Initial commit

2017-08-15 16:59:01 +08:00
commit bdc83e07ef
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+//
+//  UMComEditTextView.h
+//  UMCommunity
+//
+//  Created by umeng on 15/11/11.
+//  Copyright © 2015年 Umeng. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@class UMComEditTextView;
+
+@protocol UMComEditTextViewDelegate <NSObject>
+
+@optional;
+- (NSArray *)editTextViewDidUpdate:(UMComEditTextView *)textView matchWords:(NSArray *)matchWords;
+
+- (BOOL)editTextView:(UMComEditTextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text complection:(void (^)())block;
+
+- (void)editTextViewDidChangeSelection:(UMComEditTextView *)textView;
+
+- (void)editTextViewDidEndEditing:(UMComEditTextView *)textView;
+
+
+@end
+
+@interface UMComEditTextView : UITextView
+
+@property (nonatomic, weak) id<UMComEditTextViewDelegate> editDelegate;
+
+@property (nonatomic, strong) NSArray *checkWords;
+
+@property (nonatomic, assign) CGFloat maxTextLenght;
+
+@property (nonatomic, strong) UILabel *placeholderLabel;
+
+@property (nonatomic, copy) NSArray * (^getCheckWords)();
+
+- (instancetype)initWithFrame:(CGRect)frame checkWords:(NSArray *)checkWords regularExStrArray:(NSArray *)regularExStrArray;
+
+- (void)updateEditTextView;
+
+- (NSInteger)getRealTextLength;
+
+//判断text是否大于当前控件的最大限制
+-(BOOL)checkMaxLength:(NSString*)text;
+
+
+@end
+
+
+@interface UMComHighLightTextUnit : UIResponder
+/**
+ *  文本单元内容
+ */
+@property (nonatomic,copy  ) NSString *text;
+
+/**
+ *  文本单元字体
+ */
+@property (nonatomic,strong) UIFont   *font;
+
+/**
+ *  文本单元颜色
+ */
+@property (nonatomic,strong) UIColor   *textColor;
+
+/**
+ *  文本单元在字符串中的位置
+ */
+@property (nonatomic,assign) NSRange  range;
+
+ (UMComHighLightTextUnit *)textUnitWithText:(NSString *)text
+                                        font:(UIFont *)font
+                                   textColor:(UIColor *)color
+                                       range:(NSRange)range;
+
+@end
@@ -0,0 +1,421 @@
+//
+//  UMComEditTextView.m
+//  UMCommunity
+//
+//  Created by umeng on 15/11/11.
+//  Copyright © 2015年 Umeng. All rights reserved.
+//
+
+#import "UMComEditTextView.h"
+#import "UMComResouceDefines.h"
+#import <UMComFoundation/UMUtils.h>
+#import "UMComMutiTextRun.h"
+#import <UMComFoundation/UMComKit+String.h>
+#import <UMComFoundation/UMComKit+Color.h>
+
+@interface UMComEditTextView () <UITextViewDelegate>
+
+@property (nonatomic, strong) UILabel *noticeLabel;
+
+@property (nonatomic, strong) NSMutableArray *regularExpressionArray;
+
+@end
+
+@implementation UMComEditTextView
+{
+    BOOL    isShowTopicNoticeBgView;
+}
+
+- (instancetype)initWithFrame:(CGRect)frame
+{
+    self = [self initWithFrame:frame checkWords:nil regularExStrArray:nil];
+    if (self) {
+
+    }
+    return self;
+}
+
+- (instancetype)initWithFrame:(CGRect)frame checkWords:(NSArray *)checkWords regularExStrArray:(NSArray *)regularExStrArray
+{
+    if (UMSYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7")) {
+        
+        NSTextContainer *container = [[NSTextContainer alloc] initWithSize:CGSizeMake(frame.size.width, frame.size.height)];
+        container.lineFragmentPadding = 2;
+        container.size = CGSizeMake(self.frame.size.width, MAXFLOAT);//设置成最大得高度输入多文本滚动
+        container.widthTracksTextView = YES;
+        NSTextStorage *textStorage = [[NSTextStorage alloc]init];
+        NSLayoutManager *layoutManager = [[NSLayoutManager alloc] init];
+        [layoutManager addTextContainer:container];
+        [textStorage addLayoutManager:layoutManager];
+        self = [super initWithFrame:frame textContainer:container];
+        //如果有话题则默认添加话题
+    }else{
+        self = [super initWithFrame:frame];
+    }
+    if (self) {
+        _regularExpressionArray = [NSMutableArray arrayWithCapacity:regularExStrArray.count];
+        for (NSString *regex in regularExStrArray) {
+            NSRegularExpression *regularExpression = [NSRegularExpression
+                                                      regularExpressionWithPattern:regex
+                                                      options:NSRegularExpressionCaseInsensitive
+                                                      error:nil];
+            if (regularExpression) {
+                [_regularExpressionArray addObject:regularExpression];
+            }
+        }
+        self.textColor= [UIColor blackColor];
+        self.font = [UIFont systemFontOfSize:20];
+        self.delegate = self;
+        self.checkWords = checkWords;
+        _noticeLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, self.bounds.size.width, self.bounds.size.height)];
+        //_noticeLabel.backgroundColor = [UIColor clearColor];
+        _noticeLabel.font = UMComFontNotoSansLightWithSafeSize(14);
+        _noticeLabel.text = UMComLocalizedString(@"um_com_contentTooLong", @"抱歉，内容过长");
+        _noticeLabel.textAlignment = NSTextAlignmentCenter;
+        _noticeLabel.textColor = [UIColor blueColor];
+        _noticeLabel.backgroundColor = [UIColor lightGrayColor];
+        _noticeLabel.hidden = YES;
+        [self addSubview:_noticeLabel];
+        _placeholderLabel = [[UILabel alloc]initWithFrame:CGRectMake(5, -5, frame.size.width, 40)];
+        _placeholderLabel.font = UMComFontNotoSansLightWithSafeSize(15);
+        _placeholderLabel.backgroundColor = [UIColor clearColor];
+        _placeholderLabel.textColor = [UIColor grayColor];
+        [self addSubview:_placeholderLabel];
+        
+        _maxTextLenght = 1000;
+    }
+    return self;
+}
+
+- (void)updateEditTextView
+{
+    [self textViewDidChange:self];
+    [self matchWordsWithTextColor:UMComColorWithHexString(FontColorBlue)];
+}
+
+#pragma mark - UITextViewDelegate
+
+- (void)textViewDidChangeSelection:(UITextView *)textView
+{
+    [self showPlaceHolderLabelWithTextView:textView];
+    if (self.editDelegate && [self.editDelegate respondsToSelector:@selector(editTextViewDidChangeSelection:)]) {
+        [self.editDelegate editTextViewDidChangeSelection:self];
+    }
+}
+
+- (BOOL)textViewShouldEndEditing:(UITextView *)textView
+{
+    
+    return YES;
+}
+
+- (void)showPlaceHolderLabelWithTextView:(UITextView *)textView
+{
+    if (textView.text.length > 0 && ![@" " isEqualToString:textView.text]) {
+        self.placeholderLabel.hidden = YES;
+    }else{
+        self.placeholderLabel.hidden = NO;
+    }
+}
+
+- (void)textViewDidEndEditing:(UITextView *)textView
+{
+    if (textView.text.length == 0) {
+        self.placeholderLabel.hidden = NO;
+    }
+    if (UMSYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(@"6")) {
+        [self matchWordsWithTextColor:UMComColorWithHexString(FontColorBlue)];
+    }
+    if (self.editDelegate && [self.editDelegate respondsToSelector:@selector(editTextViewDidEndEditing:)]) {
+        [self.editDelegate editTextViewDidEndEditing:self];
+    }
+}
+
+- (void)hiddenTextView
+{
+    self.noticeLabel.hidden = YES;
+}
+
+-(void) doShowPlaceHolderLabel
+{
+    self.noticeLabel.hidden = NO;
+    //显示noticeLabel的位置
+    self.noticeLabel.frame = CGRectMake(self.contentOffset.x,self.contentOffset.y, self.bounds.size.width, self.bounds.size.height);
+    [self performSelector:@selector(hiddenTextView) withObject:nil afterDelay:0.8f];
+}
+
+- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
+{
+    //判断text的长度大于零，避免删除的情况不能编辑
+    //if ([self getRealTextLength] > self.maxTextLenght && text.length > 0) {
+    if (self.maxTextLenght <= 0) {
+        return NO;
+    }
+    
+    //当时删除的时候text为空,以此方法判断是否用户点击删除按键
+    if ([text isEqualToString:@""]) {
+        return YES;
+    }
+
+    NSInteger markLength = 0;//标记的长度
+    UITextRange* curMarkText = textView.markedTextRange;
+    if (curMarkText) {
+        markLength = [self offsetFromPosition:curMarkText.start toPosition:curMarkText.end];
+    }
+    
+    NSInteger curLength = 0.f;
+    NSInteger nextLength = 0.f;
+    curLength = [UMComKit getStringLengthWithString:self.text];//当前长度(用于判断表情)
+    nextLength = [UMComKit getStringLengthWithString:text];//即将要输入的长度(用于判断表情)
+    curLength -= markLength;
+    if (curLength +  nextLength > self.maxTextLenght ) {
+        self.noticeLabel.hidden = NO;
+        //显示noticeLabel的位置
+        self.noticeLabel.frame = CGRectMake(self.contentOffset.x,self.contentOffset.y, self.bounds.size.width, self.bounds.size.height);
+        [self performSelector:@selector(hiddenTextView) withObject:nil afterDelay:0.8f];
+        return NO;
+    }else{
+        self.noticeLabel.hidden = YES;
+    }
+    if (self.editDelegate && [self.editDelegate respondsToSelector:@selector(editTextView:shouldChangeTextInRange:replacementText:complection:)]) {
+        __weak typeof(self) weakSelf = self;
+        return [self.editDelegate editTextView:self shouldChangeTextInRange:range replacementText:text complection:^{
+            [weakSelf textViewDidChange:weakSelf];
+
+        }];
+    }
+    return YES;
+}
+
+
+- (void)textViewDidChange:(UITextView *)textView
+{
+    if (UMSYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7")) {
+        [self matchWordsWithTextColor:UMComColorWithHexString(FontColorBlue)];
+    }
+    [self showPlaceHolderLabelWithTextView:textView];
+    
+    
+    //http://stackoverflow.com/questions/19948394/textviewdidchange-crashes-in-ios-7
+    if (textView.markedTextRange) {
+        //联想输入的时候，不需要计算其长度
+        return;
+    }
+    
+    //此处判断是否达到最大长度限制
+    NSInteger curLength = [UMComKit getStringLengthWithString:self.text];//当前长度(用于判断表情)
+    if (curLength > self.maxTextLenght && self.maxTextLenght > 0) {
+        [self doShowPlaceHolderLabel];
+        self.text = [self.text substringToIndex:self.maxTextLenght];
+    }
+}
+
+
+#pragma mark - textUpdata
+
+- (void)matchWordsWithTextColor:(UIColor *)color
+{
+    if (self.text.length == 0) {
+        return;
+    }
+    if (self.getCheckWords) {
+        self.checkWords = self.getCheckWords();
+    }
+    __weak typeof(self) weakSelf = self;
+    if (UMSYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7")) {
+        [self updateiOS7AndLaterTextWithColor:color checkWords:self.checkWords completion:^(NSArray *matchWords) {
+            if (weakSelf.editDelegate && [weakSelf.editDelegate respondsToSelector:@selector(editTextViewDidUpdate:matchWords:)]) {
+                weakSelf.checkWords = [weakSelf.editDelegate editTextViewDidUpdate:weakSelf matchWords:[matchWords valueForKeyPath:@"text"]];
+            }
+        }];
+    }else{
+        [self creatHighLightWithFont:self.font color:color checkWords:self.checkWords complection:^(NSArray * matchWords, NSMutableAttributedString *attributedString) {
+            if (self.editDelegate && [self.editDelegate respondsToSelector:@selector(editTextViewDidUpdate:matchWords:)]) {
+                [self.editDelegate editTextViewDidUpdate:weakSelf matchWords:[matchWords valueForKeyPath:@"text"]];
+            }
+            weakSelf.attributedText = attributedString;
+        }];
+    }
+    [self reloadInputViews];
+}
+
+
+- (NSArray *)rangeArrayOfSubString:(NSString *)subString originStrin:(NSString *)originString lastRangeArray:(NSArray *)lastRangeArray
+{
+    if (originString.length >= subString.length) {
+        NSMutableArray *rangeArray = [NSMutableArray array];
+
+        if (lastRangeArray.count > 0) {
+            [rangeArray addObjectsFromArray:lastRangeArray];
+        }
+        NSRange macthRange = [originString rangeOfString:subString];
+        if (macthRange.length > 0) {
+            NSValue *rangeValue = [NSValue valueWithRange:macthRange];
+            [rangeArray addObject:rangeValue];
+            [self rangeArrayOfSubString:subString originStrin:[originString substringFromIndex:macthRange.length - 1] lastRangeArray:rangeArray];
+        }
+        return rangeArray;
+    }
+
+    return lastRangeArray;
+}
+
+- (void)updateiOS7AndLaterTextWithColor:(UIColor *)color
+                             checkWords:(NSArray *)checkWords
+                             completion:(void (^) (NSArray *matchWords))block
+{
+    [self.textStorage addAttribute:NSForegroundColorAttributeName value:[UIColor blackColor] range:NSMakeRange(0, self.textStorage.length)];
+    NSMutableArray *HLTextUnits = [NSMutableArray array];
+    
+    for (NSString *checkWord in checkWords) {
+        NSRegularExpression *regular = [NSRegularExpression regularExpressionWithPattern:checkWord options:NSRegularExpressionDotMatchesLineSeparators error:nil];
+        NSArray *matchs = [regular matchesInString:self.textStorage.string
+                                                              options:0
+                                                                range:NSMakeRange(0, [self.textStorage.string length])];
+        for (NSTextCheckingResult *match in matchs) {
+            [self.textStorage addAttribute:NSForegroundColorAttributeName value:color range:match.range];
+            if (![[HLTextUnits valueForKeyPath:@"text"] containsObject:checkWord]) {
+                UMComHighLightTextUnit *textUnit = [UMComHighLightTextUnit textUnitWithText:checkWord font:self.font textColor:color range:match.range];
+                [HLTextUnits addObject:textUnit];
+            }
+        }
+    }
+    if (block) {
+        block(HLTextUnits);
+    }
+}
+
+
+
+//产生高亮字体
+- (void)creatHighLightWithFont:(UIFont *)font color:(UIColor *)color checkWords:(NSArray *)checkWords complection:(void(^)(NSArray *checkWords ,NSMutableAttributedString *attributedString))block
+{
+    if (self.text.length == 0) {
+        return;
+    }
+    NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc]initWithString:self.text];
+    self.attributedText = attributedString;
+    [attributedString addAttribute:NSForegroundColorAttributeName value:(id)[UIColor blackColor] range:NSMakeRange(0, attributedString.length-1)];
+
+    NSString *string = attributedString.string;
+    NSMutableArray *HLTextUnits = [NSMutableArray array];
+    for (NSRegularExpression *regularExpression in _regularExpressionArray) {
+        NSArray *matchs = [regularExpression matchesInString:string options:0 range:NSMakeRange(0, string.length)];
+        if ([regularExpression.pattern isEqualToString:UrlRelerSring]) {
+            for (NSTextCheckingResult *match in matchs)
+            {
+                NSString* matchText = [self.textStorage.string substringWithRange:match.range];
+                [attributedString addAttribute:(id)NSForegroundColorAttributeName value:(id)color range:match.range];
+                if (![[HLTextUnits valueForKeyPath:@"text"] containsObject:matchText]) {
+                    UMComHighLightTextUnit *textUnit = [UMComHighLightTextUnit textUnitWithText:matchText font:self.font textColor:color range:match.range];
+                    [HLTextUnits addObject:textUnit];
+                }
+            }
+        }else{
+            for (NSTextCheckingResult *match in matchs)
+            {
+                NSRange matchRange = NSMakeRange(match.range.location, match.range.length);
+                NSString *matchText = [string substringWithRange:matchRange];
+                
+                for (NSString *checkWord in checkWords) {
+                    if ([matchText isEqualToString:checkWord]) {
+                        [attributedString addAttribute:(id)NSForegroundColorAttributeName value:(id)color range:match.range];
+                        if (![[HLTextUnits valueForKeyPath:@"text"] containsObject:matchText]) {
+                            UMComHighLightTextUnit *textUnit = [UMComHighLightTextUnit textUnitWithText:matchText font:self.font textColor:color range:match.range];
+                            [HLTextUnits addObject:textUnit];
+                            
+                        }
+                    }
+                }
+            }
+        }
+    }
+    [attributedString addAttribute:NSFontAttributeName value:(id)font range:NSMakeRange(0, attributedString.length)];
+    if (block) {
+        block(HLTextUnits, attributedString);
+    }
+}
+
+
+- (NSInteger)getRealTextLength
+{
+    NSInteger topicAndUserLength = 0;
+    NSMutableArray *matchs = [NSMutableArray array];
+    for (NSRegularExpression *regularExpression in _regularExpressionArray) {
+        NSArray *subMatchs = [regularExpression matchesInString:self.text options:0 range:NSMakeRange(0, self.text.length)];
+        if (subMatchs.count > 0) {
+            [matchs addObjectsFromArray:subMatchs];
+        }
+    }
+    NSArray *checkWords = self.checkWords;
+    for (NSTextCheckingResult *match in matchs)
+    {
+        for (NSString *item in checkWords) {
+            NSRange matchRange = NSMakeRange(match.range.location, match.range.length);
+            NSString *matchText = [self.text substringWithRange:matchRange];
+            if ([item isEqualToString:matchText]) {
+                topicAndUserLength += [UMComKit getStringLengthWithString:matchText];
+            }
+        }
+    }
+    NSString *realTextString = [self.text stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
+    NSInteger realTextLength = [UMComKit getStringLengthWithString:realTextString] - topicAndUserLength;
+    return realTextLength;
+}
+
+/*
+// Only override drawRect: if you perform custom drawing.
+// An empty implementation adversely affects performance during animation.
+- (void)drawRect:(CGRect)rect {
+    // Drawing code
+}
+*/
+
+-(BOOL)checkMaxLength:(NSString*)text
+{
+    if (!text) {
+        return NO;
+    }
+    NSInteger curLength = [UMComKit getStringLengthWithString:text];
+    if (curLength> self.maxTextLenght ) {
+        self.noticeLabel.hidden = NO;
+        //显示noticeLabel的位置
+        self.noticeLabel.frame = CGRectMake(self.contentOffset.x,self.contentOffset.y, self.bounds.size.width, self.bounds.size.height);
+        [self performSelector:@selector(hiddenTextView) withObject:nil afterDelay:0.8f];
+        return YES;
+    }
+    else{
+        return NO;
+    }
+}
+
+@end
+
+
+@implementation UMComHighLightTextUnit
+
+- (instancetype)initWithTextUnitWithText:(NSString *)text
+                                    font:(UIFont *)font
+                               textColor:(UIColor *)color
+                                   range:(NSRange)range
+{
+    self = [super init];
+    if (self) {
+        self.text = text;
+        self.textColor = color;
+        self.font = font;
+        self.range = range;
+    }
+    return self;
+}
+
+ (UMComHighLightTextUnit *)textUnitWithText:(NSString *)text
+                                        font:(UIFont *)font
+                                   textColor:(UIColor *)color
+                                       range:(NSRange)range
+{
+    UMComHighLightTextUnit *textUnit = [[UMComHighLightTextUnit alloc]initWithTextUnitWithText:text font:font textColor:color range:range];
+    return textUnit;
+}
+
+@end