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using System;
using System.Collections;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using Xamarin.PropertyEditing.ViewModels;
namespace Xamarin.PropertyEditing.Windows
{
[TemplatePart (Name = "search", Type = typeof(TextBox))]
[TemplatePart (Name = "propertyItems", Type = typeof(ItemsControl))]
[TemplatePart (Name = "paneSelector", Type = typeof(ChoiceControl))]
public class PropertyEditorPanel
: Control, IPropertiesHost
{
public PropertyEditorPanel ()
{
DefaultStyleKey = typeof(PropertyEditorPanel);
Resources.MergedDictionaries.Add (new ResourceDictionary { Source = new Uri ("pack://application:,,,/Xamarin.PropertyEditing.Windows;component/Themes/Resources.xaml") });
var selectedItems = new ObservableCollection<object> ();
selectedItems.CollectionChanged += OnSelectedItemsChanged;
SelectedItems = selectedItems;
}
public static readonly DependencyProperty ResourceProviderProperty = DependencyProperty.Register (
nameof(ResourceProvider), typeof(IResourceProvider), typeof(PropertyEditorPanel), new PropertyMetadata (default(IResourceProvider), (o, args) => ((PropertyEditorPanel)o).OnTargetPlatformChanged()));
public IResourceProvider ResourceProvider
{
get { return (IResourceProvider) GetValue (ResourceProviderProperty); }
set { SetValue (ResourceProviderProperty, value); }
}
public static readonly DependencyProperty TargetPlatformProperty = DependencyProperty.Register (
"TargetPlatform", typeof(TargetPlatform), typeof(PropertyEditorPanel), new PropertyMetadata (null, (o,e) => ((PropertyEditorPanel)o).OnTargetPlatformChanged ()));
public TargetPlatform TargetPlatform
{
get { return (TargetPlatform) GetValue (TargetPlatformProperty); }
set { SetValue (TargetPlatformProperty, value); }
}
private static readonly DependencyPropertyKey SelectedItemsPropertyKey = DependencyProperty.RegisterReadOnly (
nameof(SelectedItems), typeof(IList), typeof(PropertyEditorPanel), new PropertyMetadata (default(IList)));
public static readonly DependencyProperty SelectedItemsProperty = SelectedItemsPropertyKey.DependencyProperty;
public IList SelectedItems
{
get { return (IList) GetValue (SelectedItemsProperty); }
private set { SetValue (SelectedItemsPropertyKey, value); }
}
public static readonly DependencyProperty IsArrangeEnabledProperty = DependencyProperty.Register (
nameof(IsArrangeEnabled), typeof(bool), typeof(PropertyEditorPanel), new PropertyMetadata (true));
public bool IsArrangeEnabled
{
get { return (bool) GetValue (IsArrangeEnabledProperty); }
set { SetValue (IsArrangeEnabledProperty, value); }
}
public static readonly DependencyProperty ArrangeModeProperty = DependencyProperty.Register (
nameof(ArrangeMode), typeof(PropertyArrangeMode), typeof(PropertyEditorPanel), new PropertyMetadata (PropertyArrangeMode.Name, (o, args) => ((PropertyEditorPanel)o).OnArrangeModeChanged ((PropertyArrangeMode)args.NewValue)));
public PropertyArrangeMode ArrangeMode
{
get { return (PropertyArrangeMode) GetValue (ArrangeModeProperty); }
set { SetValue (ArrangeModeProperty, value); }
}
public static PropertyEditing.Themes.WinThemeManager ThemeManager = new PropertyEditing.Themes.WinThemeManager();
public override void OnApplyTemplate ()
{
base.OnApplyTemplate ();
this.root = (FrameworkElement) GetTemplateChild ("root");
this.items = (ItemsControl) GetTemplateChild ("propertyItems");
this.propertiesPane = (FrameworkElement) GetTemplateChild ("propertiesPane");
this.eventsPane = (FrameworkElement) GetTemplateChild ("eventsPane");
this.paneSelector = (ChoiceControl) GetTemplateChild ("paneSelector");
this.paneSelector.SelectedValue = EditingPane.Properties;
this.paneSelector.SelectedItemChanged += OnPaneChanged;
OnTargetPlatformChanged();
if (this.vm.SelectedObjects.Count > 0)
OnArrangeModeChanged (ArrangeMode);
}
private FrameworkElement root;
private PanelViewModel vm;
private ItemsControl items;
private ChoiceControl paneSelector;
private FrameworkElement propertiesPane, eventsPane;
private void OnPaneChanged (object sender, EventArgs e)
{
object selected = this.paneSelector.SelectedValue;
EditingPane pane = EditingPane.Properties;
if (selected != null)
pane = (EditingPane)selected;
if (pane == EditingPane.Properties) {
this.eventsPane.Visibility = Visibility.Collapsed;
this.propertiesPane.Visibility = Visibility.Visible;
} else if (pane == EditingPane.Events) {
this.propertiesPane.Visibility = Visibility.Collapsed;
this.eventsPane.Visibility = Visibility.Visible;
}
}
private void OnSelectedItemsChanged (object sender, NotifyCollectionChangedEventArgs e)
{
if (this.vm == null)
return;
switch (e.Action) {
case NotifyCollectionChangedAction.Add:
for (int i = 0; i < e.NewItems.Count; i++)
this.vm.SelectedObjects.Add (e.NewItems[i]);
break;
case NotifyCollectionChangedAction.Remove:
for (int i = 0; i < e.OldItems.Count; i++)
this.vm.SelectedObjects.Remove (e.OldItems[i]);
break;
case NotifyCollectionChangedAction.Replace: // TODO properly
case NotifyCollectionChangedAction.Move:
case NotifyCollectionChangedAction.Reset:
this.vm.SelectedObjects.Clear();
this.vm.SelectedObjects.AddItems (SelectedItems);
break;
}
if (ArrangeMode == PropertyArrangeMode.Name)
OnArrangeModeChanged (ArrangeMode);
}
private void OnTargetPlatformChanged ()
{
if (this.root == null)
return;
if (this.vm != null)
this.vm.PropertyChanged -= OnVmPropertyChanged;
PanelViewModel newVm = null;
if (TargetPlatform != null) {
newVm = new PanelViewModel (TargetPlatform) {
ResourceProvider = ResourceProvider
};
}
this.root.DataContext = this.vm = newVm;
if (this.vm != null)
this.vm.PropertyChanged += OnVmPropertyChanged;
}
private void OnVmPropertyChanged (object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == nameof(PanelViewModel.ArrangeMode))
SetCurrentValue (ArrangeModeProperty, this.vm.ArrangeMode);
}
private void OnArrangeModeChanged (PropertyArrangeMode newMode)
{
if (this.items == null)
return;
Binding itemsSource;
if (newMode == PropertyArrangeMode.Name)
itemsSource = new Binding ("ArrangedEditors[0]");
else
itemsSource = new Binding ("ArrangedEditors");
this.items.SetBinding (ItemsControl.ItemsSourceProperty, itemsSource);
}
}
internal enum EditingPane
{
Properties,
Events
}
}
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