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-rw-r--r--Xamarin.Forms.Platform.MacOS/Renderers/ListViewDataSource.cs299
1 files changed, 0 insertions, 299 deletions
diff --git a/Xamarin.Forms.Platform.MacOS/Renderers/ListViewDataSource.cs b/Xamarin.Forms.Platform.MacOS/Renderers/ListViewDataSource.cs
deleted file mode 100644
index 6742053..0000000
--- a/Xamarin.Forms.Platform.MacOS/Renderers/ListViewDataSource.cs
+++ /dev/null
@@ -1,299 +0,0 @@
-´╗┐using System;
-using System.Collections;
-using System.Collections.Generic;
-using AppKit;
-using Foundation;
-
-namespace Xamarin.Forms.Platform.MacOS
-{
- internal class ListViewDataSource : NSTableViewSource
- {
- IVisualElementRenderer _prototype;
- const int DefaultItemTemplateId = 1;
- static int s_dataTemplateIncrementer = 2; // lets start at not 0 because
- static int s_sectionCount;
- readonly nfloat _defaultSectionHeight;
- readonly Dictionary<DataTemplate, int> _templateToId = new Dictionary<DataTemplate, int>();
- readonly NSTableView _nsTableView;
- protected readonly ListView List;
-
- IListViewController Controller => List;
-
- ITemplatedItemsView<Cell> TemplatedItemsView => List;
-
- bool _selectionFromNative;
-
- public virtual bool IsGroupingEnabled => List.IsGroupingEnabled;
-
- public Dictionary<int, int> Counts { get; set; }
-
- public ListViewDataSource(ListViewDataSource source)
- {
- List = source.List;
- _nsTableView = source._nsTableView;
- _defaultSectionHeight = source._defaultSectionHeight;
- _selectionFromNative = source._selectionFromNative;
- Counts = new Dictionary<int, int>();
- }
-
- public ListViewDataSource(ListView list, NSTableView tableView)
- {
- List = list;
- List.ItemSelected += OnItemSelected;
- _nsTableView = tableView;
- Counts = new Dictionary<int, int>();
- }
-
- public void Update()
- {
- _nsTableView.ReloadData();
- }
-
- public void OnRowClicked()
- {
- var selectedRow = _nsTableView.SelectedRow;
- if (selectedRow == -1)
- return;
-
- Cell cell = null;
- NSIndexPath indexPath = GetPathFromRow(selectedRow, ref cell);
-
- if (cell == null)
- return;
-
- _selectionFromNative = true;
- Controller.NotifyRowTapped((int)indexPath.Section, (int)indexPath.Item, cell);
- }
-
-
- public void OnItemSelected(object sender, SelectedItemChangedEventArgs eventArg)
- {
- if (_selectionFromNative)
- {
- _selectionFromNative = false;
- return;
- }
-
- var location = TemplatedItemsView.TemplatedItems.GetGroupAndIndexOfItem(eventArg.SelectedItem);
- if (location.Item1 == -1 || location.Item2 == -1)
- {
- var row = _nsTableView.SelectedRow;
- int groupIndex = 1;
- var selectedIndexPath = NSIndexPath.FromItemSection(row, groupIndex);
- if (selectedIndexPath != null)
- _nsTableView.DeselectRow(selectedIndexPath.Item);
- return;
- }
-
- var rowId = location.Item2;
-
- _nsTableView.SelectRow(rowId, false);
- }
-
- public override bool IsGroupRow(NSTableView tableView, nint row)
- {
- if (!IsGroupingEnabled)
- return false;
-
- int sectionIndex;
- bool isGroupHeader;
- int itemIndexInSection;
-
- GetComputedIndexes(row, out sectionIndex, out itemIndexInSection, out isGroupHeader);
- return isGroupHeader;
- }
-
- public override bool ShouldSelectRow(NSTableView tableView, nint row)
- {
- return !IsGroupRow(tableView, row);
- }
-
- public override nfloat GetRowHeight(NSTableView tableView, nint row)
- {
- if (!List.HasUnevenRows)
- return List.RowHeight == -1 ? ListViewRenderer.DefaultRowHeight : List.RowHeight;
-
- Cell cell = null;
- GetPathFromRow(row, ref cell);
-
- return CalculateHeightForCell(tableView, cell);
- }
-
- public override nint GetRowCount(NSTableView tableView)
- {
- var templatedItems = TemplatedItemsView.TemplatedItems;
- nint count = 0;
-
- if (!IsGroupingEnabled)
- {
- count = templatedItems.Count;
- }
- else
- {
- var sections = templatedItems.Count;
- for (int i = 0; i < sections; i++)
- {
- var group = (IList)((IList)templatedItems)[i];
- count += group.Count + 1;
- }
- s_sectionCount = sections;
- }
- return count;
- }
-
- public override NSView GetViewForItem(NSTableView tableView, NSTableColumn tableColumn, nint row)
- {
- var sectionIndex = 0;
- var itemIndexInSection = (int)row;
- Cell cell;
-
- var isHeader = false;
-
- if (IsGroupingEnabled)
- GetComputedIndexes(row, out sectionIndex, out itemIndexInSection, out isHeader);
-
- var indexPath = NSIndexPath.FromItemSection(itemIndexInSection, sectionIndex);
- var templateId = isHeader ? "headerCell" : TemplateIdForPath(indexPath).ToString();
-
- NSView nativeCell;
-
- var cachingStrategy = Controller.CachingStrategy;
- if (cachingStrategy == ListViewCachingStrategy.RetainElement)
- {
- cell = GetCellForPath(indexPath, isHeader);
- nativeCell = CellNSView.GetNativeCell(tableView, cell, templateId, isHeader);
- }
- else if (cachingStrategy == ListViewCachingStrategy.RecycleElement)
- {
- nativeCell = tableView.MakeView(templateId, tableView);
- if (nativeCell == null)
- {
- cell = GetCellForPath(indexPath, isHeader);
- nativeCell = CellNSView.GetNativeCell(tableView, cell, templateId, isHeader, true);
- }
- else
- {
- var templatedList = TemplatedItemsView.TemplatedItems.GetGroup(sectionIndex);
- cell = (Cell)((INativeElementView)nativeCell).Element;
- ICellController controller = cell;
- controller.SendDisappearing();
- templatedList.UpdateContent(cell, itemIndexInSection);
- controller.SendAppearing();
- }
- }
- else
- throw new NotSupportedException();
- return nativeCell;
- }
-
- protected virtual Cell GetCellForPath(NSIndexPath indexPath, bool isGroupHeader)
- {
- var templatedItems = TemplatedItemsView.TemplatedItems;
- if (IsGroupingEnabled)
- templatedItems = (TemplatedItemsList<ItemsView<Cell>, Cell>)((IList)templatedItems)[(int)indexPath.Section];
-
- var cell = isGroupHeader ? templatedItems.HeaderContent : templatedItems[(int)indexPath.Item];
- return cell;
- }
-
- int TemplateIdForPath(NSIndexPath indexPath)
- {
- var itemTemplate = List.ItemTemplate;
- var selector = itemTemplate as DataTemplateSelector;
- if (selector == null)
- return DefaultItemTemplateId;
-
- var templatedList = TemplatedItemsView.TemplatedItems;
- if (List.IsGroupingEnabled)
- templatedList = (TemplatedItemsList<ItemsView<Cell>, Cell>)((IList)templatedList)[(int)indexPath.Section];
-
- var item = templatedList.ListProxy[(int)indexPath.Item];
-
- itemTemplate = selector.SelectTemplate(item, List);
- int key;
- if (!_templateToId.TryGetValue(itemTemplate, out key))
- {
- s_dataTemplateIncrementer++;
- key = s_dataTemplateIncrementer;
- _templateToId[itemTemplate] = key;
- }
- return key;
- }
-
- NSIndexPath GetPathFromRow(nint row, ref Cell cell)
- {
- var sectionIndex = 0;
- bool isGroupHeader = false;
- int itemIndexInSection;
- if (IsGroupingEnabled)
- GetComputedIndexes(row, out sectionIndex, out itemIndexInSection, out isGroupHeader);
- else
- itemIndexInSection = (int)row;
- NSIndexPath indexPath = NSIndexPath.FromItemSection(itemIndexInSection, sectionIndex);
- cell = GetCellForPath(indexPath, isGroupHeader);
- return indexPath;
- }
-
- nfloat CalculateHeightForCell(NSTableView tableView, Cell cell)
- {
- var viewCell = cell as ViewCell;
- double renderHeight;
- if (List.RowHeight == -1 && viewCell?.View != null)
- {
- var target = viewCell.View;
- if (_prototype == null)
- {
- _prototype = Platform.CreateRenderer(target);
- Platform.SetRenderer(target, _prototype);
- }
- else
- {
- _prototype.SetElement(target);
- Platform.SetRenderer(target, _prototype);
- }
-
- var req = target.Measure(tableView.Frame.Width, double.PositiveInfinity, MeasureFlags.IncludeMargins);
-
- target.ClearValue(Platform.RendererProperty);
- foreach (var descendant in target.Descendants())
- descendant.ClearValue(Platform.RendererProperty);
-
- renderHeight = req.Request.Height;
- }
- else
- {
- renderHeight = cell.RenderHeight;
- }
-
- return renderHeight > 0 ? (nfloat)renderHeight : ListViewRenderer.DefaultRowHeight;
- }
-
- void GetComputedIndexes(nint row, out int sectionIndex, out int itemIndexInSection, out bool isHeader)
- {
- var templatedItems = TemplatedItemsView.TemplatedItems;
- var totalItems = 0;
- isHeader = false;
- sectionIndex = 0;
- itemIndexInSection = 0;
-
- for (int i = 0; i < s_sectionCount; i++)
- {
- var group = (IList)((IList)templatedItems)[i];
- var itemsInSection = group.Count + 1;
-
- if (row < totalItems + itemsInSection)
- {
- sectionIndex = i;
- itemIndexInSection = (int)row - totalItems;
- isHeader = itemIndexInSection == 0;
- if (isHeader)
- itemIndexInSection = -1;
- else
- itemIndexInSection = itemIndexInSection - 1;
- break;
- }
- totalItems += itemsInSection;
- }
- }
- }
-} \ No newline at end of file