jdk/src/macosx/classes/sun/lwawt/macosx/CPlatformResponder.java - edge/openjdk - Git at Google

 /*
  * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */

 package sun.lwawt.macosx;

 import sun.awt.SunToolkit;
 import sun.lwawt.LWWindowPeer;
 import sun.lwawt.PlatformEventNotifier;

 import java.awt.Toolkit;
 import java.awt.event.MouseEvent;
 import java.awt.event.InputEvent;
 import java.awt.event.MouseWheelEvent;
 import java.awt.event.KeyEvent;

 /**
  * Translates NSEvents/NPCocoaEvents into AWT events.
  */
 final class CPlatformResponder {

     private final PlatformEventNotifier eventNotifier;
     private final boolean isNpapiCallback;
     private int lastKeyPressCode = KeyEvent.VK_UNDEFINED;

     CPlatformResponder(final PlatformEventNotifier eventNotifier,
                        final boolean isNpapiCallback) {
         this.eventNotifier = eventNotifier;
         this.isNpapiCallback = isNpapiCallback;
     }

     /**
      * Handles mouse events.
      */
     void handleMouseEvent(int eventType, int modifierFlags, int buttonNumber,
                           int clickCount, int x, int y, int absoluteX,
                           int absoluteY) {
         final SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit();
         if ((buttonNumber > 2 && !tk.areExtraMouseButtonsEnabled())
                 || buttonNumber > tk.getNumberOfButtons() - 1) {
             return;
         }

         int jeventType = isNpapiCallback ? NSEvent.npToJavaEventType(eventType) :
                                            NSEvent.nsToJavaEventType(eventType);

         int jbuttonNumber = MouseEvent.NOBUTTON;
         int jclickCount = 0;

         if (jeventType != MouseEvent.MOUSE_MOVED &&
             jeventType != MouseEvent.MOUSE_ENTERED &&
             jeventType != MouseEvent.MOUSE_EXITED)
         {
             jbuttonNumber = NSEvent.nsToJavaButton(buttonNumber);
             jclickCount = clickCount;
         }

         int jmodifiers = NSEvent.nsToJavaMouseModifiers(buttonNumber,
                                                         modifierFlags);
         boolean jpopupTrigger = NSEvent.isPopupTrigger(jmodifiers);

         eventNotifier.notifyMouseEvent(jeventType, System.currentTimeMillis(), jbuttonNumber,
                 x, y, absoluteX, absoluteY, jmodifiers, jclickCount,
                 jpopupTrigger, null);
     }

     /**
      * Handles scroll events.
      */
     void handleScrollEvent(final int x, final int y, final int modifierFlags,
                            final double deltaX, final double deltaY) {
         final int buttonNumber = CocoaConstants.kCGMouseButtonCenter;
         int jmodifiers = NSEvent.nsToJavaMouseModifiers(buttonNumber,
                                                         modifierFlags);
         final boolean isShift = (jmodifiers & InputEvent.SHIFT_DOWN_MASK) != 0;

         // Vertical scroll.
         if (!isShift && deltaY != 0.0) {
             dispatchScrollEvent(x, y, jmodifiers, deltaY);
         }
         // Horizontal scroll or shirt+vertical scroll.
         final double delta = isShift && deltaY != 0.0 ? deltaY : deltaX;
         if (delta != 0.0) {
             jmodifiers |= InputEvent.SHIFT_DOWN_MASK;
             dispatchScrollEvent(x, y, jmodifiers, delta);
         }
     }

     private void dispatchScrollEvent(final int x, final int y,
                                      final int modifiers, final double delta) {
         final long when = System.currentTimeMillis();
         final int scrollType = MouseWheelEvent.WHEEL_UNIT_SCROLL;
         final int scrollAmount = 1;
         int wheelRotation = (int) delta;
         int signum = (int) Math.signum(delta);
         if (signum * delta < 1) {
             wheelRotation = signum;
         }
         // invert the wheelRotation for the peer
         eventNotifier.notifyMouseWheelEvent(when, x, y, modifiers, scrollType,
                 scrollAmount, -wheelRotation, -delta, null);
     }

     /**
      * Handles key events.
      */
     void handleKeyEvent(int eventType, int modifierFlags, String chars, String charsIgnoringModifiers,
                         short keyCode, boolean needsKeyTyped, boolean needsKeyReleased) {
         boolean isFlagsChangedEvent =
             isNpapiCallback ? (eventType == CocoaConstants.NPCocoaEventFlagsChanged) :
                               (eventType == CocoaConstants.NSFlagsChanged);

         int jeventType = KeyEvent.KEY_PRESSED;
         int jkeyCode = KeyEvent.VK_UNDEFINED;
         int jkeyLocation = KeyEvent.KEY_LOCATION_UNKNOWN;
         boolean postsTyped = false;

         char testChar = KeyEvent.CHAR_UNDEFINED;
         boolean isDeadChar = (chars!= null && chars.length() == 0);

         if (isFlagsChangedEvent) {
             int[] in = new int[] {modifierFlags, keyCode};
             int[] out = new int[3]; // [jkeyCode, jkeyLocation, jkeyType]

             NSEvent.nsKeyModifiersToJavaKeyInfo(in, out);

             jkeyCode = out[0];
             jkeyLocation = out[1];
             jeventType = out[2];
         } else {
             if (chars != null && chars.length() > 0) {
                 testChar = chars.charAt(0);
             }

             char testCharIgnoringModifiers = charsIgnoringModifiers != null && charsIgnoringModifiers.length() > 0 ?
                     charsIgnoringModifiers.charAt(0) : KeyEvent.CHAR_UNDEFINED;

             int[] in = new int[] {testCharIgnoringModifiers, isDeadChar ? 1 : 0, modifierFlags, keyCode};
             int[] out = new int[3]; // [jkeyCode, jkeyLocation, deadChar]

             postsTyped = NSEvent.nsToJavaKeyInfo(in, out);
             if (!postsTyped) {
                 testChar = KeyEvent.CHAR_UNDEFINED;
             }

             if(isDeadChar){
                 testChar = (char) out[2];
                 if(testChar == 0){
                     return;
                 }
             }

             jkeyCode = out[0];
             jkeyLocation = out[1];
             jeventType = isNpapiCallback ? NSEvent.npToJavaEventType(eventType) :
                                            NSEvent.nsToJavaEventType(eventType);
         }

         char javaChar = NSEvent.nsToJavaChar(testChar, modifierFlags);
         // Some keys may generate a KEY_TYPED, but we can't determine
         // what that character is. That's likely a bug, but for now we
         // just check for CHAR_UNDEFINED.
         if (javaChar == KeyEvent.CHAR_UNDEFINED) {
             postsTyped = false;
         }


         int jmodifiers = NSEvent.nsToJavaKeyModifiers(modifierFlags);
         long when = System.currentTimeMillis();

         if (jeventType == KeyEvent.KEY_PRESSED) {
             lastKeyPressCode = jkeyCode;
         }
         eventNotifier.notifyKeyEvent(jeventType, when, jmodifiers,
                 jkeyCode, javaChar, jkeyLocation);

         // Current browser may be sending input events, so don't
         // post the KEY_TYPED here.
         postsTyped &= needsKeyTyped;

         // That's the reaction on the PRESSED (not RELEASED) event as it comes to
         // appear in MacOSX.
         // Modifier keys (shift, etc) don't want to send TYPED events.
         // On the other hand we don't want to generate keyTyped events
         // for clipboard related shortcuts like Meta + [CVX]
         if (jeventType == KeyEvent.KEY_PRESSED && postsTyped &&
                 (jmodifiers & KeyEvent.META_DOWN_MASK) == 0) {
             // Enter and Space keys finish the input method processing,
             // KEY_TYPED and KEY_RELEASED events for them are synthesized in handleInputEvent.
             if (needsKeyReleased && (jkeyCode == KeyEvent.VK_ENTER || jkeyCode == KeyEvent.VK_SPACE)) {
                 return;
             }
             eventNotifier.notifyKeyEvent(KeyEvent.KEY_TYPED, when, jmodifiers,
                     KeyEvent.VK_UNDEFINED, javaChar,
                     KeyEvent.KEY_LOCATION_UNKNOWN);
             //If events come from Firefox, released events should also be generated.
             if (needsKeyReleased) {
                 eventNotifier.notifyKeyEvent(KeyEvent.KEY_RELEASED, when, jmodifiers,
                         jkeyCode, javaChar,
                         KeyEvent.KEY_LOCATION_UNKNOWN);
             }
         }
     }

     void handleInputEvent(String text) {
         if (text != null) {
             int index = 0, length = text.length();
             char c = 0;
             while (index < length) {
                 c = text.charAt(index);
                 eventNotifier.notifyKeyEvent(KeyEvent.KEY_TYPED,
                         System.currentTimeMillis(),
                         0, KeyEvent.VK_UNDEFINED, c,
                         KeyEvent.KEY_LOCATION_UNKNOWN);
                 index++;
             }
             eventNotifier.notifyKeyEvent(KeyEvent.KEY_RELEASED,
                     System.currentTimeMillis(),
                     0, lastKeyPressCode, c,
                     KeyEvent.KEY_LOCATION_UNKNOWN);
         }
     }

     void handleWindowFocusEvent(boolean gained, LWWindowPeer opposite) {
         eventNotifier.notifyActivation(gained, opposite);
     }
 }
	/*
	* Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package sun.lwawt.macosx;

	import sun.awt.SunToolkit;
	import sun.lwawt.LWWindowPeer;
	import sun.lwawt.PlatformEventNotifier;

	import java.awt.Toolkit;
	import java.awt.event.MouseEvent;
	import java.awt.event.InputEvent;
	import java.awt.event.MouseWheelEvent;
	import java.awt.event.KeyEvent;

	/**
	* Translates NSEvents/NPCocoaEvents into AWT events.
	*/
	final class CPlatformResponder {

	private final PlatformEventNotifier eventNotifier;
	private final boolean isNpapiCallback;
	private int lastKeyPressCode = KeyEvent.VK_UNDEFINED;

	CPlatformResponder(final PlatformEventNotifier eventNotifier,
	final boolean isNpapiCallback) {
	this.eventNotifier = eventNotifier;
	this.isNpapiCallback = isNpapiCallback;
	}

	/**
	* Handles mouse events.
	*/
	void handleMouseEvent(int eventType, int modifierFlags, int buttonNumber,
	int clickCount, int x, int y, int absoluteX,
	int absoluteY) {
	final SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit();
	if ((buttonNumber > 2 && !tk.areExtraMouseButtonsEnabled())
	\|\| buttonNumber > tk.getNumberOfButtons() - 1) {
	return;
	}

	int jeventType = isNpapiCallback ? NSEvent.npToJavaEventType(eventType) :
	NSEvent.nsToJavaEventType(eventType);

	int jbuttonNumber = MouseEvent.NOBUTTON;
	int jclickCount = 0;

	if (jeventType != MouseEvent.MOUSE_MOVED &&
	jeventType != MouseEvent.MOUSE_ENTERED &&
	jeventType != MouseEvent.MOUSE_EXITED)
	{
	jbuttonNumber = NSEvent.nsToJavaButton(buttonNumber);
	jclickCount = clickCount;
	}

	int jmodifiers = NSEvent.nsToJavaMouseModifiers(buttonNumber,
	modifierFlags);
	boolean jpopupTrigger = NSEvent.isPopupTrigger(jmodifiers);

	eventNotifier.notifyMouseEvent(jeventType, System.currentTimeMillis(), jbuttonNumber,
	x, y, absoluteX, absoluteY, jmodifiers, jclickCount,
	jpopupTrigger, null);
	}

	/**
	* Handles scroll events.
	*/
	void handleScrollEvent(final int x, final int y, final int modifierFlags,
	final double deltaX, final double deltaY) {
	final int buttonNumber = CocoaConstants.kCGMouseButtonCenter;
	int jmodifiers = NSEvent.nsToJavaMouseModifiers(buttonNumber,
	modifierFlags);
	final boolean isShift = (jmodifiers & InputEvent.SHIFT_DOWN_MASK) != 0;

	// Vertical scroll.
	if (!isShift && deltaY != 0.0) {
	dispatchScrollEvent(x, y, jmodifiers, deltaY);
	}
	// Horizontal scroll or shirt+vertical scroll.
	final double delta = isShift && deltaY != 0.0 ? deltaY : deltaX;
	if (delta != 0.0) {
	jmodifiers \|= InputEvent.SHIFT_DOWN_MASK;
	dispatchScrollEvent(x, y, jmodifiers, delta);
	}
	}

	private void dispatchScrollEvent(final int x, final int y,
	final int modifiers, final double delta) {
	final long when = System.currentTimeMillis();
	final int scrollType = MouseWheelEvent.WHEEL_UNIT_SCROLL;
	final int scrollAmount = 1;
	int wheelRotation = (int) delta;
	int signum = (int) Math.signum(delta);
	if (signum * delta < 1) {
	wheelRotation = signum;
	}
	// invert the wheelRotation for the peer
	eventNotifier.notifyMouseWheelEvent(when, x, y, modifiers, scrollType,
	scrollAmount, -wheelRotation, -delta, null);
	}

	/**
	* Handles key events.
	*/
	void handleKeyEvent(int eventType, int modifierFlags, String chars, String charsIgnoringModifiers,
	short keyCode, boolean needsKeyTyped, boolean needsKeyReleased) {
	boolean isFlagsChangedEvent =
	isNpapiCallback ? (eventType == CocoaConstants.NPCocoaEventFlagsChanged) :
	(eventType == CocoaConstants.NSFlagsChanged);

	int jeventType = KeyEvent.KEY_PRESSED;
	int jkeyCode = KeyEvent.VK_UNDEFINED;
	int jkeyLocation = KeyEvent.KEY_LOCATION_UNKNOWN;
	boolean postsTyped = false;

	char testChar = KeyEvent.CHAR_UNDEFINED;
	boolean isDeadChar = (chars!= null && chars.length() == 0);

	if (isFlagsChangedEvent) {
	int[] in = new int[] {modifierFlags, keyCode};
	int[] out = new int[3]; // [jkeyCode, jkeyLocation, jkeyType]

	NSEvent.nsKeyModifiersToJavaKeyInfo(in, out);

	jkeyCode = out[0];
	jkeyLocation = out[1];
	jeventType = out[2];
	} else {
	if (chars != null && chars.length() > 0) {
	testChar = chars.charAt(0);
	}

	char testCharIgnoringModifiers = charsIgnoringModifiers != null && charsIgnoringModifiers.length() > 0 ?
	charsIgnoringModifiers.charAt(0) : KeyEvent.CHAR_UNDEFINED;

	int[] in = new int[] {testCharIgnoringModifiers, isDeadChar ? 1 : 0, modifierFlags, keyCode};
	int[] out = new int[3]; // [jkeyCode, jkeyLocation, deadChar]

	postsTyped = NSEvent.nsToJavaKeyInfo(in, out);
	if (!postsTyped) {
	testChar = KeyEvent.CHAR_UNDEFINED;
	}

	if(isDeadChar){
	testChar = (char) out[2];
	if(testChar == 0){
	return;
	}
	}

	jkeyCode = out[0];
	jkeyLocation = out[1];
	jeventType = isNpapiCallback ? NSEvent.npToJavaEventType(eventType) :
	NSEvent.nsToJavaEventType(eventType);
	}

	char javaChar = NSEvent.nsToJavaChar(testChar, modifierFlags);
	// Some keys may generate a KEY_TYPED, but we can't determine
	// what that character is. That's likely a bug, but for now we
	// just check for CHAR_UNDEFINED.
	if (javaChar == KeyEvent.CHAR_UNDEFINED) {
	postsTyped = false;
	}


	int jmodifiers = NSEvent.nsToJavaKeyModifiers(modifierFlags);
	long when = System.currentTimeMillis();

	if (jeventType == KeyEvent.KEY_PRESSED) {
	lastKeyPressCode = jkeyCode;
	}
	eventNotifier.notifyKeyEvent(jeventType, when, jmodifiers,
	jkeyCode, javaChar, jkeyLocation);

	// Current browser may be sending input events, so don't
	// post the KEY_TYPED here.
	postsTyped &= needsKeyTyped;

	// That's the reaction on the PRESSED (not RELEASED) event as it comes to
	// appear in MacOSX.
	// Modifier keys (shift, etc) don't want to send TYPED events.
	// On the other hand we don't want to generate keyTyped events
	// for clipboard related shortcuts like Meta + [CVX]
	if (jeventType == KeyEvent.KEY_PRESSED && postsTyped &&
	(jmodifiers & KeyEvent.META_DOWN_MASK) == 0) {
	// Enter and Space keys finish the input method processing,
	// KEY_TYPED and KEY_RELEASED events for them are synthesized in handleInputEvent.
	if (needsKeyReleased && (jkeyCode == KeyEvent.VK_ENTER \|\| jkeyCode == KeyEvent.VK_SPACE)) {
	return;
	}
	eventNotifier.notifyKeyEvent(KeyEvent.KEY_TYPED, when, jmodifiers,
	KeyEvent.VK_UNDEFINED, javaChar,
	KeyEvent.KEY_LOCATION_UNKNOWN);
	//If events come from Firefox, released events should also be generated.
	if (needsKeyReleased) {
	eventNotifier.notifyKeyEvent(KeyEvent.KEY_RELEASED, when, jmodifiers,
	jkeyCode, javaChar,
	KeyEvent.KEY_LOCATION_UNKNOWN);
	}
	}
	}

	void handleInputEvent(String text) {
	if (text != null) {
	int index = 0, length = text.length();
	char c = 0;
	while (index < length) {
	c = text.charAt(index);
	eventNotifier.notifyKeyEvent(KeyEvent.KEY_TYPED,
	System.currentTimeMillis(),
	0, KeyEvent.VK_UNDEFINED, c,
	KeyEvent.KEY_LOCATION_UNKNOWN);
	index++;
	}
	eventNotifier.notifyKeyEvent(KeyEvent.KEY_RELEASED,
	System.currentTimeMillis(),
	0, lastKeyPressCode, c,
	KeyEvent.KEY_LOCATION_UNKNOWN);
	}
	}

	void handleWindowFocusEvent(boolean gained, LWWindowPeer opposite) {
	eventNotifier.notifyActivation(gained, opposite);
	}
	}