1 /*
2 * Copyright (c) 2011, 2014, 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
27 package sun.lwawt.macosx;
28
29 import java.awt.AWTKeyStroke;
30 import java.awt.Point;
31 import java.awt.Toolkit;
32
33 import sun.awt.EmbeddedFrame;
34 import sun.lwawt.LWWindowPeer;
35
36 @SuppressWarnings("serial") // JDK implementation class
37 public class CEmbeddedFrame extends EmbeddedFrame {
38
39 private CPlatformResponder responder;
40 private static final Object classLock = new Object();
41 private static volatile CEmbeddedFrame globalFocusedWindow;
42 private CEmbeddedFrame pluginFocusedWindow;
43 private boolean parentWindowActive = true;
44
45 public CEmbeddedFrame() {
46 show();
47 }
48
49 public void addNotify() {
50 if (getPeer() == null) {
51 LWCToolkit toolkit = (LWCToolkit)Toolkit.getDefaultToolkit();
52 LWWindowPeer peer = toolkit.createEmbeddedFrame(this);
53 setPeer(peer);
54 responder = new CPlatformResponder(peer, true);
55 }
56 super.addNotify();
57 }
58
59 public void registerAccelerator(AWTKeyStroke stroke) {}
60
61 public void unregisterAccelerator(AWTKeyStroke stroke) {}
62
63 protected long getLayerPtr() {
64 LWWindowPeer peer = (LWWindowPeer)getPeer();
65 return peer.getLayerPtr();
66 }
67
68 // -----------------------------------------------------------------------
69 // SYNTHETIC EVENT DELIVERY
70 // -----------------------------------------------------------------------
71
72 public void handleMouseEvent(int eventType, int modifierFlags, double pluginX,
73 double pluginY, int buttonNumber, int clickCount) {
74 int x = (int)pluginX;
75 int y = (int)pluginY;
76 Point locationOnScreen = getLocationOnScreen();
77 int screenX = locationOnScreen.x + x;
78 int screenY = locationOnScreen.y + y;
79
80 if (eventType == CocoaConstants.NPCocoaEventMouseEntered) {
81 CCursorManager.nativeSetAllowsCursorSetInBackground(true);
82 } else if (eventType == CocoaConstants.NPCocoaEventMouseExited) {
83 CCursorManager.nativeSetAllowsCursorSetInBackground(false);
84 }
85
86 responder.handleMouseEvent(eventType, modifierFlags, buttonNumber,
87 clickCount, x, y, screenX, screenY);
88 }
89
90 public void handleScrollEvent(double pluginX, double pluginY, int modifierFlags,
91 double deltaX, double deltaY, double deltaZ) {
92 int x = (int)pluginX;
93 int y = (int)pluginY;
94
95 responder.handleScrollEvent(x, y, modifierFlags, deltaX, deltaY);
96 }
97
98 public void handleKeyEvent(int eventType, int modifierFlags, String characters,
99 String charsIgnoringMods, boolean isRepeat, short keyCode,
100 boolean needsKeyTyped) {
101 responder.handleKeyEvent(eventType, modifierFlags, characters, charsIgnoringMods,
102 keyCode, needsKeyTyped, isRepeat);
103 }
104
105 public void handleInputEvent(String text) {
106 responder.handleInputEvent(text);
107 }
108
109 // handleFocusEvent is called when the applet becames focused/unfocused.
110 // This method can be called from different threads.
111 public void handleFocusEvent(boolean focused) {
112 synchronized (classLock) {
113 // In some cases an applet may not receive the focus lost event
114 // from the parent window (see 8012330)
115 globalFocusedWindow = (focused) ? this
116 : ((globalFocusedWindow == this) ? null : globalFocusedWindow);
117 }
118 if (globalFocusedWindow == this) {
119 // see bug 8010925
120 // we can't put this to handleWindowFocusEvent because
121 // it won't be invoced if focuse is moved to a html element
122 // on the same page.
123 CClipboard clipboard = (CClipboard) Toolkit.getDefaultToolkit().getSystemClipboard();
124 clipboard.checkPasteboard();
125 }
126 if (parentWindowActive) {
127 responder.handleWindowFocusEvent(focused, null);
128 }
129 }
130
131 /**
132 * When the parent window is activated this method is called for all EmbeddedFrames in it.
133 *
134 * For the CEmbeddedFrame which had focus before the deactivation this method triggers
135 * focus events in the following order:
136 * 1. WINDOW_ACTIVATED for this EmbeddedFrame
137 * 2. WINDOW_GAINED_FOCUS for this EmbeddedFrame
138 * 3. FOCUS_GAINED for the most recent focus owner in this EmbeddedFrame
139 *
140 * The caller must not requestFocus on the EmbeddedFrame together with calling this method.
141 *
142 * @param parentWindowActive true if the window is activated, false otherwise
143 */
144 // handleWindowFocusEvent is called for all applets, when the browser
145 // becomes active/inactive. This event should be filtered out for
146 // non-focused applet. This method can be called from different threads.
147 public void handleWindowFocusEvent(boolean parentWindowActive) {
148 this.parentWindowActive = parentWindowActive;
149 // If several applets are running in different browser's windows, it is necessary to
150 // detect the switching between the parent windows and update globalFocusedWindow accordingly.
151 synchronized (classLock) {
152 if (!parentWindowActive) {
153 this.pluginFocusedWindow = globalFocusedWindow;
154 }
155 if (parentWindowActive && globalFocusedWindow != this && isParentWindowChanged()) {
156 // It looks like we have switched to another browser window, let's restore focus to
157 // the previously focused applet in this window. If no applets were focused in the
158 // window, we will set focus to the first applet in the window.
159 globalFocusedWindow = (this.pluginFocusedWindow != null) ? this.pluginFocusedWindow
160 : this;
161 }
162 }
163 // ignore focus "lost" native request as it may mistakenly
164 // deactivate active window (see 8001161)
165 if (globalFocusedWindow == this && parentWindowActive) {
166 responder.handleWindowFocusEvent(parentWindowActive, null);
167 }
168 }
169
170 public boolean isParentWindowActive() {
171 return parentWindowActive;
172 }
173
174 private boolean isParentWindowChanged() {
175 // If globalFocusedWindow is located at inactive parent window or null, we have swithed to
176 // another window.
177 return globalFocusedWindow != null ? !globalFocusedWindow.isParentWindowActive() : true;
178 }
179 }