1 /*
2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.apple.laf;
27
28 import java.awt.*;
29 import java.awt.event.MouseEvent;
30
31 import javax.swing.*;
32 import javax.swing.event.*;
33 import javax.swing.plaf.ComponentUI;
34 import javax.swing.plaf.basic.BasicMenuUI;
35
36 public class AquaMenuUI extends BasicMenuUI implements AquaMenuPainter.Client {
37 public static ComponentUI createUI(final JComponent x) {
38 return new AquaMenuUI();
39 }
40
41 protected ChangeListener createChangeListener(final JComponent c) {
42 return new ChangeHandler((JMenu)c, this);
43 }
44
45 protected void installDefaults() {
46 super.installDefaults();
47
48 // [3361625]
49 // In Aqua, the menu delay is 8 ticks, according to Eric Schlegel.
50 // That makes the millisecond delay 8 ticks * 1 second / 60 ticks * 1000 milliseconds/second
51 ((JMenu)menuItem).setDelay(8 * 1000 / 60);
52 }
53
54 protected void paintMenuItem(final Graphics g, final JComponent c, final Icon localCheckIcon, final Icon localArrowIcon, final Color background, final Color foreground, final int localDefaultTextIconGap) {
55 AquaMenuPainter.instance().paintMenuItem(this, g, c, localCheckIcon, localArrowIcon, background, foreground, disabledForeground, selectionForeground, localDefaultTextIconGap, acceleratorFont);
56 }
57
58 protected Dimension getPreferredMenuItemSize(final JComponent c, final Icon localCheckIcon, final Icon localArrowIcon, final int localDefaultTextIconGap) {
59 final Dimension d = AquaMenuPainter.instance().getPreferredMenuItemSize(c, localCheckIcon, localArrowIcon, localDefaultTextIconGap, acceleratorFont);
60 if (c.getParent() instanceof JMenuBar) d.height = Math.max(d.height, 21);
61 return d;
62 }
63
64 public void paintBackground(final Graphics g, final JComponent c, final int menuWidth, final int menuHeight) {
65 final Container parent = c.getParent();
66 final boolean parentIsMenuBar = parent instanceof JMenuBar;
67
68 final ButtonModel model = ((JMenuItem)c).getModel();
69 if (model.isArmed() || model.isSelected()) {
70 if (parentIsMenuBar) {
71 AquaMenuPainter.instance().paintSelectedMenuTitleBackground(g, menuWidth, menuHeight);
72 } else {
73 AquaMenuPainter.instance().paintSelectedMenuItemBackground(g, menuWidth, menuHeight);
74 }
75 } else {
76 if (parentIsMenuBar) {
77 AquaMenuPainter.instance().paintMenuBarBackground(g, menuWidth, menuHeight, c);
78 } else {
79 g.setColor(c.getBackground());
80 g.fillRect(0, 0, menuWidth, menuHeight);
81 }
82 }
83 }
84
85 protected MouseInputListener createMouseInputListener(final JComponent c) {
86 return new AquaMouseInputHandler();
87 }
88
89 protected MenuDragMouseListener createMenuDragMouseListener(final JComponent c) {
90 //return super.createMenuDragMouseListener(c);
91 return new MenuDragMouseHandler();
92 }
93
94 class MenuDragMouseHandler implements MenuDragMouseListener {
95 public void menuDragMouseDragged(final MenuDragMouseEvent e) {
96 if (menuItem.isEnabled() == false) return;
97
98 final MenuSelectionManager manager = e.getMenuSelectionManager();
99 final MenuElement path[] = e.getPath();
100
101 // In Aqua, we always respect the menu's delay, if one is set.
102 // Doesn't matter how the menu is clicked on or otherwise moused over.
103 final Point p = e.getPoint();
104 if (p.x >= 0 && p.x < menuItem.getWidth() && p.y >= 0 && p.y < menuItem.getHeight()) {
105 final JMenu menu = (JMenu)menuItem;
106 final MenuElement selectedPath[] = manager.getSelectedPath();
107 if (!(selectedPath.length > 0 && selectedPath[selectedPath.length - 1] == menu.getPopupMenu())) {
108 if (menu.getDelay() == 0) {
109 appendPath(path, menu.getPopupMenu());
110 } else {
111 manager.setSelectedPath(path);
112 setupPostTimer(menu);
113 }
114 }
115 } else if (e.getID() == MouseEvent.MOUSE_RELEASED) {
116 final Component comp = manager.componentForPoint(e.getComponent(), e.getPoint());
117 if (comp == null) manager.clearSelectedPath();
118 }
119 }
120
121 public void menuDragMouseEntered(final MenuDragMouseEvent e) { }
122 public void menuDragMouseExited(final MenuDragMouseEvent e) { }
123 public void menuDragMouseReleased(final MenuDragMouseEvent e) { }
124 }
125
126 static void appendPath(final MenuElement[] path, final MenuElement elem) {
127 final MenuElement newPath[] = new MenuElement[path.length + 1];
128 System.arraycopy(path, 0, newPath, 0, path.length);
129 newPath[path.length] = elem;
130 MenuSelectionManager.defaultManager().setSelectedPath(newPath);
131 }
132
133 protected class AquaMouseInputHandler extends MouseInputHandler {
134 /**
135 * Invoked when the cursor enters the menu. This method sets the selected
136 * path for the MenuSelectionManager and handles the case
137 * in which a menu item is used to pop up an additional menu, as in a
138 * hierarchical menu system.
139 *
140 * @param e the mouse event; not used
141 */
142 public void mouseEntered(final MouseEvent e) {
143 final JMenu menu = (JMenu)menuItem;
144 if (!menu.isEnabled()) return;
145
146 final MenuSelectionManager manager = MenuSelectionManager.defaultManager();
147 final MenuElement selectedPath[] = manager.getSelectedPath();
148
149 // In Aqua, we always have a menu delay, regardless of where the menu is.
150 if (!(selectedPath.length > 0 && selectedPath[selectedPath.length - 1] == menu.getPopupMenu())) {
151 // the condition below prevents from activating menu in other frame
152 if (!menu.isTopLevelMenu() || (selectedPath.length > 0 &&
153 selectedPath[0] == menu.getParent())) {
154 if (menu.getDelay() == 0) {
155 appendPath(getPath(), menu.getPopupMenu());
156 } else {
157 manager.setSelectedPath(getPath());
158 setupPostTimer(menu);
159 }
160 }
161 }
162 }
163 }
164 }