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Add dynamic context menus to main grid

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This commit is contained in:
Michael Bucari-Tovo 2022-12-12 16:38:47 -07:00
parent 451af7bea9
commit 0cc6d6337a
5 changed files with 141 additions and 53 deletions
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7
Source/LibationAvalonia/Controls/DataGridTemplateColumnExt.axaml Normal file
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@ -0,0 +1,7 @@
<DataGridTemplateColumn xmlns="https://github.com/avaloniaui"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
x:Class="LibationAvalonia.Controls.DataGridTemplateColumnExt">
</DataGridTemplateColumn>

73
Source/LibationAvalonia/Controls/DataGridTemplateColumnExt.axaml.cs Normal file
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@ -0,0 +1,73 @@
using Avalonia.Collections;
using Avalonia.Controls;
using Avalonia.Markup.Xaml;
using LibationAvalonia.ViewModels;
using System;
using System.Reflection;
namespace LibationAvalonia.Controls
{
public class DataGridViewCellContextMenuStripNeededEventArgs
{
private static readonly MethodInfo GetCellValueMethod;
static DataGridViewCellContextMenuStripNeededEventArgs()
{
GetCellValueMethod = typeof(DataGridColumn).GetMethod("GetCellValue", BindingFlags.NonPublic | BindingFlags.Instance);
}
private static string GetCellValue(DataGridColumn column, object item)
=> GetCellValueMethod.Invoke(column, new object[] { item, column.ClipboardContentBinding })?.ToString() ?? "";
public string CellClipboardContents => GetCellValue(Column, GridEntry);
public DataGridTemplateColumnExt Column { get; init; }
public GridEntry GridEntry { get; init; }
public ContextMenu ContextMenu { get; init; }
public AvaloniaList<MenuItem> ContextMenuItems
=> ContextMenu.Items as AvaloniaList<MenuItem>;
}
public partial class DataGridTemplateColumnExt : DataGridTemplateColumn
{
public event EventHandler<DataGridViewCellContextMenuStripNeededEventArgs> CellContextMenuStripNeeded;
private readonly ContextMenu ContextMenu = new();
private readonly AvaloniaList<MenuItem> MenuItems = new();
public DataGridTemplateColumnExt()
{
AvaloniaXamlLoader.Load(this);
ContextMenu.Items = MenuItems;
}
private void Cell_ContextRequested(object sender, ContextRequestedEventArgs e)
{
if (sender is DataGridCell cell && cell.DataContext is GridEntry entry)
{
var args = new DataGridViewCellContextMenuStripNeededEventArgs
{
Column = this,
GridEntry = entry,
ContextMenu = ContextMenu
};
args.ContextMenuItems.Clear();
CellContextMenuStripNeeded?.Invoke(sender, args);
e.Handled = args.ContextMenuItems.Count == 0;
}
else
e.Handled = true;
}
protected override IControl GenerateElement(DataGridCell cell, object dataItem)
{
if (cell.ContextMenu is null)
{
cell.ContextRequested += Cell_ContextRequested;
cell.ContextMenu = ContextMenu;
}
return base.GenerateElement(cell, dataItem);
}
}
}

3
Source/LibationAvalonia/LibationAvalonia.csproj
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@ -89,6 +89,9 @@
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<Compile Update="Controls\DataGridTemplateColumnExt.axaml.cs">
<DependentUpon>DataGridTemplateColumnExt.axaml</DependentUpon>
</Compile>
<Compile Update="Properties\Resources.Designer.cs"> <Compile Update="Properties\Resources.Designer.cs">
<DesignTime>True</DesignTime> <DesignTime>True</DesignTime>
<AutoGen>True</AutoGen> <AutoGen>True</AutoGen>

64
Source/LibationAvalonia/Views/ProductsDisplay.axaml
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@ -16,10 +16,11 @@
AutoGenerateColumns="False" AutoGenerateColumns="False"
Items="{Binding GridEntries}" Items="{Binding GridEntries}"
CanUserSortColumns="True" CanUserSortColumns="True"
SelectionMode="Single"
CanUserReorderColumns="True"> CanUserReorderColumns="True">
<DataGrid.Columns> <DataGrid.Columns>
<DataGridTemplateColumn <DataGridTemplateColumn
CanUserSort="True" CanUserSort="True"
IsVisible="{Binding RemoveColumnVisivle}" IsVisible="{Binding RemoveColumnVisivle}"
@ -28,7 +29,7 @@
IsReadOnly="False" IsReadOnly="False"
SortMemberPath="Remove" SortMemberPath="Remove"
Width="75"> Width="75">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<CheckBox <CheckBox
@ -39,22 +40,15 @@
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </DataGridTemplateColumn>
<DataGridTemplateColumn CanUserSort="True" Width="75" Header="Liberate" SortMemberPath="Liberate" ClipboardContentBinding="{Binding Liberate.ToolTip}"> <controls:DataGridTemplateColumnExt CanUserSort="True" Width="75" Header="Liberate" SortMemberPath="Liberate" ClipboardContentBinding="{Binding Liberate.ToolTip}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Button Padding="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Click="LiberateButton_Click" ToolTip.Tip="{Binding Liberate.ToolTip}"> <Button Padding="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Click="LiberateButton_Click" ToolTip.Tip="{Binding Liberate.ToolTip}">
<Image Stretch="None" Source="{Binding Liberate.Image}" /> <Image Stretch="None" Source="{Binding Liberate.Image}" />
<Button.ContextMenu>
<ContextMenu IsVisible="{Binding !Liberate.IsSeries}">
<MenuItem Header="Item 1" Click="ContextMenuItem1_Click" />
<MenuItem Header="Item 2" Click="ContextMenuItem2_Click" />
<MenuItem Header="Item 3" Click="ContextMenuItem3_Click" />
</ContextMenu>
</Button.ContextMenu>
</Button> </Button>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn CanUserSort="False" Width="80" Header="Cover" SortMemberPath="Cover" ClipboardContentBinding="{Binding LibraryBook.Book.PictureLarge}"> <DataGridTemplateColumn CanUserSort="False" Width="80" Header="Cover" SortMemberPath="Cover" ClipboardContentBinding="{Binding LibraryBook.Book.PictureLarge}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
@ -64,7 +58,7 @@
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </DataGridTemplateColumn>
<DataGridTemplateColumn MinWidth="150" Width="2*" Header="Title" CanUserSort="True" SortMemberPath="Title" ClipboardContentBinding="{Binding Title}"> <controls:DataGridTemplateColumnExt MinWidth="150" Width="2*" Header="Title" CanUserSort="True" SortMemberPath="Title" ClipboardContentBinding="{Binding Title}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Panel Background="{Binding BackgroundBrush}"> <Panel Background="{Binding BackgroundBrush}">
@ -74,9 +68,9 @@
</Panel> </Panel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn MinWidth="80" Width="1*" Header="Authors" CanUserSort="True" SortMemberPath="Authors" ClipboardContentBinding="{Binding Authors}"> <controls:DataGridTemplateColumnExt MinWidth="80" Width="1*" Header="Authors" CanUserSort="True" SortMemberPath="Authors" ClipboardContentBinding="{Binding Authors}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Panel Background="{Binding BackgroundBrush}"> <Panel Background="{Binding BackgroundBrush}">
@ -86,9 +80,9 @@
</Panel> </Panel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn MinWidth="80" Width="1*" Header="Narrators" CanUserSort="True" SortMemberPath="Narrators" ClipboardContentBinding="{Binding Narrators}"> <controls:DataGridTemplateColumnExt MinWidth="80" Width="1*" Header="Narrators" CanUserSort="True" SortMemberPath="Narrators" ClipboardContentBinding="{Binding Narrators}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Panel Background="{Binding BackgroundBrush}"> <Panel Background="{Binding BackgroundBrush}">
@ -98,9 +92,9 @@
</Panel> </Panel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn Width="90" Header="Length" CanUserSort="True" SortMemberPath="Length" ClipboardContentBinding="{Binding Length}"> <controls:DataGridTemplateColumnExt Width="90" Header="Length" CanUserSort="True" SortMemberPath="Length" ClipboardContentBinding="{Binding Length}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Panel Background="{Binding BackgroundBrush}"> <Panel Background="{Binding BackgroundBrush}">
@ -110,9 +104,9 @@
</Panel> </Panel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn MinWidth="80" Width="1*" Header="Series" CanUserSort="True" SortMemberPath="Series" ClipboardContentBinding="{Binding Series}"> <controls:DataGridTemplateColumnExt MinWidth="80" Width="1*" Header="Series" CanUserSort="True" SortMemberPath="Series" ClipboardContentBinding="{Binding Series}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Panel Background="{Binding BackgroundBrush}"> <Panel Background="{Binding BackgroundBrush}">
@ -122,9 +116,9 @@
</Panel> </Panel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn MinWidth="100" Width="1*" Header="Description" CanUserSort="True" SortMemberPath="Description" ClipboardContentBinding="{Binding LongDescription}"> <controls:DataGridTemplateColumnExt MinWidth="100" Width="1*" Header="Description" CanUserSort="True" SortMemberPath="Description" ClipboardContentBinding="{Binding LongDescription}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Panel Background="{Binding BackgroundBrush}"> <Panel Background="{Binding BackgroundBrush}">
@ -134,9 +128,9 @@
</Panel> </Panel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn Width="100" Header="Category" CanUserSort="True" SortMemberPath="Category" ClipboardContentBinding="{Binding Category}"> <controls:DataGridTemplateColumnExt Width="100" Header="Category" CanUserSort="True" SortMemberPath="Category" ClipboardContentBinding="{Binding Category}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Panel Background="{Binding BackgroundBrush}"> <Panel Background="{Binding BackgroundBrush}">
@ -146,9 +140,9 @@
</Panel> </Panel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn Width="120" Header="Product&#xA;Rating" CanUserSort="True" SortMemberPath="ProductRating" ClipboardContentBinding="{Binding ProductRating}"> <controls:DataGridTemplateColumnExt Width="120" Header="Product&#xA;Rating" CanUserSort="True" SortMemberPath="ProductRating" ClipboardContentBinding="{Binding ProductRating}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Panel Background="{Binding BackgroundBrush}"> <Panel Background="{Binding BackgroundBrush}">
@ -158,9 +152,9 @@
</Panel> </Panel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn Width="90" Header="Purchase&#xA;Date" CanUserSort="True" SortMemberPath="PurchaseDate" ClipboardContentBinding="{Binding PurchaseDate}"> <controls:DataGridTemplateColumnExt Width="90" Header="Purchase&#xA;Date" CanUserSort="True" SortMemberPath="PurchaseDate" ClipboardContentBinding="{Binding PurchaseDate}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Panel Background="{Binding BackgroundBrush}"> <Panel Background="{Binding BackgroundBrush}">
@ -170,9 +164,9 @@
</Panel> </Panel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn Width="120" Header="My Rating" CanUserSort="True" SortMemberPath="MyRating" ClipboardContentBinding="{Binding MyRating}"> <controls:DataGridTemplateColumnExt Width="120" Header="My Rating" CanUserSort="True" SortMemberPath="MyRating" ClipboardContentBinding="{Binding MyRating}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Panel Background="{Binding BackgroundBrush}"> <Panel Background="{Binding BackgroundBrush}">
@ -182,9 +176,9 @@
</Panel> </Panel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn Width="135" Header="Misc" CanUserSort="True" SortMemberPath="Misc" ClipboardContentBinding="{Binding Misc}"> <controls:DataGridTemplateColumnExt Width="135" Header="Misc" CanUserSort="True" SortMemberPath="Misc" ClipboardContentBinding="{Binding Misc}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<Panel Background="{Binding BackgroundBrush}"> <Panel Background="{Binding BackgroundBrush}">
@ -194,9 +188,9 @@
</Panel> </Panel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
<DataGridTemplateColumn CanUserSort="True" Width="100" Header="Tags" SortMemberPath="BookTags" ClipboardContentBinding="{Binding BookTags.Tags}"> <controls:DataGridTemplateColumnExt CanUserSort="True" Width="100" Header="Tags" SortMemberPath="BookTags" ClipboardContentBinding="{Binding BookTags.Tags}">
<DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellTemplate>
<DataTemplate> <DataTemplate>
<StackPanel Orientation="Horizontal"> <StackPanel Orientation="Horizontal">
@ -209,7 +203,7 @@
</StackPanel> </StackPanel>
</DataTemplate> </DataTemplate>
</DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn> </controls:DataGridTemplateColumnExt>
</DataGrid.Columns> </DataGrid.Columns>
</DataGrid> </DataGrid>

47
Source/LibationAvalonia/Views/ProductsDisplay.axaml.cs
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@ -10,7 +10,7 @@ using LibationAvalonia.Dialogs;
using System; using System;
using System.Collections.Generic; using System.Collections.Generic;
using System.Linq; using System.Linq;
using Avalonia.Interactivity; using LibationAvalonia.Controls;
namespace LibationAvalonia.Views namespace LibationAvalonia.Views
{ {
@ -53,7 +53,7 @@ namespace LibationAvalonia.Views
{ {
column.CustomSortComparer = new RowComparer(column); column.CustomSortComparer = new RowComparer(column);
} }
} }
private void RemoveColumn_PropertyChanged(object sender, AvaloniaPropertyChangedEventArgs e) private void RemoveColumn_PropertyChanged(object sender, AvaloniaPropertyChangedEventArgs e)
{ {
@ -71,6 +71,29 @@ namespace LibationAvalonia.Views
productsGrid = this.FindControl<DataGrid>(nameof(productsGrid)); productsGrid = this.FindControl<DataGrid>(nameof(productsGrid));
} }
#region Cell Context Menu
public void ProductsGrid_CellContextMenuStripNeeded(object sender, DataGridViewCellContextMenuStripNeededEventArgs args)
{
if (args.Column.SortMemberPath == "Liberate")
{
}
else
{
// any non-stop light column
// (except for the Cover column which does not have a context menu)
var menuItem = new MenuItem { Header = "_Copy Cell Contents" };
menuItem.Click += async (s, e)
=> await Application.Current.Clipboard.SetTextAsync(args.CellClipboardContents);
args.ContextMenuItems.Add(menuItem);
}
}
#endregion
#region Column Customizations #region Column Customizations
private void Configure_ColumnCustomization() private void Configure_ColumnCustomization()
@ -96,6 +119,10 @@ namespace LibationAvalonia.Views
foreach (var column in productsGrid.Columns) foreach (var column in productsGrid.Columns)
{ {
//Wire up column context menu
if (column is DataGridTemplateColumnExt tc)
tc.CellContextMenuStripNeeded += ProductsGrid_CellContextMenuStripNeeded;
var itemName = column.SortMemberPath; var itemName = column.SortMemberPath;
if (itemName == nameof(GridEntry.Remove)) if (itemName == nameof(GridEntry.Remove))
@ -185,22 +212,6 @@ namespace LibationAvalonia.Views
#region Button Click Handlers #region Button Click Handlers
public void ContextMenuItem1_Click(object sender, Avalonia.Interactivity.RoutedEventArgs args)
{
var lbe = getBoundEntry(args.Source);
}
public void ContextMenuItem2_Click(object sender, Avalonia.Interactivity.RoutedEventArgs args)
{
var lbe = getBoundEntry(args.Source);
}
public void ContextMenuItem3_Click(object sender, Avalonia.Interactivity.RoutedEventArgs args)
{
var lbe = getBoundEntry(args.Source);
}
private static LibraryBookEntry getBoundEntry(IInteractive source)
=> (source is IStyledElement se && se.DataContext is LibraryBookEntry lbe ? lbe : null);
public void LiberateButton_Click(object sender, Avalonia.Interactivity.RoutedEventArgs args) public void LiberateButton_Click(object sender, Avalonia.Interactivity.RoutedEventArgs args)
{ {
var button = args.Source as Button; var button = args.Source as Button;