mirror of
https://github.com/bloxstraplabs/bloxstrap.git
synced 2025-04-23 02:51:26 -07:00
651 lines
26 KiB
C#
651 lines
26 KiB
C#
using System.ComponentModel;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Data;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Xml.Linq;
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using Wpf.Ui.Markup;
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namespace Bloxstrap.UI.Elements.Bootstrapper
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{
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public partial class CustomDialog
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{
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private const int MaxElements = 50;
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private static ThicknessConverter? _thicknessConverter = null;
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private static ThicknessConverter ThicknessConverter { get => _thicknessConverter ??= new ThicknessConverter(); }
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private static BrushConverter? _brushConverter = null;
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private static BrushConverter BrushConverter { get => _brushConverter ??= new BrushConverter(); }
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private bool _initialised = false;
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// prevent users from creating elements with the same name multiple times
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private List<string> UsedNames { get; } = new List<string>();
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private string ThemeDir { get; set; } = "";
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delegate void HandleXmlElementDelegate(CustomDialog dialog, XElement xmlElement);
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delegate void HandleXmlTransformationElementDelegate(TransformGroup group, XElement xmlElement);
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private static Dictionary<string, HandleXmlElementDelegate> _elementHandlerMap = new Dictionary<string, HandleXmlElementDelegate>()
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{
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//["BloxstrapCustomBootstrapper"] = HandleXmlElement_BloxstrapCustomBootstrapper,
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["TitleBar"] = HandleXmlElement_TitleBar,
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["Button"] = HandleXmlElement_Button,
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["ProgressBar"] = HandleXmlElement_ProgressBar,
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["TextBlock"] = HandleXmlElement_TextBlock,
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["Image"] = HandleXmlElement_Image
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};
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private static Dictionary<string, HandleXmlTransformationElementDelegate> _transformationHandlerMap = new Dictionary<string, HandleXmlTransformationElementDelegate>()
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{
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["ScaleTransform"] = HandleXmlTransformationElement_ScaleTransform,
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["SkewTransform"] = HandleXmlTransformationElement_SkewTransform,
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["RotateTransform"] = HandleXmlTransformationElement_RotateTransform,
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["TranslateTransform"] = HandleXmlTransformationElement_TranslateTransform
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};
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#region Utilities
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// https://stackoverflow.com/a/2961702
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private static T? ConvertValue<T>(string input) where T : struct
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{
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try
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{
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var converter = TypeDescriptor.GetConverter(typeof(T));
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if (converter != null)
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{
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// Cast ConvertFromString(string text) : object to (T)
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//return (T?)converter.ConvertFromString(input);
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return (T?)converter.ConvertFromInvariantString(input);
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}
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return default;
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}
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catch (NotSupportedException)
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{
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return default;
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}
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}
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private static string GetXmlAttribute(XElement element, string attributeName, string? defaultValue = null)
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{
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var attribute = element.Attribute(attributeName);
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if (attribute == null)
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{
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if (defaultValue != null)
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return defaultValue;
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throw new Exception($"Element {element.Name} is missing the {attributeName} attribute");
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}
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return attribute.Value.ToString();
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}
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private static T ParseXmlAttribute<T>(XElement element, string attributeName, T? defaultValue = null) where T : struct
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{
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var attribute = element.Attribute(attributeName);
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if (attribute == null)
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{
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if (defaultValue != null)
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return (T)defaultValue;
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throw new Exception($"Element {element.Name} is missing the {attributeName} attribute");
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}
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T? parsed = ConvertValue<T>(attribute.Value);
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if (parsed == null)
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throw new Exception($"{element.Name} height is not a valid {typeof(T).Name}");
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return (T)parsed;
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}
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private static void ValidateXmlElement(string elementName, string attributeName, int value, int? min = null, int? max = null)
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{
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if (min != null && value < min)
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throw new Exception($"{elementName} {attributeName} must be larger than {min}");
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if (max != null && value > max)
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throw new Exception($"{elementName} {attributeName} must be smaller than {max}");
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}
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private static void ValidateXmlElement(string elementName, string attributeName, double value, double? min = null, double? max = null)
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{
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if (min != null && value < min)
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throw new Exception($"{elementName} {attributeName} must be larger than {min}");
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if (max != null && value > max)
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throw new Exception($"{elementName} {attributeName} must be smaller than {max}");
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}
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// You can't do numeric only generics in .NET 6. The feature is exclusive to .NET 7+.
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private static double ParseXmlAttributeClamped(XElement element, string attributeName, double? defaultValue = null, double? min = null, double? max = null)
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{
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double value = ParseXmlAttribute<double>(element, attributeName, defaultValue);
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ValidateXmlElement(element.Name.ToString(), attributeName, value, min, max);
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return value;
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}
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private static int ParseXmlAttributeClamped(XElement element, string attributeName, int? defaultValue = null, int? min = null, int? max = null)
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{
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int value = ParseXmlAttribute<int>(element, attributeName, defaultValue);
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ValidateXmlElement(element.Name.ToString(), attributeName, value, min, max);
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return value;
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}
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private static object? GetThicknessFromXElement(XElement xmlElement, string attributeName)
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{
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string? attributeValue = xmlElement.Attribute(attributeName)?.Value?.ToString();
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if (attributeValue == null)
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return null;
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object? thickness;
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try
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{
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thickness = ThicknessConverter.ConvertFromInvariantString(attributeValue);
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}
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catch (Exception ex)
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{
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throw new Exception($"{xmlElement.Name} has invalid {attributeName}: {ex.Message}", ex);
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}
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if (thickness == null)
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throw new Exception($"{xmlElement.Name} has invalid {attributeName}");
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return thickness;
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}
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private static FontWeight GetFontWeightFromXElement(XElement element)
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{
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string? value = element.Attribute("FontWeight")?.Value?.ToString();
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if (string.IsNullOrEmpty(value))
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value = "Normal";
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// bruh
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// https://learn.microsoft.com/en-us/dotnet/api/system.windows.fontweights?view=windowsdesktop-6.0
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switch (value)
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{
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case "Thin":
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return FontWeights.Thin;
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case "ExtraLight":
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case "UltraLight":
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return FontWeights.ExtraLight;
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case "Medium":
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return FontWeights.Medium;
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case "Normal":
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case "Regular":
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return FontWeights.Normal;
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case "DemiBold":
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case "SemiBold":
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return FontWeights.DemiBold;
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case "Bold":
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return FontWeights.Bold;
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case "ExtraBold":
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case "UltraBold":
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return FontWeights.ExtraBold;
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case "Black":
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case "Heavy":
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return FontWeights.Black;
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case "ExtraBlack":
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case "UltraBlack":
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return FontWeights.UltraBlack;
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default:
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throw new Exception($"{element.Name} Unknown FontWeight {value}");
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}
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}
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private static FontStyle GetFontStyleFromXElement(XElement element)
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{
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string? value = element.Attribute("FontStyle")?.Value?.ToString();
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if (string.IsNullOrEmpty(value))
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value = "Normal";
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switch (value)
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{
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case "Normal":
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return FontStyles.Normal;
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case "Italic":
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return FontStyles.Italic;
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case "Oblique":
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return FontStyles.Oblique;
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default:
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throw new Exception($"{element.Name} Unknown FontStyle {value}");
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}
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}
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private static TextDecorationCollection? GetTextDecorationsFromXElement(XElement element)
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{
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string? value = element.Attribute("TextDecorations")?.Value?.ToString();
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if (string.IsNullOrEmpty(value))
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return null;
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switch (value)
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{
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case "Baseline":
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return TextDecorations.Baseline;
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case "OverLine":
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return TextDecorations.OverLine;
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case "Strikethrough":
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return TextDecorations.Strikethrough;
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case "Underline":
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return TextDecorations.Underline;
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default:
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throw new Exception($"{element.Name} Unknown TextDecorations {value}");
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}
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}
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/// <summary>
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/// Return type of string = Name of DynamicResource
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/// Return type of brush = ... The Brush!!!
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/// </summary>
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private static object? GetBrushFromXElement(XElement element, string attributeName)
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{
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string? value = element.Attribute(attributeName)?.Value?.ToString();
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if (value == null)
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return null;
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// dynamic resource name
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if (value.StartsWith('{') && value.EndsWith('}'))
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return value[1..^1];
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try
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{
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return BrushConverter.ConvertFromInvariantString(value);
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}
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catch (Exception ex)
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{
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throw new Exception($"{element.Name} has invalid {attributeName}: {ex.Message}", ex);
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}
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}
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#endregion
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#region Transformation Elements
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private static void HandleXmlTransformationElement_ScaleTransform(TransformGroup group, XElement xmlElement)
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{
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var st = new ScaleTransform();
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st.ScaleX = ParseXmlAttribute<double>(xmlElement, "ScaleX", 1);
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st.ScaleY = ParseXmlAttribute<double>(xmlElement, "ScaleY", 1);
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st.CenterX = ParseXmlAttribute<double>(xmlElement, "CenterX", 0);
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st.CenterY = ParseXmlAttribute<double>(xmlElement, "CenterY", 0);
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group.Children.Add(st);
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}
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private static void HandleXmlTransformationElement_SkewTransform(TransformGroup group, XElement xmlElement)
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{
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var st = new SkewTransform();
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st.AngleX = ParseXmlAttribute<double>(xmlElement, "AngleX", 0);
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st.AngleY = ParseXmlAttribute<double>(xmlElement, "AngleY", 0);
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st.CenterX = ParseXmlAttribute<double>(xmlElement, "CenterX", 0);
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st.CenterY = ParseXmlAttribute<double>(xmlElement, "CenterY", 0);
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group.Children.Add(st);
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}
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private static void HandleXmlTransformationElement_RotateTransform(TransformGroup group, XElement xmlElement)
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{
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var rt = new RotateTransform();
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rt.Angle = ParseXmlAttribute<double>(xmlElement, "Angle", 0);
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rt.CenterX = ParseXmlAttribute<double>(xmlElement, "CenterX", 0);
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rt.CenterY = ParseXmlAttribute<double>(xmlElement, "CenterY", 0);
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group.Children.Add(rt);
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}
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private static void HandleXmlTransformationElement_TranslateTransform(TransformGroup group, XElement xmlElement)
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{
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var tt = new TranslateTransform();
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tt.X = ParseXmlAttribute<double>(xmlElement, "X", 0);
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tt.Y = ParseXmlAttribute<double>(xmlElement, "Y", 0);
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group.Children.Add(tt);
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}
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private static void HandleXmlTransformation(TransformGroup group, XElement xmlElement)
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{
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if (!_transformationHandlerMap.ContainsKey(xmlElement.Name.ToString()))
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throw new Exception($"Unknown transformation {xmlElement.Name}");
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_transformationHandlerMap[xmlElement.Name.ToString()](group, xmlElement);
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}
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private static void ApplyTransformations_UIElement(UIElement uiElement, XElement xmlElement)
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{
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if (!xmlElement.HasElements)
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return;
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var tg = new TransformGroup();
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foreach (var child in xmlElement.Elements())
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HandleXmlTransformation(tg, child);
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if (tg.Children.Any())
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uiElement.RenderTransform = tg;
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}
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#endregion
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#region Elements
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private static void HandleXmlElement_FrameworkElement(CustomDialog dialog, FrameworkElement uiElement, XElement xmlElement)
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{
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// prevent two elements from having the same name
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string? name = xmlElement.Attribute("Name")?.Value?.ToString();
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if (name != null)
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{
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if (dialog.UsedNames.Contains(name))
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throw new Exception($"{xmlElement.Name} has duplicate name {name}");
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dialog.UsedNames.Add(name);
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}
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uiElement.Name = name;
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uiElement.Visibility = ParseXmlAttribute<Visibility>(xmlElement, "Visibility", Visibility.Visible);
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uiElement.IsEnabled = ParseXmlAttribute<bool>(xmlElement, "IsEnabled", true);
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object? margin = GetThicknessFromXElement(xmlElement, "Margin");
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if (margin != null)
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uiElement.Margin = (Thickness)margin;
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uiElement.Height = ParseXmlAttributeClamped(xmlElement, "Height", defaultValue: 100.0, min: 0, max: 1000);
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uiElement.Width = ParseXmlAttributeClamped(xmlElement, "Width", defaultValue: 100.0, min: 0, max: 1000);
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// default values of these were originally Stretch but that was no good
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uiElement.HorizontalAlignment = ParseXmlAttribute<HorizontalAlignment>(xmlElement, "HorizontalAlignment", HorizontalAlignment.Left);
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uiElement.VerticalAlignment = ParseXmlAttribute<VerticalAlignment>(xmlElement, "VerticalAlignment", VerticalAlignment.Top);
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int zIndex = ParseXmlAttributeClamped(xmlElement, "ZIndex", defaultValue: 0, min: 0, max: 1000);
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Panel.SetZIndex(uiElement, zIndex);
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}
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private static void HandleXmlElement_Control(CustomDialog dialog, Control uiElement, XElement xmlElement)
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{
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HandleXmlElement_FrameworkElement(dialog, uiElement, xmlElement);
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object? padding = GetThicknessFromXElement(xmlElement, "Padding");
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if (padding != null)
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uiElement.Padding = (Thickness)padding;
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object? borderThickness = GetThicknessFromXElement(xmlElement, "BorderThickness");
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if (borderThickness != null)
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uiElement.BorderThickness = (Thickness)borderThickness;
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object? foregroundBrush = GetBrushFromXElement(xmlElement, "Background");
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if (foregroundBrush is Brush)
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uiElement.Background = (Brush)foregroundBrush;
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else if (foregroundBrush is string)
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uiElement.SetResourceReference(Control.BackgroundProperty, foregroundBrush);
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object? borderBrush = GetBrushFromXElement(xmlElement, "BorderBrush");
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if (borderBrush is Brush)
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uiElement.BorderBrush = (Brush)borderBrush;
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else if (borderBrush is string)
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uiElement.SetResourceReference(Control.BorderBrushProperty, borderBrush);
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}
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private static void HandleXmlElement_BloxstrapCustomBootstrapper(CustomDialog dialog, XElement xmlElement)
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{
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xmlElement.SetAttributeValue("Visibility", "Collapsed"); // don't show the bootstrapper yet!!!
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xmlElement.SetAttributeValue("IsEnabled", "True");
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HandleXmlElement_Control(dialog, dialog, xmlElement);
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var theme = ParseXmlAttribute<Theme>(xmlElement, "Theme", Theme.Default);
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dialog.Resources.MergedDictionaries.Clear();
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dialog.Resources.MergedDictionaries.Add(new ThemesDictionary() { Theme = theme.GetFinal() == Theme.Dark ? Wpf.Ui.Appearance.ThemeType.Dark : Wpf.Ui.Appearance.ThemeType.Light });
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// set the margin & padding on the element grid
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dialog.ElementGrid.Margin = dialog.Margin;
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// TODO: put elementgrid inside a border?
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dialog.Margin = new Thickness(0, 0, 0, 0);
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dialog.Padding = new Thickness(0, 0, 0, 0);
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}
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private static void HandleXmlElement_TitleBar(CustomDialog dialog, XElement xmlElement)
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{
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xmlElement.SetAttributeValue("Name", "TitleBar"); // prevent two titlebars from existing
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xmlElement.SetAttributeValue("IsEnabled", "True");
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HandleXmlElement_Control(dialog, dialog.RootTitleBar, xmlElement);
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Panel.SetZIndex(dialog.RootTitleBar, 1001); // always show above others
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// properties we dont want modifiable
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dialog.RootTitleBar.Height = double.NaN;
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dialog.RootTitleBar.Width = double.NaN;
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dialog.RootTitleBar.HorizontalAlignment = HorizontalAlignment.Stretch;
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dialog.RootTitleBar.Margin = new Thickness(0, 0, 0, 0);
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dialog.RootTitleBar.ShowMinimize = ParseXmlAttribute<bool>(xmlElement, "ShowMinimize", true);
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dialog.RootTitleBar.ShowClose = ParseXmlAttribute<bool>(xmlElement, "ShowClose", true);
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string? title = xmlElement.Attribute("Title")?.Value?.ToString() ?? "Bloxstrap";
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dialog.Title = title;
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dialog.RootTitleBar.Title = title;
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}
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private static void HandleXmlElement_Button(CustomDialog dialog, XElement xmlElement)
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{
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var button = new Button();
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HandleXmlElement_Control(dialog, button, xmlElement);
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button.Content = xmlElement.Attribute("Text")?.Value?.ToString();
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if (xmlElement.Attribute("Name")?.Value == "CancelButton")
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{
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Binding cancelEnabledBinding = new Binding("CancelEnabled") { Mode = BindingMode.OneWay };
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BindingOperations.SetBinding(button, Button.IsEnabledProperty, cancelEnabledBinding);
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Binding cancelCommandBinding = new Binding("CancelInstallCommand");
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BindingOperations.SetBinding(button, Button.CommandProperty, cancelCommandBinding);
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}
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ApplyTransformations_UIElement(button, xmlElement);
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dialog.ElementGrid.Children.Add(button);
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}
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private static void HandleXmlElement_ProgressBar(CustomDialog dialog, XElement xmlElement)
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{
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var progressBar = new ProgressBar();
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HandleXmlElement_Control(dialog, progressBar, xmlElement);
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progressBar.IsIndeterminate = ParseXmlAttribute<bool>(xmlElement, "IsIndeterminate", false);
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progressBar.Value = ParseXmlAttribute<double>(xmlElement, "Value", 0);
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progressBar.Maximum = ParseXmlAttribute<double>(xmlElement, "Maximum", 100);
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if (xmlElement.Attribute("Name")?.Value == "PrimaryProgressBar")
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{
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Binding isIndeterminateBinding = new Binding("ProgressIndeterminate") { Mode = BindingMode.OneWay };
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BindingOperations.SetBinding(progressBar, ProgressBar.IsIndeterminateProperty, isIndeterminateBinding);
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Binding maximumBinding = new Binding("ProgressMaximum") { Mode = BindingMode.OneWay };
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BindingOperations.SetBinding(progressBar, ProgressBar.MaximumProperty, maximumBinding);
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Binding valueBinding = new Binding("ProgressValue") { Mode = BindingMode.OneWay };
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BindingOperations.SetBinding(progressBar, ProgressBar.ValueProperty, valueBinding);
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}
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ApplyTransformations_UIElement(progressBar, xmlElement);
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dialog.ElementGrid.Children.Add(progressBar);
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}
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private static void HandleXmlElement_TextBlock(CustomDialog dialog, XElement xmlElement)
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{
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var textBlock = new TextBlock();
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HandleXmlElement_FrameworkElement(dialog, textBlock, xmlElement);
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textBlock.Text = xmlElement.Attribute("Text")?.Value;
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object? foregroundBrush = GetBrushFromXElement(xmlElement, "Foreground");
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if (foregroundBrush is Brush)
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textBlock.Foreground = (Brush)foregroundBrush;
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else if (foregroundBrush is string)
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textBlock.SetResourceReference(TextBlock.ForegroundProperty, foregroundBrush);
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textBlock.FontSize = ParseXmlAttribute<double>(xmlElement, "FontSize", 12);
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textBlock.FontWeight = GetFontWeightFromXElement(xmlElement);
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textBlock.FontStyle = GetFontStyleFromXElement(xmlElement);
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textBlock.LineHeight = ParseXmlAttribute<double>(xmlElement, "LineHeight", double.NaN);
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textBlock.LineStackingStrategy = ParseXmlAttribute<LineStackingStrategy>(xmlElement, "LineStackingStrategy", LineStackingStrategy.MaxHeight);
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|
textBlock.TextAlignment = ParseXmlAttribute<TextAlignment>(xmlElement, "TextAlignment", TextAlignment.Center);
|
|
textBlock.TextTrimming = ParseXmlAttribute<TextTrimming>(xmlElement, "TextTrimming", TextTrimming.None);
|
|
textBlock.TextWrapping = ParseXmlAttribute<TextWrapping>(xmlElement, "TextWrapping", TextWrapping.NoWrap);
|
|
textBlock.TextDecorations = GetTextDecorationsFromXElement(xmlElement);
|
|
|
|
textBlock.IsHyphenationEnabled = ParseXmlAttribute<bool>(xmlElement, "IsHyphenationEnabled", false);
|
|
textBlock.BaselineOffset = ParseXmlAttribute<double>(xmlElement, "BaselineOffset", double.NaN);
|
|
|
|
object? padding = GetThicknessFromXElement(xmlElement, "Padding");
|
|
if (padding != null)
|
|
textBlock.Padding = (Thickness)padding;
|
|
|
|
if (xmlElement.Attribute("Name")?.Value == "StatusText")
|
|
{
|
|
Binding textBinding = new Binding("Message") { Mode = BindingMode.OneWay };
|
|
BindingOperations.SetBinding(textBlock, TextBlock.TextProperty, textBinding);
|
|
}
|
|
|
|
ApplyTransformations_UIElement(textBlock, xmlElement);
|
|
|
|
dialog.ElementGrid.Children.Add(textBlock);
|
|
}
|
|
|
|
private static void HandleXmlElement_Image(CustomDialog dialog, XElement xmlElement)
|
|
{
|
|
var image = new Image();
|
|
HandleXmlElement_FrameworkElement(dialog, image, xmlElement);
|
|
|
|
image.Stretch = ParseXmlAttribute<Stretch>(xmlElement, "Stretch", Stretch.Uniform);
|
|
image.StretchDirection = ParseXmlAttribute<StretchDirection>(xmlElement, "StretchDirection", StretchDirection.Both);
|
|
|
|
string sourcePath = GetXmlAttribute(xmlElement, "Source");
|
|
sourcePath = sourcePath.Replace("theme://", $"{dialog.ThemeDir}\\");
|
|
|
|
RenderOptions.SetBitmapScalingMode(image, BitmapScalingMode.HighQuality); // should this be modifiable by the user?
|
|
|
|
if (sourcePath == "{Icon}")
|
|
{
|
|
// bind the icon property
|
|
Binding binding = new Binding("Icon") { Mode = BindingMode.OneWay };
|
|
BindingOperations.SetBinding(image, Image.SourceProperty, binding);
|
|
}
|
|
else
|
|
{
|
|
if (!Uri.TryCreate(sourcePath, UriKind.RelativeOrAbsolute, out Uri? result))
|
|
throw new Exception("Image failed to parse Source as Uri");
|
|
|
|
if (result == null)
|
|
throw new Exception("Image Source uri is null");
|
|
|
|
bool isAnimated = ParseXmlAttribute<bool>(xmlElement, "IsAnimated", false);
|
|
if (!isAnimated)
|
|
{
|
|
BitmapImage bitmapImage;
|
|
try
|
|
{
|
|
bitmapImage = new BitmapImage(result);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw new Exception($"Image Failed to create BitmapImage: {ex.Message}", ex);
|
|
}
|
|
|
|
image.Source = bitmapImage;
|
|
}
|
|
else
|
|
{
|
|
XamlAnimatedGif.AnimationBehavior.SetSourceUri(image, result);
|
|
}
|
|
}
|
|
|
|
ApplyTransformations_UIElement(image, xmlElement);
|
|
|
|
dialog.ElementGrid.Children.Add(image);
|
|
}
|
|
|
|
private void HandleXml(CustomDialog dialog, XElement xmlElement)
|
|
{
|
|
if (!_elementHandlerMap.ContainsKey(xmlElement.Name.ToString()))
|
|
throw new Exception($"Unknown element {xmlElement.Name}");
|
|
|
|
_elementHandlerMap[xmlElement.Name.ToString()](dialog, xmlElement);
|
|
}
|
|
|
|
private void HandleXmlBase(XElement xml)
|
|
{
|
|
if (_initialised)
|
|
throw new Exception("Custom dialog has already been initialised");
|
|
|
|
if (xml.Name != "BloxstrapCustomBootstrapper")
|
|
throw new Exception("XML root is not a BloxstrapCustomBootstrapper");
|
|
|
|
if (xml.Attribute("Version")?.Value != "0")
|
|
throw new Exception("Unknown BloxstrapCustomBootstrapper version");
|
|
|
|
if (xml.Elements().Count() > MaxElements)
|
|
throw new Exception($"Custom bootstrappers can have a maximum of {MaxElements} elements");
|
|
|
|
_initialised = true;
|
|
|
|
// handle root
|
|
HandleXmlElement_BloxstrapCustomBootstrapper(this, xml);
|
|
|
|
// handle everything else
|
|
foreach (var child in xml.Elements())
|
|
HandleXml(this, child);
|
|
}
|
|
#endregion
|
|
|
|
#region Public APIs
|
|
public void ApplyCustomTheme(string name, string contents)
|
|
{
|
|
ThemeDir = Path.Combine(Paths.CustomThemes, name);
|
|
|
|
XElement xml;
|
|
|
|
try
|
|
{
|
|
using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(contents)))
|
|
xml = XElement.Load(ms);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw new Exception($"XML parse failed: {ex.Message}", ex);
|
|
}
|
|
|
|
HandleXmlBase(xml);
|
|
}
|
|
|
|
public void ApplyCustomTheme(string name)
|
|
{
|
|
string path = Path.Combine(Paths.CustomThemes, name, "Theme.xml");
|
|
|
|
ApplyCustomTheme(name, File.ReadAllText(path));
|
|
}
|
|
#endregion
|
|
}
|
|
}
|