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 absoluteX,
59 int absoluteY) {
60 final SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit();
61 if ((buttonNumber > 2 && !tk.areExtraMouseButtonsEnabled())
62 || buttonNumber > tk.getNumberOfButtons() - 1) {
63 return;
64 }
65
66 int jeventType = isNpapiCallback ? NSEvent.npToJavaEventType(eventType) :
73 jeventType != MouseEvent.MOUSE_ENTERED &&
74 jeventType != MouseEvent.MOUSE_EXITED)
75 {
76 jbuttonNumber = NSEvent.nsToJavaButton(buttonNumber);
77 jclickCount = clickCount;
78 }
79
80 int jmodifiers = NSEvent.nsToJavaMouseModifiers(buttonNumber,
81 modifierFlags);
82 boolean jpopupTrigger = NSEvent.isPopupTrigger(jmodifiers);
83
84 eventNotifier.notifyMouseEvent(jeventType, System.currentTimeMillis(), jbuttonNumber,
85 x, y, absoluteX, absoluteY, jmodifiers, jclickCount,
86 jpopupTrigger, null);
87 }
88
89 /**
90 * Handles scroll events.
91 */
92 void handleScrollEvent(final int x, final int y, final int modifierFlags,
93 final double deltaX, final double deltaY) {
94 final int buttonNumber = CocoaConstants.kCGMouseButtonCenter;
95 int jmodifiers = NSEvent.nsToJavaMouseModifiers(buttonNumber,
96 modifierFlags);
97 final boolean isShift = (jmodifiers & InputEvent.SHIFT_DOWN_MASK) != 0;
98
99 // Vertical scroll.
100 if (!isShift && deltaY != 0.0) {
101 dispatchScrollEvent(x, y, jmodifiers, deltaY);
102 }
103 // Horizontal scroll or shirt+vertical scroll.
104 final double delta = isShift && deltaY != 0.0 ? deltaY : deltaX;
105 if (delta != 0.0) {
106 jmodifiers |= InputEvent.SHIFT_DOWN_MASK;
107 dispatchScrollEvent(x, y, jmodifiers, delta);
108 }
109 }
110
111 private void dispatchScrollEvent(final int x, final int y,
112 final int modifiers, 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, modifiers, scrollType,
123 scrollAmount, -wheelRotation, -delta, null);
124 }
125
126 /**
127 * Handles key events.
128 */
129 void handleKeyEvent(int eventType, int modifierFlags, String chars, String charsIgnoringModifiers,
130 short keyCode, boolean needsKeyTyped, boolean needsKeyReleased) {
131 boolean isFlagsChangedEvent =
132 isNpapiCallback ? (eventType == CocoaConstants.NPCocoaEventFlagsChanged) :
133 (eventType == CocoaConstants.NSFlagsChanged);
134
135 int jeventType = KeyEvent.KEY_PRESSED;
136 int jkeyCode = KeyEvent.VK_UNDEFINED;
137 int jkeyLocation = KeyEvent.KEY_LOCATION_UNKNOWN;
138 boolean postsTyped = false;
139
140 char testChar = KeyEvent.CHAR_UNDEFINED;
141 boolean isDeadChar = (chars!= null && chars.length() == 0);
142
143 if (isFlagsChangedEvent) {
239 int index = 0, length = text.length();
240 char c = 0;
241 while (index < length) {
242 c = text.charAt(index);
243 eventNotifier.notifyKeyEvent(KeyEvent.KEY_TYPED,
244 System.currentTimeMillis(),
245 0, KeyEvent.VK_UNDEFINED, c,
246 KeyEvent.KEY_LOCATION_UNKNOWN);
247 index++;
248 }
249 eventNotifier.notifyKeyEvent(KeyEvent.KEY_RELEASED,
250 System.currentTimeMillis(),
251 0, lastKeyPressCode, c,
252 KeyEvent.KEY_LOCATION_UNKNOWN);
253 }
254 }
255
256 void handleWindowFocusEvent(boolean gained, LWWindowPeer opposite) {
257 eventNotifier.notifyActivation(gained, opposite);
258 }
259 }
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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 private final DeltaAccumulator deltaAccumulatorX = new DeltaAccumulator();
48 private final DeltaAccumulator deltaAccumulatorY = new DeltaAccumulator();
49
50 CPlatformResponder(final PlatformEventNotifier eventNotifier,
51 final boolean isNpapiCallback) {
52 this.eventNotifier = eventNotifier;
53 this.isNpapiCallback = isNpapiCallback;
54 }
55
56 /**
57 * Handles mouse events.
58 */
59 void handleMouseEvent(int eventType, int modifierFlags, int buttonNumber,
60 int clickCount, int x, int y, int absoluteX,
61 int absoluteY) {
62 final SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit();
63 if ((buttonNumber > 2 && !tk.areExtraMouseButtonsEnabled())
64 || buttonNumber > tk.getNumberOfButtons() - 1) {
65 return;
66 }
67
68 int jeventType = isNpapiCallback ? NSEvent.npToJavaEventType(eventType) :
75 jeventType != MouseEvent.MOUSE_ENTERED &&
76 jeventType != MouseEvent.MOUSE_EXITED)
77 {
78 jbuttonNumber = NSEvent.nsToJavaButton(buttonNumber);
79 jclickCount = clickCount;
80 }
81
82 int jmodifiers = NSEvent.nsToJavaMouseModifiers(buttonNumber,
83 modifierFlags);
84 boolean jpopupTrigger = NSEvent.isPopupTrigger(jmodifiers);
85
86 eventNotifier.notifyMouseEvent(jeventType, System.currentTimeMillis(), jbuttonNumber,
87 x, y, absoluteX, absoluteY, jmodifiers, jclickCount,
88 jpopupTrigger, null);
89 }
90
91 /**
92 * Handles scroll events.
93 */
94 void handleScrollEvent(final int x, final int y, final int modifierFlags,
95 final double deltaX, final double deltaY,
96 final int scrollPhase) {
97 final int buttonNumber = CocoaConstants.kCGMouseButtonCenter;
98 int jmodifiers = NSEvent.nsToJavaMouseModifiers(buttonNumber,
99 modifierFlags);
100 final boolean isShift = (jmodifiers & InputEvent.SHIFT_DOWN_MASK) != 0;
101
102 int roundDeltaX = deltaAccumulatorX.getRoundedDelta(deltaX, scrollPhase);
103 int roundDeltaY = deltaAccumulatorY.getRoundedDelta(deltaY, scrollPhase);
104
105 // Vertical scroll.
106 if (!isShift && (deltaY != 0.0 || roundDeltaY != 0)) {
107 dispatchScrollEvent(x, y, jmodifiers, roundDeltaY, deltaY);
108 }
109 // Horizontal scroll or shirt+vertical scroll.
110 final double delta = isShift && deltaY != 0.0 ? deltaY : deltaX;
111 final int roundDelta = isShift && roundDeltaY != 0 ? roundDeltaY : roundDeltaX;
112 if (delta != 0.0 || roundDelta != 0) {
113 jmodifiers |= InputEvent.SHIFT_DOWN_MASK;
114 dispatchScrollEvent(x, y, jmodifiers, roundDelta, delta);
115 }
116 }
117
118 private void dispatchScrollEvent(final int x, final int y,
119 final int modifiers,
120 final int roundDelta, final double delta) {
121 final long when = System.currentTimeMillis();
122 final int scrollType = MouseWheelEvent.WHEEL_UNIT_SCROLL;
123 final int scrollAmount = 1;
124 // invert the wheelRotation for the peer
125 eventNotifier.notifyMouseWheelEvent(when, x, y, modifiers, scrollType,
126 scrollAmount, -roundDelta, -delta, null);
127 }
128
129 /**
130 * Handles key events.
131 */
132 void handleKeyEvent(int eventType, int modifierFlags, String chars, String charsIgnoringModifiers,
133 short keyCode, boolean needsKeyTyped, boolean needsKeyReleased) {
134 boolean isFlagsChangedEvent =
135 isNpapiCallback ? (eventType == CocoaConstants.NPCocoaEventFlagsChanged) :
136 (eventType == CocoaConstants.NSFlagsChanged);
137
138 int jeventType = KeyEvent.KEY_PRESSED;
139 int jkeyCode = KeyEvent.VK_UNDEFINED;
140 int jkeyLocation = KeyEvent.KEY_LOCATION_UNKNOWN;
141 boolean postsTyped = false;
142
143 char testChar = KeyEvent.CHAR_UNDEFINED;
144 boolean isDeadChar = (chars!= null && chars.length() == 0);
145
146 if (isFlagsChangedEvent) {
242 int index = 0, length = text.length();
243 char c = 0;
244 while (index < length) {
245 c = text.charAt(index);
246 eventNotifier.notifyKeyEvent(KeyEvent.KEY_TYPED,
247 System.currentTimeMillis(),
248 0, KeyEvent.VK_UNDEFINED, c,
249 KeyEvent.KEY_LOCATION_UNKNOWN);
250 index++;
251 }
252 eventNotifier.notifyKeyEvent(KeyEvent.KEY_RELEASED,
253 System.currentTimeMillis(),
254 0, lastKeyPressCode, c,
255 KeyEvent.KEY_LOCATION_UNKNOWN);
256 }
257 }
258
259 void handleWindowFocusEvent(boolean gained, LWWindowPeer opposite) {
260 eventNotifier.notifyActivation(gained, opposite);
261 }
262
263 static class DeltaAccumulator {
264
265 static final double MIN_THRESHOLD = 0.1;
266 static final double MAX_THRESHOLD = 0.5;
267 double accumulatedDelta;
268
269 int getRoundedDelta(double delta, int scrollPhase) {
270
271 int roundDelta = (int) Math.round(delta);
272
273 if (scrollPhase == NSEvent.SCROLL_PHASE_UNSUPPORTED) { // mouse wheel
274 if (roundDelta == 0 && delta != 0) {
275 roundDelta = delta > 0 ? 1 : -1;
276 }
277 } else { // trackpad
278 boolean begin = scrollPhase == NSEvent.SCROLL_PHASE_BEGAN;
279 boolean end = scrollPhase == NSEvent.SCROLL_MASK_PHASE_ENDED
280 || scrollPhase == NSEvent.SCROLL_MASK_PHASE_CANCELLED;
281
282 if (begin) {
283 accumulatedDelta = 0;
284 }
285
286 accumulatedDelta += delta;
287
288 double absAccumulatedDelta = Math.abs(accumulatedDelta);
289 if (absAccumulatedDelta > MAX_THRESHOLD) {
290 roundDelta = (int) Math.round(accumulatedDelta);
291 accumulatedDelta -= roundDelta;
292 }
293
294 if (end) {
295 if (roundDelta == 0 && absAccumulatedDelta > MIN_THRESHOLD) {
296 roundDelta = accumulatedDelta > 0 ? 1 : -1;
297 }
298 }
299 }
300
301 return roundDelta;
302 }
303 }
304 }
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