From 28f76be108ba62fa4e99042790774f6296ad4136 Mon Sep 17 00:00:00 2001
From: Pat Hartl <pat@pathar.tl>
Date: Mon, 10 Nov 2025 18:07:13 -0600
Subject: [PATCH] New DataList component

---
 .../Components/DataList/DataList.razor        | 65 +++++++++++++++++++
 .../DataList/DataListInputPosition.cs         |  7 +-
 .../Components/DataList/DataListItem.razor    | 48 ++++++++++++++
 .../DataList/DataListItemInput.razor          | 31 +++++++++
 4 files changed, 148 insertions(+), 3 deletions(-)
 create mode 100644 LANCommander.UI/Components/DataList/DataList.razor
 create mode 100644 LANCommander.UI/Components/DataList/DataListItem.razor
 create mode 100644 LANCommander.UI/Components/DataList/DataListItemInput.razor

diff --git a/LANCommander.UI/Components/DataList/DataList.razor b/LANCommander.UI/Components/DataList/DataList.razor
new file mode 100644
index 00000000..c84fb531
--- /dev/null
+++ b/LANCommander.UI/Components/DataList/DataList.razor
@@ -0,0 +1,65 @@
+@namespace LANCommander.UI.Components
+@typeparam TItem
+
+<div class="data-list">
+    <CascadingValue Value="_radio" Name="Radio">
+        <CascadingValue Value="_checkbox" Name="Checkbox">
+            @foreach (var item in DataSource)
+            {
+                <CascadingValue Value="@(Value.Equals(item) || Values.Contains(item))" Name="Selected">
+                    <DataListItem 
+                        Item="item" 
+                        OnSelectedChanged="(selected) => SelectionChanged(item, selected)" 
+                        ItemTemplate="ChildContent" />
+                </CascadingValue>
+            }
+        </CascadingValue>
+    </CascadingValue>
+</div>
+
+@code {
+    [Parameter] public IEnumerable<TItem> DataSource { get; set; }
+    [Parameter] public TItem Value { get; set; }
+    [Parameter] public EventCallback<TItem> ValueChanged { get; set; }
+    [Parameter] public IEnumerable<TItem> Values { get; set; }
+    [Parameter] public EventCallback<IEnumerable<TItem>> ValuesChanged { get; set; }
+    [Parameter] public RenderFragment<TItem> ChildContent { get; set; }
+    [Parameter] public RenderFragment<TItem> ItemTemplate { get; set; }
+
+    bool _radio;
+    bool _checkbox;
+
+    List<TItem> _selectedValues = new();
+
+    protected override void OnInitialized()
+    {
+        if (ValueChanged.HasDelegate)
+            _radio = true;
+        else if (ValuesChanged.HasDelegate)
+            _checkbox = true;
+
+        if (ChildContent == null && ItemTemplate != null)
+            ChildContent = ItemTemplate;
+    }
+
+    async Task SelectionChanged(TItem item, bool selected)
+    {
+        if (_radio && selected)
+        {
+            Value = item;
+
+            await ValueChanged.InvokeAsync(Value);
+        }
+        else if (_checkbox)
+        {
+            _selectedValues.Remove(item);
+            
+            if (selected)
+                _selectedValues.Add(item);
+
+            Values = _selectedValues;
+            
+            await ValuesChanged.InvokeAsync(Values);
+        }
+    }
+}
\ No newline at end of file
diff --git a/LANCommander.UI/Components/DataList/DataListInputPosition.cs b/LANCommander.UI/Components/DataList/DataListInputPosition.cs
index 1704e316..16839717 100644
--- a/LANCommander.UI/Components/DataList/DataListInputPosition.cs
+++ b/LANCommander.UI/Components/DataList/DataListInputPosition.cs
@@ -1,6 +1,7 @@
-namespace LANCommander.UI.Components.DataList;
+namespace LANCommander.UI.Components;
 
-public class DataListInputPosition
+public enum DataListInputPosition
 {
-    
+    Left,
+    Right,
 }
\ No newline at end of file
diff --git a/LANCommander.UI/Components/DataList/DataListItem.razor b/LANCommander.UI/Components/DataList/DataListItem.razor
new file mode 100644
index 00000000..f3cff779
--- /dev/null
+++ b/LANCommander.UI/Components/DataList/DataListItem.razor
@@ -0,0 +1,48 @@
+@namespace LANCommander.UI.Components
+@typeparam TItem
+
+<CascadingValue Value="Item" Name="Item">
+    <Flex @onclick="ToggleSelection" Align="Align" Justify="Justify" Gap="Gap" Class="data-list-item">
+        @if (InputPosition == DataListInputPosition.Left)
+        {
+            <DataListItemInput />
+        }
+    
+        @ItemTemplate(Item)
+    
+        @if (InputPosition == DataListInputPosition.Right)
+        {
+            <DataListItemInput />
+        }
+    </Flex>
+</CascadingValue>
+
+@code {
+    [CascadingParameter(Name = "Selected")]
+    public bool Selected { get; set; }
+    
+    [CascadingParameter(Name = "Radio")]
+    public bool Radio { get; set; }
+    
+    [CascadingParameter(Name = "Checkbox")]
+    public bool Checkbox { get; set; }
+    
+    [CascadingParameter(Name = "InputPosition")]
+    public DataListInputPosition InputPosition { get; set; }
+    
+    [CascadingParameter(Name = "SelectionTemplate")]
+    public RenderFragment<TItem> SelectionTemplate { get; set; }
+    
+    [Parameter] public TItem Item { get; set; }
+    [Parameter] public RenderFragment<TItem> ItemTemplate { get; set; }
+    [Parameter] public EventCallback<bool> OnSelectedChanged { get; set; }
+    [Parameter] public FlexAlign Align { get; set; } = FlexAlign.Normal;
+    [Parameter] public FlexJustify Justify { get; set; } = FlexJustify.Center;
+    [Parameter] public FlexGap Gap { get; set; } = FlexGap.Normal;
+
+    private async Task ToggleSelection()
+    {
+        if (OnSelectedChanged.HasDelegate)
+            await OnSelectedChanged.InvokeAsync(!Selected);
+    }
+}
\ No newline at end of file
diff --git a/LANCommander.UI/Components/DataList/DataListItemInput.razor b/LANCommander.UI/Components/DataList/DataListItemInput.razor
new file mode 100644
index 00000000..0eeccd22
--- /dev/null
+++ b/LANCommander.UI/Components/DataList/DataListItemInput.razor
@@ -0,0 +1,31 @@
+@namespace LANCommander.UI.Components
+@typeparam TItem
+
+@if (SelectionTemplate != null)
+{
+    @SelectionTemplate((Item, Selected))
+}
+else if (Radio)
+{
+    <Radio Checked="Selected"></Radio>
+}
+else if (Checkbox)
+{
+    <Checkbox Checked="Selected"></Checkbox>
+}
+
+@code {
+    [CascadingParameter(Name = "Item")]
+    public TItem Item { get; set; }
+    
+    [CascadingParameter(Name = "Selected")]
+    public bool Selected { get; set; }
+    
+    [CascadingParameter(Name = "Radio")]
+    public bool Radio { get; set; }
+    
+    [CascadingParameter(Name = "Checkbox")]
+    public bool Checkbox { get; set; }
+    
+    [Parameter] public RenderFragment<(TItem, bool)> SelectionTemplate { get; set; }
+}
\ No newline at end of file