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//
// EGOTextView.h
//
// Created by Devin Doty on 4/18/11.
// Copyright (C) 2011 by enormego.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#import <UIKit/UIKit.h>
#import <CoreText/CoreText.h>
#import <UIKit/UITextChecker.h>
#include <objc/runtime.h>


extern NSString * const EGOTextAttachmentAttributeName;
extern NSString * const EGOTextAttachmentPlaceholderString;

@class EGOTextView;
@protocol EGOTextViewDelegate <NSObject, UIScrollViewDelegate>
@optional

- (BOOL)egoTextViewShouldBeginEditing:(EGOTextView *)textView;
- (BOOL)egoTextViewShouldEndEditing:(EGOTextView *)textView;

- (void)egoTextViewDidBeginEditing:(EGOTextView *)textView;
- (void)egoTextViewDidEndEditing:(EGOTextView *)textView;

- (void)egoTextViewDidChange:(EGOTextView *)textView;

- (void)egoTextViewDidChangeSelection:(EGOTextView *)textView;

- (void)egoTextView:(EGOTextView*)textView didSelectURL:(NSURL*)URL;

@end

@protocol EGOTextAttachmentCell <NSObject>
@optional

// the attachment must either implement -attachmentView or both
// -attachmentSize and -attachmentDrawInRect:
- (UIView *)attachmentView;

- (CGSize) attachmentSize;
- (void) attachmentDrawInRect: (CGRect)r;

@end

@class EGOCaretView, EGOContentView, EGOTextWindow, EGOMagnifyView, EGOSelectionView;
@interface EGOTextView : UIScrollView <UITextInputTraits, UITextInput> {
@private
    NSMutableAttributedString *_mutableAttributedString;
    NSDictionary *_markedTextStyle;
    id <UITextInputDelegate> _inputDelegate;
    UITextInputStringTokenizer *_tokenizer;
    UITextChecker *_textChecker;
    UILongPressGestureRecognizer *_longPress;
    
    BOOL _ignoreSelectionMenu;
    BOOL _delegateRespondsToShouldBeginEditing;
    BOOL _delegateRespondsToShouldEndEditing;
    BOOL _delegateRespondsToDidBeginEditing;
    BOOL _delegateRespondsToDidEndEditing;
    BOOL _delegateRespondsToDidChange;
    BOOL _delegateRespondsToDidChangeSelection;
    BOOL _delegateRespondsToDidSelectURL;
    
    NSAttributedString *_attributedString;
    UIFont *_font;
    BOOL _editing;
    BOOL _editable;
    BOOL _spellCheck;
    BOOL _dataDetectors;
    
    NSRange _markedRange;
    NSRange _selectedRange;
    NSRange _correctionRange;
    NSRange _linkRange;

    CTFramesetterRef _framesetter;
    CTFrameRef _frame;
    
    EGOContentView *_textContentView;
    EGOTextWindow *_textWindow;
    EGOCaretView *_caretView;
    EGOSelectionView *_selectionView;
    
    NSMutableArray *_attachmentViews;
    
}

@property(nonatomic) UIDataDetectorTypes dataDetectorTypes; // UIDataDetectorTypeLink supported
@property(nonatomic) UITextAutocapitalizationType autocapitalizationType;
@property(nonatomic) UITextAutocorrectionType autocorrectionType;
@property(nonatomic) UIKeyboardType keyboardType;
@property(nonatomic) UIKeyboardAppearance keyboardAppearance;
@property(nonatomic) UIReturnKeyType returnKeyType;
@property(nonatomic) BOOL enablesReturnKeyAutomatically;

@property(nonatomic,assign) id <EGOTextViewDelegate> delegate;
@property(nonatomic,copy) NSAttributedString *attributedString;
@property(nonatomic,copy) NSString *text;
@property(nonatomic,retain) UIFont *font; // ignored when attributedString is not nil
@property(nonatomic,getter=isEditable) BOOL editable; //default YES
@property(nonatomic) NSRange selectedRange;
@property(nonatomic) NSRange markedRange;

- (BOOL)hasText;

@end
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