整理控件库
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599
WPFluent/Controls/TitleBar/TitleBar.cs
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599
WPFluent/Controls/TitleBar/TitleBar.cs
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using System.Windows.Input;
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using WPFluent.Extensions;
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using WPFluent.Input;
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using WPFluent.Interop;
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namespace WPFluent.Controls;
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/// <summary>
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/// HCWhite navigation buttons for the window.
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/// </summary>
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[TemplatePart(Name = ElementMainGrid, Type = typeof(System.Windows.Controls.Grid))]
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[TemplatePart(Name = ElementIcon, Type = typeof(System.Windows.Controls.Image))]
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[TemplatePart(Name = ElementHelpButton, Type = typeof(TitleBarButton))]
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[TemplatePart(Name = ElementMinimizeButton, Type = typeof(TitleBarButton))]
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[TemplatePart(Name = ElementMaximizeButton, Type = typeof(TitleBarButton))]
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[TemplatePart(Name = ElementRestoreButton, Type = typeof(TitleBarButton))]
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[TemplatePart(Name = ElementCloseButton, Type = typeof(TitleBarButton))]
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public class TitleBar : System.Windows.Controls.Control
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{
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private const string ElementCloseButton = "PART_CloseButton";
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private const string ElementHelpButton = "PART_HelpButton";
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private const string ElementIcon = "PART_Icon";
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private const string ElementMainGrid = "PART_MainGrid";
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private const string ElementMaximizeButton = "PART_MaximizeButton";
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private const string ElementMinimizeButton = "PART_MinimizeButton";
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private const string ElementRestoreButton = "PART_RestoreButton";
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private static DpiScale? dpiScale;
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/// <summary>
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/// Identifies the <see cref="ButtonsBackground"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty ButtonsBackgroundProperty = DependencyProperty.Register(
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nameof(ButtonsBackground),
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typeof(Brush),
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typeof(TitleBar),
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new FrameworkPropertyMetadata(SystemColors.ControlBrush, FrameworkPropertyMetadataOptions.Inherits));
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/// <summary>
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/// Identifies the <see cref="ButtonsForeground"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty ButtonsForegroundProperty = DependencyProperty.Register(
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nameof(ButtonsForeground),
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typeof(Brush),
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typeof(TitleBar),
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new FrameworkPropertyMetadata(SystemColors.ControlTextBrush, FrameworkPropertyMetadataOptions.Inherits));
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/// <summary>
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/// Identifies the <see cref="CanMaximize"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty CanMaximizeProperty = DependencyProperty.Register(
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nameof(CanMaximize),
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typeof(bool),
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typeof(TitleBar),
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new PropertyMetadata(true));
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/// <summary>
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/// Identifies the <see cref="CloseClicked"/> routed event.
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/// </summary>
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public static readonly RoutedEvent CloseClickedEvent = EventManager.RegisterRoutedEvent(
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nameof(CloseClicked),
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RoutingStrategy.Bubble,
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typeof(TypedEventHandler<TitleBar, RoutedEventArgs>),
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typeof(TitleBar));
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/// <summary>
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/// Identifies the <see cref="CloseWindowByDoubleClickOnIcon"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty CloseWindowByDoubleClickOnIconProperty =
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DependencyProperty.Register(
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nameof(CloseWindowByDoubleClickOnIcon),
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typeof(bool),
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typeof(TitleBar),
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new PropertyMetadata(false));
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/// <summary>
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/// Identifies the <see cref="HelpClicked"/> routed event.
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/// </summary>
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public static readonly RoutedEvent HelpClickedEvent = EventManager.RegisterRoutedEvent(
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nameof(HelpClicked),
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RoutingStrategy.Bubble,
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typeof(TypedEventHandler<TitleBar, RoutedEventArgs>),
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typeof(TitleBar));
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/// <summary>
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/// Identifies the <see cref="Icon"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty IconProperty = DependencyProperty.Register(
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nameof(Icon),
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typeof(IconElement),
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typeof(TitleBar),
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new PropertyMetadata(null));
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/// <summary>
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/// Identifies the <see cref="IsMaximized"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty IsMaximizedProperty = DependencyProperty.Register(
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nameof(IsMaximized),
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typeof(bool),
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typeof(TitleBar),
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new PropertyMetadata(false));
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/// <summary>
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/// Identifies the <see cref="MaximizeClicked"/> routed event.
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/// </summary>
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public static readonly RoutedEvent MaximizeClickedEvent = EventManager.RegisterRoutedEvent(
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nameof(MaximizeClicked),
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RoutingStrategy.Bubble,
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typeof(TypedEventHandler<TitleBar, RoutedEventArgs>),
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typeof(TitleBar));
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/// <summary>
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/// Identifies the <see cref="MinimizeClicked"/> routed event.
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/// </summary>
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public static readonly RoutedEvent MinimizeClickedEvent = EventManager.RegisterRoutedEvent(
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nameof(MinimizeClicked),
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RoutingStrategy.Bubble,
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typeof(TypedEventHandler<TitleBar, RoutedEventArgs>),
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typeof(TitleBar));
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/// <summary>
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/// Identifies the <see cref="ShowClose"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty ShowCloseProperty = DependencyProperty.Register(
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nameof(ShowClose),
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typeof(bool),
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typeof(TitleBar),
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new PropertyMetadata(true));
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/// <summary>
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/// Identifies the <see cref="ShowHelp"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty ShowHelpProperty = DependencyProperty.Register(
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nameof(ShowHelp),
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typeof(bool),
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typeof(TitleBar),
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new PropertyMetadata(false));
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/// <summary>
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/// Identifies the <see cref="ShowMaximize"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty ShowMaximizeProperty = DependencyProperty.Register(
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nameof(ShowMaximize),
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typeof(bool),
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typeof(TitleBar),
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new PropertyMetadata(true));
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/// <summary>
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/// Identifies the <see cref="ShowMinimize"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty ShowMinimizeProperty = DependencyProperty.Register(
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nameof(ShowMinimize),
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typeof(bool),
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typeof(TitleBar),
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new PropertyMetadata(true));
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/// <summary>
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/// Identifies the <see cref="TemplateButtonCommand"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty TemplateButtonCommandProperty = DependencyProperty.Register(
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nameof(TemplateButtonCommand),
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typeof(IRelayCommand),
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typeof(TitleBar),
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new PropertyMetadata(null));
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/// <summary>
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/// Identifies the <see cref="Title"/> dependency property.
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/// </summary>
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public static readonly DependencyProperty TitleProperty = DependencyProperty.Register(
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nameof(Title),
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typeof(string),
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typeof(TitleBar),
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new PropertyMetadata(null));
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/// <summary>
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/// Property for <see cref="TrailingContent"/>.
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/// </summary>
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public static readonly DependencyProperty TrailingContentProperty = DependencyProperty.Register(
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nameof(TrailingContent),
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typeof(object),
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typeof(TitleBar),
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new PropertyMetadata(null));
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private readonly TitleBarButton[] buttons = new TitleBarButton[4];
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private System.Windows.Window currentWindow;
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private System.Windows.Controls.ContentPresenter icon;
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private DependencyObject _parentWindow;
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/// <summary>
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/// Initializes a new instance of the <see cref="TitleBar"/> class and sets the default <see
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/// cref="FrameworkElement.Loaded"/> event.
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/// </summary>
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public TitleBar()
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{
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SetValue(TemplateButtonCommandProperty, new RelayCommand<TitleBarButtonType>(OnTemplateButtonClick));
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dpiScale ??= VisualTreeHelper.GetDpi(this);
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Loaded += OnLoaded;
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Unloaded += OnUnloaded;
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}
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/// <summary>
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/// Event triggered after clicking close button.
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/// </summary>
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public event TypedEventHandler<TitleBar, RoutedEventArgs> CloseClicked
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{
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add => AddHandler(CloseClickedEvent, value);
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remove => RemoveHandler(CloseClickedEvent, value);
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}
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/// <summary>
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/// Event triggered after clicking help button
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/// </summary>
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public event TypedEventHandler<TitleBar, RoutedEventArgs> HelpClicked
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{
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add => AddHandler(HelpClickedEvent, value);
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remove => RemoveHandler(HelpClickedEvent, value);
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}
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/// <summary>
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/// Event triggered after clicking maximize or restore button.
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/// </summary>
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public event TypedEventHandler<TitleBar, RoutedEventArgs> MaximizeClicked
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{
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add => AddHandler(MaximizeClickedEvent, value);
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remove => RemoveHandler(MaximizeClickedEvent, value);
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}
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/// <summary>
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/// Event triggered after clicking minimize button.
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/// </summary>
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public event TypedEventHandler<TitleBar, RoutedEventArgs> MinimizeClicked
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{
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add => AddHandler(MinimizeClickedEvent, value);
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remove => RemoveHandler(MinimizeClickedEvent, value);
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}
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private void CloseWindow()
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{
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currentWindow.Close();
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}
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private T GetTemplateChild<T>(string name) where T : DependencyObject
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{
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var element = GetTemplateChild(name);
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if (element is not T tElement)
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{
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throw new InvalidOperationException($"Template part '{name}' is not found or is not of type {typeof(T)}");
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}
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return tElement;
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}
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private IntPtr HwndSourceHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
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{
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var message = (User32.WM)msg;
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if (message
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is not (
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User32.WM.NCHITTEST
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or User32.WM.NCMOUSELEAVE
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or User32.WM.NCLBUTTONDOWN
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or User32.WM.NCLBUTTONUP
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))
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{
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return IntPtr.Zero;
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}
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foreach (TitleBarButton button in buttons)
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{
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if (!button.ReactToHwndHook(message, lParam, out IntPtr returnIntPtr))
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{
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continue;
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}
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// 修复了有时未正确清除按钮悬停背景，导致多个按钮看起来好像悬停的问题。
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foreach (TitleBarButton anotherButton in buttons)
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{
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if (anotherButton == button)
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{
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continue;
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}
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if (anotherButton.IsHovered && button.IsHovered)
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{
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anotherButton.RemoveHover();
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}
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}
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handled = true;
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return returnIntPtr;
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}
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var isMouseOverHeaderContent = false;
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//if (message == User32.WM.NCHITTEST && (TrailingContent is UIElement))
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//{
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// var headerRightUiElement = TrailingContent as UIElement;
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// if (headerLeftUIElement is not null)
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// {
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// isMouseOverHeaderContent =
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// (headerRightUiElement?.IsMouseOverElement(lParam) ?? false);
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// }
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// else
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// {
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// isMouseOverHeaderContent = headerRightUiElement?.IsMouseOverElement(lParam) ?? false;
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// }
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//}
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switch (message)
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{
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case User32.WM.NCHITTEST when CloseWindowByDoubleClickOnIcon && icon.IsMouseOverElement(lParam):
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// Ideally, clicking on the icon should open the system menu, but when the system menu is opened manually, double-clicking on the icon does not close the window
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handled = true;
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return (IntPtr)User32.WM_NCHITTEST.HTSYSMENU;
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case User32.WM.NCHITTEST when this.IsMouseOverElement(lParam) && !isMouseOverHeaderContent:
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handled = true;
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return (IntPtr)User32.WM_NCHITTEST.HTCAPTION;
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default:
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return IntPtr.Zero;
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}
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}
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private void MaximizeWindow()
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{
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if (!CanMaximize)
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{
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return;
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}
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if (MaximizeActionOverride is not null)
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{
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MaximizeActionOverride(this, currentWindow);
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return;
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}
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if (currentWindow.WindowState == WindowState.Normal)
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{
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SetCurrentValue(IsMaximizedProperty, true);
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currentWindow.SetCurrentValue(Window.WindowStateProperty, WindowState.Maximized);
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}
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else
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{
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SetCurrentValue(IsMaximizedProperty, false);
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currentWindow.SetCurrentValue(Window.WindowStateProperty, WindowState.Normal);
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}
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}
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private void MinimizeWindow()
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{
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if (MinimizeActionOverride is not null)
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{
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MinimizeActionOverride(this, currentWindow);
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return;
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}
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currentWindow.SetCurrentValue(Window.WindowStateProperty, WindowState.Minimized);
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}
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private void OnParentWindowStateChanged(object sender, EventArgs e)
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{
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if (IsMaximized != (currentWindow.WindowState == WindowState.Maximized))
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{
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SetCurrentValue(IsMaximizedProperty, currentWindow.WindowState == WindowState.Maximized);
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}
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}
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/// <summary>
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/// 设置窗口状态
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/// </summary>
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/// <param name="buttonType"></param>
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private void OnTemplateButtonClick(TitleBarButtonType buttonType)
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{
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switch (buttonType)
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{
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case TitleBarButtonType.Maximize
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or TitleBarButtonType.Restore:
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RaiseEvent(new RoutedEventArgs(MaximizeClickedEvent, this));
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MaximizeWindow();
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break;
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case TitleBarButtonType.Close:
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RaiseEvent(new RoutedEventArgs(CloseClickedEvent, this));
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CloseWindow();
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break;
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case TitleBarButtonType.Minimize:
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RaiseEvent(new RoutedEventArgs(MinimizeClickedEvent, this));
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MinimizeWindow();
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break;
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case TitleBarButtonType.Help:
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RaiseEvent(new RoutedEventArgs(HelpClickedEvent, this));
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break;
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}
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}
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private void OnUnloaded(object sender, RoutedEventArgs e)
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{
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Loaded -= OnLoaded;
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Unloaded -= OnUnloaded;
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}
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/// <summary>
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/// Listening window hooks after rendering window content to SizeToContent support
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/// </summary>
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private void OnWindowContentRendered(object sender, EventArgs e)
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{
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if (sender is not Window window)
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{
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return;
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}
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window.ContentRendered -= OnWindowContentRendered;
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var handle = new WindowInteropHelper(window).Handle;
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var windowSource =
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HwndSource.FromHwnd(handle) ?? throw new InvalidOperationException("Window source is null");
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windowSource.AddHook(HwndSourceHook);
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||||
}
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||||
|
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/// <summary>
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/// 在鼠标右键时显示 'SystemMenu'。
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/// </summary>
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private void TitleBar_MouseRightButtonUp(object sender, MouseButtonEventArgs e)
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||||
{
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var point = PointToScreen(e.GetPosition(this));
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|
||||
if (dpiScale is null)
|
||||
{
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throw new InvalidOperationException("dpiScale is not initialized.");
|
||||
}
|
||||
|
||||
SystemCommands.ShowSystemMenu(
|
||||
_parentWindow as Window,
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||||
new Point(point.X / dpiScale.Value.DpiScaleX, point.Y / dpiScale.Value.DpiScaleY));
|
||||
}
|
||||
|
||||
protected virtual void OnLoaded(object sender, RoutedEventArgs e)
|
||||
{
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||||
currentWindow =
|
||||
System.Windows.Window.GetWindow(this) ?? throw new InvalidOperationException("Window is null");
|
||||
currentWindow.StateChanged += OnParentWindowStateChanged;
|
||||
currentWindow.ContentRendered += OnWindowContentRendered;
|
||||
}
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||||
/// <summary>
|
||||
/// 获取单击标题栏按钮时触发的命令。
|
||||
/// </summary>
|
||||
internal IRelayCommand TemplateButtonCommand => (IRelayCommand)GetValue(TemplateButtonCommandProperty);
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||||
|
||||
|
||||
/// <summary>
|
||||
/// 每当应用程序代码或内部进程（如重建布局传递）调用OnApplyTemplate方法。
|
||||
/// </summary>
|
||||
public override void OnApplyTemplate()
|
||||
{
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||||
base.OnApplyTemplate();
|
||||
|
||||
_parentWindow = VisualTreeHelper.GetParent(this);
|
||||
|
||||
while (_parentWindow is not null and not Window)
|
||||
{
|
||||
_parentWindow = VisualTreeHelper.GetParent(_parentWindow);
|
||||
}
|
||||
|
||||
MouseRightButtonUp += TitleBar_MouseRightButtonUp;
|
||||
|
||||
/*_mainGrid = GetTemplateChild<System.Windows.Controls.Grid>(ElementMainGrid);*/
|
||||
icon = GetTemplateChild<System.Windows.Controls.ContentPresenter>(ElementIcon);
|
||||
|
||||
var helpButton = GetTemplateChild<TitleBarButton>(ElementHelpButton);
|
||||
var minimizeButton = GetTemplateChild<TitleBarButton>(ElementMinimizeButton);
|
||||
var maximizeButton = GetTemplateChild<TitleBarButton>(ElementMaximizeButton);
|
||||
var closeButton = GetTemplateChild<TitleBarButton>(ElementCloseButton);
|
||||
|
||||
buttons[0] = maximizeButton;
|
||||
buttons[1] = minimizeButton;
|
||||
buttons[2] = closeButton;
|
||||
buttons[3] = helpButton;
|
||||
}
|
||||
|
||||
///// <inheritdoc/>
|
||||
//public Appearance.ThemeType ApplicationTheme
|
||||
//{
|
||||
// get => (Appearance.ThemeType)GetValue(ApplicationThemeProperty);
|
||||
// set => SetValue(ApplicationThemeProperty, value);
|
||||
//}
|
||||
|
||||
/// <summary>
|
||||
/// 获取或设置导航按钮悬停时的背景。
|
||||
/// </summary>
|
||||
[Bindable(true)]
|
||||
[Category("Appearance")]
|
||||
public Brush ButtonsBackground
|
||||
{
|
||||
get => (Brush)GetValue(ButtonsBackgroundProperty);
|
||||
set => SetValue(ButtonsBackgroundProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the foreground of the navigation buttons.
|
||||
/// </summary>
|
||||
[Bindable(true)]
|
||||
[Category("Appearance")]
|
||||
public Brush ButtonsForeground
|
||||
{
|
||||
get => (Brush)GetValue(ButtonsForegroundProperty);
|
||||
set => SetValue(ButtonsForegroundProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets a value indicating whether the maximize functionality is enabled. If disabled the
|
||||
/// MaximizeActionOverride action won't be called
|
||||
/// </summary>
|
||||
public bool CanMaximize { get => (bool)GetValue(CanMaximizeProperty); set => SetValue(CanMaximizeProperty, value); }
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets a value indicating whether the window can be closed by double clicking on the icon
|
||||
/// </summary>
|
||||
public bool CloseWindowByDoubleClickOnIcon
|
||||
{
|
||||
get => (bool)GetValue(CloseWindowByDoubleClickOnIconProperty);
|
||||
set => SetValue(CloseWindowByDoubleClickOnIconProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the titlebar icon.
|
||||
/// </summary>
|
||||
public IconElement Icon { get => (IconElement)GetValue(IconProperty); set => SetValue(IconProperty, value); }
|
||||
|
||||
/// <summary>
|
||||
/// 获取一个值，该值指示当前窗口是否最大化。
|
||||
/// </summary>
|
||||
public bool IsMaximized
|
||||
{
|
||||
get => (bool)GetValue(IsMaximizedProperty);
|
||||
internal set => SetValue(IsMaximizedProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 获取或设置单击“最大化”按钮时应执行的 <see cref=“Action”/>。
|
||||
/// </summary>
|
||||
public Action<TitleBar, System.Windows.Window> MaximizeActionOverride { get; set; }
|
||||
|
||||
/// <summary>
|
||||
/// 获取或设置在单击 Minimize 按钮时应执行的 <see cref=“Action”/> 内容。
|
||||
/// </summary>
|
||||
public Action<TitleBar, System.Windows.Window> MinimizeActionOverride { get; set; }
|
||||
|
||||
/// <summary>
|
||||
/// 获取或设置一个值，该值指示是否显示关闭按钮。
|
||||
/// </summary>
|
||||
public bool ShowClose { get => (bool)GetValue(ShowCloseProperty); set => SetValue(ShowCloseProperty, value); }
|
||||
|
||||
/// <summary>
|
||||
/// 获取或设置一个值，该值指示是否显示 help 按钮
|
||||
/// </summary>
|
||||
public bool ShowHelp { get => (bool)GetValue(ShowHelpProperty); set => SetValue(ShowHelpProperty, value); }
|
||||
|
||||
/// <summary>
|
||||
/// 获取或设置一个值，该值指示是否显示 maximize （最大化） 按钮。
|
||||
/// </summary>
|
||||
public bool ShowMaximize
|
||||
{
|
||||
get => (bool)GetValue(ShowMaximizeProperty);
|
||||
set => SetValue(ShowMaximizeProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 获取或设置一个值，该值指示是否显示 minimize （最小化） 按钮。
|
||||
/// </summary>
|
||||
public bool ShowMinimize
|
||||
{
|
||||
get => (bool)GetValue(ShowMinimizeProperty);
|
||||
set => SetValue(ShowMinimizeProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 获取或设置显示在左侧的标题。
|
||||
/// </summary>
|
||||
public string Title { get => (string)GetValue(TitleProperty); set => SetValue(TitleProperty, value); }
|
||||
|
||||
/// <summary>
|
||||
/// 获取或设置在右侧显示的内容 <see cref="TitleBar"/>.
|
||||
/// </summary>
|
||||
public object TrailingContent
|
||||
{
|
||||
get => GetValue(TrailingContentProperty);
|
||||
set => SetValue(TrailingContentProperty, value);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user