#include "wx/cocoa/autorelease.h"
#include "wx/cocoa/string.h"
#include "wx/cocoa/trackingrectmanager.h"
+#include "wx/mac/corefoundation/cfref.h"
+#import <Foundation/NSArray.h>
#import <Foundation/NSRunLoop.h>
#include "wx/cocoa/objc/NSView.h"
#import <AppKit/NSEvent.h>
#import <Foundation/NSException.h>
#import <AppKit/NSApplication.h>
#import <AppKit/NSWindow.h>
+#import <AppKit/NSScreen.h>
// Turn this on to paint green over the dummy views for debugging
#undef WXCOCOA_FILL_DUMMY_VIEW
#import <AppKit/NSBezierPath.h>
#endif //def WXCOCOA_FILL_DUMMY_VIEW
+// STL list used by wxCocoaMouseMovedEventSynthesizer
+#include <list>
+
/* NSComparisonResult is typedef'd as an enum pre-Leopard but typedef'd as
* NSInteger post-Leopard. Pre-Leopard the Cocoa toolkit expects a function
* returning int and not NSComparisonResult. Post-Leopard the Cocoa toolkit
- (void)getRectsBeingDrawn:(const NSRect **)rects count:(int *)count;
@end
+// ========================================================================
+// Helper functions for converting to/from wxWidgets coordinates and a
+// specified NSView's coordinate system.
+// ========================================================================
NSPoint CocoaTransformNSViewBoundsToWx(NSView *nsview, NSPoint pointBounds)
{
wxCHECK_MSG(nsview, pointBounds, wxT("Need to have a Cocoa view to do translation"));
);
}
+// ============================================================================
+// Screen coordinate helpers
+// ============================================================================
+
+/*
+General observation about Cocoa screen coordinates:
+It is documented that the first object of the [NSScreen screens] array is the screen with the menubar.
+
+It is not documented (but true as far as I can tell) that (0,0) in Cocoa screen coordinates is always
+the BOTTOM-right corner of this screen. Recall that Cocoa uses cartesian coordinates so y-increase is up.
+
+It isn't clearly documented but visibleFrame returns a rectangle in screen coordinates, not a rectangle
+relative to that screen's frame. The only real way to test this is to configure two screens one atop
+the other such that the menubar screen is on top. The Dock at the bottom of the screen will then
+eat into the visibleFrame of screen 1 by incrementing it's y-origin. Thus if you arrange two
+1920x1200 screens top/bottom then screen 1 (the bottom screen) will have frame origin (0,-1200) and
+visibleFrame origin (0,-1149) which is exactly 51 pixels higher than the full frame origin.
+
+In wxCocoa, we somewhat arbitrarily declare that wx (0,0) is the TOP-left of screen 0's frame (the entire screen).
+However, this isn't entirely arbitrary because the Quartz Display Services (CGDisplay) uses this same scheme.
+This works out nicely because wxCocoa's wxDisplay is implemented using Quartz Display Services instead of NSScreen.
+*/
+
+namespace { // file namespace
+
+class wxCocoaPrivateScreenCoordinateTransformer
+{
+ DECLARE_NO_COPY_CLASS(wxCocoaPrivateScreenCoordinateTransformer)
+public:
+ wxCocoaPrivateScreenCoordinateTransformer();
+ ~wxCocoaPrivateScreenCoordinateTransformer();
+ wxPoint OriginInWxDisplayCoordinatesForRectInCocoaScreenCoordinates(NSRect windowFrame);
+ NSPoint OriginInCocoaScreenCoordinatesForRectInWxDisplayCoordinates(wxCoord x, wxCoord y, wxCoord width, wxCoord height, bool keepOriginVisible);
+
+protected:
+ NSScreen *m_screenZero;
+ NSRect m_screenZeroFrame;
+};
+
+// NOTE: This is intended to be a short-lived object. A future enhancment might
+// make it a global and reconfigure it upon some notification that the screen layout
+// has changed.
+inline wxCocoaPrivateScreenCoordinateTransformer::wxCocoaPrivateScreenCoordinateTransformer()
+{
+ NSArray *screens = [NSScreen screens];
+
+ [screens retain];
+
+ m_screenZero = nil;
+ if(screens != nil && [screens count] > 0)
+ m_screenZero = [[screens objectAtIndex:0] retain];
+
+ [screens release];
+
+ if(m_screenZero != nil)
+ m_screenZeroFrame = [m_screenZero frame];
+ else
+ {
+ wxLogWarning(wxT("Can't translate to/from wx screen coordinates and Cocoa screen coordinates"));
+ // Just blindly assume 1024x768 so that at least we can sort of flip things around into
+ // Cocoa coordinates.
+ // NOTE: Theoretically this case should never happen anyway.
+ m_screenZeroFrame = NSMakeRect(0,0,1024,768);
+ }
+}
+
+inline wxCocoaPrivateScreenCoordinateTransformer::~wxCocoaPrivateScreenCoordinateTransformer()
+{
+ [m_screenZero release];
+ m_screenZero = nil;
+}
+
+inline wxPoint wxCocoaPrivateScreenCoordinateTransformer::OriginInWxDisplayCoordinatesForRectInCocoaScreenCoordinates(NSRect windowFrame)
+{
+ // x and y are in wx screen coordinates which we're going to arbitrarily define such that
+ // (0,0) is the TOP-left of screen 0 (the one with the menubar)
+ // NOTE WELL: This means that (0,0) is _NOT_ an appropriate position for a window.
+
+ wxPoint theWxOrigin;
+
+ // Working in Cocoa's screen coordinates we must realize that the x coordinate we want is
+ // the distance between the left side (origin.x) of the window's frame and the left side of
+ // screen zero's frame.
+ theWxOrigin.x = windowFrame.origin.x - m_screenZeroFrame.origin.x;
+
+ // Working in Cocoa's screen coordinates we must realize that the y coordinate we want is
+ // actually the distance between the top-left of the screen zero frame and the top-left
+ // of the window's frame.
+
+ theWxOrigin.y = (m_screenZeroFrame.origin.y + m_screenZeroFrame.size.height) - (windowFrame.origin.y + windowFrame.size.height);
+
+ return theWxOrigin;
+}
+
+inline NSPoint wxCocoaPrivateScreenCoordinateTransformer::OriginInCocoaScreenCoordinatesForRectInWxDisplayCoordinates(wxCoord x, wxCoord y, wxCoord width, wxCoord height, bool keepOriginVisible)
+{
+ NSPoint theCocoaOrigin;
+
+ // The position is in wx screen coordinates which we're going to arbitrarily define such that
+ // (0,0) is the TOP-left of screen 0 (the one with the menubar)
+
+ // NOTE: The usable rectangle is smaller and hence we have the keepOriginVisible flag
+ // which will move the origin downward and/or left as necessary if the origin is
+ // inside the screen0 rectangle (i.e. x/y >= 0 in wx coordinates) and outside the
+ // visible frame (i.e. x/y < the top/left of the screen0 visible frame in wx coordinates)
+ // We don't munge origin coordinates < 0 because it actually is possible that the menubar is on
+ // the top of the bottom screen and thus that origin is completely valid!
+ if(keepOriginVisible && (m_screenZero != nil))
+ {
+ // Do al of this in wx coordinates because it's far simpler since we're dealing with top/left points
+ wxPoint visibleOrigin = OriginInWxDisplayCoordinatesForRectInCocoaScreenCoordinates([m_screenZero visibleFrame]);
+ if(x >= 0 && x < visibleOrigin.x)
+ x = visibleOrigin.x;
+ if(y >= 0 && y < visibleOrigin.y)
+ y = visibleOrigin.y;
+ }
+
+ // The x coordinate is simple as it's just relative to screen zero's frame
+ theCocoaOrigin.x = m_screenZeroFrame.origin.x + x;
+ // Working in Cocoa's coordinates think to start at the bottom of screen zero's frame and add
+ // the height of that rect which gives us the coordinate for the top of the visible rect. Now realize that
+ // the wx coordinates are flipped so if y is say 10 then we want to be 10 pixels down from that and thus
+ // we subtract y. But then we still need to take into account the size of the window which is h and subtract
+ // that to get the bottom-left origin of the rectangle.
+ theCocoaOrigin.y = m_screenZeroFrame.origin.y + m_screenZeroFrame.size.height - y - height;
+
+ return theCocoaOrigin;
+}
+
+} // namespace
+
+wxPoint wxWindowCocoa::OriginInWxDisplayCoordinatesForRectInCocoaScreenCoordinates(NSRect windowFrame)
+{
+ wxCocoaPrivateScreenCoordinateTransformer transformer;
+ return transformer.OriginInWxDisplayCoordinatesForRectInCocoaScreenCoordinates(windowFrame);
+}
+
+NSPoint wxWindowCocoa::OriginInCocoaScreenCoordinatesForRectInWxDisplayCoordinates(wxCoord x, wxCoord y, wxCoord width, wxCoord height, bool keepOriginVisible)
+{
+ wxCocoaPrivateScreenCoordinateTransformer transformer;
+ return transformer.OriginInCocoaScreenCoordinatesForRectInWxDisplayCoordinates(x,y,width,height,keepOriginVisible);
+}
+
// ========================================================================
// wxWindowCocoaHider
// ========================================================================
void wxWindowCocoa::CocoaAddChild(wxWindowCocoa *child)
{
+ // Pool here due to lack of one during wx init phase
+ wxAutoNSAutoreleasePool pool;
+
NSView *childView = child->GetNSViewForSuperview();
wxASSERT(childView);
wxMouseEvent event(wxEVT_ENTER_WINDOW);
InitMouseEvent(event,theEvent);
- wxLogTrace(wxTRACE_COCOA,wxT("wxwin=%p Mouse Entered @%d,%d"),this,event.m_x,event.m_y);
+ wxLogTrace(wxTRACE_COCOA_TrackingRect,wxT("wxwin=%p Mouse Entered TR#%d @%d,%d"),this,[theEvent trackingNumber], event.m_x,event.m_y);
return GetEventHandler()->ProcessEvent(event);
}
else
wxMouseEvent event(wxEVT_LEAVE_WINDOW);
InitMouseEvent(event,theEvent);
- wxLogTrace(wxTRACE_COCOA,wxT("wxwin=%p Mouse Exited @%d,%d"),this,event.m_x,event.m_y);
+ wxLogTrace(wxTRACE_COCOA_TrackingRect,wxT("wxwin=%p Mouse Exited TR#%d @%d,%d"),this,[theEvent trackingNumber],event.m_x,event.m_y);
return GetEventHandler()->ProcessEvent(event);
}
else
bool wxWindowCocoa::Cocoa_resetCursorRects()
{
wxLogTrace(wxTRACE_COCOA,wxT("wxWindow=%p::Cocoa_resetCursorRects"),this);
+
+ // When we are called there may be a queued tracking rect event (mouse entered or exited) and
+ // we won't know it. A specific example is wxGenericHyperlinkCtrl changing the cursor from its
+ // mouse exited event. If the control happens to share the edge with its parent window which is
+ // also tracking mouse events then Cocoa receives two mouse exited events from the window server.
+ // The first one will cause wxGenericHyperlinkCtrl to call wxWindow::SetCursor which will
+ // invaildate the cursor rect causing Cocoa to schedule cursor rect reset with the run loop
+ // which willl in turn call us before exiting for the next user event.
+
+ // If we are the parent window then rebuilding our tracking rectangle will cause us to miss
+ // our mouse exited event because the already queued event will have the old tracking rect
+ // tag. The simple solution is to only rebuild our tracking rect if we need to.
+
if(m_visibleTrackingRectManager != NULL)
- m_visibleTrackingRectManager->RebuildTrackingRect();
+ m_visibleTrackingRectManager->RebuildTrackingRectIfNeeded();
if(!m_cursor.GetNSCursor())
return false;
return true;
}
+bool wxWindowCocoa::SetCursor(const wxCursor &cursor)
+{
+ if(!wxWindowBase::SetCursor(cursor))
+ return false;
+
+ // Set up the cursor rect so that invalidateCursorRectsForView: will destroy it.
+ // If we don't do this then Cocoa thinks (rightly) that we don't have any cursor
+ // rects and thus won't ever call resetCursorRects.
+ [GetNSView() addCursorRect: [GetNSView() visibleRect] cursor: m_cursor.GetNSCursor()];
+
+ // Invalidate the cursor rects so the cursor will change
+ // Note that it is not enough to remove the old one (if any) and add the new one.
+ // For the rects to work properly, Cocoa itself must call resetCursorRects.
+ [[GetNSView() window] invalidateCursorRectsForView:GetNSView()];
+ return true;
+}
+
bool wxWindowCocoa::Cocoa_viewDidMoveToWindow()
{
wxLogTrace(wxTRACE_COCOA,wxT("wxWindow=%p::viewDidMoveToWindow"),this);
void wxWindow::DoScreenToClient(int *x, int *y) const
{
- // TODO
+ // Point in cocoa screen coordinates:
+ NSPoint cocoaScreenPoint = OriginInCocoaScreenCoordinatesForRectInWxDisplayCoordinates(x!=NULL?*x:0, y!=NULL?*y:0, 0, 0, false);
+ NSView *clientView = const_cast<wxWindow*>(this)->GetNSView();
+ NSWindow *theWindow = [clientView window];
+
+ // Point in window's base coordinate system:
+ NSPoint windowPoint = [theWindow convertScreenToBase:cocoaScreenPoint];
+ // Point in view's bounds coordinate system
+ NSPoint boundsPoint = [clientView convertPoint:windowPoint fromView:nil];
+ // Point in wx client coordinates:
+ NSPoint theWxClientPoint = CocoaTransformNSViewBoundsToWx(clientView, boundsPoint);
+ if(x!=NULL)
+ *x = theWxClientPoint.x;
+ if(y!=NULL)
+ *y = theWxClientPoint.y;
}
void wxWindow::DoClientToScreen(int *x, int *y) const
{
- // TODO
+ // Point in wx client coordinates
+ NSPoint theWxClientPoint = NSMakePoint(x!=NULL?*x:0, y!=NULL?*y:0);
+
+ NSView *clientView = const_cast<wxWindow*>(this)->GetNSView();
+
+ // Point in the view's bounds coordinate system
+ NSPoint boundsPoint = CocoaTransformNSViewWxToBounds(clientView, theWxClientPoint);
+
+ // Point in the window's base coordinate system
+ NSPoint windowPoint = [clientView convertPoint:boundsPoint toView:nil];
+
+ NSWindow *theWindow = [clientView window];
+ // Point in Cocoa's screen coordinates
+ NSPoint screenPoint = [theWindow convertBaseToScreen:windowPoint];
+
+ // Act as though this was the origin of a 0x0 rectangle
+ NSRect screenPointRect = NSMakeRect(screenPoint.x, screenPoint.y, 0, 0);
+
+ // Convert that rectangle to wx coordinates
+ wxPoint theWxScreenPoint = OriginInWxDisplayCoordinatesForRectInCocoaScreenCoordinates(screenPointRect);
+ if(*x)
+ *x = theWxScreenPoint.x;
+ if(*y)
+ *y = theWxScreenPoint.y;
}
// Get size *available for subwindows* i.e. excluding menu bar etc.
int wxWindow::GetCharHeight() const
{
// TODO
- return 0;
+ return 10;
}
int wxWindow::GetCharWidth() const
{
// TODO
- return 0;
+ return 5;
}
void wxWindow::GetTextExtent(const wxString& string, int *x, int *y,
bool wxWindow::SetFont(const wxFont& font)
{
- // TODO
- return true;
+ // FIXME: We may need to handle wx font inheritance.
+ return wxWindowBase::SetFont(font);
}
-static CocoaWindowCompareFunctionResult CocoaRaiseWindowCompareFunction(id first, id second, void *target)
+#if 0 // these are used when debugging the algorithm.
+static char const * const comparisonresultStrings[] =
+{ "<"
+, "=="
+, ">"
+};
+#endif
+
+class CocoaWindowCompareContext
+{
+ DECLARE_NO_COPY_CLASS(CocoaWindowCompareContext)
+public:
+ CocoaWindowCompareContext(); // Not implemented
+ CocoaWindowCompareContext(NSView *target, NSArray *subviews)
+ {
+ m_target = target;
+ // Cocoa sorts subviews in-place.. make a copy
+ m_subviews = [subviews copy];
+ }
+ ~CocoaWindowCompareContext()
+ { // release the copy
+ [m_subviews release];
+ }
+ NSView* target()
+ { return m_target; }
+ NSArray* subviews()
+ { return m_subviews; }
+ /* Helper function that returns the comparison based off of the original ordering */
+ CocoaWindowCompareFunctionResult CompareUsingOriginalOrdering(id first, id second)
+ {
+ NSUInteger firstI = [m_subviews indexOfObjectIdenticalTo:first];
+ NSUInteger secondI = [m_subviews indexOfObjectIdenticalTo:second];
+ // NOTE: If either firstI or secondI is NSNotFound then it will be NSIntegerMax and thus will
+ // likely compare higher than the other view which is reasonable considering the only way that
+ // can happen is if the subview was added after our call to subviews but before the call to
+ // sortSubviewsUsingFunction:context:. Thus we don't bother checking. Particularly because
+ // that case should never occur anyway because that would imply a multi-threaded GUI call
+ // which is a big no-no with Cocoa.
+
+ // Subviews are ordered from back to front meaning one that is already lower will have an lower index.
+ NSComparisonResult result = (firstI < secondI)
+ ? NSOrderedAscending /* -1 */
+ : (firstI > secondI)
+ ? NSOrderedDescending /* 1 */
+ : NSOrderedSame /* 0 */;
+
+#if 0 // Enable this if you need to debug the algorithm.
+ NSLog(@"%@ [%d] %s %@ [%d]\n", first, firstI, comparisonresultStrings[result+1], second, secondI);
+#endif
+ return result;
+ }
+private:
+ /* The subview we are trying to Raise or Lower */
+ NSView *m_target;
+ /* A copy of the original array of subviews */
+ NSArray *m_subviews;
+};
+
+/* Causes Cocoa to raise the target view to the top of the Z-Order by telling the sort function that
+ * the target view is always higher than every other view. When comparing two views neither of
+ * which is the target, it returns the correct response based on the original ordering
+ */
+static CocoaWindowCompareFunctionResult CocoaRaiseWindowCompareFunction(id first, id second, void *ctx)
{
+ CocoaWindowCompareContext *compareContext = (CocoaWindowCompareContext*)ctx;
// first should be ordered higher
- if(first==target)
+ if(first==compareContext->target())
return NSOrderedDescending;
// second should be ordered higher
- if(second==target)
+ if(second==compareContext->target())
return NSOrderedAscending;
- return NSOrderedSame;
+ return compareContext->CompareUsingOriginalOrdering(first,second);
}
// Raise the window to the top of the Z order
{
// wxAutoNSAutoreleasePool pool;
NSView *nsview = GetNSViewForSuperview();
- [[nsview superview] sortSubviewsUsingFunction:
+ NSView *superview = [nsview superview];
+ CocoaWindowCompareContext compareContext(nsview, [superview subviews]);
+
+ [superview sortSubviewsUsingFunction:
CocoaRaiseWindowCompareFunction
- context: nsview];
+ context: &compareContext];
}
-static CocoaWindowCompareFunctionResult CocoaLowerWindowCompareFunction(id first, id second, void *target)
+/* Causes Cocoa to lower the target view to the bottom of the Z-Order by telling the sort function that
+ * the target view is always lower than every other view. When comparing two views neither of
+ * which is the target, it returns the correct response based on the original ordering
+ */
+static CocoaWindowCompareFunctionResult CocoaLowerWindowCompareFunction(id first, id second, void *ctx)
{
+ CocoaWindowCompareContext *compareContext = (CocoaWindowCompareContext*)ctx;
// first should be ordered lower
- if(first==target)
+ if(first==compareContext->target())
return NSOrderedAscending;
// second should be ordered lower
- if(second==target)
+ if(second==compareContext->target())
return NSOrderedDescending;
- return NSOrderedSame;
+ return compareContext->CompareUsingOriginalOrdering(first,second);
}
// Lower the window to the bottom of the Z order
void wxWindow::Lower()
{
NSView *nsview = GetNSViewForSuperview();
- [[nsview superview] sortSubviewsUsingFunction:
+ NSView *superview = [nsview superview];
+ CocoaWindowCompareContext compareContext(nsview, [superview subviews]);
+
+#if 0
+ NSLog(@"Target:\n%@\n", nsview);
+ NSLog(@"Before:\n%@\n", compareContext.subviews());
+#endif
+ [superview sortSubviewsUsingFunction:
CocoaLowerWindowCompareFunction
- context: nsview];
+ context: &compareContext];
+#if 0
+ NSLog(@"After:\n%@\n", [superview subviews]);
+#endif
}
bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
return NULL;
}
+// ========================================================================
+// wxCocoaMouseMovedEventSynthesizer
+// ========================================================================
+
+#define wxTRACE_COCOA_MouseMovedSynthesizer wxT("COCOA_MouseMovedSynthesizer")
+
+/* This class registers one run loop observer to cover all windows registered with it.
+ * It will register the observer when the first view is registerd and unregister the
+ * observer when the last view is unregistered.
+ * It is instantiated as a static s_mouseMovedSynthesizer in this file although there
+ * is no reason it couldn't be instantiated multiple times.
+ */
+class wxCocoaMouseMovedEventSynthesizer
+{
+ DECLARE_NO_COPY_CLASS(wxCocoaMouseMovedEventSynthesizer)
+public:
+ wxCocoaMouseMovedEventSynthesizer()
+ { m_lastScreenMouseLocation = NSZeroPoint;
+ }
+ ~wxCocoaMouseMovedEventSynthesizer();
+ void RegisterWxCocoaView(wxCocoaNSView *aView);
+ void UnregisterWxCocoaView(wxCocoaNSView *aView);
+ void SynthesizeMouseMovedEvent();
+
+protected:
+ void AddRunLoopObserver();
+ void RemoveRunLoopObserver();
+ wxCFRef<CFRunLoopObserverRef> m_runLoopObserver;
+ std::list<wxCocoaNSView*> m_registeredViews;
+ NSPoint m_lastScreenMouseLocation;
+ static void SynthesizeMouseMovedEvent(CFRunLoopObserverRef observer, CFRunLoopActivity activity, void *info);
+};
+
+void wxCocoaMouseMovedEventSynthesizer::RegisterWxCocoaView(wxCocoaNSView *aView)
+{
+ m_registeredViews.push_back(aView);
+ wxLogTrace(wxTRACE_COCOA_MouseMovedSynthesizer, wxT("Registered wxCocoaNSView=%p"), aView);
+
+ if(!m_registeredViews.empty() && m_runLoopObserver == NULL)
+ {
+ AddRunLoopObserver();
+ }
+}
+
+void wxCocoaMouseMovedEventSynthesizer::UnregisterWxCocoaView(wxCocoaNSView *aView)
+{
+ m_registeredViews.remove(aView);
+ wxLogTrace(wxTRACE_COCOA_MouseMovedSynthesizer, wxT("Unregistered wxCocoaNSView=%p"), aView);
+ if(m_registeredViews.empty() && m_runLoopObserver != NULL)
+ {
+ RemoveRunLoopObserver();
+ }
+}
+
+wxCocoaMouseMovedEventSynthesizer::~wxCocoaMouseMovedEventSynthesizer()
+{
+ if(!m_registeredViews.empty())
+ {
+ // This means failure to clean up so we report on it as a debug message.
+ wxLogDebug(wxT("There are still %d wxCocoaNSView registered to receive mouse moved events at static destruction time"), m_registeredViews.size());
+ m_registeredViews.clear();
+ }
+ if(m_runLoopObserver != NULL)
+ {
+ // This should not occur unless m_registeredViews was not empty since the last object unregistered should have done this.
+ wxLogDebug(wxT("Removing run loop observer during static destruction time."));
+ RemoveRunLoopObserver();
+ }
+}
+
+void wxCocoaMouseMovedEventSynthesizer::SynthesizeMouseMovedEvent(CFRunLoopObserverRef observer, CFRunLoopActivity activity, void *info)
+{
+ reinterpret_cast<wxCocoaMouseMovedEventSynthesizer*>(info)->SynthesizeMouseMovedEvent();
+}
+
+void wxCocoaMouseMovedEventSynthesizer::AddRunLoopObserver()
+{
+ CFRunLoopObserverContext observerContext =
+ { 0
+ , this
+ , NULL
+ , NULL
+ , NULL
+ };
+
+ // The kCFRunLoopExit observation point is used such that we hook the run loop after it has already decided that
+ // it is going to exit which is generally for the purpose of letting the event loop process the next Cocoa event.
+
+ // Executing our procedure within the run loop (e.g. kCFRunLoopBeforeWaiting which was used before) results
+ // in our observer procedure being called before the run loop has decided that it is going to return control to
+ // the Cocoa event loop. One major problem is uncovered by the wxGenericHyperlinkCtrl (consider this to be "user
+ // code") which changes the window's cursor and thus causes the cursor rectangle's to be invalidated.
+
+ // Cocoa implements this invalidation using a delayed notification scheme whereby the resetCursorRects method
+ // won't be called until the CFRunLoop gets around to it. If the CFRunLoop has not yet exited then it will get
+ // around to it before letting the event loop do its work. This has some very odd effects on the way the
+ // newly created tracking rects function. In particular, we will often miss the mouseExited: message if the
+ // user flicks the mouse quickly enough such that the mouse is already outside of the tracking rect by the
+ // time the new one is built.
+
+ // Observing from the kCFRunLoopExit point gives Cocoa's event loop an opportunity to chew some events before it cedes
+ // control back to the CFRunLoop, thus causing the delayed notifications to fire at an appropriate time and
+ // the mouseExited: message to be sent properly.
+
+ m_runLoopObserver.reset(CFRunLoopObserverCreate(kCFAllocatorDefault, kCFRunLoopExit, TRUE, 0, SynthesizeMouseMovedEvent, &observerContext));
+ CFRunLoopAddObserver([[NSRunLoop currentRunLoop] getCFRunLoop], m_runLoopObserver, kCFRunLoopCommonModes);
+ wxLogTrace(wxTRACE_COCOA_TrackingRect, wxT("Added tracking rect run loop observer"));
+}
+
+void wxCocoaMouseMovedEventSynthesizer::RemoveRunLoopObserver()
+{
+ CFRunLoopRemoveObserver([[NSRunLoop currentRunLoop] getCFRunLoop], m_runLoopObserver, kCFRunLoopCommonModes);
+ m_runLoopObserver.reset();
+ wxLogTrace(wxTRACE_COCOA_TrackingRect, wxT("Removed tracking rect run loop observer"));
+}
+
+void wxCocoaMouseMovedEventSynthesizer::SynthesizeMouseMovedEvent()
+{
+ NSPoint screenMouseLocation = [NSEvent mouseLocation];
+ // Checking the last mouse location is done for a few reasons:
+ // 1. We are observing every iteration of the event loop so we'd be sending out a lot of extraneous events
+ // telling the app the mouse moved when the user hit a key for instance.
+ // 2. When handling the mouse moved event, user code can do something to the view which will cause Cocoa to
+ // call resetCursorRects. Cocoa does this by using a delayed notification which means the event loop gets
+ // pumped once which would mean that if we didn't check the mouse location we'd get into a never-ending
+ // loop causing the tracking rectangles to constantly be reset.
+ if(screenMouseLocation.x != m_lastScreenMouseLocation.x || screenMouseLocation.y != m_lastScreenMouseLocation.y)
+ {
+ m_lastScreenMouseLocation = screenMouseLocation;
+ wxLogTrace(wxTRACE_COCOA_TrackingRect, wxT("Synthesizing mouse moved at screen (%f,%f)"), screenMouseLocation.x, screenMouseLocation.y);
+ for(std::list<wxCocoaNSView*>::iterator i = m_registeredViews.begin(); i != m_registeredViews.end(); ++i)
+ {
+ (*i)->Cocoa_synthesizeMouseMoved();
+ }
+ }
+}
+
+// Singleton used for all views:
+static wxCocoaMouseMovedEventSynthesizer s_mouseMovedSynthesizer;
// ========================================================================
// wxCocoaTrackingRectManager
: m_window(window)
{
m_isTrackingRectActive = false;
- m_runLoopObserver = NULL;
BuildTrackingRect();
}
{
[m_window->GetNSView() removeTrackingRect:m_trackingRectTag];
m_isTrackingRectActive = false;
+ wxLogTrace(wxTRACE_COCOA_TrackingRect, wxT("%s@%p: Removed tracking rect #%d"), m_window->GetClassInfo()->GetClassName(), m_window, m_trackingRectTag);
}
// If we were doing periodic events we need to clear those too
StopSynthesizingEvents();
void wxCocoaTrackingRectManager::StopSynthesizingEvents()
{
- if(m_runLoopObserver != NULL)
- {
- CFRunLoopRemoveObserver([[NSRunLoop currentRunLoop] getCFRunLoop], m_runLoopObserver, kCFRunLoopCommonModes);
- CFRelease(m_runLoopObserver);
- m_runLoopObserver = NULL;
- }
+ s_mouseMovedSynthesizer.UnregisterWxCocoaView(m_window);
}
void wxCocoaTrackingRectManager::BuildTrackingRect()
{
+ // Pool here due to lack of one during wx init phase
+ wxAutoNSAutoreleasePool pool;
+
wxASSERT_MSG(!m_isTrackingRectActive, wxT("Tracking rect was not cleared"));
- if([m_window->GetNSView() window] != nil)
+
+ NSView *theView = m_window->GetNSView();
+
+ if([theView window] != nil)
{
- m_trackingRectTag = [m_window->GetNSView() addTrackingRect:[m_window->GetNSView() visibleRect] owner:m_window->GetNSView() userData:NULL assumeInside:NO];
+ NSRect visibleRect = [theView visibleRect];
+
+ m_trackingRectTag = [theView addTrackingRect:visibleRect owner:theView userData:NULL assumeInside:NO];
+ m_trackingRectInWindowCoordinates = [theView convertRect:visibleRect toView:nil];
m_isTrackingRectActive = true;
+
+ wxLogTrace(wxTRACE_COCOA_TrackingRect, wxT("%s@%p: Added tracking rect #%d"), m_window->GetClassInfo()->GetClassName(), m_window, m_trackingRectTag);
}
}
-static NSPoint s_lastScreenMouseLocation = NSZeroPoint;
-
-static void SynthesizeMouseMovedEvent(CFRunLoopObserverRef observer, CFRunLoopActivity activity, void *info)
+void wxCocoaTrackingRectManager::BeginSynthesizingEvents()
{
- NSPoint screenMouseLocation = [NSEvent mouseLocation];
- if(screenMouseLocation.x != s_lastScreenMouseLocation.x || screenMouseLocation.y != s_lastScreenMouseLocation.y)
- {
- wxCocoaNSView *win = reinterpret_cast<wxCocoaNSView*>(info);
- win->Cocoa_synthesizeMouseMoved();
- }
+ s_mouseMovedSynthesizer.RegisterWxCocoaView(m_window);
}
-void wxCocoaTrackingRectManager::BeginSynthesizingEvents()
+void wxCocoaTrackingRectManager::RebuildTrackingRectIfNeeded()
{
- CFRunLoopObserverContext observerContext =
- { 0
- , static_cast<wxCocoaNSView*>(m_window)
- , NULL
- , NULL
- , NULL
- };
- m_runLoopObserver = CFRunLoopObserverCreate(kCFAllocatorDefault, kCFRunLoopBeforeWaiting, TRUE, 0, SynthesizeMouseMovedEvent, &observerContext);
- CFRunLoopAddObserver([[NSRunLoop currentRunLoop] getCFRunLoop], m_runLoopObserver, kCFRunLoopCommonModes);
+ if(m_isTrackingRectActive)
+ {
+ NSView *theView = m_window->GetNSView();
+ NSRect currentRect = [theView convertRect:[theView visibleRect] toView:nil];
+ if(NSEqualRects(m_trackingRectInWindowCoordinates,currentRect))
+ {
+ wxLogTrace(wxTRACE_COCOA_TrackingRect, wxT("Ignored request to rebuild TR#%d"), m_trackingRectTag);
+ return;
+ }
+ }
+ RebuildTrackingRect();
}
void wxCocoaTrackingRectManager::RebuildTrackingRect()
projects / wxWidgets.git / blobdiff