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src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformResponder.java

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   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


  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) {


   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


  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 absX, int absY) {

  58         final SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit();
  59         if ((buttonNumber > 2 && !tk.areExtraMouseButtonsEnabled())
  60                 || buttonNumber > tk.getNumberOfButtons() - 1) {
  61             return;
  62         }
  63 
  64         int jeventType = isNpapiCallback ? NSEvent.npToJavaEventType(eventType) :
  65                                            NSEvent.nsToJavaEventType(eventType);
  66 
  67         int jbuttonNumber = MouseEvent.NOBUTTON;
  68         int jclickCount = 0;
  69 
  70         if (jeventType != MouseEvent.MOUSE_MOVED &&
  71             jeventType != MouseEvent.MOUSE_ENTERED &&
  72             jeventType != MouseEvent.MOUSE_EXITED)
  73         {
  74             jbuttonNumber = NSEvent.nsToJavaButton(buttonNumber);
  75             jclickCount = clickCount;
  76         }
  77 
  78         int jmodifiers = NSEvent.nsToJavaMouseModifiers(buttonNumber,
  79                                                         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         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, absX, absY, 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, absX, absY, jmodifiers, delta);
 107         }
 108     }
 109 
 110     private void dispatchScrollEvent(final int x, final int y, final int absX,
 111                                      final int absY, final int modifiers,
 112                                      final double delta) {
 113         final long when = System.currentTimeMillis();
 114         final int scrollType = MouseWheelEvent.WHEEL_UNIT_SCROLL;
 115         final int scrollAmount = 1;
 116         int wheelRotation = (int) delta;
 117         int signum = (int) Math.signum(delta);
 118         if (signum * delta < 1) {
 119             wheelRotation = signum;
 120         }
 121         // invert the wheelRotation for the peer
 122         eventNotifier.notifyMouseWheelEvent(when, x, y, absX, absY, modifiers,
 123                                             scrollType, scrollAmount,
 124                                             -wheelRotation, -delta, null);
 125     }
 126 
 127     /**
 128      * Handles key events.
 129      */
 130     void handleKeyEvent(int eventType, int modifierFlags, String chars, String charsIgnoringModifiers,
 131                         short keyCode, boolean needsKeyTyped, boolean needsKeyReleased) {
 132         boolean isFlagsChangedEvent =
 133             isNpapiCallback ? (eventType == CocoaConstants.NPCocoaEventFlagsChanged) :
 134                               (eventType == CocoaConstants.NSFlagsChanged);
 135 
 136         int jeventType = KeyEvent.KEY_PRESSED;
 137         int jkeyCode = KeyEvent.VK_UNDEFINED;
 138         int jkeyLocation = KeyEvent.KEY_LOCATION_UNKNOWN;
 139         boolean postsTyped = false;
 140 
 141         char testChar = KeyEvent.CHAR_UNDEFINED;
 142         boolean isDeadChar = (chars!= null && chars.length() == 0);
 143 
 144         if (isFlagsChangedEvent) {


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