mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2025-12-28 00:38:00 +01:00
455 lines
14 KiB
C#
455 lines
14 KiB
C#
using Xunit.Abstractions;
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using static Unix.Terminal.Delegates;
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namespace Terminal.Gui.ViewsTests;
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public class ScrollBarTests
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{
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public ScrollBarTests (ITestOutputHelper output) { _output = output; }
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private readonly ITestOutputHelper _output;
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[Fact]
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[AutoInitShutdown]
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public void AutoHideScrollBar_CheckScrollBarVisibility ()
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{
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var scrollBar = new ScrollBar { Width = 2, Height = Dim.Fill (), Size = 30 };
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View scrollBarSuperView = ScrollBarSuperView ();
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scrollBarSuperView.Add (scrollBar);
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Application.Begin ((scrollBarSuperView.SuperView as Toplevel)!);
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Assert.Equal (Orientation.Vertical, scrollBar.Orientation);
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//Assert.True (scrollBar.ShowScrollIndicator);
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Assert.True (scrollBar.Visible);
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Assert.Equal ("Absolute(2)", scrollBar.Width!.ToString ());
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Assert.Equal (2, scrollBar.Viewport.Width);
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Assert.Equal ("Fill(Absolute(0))", scrollBar.Height!.ToString ());
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Assert.Equal (25, scrollBar.Viewport.Height);
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scrollBar.Size = 10;
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//Assert.False (scrollBar.ShowScrollIndicator);
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Assert.False (scrollBar.Visible);
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scrollBar.Size = 30;
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//Assert.True (scrollBar.ShowScrollIndicator);
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Assert.True (scrollBar.Visible);
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scrollBar.AutoHide = false;
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//Assert.True (scrollBar.ShowScrollIndicator);
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Assert.True (scrollBar.Visible);
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scrollBar.Size = 10;
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//Assert.True (scrollBar.ShowScrollIndicator);
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Assert.True (scrollBar.Visible);
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scrollBarSuperView.SuperView!.Dispose ();
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}
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[Fact]
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public void Constructor_Defaults ()
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{
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var scrollBar = new ScrollBar ();
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Assert.False (scrollBar.CanFocus);
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Assert.Equal (Orientation.Vertical, scrollBar.Orientation);
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Assert.Equal (0, scrollBar.Size);
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Assert.Equal (0, scrollBar.SliderPosition);
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Assert.True (scrollBar.AutoHide);
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}
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[Fact]
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public void OnOrientationChanged_Keeps_Size ()
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{
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var scroll = new Scroll ();
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scroll.Layout ();
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scroll.Size = 1;
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scroll.Orientation = Orientation.Horizontal;
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Assert.Equal (1, scroll.Size);
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}
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[Fact]
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public void OnOrientationChanged_Sets_Position_To_0 ()
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{
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View super = new View ()
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{
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Id = "super",
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Width = 10,
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Height = 10
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};
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var scrollBar = new ScrollBar ()
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{
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};
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super.Add (scrollBar);
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scrollBar.Layout ();
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scrollBar.SliderPosition = 1;
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scrollBar.Orientation = Orientation.Horizontal;
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Assert.Equal (0, scrollBar.SliderPosition);
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}
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[Fact]
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public void SliderPosition_Event_Cancelables ()
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{
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var changingCount = 0;
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var changedCount = 0;
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var scrollBar = new ScrollBar { };
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scrollBar.Layout ();
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scrollBar.Size = scrollBar.Viewport.Height * 2;
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scrollBar.Layout ();
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scrollBar.SliderPositionChanging += (s, e) =>
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{
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if (changingCount == 0)
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{
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e.Cancel = true;
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}
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changingCount++;
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};
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scrollBar.SliderPositionChanged += (s, e) => changedCount++;
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scrollBar.SliderPosition = 1;
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Assert.Equal (0, scrollBar.SliderPosition);
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Assert.Equal (1, changingCount);
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Assert.Equal (0, changedCount);
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scrollBar.SliderPosition = 1;
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Assert.Equal (1, scrollBar.SliderPosition);
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Assert.Equal (2, changingCount);
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Assert.Equal (1, changedCount);
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}
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[Fact]
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public void ContentPosition_Event_Cancelables ()
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{
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var changingCount = 0;
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var changedCount = 0;
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var scrollBar = new ScrollBar { };
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scrollBar.Layout ();
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scrollBar.Size = scrollBar.Viewport.Height * 2;
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scrollBar.Layout ();
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scrollBar.ContentPositionChanging += (s, e) =>
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{
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if (changingCount == 0)
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{
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e.Cancel = true;
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}
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changingCount++;
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};
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scrollBar.ContentPositionChanged += (s, e) => changedCount++;
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scrollBar.ContentPosition = 1;
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Assert.Equal (0, scrollBar.ContentPosition);
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Assert.Equal (1, changingCount);
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Assert.Equal (0, changedCount);
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scrollBar.ContentPosition = 1;
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Assert.Equal (1, scrollBar.ContentPosition);
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Assert.Equal (2, changingCount);
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Assert.Equal (1, changedCount);
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}
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[Fact (Skip = "Disabled - Will put this feature in View")]
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[AutoInitShutdown]
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public void KeepContentInAllViewport_True_False ()
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{
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var view = new View { Width = Dim.Fill (), Height = Dim.Fill () };
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view.Padding.Thickness = new (0, 0, 2, 0);
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view.SetContentSize (new (view.Viewport.Width, 30));
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var scrollBar = new ScrollBar { Width = 2, Height = Dim.Fill (), Size = view.GetContentSize ().Height };
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scrollBar.SliderPositionChanged += (_, e) => view.Viewport = view.Viewport with { Y = e.CurrentValue };
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view.Padding.Add (scrollBar);
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var top = new Toplevel ();
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top.Add (view);
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Application.Begin (top);
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Assert.False (scrollBar.KeepContentInAllViewport);
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scrollBar.KeepContentInAllViewport = true;
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Assert.Equal (80, view.Padding.Viewport.Width);
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Assert.Equal (25, view.Padding.Viewport.Height);
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Assert.Equal (2, scrollBar.Viewport.Width);
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Assert.Equal (25, scrollBar.Viewport.Height);
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Assert.Equal (30, scrollBar.Size);
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scrollBar.KeepContentInAllViewport = false;
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scrollBar.SliderPosition = 50;
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Assert.Equal (scrollBar.SliderPosition, scrollBar.Size - 1);
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Assert.Equal (scrollBar.SliderPosition, view.Viewport.Y);
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Assert.Equal (29, scrollBar.SliderPosition);
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Assert.Equal (29, view.Viewport.Y);
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top.Dispose ();
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}
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[Theory (Skip = "Disabled - Will put this feature in View")]
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[AutoInitShutdown]
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[InlineData (Orientation.Vertical)]
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[InlineData (Orientation.Horizontal)]
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public void Moving_Mouse_Outside_Host_Ensures_Correct_Location_KeepContentInAllViewport_True (Orientation orientation)
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{
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var scrollBar = new ScrollBar
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{
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X = 10, Y = 10, Width = orientation == Orientation.Vertical ? 1 : 10, Height = orientation == Orientation.Vertical ? 10 : 1, Size = 20,
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SliderPosition = 5, Orientation = orientation, KeepContentInAllViewport = true
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};
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var top = new Toplevel ();
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top.Add (scrollBar);
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RunState rs = Application.Begin (top);
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var scroll = (Scroll)scrollBar.Subviews.FirstOrDefault (x => x is Scroll);
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Rectangle scrollSliderFrame = scroll!.Subviews.FirstOrDefault (x => x is ScrollSlider)!.Frame;
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Assert.Equal (scrollSliderFrame, orientation == Orientation.Vertical ? new (0, 2, 1, 4) : new (2, 0, 4, 1));
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Application.RaiseMouseEvent (new () { ScreenPosition = orientation == Orientation.Vertical ? new (10, 14) : new (14, 10), Flags = MouseFlags.Button1Pressed });
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Application.RunIteration (ref rs);
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Application.RaiseMouseEvent (
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new ()
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{
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ScreenPosition = orientation == Orientation.Vertical ? new (10, 0) : new (0, 10),
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Flags = MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition
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});
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Application.RunIteration (ref rs);
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Assert.Equal (new (0, 0), scroll.Subviews.FirstOrDefault (x => x is ScrollSlider)!.Frame.Location);
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Application.RaiseMouseEvent (
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new ()
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{
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ScreenPosition = orientation == Orientation.Vertical ? new (0, 25) : new (80, 0),
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Flags = MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition
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});
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Application.RunIteration (ref rs);
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Assert.Equal (
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orientation == Orientation.Vertical ? new (0, 4) : new (4, 0),
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scroll.Subviews.FirstOrDefault (x => x is ScrollSlider)!.Frame.Location);
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}
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[Fact]
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public void Size_Cannot_Be_Negative ()
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{
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var scrollBar = new ScrollBar { Height = 10, Size = -1 };
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Assert.Equal (0, scrollBar.Size);
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scrollBar.Size = -10;
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Assert.Equal (0, scrollBar.Size);
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}
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[Fact]
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public void SizeChanged_Event ()
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{
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var count = 0;
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var scrollBar = new ScrollBar ();
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scrollBar.SizeChanged += (s, e) => count++;
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scrollBar.Size = 10;
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Assert.Equal (10, scrollBar.Size);
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Assert.Equal (1, count);
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}
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[Theory]
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[SetupFakeDriver]
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[InlineData (
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10,
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1,
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20,
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0,
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Orientation.Horizontal,
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@"
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┌──────────┐
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│◄███░░░░░►│
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└──────────┘")]
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[InlineData (
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10,
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3,
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20,
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1,
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Orientation.Horizontal,
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@"
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┌──────────┐
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│ ░███░░░░ │
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│◄░███░░░░►│
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│ ░███░░░░ │
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└──────────┘")]
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[InlineData (
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3,
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10,
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20,
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0,
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Orientation.Vertical,
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@"
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┌───┐
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│ ▲ │
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│███│
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│███│
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│███│
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│░░░│
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│░░░│
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│░░░│
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│░░░│
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│░░░│
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│ ▼ │
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└───┘")]
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[InlineData (
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6,
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10,
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20,
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1,
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Orientation.Vertical,
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@"
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┌──────┐
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│ ▲ │
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│░░░░░░│
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│██████│
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│██████│
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│██████│
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│░░░░░░│
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│░░░░░░│
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│░░░░░░│
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│░░░░░░│
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│ ▼ │
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└──────┘")]
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public void Draws_Correctly (int superViewportWidth, int superViewportHeight, int sliderSize, int sliderPosition, Orientation orientation, string expected)
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{
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var super = new Window
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{
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Id = "super",
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Width = superViewportWidth + 2,
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Height = superViewportHeight + 2
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};
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var scrollBar = new ScrollBar
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{
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Orientation = orientation,
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};
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if (orientation == Orientation.Vertical)
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{
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scrollBar.Width = Dim.Fill ();
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}
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else
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{
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scrollBar.Height = Dim.Fill ();
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}
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super.Add (scrollBar);
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scrollBar.Size = sliderSize;
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scrollBar.Layout ();
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scrollBar.SliderPosition = sliderPosition;
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super.BeginInit ();
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super.EndInit ();
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super.Layout ();
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super.Draw ();
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_ = TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
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}
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private View ScrollBarSuperView ()
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{
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var view = new View
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{
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Width = Dim.Fill (),
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Height = Dim.Fill ()
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};
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var top = new Toplevel ();
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top.Add (view);
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return view;
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}
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[Theory]
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[CombinatorialData]
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[AutoInitShutdown]
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public void Mouse_Click_DecrementButton_Decrements ([CombinatorialRange (1, 3, 1)] int increment, Orientation orientation)
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{
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var top = new Toplevel ()
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{
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Id = "top",
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Width = 10,
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Height = 10
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};
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var scrollBar = new ScrollBar
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{
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Id = "scrollBar",
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Orientation = orientation,
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Size = 20,
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Increment = increment
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};
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top.Add (scrollBar);
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RunState rs = Application.Begin (top);
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scrollBar.SliderPosition = 5;
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Application.RunIteration (ref rs);
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Assert.Equal (5, scrollBar.SliderPosition);
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Assert.Equal (12, scrollBar.ContentPosition);
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int initialPos = scrollBar.ContentPosition;
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Application.RaiseMouseEvent (new ()
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{
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ScreenPosition = new (0, 0),
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Flags = MouseFlags.Button1Clicked
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});
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Application.RunIteration (ref rs);
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Assert.Equal (initialPos - increment, scrollBar.ContentPosition);
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Application.ResetState (true);
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}
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[Theory]
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[CombinatorialData]
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[AutoInitShutdown]
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public void Mouse_Click_IncrementButton_Increments ([CombinatorialRange (1, 3, 1)] int increment, Orientation orientation)
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{
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var top = new Toplevel ()
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{
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Id = "top",
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Width = 10,
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Height = 10
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};
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var scrollBar = new ScrollBar
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{
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Id = "scrollBar",
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Orientation = orientation,
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Size = 20,
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Increment = increment
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};
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top.Add (scrollBar);
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RunState rs = Application.Begin (top);
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scrollBar.SliderPosition = 0;
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Application.RunIteration (ref rs);
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Assert.Equal (0, scrollBar.SliderPosition);
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Assert.Equal (0, scrollBar.ContentPosition);
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int initialPos = scrollBar.ContentPosition;
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Application.RaiseMouseEvent (new ()
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{
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ScreenPosition = orientation == Orientation.Vertical ? new (0, scrollBar.Frame.Height - 1) : new (scrollBar.Frame.Width - 1, 0),
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Flags = MouseFlags.Button1Clicked
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});
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Application.RunIteration (ref rs);
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Assert.Equal (initialPos + increment, scrollBar.ContentPosition);
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Application.ResetState (true);
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}
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}
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