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path: root/src/newt/native/NewtMacWindow.m

blob: 146c04de17d546cbd7bf971996b2d2eb8c243ce6 (plain)

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/*
* Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
*/

#import "NewtMacWindow.h"
#import "InputEvent.h"
#import "KeyEvent.h"
#import "MouseEvent.h"

jint GetDeltaY(NSEvent *event, jint javaMods) {
CGFloat deltaY = 0.0;
CGEventRef cgEvent = [event CGEvent];

if (CGEventGetIntegerValueField(cgEvent, kCGScrollWheelEventIsContinuous)) {
// mouse pad case
deltaY =
CGEventGetIntegerValueField(cgEvent, kCGScrollWheelEventPointDeltaAxis1);
} else {
// traditional mouse wheel case
deltaY = [event deltaY];
if (deltaY == 0.0 && (javaMods & EVENT_SHIFT_MASK) != 0) {
// shift+vertical wheel scroll produces horizontal scroll
// we convert it to vertical
deltaY = [event deltaX];
}
if (deltaY < 1.0 && deltaY > -1.0) {
deltaY *= 10.0;
} else {
if (deltaY < 0.0) {
deltaY = deltaY - 0.5f;
} else {
deltaY = deltaY + 0.5f;
}
}
}

if (deltaY > 0) {
return (NSInteger)deltaY;
} else if (deltaY < 0) {
return -(NSInteger)deltaY;
}

return 0;
}

@implementation NewtView
- (void) setJNIEnv: (JNIEnv*) theEnv
{
env = theEnv;
}
- (JNIEnv*) getJNIEnv
{
return env;
}

- (void) setJavaWindowObject: (jobject) javaWindowObj
{
javaWindowObject = javaWindowObj;
}

- (jobject) getJavaWindowObject
{
return javaWindowObject;
}

- (void) rightMouseDown: (NSEvent*) theEvent
{
NSResponder* next = [self nextResponder];
if (next != nil) {
[next rightMouseDown: theEvent];
}
}

/** FIXME: Tried child window: message reception ..
- (void)viewWillDraw
{
fprintf(stderr, "*************** viewWillDraw: 0x%p", javaWindowObject); fflush(stderr);
[super viewWillDraw];
} */

@end

static jmethodID sendMouseEventID = NULL;
static jmethodID sendKeyEventID = NULL;
static jmethodID insetsChangedID = NULL;
static jmethodID sizeChangedID = NULL;
static jmethodID positionChangedID = NULL;
static jmethodID focusChangedID = NULL;
static jmethodID windowDestroyNotifyID = NULL;
static jmethodID windowDestroyedID = NULL;

@implementation NewtMacWindow

+ (BOOL) initNatives: (JNIEnv*) env forClass: (jclass) clazz
{
sendMouseEventID = (*env)->GetMethodID(env, clazz, "sendMouseEvent", "(IIIIII)V");
sendKeyEventID = (*env)->GetMethodID(env, clazz, "sendKeyEvent", "(IIIC)V");
sizeChangedID = (*env)->GetMethodID(env, clazz, "sizeChanged", "(II)V");
insetsChangedID = (*env)->GetMethodID(env, clazz, "insetsChanged", "(IIII)V");
positionChangedID = (*env)->GetMethodID(env, clazz, "positionChanged", "(II)V");
focusChangedID = (*env)->GetMethodID(env, clazz, "focusChanged", "(Z)V");
windowDestroyNotifyID = (*env)->GetMethodID(env, clazz, "windowDestroyNotify", "()V");
windowDestroyedID = (*env)->GetMethodID(env, clazz, "windowDestroyed", "()V");
if (sendMouseEventID && sendKeyEventID && sizeChangedID && insetsChangedID &&
positionChangedID && focusChangedID && windowDestroyedID && windowDestroyNotifyID)
{
return YES;
}
return NO;
}

- (void) updateInsets: (JNIEnv*) env
{
NSView* nsview = [self contentView];
if( ! [nsview isMemberOfClass:[NewtView class]] ) {
return;
}
NewtView* view = (NewtView *) nsview;
jobject javaWindowObject = [view getJavaWindowObject];
if (env==NULL || javaWindowObject == NULL) {
return;
}

NSRect frameRect = [self frame];
NSRect contentRect = [self contentRectForFrameRect: frameRect];

// note: this is a simplistic implementation which doesn't take
// into account DPI and scaling factor
CGFloat l = contentRect.origin.x - frameRect.origin.x;
jint top = (jint)(frameRect.size.height - contentRect.size.height);
jint left = (jint)l;
jint bottom = (jint)(contentRect.origin.y - frameRect.origin.y);
jint right = (jint)(frameRect.size.width - (contentRect.size.width + l));

(*env)->CallVoidMethod(env, javaWindowObject, insetsChangedID,
left, top, right, bottom);
}

- (id) initWithContentRect: (NSRect) contentRect
styleMask: (NSUInteger) windowStyle
backing: (NSBackingStoreType) bufferingType
screen:(NSScreen *)screen
{
id res = [super initWithContentRect: contentRect
styleMask: windowStyle
backing: bufferingType
defer: YES
screen: screen];
// Why is this necessary? Without it we don't get any of the
// delegate methods like resizing and window movement.
[self setDelegate: self];
return res;
}

- (BOOL) canBecomeKeyWindow
{
// Even if the window is borderless, we still want it to be able
// to become the key window to receive keyboard events
return YES;
}

static jint mods2JavaMods(NSUInteger mods)
{
int javaMods = 0;
if (mods & NSShiftKeyMask) {
javaMods |= EVENT_SHIFT_MASK;
}
if (mods & NSControlKeyMask) {
javaMods |= EVENT_CTRL_MASK;
}
if (mods & NSCommandKeyMask) {
javaMods |= EVENT_META_MASK;
}
if (mods & NSAlternateKeyMask) {
javaMods |= EVENT_ALT_MASK;
}
return javaMods;
}

- (void) sendKeyEvent: (NSEvent*) event eventType: (jint) evType
{
NSView* nsview = [self contentView];
if( ! [nsview isMemberOfClass:[NewtView class]] ) {
return;
}
NewtView* view = (NewtView *) nsview;
jobject javaWindowObject = [view getJavaWindowObject];
JNIEnv* env = [view getJNIEnv];
if (env==NULL || javaWindowObject == NULL) {
return;
}

int i;
jint keyCode = (jint) [event keyCode];
NSString* chars = [event charactersIgnoringModifiers];
int len = [chars length];
jint javaMods = mods2JavaMods([event modifierFlags]);

for (i = 0; i < len; i++) {
// Note: the key code in the NSEvent does not map to anything we can use
jchar keyChar = (jchar) [chars characterAtIndex: i];

(*env)->CallVoidMethod(env, javaWindowObject, sendKeyEventID,
evType, javaMods, keyCode, keyChar);
}
}

- (void) keyDown: (NSEvent*) theEvent
{
[self sendKeyEvent: theEvent eventType: EVENT_KEY_PRESSED];
}

- (void) keyUp: (NSEvent*) theEvent
{
[self sendKeyEvent: theEvent eventType: EVENT_KEY_RELEASED];
}

- (void) sendMouseEvent: (NSEvent*) event eventType: (jint) evType
{
NSView* nsview = [self contentView];
if( ! [nsview isMemberOfClass:[NewtView class]] ) {
return;
}
NewtView* view = (NewtView *) nsview;
jobject javaWindowObject = [view getJavaWindowObject];
JNIEnv* env = [view getJNIEnv];
if (env==NULL || javaWindowObject == NULL) {
return;
}

jint javaMods = mods2JavaMods([event modifierFlags]);
NSRect frameRect = [self frame];
NSRect contentRect = [self contentRectForFrameRect: frameRect];
// NSPoint location = [event locationInWindow];
// The following computation improves the behavior of mouse drag
// events when they also affect the location of the window, but it
// still isn't perfect
NSPoint curLocation = [NSEvent mouseLocation];
NSPoint location = NSMakePoint(curLocation.x - frameRect.origin.x,
curLocation.y - frameRect.origin.y);

// convert to 1-based button number (or use zero if no button is involved)
// TODO: detect mouse button when mouse wheel scrolled
jint javaButtonNum = 0;
jint scrollDeltaY = 0;
switch ([event type]) {
case NSScrollWheel: {
scrollDeltaY = GetDeltaY(event, javaMods);
break;
}
case NSLeftMouseDown:
case NSLeftMouseUp:
case NSLeftMouseDragged:
javaButtonNum = 1;
break;
case NSRightMouseDown:
case NSRightMouseUp:
case NSRightMouseDragged:
javaButtonNum = 3;
break;
case NSOtherMouseDown:
case NSOtherMouseUp:
case NSOtherMouseDragged:
javaButtonNum = 2;
break;
default:
javaButtonNum = 0;
break;
}

if (evType == EVENT_MOUSE_WHEEL_MOVED && scrollDeltaY == 0) {
// ignore 0 increment wheel scroll events
return;
}
(*env)->CallVoidMethod(env, javaWindowObject, sendMouseEventID,
evType, javaMods,
(jint) location.x,
(jint) (contentRect.size.height - location.y),
javaButtonNum, scrollDeltaY);
}

- (void) mouseEntered: (NSEvent*) theEvent
{
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_ENTERED];
}

- (void) mouseExited: (NSEvent*) theEvent
{
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_EXITED];
}

- (void) mouseMoved: (NSEvent*) theEvent
{
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_MOVED];
}

- (void) scrollWheel: (NSEvent*) theEvent
{
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_WHEEL_MOVED];
}

- (void) mouseDown: (NSEvent*) theEvent
{
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_PRESSED];
}

- (void) mouseDragged: (NSEvent*) theEvent
{
// Note use of MOUSE_MOVED event type because mouse dragged events are synthesized by Java
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_MOVED];
}

- (void) mouseUp: (NSEvent*) theEvent
{
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_RELEASED];
}

- (void) rightMouseDown: (NSEvent*) theEvent
{
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_PRESSED];
}

- (void) rightMouseDragged: (NSEvent*) theEvent
{
// Note use of MOUSE_MOVED event type because mouse dragged events are synthesized by Java
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_MOVED];
}

- (void) rightMouseUp: (NSEvent*) theEvent
{
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_RELEASED];
}

- (void) otherMouseDown: (NSEvent*) theEvent
{
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_PRESSED];
}

- (void) otherMouseDragged: (NSEvent*) theEvent
{
// Note use of MOUSE_MOVED event type because mouse dragged events are synthesized by Java
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_MOVED];
}

- (void) otherMouseUp: (NSEvent*) theEvent
{
[self sendMouseEvent: theEvent eventType: EVENT_MOUSE_RELEASED];
}

- (void)windowDidResize: (NSNotification*) notification
{
NSView* nsview = [self contentView];
if( ! [nsview isMemberOfClass:[NewtView class]] ) {
return;
}
NewtView* view = (NewtView *) nsview;
jobject javaWindowObject = [view getJavaWindowObject];
JNIEnv* env = [view getJNIEnv];
if (env==NULL || javaWindowObject == NULL) {
return;
}

// update insets on every window resize for lack of better hook place
[self updateInsets: env];

NSRect frameRect = [self frame];
NSRect contentRect = [self contentRectForFrameRect: frameRect];

(*env)->CallVoidMethod(env, javaWindowObject, sizeChangedID,
(jint) contentRect.size.width,
(jint) contentRect.size.height);
}

- (void)windowDidMove: (NSNotification*) notification
{
NSView* nsview = [self contentView];
if( ! [nsview isMemberOfClass:[NewtView class]] ) {
return;
}
NewtView* view = (NewtView *) nsview;
jobject javaWindowObject = [view getJavaWindowObject];
JNIEnv* env = [view getJNIEnv];
if (env==NULL || javaWindowObject == NULL) {
return;
}

NSRect rect = [self frame];
NSScreen* screen = NULL;
NSRect screenRect;
NSPoint pt;

screen = [self screen];
// this allows for better compatibility with awt behavior
screenRect = [screen frame];
pt = NSMakePoint(rect.origin.x, screenRect.origin.y + screenRect.size.height - rect.origin.y - rect.size.height);

(*env)->CallVoidMethod(env, javaWindowObject, positionChangedID,
(jint) pt.x, (jint) pt.y);
}

- (void)windowWillClose: (NSNotification*) notification
{
NSView* nsview = [self contentView];
if( ! [nsview isMemberOfClass:[NewtView class]] ) {
return;
}
NewtView* view = (NewtView *) nsview;
jobject javaWindowObject = [view getJavaWindowObject];
JNIEnv* env = [view getJNIEnv];
if (env==NULL || javaWindowObject == NULL) {
return;
}

(*env)->CallVoidMethod(env, javaWindowObject, windowDestroyNotifyID);
// Will be called by Window.java (*env)->CallVoidMethod(env, javaWindowObject, windowDestroyedID);

// EOL ..
(*env)->DeleteGlobalRef(env, javaWindowObject);
[view setJavaWindowObject: NULL];
}

- (void) windowDidBecomeKey: (NSNotification *) notification
{
NSView* nsview = [self contentView];
if( ! [nsview isMemberOfClass:[NewtView class]] ) {
return;
}
NewtView* view = (NewtView *) nsview;
jobject javaWindowObject = [view getJavaWindowObject];
JNIEnv* env = [view getJNIEnv];
if (env==NULL || javaWindowObject == NULL) {
return;
}

(*env)->CallVoidMethod(env, javaWindowObject, focusChangedID, JNI_TRUE);
}

- (void) windowDidResignKey: (NSNotification *) notification
{
NSView* nsview = [self contentView];
if( ! [nsview isMemberOfClass:[NewtView class]] ) {
return;
}
NewtView* view = (NewtView *) nsview;
jobject javaWindowObject = [view getJavaWindowObject];
JNIEnv* env = [view getJNIEnv];
if (env==NULL || javaWindowObject == NULL) {
return;
}

(*env)->CallVoidMethod(env, javaWindowObject, focusChangedID, JNI_FALSE);
}

@end

generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 16:42:11 +0000