Public/apps/native/lib/widgets/tencent_map_thumb.dart

import 'dart:typed_data';

import 'package:flutter/material.dart';

import '../api/oa_client.dart';
import '../theme.dart';

class TencentMapThumb extends StatefulWidget {
  const TencentMapThumb({
    super.key,
    required this.api,
    required this.lat,
    required this.lng,
    this.height = 110,
    this.width,
  });
  final OaClient api;
  final double lat;
  final double lng;
  final double height;
  final double? width;

  @override
  State<TencentMapThumb> createState() => _TencentMapThumbState();
}

class _TencentMapThumbState extends State<TencentMapThumb> {
  Uint8List? _bytes;

  @override
  void initState() {
    super.initState();
    _load();
  }

  @override
  void didUpdateWidget(covariant TencentMapThumb oldWidget) {
    super.didUpdateWidget(oldWidget);
    if (oldWidget.lat != widget.lat || oldWidget.lng != widget.lng) _load();
  }

  Future<void> _load() async {
    final b = await widget.api.getBytes('/office/geo/static-map', query: {
      'lat': '${widget.lat}',
      'lng': '${widget.lng}',
    });
    if (!mounted) return;
    setState(() => _bytes = b);
  }

  @override
  Widget build(BuildContext context) {
    if (_bytes != null) {
      return Image.memory(_bytes!, width: widget.width, height: widget.height, fit: BoxFit.cover);
    }
    return SizedBox(
      width: widget.width,
      height: widget.height,
      child: const ColoredBox(
        color: Color(0xFFE8F5E9),
        child: Center(child: Icon(Icons.place, color: kWeGreen, size: 32)),
      ),
    );
  }
}