87 lines
2.2 KiB
Dart
87 lines
2.2 KiB
Dart
// ignore: avoid_web_libraries_in_flutter
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import 'dart:html' as html;
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/// Web 端设备信息：浏览器无法稳定获取品牌/型号，系统名和版本从 UA 解析。
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Future<void> initializeDeviceInfo() async {}
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String getDeviceType() {
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try {
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final ua = html.window.navigator.userAgent;
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if (ua.contains('iPhone') || ua.contains('iPad') || ua.contains('iPod')) {
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return 'iOS';
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}
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if (ua.contains('Android')) return 'Android';
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} catch (_) {}
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return 'PC';
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}
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String getSystemName() => _osInfo().name;
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String getSystemVersion() => _osInfo().version;
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String getDeviceBrand() => '';
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String getDeviceModel() => '';
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String getUserAgent() {
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try {
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return html.window.navigator.userAgent;
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} catch (_) {
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return '';
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}
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}
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_OsInfo _osInfo() {
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try {
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return _parseOsInfo(html.window.navigator.userAgent);
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} catch (_) {
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return const _OsInfo('', '');
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}
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}
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_OsInfo _parseOsInfo(String ua) {
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if (ua.contains('iPhone') || ua.contains('iPad') || ua.contains('iPod')) {
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final match =
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RegExp(r'(?:CPU (?:iPhone )?OS|iPhone OS) ([\d_]+)').firstMatch(ua);
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if (match != null) {
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return _OsInfo('iOS', _normalizeVersion(match.group(1)));
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}
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return const _OsInfo('iOS', '');
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}
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if (ua.contains('Android')) {
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final match = RegExp(r'Android ([\d.]+)').firstMatch(ua);
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if (match != null) return _OsInfo('Android', match.group(1) ?? '');
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return const _OsInfo('Android', '');
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}
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final macMatch = RegExp(r'Mac OS X ([^;)]+)').firstMatch(ua);
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if (macMatch != null) {
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return _OsInfo('macOS', _normalizeVersion(macMatch.group(1)));
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}
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final windowsMatch = RegExp(r'Windows NT ([\d.]+)').firstMatch(ua);
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if (windowsMatch != null) {
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return _OsInfo('Windows', windowsMatch.group(1) ?? '');
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}
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final chromeOsMatch = RegExp(r'CrOS [^ ]+ ([\d.]+)').firstMatch(ua);
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if (chromeOsMatch != null) {
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return _OsInfo('ChromeOS', chromeOsMatch.group(1) ?? '');
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}
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if (ua.contains('Linux')) return const _OsInfo('Linux', '');
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return const _OsInfo('', '');
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}
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String _normalizeVersion(String? version) {
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return (version ?? '').replaceAll('_', '.').trim();
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}
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class _OsInfo {
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final String name;
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final String version;
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const _OsInfo(this.name, this.version);
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}
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