1 /* 2 * Copyright (c) 2011, 2016, 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 import java.util.Locale; 38 39 /** 40 * Translates NSEvents/NPCocoaEvents into AWT events. 41 */ 42 final class CPlatformResponder { 43 44 private final PlatformEventNotifier eventNotifier; 45 private final boolean isNpapiCallback; 46 private int lastKeyPressCode = KeyEvent.VK_UNDEFINED; 47 48 CPlatformResponder(final PlatformEventNotifier eventNotifier, 49 final boolean isNpapiCallback) { 50 this.eventNotifier = eventNotifier; 51 this.isNpapiCallback = isNpapiCallback; 52 } 53 54 /** 55 * Handles mouse events. 56 */ 57 void handleMouseEvent(int eventType, int modifierFlags, int buttonNumber, 58 int clickCount, int x, int y, int absX, int absY) { 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.nsToJavaModifiers(modifierFlags); 80 boolean jpopupTrigger = NSEvent.isPopupTrigger(jmodifiers); 81 82 eventNotifier.notifyMouseEvent(jeventType, System.currentTimeMillis(), jbuttonNumber, 83 x, y, absX, absY, jmodifiers, jclickCount, 84 jpopupTrigger, null); 85 } 86 87 /** 88 * Handles scroll events. 89 */ 90 void handleScrollEvent(final int x, final int y, final int absX, 91 final int absY, final int modifierFlags, 92 final double deltaX, final double deltaY) { 93 int jmodifiers = NSEvent.nsToJavaModifiers(modifierFlags); 94 final boolean isShift = (jmodifiers & InputEvent.SHIFT_DOWN_MASK) != 0; 95 96 // Vertical scroll. 97 if (!isShift && deltaY != 0.0) { 98 dispatchScrollEvent(x, y, absX, absY, jmodifiers, deltaY); 99 } 100 // Horizontal scroll or shirt+vertical scroll. 101 final double delta = isShift && deltaY != 0.0 ? deltaY : deltaX; 102 if (delta != 0.0) { 103 jmodifiers |= InputEvent.SHIFT_DOWN_MASK; 104 dispatchScrollEvent(x, y, absX, absY, jmodifiers, delta); 105 } 106 } 107 108 private void dispatchScrollEvent(final int x, final int y, final int absX, 109 final int absY, final int modifiers, 110 final double delta) { 111 final long when = System.currentTimeMillis(); 112 final int scrollType = MouseWheelEvent.WHEEL_UNIT_SCROLL; 113 final int scrollAmount = 1; 114 int wheelRotation = (int) delta; 115 int signum = (int) Math.signum(delta); 116 if (signum * delta < 1) { 117 wheelRotation = signum; 118 } 119 // invert the wheelRotation for the peer 120 eventNotifier.notifyMouseWheelEvent(when, x, y, absX, absY, modifiers, 121 scrollType, scrollAmount, 122 -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 // If Pinyin Simplified input method is selected, CAPS_LOCK key is supposed to switch 175 // input to latin letters. 176 // It is necessary to use testCharIgnoringModifiers instead of testChar for event 177 // generation in such case to avoid uppercase letters in text components. 178 LWCToolkit lwcToolkit = (LWCToolkit)Toolkit.getDefaultToolkit(); 179 if (lwcToolkit.getLockingKeyState(KeyEvent.VK_CAPS_LOCK) && 180 Locale.SIMPLIFIED_CHINESE.equals(lwcToolkit.getDefaultKeyboardLocale())) { 181 testChar = testCharIgnoringModifiers; 182 } 183 184 jkeyCode = out[0]; 185 jkeyLocation = out[1]; 186 jeventType = isNpapiCallback ? NSEvent.npToJavaEventType(eventType) : 187 NSEvent.nsToJavaEventType(eventType); 188 } 189 190 char javaChar = NSEvent.nsToJavaChar(testChar, modifierFlags); 191 // Some keys may generate a KEY_TYPED, but we can't determine 192 // what that character is. That's likely a bug, but for now we 193 // just check for CHAR_UNDEFINED. 194 if (javaChar == KeyEvent.CHAR_UNDEFINED) { 195 postsTyped = false; 196 } 197 198 int jmodifiers = NSEvent.nsToJavaModifiers(modifierFlags); 199 long when = System.currentTimeMillis(); 200 201 if (jeventType == KeyEvent.KEY_PRESSED) { 202 lastKeyPressCode = jkeyCode; 203 } 204 eventNotifier.notifyKeyEvent(jeventType, when, jmodifiers, 205 jkeyCode, javaChar, jkeyLocation); 206 207 // Current browser may be sending input events, so don't 208 // post the KEY_TYPED here. 209 postsTyped &= needsKeyTyped; 210 211 // That's the reaction on the PRESSED (not RELEASED) event as it comes to 212 // appear in MacOSX. 213 // Modifier keys (shift, etc) don't want to send TYPED events. 214 // On the other hand we don't want to generate keyTyped events 215 // for clipboard related shortcuts like Meta + [CVX] 216 if (jeventType == KeyEvent.KEY_PRESSED && postsTyped && 217 (jmodifiers & KeyEvent.META_DOWN_MASK) == 0) { 218 // Enter and Space keys finish the input method processing, 219 // KEY_TYPED and KEY_RELEASED events for them are synthesized in handleInputEvent. 220 if (needsKeyReleased && (jkeyCode == KeyEvent.VK_ENTER || jkeyCode == KeyEvent.VK_SPACE)) { 221 return; 222 } 223 eventNotifier.notifyKeyEvent(KeyEvent.KEY_TYPED, when, jmodifiers, 224 KeyEvent.VK_UNDEFINED, javaChar, 225 KeyEvent.KEY_LOCATION_UNKNOWN); 226 //If events come from Firefox, released events should also be generated. 227 if (needsKeyReleased) { 228 eventNotifier.notifyKeyEvent(KeyEvent.KEY_RELEASED, when, jmodifiers, 229 jkeyCode, javaChar, 230 KeyEvent.KEY_LOCATION_UNKNOWN); 231 } 232 } 233 } 234 235 void handleInputEvent(String text) { 236 if (text != null) { 237 int index = 0, length = text.length(); 238 char c = 0; 239 while (index < length) { 240 c = text.charAt(index); 241 eventNotifier.notifyKeyEvent(KeyEvent.KEY_TYPED, 242 System.currentTimeMillis(), 243 0, KeyEvent.VK_UNDEFINED, c, 244 KeyEvent.KEY_LOCATION_UNKNOWN); 245 index++; 246 } 247 eventNotifier.notifyKeyEvent(KeyEvent.KEY_RELEASED, 248 System.currentTimeMillis(), 249 0, lastKeyPressCode, c, 250 KeyEvent.KEY_LOCATION_UNKNOWN); 251 } 252 } 253 254 void handleWindowFocusEvent(boolean gained, LWWindowPeer opposite) { 255 eventNotifier.notifyActivation(gained, opposite); 256 } 257 }