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refactor: Move ListView sort logic to behavior class
Moved ListView sorting logic from code-behind to a new behavior class `ListViewClickSortBehavior`.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| using System.Windows.Controls.Primitives; | ||
| using FoliCon.Modules.utils; | ||
|
|
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| namespace FoliCon.Modules.UI; | ||
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| public class ListViewClickSortBehavior : Behavior<ListView> | ||
| { | ||
| private GridViewColumnHeader _lastHeaderClicked; | ||
| private ListSortDirection _lastDirection = ListSortDirection.Ascending; | ||
|
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| protected override void OnAttached() | ||
| { | ||
| base.OnAttached(); | ||
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| AssociatedObject.AddHandler(ButtonBase.ClickEvent, new RoutedEventHandler(OnClick)); | ||
| ((INotifyCollectionChanged) AssociatedObject.Items).CollectionChanged += ListView_CollectionChanged; | ||
| } | ||
|
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| protected override void OnDetaching() | ||
| { | ||
| base.OnDetaching(); | ||
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| AssociatedObject.RemoveHandler(ButtonBase.ClickEvent, new RoutedEventHandler(OnClick)); | ||
| ((INotifyCollectionChanged) AssociatedObject.Items).CollectionChanged -= ListView_CollectionChanged; | ||
| } | ||
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| private void ListView_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e) | ||
| { | ||
| if (e.Action == NotifyCollectionChangedAction.Reset) | ||
| { | ||
| UiUtils.SetColumnWidth(AssociatedObject); | ||
| } | ||
| } | ||
|
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| private void OnClick(object sender, RoutedEventArgs e) | ||
| { | ||
| if (e.OriginalSource is not GridViewColumnHeader headerClicked) return; | ||
| if (headerClicked.Role == GridViewColumnHeaderRole.Padding) return; | ||
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| ListSortDirection direction; | ||
| if (headerClicked != _lastHeaderClicked) | ||
| { | ||
| direction = ListSortDirection.Ascending; | ||
| } | ||
| else | ||
| { | ||
| direction = _lastDirection == ListSortDirection.Ascending | ||
| ? ListSortDirection.Descending | ||
| : ListSortDirection.Ascending; | ||
| } | ||
|
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| var header = headerClicked.Column.Header as string; | ||
| Sort(header, direction); | ||
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| headerClicked.Column.HeaderTemplate = direction == ListSortDirection.Ascending | ||
| ? Application.Current.Resources["HeaderTemplateArrowUp"] as DataTemplate | ||
| : Application.Current.Resources["HeaderTemplateArrowDown"] as DataTemplate; | ||
|
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| // Remove arrow from previously sorted header | ||
| if (_lastHeaderClicked != null && _lastHeaderClicked != headerClicked) | ||
| { | ||
| _lastHeaderClicked.Column.HeaderTemplate = null; | ||
| } | ||
|
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| _lastHeaderClicked = headerClicked; | ||
| _lastDirection = direction; | ||
| } | ||
|
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| private void Sort(string sortBy, ListSortDirection direction) | ||
| { | ||
| var dataView = CollectionViewSource.GetDefaultView(AssociatedObject.ItemsSource); | ||
| dataView.SortDescriptions.Clear(); | ||
| var sd = new SortDescription(sortBy, direction); | ||
| dataView.SortDescriptions.Add(sd); | ||
| dataView.Refresh(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,84 +1,17 @@ | ||
| using FoliCon.Modules.utils; | ||
|
|
||
| namespace FoliCon.Views; | ||
| namespace FoliCon.Views; | ||
|
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| /// <summary> | ||
| /// Interaction logic for SearchResult | ||
| /// </summary> | ||
| public partial class SearchResult | ||
| { | ||
| private GridViewColumnHeader _lastHeaderClicked; | ||
| private ListSortDirection _lastDirection = ListSortDirection.Ascending; | ||
|
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| public SearchResult() | ||
| { | ||
| InitializeComponent(); | ||
| ((INotifyCollectionChanged)ListViewResult.Items).CollectionChanged += ListView_CollectionChanged; | ||
| } | ||
|
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| private void ListView_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e) | ||
| { | ||
| if (e.Action == NotifyCollectionChangedAction.Reset) | ||
| { | ||
| UiUtils.SetColumnWidth(ListViewResult); | ||
| } | ||
| } | ||
|
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| private void ListViewResult_OnClick(object sender, RoutedEventArgs e) | ||
| private void UserControl_Unloaded(object sender, RoutedEventArgs e) | ||
| { | ||
| if (e.OriginalSource is not GridViewColumnHeader headerClicked) | ||
| { | ||
| return; | ||
| } | ||
|
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| if (headerClicked.Role == GridViewColumnHeaderRole.Padding) | ||
| { | ||
| return; | ||
| } | ||
|
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| ListSortDirection direction; | ||
| if (headerClicked != _lastHeaderClicked) | ||
| { | ||
| direction = ListSortDirection.Ascending; | ||
| } | ||
| else | ||
| { | ||
| direction = _lastDirection == ListSortDirection.Ascending | ||
| ? ListSortDirection.Descending | ||
| : ListSortDirection.Ascending; | ||
| } | ||
|
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| var header = headerClicked.Column.Header as string; | ||
| Sort(header, direction); | ||
|
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| headerClicked.Column.HeaderTemplate = direction == ListSortDirection.Ascending | ||
| ? Application.Current.Resources["HeaderTemplateArrowUp"] as DataTemplate | ||
| : Application.Current.Resources["HeaderTemplateArrowDown"] as DataTemplate; | ||
|
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| // Remove arrow from previously sorted header | ||
| if (_lastHeaderClicked != null && _lastHeaderClicked != headerClicked) | ||
| { | ||
| _lastHeaderClicked.Column.HeaderTemplate = null; | ||
| } | ||
|
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|
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| _lastHeaderClicked = headerClicked; | ||
| _lastDirection = direction; | ||
| WebBox.Browser.Dispose(); | ||
| } | ||
|
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| private void Sort(string sortBy, ListSortDirection direction) | ||
| { | ||
| var dataView = | ||
| CollectionViewSource.GetDefaultView(ListViewResult.ItemsSource); | ||
|
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| dataView.SortDescriptions.Clear(); | ||
| var sd = new SortDescription(sortBy, direction); | ||
| dataView.SortDescriptions.Add(sd); | ||
| dataView.Refresh(); | ||
| } | ||
|
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| private void UserControl_Unloaded(object sender, RoutedEventArgs e) | ||
| { | ||
| WebBox.Browser.Dispose(); | ||
| } | ||
| } |