gramps
85893ea709
The first true decomposition of the 4105-line god-object, not another partial shuffle. MainViewModel.Chat.cs 194 -> 44 lines of thin delegation; all chat behavior now lives in a self-contained Services/ChatOverlayLayer.cs (199): - Owns the message buffer (Messages), ChatBoxRenderer, fade + mock-preview timers, per-source preview renders, and the live-output RenderFrame path. - The VM keeps only the binding surface: ChatMessages delegates to _chatLayer.Messages (so XAML ItemsSource + LeftPanel CollectionChanged hold), CanAddYouTubeChat / ShowChatInactiveMessage stay computed on the VM (OnPropertyChanged raised from VM setters + XAML-bound), and thin forwards. - Scenes handed in as args (no Func seam), so the layer owns no scene graph. An AI reading ChatOverlayLayer.cs now sees the entire chat feature in one self-contained unit. Zero behavior change; build 0 warnings; 246 pass, only the 2 known failures. Docs: ViewModels/index.md tracker updated in same commit.
45 lines
1.5 KiB
C#
45 lines
1.5 KiB
C#
using System.Collections.ObjectModel;
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using System.Linq;
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using ytLive.Helpers;
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using ytLive.Models;
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using ytLive.Services;
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namespace ytLive.ViewModels;
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public partial class MainViewModel : ViewModelBase
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{
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private readonly ChatOverlayLayer _chatLayer;
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/// <summary>The live chat message buffer — the same collection the
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/// <see cref="ChatOverlayLayer"/> owns; here so XAML can bind it and the
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/// left panel can subscribe to its changes.</summary>
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public ObservableCollection<ChatMessage> ChatMessages => _chatLayer.Messages;
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/// <summary>The Add → YouTube Chat menu item: enabled only while no chat layer exists
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/// anywhere — one chat overlay per layout.</summary>
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public bool CanAddYouTubeChat
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=> StagedScene != null
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&& !Scenes.Any(s => s.Elements.OfType<Source>().Any(e => e.Type == SourceType.ChatBox));
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public bool ShowChatInactiveMessage => !IsLive;
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private void OnChatMessageReceived(ChatMessage message)
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=> _chatLayer.OnMessageReceived(message, Scenes);
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private void UpdateChatBoxPreview(Source chatBox, IReadOnlyList<ChatMessage>? messages = null)
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=> _chatLayer.UpdatePreview(chatBox, messages);
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private VideoFrame? RenderChatBox(Source chatBox)
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=> _chatLayer.RenderFrame(chatBox);
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private void StartMockChatPreview()
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=> _chatLayer.StartMockPreview(Scenes);
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private void StopMockChatPreview()
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=> _chatLayer.StopMockPreview();
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private void UpdateActiveChatBoxPreviews()
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=> _chatLayer.UpdateConfiguredBoxes(Scenes);
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}
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