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TUIKit/TUIChat/UI_Classic/Cell/Base/TUIGroupCreatedCell.h

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+
+//  Created by Tencent on 2023/06/09.
+//  Copyright © 2023 Tencent. All rights reserved.
+/**
+ *  This document declares that after the group is successfully created, the "xxx create group chat" message cell displayed when jumping to the message
+ * interface
+ */
+
+#import <TIMCommon/TUISystemMessageCell.h>
+#import "TUIGroupCreatedCellData.h"
+
+@interface TUIGroupCreatedCell : TUISystemMessageCell
+
+- (void)fillWithData:(TUIGroupCreatedCellData *)data;
+
+@end

TUIKit/TUIChat/UI_Classic/Cell/Base/TUIGroupCreatedCell.m

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+//
+//  MyCustomCell.m
+//  TUIKitDemo
+//
+//  Created by annidyfeng on 2019/6/10.
+//  Copyright © 2019 Tencent. All rights reserved.
+//
+
+#import "TUIGroupCreatedCell.h"
+
+@implementation TUIGroupCreatedCell
+
+- (void)fillWithData:(TUIGroupCreatedCellData *)data {
+    [super fillWithData:data];
+}
+
+@end

TUIKit/TUIChat/UI_Classic/Cell/Base/TUIInputMoreCell.h

@@ -0,0 +1,48 @@
+
+//  Created by Tencent on 2023/06/09.
+//  Copyright © 2023 Tencent. All rights reserved.
+/**
+ *
+ *
+ * This document declares modules for implementing "more" units.
+ * More units, that is, the UI interface that appears after clicking the "+" in the lower right corner of the chat interface.
+ * At present, more units provide four multimedia sending functions of camera, video, picture, and file, and you can also customize it according to your needs.
+ */
+
+#import <UIKit/UIKit.h>
+#import "TUIInputMoreCellData.h"
+
+/////////////////////////////////////////////////////////////////////////////////
+//
+//                            TUIInputMoreCell
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+@interface TUIInputMoreCell : UICollectionViewCell
+
+/**
+ *  The icons corresponding to more cells are obtained from the image of TUIInputMoreCellData.
+ *  The icons of each unit are different, which are used to visually represent the corresponding functions of the unit.
+ */
+@property(nonatomic, strong) UIImageView *image;
+
+/**
+ *  The label corresponding to more cells, the text content of which is obtained from the title of TUIInputMoreCellData.
+ *  The names of each unit are different (such as camera, video, file, album, etc.), which are used to display the corresponding functions of the unit in text
+ * form below the icon.
+ */
+@property(nonatomic, strong) UILabel *title;
+
+@property(nonatomic, strong) TUIInputMoreCellData *data;
+
+/**
+ * Whether to disable the default selection behavior encapsulated in TUIKit, such as group live broadcast by default to create live room and other behaviors,
+ * default: NO
+ */
+@property(nonatomic, assign) BOOL disableDefaultSelectAction;
+
+- (void)fillWithData:(TUIInputMoreCellData *)data;
+
++ (CGSize)getSize;
+
+@end

TUIKit/TUIChat/UI_Classic/Cell/Base/TUIInputMoreCell.m

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+//
+//  TMoreCell.m
+//  UIKit
+//
+//  Created by annidyfeng on 2019/5/22.
+//  Copyright © 2023 Tencent. All rights reserved.
+//
+
+#import "TUIInputMoreCell.h"
+#import <TIMCommon/TIMDefine.h>
+
+@implementation TUIInputMoreCell
+
+- (id)initWithFrame:(CGRect)frame {
+    self = [super initWithFrame:frame];
+    if (self) {
+        [self setupViews];
+    }
+    return self;
+}
+
+- (void)setupViews {
+    _image = [[UIImageView alloc] init];
+    _image.contentMode = UIViewContentModeScaleAspectFit;
+    [self addSubview:_image];
+
+    _title = [[UILabel alloc] init];
+    [_title setFont:[UIFont systemFontOfSize:10]];
+    [_title setTextColor:[UIColor grayColor]];
+    _title.textAlignment = NSTextAlignmentCenter;
+    [self addSubview:_title];
+}
+
+- (void)fillWithData:(TUIInputMoreCellData *)data {
+    // set data
+    _data = data;
+    self.hidden = (data == nil) ? YES : NO;
+    _image.image = data.image;
+    [_title setText:data.title];
+    // update layout
+    CGSize menuSize = TMoreCell_Image_Size;
+    _image.frame = CGRectMake(0, 0, menuSize.width, menuSize.height);
+    _title.frame = CGRectMake(0, _image.frame.origin.y + _image.frame.size.height, _image.frame.size.width + 10, TMoreCell_Title_Height);
+    _title.center = CGPointMake(_image.center.x, _title.center.y);
+}
+
++ (CGSize)getSize {
+    CGSize menuSize = TMoreCell_Image_Size;
+    return CGSizeMake(menuSize.width, menuSize.height + TMoreCell_Title_Height);
+}
+@end
+
+@interface IUChatView : UIView
+@property(nonatomic, strong) UIView *view;
+@end
+
+@implementation IUChatView
+
+- (instancetype)init {
+    self = [super init];
+    if (self) {
+        self.view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 10)];
+        [self addSubview:self.view];
+    }
+    return self;
+}
+@end

TUIKit/TUIChat/UI_Classic/Cell/Base/TUIMemberCell.h

@@ -0,0 +1,16 @@
+
+//  Created by Tencent on 2023/06/09.
+//  Copyright © 2023 Tencent. All rights reserved.
+
+#import <TIMCommon/TIMCommonModel.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class TUIMemberCellData;
+@interface TUIMemberCell : TUICommonTableViewCell
+
+- (void)fillWithData:(TUIMemberCellData *)cellData;
+
+@end
+
+NS_ASSUME_NONNULL_END

TUIKit/TUIChat/UI_Classic/Cell/Base/TUIMemberCell.m

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+//
+//  TUIMemberCell.m
+//  TUIChat
+//
+//  Created by xia on 2022/3/11.
+//  Copyright © 2023 Tencent. All rights reserved.
+//
+
+#import "TUIMemberCell.h"
+#import <TIMCommon/TIMCommonModel.h>
+#import <TIMCommon/TIMDefine.h>
+#import <TUICore/TUIThemeManager.h>
+#import "TUIMemberCellData.h"
+
+@interface TUIMemberCell ()
+
+@property(nonatomic, strong) UIImageView *avatarView;
+@property(nonatomic, strong) UILabel *titleLabel;
+@property(nonatomic, strong) UILabel *detailLabel;
+@property(nonatomic, strong) TUIMemberCellData *cellData;
+
+@end
+
+@implementation TUIMemberCell
+
+#pragma mark - Life cycle
+- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
+    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
+    if (self) {
+        self.contentView.backgroundColor = TIMCommonDynamicColor(@"form_bg_color", @"#FFFFFF");
+
+        self.avatarView = [[UIImageView alloc] initWithImage:DefaultAvatarImage];
+        [self.contentView addSubview:self.avatarView];
+
+        self.titleLabel = [[UILabel alloc] initWithFrame:CGRectZero];
+        [self.contentView addSubview:self.titleLabel];
+        self.titleLabel.textColor = TIMCommonDynamicColor(@"form_title_color", @"#000000");
+
+        self.detailLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 100, 20)];
+        [self.contentView addSubview:self.detailLabel];
+        self.detailLabel.rtlAlignment = TUITextRTLAlignmentTrailing;
+        self.detailLabel.textColor = TIMCommonDynamicColor(@"form_title_color", @"#000000");
+
+        [self setSelectionStyle:UITableViewCellSelectionStyleNone];
+
+        self.changeColorWhenTouched = YES;
+    }
+    return self;
+}
+
+- (void)layoutSubviews {
+    [super layoutSubviews];
+}
+
+#pragma mark - Public
+- (void)fillWithData:(TUIMemberCellData *)cellData {
+    [super fillWithData:cellData];
+    self.cellData = cellData;
+
+    self.titleLabel.text = cellData.title;
+    [self.avatarView sd_setImageWithURL:cellData.avatarUrL placeholderImage:DefaultAvatarImage];
+    self.detailLabel.hidden = cellData.detail.length == 0;
+    self.detailLabel.text = cellData.detail;
+    
+    // tell constraints they need updating
+    [self setNeedsUpdateConstraints];
+
+    // update constraints now so we can animate the change
+    [self updateConstraintsIfNeeded];
+
+    [self layoutIfNeeded];
+}
+
++ (BOOL)requiresConstraintBasedLayout {
+    return YES;
+}
+
+// this is Apple's recommended place for adding/updating constraints
+- (void)updateConstraints {
+     
+    [super updateConstraints];
+    
+    CGFloat imgWidth = kScale390(34);
+
+    [self.avatarView mas_remakeConstraints:^(MASConstraintMaker *make) {
+        make.width.height.mas_equalTo(imgWidth);
+        make.centerY.mas_equalTo(self.contentView.mas_centerY);
+        make.leading.mas_equalTo(kScale390(12));
+    }];
+    if ([TUIConfig defaultConfig].avatarType == TAvatarTypeRounded) {
+        self.avatarView.layer.masksToBounds = YES;
+        self.avatarView.layer.cornerRadius = imgWidth / 2;
+    } else if ([TUIConfig defaultConfig].avatarType == TAvatarTypeRadiusCorner) {
+        self.avatarView.layer.masksToBounds = YES;
+        self.avatarView.layer.cornerRadius = [TUIConfig defaultConfig].avatarCornerRadius;
+    }
+
+    [self.titleLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
+        make.centerY.mas_equalTo(self.avatarView.mas_centerY);
+        make.leading.mas_equalTo(self.avatarView.mas_trailing).mas_offset(12);
+        make.height.mas_equalTo(20);
+        make.trailing.lessThanOrEqualTo(self.detailLabel.mas_leading).mas_offset(-5);
+    }];
+
+    [self.detailLabel sizeToFit];
+    [self.detailLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
+        make.centerY.mas_equalTo(self.avatarView.mas_centerY);
+        make.height.mas_equalTo(20);
+        make.trailing.mas_equalTo(self.contentView.mas_trailing).mas_offset(-3);
+        make.width.mas_equalTo(self.detailLabel.frame.size.width);
+    }];
+    
+
+}
+@end

TUIKit/TUIChat/UI_Classic/Cell/Base/TUITextMessageCell.h

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+
+//  Created by Tencent on 2023/06/09.
+//  Copyright © 2023 Tencent. All rights reserved.
+#import <TIMCommon/TUIBubbleMessageCell.h>
+#import <TIMCommon/TUITextView.h>
+#import "TUIChatDefine.h"
+#import "TUITextMessageCellData.h"
+
+@class TUITextView;
+
+typedef void (^TUIChatSelectAllContentCallback)(BOOL);
+
+@interface TUITextMessageCell : TUIBubbleMessageCell <UITextViewDelegate>
+
+/**
+ *  
+ *  TextView for display text message content
+ */
+@property(nonatomic, strong) TUITextView *textView;
+
+/**
+ *  
+ *  Selected text content
+ */
+@property(nonatomic, strong) NSString *selectContent;
+
+/**
+ *  
+ *  Callback for selected all text
+ */
+@property(nonatomic, strong) TUIChatSelectAllContentCallback selectAllContentContent;
+
+/// Data for text message cell.
+@property(nonatomic, strong) TUITextMessageCellData *textData;
+
+@property(nonatomic, strong) UIImageView *voiceReadPoint;
+
+- (void)fillWithData:(TUITextMessageCellData *)data;
+
+@end
+
+
+@interface TUITextMessageCell (TUILayoutConfiguration)
+
+/**
+ *
+ *  The color of label which displays the text message content.
+ *  Used when the message direction is send.
+ */
+@property(nonatomic, class) UIColor *outgoingTextColor;
+
+/**
+ *
+ *  The font of label which displays the text message content.
+ *  Used when the message direction is send.
+ */
+@property(nonatomic, class) UIFont *outgoingTextFont;
+
+/**
+ *
+ *  The color of label which displays the text message content.
+ *  Used when the message direction is received.
+ */
+@property(nonatomic, class) UIColor *incommingTextColor;
+
+/**
+ *
+ *  The font of label which displays the text message content.
+ *  Used when the message direction is received.
+ */
+@property(nonatomic, class) UIFont *incommingTextFont;
+
++ (void)setMaxTextSize:(CGSize)maxTextSz;
+
+@end

TUIKit/TUIChat/UI_Classic/Cell/Base/TUITextMessageCell.m

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+//
+//  TUITextMessageCell.m
+//  UIKit
+//
+//  Created by annidyfeng on 2019/5/30.
+//  Copyright © 2023 Tencent. All rights reserved.
+//
+
+#import "TUITextMessageCell.h"
+#import <TIMCommon/TIMCommonModel.h>
+#import <TIMCommon/TIMDefine.h>
+#import <TUICore/TUICore.h>
+#import <TUICore/TUIGlobalization.h>
+#import "TUIFaceView.h"
+#import <TUICore/UIColor+TUIHexColor.h>
+
+#ifndef CGFLOAT_CEIL
+#ifdef CGFLOAT_IS_DOUBLE
+#define CGFLOAT_CEIL(value) ceil(value)
+#else
+#define CGFLOAT_CEIL(value) ceilf(value)
+#endif
+#endif
+
+@interface TUITextMessageCell ()<TUITextViewDelegate>
+@end
+
+@implementation TUITextMessageCell
+
+- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
+    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
+    if (self) {
+        self.textView = [[TUITextView alloc] init];
+        self.textView.backgroundColor = [UIColor clearColor];
+        self.textView.textContainerInset = UIEdgeInsetsMake(0, 0, 0, 0);
+        self.textView.textContainer.lineFragmentPadding = 0;
+        self.textView.scrollEnabled = NO;
+        self.textView.editable = NO;
+        self.textView.delegate = self;
+        self.textView.tuiTextViewDelegate = self;
+        self.bubbleView.userInteractionEnabled = YES;
+        [self.bubbleView addSubview:self.textView];
+        
+        self.bottomContainer = [[UIView alloc] init];
+        [self.contentView addSubview:self.bottomContainer];
+
+        self.voiceReadPoint = [[UIImageView alloc] init];
+        self.voiceReadPoint.backgroundColor = [UIColor redColor];
+        self.voiceReadPoint.frame = CGRectMake(0, 0, 5, 5);
+        self.voiceReadPoint.hidden = YES;
+        [self.voiceReadPoint.layer setCornerRadius:self.voiceReadPoint.frame.size.width / 2];
+        [self.voiceReadPoint.layer setMasksToBounds:YES];
+        [self.bubbleView addSubview:self.voiceReadPoint];
+    }
+    return self;
+}
+
+- (void)prepareForReuse {
+    [super prepareForReuse];
+    for (UIView *view in self.bottomContainer.subviews) {
+        [view removeFromSuperview];
+    }
+}
+
+- (void)onLongPressTextViewMessage:(UITextView *)textView {
+    if (self.delegate && [self.delegate respondsToSelector:@selector(onLongPressMessage:)]) {
+        [self.delegate onLongPressMessage:self];
+    }
+}
+
+// Override
+- (void)notifyBottomContainerReadyOfData:(TUIMessageCellData *)cellData {
+    NSDictionary *param = @{TUICore_TUIChatExtension_BottomContainer_CellData : self.textData};
+    [TUICore raiseExtension:TUICore_TUIChatExtension_BottomContainer_ClassicExtensionID parentView:self.bottomContainer param:param];
+}
+
+- (void)fillWithData:(TUITextMessageCellData *)data {
+    // set data
+    [super fillWithData:data];
+    self.textData = data;
+    
+    self.selectContent = data.content;
+    self.voiceReadPoint.hidden = !data.showUnreadPoint;
+    self.bottomContainer.hidden = CGSizeEqualToSize(data.bottomContainerSize, CGSizeZero);
+    
+    UIColor *textColor = self.class.incommingTextColor;
+    UIFont *textFont = self.class.incommingTextFont;
+    if (data.direction == MsgDirectionIncoming) {
+        textColor = self.class.incommingTextColor;
+        textFont = self.class.incommingTextFont;
+    } else {
+        textColor = self.class.outgoingTextColor;
+        textFont = self.class.outgoingTextFont;
+    }
+    self.textView.attributedText = [data getContentAttributedString:textFont];
+    self.textView.textColor = textColor;
+    self.textView.font = textFont;
+
+    // tell constraints they need updating
+    [self setNeedsUpdateConstraints];
+
+    // update constraints now so we can animate the change
+    [self updateConstraintsIfNeeded];
+
+    [self layoutIfNeeded];
+}
+
++ (BOOL)requiresConstraintBasedLayout {
+    return YES;
+}
+
+// this is Apple's recommended place for adding/updating constraints
+- (void)updateConstraints {
+     
+    [super updateConstraints];
+    
+    [self.textView mas_remakeConstraints:^(MASConstraintMaker *make) {
+        make.leading.mas_equalTo(self.bubbleView.mas_leading).mas_offset(self.textData.textOrigin.x);
+        make.top.mas_equalTo(self.bubbleView.mas_top).mas_offset(self.textData.textOrigin.y);
+        make.size.mas_equalTo(self.textData.textSize);
+    }];
+
+    if (self.voiceReadPoint.hidden == NO) {
+        [self.voiceReadPoint mas_remakeConstraints:^(MASConstraintMaker *make) {
+          make.top.mas_equalTo(self.bubbleView);
+          make.leading.mas_equalTo(self.bubbleView.mas_trailing).mas_offset(1);
+          make.size.mas_equalTo(CGSizeMake(5, 5));
+        }];
+    }
+    
+    BOOL hasRiskContent = self.messageData.innerMessage.hasRiskContent;
+    if (hasRiskContent ) {
+        [self.securityStrikeView mas_remakeConstraints:^(MASConstraintMaker *make) {
+            make.top.mas_equalTo(self.textView.mas_bottom);
+            make.width.mas_equalTo(self.bubbleView);
+            make.bottom.mas_equalTo(self.container).mas_offset(- self.messageData.messageContainerAppendSize.height);
+        }];
+    }
+    [self layoutBottomContainer];
+    
+}
+
+- (void)layoutBottomContainer {
+    if (CGSizeEqualToSize(self.textData.bottomContainerSize, CGSizeZero)) {
+        return;
+    }
+
+    CGSize size = self.textData.bottomContainerSize;
+
+    [self.bottomContainer mas_remakeConstraints:^(MASConstraintMaker *make) {
+        if (self.textData.direction == MsgDirectionIncoming) {
+            make.leading.mas_equalTo(self.container.mas_leading);
+        }
+        else {
+            make.trailing.mas_equalTo(self.container.mas_trailing);
+        }
+        make.top.mas_equalTo(self.container.mas_bottom).offset(6);
+        make.size.mas_equalTo(size);
+    }];
+
+    CGFloat repliesBtnTextWidth = self.messageModifyRepliesButton.frame.size.width;
+    if (!self.messageModifyRepliesButton.hidden) {
+        [self.messageModifyRepliesButton mas_remakeConstraints:^(MASConstraintMaker *make) {
+          if (self.textData.direction == MsgDirectionIncoming) {
+              make.leading.mas_equalTo(self.container.mas_leading);
+          } else {
+              make.trailing.mas_equalTo(self.container.mas_trailing);
+          }
+          make.top.mas_equalTo(self.bottomContainer.mas_bottom);
+          make.size.mas_equalTo(CGSizeMake(repliesBtnTextWidth + 10, 30));
+        }];
+    }
+}
+
+- (void)textViewDidChangeSelection:(UITextView *)textView {
+    NSAttributedString *selectedString = [textView.attributedText attributedSubstringFromRange:textView.selectedRange];
+    if (self.selectAllContentContent && selectedString.length > 0) {
+        if (selectedString.length == textView.attributedText.length) {
+            self.selectAllContentContent(YES);
+        } else {
+            self.selectAllContentContent(NO);
+        }
+    }
+    if (selectedString.length > 0) {
+        NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] init];
+        [attributedString appendAttributedString:selectedString];
+        NSUInteger offsetLocation = 0;
+        for (NSDictionary *emojiLocation in self.textData.emojiLocations) {
+            NSValue *key = emojiLocation.allKeys.firstObject;
+            NSAttributedString *originStr = emojiLocation[key];
+            NSRange currentRange = [key rangeValue];
+            /**
+             * After each emoji is replaced, the length of the string will change, and the actual location of the emoji will also change accordingly.
+             */
+            currentRange.location += offsetLocation;
+            if (currentRange.location >= textView.selectedRange.location) {
+                currentRange.location -= textView.selectedRange.location;
+                if (currentRange.location + currentRange.length <= attributedString.length) {
+                    [attributedString replaceCharactersInRange:currentRange withAttributedString:originStr];
+                    offsetLocation += originStr.length - currentRange.length;
+                }
+            }
+        }
+        self.selectContent = attributedString.string;
+    } else {
+        self.selectContent = nil;
+        [[NSNotificationCenter defaultCenter] postNotificationName:@"kTUIChatPopMenuWillHideNotification" object:nil];
+    }
+}
+
+
+#pragma mark - TUIMessageCellProtocol
+
++ (CGFloat)getEstimatedHeight:(TUIMessageCellData *)data {
+    return 60.f;
+}
+
++ (CGFloat)getHeight:(TUIMessageCellData *)data withWidth:(CGFloat)width {
+    CGFloat height = [super getHeight:data withWidth:width];
+    if (data.bottomContainerSize.height > 0) {
+        height += data.bottomContainerSize.height + kScale375(6);
+    }
+    return height;
+}
+
+static CGSize gMaxTextSize;
++ (void)setMaxTextSize:(CGSize)maxTextSz {
+    gMaxTextSize = maxTextSz;
+}
++ (CGSize)getContentSize:(TUIMessageCellData *)data {
+    NSAssert([data isKindOfClass:TUITextMessageCellData.class], @"data must be kind of TUITextMessageCellData");
+    TUITextMessageCellData *textCellData = (TUITextMessageCellData *)data;
+
+    NSAttributedString *attributeString = [textCellData getContentAttributedString:
+                                           data.direction == MsgDirectionIncoming ? self.incommingTextFont : self.outgoingTextFont];
+    
+    if (CGSizeEqualToSize(gMaxTextSize, CGSizeZero)) {
+        gMaxTextSize = CGSizeMake(TTextMessageCell_Text_Width_Max, MAXFLOAT);
+    }
+    CGSize contentSize = [textCellData getContentAttributedStringSize:attributeString maxTextSize:gMaxTextSize];
+    textCellData.textSize = contentSize;
+
+    CGPoint textOrigin = CGPointMake(textCellData.cellLayout.bubbleInsets.left,
+                                     textCellData.cellLayout.bubbleInsets.top);
+    textCellData.textOrigin = textOrigin;
+    
+    CGFloat height = contentSize.height;
+    CGFloat width = contentSize.width;
+
+    height += textCellData.cellLayout.bubbleInsets.top;
+    height += textCellData.cellLayout.bubbleInsets.bottom;
+    
+    width += textCellData.cellLayout.bubbleInsets.left;
+    width += textCellData.cellLayout.bubbleInsets.right;
+
+    if (textCellData.direction == MsgDirectionIncoming) {
+        height = MAX(height, TUIBubbleMessageCell.incommingBubble.size.height);
+    } else {
+        height = MAX(height, TUIBubbleMessageCell.outgoingBubble.size.height);
+    }
+    
+    BOOL hasRiskContent = textCellData.innerMessage.hasRiskContent;
+    if (hasRiskContent) {
+        width = MAX(width, 200);// width must more than  TIMCommonLocalizableString(TUIKitMessageTypeSecurityStrike)
+        height += kTUISecurityStrikeViewTopLineMargin;
+        height += kTUISecurityStrikeViewTopLineToBottom;
+    }
+
+    CGSize size = CGSizeMake(width, height);
+    return size;
+}
+
+@end
+
+
+@implementation TUITextMessageCell (TUILayoutConfiguration)
+
++ (void)initialize {
+    [NSNotificationCenter.defaultCenter addObserver:self selector:@selector(onThemeChanged) name:TUIDidApplyingThemeChangedNotfication object:nil];
+}
+
+static UIColor *gOutgoingTextColor;
+
++ (UIColor *)outgoingTextColor {
+    if (!gOutgoingTextColor) {
+        gOutgoingTextColor = TUIChatDynamicColor(@"chat_text_message_send_text_color", @"#000000");
+    }
+    return gOutgoingTextColor;
+}
+
++ (void)setOutgoingTextColor:(UIColor *)outgoingTextColor {
+    gOutgoingTextColor = outgoingTextColor;
+}
+
+static UIFont *gOutgoingTextFont;
+
++ (UIFont *)outgoingTextFont {
+    if (!gOutgoingTextFont) {
+        gOutgoingTextFont = [UIFont systemFontOfSize:16];
+    }
+    return gOutgoingTextFont;
+}
+
++ (void)setOutgoingTextFont:(UIFont *)outgoingTextFont {
+    gOutgoingTextFont = outgoingTextFont;
+}
+
+static UIColor *gIncommingTextColor;
+
++ (UIColor *)incommingTextColor {
+    if (!gIncommingTextColor) {
+        gIncommingTextColor = TUIChatDynamicColor(@"chat_text_message_receive_text_color", @"#000000");
+    }
+    return gIncommingTextColor;
+}
+
++ (void)setIncommingTextColor:(UIColor *)incommingTextColor {
+    gIncommingTextColor = incommingTextColor;
+}
+
+static UIFont *gIncommingTextFont;
+
++ (UIFont *)incommingTextFont {
+    if (!gIncommingTextFont) {
+        gIncommingTextFont = [UIFont systemFontOfSize:16];
+    }
+    return gIncommingTextFont;
+}
+
++ (void)setIncommingTextFont:(UIFont *)incommingTextFont {
+    gIncommingTextFont = incommingTextFont;
+}
+
++ (void)onThemeChanged {
+    gOutgoingTextColor = nil;
+    gIncommingTextColor = nil;
+}
+
+@end