jdk/src/solaris/classes/sun/awt/motif/MFileDialogPeer.java - platform/libcore - Gitiles

 /*
  * Copyright 1995-2003 Sun Microsystems, Inc.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Sun designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Sun in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  */
 package sun.awt.motif;

 import java.awt.*;
 import java.awt.peer.*;
 import java.io.*;
 import java.awt.datatransfer.*;
 import java.util.ArrayList;
 import sun.awt.datatransfer.ToolkitThreadBlockedHandler;

 public class MFileDialogPeer extends MDialogPeer implements FileDialogPeer {
     private FilenameFilter filter;
     private String[] NativeFilteredFiles;
     native void create(MComponentPeer parent);
     void create(MComponentPeer parent, Object arg) {
         create(parent);
     }
     public MFileDialogPeer(FileDialog target) {
         super(target);
         FileDialog      fdialog = (FileDialog)target;
         String          dir = fdialog.getDirectory();
         String          file = fdialog.getFile();
         FilenameFilter  filter = fdialog.getFilenameFilter();

         insets = new Insets(0, 0, 0, 0);
         setDirectory(dir);
         if (file != null) {
             setFile(file);
         }
             setFilenameFilter(filter);
     }
     native void         pReshape(int x, int y, int width, int height);
     native void         pDispose();
     native void         pShow();
     native void         pHide();
     native void         setFileEntry(String dir, String file, String[] ffiles);
     native void insertReplaceFileDialogText(String l);
     public native void  setFont(Font f);

     String getFilteredFile(String file) {
         if (file == null) {
             file = ((FileDialog)target).getFile();
         }
         String dir = ((FileDialog)target).getDirectory();
         if (dir == null) {
             dir = "./";
         }
         if (file == null) {
             file = "";
         }
         if (filter != null && !filter.accept(new File(dir), file)) {
             file = "";
         }
         return file;
     }
     // NOTE: This method is called by privileged threads.
     //       DO NOT INVOKE CLIENT CODE ON THIS THREAD!
     public void         handleSelected(final String file) {
         final FileDialog fileDialog = (FileDialog)target;
         MToolkit.executeOnEventHandlerThread(fileDialog, new Runnable() {
             public void run() {
                 int index = file.lastIndexOf(java.io.File.separatorChar);/*2509*//*ibm*/
                 String dir;

                 if (index == -1) {
                     dir = "."+java.io.File.separator;
                     fileDialog.setFile(file);
                 } else {
                     dir = file.substring(0, index + 1);
                     fileDialog.setFile(file.substring(index + 1));
                 }
                 fileDialog.setDirectory(dir);
                 fileDialog.hide();
             }
         });
     } // handleSelected()

     // NOTE: This method is called by privileged threads.
     //       DO NOT INVOKE CLIENT CODE ON THIS THREAD!
     public void         handleCancel() {
         final FileDialog fileDialog = (FileDialog)target;
         MToolkit.executeOnEventHandlerThread(fileDialog, new Runnable() {
             public void run() {
                 fileDialog.setFile(null);
                 fileDialog.hide();
             }
         });
     } // handleCancel()

     // NOTE: This method is called by privileged threads.
     //       DO NOT INVOKE CLIENT CODE ON THIS THREAD!
     public void         handleQuit() {
         final FileDialog fileDialog = (FileDialog)target;
         MToolkit.executeOnEventHandlerThread(fileDialog, new Runnable() {
             public void run() {
                 fileDialog.hide();
             }
         });
     } // handleQuit()

     public  void setDirectory(String dir) {
         String file = ((FileDialog)target).getFile();
         setFileEntry((dir != null) ? dir : "./", (file != null) ? file
                      : "", null);
     }


     public  void setFile(String file) {
         String dir = ((FileDialog)target).getDirectory();
         if (dir == null) {
             dir = "./";
         }
         setFileEntry((dir != null) ? dir : "./", getFilteredFile(null), null);
     }
     class DirectoryFilter implements FilenameFilter {
         FilenameFilter userFilter;
         DirectoryFilter(FilenameFilter userFilter) {
             this.userFilter = userFilter;
         }
         public boolean accept(File parent, String name) {
             File toTest = new File(parent, name);
             if (toTest.isDirectory()) {
                 return false;
             } else if (userFilter != null) {
                 return userFilter.accept(parent, name);
             } else {
                 return true;
             }
         }
     }
     public void doFilter(FilenameFilter filter, String dir) {
         String d = (dir == null) ? (((FileDialog)target).getDirectory()):(dir);
         String f = getFilteredFile(null);
         File df = new File((d != null) ? d : ".");
         String[] files = df.list(new DirectoryFilter(filter));
         String[] nffiles = NativeFilteredFiles;

         // At this point we have two file lists.
         // The first one is a filtered list of files that we retrieve
         // by using Java code and Java filter.
         // The second one is a filtered list of files that we retrieve
         // by using the native code and native pattern.
         // We should find an intersection of these two lists. The result
         // will be exactly what we expect to see in setFileEntry.
         // For more details please see 4784704.
         if ( files != null ) {
             ArrayList filearr = new ArrayList();
             if (nffiles != null) {
                 for (int j = 0; j < files.length; j++) {
                     for (int n = 0; n < nffiles.length; n++) {
                         if (files[j].equals(nffiles[n])) {
                             filearr.add(files[j]);
                             break;
                         }
                     }
                 }
             }
             files = new String[filearr.size()];
             for (int i = 0; i < files.length; i++) {
                 files[i] = (String)filearr.get(i);
             }
         }
         if (files == null || files.length == 0) {
             files = new String[1];
             files[0] = "";
         }
         setFileEntry((d != null) ? d : ".", (f != null) ? f : "", files);
     }
     private boolean proceedFiltering(final String dir, String[] nffiles,
                                      boolean isPrivileged)
     {
         // Transfer the native filtered file list to the doFilter method.
         NativeFilteredFiles = nffiles;
         // If we are not on the Toolkit thread we can call doFilter() directly.
         // If the filter is null no user code will be invoked
         if (!isPrivileged || filter == null) {
             try {
                 doFilter(filter, dir);
                 return true;
             } catch(Exception e) {
                 e.printStackTrace();
                 return false;
             }
         }
         // Otherwise we have to call user code on EvenDispatchThread
         final ToolkitThreadBlockedHandler priveleged_lock =
             MToolkitThreadBlockedHandler.getToolkitThreadBlockedHandler();
         final boolean[] finished = new boolean[1];
         final boolean[] result = new boolean[1];
         finished[0] = false;
         result[0] = false;


         // Use the same Toolkit blocking mechanism as in DnD.
         priveleged_lock.lock();

         MToolkit.executeOnEventHandlerThread((FileDialog)target, new Runnable() {
             public void run() {
                 priveleged_lock.lock();
                 try {
                     doFilter(filter, dir);
                     result[0] = true;
                 } catch (Exception e) {
                     e.printStackTrace();
                     result[0] = false;
                 } finally {
                     finished[0] = true;
                     priveleged_lock.exit();
                     priveleged_lock.unlock();
                 }
             }
         });

         while (!finished[0]) {
             priveleged_lock.enter();
         }

         priveleged_lock.unlock();

         return result[0];
     }

     public void setFilenameFilter(FilenameFilter filter) {
         this.filter = filter;
         FileDialog      fdialog = (FileDialog)target;
         String          dir = fdialog.getDirectory();
         String          file = fdialog.getFile();
         setFile(file);
         doFilter(filter, null);
     }

     // Called from native widget when paste key is pressed and we
     // already own the selection (prevents Motif from hanging while
     // waiting for the selection)
     //
     public void pasteFromClipboard() {
         Clipboard clipboard = target.getToolkit().getSystemClipboard();

         Transferable content = clipboard.getContents(this);
         if (content != null) {
             try {
                 String data = (String)(content.getTransferData(DataFlavor.stringFlavor));
                 insertReplaceFileDialogText(data);
             } catch (Exception e) {
             }
         }
     }

 // CAVEAT:
 // Peer coalescing code turned over the fact that the following functions
 // were being inherited from Dialog and were not implemented in awt_FileDialog.c
 // Five methods decribed by the peer interface are at fault (setResizable, setTitle,
 // toFront, toBack and handleFocusTraversalEvent).  Additionally show has to be overridden
 // as it was necessary to add a show function in MDialogPeer for modality flag passing.
 // As a result we were winding up in  awt_Dialog.c (now coalesced into awt_TopLevel).
 // As Filedialogs are modal and its unclear to me that any of these functions
 // can be called while the FD is on-screen let it go.  RJM.
     public void show() {
         // must have our own show or we wind up in pShow for Window. Bad. Very bad.
         setVisible(true);
         setFilenameFilter(filter);
     }

     /**
      * MFileDialogPeer doesn't have native pData so we don't do restack on it
      * @see java.awt.peer.ContainerPeer#restack
      */
     public void restack() {
     }

     /**
      * @see java.awt.peer.ContainerPeer#isRestackSupported
      */
     public boolean isRestackSupported() {
         return false;
     }
 }
	/*
	* Copyright 1995-2003 Sun Microsystems, Inc. All Rights Reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Sun designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Sun in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
	* CA 95054 USA or visit www.sun.com if you need additional information or
	* have any questions.
	*/
	package sun.awt.motif;

	import java.awt.*;
	import java.awt.peer.*;
	import java.io.*;
	import java.awt.datatransfer.*;
	import java.util.ArrayList;
	import sun.awt.datatransfer.ToolkitThreadBlockedHandler;

	public class MFileDialogPeer extends MDialogPeer implements FileDialogPeer {
	private FilenameFilter filter;
	private String[] NativeFilteredFiles;
	native void create(MComponentPeer parent);
	void create(MComponentPeer parent, Object arg) {
	create(parent);
	}
	public MFileDialogPeer(FileDialog target) {
	super(target);
	FileDialog fdialog = (FileDialog)target;
	String dir = fdialog.getDirectory();
	String file = fdialog.getFile();
	FilenameFilter filter = fdialog.getFilenameFilter();

	insets = new Insets(0, 0, 0, 0);
	setDirectory(dir);
	if (file != null) {
	setFile(file);
	}
	setFilenameFilter(filter);
	}
	native void pReshape(int x, int y, int width, int height);
	native void pDispose();
	native void pShow();
	native void pHide();
	native void setFileEntry(String dir, String file, String[] ffiles);
	native void insertReplaceFileDialogText(String l);
	public native void setFont(Font f);

	String getFilteredFile(String file) {
	if (file == null) {
	file = ((FileDialog)target).getFile();
	}
	String dir = ((FileDialog)target).getDirectory();
	if (dir == null) {
	dir = "./";
	}
	if (file == null) {
	file = "";
	}
	if (filter != null && !filter.accept(new File(dir), file)) {
	file = "";
	}
	return file;
	}
	// NOTE: This method is called by privileged threads.
	// DO NOT INVOKE CLIENT CODE ON THIS THREAD!
	public void handleSelected(final String file) {
	final FileDialog fileDialog = (FileDialog)target;
	MToolkit.executeOnEventHandlerThread(fileDialog, new Runnable() {
	public void run() {
	int index = file.lastIndexOf(java.io.File.separatorChar);/2509//ibm/
	String dir;

	if (index == -1) {
	dir = "."+java.io.File.separator;
	fileDialog.setFile(file);
	} else {
	dir = file.substring(0, index + 1);
	fileDialog.setFile(file.substring(index + 1));
	}
	fileDialog.setDirectory(dir);
	fileDialog.hide();
	}
	});
	} // handleSelected()

	// NOTE: This method is called by privileged threads.
	// DO NOT INVOKE CLIENT CODE ON THIS THREAD!
	public void handleCancel() {
	final FileDialog fileDialog = (FileDialog)target;
	MToolkit.executeOnEventHandlerThread(fileDialog, new Runnable() {
	public void run() {
	fileDialog.setFile(null);
	fileDialog.hide();
	}
	});
	} // handleCancel()

	// NOTE: This method is called by privileged threads.
	// DO NOT INVOKE CLIENT CODE ON THIS THREAD!
	public void handleQuit() {
	final FileDialog fileDialog = (FileDialog)target;
	MToolkit.executeOnEventHandlerThread(fileDialog, new Runnable() {
	public void run() {
	fileDialog.hide();
	}
	});
	} // handleQuit()

	public void setDirectory(String dir) {
	String file = ((FileDialog)target).getFile();
	setFileEntry((dir != null) ? dir : "./", (file != null) ? file
	: "", null);
	}


	public void setFile(String file) {
	String dir = ((FileDialog)target).getDirectory();
	if (dir == null) {
	dir = "./";
	}
	setFileEntry((dir != null) ? dir : "./", getFilteredFile(null), null);
	}
	class DirectoryFilter implements FilenameFilter {
	FilenameFilter userFilter;
	DirectoryFilter(FilenameFilter userFilter) {
	this.userFilter = userFilter;
	}
	public boolean accept(File parent, String name) {
	File toTest = new File(parent, name);
	if (toTest.isDirectory()) {
	return false;
	} else if (userFilter != null) {
	return userFilter.accept(parent, name);
	} else {
	return true;
	}
	}
	}
	public void doFilter(FilenameFilter filter, String dir) {
	String d = (dir == null) ? (((FileDialog)target).getDirectory()):(dir);
	String f = getFilteredFile(null);
	File df = new File((d != null) ? d : ".");
	String[] files = df.list(new DirectoryFilter(filter));
	String[] nffiles = NativeFilteredFiles;

	// At this point we have two file lists.
	// The first one is a filtered list of files that we retrieve
	// by using Java code and Java filter.
	// The second one is a filtered list of files that we retrieve
	// by using the native code and native pattern.
	// We should find an intersection of these two lists. The result
	// will be exactly what we expect to see in setFileEntry.
	// For more details please see 4784704.
	if ( files != null ) {
	ArrayList filearr = new ArrayList();
	if (nffiles != null) {
	for (int j = 0; j < files.length; j++) {
	for (int n = 0; n < nffiles.length; n++) {
	if (files[j].equals(nffiles[n])) {
	filearr.add(files[j]);
	break;
	}
	}
	}
	}
	files = new String[filearr.size()];
	for (int i = 0; i < files.length; i++) {
	files[i] = (String)filearr.get(i);
	}
	}
	if (files == null \|\| files.length == 0) {
	files = new String[1];
	files[0] = "";
	}
	setFileEntry((d != null) ? d : ".", (f != null) ? f : "", files);
	}
	private boolean proceedFiltering(final String dir, String[] nffiles,
	boolean isPrivileged)
	{
	// Transfer the native filtered file list to the doFilter method.
	NativeFilteredFiles = nffiles;
	// If we are not on the Toolkit thread we can call doFilter() directly.
	// If the filter is null no user code will be invoked
	if (!isPrivileged \|\| filter == null) {
	try {
	doFilter(filter, dir);
	return true;
	} catch(Exception e) {
	e.printStackTrace();
	return false;
	}
	}
	// Otherwise we have to call user code on EvenDispatchThread
	final ToolkitThreadBlockedHandler priveleged_lock =
	MToolkitThreadBlockedHandler.getToolkitThreadBlockedHandler();
	final boolean[] finished = new boolean[1];
	final boolean[] result = new boolean[1];
	finished[0] = false;
	result[0] = false;


	// Use the same Toolkit blocking mechanism as in DnD.
	priveleged_lock.lock();

	MToolkit.executeOnEventHandlerThread((FileDialog)target, new Runnable() {
	public void run() {
	priveleged_lock.lock();
	try {
	doFilter(filter, dir);
	result[0] = true;
	} catch (Exception e) {
	e.printStackTrace();
	result[0] = false;
	} finally {
	finished[0] = true;
	priveleged_lock.exit();
	priveleged_lock.unlock();
	}
	}
	});

	while (!finished[0]) {
	priveleged_lock.enter();
	}

	priveleged_lock.unlock();

	return result[0];
	}

	public void setFilenameFilter(FilenameFilter filter) {
	this.filter = filter;
	FileDialog fdialog = (FileDialog)target;
	String dir = fdialog.getDirectory();
	String file = fdialog.getFile();
	setFile(file);
	doFilter(filter, null);
	}

	// Called from native widget when paste key is pressed and we
	// already own the selection (prevents Motif from hanging while
	// waiting for the selection)
	//
	public void pasteFromClipboard() {
	Clipboard clipboard = target.getToolkit().getSystemClipboard();

	Transferable content = clipboard.getContents(this);
	if (content != null) {
	try {
	String data = (String)(content.getTransferData(DataFlavor.stringFlavor));
	insertReplaceFileDialogText(data);
	} catch (Exception e) {
	}
	}
	}

	// CAVEAT:
	// Peer coalescing code turned over the fact that the following functions
	// were being inherited from Dialog and were not implemented in awt_FileDialog.c
	// Five methods decribed by the peer interface are at fault (setResizable, setTitle,
	// toFront, toBack and handleFocusTraversalEvent). Additionally show has to be overridden
	// as it was necessary to add a show function in MDialogPeer for modality flag passing.
	// As a result we were winding up in awt_Dialog.c (now coalesced into awt_TopLevel).
	// As Filedialogs are modal and its unclear to me that any of these functions
	// can be called while the FD is on-screen let it go. RJM.
	public void show() {
	// must have our own show or we wind up in pShow for Window. Bad. Very bad.
	setVisible(true);
	setFilenameFilter(filter);
	}

	/**
	* MFileDialogPeer doesn't have native pData so we don't do restack on it
	* @see java.awt.peer.ContainerPeer#restack
	*/
	public void restack() {
	}

	/**
	* @see java.awt.peer.ContainerPeer#isRestackSupported
	*/
	public boolean isRestackSupported() {
	return false;
	}
	}