public async Task Button_Anchor_ResizeOnWindowSizeTallerAsync()
{
await RunTestAsync(async (form, button) =>
{
button.Anchor = AnchorStyles.Top | AnchorStyles.Bottom;
var originalFormSize = form.DisplayRectangle.Size;
var originalButtonPosition = button.DisplayRectangle;
var mouseDragHandleOnForm = new Point(form.DisplayRectangle.Left + form.DisplayRectangle.Width / 2, form.DisplayRectangle.Bottom);
await MoveMouseAsync(form, form.PointToScreen(mouseDragHandleOnForm));
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse
.LeftButtonDown()
.MoveMouseBy(0, form.DisplayRectangle.Height)
.LeftButtonUp());
Assert.True(form.DisplayRectangle.Height > originalFormSize.Height);
Assert.Equal(originalFormSize.Width, form.DisplayRectangle.Width);
Assert.Equal(originalButtonPosition.Location, button.DisplayRectangle.Location);
// Still anchored on bottom
Assert.Equal(originalFormSize.Height - originalButtonPosition.Bottom, form.DisplayRectangle.Height - button.DisplayRectangle.Bottom);
});
}
public async Task Button_Mouse_Press_With_Drag_Off_Button_And_Back_Does_Cause_Button_ClickAsync()
{
await RunControlPairTestAsync <Button, Button>(async (form, controls) =>
{
(Button control1, Button control2) = controls;
int control1ClickCount = 0;
int control2ClickCount = 0;
control1.Click += (sender, e) => control1ClickCount++;
control2.Click += (sender, e) => control2ClickCount++;
await MoveMouseToControlAsync(control1);
Rectangle rect = control2.DisplayRectangle;
Point centerOfRect = GetCenter(rect);
Point centerOnScreen = control2.PointToScreen(centerOfRect);
Rectangle rect1 = control1.DisplayRectangle;
Point centerOfRect1 = new Point(rect1.Left, rect1.Top) + new Size(rect1.Width / 2, rect1.Height / 2);
Point centerOnScreen1 = control1.PointToScreen(centerOfRect1);
int horizontalResolution = User32.GetSystemMetrics(User32.SystemMetric.SM_CXSCREEN);
int verticalResolution = User32.GetSystemMetrics(User32.SystemMetric.SM_CYSCREEN);
var virtualPoint = new Point((int)Math.Round(65535.0 / horizontalResolution *centerOnScreen.X), (int)Math.Round(65535.0 / verticalResolution *centerOnScreen.Y));
int horizontalResolution1 = User32.GetSystemMetrics(User32.SystemMetric.SM_CXSCREEN);
int verticalResolution1 = User32.GetSystemMetrics(User32.SystemMetric.SM_CYSCREEN);
var virtualPoint1 = new Point((int)Math.Round(65535.0 / horizontalResolution1 *centerOnScreen1.X), (int)Math.Round(65535.0 / verticalResolution1 *centerOnScreen1.Y));
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse
.LeftButtonDown()
.MoveMouseTo(virtualPoint.X, virtualPoint.Y)
.MoveMouseTo(virtualPoint1.X, virtualPoint1.Y)
.LeftButtonUp());
Assert.Equal(1, control1ClickCount);
Assert.Equal(0, control2ClickCount);
});
}
public async Task Button_DialogResult_ClickDefaultButtonToCloseFormAsync(DialogResult dialogResult)
{
await RunTestAsync(async (form, button) =>
{
Assert.Equal(DialogResult.None, button.DialogResult);
button.DialogResult = dialogResult;
await MoveMouseToControlAsync(button);
Assert.Equal(CloseReason.None, form.CloseReason);
Assert.Equal(DialogResult.None, form.DialogResult);
Assert.True(form.Visible);
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse.LeftButtonClick());
Assert.Equal(CloseReason.None, form.CloseReason);
Assert.Equal(dialogResult, form.DialogResult);
// The window will only still be visible for DialogResult.None
Assert.Equal(dialogResult == DialogResult.None, form.Visible);
});
}
public async Task DragDrop_QueryDefaultCursors_Async()
{
await RunFormWithoutControlAsync(() => new DragDropForm(TestOutputHelper), async (form) =>
{
await MoveMouseToControlAsync(form.ListDragSource);
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse.LeftButtonDown());
var targetMousePosition = ToVirtualPoint(form.ListDragTarget.PointToScreen(new Point(20, 20)));
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse
.LeftButtonDown()
.Sleep(100)
.MoveMouseTo(targetMousePosition.X - 40, targetMousePosition.Y)
.Sleep(DragDropDelayMS)
.MoveMouseTo(targetMousePosition.X, targetMousePosition.Y)
.Sleep(DragDropDelayMS) // slight delay so drag&drop triggered
.MoveMouseTo(targetMousePosition.X + 2, targetMousePosition.Y + 2)
.Sleep(DragDropDelayMS) // slight delay so drag&drop triggered
.MoveMouseTo(targetMousePosition.X + 4, targetMousePosition.Y + 4)
.Sleep(DragDropDelayMS)
.LeftButtonUp()
.Sleep(DragDropDelayMS));
Assert.Equal(1, form.ListDragTarget.Items.Count);
});
}
public async Task ListView_Click_On_Second_Column_Does_Not_Alter_CheckBoxesAsync()
{
await RunTestAsync(async (form, listView) =>
{
InitializeItems(listView, View.Details, virtualModeEnabled: false, checkBoxesEnabled: true);
foreach (ListViewItem item in listView.Items)
{
Assert.Equal(0, item.StateImageIndex);
Assert.False(item.Selected);
}
Point listViewCenter = GetCenter(listView.RectangleToScreen(listView.Items[0].SubItems[1].Bounds));
await MoveMouseAsync(form, listViewCenter);
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Keyboard.KeyDown(VirtualKeyCode.SHIFT)
.Mouse.LeftButtonClick());
listViewCenter = GetCenter(listView.RectangleToScreen(listView.Items[2].SubItems[1].Bounds));
await MoveMouseAsync(form, listViewCenter);
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse.LeftButtonClick()
.Keyboard.KeyUp(VirtualKeyCode.SHIFT));
foreach (ListViewItem item in listView.Items)
{
Assert.Equal(0, item.StateImageIndex);
Assert.True(item.Selected);
}
});
}
public async Task Form_SnapsRightAsync(FormWindowState windowState)
{
if (!OsVersion.IsWindows11_OrGreater)
{
return;
}
await RunEmptyFormTestAsync(async form =>
{
form.Location = new Point(20, 21);
form.Size = new Size(300, 310);
form.WindowState = windowState;
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Keyboard.ModifiedKeyStroke(VirtualKeyCode.LWIN, VirtualKeyCode.VK_Z));
// inputSimulator.Sleep appears wildly inconsistent with snap panel timing. Task.Delay does not
await Task.Delay(SnapLayoutDelayMS);
// Snap right
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.RIGHT)
.KeyPress(VirtualKeyCode.RIGHT)
.KeyPress(VirtualKeyCode.RETURN));
await Task.Delay(SnapLayoutDelayMS);
// At this point, Windows displays a panel containing all running applications so the
// user can select one to dock next to our form. It also takes the keyboard focus away.
// If left in this state, subsequently run tests will fail since keyboard focus is not
// given to any newly launched window until this panel is dismissed.
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.ESCAPE));
await Task.Delay(SnapLayoutDelayMS);
var screenWorkingArea = Screen.FromControl(form).WorkingArea;
int screenMiddleX = screenWorkingArea.X + (screenWorkingArea.Width / 2);
int borderSize = (form.Width - form.ClientRectangle.Width) / 2;
Assert.True(form.Left <= screenMiddleX);
Assert.True(form.Left >= screenMiddleX - borderSize);
Assert.True(form.Top <= screenWorkingArea.Y);
Assert.True(form.Top >= screenWorkingArea.Y - borderSize);
Assert.True(form.Height >= screenWorkingArea.Height);
Assert.True(form.Height <= screenWorkingArea.Height + (borderSize * 2));
Assert.True(form.Width >= screenWorkingArea.Width / 2);
Assert.True(form.Width <= (screenWorkingArea.Width / 2) + (borderSize * 2));
});
}
public async Task Button_CancelButton_EscapeClicksCancelButtonAsync()
{
await RunTestAsync(async (form, button) =>
{
form.CancelButton = button;
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.ESCAPE));
Assert.Equal(DialogResult.Cancel, form.DialogResult);
Assert.False(form.Visible);
});
}
public async Task ListView_CheckBox_DoubleClick_WorksExpectedAsync(bool virtualModeEnabled, bool checkBoxesEnabled, bool expected)
{
await RunTestAsync(async (form, listView) =>
{
InitializeItems(listView, View.Details, virtualModeEnabled, checkBoxesEnabled);
Point itemCenter = GetCenter(listView.RectangleToScreen(listView.Items[0].Bounds));
await MoveMouseAsync(form, itemCenter);
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse.LeftButtonDoubleClick());
Assert.Equal(listView.Items[0].Checked, expected);
});
}
public async Task PrintPreviewDialog_Hotkey_Ctrl_5Async()
{
await RunTestAsync(async printPreviewDialog =>
{
await InputSimulator.SendAsync(
printPreviewDialog,
inputSimulator => inputSimulator.Keyboard.ModifiedKeyStroke(VirtualKeyCode.CONTROL, VirtualKeyCode.VK_5));
// Allow a little time to process the keystroke.
await Task.Delay(DelayMS);
Assert.Equal(2, printPreviewDialog.PrintPreviewControl.Rows);
Assert.Equal(3, printPreviewDialog.PrintPreviewControl.Columns);
});
}
public async Task Button_DialogResult_EscapeDoesNotClickFocusedButtonAsync()
{
await RunTestAsync(async (form, button) =>
{
button.DialogResult = DialogResult.OK;
Assert.True(button.Focus());
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.ESCAPE));
Assert.Equal(DialogResult.None, form.DialogResult);
Assert.True(form.Visible);
});
}
public async Task Button_DialogResult_SpaceToClickFocusedButtonAsync()
{
await RunTestAsync(async (form, button) =>
{
button.DialogResult = DialogResult.OK;
Assert.True(button.Focus());
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.SPACE));
Assert.Equal(DialogResult.OK, form.DialogResult);
Assert.False(form.Visible);
});
}
public async Task Button_Hotkey_DoesNotFire_OnClickAsync()
{
await RunTestAsync(async (form, button) =>
{
bool wasClicked = false;
button.Text = "&Click";
button.Click += (x, y) => wasClicked = true;
// Send a random ALT+L (the same as SendKeys.SendWait("%l"))
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Keyboard.ModifiedKeyStroke(VirtualKeyCode.LMENU, VirtualKeyCode.VK_L));
Assert.False(wasClicked);
});
}
public async Task Button_Hotkey_Fires_OnClickAsync()
{
await RunTestAsync(async (form, button) =>
{
Assert.True(InputLanguage.CurrentInputLanguage.LayoutName == "US", "Please, switch to the US input language");
bool wasClicked = false;
button.Text = "&Click";
button.Click += (x, y) => wasClicked = true;
// Send the shortcut ALT+C (the same as SendKeys.SendWait("%C"))
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Keyboard.ModifiedKeyStroke(VirtualKeyCode.LMENU, VirtualKeyCode.VK_C));
Assert.True(wasClicked);
});
}
public async Task Button_Press_Enter_Fires_OnClickAsync()
{
await RunTestAsync(async (form, button) =>
{
bool wasClicked = false;
button.Text = "&Click";
button.Click += (x, y) => wasClicked = true;
await MoveMouseToControlAsync(button);
// Send the Enter press
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.RETURN));
Assert.True(wasClicked);
});
}
public async Task Button_AchorNone_NoResizeOnWindowSizeWiderAsync()
{
await RunTestAsync(async (form, button) =>
{
var originalFormSize = form.DisplayRectangle.Size;
var originalButtonPosition = button.DisplayRectangle;
var mouseDragHandleOnForm = new Point(form.DisplayRectangle.Right, form.DisplayRectangle.Top + form.DisplayRectangle.Height / 2);
await MoveMouseAsync(form, form.PointToScreen(mouseDragHandleOnForm));
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse
.LeftButtonDown()
.MoveMouseBy(form.DisplayRectangle.Width, 0)
.LeftButtonUp());
Assert.True(form.DisplayRectangle.Width > originalFormSize.Width);
Assert.Equal(originalFormSize.Height, form.DisplayRectangle.Height);
Assert.Equal(originalButtonPosition, button.DisplayRectangle);
});
}
public async Task DataGridView_ToolTip_DoesNot_ThrowExceptionAsync()
{
await RunTestAsync(async (form, dataGridView) =>
{
using DataTable dataTable = new();
dataTable.Columns.Add(columnName: "name");
dataTable.Rows.Add(values: "name1");
dataGridView.ShowCellToolTips = true;
dataGridView.DataSource = dataTable;
Point point = dataGridView.GetCellDisplayRectangle(columnIndex: 0, rowIndex: 0, cutOverflow: false).Location;
// Move mouse cursor over any cell of the first row to trigger a tooltip.
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse.MoveMouseTo(point.X, point.Y));
// Close the form to verify no exceptions thrown while showing the tooltip.
// Regression test for https://github.com/dotnet/winforms/issues/5496
form.Close();
dataTable.AcceptChanges();
});
}
public async Task Button_Mouse_Press_Without_Moving_Causes_Button_ClickAsync()
{
await RunControlPairTestAsync <Button, Button>(async (form, controls) =>
{
(Button control1, Button control2) = controls;
int control1ClickCount = 0;
int control2ClickCount = 0;
control1.Click += (sender, e) => control1ClickCount++;
control2.Click += (sender, e) => control2ClickCount++;
await MoveMouseToControlAsync(control1);
await InputSimulator.SendAsync(form, inputSimulator => inputSimulator.Mouse.LeftButtonDown().LeftButtonUp());
Assert.Equal(1, control1ClickCount);
Assert.Equal(0, control2ClickCount);
await MoveMouseToControlAsync(control2);
await InputSimulator.SendAsync(form, inputSimulator => inputSimulator.Mouse.LeftButtonDown().LeftButtonUp());
Assert.Equal(1, control1ClickCount);
Assert.Equal(1, control2ClickCount);
});
}
public async Task DesignBehaviorsTests_can_DragDrop_ToolboxItem()
{
// Regression test for https://github.com/dotnet/winforms/issues/6919, and it verifies that we can successfully
// drag and drop a toolbox item from a toolbox on to a designer surface.
Application.ThreadException += (s, e) =>
{
// This will preserve the full stack, which otherwise gets replaced
throw new Exception(e.Exception.Message, e.Exception);
};
await RunSingleControlTestAsync <TreeView>(async (form, treeView) =>
{
// This will indicate when the designer surface has loaded
SemaphoreSlim loadSignal = new(0);
// This will indicate when the drag and drop operation has completed
SemaphoreSlim dndSignal = new(0);
form.Size = new(600, 550);
treeView.Dock = DockStyle.Left;
treeView.Width = 100;
// Create a toolbox item and assign it to the node
// When we drag the node to the design surface, this will go through the toolbox service API
ToolboxItem toolboxItem = new()
{
TypeName = typeof(SampleControl).FullName,
DisplayName = typeof(SampleControl).Name,
AssemblyName = typeof(SampleControl).Assembly.GetName()
};
TreeNode?node = treeView.Nodes.Add("root");
node.Tag = toolboxItem;
// Create the designer surface and all required plumbing
SampleDesignerLoader designerLoader = new();
ServiceContainer serviceContainer = new();
DesignSurface designSurface = new(serviceContainer);
var designerHost = (IDesignerHost)designSurface.GetService(typeof(IDesignerHost));
serviceContainer.RemoveService(typeof(IToolboxService), false);
serviceContainer.AddService(typeof(IToolboxService), new SampleToolboxService(designerHost));
if (designerHost.GetService(typeof(IComponentChangeService)) is IComponentChangeService componentChangeService)
{
componentChangeService.ComponentAdded += (s, e) =>
{
if (e.Component is Form form)
{
form.Text = @"RootForm";
form.Size = new Size(400, 400);
}
else
{
((Control)e.Component !).Size = new Size(50, 50);
}
};
}
designSurface.Loaded += (s, e) =>
{
Control rootView = (Control)designSurface.View;
rootView.Dock = DockStyle.Fill;
form.Controls.Add(rootView);
rootView.BringToFront();
// Indicate that we have finished loading the designer surface
loadSignal.Release();
};
treeView.ItemDrag += treeView_ItemDrag;
designSurface.BeginLoad(designerLoader);
// Wait for the designer surface to load
await loadSignal.WaitAsync(millisecondsTimeout: 3_000);
// Initiate the drag and drop and wait for the signal that it finished
var dndStartCoordinates = treeView.PointToScreen(node.Bounds.Location);
await InitiateDrangDropAsync(form, dndStartCoordinates, (Control)designSurface.View);
await dndSignal.WaitAsync(millisecondsTimeout: 3_000);
return;
void treeView_ItemDrag(object?sender, ItemDragEventArgs e)
{
if (designerHost?.GetService(typeof(IToolboxService)) is not IToolboxService toolboxService ||
e.Item is not TreeNode node ||
node.Tag is not ToolboxItem toolboxItem)
{
return;
}
var dataObject = toolboxService.SerializeToolboxItem(toolboxItem) as DataObject;
var effects = node.TreeView.DoDragDrop(dataObject !, DragDropEffects.Copy);
}
async Task InitiateDrangDropAsync(Form form, Point startCoordinates, Control rootView)
{
var virtualPointStart = ToVirtualPoint(startCoordinates);
startCoordinates.Offset(110, 50);
var virtualPointEnd = ToVirtualPoint(startCoordinates);
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse.MoveMouseTo(virtualPointStart.X + 6, virtualPointStart.Y + 6)
.LeftButtonDown()
.Sleep(100)
.MoveMouseTo(virtualPointEnd.X, virtualPointEnd.Y)
// The d'n'd is very finicky, and if we just call LeftButtonUp()
// it won't work... It'd for some reason think we'd left the control instead.
//
// To work around it - give it a full second to react and then
// simulate a mouse click.
.Sleep(100)
.LeftButtonClick());
dndSignal.Release();
}
});
}
public async Task ListView_Group_NavigateKeyboard_SucceedsAsync()
{
await RunTestAsync(async (form, listView) =>
{
var group = new ListViewGroup($"Group 1", HorizontalAlignment.Left)
{
CollapsedState = ListViewGroupCollapsedState.Expanded
};
var item1 = new ListViewItem("g1-1")
{
Group = group
};
var item2 = new ListViewItem("g1-2")
{
Group = group
};
var item3 = new ListViewItem("g1-3")
{
Group = group
};
listView.Groups.Add(group);
listView.Items.AddRange(new[] { item1, item2, item3 });
listView.Focus();
bool collapsedStateChangedFired = false;
listView.GroupCollapsedStateChanged += (sender, e) => collapsedStateChangedFired = true;
item1.Selected = true;
await InputSimulator.SendAsync(form, inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.RIGHT));
Assert.False(item1.Selected);
Assert.True(item2.Selected);
Assert.False(item3.Selected);
Assert.False(collapsedStateChangedFired);
await InputSimulator.SendAsync(form, inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.RIGHT));
Assert.False(item1.Selected);
Assert.False(item2.Selected);
Assert.True(item3.Selected);
Assert.False(collapsedStateChangedFired);
await InputSimulator.SendAsync(form, inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.RIGHT));
Assert.False(item1.Selected);
Assert.False(item2.Selected);
Assert.True(item3.Selected);
Assert.False(collapsedStateChangedFired);
await InputSimulator.SendAsync(form, inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.LEFT).KeyPress(VirtualKeyCode.LEFT));
Assert.True(item1.Selected);
Assert.False(item2.Selected);
Assert.False(item3.Selected);
Assert.False(collapsedStateChangedFired);
await InputSimulator.SendAsync(form, inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.LEFT));
Assert.True(item1.Selected);
Assert.False(item2.Selected);
Assert.False(item3.Selected);
Assert.False(collapsedStateChangedFired);
// Selects header, which selects all items in group
await InputSimulator.SendAsync(form, inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.UP));
Assert.True(item2.Selected);
Assert.True(item2.Selected);
Assert.True(item2.Selected);
Assert.False(collapsedStateChangedFired);
// Collapse group
await InputSimulator.SendAsync(form, inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.LEFT).KeyPress(VirtualKeyCode.UP).KeyPress(VirtualKeyCode.LEFT));
Assert.Equal(ListViewGroupCollapsedState.Collapsed, group.CollapsedState);
Assert.True(collapsedStateChangedFired);
// Expand group
collapsedStateChangedFired = false;
await InputSimulator.SendAsync(form, inputSimulator => inputSimulator.Keyboard.KeyPress(VirtualKeyCode.UP).KeyPress(VirtualKeyCode.RIGHT));
Assert.True(collapsedStateChangedFired);
Assert.Equal(ListViewGroupCollapsedState.Expanded, group.CollapsedState);
});
}
public async Task RichTextBox_Click_On_Friendly_Name_Link_Provides_Hidden_Link_SpanAsync()
{
await RunTestAsync(async (form, richTextBox) =>
{
richTextBox.Rtf = @"{\rtf1\ansi\ansicpg1252\deff0\nouicompat\deflang4105{\fonttbl{\f0\fnil\fcharset0 Calibri;}}
{\*\generator Riched20 10.0.17134}\viewkind4\uc1
{\field{\*\fldinst { HYPERLINK ""http://www.google.com"" }}{\fldrslt {Click link #1}}}
\pard\sa200\sl276\slmult1\f0\fs22\lang9 for more information.\par
{\field{\*\fldinst { HYPERLINK ""http://www.google.com"" }}{\fldrslt {Click link #2}}}
\pard\sa200\sl276\slmult1\f0\fs22\lang9 for more information.\par
{\field{\*\fldinst { HYPERLINK ""http://www.google.com"" }}{\fldrslt {Click link #3}}}
\pard\sa200\sl276\slmult1\f0\fs22\lang9 for more information.\par
}";
Point previousPosition = new();
BOOL setOldCursorPos = GetPhysicalCursorPos(ref previousPosition);
LinkClickedEventArgs?result = null;
LinkClickedEventHandler handler = (sender, e) => result = e;
richTextBox.LinkClicked += handler;
try
{
Point pt = richTextBox.PointToScreen(richTextBox.GetPositionFromCharIndex(richTextBox.Text.IndexOf("Click link #2")));
// Adjust point a bit to make sure we are clicking inside the character cell instead of on its edge.
pt.X += 2;
pt.Y += 2;
await MoveMouseAsync(form, pt);
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse.LeftButtonClick());
if (setOldCursorPos.IsTrue())
{
await MoveMouseAsync(form, previousPosition);
}
// Let the event queue drain after clicking, before moving the cursor back to the old position.
Application.DoEvents();
}
finally
{
richTextBox.LinkClicked -= handler;
if (setOldCursorPos.IsTrue())
{
// Move cursor to the old position.
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse.MoveMouseTo(previousPosition.X, previousPosition.Y));
Application.DoEvents();
}
}
Assert.NotNull(result);
Assert.True(result !.LinkStart + result.LinkLength <= richTextBox.Text.Length);
Assert.Equal(result.LinkText, richTextBox.Text.Substring(result.LinkStart, result.LinkLength));
// This assumes the input span is the hidden text of a "friendly name" URL,
// which is what the native control will pass to the LinkClicked event instead
// of the actual span of the clicked display text.
var displayText = GetTextFromRange(richTextBox, result.LinkStart, result.LinkLength, range =>
{
// Move the cursor to the end of the hidden area we are currently located in.
range.EndOf(TomHidden, 0);
// Extend the cursor to the end of the display text of the link.
range.EndOf(TomLink, 1);
});
Assert.Equal("Click link #2", displayText);
});
}
public async Task RichTextBox_Click_On_Custom_Link_Preceeded_By_Hidden_Text_Provides_Displayed_Link_SpanAsync()
{
await RunTestAsync(async (form, richTextBox) =>
{
richTextBox.Rtf = @"{\rtf1\ansi\ansicpg1252\deff0\nouicompat\deflang4105{\fonttbl{\f0\fnil\fcharset0 Calibri;}}
{\*\generator Riched20 10.0.17134}\viewkind4\uc1\pard\sa200\sl276\slmult1\f0\fs22\lang9
This is hidden text preceeding a \v #link1#\v0 custom link.\par
This is hidden text preceeding a \v #link2#\v0 custom link.\par
This is hidden text preceeding a \v #link3#\v0 custom link.\par
}";
MakeLink(richTextBox, "#link1#custom link");
MakeLink(richTextBox, "#link2#custom link");
MakeLink(richTextBox, "#link3#custom link");
Point previousPosition = new();
BOOL setOldCursorPos = GetPhysicalCursorPos(ref previousPosition);
LinkClickedEventArgs?result = null;
LinkClickedEventHandler handler = (sender, e) => result = e;
richTextBox.LinkClicked += handler;
try
{
Point pt = richTextBox.PointToScreen(richTextBox.GetPositionFromCharIndex(richTextBox.Text.IndexOf("#link2#custom link")));
// Adjust point a bit to make sure we are clicking inside the character cell instead of on its edge.
pt.X += 2;
pt.Y += 2;
await MoveMouseAsync(form, pt);
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse.LeftButtonClick());
if (setOldCursorPos.IsTrue())
{
await MoveMouseAsync(form, previousPosition);
}
// Let the event queue drain after clicking, before moving the cursor back to the old position.
Application.DoEvents();
}
finally
{
richTextBox.LinkClicked -= handler;
if (setOldCursorPos.IsTrue())
{
// Move cursor to the old position.
await InputSimulator.SendAsync(
form,
inputSimulator => inputSimulator.Mouse.MoveMouseTo(previousPosition.X, previousPosition.Y));
Application.DoEvents();
}
}
Assert.NotNull(result);
Assert.True(result !.LinkStart + result.LinkLength <= richTextBox.Text.Length);
Assert.Equal(result.LinkText, richTextBox.Text.Substring(result.LinkStart, result.LinkLength));
// This assumes the input span is a custom link preceeded by hidden text.
var hiddenText = GetTextFromRange(richTextBox, result.LinkStart, result.LinkLength, range =>
{
// Move the cursor to the start of the link we are currently located in.
range.StartOf(TomLink, 0);
// Extend the cursor to the start of the hidden area preceeding the link.
range.StartOf(TomHidden, 1);
});
Assert.Equal("#link2#", hiddenText);
});
}