Files
covenant-setup/authoring-ui/MainWindow.cs
T
2026-06-11 12:18:42 -05:00

1392 lines
46 KiB
C#

using System.Collections.ObjectModel;
using System.Runtime.InteropServices;
using Microsoft.UI;
using Microsoft.UI.Dispatching;
using Microsoft.UI.Input;
using Microsoft.UI.Text;
using Microsoft.UI.Windowing;
using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Automation;
using Microsoft.UI.Xaml.Controls;
using Microsoft.UI.Xaml.Data;
using Microsoft.UI.Xaml.Input;
using Microsoft.UI.Xaml.Media;
using Windows.UI;
using Windows.UI.ViewManagement;
using Windows.ApplicationModel.DataTransfer;
using Windows.Graphics;
using Windows.Storage;
using Windows.Storage.Pickers;
using WinRT.Interop;
namespace Covenant.Setup.Authoring;
internal sealed class MainWindow : Window
{
private readonly MainViewModel _viewModel = new();
private readonly InstallerConfigViewModel _installerConfigViewModel = new();
private readonly List<Border> _sectionBorders = [];
private readonly List<Border> _rowBorders = [];
private readonly List<TextBlock> _secondaryTextBlocks = [];
private TextBlock _statusText = null!;
private TextBox _previewBox = null!;
private Button _copyPreviewButton = null!;
private Button _generateInstallerButton = null!;
private Grid _rootGrid = null!;
private ScrollView _editorScroll = null!;
private ColumnSplitter _paneSplitter = null!;
private ToggleSwitch _themeToggle = null!;
// Keep the subclass delegate alive for the window's lifetime so the GC
// cannot collect the thunk the OS window procedure chain is calling into.
private SubclassProc? _wheelSubclassProc;
private IntPtr _hwnd;
private long _lastXamlWheelTick;
private const double EditorMinWidth = 360;
private const double PreviewMinWidth = 320;
private string? _lastSavedManifestPath;
private bool _isPackaging;
private int _copyPreviewFeedbackVersion;
private bool _syncingThemeToggle;
private bool _usingSystemTheme;
public MainWindow()
{
Title = "Covenant Setup Manifest Authoring";
Content = BuildContent();
ApplyInitialTheme();
ConfigureWindow();
_viewModel.PropertyChanged += (_, args) =>
{
if (args.PropertyName == nameof(MainViewModel.HasValidationErrors))
{
RefreshStatusBrush();
}
if (args.PropertyName is nameof(MainViewModel.HasCovenantSetupTool)
or nameof(MainViewModel.CanPackage))
{
RefreshPackageControls();
}
};
RefreshStatusBrush();
RefreshPackageControls();
}
private Grid BuildContent()
{
var root = new Grid
{
Padding = new Thickness(8),
RowSpacing = 8,
ColumnSpacing = 8,
DataContext = _viewModel
};
_rootGrid = root;
root.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
root.RowDefinitions.Add(new RowDefinition { Height = new GridLength(1, GridUnitType.Star) });
root.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
var editorColumn = new ColumnDefinition { Width = new GridLength(480), MinWidth = EditorMinWidth };
var previewColumn = new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star), MinWidth = PreviewMinWidth };
root.ColumnDefinitions.Add(editorColumn);
root.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
root.ColumnDefinitions.Add(previewColumn);
var header = BuildHeader();
Grid.SetRow(header, 0);
Grid.SetColumnSpan(header, 3);
root.Children.Add(header);
var editor = BuildEditor();
Grid.SetRow(editor, 1);
Grid.SetColumn(editor, 0);
root.Children.Add(editor);
_paneSplitter = new ColumnSplitter(editorColumn, previewColumn, EditorMinWidth, PreviewMinWidth);
Grid.SetRow(_paneSplitter, 1);
Grid.SetColumn(_paneSplitter, 1);
root.Children.Add(_paneSplitter);
var preview = BuildPreview();
Grid.SetRow(preview, 1);
Grid.SetColumn(preview, 2);
root.Children.Add(preview);
_statusText = new TextBlock
{
TextWrapping = TextWrapping.Wrap,
MaxLines = 3
};
_statusText.SetBinding(
TextBlock.TextProperty,
new Binding
{
Path = new PropertyPath(nameof(MainViewModel.ValidationSummary)),
Mode = BindingMode.OneWay
});
Grid.SetRow(_statusText, 2);
Grid.SetColumnSpan(_statusText, 3);
root.Children.Add(_statusText);
return root;
}
private Grid BuildHeader()
{
var header = new Grid { ColumnSpacing = 12 };
header.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
header.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
var titleStack = new StackPanel { Spacing = 2 };
titleStack.Children.Add(new TextBlock
{
Text = "Manifest Authoring",
FontSize = 22,
FontWeight = FontWeights.SemiBold
});
var subtitle = new TextBlock();
_secondaryTextBlocks.Add(subtitle);
subtitle.SetBinding(
TextBlock.TextProperty,
new Binding
{
Path = new PropertyPath(nameof(MainViewModel.ManifestSubtitle)),
Mode = BindingMode.OneWay
});
titleStack.Children.Add(subtitle);
Grid.SetColumn(titleStack, 0);
header.Children.Add(titleStack);
var actions = new StackPanel
{
Orientation = Orientation.Horizontal,
HorizontalAlignment = HorizontalAlignment.Right,
Spacing = 8
};
var themeControl = new StackPanel
{
Orientation = Orientation.Horizontal,
VerticalAlignment = VerticalAlignment.Center,
Spacing = 6
};
themeControl.Children.Add(new TextBlock
{
Text = "Light",
VerticalAlignment = VerticalAlignment.Center
});
_themeToggle = new ToggleSwitch
{
OnContent = "Dark",
OffContent = string.Empty,
MinWidth = 72
};
_themeToggle.Toggled += (_, _) => ToggleTheme();
themeControl.Children.Add(_themeToggle);
actions.Children.Add(themeControl);
var validateButton = new Button { Content = "Validate", MinWidth = 92 };
validateButton.Click += async (_, _) => await ShowValidationAsync();
actions.Children.Add(validateButton);
var installerConfigButton = new Button { Content = "Installer Config", MinWidth = 124 };
installerConfigButton.Click += async (_, _) => await ShowInstallerConfigAsync();
actions.Children.Add(installerConfigButton);
_generateInstallerButton = new Button { Content = "Save and Build", MinWidth = 124 };
_generateInstallerButton.Click += async (_, _) => await GenerateInstallerAsync();
actions.Children.Add(_generateInstallerButton);
var saveButton = new Button { Content = "Save TOML", MinWidth = 104 };
saveButton.Click += async (_, _) => await SaveManifestAsync();
actions.Children.Add(saveButton);
Grid.SetColumn(actions, 1);
header.Children.Add(actions);
return header;
}
private ScrollView BuildEditor()
{
var stack = new StackPanel { Spacing = 12 };
stack.Children.Add(BuildAppSection());
stack.Children.Add(BuildDirectoriesSection());
stack.Children.Add(BuildFilesSection());
stack.Children.Add(BuildRegistrySection());
stack.Children.Add(BuildShortcutsSection());
stack.Children.Add(BuildScriptsSection());
// ScrollView (not the legacy ScrollViewer) on purpose: the legacy control
// scrolls through the OS DirectManipulation service, which consumes wheel
// input below the XAML layer and then drops it for WinUI 3 windows
// (microsoft-ui-xaml #8764 / #10091 / #10480 — wheel dead, scrollbar drag
// fine). ScrollView drives InteractionTracker from XAML pointer events, so
// DirectManipulation never claims the wheel over the editor.
_editorScroll = new ScrollView
{
VerticalScrollBarVisibility = ScrollingScrollBarVisibility.Auto,
Content = stack
};
return _editorScroll;
}
private Grid BuildPreview()
{
var preview = new Grid { RowSpacing = 8 };
preview.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
preview.RowDefinitions.Add(new RowDefinition { Height = new GridLength(1, GridUnitType.Star) });
var header = new Grid { ColumnSpacing = 8 };
header.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
header.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
header.Children.Add(new TextBlock
{
Text = "TOML Preview",
FontSize = 16,
FontWeight = FontWeights.SemiBold,
VerticalAlignment = VerticalAlignment.Center
});
_copyPreviewButton = new Button { Content = "Copy", MinWidth = 80 };
AutomationProperties.SetName(_copyPreviewButton, "Copy TOML preview");
_copyPreviewButton.Click += async (_, _) => await CopyPreviewAsync();
Grid.SetColumn(_copyPreviewButton, 1);
header.Children.Add(_copyPreviewButton);
Grid.SetRow(header, 0);
preview.Children.Add(header);
_previewBox = new TextBox
{
AcceptsReturn = true,
FontFamily = new FontFamily("Consolas"),
FontSize = 13,
IsReadOnly = true,
TextWrapping = TextWrapping.NoWrap
};
_previewBox.SetBinding(
TextBox.TextProperty,
new Binding
{
Path = new PropertyPath(nameof(MainViewModel.TomlPreview)),
Mode = BindingMode.OneWay
});
ScrollViewer.SetHorizontalScrollBarVisibility(_previewBox, ScrollBarVisibility.Auto);
ScrollViewer.SetVerticalScrollBarVisibility(_previewBox, ScrollBarVisibility.Auto);
Grid.SetRow(_previewBox, 1);
preview.Children.Add(_previewBox);
return preview;
}
private FrameworkElement BuildAppSection()
{
var appNameBox = BoundTextBox(nameof(MainViewModel.AppName), "App name");
var folderBox = BoundTextBox(nameof(MainViewModel.ApplicationFolder), "Application target installation folder");
var payloadBox = BoundTextBox(nameof(MainViewModel.PrimaryPayload), @"payload\app.exe");
var rootCombo = new ComboBox
{
ItemsSource = ManifestTokens.KnownPathTokens,
SelectedItem = _viewModel.InstallRootToken,
MinWidth = 180
};
rootCombo.SelectionChanged += (_, _) =>
{
if (rootCombo.SelectedItem is string token)
{
_viewModel.InstallRootToken = token;
}
};
return Section(
"App",
Labeled("Name", appNameBox),
TwoColumn(
Labeled("Payload App Install Root", rootCombo),
Labeled("Application Target Installation Folder", folderBox)),
Labeled("Primary Payload", payloadBox));
}
private FrameworkElement BuildDirectoriesSection()
{
var pathBox = new TextBox();
pathBox.SetBinding(
TextBox.PlaceholderTextProperty,
new Binding
{
Path = new PropertyPath(nameof(MainViewModel.DirectoryPlaceholder)),
Mode = BindingMode.OneWay
});
var rows = RemovableRows(_viewModel.Directories);
var addButton = new Button { Content = "Add Path", MinWidth = 88 };
addButton.Click += (_, _) =>
{
_viewModel.AddDirectory(pathBox.Text);
pathBox.Text = string.Empty;
};
return Section(
"Directory Paths",
InputRow(pathBox, addButton),
rows);
}
private FrameworkElement BuildFilesSection()
{
var sourceBox = new TextBox { PlaceholderText = @"payload\app.exe" };
var destinationBox = new TextBox();
destinationBox.SetBinding(
TextBox.PlaceholderTextProperty,
new Binding
{
Path = new PropertyPath(nameof(MainViewModel.FileDestinationPlaceholder)),
Mode = BindingMode.OneWay
});
var rows = RemovableRows(_viewModel.Files);
var addButton = new Button { Content = "Add", MinWidth = 72 };
addButton.Click += async (_, _) =>
{
if (string.IsNullOrWhiteSpace(sourceBox.Text) || string.IsNullOrWhiteSpace(destinationBox.Text))
{
await ShowNoticeAsync("File Entry", "Source and destination are required.");
return;
}
_viewModel.AddFile(sourceBox.Text, destinationBox.Text);
sourceBox.Text = string.Empty;
destinationBox.Text = string.Empty;
};
return Section(
"Files",
TwoColumn(Labeled("Source", sourceBox), Labeled("Destination", destinationBox)),
AlignRight(addButton),
rows);
}
private FrameworkElement BuildRegistrySection()
{
var keyBox = new TextBox { PlaceholderText = @"HKCU\Software\VendorApp" };
var nameBox = new TextBox { PlaceholderText = "InstallRoot" };
var valueBox = new TextBox();
valueBox.SetBinding(
TextBox.PlaceholderTextProperty,
new Binding
{
Path = new PropertyPath(nameof(MainViewModel.DirectoryPlaceholder)),
Mode = BindingMode.OneWay
});
var rows = RemovableRows(_viewModel.Registry);
var addButton = new Button { Content = "Add", MinWidth = 72 };
addButton.Click += async (_, _) =>
{
if (string.IsNullOrWhiteSpace(keyBox.Text) ||
string.IsNullOrWhiteSpace(nameBox.Text) ||
string.IsNullOrWhiteSpace(valueBox.Text))
{
await ShowNoticeAsync("Registry Entry", "Key, name, and value are required.");
return;
}
_viewModel.AddRegistry(keyBox.Text, nameBox.Text, valueBox.Text);
keyBox.Text = string.Empty;
nameBox.Text = string.Empty;
valueBox.Text = string.Empty;
};
return Section(
"Registry",
Labeled("Key", keyBox),
TwoColumn(Labeled("Name", nameBox), Labeled("Value", valueBox)),
AlignRight(addButton),
rows);
}
private FrameworkElement BuildShortcutsSection()
{
var descriptionBox = BoundTextBox(nameof(MainViewModel.ShortcutDescription), "Launch application");
return Section(
"Shortcuts",
Labeled("Description", descriptionBox));
}
private FrameworkElement BuildScriptsSection()
{
var commandBox = new TextBox { PlaceholderText = "powershell" };
var argsBox = new TextBox
{
AcceptsReturn = true,
Height = 76,
PlaceholderText = "-ExecutionPolicy"
};
var workingDirectoryBox = new TextBox();
workingDirectoryBox.SetBinding(
TextBox.PlaceholderTextProperty,
new Binding
{
Path = new PropertyPath(nameof(MainViewModel.DirectoryPlaceholder)),
Mode = BindingMode.OneWay
});
var rows = RemovableRows(_viewModel.Scripts);
var addButton = new Button { Content = "Add", MinWidth = 72 };
addButton.Click += async (_, _) =>
{
if (string.IsNullOrWhiteSpace(commandBox.Text))
{
await ShowNoticeAsync("Script Entry", "Command is required.");
return;
}
_viewModel.AddScript(
commandBox.Text,
SplitLines(argsBox.Text),
workingDirectoryBox.Text);
commandBox.Text = string.Empty;
argsBox.Text = string.Empty;
workingDirectoryBox.Text = string.Empty;
};
return Section(
"Scripts",
Labeled("Command", commandBox),
Labeled("Arguments", argsBox),
Labeled("Working Directory", workingDirectoryBox),
AlignRight(addButton),
rows);
}
private async Task ShowInstallerConfigAsync()
{
_installerConfigViewModel.SetManifestValidationState(_viewModel.HasValidationErrors);
_installerConfigViewModel.IsBuilding = _isPackaging;
var dialog = new InstallerConfigDialog(
_installerConfigViewModel,
WindowNative.GetWindowHandle(this));
if (Content is FrameworkElement root)
{
dialog.XamlRoot = root.XamlRoot;
}
var result = await dialog.ShowAsync();
if (result == ContentDialogResult.Primary)
{
_viewModel.SetCovenantSetupTool(_installerConfigViewModel.CovenantSetupTool);
_viewModel.OutputDirectory = _installerConfigViewModel.OutputDirectory;
RefreshPackageControls();
}
}
private async Task SaveManifestAsync()
{
var manifestPath = await WriteManifestWithPickerAsync(showNotice: true);
if (manifestPath is not null)
{
_lastSavedManifestPath = manifestPath;
}
}
private async Task<string?> WriteManifestWithPickerAsync(bool showNotice)
{
return await WriteManifestWithPickerAsync(showNotice, ShowNoticeAsync);
}
private async Task<string?> WriteManifestWithPickerAsync(
bool showNotice,
Func<string, string, Task> showMessageAsync)
{
var validation = _viewModel.Validate();
if (!validation.IsValid)
{
await showMessageAsync("Validation", string.Join(Environment.NewLine, validation.Errors));
return null;
}
if (!string.IsNullOrWhiteSpace(_lastSavedManifestPath) &&
!_viewModel.IsExpectedManifestPath(_lastSavedManifestPath))
{
_lastSavedManifestPath = null;
}
if (!string.IsNullOrWhiteSpace(_lastSavedManifestPath))
{
await File.WriteAllTextAsync(_lastSavedManifestPath, _viewModel.TomlPreview);
if (showNotice)
{
await showMessageAsync("Manifest Saved", _lastSavedManifestPath);
}
return _lastSavedManifestPath;
}
var picker = new FileSavePicker();
InitializeWithWindow.Initialize(picker, WindowNative.GetWindowHandle(this));
picker.SuggestedStartLocation = PickerLocationId.DocumentsLibrary;
picker.FileTypeChoices.Add("TOML manifest", [".toml"]);
picker.SuggestedFileName = _viewModel.ExpectedManifestFileName;
var file = await picker.PickSaveFileAsync();
if (file is null)
{
return null;
}
if (!_viewModel.IsExpectedManifestPath(file.Path))
{
await showMessageAsync(
"Manifest File Name",
MainViewModel.ContainsWhitespace(file.Path)
? "The manifest path cannot contain spaces. Save the manifest as " + _viewModel.ExpectedManifestFileName + " in a folder path without spaces."
: "Save the manifest as " + _viewModel.ExpectedManifestFileName + ".");
return null;
}
await FileIO.WriteTextAsync(file, _viewModel.TomlPreview);
if (showNotice)
{
await showMessageAsync("Manifest Saved", file.Path);
}
return file.Path;
}
private async Task GenerateInstallerAsync(Func<string, string, Task>? showMessageAsync = null)
{
showMessageAsync ??= ShowNoticeAsync;
var tool = _viewModel.CovenantSetupTool;
if (tool is null)
{
await showMessageAsync("Installer EXE", "covenant-setup.exe was not found. Packaging is disabled.");
return;
}
var validation = _viewModel.Validate();
if (!validation.IsValid)
{
await showMessageAsync("Validation", string.Join(Environment.NewLine, validation.Errors));
return;
}
if (string.IsNullOrWhiteSpace(_viewModel.OutputDirectory))
{
await showMessageAsync("Installer EXE", "Choose an output directory before packaging.");
return;
}
var manifestPath = await WriteManifestWithPickerAsync(showNotice: false, showMessageAsync);
if (manifestPath is null)
{
return;
}
_lastSavedManifestPath = manifestPath;
_isPackaging = true;
_installerConfigViewModel.IsBuilding = true;
RefreshPackageControls();
try
{
var result = await CovenantSetupPackager.PackageAsync(
tool,
manifestPath,
_viewModel.OutputDirectory,
CancellationToken.None);
var message = result.Succeeded
? "Generated installer in " + _viewModel.OutputDirectory
: $"Packaging failed with exit code {result.ExitCode}.";
var detail = string.Join(
Environment.NewLine + Environment.NewLine,
new[] { message, result.Output, result.Error }.Where(part => !string.IsNullOrWhiteSpace(part)));
await showMessageAsync("Installer EXE", detail);
}
catch (Exception ex)
{
await showMessageAsync("Installer EXE", "Packaging failed: " + ex.Message);
}
finally
{
_isPackaging = false;
_installerConfigViewModel.IsBuilding = false;
RefreshPackageControls();
}
}
private async Task ShowValidationAsync()
{
var validation = _viewModel.Validate();
var message = validation.Errors.Count > 0
? string.Join(Environment.NewLine, validation.Errors)
: validation.Warnings.Count > 0
? string.Join(Environment.NewLine, validation.Warnings)
: "Manifest is ready to save.";
await ShowNoticeAsync("Validation", message);
}
private async Task CopyPreviewAsync()
{
var data = new DataPackage();
data.SetText(_viewModel.TomlPreview);
Clipboard.SetContent(data);
await ShowCopyPreviewCopiedAsync();
}
private async Task ShowCopyPreviewCopiedAsync()
{
var version = ++_copyPreviewFeedbackVersion;
var brushes = CreateThemeBrushes();
_copyPreviewButton.Content = new FontIcon
{
FontFamily = new FontFamily("Segoe MDL2 Assets"),
FontSize = 16,
Glyph = "\uE8FB",
Foreground = brushes.SuccessText
};
AutomationProperties.SetName(_copyPreviewButton, "Copied");
await Task.Delay(TimeSpan.FromSeconds(1));
if (version != _copyPreviewFeedbackVersion)
{
return;
}
_copyPreviewButton.Content = "Copy";
AutomationProperties.SetName(_copyPreviewButton, "Copy TOML preview");
}
private async Task ShowNoticeAsync(string title, string message)
{
var dialog = new ContentDialog
{
Title = title,
CloseButtonText = "OK",
Content = new TextBlock
{
Text = message,
TextWrapping = TextWrapping.Wrap,
MaxWidth = 560
}
};
if (Content is FrameworkElement root)
{
dialog.XamlRoot = root.XamlRoot;
}
_ = await dialog.ShowAsync();
}
private void ConfigureWindow()
{
var hwnd = WindowNative.GetWindowHandle(this);
var windowId = Win32Interop.GetWindowIdFromWindow(hwnd);
var appWindow = AppWindow.GetFromWindowId(windowId);
appWindow.Title = Title;
const int width = 1240;
const int height = 820;
var displayArea = DisplayArea.GetFromWindowId(windowId, DisplayAreaFallback.Primary);
var workArea = displayArea.WorkArea;
var x = workArea.X + Math.Max(0, (workArea.Width - width) / 2);
var y = workArea.Y + Math.Max(0, (workArea.Height - height) / 2);
appWindow.MoveAndResize(new RectInt32(x, y, width, height));
_hwnd = hwnd;
InstallRawWheelFallback();
Closed += (_, _) => RemoveRawWheelFallback();
}
// On some machines WinUI 3 never delivers bare mouse-wheel input to the app:
// the OS DirectManipulation service (kept active on the window's input HWND
// by the legacy ScrollViewers inside every TextBox) claims the wheel below
// the message layer and then drops it because it mis-judges the window's
// activation state (microsoft-ui-xaml #8764 / #10091 / #10480). No window
// message, XAML pointer event, or InteractionTracker input ever fires.
// Raw Input is a parallel delivery channel DirectManipulation cannot
// intercept, so we register for mouse raw input and scroll the pane under
// the cursor ourselves. When the normal pipeline IS alive (healthy
// machines), the XAML wheel event recorded below makes the fallback bow out
// so nothing scrolls twice.
private void InstallRawWheelFallback()
{
if (_wheelSubclassProc is not null)
{
return;
}
_wheelSubclassProc = WheelInputSubclassProc;
if (!SetWindowSubclass(_hwnd, _wheelSubclassProc, 1, IntPtr.Zero))
{
_wheelSubclassProc = null;
return;
}
var device = new RAWINPUTDEVICE
{
UsagePage = 0x01, // HID_USAGE_PAGE_GENERIC
Usage = 0x02, // HID_USAGE_GENERIC_MOUSE
Flags = 0, // deliver while this window's thread is foreground
Target = _hwnd
};
RegisterRawInputDevices([device], 1, (uint)Marshal.SizeOf<RAWINPUTDEVICE>());
_rootGrid.AddHandler(
UIElement.PointerWheelChangedEvent,
new PointerEventHandler((_, _) => _lastXamlWheelTick = Environment.TickCount64),
handledEventsToo: true);
}
private void RemoveRawWheelFallback()
{
if (_wheelSubclassProc is not null)
{
RemoveWindowSubclass(_hwnd, _wheelSubclassProc, 1);
_wheelSubclassProc = null;
}
}
private IntPtr WheelInputSubclassProc(
IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam, UIntPtr idSubclass, IntPtr refData)
{
if (msg == WM_INPUT)
{
try
{
HandleRawWheelInput(lParam);
}
catch
{
// Never let an input-path failure take down the window procedure.
}
}
return DefSubclassProc(hWnd, msg, wParam, lParam);
}
private void HandleRawWheelInput(IntPtr rawInputHandle)
{
var size = (uint)Marshal.SizeOf<RAWINPUT>();
if (GetRawInputData(rawInputHandle, RID_INPUT, out var raw, ref size, (uint)Marshal.SizeOf<RAWINPUTHEADER>())
== unchecked((uint)-1))
{
return;
}
if (raw.Header.Type != RIM_TYPEMOUSE || (raw.Mouse.ButtonFlags & RI_MOUSE_WHEEL) == 0)
{
return;
}
var delta = (short)raw.Mouse.ButtonData;
if (delta == 0 || (GetKeyState(VK_CONTROL) & 0x8000) != 0)
{
return; // Ctrl+wheel is zoom and does reach the XAML pipeline.
}
// Give a healthy XAML wheel event (already ahead of us in the queue) a
// chance to run first; if it does, the normal pipeline owns scrolling.
var stamp = Environment.TickCount64;
DispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, () =>
{
var xamlSawThisNotch = _lastXamlWheelTick >= stamp - 32;
var xamlRecentlyAlive = Environment.TickCount64 - _lastXamlWheelTick <= 250;
if (!xamlSawThisNotch && !xamlRecentlyAlive)
{
ScrollPaneUnderCursor(delta);
}
});
}
private void ScrollPaneUnderCursor(short delta)
{
if (_rootGrid?.XamlRoot is null || !GetCursorPos(out var screen))
{
return;
}
var hit = WindowFromPoint(screen);
if (hit != _hwnd && GetAncestor(hit, GA_ROOT) != _hwnd)
{
return;
}
// A ContentDialog overlays the panes inside the same HWND; don't scroll
// what's underneath it.
if (VisualTreeHelper.GetOpenPopupsForXamlRoot(_rootGrid.XamlRoot).Count > 0)
{
return;
}
var client = screen;
if (!ScreenToClient(_hwnd, ref client))
{
return;
}
var scale = _rootGrid.XamlRoot.RasterizationScale;
if (scale <= 0)
{
scale = 1;
}
var cursor = new Windows.Foundation.Point(client.X / scale, client.Y / scale);
if (IsOver(_editorScroll, cursor))
{
_editorScroll.ScrollBy(0, -delta, new ScrollingScrollOptions(ScrollingAnimationMode.Disabled));
}
else if (IsOver(_previewBox, cursor))
{
var inner = FindDescendant<ScrollViewer>(_previewBox);
inner?.ChangeView(null, inner.VerticalOffset - delta, null, disableAnimation: true);
}
}
private static bool IsOver(FrameworkElement? element, Windows.Foundation.Point cursor)
{
if (element?.XamlRoot is null)
{
return false;
}
var origin = element.TransformToVisual(null).TransformPoint(new Windows.Foundation.Point(0, 0));
return cursor.X >= origin.X && cursor.X <= origin.X + element.ActualWidth
&& cursor.Y >= origin.Y && cursor.Y <= origin.Y + element.ActualHeight;
}
private static T? FindDescendant<T>(DependencyObject parent) where T : class
{
var count = VisualTreeHelper.GetChildrenCount(parent);
for (var i = 0; i < count; i++)
{
var child = VisualTreeHelper.GetChild(parent, i);
if (child is T match)
{
return match;
}
if (FindDescendant<T>(child) is { } nested)
{
return nested;
}
}
return null;
}
private const uint WM_INPUT = 0x00FF;
private const uint RID_INPUT = 0x10000003;
private const uint RIM_TYPEMOUSE = 0;
private const ushort RI_MOUSE_WHEEL = 0x0400;
private const int VK_CONTROL = 0x11;
private const uint GA_ROOT = 2;
private delegate IntPtr SubclassProc(
IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam, UIntPtr idSubclass, IntPtr refData);
[StructLayout(LayoutKind.Sequential)]
private struct POINT
{
public int X;
public int Y;
}
[StructLayout(LayoutKind.Sequential)]
private struct RAWINPUTDEVICE
{
public ushort UsagePage;
public ushort Usage;
public uint Flags;
public IntPtr Target;
}
[StructLayout(LayoutKind.Sequential)]
private struct RAWINPUTHEADER
{
public uint Type;
public uint Size;
public IntPtr Device;
public IntPtr WParam;
}
[StructLayout(LayoutKind.Explicit)]
private struct RAWMOUSE
{
[FieldOffset(0)] public ushort Flags;
[FieldOffset(4)] public ushort ButtonFlags;
[FieldOffset(6)] public ushort ButtonData;
[FieldOffset(8)] public uint RawButtons;
[FieldOffset(12)] public int LastX;
[FieldOffset(16)] public int LastY;
[FieldOffset(20)] public uint ExtraInformation;
}
[StructLayout(LayoutKind.Sequential)]
private struct RAWINPUT
{
public RAWINPUTHEADER Header;
public RAWMOUSE Mouse;
}
[DllImport("comctl32.dll")]
private static extern bool SetWindowSubclass(IntPtr hWnd, SubclassProc pfnSubclass, UIntPtr uIdSubclass, IntPtr dwRefData);
[DllImport("comctl32.dll")]
private static extern bool RemoveWindowSubclass(IntPtr hWnd, SubclassProc pfnSubclass, UIntPtr uIdSubclass);
[DllImport("comctl32.dll")]
private static extern IntPtr DefSubclassProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll", SetLastError = true)]
private static extern bool RegisterRawInputDevices(RAWINPUTDEVICE[] devices, uint count, uint size);
[DllImport("user32.dll")]
private static extern uint GetRawInputData(IntPtr hRawInput, uint uiCommand, out RAWINPUT pData, ref uint pcbSize, uint cbSizeHeader);
[DllImport("user32.dll")]
private static extern bool GetCursorPos(out POINT point);
[DllImport("user32.dll")]
private static extern IntPtr WindowFromPoint(POINT point);
[DllImport("user32.dll")]
private static extern IntPtr GetAncestor(IntPtr hwnd, uint gaFlags);
[DllImport("user32.dll")]
private static extern bool ScreenToClient(IntPtr hWnd, ref POINT point);
[DllImport("user32.dll")]
private static extern short GetKeyState(int virtualKey);
private void ApplyInitialTheme()
{
var savedTheme = AuthoringPreferences.LoadTheme();
var osTheme = savedTheme is null ? DetectOsTheme() : null;
var initialTheme = savedTheme ?? osTheme ?? ElementTheme.Dark;
_usingSystemTheme = savedTheme is null && osTheme is not null;
_rootGrid.RequestedTheme = _usingSystemTheme ? ElementTheme.Default : initialTheme;
SetThemeToggle(initialTheme == ElementTheme.Dark);
_rootGrid.Loaded += (_, _) =>
{
if (_usingSystemTheme)
{
SetThemeToggle(EffectiveTheme() == ElementTheme.Dark);
}
ApplyThemeBrushes();
};
_rootGrid.ActualThemeChanged += (_, _) =>
{
if (_usingSystemTheme)
{
SetThemeToggle(EffectiveTheme() == ElementTheme.Dark);
}
ApplyThemeBrushes();
};
ApplyThemeBrushes();
}
private void ToggleTheme()
{
if (_syncingThemeToggle)
{
return;
}
var theme = _themeToggle.IsOn ? ElementTheme.Dark : ElementTheme.Light;
_usingSystemTheme = false;
_rootGrid.RequestedTheme = theme;
AuthoringPreferences.SaveTheme(theme);
ApplyThemeBrushes();
}
private void SetThemeToggle(bool isDark)
{
_syncingThemeToggle = true;
try
{
_themeToggle.IsOn = isDark;
}
finally
{
_syncingThemeToggle = false;
}
}
private void RefreshStatusBrush()
{
if (_statusText is null)
{
return;
}
var brushes = CreateThemeBrushes();
_statusText.Foreground = _viewModel.HasValidationErrors
? brushes.ErrorText
: brushes.SuccessText;
}
private void RefreshPackageControls()
{
if (_generateInstallerButton is not null)
{
_generateInstallerButton.IsEnabled = _viewModel.HasCovenantSetupTool && !_isPackaging;
_generateInstallerButton.Content = _isPackaging ? "Building..." : "Save and Build";
}
}
private void ApplyThemeBrushes()
{
if (_rootGrid is null)
{
return;
}
var brushes = CreateThemeBrushes();
_rootGrid.Background = brushes.PageBackground;
foreach (var border in _sectionBorders)
{
border.Background = brushes.SurfaceBackground;
border.BorderBrush = brushes.Border;
}
foreach (var border in _rowBorders)
{
border.Background = brushes.RowBackground;
border.BorderBrush = brushes.Border;
}
foreach (var textBlock in _secondaryTextBlocks)
{
textBlock.Foreground = brushes.SecondaryText;
}
if (_previewBox is not null)
{
_previewBox.Background = brushes.PreviewBackground;
_previewBox.Foreground = brushes.PreviewText;
_previewBox.BorderBrush = brushes.Border;
}
if (_paneSplitter is not null)
{
_paneSplitter.Background = brushes.Border;
}
RefreshStatusBrush();
}
private ElementTheme EffectiveTheme()
{
if (_rootGrid.RequestedTheme is ElementTheme.Dark or ElementTheme.Light)
{
return _rootGrid.RequestedTheme;
}
if (_rootGrid.ActualTheme is ElementTheme.Dark or ElementTheme.Light)
{
return _rootGrid.ActualTheme;
}
return DetectOsTheme() ?? ElementTheme.Dark;
}
private static ElementTheme? DetectOsTheme()
{
try
{
var background = new UISettings().GetColorValue(UIColorType.Background);
var luminance = (0.2126 * background.R) + (0.7152 * background.G) + (0.0722 * background.B);
return luminance < 128 ? ElementTheme.Dark : ElementTheme.Light;
}
catch
{
return null;
}
}
private ThemeBrushes CreateThemeBrushes() =>
EffectiveTheme() == ElementTheme.Dark
? new ThemeBrushes(
Brush(27, 26, 25),
Brush(37, 36, 35),
Brush(46, 45, 43),
Brush(90, 88, 86),
Brush(200, 198, 196),
Brush(17, 17, 17),
Brush(243, 242, 241),
Brush(108, 203, 127),
Brush(255, 138, 138))
: new ThemeBrushes(
Brush(246, 246, 244),
Brush(255, 255, 255),
Brush(250, 250, 248),
Brush(208, 208, 208),
Brush(98, 98, 98),
Brush(255, 255, 255),
Brush(26, 26, 26),
Brush(16, 124, 16),
Brush(196, 43, 28));
private static SolidColorBrush Brush(byte red, byte green, byte blue) =>
new(Color.FromArgb(255, red, green, blue));
private static TextBox BoundTextBox(string propertyName, string placeholder)
{
var box = new TextBox { PlaceholderText = placeholder };
box.SetBinding(
TextBox.TextProperty,
new Binding
{
Path = new PropertyPath(propertyName),
Mode = BindingMode.TwoWay,
UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
});
return box;
}
private FrameworkElement Section(string title, params UIElement[] children)
{
var stack = new StackPanel { Spacing = 6 };
stack.Children.Add(new TextBlock
{
Text = title,
FontSize = 16,
FontWeight = FontWeights.SemiBold
});
foreach (var child in children)
{
stack.Children.Add(child);
}
var border = new Border
{
BorderThickness = new Thickness(1),
CornerRadius = new CornerRadius(6),
Padding = new Thickness(8),
Child = stack
};
_sectionBorders.Add(border);
var brushes = CreateThemeBrushes();
border.Background = brushes.SurfaceBackground;
border.BorderBrush = brushes.Border;
return border;
}
private static FrameworkElement Labeled(string label, FrameworkElement control)
{
var stack = new StackPanel
{
Spacing = 2,
HorizontalAlignment = HorizontalAlignment.Stretch
};
stack.Children.Add(new TextBlock
{
Text = label,
FontWeight = FontWeights.SemiBold,
FontSize = 12
});
stack.Children.Add(control);
return stack;
}
private static Grid TwoColumn(FrameworkElement left, FrameworkElement right)
{
var grid = new Grid { ColumnSpacing = 6 };
grid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
grid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
Grid.SetColumn(left, 0);
Grid.SetColumn(right, 1);
grid.Children.Add(left);
grid.Children.Add(right);
return grid;
}
private static Grid InputRow(TextBox textBox, Button button)
{
var grid = new Grid { ColumnSpacing = 6 };
grid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(9, GridUnitType.Star) });
grid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(7, GridUnitType.Star) });
grid.HorizontalAlignment = HorizontalAlignment.Stretch;
textBox.HorizontalAlignment = HorizontalAlignment.Stretch;
button.HorizontalAlignment = HorizontalAlignment.Right;
Grid.SetColumn(textBox, 0);
Grid.SetColumn(button, 1);
grid.Children.Add(textBox);
grid.Children.Add(button);
return grid;
}
private static FrameworkElement AlignRight(Button button)
{
button.HorizontalAlignment = HorizontalAlignment.Right;
return button;
}
private FrameworkElement RemovableRows<T>(ObservableCollection<T> collection)
{
var rows = new StackPanel { Spacing = 4 };
void RenderRows()
{
foreach (var border in rows.Children.OfType<Border>())
{
_rowBorders.Remove(border);
}
rows.Children.Clear();
foreach (var item in collection.ToArray())
{
var value = item;
rows.Children.Add(RemovableRow(Convert.ToString(value) ?? string.Empty, () => collection.Remove(value)));
}
rows.Visibility = collection.Count == 0 ? Visibility.Collapsed : Visibility.Visible;
}
collection.CollectionChanged += (_, _) => RenderRows();
RenderRows();
return rows;
}
private FrameworkElement RemovableRow(string text, Action remove)
{
var grid = new Grid { ColumnSpacing = 8 };
grid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
grid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
var label = new TextBlock
{
Text = text,
TextWrapping = TextWrapping.Wrap,
VerticalAlignment = VerticalAlignment.Center
};
Grid.SetColumn(label, 0);
grid.Children.Add(label);
var removeButton = new Button
{
Content = "x",
MinWidth = 28,
Width = 28,
Height = 28,
Padding = new Thickness(0),
VerticalAlignment = VerticalAlignment.Center
};
removeButton.Click += (_, _) => remove();
Grid.SetColumn(removeButton, 1);
grid.Children.Add(removeButton);
var border = new Border
{
BorderThickness = new Thickness(1),
CornerRadius = new CornerRadius(4),
Padding = new Thickness(6),
Child = grid
};
_rowBorders.Add(border);
var brushes = CreateThemeBrushes();
border.Background = brushes.RowBackground;
border.BorderBrush = brushes.Border;
return border;
}
// Thin draggable divider between the editor and preview panes. Dragging
// adjusts the editor column's pixel width; the preview column is star-sized
// and absorbs the remainder. Both panes are clamped to sensible minimums.
private sealed class ColumnSplitter : Grid
{
private readonly ColumnDefinition _primary;
private readonly ColumnDefinition _secondary;
private readonly double _minPrimary;
private readonly double _minSecondary;
private bool _dragging;
private double _startX;
private double _startWidth;
private double _available;
public ColumnSplitter(
ColumnDefinition primary,
ColumnDefinition secondary,
double minPrimary,
double minSecondary)
{
_primary = primary;
_secondary = secondary;
_minPrimary = minPrimary;
_minSecondary = minSecondary;
Width = 6;
HorizontalAlignment = HorizontalAlignment.Stretch;
VerticalAlignment = VerticalAlignment.Stretch;
ProtectedCursor = InputSystemCursor.Create(InputSystemCursorShape.SizeWestEast);
// Pointer capture (rather than ManipulationMode) is used deliberately:
// enabling the manipulation pipeline on this element intercepts the
// mouse-wheel routing the adjacent editor pane depends on.
PointerPressed += OnPointerPressed;
PointerMoved += OnPointerMoved;
PointerReleased += OnPointerReleased;
PointerCaptureLost += OnPointerCaptureLost;
}
private void OnPointerPressed(object sender, PointerRoutedEventArgs e)
{
_dragging = CapturePointer(e.Pointer);
_startX = e.GetCurrentPoint(null).Position.X;
_startWidth = _primary.ActualWidth;
_available = _primary.ActualWidth + _secondary.ActualWidth;
e.Handled = true;
}
private void OnPointerMoved(object sender, PointerRoutedEventArgs e)
{
if (!_dragging)
{
return;
}
var delta = e.GetCurrentPoint(null).Position.X - _startX;
var max = Math.Max(_minPrimary, _available - _minSecondary);
var desired = Math.Clamp(_startWidth + delta, _minPrimary, max);
_primary.Width = new GridLength(desired);
e.Handled = true;
}
private void OnPointerReleased(object sender, PointerRoutedEventArgs e)
{
if (_dragging)
{
ReleasePointerCapture(e.Pointer);
_dragging = false;
e.Handled = true;
}
}
private void OnPointerCaptureLost(object sender, PointerRoutedEventArgs e) => _dragging = false;
}
private static IReadOnlyList<string> SplitLines(string value) =>
value.Split(
[Environment.NewLine, "\n"],
StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
private sealed record ThemeBrushes(
SolidColorBrush PageBackground,
SolidColorBrush SurfaceBackground,
SolidColorBrush RowBackground,
SolidColorBrush Border,
SolidColorBrush SecondaryText,
SolidColorBrush PreviewBackground,
SolidColorBrush PreviewText,
SolidColorBrush SuccessText,
SolidColorBrush ErrorText);
}