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 package sun.lwawt.macosx; 27 28 import sun.awt.SunToolkit; 29 import sun.lwawt.LWWindowPeer; 30 import sun.lwawt.PlatformEventNotifier; 31 32 import java.awt.Toolkit; 33 import java.awt.event.MouseEvent; 34 import java.awt.event.InputEvent; 35 import java.awt.event.MouseWheelEvent; 36 import java.awt.event.KeyEvent; 37 38 /** 39 * Translates NSEvents/NPCocoaEvents into AWT events. 40 */ 41 final class CPlatformResponder { 42 43 private final PlatformEventNotifier eventNotifier; 44 private final boolean isNpapiCallback; 45 private int lastKeyPressCode = KeyEvent.VK_UNDEFINED; 46 47 CPlatformResponder(final PlatformEventNotifier eventNotifier, 48 final boolean isNpapiCallback) { 49 this.eventNotifier = eventNotifier; 50 this.isNpapiCallback = isNpapiCallback; 51 } 52 53 /** 54 * Handles mouse events. 55 */ 56 void handleMouseEvent(int eventType, int modifierFlags, int buttonNumber, 57 int clickCount, int x, int y, int absoluteX, 58 int absoluteY) { 59 final SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit(); 60 if ((buttonNumber > 2 && !tk.areExtraMouseButtonsEnabled()) 61 || buttonNumber > tk.getNumberOfButtons() - 1) { 62 return; 63 } 64 65 int jeventType = isNpapiCallback ? NSEvent.npToJavaEventType(eventType) : 66 NSEvent.nsToJavaEventType(eventType); 67 68 int jbuttonNumber = MouseEvent.NOBUTTON; 69 int jclickCount = 0; 70 71 if (jeventType != MouseEvent.MOUSE_MOVED && 72 jeventType != MouseEvent.MOUSE_ENTERED && 73 jeventType != MouseEvent.MOUSE_EXITED) 74 { 75 jbuttonNumber = NSEvent.nsToJavaButton(buttonNumber); 76 jclickCount = clickCount; 77 } 78 79 int jmodifiers = NSEvent.nsToJavaMouseModifiers(buttonNumber, 80 modifierFlags); 81 boolean jpopupTrigger = NSEvent.isPopupTrigger(jmodifiers); 82 83 eventNotifier.notifyMouseEvent(jeventType, System.currentTimeMillis(), jbuttonNumber, 84 x, y, absoluteX, absoluteY, jmodifiers, jclickCount, 85 jpopupTrigger, null); 86 } 87 88 /** 89 * Handles scroll events. 90 */ 91 void handleScrollEvent(final int x, final int y, final int modifierFlags, 92 final double deltaX, final double deltaY) { 93 final int buttonNumber = CocoaConstants.kCGMouseButtonCenter; 94 int jmodifiers = NSEvent.nsToJavaMouseModifiers(buttonNumber, 95 modifierFlags); 96 final boolean isShift = (jmodifiers & InputEvent.SHIFT_DOWN_MASK) != 0; 97 98 // Vertical scroll. 99 if (!isShift && deltaY != 0.0) { 100 dispatchScrollEvent(x, y, jmodifiers, deltaY); 101 } 102 // Horizontal scroll or shirt+vertical scroll. 103 final double delta = isShift && deltaY != 0.0 ? deltaY : deltaX; 104 if (delta != 0.0) { 105 jmodifiers |= InputEvent.SHIFT_DOWN_MASK; 106 dispatchScrollEvent(x, y, jmodifiers, delta); 107 } 108 } 109 110 private void dispatchScrollEvent(final int x, final int y, 111 final int modifiers, final double delta) { 112 final long when = System.currentTimeMillis(); 113 final int scrollType = MouseWheelEvent.WHEEL_UNIT_SCROLL; 114 final int scrollAmount = 1; 115 int wheelRotation = (int) delta; 116 int signum = (int) Math.signum(delta); 117 if (signum * delta < 1) { 118 wheelRotation = signum; 119 } 120 // invert the wheelRotation for the peer 121 eventNotifier.notifyMouseWheelEvent(when, x, y, modifiers, scrollType, 122 scrollAmount, -wheelRotation, -delta, null); 123 } 124 125 /** 126 * Handles key events. 127 */ 128 void handleKeyEvent(int eventType, int modifierFlags, String chars, String charsIgnoringModifiers, 129 short keyCode, boolean needsKeyTyped, boolean needsKeyReleased) { 130 boolean isFlagsChangedEvent = 131 isNpapiCallback ? (eventType == CocoaConstants.NPCocoaEventFlagsChanged) : 132 (eventType == CocoaConstants.NSFlagsChanged); 133 134 int jeventType = KeyEvent.KEY_PRESSED; 135 int jkeyCode = KeyEvent.VK_UNDEFINED; 136 int jkeyLocation = KeyEvent.KEY_LOCATION_UNKNOWN; 137 boolean postsTyped = false; 138 139 char testChar = KeyEvent.CHAR_UNDEFINED; 140 boolean isDeadChar = (chars!= null && chars.length() == 0); 141 142 if (isFlagsChangedEvent) { 143 int[] in = new int[] {modifierFlags, keyCode}; 144 int[] out = new int[3]; // [jkeyCode, jkeyLocation, jkeyType] 145 146 NSEvent.nsKeyModifiersToJavaKeyInfo(in, out); 147 148 jkeyCode = out[0]; 149 jkeyLocation = out[1]; 150 jeventType = out[2]; 151 } else { 152 if (chars != null && chars.length() > 0) { 153 testChar = chars.charAt(0); 154 } 155 156 char testCharIgnoringModifiers = charsIgnoringModifiers != null && charsIgnoringModifiers.length() > 0 ? 157 charsIgnoringModifiers.charAt(0) : KeyEvent.CHAR_UNDEFINED; 158 159 int[] in = new int[] {testCharIgnoringModifiers, isDeadChar ? 1 : 0, modifierFlags, keyCode}; 160 int[] out = new int[3]; // [jkeyCode, jkeyLocation, deadChar] 161 162 postsTyped = NSEvent.nsToJavaKeyInfo(in, out); 163 if (!postsTyped) { 164 testChar = KeyEvent.CHAR_UNDEFINED; 165 } 166 167 if(isDeadChar){ 168 testChar = (char) out[2]; 169 if(testChar == 0){ 170 return; 171 } 172 } 173 174 jkeyCode = out[0]; 175 jkeyLocation = out[1]; 176 jeventType = isNpapiCallback ? NSEvent.npToJavaEventType(eventType) : 177 NSEvent.nsToJavaEventType(eventType); 178 } 179 180 char javaChar = NSEvent.nsToJavaChar(testChar, modifierFlags); 181 // Some keys may generate a KEY_TYPED, but we can't determine 182 // what that character is. That's likely a bug, but for now we 183 // just check for CHAR_UNDEFINED. 184 if (javaChar == KeyEvent.CHAR_UNDEFINED) { 185 postsTyped = false; 186 } 187 188 189 int jmodifiers = NSEvent.nsToJavaKeyModifiers(modifierFlags); 190 long when = System.currentTimeMillis(); 191 192 if (jeventType == KeyEvent.KEY_PRESSED) { 193 lastKeyPressCode = jkeyCode; 194 } 195 eventNotifier.notifyKeyEvent(jeventType, when, jmodifiers, 196 jkeyCode, javaChar, jkeyLocation); 197 198 // Current browser may be sending input events, so don't 199 // post the KEY_TYPED here. 200 postsTyped &= needsKeyTyped; 201 202 // That's the reaction on the PRESSED (not RELEASED) event as it comes to 203 // appear in MacOSX. 204 // Modifier keys (shift, etc) don't want to send TYPED events. 205 // On the other hand we don't want to generate keyTyped events 206 // for clipboard related shortcuts like Meta + [CVX] 207 if (jeventType == KeyEvent.KEY_PRESSED && postsTyped && 208 (jmodifiers & KeyEvent.META_DOWN_MASK) == 0) { 209 // Enter and Space keys finish the input method processing, 210 // KEY_TYPED and KEY_RELEASED events for them are synthesized in handleInputEvent. 211 if (needsKeyReleased && (jkeyCode == KeyEvent.VK_ENTER || jkeyCode == KeyEvent.VK_SPACE)) { 212 return; 213 } 214 eventNotifier.notifyKeyEvent(KeyEvent.KEY_TYPED, when, jmodifiers, 215 KeyEvent.VK_UNDEFINED, javaChar, 216 KeyEvent.KEY_LOCATION_UNKNOWN); 217 //If events come from Firefox, released events should also be generated. 218 if (needsKeyReleased) { 219 eventNotifier.notifyKeyEvent(KeyEvent.KEY_RELEASED, when, jmodifiers, 220 jkeyCode, javaChar, 221 KeyEvent.KEY_LOCATION_UNKNOWN); 222 } 223 } 224 } 225 226 void handleInputEvent(String text) { 227 if (text != null) { 228 int index = 0, length = text.length(); 229 char c = 0; 230 while (index < length) { 231 c = text.charAt(index); 232 eventNotifier.notifyKeyEvent(KeyEvent.KEY_TYPED, 233 System.currentTimeMillis(), 234 0, KeyEvent.VK_UNDEFINED, c, 235 KeyEvent.KEY_LOCATION_UNKNOWN); 236 index++; 237 } 238 eventNotifier.notifyKeyEvent(KeyEvent.KEY_RELEASED, 239 System.currentTimeMillis(), 240 0, lastKeyPressCode, c, 241 KeyEvent.KEY_LOCATION_UNKNOWN); 242 } 243 } 244 245 void handleWindowFocusEvent(boolean gained, LWWindowPeer opposite) { 246 eventNotifier.notifyActivation(gained, opposite); 247 } 248 }