更新整理

WPFluent/Controls/CodeBlock/CodeBlock.cs

@@ -0,0 +1,115 @@
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file, You can obtain one at https://opensource.org/licenses/MIT.
+// Copyright (C) Leszek Pomianowski and WPF UI Contributors.
+// All Rights Reserved.
+
+using System;
+using System.Diagnostics;
+using System.Windows;
+
+using WPFluent.Appearance;
+using WPFluent.Input;
+
+using Color = System.Windows.Media.Color;
+
+namespace WPFluent.Controls;
+
+/// <summary>
+/// Formats and display a fragment of the source code.
+/// </summary>
+public class CodeBlock : System.Windows.Controls.ContentControl
+{
+    private string _sourceCode = string.Empty;
+
+    /// <summary>
+    /// Property for <see cref="SyntaxContent"/>.
+    /// </summary>
+    public static readonly DependencyProperty SyntaxContentProperty = DependencyProperty.Register(
+        nameof(SyntaxContent),
+        typeof(object),
+        typeof(CodeBlock),
+        new PropertyMetadata(null)
+    );
+
+    /// <summary>
+    /// Property for <see cref="ButtonCommand"/>.
+    /// </summary>
+    public static readonly DependencyProperty ButtonCommandProperty = DependencyProperty.Register(
+        nameof(ButtonCommand),
+        typeof(IRelayCommand),
+        typeof(CodeBlock)
+    );
+
+    /// <summary>
+    /// Gets the formatted <see cref="System.Windows.Controls.ContentControl.Content"/>.
+    /// </summary>
+    public object? SyntaxContent
+    {
+        get => GetValue(SyntaxContentProperty);
+        internal set => SetValue(SyntaxContentProperty, value);
+    }
+
+    /// <summary>
+    /// Gets the command triggered after clicking the control button.
+    /// </summary>
+    internal IRelayCommand ButtonCommand => (IRelayCommand)GetValue(ButtonCommandProperty);
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="CodeBlock"/> class, and assigns <see cref="ButtonCommand"/> default action.
+    /// </summary>
+    public CodeBlock()
+    {
+        SetValue(ButtonCommandProperty, new RelayCommand<string>(OnTemplateButtonClick));
+
+        ApplicationThemeManager.Changed += ThemeOnChanged;
+    }
+
+    private void ThemeOnChanged(ApplicationTheme currentApplicationTheme, Color systemAccent)
+    {
+        UpdateSyntax();
+    }
+
+    /// <summary>
+    /// This method is invoked when the Content property changes.
+    /// </summary>
+    /// <param name="oldContent">The old value of the Content property.</param>
+    /// <param name="newContent">The new value of the Content property.</param>
+    protected override void OnContentChanged(object oldContent, object newContent)
+    {
+        UpdateSyntax();
+    }
+
+    protected virtual void UpdateSyntax()
+    {
+        _sourceCode = Highlighter.Clean(Content as string ?? string.Empty);
+
+        var richTextBox = new RichTextBox()
+        {
+            IsTextSelectionEnabled = true,
+            VerticalContentAlignment = VerticalAlignment.Center,
+            VerticalAlignment = VerticalAlignment.Center,
+            HorizontalAlignment = HorizontalAlignment.Left,
+            HorizontalContentAlignment = HorizontalAlignment.Left,
+        };
+
+        richTextBox.Document.Blocks.Clear();
+        richTextBox.Document.Blocks.Add(Highlighter.FormatAsParagraph(_sourceCode));
+
+        SetCurrentValue(SyntaxContentProperty, richTextBox);
+    }
+
+    private void OnTemplateButtonClick(string? _)
+    {
+        Debug.WriteLine($"INFO | CodeBlock source: \n{_sourceCode}", "Wpf.Ui.CodeBlock");
+
+        try
+        {
+            Clipboard.Clear();
+            Clipboard.SetText(_sourceCode);
+        }
+        catch (Exception e)
+        {
+            Debug.WriteLine(e);
+        }
+    }
+}