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, NSEvent.SCROLL_PHASE_UNSUPPORTED); 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 }