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 absX = locationOnScreen.x + x;
79 int absY = 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, absX, absY);
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 Point locationOnScreen = getLocationOnScreen();
96 int absX = locationOnScreen.x + x;
97 int absY = locationOnScreen.y + y;
98
99 responder.handleScrollEvent(x, y, absX, absY, modifierFlags, deltaX,
100 deltaY, NSEvent.SCROLL_PHASE_UNSUPPORTED);
101 }
102
103 public void handleKeyEvent(int eventType, int modifierFlags, String characters,
104 String charsIgnoringMods, boolean isRepeat, short keyCode,
105 boolean needsKeyTyped) {
106 responder.handleKeyEvent(eventType, modifierFlags, characters, charsIgnoringMods,
107 keyCode, needsKeyTyped, isRepeat);
108 }
109
110 public void handleInputEvent(String text) {
111 responder.handleInputEvent(text);
112 }
113
114 // handleFocusEvent is called when the applet becames focused/unfocused.
115 // This method can be called from different threads.
116 public void handleFocusEvent(boolean focused) {
117 synchronized (classLock) {
118 // In some cases an applet may not receive the focus lost event
119 // from the parent window (see 8012330)
120 globalFocusedWindow = (focused) ? this
121 : ((globalFocusedWindow == this) ? null : globalFocusedWindow);
122 }
123 if (globalFocusedWindow == this) {
124 // see bug 8010925
125 // we can't put this to handleWindowFocusEvent because
126 // it won't be invoced if focuse is moved to a html element
127 // on the same page.
128 CClipboard clipboard = (CClipboard) Toolkit.getDefaultToolkit().getSystemClipboard();
129 clipboard.checkPasteboardAndNotify();
130 }
131 if (parentWindowActive) {
132 responder.handleWindowFocusEvent(focused, null);
133 }
134 }
135
136 /**
137 * When the parent window is activated this method is called for all EmbeddedFrames in it.
138 *
139 * For the CEmbeddedFrame which had focus before the deactivation this method triggers
140 * focus events in the following order:
141 * 1. WINDOW_ACTIVATED for this EmbeddedFrame
142 * 2. WINDOW_GAINED_FOCUS for this EmbeddedFrame
143 * 3. FOCUS_GAINED for the most recent focus owner in this EmbeddedFrame
144 *
145 * The caller must not requestFocus on the EmbeddedFrame together with calling this method.
146 *
147 * @param parentWindowActive true if the window is activated, false otherwise
148 */
149 // handleWindowFocusEvent is called for all applets, when the browser
150 // becomes active/inactive. This event should be filtered out for
151 // non-focused applet. This method can be called from different threads.
152 public void handleWindowFocusEvent(boolean parentWindowActive) {
153 this.parentWindowActive = parentWindowActive;
154 // If several applets are running in different browser's windows, it is necessary to
155 // detect the switching between the parent windows and update globalFocusedWindow accordingly.
156 synchronized (classLock) {
157 if (!parentWindowActive) {
158 this.browserWindowFocusedApplet = globalFocusedWindow;
159 }
160 if (parentWindowActive && globalFocusedWindow != this && isParentWindowChanged()) {
161 // It looks like we have switched to another browser window, let's restore focus to
162 // the previously focused applet in this window. If no applets were focused in the
163 // window, we will set focus to the first applet in the window.
164 globalFocusedWindow = (this.browserWindowFocusedApplet != null) ? this.browserWindowFocusedApplet
165 : this;
166 }
167 }
168 // ignore focus "lost" native request as it may mistakenly
169 // deactivate active window (see 8001161)
170 if (globalFocusedWindow == this) {
171 responder.handleWindowFocusEvent(parentWindowActive, null);
172 }
173 }
174
175 public boolean isParentWindowActive() {
176 return parentWindowActive;
177 }
178
179 private boolean isParentWindowChanged() {
180 // If globalFocusedWindow is located at inactive parent window or null, we have swithed to
181 // another window.
182 return globalFocusedWindow != null ? !globalFocusedWindow.isParentWindowActive() : true;
183 }
184 }