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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Drawing;
using System.Reflection;
using Microsoft.DotNet.RemoteExecutor;
using Windows.Win32.System.Variant;
using Windows.Win32.UI.Accessibility;
using static System.Windows.Forms.ListView;
using static System.Windows.Forms.ListViewGroup;
namespace System.Windows.Forms.Tests.AccessibleObjects;
public class ListViewGroup_ListViewGroupAccessibleObjectTests
{
[WinFormsFact]
public void ListViewGroupAccessibleObject_Ctor_ThrowsArgumentNullException()
{
using ListView list = new();
ListViewGroup listGroup = new("Group1");
listGroup.Items.Add(new ListViewItem());
list.Groups.Add(listGroup);
Type type = listGroup.AccessibilityObject.GetType();
ConstructorInfo ctor = type.GetConstructor([typeof(ListViewGroup), typeof(bool)]);
Assert.NotNull(ctor);
Assert.Throws<TargetInvocationException>(() => ctor.Invoke([null, false]));
// group without parent ListView
ListViewGroup listGroupWithoutList = new("Group2");
Assert.Throws<TargetInvocationException>(() => ctor.Invoke([listGroupWithoutList, false]));
}
[WinFormsFact]
public void ListViewGroupAccessibleObject_Ctor_Default()
{
using ListView list = new();
ListViewGroup listGroup = new("Group1");
listGroup.Items.Add(new ListViewItem());
list.Groups.Add(listGroup);
AccessibleObject accessibleObject = listGroup.AccessibilityObject;
Assert.False(list.IsHandleCreated);
Assert.NotNull(accessibleObject);
Assert.Equal(AccessibleRole.Grouping, accessibleObject.Role);
}
[WinFormsFact]
public void ListViewGroupAccessibleObject_GetPropertyValue_ReturnsExpected_WithoutDefaultGroup()
{
using ListView list = new();
ListViewGroup listGroup = new("Group1");
listGroup.Items.Add(new ListViewItem());
list.Groups.Add(listGroup);
AccessibleObject accessibleObject = listGroup.AccessibilityObject;
Assert.False(list.IsHandleCreated);
string accessibleName = ((BSTR)accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_NamePropertyId)).ToStringAndFree();
Assert.Equal("Group1", accessibleName);
string automationId = ((BSTR)accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_AutomationIdPropertyId)).ToStringAndFree();
Assert.Equal("ListViewGroup-0", automationId);
var controlType = (UIA_CONTROLTYPE_ID)(int)accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ControlTypePropertyId);
UIA_CONTROLTYPE_ID expected = UIA_CONTROLTYPE_ID.UIA_GroupControlTypeId;
Assert.Equal(expected, controlType);
Assert.True((bool)accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_IsLegacyIAccessiblePatternAvailablePropertyId));
Assert.Equal(AccessibleRole.Grouping, (AccessibleRole)(int)accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_LegacyIAccessibleRolePropertyId));
Assert.False(list.IsHandleCreated);
}
[WinFormsFact]
public void ListViewGroupAccessibleObject_GetPropertyValue_ReturnsExpected_WithDefaultGroup()
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView list = new();
ListViewGroup listGroup = new("Group1");
listGroup.Items.Add(new ListViewItem());
list.Items.Add(new ListViewItem());
list.Groups.Add(listGroup);
AccessibleObject defaultGroupAccessibleObject = list.DefaultGroup.AccessibilityObject;
AccessibleObject groupAccessibleObject = listGroup.AccessibilityObject;
Assert.Equal(list.DefaultGroup.Header, ((BSTR)defaultGroupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_NamePropertyId)).ToStringAndFree());
Assert.Equal("Group1", ((BSTR)groupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_NamePropertyId)).ToStringAndFree());
Assert.Equal("Group1", ((BSTR)groupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_LegacyIAccessibleNamePropertyId)).ToStringAndFree());
Assert.Equal("ListViewGroup-0", ((BSTR)defaultGroupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_AutomationIdPropertyId)).ToStringAndFree());
Assert.Equal("ListViewGroup-1", ((BSTR)groupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_AutomationIdPropertyId)).ToStringAndFree());
Assert.Equal(UIA_CONTROLTYPE_ID.UIA_GroupControlTypeId, (UIA_CONTROLTYPE_ID)(int)groupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ControlTypePropertyId));
Assert.Equal(UIA_CONTROLTYPE_ID.UIA_GroupControlTypeId, (UIA_CONTROLTYPE_ID)(int)defaultGroupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ControlTypePropertyId));
Assert.True((bool)defaultGroupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_IsLegacyIAccessiblePatternAvailablePropertyId));
Assert.True((bool)groupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_IsLegacyIAccessiblePatternAvailablePropertyId));
Assert.Equal(AccessibleRole.Grouping, (AccessibleRole)(int)defaultGroupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_LegacyIAccessibleRolePropertyId));
Assert.Equal(AccessibleRole.Grouping, (AccessibleRole)(int)groupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_LegacyIAccessibleRolePropertyId));
Assert.Equal(VARIANT.Empty, groupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
Assert.Equal("WinForm", ((BSTR)groupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_FrameworkIdPropertyId)).ToStringAndFree());
Assert.False(list.IsHandleCreated);
}
[WinFormsFact]
public void ListViewGroupAccessibleObject_GetPropertyValue_ReturnsExpected_WithSubtitle()
{
using ListView list = new();
const string name = "Group1";
const string subtitle = "Subtitle";
ListViewGroup listGroup = new(name) { Subtitle = subtitle };
listGroup.Items.Add(new ListViewItem());
list.Groups.Add(listGroup);
AccessibleObject accessibleObject = listGroup.AccessibilityObject;
Assert.False(list.IsHandleCreated);
string accessibleName = ((BSTR)accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_NamePropertyId)).ToStringAndFree();
Assert.Equal($"{name}. {subtitle}", accessibleName);
Assert.False(list.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroupAccessibleObject_TestData))]
public void ListViewGroupAccessibleObject_FragmentNavigate_ReturnsExpected_WithDefaultGroup(View view, bool showGroups, bool createHandle)
{
using ListView listView = new()
{
View = view,
ShowGroups = showGroups,
Size = new Size(200, 200)
};
ListViewGroupCollection groups = listView.Groups;
ListViewItemCollection items = listView.Items;
groups.Add(new ListViewGroup("Group1"));
groups.Add(new ListViewGroup("Group2"));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem());
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
if (createHandle)
{
Assert.NotEqual(IntPtr.Zero, listView.Handle);
}
if (listView.IsHandleCreated && listView.GroupsDisplayed)
{
Assert.Equal(listView.AccessibilityObject, listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Equal(groups[0].AccessibilityObject, listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Equal(items[2].AccessibilityObject, listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Equal(items[2].AccessibilityObject, listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
Assert.Equal(listView.AccessibilityObject, groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Equal(groups[1].AccessibilityObject, groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Equal(listView.DefaultGroup.AccessibilityObject, groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Equal(items[0].AccessibilityObject, groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Equal(items[1].AccessibilityObject, groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
Assert.Equal(listView.AccessibilityObject, groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Null(groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Equal(groups[0].AccessibilityObject, groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Equal(items[3].AccessibilityObject, groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Equal(items[5].AccessibilityObject, groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
}
else
{
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
Assert.Null(listView.Groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Null(listView.Groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Null(listView.Groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(listView.Groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Null(listView.Groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
Assert.Null(listView.Groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Null(listView.Groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Null(listView.Groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(listView.Groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Null(listView.Groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
}
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroupAccessibleObject_TestData))]
public void ListViewGroupAccessibleObject_FragmentNavigate_ReturnsExpected_WithoutDefaultGroup(View view, bool showGroups, bool createHandle)
{
using ListView listView = new()
{
View = view,
ShowGroups = showGroups,
Size = new Size(200, 200)
};
ListViewGroupCollection groups = listView.Groups;
ListViewItemCollection items = listView.Items;
groups.Add(new ListViewGroup("Group1"));
groups.Add(new ListViewGroup("Group2"));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
if (createHandle)
{
Assert.NotEqual(IntPtr.Zero, listView.Handle);
}
if (listView.IsHandleCreated && listView.GroupsDisplayed)
{
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
Assert.Equal(listView.AccessibilityObject, groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Equal(groups[1].AccessibilityObject, groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Null(groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Equal(items[0].AccessibilityObject, groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Equal(items[2].AccessibilityObject, groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
Assert.Equal(listView.AccessibilityObject, listView.Groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Null(groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Equal(groups[0].AccessibilityObject, groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Equal(items[3].AccessibilityObject, groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Equal(items[5].AccessibilityObject, groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
}
else
{
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Null(listView.DefaultGroup.AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
Assert.Null(groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Null(groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Null(groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Null(groups[0].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
Assert.Null(groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent));
Assert.Null(groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Null(groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Null(groups[1].AccessibilityObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
}
}
[WinFormsFact]
public void ListViewGroupAccessibleObject_Bounds_ReturnsCorrectValue()
{
using RemoteInvokeHandle invokerHandle = RemoteExecutor.Invoke(() =>
{
Control.CheckForIllegalCrossThreadCalls = true;
using Form form = new();
using ListView list = new();
ListViewGroup listGroup = new("Group1");
ListViewItem listItem1 = new("Item1");
ListViewItem listItem2 = new("Item2");
list.Groups.Add(listGroup);
listItem1.Group = listGroup;
listItem2.Group = listGroup;
list.Items.Add(listItem1);
list.Items.Add(listItem2);
list.CreateControl();
form.Controls.Add(list);
form.Show();
AccessibleObject accessibleObject = list.AccessibilityObject;
AccessibleObject group1AccObj = listGroup.AccessibilityObject;
Assert.True(list.IsHandleCreated);
RECT groupRect = default;
PInvokeCore.SendMessage(list, PInvoke.LVM_GETGROUPRECT, (WPARAM)listGroup.ID, ref groupRect);
int actualWidth = group1AccObj.Bounds.Width;
int expectedWidth = groupRect.Width;
Assert.Equal(expectedWidth, actualWidth);
int actualHeight = group1AccObj.Bounds.Height;
int expectedHeight = groupRect.Height;
Assert.Equal(expectedHeight, actualHeight);
Rectangle actualBounds = group1AccObj.Bounds;
actualBounds.Location = new Point(0, 0);
Rectangle expectedBounds = groupRect;
Assert.Equal(expectedBounds, actualBounds);
});
// verify the remote process succeeded
Assert.Equal(RemoteExecutor.SuccessExitCode, invokerHandle.ExitCode);
}
[WinFormsFact]
public void ListViewGroupAccessibleObject_Bounds_ReturnsCorrectValue_PostHandle()
{
using Form form = new();
using ListView listView = new();
form.Controls.Add(listView);
form.Show();
Assert.True(listView.IsHandleCreated);
ListViewGroup group = new();
listView.Groups.Add(group);
listView.Items.Add(new ListViewItem("a", group));
RECT groupRect = default;
PInvokeCore.SendMessage(listView, PInvoke.LVM_GETGROUPRECT, (WPARAM)group.ID, ref groupRect);
AccessibleObject groupAccObj = group.AccessibilityObject;
int actualWidth = groupAccObj.Bounds.Width;
int expectedWidth = groupRect.Width;
Assert.Equal(expectedWidth, actualWidth);
int actualHeight = groupAccObj.Bounds.Height;
int expectedHeight = groupRect.Height;
Assert.Equal(expectedHeight, actualHeight);
Rectangle actualBounds = groupAccObj.Bounds;
actualBounds.Location = new Point(0, 0);
Rectangle expectedBounds = groupRect;
Assert.Equal(expectedBounds, actualBounds);
}
public static IEnumerable<object[]> ListViewGroupAccessibleObject_TestData()
{
foreach (View view in Enum.GetValues(typeof(View)))
{
foreach (bool showGroups in new[] { true, false })
{
foreach (bool createHandle in new[] { true, false })
{
yield return new object[] { view, showGroups, createHandle };
}
}
}
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroupAccessibleObject_TestData))]
public void ListViewGroupAccessibleObject_GetChildIndex_ReturnsExpected(View view, bool showGroups, bool createHandle)
{
using ListView listView = new()
{
View = view,
ShowGroups = showGroups,
Size = new Size(200, 200)
};
ListViewGroupCollection groups = listView.Groups;
ListViewItemCollection items = listView.Items;
groups.Add(new ListViewGroup("Group1"));
groups.Add(new ListViewGroup("Group2"));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem());
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
ListViewItem itemWithoutListView1 = new(groups[1]);
ListViewItem itemWithoutListView2 = new(groups[1]);
if (createHandle)
{
Assert.NotEqual(IntPtr.Zero, listView.Handle);
}
if (listView.IsHandleCreated && listView.GroupsDisplayed)
{
Assert.Equal(0, groups[0].AccessibilityObject.GetChildIndex(items[0].AccessibilityObject));
Assert.Equal(1, groups[0].AccessibilityObject.GetChildIndex(items[1].AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(items[2].AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(items[3].AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(items[4].AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(items[5].AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(itemWithoutListView1.AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(itemWithoutListView2.AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(items[0].AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(items[1].AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(items[2].AccessibilityObject));
Assert.Equal(0, groups[1].AccessibilityObject.GetChildIndex(items[3].AccessibilityObject));
Assert.Equal(1, groups[1].AccessibilityObject.GetChildIndex(items[4].AccessibilityObject));
Assert.Equal(2, groups[1].AccessibilityObject.GetChildIndex(items[5].AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(itemWithoutListView1.AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(itemWithoutListView2.AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[0].AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[1].AccessibilityObject));
Assert.Equal(0, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[2].AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[3].AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[4].AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[5].AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(itemWithoutListView1.AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(itemWithoutListView2.AccessibilityObject));
}
else
{
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(items[0].AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(items[1].AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(items[2].AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(items[3].AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(items[4].AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(items[5].AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(itemWithoutListView1.AccessibilityObject));
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(itemWithoutListView2.AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(items[0].AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(items[1].AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(items[2].AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(items[3].AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(items[4].AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(items[5].AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(itemWithoutListView1.AccessibilityObject));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(itemWithoutListView2.AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[0].AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[1].AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[2].AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[3].AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[4].AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(items[5].AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(itemWithoutListView1.AccessibilityObject));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(itemWithoutListView2.AccessibilityObject));
}
Assert.Equal(createHandle, listView.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroupAccessibleObject_TestData))]
public void ListViewGroupAccessibleObject_GetChildIndex_ReturnsMinusOne_IfChildIsNull(View view, bool showGroups, bool createHandle)
{
using ListView listView = new()
{
View = view,
ShowGroups = showGroups,
Size = new Size(200, 200)
};
ListViewGroupCollection groups = listView.Groups;
ListViewItemCollection items = listView.Items;
groups.Add(new ListViewGroup("Group1"));
groups.Add(new ListViewGroup("Group2"));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem());
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
if (createHandle)
{
Assert.NotEqual(IntPtr.Zero, listView.Handle);
}
Assert.Equal(-1, groups[0].AccessibilityObject.GetChildIndex(null));
Assert.Equal(-1, groups[1].AccessibilityObject.GetChildIndex(null));
Assert.Equal(-1, listView.DefaultGroup.AccessibilityObject.GetChildIndex(null));
Assert.Equal(createHandle, listView.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroupAccessibleObject_TestData))]
public void ListViewGroupAccessibleObject_GetChildCount_Invoke_ReturnsExpected(View view, bool showGroups, bool createHandle)
{
using ListView listView = new()
{
View = view,
ShowGroups = showGroups,
Size = new Size(200, 200)
};
ListViewGroupCollection groups = listView.Groups;
ListViewItemCollection items = listView.Items;
groups.Add(new ListViewGroup("Group1"));
groups.Add(new ListViewGroup("Group2"));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem());
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
if (createHandle)
{
Assert.NotEqual(IntPtr.Zero, listView.Handle);
}
ListViewGroupAccessibleObject group1AccObj = (ListViewGroupAccessibleObject)groups[0].AccessibilityObject;
ListViewGroupAccessibleObject group2AccObj = (ListViewGroupAccessibleObject)groups[1].AccessibilityObject;
ListViewGroupAccessibleObject defaultGroupAccObj = (ListViewGroupAccessibleObject)listView.DefaultGroup.AccessibilityObject;
bool supportsGetChild = listView.IsHandleCreated && listView.GroupsDisplayed;
Assert.Equal(supportsGetChild ? 2 : -1, group1AccObj.GetChildCount());
Assert.Equal(supportsGetChild ? 3 : -1, group2AccObj.GetChildCount());
Assert.Equal(supportsGetChild ? 1 : -1, defaultGroupAccObj.GetChildCount());
Assert.Equal(createHandle, listView.IsHandleCreated);
}
public static IEnumerable<object[]> ListViewGroupAccessibleObject_VirtualMode_TestData()
{
foreach (View view in Enum.GetValues(typeof(View)))
{
// View.Tile is not supported by ListView in virtual mode
if (view == View.Tile)
{
continue;
}
foreach (bool showGroups in new[] { true, false })
{
foreach (bool createHandle in new[] { true, false })
{
yield return new object[] { view, showGroups, createHandle };
}
}
}
}
public static IEnumerable<object[]> ListViewGroupAccessibleObject_GetChild_Invoke_TestData()
{
foreach (bool virtualMode in new[] { true, false })
{
foreach (View view in Enum.GetValues(typeof(View)))
{
// View.Tile is not supported by ListView in virtual mode
if (virtualMode && view == View.Tile)
{
continue;
}
foreach (bool showGroups in new[] { true, false })
{
foreach (bool createHandle in new[] { true, false })
{
yield return new object[] { view, showGroups, createHandle, virtualMode };
}
}
}
}
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroupAccessibleObject_TestData))]
public void ListViewGroupAccessibleObject_GetChild_Invoke_ReturnsExpected(View view, bool showGroups, bool createHandle)
{
using ListView listView = new()
{
View = view,
ShowGroups = showGroups,
Size = new Size(200, 200)
};
listView.Columns.Add(new ColumnHeader());
ListViewGroupCollection groups = listView.Groups;
ListViewItemCollection items = listView.Items;
groups.Add(new ListViewGroup("Group1"));
groups.Add(new ListViewGroup("Group2"));
groups.Add(new ListViewGroup("Group3"));
items.Add(new ListViewItem(groups[0]));
items.Add(new ListViewItem());
items.Add(new ListViewItem(groups[1]));
items.Add(new ListViewItem(groups[1]));
if (createHandle)
{
Assert.NotEqual(IntPtr.Zero, listView.Handle);
}
ListViewGroupAccessibleObject group1AccObj = (ListViewGroupAccessibleObject)groups[0].AccessibilityObject;
ListViewGroupAccessibleObject group2AccObj = (ListViewGroupAccessibleObject)groups[1].AccessibilityObject;
ListViewGroupAccessibleObject group3AccObj = (ListViewGroupAccessibleObject)groups[2].AccessibilityObject;
ListViewGroupAccessibleObject defaultGroupAccObj = (ListViewGroupAccessibleObject)listView.DefaultGroup.AccessibilityObject;
bool supportsGetChild = listView.IsHandleCreated && listView.GroupsDisplayed;
Assert.Null(group1AccObj.GetChild(-1));
Assert.Null(group1AccObj.GetChild(1));
Assert.Equal(supportsGetChild ? items[0].AccessibilityObject : null, group1AccObj.GetChild(0));
Assert.Null(group2AccObj.GetChild(-1));
Assert.Null(group2AccObj.GetChild(2));
Assert.Equal(supportsGetChild ? items[2].AccessibilityObject : null, group2AccObj.GetChild(0));
Assert.Equal(supportsGetChild ? items[3].AccessibilityObject : null, group2AccObj.GetChild(1));
Assert.Null(group3AccObj.GetChild(-1));
Assert.Null(group3AccObj.GetChild(0));
Assert.Null(defaultGroupAccObj.GetChild(-1));
Assert.Null(defaultGroupAccObj.GetChild(1));
Assert.Equal(supportsGetChild ? items[1].AccessibilityObject : null, defaultGroupAccObj.GetChild(0));
Assert.Equal(createHandle, listView.IsHandleCreated);
}
public static IEnumerable<object[]> ListViewGroup_GroupAddedWithItem_AccessibleObject_TestData()
{
foreach (bool virtualMode in new[] { true, false })
{
foreach (View view in Enum.GetValues(typeof(View)))
{
// View.Tile is not supported by ListView in virtual mode
if (virtualMode && view == View.Tile)
{
continue;
}
foreach (bool showGroups in new[] { true, false })
{
foreach (bool createHandle in new[] { true, false })
{
yield return new object[] { view, showGroups, createHandle, virtualMode };
}
}
}
}
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroup_GroupAddedWithItem_AccessibleObject_TestData))]
public void ListViewGroup_GroupAddedWithItem_AccessibleObject_DoesntThrowException(View view, bool showGroups, bool createHandle, bool virtualMode)
{
using ListView listView = new()
{
View = view,
ShowGroups = showGroups,
VirtualListSize = 1,
VirtualMode = virtualMode
};
ListViewGroup listViewGroup = new("Test Group");
ListViewItem listViewItem = new("Test item", listViewGroup);
if (virtualMode)
{
listView.RetrieveVirtualItem += (s, e) =>
{
e.Item = e.ItemIndex switch
{
0 => listViewItem,
_ => throw new NotImplementedException()
};
};
listViewItem.SetItemIndex(listView, 0);
}
else
{
listView.Items.Add(listViewItem);
}
if (createHandle)
{
Assert.NotEqual(IntPtr.Zero, listView.Handle);
}
Assert.Null(listViewGroup.ListView);
Assert.NotNull(listViewGroup.AccessibilityObject);
Assert.Equal(createHandle, listView.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroupAccessibleObject_TestData))]
public void ListViewGroupAccessibleObject_ExpandCollapseState_ReturnExpected(View view, bool showGroups, bool createHandle)
{
using ListView listView = new ListView
{
View = view,
ShowGroups = showGroups,
};
ListViewGroup lvgroup1 = new()
{
Header = "CollapsibleGroup1",
CollapsedState = ListViewGroupCollapsedState.Expanded
};
listView.Groups.Add(lvgroup1);
listView.Items.Add(new ListViewItem("Item1", lvgroup1));
ListViewGroup lvgroup2 = new()
{
Header = "CollapsibleGroup2",
CollapsedState = ListViewGroupCollapsedState.Collapsed
};
listView.Groups.Add(lvgroup2);
listView.Items.Add(new ListViewItem("Item2", lvgroup2));
if (createHandle)
{
Assert.NotEqual(IntPtr.Zero, listView.Handle);
}
Assert.Equal(ExpandCollapseState.ExpandCollapseState_Expanded, lvgroup1.AccessibilityObject.ExpandCollapseState);
Assert.Equal(ExpandCollapseState.ExpandCollapseState_Collapsed, lvgroup2.AccessibilityObject.ExpandCollapseState);
Assert.Equal(ExpandCollapseState.ExpandCollapseState_Expanded, listView.DefaultGroup.AccessibilityObject.ExpandCollapseState);
Assert.Equal(createHandle, listView.IsHandleCreated);
}
[WinFormsFact]
public void ListViewGroupAccessibleObject_ExpandCollapseStateFromKeyboard_ReturnsExpected()
{
using ListView listView = new() { ShowGroups = true };
ListViewGroup listViewGroup = new()
{
Header = "CollapsibleGroup",
CollapsedState = ListViewGroupCollapsedState.Expanded
};
listView.Groups.Add(listViewGroup);
listView.Items.Add(new ListViewItem("Group Item 1", listViewGroup));
listView.Items.Add(new ListViewItem("Group Item 2", listViewGroup));
listView.CreateControl();
listViewGroup.Items[0].Selected = true;
listViewGroup.Items[0].Focused = true;
AccessibleObject accessibleObject = listView.SelectedItems[0].AccessibilityObject;
ListViewGroupAccessibleObject groupAccObj = (ListViewGroupAccessibleObject)accessibleObject.FragmentNavigate(NavigateDirection.NavigateDirection_Parent);
groupAccObj.SetFocus();
Assert.True(listView.IsHandleCreated);
Assert.NotEqual(IntPtr.Zero, listView.Handle);
KeyboardSimulator.KeyPress(listView, Keys.Up);
KeyboardSimulator.KeyPress(listView, Keys.Left);
Assert.Equal(ListViewGroupCollapsedState.Collapsed, listViewGroup.GetNativeCollapsedState());
Assert.Equal(ExpandCollapseState.ExpandCollapseState_Collapsed, listViewGroup.AccessibilityObject.ExpandCollapseState);
KeyboardSimulator.KeyPress(listView, Keys.Left);
// The second left key pressing should not change Collapsed state
Assert.Equal(ListViewGroupCollapsedState.Collapsed, listViewGroup.GetNativeCollapsedState());
Assert.Equal(ExpandCollapseState.ExpandCollapseState_Collapsed, listViewGroup.AccessibilityObject.ExpandCollapseState);
KeyboardSimulator.KeyPress(listView, Keys.Right);
Assert.Equal(ListViewGroupCollapsedState.Expanded, listViewGroup.GetNativeCollapsedState());
Assert.Equal(ExpandCollapseState.ExpandCollapseState_Expanded, listViewGroup.AccessibilityObject.ExpandCollapseState);
KeyboardSimulator.KeyPress(listView, Keys.Right);
// The second right key pressing should not change Expanded state
Assert.Equal(ListViewGroupCollapsedState.Expanded, listViewGroup.GetNativeCollapsedState());
Assert.Equal(ExpandCollapseState.ExpandCollapseState_Expanded, listViewGroup.AccessibilityObject.ExpandCollapseState);
}
[WinFormsTheory]
[InlineData(ListViewGroupCollapsedState.Collapsed)]
[InlineData(ListViewGroupCollapsedState.Expanded)]
public void ListViewGroupAccessibleObject_GroupCollapsedStateChanged_IsExpected_ForMultipleSelection(ListViewGroupCollapsedState firstGroupSate)
{
using ListView listView = new() { ShowGroups = true };
// This test checks the case of collapsing of the second group.
// The first group state might affect behavior, so check both states.
ListViewGroup group1 = new("Group 1") { CollapsedState = firstGroupSate };
ListViewGroup group2 = new("Group 2") { CollapsedState = ListViewGroupCollapsedState.Expanded };
ListViewGroup group3 = new("Group 3") { CollapsedState = ListViewGroupCollapsedState.Expanded };
listView.Groups.AddRange((ListViewGroup[])[group1, group2, group3]);
ListViewItem item1 = new("Item 1", group1);
ListViewItem item2 = new("Item 2", group2);
ListViewItem item3 = new("Item 2", group3);
listView.Items.AddRange((ListViewItem[])[item1, item2, item3]);
listView.CreateControl();
item1.Focused = true;
// Keep indices of groups, that GroupCollapsedStateChanged event was raised for.
// It will help to understand if the event was raised for a correct group and was raised at all.
List<int> eventGroupIndices = [];
listView.GroupCollapsedStateChanged += (_, e) => eventGroupIndices.Add(e.GroupIndex);
// Navigate to the second group
KeyboardSimulator.KeyPress(listView, Keys.Down);
if (firstGroupSate == ListViewGroupCollapsedState.Collapsed)
{
// This action is necessary to navigate to the second group correctly in this specific case.
KeyboardSimulator.KeyPress(listView, Keys.Up);
}
// Simulate multiple selection of several groups to test a specific case,
// described in https://github.com/dotnet/winforms/issues/6708
item1.Selected = true;
item2.Selected = true;
item3.Selected = true;
// Simulate the second group collapse action via keyboard.
KeyboardSimulator.KeyPress(listView, Keys.Left);
Assert.Equal(firstGroupSate, group1.GetNativeCollapsedState());
Assert.Equal(firstGroupSate, group1.CollapsedState);
Assert.Equal(ListViewGroupCollapsedState.Collapsed, group2.GetNativeCollapsedState());
Assert.Equal(ListViewGroupCollapsedState.Collapsed, group2.CollapsedState);
Assert.Equal(ListViewGroupCollapsedState.Expanded, group3.GetNativeCollapsedState());
Assert.Equal(ListViewGroupCollapsedState.Expanded, group3.CollapsedState);
// GroupCollapsedStateChanged event should be raised
// for the second group only in this specific case.
Assert.Single(eventGroupIndices);
Assert.Equal(1, eventGroupIndices[0]);
// Make sure that we really cheched multiple selection case and the items
// are still selected after keyboard navigation simulations.
Assert.Equal(3, listView.SelectedItems.Count);
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_FragmentNavigate_Sibling_ReturnsExpected_InvisibleGroups(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithEmptyGroups(view);
AccessibleObject accessibleObject = listView.AccessibilityObject;
AccessibleObject listViewGroupWithItems1 = listView.Groups[1].AccessibilityObject;
AccessibleObject listViewGroupWithItems2 = listView.Groups[2].AccessibilityObject;
Assert.Null(listViewGroupWithItems1.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Equal(listViewGroupWithItems2, listViewGroupWithItems1.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Equal(listViewGroupWithItems1, listViewGroupWithItems2.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(listViewGroupWithItems2.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_FragmentNavigate_ReturnsExpected_Sibling_InvisibleGroups_AfterAddingItems(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithEmptyGroups(view);
AccessibleObject accessibleObject = listView.AccessibilityObject;
Assert.Null(GetAccessibleObject(1).FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Equal(GetAccessibleObject(2), GetAccessibleObject(1).FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Equal(GetAccessibleObject(1), GetAccessibleObject(2).FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(GetAccessibleObject(2).FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
ListViewItem listViewItem1 = new();
ListViewItem listViewItem2 = new();
listView.Items.Add(listViewItem1);
listView.Items.Add(listViewItem2);
listView.Groups[0].Items.Add(listViewItem1);
listView.Groups[3].Items.Add(listViewItem2);
Assert.Null(GetAccessibleObject(0).FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Equal(GetAccessibleObject(1), GetAccessibleObject(0).FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Equal(GetAccessibleObject(0), GetAccessibleObject(1).FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Equal(GetAccessibleObject(2), GetAccessibleObject(1).FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Equal(GetAccessibleObject(1), GetAccessibleObject(2).FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Equal(GetAccessibleObject(3), GetAccessibleObject(2).FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Equal(GetAccessibleObject(2), GetAccessibleObject(3).FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(GetAccessibleObject(3).FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.True(listView.IsHandleCreated);
AccessibleObject GetAccessibleObject(int index) => listView.Groups[index].AccessibilityObject;
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_FragmentNavigate_Sibling_ReturnsExpected_InvisibleGroups_AfterRemovingItems(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithEmptyGroups(view);
AccessibleObject accessibleObject = listView.AccessibilityObject;
AccessibleObject listViewGroupWithItems1 = listView.Groups[1].AccessibilityObject;
AccessibleObject listViewGroupWithItems2 = listView.Groups[2].AccessibilityObject;
Assert.Null(listViewGroupWithItems1.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Equal(listViewGroupWithItems2, listViewGroupWithItems1.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.Equal(listViewGroupWithItems1, listViewGroupWithItems2.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(listViewGroupWithItems2.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
listView.Groups[2].Items.RemoveAt(0);
Assert.Equal(listView.DefaultGroup.AccessibilityObject, listViewGroupWithItems1.FragmentNavigate(NavigateDirection.NavigateDirection_PreviousSibling));
Assert.Null(listViewGroupWithItems1.FragmentNavigate(NavigateDirection.NavigateDirection_NextSibling));
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_FragmentNavigate_Child_ReturnsExpected_InvisibleItems(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithInvisibleItems(view);
AccessibleObject accessibleObject = listView.Groups[0].AccessibilityObject;
Assert.Equal(listView.Groups[0].Items[1].AccessibilityObject, accessibleObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Equal(listView.Groups[0].Items[2].AccessibilityObject, accessibleObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_FragmentNavigate_Child_ReturnsExpected_InvisibleItems_AfterAddingItems(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithInvisibleItems(view);
AccessibleObject accessibleObject = listView.Groups[0].AccessibilityObject;
Assert.Equal(listView.Groups[0].Items[1].AccessibilityObject, accessibleObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Equal(listView.Groups[0].Items[2].AccessibilityObject, accessibleObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
listView.Items.Add(listView.Groups[0].Items[0]);
listView.Items.Add(listView.Groups[0].Items[3]);
Assert.Equal(listView.Groups[0].Items[0].AccessibilityObject, accessibleObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Equal(listView.Groups[0].Items[3].AccessibilityObject, accessibleObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_FragmentNavigate_Child_ReturnsExpected_InvisibleItems_AfterRemovingItems(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithInvisibleItems(view);
AccessibleObject accessibleObject = listView.Groups[0].AccessibilityObject;
Assert.Equal(listView.Groups[0].Items[1].AccessibilityObject, accessibleObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Equal(listView.Groups[0].Items[2].AccessibilityObject, accessibleObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
listView.Items.RemoveAt(1);
Assert.Equal(listView.Groups[0].Items[1].AccessibilityObject, accessibleObject.FragmentNavigate(NavigateDirection.NavigateDirection_FirstChild));
Assert.Equal(listView.Groups[0].Items[1].AccessibilityObject, accessibleObject.FragmentNavigate(NavigateDirection.NavigateDirection_LastChild));
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_GetChildCount_ReturnsExpected_InvisibleItems(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithInvisibleItems(view);
AccessibleObject accessibleObject = listView.Groups[0].AccessibilityObject;
Assert.Equal(2, accessibleObject.GetChildCount());
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_GetChildCount_ReturnsExpected_InvisibleItems_AfterAddingItems(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithInvisibleItems(view);
AccessibleObject accessibleObject = listView.Groups[0].AccessibilityObject;
Assert.Equal(2, accessibleObject.GetChildCount());
listView.Items.Add(listView.Groups[0].Items[0]);
listView.Items.Add(listView.Groups[0].Items[3]);
Assert.Equal(4, accessibleObject.GetChildCount());
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_GetChildCount_ReturnsExpected_InvisibleItems_AfterRemovingItems(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithInvisibleItems(view);
AccessibleObject accessibleObject = listView.Groups[0].AccessibilityObject;
Assert.Equal(2, accessibleObject.GetChildCount());
listView.Items.RemoveAt(1);
Assert.Equal(1, accessibleObject.GetChildCount());
listView.Items.RemoveAt(0);
Assert.Equal(0, accessibleObject.GetChildCount());
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_GetChild_ReturnsExpected_InvisibleItems(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithInvisibleItems(view);
AccessibleObject accessibleObject = listView.Groups[0].AccessibilityObject;
Assert.Equal(listView.Groups[0].Items[1].AccessibilityObject, accessibleObject.GetChild(0));
Assert.Equal(listView.Groups[0].Items[2].AccessibilityObject, accessibleObject.GetChild(1));
Assert.Null(accessibleObject.GetChild(2));
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_GetChild_ReturnsExpected_InvisibleItems_AfterAddingItems(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithInvisibleItems(view);
AccessibleObject accessibleObject = listView.Groups[0].AccessibilityObject;
listView.Items.Add(listView.Groups[0].Items[0]);
listView.Items.Add(listView.Groups[0].Items[3]);
Assert.Equal(listView.Groups[0].Items[0].AccessibilityObject, accessibleObject.GetChild(0));
Assert.Equal(listView.Groups[0].Items[1].AccessibilityObject, accessibleObject.GetChild(1));
Assert.Equal(listView.Groups[0].Items[2].AccessibilityObject, accessibleObject.GetChild(2));
Assert.Equal(listView.Groups[0].Items[3].AccessibilityObject, accessibleObject.GetChild(3));
Assert.Null(accessibleObject.GetChild(4));
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_GetChild_ReturnsExpected_InvisibleItems_AfterRemovingItems(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewItemWithInvisibleItems(view);
AccessibleObject accessibleObject = listView.Groups[0].AccessibilityObject;
listView.Items.RemoveAt(1);
Assert.Equal(listView.Groups[0].Items[1].AccessibilityObject, accessibleObject.GetChild(0));
Assert.Null(accessibleObject.GetChild(1));
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroupAccessibleObject_TestData))]
public void ListViewGroupAccessibleObject_FragmentRoot_Returns_ListViewAccessibleObject(View view, bool showGroups, bool createHandle)
{
using ListView listView = new()
{
View = view,
ShowGroups = showGroups,
};
ListViewGroup listViewGroup = new();
listView.Groups.Add(listViewGroup);
if (createHandle)
{
listView.CreateControl();
}
Assert.Equal(listView.AccessibilityObject, listViewGroup.AccessibilityObject.FragmentRoot);
Assert.Equal(createHandle, listView.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroupAccessibleObject_TestData))]
public void ListViewGroupAccessibleObject_Bounds_ReturnsExpected(View view, bool showGroups, bool createHandle)
{
using ListView listView = GetListViewWithGroups(view, showGroups, createHandle, virtualMode: false);
ListView.ListViewAccessibleObject accessibleObject = listView.AccessibilityObject as ListView.ListViewAccessibleObject;
bool showBounds = listView.IsHandleCreated && listView.GroupsDisplayed;
Assert.Equal(showBounds, !listView.DefaultGroup.AccessibilityObject.Bounds.IsEmpty);
Assert.Equal(showBounds, !listView.Groups[0].AccessibilityObject.Bounds.IsEmpty);
Assert.Equal(createHandle, listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_Bounds_LocatedInsideListViewBounds(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = GetListViewWithGroups(view, showGroups: true, createHandle: true, virtualMode: false);
ListView.ListViewAccessibleObject accessibleObject = listView.AccessibilityObject as ListView.ListViewAccessibleObject;
Rectangle listViewBounds = listView.AccessibilityObject.Bounds;
Assert.True(listViewBounds.Contains(listView.DefaultGroup.AccessibilityObject.Bounds));
Assert.True(listViewBounds.Contains(listView.Groups[0].AccessibilityObject.Bounds));
Assert.True(listView.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(View.Details)]
[InlineData(View.LargeIcon)]
[InlineData(View.SmallIcon)]
[InlineData(View.Tile)]
public void ListViewGroupAccessibleObject_Bounds_ReturnEmptyRectangle_ForEmptyGroup(View view)
{
if (!Application.UseVisualStyles)
{
return;
}
using ListView listView = new() { View = view, ShowGroups = true };
listView.Columns.Add(new ColumnHeader());
listView.CreateControl();
listView.Groups.Add(new ListViewGroup());
listView.Items.Add(new ListViewItem());
Assert.False(listView.DefaultGroup.AccessibilityObject.Bounds.IsEmpty);
Assert.True(listView.Groups[0].AccessibilityObject.Bounds.IsEmpty);
Assert.True(listView.IsHandleCreated);
}
private ListView GetListViewItemWithEmptyGroups(View view)
{
ListView listView = new() { View = view };
listView.CreateControl();
ListViewGroup listViewGroupWithoutItems = new("Group without items");
ListViewGroup listViewGroupWithItems1 = new("Group with item 1");
ListViewGroup listViewGroupWithItems2 = new("Group with item 2");
ListViewGroup listViewGroupWithInvisibleItems = new("Group with invisible item");
listView.Groups.Add(listViewGroupWithoutItems);
listView.Groups.Add(listViewGroupWithItems1);
listView.Groups.Add(listViewGroupWithItems2);
listView.Groups.Add(listViewGroupWithInvisibleItems);
ListViewItem listViewItem1 = new();
ListViewItem listViewItem2 = new();
ListViewItem listViewItem3 = new();
listView.Items.Add(listViewItem1);
listView.Items.Add(listViewItem2);
listViewGroupWithItems1.Items.Add(listViewItem1);
listViewGroupWithItems2.Items.Add(listViewItem2);
listViewGroupWithInvisibleItems.Items.Add(listViewItem3);
return listView;
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroupAccessibleObject_TestData))]
public void ListViewGroupAccessibleObject_SetFocus_WorksCorrectly(View view, bool showGroups, bool createHandle)
{
using ListView listView = new()
{
View = view,
ShowGroups = showGroups,
Size = new Size(200, 200)
};
ListViewGroup listGroup1 = new("Group1");
ListViewGroup listGroup2 = new("Group2");
ListViewItem listItem1 = new(listGroup1);
ListViewItem listItem2 = new(listGroup1);
ListViewItem listItem3 = new();
listView.Groups.Add(listGroup1);
listView.Groups.Add(listGroup2);
listView.Items.Add(listItem1);
listView.Items.Add(listItem2);
listView.Items.Add(listItem3);
if (createHandle)
{
Assert.NotEqual(IntPtr.Zero, listView.Handle);
}
bool setFocusSupported = listView.IsHandleCreated && listView.GroupsDisplayed;
listGroup2.AccessibilityObject.SetFocus();
Assert.Null(listView.FocusedGroup);
listView.DefaultGroup.AccessibilityObject.SetFocus();
Assert.Equal(setFocusSupported ? listView.DefaultGroup : null, listView.FocusedGroup);
listGroup1.AccessibilityObject.SetFocus();
Assert.Equal(setFocusSupported ? listGroup1 : null, listView.FocusedGroup);
Assert.Equal(createHandle, listView.IsHandleCreated);
}
public static IEnumerable<object[]> ListViewGroupAccessibleObject_IsPatternSupported_TestData()
{
foreach (View view in Enum.GetValues(typeof(View)))
{
foreach (bool showGroups in new[] { true, false })
{
foreach (bool createHandle in new[] { true, false })
{
foreach (ListViewGroupCollapsedState listViewGroupCollapsedState in Enum.GetValues(typeof(ListViewGroupCollapsedState)))
{
yield return new object[] { view, showGroups, createHandle, listViewGroupCollapsedState };
}
}
}
}
}
[WinFormsTheory]
[MemberData(nameof(ListViewGroupAccessibleObject_IsPatternSupported_TestData))]
public void ListViewGroupAccessibleObject_IsPatternSupported_ReturnFalse_ForCollapsedStateDefault(View view, bool showGroups, bool createHandle, ListViewGroupCollapsedState listViewGroupCollapsedState)
{
using ListView listView = new()
{
View = view,
ShowGroups = showGroups,
};
ListViewGroup listGroup = new("Test")
{
CollapsedState = listViewGroupCollapsedState,
};
listView.Groups.Add(listGroup);
ListViewItem item = new("Test")
{
Group = listGroup
};
listView.Items.Add(item);
ListViewGroupAccessibleObject accessibleObject = new(listGroup, false);
if (createHandle)
{
listView.CreateControl();
}
bool expectedPatternSupported = listViewGroupCollapsedState != ListViewGroupCollapsedState.Default;
Assert.Equal(expectedPatternSupported, accessibleObject.IsPatternSupported(UIA_PATTERN_ID.UIA_ExpandCollapsePatternId));
Assert.Equal(createHandle, listView.IsHandleCreated);
}
[WinFormsFact]
public void ListViewGroupAccessibleObject_IsDisconnected_WhenListViewReleasesUiaProvider()
{
using ListView listView = new();
ListViewGroup group = new();
listView.Groups.Add(group);
EnforceAccessibleObjectCreation(group);
EnforceAccessibleObjectCreation(listView.DefaultGroup);
listView.ReleaseUiaProvider(listView.HWND);
Assert.Null(group.TestAccessor().Dynamic._accessibilityObject);
Assert.Null(listView.DefaultGroup.TestAccessor().Dynamic._accessibilityObject);
Assert.True(listView.IsHandleCreated);
}
[WinFormsFact]
public void ListViewGroupAccessibleObject_IsDisconnected_WhenGroupsAreCleared()
{
using ListView listView = new();
ListViewGroup group = new();
listView.Groups.Add(group);
EnforceAccessibleObjectCreation(group);
listView.Groups.Clear();
Assert.Null(group.TestAccessor().Dynamic._accessibilityObject);
Assert.False(listView.IsHandleCreated);
}
[WinFormsFact]
public void ListViewGroupAccessibleObject_IsDisconnected_WhenGroupIsRemoved()
{
using ListView listView = new();
ListViewGroup group = new();
listView.Groups.Add(group);
EnforceAccessibleObjectCreation(group);
listView.Groups.Remove(group);
Assert.Null(group.TestAccessor().Dynamic._accessibilityObject);
Assert.False(listView.IsHandleCreated);
}
private static void EnforceAccessibleObjectCreation(ListViewGroup group)
{
_ = group.AccessibilityObject;
Assert.NotNull(group.TestAccessor().Dynamic._accessibilityObject);
}
private ListView GetListViewItemWithInvisibleItems(View view)
{
ListView listView = new() { View = view };
listView.CreateControl();
ListViewGroup listViewGroup = new("Test group");
ListViewItem listViewInvisibleItem1 = new("Invisible item 1");
ListViewItem listViewVisibleItem1 = new("Visible item 1");
ListViewItem listViewInvisibleItem2 = new("Invisible item 1");
ListViewItem listViewVisibleItem2 = new("Visible item 1");
listView.Groups.Add(listViewGroup);
listView.Items.AddRange((ListViewItem[])[listViewVisibleItem1, listViewVisibleItem2]);
listViewGroup.Items.AddRange((ListViewItem[])
[
listViewInvisibleItem1, listViewVisibleItem1,
listViewVisibleItem2, listViewInvisibleItem2
]);
return listView;
}
private ListView GetListViewWithGroups(View view, bool showGroups, bool createHandle, bool virtualMode)
{
ListView listView = new()
{
View = view,
ShowGroups = showGroups,
VirtualListSize = 2,
VirtualMode = virtualMode,
Size = new Size(200, 200)
};
listView.Columns.Add(new ColumnHeader());
ListViewItem listViewItem1 = new("Test item 1");
if (!virtualMode)
{
ListViewGroup listViewGroup = new("Test Group");
listView.Groups.Add(listViewGroup);
listViewItem1.Group = listViewGroup;
}
ListViewItem listViewItem2 = new("Test item 2");
if (virtualMode)
{
listView.RetrieveVirtualItem += (s, e) =>
{
e.Item = e.ItemIndex switch
{
0 => listViewItem1,
1 => listViewItem2,
_ => throw new NotImplementedException()
};
};
listViewItem1.SetItemIndex(listView, 0);
listViewItem2.SetItemIndex(listView, 1);
}
else
{
listView.Items.Add(listViewItem1);
listView.Items.Add(listViewItem2);
}
if (createHandle)
{
Assert.NotEqual(IntPtr.Zero, listView.Handle);
}
return listView;
}
}
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