Sweden-Number/dlls/winemac.drv/cocoa_window.m

/*
 * MACDRV Cocoa window code
 *
 * Copyright 2011, 2012, 2013 Ken Thomases 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 <Carbon/Carbon.h>

#import "cocoa_window.h"

#include "macdrv_cocoa.h"
#import "cocoa_app.h"
#import "cocoa_event.h"
#import "cocoa_opengl.h"


/* Additional Mac virtual keycode, to complement those in Carbon's <HIToolbox/Events.h>. */
enum {
    kVK_RightCommand              = 0x36, /* Invented for Wine; was unused */
};


static NSUInteger style_mask_for_features(const struct macdrv_window_features* wf)
{
    NSUInteger style_mask;

    if (wf->title_bar)
    {
        style_mask = NSTitledWindowMask;
        if (wf->close_button) style_mask |= NSClosableWindowMask;
        if (wf->minimize_button) style_mask |= NSMiniaturizableWindowMask;
        if (wf->resizable) style_mask |= NSResizableWindowMask;
        if (wf->utility) style_mask |= NSUtilityWindowMask;
    }
    else style_mask = NSBorderlessWindowMask;

    return style_mask;
}


static BOOL frame_intersects_screens(NSRect frame, NSArray* screens)
{
    NSScreen* screen;
    for (screen in screens)
    {
        if (NSIntersectsRect(frame, [screen frame]))
            return TRUE;
    }
    return FALSE;
}


static NSScreen* screen_covered_by_rect(NSRect rect, NSArray* screens)
{
    for (NSScreen* screen in screens)
    {
        if (NSContainsRect(rect, [screen frame]))
            return screen;
    }
    return nil;
}


/* We rely on the supposedly device-dependent modifier flags to distinguish the
   keys on the left side of the keyboard from those on the right.  Some event
   sources don't set those device-depdendent flags.  If we see a device-independent
   flag for a modifier without either corresponding device-dependent flag, assume
   the left one. */
static inline void fix_device_modifiers_by_generic(NSUInteger* modifiers)
{
    if ((*modifiers & (NX_COMMANDMASK | NX_DEVICELCMDKEYMASK | NX_DEVICERCMDKEYMASK)) == NX_COMMANDMASK)
        *modifiers |= NX_DEVICELCMDKEYMASK;
    if ((*modifiers & (NX_SHIFTMASK | NX_DEVICELSHIFTKEYMASK | NX_DEVICERSHIFTKEYMASK)) == NX_SHIFTMASK)
        *modifiers |= NX_DEVICELSHIFTKEYMASK;
    if ((*modifiers & (NX_CONTROLMASK | NX_DEVICELCTLKEYMASK | NX_DEVICERCTLKEYMASK)) == NX_CONTROLMASK)
        *modifiers |= NX_DEVICELCTLKEYMASK;
    if ((*modifiers & (NX_ALTERNATEMASK | NX_DEVICELALTKEYMASK | NX_DEVICERALTKEYMASK)) == NX_ALTERNATEMASK)
        *modifiers |= NX_DEVICELALTKEYMASK;
}

/* As we manipulate individual bits of a modifier mask, we can end up with
   inconsistent sets of flags.  In particular, we might set or clear one of the
   left/right-specific bits, but not the corresponding non-side-specific bit.
   Fix that.  If either side-specific bit is set, set the non-side-specific bit,
   otherwise clear it. */
static inline void fix_generic_modifiers_by_device(NSUInteger* modifiers)
{
    if (*modifiers & (NX_DEVICELCMDKEYMASK | NX_DEVICERCMDKEYMASK))
        *modifiers |= NX_COMMANDMASK;
    else
        *modifiers &= ~NX_COMMANDMASK;
    if (*modifiers & (NX_DEVICELSHIFTKEYMASK | NX_DEVICERSHIFTKEYMASK))
        *modifiers |= NX_SHIFTMASK;
    else
        *modifiers &= ~NX_SHIFTMASK;
    if (*modifiers & (NX_DEVICELCTLKEYMASK | NX_DEVICERCTLKEYMASK))
        *modifiers |= NX_CONTROLMASK;
    else
        *modifiers &= ~NX_CONTROLMASK;
    if (*modifiers & (NX_DEVICELALTKEYMASK | NX_DEVICERALTKEYMASK))
        *modifiers |= NX_ALTERNATEMASK;
    else
        *modifiers &= ~NX_ALTERNATEMASK;
}


@interface WineContentView : NSView <NSTextInputClient>
{
    NSMutableArray* glContexts;
    NSMutableArray* pendingGlContexts;

    NSMutableAttributedString* markedText;
    NSRange markedTextSelection;
}

    - (void) addGLContext:(WineOpenGLContext*)context;
    - (void) removeGLContext:(WineOpenGLContext*)context;
    - (void) updateGLContexts;

@end


@interface WineWindow ()

@property (nonatomic) BOOL disabled;
@property (nonatomic) BOOL noActivate;
@property (readwrite, nonatomic) BOOL floating;
@property (retain, nonatomic) NSWindow* latentParentWindow;

@property (nonatomic) void* hwnd;
@property (retain, readwrite, nonatomic) WineEventQueue* queue;

@property (nonatomic) void* surface;
@property (nonatomic) pthread_mutex_t* surface_mutex;

@property (copy, nonatomic) NSBezierPath* shape;
@property (nonatomic) BOOL shapeChangedSinceLastDraw;
@property (readonly, nonatomic) BOOL needsTransparency;

@property (nonatomic) BOOL colorKeyed;
@property (nonatomic) CGFloat colorKeyRed, colorKeyGreen, colorKeyBlue;
@property (nonatomic) BOOL usePerPixelAlpha;

@property (assign, nonatomic) void* imeData;
@property (nonatomic) BOOL commandDone;

@end


@implementation WineContentView

    - (void) dealloc
    {
        [markedText release];
        [glContexts release];
        [pendingGlContexts release];
        [super dealloc];
    }

    - (BOOL) isFlipped
    {
        return YES;
    }

    - (void) drawRect:(NSRect)rect
    {
        WineWindow* window = (WineWindow*)[self window];

        for (WineOpenGLContext* context in pendingGlContexts)
            context.needsUpdate = TRUE;
        [glContexts addObjectsFromArray:pendingGlContexts];
        [pendingGlContexts removeAllObjects];

        if ([window contentView] != self)
            return;

        if (window.surface && window.surface_mutex &&
            !pthread_mutex_lock(window.surface_mutex))
        {
            const CGRect* rects;
            int count;

            if (get_surface_blit_rects(window.surface, &rects, &count) && count)
            {
                CGContextRef context;
                int i;

                [window.shape addClip];

                context = (CGContextRef)[[NSGraphicsContext currentContext] graphicsPort];
                CGContextSetBlendMode(context, kCGBlendModeCopy);

                for (i = 0; i < count; i++)
                {
                    CGRect imageRect;
                    CGImageRef image;

                    imageRect = CGRectIntersection(rects[i], NSRectToCGRect(rect));
                    image = create_surface_image(window.surface, &imageRect, FALSE);

                    if (image)
                    {
                        if (window.colorKeyed)
                        {
                            CGImageRef maskedImage;
                            CGFloat components[] = { window.colorKeyRed - 0.5, window.colorKeyRed + 0.5,
                                                     window.colorKeyGreen - 0.5, window.colorKeyGreen + 0.5,
                                                     window.colorKeyBlue - 0.5, window.colorKeyBlue + 0.5 };
                            maskedImage = CGImageCreateWithMaskingColors(image, components);
                            if (maskedImage)
                            {
                                CGImageRelease(image);
                                image = maskedImage;
                            }
                        }

                        CGContextDrawImage(context, imageRect, image);

                        CGImageRelease(image);
                    }
                }
            }

            pthread_mutex_unlock(window.surface_mutex);
        }

        // If the window may be transparent, then we have to invalidate the
        // shadow every time we draw.  Also, if this is the first time we've
        // drawn since changing from transparent to opaque.
        if (![window isOpaque] || window.shapeChangedSinceLastDraw)
        {
            window.shapeChangedSinceLastDraw = FALSE;
            [window invalidateShadow];
        }
    }

    - (void) addGLContext:(WineOpenGLContext*)context
    {
        if (!glContexts)
            glContexts = [[NSMutableArray alloc] init];
        if (!pendingGlContexts)
            pendingGlContexts = [[NSMutableArray alloc] init];
        [pendingGlContexts addObject:context];
        [self setNeedsDisplay:YES];
    }

    - (void) removeGLContext:(WineOpenGLContext*)context
    {
        [glContexts removeObjectIdenticalTo:context];
        [pendingGlContexts removeObjectIdenticalTo:context];
    }

    - (void) updateGLContexts
    {
        for (WineOpenGLContext* context in glContexts)
            context.needsUpdate = TRUE;
    }

    - (BOOL) acceptsFirstMouse:(NSEvent*)theEvent
    {
        return YES;
    }

    - (BOOL) preservesContentDuringLiveResize
    {
        // Returning YES from this tells Cocoa to keep our view's content during
        // a Cocoa-driven resize.  In theory, we're also supposed to override
        // -setFrameSize: to mark exposed sections as needing redisplay, but
        // user32 will take care of that in a roundabout way.  This way, we don't
        // redraw until the window surface is flushed.
        //
        // This doesn't do anything when we resize the window ourselves.
        return YES;
    }

    - (BOOL)acceptsFirstResponder
    {
        return [[self window] contentView] == self;
    }

    - (void) completeText:(NSString*)text
    {
        macdrv_event* event;
        WineWindow* window = (WineWindow*)[self window];

        event = macdrv_create_event(IM_SET_TEXT, window);
        event->im_set_text.data = [window imeData];
        event->im_set_text.text = (CFStringRef)[text copy];
        event->im_set_text.complete = TRUE;

        [[window queue] postEvent:event];

        macdrv_release_event(event);

        [markedText deleteCharactersInRange:NSMakeRange(0, [markedText length])];
        markedTextSelection = NSMakeRange(0, 0);
        [[self inputContext] discardMarkedText];
    }

    /*
     * ---------- NSTextInputClient methods ----------
     */
    - (NSTextInputContext*) inputContext
    {
        if (!markedText)
            markedText = [[NSMutableAttributedString alloc] init];
        return [super inputContext];
    }

    - (void) insertText:(id)string replacementRange:(NSRange)replacementRange
    {
        if ([string isKindOfClass:[NSAttributedString class]])
            string = [string string];

        if ([string isKindOfClass:[NSString class]])
            [self completeText:string];
    }

    - (void) doCommandBySelector:(SEL)aSelector
    {
        [(WineWindow*)[self window] setCommandDone:TRUE];
    }

    - (void) setMarkedText:(id)string selectedRange:(NSRange)selectedRange replacementRange:(NSRange)replacementRange
    {
        if ([string isKindOfClass:[NSAttributedString class]])
            string = [string string];

        if ([string isKindOfClass:[NSString class]])
        {
            macdrv_event* event;
            WineWindow* window = (WineWindow*)[self window];

            if (replacementRange.location == NSNotFound)
                replacementRange = NSMakeRange(0, [markedText length]);

            [markedText replaceCharactersInRange:replacementRange withString:string];
            markedTextSelection = selectedRange;
            markedTextSelection.location += replacementRange.location;

            event = macdrv_create_event(IM_SET_TEXT, window);
            event->im_set_text.data = [window imeData];
            event->im_set_text.text = (CFStringRef)[[markedText string] copy];
            event->im_set_text.complete = FALSE;

            [[window queue] postEvent:event];

            macdrv_release_event(event);

            event = macdrv_create_event(IM_SET_CURSOR_POS, window);
            event->im_set_cursor_pos.data = [window imeData];
            event->im_set_cursor_pos.pos = markedTextSelection.location;

            [[window queue] postEvent:event];

            macdrv_release_event(event);

            [[self inputContext] invalidateCharacterCoordinates];
        }
    }

    - (void) unmarkText
    {
        [self completeText:nil];
    }

    - (NSRange) selectedRange
    {
        return markedTextSelection;
    }

    - (NSRange) markedRange
    {
        NSRange range = NSMakeRange(0, [markedText length]);
        if (!range.length)
            range.location = NSNotFound;
        return range;
    }

    - (BOOL) hasMarkedText
    {
        return [markedText length] > 0;
    }

    - (NSAttributedString*) attributedSubstringForProposedRange:(NSRange)aRange actualRange:(NSRangePointer)actualRange
    {
        if (aRange.location >= [markedText length])
            return nil;

        aRange = NSIntersectionRange(aRange, NSMakeRange(0, [markedText length]));
        if (actualRange)
            *actualRange = aRange;
        return [markedText attributedSubstringFromRange:aRange];
    }

    - (NSArray*) validAttributesForMarkedText
    {
        return [NSArray array];
    }

    - (NSRect) firstRectForCharacterRange:(NSRange)aRange actualRange:(NSRangePointer)actualRange
    {
        macdrv_query* query;
        WineWindow* window = (WineWindow*)[self window];
        NSRect ret;

        aRange = NSIntersectionRange(aRange, NSMakeRange(0, [markedText length]));

        query = macdrv_create_query();
        query->type = QUERY_IME_CHAR_RECT;
        query->window = (macdrv_window)[window retain];
        query->ime_char_rect.data = [window imeData];
        query->ime_char_rect.range = CFRangeMake(aRange.location, aRange.length);

        if ([window.queue query:query timeout:1])
        {
            aRange = NSMakeRange(query->ime_char_rect.range.location, query->ime_char_rect.range.length);
            ret = NSRectFromCGRect(query->ime_char_rect.rect);
            [[WineApplicationController sharedController] flipRect:&ret];
        }
        else
            ret = NSMakeRect(100, 100, aRange.length ? 1 : 0, 12);

        macdrv_release_query(query);

        if (actualRange)
            *actualRange = aRange;
        return ret;
    }

    - (NSUInteger) characterIndexForPoint:(NSPoint)aPoint
    {
        return NSNotFound;
    }

    - (NSInteger) windowLevel
    {
        return [[self window] level];
    }

@end


@implementation WineWindow

    @synthesize disabled, noActivate, floating, latentParentWindow, hwnd, queue;
    @synthesize surface, surface_mutex;
    @synthesize shape, shapeChangedSinceLastDraw;
    @synthesize colorKeyed, colorKeyRed, colorKeyGreen, colorKeyBlue;
    @synthesize usePerPixelAlpha;
    @synthesize imeData, commandDone;

    + (WineWindow*) createWindowWithFeatures:(const struct macdrv_window_features*)wf
                                 windowFrame:(NSRect)window_frame
                                        hwnd:(void*)hwnd
                                       queue:(WineEventQueue*)queue
    {
        WineWindow* window;
        WineContentView* contentView;
        NSTrackingArea* trackingArea;

        [[WineApplicationController sharedController] flipRect:&window_frame];

        window = [[[self alloc] initWithContentRect:window_frame
                                          styleMask:style_mask_for_features(wf)
                                            backing:NSBackingStoreBuffered
                                              defer:YES] autorelease];

        if (!window) return nil;

        /* Standardize windows to eliminate differences between titled and
           borderless windows and between NSWindow and NSPanel. */
        [window setHidesOnDeactivate:NO];
        [window setReleasedWhenClosed:NO];

        [window disableCursorRects];
        [window setShowsResizeIndicator:NO];
        [window setHasShadow:wf->shadow];
        [window setAcceptsMouseMovedEvents:YES];
        [window setColorSpace:[NSColorSpace genericRGBColorSpace]];
        [window setDelegate:window];
        window.hwnd = hwnd;
        window.queue = queue;

        [window registerForDraggedTypes:[NSArray arrayWithObjects:(NSString*)kUTTypeData,
                                                                  (NSString*)kUTTypeContent,
                                                                  nil]];

        contentView = [[[WineContentView alloc] initWithFrame:NSZeroRect] autorelease];
        if (!contentView)
            return nil;
        [contentView setAutoresizesSubviews:NO];

        /* We use tracking areas in addition to setAcceptsMouseMovedEvents:YES
           because they give us mouse moves in the background. */
        trackingArea = [[[NSTrackingArea alloc] initWithRect:[contentView bounds]
                                                     options:(NSTrackingMouseMoved |
                                                              NSTrackingActiveAlways |
                                                              NSTrackingInVisibleRect)
                                                       owner:window
                                                    userInfo:nil] autorelease];
        if (!trackingArea)
            return nil;
        [contentView addTrackingArea:trackingArea];

        [window setContentView:contentView];
        [window setInitialFirstResponder:contentView];

        return window;
    }

    - (void) dealloc
    {
        [liveResizeDisplayTimer invalidate];
        [liveResizeDisplayTimer release];
        [queue release];
        [latentParentWindow release];
        [shape release];
        [super dealloc];
    }

    - (void) adjustFeaturesForState
    {
        NSUInteger style = [self styleMask];

        if (style & NSClosableWindowMask)
            [[self standardWindowButton:NSWindowCloseButton] setEnabled:!self.disabled];
        if (style & NSMiniaturizableWindowMask)
            [[self standardWindowButton:NSWindowMiniaturizeButton] setEnabled:!self.disabled];
        if (style & NSResizableWindowMask)
            [[self standardWindowButton:NSWindowZoomButton] setEnabled:!self.disabled];
    }

    - (void) setWindowFeatures:(const struct macdrv_window_features*)wf
    {
        NSUInteger currentStyle = [self styleMask];
        NSUInteger newStyle = style_mask_for_features(wf);

        if (newStyle != currentStyle)
        {
            BOOL showingButtons = (currentStyle & (NSClosableWindowMask | NSMiniaturizableWindowMask | NSResizableWindowMask)) != 0;
            BOOL shouldShowButtons = (newStyle & (NSClosableWindowMask | NSMiniaturizableWindowMask | NSResizableWindowMask)) != 0;
            if (shouldShowButtons != showingButtons && !((newStyle ^ currentStyle) & NSClosableWindowMask))
            {
                // -setStyleMask: is buggy on 10.7+ with respect to NSResizableWindowMask.
                // If transitioning from NSTitledWindowMask | NSResizableWindowMask to
                // just NSTitledWindowMask, the window buttons should disappear rather
                // than just being disabled.  But they don't.  Similarly in reverse.
                // The workaround is to also toggle NSClosableWindowMask at the same time.
                [self setStyleMask:newStyle ^ NSClosableWindowMask];
            }
            [self setStyleMask:newStyle];
        }

        [self adjustFeaturesForState];
        [self setHasShadow:wf->shadow];
    }

    - (BOOL) isOrderedIn
    {
        return [self isVisible] || [self isMiniaturized];
    }

    - (NSInteger) minimumLevelForActive:(BOOL)active
    {
        NSInteger level;

        if (self.floating)
            level = NSFloatingWindowLevel;
        else
            level = NSNormalWindowLevel;

        if (active)
        {
            BOOL fullscreen, captured;
            NSScreen* screen;

            screen = screen_covered_by_rect([self frame], [NSScreen screens]);
            fullscreen = (screen != nil);
            captured = (screen || [self screen]) && [[WineApplicationController sharedController] areDisplaysCaptured];

            if (captured || fullscreen)
            {
                if (captured)
                    level = CGShieldingWindowLevel() + 1; /* Need +1 or we don't get mouse moves */
                else
                    level = NSMainMenuWindowLevel + 1;

                if (self.floating)
                    level++;
            }
        }

        return level;
    }

    - (void) setMacDrvState:(const struct macdrv_window_state*)state
    {
        NSWindowCollectionBehavior behavior;

        self.disabled = state->disabled;
        self.noActivate = state->no_activate;

        if (self.floating != state->floating)
        {
            self.floating = state->floating;
            [[WineApplicationController sharedController] adjustWindowLevels];
        }

        behavior = NSWindowCollectionBehaviorDefault;
        if (state->excluded_by_expose)
            behavior |= NSWindowCollectionBehaviorTransient;
        else
            behavior |= NSWindowCollectionBehaviorManaged;
        if (state->excluded_by_cycle)
        {
            behavior |= NSWindowCollectionBehaviorIgnoresCycle;
            if ([self isOrderedIn])
                [NSApp removeWindowsItem:self];
        }
        else
        {
            behavior |= NSWindowCollectionBehaviorParticipatesInCycle;
            if ([self isOrderedIn])
                [NSApp addWindowsItem:self title:[self title] filename:NO];
        }
        [self setCollectionBehavior:behavior];

        if (state->minimized && ![self isMiniaturized])
        {
            ignore_windowMiniaturize = TRUE;
            [self miniaturize:nil];
        }
        else if (!state->minimized && [self isMiniaturized])
        {
            ignore_windowDeminiaturize = TRUE;
            [self deminiaturize:nil];
        }

        /* Whatever events regarding minimization might have been in the queue are now stale. */
        [queue discardEventsMatchingMask:event_mask_for_type(WINDOW_DID_MINIMIZE) |
                                         event_mask_for_type(WINDOW_DID_UNMINIMIZE)
                               forWindow:self];
    }

    // Determine if, among Wine windows, this window is directly above or below
    // a given other Wine window with no other Wine window intervening.
    // Intervening non-Wine windows are ignored.
    - (BOOL) isOrdered:(NSWindowOrderingMode)orderingMode relativeTo:(WineWindow*)otherWindow
    {
        NSNumber* windowNumber;
        NSNumber* otherWindowNumber;
        NSArray* windowNumbers;
        NSUInteger windowIndex, otherWindowIndex, lowIndex, highIndex, i;

        if (![self isVisible] || ![otherWindow isVisible])
            return FALSE;

        windowNumber = [NSNumber numberWithInteger:[self windowNumber]];
        otherWindowNumber = [NSNumber numberWithInteger:[otherWindow windowNumber]];
        windowNumbers = [[self class] windowNumbersWithOptions:0];
        windowIndex = [windowNumbers indexOfObject:windowNumber];
        otherWindowIndex = [windowNumbers indexOfObject:otherWindowNumber];

        if (windowIndex == NSNotFound || otherWindowIndex == NSNotFound)
            return FALSE;

        if (orderingMode == NSWindowAbove)
        {
            lowIndex = windowIndex;
            highIndex = otherWindowIndex;
        }
        else if (orderingMode == NSWindowBelow)
        {
            lowIndex = otherWindowIndex;
            highIndex = windowIndex;
        }
        else
            return FALSE;

        if (highIndex <= lowIndex)
            return FALSE;

        for (i = lowIndex + 1; i < highIndex; i++)
        {
            NSInteger interveningWindowNumber = [[windowNumbers objectAtIndex:i] integerValue];
            NSWindow* interveningWindow = [NSApp windowWithWindowNumber:interveningWindowNumber];
            if ([interveningWindow isKindOfClass:[WineWindow class]])
                return FALSE;
        }

        return TRUE;
    }

    /* Returns whether or not the window was ordered in, which depends on if
       its frame intersects any screen. */
    - (BOOL) orderBelow:(WineWindow*)prev orAbove:(WineWindow*)next
    {
        WineApplicationController* controller = [WineApplicationController sharedController];
        BOOL on_screen = frame_intersects_screens([self frame], [NSScreen screens]);
        if (on_screen)
        {
            BOOL needAdjustWindowLevels = FALSE;

            [controller transformProcessToForeground];

            NSDisableScreenUpdates();

            if (latentParentWindow)
            {
                if ([latentParentWindow level] > [self level])
                    [self setLevel:[latentParentWindow level]];
                [latentParentWindow addChildWindow:self ordered:NSWindowAbove];
                self.latentParentWindow = nil;
                needAdjustWindowLevels = TRUE;
            }
            if (prev || next)
            {
                WineWindow* other = [prev isVisible] ? prev : next;
                NSWindowOrderingMode orderingMode = [prev isVisible] ? NSWindowBelow : NSWindowAbove;

                if (![self isOrdered:orderingMode relativeTo:other])
                {
                    // This window level may not be right for this window based
                    // on floating-ness, fullscreen-ness, etc.  But we set it
                    // temporarily to allow us to order the windows properly.
                    // Then the levels get fixed by -adjustWindowLevels.
                    if ([self level] != [other level])
                        [self setLevel:[other level]];
                    [self orderWindow:orderingMode relativeTo:[other windowNumber]];
                    needAdjustWindowLevels = TRUE;
                }
            }
            else
            {
                // Again, temporarily set level to make sure we can order to
                // the right place.
                next = [controller frontWineWindow];
                if (next && [self level] < [next level])
                    [self setLevel:[next level]];
                [self orderFront:nil];
                needAdjustWindowLevels = TRUE;
            }
            if (needAdjustWindowLevels)
                [controller adjustWindowLevels];

            NSEnableScreenUpdates();

            /* Cocoa may adjust the frame when the window is ordered onto the screen.
               Generate a frame-changed event just in case.  The back end will ignore
               it if nothing actually changed. */
            [self windowDidResize:nil];

            if (![self isExcludedFromWindowsMenu])
                [NSApp addWindowsItem:self title:[self title] filename:NO];
        }

        return on_screen;
    }

    - (void) doOrderOut
    {
        self.latentParentWindow = [self parentWindow];
        [latentParentWindow removeChildWindow:self];
        [self orderOut:nil];
        [[WineApplicationController sharedController] adjustWindowLevels];
        [NSApp removeWindowsItem:self];
    }

    - (BOOL) setFrameIfOnScreen:(NSRect)contentRect
    {
        NSArray* screens = [NSScreen screens];
        BOOL on_screen = [self isOrderedIn];

        if (![screens count]) return on_screen;

        /* Origin is (left, top) in a top-down space.  Need to convert it to
           (left, bottom) in a bottom-up space. */
        [[WineApplicationController sharedController] flipRect:&contentRect];

        if (on_screen)
        {
            on_screen = frame_intersects_screens(contentRect, screens);
            if (!on_screen)
                [self doOrderOut];
        }

        /* The back end is establishing a new window size and position.  It's
           not interested in any stale events regarding those that may be sitting
           in the queue. */
        [queue discardEventsMatchingMask:event_mask_for_type(WINDOW_FRAME_CHANGED)
                               forWindow:self];

        if (!NSIsEmptyRect(contentRect))
        {
            NSRect frame, oldFrame;

            oldFrame = [self frame];
            frame = [self frameRectForContentRect:contentRect];
            if (!NSEqualRects(frame, oldFrame))
            {
                if (NSEqualSizes(frame.size, oldFrame.size))
                    [self setFrameOrigin:frame.origin];
                else
                    [self setFrame:frame display:YES];

                if (on_screen)
                {
                    BOOL fullscreen = (screen_covered_by_rect(frame, screens) != nil);
                    BOOL oldFullscreen = (screen_covered_by_rect(oldFrame, screens) != nil);

                    if (fullscreen != oldFullscreen)
                        [[WineApplicationController sharedController] adjustWindowLevels];

                    /* In case Cocoa adjusted the frame we tried to set, generate a frame-changed
                       event.  The back end will ignore it if nothing actually changed. */
                    [self windowDidResize:nil];
                }
            }
        }

        return on_screen;
    }

    - (void) setMacDrvParentWindow:(WineWindow*)parent
    {
        if ([self parentWindow] != parent)
        {
            [[self parentWindow] removeChildWindow:self];
            self.latentParentWindow = nil;
            if ([self isVisible] && parent)
            {
                if ([parent level] > [self level])
                    [self setLevel:[parent level]];
                [parent addChildWindow:self ordered:NSWindowAbove];
                [[WineApplicationController sharedController] adjustWindowLevels];
            }
            else
                self.latentParentWindow = parent;
        }
    }

    - (void) setDisabled:(BOOL)newValue
    {
        if (disabled != newValue)
        {
            disabled = newValue;
            [self adjustFeaturesForState];

            if (disabled)
            {
                NSSize size = [self frame].size;
                [self setMinSize:size];
                [self setMaxSize:size];
            }
            else
            {
                [self setMaxSize:NSMakeSize(FLT_MAX, FLT_MAX)];
                [self setMinSize:NSZeroSize];
            }
        }
    }

    - (BOOL) needsTransparency
    {
        return self.shape || self.colorKeyed || self.usePerPixelAlpha;
    }

    - (void) checkTransparency
    {
        if (![self isOpaque] && !self.needsTransparency)
        {
            [self setBackgroundColor:[NSColor windowBackgroundColor]];
            [self setOpaque:YES];
        }
        else if ([self isOpaque] && self.needsTransparency)
        {
            [self setBackgroundColor:[NSColor clearColor]];
            [self setOpaque:NO];
        }
    }

    - (void) setShape:(NSBezierPath*)newShape
    {
        if (shape == newShape) return;
        if (shape && newShape && [shape isEqual:newShape]) return;

        if (shape)
        {
            [[self contentView] setNeedsDisplayInRect:[shape bounds]];
            [shape release];
        }
        if (newShape)
            [[self contentView] setNeedsDisplayInRect:[newShape bounds]];

        shape = [newShape copy];
        self.shapeChangedSinceLastDraw = TRUE;

        [self checkTransparency];
    }

    - (void) makeFocused:(BOOL)activate
    {
        WineApplicationController* controller = [WineApplicationController sharedController];
        NSArray* screens;
        WineWindow* front;

        [controller transformProcessToForeground];

        /* If a borderless window is offscreen, orderFront: won't move
           it onscreen like it would for a titled window.  Do that ourselves. */
        screens = [NSScreen screens];
        if (!([self styleMask] & NSTitledWindowMask) && ![self isOrderedIn] &&
            !frame_intersects_screens([self frame], screens))
        {
            NSScreen* primaryScreen = [screens objectAtIndex:0];
            NSRect frame = [primaryScreen frame];
            [self setFrameTopLeftPoint:NSMakePoint(NSMinX(frame), NSMaxY(frame))];
            frame = [self constrainFrameRect:[self frame] toScreen:primaryScreen];
            [self setFrame:frame display:YES];
        }

        if (activate)
            [NSApp activateIgnoringOtherApps:YES];

        NSDisableScreenUpdates();

        if (latentParentWindow)
        {
            if ([latentParentWindow level] > [self level])
                [self setLevel:[latentParentWindow level]];
            [latentParentWindow addChildWindow:self ordered:NSWindowAbove];
            self.latentParentWindow = nil;
        }
        front = [controller frontWineWindow];
        if (front && [self level] < [front level])
            [self setLevel:[front level]];
        [self orderFront:nil];
        [controller adjustWindowLevels];

        NSEnableScreenUpdates();

        causing_becomeKeyWindow = TRUE;
        [self makeKeyWindow];
        causing_becomeKeyWindow = FALSE;

        if (![self isExcludedFromWindowsMenu])
            [NSApp addWindowsItem:self title:[self title] filename:NO];

        /* Cocoa may adjust the frame when the window is ordered onto the screen.
           Generate a frame-changed event just in case.  The back end will ignore
           it if nothing actually changed. */
        [self windowDidResize:nil];
    }

    - (void) postKey:(uint16_t)keyCode
             pressed:(BOOL)pressed
           modifiers:(NSUInteger)modifiers
               event:(NSEvent*)theEvent
    {
        macdrv_event* event;
        CGEventRef cgevent;
        WineApplicationController* controller = [WineApplicationController sharedController];

        event = macdrv_create_event(pressed ? KEY_PRESS : KEY_RELEASE, self);
        event->key.keycode   = keyCode;
        event->key.modifiers = modifiers;
        event->key.time_ms   = [controller ticksForEventTime:[theEvent timestamp]];

        if ((cgevent = [theEvent CGEvent]))
        {
            CGEventSourceKeyboardType keyboardType = CGEventGetIntegerValueField(cgevent,
                                                        kCGKeyboardEventKeyboardType);
            if (keyboardType != controller.keyboardType)
            {
                controller.keyboardType = keyboardType;
                [controller keyboardSelectionDidChange];
            }
        }

        [queue postEvent:event];

        macdrv_release_event(event);
    }

    - (void) postKeyEvent:(NSEvent *)theEvent
    {
        [self flagsChanged:theEvent];
        [self postKey:[theEvent keyCode]
              pressed:[theEvent type] == NSKeyDown
            modifiers:[theEvent modifierFlags]
                event:theEvent];
    }


    /*
     * ---------- NSWindow method overrides ----------
     */
    - (BOOL) canBecomeKeyWindow
    {
        if (causing_becomeKeyWindow) return YES;
        if (self.disabled || self.noActivate) return NO;
        return [self isKeyWindow];
    }

    - (BOOL) canBecomeMainWindow
    {
        return [self canBecomeKeyWindow];
    }

    - (NSRect) constrainFrameRect:(NSRect)frameRect toScreen:(NSScreen *)screen
    {
        // If a window is sized to completely cover a screen, then it's in
        // full-screen mode.  In that case, we don't allow NSWindow to constrain
        // it.
        NSRect contentRect = [self contentRectForFrameRect:frameRect];
        if (!screen_covered_by_rect(contentRect, [NSScreen screens]))
            frameRect = [super constrainFrameRect:frameRect toScreen:screen];
        return frameRect;
    }

    - (BOOL) isExcludedFromWindowsMenu
    {
        return !([self collectionBehavior] & NSWindowCollectionBehaviorParticipatesInCycle);
    }

    - (BOOL) validateMenuItem:(NSMenuItem *)menuItem
    {
        BOOL ret = [super validateMenuItem:menuItem];

        if ([menuItem action] == @selector(makeKeyAndOrderFront:))
            ret = [self isKeyWindow] || (!self.disabled && !self.noActivate);

        return ret;
    }

    /* We don't call this.  It's the action method of the items in the Window menu. */
    - (void) makeKeyAndOrderFront:(id)sender
    {
        WineApplicationController* controller = [WineApplicationController sharedController];
        WineWindow* front = [controller frontWineWindow];

        if (![self isKeyWindow] && !self.disabled && !self.noActivate)
            [controller windowGotFocus:self];

        if (front && [self level] < [front level])
            [self setLevel:[front level]];
        [self orderFront:nil];
        [controller adjustWindowLevels];
    }

    - (void) sendEvent:(NSEvent*)event
    {
        WineApplicationController* controller = [WineApplicationController sharedController];

        /* NSWindow consumes certain key-down events as part of Cocoa's keyboard
           interface control.  For example, Control-Tab switches focus among
           views.  We want to bypass that feature, so directly route key-down
           events to -keyDown:. */
        if ([event type] == NSKeyDown)
            [[self firstResponder] keyDown:event];
        else
        {
            if ([event type] == NSLeftMouseDown)
            {
                /* Since our windows generally claim they can't be made key, clicks
                   in their title bars are swallowed by the theme frame stuff.  So,
                   we hook directly into the event stream and assume that any click
                   in the window will activate it, if Wine and the Win32 program
                   accept. */
                if (![self isKeyWindow] && !self.disabled && !self.noActivate)
                    [controller windowGotFocus:self];
            }

            [super sendEvent:event];
        }
    }


    /*
     * ---------- NSResponder method overrides ----------
     */
    - (void) keyDown:(NSEvent *)theEvent { [self postKeyEvent:theEvent]; }
    - (void) keyUp:(NSEvent *)theEvent   { [self postKeyEvent:theEvent]; }

    - (void) flagsChanged:(NSEvent *)theEvent
    {
        static const struct {
            NSUInteger  mask;
            uint16_t    keycode;
        } modifiers[] = {
            { NX_ALPHASHIFTMASK,        kVK_CapsLock },
            { NX_DEVICELSHIFTKEYMASK,   kVK_Shift },
            { NX_DEVICERSHIFTKEYMASK,   kVK_RightShift },
            { NX_DEVICELCTLKEYMASK,     kVK_Control },
            { NX_DEVICERCTLKEYMASK,     kVK_RightControl },
            { NX_DEVICELALTKEYMASK,     kVK_Option },
            { NX_DEVICERALTKEYMASK,     kVK_RightOption },
            { NX_DEVICELCMDKEYMASK,     kVK_Command },
            { NX_DEVICERCMDKEYMASK,     kVK_RightCommand },
        };

        NSUInteger modifierFlags = [theEvent modifierFlags];
        NSUInteger changed;
        int i, last_changed;

        fix_device_modifiers_by_generic(&modifierFlags);
        changed = modifierFlags ^ lastModifierFlags;

        last_changed = -1;
        for (i = 0; i < sizeof(modifiers)/sizeof(modifiers[0]); i++)
            if (changed & modifiers[i].mask)
                last_changed = i;

        for (i = 0; i <= last_changed; i++)
        {
            if (changed & modifiers[i].mask)
            {
                BOOL pressed = (modifierFlags & modifiers[i].mask) != 0;

                if (i == last_changed)
                    lastModifierFlags = modifierFlags;
                else
                {
                    lastModifierFlags ^= modifiers[i].mask;
                    fix_generic_modifiers_by_device(&lastModifierFlags);
                }

                // Caps lock generates one event for each press-release action.
                // We need to simulate a pair of events for each actual event.
                if (modifiers[i].mask == NX_ALPHASHIFTMASK)
                {
                    [self postKey:modifiers[i].keycode
                          pressed:TRUE
                        modifiers:lastModifierFlags
                            event:(NSEvent*)theEvent];
                    pressed = FALSE;
                }

                [self postKey:modifiers[i].keycode
                      pressed:pressed
                    modifiers:lastModifierFlags
                        event:(NSEvent*)theEvent];
            }
        }
    }


    /*
     * ---------- NSWindowDelegate methods ----------
     */
    - (void)windowDidBecomeKey:(NSNotification *)notification
    {
        WineApplicationController* controller = [WineApplicationController sharedController];
        NSEvent* event = [controller lastFlagsChanged];
        if (event)
            [self flagsChanged:event];

        if (causing_becomeKeyWindow) return;

        [controller windowGotFocus:self];
    }

    - (void)windowDidDeminiaturize:(NSNotification *)notification
    {
        if (!ignore_windowDeminiaturize)
        {
            macdrv_event* event;

            /* Coalesce events by discarding any previous ones still in the queue. */
            [queue discardEventsMatchingMask:event_mask_for_type(WINDOW_DID_MINIMIZE) |
                                             event_mask_for_type(WINDOW_DID_UNMINIMIZE)
                                   forWindow:self];

            event = macdrv_create_event(WINDOW_DID_UNMINIMIZE, self);
            [queue postEvent:event];
            macdrv_release_event(event);
        }

        ignore_windowDeminiaturize = FALSE;

        [[WineApplicationController sharedController] adjustWindowLevels];
    }

    - (void) windowDidEndLiveResize:(NSNotification *)notification
    {
        [liveResizeDisplayTimer invalidate];
        [liveResizeDisplayTimer release];
        liveResizeDisplayTimer = nil;
    }

    - (void)windowDidMove:(NSNotification *)notification
    {
        [self windowDidResize:notification];
    }

    - (void)windowDidResignKey:(NSNotification *)notification
    {
        macdrv_event* event;

        if (causing_becomeKeyWindow) return;

        event = macdrv_create_event(WINDOW_LOST_FOCUS, self);
        [queue postEvent:event];
        macdrv_release_event(event);
    }

    - (void)windowDidResize:(NSNotification *)notification
    {
        macdrv_event* event;
        NSRect frame = [self frame];

        if (self.disabled)
        {
            NSSize size = frame.size;
            [self setMinSize:size];
            [self setMaxSize:size];
        }

        frame = [self contentRectForFrameRect:frame];
        [[WineApplicationController sharedController] flipRect:&frame];

        /* Coalesce events by discarding any previous ones still in the queue. */
        [queue discardEventsMatchingMask:event_mask_for_type(WINDOW_FRAME_CHANGED)
                               forWindow:self];

        event = macdrv_create_event(WINDOW_FRAME_CHANGED, self);
        event->window_frame_changed.frame = NSRectToCGRect(frame);
        [queue postEvent:event];
        macdrv_release_event(event);

        [[[self contentView] inputContext] invalidateCharacterCoordinates];
    }

    - (BOOL)windowShouldClose:(id)sender
    {
        macdrv_event* event = macdrv_create_event(WINDOW_CLOSE_REQUESTED, self);
        [queue postEvent:event];
        macdrv_release_event(event);
        return NO;
    }

    - (void)windowWillMiniaturize:(NSNotification *)notification
    {
        if (!ignore_windowMiniaturize)
        {
            macdrv_event* event;

            /* Coalesce events by discarding any previous ones still in the queue. */
            [queue discardEventsMatchingMask:event_mask_for_type(WINDOW_DID_MINIMIZE) |
                                             event_mask_for_type(WINDOW_DID_UNMINIMIZE)
                                   forWindow:self];

            event = macdrv_create_event(WINDOW_DID_MINIMIZE, self);
            [queue postEvent:event];
            macdrv_release_event(event);
        }

        ignore_windowMiniaturize = FALSE;
    }

    - (void) windowWillStartLiveResize:(NSNotification *)notification
    {
        // There's a strange restriction in window redrawing during Cocoa-
        // managed window resizing.  Only calls to -[NSView setNeedsDisplay...]
        // that happen synchronously when Cocoa tells us that our window size
        // has changed or asynchronously in a short interval thereafter provoke
        // the window to redraw.  Calls to those methods that happen asynchronously
        // a half second or more after the last change of the window size aren't
        // heeded until the next resize-related user event (e.g. mouse movement).
        //
        // Wine often has a significant delay between when it's been told that
        // the window has changed size and when it can flush completed drawing.
        // So, our windows would get stuck with incomplete drawing for as long
        // as the user holds the mouse button down and doesn't move it.
        //
        // We address this by "manually" asking our windows to check if they need
        // redrawing every so often (during live resize only).
        [self windowDidEndLiveResize:nil];
        liveResizeDisplayTimer = [NSTimer scheduledTimerWithTimeInterval:1.0/30.0
                                                                  target:self
                                                                selector:@selector(displayIfNeeded)
                                                                userInfo:nil
                                                                 repeats:YES];
        [liveResizeDisplayTimer retain];
        [[NSRunLoop currentRunLoop] addTimer:liveResizeDisplayTimer
                                     forMode:NSRunLoopCommonModes];
    }


    /*
     * ---------- NSPasteboardOwner methods ----------
     */
    - (void) pasteboard:(NSPasteboard *)sender provideDataForType:(NSString *)type
    {
        macdrv_query* query = macdrv_create_query();
        query->type = QUERY_PASTEBOARD_DATA;
        query->window = (macdrv_window)[self retain];
        query->pasteboard_data.type = (CFStringRef)[type copy];

        [self.queue query:query timeout:3];
        macdrv_release_query(query);
    }


    /*
     * ---------- NSDraggingDestination methods ----------
     */
    - (NSDragOperation) draggingEntered:(id <NSDraggingInfo>)sender
    {
        return [self draggingUpdated:sender];
    }

    - (void) draggingExited:(id <NSDraggingInfo>)sender
    {
        // This isn't really a query.  We don't need any response.  However, it
        // has to be processed in a similar manner as the other drag-and-drop
        // queries in order to maintain the proper order of operations.
        macdrv_query* query = macdrv_create_query();
        query->type = QUERY_DRAG_EXITED;
        query->window = (macdrv_window)[self retain];

        [self.queue query:query timeout:0.1];
        macdrv_release_query(query);
    }

    - (NSDragOperation) draggingUpdated:(id <NSDraggingInfo>)sender
    {
        NSDragOperation ret;
        NSPoint pt = [[self contentView] convertPoint:[sender draggingLocation] fromView:nil];
        NSPasteboard* pb = [sender draggingPasteboard];

        macdrv_query* query = macdrv_create_query();
        query->type = QUERY_DRAG_OPERATION;
        query->window = (macdrv_window)[self retain];
        query->drag_operation.x = pt.x;
        query->drag_operation.y = pt.y;
        query->drag_operation.offered_ops = [sender draggingSourceOperationMask];
        query->drag_operation.accepted_op = NSDragOperationNone;
        query->drag_operation.pasteboard = (CFTypeRef)[pb retain];

        [self.queue query:query timeout:3];
        ret = query->status ? query->drag_operation.accepted_op : NSDragOperationNone;
        macdrv_release_query(query);

        return ret;
    }

    - (BOOL) performDragOperation:(id <NSDraggingInfo>)sender
    {
        BOOL ret;
        NSPoint pt = [[self contentView] convertPoint:[sender draggingLocation] fromView:nil];
        NSPasteboard* pb = [sender draggingPasteboard];

        macdrv_query* query = macdrv_create_query();
        query->type = QUERY_DRAG_DROP;
        query->window = (macdrv_window)[self retain];
        query->drag_drop.x = pt.x;
        query->drag_drop.y = pt.y;
        query->drag_drop.op = [sender draggingSourceOperationMask];
        query->drag_drop.pasteboard = (CFTypeRef)[pb retain];

        [self.queue query:query timeout:3 * 60 processEvents:YES];
        ret = query->status;
        macdrv_release_query(query);

        return ret;
    }

    - (BOOL) wantsPeriodicDraggingUpdates
    {
        return NO;
    }

@end


/***********************************************************************
 *              macdrv_create_cocoa_window
 *
 * Create a Cocoa window with the given content frame and features (e.g.
 * title bar, close box, etc.).
 */
macdrv_window macdrv_create_cocoa_window(const struct macdrv_window_features* wf,
        CGRect frame, void* hwnd, macdrv_event_queue queue)
{
    __block WineWindow* window;

    OnMainThread(^{
        window = [[WineWindow createWindowWithFeatures:wf
                                           windowFrame:NSRectFromCGRect(frame)
                                                  hwnd:hwnd
                                                 queue:(WineEventQueue*)queue] retain];
    });

    return (macdrv_window)window;
}

/***********************************************************************
 *              macdrv_destroy_cocoa_window
 *
 * Destroy a Cocoa window.
 */
void macdrv_destroy_cocoa_window(macdrv_window w)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineWindow* window = (WineWindow*)w;

    [window.queue discardEventsMatchingMask:-1 forWindow:window];
    [window close];
    [window release];

    [pool release];
}

/***********************************************************************
 *              macdrv_get_window_hwnd
 *
 * Get the hwnd that was set for the window at creation.
 */
void* macdrv_get_window_hwnd(macdrv_window w)
{
    WineWindow* window = (WineWindow*)w;
    return window.hwnd;
}

/***********************************************************************
 *              macdrv_set_cocoa_window_features
 *
 * Update a Cocoa window's features.
 */
void macdrv_set_cocoa_window_features(macdrv_window w,
        const struct macdrv_window_features* wf)
{
    WineWindow* window = (WineWindow*)w;

    OnMainThread(^{
        [window setWindowFeatures:wf];
    });
}

/***********************************************************************
 *              macdrv_set_cocoa_window_state
 *
 * Update a Cocoa window's state.
 */
void macdrv_set_cocoa_window_state(macdrv_window w,
        const struct macdrv_window_state* state)
{
    WineWindow* window = (WineWindow*)w;

    OnMainThread(^{
        [window setMacDrvState:state];
    });
}

/***********************************************************************
 *              macdrv_set_cocoa_window_title
 *
 * Set a Cocoa window's title.
 */
void macdrv_set_cocoa_window_title(macdrv_window w, const unsigned short* title,
        size_t length)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineWindow* window = (WineWindow*)w;
    NSString* titleString;

    if (title)
        titleString = [NSString stringWithCharacters:title length:length];
    else
        titleString = @"";
    OnMainThreadAsync(^{
        [window setTitle:titleString];
        if ([window isOrderedIn] && ![window isExcludedFromWindowsMenu])
            [NSApp changeWindowsItem:window title:titleString filename:NO];
    });

    [pool release];
}

/***********************************************************************
 *              macdrv_order_cocoa_window
 *
 * Reorder a Cocoa window relative to other windows.  If prev is
 * non-NULL, it is ordered below that window.  Else, if next is non-NULL,
 * it is ordered above that window.  Otherwise, it is ordered to the
 * front.
 *
 * Returns true if the window has actually been ordered onto the screen
 * (i.e. if its frame intersects with a screen).  Otherwise, false.
 */
int macdrv_order_cocoa_window(macdrv_window w, macdrv_window prev,
        macdrv_window next)
{
    WineWindow* window = (WineWindow*)w;
    __block BOOL on_screen;

    OnMainThread(^{
        on_screen = [window orderBelow:(WineWindow*)prev
                               orAbove:(WineWindow*)next];
    });

    return on_screen;
}

/***********************************************************************
 *              macdrv_hide_cocoa_window
 *
 * Hides a Cocoa window.
 */
void macdrv_hide_cocoa_window(macdrv_window w)
{
    WineWindow* window = (WineWindow*)w;

    OnMainThread(^{
        [window doOrderOut];
    });
}

/***********************************************************************
 *              macdrv_set_cocoa_window_frame
 *
 * Move a Cocoa window.  If the window has been moved out of the bounds
 * of the desktop, it is ordered out.  (This routine won't ever order a
 * window in, though.)
 *
 * Returns true if the window is on screen; false otherwise.
 */
int macdrv_set_cocoa_window_frame(macdrv_window w, const CGRect* new_frame)
{
    WineWindow* window = (WineWindow*)w;
    __block BOOL on_screen;

    OnMainThread(^{
        on_screen = [window setFrameIfOnScreen:NSRectFromCGRect(*new_frame)];
    });

    return on_screen;
}

/***********************************************************************
 *              macdrv_get_cocoa_window_frame
 *
 * Gets the frame of a Cocoa window.
 */
void macdrv_get_cocoa_window_frame(macdrv_window w, CGRect* out_frame)
{
    WineWindow* window = (WineWindow*)w;

    OnMainThread(^{
        NSRect frame;

        frame = [window contentRectForFrameRect:[window frame]];
        [[WineApplicationController sharedController] flipRect:&frame];
        *out_frame = NSRectToCGRect(frame);
    });
}

/***********************************************************************
 *              macdrv_set_cocoa_parent_window
 *
 * Sets the parent window for a Cocoa window.  If parent is NULL, clears
 * the parent window.
 */
void macdrv_set_cocoa_parent_window(macdrv_window w, macdrv_window parent)
{
    WineWindow* window = (WineWindow*)w;

    OnMainThread(^{
        [window setMacDrvParentWindow:(WineWindow*)parent];
    });
}

/***********************************************************************
 *              macdrv_set_window_surface
 */
void macdrv_set_window_surface(macdrv_window w, void *surface, pthread_mutex_t *mutex)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineWindow* window = (WineWindow*)w;

    OnMainThread(^{
        window.surface = surface;
        window.surface_mutex = mutex;
    });

    [pool release];
}

/***********************************************************************
 *              macdrv_window_needs_display
 *
 * Mark a window as needing display in a specified rect (in non-client
 * area coordinates).
 */
void macdrv_window_needs_display(macdrv_window w, CGRect rect)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineWindow* window = (WineWindow*)w;

    OnMainThreadAsync(^{
        [[window contentView] setNeedsDisplayInRect:NSRectFromCGRect(rect)];
    });

    [pool release];
}

/***********************************************************************
 *              macdrv_set_window_shape
 *
 * Sets the shape of a Cocoa window from an array of rectangles.  If
 * rects is NULL, resets the window's shape to its frame.
 */
void macdrv_set_window_shape(macdrv_window w, const CGRect *rects, int count)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineWindow* window = (WineWindow*)w;

    OnMainThread(^{
        if (!rects || !count)
            window.shape = nil;
        else
        {
            NSBezierPath* path;
            unsigned int i;

            path = [NSBezierPath bezierPath];
            for (i = 0; i < count; i++)
                [path appendBezierPathWithRect:NSRectFromCGRect(rects[i])];
            window.shape = path;
        }
    });

    [pool release];
}

/***********************************************************************
 *              macdrv_set_window_alpha
 */
void macdrv_set_window_alpha(macdrv_window w, CGFloat alpha)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineWindow* window = (WineWindow*)w;

    [window setAlphaValue:alpha];

    [pool release];
}

/***********************************************************************
 *              macdrv_set_window_color_key
 */
void macdrv_set_window_color_key(macdrv_window w, CGFloat keyRed, CGFloat keyGreen,
                                 CGFloat keyBlue)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineWindow* window = (WineWindow*)w;

    OnMainThread(^{
        window.colorKeyed       = TRUE;
        window.colorKeyRed      = keyRed;
        window.colorKeyGreen    = keyGreen;
        window.colorKeyBlue     = keyBlue;
        [window checkTransparency];
    });

    [pool release];
}

/***********************************************************************
 *              macdrv_clear_window_color_key
 */
void macdrv_clear_window_color_key(macdrv_window w)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineWindow* window = (WineWindow*)w;

    OnMainThread(^{
        window.colorKeyed = FALSE;
        [window checkTransparency];
    });

    [pool release];
}

/***********************************************************************
 *              macdrv_window_use_per_pixel_alpha
 */
void macdrv_window_use_per_pixel_alpha(macdrv_window w, int use_per_pixel_alpha)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineWindow* window = (WineWindow*)w;

    OnMainThread(^{
        window.usePerPixelAlpha = use_per_pixel_alpha;
        [window checkTransparency];
    });

    [pool release];
}

/***********************************************************************
 *              macdrv_give_cocoa_window_focus
 *
 * Makes the Cocoa window "key" (gives it keyboard focus).  This also
 * orders it front and, if its frame was not within the desktop bounds,
 * Cocoa will typically move it on-screen.
 */
void macdrv_give_cocoa_window_focus(macdrv_window w, int activate)
{
    WineWindow* window = (WineWindow*)w;

    OnMainThread(^{
        [window makeFocused:activate];
    });
}

/***********************************************************************
 *              macdrv_create_view
 *
 * Creates and returns a view in the specified rect of the window.  The
 * caller is responsible for calling macdrv_dispose_view() on the view
 * when it is done with it.
 */
macdrv_view macdrv_create_view(macdrv_window w, CGRect rect)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineWindow* window = (WineWindow*)w;
    __block WineContentView* view;

    if (CGRectIsNull(rect)) rect = CGRectZero;

    OnMainThread(^{
        NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];

        view = [[WineContentView alloc] initWithFrame:NSRectFromCGRect(rect)];
        [view setAutoresizesSubviews:NO];
        [nc addObserver:view
               selector:@selector(updateGLContexts)
                   name:NSViewGlobalFrameDidChangeNotification
                 object:view];
        [nc addObserver:view
               selector:@selector(updateGLContexts)
                   name:NSApplicationDidChangeScreenParametersNotification
                 object:NSApp];
        [[window contentView] addSubview:view];
    });

    [pool release];
    return (macdrv_view)view;
}

/***********************************************************************
 *              macdrv_dispose_view
 *
 * Destroys a view previously returned by macdrv_create_view.
 */
void macdrv_dispose_view(macdrv_view v)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineContentView* view = (WineContentView*)v;

    OnMainThread(^{
        NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];

        [nc removeObserver:view
                      name:NSViewGlobalFrameDidChangeNotification
                    object:view];
        [nc removeObserver:view
                      name:NSApplicationDidChangeScreenParametersNotification
                    object:NSApp];
        [view removeFromSuperview];
        [view release];
    });

    [pool release];
}

/***********************************************************************
 *              macdrv_set_view_window_and_frame
 *
 * Move a view to a new window and/or position within its window.  If w
 * is NULL, leave the view in its current window and just change its
 * frame.
 */
void macdrv_set_view_window_and_frame(macdrv_view v, macdrv_window w, CGRect rect)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineContentView* view = (WineContentView*)v;
    WineWindow* window = (WineWindow*)w;

    if (CGRectIsNull(rect)) rect = CGRectZero;

    OnMainThread(^{
        BOOL changedWindow = (window && window != [view window]);
        NSRect newFrame = NSRectFromCGRect(rect);
        NSRect oldFrame = [view frame];

        if (changedWindow)
        {
            [view removeFromSuperview];
            [[window contentView] addSubview:view];
        }

        if (!NSEqualRects(oldFrame, newFrame))
        {
            if (!changedWindow)
                [[view superview] setNeedsDisplayInRect:oldFrame];
            if (NSEqualPoints(oldFrame.origin, newFrame.origin))
                [view setFrameSize:newFrame.size];
            else if (NSEqualSizes(oldFrame.size, newFrame.size))
                [view setFrameOrigin:newFrame.origin];
            else
                [view setFrame:newFrame];
            [view setNeedsDisplay:YES];
        }
    });

    [pool release];
}

/***********************************************************************
 *              macdrv_add_view_opengl_context
 *
 * Add an OpenGL context to the list being tracked for each view.
 */
void macdrv_add_view_opengl_context(macdrv_view v, macdrv_opengl_context c)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineContentView* view = (WineContentView*)v;
    WineOpenGLContext *context = (WineOpenGLContext*)c;

    OnMainThreadAsync(^{
        [view addGLContext:context];
    });

    [pool release];
}

/***********************************************************************
 *              macdrv_remove_view_opengl_context
 *
 * Add an OpenGL context to the list being tracked for each view.
 */
void macdrv_remove_view_opengl_context(macdrv_view v, macdrv_opengl_context c)
{
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    WineContentView* view = (WineContentView*)v;
    WineOpenGLContext *context = (WineOpenGLContext*)c;

    OnMainThreadAsync(^{
        [view removeGLContext:context];
    });

    [pool release];
}

/***********************************************************************
 *              macdrv_window_background_color
 *
 * Returns the standard Mac window background color as a 32-bit value of
 * the form 0x00rrggbb.
 */
uint32_t macdrv_window_background_color(void)
{
    static uint32_t result;
    static dispatch_once_t once;

    // Annoyingly, [NSColor windowBackgroundColor] refuses to convert to other
    // color spaces (RGB or grayscale).  So, the only way to get RGB values out
    // of it is to draw with it.
    dispatch_once(&once, ^{
        OnMainThread(^{
            unsigned char rgbx[4];
            unsigned char *planes = rgbx;
            NSBitmapImageRep *bitmap = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:&planes
                                                                               pixelsWide:1
                                                                               pixelsHigh:1
                                                                            bitsPerSample:8
                                                                          samplesPerPixel:3
                                                                                 hasAlpha:NO
                                                                                 isPlanar:NO
                                                                           colorSpaceName:NSCalibratedRGBColorSpace
                                                                             bitmapFormat:0
                                                                              bytesPerRow:4
                                                                             bitsPerPixel:32];
            [NSGraphicsContext saveGraphicsState];
            [NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithBitmapImageRep:bitmap]];
            [[NSColor windowBackgroundColor] set];
            NSRectFill(NSMakeRect(0, 0, 1, 1));
            [NSGraphicsContext restoreGraphicsState];
            [bitmap release];
            result = rgbx[0] << 16 | rgbx[1] << 8 | rgbx[2];
        });
    });

    return result;
}

/***********************************************************************
 *              macdrv_send_text_input_event
 */
int macdrv_send_text_input_event(int pressed, unsigned int flags, int repeat, int keyc, void* data)
{
    __block BOOL ret;

    OnMainThread(^{
        WineWindow* window = (WineWindow*)[NSApp keyWindow];
        if (![window isKindOfClass:[WineWindow class]])
        {
            window = (WineWindow*)[NSApp mainWindow];
            if (![window isKindOfClass:[WineWindow class]])
                window = [[WineApplicationController sharedController] frontWineWindow];
        }

        if (window)
        {
            NSUInteger localFlags = flags;
            CGEventRef c;
            NSEvent* event;

            window.imeData = data;
            fix_device_modifiers_by_generic(&localFlags);

            // An NSEvent created with +keyEventWithType:... is internally marked
            // as synthetic and doesn't get sent through input methods.  But one
            // created from a CGEvent doesn't have that problem.
            c = CGEventCreateKeyboardEvent(NULL, keyc, pressed);
            CGEventSetFlags(c, localFlags);
            CGEventSetIntegerValueField(c, kCGKeyboardEventAutorepeat, repeat);
            event = [NSEvent eventWithCGEvent:c];
            CFRelease(c);

            window.commandDone = FALSE;
            ret = [[[window contentView] inputContext] handleEvent:event] && !window.commandDone;
        }
        else
            ret = FALSE;
    });

    return ret;
}