82 lines
3.2 KiB
Objective-C
82 lines
3.2 KiB
Objective-C
//
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// TUIChatBotStreamTextCell.m
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// TUICustomerServicePlugin
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//
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// Created by lynx on 2023/10/30.
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//
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#import "TUIBotStreamTextCell.h"
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#import <TIMCommon/TIMDefine.h>
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#import <TUICore/TUICore.h>
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@implementation TUIBotStreamTextCell
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- (void)fillWithData:(TUIBotStreamTextCellData *)data {
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[super fillWithData:data];
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// 在线 Push 的文本需要流式展示
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if (Msg_Source_OnlinePush == data.source) {
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data.timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, dispatch_get_main_queue());
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NSTimeInterval period = 0.05;
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dispatch_time_t start = dispatch_time(DISPATCH_TIME_NOW, period * NSEC_PER_SEC);
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dispatch_source_set_timer(data.timer, start, period * NSEC_PER_SEC, 0 * NSEC_PER_SEC);
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dispatch_source_set_event_handler(data.timer, ^{
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if (data.displayedContentLength == data.contentString.length) {
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[self stopTimer:data.timer];
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return;
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}
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data.displayedContentLength++;
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if (self.textView.attributedText.length > 1 &&
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[self getAttributeStringRect:self.textView.attributedText].size.height >
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[self getAttributeStringRect:[self.textView.attributedText attributedSubstringFromRange:
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NSMakeRange(0, self.textView.attributedText.length - 1)]].size.height) {
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[self stopTimer:data.timer];
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[self notifyCellSizeChanged];
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} else {
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UIColor *textColor = self.class.incommingTextColor;
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UIFont *textFont = self.class.incommingTextFont;
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if (data.direction == MsgDirectionIncoming) {
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textColor = self.class.incommingTextColor;
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textFont = self.class.incommingTextFont;
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} else {
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textColor = self.class.outgoingTextColor;
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textFont = self.class.outgoingTextFont;
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}
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self.textView.attributedText = [data getContentAttributedString:textFont];
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self.textView.textColor = textColor;
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[self updateCellConstraints];
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}
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});
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dispatch_resume(data.timer);
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}
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}
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- (CGRect)getAttributeStringRect:(NSAttributedString *)attributeString {
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return [attributeString boundingRectWithSize:CGSizeMake(TTextMessageCell_Text_Width_Max, MAXFLOAT)
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options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading context:nil];
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}
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- (void)stopTimer:(dispatch_source_t)timer {
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if (timer) {
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dispatch_source_cancel(timer);
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timer = nil;
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}
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}
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- (void)notifyCellSizeChanged {
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NSDictionary *param = @{TUICore_TUIPluginNotify_PluginViewSizeChangedSubKey_Message : self.textData.innerMessage};
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[TUICore notifyEvent:TUICore_TUIPluginNotify
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subKey:TUICore_TUIPluginNotify_PluginViewSizeChangedSubKey
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object:nil
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param:param];
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}
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- (void)updateCellConstraints {
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// tell constraints they need updating
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[self setNeedsUpdateConstraints];
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// update constraints now so we can animate the change
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[self updateConstraintsIfNeeded];
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[self layoutIfNeeded];
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}
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@end
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