/
HamburgerMenu.cs
76 lines (64 loc) · 2.46 KB
/
HamburgerMenu.cs
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namespace MahApps.Metro.Controls
{
using System.Windows;
using System.Windows.Controls;
/// <summary>
/// The HamburgerMenu is based on a SplitView control. By default it contains a HamburgerButton and a ListView to display menu items.
/// </summary>
[TemplatePart(Name = "HamburgerButton", Type = typeof(Button))]
[TemplatePart(Name = "ButtonsListView", Type = typeof(ListBox))]
[TemplatePart(Name = "OptionsListView", Type = typeof(ListBox))]
public partial class HamburgerMenu : ContentControl
{
private Button _hamburgerButton;
private ListBox _buttonsListView;
private ListBox _optionsListView;
/// <summary>
/// Initializes a new instance of the <see cref="HamburgerMenu"/> class.
/// </summary>
public HamburgerMenu()
{
DefaultStyleKey = typeof(HamburgerMenu);
}
/// <summary>
/// Override default OnApplyTemplate to capture children controls
/// </summary>
public override void OnApplyTemplate()
{
if (_hamburgerButton != null)
{
_hamburgerButton.Click -= HamburgerButton_Click;
}
if (_buttonsListView != null)
{
_buttonsListView.MouseUp -= ButtonsListView_ItemClick;
}
if (_optionsListView != null)
{
_optionsListView.MouseUp -= OptionsListView_ItemClick;
}
_hamburgerButton = (Button)GetTemplateChild("HamburgerButton");
_buttonsListView = (ListBox)GetTemplateChild("ButtonsListView");
_optionsListView = (ListBox)GetTemplateChild("OptionsListView");
if (_hamburgerButton != null)
{
_hamburgerButton.Click += HamburgerButton_Click;
}
if (_buttonsListView != null)
{
_buttonsListView.MouseUp += ButtonsListView_ItemClick;
}
if (_optionsListView != null)
{
_optionsListView.MouseUp += OptionsListView_ItemClick;
}
this.Loaded -= HamburgerMenu_Loaded;
this.Loaded += HamburgerMenu_Loaded;
base.OnApplyTemplate();
}
private void HamburgerMenu_Loaded(object sender, RoutedEventArgs e)
{
this.SetCurrentValue(ContentProperty, _buttonsListView?.SelectedItem ?? _optionsListView?.SelectedItem);
}
}
}