#import "WPEditorViewController.h"
#import <MobileCoreServices/MobileCoreServices.h>
#import <UIAlertView+Blocks/UIAlertView+Blocks.h>
#import <UIKit/UIKit.h>
#import <WordPressCom-Analytics-iOS/WPAnalytics.h>
#import <WordPress-iOS-Shared/WordPressShared/WPFontManager.h>
#import <WordPress-iOS-Shared/WordPressShared/WPStyleGuide.h>
#import <WordPress-iOS-Shared/WordPressShared/WPTableViewCell.h>
#import <WordPress-iOS-Shared/WordPressShared/UIImage+Util.h>
#import <WordPress-iOS-Shared/WordPressShared/UIColor+Helpers.h>

#import "WPEditorField.h"
#import "WPEditorToolbarButton.h"
#import "WPEditorToolbarView.h"
#import "WPEditorView.h"
#import "WPImageMeta.h"
#import "ZSSBarButtonItem.h"

#import "DRColorPicker.h"
#import "DRColorPickerHomeViewController.h"

#import <WordPress-iOS-Shared/WordPressShared/WPDeviceIdentification.h>

CGFloat const EPVCStandardOffset = 10.0;
NSInteger const WPImageAlertViewTag = 91;
NSInteger const WPLinkAlertViewTag = 92;

@interface WPEditorViewController () <HRColorPickerViewControllerDelegate, UIAlertViewDelegate, WPEditorToolbarViewDelegate, WPEditorViewDelegate>

@property (nonatomic, strong) NSString *htmlString;
@property (nonatomic, strong) NSArray *editorItemsEnabled;
@property (nonatomic, strong) UIAlertView *alertView;
@property (nonatomic, strong) NSString *selectedImageURL;
@property (nonatomic, strong) NSString *selectedImageAlt;
@property (nonatomic) BOOL didFinishLoadingEditor;
@property (nonatomic, weak) WPEditorField* focusedField;

#pragma mark - Properties: First Setup On View Will Appear
@property (nonatomic, assign, readwrite) BOOL isFirstSetupComplete;

#pragma mark - Properties: Editing
@property (nonatomic, assign, readwrite, getter=isEditingEnabled) BOOL editingEnabled;
@property (nonatomic, assign, readwrite, getter=isEditing) BOOL editing;
@property (nonatomic, assign, readwrite) BOOL wasEditing;

#pragma mark - Properties: Editor View
@property (nonatomic, strong, readwrite) WPEditorView *editorView;

#pragma mark - Properties: Toolbar
@property (nonatomic, strong, readwrite) WPEditorToolbarView* toolbarView;

#pragma colorPicker
@property (nonatomic, strong) DRColorPickerColor* color;
@property (nonatomic, weak) DRColorPickerViewController* colorPickerVC;

@end

@implementation WPEditorViewController

#pragma mark - Initializers

// 这里, 编辑模式, fuck
- (instancetype)init
{
	return [self initWithMode:kWPEditorViewControllerModeEdit];
}

- (instancetype)initWithCoder:(NSCoder *)aDecoder
{
	self = [super initWithCoder:aDecoder];
	
	if (self)
	{
		[self sharedInitializationWithEditing:YES];
	}
	
	return self;
}

- (instancetype)initWithMode:(WPEditorViewControllerMode)mode
{
	self = [super init];
	
	if (self) {
		
		BOOL editing = NO;
		
		if (mode == kWPEditorViewControllerModePreview) {
			editing = NO;
		} else {
			editing = YES;
		}
		
		[self sharedInitializationWithEditing:editing];
	}
	
	return self;
}

// life
- (instancetype)initWithMode:(WPEditorViewControllerMode)mode isMarkdown:(BOOL)isMarkdown
{
	self = [super init];
	
	if (self) {
		
		BOOL editing = NO;
		
		if (mode == kWPEditorViewControllerModePreview) {
			editing = NO;
		} else {
			editing = YES;
		}
		
		[self sharedInitializationWithEditing:editing];
	}
	
	self.isMarkdown = isMarkdown;
	
	return self;
}

#pragma mark - Shared Initialization Code

- (void)sharedInitializationWithEditing:(BOOL)editing
{
	if (editing == kWPEditorViewControllerModePreview) {
		_editing = NO;
	} else {
		_editing = YES;
	}
}

#pragma mark - Creation of subviews

- (void)createToolbarView
{
    NSAssert(!_toolbarView, @"The toolbar view should not exist here.");
    
    CGRect toolbarFrame = CGRectMake(0,
                                     0,
                                     CGRectGetWidth(self.view.frame),
                                     [WPEditorToolbarView height]);
    
    _toolbarView = [[WPEditorToolbarView alloc] initWithFrame:toolbarFrame isMarkdown:self.isMarkdown];
    _toolbarView.delegate = self;
    
    _toolbarView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
    _toolbarView.backgroundColor = [UIColor whiteColor];
    _toolbarView.borderColor = [WPStyleGuide readGrey];
    _toolbarView.itemTintColor = [WPStyleGuide textFieldPlaceholderGrey];
    _toolbarView.selectedItemTintColor = [WPStyleGuide baseDarkerBlue];
    
    _toolbarView.items = [self itemsForToolbar];
}

#pragma mark - UIViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
	
	// It's important to set this up here, in case the main view of the VC is unloaded due to low
	// memory (it can happen if the view is hidden).
	//
	self.isFirstSetupComplete = NO;
	self.didFinishLoadingEditor = NO;
	self.view.backgroundColor = [UIColor whiteColor];
	
	// Calling the fonts we use here so they are availible to the UIWebView
	[WPFontManager merriweatherBoldFontOfSize:30];
	[WPFontManager openSansRegularFontOfSize:16];
	[WPFontManager openSansItalicFontOfSize:16];
	[WPFontManager openSansBoldFontOfSize:16];
	[WPFontManager openSansBoldItalicFontOfSize:16];
	
	// start 之前这段代码是放在viewDidLoad中的, 但frame有问题, 包括了navigation的高度
	
	// 这两处地方不能换啊, 换了有大问题. 如果换了, 当切换到source view 时, 它的input accessory不会显示
	// 创建工具栏
	[self createToolbarView];
	
	// 创建编辑区
	[self buildTextViews];
	
	NSLog(@"frame height viewWillAppear %f", CGRectGetHeight(self.view.frame));
	
	// end
	
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
	
	// 为什么不能放到这里, 好奇怪, 会让按钮的selected失效, 当弹图片后
	// 为什么这么怪?
	// frame height有什么用?
	// 因为viewWillApper 每次都会调用createToolbarView
	
	/*
	// start 之前这段代码是放在viewDidLoad中的, 但frame有问题, 包括了navigation的高度
	
	// 这两处地方不能换啊, 换了有大问题. 如果换了, 当切换到source view 时, 它的input accessory不会显示
	// 创建工具栏
	[self createToolbarView];
	
	// 创建编辑区
	[self buildTextViews];
	
	NSLog(@"frame height viewWillAppear %f", CGRectGetHeight(self.view.frame));
	
	// end
	*/
	
    if (!self.isFirstSetupComplete) {
        self.isFirstSetupComplete = YES;

        // When restoring state, the navigationController is nil when the view loads,
        // so configure its appearance here instead.
        self.navigationController.navigationBar.translucent = NO;
        
        for (UIView *view in self.navigationController.toolbar.subviews) {
            [view setExclusiveTouch:YES];
        }
        
        if (self.isEditing) {
            // [self startEditing];
        }
    }

    [self.navigationController setToolbarHidden:YES animated:animated];
}

-(void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    if (self.isFirstSetupComplete) {
		// 这里, 当图片取消后插入后, 会执行这个
        [self restoreEditSelection];
    }

}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    
    // It's important to save the edit selection before the view disappears, because as soon as it
    // disappears the first responder is changed.
    //
    [self saveEditSelection];
}

#pragma mark - Toolbar items

- (NSMutableArray *)itemsForToolbar
{
    NSMutableArray *items = [[NSMutableArray alloc] init];
	
    if ([self.toolbarView hasSomeEnabledToolbarItems]) {
		if ([self canShowInsertImageBarButton]) {
			[items addObject:[self insertImageBarButton]];
		}
		
		if(self.isMarkdown) {
			[items addObject:[self header1BarButton]];
		}
		
		if ([self canShowBoldBarButton]) {
			[items addObject:[self boldBarButton]];
		}
		
		if ([self canShowItalicBarButton]) {
			[items addObject:[self italicBarButton]];
		}
		
		if ([self canShowSubscriptBarButton]) {
			[items addObject:[self subscriptBarButton]];
		}
		
		if ([self canShowSuperscriptBarButton]) {
			[items addObject:[self superscriptBarButton]];
		}
		
		// strike, color, background-color
		if(!self.isMarkdown) {
//			if ([self canShowUnderlineBarButton]) {
				[items addObject:[self underlineBarButton]];
//			}
			//		if ([self canShowStrikeThroughBarButton]) {
			[items addObject:[self strikeThroughBarButton]];
			//		}
			
			//		if ([self canShowTextColorBarButton]) {
			[items addObject:[self textColorBarButton]];
			//		}
			
			
			//		if ([self canShowBackgroundColorBarButton]) {
			[items addObject:[self backgroundColorBarButton]];
			//		}
			
		}
		
		if (!IS_IPAD && [self canShowBlockQuoteBarButton]) {
			[items addObject:[self blockQuoteBarButton]];
		}
		
		if ([self canShowAlignLeftBarButton]) {
			[items addObject:[self alignLeftBarButton]];
		}
		
		if ([self canShowAlignCenterBarButton]) {
			[items addObject:[self alignCenterBarButton]];
		}
		
		if ([self canShowAlignRightBarButton]) {
			[items addObject:[self alignRightBarButton]];
		}
		
		if ([self canShowAlignFullBarButton]) {
			[items addObject:[self alignFullBarButton]];
		}
		
		if ([self canShowHeader2BarButton]) {
			[items addObject:[self header2BarButton]];
		}
		
		if ([self canShowHeader3BarButton]) {
			[items addObject:[self header3BarButton]];
		}
		
		if ([self canShowHeader4BarButton]) {
			[items addObject:[self header4BarButton]];
		}
		
		if ([self canShowHeader5BarButton]) {
			[items addObject:[self header5BarButton]];
		}
		
		if ([self canShowHeader6BarButton]) {
			[items addObject:[self header6BarButton]];
		}
		
        if (IS_IPAD && [self canShowInsertLinkBarButton]) {
            [items addObject:[self inserLinkBarButton]];
        }
		
		if ([self canShowUnorderedListBarButton]) {
			[items addObject:[self unorderedListBarButton]];
		}
		
		if ([self canShowOrderedListBarButton]) {
			[items addObject:[self orderedListBarButton]];
		}
		
//		if ([self canShowHorizontalRuleBarButton]) {
			[items addObject:[self horizontalRuleBarButton]];
//		}
		
		if ([self canShowIndentBarButton]) {
			[items addObject:[self indentBarButton]];
		}
		
		if ([self canShowOutdentBarButton]) {
			[items addObject:[self outdentBarButton]];
		}
		
		if (!IS_IPAD && [self canShowInsertLinkBarButton]) {
			[items addObject:[self inserLinkBarButton]];
		}
        
        if (IS_IPAD && [self canShowBlockQuoteBarButton]) {
            [items addObject:[self blockQuoteBarButton]];
        }
		
		if ([self canShowRemoveLinkBarButton]) {
			[items addObject:[self removeLinkBarButton]];
		}
		
		if ([self canShowQuickLinkBarButton]) {
			[items addObject:[self quickLinkBarButton]];
		}
		
		if ([self canShowSourceBarButton]) {
//			[items addObject:[self showSourceBarButton]];
		}
		
		if(!self.isMarkdown) {
			[items addObject:[self header1BarButton]];
			[items addObject:[self header2BarButton]];
			[items addObject:[self header3BarButton]];
			[items addObject:[self removeFormatBarButton]];
			[items addObject:[self showSourceBarButton]];
			// undo, redo没用
//			[items addObject:[self undoBarButton]];
//			[items addObject:[self redoBarButton]];
		}
		else {
			[items addObject:[self newlineBarButton]];
		}
	}
		
	return items;
}

#pragma mark - Toolbar: helper methods

- (void)clearToolbar
{
    if (!self.editorView.isInVisualMode) {
        [self.toolbarView clearSelectedToolbarItems];
    }
}

- (BOOL)canShowToolbarOption:(ZSSRichTextEditorToolbar)toolbarOption
{
    return [self.toolbarView canShowToolbarOption:toolbarOption];
}

- (BOOL)canShowAlignLeftBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarJustifyLeft];
}

- (BOOL)canShowAlignCenterBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarJustifyCenter];
}

- (BOOL)canShowAlignFullBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarJustifyFull];
}

- (BOOL)canShowAlignRightBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarJustifyRight];
}

- (BOOL)canShowBackgroundColorBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarBackgroundColor];
}

- (BOOL)canShowBlockQuoteBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarBlockQuote];
}

- (BOOL)canShowBoldBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarBold];
}

- (BOOL)canShowHeader1BarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarH1];
}

- (BOOL)canShowHeader2BarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarH2];
}

- (BOOL)canShowHeader3BarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarH3];
}

- (BOOL)canShowHeader4BarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarH4];
}

- (BOOL)canShowHeader5BarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarH5];
}

- (BOOL)canShowHeader6BarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarH6];
}

- (BOOL)canShowHorizontalRuleBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarHorizontalRule];
}

- (BOOL)canShowIndentBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarIndent];
}

- (BOOL)canShowInsertImageBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarInsertImage];
}

- (BOOL)canShowInsertLinkBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarInsertLink];
}

- (BOOL)canShowItalicBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarItalic];
}

- (BOOL)canShowOrderedListBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarOrderedList];
}

- (BOOL)canShowOutdentBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarOutdent];
}

- (BOOL)canShowQuickLinkBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarQuickLink];
}

- (BOOL)canShowRedoBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarRedo];
}

- (BOOL)canShowRemoveFormatBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarRemoveFormat];
}

- (BOOL)canShowRemoveLinkBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarRemoveLink];
}

- (BOOL)canShowSourceBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarViewSource];
}

- (BOOL)canShowStrikeThroughBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarStrikeThrough];
}

- (BOOL)canShowSubscriptBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarSubscript];
}

- (BOOL)canShowSuperscriptBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarSuperscript];
}

- (BOOL)canShowTextColorBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarTextColor];
}

- (BOOL)canShowUnderlineBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarUnderline];
}

- (BOOL)canShowUndoBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarUndo];
}

- (BOOL)canShowUnorderedListBarButton
{
	return [self canShowToolbarOption:ZSSRichTextEditorToolbarUnorderedList];
}

#pragma mark - Toolbar: buttons

// 这些方法没用啊

- (ZSSBarButtonItem*)barButtonItemWithTag:(WPEditorViewControllerElementTag)tag
							 htmlProperty:(NSString*)htmlProperty
								imageName:(NSString*)imageName
								   target:(id)target
								 selector:(SEL)selector
					   accessibilityLabel:(NSString*)accessibilityLabel
{
    return [self.toolbarView barButtonItemWithTag:tag
                                     htmlProperty:htmlProperty
                                        imageName:imageName
                                           target:target
                                         selector:selector
                               accessibilityLabel:accessibilityLabel];
}

- (ZSSBarButtonItem*)alignLeftBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagJustifyLeftBarButton
													htmlProperty:@"justifyLeft"
													   imageName:@"ZSSleftjustify.png"
														  target:self
														selector:@selector(alignLeft)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)alignCenterBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagJustifyCenterBarButton
													htmlProperty:@"justifyCenter"
													   imageName:@"ZSScenterjustify.png"
														  target:self
														selector:@selector(alignCenter)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)alignFullBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagJustifyFullBarButton
													htmlProperty:@"justifyFull"
													   imageName:@"ZSSforcejustify.png"
														  target:self
														selector:@selector(alignFull)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)alignRightBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagJustifyRightBarButton
													htmlProperty:@"justifyRight"
													   imageName:@"ZSSrightjustify.png"
														  target:self
														selector:@selector(alignRight)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)backgroundColorBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagBackgroundColorBarButton
													htmlProperty:@"backgroundColor"
													   imageName:@"ZSSbgcolor.png"
														  target:self
														selector:@selector(bgColor)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)blockQuoteBarButton
{
	NSString* accessibilityLabel = NSLocalizedString(@"Block Quote",
													 @"Accessibility label for block quote button on formatting toolbar.");
	
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagBlockQuoteBarButton
													htmlProperty:@"blockquote"
													   imageName:@"icon_format_quote"
														  target:self
														selector:@selector(setBlockQuote)
											  accessibilityLabel:accessibilityLabel];
	
	return barButtonItem;
}

- (UIBarButtonItem*)boldBarButton
{
	NSString* accessibilityLabel = NSLocalizedString(@"Bold",
													 @"Accessibility label for bold button on formatting toolbar.");
	
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagBoldBarButton
													htmlProperty:@"bold"
													   imageName:@"icon_format_bold"
														  target:self
														selector:@selector(setBold)
											  accessibilityLabel:accessibilityLabel];
	
	return barButtonItem;
}

- (UIBarButtonItem*)header1BarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagH1BarButton
													htmlProperty:@"h1"
													   imageName: self.isMarkdown ? @"ZSSh.png" : @"ZSSh1.png" // ZSSh1.png
														  target:self
														selector:@selector(heading1)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)header2BarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagH2BarButton
													htmlProperty:@"h2"
													   imageName:@"ZSSh2.png"
														  target:self
														selector:@selector(heading2)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)header3BarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagH3BarButton
													htmlProperty:@"h3"
													   imageName:@"ZSSh3.png"
														  target:self
														selector:@selector(heading3)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)header4BarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagH4BarButton
													htmlProperty:@"h4"
													   imageName:@"ZSSh4.png"
														  target:self
														selector:@selector(heading4)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)header5BarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagH5BarButton
													htmlProperty:@"h5"
													   imageName:@"ZSSh5.png"
														  target:self
														selector:@selector(heading5)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)header6BarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagH6BarButton
													htmlProperty:@"h6"
													   imageName:@"ZSSh6.png"
														  target:self
														selector:@selector(heading6)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}
		
- (UIBarButtonItem*)horizontalRuleBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagHorizontalRuleBarButton
													htmlProperty:@"horizontalRule"
													   imageName:@"ZSShorizontalrule.png"
														  target:self
														selector:@selector(setHR)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)indentBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagIndentBarButton
													htmlProperty:@"indent"
													   imageName:@"ZSSindent.png"
														  target:self
														selector:@selector(setIndent)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)insertImageBarButton
{
	NSString* accessibilityLabel = NSLocalizedString(@"Insert Image",
													 @"Accessibility label for insert image button on formatting toolbar.");
	
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagInsertImageBarButton
													htmlProperty:@"image"
													   imageName:@"icon_format_media"
														  target:self
														selector:@selector(didTouchMediaOptions)
											  accessibilityLabel:accessibilityLabel];
	
	return barButtonItem;
}

- (UIBarButtonItem*)inserLinkBarButton
{
	NSString* accessibilityLabel = NSLocalizedString(@"Insert Link",
													 @"Accessibility label for insert link button on formatting toolbar.");
	
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagInsertLinkBarButton
													htmlProperty:@"link"
													   imageName:@"icon_format_link"
														  target:self
														selector:@selector(linkBarButtonTapped:)
											  accessibilityLabel:accessibilityLabel];
	
	return barButtonItem;
}

- (UIBarButtonItem*)italicBarButton
{
	NSString* accessibilityLabel = NSLocalizedString(@"Italic",
													 @"Accessibility label for italic button on formatting toolbar.");
	
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTagItalicBarButton
													htmlProperty:@"italic"
													   imageName:@"icon_format_italic"
														  target:self
														selector:@selector(setItalic)
											  accessibilityLabel:accessibilityLabel];
	
	return barButtonItem;
}

- (UIBarButtonItem*)orderedListBarButton
{
	NSString* accessibilityLabel = NSLocalizedString(@"Ordered List",
													 @"Accessibility label for ordered list button on formatting toolbar.");;
	
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementOrderedListBarButton
													htmlProperty:@"orderedList"
													   imageName:@"icon_format_ol"
														  target:self
														selector:@selector(setOrderedList)
											  accessibilityLabel:accessibilityLabel];
	
	return barButtonItem;
}

- (UIBarButtonItem*)outdentBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementOutdentBarButton
													htmlProperty:@"outdent"
													   imageName:@"ZSSoutdent.png"
														  target:self
														selector:@selector(setOutdent)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)quickLinkBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementQuickLinkBarButton
													htmlProperty:@"quickLink"
													   imageName:@"ZSSquicklink.png"
														  target:self
														selector:@selector(quickLink)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)redoBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementRedoBarButton
												  htmlProperty:@"redo"
													 imageName:@"ZSSredo.png"
														target:self
														selector:@selector(redo:)
											accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)removeFormatBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementRemoveFormatBarButton
													htmlProperty:@"removeFormat"
													   imageName:@"ZSSclearstyle.png"
														  target:self
														selector:@selector(removeFormat)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)removeLinkBarButton
{
	NSString* accessibilityLabel = NSLocalizedString(@"Remove Link",
													 @"Accessibility label for remove link button on formatting toolbar.");
	
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementRemoveFormatBarButton
													htmlProperty:@"link"
													   imageName:@"icon_format_unlink"
														  target:self
														selector:@selector(removeLink)
											  accessibilityLabel:accessibilityLabel];
	
	return barButtonItem;
}

- (UIBarButtonItem*)showSourceBarButton
{
    NSString* accessibilityLabel = NSLocalizedString(@"HTML",
                                                     @"Accessibility label for HTML button on formatting toolbar.");
    
    ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementShowSourceBarButton
													htmlProperty:@"source"
													   imageName:@"icon_format_html"
														  target:self
														selector:@selector(showHTMLSource:)
											  accessibilityLabel:accessibilityLabel];
	
	return barButtonItem;
}

- (UIBarButtonItem*)strikeThroughBarButton
{
	NSString* accessibilityLabel = NSLocalizedString(@"Strike Through",
													 @"Accessibility label for strikethrough button on formatting toolbar.");
	
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementStrikeThroughBarButton
													htmlProperty:@"strikeThrough"
													   imageName:@"icon_format_strikethrough"
														  target:self
														selector:@selector(setStrikethrough)
											  accessibilityLabel:accessibilityLabel];
	
	return barButtonItem;
}

- (UIBarButtonItem*)subscriptBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementSubscriptBarButton
													htmlProperty:@"subscript"
													   imageName:@"ZSSsubscript.png"
														  target:self
														selector:@selector(setSubscript)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)superscriptBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementSuperscriptBarButton
													htmlProperty:@"superscript"
													   imageName:@"ZSSsuperscript.png"
														  target:self
														selector:@selector(setSuperscript)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)textColorBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementTextColorBarButton
													htmlProperty:@"textColor"
													   imageName:@"ZSStextcolor.png"
														  target:self
														selector:@selector(textColor)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

- (UIBarButtonItem*)underlineBarButton
{
	NSString* accessibilityLabel = NSLocalizedString(@"Underline",
													 @"Accessibility label for underline button on formatting toolbar.");
	
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementUnderlineBarButton
													htmlProperty:@"underline"
													   imageName:@"icon_format_underline"
														  target:self
														selector:@selector(setUnderline)
											  accessibilityLabel:accessibilityLabel];
	
	return barButtonItem;
}

- (UIBarButtonItem*)unorderedListBarButton
{
	NSString* accessibilityLabel = NSLocalizedString(@"Unordered List",
													 @"Accessibility label for unordered list button on formatting toolbar.");
	
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementUnorderedListBarButton
													htmlProperty:@"unorderedList"
													   imageName:@"icon_format_ul"
														  target:self
														selector:@selector(setUnorderedList)
											  accessibilityLabel:accessibilityLabel];
	
	return barButtonItem;
}

- (UIBarButtonItem*)undoBarButton
{
	ZSSBarButtonItem *barButtonItem = [self barButtonItemWithTag:kWPEditorViewControllerElementUndoBarButton
													htmlProperty:@"undo"
													   imageName:@"ZSSundo.png"
														  target:self
														selector:@selector(undo:)
											  accessibilityLabel:nil];
	
	return barButtonItem;
}

// markdown 回车
- (UIBarButtonItem*)newlineBarButton
{
	ZSSBarButtonItem *newlineBarButton = [self barButtonItemWithTag:kWPEditorViewControllerElementEnterBarButton
													htmlProperty:@"enter"
													   imageName:@"enter.png"
														  target:self
														selector:@selector(newline)
											  accessibilityLabel:nil];
	
	return newlineBarButton;
}


#pragma mark - Builders

// 编辑器初始化 WPEditorView

- (void)buildTextViews
{
    if (!self.editorView) {
        CGFloat viewWidth = CGRectGetWidth(self.view.frame);
        UIViewAutoresizing mask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
		
		// 568, 504 怎么搞的
        CGRect frame = CGRectMake(0.0f, 0.0f, viewWidth, CGRectGetHeight(self.view.frame));
        
        self.editorView = [[WPEditorView alloc] initWithFrame:frame isMarkdown:self.isMarkdown];
        self.editorView.delegate = self;
        self.editorView.autoresizesSubviews = YES;
        self.editorView.autoresizingMask = mask;
        self.editorView.backgroundColor = [UIColor whiteColor];
        self.editorView.sourceView.inputAccessoryView = self.toolbarView;
        self.editorView.sourceViewTitleField.inputAccessoryView = self.toolbarView;
		
        // Default placeholder text
        self.titlePlaceholderText = NSLocalizedString(@"Title",  @"Placeholder for the post title.");
        self.bodyPlaceholderText = NSLocalizedString(@"Content", @"Placeholder for the post body.");
    }
	
    [self.view addSubview:self.editorView];
}

#pragma mark - Getters and Setters

- (NSString*)titleText
{    
    return [self.editorView title];
}

- (void)setTitleText:(NSString*)titleText
{
    [self.editorView.titleField setText:titleText];
    [self.editorView.sourceViewTitleField setText:titleText];
}

- (void)setTitlePlaceholderText:(NSString*)titlePlaceholderText
{
    NSParameterAssert(titlePlaceholderText);
    if (![titlePlaceholderText isEqualToString:_titlePlaceholderText]) {
        _titlePlaceholderText = titlePlaceholderText;
        [self.editorView.titleField setPlaceholderText:_titlePlaceholderText];
        self.editorView.sourceViewTitleField.attributedPlaceholder = [[NSAttributedString alloc] initWithString:_titlePlaceholderText
                                                                                                     attributes:@{NSForegroundColorAttributeName: [WPStyleGuide allTAllShadeGrey]}];
    }
}

- (NSString*)bodyText
{
    return [self.editorView contents];
}

- (void)setBodyText:(NSString*)bodyText
{
    [self.editorView.contentField setHtml:bodyText];
}

- (void)setBodyPlaceholderText:(NSString*)bodyPlaceholderText
{
    NSParameterAssert(bodyPlaceholderText);
    if (![bodyPlaceholderText isEqualToString:_bodyPlaceholderText]) {
        _bodyPlaceholderText = bodyPlaceholderText;
        [self.editorView.contentField setPlaceholderText:_bodyPlaceholderText];
    }
}

#pragma mark - Actions

- (void)didTouchMediaOptions
{
    if (self.editorView.isInVisualMode) {
        if ([self.delegate respondsToSelector: @selector(editorDidPressMedia:)]) {
            [self.delegate editorDidPressMedia:self];
        }
    } else {
        // Do not allow users to insert images in HTML mode for now
        __weak __typeof(self)weakSelf = self;
        [UIAlertView showWithTitle:NSLocalizedString(@"Unable to insert image", @"Title of dialog notifing user they cannot insert an image in the editor's HTML mode.")
                           message:NSLocalizedString(@"You cannot insert images while editing HTML directly. Please switch back to visual mode.", @"Body of dialog notifing user they cannot insert an image in the editor's HTML mode.")
                 cancelButtonTitle:NSLocalizedString(@"OK", @"OK")
                 otherButtonTitles:nil
                          tapBlock:^(UIAlertView *alertView, NSInteger buttonIndex) {
                              [weakSelf clearToolbar];
                          }
         ];
    }
    [WPAnalytics track:WPAnalyticsStatEditorTappedImage];
}

#pragma mark - Editor and Misc Methods

- (BOOL)isBodyTextEmpty
{
    if(!self.bodyText
       || self.bodyText.length == 0
       || [[self.bodyText stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] isEqualToString:@""]
       || [[self.bodyText stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] isEqualToString:@"<br>"]
       || [[self.bodyText stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] isEqualToString:@"<br />"]) {
        return YES;
    }
    return NO;
}

#pragma mark - Editing

/**
 *	@brief		Enables editing.
 */
- (void)enableEditing
{
	self.editingEnabled = YES;
	
	if (self.didFinishLoadingEditor)
	{
		[self.editorView enableEditing];
	}
}

/**
 *	@brief		Disables editing.
 */
- (void)disableEditing
{
	self.editingEnabled = NO;
	
	if (self.didFinishLoadingEditor)
	{
		[self.editorView disableEditing];
	}
}

/**
 *  @brief      Restored the previously saved edit selection.
 *  @details    Will only really do anything if editing is enabled.
 */
- (void)restoreEditSelection
{
    if (self.isEditing) {
		// IOS7 大BUG
		// 不是markdown才这样, 因为在markdown下, io7有先focus会把selection去掉, 导致有问题!!!
        if (!self.isMarkdown && [WPDeviceIdentification isiOSVersionEarlierThan8]){
            [self.focusedField blur];
            [self.focusedField focus];
        }
        [self.editorView restoreSelection];
    }
}

/**
 *  @brief      Saves the current edit selection, if any.
 */
- (void)saveEditSelection
{
    if (self.isEditing) {
        if ([WPDeviceIdentification isiOSVersionEarlierThan8]){
            self.focusedField = self.editorView.focusedField;
        }
        [self.editorView saveSelection];
    }
}

- (void)startEditing
{
	self.editing = YES;
	
	// We need the editor ready before executing the steps in the conditional block below.
	// If it's not ready, this method will be called again on webViewDidFinishLoad:
	//
	if (self.didFinishLoadingEditor)
	{
        [self enableEditing];
		[self tellOurDelegateEditingDidBegin];
	}
}

- (void)stopEditing
{
	self.editing = NO;
	
	[self disableEditing];
	[self tellOurDelegateEditingDidEnd];
}

#pragma mark - WPEditorToolbarViewDelegate

- (void)editorToolbarView:(WPEditorToolbarView *)editorToolbarView
           showHTMLSource:(UIBarButtonItem *)barButtonItem
{
    [self showHTMLSource:barButtonItem];
}

#pragma mark - Editor Interaction

- (void)showHTMLSource:(UIBarButtonItem *)barButtonItem
{	
    if ([self.editorView isInVisualMode]) {
        if ([self askOurDelegateShouldDisplaySourceView]) {
            [self.editorView showHTMLSource];
            barButtonItem.tintColor = [self barButtonItemSelectedDefaultColor];
        } else {
            // Deselect the HTML button so it is in the proper state
            [(UIButton *)barButtonItem setSelected:NO];
        }
    } else {
		[self.editorView showVisualEditor];
		
        barButtonItem.tintColor = [self.toolbarView itemTintColor];
    }
    
    // [WPAnalytics track:WPAnalyticsStatEditorTappedHTML];
}

- (void)removeFormat
{
    [self.editorView removeFormat];
}

- (void)alignLeft
{
    [self.editorView alignLeft];
}

- (void)alignCenter
{
    [self.editorView alignCenter];
}

- (void)alignRight
{
    [self.editorView alignRight];
}

- (void)alignFull
{
    [self.editorView alignFull];
}

- (void)setBold
{
    [self.editorView setBold];
    [self clearToolbar];
    [WPAnalytics track:WPAnalyticsStatEditorTappedBold];
}

- (void)setBlockQuote
{
    [self.editorView setBlockQuote];
    [self clearToolbar];
    [WPAnalytics track:WPAnalyticsStatEditorTappedBlockquote];
}

- (void)setItalic
{
    [self.editorView setItalic];
    [self clearToolbar];
    [WPAnalytics track:WPAnalyticsStatEditorTappedItalic];
}

- (void)setSubscript
{
    [self.editorView setSubscript];
}

- (void)setUnderline
{
	[self.editorView setUnderline];
    [self clearToolbar];
    [WPAnalytics track:WPAnalyticsStatEditorTappedUnderline];
}

- (void)setSuperscript
{
	[self.editorView setSuperscript];
}

- (void)setStrikethrough
{
    [self.editorView setStrikethrough];
    [self clearToolbar];
    [WPAnalytics track:WPAnalyticsStatEditorTappedStrikethrough];
}

- (void)setUnorderedList
{
    [self.editorView setUnorderedList];
    [self clearToolbar];
    [WPAnalytics track:WPAnalyticsStatEditorTappedUnorderedList];
}

- (void)setOrderedList
{
    [self.editorView setOrderedList];
    [self clearToolbar];
    [WPAnalytics track:WPAnalyticsStatEditorTappedOrderedList];
}

- (void)setHR
{
    [self.editorView setHR];
}

- (void)setIndent
{
    [self.editorView setIndent];
}

- (void)setOutdent
{
    [self.editorView setOutdent];
}

- (void)heading1
{
	[self.editorView heading1];
}

- (void)heading2
{
    [self.editorView heading2];
}

- (void)heading3
{
    [self.editorView heading3];
}

- (void)heading4
{
	[self.editorView heading4];
}

- (void)heading5
{
	[self.editorView heading5];
}

- (void)heading6
{
	[self.editorView heading6];
}

- (void)newline
{
	[self.editorView newline];
}

- (void)textColor
{
    // Save the selection location
	[self.editorView saveSelection];
	
	[self initColorPicker2:YES];
	
	/*

    // Call the picker
    HRColorPickerViewController *colorPicker = [HRColorPickerViewController cancelableFullColorPickerViewControllerWithColor:[UIColor whiteColor]];
    colorPicker.delegate = self;
    colorPicker.tag = 1;
    colorPicker.title = NSLocalizedString(@"Text Color", nil);
    [self.navigationController pushViewController:colorPicker animated:YES];
	*/
}

- (void)bgColor
{
    // Save the selection location
	[self.editorView saveSelection];
	[self initColorPicker2:NO];
	
	/*
    // Call the picker
    HRColorPickerViewController *colorPicker = [HRColorPickerViewController cancelableFullColorPickerViewControllerWithColor:[UIColor whiteColor]];
    colorPicker.delegate = self;
    colorPicker.tag = 2;
    colorPicker.title = NSLocalizedString(@"BG Color", nil);
    [self.navigationController pushViewController:colorPicker animated:YES];
	*/
}

// 是用modal来的, 但在ios8上, 关闭后不出键盘
- (void) initColorPicker:(BOOL)isTextColor
{
	DRColorPickerBackgroundColor = [UIColor colorWithWhite:1.0f alpha:1.0f];
	
	// border color of the color thumbnails
	DRColorPickerBorderColor = [UIColor colorWithWhite:1.0f alpha:0.1f]; // [UIColor UIColorFromRGBAColorWithRed:238 green:238 blue:238 alpha:1];
	
	DRColorPickerBorderColor = [UIColor UIColorFromRGBAColorWithRed:238 green:238 blue:238 alpha:1];

	// font for any labels in the color picker
	DRColorPickerFont = [UIFont systemFontOfSize:16.0f];
	
	// font color for labels in the color picker
	DRColorPickerLabelColor = [UIColor blackColor];
	// END REQUIRED SETUP
	
	// OPTIONAL SETUP....................
	// max number of colors in the recent and favorites - default is 200
	DRColorPickerStoreMaxColors = 200;
	
	// show a saturation bar in the color wheel view - default is NO
	DRColorPickerShowSaturationBar = YES;
	
	// highlight the last hue in the hue view - default is NO
	DRColorPickerHighlightLastHue = YES;
	
	// use JPEG2000, not PNG which is the default
	// *** WARNING - NEVER CHANGE THIS ONCE YOU RELEASE YOUR APP!!! ***
	DRColorPickerUsePNG = NO;
	
	// JPEG2000 quality default is 0.9, which really reduces the file size but still keeps a nice looking image
	// *** WARNING - NEVER CHANGE THIS ONCE YOU RELEASE YOUR APP!!! ***
	DRColorPickerJPEG2000Quality = 0.9f;
	
	// set to your shared app group to use the same color picker settings with multiple apps and extensions
	DRColorPickerSharedAppGroup = nil;
	// END OPTIONAL SETUP
	
	// create the color picker
	DRColorPickerViewController* vc = [DRColorPickerViewController newColorPickerWithColor:self.color];
	vc.modalPresentationStyle = UIModalPresentationPopover;
	vc.rootViewController.showAlphaSlider = YES; // default is YES, set to NO to hide the alpha slider
	
//	DRColorPickerHomeViewController *vc = [[DRColorPickerHomeViewController alloc] init];
	
	NSInteger theme = 2; // 0 = default, 1 = dark, 2 = light
	
	// in addition to the default images, you can set the images for a light or dark navigation bar / toolbar theme, these are built-in to the color picker bundle
	if (theme == 0)
	{
		// setting these to nil (the default) tells it to use the built-in default images
		vc.rootViewController.addToFavoritesImage = nil;
		vc.rootViewController.favoritesImage = nil;
		vc.rootViewController.hueImage = nil;
		vc.rootViewController.wheelImage = nil;
		vc.rootViewController.importImage = nil;
	}
	else if (theme == 1)
	{
		vc.rootViewController.addToFavoritesImage = DRColorPickerImage(@"images/dark/drcolorpicker-addtofavorites-dark.png");
		vc.rootViewController.favoritesImage = DRColorPickerImage(@"images/dark/drcolorpicker-favorites-dark.png");
		vc.rootViewController.hueImage = DRColorPickerImage(@"images/dark/drcolorpicker-hue-v3-dark.png");
		vc.rootViewController.wheelImage = DRColorPickerImage(@"images/dark/drcolorpicker-wheel-dark.png");
		vc.rootViewController.importImage = DRColorPickerImage(@"images/dark/drcolorpicker-import-dark.png");
	}
	else if (theme == 2)
	{
		vc.rootViewController.addToFavoritesImage = DRColorPickerImage(@"images/light/drcolorpicker-addtofavorites-light.png");
		
//		vc.rootViewController.favoritesImage = DRColorPickerImage(@"images/light/drcolorpicker-favorites-light.png");
		vc.rootViewController.favoritesImage = DRColorPickerImage(@"images/dark/drcolorpicker-favorites-dark.png");
//		vc.rootViewController.hueImage = DRColorPickerImage(@"images/light/drcolorpicker-hue-v3-light.png");
		vc.rootViewController.hueImage = DRColorPickerImage(@"images/dark/drcolorpicker-hue-v3-dark.png");
		vc.rootViewController.wheelImage = DRColorPickerImage(@"images/light/drcolorpicker-wheel-light.png");
//		vc.rootViewController.importImage = DRColorPickerImage(@"images/light/drcolorpicker-import-light.png");
	}
	
	// assign a weak reference to the color picker, need this for UIImagePickerController delegate
	self.colorPickerVC = vc;
	
	// make an import block, this allows using images as colors, this import block uses the UIImagePickerController,
	// but in You Doodle for iOS, I have a more complex import that allows importing from many different sources
	// *** Leave this as nil to not allowing import of textures ***
	vc.rootViewController.importBlock = nil;
	
	// dismiss the color picker
	vc.rootViewController.dismissBlock = ^(BOOL cancel)
	{
		// 如果是点击的Done, 则使用该color
		if(!cancel && self.color.rgbColor) {
			if(isTextColor) {
				[self setSelectedColor:self.color.rgbColor tag:1];
			}
			else {
				[self setSelectedColor:self.color.rgbColor tag:2];
			}
		}
		[self dismissViewControllerAnimated:YES completion:nil];
	};
	
	// 选择颜色
	// a color was selected, do something with it, but do NOT dismiss the color picker, that happens in the dismissBlock
	vc.rootViewController.colorSelectedBlock = ^(DRColorPickerColor* color, DRColorPickerBaseViewController* vc)
	{
		NSLog(@"select color");
		self.color = color;
	};
	
	// finally, present the color picker
	 [self presentViewController:vc animated:YES completion:nil];
//	[self.navigationController pushViewController:vc animated:YES];
	
}


- (void) initColorPicker2:(BOOL)isTextColor
{
	DRColorPickerBackgroundColor = [UIColor colorWithWhite:1.0f alpha:1.0f];
	
	// border color of the color thumbnails
	DRColorPickerBorderColor = [UIColor colorWithWhite:1.0f alpha:0.1f]; // [UIColor UIColorFromRGBAColorWithRed:238 green:238 blue:238 alpha:1];
	
	DRColorPickerBorderColor = [UIColor UIColorFromRGBAColorWithRed:238 green:238 blue:238 alpha:1];
	
	// font for any labels in the color picker
	DRColorPickerFont = [UIFont systemFontOfSize:16.0f];
	
	// font color for labels in the color picker
	DRColorPickerLabelColor = [UIColor blackColor];
	// END REQUIRED SETUP
	
	// OPTIONAL SETUP....................
	// max number of colors in the recent and favorites - default is 200
	DRColorPickerStoreMaxColors = 200;
	
	// show a saturation bar in the color wheel view - default is NO
	DRColorPickerShowSaturationBar = YES;
	
	// highlight the last hue in the hue view - default is NO
	DRColorPickerHighlightLastHue = YES;
	
	// use JPEG2000, not PNG which is the default
	// *** WARNING - NEVER CHANGE THIS ONCE YOU RELEASE YOUR APP!!! ***
	DRColorPickerUsePNG = NO;
	
	// JPEG2000 quality default is 0.9, which really reduces the file size but still keeps a nice looking image
	// *** WARNING - NEVER CHANGE THIS ONCE YOU RELEASE YOUR APP!!! ***
	DRColorPickerJPEG2000Quality = 0.9f;
	
	// set to your shared app group to use the same color picker settings with multiple apps and extensions
	DRColorPickerSharedAppGroup = nil;
	// END OPTIONAL SETUP
	
	// create the color picker
	
	DRColorPickerHomeViewController *vc = [[DRColorPickerHomeViewController alloc] init];
	vc.showAlphaSlider = YES; // default is YES, set to NO to hide the alpha slider
	
	NSInteger theme = 2; // 0 = default, 1 = dark, 2 = light
	
	// in addition to the default images, you can set the images for a light or dark navigation bar / toolbar theme, these are built-in to the color picker bundle
	if (theme == 0)
	{
		// setting these to nil (the default) tells it to use the built-in default images
		vc.addToFavoritesImage = nil;
		vc.favoritesImage = nil;
		vc.hueImage = nil;
		vc.wheelImage = nil;
		vc.importImage = nil;
	}
	else if (theme == 1)
	{
		vc.addToFavoritesImage = DRColorPickerImage(@"images/dark/drcolorpicker-addtofavorites-dark.png");
		vc.favoritesImage = DRColorPickerImage(@"images/dark/drcolorpicker-favorites-dark.png");
		vc.hueImage = DRColorPickerImage(@"images/dark/drcolorpicker-hue-v3-dark.png");
		vc.wheelImage = DRColorPickerImage(@"images/dark/drcolorpicker-wheel-dark.png");
		vc.importImage = DRColorPickerImage(@"images/dark/drcolorpicker-import-dark.png");
	}
	else if (theme == 2)
	{
		vc.addToFavoritesImage = DRColorPickerImage(@"images/light/drcolorpicker-addtofavorites-light.png");
		
		//		vc.rootViewController.favoritesImage = DRColorPickerImage(@"images/light/drcolorpicker-favorites-light.png");
		vc.favoritesImage = DRColorPickerImage(@"images/dark/drcolorpicker-favorites-dark.png");
		//		vc.rootViewController.hueImage = DRColorPickerImage(@"images/light/drcolorpicker-hue-v3-light.png");
		vc.hueImage = DRColorPickerImage(@"images/dark/drcolorpicker-hue-v3-dark.png");
		vc.wheelImage = DRColorPickerImage(@"images/light/drcolorpicker-wheel-light.png");
		//		vc.rootViewController.importImage = DRColorPickerImage(@"images/light/drcolorpicker-import-light.png");
	}
	
	// assign a weak reference to the color picker, need this for UIImagePickerController delegate
//	self.colorPickerVC = vc;
	
	// make an import block, this allows using images as colors, this import block uses the UIImagePickerController,
	// but in You Doodle for iOS, I have a more complex import that allows importing from many different sources
	// *** Leave this as nil to not allowing import of textures ***
	vc.importBlock = nil;
	
	// dismiss the color picker
	vc.dismissBlock = ^(BOOL cancel)
	{
		// 如果是点击的Done, 则使用该color
		if(!cancel && self.color.rgbColor) {
			if(isTextColor) {
				[self setSelectedColor:self.color.rgbColor tag:1];
			}
			else {
				[self setSelectedColor:self.color.rgbColor tag:2];
			}
		}
		[self.navigationController popViewControllerAnimated:YES];
//		[self dismissViewControllerAnimated:YES completion:nil];
	};
	
	// 选择颜色
	// a color was selected, do something with it, but do NOT dismiss the color picker, that happens in the dismissBlock
	vc.colorSelectedBlock = ^(DRColorPickerColor* color, DRColorPickerBaseViewController* vc)
	{
		NSLog(@"select color");
		self.color = color;
	};
	
	// finally, present the color picker
	// [self presentViewController:vc animated:YES completion:nil];
	[self.navigationController pushViewController:vc animated:YES];
}


- (void)setSelectedColor:(UIColor*)color tag:(int)tag
{
    [self.editorView setSelectedColor:color tag:tag];
}

- (void)undo:(ZSSBarButtonItem *)barButtonItem
{
    [self.editorView undo];
}

- (void)redo:(ZSSBarButtonItem *)barButtonItem
{
    [self.editorView redo];
}

- (void)linkBarButtonTapped:(WPEditorToolbarButton*)button
{
	if ([self.editorView isSelectionALink]) {
		[self removeLink];
	} else {
		[self showInsertLinkDialogWithLink:self.editorView.selectedLinkURL
									 title:[self.editorView selectedText]];
//		[WPAnalytics track:WPAnalyticsStatEditorTappedLink];
	}
}

- (void)showInsertLinkDialogWithLink:(NSString*)url
							   title:(NSString*)title
{
    
	BOOL isInsertingNewLink = (url == nil);
	
	if (!url) {
		NSURL* pasteboardUrl = [self urlFromPasteboard];
		
		url = [pasteboardUrl absoluteString];
	}
	
	NSString *insertButtonTitle = isInsertingNewLink ? NSLocalizedString(@"Insert", nil) : NSLocalizedString(@"Update", nil);
	NSString *removeButtonTitle = isInsertingNewLink ? nil : NSLocalizedString(@"Remove Link", nil);
	
	self.alertView = [[UIAlertView alloc] initWithTitle:insertButtonTitle
												message:nil
											   delegate:self
									  cancelButtonTitle:NSLocalizedString(@"Cancel", nil)
									  otherButtonTitles:insertButtonTitle, removeButtonTitle, nil];
	
	// The reason why we're setting a login & password style, is that it's the only style that
	// supports having two edit fields.  We'll customize the password field to behave as we want.
	//
    self.alertView.alertViewStyle = UIAlertViewStyleLoginAndPasswordInput;
    self.alertView.tag = WPLinkAlertViewTag;
	
	UITextField *linkURL = [self.alertView textFieldAtIndex:0];
	
	linkURL.clearButtonMode = UITextFieldViewModeAlways;
	linkURL.placeholder = NSLocalizedString(@"URL", nil);
	
    if (url) {
        linkURL.text = url;
    }
	
	UITextField *linkNameTextField = [self.alertView textFieldAtIndex:1];
	
	linkNameTextField.clearButtonMode = UITextFieldViewModeAlways;
	linkNameTextField.placeholder = NSLocalizedString(@"Link Name", nil);
	linkNameTextField.secureTextEntry = NO;
	linkNameTextField.autocapitalizationType = UITextAutocapitalizationTypeSentences;
	linkNameTextField.autocorrectionType = UITextAutocorrectionTypeDefault;
	linkNameTextField.spellCheckingType = UITextSpellCheckingTypeDefault;
	
	if (title) {
		linkNameTextField.text = title;
	}
	
    __weak __typeof(self) weakSelf = self;

    self.alertView.willPresentBlock = ^(UIAlertView* alertView) {
        // 先保存selection
        [weakSelf.editorView saveSelection];
        [weakSelf.editorView endEditing];
    };
	
	self.alertView.didDismissBlock = ^(UIAlertView *alertView, NSInteger buttonIndex) {
		// 这里, restoreSelection
		[weakSelf.editorView restoreSelection];
		
		if (alertView.tag == WPLinkAlertViewTag) {
			if (buttonIndex == 1) {
				NSString *linkURL = [alertView textFieldAtIndex:0].text;
				NSString *linkTitle = [alertView textFieldAtIndex:1].text;
                
				if ([linkTitle length] == 0) {
					linkTitle = linkURL;
				}
                
				if (isInsertingNewLink) {
					[weakSelf insertLink:linkURL title:linkTitle];
				} else {
					[weakSelf updateLink:linkURL title:linkTitle];
				}
			} else if (buttonIndex == 2) {
				[weakSelf removeLink];
			}
		}
    };
	
    self.alertView.shouldEnableFirstOtherButtonBlock = ^BOOL(UIAlertView *alertView) {
		if (alertView.tag == WPLinkAlertViewTag) {
            UITextField *textField = [alertView textFieldAtIndex:0];
            if ([textField.text length] == 0) {
                return NO;
            }
        }
        return YES;
    };
    
    [self.alertView show];
}

- (void)insertLink:(NSString *)url
			 title:(NSString*)title
{
	[self.editorView insertLink:url title:title];
}

- (void)updateLink:(NSString *)url
			 title:(NSString*)title
{
	[self.editorView updateLink:url title:title];
}

- (void)dismissAlertView
{
    [self.alertView dismissWithClickedButtonIndex:self.alertView.cancelButtonIndex animated:YES];
}

- (void)removeLink
{
    [self.editorView removeLink];
    [WPAnalytics track:WPAnalyticsStatEditorTappedUnlink];
}

- (void)quickLink
{
    [self.editorView quickLink];
}

- (void)insertImage:(NSString *)url alt:(NSString *)alt
{
    [self.editorView insertImage:url alt:alt];
}

- (void)updateImage:(NSString *)url alt:(NSString *)alt
{
    [self.editorView updateImage:url alt:alt];
}

#pragma mark - UIPasteboard interaction

/**
 *	@brief		Returns an URL from the general pasteboard.
 *
 *	@param		The URL or nil if no valid URL is found.
 */
- (NSURL*)urlFromPasteboard
{
	NSURL* url = nil;
	
	UIPasteboard* pasteboard = [UIPasteboard generalPasteboard];
	
	NSString* const kURLPasteboardType = (__bridge NSString*)kUTTypeURL;
	NSString* const kTextPasteboardType = (__bridge NSString*)kUTTypeText;
	
	if ([pasteboard containsPasteboardTypes:@[kURLPasteboardType]]) {
		url = [pasteboard valueForPasteboardType:kURLPasteboardType];
	} else if ([pasteboard containsPasteboardTypes:@[kTextPasteboardType]]) {
		NSString* urlString = [pasteboard valueForPasteboardType:kTextPasteboardType];
		
        url = [self urlFromStringOnlyIfValid:urlString];
	}
	
	return url;
}

/**
 *	@brief		Validates a URL.
 *	@details	The validations we perform here are pretty basic.  But the idea of having this
 *				method is to add any additional checks we want to perform, as we come up with them.
 *
 *	@parameter	url		The URL to validate.  You will usually call [NSURL URLWithString] to create
 *						this URL from a string, before passing it to this method.  Cannot be nil.
 */
- (BOOL)isURLValid:(NSURL*)url
{
    NSParameterAssert([url isKindOfClass:[NSURL class]]);
    
    return url && url.scheme && url.host;
}

/**
 *  @brief      Returns the url from a string only if the final URL is valid.
 *
 *  @param      urlString       The url string to normalize.  Cannot be nil.
 *
 *  @returns    The normalized URL.
 */
- (NSURL*)urlFromStringOnlyIfValid:(NSString*)urlString
{
    NSParameterAssert([urlString isKindOfClass:[NSString class]]);
    
    if ([urlString hasPrefix:@"www"]) {
        urlString = [self.editorView normalizeURL:urlString];
    }
    
    NSURL* prevalidatedUrl = [NSURL URLWithString:urlString];
    NSURL* url = nil;
    
    if (prevalidatedUrl && [self isURLValid:prevalidatedUrl]) {
        url = prevalidatedUrl;
    }
    
    return url;
}

// WPEditorView.h定义的协议

#pragma mark - WPEditorViewDelegate

- (void)editorTextDidChange:(WPEditorView*)editorView
{
	if ([self.delegate respondsToSelector: @selector(editorTextDidChange:)]) {
		[self.delegate editorTextDidChange:self];
	}
}

- (void)editorTitleDidChange:(WPEditorView *)editorView
{
    if ([self.delegate respondsToSelector: @selector(editorTitleDidChange:)]) {
        [self.delegate editorTitleDidChange:self];
    }
}

- (void)editorViewDidFinishLoadingDOM:(WPEditorView*)editorView
{
	// DRM: the reason why we're doing is when the DOM finishes loading, instead of when the full
	// content finishe loading, is that the content may not finish loading at all when the device is
	// offline and the content has remote subcontent (such as pictures).
	//
    self.didFinishLoadingEditor = YES;
    
	if (self.editing) {
		[self startEditing];
	} else {
		[self.editorView disableEditing];
	}
    
    [self tellOurDelegateEditorDidFinishLoadingDOM];
}

- (void)editorView:(WPEditorView*)editorView
      fieldCreated:(WPEditorField*)field
{
	/*
	 UITextFields和UITextView有一个inputAccessoryView的属性，当你想在键盘上展示一个自定义的view时，你就可以设置该属性。你设置的view就会自动和键盘keyboard一起显示了。
	 需要注意的是，你所自定义的view既不应该处在其他的视图层里，也不应该成为其他视图的子视图。其实也就是说，你所自定义的view只需要赋给属性inputAccessoryView就可以了，不要再做其他多余的操作。
	*/
    if (field == self.editorView.titleField) {
        field.inputAccessoryView = self.toolbarView;
		
        [field setRightToLeftTextEnabled:[self isCurrentLanguageDirectionRTL]];
        [field setMultiline:NO];
        [field setPlaceholderColor:[WPStyleGuide allTAllShadeGrey]];
        [field setPlaceholderText:self.titlePlaceholderText];
        self.editorView.sourceViewTitleField.attributedPlaceholder = [[NSAttributedString alloc] initWithString:self.titlePlaceholderText
                                                                                                     attributes:@{NSForegroundColorAttributeName: [WPStyleGuide allTAllShadeGrey]}];
    } else if (field == self.editorView.contentField) {
        field.inputAccessoryView = self.toolbarView;
		
        [field setRightToLeftTextEnabled:[self isCurrentLanguageDirectionRTL]];
        [field setMultiline:YES];
        [field setPlaceholderText:self.bodyPlaceholderText];
        [field setPlaceholderColor:[WPStyleGuide allTAllShadeGrey]];
    }
    
    if ([self.delegate respondsToSelector:@selector(editorViewController:fieldCreated:)]) {
        [self.delegate editorViewController:self fieldCreated:field];
    }
}

// focus field
// enable/disable 工具栏, 都会显示
// WPEditorView调用
- (void)editorView:(WPEditorView*)editorView
      fieldFocused:(WPEditorField*)field
{
    if (field == self.editorView.titleField) {
        [self.toolbarView enableToolbarItems:NO shouldShowSourceButton:YES];
    } else if (field == self.editorView.contentField) {
        [self.toolbarView enableToolbarItems:YES shouldShowSourceButton:YES];
    }
}

- (void)editorView:(WPEditorView*)editorView sourceFieldFocused:(UIView*)view
{
    [self.toolbarView enableToolbarItems:NO shouldShowSourceButton:YES];
    
    // Enable the toolbar if the HTML editor has focus
    if (view == self.editorView.sourceView) {
        [self.toolbarView enableToolbarItems:YES shouldShowSourceButton:YES];
    } else {
        [self.toolbarView enableToolbarItems:NO shouldShowSourceButton:YES];
    }
}

- (BOOL)editorView:(WPEditorView*)editorView
		linkTapped:(NSURL *)url
			 title:(NSString*)title
{
	if (self.isEditing) {
        [self showInsertLinkDialogWithLink:url.absoluteString
                                     title:title];
	}
	else {
		if ([self.delegate respondsToSelector:@selector(editorViewController:linkTapped:)]) {
			[self.delegate editorViewController:self linkTapped:url.absoluteString];
		}
	}
	
	return YES;
}

// 点击图片
- (void)editorView:(WPEditorView*)editorView
       imageTapped:(NSString *)imageId
               url:(NSURL *)url
         imageMeta:(WPImageMeta *)imageMeta
{
    if ([self.delegate respondsToSelector:@selector(editorViewController:imageTapped:url:imageMeta:)]) {
        [self.delegate editorViewController:self imageTapped:imageId url:url imageMeta:imageMeta];
    }
}

- (BOOL)editorView:(WPEditorView*)editorView
       imageTapped:(NSString *)imageId
               url:(NSURL *)url
{
    if ([self.delegate respondsToSelector:@selector(editorViewController:imageTapped:url:)]) {
        [self.delegate editorViewController:self imageTapped:imageId url:url];
    }
    return YES;
}

- (void)editorView:(WPEditorView*)editorView
       videoTapped:(NSString *)videoId
               url:(NSURL *)url
{
    if ([self.delegate respondsToSelector:@selector(editorViewController:videoTapped:url:)]) {
        [self.delegate editorViewController:self videoTapped:videoId url:url];
    }
}

- (void)editorView:(WPEditorView*)editorView
       imageReplaced:(NSString *)imageId
{
    if ([self.delegate respondsToSelector:@selector(editorViewController:imageReplaced:)]) {
        [self.delegate editorViewController:self imageReplaced:imageId];
    }
}

- (void)editorView:(WPEditorView*)editorView
     videoReplaced:(NSString *)videoId
{
    if ([self.delegate respondsToSelector:@selector(editorViewController:videoReplaced:)]) {
        [self.delegate editorViewController:self videoReplaced:videoId];
    }
}

- (void)editorView:(WPEditorView *)editorView videoPressInfoRequest:(NSString *)videoPressID
{
    if ([self.delegate respondsToSelector:@selector(editorViewController:videoPressInfoRequest:)]) {
        [self.delegate editorViewController:self videoPressInfoRequest:videoPressID];
    }

}

- (void)editorView:(WPEditorView *)editorView mediaRemoved:(NSString *)mediaID
{
    if ([self.delegate respondsToSelector:@selector(editorViewController:mediaRemoved:)]) {
        [self.delegate editorViewController:self mediaRemoved:mediaID];
    }
    
}

- (void)editorView:(WPEditorView*)editorView stylesForCurrentSelection:(NSArray*)styles
{
    self.editorItemsEnabled = styles;
	
	[self.toolbarView selectToolbarItemsForStyles:styles];
}


#ifdef DEBUG
-      (void)webView:(UIWebView *)webView
didFailLoadWithError:(NSError *)error
{
	DDLogError(@"Loading error: %@", error);
	NSAssert(NO,
			 @"This should never happen since the editor is a local HTML page of our own making.");
}
#endif

#pragma mark - Asset Picker

- (void)showInsertURLAlternatePicker
{
    // Blank method. User should implement this in their subclass
	NSAssert(NO, @"Blank method. User should implement this in their subclass");
}

- (void)showInsertImageAlternatePicker
{
    // Blank method. User should implement this in their subclass
	NSAssert(NO, @"Blank method. User should implement this in their subclass");
}

#pragma mark - Utilities

- (UIColor *)barButtonItemDefaultColor
{
    if (self.toolbarView.itemTintColor) {
        return self.toolbarView.itemTintColor;
    }
    
    return [WPStyleGuide allTAllShadeGrey];
}

- (UIColor *)barButtonItemSelectedDefaultColor
{
    if (self.toolbarView.selectedItemTintColor) {
        return self.toolbarView.selectedItemTintColor;
    }
    return [WPStyleGuide wordPressBlue];
}

- (BOOL)isCurrentLanguageDirectionRTL
{
    return ([UIApplication sharedApplication].userInterfaceLayoutDirection == UIUserInterfaceLayoutDirectionRightToLeft);
}

#pragma mark - Delegate calls

- (void)tellOurDelegateEditingDidBegin
{
	NSAssert(self.isEditing,
			 @"Can't call this delegate method if not editing.");
	
	if ([self.delegate respondsToSelector: @selector(editorDidBeginEditing:)]) {
		[self.delegate editorDidBeginEditing:self];
	}
}

- (void)tellOurDelegateEditingDidEnd
{
	NSAssert(!self.isEditing,
			 @"Can't call this delegate method if editing.");
	
	if ([self.delegate respondsToSelector: @selector(editorDidEndEditing:)]) {
		[self.delegate editorDidEndEditing:self];
	}
}

- (void)tellOurDelegateEditorDidFinishLoadingDOM
{
    if ([self.delegate respondsToSelector:@selector(editorDidFinishLoadingDOM:)]) {
        [self.delegate editorDidFinishLoadingDOM:self];
    }
}

- (BOOL)askOurDelegateShouldDisplaySourceView
{
    if ([self.delegate respondsToSelector:@selector(editorShouldDisplaySourceView:)]) {
        return [self.delegate editorShouldDisplaySourceView:self];
    }
    return YES;
}

@end