124 lines
3.3 KiB
Dart
124 lines
3.3 KiB
Dart
import 'dart:convert';
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import 'package:maxdash/helpers/services/json_decoder.dart';
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import 'package:maxdash/helpers/services/localizations/language.dart';
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import 'package:maxdash/helpers/services/localizations/translator.dart';
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import 'package:maxdash/helpers/services/navigation_services.dart';
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import 'package:maxdash/helpers/theme/admin_theme.dart';
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import 'package:maxdash/helpers/theme/app_notifier.dart';
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import 'package:maxdash/helpers/theme/app_theme.dart';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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typedef ThemeChangeCallback = void Function(
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ThemeCustomizer oldVal, ThemeCustomizer newVal);
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class ThemeCustomizer {
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ThemeCustomizer();
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static final List<ThemeChangeCallback> _notifier = [];
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Language currentLanguage = Language.languages.first;
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ThemeMode theme = ThemeMode.light;
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ThemeMode leftBarTheme = ThemeMode.light;
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ThemeMode rightBarTheme = ThemeMode.light;
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ThemeMode topBarTheme = ThemeMode.light;
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bool rightBarOpen = false;
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bool leftBarCondensed = false;
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static ThemeCustomizer instance = ThemeCustomizer();
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static ThemeCustomizer oldInstance = ThemeCustomizer();
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static Future<void> init() async {
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await initLanguage();
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}
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static initLanguage() async {
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await changeLanguage(ThemeCustomizer.instance.currentLanguage);
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}
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String toJSON() {
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return jsonEncode({'theme': theme.name});
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}
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static ThemeCustomizer fromJSON(String? json) {
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instance = ThemeCustomizer();
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if (json != null && json.trim().isNotEmpty) {
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JSONDecoder decoder = JSONDecoder(json);
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instance.theme =
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decoder.getEnum('theme', ThemeMode.values, ThemeMode.light);
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}
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return instance;
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}
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static void addListener(ThemeChangeCallback callback) {
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_notifier.add(callback);
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}
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static void removeListener(ThemeChangeCallback callback) {
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_notifier.remove(callback);
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}
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static void _notify() {
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AdminTheme.setTheme();
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AppStyle.changeMyTheme();
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if (NavigationService.globalContext != null) {
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Provider.of<AppNotifier>(NavigationService.globalContext!, listen: false)
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.updateTheme(instance);
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}
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for (var value in _notifier) {
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value(oldInstance, instance);
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}
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}
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static void notify() {
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for (var value in _notifier) {
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value(oldInstance, instance);
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}
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}
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static void setTheme(ThemeMode theme) {
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oldInstance = instance.clone();
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instance.theme = theme;
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instance.leftBarTheme = theme;
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instance.rightBarTheme = theme;
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instance.topBarTheme = theme;
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_notify();
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}
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static Future<void> changeLanguage(Language language) async {
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oldInstance = instance.clone();
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ThemeCustomizer.instance.currentLanguage = language;
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await Translator.changeLanguage(language);
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}
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static void openRightBar(bool opened) {
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instance.rightBarOpen = opened;
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_notify();
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}
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static void toggleLeftBarCondensed() {
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instance.leftBarCondensed = !instance.leftBarCondensed;
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_notify();
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}
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ThemeCustomizer clone() {
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var tc = ThemeCustomizer();
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tc.theme = theme;
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tc.rightBarTheme = rightBarTheme;
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tc.leftBarTheme = leftBarTheme;
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tc.topBarTheme = topBarTheme;
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tc.rightBarOpen = rightBarOpen;
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tc.leftBarCondensed = leftBarCondensed;
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tc.currentLanguage = currentLanguage.clone();
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return tc;
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}
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@override
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String toString() {
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return 'ThemeCustomizer{theme: $theme}';
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}
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}
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