jdk/src/java.desktop/windows/classes/sun/awt/windows/WFileDialogPeer.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 1996, 2016, Oracle and/or its affiliates. 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.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package sun.awt.windows;

 import java.awt.*;
 import java.awt.event.FocusEvent.Cause;
 import java.awt.dnd.DropTarget;
 import java.awt.peer.*;
 import java.io.File;
 import java.io.FilenameFilter;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
 import java.util.ResourceBundle;
 import java.util.MissingResourceException;
 import java.util.Vector;
 import sun.awt.AWTAccessor;

 final class WFileDialogPeer extends WWindowPeer implements FileDialogPeer {

     static {
         initIDs();
     }

     private WComponentPeer parent;
     private FilenameFilter fileFilter;

     private Vector<WWindowPeer> blockedWindows = new Vector<>();

     //Needed to fix 4152317
     private static native void setFilterString(String allFilter);

     @Override
     public void setFilenameFilter(FilenameFilter filter) {
         this.fileFilter = filter;
     }

     boolean checkFilenameFilter(String filename) {
         FileDialog fileDialog = (FileDialog)target;
         if (fileFilter == null) {
             return true;
         }
         File file = new File(filename);
         return fileFilter.accept(new File(file.getParent()), file.getName());
     }

     // Toolkit & peer internals
     WFileDialogPeer(FileDialog target) {
         super(target);
     }

     @Override
     void create(WComponentPeer parent) {
         this.parent = parent;
     }

     // don't use checkCreation() from WComponentPeer to avoid hwnd check
     @Override
     protected void checkCreation() {
     }

     @Override
     void initialize() {
         setFilenameFilter(((FileDialog) target).getFilenameFilter());
     }

     private native void _dispose();
     @Override
     protected void disposeImpl() {
         WToolkit.targetDisposedPeer(target, this);
         _dispose();
     }

     private native void _show();
     private native void _hide();

     @Override
     public void show() {
         new Thread(null, this::_show, "FileDialog", 0, false).start();
     }

     @Override
     void hide() {
         _hide();
     }

     // called from native code when the dialog is shown or hidden
     void setHWnd(long hwnd) {
         if (this.hwnd == hwnd) {
             return;
         }
         this.hwnd = hwnd;
         for (WWindowPeer window : blockedWindows) {
             if (hwnd != 0) {
                 window.modalDisable((Dialog)target, hwnd);
             } else {
                 window.modalEnable((Dialog)target);
             }
         }
     }

     /*
      * The function converts the file names (the buffer parameter)
      * in the Windows format into the Java format and saves the results
      * into the FileDialog instance.
      *
      * If it's the multi-select mode, the buffer contains the current
      * directory followed by the short names of the files.
      * The directory and file name strings are NULL separated.
      * If it's the single-select mode, the buffer doesn't have the NULL
      * separator between the path and the file name.
      *
      * NOTE: This method is called by privileged threads.
      *       DO NOT INVOKE CLIENT CODE ON THIS THREAD!
      */
     void handleSelected(final char[] buffer)
     {
         String[] wFiles = (new String(buffer)).split("\0"); // NULL is the delimiter
         boolean multiple = (wFiles.length > 1);

         String jDirectory = null;
         String jFile = null;
         File[] jFiles = null;

         if (multiple) {
             jDirectory = wFiles[0];
             int filesNumber = wFiles.length - 1;
             jFiles = new File[filesNumber];
             for (int i = 0; i < filesNumber; i++) {
                 jFiles[i] = new File(jDirectory, wFiles[i + 1]);
         }
             jFile = wFiles[1]; // choose any file
         } else {
             int index = wFiles[0].lastIndexOf(java.io.File.separatorChar);
             if (index == -1) {
                 jDirectory = "."+java.io.File.separator;
                 jFile = wFiles[0];
             } else {
                 jDirectory = wFiles[0].substring(0, index + 1);
                 jFile = wFiles[0].substring(index + 1);
             }
             jFiles = new File[] { new File(jDirectory, jFile) };
         }

         final FileDialog fileDialog = (FileDialog)target;
         AWTAccessor.FileDialogAccessor fileDialogAccessor = AWTAccessor.getFileDialogAccessor();

         fileDialogAccessor.setDirectory(fileDialog, jDirectory);
         fileDialogAccessor.setFile(fileDialog, jFile);
         fileDialogAccessor.setFiles(fileDialog, jFiles);

         WToolkit.executeOnEventHandlerThread(fileDialog, new Runnable() {
              @Override
              public void run() {
                  fileDialog.setVisible(false);
              }
         });
     } // handleSelected()

     // NOTE: This method is called by privileged threads.
     //       DO NOT INVOKE CLIENT CODE ON THIS THREAD!
     void handleCancel() {
         final FileDialog fileDialog = (FileDialog)target;

         AWTAccessor.getFileDialogAccessor().setFile(fileDialog, null);
         AWTAccessor.getFileDialogAccessor().setFiles(fileDialog, null);
         AWTAccessor.getFileDialogAccessor().setDirectory(fileDialog, null);

         WToolkit.executeOnEventHandlerThread(fileDialog, new Runnable() {
              @Override
              public void run() {
                  fileDialog.setVisible(false);
              }
         });
     } // handleCancel()

     //This whole static block is a part of 4152317 fix
     static {
         String filterString = AccessController.doPrivileged(
             new PrivilegedAction<String>() {
                 @Override
                 public String run() {
                     try {
                         ResourceBundle rb = ResourceBundle.getBundle("sun.awt.windows.awtLocalization");
                         return rb.getString("allFiles");
                     } catch (MissingResourceException e) {
                         return "All Files";
                     }
                 }
             });
         setFilterString(filterString);
     }

     void blockWindow(WWindowPeer window) {
         blockedWindows.add(window);
         // if this dialog hasn't got an HWND, notification is
         // postponed until setHWnd() is called
         if (hwnd != 0) {
             window.modalDisable((Dialog)target, hwnd);
         }
     }
     void unblockWindow(WWindowPeer window) {
         blockedWindows.remove(window);
         // if this dialog hasn't got an HWND or has been already
         // closed, don't send notification
         if (hwnd != 0) {
             window.modalEnable((Dialog)target);
         }
     }

     @Override
     public void blockWindows(java.util.List<Window> toBlock) {
         for (Window w : toBlock) {
             WWindowPeer wp = AWTAccessor.getComponentAccessor().getPeer(w);
             if (wp != null) {
                 blockWindow(wp);
             }
         }
     }

     @Override
     public native void toFront();
     @Override
     public native void toBack();

     // unused methods.  Overridden to disable this functionality as
     // it requires HWND which is not available for FileDialog
     @Override
     public void updateAlwaysOnTopState() {}
     @Override
     public void setDirectory(String dir) {}
     @Override
     public void setFile(String file) {}
     @Override
     public void setTitle(String title) {}

     @Override
     public void setResizable(boolean resizable) {}
     @Override
     void enable() {}
     @Override
     void disable() {}
     @Override
     public void reshape(int x, int y, int width, int height) {}
     public boolean handleEvent(Event e) { return false; }
     @Override
     public void setForeground(Color c) {}
     @Override
     public void setBackground(Color c) {}
     @Override
     public void setFont(Font f) {}
     @Override
     public void updateMinimumSize() {}
     @Override
     public void updateIconImages() {}
     public boolean requestFocus(boolean temporary,
                                 boolean focusedWindowChangeAllowed) {
         return false;
     }

     @Override
     public boolean requestFocus
          (Component lightweightChild, boolean temporary,
           boolean focusedWindowChangeAllowed, long time, Cause cause)
     {
         return false;
     }

     @Override
     void start() {}
     @Override
     public void beginValidate() {}
     @Override
     public void endValidate() {}
     void invalidate(int x, int y, int width, int height) {}
     @Override
     public void addDropTarget(DropTarget dt) {}
     @Override
     public void removeDropTarget(DropTarget dt) {}
     @Override
     public void updateFocusableWindowState() {}
     @Override
     public void setZOrder(ComponentPeer above) {}

     /**
      * Initialize JNI field and method ids
      */
     private static native void initIDs();

     // The effects are not supported for system dialogs.
     @Override
     public void applyShape(sun.java2d.pipe.Region shape) {}
     @Override
     public void setOpacity(float opacity) {}
     @Override
     public void setOpaque(boolean isOpaque) {}
     public void updateWindow(java.awt.image.BufferedImage backBuffer) {}

     // the file/print dialogs are native dialogs and
     // the native system does their own rendering
     @Override
     public void createScreenSurface(boolean isResize) {}
     @Override
     public void replaceSurfaceData() {}

     public boolean isMultipleMode() {
         FileDialog fileDialog = (FileDialog)target;
         return AWTAccessor.getFileDialogAccessor().isMultipleMode(fileDialog);
     }

     @Override
     public native Point getLocationOnScreen();
 }
	/*
	* Copyright (c) 1996, 2016, Oracle and/or its affiliates. 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. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/
	package sun.awt.windows;

	import java.awt.*;
	import java.awt.event.FocusEvent.Cause;
	import java.awt.dnd.DropTarget;
	import java.awt.peer.*;
	import java.io.File;
	import java.io.FilenameFilter;
	import java.security.AccessController;
	import java.security.PrivilegedAction;
	import java.util.ResourceBundle;
	import java.util.MissingResourceException;
	import java.util.Vector;
	import sun.awt.AWTAccessor;

	final class WFileDialogPeer extends WWindowPeer implements FileDialogPeer {

	static {
	initIDs();
	}

	private WComponentPeer parent;
	private FilenameFilter fileFilter;

	private Vector<WWindowPeer> blockedWindows = new Vector<>();

	//Needed to fix 4152317
	private static native void setFilterString(String allFilter);

	@Override
	public void setFilenameFilter(FilenameFilter filter) {
	this.fileFilter = filter;
	}

	boolean checkFilenameFilter(String filename) {
	FileDialog fileDialog = (FileDialog)target;
	if (fileFilter == null) {
	return true;
	}
	File file = new File(filename);
	return fileFilter.accept(new File(file.getParent()), file.getName());
	}

	// Toolkit & peer internals
	WFileDialogPeer(FileDialog target) {
	super(target);
	}

	@Override
	void create(WComponentPeer parent) {
	this.parent = parent;
	}

	// don't use checkCreation() from WComponentPeer to avoid hwnd check
	@Override
	protected void checkCreation() {
	}

	@Override
	void initialize() {
	setFilenameFilter(((FileDialog) target).getFilenameFilter());
	}

	private native void _dispose();
	@Override
	protected void disposeImpl() {
	WToolkit.targetDisposedPeer(target, this);
	_dispose();
	}

	private native void _show();
	private native void _hide();

	@Override
	public void show() {
	new Thread(null, this::_show, "FileDialog", 0, false).start();
	}

	@Override
	void hide() {
	_hide();
	}

	// called from native code when the dialog is shown or hidden
	void setHWnd(long hwnd) {
	if (this.hwnd == hwnd) {
	return;
	}
	this.hwnd = hwnd;
	for (WWindowPeer window : blockedWindows) {
	if (hwnd != 0) {
	window.modalDisable((Dialog)target, hwnd);
	} else {
	window.modalEnable((Dialog)target);
	}
	}
	}

	/*
	* The function converts the file names (the buffer parameter)
	* in the Windows format into the Java format and saves the results
	* into the FileDialog instance.
	*
	* If it's the multi-select mode, the buffer contains the current
	* directory followed by the short names of the files.
	* The directory and file name strings are NULL separated.
	* If it's the single-select mode, the buffer doesn't have the NULL
	* separator between the path and the file name.
	*
	* NOTE: This method is called by privileged threads.
	* DO NOT INVOKE CLIENT CODE ON THIS THREAD!
	*/
	void handleSelected(final char[] buffer)
	{
	String[] wFiles = (new String(buffer)).split("\0"); // NULL is the delimiter
	boolean multiple = (wFiles.length > 1);

	String jDirectory = null;
	String jFile = null;
	File[] jFiles = null;

	if (multiple) {
	jDirectory = wFiles[0];
	int filesNumber = wFiles.length - 1;
	jFiles = new File[filesNumber];
	for (int i = 0; i < filesNumber; i++) {
	jFiles[i] = new File(jDirectory, wFiles[i + 1]);
	}
	jFile = wFiles[1]; // choose any file
	} else {
	int index = wFiles[0].lastIndexOf(java.io.File.separatorChar);
	if (index == -1) {
	jDirectory = "."+java.io.File.separator;
	jFile = wFiles[0];
	} else {
	jDirectory = wFiles[0].substring(0, index + 1);
	jFile = wFiles[0].substring(index + 1);
	}
	jFiles = new File[] { new File(jDirectory, jFile) };
	}

	final FileDialog fileDialog = (FileDialog)target;
	AWTAccessor.FileDialogAccessor fileDialogAccessor = AWTAccessor.getFileDialogAccessor();

	fileDialogAccessor.setDirectory(fileDialog, jDirectory);
	fileDialogAccessor.setFile(fileDialog, jFile);
	fileDialogAccessor.setFiles(fileDialog, jFiles);

	WToolkit.executeOnEventHandlerThread(fileDialog, new Runnable() {
	@Override
	public void run() {
	fileDialog.setVisible(false);
	}
	});
	} // handleSelected()

	// NOTE: This method is called by privileged threads.
	// DO NOT INVOKE CLIENT CODE ON THIS THREAD!
	void handleCancel() {
	final FileDialog fileDialog = (FileDialog)target;

	AWTAccessor.getFileDialogAccessor().setFile(fileDialog, null);
	AWTAccessor.getFileDialogAccessor().setFiles(fileDialog, null);
	AWTAccessor.getFileDialogAccessor().setDirectory(fileDialog, null);

	WToolkit.executeOnEventHandlerThread(fileDialog, new Runnable() {
	@Override
	public void run() {
	fileDialog.setVisible(false);
	}
	});
	} // handleCancel()

	//This whole static block is a part of 4152317 fix
	static {
	String filterString = AccessController.doPrivileged(
	new PrivilegedAction<String>() {
	@Override
	public String run() {
	try {
	ResourceBundle rb = ResourceBundle.getBundle("sun.awt.windows.awtLocalization");
	return rb.getString("allFiles");
	} catch (MissingResourceException e) {
	return "All Files";
	}
	}
	});
	setFilterString(filterString);
	}

	void blockWindow(WWindowPeer window) {
	blockedWindows.add(window);
	// if this dialog hasn't got an HWND, notification is
	// postponed until setHWnd() is called
	if (hwnd != 0) {
	window.modalDisable((Dialog)target, hwnd);
	}
	}
	void unblockWindow(WWindowPeer window) {
	blockedWindows.remove(window);
	// if this dialog hasn't got an HWND or has been already
	// closed, don't send notification
	if (hwnd != 0) {
	window.modalEnable((Dialog)target);
	}
	}

	@Override
	public void blockWindows(java.util.List<Window> toBlock) {
	for (Window w : toBlock) {
	WWindowPeer wp = AWTAccessor.getComponentAccessor().getPeer(w);
	if (wp != null) {
	blockWindow(wp);
	}
	}
	}

	@Override
	public native void toFront();
	@Override
	public native void toBack();

	// unused methods. Overridden to disable this functionality as
	// it requires HWND which is not available for FileDialog
	@Override
	public void updateAlwaysOnTopState() {}
	@Override
	public void setDirectory(String dir) {}
	@Override
	public void setFile(String file) {}
	@Override
	public void setTitle(String title) {}

	@Override
	public void setResizable(boolean resizable) {}
	@Override
	void enable() {}
	@Override
	void disable() {}
	@Override
	public void reshape(int x, int y, int width, int height) {}
	public boolean handleEvent(Event e) { return false; }
	@Override
	public void setForeground(Color c) {}
	@Override
	public void setBackground(Color c) {}
	@Override
	public void setFont(Font f) {}
	@Override
	public void updateMinimumSize() {}
	@Override
	public void updateIconImages() {}
	public boolean requestFocus(boolean temporary,
	boolean focusedWindowChangeAllowed) {
	return false;
	}

	@Override
	public boolean requestFocus
	(Component lightweightChild, boolean temporary,
	boolean focusedWindowChangeAllowed, long time, Cause cause)
	{
	return false;
	}

	@Override
	void start() {}
	@Override
	public void beginValidate() {}
	@Override
	public void endValidate() {}
	void invalidate(int x, int y, int width, int height) {}
	@Override
	public void addDropTarget(DropTarget dt) {}
	@Override
	public void removeDropTarget(DropTarget dt) {}
	@Override
	public void updateFocusableWindowState() {}
	@Override
	public void setZOrder(ComponentPeer above) {}

	/**
	* Initialize JNI field and method ids
	*/
	private static native void initIDs();

	// The effects are not supported for system dialogs.
	@Override
	public void applyShape(sun.java2d.pipe.Region shape) {}
	@Override
	public void setOpacity(float opacity) {}
	@Override
	public void setOpaque(boolean isOpaque) {}
	public void updateWindow(java.awt.image.BufferedImage backBuffer) {}

	// the file/print dialogs are native dialogs and
	// the native system does their own rendering
	@Override
	public void createScreenSurface(boolean isResize) {}
	@Override
	public void replaceSurfaceData() {}

	public boolean isMultipleMode() {
	FileDialog fileDialog = (FileDialog)target;
	return AWTAccessor.getFileDialogAccessor().isMultipleMode(fileDialog);
	}

	@Override
	public native Point getLocationOnScreen();
	}