(OSInfo.WINDOWS_2000) >= 0) {
                    folders.add(recentFolder);
                }


                folders.add(desktop);
                // Add all second level folders
                File[] secondLevelFolders = desktop.listFiles();
                Arrays.sort(secondLevelFolders);
                for (File secondLevelFolder : secondLevelFolders) {
                    Win32ShellFolder2 folder = (Win32ShellFolder2) secondLevelFolder;
                    if (!folder.isFileSystem() || folder.isDirectory()) {
                        folders.add(folder);
                        // Add third level for "My Computer"
                        if (folder.equals(drives)) {
                            File[] thirdLevelFolders = folder.listFiles();
                            if (thirdLevelFolders != null) {
                                Arrays.sort(thirdLevelFolders, driveComparator);
                                for (File thirdLevelFolder : thirdLevelFolders) {
                                    folders.add(thirdLevelFolder);
                                }
                            }
                        }
                    }
                }
                return folders.toArray(new File[folders.size()]);
            } else {
                return super.get(key);
            }
        } else if (key.equals("fileChooserShortcutPanelFolders")) {
            Toolkit toolkit = Toolkit.getDefaultToolkit();
            ArrayList<File> folders = new ArrayList<File>();
            int i = 0;
            Object value;
            do {
                value = toolkit.getDesktopProperty("win.comdlg.placesBarPlace" + i++);
                try {
                    if (value instanceof Integer) {
                        // A CSIDL
                        folders.add(new Win32ShellFolder2((Integer)value));
                    } else if (value instanceof String) {
                        // A path
                        folders.add(createShellFolder(new File((String)value)));
                    }
                } catch (IOException e) {

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    }


    public boolean isFileSystemRoot(File dir) {
        //Note: Removable drives don't "exist" but are listed in "My Computer"
        if (dir != null) {
            Win32ShellFolder2 drives = getDrives();
            if (dir instanceof Win32ShellFolder2) {
                Win32ShellFolder2 sf = (Win32ShellFolder2)dir;
                if (sf.isFileSystem()) {
                    if (sf.parent != null) {
                        return sf.parent.equals(drives);
                    }
                    // else fall through ...
                } else {

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      }
      if (pIDL == null || cli.System.IntPtr.Zero.Equals(pIDL) ) {
          // Shouldn't happen but watch for it anyway
          throw new FileNotFoundException("File " + file.getAbsolutePath() + " not found");
      }
      Win32ShellFolder2 folder = createShellFolderFromRelativePIDL( parent, pIDL);
      Win32ShellFolder2.releasePIDL(pIDL);
      return folder;
    }

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                        (osVersion != null && osVersion.compareTo("5.1") >= 0);


    static Win32ShellFolder2 getDesktop() {
        if (desktop == null) {
            try {
                desktop = new Win32ShellFolder2(DESKTOP);
            } catch (IOException e) {
                desktop = null;
            }
        }
        return desktop;

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    }


    static Win32ShellFolder2 getDrives() {
        if (drives == null) {
            try {
                drives = new Win32ShellFolder2(DRIVES);
            } catch (IOException e) {
                drives = null;
            }
        }
        return drives;

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