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