#import "GutterView.h"
#import <OakAppKit/OakView.h>
#import <editor/editor.h>
#import <buffer/buffer.h>
#import <theme/theme.h>
#import <document/document.h>

extern int32_t const NSWrapColumnWindowWidth;
extern int32_t const NSWrapColumnAskUser;
extern NSString* const kUserDefaultsDisableAntiAliasKey;

namespace bundles { struct item_t; typedef std::shared_ptr<item_t> item_ptr; }
namespace ng      { struct layout_t; }

@class OakTextView;
@class OakTimer;
@class OakChoiceMenu;

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;
	theme_ptr theme;
	std::string fontName;
	CGFloat fontSize;
	BOOL antiAlias;
	BOOL showInvisibles;
	ng::editor_ptr editor;
	std::shared_ptr<ng::layout_t> layout;
	NSUInteger refreshNestCount;
	buffer_refresh_callback_t* callback;

	int32_t wrapColumn;

	BOOL hideCaret;
	NSTimer* blinkCaretTimer;

	NSImage* spellingDotImage;
	NSImage* foldingDotsImage;

	// =================
	// = Mouse Support =
	// =================

	NSCursor* ibeamCursor;

	NSPoint mouseDownPos;
	ng::index_t mouseDownIndex;
	NSInteger mouseDownModifierFlags;
	NSInteger mouseDownClickCount;

	OakTimer* initiateDragTimer;
	OakTimer* dragScrollTimer;
	NSDate* optionDownDate;
	BOOL showDragCursor;
	BOOL showColumnSelectionCursor;
	BOOL ignoreMouseDown;  // set when the mouse down is the same event which caused becomeFirstResponder:
	BOOL delayMouseDown; // set when mouseUp: should process lastMouseDownEvent

	// ===============
	// = Drag’n’drop =
	// ===============

	ng::index_t dropPosition;
	ng::ranges_t markedRanges;
	ng::ranges_t pendingMarkedRanges;

	NSString* selectionString;
	BOOL isUpdatingSelection;

	NSMutableArray* macroRecordingArray;

	// ======================
	// = Incremental Search =
	// ======================

	NSString* liveSearchString;
	ng::ranges_t liveSearchAnchor;
	ng::ranges_t liveSearchRanges;

	// ===================
	// = Snippet Choices =
	// ===================

	OakChoiceMenu* choiceMenu;
	std::vector<std::string> choiceVector;
}
- (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;
@property (nonatomic, assign) BOOL                          antiAlias;
@property (nonatomic, assign) size_t                        tabSize;
@property (nonatomic, assign) BOOL                          showInvisibles;
@property (nonatomic, assign) BOOL                          softWrap;
@property (nonatomic, assign) BOOL                          softTabs;
@property (nonatomic, readonly) BOOL                        continuousIndentCorrections;

@property (nonatomic, readonly) BOOL                        hasMultiLineSelection;
@property (nonatomic, readonly) BOOL                        hasSelection;
@property (nonatomic, retain) NSString*                     selectionString;

@property (nonatomic, assign) BOOL                          isMacroRecording;

- (GVLineRecord const&)lineRecordForPosition:(CGFloat)yPos;
- (GVLineRecord const&)lineFragmentForLine:(NSUInteger)aLine column:(NSUInteger)aColumn;

- (NSPoint)positionForWindowUnderCaret;
- (scope::context_t const&)scopeContext;
- (folding_state_t)foldingStateForLine:(NSUInteger)lineNumber;

- (IBAction)toggleMacroRecording:(id)sender;
- (IBAction)toggleFoldingAtLine:(NSUInteger)lineNumber recursive:(BOOL)flag;
- (IBAction)toggleShowInvisibles:(id)sender;

- (void)performBundleItem:(bundles::item_ptr const&)anItem;
@end