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winemac.drv: Factor out cursor clipping code to its own class. 

Signed-off-by: Tim Clem <tclem@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Tim Clem 2022-01-19 11:40:24 -08:00 committed by Alexandre Julliard
parent bdea89242c
commit 1c80eb5e5b
5 changed files with 430 additions and 307 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
dlls/winemac.drv/Makefile.in
View File

@ -25,6 +25,7 @@ C_SRCS = \
OBJC_SRCS = \
cocoa_app.m \
cocoa_clipboard.m \
cocoa_cursorclipping.m \
cocoa_display.m \
cocoa_event.m \
cocoa_main.m \

11
dlls/winemac.drv/cocoa_app.h
View File

@ -67,6 +67,7 @@
@class WineEventQueue;
@class WineEventTapClipCursorHandler;
@class WineWindow;
@ -118,13 +119,9 @@ @interface WineApplicationController : NSObject <NSApplicationDelegate>
BOOL cursorHidden;
BOOL clientWantsCursorHidden;
BOOL clippingCursor;
CGRect cursorClipRect;
CFMachPortRef cursorClippingEventTap;
NSMutableArray* warpRecords;
CGPoint synthesizedLocation;
NSTimeInterval lastSetCursorPositionTime;
NSTimeInterval lastEventTapEventTime;
WineEventTapClipCursorHandler* clipCursorHandler;
NSImage* applicationIcon;
@ -139,6 +136,7 @@ @interface WineApplicationController : NSObject <NSApplicationDelegate>
@property (readonly, nonatomic) BOOL areDisplaysCaptured;
@property (readonly) BOOL clippingCursor;
@property (nonatomic) NSTimeInterval lastSetCursorPositionTime;
+ (WineApplicationController*) sharedController;
@ -160,6 +158,7 @@ - (void) window:(WineWindow*)window isBeingDragged:(BOOL)dragged;
- (void) windowWillOrderOut:(WineWindow*)window;
- (void) flipRect:(NSRect*)rect;
- (NSPoint) flippedMouseLocation:(NSPoint)point;
- (WineWindow*) frontWineWindow;
- (void) adjustWindowLevels;

326
dlls/winemac.drv/cocoa_app.m
View File

@ -21,6 +21,7 @@
#import <Carbon/Carbon.h>
#import "cocoa_app.h"
#import "cocoa_cursorclipping.h"
#import "cocoa_event.h"
#import "cocoa_window.h"
@ -80,27 +81,6 @@ - (void) setWineController:(WineApplicationController*)newController
@end
@interface WarpRecord : NSObject
{
CGEventTimestamp timeBefore, timeAfter;
CGPoint from, to;
}
@property (nonatomic) CGEventTimestamp timeBefore;
@property (nonatomic) CGEventTimestamp timeAfter;
@property (nonatomic) CGPoint from;
@property (nonatomic) CGPoint to;
@end
@implementation WarpRecord
@synthesize timeBefore, timeAfter, from, to;
@end;
@interface WineApplicationController ()
@property (readwrite, copy, nonatomic) NSEvent* lastFlagsChanged;
@ -125,8 +105,7 @@ @implementation WineApplicationController
@synthesize applicationIcon;
@synthesize cursorFrames, cursorTimer, cursor;
@synthesize mouseCaptureWindow;
@synthesize clippingCursor;
@synthesize lastSetCursorPositionTime;
+ (void) initialize
{
@ -183,8 +162,6 @@ - (id) init
originalDisplayModes = [[NSMutableDictionary alloc] init];
latentDisplayModes = [[NSMutableDictionary alloc] init];
warpRecords = [[NSMutableArray alloc] init];
windowsBeingDragged = [[NSMutableSet alloc] init];
// On macOS 10.12+, use notifications to more reliably detect when windows are being dragged.
@ -197,7 +174,7 @@ - (id) init
useDragNotifications = NO;
if (!requests || !requestsManipQueue || !eventQueues || !eventQueuesLock ||
!keyWindows || !originalDisplayModes || !latentDisplayModes || !warpRecords)
!keyWindows || !originalDisplayModes || !latentDisplayModes)
{
[self release];
return nil;
@ -219,7 +196,7 @@ - (void) dealloc
[cursor release];
[screenFrameCGRects release];
[applicationIcon release];
[warpRecords release];
[clipCursorHandler release];
[cursorTimer release];
[cursorFrames release];
[latentDisplayModes release];
@ -1165,251 +1142,14 @@ - (void) handleCommandTab
}
}
/*
* ---------- Cursor clipping methods ----------
*
* Neither Quartz nor Cocoa has an exact analog for Win32 cursor clipping.
* For one simple case, clipping to a 1x1 rectangle, Quartz does have an
* equivalent: CGAssociateMouseAndMouseCursorPosition(false). For the
* general case, we leverage that. We disassociate mouse movements from
* the cursor position and then move the cursor manually, keeping it within
* the clipping rectangle.
*
* Moving the cursor manually isn't enough. We need to modify the event
* stream so that the events have the new location, too. We need to do
* this at a point before the events enter Cocoa, so that Cocoa will assign
* the correct window to the event. So, we install a Quartz event tap to
* do that.
*
* Also, there's a complication when we move the cursor. We use
* CGWarpMouseCursorPosition(). That doesn't generate mouse movement
* events, but the change of cursor position is incorporated into the
* deltas of the next mouse move event. When the mouse is disassociated
* from the cursor position, we need the deltas to only reflect actual
* device movement, not programmatic changes. So, the event tap cancels
* out the change caused by our calls to CGWarpMouseCursorPosition().
*/
- (void) clipCursorLocation:(CGPoint*)location
{
if (location->x < CGRectGetMinX(cursorClipRect))
location->x = CGRectGetMinX(cursorClipRect);
if (location->y < CGRectGetMinY(cursorClipRect))
location->y = CGRectGetMinY(cursorClipRect);
if (location->x > CGRectGetMaxX(cursorClipRect) - 1)
location->x = CGRectGetMaxX(cursorClipRect) - 1;
if (location->y > CGRectGetMaxY(cursorClipRect) - 1)
location->y = CGRectGetMaxY(cursorClipRect) - 1;
}
- (BOOL) warpCursorTo:(CGPoint*)newLocation from:(const CGPoint*)currentLocation
{
CGPoint oldLocation;
if (currentLocation)
oldLocation = *currentLocation;
else
oldLocation = NSPointToCGPoint([self flippedMouseLocation:[NSEvent mouseLocation]]);
if (!CGPointEqualToPoint(oldLocation, *newLocation))
{
WarpRecord* warpRecord = [[[WarpRecord alloc] init] autorelease];
CGError err;
warpRecord.from = oldLocation;
warpRecord.timeBefore = [[NSProcessInfo processInfo] systemUptime] * NSEC_PER_SEC;
/* Actually move the cursor. */
err = CGWarpMouseCursorPosition(*newLocation);
if (err != kCGErrorSuccess)
return FALSE;
warpRecord.timeAfter = [[NSProcessInfo processInfo] systemUptime] * NSEC_PER_SEC;
*newLocation = NSPointToCGPoint([self flippedMouseLocation:[NSEvent mouseLocation]]);
if (!CGPointEqualToPoint(oldLocation, *newLocation))
{
warpRecord.to = *newLocation;
[warpRecords addObject:warpRecord];
}
}
return TRUE;
}
- (BOOL) isMouseMoveEventType:(CGEventType)type
{
switch(type)
{
case kCGEventMouseMoved:
case kCGEventLeftMouseDragged:
case kCGEventRightMouseDragged:
case kCGEventOtherMouseDragged:
return TRUE;
default:
return FALSE;
}
}
- (int) warpsFinishedByEventTime:(CGEventTimestamp)eventTime location:(CGPoint)eventLocation
{
int warpsFinished = 0;
for (WarpRecord* warpRecord in warpRecords)
{
if (warpRecord.timeAfter < eventTime ||
(warpRecord.timeBefore <= eventTime && CGPointEqualToPoint(eventLocation, warpRecord.to)))
warpsFinished++;
else
break;
}
return warpsFinished;
}
- (CGEventRef) eventTapWithProxy:(CGEventTapProxy)proxy
type:(CGEventType)type
event:(CGEventRef)event
{
CGEventTimestamp eventTime;
CGPoint eventLocation, cursorLocation;
if (type == kCGEventTapDisabledByUserInput)
return event;
if (type == kCGEventTapDisabledByTimeout)
{
CGEventTapEnable(cursorClippingEventTap, TRUE);
return event;
}
if (!clippingCursor)
return event;
eventTime = CGEventGetTimestamp(event);
lastEventTapEventTime = eventTime / (double)NSEC_PER_SEC;
eventLocation = CGEventGetLocation(event);
cursorLocation = NSPointToCGPoint([self flippedMouseLocation:[NSEvent mouseLocation]]);
if ([self isMouseMoveEventType:type])
{
double deltaX, deltaY;
int warpsFinished = [self warpsFinishedByEventTime:eventTime location:eventLocation];
int i;
deltaX = CGEventGetDoubleValueField(event, kCGMouseEventDeltaX);
deltaY = CGEventGetDoubleValueField(event, kCGMouseEventDeltaY);
for (i = 0; i < warpsFinished; i++)
{
WarpRecord* warpRecord = [warpRecords objectAtIndex:0];
deltaX -= warpRecord.to.x - warpRecord.from.x;
deltaY -= warpRecord.to.y - warpRecord.from.y;
[warpRecords removeObjectAtIndex:0];
}
if (warpsFinished)
{
CGEventSetDoubleValueField(event, kCGMouseEventDeltaX, deltaX);
CGEventSetDoubleValueField(event, kCGMouseEventDeltaY, deltaY);
}
synthesizedLocation.x += deltaX;
synthesizedLocation.y += deltaY;
}
// If the event is destined for another process, don't clip it. This may
// happen if the user activates Exposé or Mission Control. In that case,
// our app does not resign active status, so clipping is still in effect,
// but the cursor should not actually be clipped.
//
// In addition, the fact that mouse moves may have been delivered to a
// different process means we have to treat the next one we receive as
// absolute rather than relative.
if (CGEventGetIntegerValueField(event, kCGEventTargetUnixProcessID) == getpid())
[self clipCursorLocation:&synthesizedLocation];
else
lastSetCursorPositionTime = lastEventTapEventTime;
[self warpCursorTo:&synthesizedLocation from:&cursorLocation];
if (!CGPointEqualToPoint(eventLocation, synthesizedLocation))
CGEventSetLocation(event, synthesizedLocation);
return event;
}
CGEventRef WineAppEventTapCallBack(CGEventTapProxy proxy, CGEventType type,
CGEventRef event, void *refcon)
{
WineApplicationController* controller = refcon;
return [controller eventTapWithProxy:proxy type:type event:event];
}
- (BOOL) installEventTap
{
CGEventMask mask = CGEventMaskBit(kCGEventLeftMouseDown) |
CGEventMaskBit(kCGEventLeftMouseUp) |
CGEventMaskBit(kCGEventRightMouseDown) |
CGEventMaskBit(kCGEventRightMouseUp) |
CGEventMaskBit(kCGEventMouseMoved) |
CGEventMaskBit(kCGEventLeftMouseDragged) |
CGEventMaskBit(kCGEventRightMouseDragged) |
CGEventMaskBit(kCGEventOtherMouseDown) |
CGEventMaskBit(kCGEventOtherMouseUp) |
CGEventMaskBit(kCGEventOtherMouseDragged) |
CGEventMaskBit(kCGEventScrollWheel);
CFRunLoopSourceRef source;
if (cursorClippingEventTap)
return TRUE;
// We create an annotated session event tap rather than a process-specific
// event tap because we need to programmatically move the cursor even when
// mouse moves are directed to other processes. We disable our tap when
// other processes are active, but things like Exposé are handled by other
// processes even when we remain active.
cursorClippingEventTap = CGEventTapCreate(kCGAnnotatedSessionEventTap, kCGHeadInsertEventTap,
kCGEventTapOptionDefault, mask, WineAppEventTapCallBack, self);
if (!cursorClippingEventTap)
return FALSE;
CGEventTapEnable(cursorClippingEventTap, FALSE);
source = CFMachPortCreateRunLoopSource(NULL, cursorClippingEventTap, 0);
if (!source)
{
CFRelease(cursorClippingEventTap);
cursorClippingEventTap = NULL;
return FALSE;
}
CFRunLoopAddSource(CFRunLoopGetCurrent(), source, kCFRunLoopCommonModes);
CFRelease(source);
return TRUE;
}
- (BOOL) setCursorPosition:(CGPoint)pos
{
BOOL ret;
if ([windowsBeingDragged count])
ret = FALSE;
else if (clippingCursor)
{
[self clipCursorLocation:&pos];
ret = [self warpCursorTo:&pos from:NULL];
synthesizedLocation = pos;
if (ret)
{
// We want to discard mouse-move events that have already been
// through the event tap, because it's too late to account for
// the setting of the cursor position with them. However, the
// events that may be queued with times after that but before
// the above warp can still be used. So, use the last event
// tap event time so that -sendEvent: doesn't discard them.
lastSetCursorPositionTime = lastEventTapEventTime;
}
}
else if (self.clippingCursor)
ret = [clipCursorHandler setCursorPosition:pos];
else
{
// Annoyingly, CGWarpMouseCursorPosition() effectively disassociates
@ -1468,22 +1208,15 @@ - (void) updateWindowsForCursorClipping
- (BOOL) startClippingCursor:(CGRect)rect
{
CGError err;
if (!clipCursorHandler)
clipCursorHandler = [[WineEventTapClipCursorHandler alloc] init];
if (!cursorClippingEventTap && ![self installEventTap])
return FALSE;
if (clippingCursor && CGRectEqualToRect(rect, cursorClipRect))
if (self.clippingCursor && CGRectEqualToRect(rect, clipCursorHandler.cursorClipRect))
return TRUE;
err = CGAssociateMouseAndMouseCursorPosition(false);
if (err != kCGErrorSuccess)
if (![clipCursorHandler startClippingCursor:rect])
return FALSE;
clippingCursor = TRUE;
cursorClipRect = rect;
CGEventTapEnable(cursorClippingEventTap, TRUE);
[self setCursorPosition:NSPointToCGPoint([self flippedMouseLocation:[NSEvent mouseLocation]])];
[self updateWindowsForCursorClipping];
@ -1493,19 +1226,12 @@ - (BOOL) startClippingCursor:(CGRect)rect
- (BOOL) stopClippingCursor
{
CGError err;
if (!clippingCursor)
if (!self.clippingCursor)
return TRUE;
err = CGAssociateMouseAndMouseCursorPosition(true);
if (err != kCGErrorSuccess)
if (![clipCursorHandler stopClippingCursor])
return FALSE;
clippingCursor = FALSE;
CGEventTapEnable(cursorClippingEventTap, FALSE);
[warpRecords removeAllObjects];
lastSetCursorPositionTime = [[NSProcessInfo processInfo] systemUptime];
[self updateWindowsForCursorClipping];
@ -1513,6 +1239,11 @@ - (BOOL) stopClippingCursor
return TRUE;
}
- (BOOL) clippingCursor
{
return clipCursorHandler.clippingCursor;
}
- (BOOL) isKeyPressed:(uint16_t)keyCode
{
int bits = sizeof(pressedKeyCodes[0]) * 8;
@ -1662,7 +1393,7 @@ - (void) handleMouseMove:(NSEvent*)anEvent
// Assume cursor is pinned for now
absolute = FALSE;
if (!clippingCursor || CGRectContainsPoint(cursorClipRect, computedPoint))
if (!self.clippingCursor || CGRectContainsPoint(clipCursorHandler.cursorClipRect, computedPoint))
{
const CGRect* rects;
NSUInteger count, i;
@ -1686,8 +1417,8 @@ - (void) handleMouseMove:(NSEvent*)anEvent
if (absolute)
{
if (clippingCursor)
[self clipCursorLocation:&point];
if (self.clippingCursor)
[clipCursorHandler clipCursorLocation:&point];
point = cgpoint_win_from_mac(point);
event = macdrv_create_event(MOUSE_MOVED_ABSOLUTE, targetWindow);
@ -1779,8 +1510,8 @@ - (void) handleMouseButton:(NSEvent*)theEvent
type == NSEventTypeOtherMouseDown);
CGPoint pt = CGEventGetLocation([theEvent CGEvent]);
if (clippingCursor)
[self clipCursorLocation:&pt];
if (self.clippingCursor)
[clipCursorHandler clipCursorLocation:&pt];
if (pressed)
{
@ -1897,8 +1628,8 @@ - (void) handleScrollWheel:(NSEvent*)theEvent
CGPoint pt = CGEventGetLocation(cgevent);
BOOL process;
if (clippingCursor)
[self clipCursorLocation:&pt];
if (self.clippingCursor)
[clipCursorHandler clipCursorLocation:&pt];
if (mouseCaptureWindow)
process = TRUE;
@ -2265,14 +1996,7 @@ - (void) setRetinaMode:(int)mode
{
retina_on = mode;
if (clippingCursor)
{
double scale = mode ? 0.5 : 2.0;
cursorClipRect.origin.x *= scale;
cursorClipRect.origin.y *= scale;
cursorClipRect.size.width *= scale;
cursorClipRect.size.height *= scale;
}
[clipCursorHandler setRetinaMode:mode];
for (WineWindow* window in [NSApp windows])
{

46
dlls/winemac.drv/cocoa_cursorclipping.h Normal file
View File

@ -0,0 +1,46 @@
/*
* MACDRV CGEventTap-based cursor clipping class declaration
*
* Copyright 2011, 2012, 2013 Ken Thomases for CodeWeavers Inc.
* Copyright 2021 Tim Clem for CodeWeavers Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#import <AppKit/AppKit.h>
@interface WineEventTapClipCursorHandler : NSObject
{
BOOL clippingCursor;
CGRect cursorClipRect;
CFMachPortRef cursorClippingEventTap;
NSMutableArray* warpRecords;
CGPoint synthesizedLocation;
NSTimeInterval lastEventTapEventTime;
}
@property (readonly, nonatomic) BOOL clippingCursor;
@property (readonly, nonatomic) CGRect cursorClipRect;
- (BOOL) startClippingCursor:(CGRect)rect;
- (BOOL) stopClippingCursor;
- (void) clipCursorLocation:(CGPoint*)location;
- (void) setRetinaMode:(int)mode;
- (BOOL) setCursorPosition:(CGPoint)pos;
@end

353
dlls/winemac.drv/cocoa_cursorclipping.m Normal file
View File

@ -0,0 +1,353 @@
/*
* MACDRV CGEventTap-based cursor clipping class
*
* Copyright 2011, 2012, 2013 Ken Thomases for CodeWeavers Inc.
* Copyright 2021 Tim Clem for CodeWeavers Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#import "cocoa_app.h"
#import "cocoa_cursorclipping.h"
/* Neither Quartz nor Cocoa has an exact analog for Win32 cursor clipping.
* For one simple case, clipping to a 1x1 rectangle, Quartz does have an
* equivalent: CGAssociateMouseAndMouseCursorPosition(false). For the
* general case, we leverage that. We disassociate mouse movements from
* the cursor position and then move the cursor manually, keeping it within
* the clipping rectangle.
*
* Moving the cursor manually isn't enough. We need to modify the event
* stream so that the events have the new location, too. We need to do
* this at a point before the events enter Cocoa, so that Cocoa will assign
* the correct window to the event. So, we install a Quartz event tap to
* do that.
*
* Also, there's a complication when we move the cursor. We use
* CGWarpMouseCursorPosition(). That doesn't generate mouse movement
* events, but the change of cursor position is incorporated into the
* deltas of the next mouse move event. When the mouse is disassociated
* from the cursor position, we need the deltas to only reflect actual
* device movement, not programmatic changes. So, the event tap cancels
* out the change caused by our calls to CGWarpMouseCursorPosition().
*/
@interface WarpRecord : NSObject
{
CGEventTimestamp timeBefore, timeAfter;
CGPoint from, to;
}
@property (nonatomic) CGEventTimestamp timeBefore;
@property (nonatomic) CGEventTimestamp timeAfter;
@property (nonatomic) CGPoint from;
@property (nonatomic) CGPoint to;
@end
@implementation WarpRecord
@synthesize timeBefore, timeAfter, from, to;
@end;
@implementation WineEventTapClipCursorHandler
@synthesize clippingCursor, cursorClipRect;
- (id) init
{
self = [super init];
if (self)
{
warpRecords = [[NSMutableArray alloc] init];
}
return self;
}
- (void) dealloc
{
[warpRecords release];
[super dealloc];
}
- (void) clipCursorLocation:(CGPoint*)location
{
if (location->x < CGRectGetMinX(cursorClipRect))
location->x = CGRectGetMinX(cursorClipRect);
if (location->y < CGRectGetMinY(cursorClipRect))
location->y = CGRectGetMinY(cursorClipRect);
if (location->x > CGRectGetMaxX(cursorClipRect) - 1)
location->x = CGRectGetMaxX(cursorClipRect) - 1;
if (location->y > CGRectGetMaxY(cursorClipRect) - 1)
location->y = CGRectGetMaxY(cursorClipRect) - 1;
}
- (BOOL) warpCursorTo:(CGPoint*)newLocation from:(const CGPoint*)currentLocation
{
CGPoint oldLocation;
if (currentLocation)
oldLocation = *currentLocation;
else
oldLocation = NSPointToCGPoint([[WineApplicationController sharedController] flippedMouseLocation:[NSEvent mouseLocation]]);
if (!CGPointEqualToPoint(oldLocation, *newLocation))
{
WarpRecord* warpRecord = [[[WarpRecord alloc] init] autorelease];
CGError err;
warpRecord.from = oldLocation;
warpRecord.timeBefore = [[NSProcessInfo processInfo] systemUptime] * NSEC_PER_SEC;
/* Actually move the cursor. */
err = CGWarpMouseCursorPosition(*newLocation);
if (err != kCGErrorSuccess)
return FALSE;
warpRecord.timeAfter = [[NSProcessInfo processInfo] systemUptime] * NSEC_PER_SEC;
*newLocation = NSPointToCGPoint([[WineApplicationController sharedController] flippedMouseLocation:[NSEvent mouseLocation]]);
if (!CGPointEqualToPoint(oldLocation, *newLocation))
{
warpRecord.to = *newLocation;
[warpRecords addObject:warpRecord];
}
}
return TRUE;
}
- (BOOL) isMouseMoveEventType:(CGEventType)type
{
switch(type)
{
case kCGEventMouseMoved:
case kCGEventLeftMouseDragged:
case kCGEventRightMouseDragged:
case kCGEventOtherMouseDragged:
return TRUE;
default:
return FALSE;
}
}
- (int) warpsFinishedByEventTime:(CGEventTimestamp)eventTime location:(CGPoint)eventLocation
{
int warpsFinished = 0;
for (WarpRecord* warpRecord in warpRecords)
{
if (warpRecord.timeAfter < eventTime ||
(warpRecord.timeBefore <= eventTime && CGPointEqualToPoint(eventLocation, warpRecord.to)))
warpsFinished++;
else
break;
}
return warpsFinished;
}
- (CGEventRef) eventTapWithProxy:(CGEventTapProxy)proxy
type:(CGEventType)type
event:(CGEventRef)event
{
CGEventTimestamp eventTime;
CGPoint eventLocation, cursorLocation;
if (type == kCGEventTapDisabledByUserInput)
return event;
if (type == kCGEventTapDisabledByTimeout)
{
CGEventTapEnable(cursorClippingEventTap, TRUE);
return event;
}
if (!clippingCursor)
return event;
eventTime = CGEventGetTimestamp(event);
lastEventTapEventTime = eventTime / (double)NSEC_PER_SEC;
eventLocation = CGEventGetLocation(event);
cursorLocation = NSPointToCGPoint([[WineApplicationController sharedController] flippedMouseLocation:[NSEvent mouseLocation]]);
if ([self isMouseMoveEventType:type])
{
double deltaX, deltaY;
int warpsFinished = [self warpsFinishedByEventTime:eventTime location:eventLocation];
int i;
deltaX = CGEventGetDoubleValueField(event, kCGMouseEventDeltaX);
deltaY = CGEventGetDoubleValueField(event, kCGMouseEventDeltaY);
for (i = 0; i < warpsFinished; i++)
{
WarpRecord* warpRecord = [warpRecords objectAtIndex:0];
deltaX -= warpRecord.to.x - warpRecord.from.x;
deltaY -= warpRecord.to.y - warpRecord.from.y;
[warpRecords removeObjectAtIndex:0];
}
if (warpsFinished)
{
CGEventSetDoubleValueField(event, kCGMouseEventDeltaX, deltaX);
CGEventSetDoubleValueField(event, kCGMouseEventDeltaY, deltaY);
}
synthesizedLocation.x += deltaX;
synthesizedLocation.y += deltaY;
}
// If the event is destined for another process, don't clip it. This may
// happen if the user activates Exposé or Mission Control. In that case,
// our app does not resign active status, so clipping is still in effect,
// but the cursor should not actually be clipped.
//
// In addition, the fact that mouse moves may have been delivered to a
// different process means we have to treat the next one we receive as
// absolute rather than relative.
if (CGEventGetIntegerValueField(event, kCGEventTargetUnixProcessID) == getpid())
[self clipCursorLocation:&synthesizedLocation];
else
[WineApplicationController sharedController].lastSetCursorPositionTime = lastEventTapEventTime;
[self warpCursorTo:&synthesizedLocation from:&cursorLocation];
if (!CGPointEqualToPoint(eventLocation, synthesizedLocation))
CGEventSetLocation(event, synthesizedLocation);
return event;
}
CGEventRef WineAppEventTapCallBack(CGEventTapProxy proxy, CGEventType type,
CGEventRef event, void *refcon)
{
WineEventTapClipCursorHandler* handler = refcon;
return [handler eventTapWithProxy:proxy type:type event:event];
}
- (BOOL) installEventTap
{
CGEventMask mask = CGEventMaskBit(kCGEventLeftMouseDown) |
CGEventMaskBit(kCGEventLeftMouseUp) |
CGEventMaskBit(kCGEventRightMouseDown) |
CGEventMaskBit(kCGEventRightMouseUp) |
CGEventMaskBit(kCGEventMouseMoved) |
CGEventMaskBit(kCGEventLeftMouseDragged) |
CGEventMaskBit(kCGEventRightMouseDragged) |
CGEventMaskBit(kCGEventOtherMouseDown) |
CGEventMaskBit(kCGEventOtherMouseUp) |
CGEventMaskBit(kCGEventOtherMouseDragged) |
CGEventMaskBit(kCGEventScrollWheel);
CFRunLoopSourceRef source;
if (cursorClippingEventTap)
return TRUE;
// We create an annotated session event tap rather than a process-specific
// event tap because we need to programmatically move the cursor even when
// mouse moves are directed to other processes. We disable our tap when
// other processes are active, but things like Exposé are handled by other
// processes even when we remain active.
cursorClippingEventTap = CGEventTapCreate(kCGAnnotatedSessionEventTap, kCGHeadInsertEventTap,
kCGEventTapOptionDefault, mask, WineAppEventTapCallBack, self);
if (!cursorClippingEventTap)
return FALSE;
CGEventTapEnable(cursorClippingEventTap, FALSE);
source = CFMachPortCreateRunLoopSource(NULL, cursorClippingEventTap, 0);
if (!source)
{
CFRelease(cursorClippingEventTap);
cursorClippingEventTap = NULL;
return FALSE;
}
CFRunLoopAddSource(CFRunLoopGetCurrent(), source, kCFRunLoopCommonModes);
CFRelease(source);
return TRUE;
}
- (BOOL) setCursorPosition:(CGPoint)pos
{
BOOL ret;
[self clipCursorLocation:&pos];
ret = [self warpCursorTo:&pos from:NULL];
synthesizedLocation = pos;
if (ret)
{
// We want to discard mouse-move events that have already been
// through the event tap, because it's too late to account for
// the setting of the cursor position with them. However, the
// events that may be queued with times after that but before
// the above warp can still be used. So, use the last event
// tap event time so that -sendEvent: doesn't discard them.
[WineApplicationController sharedController].lastSetCursorPositionTime = lastEventTapEventTime;
}
return ret;
}
- (BOOL) startClippingCursor:(CGRect)rect
{
CGError err;
if (!cursorClippingEventTap && ![self installEventTap])
return FALSE;
err = CGAssociateMouseAndMouseCursorPosition(false);
if (err != kCGErrorSuccess)
return FALSE;
clippingCursor = TRUE;
cursorClipRect = rect;
CGEventTapEnable(cursorClippingEventTap, TRUE);
return TRUE;
}
- (BOOL) stopClippingCursor
{
CGError err = CGAssociateMouseAndMouseCursorPosition(true);
if (err != kCGErrorSuccess)
return FALSE;
clippingCursor = FALSE;
CGEventTapEnable(cursorClippingEventTap, FALSE);
[warpRecords removeAllObjects];
return TRUE;
}
- (void) setRetinaMode:(int)mode
{
double scale = mode ? 0.5 : 2.0;
cursorClipRect.origin.x *= scale;
cursorClipRect.origin.y *= scale;
cursorClipRect.size.width *= scale;
cursorClipRect.size.height *= scale;
}
@end