1 /*
2 * Copyright (c) 2003, 2008, 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 package sun.awt.X11;
26
27 import java.awt.*;
28
29 import java.awt.event.ComponentEvent;
30
31 import sun.util.logging.PlatformLogger;
32
33 import sun.awt.AWTAccessor;
34
35 /**
36 * This class implements window which serves as content window for decorated frames.
37 * Its purpose to provide correct events dispatching for the complex
38 * constructs such as decorated frames.
39 *
40 * It should always be located at (- left inset, - top inset) in the associated
41 * decorated window. So coordinates in it would be the same as java coordinates.
42 */
43 public final class XContentWindow extends XWindow {
44 private static PlatformLogger insLog = PlatformLogger.getLogger("sun.awt.X11.insets.XContentWindow");
45
46 static XContentWindow createContent(XDecoratedPeer parentFrame) {
47 final WindowDimensions dims = parentFrame.getDimensions();
48 Rectangle rec = dims.getBounds();
49 // Fix for - set the location of the content window to the (-left inset, -top inset)
50 Insets ins = dims.getInsets();
51 if (ins != null) {
52 rec.x = -ins.left;
53 rec.y = -ins.top;
54 } else {
55 rec.x = 0;
56 rec.y = 0;
57 }
58 final XContentWindow cw = new XContentWindow(parentFrame, rec);
59 cw.xSetVisible(true);
60 return cw;
61 }
62
63 private final XDecoratedPeer parentFrame;
64
65 // A list of expose events that come when the parentFrame is iconified
66 private final java.util.List<SavedExposeEvent> iconifiedExposeEvents =
67 new java.util.ArrayList<SavedExposeEvent>();
68
69 private XContentWindow(XDecoratedPeer parentFrame, Rectangle bounds) {
70 super((Component)parentFrame.getTarget(), parentFrame.getShell(), bounds);
71 this.parentFrame = parentFrame;
72 }
73
74 void preInit(XCreateWindowParams params) {
75 super.preInit(params);
76 params.putIfNull(BIT_GRAVITY, Integer.valueOf(XConstants.NorthWestGravity));
77 Long eventMask = (Long)params.get(EVENT_MASK);
78 if (eventMask != null) {
79 eventMask = eventMask & ~(XConstants.StructureNotifyMask);
80 params.put(EVENT_MASK, eventMask);
81 }
82 }
83
84 protected String getWMName() {
85 return "Content window";
86 }
87 protected boolean isEventDisabled(XEvent e) {
88 switch (e.get_type()) {
89 // Override parentFrame to receive MouseEnter/Exit
90 case XConstants.EnterNotify:
91 case XConstants.LeaveNotify:
92 return false;
93 // We handle ConfigureNotify specifically in XDecoratedPeer
94 case XConstants.ConfigureNotify:
95 return true;
96 // We don't want SHOWN/HIDDEN on content window since it will duplicate XDecoratedPeer
97 case XConstants.MapNotify:
98 case XConstants.UnmapNotify:
99 return true;
100 default:
101 return super.isEventDisabled(e) || parentFrame.isEventDisabled(e);
102 }
103 }
104
105 // Coordinates are that of the shell
106 void setContentBounds(WindowDimensions dims) {
107 XToolkit.awtLock();
108 try {
109 // Bounds of content window are of the same size as bounds of Java window and with
110 // location as -(insets)
111 Rectangle newBounds = dims.getBounds();
112 Insets in = dims.getInsets();
113 if (in != null) {
114 newBounds.setLocation(-in.left, -in.top);
115 }
116 if (insLog.isLoggable(PlatformLogger.FINE)) insLog.fine("Setting content bounds {0}, old bounds {1}",
117 newBounds, getBounds());
118 // Fix for 5023533:
119 // Change in the size of the content window means, well, change of the size
120 // Change in the location of the content window means change in insets
121 boolean needHandleResize = !(newBounds.equals(getBounds()));
122 reshape(newBounds);
123 if (needHandleResize) {
124 insLog.fine("Sending RESIZED");
125 handleResize(newBounds);
126 }
127 } finally {
128 XToolkit.awtUnlock();
129 }
130 validateSurface();
131 }
132
133 // NOTE: This method may be called by privileged threads.
134 // DO NOT INVOKE CLIENT CODE ON THIS THREAD!
135 public void handleResize(Rectangle bounds) {
136 AWTAccessor.getComponentAccessor().setSize((Component)target, bounds.width, bounds.height);
137 postEvent(new ComponentEvent(target, ComponentEvent.COMPONENT_RESIZED));
138 }
139
140
141 public void handleExposeEvent(Component target, int x, int y, int w, int h) {
142 // TODO: ?
143 // get rid of 'istanceof' by subclassing:
144 // XContentWindow -> XFrameContentWindow
145
146 // Expose event(s) that result from deiconification
147 // come before a deicinofication notification.
148 // We reorder these events by saving all expose events
149 // that come when the frame is iconified. Then we
150 // actually handle saved expose events on deiconification.
151
152 if (parentFrame instanceof XFramePeer &&
153 (((XFramePeer)parentFrame).getState() & java.awt.Frame.ICONIFIED) != 0) {
154 // Save expose events if the frame is iconified
155 // in order to handle them on deiconification.
156 iconifiedExposeEvents.add(new SavedExposeEvent(target, x, y, w, h));
157 } else {
158 // Normal case: [it is not a frame or] the frame is not iconified.
159 super.handleExposeEvent(target, x, y, w, h);
160 }
161 }
162
163 public void handleButtonPressRelease(XEvent xev) {
164 if (xev.get_type() == XConstants.ButtonPress) {
165 Window parentWindow = (Window)parentFrame.getTarget();
166 /*
167 * In case the decorated frame is active but not focused
168 * (that is an owned window is currently focused)
169 * it should be made a focused window.
170 * This is needed to focus the frame when it's clicked
171 * in an empty spot of its content area. See 6886678.
172 */
173 if (parentWindow != null && parentWindow.isActive() && !parentWindow.isFocused()) {
174 parentFrame.requestWindowFocus();
175 }
176 }
177 super.handleButtonPressRelease(xev);
178 }
179
180 void purgeIconifiedExposeEvents() {
181 for (SavedExposeEvent evt : iconifiedExposeEvents) {
182 super.handleExposeEvent(evt.target, evt.x, evt.y, evt.w, evt.h);
183 }
184 iconifiedExposeEvents.clear();
185 }
186
187 private static class SavedExposeEvent {
188 Component target;
189 int x, y, w, h;
190 SavedExposeEvent(Component target, int x, int y, int w, int h) {
191 this.target = target;
192 this.x = x;
193 this.y = y;
194 this.w = w;
195 this.h = h;
196 }
197 }
198
199 public String toString() {
200 return getClass().getName() + "[" + getBounds() + "]";
201 }
202 }