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209 lines
7.4 KiB
209 lines
7.4 KiB
/*
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* Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*/
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package com.sun.java.swing.plaf.windows;
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import java.awt.Component;
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import java.awt.Container;
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import java.awt.Event;
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import java.awt.KeyEventPostProcessor;
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import java.awt.Window;
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import java.awt.Toolkit;
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import sun.awt.AWTAccessor;
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import sun.awt.SunToolkit;
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import java.awt.event.ActionEvent;
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import java.awt.event.KeyEvent;
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import javax.swing.AbstractAction;
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import javax.swing.ActionMap;
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import javax.swing.InputMap;
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import javax.swing.KeyStroke;
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import javax.swing.JComponent;
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import javax.swing.JLabel;
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import javax.swing.JRootPane;
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import javax.swing.SwingUtilities;
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import javax.swing.UIManager;
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import javax.swing.AbstractButton;
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import javax.swing.JFrame;
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import javax.swing.JMenu;
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import javax.swing.JMenuBar;
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import javax.swing.MenuElement;
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import javax.swing.MenuSelectionManager;
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import javax.swing.plaf.ActionMapUIResource;
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import javax.swing.plaf.ComponentUI;
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import javax.swing.plaf.InputMapUIResource;
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import javax.swing.plaf.basic.BasicRootPaneUI;
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import javax.swing.plaf.basic.ComboPopup;
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/**
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* Windows implementation of RootPaneUI, there is one shared between all
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* JRootPane instances.
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*
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* @author Mark Davidson
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* @since 1.4
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*/
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public class WindowsRootPaneUI extends BasicRootPaneUI {
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private final static WindowsRootPaneUI windowsRootPaneUI = new WindowsRootPaneUI();
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static final AltProcessor altProcessor = new AltProcessor();
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public static ComponentUI createUI(JComponent c) {
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return windowsRootPaneUI;
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}
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static class AltProcessor implements KeyEventPostProcessor {
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static boolean altKeyPressed = false;
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static boolean menuCanceledOnPress = false;
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static JRootPane root = null;
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static Window winAncestor = null;
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void altPressed(KeyEvent ev) {
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MenuSelectionManager msm =
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MenuSelectionManager.defaultManager();
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MenuElement[] path = msm.getSelectedPath();
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if (path.length > 0 && ! (path[0] instanceof ComboPopup)) {
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msm.clearSelectedPath();
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menuCanceledOnPress = true;
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ev.consume();
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} else if(path.length > 0) { // We are in ComboBox
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menuCanceledOnPress = false;
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WindowsLookAndFeel.setMnemonicHidden(false);
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WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
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ev.consume();
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} else {
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menuCanceledOnPress = false;
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WindowsLookAndFeel.setMnemonicHidden(false);
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WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
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JMenuBar mbar = root != null ? root.getJMenuBar() : null;
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if(mbar == null && winAncestor instanceof JFrame) {
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mbar = ((JFrame)winAncestor).getJMenuBar();
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}
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JMenu menu = mbar != null ? mbar.getMenu(0) : null;
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if(menu != null) {
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ev.consume();
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}
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}
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}
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void altReleased(KeyEvent ev) {
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if (menuCanceledOnPress) {
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WindowsLookAndFeel.setMnemonicHidden(true);
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WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
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return;
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}
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MenuSelectionManager msm =
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MenuSelectionManager.defaultManager();
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if (msm.getSelectedPath().length == 0) {
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// if no menu is active, we try activating the menubar
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JMenuBar mbar = root != null ? root.getJMenuBar() : null;
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if(mbar == null && winAncestor instanceof JFrame) {
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mbar = ((JFrame)winAncestor).getJMenuBar();
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}
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JMenu menu = mbar != null ? mbar.getMenu(0) : null;
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// It might happen that the altRelease event is processed
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// with a reasonable delay since it has been generated.
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// Here we check the last deactivation time of the containing
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// window. If this time appears to be greater than the altRelease
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// event time the event is skipped to avoid unexpected menu
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// activation. See 7121442.
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// Also we must ensure that original source of key event belongs
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// to the same window object as winAncestor. See 8001633.
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boolean skip = false;
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Toolkit tk = Toolkit.getDefaultToolkit();
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if (tk instanceof SunToolkit) {
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Component originalSource = AWTAccessor.getKeyEventAccessor()
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.getOriginalSource(ev);
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skip = SunToolkit.getContainingWindow(originalSource) != winAncestor ||
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ev.getWhen() <= ((SunToolkit) tk).getWindowDeactivationTime(winAncestor);
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}
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if (menu != null && !skip) {
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MenuElement[] path = new MenuElement[2];
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path[0] = mbar;
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path[1] = menu;
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msm.setSelectedPath(path);
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} else if(!WindowsLookAndFeel.isMnemonicHidden()) {
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WindowsLookAndFeel.setMnemonicHidden(true);
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WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
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}
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} else {
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if((msm.getSelectedPath())[0] instanceof ComboPopup) {
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WindowsLookAndFeel.setMnemonicHidden(true);
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WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
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}
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}
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}
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public boolean postProcessKeyEvent(KeyEvent ev) {
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if(ev.isConsumed() && ev.getKeyCode() != KeyEvent.VK_ALT) {
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// mnemonic combination, it's consumed, but we need
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// set altKeyPressed to false, otherwise after selection
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// component by mnemonic combination a menu will be open
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altKeyPressed = false;
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return false;
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}
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if (ev.getKeyCode() == KeyEvent.VK_ALT) {
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root = SwingUtilities.getRootPane(ev.getComponent());
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winAncestor = (root == null ? null :
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SwingUtilities.getWindowAncestor(root));
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if (ev.getID() == KeyEvent.KEY_PRESSED) {
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if (!altKeyPressed) {
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altPressed(ev);
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}
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altKeyPressed = true;
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return true;
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} else if (ev.getID() == KeyEvent.KEY_RELEASED) {
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if (altKeyPressed) {
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altReleased(ev);
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} else {
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MenuSelectionManager msm =
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MenuSelectionManager.defaultManager();
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MenuElement[] path = msm.getSelectedPath();
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if (path.length <= 0) {
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WindowsLookAndFeel.setMnemonicHidden(true);
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WindowsGraphicsUtils.repaintMnemonicsInWindow(winAncestor);
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}
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}
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altKeyPressed = false;
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}
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root = null;
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winAncestor = null;
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} else {
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altKeyPressed = false;
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}
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return false;
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}
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}
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}
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