1 /*
2 * Copyright (c) 2011, 2015, 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.AWTAccessor;
34 import sun.awt.EmbeddedFrame;
35 import sun.lwawt.LWWindowPeer;
36
37 @SuppressWarnings("serial") // JDK implementation class
38 public class CEmbeddedFrame extends EmbeddedFrame {
39
40 private CPlatformResponder responder;
41 private static final Object classLock = new Object();
42 private static volatile CEmbeddedFrame globalFocusedWindow;
43 private CEmbeddedFrame browserWindowFocusedApplet;
44 private boolean parentWindowActive = true;
45
46 public CEmbeddedFrame() {
47 show();
48 }
49
50 public void addNotify() {
51 if (!isDisplayable()) {
52 LWCToolkit toolkit = (LWCToolkit)Toolkit.getDefaultToolkit();
53 LWWindowPeer peer = toolkit.createEmbeddedFrame(this);
54 setPeer(peer);
55 responder = new CPlatformResponder(peer, true);
56 }
57 super.addNotify();
58 }
59
60 public void registerAccelerator(AWTKeyStroke stroke) {}
61
62 public void unregisterAccelerator(AWTKeyStroke stroke) {}
63
64 protected long getLayerPtr() {
65 return AWTAccessor.getComponentAccessor().<LWWindowPeer>getPeer(this)
66 .getLayerPtr();
67 }
68
69 // -----------------------------------------------------------------------
70 // SYNTHETIC EVENT DELIVERY
71 // -----------------------------------------------------------------------
72
73 public void handleMouseEvent(int eventType, int modifierFlags, double pluginX,
74 double pluginY, int buttonNumber, int clickCount) {
75 int x = (int)pluginX;
76 int y = (int)pluginY;
77 Point locationOnScreen = getLocationOnScreen();
78 int screenX = locationOnScreen.x + x;
79 int screenY = locationOnScreen.y + y;
80
81 if (eventType == CocoaConstants.NPCocoaEventMouseEntered) {
82 CCursorManager.nativeSetAllowsCursorSetInBackground(true);
83 } else if (eventType == CocoaConstants.NPCocoaEventMouseExited) {
84 CCursorManager.nativeSetAllowsCursorSetInBackground(false);
85 }
86
87 responder.handleMouseEvent(eventType, modifierFlags, buttonNumber,
88 clickCount, x, y, screenX, screenY);
89 }
90
91 public void handleScrollEvent(double pluginX, double pluginY, int modifierFlags,
92 double deltaX, double deltaY, double deltaZ) {
93 int x = (int)pluginX;
94 int y = (int)pluginY;
95
96 responder.handleScrollEvent(x, y, modifierFlags, deltaX, deltaY);
97 }
98
99 public void handleKeyEvent(int eventType, int modifierFlags, String characters,
100 String charsIgnoringMods, boolean isRepeat, short keyCode,
101 boolean needsKeyTyped) {
102 responder.handleKeyEvent(eventType, modifierFlags, characters, charsIgnoringMods,
103 keyCode, needsKeyTyped, isRepeat);
104 }
105
106 public void handleInputEvent(String text) {
107 responder.handleInputEvent(text);
108 }
109
110 // handleFocusEvent is called when the applet becames focused/unfocused.
111 // This method can be called from different threads.
112 public void handleFocusEvent(boolean focused) {
113 synchronized (classLock) {
114 // In some cases an applet may not receive the focus lost event
115 // from the parent window (see 8012330)
116 globalFocusedWindow = (focused) ? this
117 : ((globalFocusedWindow == this) ? null : globalFocusedWindow);
118 }
119 if (globalFocusedWindow == this) {
120 // see bug 8010925
121 // we can't put this to handleWindowFocusEvent because
122 // it won't be invoced if focuse is moved to a html element
123 // on the same page.
124 CClipboard clipboard = (CClipboard) Toolkit.getDefaultToolkit().getSystemClipboard();
125 clipboard.checkPasteboardAndNotify();
126 }
127 if (parentWindowActive) {
128 responder.handleWindowFocusEvent(focused, null);
129 }
130 }
131
132 /**
133 * When the parent window is activated this method is called for all EmbeddedFrames in it.
134 *
135 * For the CEmbeddedFrame which had focus before the deactivation this method triggers
136 * focus events in the following order:
137 * 1. WINDOW_ACTIVATED for this EmbeddedFrame
138 * 2. WINDOW_GAINED_FOCUS for this EmbeddedFrame
139 * 3. FOCUS_GAINED for the most recent focus owner in this EmbeddedFrame
140 *
141 * The caller must not requestFocus on the EmbeddedFrame together with calling this method.
142 *
143 * @param parentWindowActive true if the window is activated, false otherwise
144 */
145 // handleWindowFocusEvent is called for all applets, when the browser
146 // becomes active/inactive. This event should be filtered out for
147 // non-focused applet. This method can be called from different threads.
148 public void handleWindowFocusEvent(boolean parentWindowActive) {
149 this.parentWindowActive = parentWindowActive;
150 // If several applets are running in different browser's windows, it is necessary to
151 // detect the switching between the parent windows and update globalFocusedWindow accordingly.
152 synchronized (classLock) {
153 if (!parentWindowActive) {
154 this.browserWindowFocusedApplet = globalFocusedWindow;
155 }
156 if (parentWindowActive && globalFocusedWindow != this && isParentWindowChanged()) {
157 // It looks like we have switched to another browser window, let's restore focus to
158 // the previously focused applet in this window. If no applets were focused in the
159 // window, we will set focus to the first applet in the window.
160 globalFocusedWindow = (this.browserWindowFocusedApplet != null) ? this.browserWindowFocusedApplet
161 : this;
162 }
163 }
164 // ignore focus "lost" native request as it may mistakenly
165 // deactivate active window (see 8001161)
166 if (globalFocusedWindow == this) {
167 responder.handleWindowFocusEvent(parentWindowActive, null);
168 }
169 }
170
171 public boolean isParentWindowActive() {
172 return parentWindowActive;
173 }
174
175 private boolean isParentWindowChanged() {
176 // If globalFocusedWindow is located at inactive parent window or null, we have swithed to
177 // another window.
178 return globalFocusedWindow != null ? !globalFocusedWindow.isParentWindowActive() : true;
179 }
180 }