#import <AppKit/NSPathCell.h>

#import <AppKit/NSPathComponentCell.h>
#import <AppKit/AppKit.h>

#import "AppKit/NSRaise.h"

@implementation NSPathCell

-initWithCoder: (NSCoder *) coder {
	self = [super initWithCoder: coder];
	if (self) {
		if (![coder allowsKeyedCoding]) {
			[NSException raise:NSInvalidArgumentException format:@"%@ can not initWithCoder:%@",[self class],[coder class]];
		}

		[self setPlaceholderString: [coder decodeObjectForKey: @"NSPlaceholderString"]];
		[self setBackgroundColor: [coder decodeObjectForKey: @"NSBackgroundColor"]];
		[self setPathComponentCells: [coder decodeObjectForKey: @"NSPathComponentCells"]];
		[self setPathStyle: [coder decodeIntForKey: @"NSPathStyle"]];
		_delegate=[coder decodeObjectForKey: @"NSDelegate"];
		[self setAllowedTypes: [coder decodeObjectForKey: @"NSAllowedTypes"]];
	}
	
	return self;
}

- (void) dealloc {
   [_URL release];
   [_pathComponentCells release];
   [_backgroundColor release];
   [_allowedTypes release];
   [_placeholder release];
   [super dealloc];
}

- (void)mouseEntered:(NSEvent *)event withFrame:(NSRect)frame inView:(NSView *)view {
	NSUnimplementedMethod();
}

- (void)mouseExited:(NSEvent *)event withFrame:(NSRect)frame inView:(NSView *)view {
	NSUnimplementedMethod();
}

- (NSArray *)allowedTypes {
	return _allowedTypes;
}

- (void)setAllowedTypes:(NSArray *)value {
   value=[value copy];
   [_allowedTypes release];
   _allowedTypes=value;
}

-(NSPathStyle)pathStyle {
   return _pathStyle;
}

-(void)setPathStyle:(NSPathStyle)style {
   _pathStyle = style;
   [[self controlView] setNeedsDisplay: YES];
}

- objectValue {
	return [self URL];
}

- (void)setObjectValue:(id <NSCopying>)valueX {
   id value=(id)valueX;
   
   if([(id)value isKindOfClass: [NSURL class]])
    [self setURL:(id)value];
   else if([(id)value isKindOfClass: [NSString class]])
    [self setURL:[NSURL fileURLWithPath:(id)value]];

   [NSException raise:NSInvalidArgumentException format:@"-[%@ %s] only accepts URL's and strings, class=%@",[self class],_cmd,[(id)value class]];
}

-(NSAttributedString *)placeholderAttributedString {
	return _placeholder;
}

-(void)setPlaceholderAttributedString:(NSAttributedString *)value {
   value=[value copy];
   [_placeholder release];
   _placeholder=value;
}

-(NSString *)placeholderString {
	return [_placeholder string];
}

-(void)setPlaceholderString:(NSString *)string {
   [self setPlaceholderAttributedString: [[[NSAttributedString alloc] initWithString: string] autorelease]];
}

-(NSColor *)backgroundColor {
	return _backgroundColor;
}

-(void)setBackgroundColor:(NSColor *)color {
   color=[color copy];
   [_backgroundColor release];
   _backgroundColor=color;
}

+(Class)pathComponentCellClass {
	return [NSPathComponentCell class];
}

-(NSRect)rectOfPathComponentCell:(NSPathComponentCell *)cell withFrame:(NSRect)frame inView:(NSView *)view {
   NSRect rect=frame;

   for(NSPathComponentCell *check in _pathComponentCells){
    rect.size.width = [check cellSize].width;
        
    if(cell==check)
     return rect;
    
    switch([self pathStyle]){
     case NSPathStyleStandard:
      rect.origin.x += rect.size.width;
      break;
       
     case NSPathStyleNavigationBar:
      // Navigation style components butt up against each other
      rect.origin.x+=rect.size.width;
      break;
      
     case NSPathStylePopUp:
      break;
    }
    
   }
	
   return NSZeroRect;
}

-(NSPathComponentCell *)pathComponentCellAtPoint:(NSPoint)point withFrame:(NSRect)frame inView:(NSView *)view {

   for (NSPathComponentCell *cell in _pathComponentCells) {
    NSRect checkFrame=[self rectOfPathComponentCell: cell withFrame: frame inView: view];
    
    if(NSMouseInRect(point,checkFrame,[view isFlipped] ))
     return cell;
   }
   
   return nil;
}

-(BOOL)trackMouse:(NSEvent *)event inRect:(NSRect)cellFrame ofView:(NSView *)controlView untilMouseUp:(BOOL)untilMouseUp {
   
    do {
     NSPoint point=[controlView convertPoint:[event locationInWindow] fromView:nil];
     
     [_clickPathComponentCell release];
     _clickPathComponentCell=[[self pathComponentCellAtPoint:point withFrame:cellFrame inView:controlView] retain];
     
     [controlView setNeedsDisplay:YES];
                 
     event=[[controlView window] nextEventMatchingMask:NSLeftMouseUpMask|NSLeftMouseDraggedMask];

    } while ([event type] != NSLeftMouseUp);
    

    return (_clickPathComponentCell!=nil);
}

- (NSPathComponentCell *)clickedPathComponentCell {    
   return _clickPathComponentCell;
}

-(NSArray *)pathComponentCells {
	return _pathComponentCells;
}

- (void)setPathComponentCells:(NSArray *)cells {
   cells=[cells retain];
   [_pathComponentCells release];
   _pathComponentCells=cells;
   
   [_clickPathComponentCell release];
   _clickPathComponentCell=nil;
   
   [[self controlView] setNeedsDisplay: YES];
}

- (SEL)doubleAction {
	return _doubleAction;
}

- (void)setDoubleAction:(SEL)action {
	_doubleAction = action;
}

-(NSURL *)URL {
	return _URL;
}

-(void)setURL:(NSURL *)url {
   url=[url copy];
   [_URL release];
   _URL=url;
   
   NSMutableArray *cells=[NSMutableArray array];
   
   if (url!=nil) {
    NSFileManager *fm = [NSFileManager defaultManager];
    NSWorkspace *ws = [NSWorkspace sharedWorkspace];
    BOOL      isFileURL = [url isFileURL];
    NSString *host = [url host];
    NSString *path = [url path];
    NSString *scheme = [url scheme];
    Class pcClass = [[self class] pathComponentCellClass];

    NSArray         *pathComponents = [path pathComponents];
    NSMutableString *currentPath = [NSMutableString string];
    
    for (NSString *path in pathComponents) {
     [currentPath appendString: @"/"];
     [currentPath appendString: path];
     
     NSURL    *currentURL = [[[NSURL alloc] initWithScheme: scheme host: host path: currentPath] autorelease];
     NSString *title;
     NSImage  *image;
				
     if (isFileURL) {
      title = [fm displayNameAtPath: currentPath]; 
      image = [ws iconForFile: currentPath];
     }
     else {
      title=[path stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
      image=nil;
     }
				
     NSPathComponentCell *cell = [[[pcClass alloc] initTextCell: nil] autorelease];
     [cell setURL: currentURL];
     [cell setImage: image];
     [cell setStringValue: title];
				
     [cells addObject: cell];
    }
   }

   [self setPathComponentCells: cells];
}

-delegate {
   return _delegate;
}

-(void)setDelegate:(id)delegate {
   _delegate = delegate;
}

-(void)drawWithFrame:(NSRect)frame inView:(NSView *)view {   
	[_backgroundColor set];
	[NSBezierPath fillRect: frame];

// Draw them last to first to get the proper overlapping arrows drawing
	
    NSInteger count=[_pathComponentCells count];
    
    while(--count>=0){
     NSPathComponentCell *cell=[_pathComponentCells objectAtIndex:count];
     NSRect cellFrame = [self rectOfPathComponentCell: cell withFrame: frame inView: view];
     [cell drawWithFrame: cellFrame inView: view];
	}
}

@end