Remove instance data from header

Also add type-safety by introducing a protocol for the delegate.

Frameworks/OakTextView/src/OTVStatusBar.h

@@ -1,21 +1,15 @@
 #import <OakAppKit/OakStatusBar.h>
 #import <text/types.h>
 
+@protocol OTVStatusBarDelegate <NSObject>
+- (void)showLanguageSelector:(id)sender;
+- (void)showBundleItemSelector:(id)sender;
+- (void)showTabSizeSelector:(id)sender;
+- (void)showSymbolSelector:(id)sender;
+- (void)toggleMacroRecording:(id)sender;
+@end
+
 @interface OTVStatusBar : OakStatusBar
-{
-	text::range_t caretPosition;
-	NSString* grammarName;
-	NSString* symbolName;
-	BOOL isMacroRecording;
-	BOOL softTabs;
-	int32_t tabSize;
-
-	id delegate;
-
-	NSImage* pulsedRecordingIndicator;
-	NSTimer* recordingTimer;
-	CGFloat recordingTime;
-}
 - (void)setCaretPosition:(std::string const&)range;
 @property (nonatomic, copy)   NSString* grammarName;
 @property (nonatomic, copy)   NSString* symbolName;
@@ -23,5 +17,5 @@
 @property (nonatomic, assign) BOOL softTabs;
 @property (nonatomic, assign) int32_t tabSize;
 
-@property (nonatomic, assign) id delegate;
+@property (nonatomic, assign) id <OTVStatusBarDelegate> delegate;
 @end

Frameworks/OakTextView/src/OTVStatusBar.mm

@@ -2,6 +2,20 @@
 #import <OakAppKit/NSImage Additions.h>
 
 @interface OTVStatusBar ()
+{
+	text::range_t caretPosition;
+	NSString* grammarName;
+	NSString* symbolName;
+	BOOL isMacroRecording;
+	BOOL softTabs;
+	int32_t tabSize;
+
+	id <OTVStatusBarDelegate> delegate;
+
+	NSImage* pulsedRecordingIndicator;
+	NSTimer* recordingTimer;
+	CGFloat recordingTime;
+}
 - (void)update;
 @property (nonatomic, retain) NSTimer* recordingTimer;
 @property (nonatomic, retain) NSImage* pulsedRecordingIndicator;

Frameworks/OakTextView/src/OakDocumentView.mm

@@ -31,7 +31,7 @@ static NSString* const kFoldingsColumnIdentifier  = @"foldings";
 }
 @end
 
-@interface OakDocumentView ()
+@interface OakDocumentView () <OTVStatusBarDelegate>
 @property (nonatomic, readonly) OTVStatusBar* statusBar;
 @property (nonatomic, retain) NSDictionary* gutterImages;
 @property (nonatomic, retain) NSDictionary* gutterHoverImages;
@@ -469,7 +469,7 @@ private:
 	}
 }
 
-- (IBAction)showLanguageSelector:(id)sender
+- (void)showLanguageSelector:(id)sender
 {
 	std::multimap<std::string, bundles::item_ptr, text::less_t> grammars;
 	citerate(item, bundles::query(bundles::kFieldAny, NULL_STR, scope::wildcard, bundles::kItemTypeGrammar))
@@ -502,7 +502,7 @@ private:
 	[textView setSelectionString:[sender representedObject]];
 }
 
-- (IBAction)showSymbolSelector:(id)sender
+- (void)showSymbolSelector:(id)sender
 {
 	ng::buffer_t const& buf = document->buffer();
 	text::selection_t sel([textView.selectionString UTF8String]);
@@ -531,7 +531,7 @@ private:
 	[statusBar showMenu:menu withSelectedIndex:(index ? index-1 : 0) forCellWithTag:[sender tag] font:[NSFont controlContentFontOfSize:[NSFont smallSystemFontSize]] popup:YES];
 }
 
-- (IBAction)showBundleItemSelector:(id)sender
+- (void)showBundleItemSelector:(id)sender
 {
 	std::multimap<std::string, bundles::item_ptr, text::less_t> ordered;
 	citerate(item, bundles::query(bundles::kFieldAny, NULL_STR, scope::wildcard, bundles::kItemTypeBundle))
@@ -561,7 +561,7 @@ private:
 	[menu release];
 }
 
-- (IBAction)showTabSizeSelector:(id)sender
+- (void)showTabSizeSelector:(id)sender
 {
 	NSInteger index = 0;
 	NSInteger sizes[] = { 2, 3, 4, 8 };
@@ -623,7 +623,7 @@ private:
 	[tabSizeSelectorPanel makeKeyAndOrderFront:self];
 }
 
-- (IBAction)toggleMacroRecording:(id)sender    { [textView toggleMacroRecording:sender]; }
+- (void)toggleMacroRecording:(id)sender    { [textView toggleMacroRecording:sender]; }
 
 - (IBAction)takeThemeUUIDFrom:(id)sender
 {