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https://github.com/wwiinnddyy/LanMountainDesktop.git
synced 2026-08-19 13:23:25 +08:00
feat.RSS
This commit is contained in:
lincube
318
LanMountainDesktop.AirAppHost/RssReaderAirAppView.axaml.cs
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318
LanMountainDesktop.AirAppHost/RssReaderAirAppView.axaml.cs
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using System.Diagnostics;
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using Avalonia.Controls;
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using Avalonia.Interactivity;
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using Avalonia.Layout;
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using Avalonia.Media;
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using Avalonia.Platform.Storage;
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using Avalonia.Threading;
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using LanMountainDesktop.Services;
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using LanMountainDesktop.Services.RssReader;
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using LanMountainDesktop.Services.Settings;
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namespace LanMountainDesktop.AirAppHost;
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public sealed partial class RssReaderAirAppView : UserControl, IDisposable
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{
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private readonly AirAppLaunchOptions _options;
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private readonly RssReaderService _service = new();
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private readonly LocalizationService _localization = new();
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private readonly string _languageCode;
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private string? _sourceId;
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private bool _unreadOnly;
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private bool _favoritesOnly;
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private RssEntry? _selectedEntry;
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private string? _lastHandledTargetEntryId;
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private readonly DispatcherTimer _refreshTimer = new();
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private NativeWebView? _articleWebView;
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public RssReaderAirAppView() : this(AirAppLaunchOptions.Parse([])) { }
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public RssReaderAirAppView(AirAppLaunchOptions options)
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{
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_options = options;
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try
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{
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_languageCode = _localization.NormalizeLanguageCode(new AppSettingsService().Load().LanguageCode);
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}
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catch
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{
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_languageCode = "zh-CN";
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}
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InitializeComponent();
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ApplyLocalization();
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AddButton.Click += OnAdd;
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RefreshButton.Click += OnRefresh;
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AllButton.Click += (_, _) => SetFilter(null, false, false, L("rss.all_articles", "All articles"));
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UnreadButton.Click += (_, _) => SetFilter(null, true, false, L("rss.unread", "Unread"));
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FavoritesButton.Click += (_, _) => SetFilter(null, false, true, L("rss.favorites", "Favorites"));
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SourcesList.SelectionChanged += OnSourceSelected;
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EditSourceButton.Click += OnEditSource;
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DeleteSourceButton.Click += OnDeleteSource;
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EntriesList.SelectionChanged += OnEntrySelected;
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MarkAllReadButton.Click += OnMarkAllRead;
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FavoriteButton.Click += OnFavorite;
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OpenOriginalButton.Click += OnOpenOriginal;
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ImportButton.Click += OnImport;
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ExportButton.Click += OnExport;
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SettingsButton.Click += OnSettings;
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_service.Changed += OnChanged;
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_refreshTimer.Tick += async (_, _) => await RefreshAsync(force: false);
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DetachedFromVisualTree += (_, _) => Dispose();
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Reload();
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ConfigureRefreshTimer();
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_ = RefreshAsync(force: true);
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}
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public void Dispose()
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{
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_service.Changed -= OnChanged;
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_refreshTimer.Stop();
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if (_articleWebView is not null)
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{
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ArticleHtmlHost.Children.Remove(_articleWebView);
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_articleWebView = null;
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}
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_service.Dispose();
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}
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private void OnChanged(object? sender, EventArgs e) => Dispatcher.UIThread.Post(Reload);
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private void Reload()
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{
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var selectedSource = _sourceId;
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SourcesList.ItemsSource = _service.GetSources().Select(source => new SourceItem(source)).ToArray();
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var entries = _service.GetEntries(_sourceId, _unreadOnly, _favoritesOnly, 500);
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EntriesList.ItemsSource = entries.Select(entry => new EntryItem(entry)).ToArray();
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var targetEntryId = _options.TargetEntryId ?? _service.GetPendingEntryId();
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if (!string.IsNullOrWhiteSpace(targetEntryId) && targetEntryId != _lastHandledTargetEntryId)
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{
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var target = entries.FirstOrDefault(entry => entry.Id == targetEntryId) ?? _service.GetEntry(targetEntryId);
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if (target is not null) { _lastHandledTargetEntryId = targetEntryId; ShowEntry(target); }
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}
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StatusText.Text = string.Format(L("rss.status_counts", "{0} articles · {1} sources"), entries.Count, _service.GetSources().Count);
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}
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private void SetFilter(string? sourceId, bool unread, bool favorites, string title)
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{
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_sourceId = sourceId; _unreadOnly = unread; _favoritesOnly = favorites; ListTitle.Text = title; Reload();
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}
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private void OnSourceSelected(object? sender, SelectionChangedEventArgs e)
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{
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var hasSource = SourcesList.SelectedItem is SourceItem;
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EditSourceButton.IsEnabled = hasSource;
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DeleteSourceButton.IsEnabled = hasSource;
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if (SourcesList.SelectedItem is SourceItem item) SetFilter(item.Source.Id, false, false, item.Source.Title);
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}
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private async void OnEditSource(object? sender, RoutedEventArgs e)
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{
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if (SourcesList.SelectedItem is not SourceItem item) return;
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var owner = TopLevel.GetTopLevel(this) as Window; if (owner is null) return;
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var title = new TextBox { Text = item.Source.Title, Width = 390 };
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var folder = new TextBox { Text = item.Source.Folder, Width = 390 };
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var enabled = new CheckBox { Content = L("rss.enabled", "Enabled"), IsChecked = item.Source.IsEnabled };
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var interval = new NumericUpDown { Minimum = 15, Maximum = 1440, Value = item.Source.RefreshIntervalMinutes ?? 30 };
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var save = new Button { Content = L("rss.save", "Save"), HorizontalAlignment = HorizontalAlignment.Right };
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var dialog = new Window { Title = L("rss.edit_source", "Edit RSS source"), Width = 460, Height = 360, CanResize = false };
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save.Click += (_, _) =>
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{
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_service.UpdateSource(item.Source.Id, title.Text ?? item.Source.Title, folder.Text, enabled.IsChecked == true, (int)(interval.Value ?? 30));
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dialog.Close();
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};
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dialog.Content = new StackPanel { Margin = new Avalonia.Thickness(24), Spacing = 10, Children = { new TextBlock { Text = L("rss.name", "Name") }, title, new TextBlock { Text = L("rss.folder", "Folder") }, folder, enabled, new TextBlock { Text = L("rss.refresh_interval_minutes", "Refresh interval (minutes)") }, interval, save } };
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await dialog.ShowDialog(owner);
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}
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private async void OnDeleteSource(object? sender, RoutedEventArgs e)
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{
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if (SourcesList.SelectedItem is not SourceItem item) return;
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var owner = TopLevel.GetTopLevel(this) as Window; if (owner is null) return;
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var preserve = new CheckBox { Content = L("rss.keep_favorites", "Keep favorited articles"), IsChecked = true };
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var delete = new Button { Content = L("rss.delete", "Delete"), HorizontalAlignment = HorizontalAlignment.Right };
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var cancel = new Button { Content = L("rss.cancel", "Cancel") };
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var dialog = new Window { Title = L("rss.delete_source", "Delete RSS source"), Width = 420, Height = 220, CanResize = false };
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delete.Click += (_, _) => { _service.DeleteSource(item.Source.Id, preserve.IsChecked == true); _sourceId = null; dialog.Close(); };
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cancel.Click += (_, _) => dialog.Close();
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dialog.Content = new StackPanel { Margin = new Avalonia.Thickness(24), Spacing = 14, Children = { new TextBlock { Text = string.Format(L("rss.delete_source_confirm", "Delete {0}?"), item.Source.Title), FontSize = 18, TextWrapping = TextWrapping.Wrap }, preserve, new StackPanel { Orientation = Orientation.Horizontal, Spacing = 8, HorizontalAlignment = HorizontalAlignment.Right, Children = { cancel, delete } } } };
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await dialog.ShowDialog(owner);
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}
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private void OnEntrySelected(object? sender, SelectionChangedEventArgs e)
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{
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if (EntriesList.SelectedItem is EntryItem item) ShowEntry(item.Entry);
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}
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private void ShowEntry(RssEntry entry)
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{
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if (!entry.IsRead) _service.MarkRead(entry.Id);
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_selectedEntry = entry with { IsRead = true };
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ArticleTitle.Text = entry.Title;
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ArticleMeta.Text = $"{entry.SourceTitle} · {entry.PublishedAt.ToLocalTime():g}{(string.IsNullOrWhiteSpace(entry.Author) ? string.Empty : " · " + entry.Author)}";
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var html = string.IsNullOrWhiteSpace(entry.Content) ? entry.Summary : entry.Content;
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ShowArticleContent(html);
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FavoriteButton.IsEnabled = true;
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FavoriteButton.Content = entry.IsFavorite ? $"★ {L("rss.favorited", "Favorited")}" : $"☆ {L("rss.favorite", "Favorite")}";
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OpenOriginalButton.IsEnabled = !string.IsNullOrWhiteSpace(entry.Link);
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}
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private async void OnRefresh(object? sender, RoutedEventArgs e) => await RefreshAsync(force: true);
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private async Task RefreshAsync(bool force)
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{
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RefreshButton.IsEnabled = false; StatusText.Text = L("rss.refreshing", "Refreshing…");
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try { await _service.RefreshAllAsync(force); StatusText.Text = L("rss.updated", "Updated"); }
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catch (Exception ex) { StatusText.Text = $"{L("rss.refresh_failed", "Refresh failed")}: {ex.Message}"; }
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finally { RefreshButton.IsEnabled = true; Reload(); }
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}
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private void OnMarkAllRead(object? sender, RoutedEventArgs e) => _service.MarkAllRead(_sourceId);
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private void OnFavorite(object? sender, RoutedEventArgs e)
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{
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if (_selectedEntry is null) return;
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var favorite = !_selectedEntry.IsFavorite;
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_service.SetFavorite(_selectedEntry.Id, favorite);
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ShowEntry(_selectedEntry with { IsFavorite = favorite });
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}
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private void OnOpenOriginal(object? sender, RoutedEventArgs e)
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{
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if (!Uri.TryCreate(_selectedEntry?.Link, UriKind.Absolute, out var uri)) return;
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Process.Start(new ProcessStartInfo(uri.AbsoluteUri) { UseShellExecute = true });
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}
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private void ShowArticleContent(string html)
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{
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var settings = _service.GetSettings();
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var sanitized = RssReaderService.SanitizeHtml(html, settings.LoadRemoteImages);
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ArticleBody.Text = RssReaderService.ToPlainText(sanitized);
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try
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{
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var availability = WebView2RuntimeProbe.GetAvailability();
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if (!availability.IsAvailable || string.IsNullOrWhiteSpace(sanitized))
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{
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ArticleHtmlHost.IsVisible = false;
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ArticleTextScroller.IsVisible = true;
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return;
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}
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_articleWebView ??= CreateArticleWebView();
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var imagePolicy = settings.LoadRemoteImages ? "https: http: data:" : "data:";
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var document = $$"""
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<!doctype html><html><head><meta charset="utf-8">
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<meta http-equiv="Content-Security-Policy" content="default-src 'none'; img-src {{imagePolicy}}; style-src 'unsafe-inline'">
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<style>body{font-family:system-ui,sans-serif;margin:24px;color:#202124;line-height:1.65;font-size:16px}img{max-width:100%;height:auto}a{color:#0067c0}pre{white-space:pre-wrap}</style>
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</head><body>{{sanitized}}</body></html>
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""";
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var encoded = Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(document));
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_articleWebView.Navigate(new Uri($"data:text/html;base64,{encoded}"));
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ArticleTextScroller.IsVisible = false;
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ArticleHtmlHost.IsVisible = true;
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}
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catch
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{
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ArticleHtmlHost.IsVisible = false;
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ArticleTextScroller.IsVisible = true;
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}
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}
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private NativeWebView CreateArticleWebView()
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{
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var webView = new NativeWebView();
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ArticleHtmlHost.Children.Add(webView);
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return webView;
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}
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private async void OnAdd(object? sender, RoutedEventArgs e)
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{
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var owner = TopLevel.GetTopLevel(this) as Window;
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if (owner is null) return;
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var url = new TextBox { PlaceholderText = "https://example.com/feed.xml", Width = 430 };
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var title = new TextBox { PlaceholderText = L("rss.optional_name", "Optional custom name"), Width = 430 };
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var folder = new TextBox { PlaceholderText = L("rss.optional_folder", "Optional folder"), Width = 430 };
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var message = new TextBlock { TextWrapping = TextWrapping.Wrap };
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var add = new Button { Content = L("rss.probe_add", "Probe and add"), HorizontalAlignment = HorizontalAlignment.Right };
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var dialog = new Window { Title = L("rss.add_source", "Add RSS source"), Width = 500, Height = 330, CanResize = false };
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add.Click += async (_, _) =>
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{
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add.IsEnabled = false; message.Text = L("rss.checking_feed", "Checking feed…");
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try
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{
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var probe = await _service.ProbeAsync(url.Text ?? string.Empty);
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message.Text = $"{probe.Title} · {probe.Format}";
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await _service.AddSourceAsync(url.Text ?? string.Empty, title.Text, folder.Text);
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dialog.Close();
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}
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catch (Exception ex) { message.Text = ex.Message; add.IsEnabled = true; }
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};
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dialog.Content = new StackPanel { Margin = new Avalonia.Thickness(24), Spacing = 12, Children = { new TextBlock { Text = L("rss.feed_url", "Feed URL") }, url, new TextBlock { Text = L("rss.name", "Name") }, title, new TextBlock { Text = L("rss.folder", "Folder") }, folder, message, add } };
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await dialog.ShowDialog(owner);
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}
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private async void OnImport(object? sender, RoutedEventArgs e)
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{
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var top = TopLevel.GetTopLevel(this); if (top is null) return;
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var files = await top.StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions { Title = L("rss.import_opml", "Import OPML"), AllowMultiple = false, FileTypeFilter = [new FilePickerFileType("OPML") { Patterns = ["*.opml", "*.xml"] }] });
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var path = files.FirstOrDefault()?.TryGetLocalPath(); if (path is null) return;
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var result = await _service.ImportOpmlAsync(path); StatusText.Text = string.Format(L("rss.import_result", "Imported {0}, skipped {1}, failed {2}."), result.Added, result.Skipped, result.Failed);
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}
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private async void OnExport(object? sender, RoutedEventArgs e)
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{
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var top = TopLevel.GetTopLevel(this); if (top is null) return;
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var file = await top.StorageProvider.SaveFilePickerAsync(new FilePickerSaveOptions { Title = L("rss.export_opml", "Export OPML"), SuggestedFileName = "subscriptions.opml", FileTypeChoices = [new FilePickerFileType("OPML") { Patterns = ["*.opml"] }] });
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var path = file?.TryGetLocalPath(); if (path is null) return; _service.ExportOpml(path); StatusText.Text = L("rss.exported", "OPML exported.");
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}
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private async void OnSettings(object? sender, RoutedEventArgs e)
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{
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var owner = TopLevel.GetTopLevel(this) as Window; if (owner is null) return;
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var settings = _service.GetSettings();
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var interval = new ComboBox { ItemsSource = new[] { new Choice(15, string.Format(L("rss.minutes", "{0} minutes"), 15)), new Choice(30, string.Format(L("rss.minutes", "{0} minutes"), 30)), new Choice(60, string.Format(L("rss.minutes", "{0} minutes"), 60)), new Choice(0,L("rss.manual_only", "Manual only")) }, SelectedIndex = settings.RefreshIntervalMinutes switch { 15 => 0, 60 => 2, 0 => 3, _ => 1 } };
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var images = new CheckBox { Content = L("rss.load_remote_images", "Load remote images"), IsChecked = settings.LoadRemoteImages };
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var save = new Button { Content = L("rss.save", "Save"), HorizontalAlignment = HorizontalAlignment.Right };
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var dialog = new Window { Title = L("rss.settings", "RSS settings"), Width = 420, Height = 240, CanResize = false };
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save.Click += (_, _) => { var value = (interval.SelectedItem as Choice)?.Value ?? 30; _service.SaveSettings(settings with { RefreshIntervalMinutes = value, LoadRemoteImages = images.IsChecked == true }); ConfigureRefreshTimer(); dialog.Close(); };
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dialog.Content = new StackPanel { Margin = new Avalonia.Thickness(24), Spacing = 14, Children = { new TextBlock { Text = L("rss.refresh_interval", "Refresh interval") }, interval, images, save } };
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await dialog.ShowDialog(owner);
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}
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private sealed record SourceItem(RssSource Source) { public override string ToString() => string.IsNullOrWhiteSpace(Source.Folder) ? Source.Title : $"{Source.Folder} / {Source.Title}"; }
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private void ConfigureRefreshTimer()
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{
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var minutes = _service.GetSettings().RefreshIntervalMinutes;
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_refreshTimer.Stop();
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if (minutes <= 0) return;
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_refreshTimer.Interval = TimeSpan.FromMinutes(minutes);
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_refreshTimer.Start();
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}
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private void ApplyLocalization()
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{
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AddButton.Content = L("rss.add_source", "Add source");
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RefreshButton.Content = L("rss.refresh", "Refresh");
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AllButton.Content = L("rss.all_articles", "All articles");
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UnreadButton.Content = L("rss.unread", "Unread");
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FavoritesButton.Content = L("rss.favorites", "Favorites");
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EditSourceButton.Content = L("rss.edit", "Edit");
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DeleteSourceButton.Content = L("rss.delete", "Delete");
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ImportButton.Content = L("rss.import_opml", "Import OPML");
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ExportButton.Content = L("rss.export_opml", "Export OPML");
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SettingsButton.Content = L("rss.settings", "Settings");
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ListTitle.Text = L("rss.all_articles", "All articles");
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MarkAllReadButton.Content = L("rss.mark_all_read", "Mark all read");
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ArticleTitle.Text = L("rss.select_article", "Select an article");
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ArticleBody.Text = L("rss.article_placeholder", "Your RSS articles will appear here.");
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FavoriteButton.Content = $"☆ {L("rss.favorite", "Favorite")}";
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OpenOriginalButton.Content = L("rss.open_original", "Open original");
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}
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private string L(string key, string fallback) => _localization.GetString(_languageCode, key, fallback);
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private sealed record EntryItem(RssEntry Entry)
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{
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public string DisplayTitle => (Entry.IsRead ? string.Empty : "● ") + Entry.Title;
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public FontWeight Weight => Entry.IsRead ? FontWeight.Normal : FontWeight.SemiBold;
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public string Metadata => $"{Entry.SourceTitle} · {Entry.PublishedAt.ToLocalTime():g}{(Entry.IsFavorite ? " · ★" : string.Empty)}";
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}
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private sealed record Choice(int Value, string Label) { public override string ToString() => Label; }
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}
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