Return NULL from wxWindow::GetCapture() when the capture is being lost.

[wxWidgets.git] / src / cocoa / NSSlider.mm

diff --git a/src/cocoa/NSSlider.mm b/src/cocoa/NSSlider.mm
index b281f9bfac9ec2cb215ff6786f39bcef92221211..5ff6ac1bc6414a9cf00b360f7ccc6c4331d1daab 100644 (file)
--- a/src/cocoa/NSSlider.mm
+++ b/src/cocoa/NSSlider.mm
@@ -2,11 +2,10 @@
 // Name:        src/cocoa/NSSlider.mm
 // Purpose:     wxCocoaNSSlider class
 // Author:      Mark Oxenham
 // Name:        src/cocoa/NSSlider.mm
 // Purpose:     wxCocoaNSSlider class
 // Author:      Mark Oxenham

-// Modified by:
+// Modified by: David Elliott

 // Created:     2007/08/10
 // Created:     2007/08/10

-// RCS-ID:      $Id: $

 // Copyright:   (c) 2007 Software 2000 Ltd. All rights reserved.
 // Copyright:   (c) 2007 Software 2000 Ltd. All rights reserved.

-// Licence:     wxWidgets licence
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 #include "wx/wxprec.h"
 /////////////////////////////////////////////////////////////////////////////
 
 #include "wx/wxprec.h"


@@ -15,304 +14,148 @@
     #include "wx/log.h"
 #endif // WX_PRECOMP
 
     #include "wx/log.h"
 #endif // WX_PRECOMP
 

-#include "wx/cocoa/ObjcPose.h"

 #include "wx/cocoa/NSSlider.h"
 
 #import <Foundation/NSNotification.h>
 #import <Foundation/NSString.h>
 #import <AppKit/NSEvent.h>
 #include "wx/cocoa/NSSlider.h"
 
 #import <Foundation/NSNotification.h>
 #import <Foundation/NSString.h>
 #import <AppKit/NSEvent.h>

-#import <AppKit/NSSlider.h>
+#include "wx/cocoa/objc/NSSlider.h"

 
 WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(NSSlider)
 
 
 WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(NSSlider)
 

-// ============================================================================
-// @class wxNSSliderTarget
-// ============================================================================
-@interface wxNSSliderTarget : NSObject
-{
-}
-
-- (void)wxNSSliderUpArrowKeyDown: (id)sender;
-- (void)wxNSSliderDownArrowKeyDown: (id)sender;
-- (void)wxNSSliderLeftArrowKeyDown: (id)sender;
-- (void)wxNSSliderRightArrowKeyDown: (id)sender;
-- (void)wxNSSliderPageUpKeyDown: (id)sender;
-- (void)wxNSSliderPageDownKeyDown: (id)sender;
-- (void)wxNSSliderMoveUp: (id)sender;
-- (void)wxNSSliderMoveDown: (id)sender;
-- (void)wxNSSliderMoveLeft: (id)sender;
-- (void)wxNSSliderMoveRight: (id)sender;
-- (void)wxNSSliderPageUp: (id)sender;
-- (void)wxNSSliderPageDown: (id)sender;
-@end // wxNSSliderTarget
-
-@implementation wxNSSliderTarget : NSObject
-
-- (void)wxNSSliderUpArrowKeyDown: (id)sender
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderUpArrowKeyDown received without associated wx object"));
-    slider->Cocoa_wxNSSliderUpArrowKeyDown();
-}
-
-- (void)wxNSSliderDownArrowKeyDown: (id)sender
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderDownArrowKeyDown received without associated wx object"));
-    slider->Cocoa_wxNSSliderDownArrowKeyDown();
-}
-
-- (void)wxNSSliderLeftArrowKeyDown: (id)sender
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderLeftArrowKeyDown received without associated wx object"));
-    slider->Cocoa_wxNSSliderLeftArrowKeyDown();
-}
-
-- (void)wxNSSliderRightArrowKeyDown: (id)sender
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderRightArrowKeyDown received without associated wx object"));
-    slider->Cocoa_wxNSSliderRightArrowKeyDown();
-}
-
-- (void)wxNSSliderPageUpKeyDown: (id)sender
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderPageUpKeyDown received without associated wx object"));
-    slider->Cocoa_wxNSSliderPageUpKeyDown();
-}
-
-- (void)wxNSSliderPageDownKeyDown: (id)sender
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderPageDownKeyDown received without associated wx object"));
-    slider->Cocoa_wxNSSliderPageDownKeyDown();
-}
-
-- (void)wxNSSliderMoveUp: (id)sender
+class wxCocoaNSSliderLastSelectorChanger

 {
 {

-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderMoveUp received without associated wx object"));
-    slider->Cocoa_wxNSSliderMoveUp();
-}
-
-- (void)wxNSSliderMoveDown: (id)sender
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderMoveDown received without associated wx object"));
-    slider->Cocoa_wxNSSliderMoveDown();
-}
-
-- (void)wxNSSliderMoveLeft: (id)sender
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderMoveLeft received without associated wx object"));
-    slider->Cocoa_wxNSSliderMoveLeft();
-}
+public:
+    wxCocoaNSSliderLastSelectorChanger(SEL newSelector)
+    {
+        m_savedResponderSelector = wxCocoaNSSlider::sm_lastResponderSelector;
+        wxCocoaNSSlider::sm_lastResponderSelector = newSelector;
+    }
+    ~wxCocoaNSSliderLastSelectorChanger()
+    {
+        wxCocoaNSSlider::sm_lastResponderSelector = m_savedResponderSelector;
+    }
+private:
+    SEL m_savedResponderSelector;
+// Don't allow any default or copy construction
+    wxCocoaNSSliderLastSelectorChanger();
+    wxCocoaNSSliderLastSelectorChanger(const wxCocoaNSSliderLastSelectorChanger&);
+    void operator=(const wxCocoaNSSliderLastSelectorChanger&);
+};

 
 

-- (void)wxNSSliderMoveRight: (id)sender
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderMoveRight received without associated wx object"));
-    slider->Cocoa_wxNSSliderMoveRight();
-}
+// ============================================================================
+// @class WXNSSlider
+// ============================================================================

 
 

-- (void)wxNSSliderPageUp: (id)sender
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderPageUp received without associated wx object"));
-    slider->Cocoa_wxNSSliderPageUp();
-}
+@implementation WXNSSlider : NSSlider

 
 

-- (void)wxNSSliderPageDown: (id)sender
+// Override to ensure that WXNSSlider gets created with a WXNSSliderCell
++ (Class)cellClass

 {
 {

-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(sender);
-    wxCHECK_RET(slider,wxT("wxNSSliderPageDown received without associated wx object"));
-    slider->Cocoa_wxNSSliderPageDown();
+    return [WX_GET_OBJC_CLASS(WXNSSliderCell) class];

 }
 
 }
 

-@end // implementation wxNSSliderTarget
-
-// ============================================================================
-// @class wxPoserNSSlider
-// ============================================================================
-
-@interface wxPoserNSSlider : NSSlider
-@end
-
-WX_IMPLEMENT_POSER(wxPoserNSSlider);
-@implementation wxPoserNSSlider : NSSlider
+// The following methods are all NSResponder methods which NSSlider responds
+// to in order to change its state and send the action message.  We override
+// them simply to record which one was called.  This allows code listening
+// only for the action message to determine what caused the action.
+// Note that this is perfectly fine being a global because Cocoa processes
+// events synchronously and only in the main thread.

 
 - (void)keyDown:(NSEvent *)theEvent
 {
 
 - (void)keyDown:(NSEvent *)theEvent
 {

-    SEL originalAction = [self action];
-    SEL newAction = originalAction;
-    NSString *theEventCharacters = [theEvent charactersIgnoringModifiers];
-
-    if ([theEventCharacters length] == 1)
-    {
-        switch ([theEventCharacters characterAtIndex:0])
-        {
-            case NSUpArrowFunctionKey:      newAction = @selector(wxNSSliderUpArrowKeyDown:);       break;
-            case NSDownArrowFunctionKey:    newAction = @selector(wxNSSliderDownArrowKeyDown:);     break;
-            case NSLeftArrowFunctionKey:    newAction = @selector(wxNSSliderLeftArrowKeyDown:);     break;
-            case NSRightArrowFunctionKey:   newAction = @selector(wxNSSliderRightArrowKeyDown:);    break;
-            case NSPageUpFunctionKey:       newAction = @selector(wxNSSliderPageUpKeyDown:);        break;
-            case NSPageDownFunctionKey:     newAction = @selector(wxNSSliderPageDownKeyDown:);      break;
-            default:                                                                                break;
-        }
-    }
-
-    [self setAction:newAction];
+    wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);

     [super keyDown:theEvent];
     [super keyDown:theEvent];

-    [self setAction:originalAction];

 }
 
 - (void)moveUp:(id)sender
 {
 }
 
 - (void)moveUp:(id)sender
 {

-    SEL originalAction = [self action];
-
-    [self setAction:@selector(wxNSSliderMoveUp:)];
+    wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);

     [super moveUp:sender];
     [super moveUp:sender];

-    [self setAction:originalAction];

 }
 
 - (void)moveDown:(id)sender
 {
 }
 
 - (void)moveDown:(id)sender
 {

-    SEL originalAction = [self action];
-
-    [self setAction:@selector(wxNSSliderMoveDown:)];
+    wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);

     [super moveDown:sender];
     [super moveDown:sender];

-    [self setAction:originalAction];

 }
 
 - (void)moveLeft:(id)sender
 {
 }
 
 - (void)moveLeft:(id)sender
 {

-    SEL originalAction = [self action];
-
-    [self setAction:@selector(wxNSSliderMoveLeft:)];
+    wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);

     [super moveLeft:sender];
     [super moveLeft:sender];

-    [self setAction:originalAction];

 }
 
 - (void)moveRight:(id)sender
 {
 }
 
 - (void)moveRight:(id)sender
 {

-    SEL originalAction = [self action];
-
-    [self setAction:@selector(wxNSSliderMoveRight:)];
+    wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);

     [super moveRight:sender];
     [super moveRight:sender];

-    [self setAction:originalAction];

 }
 
 - (void)pageUp:(id)sender
 {
 }
 
 - (void)pageUp:(id)sender
 {

-    SEL originalAction = [self action];
-
-    [self setAction:@selector(wxNSSliderPageUp:)];
+    wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);

     [super pageUp:sender];
     [super pageUp:sender];

-    [self setAction:originalAction];

 }
 
 - (void)pageDown:(id)sender
 {
 }
 
 - (void)pageDown:(id)sender
 {

-    SEL originalAction = [self action];
-
-    [self setAction:@selector(wxNSSliderPageDown:)];
+    wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);

     [super pageDown:sender];
     [super pageDown:sender];

-    [self setAction:originalAction];

 }
 
 @end
 }
 
 @end

+WX_IMPLEMENT_GET_OBJC_CLASS(WXNSSlider,NSSlider)

 
 // ============================================================================
 
 // ============================================================================

-// @class wxPoserNSSliderCell
+// @class WXNSSliderCell

 // ============================================================================
 
 // ============================================================================
 

-#define kwxNSSliderStartTracking    @"wxNSSliderStartTracking"
-#define kwxNSSliderContinueTracking @"wxNSSliderContinueTracking"
-#define kwxNSSliderStopTracking     @"wxNSSliderStopTracking"
-
-@interface wxPoserNSSliderCell : NSSliderCell
-@end
-
-WX_IMPLEMENT_POSER(wxPoserNSSliderCell);
-@implementation wxPoserNSSliderCell : NSSliderCell
+@implementation WXNSSliderCell : NSSliderCell

 - (BOOL)startTrackingAt:(NSPoint)startPoint inView:(NSView *)controlView
 {
     BOOL result = [super startTrackingAt:startPoint inView:controlView];
 - (BOOL)startTrackingAt:(NSPoint)startPoint inView:(NSView *)controlView
 {
     BOOL result = [super startTrackingAt:startPoint inView:controlView];

-    [[NSNotificationCenter defaultCenter] postNotificationName:kwxNSSliderStartTracking object:controlView];
+
+    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(controlView);
+    if(slider)
+        slider->CocoaNotification_startTracking(NULL);
+

     return result;
 }
 
 - (BOOL)continueTracking:(NSPoint)lastPoint at:(NSPoint)currentPoint inView:(NSView *)controlView
 {
     BOOL result = [super continueTracking:lastPoint at:currentPoint inView:controlView];
     return result;
 }
 
 - (BOOL)continueTracking:(NSPoint)lastPoint at:(NSPoint)currentPoint inView:(NSView *)controlView
 {
     BOOL result = [super continueTracking:lastPoint at:currentPoint inView:controlView];

-    [[NSNotificationCenter defaultCenter] postNotificationName:kwxNSSliderContinueTracking object:controlView];
+
+    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(controlView);
+    if(slider)
+        slider->CocoaNotification_continueTracking(NULL);
+

     return result;
 }
 
 - (void)stopTracking:(NSPoint)lastPoint at:(NSPoint)stopPoint inView:(NSView *)controlView mouseIsUp:(BOOL)flag
 {
     [super stopTracking:lastPoint at:stopPoint inView:controlView mouseIsUp:flag];
     return result;
 }
 
 - (void)stopTracking:(NSPoint)lastPoint at:(NSPoint)stopPoint inView:(NSView *)controlView mouseIsUp:(BOOL)flag
 {
     [super stopTracking:lastPoint at:stopPoint inView:controlView mouseIsUp:flag];

-    [[NSNotificationCenter defaultCenter] postNotificationName:kwxNSSliderStopTracking object:controlView];
-}
-@end

 
 

-// ============================================================================
-// @class wxNSSliderNotificationObserver
-// ============================================================================
-@interface wxNSSliderNotificationObserver : NSObject
-{
+    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(controlView);
+    if(slider)
+        slider->CocoaNotification_stopTracking(NULL);

 }
 }

-
-struct objc_object *wxCocoaNSSlider::sm_cocoaObserver = [[wxNSSliderNotificationObserver alloc] init];
-
-- (void)startTracking: (NSNotification *)notification;
-- (void)continueTracking: (NSNotification *)notification;
-- (void)stopTracking: (NSNotification *)notification;
-@end // interface wxNSSliderNotificationObserver
-
-@implementation wxNSSliderNotificationObserver : NSObject
-
-- (void)startTracking: (NSNotification *)notification;
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa([notification object]);
-    wxCHECK_RET(slider,wxT("startTracking received but no wxSlider exists"));
-    slider->CocoaNotification_startTracking(notification);
-}
-
-- (void)continueTracking: (NSNotification *)notification;
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa([notification object]);
-    wxCHECK_RET(slider,wxT("continueTracking received but no wxSlider exists"));
-    slider->CocoaNotification_continueTracking(notification);
-}
-
-- (void)stopTracking: (NSNotification *)notification;
-{
-    wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa([notification object]);
-    wxCHECK_RET(slider,wxT("stopTracking received but no wxSlider exists"));
-    slider->CocoaNotification_stopTracking(notification);
-}
-
-@end // implementation wxNSSliderNotificationObserver
+@end
+WX_IMPLEMENT_GET_OBJC_CLASS(WXNSSliderCell,NSSliderCell)

 
 // ============================================================================
 // class wxCocoaNSSlider
 // ============================================================================
 
 // ============================================================================
 // class wxCocoaNSSlider
 // ============================================================================

-const wxObjcAutoRefFromAlloc<struct objc_object*> wxCocoaNSSlider::sm_cocoaTarget = [[wxNSSliderTarget alloc] init];

 
 

+SEL wxCocoaNSSlider::sm_lastResponderSelector;

 
 void wxCocoaNSSlider::AssociateNSSlider(WX_NSSlider cocoaNSSlider)
 {
     if(cocoaNSSlider)
     {
         sm_cocoaHash.insert(wxCocoaNSSliderHash::value_type(cocoaNSSlider,this));
 
 void wxCocoaNSSlider::AssociateNSSlider(WX_NSSlider cocoaNSSlider)
 {
     if(cocoaNSSlider)
     {
         sm_cocoaHash.insert(wxCocoaNSSliderHash::value_type(cocoaNSSlider,this));

-        [[NSNotificationCenter defaultCenter] addObserver:(id)sm_cocoaObserver selector:@selector(startTracking:) name:kwxNSSliderStartTracking object:cocoaNSSlider];
-        [[NSNotificationCenter defaultCenter] addObserver:(id)sm_cocoaObserver selector:@selector(continueTracking:) name:kwxNSSliderContinueTracking object:cocoaNSSlider];
-        [[NSNotificationCenter defaultCenter] addObserver:(id)sm_cocoaObserver selector:@selector(stopTracking:) name:kwxNSSliderStopTracking object:cocoaNSSlider];
-        [cocoaNSSlider setTarget:sm_cocoaTarget];

     }
 }
 
     }
 }
 


@@ -321,8 +164,5 @@ void wxCocoaNSSlider::DisassociateNSSlider(WX_NSSlider cocoaNSSlider)
     if(cocoaNSSlider)
     {
         sm_cocoaHash.erase(cocoaNSSlider);
     if(cocoaNSSlider)
     {
         sm_cocoaHash.erase(cocoaNSSlider);

-        [[NSNotificationCenter defaultCenter] removeObserver:(id)sm_cocoaObserver name:kwxNSSliderStartTracking object:cocoaNSSlider];
-        [[NSNotificationCenter defaultCenter] removeObserver:(id)sm_cocoaObserver name:kwxNSSliderContinueTracking object:cocoaNSSlider];
-        [[NSNotificationCenter defaultCenter] removeObserver:(id)sm_cocoaObserver name:kwxNSSliderStopTracking object:cocoaNSSlider];

     }
 }
     }
 }