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Console upgrades, PossibleCommands VM

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This commit is contained in:
Ádám Kovács
2023-08-10 22:54:52 +02:00
parent 96d4eb926d
commit e989a65e81
48 changed files with 983 additions and 400 deletions
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69
src/Library/TerminalUI/Controls/ListView.cs
View File

@@ -1,5 +1,6 @@
using System.Buffers;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using DeclarativeProperty;
using PropertyChanged.SourceGenerator;
using TerminalUI.Models;
@@ -79,18 +80,30 @@ public partial class ListView<TDataContext, TItem> : View<TDataContext>
if (_itemsSource is IDeclarativeProperty<ObservableCollection<TItem>> observableDeclarativeProperty)
{
observableDeclarativeProperty.PropertyChanged += (_, _) => ApplicationContext?.EventLoop.RequestRerender();
_getItems = () => observableDeclarativeProperty.Value;
throw new NotSupportedException();
}
else if (_itemsSource is IDeclarativeProperty<ReadOnlyObservableCollection<TItem>> readOnlyObservableDeclarativeProperty)
{
readOnlyObservableDeclarativeProperty.PropertyChanged += (_, _) => ApplicationContext?.EventLoop.RequestRerender();
_getItems = () => readOnlyObservableDeclarativeProperty.Value;
throw new NotSupportedException();
}
else if (_itemsSource is IDeclarativeProperty<IEnumerable<TItem>> enumerableDeclarativeProperty)
{
enumerableDeclarativeProperty.PropertyChanged += (_, _) => ApplicationContext?.EventLoop.RequestRerender();
_getItems = () => enumerableDeclarativeProperty.Value;
throw new NotSupportedException();
}
if (_itemsSource is ObservableCollection<TItem> observableDeclarative)
{
((INotifyCollectionChanged) observableDeclarative).CollectionChanged +=
(_, _) => ApplicationContext?.EventLoop.RequestRerender();
_getItems = () => observableDeclarative;
}
else if (_itemsSource is ReadOnlyObservableCollection<TItem> readOnlyObservableDeclarative)
{
((INotifyCollectionChanged) readOnlyObservableDeclarative).CollectionChanged +=
(_, _) => ApplicationContext?.EventLoop.RequestRerender();
_getItems = () => readOnlyObservableDeclarative;
}
else if (_itemsSource is ICollection<TItem> collection)
_getItems = () => collection;
@@ -111,7 +124,7 @@ public partial class ListView<TDataContext, TItem> : View<TDataContext>
}
}
public Func<ListViewItem<TItem>, IView?> ItemTemplate { get; set; } = DefaultItemTemplate;
public Func<ListViewItem<TItem>, IView<TItem>?> ItemTemplate { get; set; } = DefaultItemTemplate;
public ListView()
{
@@ -120,7 +133,7 @@ public partial class ListView<TDataContext, TItem> : View<TDataContext>
RerenderProperties.Add(nameof(Orientation));
}
public override Size GetRequestedSize()
protected override Size CalculateSize()
{
InstantiateItemViews();
if (_listViewItems is null || _listViewItemLength == 0)
@@ -147,19 +160,16 @@ public partial class ListView<TDataContext, TItem> : View<TDataContext>
}
}
protected override void DefaultRenderer(Position position, Size size)
{
if (Orientation == Orientation.Vertical)
RenderVertical(position, size);
else
RenderHorizontal(position, size);
}
protected override bool DefaultRenderer(RenderContext renderContext, Position position, Size size)
=> Orientation == Orientation.Vertical
? RenderVertical(renderContext, position, size)
: RenderHorizontal(renderContext, position, size);
private void RenderHorizontal(Position position, Size size)
private bool RenderHorizontal(RenderContext renderContext, Position position, Size size)
{
//Note: no support for same width elements
var listViewItems = InstantiateItemViews();
if (listViewItems.Length == 0) return;
if (listViewItems.Length == 0) return false;
Span<Size> requestedSizes = stackalloc Size[_listViewItemLength];
@@ -215,20 +225,22 @@ public partial class ListView<TDataContext, TItem> : View<TDataContext>
width = size.Width - deltaX;
}
item.Render(position with {X = position.X + deltaX}, size with {Width = width});
item.Render(renderContext, position with {X = position.X + deltaX}, size with {Width = width});
deltaX = nextDeltaX;
}
return true;
}
private void RenderVertical(Position position, Size size)
private bool RenderVertical(RenderContext renderContext, Position position, Size size)
{
//Note: only same height is supported
var requestedItemSize = _requestedItemSize;
if (requestedItemSize.Height == 0 || requestedItemSize.Width == 0)
return;
return false;
var listViewItems = InstantiateItemViews();
if (listViewItems.Length == 0) return;
if (listViewItems.Length == 0) return false;
var itemsToRender = listViewItems.Length;
var heightNeeded = requestedItemSize.Height * listViewItems.Length;
@@ -264,7 +276,7 @@ public partial class ListView<TDataContext, TItem> : View<TDataContext>
for (var i = renderStartIndex; i < lastItemIndex; i++)
{
var item = listViewItems[i];
item.Render(position with {Y = position.Y + deltaY}, requestedItemSize with {Width = size.Width});
item.Render(renderContext, position with {Y = position.Y + deltaY}, requestedItemSize with {Width = size.Width});
deltaY += requestedItemSize.Height;
}
@@ -276,6 +288,8 @@ public partial class ListView<TDataContext, TItem> : View<TDataContext>
driver.SetCursorPosition(position with {Y = position.Y + i});
driver.Write(placeholder);
}
return true;
}
private Span<ListViewItem<TItem>> InstantiateItemViews()
@@ -300,11 +314,16 @@ public partial class ListView<TDataContext, TItem> : View<TDataContext>
{
var dataContext = items[i];
var child = CreateChild<ListViewItem<TItem>, TItem>(_ => dataContext);
child.Content = ItemTemplate(child);
ItemTemplate(child);
var newContent = ItemTemplate(child);
child.Content = newContent;
newListViewItems[i] = child;
}
if (_listViewItems is not null)
{
ListViewItemPool.Return(_listViewItems);
}
_listViewItems = newListViewItems;
_listViewItemLength = items.Count;
listViewItems = newListViewItems[..items.Count];
@@ -324,5 +343,5 @@ public partial class ListView<TDataContext, TItem> : View<TDataContext>
return _listViewItems;
}
private static IView? DefaultItemTemplate(ListViewItem<TItem> listViewItem) => null;
private static IView<TItem>? DefaultItemTemplate(ListViewItem<TItem> listViewItem) => null;
}