Introduce OakTextViewDelegate

Frameworks/DocumentWindow/src/DocumentController.h

@@ -1,14 +1,13 @@
 #import "DocumentOpenHelper.h"
 #import <OakFileBrowser/OakFileBrowser.h>
 #import <OakAppKit/OakTabBarView.h>
+#import <OakTextView/OakDocumentView.h>
 #import <oak/debug.h>
 #import <plist/uuid.h>
 #import <command/runner.h>
 #import <scm/scm.h>
 
 @class ProjectLayoutView;
-@class OakDocumentView;
-@class OakTextView;
 @class OakFilterWindowController;
 @class OakHTMLOutputView;
 
@@ -17,7 +16,7 @@ typedef std::shared_ptr<document_tab_t> document_tab_ptr;
 
 namespace bundles { struct item_t; typedef std::shared_ptr<item_t> item_ptr; }
 
-PUBLIC @interface DocumentController : NSWindowController <NSWindowDelegate, OakFileBrowserDelegate, OakTabBarViewDelegate, OakTabBarViewDataSource, DocumentOpenHelperDelegate>
+PUBLIC @interface DocumentController : NSWindowController <NSWindowDelegate, OakFileBrowserDelegate, OakTabBarViewDelegate, OakTabBarViewDataSource, DocumentOpenHelperDelegate, OakTextViewDelegate>
 {
 	OBJC_WATCH_LEAKS(DocumentController);
 

Frameworks/DocumentWindow/src/DocumentController.mm

@@ -20,7 +20,6 @@ namespace find_tags
 #import <OakAppKit/NSMenuItem Additions.h>
 #import <OakAppKit/OakSubmenuController.h>
 #import <OakAppKit/OakSavePanel.h>
-#import <OakTextView/OakDocumentView.h>
 #import <OakFoundation/OakFoundation.h>
 #import <OakFoundation/NSArray Additions.h>
 #import <OakFoundation/NSString Additions.h>
@@ -487,6 +486,7 @@ OAK_DEBUG_VAR(DocumentController);
 	layoutView.documentView = documentView;
 
 	textView = documentView.textView;
+	textView.delegate = self;
 
 	tabBarView.delegate   = self;
 	tabBarView.dataSource = self;
@@ -614,6 +614,22 @@ OAK_DEBUG_VAR(DocumentController);
 		[self goToFileCounterpart:self];
 }
 
+// ========================
+// = OakTextView Delegate =
+// ========================
+
+- (NSString*)scopeAttributes
+{
+	if(selectedTabIndex >= documentTabs.size())
+	{
+		fprintf(stderr, "*** error: selected tab out of bounds: %zu >= %zu\n", selectedTabIndex, documentTabs.size());
+		return nil;
+	}
+
+	document::document_ptr doc = [self selectedDocument];
+	return doc ? [NSString stringWithCxxString:doc->path_attributes()] : nil;
+}
+
 // =============================
 // = OakTabBarView Data Source =
 // =============================

Frameworks/OakTextView/src/OakTextView.h

@@ -20,6 +20,11 @@ struct buffer_refresh_callback_t;
 
 enum folding_state_t { kFoldingNone, kFoldingTop, kFoldingCollapsed, kFoldingBottom };
 
+@protocol OakTextViewDelegate <NSObject>
+@optional
+- (NSString*)scopeAttributes;
+@end
+
 PUBLIC @interface OakTextView : OakView <NSTextInput, NSTextFieldDelegate>
 {
 	document::document_ptr document;
@@ -91,6 +96,7 @@ PUBLIC @interface OakTextView : OakView <NSTextInput, NSTextFieldDelegate>
 }
 - (void)setDocument:(document::document_ptr const&)aDocument;
 
+@property (nonatomic, assign) id <OakTextViewDelegate>      delegate;
 @property (nonatomic, assign) theme_ptr const&              theme;
 @property (nonatomic, retain) NSCursor*                     ibeamCursor;
 @property (nonatomic, retain) NSFont*                       font;

Frameworks/OakTextView/src/OakTextView.mm

@@ -299,6 +299,19 @@ static std::string shell_quote (std::vector<std::string> paths)
 @synthesize refreshNestCount;
 @synthesize liveSearchViewController, liveSearchString, liveSearchRanges;
 
+// =================================
+// = OakTextView Delegate Wrappers =
+// =================================
+
+- (NSString*)scopeAttributes
+{
+	if([self.delegate respondsToSelector:@selector(scopeAttributes)])
+		return [self.delegate scopeAttributes];
+	return nil;
+}
+
+// =================================
+
 - (NSImage*)imageForRanges:(ng::ranges_t const&)ranges imageRect:(NSRect*)outRect
 {
 	NSRect srcRect = NSZeroRect, visibleRect = [self visibleRect];