1

CustomKeyboard/View/KBChatPanelView.m

@@ -0,0 +1,97 @@
+//
+//  KBChatPanelView.m
+//  CustomKeyboard
+//
+
+#import "KBChatPanelView.h"
+#import "KBChatMessage.h"
+#import "KBChatMessageCell.h"
+#import "Masonry.h"
+
+@interface KBChatPanelView () <UITableViewDataSource, UITableViewDelegate>
+@property (nonatomic, strong) UITableView *tableViewInternal;
+@property (nonatomic, copy) NSArray<KBChatMessage *> *messages;
+@end
+
+@implementation KBChatPanelView
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        self.backgroundColor = [UIColor colorWithHex:0xD1D3DB];
+
+        [self addSubview:self.tableViewInternal];
+
+        [self.tableViewInternal mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.left.right.equalTo(self);
+            make.top.equalTo(self.mas_top).offset(8);
+            make.bottom.equalTo(self.mas_bottom).offset(-8);
+        }];
+    }
+    return self;
+}
+
+#pragma mark - Public
+
+- (void)kb_reloadWithMessages:(NSArray<KBChatMessage *> *)messages {
+    self.messages = messages ?: @[];
+    [self.tableViewInternal reloadData];
+    if (self.messages.count > 0) {
+        NSIndexPath *indexPath = [NSIndexPath indexPathForRow:self.messages.count - 1 inSection:0];
+        [self.tableViewInternal scrollToRowAtIndexPath:indexPath
+                                      atScrollPosition:UITableViewScrollPositionBottom
+                                              animated:YES];
+    }
+}
+
+#pragma mark - UITableViewDataSource
+
+- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
+    return self.messages.count;
+}
+
+- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
+    KBChatMessageCell *cell = [tableView dequeueReusableCellWithIdentifier:NSStringFromClass(KBChatMessageCell.class)];
+    KBChatMessage *msg = self.messages[indexPath.row];
+    [cell kb_configureWithMessage:msg];
+    return cell;
+}
+
+#pragma mark - UITableViewDelegate
+
+- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
+    return UITableViewAutomaticDimension;
+}
+
+- (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath {
+    return 44.0;
+}
+
+- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
+    if (indexPath.row >= self.messages.count) { return; }
+    KBChatMessage *msg = self.messages[indexPath.row];
+    if ([self.delegate respondsToSelector:@selector(chatPanelView:didTapMessage:)]) {
+        [self.delegate chatPanelView:self didTapMessage:msg];
+    }
+}
+
+#pragma mark - Lazy
+
+- (UITableView *)tableViewInternal {
+    if (!_tableViewInternal) {
+        _tableViewInternal = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStylePlain];
+        _tableViewInternal.backgroundColor = [UIColor clearColor];
+        _tableViewInternal.separatorStyle = UITableViewCellSeparatorStyleNone;
+        _tableViewInternal.dataSource = self;
+        _tableViewInternal.delegate = self;
+        _tableViewInternal.estimatedRowHeight = 44.0;
+        _tableViewInternal.rowHeight = UITableViewAutomaticDimension;
+        [_tableViewInternal registerClass:KBChatMessageCell.class forCellReuseIdentifier:NSStringFromClass(KBChatMessageCell.class)];
+    }
+    return _tableViewInternal;
+}
+
+#pragma mark - Expose
+
+- (UITableView *)tableView { return self.tableViewInternal; }
+
+@end