Files
Terminal.Gui/UnitTests/Views/ScrollViewTests.cs
2024-08-23 11:03:05 -06:00

1140 lines
36 KiB
C#

using System.Text;
using JetBrains.Annotations;
using Xunit.Abstractions;
namespace Terminal.Gui.ViewsTests;
public class ScrollViewTests (ITestOutputHelper output)
{
[Fact]
public void Adding_Views ()
{
var sv = new ScrollView { Width = 20, Height = 10 };
sv.SetContentSize (new (30, 20));
sv.Add (
new View { Width = 10, Height = 5 },
new View { X = 12, Y = 7, Width = 10, Height = 5 }
);
Assert.Equal (new (30, 20), sv.GetContentSize ());
Assert.Equal (2, sv.Subviews [0].Subviews.Count);
}
[Fact]
[AutoInitShutdown]
public void AutoHideScrollBars_False_ShowHorizontalScrollIndicator_ShowVerticalScrollIndicator ()
{
var sv = new ScrollView { Width = 10, Height = 10, AutoHideScrollBars = false };
sv.ShowHorizontalScrollIndicator = true;
sv.ShowVerticalScrollIndicator = true;
var top = new Toplevel ();
top.Add (sv);
Application.Begin (top);
Assert.Equal (new (0, 0, 10, 10), sv.Viewport);
Assert.False (sv.AutoHideScrollBars);
Assert.True (sv.ShowHorizontalScrollIndicator);
Assert.True (sv.ShowVerticalScrollIndicator);
sv.Draw ();
TestHelpers.AssertDriverContentsAre (
@"
◄├─────┤►
",
output
);
sv.ShowHorizontalScrollIndicator = false;
Assert.Equal (new (0, 0, 10, 10), sv.Viewport);
sv.ShowVerticalScrollIndicator = true;
Assert.Equal (new (0, 0, 10, 10), sv.Viewport);
Assert.False (sv.AutoHideScrollBars);
Assert.False (sv.ShowHorizontalScrollIndicator);
Assert.True (sv.ShowVerticalScrollIndicator);
sv.Draw ();
TestHelpers.AssertDriverContentsAre (
@"
",
output
);
sv.ShowHorizontalScrollIndicator = true;
sv.ShowVerticalScrollIndicator = false;
Assert.False (sv.AutoHideScrollBars);
Assert.True (sv.ShowHorizontalScrollIndicator);
Assert.False (sv.ShowVerticalScrollIndicator);
sv.Draw ();
TestHelpers.AssertDriverContentsAre (
@"
◄├──────┤►
",
output
);
sv.ShowHorizontalScrollIndicator = false;
sv.ShowVerticalScrollIndicator = false;
Assert.False (sv.AutoHideScrollBars);
Assert.False (sv.ShowHorizontalScrollIndicator);
Assert.False (sv.ShowVerticalScrollIndicator);
sv.Draw ();
TestHelpers.AssertDriverContentsAre (
@"
",
output
);
top.Dispose ();
}
[Fact]
[AutoInitShutdown]
public void AutoHideScrollBars_ShowHorizontalScrollIndicator_ShowVerticalScrollIndicator ()
{
var sv = new ScrollView { Width = 10, Height = 10 };
var top = new Toplevel ();
top.Add (sv);
Application.Begin (top);
Assert.True (sv.AutoHideScrollBars);
Assert.False (sv.ShowHorizontalScrollIndicator);
Assert.False (sv.ShowVerticalScrollIndicator);
TestHelpers.AssertDriverContentsWithFrameAre ("", output);
sv.AutoHideScrollBars = false;
sv.ShowHorizontalScrollIndicator = true;
sv.ShowVerticalScrollIndicator = true;
sv.LayoutSubviews ();
sv.Draw ();
TestHelpers.AssertDriverContentsWithFrameAre (
@"
◄├─────┤►
",
output
);
top.Dispose ();
}
// There are still issue with the lower right corner of the scroll view
[Fact]
[AutoInitShutdown]
public void Clear_Window_Inside_ScrollView ()
{
var topLabel = new Label { X = 15, Text = "At 15,0" };
var sv = new ScrollView
{
X = 3,
Y = 3,
Width = 10,
Height = 10,
KeepContentAlwaysInViewport = false
};
sv.SetContentSize (new (23, 23));
var bottomLabel = new Label { X = 15, Y = 15, Text = "At 15,15" };
var top = new Toplevel ();
top.Add (topLabel, sv, bottomLabel);
Application.Begin (top);
TestHelpers.AssertDriverContentsWithFrameAre (
@"
At 15,0
◄├┤░░░░░►
At 15,15",
output
);
Attribute [] attributes =
{
Colors.ColorSchemes ["TopLevel"].Normal,
Colors.ColorSchemes ["TopLevel"].Focus,
Colors.ColorSchemes ["Base"].Normal
};
TestHelpers.AssertDriverAttributesAre (
@"
00000000000000000000000
00000000000000000000000
00000000000000000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00011111111110000000000
00000000000000000000000
00000000000000000000000
00000000000000000000000",
null,
attributes
);
sv.Add (new Window { X = 3, Y = 3, Width = 20, Height = 20 });
Application.Refresh ();
TestHelpers.AssertDriverContentsWithFrameAre (
@"
At 15,0
┌─────░
│ ░
│ ░
│ ░
│ ░
│ ▼
◄├┤░░░░░►
At 15,15",
output
);
TestHelpers.AssertDriverAttributesAre (
@"
00000000000000000000000
00000000000000000000000
00000000000000000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00000022222210000000000
00000022222210000000000
00000022222210000000000
00000022222210000000000
00000022222210000000000
00000022222210000000000
00011111111110000000000
00000000000000000000000
00000000000000000000000
00000000000000000000000",
null,
attributes
);
sv.ContentOffset = new (20, 20);
Application.Refresh ();
TestHelpers.AssertDriverContentsWithFrameAre (
@"
At 15,0
│ ▲
│ ░
──┘ ░
◄░░░░├─┤►
At 15,15",
output
);
TestHelpers.AssertDriverAttributesAre (
@"
00000000000000000000000
00000000000000000000000
00000000000000000000000
00022200000010000000000
00022200000010000000000
00022200000010000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00000000000010000000000
00011111111110000000000
00000000000000000000000
00000000000000000000000
00000000000000000000000",
null,
attributes
);
top.Dispose ();
}
[Fact]
public void Constructors_Defaults ()
{
var sv = new ScrollView ();
Assert.True (sv.CanFocus);
Assert.Equal (new (0, 0, 0, 0), sv.Frame);
Assert.Equal (Rectangle.Empty, sv.Frame);
Assert.Equal (Point.Empty, sv.ContentOffset);
Assert.Equal (Size.Empty, sv.GetContentSize ());
Assert.True (sv.AutoHideScrollBars);
Assert.True (sv.KeepContentAlwaysInViewport);
sv = new () { X = 1, Y = 2, Width = 20, Height = 10 };
Assert.True (sv.CanFocus);
Assert.Equal (new (1, 2, 20, 10), sv.Frame);
Assert.Equal (Point.Empty, sv.ContentOffset);
Assert.Equal (sv.Viewport.Size, sv.GetContentSize ());
Assert.True (sv.AutoHideScrollBars);
Assert.True (sv.KeepContentAlwaysInViewport);
}
[Fact]
[SetupFakeDriver]
public void ContentBottomRightCorner_Draw ()
{
((FakeDriver)Application.Driver!).SetBufferSize (30, 30);
var top = new View { Width = 30, Height = 30, ColorScheme = new () { Normal = Attribute.Default } };
Size size = new (20, 10);
var sv = new ScrollView
{
X = 1,
Y = 1,
Width = 10,
Height = 5,
ColorScheme = new () { Normal = new (Color.Red, Color.Green) }
};
sv.SetContentSize (size);
string text = null;
for (var i = 0; i < size.Height; i++)
{
text += "*".Repeat (size.Width);
if (i < size.Height)
{
text += '\n';
}
}
var view = new View
{
ColorScheme = new () { Normal = new (Color.Blue, Color.Yellow) },
Width = Dim.Auto (DimAutoStyle.Text),
Height = Dim.Auto (DimAutoStyle.Text),
Text = text
};
sv.Add (view);
top.Add (sv);
top.BeginInit ();
top.EndInit ();
top.LayoutSubviews ();
top.Draw ();
View contentBottomRightCorner = sv.Subviews.First (v => v is ScrollBarView.ContentBottomRightCorner);
Assert.True (contentBottomRightCorner is ScrollBarView.ContentBottomRightCorner);
Assert.True (contentBottomRightCorner.Visible);
TestHelpers.AssertDriverContentsWithFrameAre (
@"
*********▲
*********┬
*********┴
*********▼
◄├──┤░░░► ",
output
);
Attribute [] attrs = { Attribute.Default, new (Color.Red, Color.Green), new (Color.Blue, Color.Yellow) };
TestHelpers.AssertDriverAttributesAre (
@"
000000000000
022222222210
022222222210
022222222210
022222222210
011111111110
000000000000",
null,
attrs
);
top.Dispose ();
}
[Fact]
[AutoInitShutdown]
public void
ContentOffset_ContentSize_AutoHideScrollBars_ShowHorizontalScrollIndicator_ShowVerticalScrollIndicator ()
{
var sv = new ScrollView
{
Width = 10, Height = 10
};
sv.SetContentSize (new (50, 50));
sv.ContentOffset = new (25, 25);
var top = new Toplevel ();
top.Add (sv);
Application.Begin (top);
Assert.Equal (new (-25, -25), sv.ContentOffset);
Assert.Equal (new (50, 50), sv.GetContentSize ());
Assert.True (sv.AutoHideScrollBars);
Assert.True (sv.ShowHorizontalScrollIndicator);
Assert.True (sv.ShowVerticalScrollIndicator);
TestHelpers.AssertDriverContentsWithFrameAre (
@"
◄░░░├─┤░►
",
output
);
top.Dispose ();
}
[Fact]
[AutoInitShutdown]
public void ContentSize_AutoHideScrollBars_ShowHorizontalScrollIndicator_ShowVerticalScrollIndicator ()
{
var sv = new ScrollView { Width = 10, Height = 10 };
sv.SetContentSize (new (50, 50));
var top = new Toplevel ();
top.Add (sv);
Application.Begin (top);
Assert.Equal (50, sv.GetContentSize ().Width);
Assert.Equal (50, sv.GetContentSize ().Height);
Assert.True (sv.AutoHideScrollBars);
Assert.True (sv.ShowHorizontalScrollIndicator);
Assert.True (sv.ShowVerticalScrollIndicator);
TestHelpers.AssertDriverContentsWithFrameAre (
@"
◄├┤░░░░░►
",
output
);
top.Dispose ();
}
[Fact]
[AutoInitShutdown]
public void DrawTextFormatter_Respects_The_Clip_Bounds ()
{
var rule = "0123456789";
Size size = new (40, 40);
var view = new View { Frame = new (Point.Empty, size) };
view.Add (
new Label
{
Width = Dim.Fill (),
Height = 1,
Text = rule.Repeat (size.Width / rule.Length)
}
);
view.Add (
new Label
{
Height = Dim.Fill (),
Width = 1,
Text = rule.Repeat (size.Height / rule.Length),
TextDirection = TextDirection.TopBottom_LeftRight
}
);
view.Add (new Label { X = 1, Y = 1, Text = "[ Press me! ]" });
var scrollView = new ScrollView
{
X = 1,
Y = 1,
Width = 15,
Height = 10,
ShowHorizontalScrollIndicator = true,
ShowVerticalScrollIndicator = true
};
scrollView.SetContentSize (size);
scrollView.Add (view);
var win = new Window { X = 1, Y = 1, Width = 20, Height = 14 };
win.Add (scrollView);
var top = new Toplevel ();
top.Add (win);
Application.Begin (top);
var expected = @"
┌──────────────────┐
│ │
│ 01234567890123▲ │
│ 1[ Press me! ]┬ │
│ 2 │ │
│ 3 ┴ │
│ 4 ░ │
│ 5 ░ │
│ 6 ░ │
│ 7 ░ │
│ 8 ▼ │
│ ◄├───┤░░░░░░░► │
│ │
└──────────────────┘
"
;
Rectangle pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.CursorRight));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 12345678901234▲ │
│ [ Press me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄├───┤░░░░░░░► │
│ │
└──────────────────┘
"
;
pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.CursorRight));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 23456789012345▲ │
│ Press me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄├────┤░░░░░░► │
│ │
└──────────────────┘
"
;
pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.CursorRight));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 34567890123456▲ │
│ Press me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄├────┤░░░░░░► │
│ │
└──────────────────┘
"
;
pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.CursorRight));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 45678901234567▲ │
│ ress me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄░├───┤░░░░░░► │
│ │
└──────────────────┘
"
;
pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.CursorRight));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 56789012345678▲ │
│ ess me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄░├────┤░░░░░► │
│ │
└──────────────────┘
"
;
pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.CursorRight));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 67890123456789▲ │
│ ss me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄░├────┤░░░░░► │
│ │
└──────────────────┘
"
;
pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.CursorRight));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 78901234567890▲ │
│ s me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄░░├───┤░░░░░► │
│ │
└──────────────────┘
";
pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.End.WithCtrl));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 67890123456789▲ │
│ ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄░░░░░░░├───┤► │
│ │
└──────────────────┘
";
pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.Home.WithCtrl));
Assert.True (scrollView.OnKeyDown (Key.CursorDown));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 1[ Press me! ]▲ │
│ 2 ┬ │
│ 3 │ │
│ 4 ┴ │
│ 5 ░ │
│ 6 ░ │
│ 7 ░ │
│ 8 ░ │
│ 9 ▼ │
│ ◄├───┤░░░░░░░► │
│ │
└──────────────────┘
";
pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.CursorDown));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 2 ▲ │
│ 3 ┬ │
│ 4 │ │
│ 5 ┴ │
│ 6 ░ │
│ 7 ░ │
│ 8 ░ │
│ 9 ░ │
│ 0 ▼ │
│ ◄├───┤░░░░░░░► │
│ │
└──────────────────┘
";
pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.CursorDown));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 3 ▲ │
│ 4 ┬ │
│ 5 │ │
│ 6 ┴ │
│ 7 ░ │
│ 8 ░ │
│ 9 ░ │
│ 0 ░ │
│ 1 ▼ │
│ ◄├───┤░░░░░░░► │
│ │
└──────────────────┘
";
pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new (1, 1, 21, 14), pos);
Assert.True (scrollView.OnKeyDown (Key.End));
top.Draw ();
expected = @"
┌──────────────────┐
│ │
│ 1 ▲ │
│ 2 ░ │
│ 3 ░ │
│ 4 ░ │
│ 5 ░ │
│ 6 ░ │
│ 7 ┬ │
│ 8 ┴ │
│ 9 ▼ │
│ ◄├───┤░░░░░░░► │
│ │
└──────────────────┘
";
TestHelpers.AssertDriverContentsAre (expected, output);
top.Dispose ();
}
// There still have an issue with lower right corner of the scroll view
[Fact]
[AutoInitShutdown]
public void Frame_And_Labels_Does_Not_Overspill_ScrollView ()
{
var sv = new ScrollView
{
X = 3,
Y = 3,
Width = 10,
Height = 10
};
sv.SetContentSize (new (50, 50));
for (var i = 0; i < 8; i++)
{
sv.Add (new CustomButton ("█", $"Button {i}", 20, 3) { Y = i * 3 });
}
var top = new Toplevel ();
top.Add (sv);
Application.Begin (top);
TestHelpers.AssertDriverContentsWithFrameAre (
@"
█████████▲
██████But┬
█████████┴
┌────────░
│ But░
└────────░
┌────────░
│ But░
└────────▼
◄├┤░░░░░► ",
output
);
sv.ContentOffset = new (5, 5);
sv.LayoutSubviews ();
Application.Refresh ();
TestHelpers.AssertDriverContentsWithFrameAre (
@"
─────────▲
─────────┬
Button 2│
─────────┴
─────────░
Button 3░
─────────░
─────────░
Button 4▼
◄├─┤░░░░► ",
output
);
top.Dispose ();
}
[Fact]
public void KeyBindings_Command ()
{
var sv = new ScrollView { Width = 20, Height = 10 };
sv.SetContentSize (new (40, 20));
sv.Add (
new View { Width = 20, Height = 5 },
new View { X = 22, Y = 7, Width = 10, Height = 5 }
);
sv.BeginInit ();
sv.EndInit ();
Assert.True (sv.KeepContentAlwaysInViewport);
Assert.True (sv.AutoHideScrollBars);
Assert.Equal (Point.Empty, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.CursorUp));
Assert.Equal (Point.Empty, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.CursorDown));
Assert.Equal (new (0, -1), sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.CursorUp));
Assert.Equal (Point.Empty, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.PageUp));
Assert.Equal (Point.Empty, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.PageDown));
Point point0xMinus10 = new (0, -10);
Assert.Equal (point0xMinus10, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.PageDown));
Assert.Equal (point0xMinus10, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.CursorDown));
Assert.Equal (point0xMinus10, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.V.WithAlt));
Assert.Equal (Point.Empty, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.V.WithCtrl));
Assert.Equal (point0xMinus10, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.CursorLeft));
Assert.Equal (point0xMinus10, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.CursorRight));
Assert.Equal (new (-1, -10), sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.CursorLeft));
Assert.Equal (point0xMinus10, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.PageUp.WithCtrl));
Assert.Equal (point0xMinus10, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.PageDown.WithCtrl));
Point pointMinus20xMinus10 = new (-20, -10);
Assert.Equal (pointMinus20xMinus10, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.CursorRight));
Assert.Equal (pointMinus20xMinus10, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.Home));
Point pointMinus20x0 = new (-20, 0);
Assert.Equal (pointMinus20x0, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.Home));
Assert.Equal (pointMinus20x0, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.End));
Assert.Equal (pointMinus20xMinus10, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.End));
Assert.Equal (pointMinus20xMinus10, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.Home.WithCtrl));
Assert.Equal (point0xMinus10, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.Home.WithCtrl));
Assert.Equal (point0xMinus10, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.End.WithCtrl));
Assert.Equal (pointMinus20xMinus10, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.End.WithCtrl));
Assert.Equal (pointMinus20xMinus10, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.Home));
Assert.Equal (pointMinus20x0, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.Home.WithCtrl));
Assert.Equal (Point.Empty, sv.ContentOffset);
sv.KeepContentAlwaysInViewport = false;
Assert.False (sv.KeepContentAlwaysInViewport);
Assert.True (sv.AutoHideScrollBars);
Assert.Equal (Point.Empty, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.CursorUp));
Assert.Equal (Point.Empty, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.CursorDown));
Assert.Equal (new (0, -1), sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.CursorUp));
Assert.Equal (Point.Empty, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.PageUp));
Assert.Equal (Point.Empty, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.PageDown));
Assert.Equal (point0xMinus10, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.PageDown));
Point point0xMinus19 = new (0, -19);
Assert.Equal (point0xMinus19, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.PageDown));
Assert.Equal (point0xMinus19, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.CursorDown));
Assert.Equal (point0xMinus19, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.V.WithAlt));
Assert.Equal (new (0, -9), sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.V.WithCtrl));
Assert.Equal (point0xMinus19, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.CursorLeft));
Assert.Equal (point0xMinus19, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.CursorRight));
Assert.Equal (new (-1, -19), sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.CursorLeft));
Assert.Equal (point0xMinus19, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.PageUp.WithCtrl));
Assert.Equal (point0xMinus19, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.PageDown.WithCtrl));
Assert.Equal (new (-20, -19), sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.PageDown.WithCtrl));
Point pointMinus39xMinus19 = new (-39, -19);
Assert.Equal (pointMinus39xMinus19, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.PageDown.WithCtrl));
Assert.Equal (pointMinus39xMinus19, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.CursorRight));
Assert.Equal (pointMinus39xMinus19, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.PageUp.WithCtrl));
var pointMinus19xMinus19 = new Point (-19, -19);
Assert.Equal (pointMinus19xMinus19, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.Home));
Assert.Equal (new (-19, 0), sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.Home));
Assert.Equal (new (-19, 0), sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.End));
Assert.Equal (pointMinus19xMinus19, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.End));
Assert.Equal (pointMinus19xMinus19, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.Home.WithCtrl));
Assert.Equal (point0xMinus19, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.Home.WithCtrl));
Assert.Equal (point0xMinus19, sv.ContentOffset);
Assert.True (sv.OnKeyDown (Key.End.WithCtrl));
Assert.Equal (pointMinus39xMinus19, sv.ContentOffset);
Assert.False (sv.OnKeyDown (Key.End.WithCtrl));
Assert.Equal (pointMinus39xMinus19, sv.ContentOffset);
}
[Fact]
[AutoInitShutdown]
public void Remove_Added_View_Is_Allowed ()
{
var sv = new ScrollView { Width = 20, Height = 20 };
sv.SetContentSize (new (100, 100));
sv.Add (
new View { Width = Dim.Fill (), Height = Dim.Fill (50), Id = "View1" },
new View { Y = 51, Width = Dim.Fill (), Height = Dim.Fill (), Id = "View2" }
);
var top = new Toplevel ();
top.Add (sv);
Application.Begin (top);
Assert.Equal (4, sv.Subviews.Count);
Assert.Equal (2, sv.Subviews [0].Subviews.Count);
sv.Remove (sv.Subviews [0].Subviews [1]);
Assert.Equal (4, sv.Subviews.Count);
Assert.Single (sv.Subviews [0].Subviews);
Assert.Equal ("View1", sv.Subviews [0].Subviews [0].Id);
top.Dispose ();
}
private class CustomButton : FrameView
{
private readonly Label labelFill;
private readonly Label labelText;
public CustomButton (string fill, string text, int width, int height)
{
Width = width;
Height = height;
labelFill = new () { Width = Dim.Fill (), Height = Dim.Fill (), Visible = false };
labelFill.LayoutComplete += (s, e) =>
{
var fillText = new StringBuilder ();
for (var i = 0; i < labelFill.Viewport.Height; i++)
{
if (i > 0)
{
fillText.AppendLine ("");
}
for (var j = 0; j < labelFill.Viewport.Width; j++)
{
fillText.Append (fill);
}
}
labelFill.Text = fillText.ToString ();
};
labelText = new () { X = Pos.Center (), Y = Pos.Center (), Text = text };
Add (labelFill, labelText);
CanFocus = true;
}
protected override void OnHasFocusChanged (bool newHasFocus, [CanBeNull] View previousFocusedView, [CanBeNull] View focusedVew)
{
if (newHasFocus)
{
Border.LineStyle = LineStyle.None;
Border.Thickness = new (0);
labelFill.Visible = true;
}
else
{
Border.LineStyle = LineStyle.Single;
Border.Thickness = new (1);
labelFill.Visible = false;
}
}
}
}