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Tyrrrz
2021-12-08 23:50:21 +02:00
parent 8e7baee8a5
commit 880f400e2c
148 changed files with 14241 additions and 14396 deletions
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7
DiscordChatExporter.Gui/Behaviors/ChannelMultiSelectionListBoxBehavior.cs
View File

@@ -1,8 +1,7 @@
using DiscordChatExporter.Core.Discord.Data;
namespace DiscordChatExporter.Gui.Behaviors
namespace DiscordChatExporter.Gui.Behaviors;
public class ChannelMultiSelectionListBoxBehavior : MultiSelectionListBoxBehavior<Channel>
{
public class ChannelMultiSelectionListBoxBehavior : MultiSelectionListBoxBehavior<Channel>
{
}
}

147
DiscordChatExporter.Gui/Behaviors/MultiSelectionListBoxBehavior.cs
View File

@@ -5,88 +5,87 @@ using System.Windows;
using System.Windows.Controls;
using Microsoft.Xaml.Behaviors;
namespace DiscordChatExporter.Gui.Behaviors
namespace DiscordChatExporter.Gui.Behaviors;
public class MultiSelectionListBoxBehavior<T> : Behavior<ListBox>
{
public class MultiSelectionListBoxBehavior<T> : Behavior<ListBox>
public static readonly DependencyProperty SelectedItemsProperty =
DependencyProperty.Register(nameof(SelectedItems), typeof(IList),
typeof(MultiSelectionListBoxBehavior<T>),
new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
OnSelectedItemsChanged));
private static void OnSelectedItemsChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
public static readonly DependencyProperty SelectedItemsProperty =
DependencyProperty.Register(nameof(SelectedItems), typeof(IList),
typeof(MultiSelectionListBoxBehavior<T>),
new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
OnSelectedItemsChanged));
var behavior = (MultiSelectionListBoxBehavior<T>) sender;
if (behavior._modelHandled) return;
private static void OnSelectedItemsChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
if (behavior.AssociatedObject is null)
return;
behavior._modelHandled = true;
behavior.SelectItems();
behavior._modelHandled = false;
}
private bool _viewHandled;
private bool _modelHandled;
public IList? SelectedItems
{
get => (IList?) GetValue(SelectedItemsProperty);
set => SetValue(SelectedItemsProperty, value);
}
// Propagate selected items from model to view
private void SelectItems()
{
_viewHandled = true;
AssociatedObject.SelectedItems.Clear();
if (SelectedItems is not null)
{
var behavior = (MultiSelectionListBoxBehavior<T>) sender;
if (behavior._modelHandled) return;
if (behavior.AssociatedObject is null)
return;
behavior._modelHandled = true;
behavior.SelectItems();
behavior._modelHandled = false;
foreach (var item in SelectedItems)
AssociatedObject.SelectedItems.Add(item);
}
private bool _viewHandled;
private bool _modelHandled;
_viewHandled = false;
}
public IList? SelectedItems
// Propagate selected items from view to model
private void OnListBoxSelectionChanged(object? sender, SelectionChangedEventArgs args)
{
if (_viewHandled) return;
if (AssociatedObject.Items.SourceCollection is null) return;
SelectedItems = AssociatedObject.SelectedItems.Cast<T>().ToArray();
}
// Re-select items when the set of items changes
private void OnListBoxItemsChanged(object? sender, NotifyCollectionChangedEventArgs args)
{
if (_viewHandled) return;
if (AssociatedObject.Items.SourceCollection is null) return;
SelectItems();
}
protected override void OnAttached()
{
base.OnAttached();
AssociatedObject.SelectionChanged += OnListBoxSelectionChanged;
((INotifyCollectionChanged) AssociatedObject.Items).CollectionChanged += OnListBoxItemsChanged;
}
/// <inheritdoc />
protected override void OnDetaching()
{
base.OnDetaching();
if (AssociatedObject is not null)
{
get => (IList?) GetValue(SelectedItemsProperty);
set => SetValue(SelectedItemsProperty, value);
}
// Propagate selected items from model to view
private void SelectItems()
{
_viewHandled = true;
AssociatedObject.SelectedItems.Clear();
if (SelectedItems is not null)
{
foreach (var item in SelectedItems)
AssociatedObject.SelectedItems.Add(item);
}
_viewHandled = false;
}
// Propagate selected items from view to model
private void OnListBoxSelectionChanged(object? sender, SelectionChangedEventArgs args)
{
if (_viewHandled) return;
if (AssociatedObject.Items.SourceCollection is null) return;
SelectedItems = AssociatedObject.SelectedItems.Cast<T>().ToArray();
}
// Re-select items when the set of items changes
private void OnListBoxItemsChanged(object? sender, NotifyCollectionChangedEventArgs args)
{
if (_viewHandled) return;
if (AssociatedObject.Items.SourceCollection is null) return;
SelectItems();
}
protected override void OnAttached()
{
base.OnAttached();
AssociatedObject.SelectionChanged += OnListBoxSelectionChanged;
((INotifyCollectionChanged) AssociatedObject.Items).CollectionChanged += OnListBoxItemsChanged;
}
/// <inheritdoc />
protected override void OnDetaching()
{
base.OnDetaching();
if (AssociatedObject is not null)
{
AssociatedObject.SelectionChanged -= OnListBoxSelectionChanged;
((INotifyCollectionChanged) AssociatedObject.Items).CollectionChanged -= OnListBoxItemsChanged;
}
AssociatedObject.SelectionChanged -= OnListBoxSelectionChanged;
((INotifyCollectionChanged) AssociatedObject.Items).CollectionChanged -= OnListBoxItemsChanged;
}
}
}