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76 lines
2.9 KiB
76 lines
2.9 KiB
/*************************************************************************************
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Toolkit for WPF
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Copyright (C) 2007-2020 Xceed Software Inc.
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This program is provided to you under the terms of the XCEED SOFTWARE, INC.
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COMMUNITY LICENSE AGREEMENT (for non-commercial use) as published at
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https://github.com/xceedsoftware/wpftoolkit/blob/master/license.md
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For more features, controls, and fast professional support,
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pick up the Plus Edition at https://xceed.com/xceed-toolkit-plus-for-wpf/
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Stay informed: follow @datagrid on Twitter or Like http://facebook.com/datagrids
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***********************************************************************************/
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using System.Windows;
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using System.Windows.Media;
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using Xceed.Wpf.Toolkit.PropertyGrid;
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namespace Xceed.Wpf.Toolkit.Core.Utilities
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{
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public class ContextMenuUtilities
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{
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public static readonly DependencyProperty OpenOnMouseLeftButtonClickProperty = DependencyProperty.RegisterAttached( "OpenOnMouseLeftButtonClick", typeof( bool ), typeof( ContextMenuUtilities ), new FrameworkPropertyMetadata( false, OpenOnMouseLeftButtonClickChanged ) );
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public static void SetOpenOnMouseLeftButtonClick( FrameworkElement element, bool value )
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{
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element.SetValue( OpenOnMouseLeftButtonClickProperty, value );
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}
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public static bool GetOpenOnMouseLeftButtonClick( FrameworkElement element )
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{
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return ( bool )element.GetValue( OpenOnMouseLeftButtonClickProperty );
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}
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public static void OpenOnMouseLeftButtonClickChanged( DependencyObject sender, DependencyPropertyChangedEventArgs e )
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{
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var control = sender as FrameworkElement;
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if( control != null )
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{
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if( ( bool )e.NewValue )
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{
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control.PreviewMouseLeftButtonDown += ContextMenuUtilities.Control_PreviewMouseLeftButtonDown;
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}
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else
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{
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control.PreviewMouseLeftButtonDown -= ContextMenuUtilities.Control_PreviewMouseLeftButtonDown;
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}
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}
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}
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private static void Control_PreviewMouseLeftButtonDown( object sender, System.Windows.Input.MouseButtonEventArgs e )
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{
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var control = sender as FrameworkElement;
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if( (control != null) && (control.ContextMenu != null) )
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{
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// Get PropertyItemBase parent
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var parent = VisualTreeHelper.GetParent( control );
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while( parent != null )
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{
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var propertyItemBase = parent as PropertyItemBase;
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if( propertyItemBase != null )
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{
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// Set the ContextMenu.DataContext to the PropertyItem associated to the clicked image.
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control.ContextMenu.DataContext = propertyItemBase;
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break;
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}
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parent = VisualTreeHelper.GetParent( parent );
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}
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control.ContextMenu.PlacementTarget = control;
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control.ContextMenu.IsOpen = true;
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}
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}
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}
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}
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