更新

2025-07-11 09:20:23 +08:00
parent c7b104f44f
commit 4d35cadb56
840 changed files with 102347 additions and 11595 deletions
--- a/WPFDark/Controls/BiaFilteringComboBoxEventHandler.cs
+++ b/WPFDark/Controls/BiaFilteringComboBoxEventHandler.cs
@@ -0,0 +1,147 @@
+using System;
+using System.ComponentModel;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Input;
+using System.Windows.Threading;
+using Jewelry.Memory;
+
+using WPFDark.Internals;
+
+namespace WPFDark.Controls
+{
+    // ReSharper disable once UnusedMember.Global
+    public partial class BiaFilteringComboBoxEventHandler
+    {
+        private void ClearButton_OnClick(object sender, RoutedEventArgs e)
+        {
+            var button = (FrameworkElement) sender;
+            var wordTextBox = (TextBox) button.Tag;
+
+            wordTextBox.Text = "";
+            wordTextBox.Focus();
+        }
+
+        private void ClearButton_OnLoaded(object sender, RoutedEventArgs e)
+        {
+            var button = (FrameworkElement) sender;
+            var wordTextBox = (TextBox) button.Tag;
+
+            wordTextBox.Dispatcher?.BeginInvoke(new Action(() => wordTextBox.Focus()));
+        }
+
+        [SuppressMessage("ReSharper", "PossiblyImpureMethodCallOnReadonlyVariable")]
+        private void WordTextBox_OnKeyDown(object sender, KeyEventArgs e)
+        {
+            if (e.Key != Key.Down &&
+                e.Key != Key.Up)
+                return;
+
+            var textBox = (FrameworkElement) sender;
+            var sv = textBox.Parent.Descendants().OfType<ScrollViewer>().First();
+
+            if (e.Key == Key.Down)
+                sv.ScrollToHome();
+            else
+                sv.ScrollToBottom();
+
+            // ※.VirtualizingStackPanelなためスクロールを済ませてからアイテムを探しに行く
+            sv.Dispatcher?.BeginInvoke(
+                DispatcherPriority.Input,
+                new Action(() =>
+                {
+                    using var items = textBox.Parent.Descendants().OfType<ComboBoxItem>().ToTempBuffer(512);
+
+                    if (items.Length == 0)
+                        return;
+
+                    var selectedItem = items.FirstOrDefault(x => x.IsSelected);
+                    var isDown = e.Key == Key.Down;
+
+                    if (selectedItem is null)
+                    {
+                        var item = isDown
+                            ? items.FirstOrDefault()
+                            : items.LastOrDefault();
+
+                        if (item != null)
+                            item.IsSelected = true;
+                    }
+                    else
+                    {
+                        var selectedItemIndex = items.IndexOf(selectedItem);
+                        var nextIndex = selectedItemIndex + (isDown ? +1 : -1);
+
+                        nextIndex = Math.Max(nextIndex, 0);
+                        nextIndex = Math.Min(nextIndex, items.Length - 1);
+
+                        var nextItem = items[nextIndex];
+                        nextItem.IsSelected = true;
+                    }
+
+                    textBox.Focus();
+                }));
+        }
+
+        private void Popup_OnClosed(object sender, EventArgs e)
+        {
+            var popup = (FrameworkElement) sender;
+            var parent = popup.GetParent<BiaFilteringComboBox>();
+
+            if (parent is null)
+                return;
+
+            parent.FilterWords = "";
+
+            var expression = parent.GetBindingExpression(Selector.SelectedItemProperty);
+            expression?.UpdateTarget();
+        }
+
+        private void Popup_OnOpened(object sender, EventArgs e)
+        {
+            var popup = (FrameworkElement) sender;
+
+            UpdateClearButton(popup);
+        }
+
+        private void Popup_OnLoaded(object sender, RoutedEventArgs e)
+        {
+            var popup = (Popup) sender;
+            var parent = popup.GetParent<BiaFilteringComboBox>();
+
+            var descriptor = DependencyPropertyDescriptor.FromProperty(BiaFilteringComboBox.FilterWordsProperty,
+                typeof(BiaFilteringComboBox));
+
+            descriptor.AddValueChanged(parent, UpdateClearButtonHandler);
+        }
+
+        private void Popup_OnUnloaded(object sender, RoutedEventArgs e)
+        {
+            var popup = (Popup) sender;
+            var parent = popup.GetParent<BiaFilteringComboBox>();
+
+            var descriptor = DependencyPropertyDescriptor.FromProperty(BiaFilteringComboBox.FilterWordsProperty,
+                typeof(BiaFilteringComboBox));
+
+            descriptor.RemoveValueChanged(parent, UpdateClearButtonHandler);
+        }
+
+        private static void UpdateClearButtonHandler(object? sender, EventArgs e)
+        {
+            if (sender is FrameworkElement popup)
+                UpdateClearButton(popup);
+        }
+
+        private static void UpdateClearButton(FrameworkElement popup)
+        {
+            var parent = popup.GetParent<BiaFilteringComboBox>();
+            var clearButton = popup.Descendants().OfType<Button>().FirstOrDefault();
+
+            if (clearButton != null)
+                clearButton.IsEnabled = string.IsNullOrEmpty(parent?.FilterWords) == false;
+        }
+    }
+}