Add support for window can become key

INPopoverController.h

@@ -77,6 +77,9 @@
 /** Whether the popover is currently visible or not **/
 @property (readonly) BOOL popoverIsVisible;
 
+/** Whether the window can become key or not. Default value: YES **/
+@property (nonatomic, assign) BOOL windowCanBecomeKey;
+
 #pragma mark -
 #pragma mark Methods
 

INPopoverController.m

@@ -376,7 +376,8 @@ - (void)_closePopoverAndResetVariables
 	[_popoverWindow orderOut:nil]; // Close the window 
 	[self _callDelegateMethod:@selector(popoverDidClose:)]; // Call the delegate to inform that the popover has closed
 	[positionWindow removeChildWindow:_popoverWindow]; // Remove it as a child window
-	[positionWindow makeKeyAndOrderFront:nil];
+    if ( self.windowCanBecomeKey )
+        [positionWindow makeKeyAndOrderFront:nil];
 	// Clear all the ivars
 	[self _setArrowDirection:INPopoverArrowDirectionUndefined];
 	[self _setPositionView:nil];
@@ -403,4 +404,14 @@ - (void)_callDelegateMethod:(SEL)selector
 	}
 }
 
+- (void)setWindowCanBecomeKey:(BOOL)windowCanBecomeKey
+{
+    _popoverWindow.canBecomeKeyWindow = windowCanBecomeKey;
+}
+
+- (BOOL)windowCanBecomeKey
+{
+    return _popoverWindow.canBecomeKeyWindow;
+}
+
 @end

INPopoverWindow.h

@@ -17,10 +17,12 @@
 @interface INPopoverWindow : NSWindow {
 	NSView *_popoverContentView;
 	NSWindow *_zoomWindow;
+    BOOL _canBecomeKeyWindow;
 }
 
 @property (nonatomic, readonly) INPopoverWindowFrame *frameView; // Equivalent to contentView
 @property (nonatomic, retain) NSView *popoverContentView;
+@property (nonatomic, assign) BOOL canBecomeKeyWindow;
 
 - (void)presentWithPopoverController:(INPopoverController *)popoverController;
 - (void)dismissAnimated;

INPopoverWindow.m

@@ -23,13 +23,16 @@ - (NSWindow *)_zoomWindowWithRect:(NSRect)rect;
 
 @implementation INPopoverWindow
 
+@synthesize canBecomeKeyWindow = _canBecomeKeyWindow;
+
 // Borderless, transparent window
 - (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)windowStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)deferCreation
 {
 	if ((self = [super initWithContentRect:contentRect styleMask:NSBorderlessWindowMask backing:bufferingType defer:deferCreation])) {
 		[self setOpaque:NO];
 		[self setBackgroundColor:[NSColor clearColor]];
 		[self setHasShadow:YES];
+        [self setCanBecomeKeyWindow:YES];
 	}
 	return self;
 }
@@ -49,7 +52,7 @@ - (NSRect)frameRectForContentRect:(NSRect)contentRect
 // Allow the popover to become the key window
 - (BOOL)canBecomeKeyWindow
 {
-	return YES;
+	return _canBecomeKeyWindow;
 }
 
 - (BOOL)canBecomeMainWindow