1 /*
2 * Copyright (c) 1996, 2020, 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 sun.awt.windows;
27
28 import java.awt.Component;
29 import java.awt.Dimension;
30 import java.awt.Frame;
31 import java.awt.GraphicsConfiguration;
32 import java.awt.MenuBar;
33 import java.awt.Rectangle;
34 import java.awt.peer.FramePeer;
35 import java.security.AccessController;
36
37 import sun.awt.AWTAccessor;
38 import sun.awt.im.InputMethodManager;
39 import sun.security.action.GetPropertyAction;
40
41 import static sun.java2d.SunGraphicsEnvironment.getGCDeviceBounds;
42 import static sun.java2d.SunGraphicsEnvironment.toDeviceSpaceAbs;
43 import static sun.java2d.SunGraphicsEnvironment.toUserSpace;
44
45 class WFramePeer extends WWindowPeer implements FramePeer {
46
47 static {
48 initIDs();
49 }
50
51 // initialize JNI field and method IDs
52 private static native void initIDs();
53
54 // FramePeer implementation
55 @Override
56 public native void setState(int state);
57 @Override
58 public native int getState();
59
60 // sync target and peer
61 public void setExtendedState(int state) {
62 AWTAccessor.getFrameAccessor().setExtendedState((Frame)target, state);
63 }
64 public int getExtendedState() {
65 return AWTAccessor.getFrameAccessor().getExtendedState((Frame)target);
66 }
67
68 // Convenience methods to save us from trouble of extracting
69 // Rectangle fields in native code.
70 private native void setMaximizedBounds(int x, int y, int w, int h);
71 private native void clearMaximizedBounds();
72
73 private static final boolean keepOnMinimize = "true".equals(
74 AccessController.doPrivileged(
75 new GetPropertyAction(
76 "sun.awt.keepWorkingSetOnMinimize")));
77
78 @Override
79 public final void setMaximizedBounds(Rectangle b) {
80 if (b == null) {
81 clearMaximizedBounds();
82 } else {
83 b = adjustMaximizedBounds(b);
84 setMaximizedBounds(b.x, b.y, b.width, b.height);
85 }
86 }
87
88 /**
89 * The incoming bounds describe the maximized size and position of the
90 * window in the virtual coordinate system. But the window manager expects
91 * that the bounds are based on the size of the primary monitor and
92 * position is based on the actual window monitor, even if the window
93 * ultimately maximizes onto a secondary monitor. And the window manager
94 * adjusts these values to compensate for differences between the primary
95 * monitor and the monitor that displays the window.
96 * <p>
97 * The method translates the incoming bounds to the values acceptable
98 * by the window manager. For more details, please refer to 6699851.
99 */
100 private Rectangle adjustMaximizedBounds(Rectangle bounds) {
101 // All calculations should be done in the device space
102 bounds = toDeviceSpaceAbs(bounds);
103 GraphicsConfiguration gc = getGraphicsConfiguration();
104 Rectangle currentDevBounds = getGCDeviceBounds(gc);
105 // Prepare data for WM_GETMINMAXINFO message.
106 // ptMaxPosition should be in coordinate system of the current monitor,
107 // not the main monitor, or monitor on which we maximize the window.
108 bounds.x -= currentDevBounds.x;
109 bounds.y -= currentDevBounds.y;
110 // ptMaxSize will be used as-is if the size is smaller than the main
111 // monitor. If the size is larger than the main monitor then the
112 // window manager adjusts the size, like this:
113 // result = bounds.w + (current.w - main.w); =>> wrong size
114 // We can try to compensate for this adjustment like this:
115 // result = bounds.w - (current.w - main.w);
116 // but this can result to the size smaller than the main screen, so no
117 // adjustment will be done by the window manager =>> wrong size.
118 // So we skip compensation here and cut the adjustment on
119 // WM_WINDOWPOSCHANGING event.
120 // Note that the result does not depend on the monitor on which we
121 // maximize the window.
122 return bounds;
123 }
124
125 @Override
126 public boolean updateGraphicsData(GraphicsConfiguration gc) {
127 boolean result = super.updateGraphicsData(gc);
128 Rectangle bounds = AWTAccessor.getFrameAccessor().
129 getMaximizedBounds((Frame)target);
130 if (bounds != null) {
131 setMaximizedBounds(bounds);
132 }
133 return result;
134 }
135
136 @Override
137 boolean isTargetUndecorated() {
138 return ((Frame)target).isUndecorated();
139 }
140
141 @Override
142 public void reshape(int x, int y, int width, int height) {
143 if (((Frame)target).isUndecorated()) {
144 super.reshape(x, y, width, height);
145 } else {
146 reshapeFrame(x, y, width, height);
147 }
148 }
149
150 @Override
151 public final Dimension getMinimumSize() {
152 GraphicsConfiguration gc = getGraphicsConfiguration();
153 Dimension d = new Dimension();
154 if (!((Frame)target).isUndecorated()) {
155 d.setSize(toUserSpace(gc, getSysMinWidth(), getSysMinHeight()));
156 }
157 if (((Frame) target).getMenuBar() != null) {
158 d.height += toUserSpace(gc, 0, getSysMenuHeight()).height;
159 }
160 return d;
161 }
162
163 // Note: Because this method calls resize(), which may be overridden
164 // by client code, this method must not be executed on the toolkit
165 // thread.
166 @Override
167 public void setMenuBar(MenuBar mb) {
168 WMenuBarPeer mbPeer = (WMenuBarPeer) WToolkit.targetToPeer(mb);
169 if (mbPeer != null) {
170 if (mbPeer.framePeer != this) {
171 mb.removeNotify();
172 mb.addNotify();
173 mbPeer = (WMenuBarPeer) WToolkit.targetToPeer(mb);
174 if (mbPeer != null && mbPeer.framePeer != this) {
175 throw new IllegalStateException("Wrong parent peer");
176 }
177 }
178 if (mbPeer != null) {
179 addChildPeer(mbPeer);
180 }
181 }
182 setMenuBar0(mbPeer);
183 updateInsets(insets_);
184 }
185
186 // Note: Because this method calls resize(), which may be overridden
187 // by client code, this method must not be executed on the toolkit
188 // thread.
189 private native void setMenuBar0(WMenuBarPeer mbPeer);
190
191 // Toolkit & peer internals
192
193 WFramePeer(Frame target) {
194 super(target);
195
196 InputMethodManager imm = InputMethodManager.getInstance();
197 String menuString = imm.getTriggerMenuString();
198 if (menuString != null)
199 {
200 pSetIMMOption(menuString);
201 }
202 }
203
204 native void createAwtFrame(WComponentPeer parent);
205 @Override
206 void create(WComponentPeer parent) {
207 preCreate(parent);
208 createAwtFrame(parent);
209 }
210
211 @Override
212 void initialize() {
213 super.initialize();
214
215 Frame target = (Frame)this.target;
216
217 if (target.getTitle() != null) {
218 setTitle(target.getTitle());
219 }
220 setResizable(target.isResizable());
221 setState(target.getExtendedState());
222 }
223
224 private static native int getSysMenuHeight();
225
226 native void pSetIMMOption(String option);
227 void notifyIMMOptionChange(){
228 InputMethodManager.getInstance().notifyChangeRequest((Component)target);
229 }
230
231 @Override
232 public void setBoundsPrivate(int x, int y, int width, int height) {
233 setBounds(x, y, width, height, SET_BOUNDS);
234 }
235 @Override
236 public Rectangle getBoundsPrivate() {
237 return getBounds();
238 }
239
240 // TODO: implement it in peers. WLightweightFramePeer may implement lw version.
241 @Override
242 public void emulateActivation(boolean activate) {
243 synthesizeWmActivate(activate);
244 }
245
246 private native void synthesizeWmActivate(boolean activate);
247 }