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 browserWindowFocusedApplet; 43 private boolean parentWindowActive = true; 44 45 public CEmbeddedFrame() { 46 show(); 47 } 48 49 @SuppressWarnings("deprecation") 50 public void addNotify() { 51 if (getPeer() == null) { 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 @SuppressWarnings("deprecation") 65 protected long getLayerPtr() { 66 LWWindowPeer peer = (LWWindowPeer)getPeer(); 67 return peer.getLayerPtr(); 68 } 69 70 // ----------------------------------------------------------------------- 71 // SYNTHETIC EVENT DELIVERY 72 // ----------------------------------------------------------------------- 73 74 public void handleMouseEvent(int eventType, int modifierFlags, double pluginX, 75 double pluginY, int buttonNumber, int clickCount) { 76 int x = (int)pluginX; 77 int y = (int)pluginY; 78 Point locationOnScreen = getLocationOnScreen(); 79 int screenX = locationOnScreen.x + x; 80 int screenY = locationOnScreen.y + y; 81 82 if (eventType == CocoaConstants.NPCocoaEventMouseEntered) { 83 CCursorManager.nativeSetAllowsCursorSetInBackground(true); 84 } else if (eventType == CocoaConstants.NPCocoaEventMouseExited) { 85 CCursorManager.nativeSetAllowsCursorSetInBackground(false); 86 } 87 88 responder.handleMouseEvent(eventType, modifierFlags, buttonNumber, 89 clickCount, x, y, screenX, screenY); 90 } 91 92 public void handleScrollEvent(double pluginX, double pluginY, int modifierFlags, 93 double deltaX, double deltaY, double deltaZ) { 94 int x = (int)pluginX; 95 int y = (int)pluginY; 96 97 responder.handleScrollEvent(x, y, modifierFlags, deltaX, deltaY); 98 } 99 100 public void handleKeyEvent(int eventType, int modifierFlags, String characters, 101 String charsIgnoringMods, boolean isRepeat, short keyCode, 102 boolean needsKeyTyped) { 103 responder.handleKeyEvent(eventType, modifierFlags, characters, charsIgnoringMods, 104 keyCode, needsKeyTyped, isRepeat); 105 } 106 107 public void handleInputEvent(String text) { 108 responder.handleInputEvent(text); 109 } 110 111 // handleFocusEvent is called when the applet becames focused/unfocused. 112 // This method can be called from different threads. 113 public void handleFocusEvent(boolean focused) { 114 synchronized (classLock) { 115 // In some cases an applet may not receive the focus lost event 116 // from the parent window (see 8012330) 117 globalFocusedWindow = (focused) ? this 118 : ((globalFocusedWindow == this) ? null : globalFocusedWindow); 119 } 120 if (globalFocusedWindow == this) { 121 // see bug 8010925 122 // we can't put this to handleWindowFocusEvent because 123 // it won't be invoced if focuse is moved to a html element 124 // on the same page. 125 CClipboard clipboard = (CClipboard) Toolkit.getDefaultToolkit().getSystemClipboard(); 126 clipboard.checkPasteboard(); 127 } 128 if (parentWindowActive) { 129 responder.handleWindowFocusEvent(focused, null); 130 } 131 } 132 133 /** 134 * When the parent window is activated this method is called for all EmbeddedFrames in it. 135 * 136 * For the CEmbeddedFrame which had focus before the deactivation this method triggers 137 * focus events in the following order: 138 * 1. WINDOW_ACTIVATED for this EmbeddedFrame 139 * 2. WINDOW_GAINED_FOCUS for this EmbeddedFrame 140 * 3. FOCUS_GAINED for the most recent focus owner in this EmbeddedFrame 141 * 142 * The caller must not requestFocus on the EmbeddedFrame together with calling this method. 143 * 144 * @param parentWindowActive true if the window is activated, false otherwise 145 */ 146 // handleWindowFocusEvent is called for all applets, when the browser 147 // becomes active/inactive. This event should be filtered out for 148 // non-focused applet. This method can be called from different threads. 149 public void handleWindowFocusEvent(boolean parentWindowActive) { 150 this.parentWindowActive = parentWindowActive; 151 // If several applets are running in different browser's windows, it is necessary to 152 // detect the switching between the parent windows and update globalFocusedWindow accordingly. 153 synchronized (classLock) { 154 if (!parentWindowActive) { 155 this.browserWindowFocusedApplet = globalFocusedWindow; 156 } 157 if (parentWindowActive && globalFocusedWindow != this && isParentWindowChanged()) { 158 // It looks like we have switched to another browser window, let's restore focus to 159 // the previously focused applet in this window. If no applets were focused in the 160 // window, we will set focus to the first applet in the window. 161 globalFocusedWindow = (this.browserWindowFocusedApplet != null) ? this.browserWindowFocusedApplet 162 : this; 163 } 164 } 165 // ignore focus "lost" native request as it may mistakenly 166 // deactivate active window (see 8001161) 167 if (globalFocusedWindow == this && parentWindowActive) { 168 responder.handleWindowFocusEvent(parentWindowActive, null); 169 } 170 } 171 172 public boolean isParentWindowActive() { 173 return parentWindowActive; 174 } 175 176 private boolean isParentWindowChanged() { 177 // If globalFocusedWindow is located at inactive parent window or null, we have swithed to 178 // another window. 179 return globalFocusedWindow != null ? !globalFocusedWindow.isParentWindowActive() : true; 180 } 181 }