wehub-resource-sync
55 lines
2.1 KiB
C#
55 lines
2.1 KiB
C#
namespace T3.Editor.UiModel.Commands.Graph;
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/// <summary>
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/// Toggles `EnabledForSnapshots` (backing: `SnapshotGroupIndex`) on a set of children. Stores each
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/// child's pre-change group index so undo restores the exact previous state rather than a flat
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/// enable/disable.
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/// </summary>
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internal sealed class ChangeSnapshotEnabledCommand : ICommand
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{
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public string Name => "Toggle snapshot enabled";
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public bool IsUndoable => true;
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private const int GroupIndexForSnapshots = 1;
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private readonly Guid _parentSymbolId;
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private readonly List<Entry> _changes = [];
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internal ChangeSnapshotEnabledCommand(Guid parentSymbolId, IEnumerable<SymbolUi.Child> children, bool newEnabled)
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{
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_parentSymbolId = parentSymbolId;
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var newIndex = newEnabled ? GroupIndexForSnapshots : 0;
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foreach (var child in children)
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{
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var originalEnabledInputIds = child.SnapshotEnabledInputIds == null ? null : new HashSet<Guid>(child.SnapshotEnabledInputIds);
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_changes.Add(new Entry(child.Id, child.SnapshotGroupIndex, originalEnabledInputIds, newIndex));
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}
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}
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public void Do() => Apply(useNew: true);
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public void Undo() => Apply(useNew: false);
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private void Apply(bool useNew)
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{
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if (!SymbolUiRegistry.TryGetSymbolUi(_parentSymbolId, out var symbolUi))
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return;
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foreach (var change in _changes)
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{
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if (!symbolUi.ChildUis.TryGetValue(change.ChildId, out var child))
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continue;
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child.SnapshotGroupIndex = useNew ? change.NewGroupIndex : change.OriginalGroupIndex;
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// The bulk toggle resets per-parameter selection: enable means all parameters
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child.SnapshotEnabledInputIds = useNew || change.OriginalEnabledInputIds == null
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? null
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: [..change.OriginalEnabledInputIds];
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}
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symbolUi.FlagAsModified();
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}
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private readonly record struct Entry(Guid ChildId, int OriginalGroupIndex, HashSet<Guid>? OriginalEnabledInputIds, int NewGroupIndex);
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}
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