chore: import upstream snapshot with attribution

TLChat/Modules/Contacts/TLContactsViewController/Views/TLContactsHeaderView.h

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+//
+//  TLContactsHeaderView.h
+//  TLChat
+//
+//  Created by 李伯坤 on 16/1/26.
+//  Copyright © 2016年 李伯坤. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface TLContactsHeaderView : UITableViewHeaderFooterView <ZZFlexibleLayoutViewProtocol>
+
+@property (nonatomic, strong) NSString *title;
+
+@end

TLChat/Modules/Contacts/TLContactsViewController/Views/TLContactsHeaderView.m

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+//
+//  TLContactsHeaderView.m
+//  TLChat
+//
+//  Created by 李伯坤 on 16/1/26.
+//  Copyright © 2016年 李伯坤. All rights reserved.
+//
+
+#import "TLContactsHeaderView.h"
+
+@interface TLContactsHeaderView ()
+
+@property (nonatomic, strong) UILabel *titleLabel;
+
+@end
+
+@implementation TLContactsHeaderView
+
++ (CGFloat)viewHeightByDataModel:(id)dataModel
+{
+    return 22.0f;
+}
+
+- (void)setViewDataModel:(id)dataModel
+{
+    [self setTitle:dataModel];
+}
+
+- (id)initWithReuseIdentifier:(NSString *)reuseIdentifier
+{
+    if (self = [super initWithReuseIdentifier:reuseIdentifier]) {
+        UIView *bgView = [UIView new];
+        [bgView setBackgroundColor:[UIColor colorGrayBG]];
+        [self setBackgroundView:bgView];
+        
+        self.titleLabel = self.contentView.addLabel(1)
+        .font([UIFont systemFontOfSize:15])
+        .textColor([UIColor grayColor])
+        .masonry(^ (MASConstraintMaker *make){
+            make.left.mas_equalTo(10);
+            make.centerY.mas_equalTo(0);
+            make.right.mas_lessThanOrEqualTo(-15);
+        })
+        .view;
+    }
+    return self;
+}
+
+- (void)setTitle:(NSString *)title
+{
+    _title = title;
+    [_titleLabel setText:title];
+}
+
+@end

TLChat/Modules/Contacts/TLContactsViewController/Views/TLContactsItemCell.h

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+//
+//  TLContactsItemCell.h
+//  TLChat
+//
+//  Created by 李伯坤 on 16/1/26.
+//  Copyright © 2016年 李伯坤. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+#import "TLUser.h"
+
+@class TLContactsItemModel;
+TLContactsItemModel *createContactsItemModel(NSString *path, NSString *url, NSString *title, NSString *subTitle, id userInfo);
+TLContactsItemModel *createContactsItemModelWithTag(NSInteger tag, NSString *path, NSString *url, NSString *title, NSString *subTitle, id userInfo);
+
+@interface TLContactsItemModel : NSObject
+
+/// tag
+@property (nonatomic, assign) NSInteger tag;
+
+/// 图片本地路径
+@property (nonatomic, strong) NSString *imagePath;
+
+/// 图片url，优先使用
+@property (nonatomic, strong) NSString *imageUrl;
+
+/// 标题
+@property (nonatomic, strong) NSString *title;
+
+/// 副标题
+@property (nonatomic, strong) NSString *subTitle;
+
+/// 占位图
+@property (nonatomic, strong) UIImage *placeholderImage;
+
+/// 用户自定义数据
+@property (nonatomic, strong) id userInfo;
+
+@end
+
+@interface TLContactsItemCell : UITableViewCell <ZZFlexibleLayoutViewProtocol>
+
+@property (nonatomic, strong) TLContactsItemModel *model;
+
+@end

TLChat/Modules/Contacts/TLContactsViewController/Views/TLContactsItemCell.m

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+//
+//  TLContactsItemCell.m
+//  TLChat
+//
+//  Created by 李伯坤 on 16/1/26.
+//  Copyright © 2016年 李伯坤. All rights reserved.
+//
+
+#import "TLContactsItemCell.h"
+
+TLContactsItemModel *createContactsItemModel(NSString *path, NSString *url, NSString *title, NSString *subTitle, id userInfo)
+{
+    return createContactsItemModelWithTag(0, path, url, title, subTitle, userInfo);
+}
+
+TLContactsItemModel *createContactsItemModelWithTag(NSInteger tag, NSString *path, NSString *url, NSString *title, NSString *subTitle, id userInfo)
+{
+    TLContactsItemModel *model = [[TLContactsItemModel alloc] init];
+    model.tag = tag;
+    model.imagePath = path;
+    model.imageUrl = url;
+    model.title = title;
+    model.subTitle = subTitle;
+    model.userInfo = userInfo;
+    return model;
+}
+
+@interface TLContactsItemCell ()
+
+@property (nonatomic, strong) UIImageView *avatarView;
+
+@property (nonatomic, strong) UILabel *nameLabel;
+
+@property (nonatomic, strong) UILabel *subTitleLabel;
+
+@end
+
+@implementation TLContactsItemCell
+
++ (CGFloat)viewHeightByDataModel:(id)dataModel
+{
+    return 55.0f;
+}
+
+- (void)setViewDataModel:(id)dataModel
+{
+    [self setModel:dataModel];
+}
+
+- (void)viewIndexPath:(NSIndexPath *)indexPath sectionItemCount:(NSInteger)count
+{
+    if (indexPath.row == count - 1) {
+        self.removeSeparator(ZZSeparatorPositionBottom);
+    }
+    else {
+        self.addSeparator(ZZSeparatorPositionBottom).beginAt(10);
+    }
+}
+
+#pragma mark - # Cell
+- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
+{
+    if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]) {
+        [self p_initUI];
+    }
+    return self;
+}
+
+- (void)setModel:(TLContactsItemModel *)model
+{
+    _model = model;
+    
+    UIImage *localImage = (model.imagePath.length > 0 ? TLImage(model.imagePath) : nil);
+    if (model.imageUrl) {
+        UIImage *placeholder = model.placeholderImage ? model.placeholderImage : (localImage ? localImage : TLImage(DEFAULT_AVATAR_PATH));
+        [self.avatarView tt_setImageWithURL:TLURL(model.imageUrl) placeholderImage:placeholder];
+    }
+    else if (model.imagePath) {
+        [self.avatarView setImage:[UIImage imageNamed:model.imagePath]];
+    }
+    
+    [self.nameLabel setText:model.title];
+    [self.subTitleLabel setText:model.subTitle];
+    
+    if (model.subTitle.length > 0) {
+        if (self.subTitleLabel.isHidden) {
+            [self.subTitleLabel setHidden:NO];
+            [self.nameLabel mas_updateConstraints:^(MASConstraintMaker *make) {
+                make.centerY.mas_equalTo(self.avatarView).mas_offset(-9.5);
+            }];
+        }
+    }
+    else if (!self.subTitleLabel.isHidden){
+        [self.nameLabel mas_updateConstraints:^(MASConstraintMaker *make) {
+            make.centerY.mas_equalTo(self.avatarView);
+        }];
+    }
+}
+
+#pragma mark - # Prvate Methods
+- (void)p_initUI
+{
+    // 头像
+    self.avatarView = self.contentView.addImageView(1)
+    .masonry(^(MASConstraintMaker *make) {
+        make.left.top.mas_equalTo(10);
+        make.bottom.mas_equalTo(-10);
+    })
+    .view;
+    [self.avatarView mas_updateConstraints:^(MASConstraintMaker *make) {
+        make.width.mas_equalTo(self.avatarView.mas_height);
+    }];
+    
+    // 昵称
+    self.nameLabel = self.contentView.addLabel(2)
+    .font([UIFont systemFontOfSize:17.0f])
+    .masonry(^(MASConstraintMaker *make) {
+        make.left.mas_equalTo(self.avatarView.mas_right).mas_offset(10);
+        make.centerY.mas_equalTo(self.avatarView);
+        make.right.mas_lessThanOrEqualTo(-20);
+    })
+    .view;
+    
+    // 备注
+    self.subTitleLabel = self.contentView.addLabel(3)
+    .font([UIFont systemFontOfSize:14.0f])
+    .textColor([UIColor grayColor])
+    .masonry(^(MASConstraintMaker *make) {
+        make.left.mas_equalTo(self.nameLabel);
+        make.top.mas_equalTo(self.nameLabel.mas_bottom).mas_offset(2);
+        make.right.mas_lessThanOrEqualTo(-20);
+    })
+    .view;
+}
+
+@end
+
+@implementation TLContactsItemModel
+
+@end