dating_touchme_app/lib/controller/home/send_timeline_controller.dart

import 'package:dating_touchme_app/config/emoji_config.dart';
import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';

class SendTimelineController extends GetxController {
  final title = "".obs;
  final message = ''.obs;
  final TextEditingController messageController = TextEditingController();

  final focusNode = FocusNode().obs;

  final isEmojiVisible = false.obs;

  @override
  void onInit() {
    super.onInit();
    focusNode.value.addListener(() {
      if (focusNode.value.hasFocus) {
        // 输入框获得焦点（键盘弹起），关闭所有控制面板
        isEmojiVisible.value = false;
      }
    });
  }

  @override
  void onClose() {
    super.onClose();
    focusNode.value.dispose();
  }


  void toggleEmojiPanel() {
    isEmojiVisible.value = !isEmojiVisible.value;
    FocusManager.instance.primaryFocus?.unfocus();
  }

  void handleEmojiSelected(EmojiItem emoji) {
    // 将表情添加到输入框
    final currentText = messageController.text;
    final emojiText = '[emoji:${emoji.id}]';
    messageController.text = currentText + emojiText;
    // 将光标移到末尾
    messageController.selection = TextSelection.fromPosition(
      TextPosition(offset: messageController.text.length),
    );
  }


  /// 构建输入框内容（文本+表情）
  List<Widget> buildInputContentWidgets() {
    final List<Widget> widgets = [];
    final text = messageController.value.text;
    final RegExp emojiRegex = RegExp(r'\[emoji:(\d+)\]');

    int lastMatchEnd = 0;
    final matches = emojiRegex.allMatches(text);

    for (final match in matches) {
      // 添加表情之前的文本
      if (match.start > lastMatchEnd) {
        final textPart = text.substring(lastMatchEnd, match.start);
        widgets.add(
          Text(
            textPart,
            style: TextStyle(fontSize: 14.sp, color: Colors.black),
          ),
        );
      }

      // 添加表情图片
      final emojiId = match.group(1);
      if (emojiId != null) {
        final emoji = EmojiConfig.getEmojiById(emojiId);
        if (emoji != null) {
          widgets.add(
            Padding(
              padding: EdgeInsets.symmetric(horizontal: 2.w),
              child: Image.asset(
                emoji.path,
                width: 24.w,
                height: 24.w,
                fit: BoxFit.contain,
              ),
            ),
          );
        }
      }

      lastMatchEnd = match.end;
    }

    // 添加剩余的文本
    if (lastMatchEnd < text.length) {
      final textPart = text.substring(lastMatchEnd);
      widgets.add(
        Text(
          textPart,
          style: TextStyle(fontSize: 14.sp, color: Colors.black),
        ),
      );
    }

    return widgets;
  }

}