//
//  KMToolbar.m
//  SignFlow
//

//  Copyright © 2022 Kdan Mobile. All rights reserved.
//

#import "KMToolbar.h"
#import <Masonry/Masonry.h>
#import <PDF_Master-Swift.h>

NSString *KMNewToolbarSpaceItemIdentifier = @"KMNewToolbarSpaceItemIdentifier";
NSString *KMToolbarDividerItemIdentifier = @"KMToolbarDividerItemIdentifier";

#define KMToolbarSpaceItemWidth 30.0
#define KMToolbarLineItemWidth 1.0
#define KMToolbarItemSpace (6.0+2.0)

#pragma mark - KMToolbarClickButton

@implementation KMToolbarClickButton

@end

#pragma mark - KMToolBoxItem

@interface KMToolBoxItem()<KMCustomButtonPopMenuViewControllerDelegate,KMCustomButtonPopMenuViewControllerDataSources,NSPopoverDelegate>

@property(nonatomic,retain) NSBox *imageViewBox;

@property(nonatomic,retain) NSButton *imageViewBtn;

@property(nonatomic,retain) NSButton *nameBtn;

@property(nonatomic,retain) KMToolbarClickButton *clickButton;

@property(nonatomic,retain) NSButton *needExpandButton;

@property (nonatomic,retain) NSPopover *popOver;

@property (nonatomic,retain) KMCustomButtonPopMenuViewController *menuViewController;

@property (nonatomic,retain) NSString *itemIdentifier;

@property (nonatomic,retain) NSImage *kNormalImage;

@property (nonatomic,retain) NSString *originalHelpTip;

@end

@implementation KMToolBoxItem

- (void)dealloc {
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)drawRect:(NSRect)dirtyRect {
    if ([self.itemIdentifier isEqual:KMToolbarDividerItemIdentifier]) {
        CGContextRef context = (CGContextRef)[[NSGraphicsContext currentContext] graphicsPort];
        CGContextSaveGState(context);
        CGContextTranslateCTM(context, CGRectGetWidth(dirtyRect)/2., CGRectGetHeight(dirtyRect)/2. - 10);
        CGContextMoveToPoint(context, 0, 0);
        CGContextAddLineToPoint(context, 0, 20);
        CGContextSetStrokeColorWithColor(context, [NSColor colorWithRed:0 green:0 blue:0 alpha:0.1].CGColor);
        CGContextStrokePath(context);
        CGContextRestoreGState(context);
    }
}


- (instancetype)initWithItemIdentifier:(NSString *)itemIdentifier
                             postition:(KMToolBoxImagePosition)imagePositionImagePosition
                           withPopMenu:(KMCustomButtonPopMenuViewController *)popMenuViewController
{
    if (self == [super init]) {
        self.boxImagePosition = imagePositionImagePosition;
        self.menuViewController = popMenuViewController;
        self.itemIdentifier = itemIdentifier;
        self.wantsLayer = YES;
        self.layer.cornerRadius = 4;
        self.layer.masksToBounds = YES;
        
        self.normalBackgroundColor = [NSColor clearColor];
        self.selectedBackgroundColor = [NSColor colorWithRed:223.0/255.0 green:225.0/255.0 blue:229.0/255.0 alpha:1];
        
        [self addTrackingArea];
        [self layoutView];
        if (popMenuViewController) {
            [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(windowClosedPop:) name:@"KMPopOverClosedByWindowNotification" object:nil];
        }
    }
    return self;
}

- (instancetype)initWithItemIdentifier:(NSString *)itemIdentifier {
    if (self == [super init]) {
        self.itemIdentifier = itemIdentifier;
        self.boxImagePosition = KMToolBoxImagePosition_Left;
        self.wantsLayer = YES;
        self.layer.cornerRadius = 5;
        self.layer.masksToBounds = YES;
        
        self.normalBackgroundColor = [NSColor clearColor];
        self.selectedBackgroundColor = [NSColor colorWithRed:223.0/255.0 green:225.0/255.0 blue:229.0/255.0 alpha:1];
        
        [self addTrackingArea];
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(windowClosedPop:) name:@"KMPopOverClosedByWindowNotification" object:nil];
    }
    return self;
}

#pragma mark - View

- (void)layoutView
{
    CGFloat offset = 4;
    CGFloat offsetY = 2;
    CGFloat offsetX = 4;
    if ([self.nameBtn superview]) {
        [self.nameBtn removeFromSuperview];
    }
    if ([self.linView superview]) {
        [self.linView removeFromSuperview];
    }
    
    if([self.imageViewBox superview]) {
        [self.imageViewBox removeFromSuperview];
    }
    if([self.imageViewBtn superview]) {
        [self.imageViewBtn removeFromSuperview];
    }
    
    if(self.customizeView) {
        if([self.customizeView superview]) {
            [self.customizeView removeFromSuperview];
        }
        [self addSubview:self.customizeView];
        [self.customizeView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.right.equalTo(@0);
            make.centerY.equalTo(@0);
            make.width.offset(self.customizeView.frame.size.width);
            make.height.offset(self.customizeView.frame.size.height);
        }];
        return;
    }
    
    if (KMToolBoxImagePosition_Only == self.boxImagePosition && ![self.itemIdentifier isEqual:KMToolbarDividerItemIdentifier]) {
        [self addSubview:self.imageViewBox];
        [self.imageViewBox mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.right.top.bottom.equalTo(@0);

        }];
        
        [self.imageViewBox.contentView addSubview:self.imageViewBtn];
        [self.imageViewBtn mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.equalTo(self.imageViewBox.mas_left).offset(offsetX);
            make.top.equalTo(self.imageViewBox.mas_top).offset(offsetY);
            make.bottom.equalTo(self.imageViewBox.mas_bottom).offset(-offsetY);
            make.right.equalTo(self.imageViewBox.mas_right).offset(-offsetX);
        }];
   
    } else if (KMToolBoxImagePosition_Left == self.boxImagePosition) {
        [self addSubview:self.imageViewBox];
        [self.imageViewBox mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.top.bottom.equalTo(@0);
        }];
        
        [self.imageViewBox.contentView addSubview:self.imageViewBtn];
        [self.imageViewBtn mas_makeConstraints:^(MASConstraintMaker *make) {
            make.right.equalTo(@0);
            make.left.equalTo(self.imageViewBox.mas_left).offset(2 * offsetX);
            make.top.equalTo(self.imageViewBox.mas_top).offset(offsetY);
            make.bottom.equalTo(self.imageViewBox.mas_bottom).offset(-offsetY);
        }];
        
        [self addSubview:self.nameBtn];
        [self.nameBtn mas_makeConstraints:^(MASConstraintMaker *make) {
            make.centerY.equalTo(@0);
            make.left.equalTo(self.imageViewBox.mas_right).offset(0);
            if(self.needExpandAction) {
                make.right.equalTo(self.mas_right).offset(- 2 * offsetX-8);
            } else {
                make.right.equalTo(self.mas_right).offset(- 2 * offsetX);
            }
        }];
        
        if(self.needExpandAction) {
            self.needExpandButton.image = [NSImage imageNamed:@"KMImageNameUXIconBtnTriDownNor"];
            [self addSubview:self.needExpandButton];
            [self.needExpandButton mas_makeConstraints:^(MASConstraintMaker *make) {
                make.centerY.equalTo(@0);
                make.width.height.equalTo(@8);
                make.right.equalTo(self.mas_right).offset(-offset);
            }];
        }
        
        self.layer.cornerRadius = 6;
    } else if (KMToolBoxImagePosition_ExpandLeft == self.boxImagePosition) {
        [self addSubview:self.imageViewBox];
        [self.imageViewBox mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.top.bottom.equalTo(@0);
        }];
        
        [self.imageViewBox.contentView addSubview:self.imageViewBtn];
        [self.imageViewBtn mas_makeConstraints:^(MASConstraintMaker *make) {
            make.right.equalTo(@0);
            make.left.equalTo(self.imageViewBox.mas_left).offset(offsetX);
            make.top.equalTo(self.imageViewBox.mas_top).offset(offsetY);
            make.bottom.equalTo(self.imageViewBox.mas_bottom).offset(-offsetY);
        }];
        
        self.needExpandButton.image = [NSImage imageNamed:@"KMImageNameUXIconBtnTriDownNor"];
        [self addSubview:self.needExpandButton];
        [self.needExpandButton mas_makeConstraints:^(MASConstraintMaker *make) {
            make.centerY.equalTo(@0);
            make.width.height.equalTo(@8);
            make.right.equalTo(self.mas_right).offset(-offsetX);
        }];
        
        [self addSubview:self.nameBtn];
        [self.nameBtn mas_makeConstraints:^(MASConstraintMaker *make) {
            make.centerY.equalTo(@0);
            make.left.equalTo(self.imageViewBox.mas_right).offset(0);
            make.right.equalTo(self.needExpandButton.mas_left).offset(0);
        }];
    } else if(KMToolBoxImagePosition_Above == self.boxImagePosition){
        [self addSubview:self.nameBtn];
        self.nameBtn.alignment = NSTextAlignmentCenter;
        [self.nameBtn mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.right.equalTo(@0);
            make.width.greaterThanOrEqualTo(@32);
            make.bottom.equalTo(self.mas_bottom).offset(0);
        }];
        
        [self addSubview:self.imageViewBox];
        [self.imageViewBox mas_makeConstraints:^(MASConstraintMaker *make) {
            make.top.equalTo(@0);
            make.width.equalTo(@32);
            make.centerX.equalTo(@0);
            make.bottom.equalTo(self.nameBtn.mas_top).offset(0);
        }];
        
        [self.imageViewBox.contentView addSubview:self.imageViewBtn];
        [self.imageViewBtn mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.top.right.equalTo(@(offset));
            make.bottom.right.equalTo(@(-offset));
        }];
    }

    if([self.nameBtn superview] && self.isMainTool) {
        [self addSubview:self.linView];
        [self.linView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.width.offset(32);
            make.height.offset(3);
            make.centerX.equalTo(self.mas_centerX);
            make.bottom.equalTo(self.mas_bottom).offset(0);
        }];
        _nameBtn.font = [NSFont systemFontOfSize:14.0];
        self.linView.hidden = YES;
    } else {
        _nameBtn.font = [NSFont systemFontOfSize:12.0];
    }
    
    if (![self.itemIdentifier isEqual:KMToolbarDividerItemIdentifier]) {
        self.imageViewBox.borderColor = [NSColor clearColor];
        self.imageViewBox.borderWidth = 1.0;
        self.imageViewBox.cornerRadius = 7.0;
        
        [self addSubview:self.clickButton];
        [self.clickButton mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.right.top.bottom.equalTo(@0);
        }];
    }
}

#pragma mark - Get&Set

- (void)setBoxImagePosition:(KMToolBoxImagePosition)boxImagePosition
{
    _boxImagePosition = boxImagePosition;
    [self layoutView];
}

- (void)setCustomizeView:(NSView *)customizeView {
    _customizeView = customizeView;
    [self layoutView];
}

- (void)setIsSelected:(BOOL)isSelected
{
    _isSelected = isSelected;
    if (![self.itemIdentifier isEqual: KMToolbarDividerItemIdentifier]) {
        if (isSelected) {
            if (_isMainTool) {
                self.layer.backgroundColor = self.normalBackgroundColor.CGColor;
                [self.nameBtn setTitleColorWithColor:[KMAppearance titleColor] font:[NSFont fontWithName:@"SFProText-Semibold" size:14]];
                self.linView.hidden = NO;
                return;
            }
            self.layer.backgroundColor = self.selectedBackgroundColor.CGColor;
            if(self.image && self.alternateImage) {
                if (self.selectedImage) {
                    self.imageViewBtn.image = self.selectedImage;
                } else {
                    self.imageViewBtn.image = self.alternateImage;
                }
            }
            if(self.nameBtn.superview) {
                [self.nameBtn setTitleColorWithColor:[KMAppearance titleColor] font:nil];
            }
            if(self.needExpandAction) {
                self.needExpandButton.image = [NSImage imageNamed:@"KMImageNameUXIconBtnTriDownSel"];
            }
        } else {
            if (_isMainTool) {
                self.layer.backgroundColor = self.normalBackgroundColor.CGColor;
                [self.nameBtn setTitleColorWithColor:[NSColor colorWithRed:97.0/255.0 green:100.0/255.0 blue:105.0/255.0 alpha:1] font:[NSFont fontWithName:@"SFProText-Regular" size:14]];
                self.linView.hidden = YES;
                return;
            }
            self.layer.backgroundColor = self.normalBackgroundColor.CGColor;
            if(self.needExpandAction) {
                self.needExpandButton.image = [NSImage imageNamed:@"KMImageNameUXIconBtnTriDownNor"];
            }
            if(self.image) {
                self.imageViewBtn.image = self.image;
            }
            if(self.nameBtn.superview) {
                [self.nameBtn setTitleColorWithColor:[KMAppearance titleColor] font:nil];
            }
        }
    }
}

- (void)setIsMainTool:(BOOL)isMainTool {
    _isMainTool = isMainTool;
    if (_isMainTool) {
        [self.nameBtn setTitleColorWithColor:[NSColor colorWithRed:97.0/255.0 green:100.0/255.0 blue:105.0/255.0 alpha:1] font:[NSFont fontWithName:@"SFProText-Regular" size:14]];
    } else {
        [self.nameBtn setTitleColorWithColor:[KMAppearance titleColor] font:nil];
    }
    [self layoutView];
}

- (void)setPopOver:(NSPopover *)popOver
{
    if (![_popOver isEqual:popOver]) {
        _popOver = popOver;
        if (popOver) {
            self.layer.backgroundColor = self.selectedBackgroundColor.CGColor;
        } else {
            if (self.isSelected) {
                self.layer.backgroundColor = self.selectedBackgroundColor.CGColor;
            }else {
                self.layer.backgroundColor = self.normalBackgroundColor.CGColor;
            }
        }
    }
}

- (NSButton *)imageViewBtn
{
    if (!_imageViewBtn) {
        _imageViewBtn = [[NSButton alloc] init];
        _imageViewBtn.bezelStyle = NSBezelStyleRegularSquare;
        _imageViewBtn.bordered = NO;
        _imageViewBtn.imagePosition = NSImageOnly;
    }
    return _imageViewBtn;
}

- (KMToolbarClickButton *)clickButton
{
    if (!_clickButton) {
        _clickButton = [[KMToolbarClickButton alloc] init];
        _clickButton.bezelStyle = NSBezelStyleRegularSquare;
        _clickButton.bordered = NO;
        _clickButton.imagePosition = NSImageOnly;
        _clickButton.clickObject = self;
    }
    return _clickButton;
}

- (NSButton *)needExpandButton
{
    if (!_needExpandButton) {
        _needExpandButton = [[NSButton alloc] init];
        _needExpandButton.bezelStyle = NSBezelStyleRegularSquare;
        _needExpandButton.bordered = NO;
        _needExpandButton.image = [NSImage imageNamed:@"KMImageNameUXIconBtnTriDownNor"];
        _needExpandButton.imagePosition = NSImageOnly;
    }
    return _needExpandButton;
}

- (NSButton *)nameBtn
{
    if (!_nameBtn) {
        _nameBtn = [[NSButton alloc] init];
        _nameBtn.bezelStyle = NSBezelStyleRegularSquare;
        _nameBtn.bordered = NO;
        _nameBtn.imagePosition = NSNoImage;
        _nameBtn.font = [NSFont systemFontOfSize:12.0];
        [_nameBtn setTitle:_titleName ? : @" "];
    }
    return _nameBtn;
}

-(NSBox *)imageViewBox
{
    if (!_imageViewBox) {
        _imageViewBox = [[NSBox alloc] init];
        [_imageViewBox setBorderWidth:0.0f];
        _imageViewBox.contentViewMargins = NSMakeSize(0, 0);
        _imageViewBox.boxType = NSBoxCustom;
    }
    return _imageViewBox;
}

- (NSView *)linView
{
    if (!_linView) {
        _linView = [[NSView alloc] init];
        _linView.wantsLayer = YES;
        _linView.layer.backgroundColor = [NSColor colorWithRed:23.0/255.0 green:112.0/255.0 blue:244.0/255.0 alpha:1].CGColor;
        _linView.layer.cornerRadius = 2.0;
    }
    return _linView;
}

-(void)setImage:(NSImage *)image
{
    if (image != _image) {
        _image = image;
    }
    self.imageViewBtn.image = image;
}

-(void)setTitleName:(NSString *)titleName
{
    if (titleName != _titleName) {
        _titleName = titleName;
    }
    self.nameBtn.title = titleName ? : KMToolbarDividerItemIdentifier;
    
    [self.nameBtn setTitleColorWithColor:[KMAppearance titleColor] font:nil];
}

- (void)setTarget:(id)target
{
    _target = target;
    self.clickButton.target = target;
}

- (void)setBtnTag:(NSInteger)btnTag
{
    _btnTag = btnTag;
    self.clickButton.tag = btnTag;
}


- (void)setBtnAction:(SEL)btnAction
{
    _btnAction = btnAction;
    self.clickButton.action = btnAction;
}

-(void)setToolTip:(NSString *)toolTip
{
    self.clickButton.toolTip = toolTip?:@"";
    self.originalHelpTip = self.clickButton.toolTip;
    if(self.isShowCustomToolTip) {
        self.clickButton.toolTip = @"";
    }
}

- (void)setIsShowCustomToolTip:(BOOL)isShowCustomToolTip {
    _isShowCustomToolTip = isShowCustomToolTip;
    if(isShowCustomToolTip) {
        self.clickButton.toolTip = @"";
    }
}

- (void)setUnEnabled:(BOOL)unEnabled
{
    if (unEnabled) {
        self.clickButton.enabled = NO;
        self.nameBtn.enabled = NO;
        self.imageViewBtn.enabled = NO;
        self.needExpandButton.enabled = NO;
    } else {
        self.clickButton.enabled = YES;
        self.nameBtn.enabled = YES;
        self.imageViewBtn.enabled = YES;
        self.needExpandButton.enabled = YES;
    }
}

#pragma mark - Private

- (void)addTrackingArea
{
    NSTrackingArea *trackingArea = [[NSTrackingArea alloc] initWithRect:self.bounds options:NSTrackingMouseEnteredAndExited | NSTrackingInVisibleRect | NSTrackingActiveInKeyWindow owner:self userInfo:nil];
    [self addTrackingArea:trackingArea];
}

- (void)mouseEntered:(NSEvent *)event {
    [super mouseEntered:event];
    if (![self.window isKeyWindow]) {
        return;
    }
    if ([self.itemIdentifier isEqualToString:KMToolbarDividerItemIdentifier] || self.customizeView || self.image == nil) {
        return;
    }
    if (!self.isSelected) {
        self.layer.backgroundColor = self.selectedBackgroundColor.CGColor;
        if(self.image && self.alternateImage) {
            self.kNormalImage = self.image;
            self.imageViewBtn.image = self.alternateImage;
            if(self.nameBtn.superview) {
                [self.nameBtn setTitleColorWithColor:[KMAppearance titleColor] font:nil];
            }
        }
    }
    if (self.needExpandAction) {
        self.needExpandButton.image = [NSImage imageNamed:@"KMImageNameUXIconBtnTriDownSel"];
        [self showPop:self];
    }else if (_isShowCustomToolTip) {
        [self performSelector:@selector(showHUDHint) withObject:nil afterDelay:0.1];
    }
}

- (void)mouseExited:(NSEvent *)event {
    [super mouseExited:event];

    if (!_isSelected && !self.needExpandAction) {
        self.layer.backgroundColor = self.normalBackgroundColor.CGColor;
        if(self.image && self.alternateImage) {
            self.imageViewBtn.image = self.kNormalImage ? : self.image;
        }
    }

    if(self.needExpandAction && !_isSelected) {
        self.layer.backgroundColor = self.normalBackgroundColor.CGColor;
        if(self.image && self.alternateImage) {
            self.imageViewBtn.image = self.kNormalImage ? : self.image;
        }
        self.needExpandButton.image = [NSImage imageNamed:@"KMImageNameUXIconBtnTriDownNor"];
    }
    
    if (![self.window isKeyWindow]) {
        return;
    }
    
    if(self.nameBtn.superview && !_isSelected && !_isMainTool) {
        [self.nameBtn setTitleColorWithColor:[KMAppearance titleColor] font:nil];
    }
    
    if (_isShowCustomToolTip && !self.needExpandAction) {
        [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(showHUDHint) object:nil];
        [self closePop];
    }
}

- (void)showPop:(NSView *)sender {

}

- (void)showHUDHint {
//    KMToolbarItemPopViewController *popViewController = [[[KMToolbarItemPopViewController alloc] init] autorelease];
//    self.popOver = [[[NSPopover alloc] init] autorelease];
//    self.popOver.contentViewController = popViewController;
//    self.popOver.animates = NO;
//    self.popOver.behavior = NSPopoverBehaviorSemitransient;
//    self.popOver.backgroundColor = [KMAppearance KMBluegrey01Color];
//
//    self.popOver.contentSize = popViewController.view.frame.size;
//    [popViewController updateWithHelpTip:self.originalHelpTip];
//    [self.popOver showRelativeToRect:self.bounds ofView:self preferredEdge:NSRectEdgeMinY];
}

- (void)windowClosedPop:(NSNotification *)sender
{
    if ([sender.object isEqual:self.popOver]) {
        self.popOver = nil;
    }
}

- (void)closePop {
    [self.popOver close];
    self.popOver  = nil;
}


@end



#pragma mark - KMNewToolbar

@interface KMToolbar ()

@property (nonatomic,retain) NSString *toolbarIdentifier;

@property (nonatomic,retain) NSArray *items;

@property (nonatomic,retain) NSArray *visibleItems;

@property (nonatomic,retain) NSMutableArray *invisibleItems;

@property (nonatomic,retain) NSView *contentView;

@property (nonatomic,retain) NSButton *moreButton;

@end

@implementation KMToolbar

#pragma mark - Init Methods

- (instancetype)initWithIdentifier:(NSString *)identifier
{
    if (self = [super init]) {
        self.toolbarIdentifier = identifier;
        [self addTrackingArea];
    }
    return self;
}

- (instancetype)initWithCoder:(NSCoder *)decoder
{
    if (self = [super initWithCoder:decoder]) {
        self.wantsLayer = YES;
        self.layer.backgroundColor = [NSColor clearColor].CGColor;
        [self addTrackingArea];
    }
    return self;
}

- (instancetype)initWithFrame:(NSRect)frameRect
{
    if (self = [super initWithFrame:frameRect]) {
        self.wantsLayer = YES;
        self.layer.backgroundColor = [NSColor clearColor].CGColor;
        [self addTrackingArea];
        
    }
    return self;
}

- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

-(void)mouseMoved:(NSEvent *)event
{
    [self.window mouseMoved:event];
    [super mouseMoved:event];
}

- (void)addTrackingArea
{
    NSTrackingArea *trackingArea = [[NSTrackingArea alloc] initWithRect:self.bounds options: NSTrackingInVisibleRect | NSTrackingActiveInKeyWindow | NSTrackingMouseMoved owner:self userInfo:nil];
    [self addTrackingArea:trackingArea];
}

#pragma mark - Private Methods

- (NSButton *)moreButton
{
    if (!_moreButton) {
        _moreButton = [[NSButton alloc] init];
        _moreButton.bezelStyle = NSBezelStyleRegularSquare;
        _moreButton.bordered = NO;
        _moreButton.font = [NSFont systemFontOfSize:20];
        _moreButton.title = @" »";
        _moreButton.hidden = YES;
        _moreButton.target = self;
        _moreButton.action = @selector(moreButtonAction:);
        _moreButton.wantsLayer = YES;
        _moreButton.layer.backgroundColor = [NSColor colorWithRed:223.0/255.0 green:225.0/255.0 blue:229.0/255.0 alpha:1].CGColor;
    }
    return _moreButton;
}

- (void)moreButtonAction:(id)sender
{
    NSMenu *menu = [[NSMenu alloc] init];
    for (KMToolBoxItem *item in self.invisibleItems) {
        if ([item.itemIdentifier isEqualToString:KMToolbarDividerItemIdentifier]) {
            [menu addItem:[NSMenuItem separatorItem]];
        } else if (item.menuFormRepresentation) {
            [menu addItem:item.menuFormRepresentation];
        }
    }
    [menu popUpMenuPositioningItem:menu.itemArray.firstObject
                        atLocation:NSMakePoint(CGRectGetMaxX(self.moreButton.frame),
                                               CGRectGetMaxY(self.moreButton.frame)-5)
                            inView:self];
}

- (NSView *)contentView
{
    if (!_contentView) {
        _contentView = [[NSView alloc] init];
    }
    return _contentView;
}

- (void)updateMainView
{
    NSView *centerView = [[NSView alloc] init];
    [self addSubview:centerView];
    
    NSView *leftView = [[NSView alloc] init];
    leftView.wantsLayer = YES;
    leftView.layer.backgroundColor = [NSColor colorWithRed:247/255.f green:248/255.f blue:250/255.f alpha:1.f].CGColor;
    [self addSubview:leftView];
    [leftView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.mas_left).offset(0);
        make.top.equalTo(self.mas_top).offset(0);
        make.bottom.equalTo(self.mas_bottom).offset(0);
    }];
    NSArray *leftitemIdentifiers = nil;
    if ([self.delegate respondsToSelector:@selector(toolbarLeftDefaultItemIdentifiers:)]) {
        leftitemIdentifiers = [self.delegate toolbarLeftDefaultItemIdentifiers:self];
    }
    KMToolBoxItem *leftlastItem = nil;
    for (NSUInteger i=0; i< leftitemIdentifiers.count; i++) {
        NSString *itemIdentifier = leftitemIdentifiers[i];
        if (![itemIdentifier isKindOfClass:[NSString class]]) {
            return;
        }
        KMToolBoxItem *item = nil;
        if ([itemIdentifier isEqualToString:KMToolbarDividerItemIdentifier]) {
            item = [[KMToolBoxItem alloc] initWithItemIdentifier:itemIdentifier postition:KMToolBoxImagePosition_Only withPopMenu:nil];
        } else if ([itemIdentifier isEqualToString:KMNewToolbarSpaceItemIdentifier]) {
            item = [[KMToolBoxItem alloc] initWithItemIdentifier:itemIdentifier postition:KMToolBoxImagePosition_Only withPopMenu:nil];
            item.layer.backgroundColor = [NSColor clearColor].CGColor;
            item.imageViewBox.borderColor = [NSColor clearColor];
            item.layer.cornerRadius = 0.0;
        } else if ([self.delegate respondsToSelector:@selector(toolbar:itemForItemIdentifier:)]) {
            item = [self.delegate toolbar:self itemForItemIdentifier:itemIdentifier];
        }
        if (!item) {
            continue;
        }

        [leftView addSubview:item];
        if (leftlastItem) {
            if (i == leftitemIdentifiers.count - 1) {
                [item mas_makeConstraints:^(MASConstraintMaker *make) {
                    make.top.equalTo(@10);
                    make.bottom.equalTo(@(-10));
                    make.left.equalTo(leftlastItem.mas_right).offset(KMToolbarItemSpace);
                    make.right.equalTo(leftView.mas_right).offset(0);
                    
                }];
            } else {
                [item mas_makeConstraints:^(MASConstraintMaker *make) {
                    make.top.equalTo(@10);
                    make.bottom.equalTo(@(-10));
                    make.left.equalTo(leftlastItem.mas_right).offset(KMToolbarItemSpace);
                }];
            }
            
        } else {
            [item mas_makeConstraints:^(MASConstraintMaker *make) {
                make.top.equalTo(@10);
                make.bottom.equalTo(@(-10));
                make.left.equalTo(@20);
            }];
        }
        leftlastItem = item;
    }

    
    NSView *rightView = [[NSView alloc] init];
    [self addSubview:rightView];
    rightView.wantsLayer = YES;
    rightView.layer.backgroundColor = [NSColor colorWithRed:247/255.f green:248/255.f blue:250/255.f alpha:1.f].CGColor;
    [rightView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(self.mas_right).offset(0);
        make.top.equalTo(self.mas_top).offset(0);
        make.bottom.equalTo(self.mas_bottom).offset(0);
    }];
    
    NSArray *rightitemIdentifiers = nil;
    if ([self.delegate respondsToSelector:@selector(toolbarRightDefaultItemIdentifiers:)]) {
        rightitemIdentifiers = [self.delegate toolbarRightDefaultItemIdentifiers:self];
    }
    KMToolBoxItem *rightlastItem = nil;
    for (NSUInteger i=0; i< rightitemIdentifiers.count; i++) {
        NSString *itemIdentifier = rightitemIdentifiers[i];
        if (![itemIdentifier isKindOfClass:[NSString class]]) {
            return;
        }
        KMToolBoxItem *item = nil;
        if ([itemIdentifier isEqualToString:KMToolbarDividerItemIdentifier]) {
            item = [[KMToolBoxItem alloc] initWithItemIdentifier:itemIdentifier postition:KMToolBoxImagePosition_Only withPopMenu:nil];
        } else if ([itemIdentifier isEqualToString:KMNewToolbarSpaceItemIdentifier]) {
            item = [[KMToolBoxItem alloc] initWithItemIdentifier:itemIdentifier postition:KMToolBoxImagePosition_Only withPopMenu:nil];
            item.layer.backgroundColor = [NSColor clearColor].CGColor;
            item.imageViewBox.borderColor = [NSColor clearColor];
            item.layer.cornerRadius = 0.0;
        } else if ([self.delegate respondsToSelector:@selector(toolbar:itemForItemIdentifier:)]) {
            item = [self.delegate toolbar:self itemForItemIdentifier:itemIdentifier];
        }
        if (!item) {
            continue;
        }

        [rightView addSubview:item];
        if (rightlastItem) {
            if (i == rightitemIdentifiers.count - 1) {
                [item mas_makeConstraints:^(MASConstraintMaker *make) {
                    make.top.equalTo(@6);
                    make.bottom.equalTo(@(-6));
                    make.left.equalTo(rightlastItem.mas_right).offset(KMToolbarItemSpace);
                    make.right.equalTo(rightView.mas_right).offset(-20);

                }];
            } else {
                [item mas_makeConstraints:^(MASConstraintMaker *make) {
                    make.top.equalTo(@6);
                    make.bottom.equalTo(@(-6));
                    make.left.equalTo(rightlastItem.mas_right).offset(KMToolbarItemSpace);
                }];
            }

        } else {
            [item mas_makeConstraints:^(MASConstraintMaker *make) {
                make.top.equalTo(@6);
                make.bottom.equalTo(@(-6));
                make.left.equalTo(@0);
            }];
        }
        rightlastItem = item;
    }
    
//    NSView *centerView = [[NSView alloc] init];
//    [self addSubview:centerView];
    
    [centerView mas_makeConstraints:^(MASConstraintMaker *make) {
//        make.right.equalTo(rightView.mas_left).offset(0);
        make.right.mas_equalTo(0);
        make.top.equalTo(self.mas_top).offset(0);
        make.bottom.equalTo(self.mas_bottom).offset(0);
//        make.left.equalTo(leftView.mas_right).offset(0);
        make.left.mas_equalTo(0);
    }];
    
    if(!self.contentView.superview) {
        [centerView addSubview:self.contentView];
        [self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.centerX.equalTo(@0);
            make.centerY.equalTo(@0);
        }];
    }

    for (KMToolBoxItem *item in self.items) {
        [item removeFromSuperview];
    }
    self.items = nil;
    
    CGFloat posX = 0;
    NSMutableArray *items = [NSMutableArray array];
    NSArray *itemIdentifiers = nil;
    if ([self.delegate respondsToSelector:@selector(toolbarDefaultItemIdentifiers:)]) {
        itemIdentifiers = [self.delegate toolbarDefaultItemIdentifiers:self];
    }
    
    KMToolBoxItem *lastItem = nil;
    for (NSUInteger i=0; i< itemIdentifiers.count - self.invisibleItems.count; i++) {
        NSString *itemIdentifier = itemIdentifiers[i];
        if (![itemIdentifier isKindOfClass:[NSString class]]) {
            return;
        }
        KMToolBoxItem *item = nil;
        if ([itemIdentifier isEqualToString:KMToolbarDividerItemIdentifier]) {
            item = [[KMToolBoxItem alloc] initWithItemIdentifier:itemIdentifier postition:KMToolBoxImagePosition_Only withPopMenu:nil];
        } else if ([itemIdentifier isEqualToString:KMNewToolbarSpaceItemIdentifier]) {
            item = [[KMToolBoxItem alloc] initWithItemIdentifier:itemIdentifier postition:KMToolBoxImagePosition_Only withPopMenu:nil];
            item.layer.backgroundColor = [NSColor clearColor].CGColor;
            item.imageViewBox.borderColor = [NSColor clearColor];
            item.layer.cornerRadius = 0.0;
        } else if ([self.delegate respondsToSelector:@selector(toolbar:itemForItemIdentifier:)]) {
            item = [self.delegate toolbar:self itemForItemIdentifier:itemIdentifier];
        }
        if (!item) {
            continue;
        }

        [self.contentView addSubview:item];
        if (lastItem) {
            if (i == itemIdentifiers.count - 1) {
                [item mas_makeConstraints:^(MASConstraintMaker *make) {
                    make.top.bottom.equalTo(@0);
                    make.left.equalTo(lastItem.mas_right).offset(KMToolbarItemSpace);
                    make.right.equalTo(self.contentView.mas_right).offset(0);
                    
                }];
            } else {
                [item mas_makeConstraints:^(MASConstraintMaker *make) {
                    make.top.bottom.equalTo(@0);
                    make.left.equalTo(lastItem.mas_right).offset(KMToolbarItemSpace);
                }];
            }
            
        } else {
            if (item.image) {
                [item mas_makeConstraints:^(MASConstraintMaker *make) {
                    make.top.bottom.equalTo(@0);
                    make.left.equalTo(@0);
                }];
            } else {
                [item mas_makeConstraints:^(MASConstraintMaker *make) {
                    make.top.bottom.equalTo(@0);
                    make.left.equalTo(@0);
                    make.height.offset(40);
                }];
            }
           
        }
        [items addObject:item];
        lastItem = item;
        posX += item.frame.size.width;
    }
    self.items = items;
    
    [self addSubview:self.moreButton];
}

// UI 20 16
// item w 28 h 24
- (void)updateView {
    if(!self.contentView.superview) {
        [self addSubview:self.contentView];
        [self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.centerX.equalTo(@0);
            make.centerY.equalTo(@0);
        }];
    }
    
    for (KMToolBoxItem *item in self.items) {
        [item removeFromSuperview];
    }
    self.items = nil;
    
    CGFloat posX = 0;
    NSMutableArray *items = [NSMutableArray array];
    NSArray *itemIdentifiers = nil;
    if ([self.delegate respondsToSelector:@selector(toolbarDefaultItemIdentifiers:)]) {
        itemIdentifiers = [self.delegate toolbarDefaultItemIdentifiers:self];
    }
    
    KMToolBoxItem *lastItem = nil;
    for (NSUInteger i=0; i< itemIdentifiers.count - self.invisibleItems.count; i++) {
        NSString *itemIdentifier = itemIdentifiers[i];
        if (![itemIdentifier isKindOfClass:[NSString class]]) {
            return;
        }
        KMToolBoxItem *item = nil;
        if ([itemIdentifier isEqualToString:KMToolbarDividerItemIdentifier]) {
            item = [[KMToolBoxItem alloc] initWithItemIdentifier:itemIdentifier postition:KMToolBoxImagePosition_Only withPopMenu:nil];
        } else if ([itemIdentifier isEqualToString:KMNewToolbarSpaceItemIdentifier]) {
            item = [[KMToolBoxItem alloc] initWithItemIdentifier:itemIdentifier postition:KMToolBoxImagePosition_Only withPopMenu:nil];
            item.layer.backgroundColor = [NSColor clearColor].CGColor;
            item.imageViewBox.borderColor = [NSColor clearColor];
            item.layer.cornerRadius = 0.0;
        } else if ([self.delegate respondsToSelector:@selector(toolbar:itemForItemIdentifier:)]) {
            item = [self.delegate toolbar:self itemForItemIdentifier:itemIdentifier];
        }
        if (!item) {
            continue;
        }

        [self.contentView addSubview:item];
        if (lastItem) {
            if (i == itemIdentifiers.count - 1) {
                [item mas_makeConstraints:^(MASConstraintMaker *make) {
                    make.top.bottom.equalTo(@0);
                    make.left.equalTo(lastItem.mas_right).offset(KMToolbarItemSpace);
                    make.right.equalTo(self.contentView.mas_right).offset(0);
                    
                }];
            } else {
                if ([itemIdentifier isEqualToString:KMNewToolbarSpaceItemIdentifier]) {
                    [item mas_makeConstraints:^(MASConstraintMaker *make) {
                        make.top.bottom.equalTo(@0);
                        make.left.equalTo(lastItem.mas_right).offset(2);
                    }];
                } else {
                    if ([lastItem.itemIdentifier isEqualToString:KMNewToolbarSpaceItemIdentifier]) {
                        [item mas_makeConstraints:^(MASConstraintMaker *make) {
                            make.top.bottom.equalTo(@0);
                            make.left.equalTo(lastItem.mas_right).offset(2);
                        }];
                    } else {
                        [item mas_makeConstraints:^(MASConstraintMaker *make) {
                            make.top.bottom.equalTo(@0);
                            make.left.equalTo(lastItem.mas_right).offset(KMToolbarItemSpace);
                        }];
                    }
                }
            }
        } else {
            if (item.image) {
                [item mas_makeConstraints:^(MASConstraintMaker *make) {
                    make.top.bottom.equalTo(@0);
                    make.left.equalTo(@0);
                }];
            } else {
                [item mas_makeConstraints:^(MASConstraintMaker *make) {
                    make.top.bottom.equalTo(@0);
                    make.left.equalTo(@0);
                    make.height.offset(40);
                }];
            }
           
        }
        [items addObject:item];
        lastItem = item;
        posX += item.frame.size.width;
    }
    self.items = items;
    
    [self addSubview:self.moreButton];
}

- (void)updateLayer {
    [super updateLayer];
    self.layer.backgroundColor = NSColor.clearColor.CGColor;
}

#pragma mark - View Methods
- (void)viewWillMoveToWindow:(NSWindow *)newWindow {
    [super viewWillMoveToWindow:newWindow];
    if (newWindow && !_contentView) {
        NSArray *leftitemIdentifiers = nil;
        if ([self.delegate respondsToSelector:@selector(toolbarLeftDefaultItemIdentifiers:)]) {
            leftitemIdentifiers = [self.delegate toolbarLeftDefaultItemIdentifiers:self];
        }
        if (leftitemIdentifiers.count >0) {
            [self updateMainView];
        }else {
            [self updateView];
        }
       
        [self resizeSubviewsWithOldSize:self.frame.size];
//
//        [[NSNotificationCenter defaultCenter] addObserver:self
//                                                 selector:@selector(toolbarCustomChangeNotification:)
//                                                     name:KMToolbarCustomChangeNotification
//                                                   object:nil];
        NSBox *topLine = [[NSBox alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, 0.5)];
        topLine.boxType = NSBoxSeparator;
        topLine.fillColor = NSColor.blackColor;
        [self addSubview:topLine];
        [topLine mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.right.equalTo(self);
            make.bottom.equalTo(self.mas_bottom).offset(-(0.5));
            make.height.offset(0.5);
        }];
        
        NSBox *bottomLine = [[NSBox alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, 0.5)];
        bottomLine.boxType = NSBoxSeparator;
        bottomLine.fillColor = NSColor.blackColor;
        [self addSubview:bottomLine];
        [bottomLine mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.right.equalTo(self);
            make.top.equalTo(self.mas_top).offset(0.1);
            make.height.offset(0.5);
        }];
    };
    
    if (newWindow) {
        [self addTrackingArea];
    }
}

- (void)resizeSubviewsWithOldSize:(NSSize)oldSize
{
    [super resizeSubviewsWithOldSize:oldSize];
    if (!_contentView) {
        return;
    }
    CGFloat moreButtonWidth = 30;
    CGFloat leftButtonWidth = 10;
    NSRect frame = self.contentView.frame;
    __block NSUInteger count = self.items.count;
    [self.items enumerateObjectsWithOptions:NSEnumerationReverse usingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        KMToolBoxItem *item = (KMToolBoxItem *)obj;
        if (CGRectGetMaxX(item.frame) <= self.frame.size.width-moreButtonWidth-leftButtonWidth) {
            count = idx;
            *stop = YES;
        }
    }];
    if (count >= self.items.count) {
        return;
    }
    frame.size.width = CGRectGetMaxX([self.items[count] frame]);
    if (count == self.items.count-1) {
        frame.origin.x = (self.frame.size.width-frame.size.width)/2.0;
        self.moreButton.hidden = YES;
        self.visibleItems = self.items;
        self.invisibleItems = nil;
        [self.contentView mas_remakeConstraints:^(MASConstraintMaker *make) {
            make.centerX.equalTo(@0);
            make.centerY.equalTo(@0);
        }];
    } else {
        frame.origin.x = leftButtonWidth;
//        self.moreButton.frame = NSMakeRect(self.frame.size.width-moreButtonWidth, 0,
//                                           moreButtonWidth, self.frame.size.height);
        [self.moreButton mas_remakeConstraints:^(MASConstraintMaker *make) {
            make.top.bottom.equalTo(@0);
            make.width.offset(moreButtonWidth);
            make.right.equalTo(self.mas_right).offset(0);
        }];
        self.moreButton.hidden = NO;
        self.visibleItems = [self.items subarrayWithRange:NSMakeRange(0, count+1)];
//        self.invisibleItems = [self.items subarrayWithRange:NSMakeRange(count+1, self.items.count-count-1)];
        [self.contentView mas_remakeConstraints:^(MASConstraintMaker *make) {
            make.left.equalTo(self.mas_left).offset(10);
            make.centerY.equalTo(@0);
        }];
    }
    self.invisibleItems = @[].mutableCopy;
    [self.items enumerateObjectsWithOptions:NSEnumerationReverse usingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        KMToolBoxItem *item = (KMToolBoxItem *)obj;
        if (CGRectGetMaxX(item.frame) <= self.frame.size.width-moreButtonWidth-leftButtonWidth) {
            item.hidden = NO;
        }else {
            item.hidden = YES;
            [self.invisibleItems addObject:item];
        }
    }];
}

#pragma mark - Public Methods

- (void)reloadData
{
    NSArray *leftitemIdentifiers = nil;
    if ([self.delegate respondsToSelector:@selector(toolbarLeftDefaultItemIdentifiers:)]) {
        leftitemIdentifiers = [self.delegate toolbarLeftDefaultItemIdentifiers:self];
    }
    if (leftitemIdentifiers.count >0) {
        [self updateMainView];
    }else {
        [self updateView];
    }
    [self resizeSubviewsWithOldSize:self.frame.size];
}

- (KMToolBoxItem *)itemForItemIdentifier:(NSString *)itemIdentifier {
    for (KMToolBoxItem *item in self.items) {
        if ([item.itemIdentifier isEqualToString:itemIdentifier]) {
            return item;
        }
    }
    return nil;
}

@end