/*
* Copyright (c) 2009, 2017, 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.swing;
import jdk.internal.misc.Unsafe;
import java.awt.*;
import javax.swing.*;
import javax.swing.text.JTextComponent;
/**
* The SwingAccessor utility class.
* The main purpose of this class is to enable accessing
* private and package-private fields of classes from
* different classes/packages. See sun.misc.SharedSecretes
* for another example.
*/
public final class SwingAccessor {
private static final Unsafe unsafe = Unsafe.getUnsafe();
/**
* We don't need any objects of this class.
* It's rather a collection of static methods
* and interfaces.
*/
private SwingAccessor() {
}
/**
* An accessor for the JComponent class.
*/
public interface JComponentAccessor {
boolean getFlag(JComponent comp, int aFlag);
void compWriteObjectNotify(JComponent comp);
}
/**
* An accessor for the JTextComponent class.
* Note that we intentionally introduce the JTextComponentAccessor,
* and not the JComponentAccessor because the needed methods
* aren't override methods.
*/
public interface JTextComponentAccessor {
/**
* Calculates a custom drop location for the text component,
* representing where a drop at the given point should insert data.
*/
TransferHandler.DropLocation dropLocationForPoint(JTextComponent textComp, Point p);
/**
* Called to set or clear the drop location during a DnD operation.
*/
Object setDropLocation(JTextComponent textComp, TransferHandler.DropLocation location,
Object state, boolean forDrop);
}
/**
* An accessor for the JLightweightFrame class.
*/
public interface JLightweightFrameAccessor {
/**
* Notifies the JLightweight frame that it needs to update a cursor
*/
void updateCursor(JLightweightFrame frame);
}
/**
* An accessor for the UIDefaults class.
*/
public interface UIDefaultsAccessor {
/**
* Adds a resource bundle to the list of resource bundles.
*/
void addInternalBundle(UIDefaults uiDefaults, String bundleName);
}
/**
* An accessor for the RepaintManager class.
*/
public interface RepaintManagerAccessor {
void addRepaintListener(RepaintManager rm, SwingUtilities2.RepaintListener l);
void removeRepaintListener(RepaintManager rm, SwingUtilities2.RepaintListener l);
}
/**
* An accessor for PopupFactory class.
*/
public interface PopupFactoryAccessor {
Popup getHeavyWeightPopup(PopupFactory factory, Component owner, Component contents,
int ownerX, int ownerY);
}
/*
* An accessor for the KeyStroke class
*/
public interface KeyStrokeAccessor {
KeyStroke create();
}
/**
* The javax.swing.JComponent class accessor object.
*/
private static JComponentAccessor jComponentAccessor;
/**
* Set an accessor object for the javax.swing.JComponent class.
*/
public static void setJComponentAccessor(JComponentAccessor jCompAccessor) {
jComponentAccessor = jCompAccessor;
}
/**
* Retrieve the accessor object for the javax.swing.JComponent class.
*/
public static JComponentAccessor getJComponentAccessor() {
if (jComponentAccessor == null) {
unsafe.ensureClassInitialized(JComponent.class);
}
return jComponentAccessor;
}
/**
* The javax.swing.text.JTextComponent class accessor object.
*/
private static JTextComponentAccessor jtextComponentAccessor;
/**
* Set an accessor object for the javax.swing.text.JTextComponent class.
*/
public static void setJTextComponentAccessor(JTextComponentAccessor jtca) {
jtextComponentAccessor = jtca;
}
/**
* Retrieve the accessor object for the javax.swing.text.JTextComponent class.
*/
public static JTextComponentAccessor getJTextComponentAccessor() {
if (jtextComponentAccessor == null) {
unsafe.ensureClassInitialized(JTextComponent.class);
}
return jtextComponentAccessor;
}
/**
* The JLightweightFrame class accessor object
*/
private static JLightweightFrameAccessor jLightweightFrameAccessor;
/**
* Set an accessor object for the JLightweightFrame class.
*/
public static void setJLightweightFrameAccessor(JLightweightFrameAccessor accessor) {
jLightweightFrameAccessor = accessor;
}
/**
* Retrieve the accessor object for the JLightweightFrame class
*/
public static JLightweightFrameAccessor getJLightweightFrameAccessor() {
if (jLightweightFrameAccessor == null) {
unsafe.ensureClassInitialized(JLightweightFrame.class);
}
return jLightweightFrameAccessor;
}
/**
* The UIDefaults class accessor object
*/
private static UIDefaultsAccessor uiDefaultsAccessor;
/**
* Set an accessor object for the UIDefaults class.
*/
public static void setUIDefaultsAccessor(UIDefaultsAccessor accessor) {
uiDefaultsAccessor = accessor;
}
/**
* Retrieve the accessor object for the JLightweightFrame class
*/
public static UIDefaultsAccessor getUIDefaultsAccessor() {
if (uiDefaultsAccessor == null) {
unsafe.ensureClassInitialized(UIDefaults.class);
}
return uiDefaultsAccessor;
}
/**
* The RepaintManager class accessor object.
*/
private static RepaintManagerAccessor repaintManagerAccessor;
/**
* Set an accessor object for the RepaintManager class.
*/
public static void setRepaintManagerAccessor(RepaintManagerAccessor accessor) {
repaintManagerAccessor = accessor;
}
/**
* Retrieve the accessor object for the RepaintManager class.
*/
public static RepaintManagerAccessor getRepaintManagerAccessor() {
if (repaintManagerAccessor == null) {
unsafe.ensureClassInitialized(RepaintManager.class);
}
return repaintManagerAccessor;
}
/**
* The PopupFactory class accessor object.
*/
private static PopupFactoryAccessor popupFactoryAccessor;
/**
* Retrieve the accessor object for the PopupFactory class.
*/
public static PopupFactoryAccessor getPopupFactoryAccessor() {
if (popupFactoryAccessor == null) {
unsafe.ensureClassInitialized(PopupFactory.class);
}
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