mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2025-12-27 16:27:55 +01:00
638 lines
18 KiB
C#
638 lines
18 KiB
C#
using Microsoft.VisualStudio.TestPlatform.Utilities;
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using Xunit.Abstractions;
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namespace Terminal.Gui.ViewsTests;
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public class ScrollTests
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{
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public ScrollTests (ITestOutputHelper output) { _output = output; }
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private readonly ITestOutputHelper _output;
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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 scroll = new Scroll ()
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{
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};
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super.Add (scroll);
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scroll.Layout ();
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scroll.SliderPosition = 1;
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scroll.Orientation = Orientation.Horizontal;
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Assert.Equal (0, scroll.SliderPosition);
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}
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// [Theory]
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// [AutoInitShutdown]
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// [InlineData (
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// 20,
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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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// 40,
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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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// @"
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//░░███░░░░░",
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// @"
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//░██░░░░░░░")]
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// public void Changing_Position_Size_Orientation_Draws_Correctly_KeepContentInAllViewport_True (
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// int size,
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// string firstVertExpected,
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// string middleVertExpected,
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// string endVertExpected,
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// string sizeVertExpected,
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// string firstHoriExpected,
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// string middleHoriExpected,
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// string endHoriExpected,
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// string sizeHoriExpected
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// )
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// {
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// var scroll = new Scroll
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// {
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// Orientation = Orientation.Vertical,
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// Size = size,
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// Height = 10,
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// KeepContentInAllViewport = true
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// };
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// var top = new Toplevel ();
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// top.Add (scroll);
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// RunState rs = Application.Begin (top);
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// Application.RunIteration (ref rs);
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// _ = TestHelpers.AssertDriverContentsWithFrameAre (firstVertExpected, _output);
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// scroll.Position = 4;
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// Application.RunIteration (ref rs);
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// _ = TestHelpers.AssertDriverContentsWithFrameAre (middleVertExpected, _output);
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// scroll.Position = 10;
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// Application.RunIteration (ref rs);
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// _ = TestHelpers.AssertDriverContentsWithFrameAre (endVertExpected, _output);
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// scroll.Size = size * 2;
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// Application.RunIteration (ref rs);
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// _ = TestHelpers.AssertDriverContentsWithFrameAre (sizeVertExpected, _output);
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// scroll.Orientation = Orientation.Horizontal;
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// scroll.Width = 10;
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// scroll.Height = 1;
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// scroll.Position = 0;
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// scroll.Size = size;
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// Application.RunIteration (ref rs);
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// _ = TestHelpers.AssertDriverContentsWithFrameAre (firstHoriExpected, _output);
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// scroll.Position = 4;
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// Application.RunIteration (ref rs);
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// _ = TestHelpers.AssertDriverContentsWithFrameAre (middleHoriExpected, _output);
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// scroll.Position = 10;
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// Application.RunIteration (ref rs);
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// _ = TestHelpers.AssertDriverContentsWithFrameAre (endHoriExpected, _output);
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// scroll.Size = size * 2;
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// Application.RunIteration (ref rs);
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// _ = TestHelpers.AssertDriverContentsWithFrameAre (sizeHoriExpected, _output);
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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 scroll = new Scroll ();
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Assert.False (scroll.CanFocus);
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Assert.Equal (Orientation.Vertical, scroll.Orientation);
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Assert.Equal (0, scroll.Size);
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Assert.Equal (0, scroll.SliderPosition);
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}
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//[Fact]
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//[AutoInitShutdown]
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//public void KeepContentInAllViewport_True_False_KeepContentInAllViewport_True ()
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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 scroll = new Scroll { Width = 2, Height = Dim.Fill (), Size = view.GetContentSize ().Height, KeepContentInAllViewport = true };
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// scroll.PositionChanged += (_, e) => view.Viewport = view.Viewport with { Y = e.CurrentValue };
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// view.Padding.Add (scroll);
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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.True (scroll.KeepContentInAllViewport);
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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, scroll.Viewport.Width);
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// Assert.Equal (25, scroll.Viewport.Height);
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// Assert.Equal (30, scroll.Size);
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// scroll.KeepContentInAllViewport = false;
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// scroll.Position = 50;
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// Assert.Equal (scroll.Position, scroll.Size - 1);
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// Assert.Equal (scroll.Position, view.Viewport.Y);
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// Assert.Equal (29, scroll.Position);
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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]
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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 scroll = new Scroll
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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
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// };
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// var top = new Toplevel ();
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// top.Add (scroll);
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// RunState rs = Application.Begin (top);
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// Rectangle scrollSliderFrame = scroll.Subviews.FirstOrDefault (x => x.Id == "scrollSlider")!.Frame;
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// Assert.Equal (scrollSliderFrame, orientation == Orientation.Vertical ? new (0, 2, 1, 5) : new (2, 0, 5, 1));
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// Application.RaiseMouseEvent (new () { ScreenPosition = orientation == Orientation.Vertical ? new (10, 12) : new (12, 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.Id == "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, 5) : new (5, 0),
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// scroll.Subviews.FirstOrDefault (x => x.Id == "scrollSlider")!.Frame.Location);
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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_Wheel_Increments_Position ([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 scroll = new Scroll
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{
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Id = "scroll",
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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 (scroll);
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RunState rs = Application.Begin (top);
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Assert.Equal (0, scroll.SliderPosition);
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Assert.Equal (0, scroll.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 = orientation == Orientation.Vertical ? MouseFlags.WheeledDown : MouseFlags.WheeledRight
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});
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Application.RunIteration (ref rs);
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Assert.Equal (increment, scroll.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 = orientation == Orientation.Vertical ? MouseFlags.WheeledDown : MouseFlags.WheeledRight
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});
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Application.RunIteration (ref rs);
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Assert.Equal (increment * 2, scroll.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 = orientation == Orientation.Vertical ? MouseFlags.WheeledUp : MouseFlags.WheeledLeft
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});
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Application.RunIteration (ref rs);
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Assert.Equal (increment, scroll.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_Outside_Slider_Moves (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 scroll = new Scroll
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{
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Id = "scroll",
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Orientation = orientation,
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Size = 20,
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};
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top.Add (scroll);
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RunState rs = Application.Begin (top);
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scroll.SliderPosition = 5;
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Application.RunIteration (ref rs);
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Assert.Equal (5, scroll.SliderPosition);
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Assert.Equal (10, scroll.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 (0, scroll.SliderPosition);
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Assert.Equal (0, scroll.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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public void Position_Clamps_To_Size (
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[CombinatorialRange (1, 6, 1)] int scrollSize,
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[CombinatorialRange (-1, 6, 1)] int scrollPosition,
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Orientation orientation
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)
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{
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var super = new View
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{
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Id = "super",
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Width = 5,
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Height = 5
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};
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var scroll = new Scroll
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{
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Orientation = orientation,
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Width = Dim.Fill (),
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Height = Dim.Fill ()
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};
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super.Add (scroll);
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scroll.Size = scrollSize;
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super.Layout ();
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scroll.SliderPosition = scrollPosition;
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super.Layout ();
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Assert.True (scroll.SliderPosition <= scrollSize);
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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 scroll = new Scroll { };
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scroll.Layout ();
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scroll.Size = scroll.Viewport.Height * 2;
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scroll.Layout ();
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scroll.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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scroll.SliderPositionChanged += (s, e) => changedCount++;
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scroll.SliderPosition = 1;
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Assert.Equal (0, scroll.SliderPosition);
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Assert.Equal (1, changingCount);
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Assert.Equal (0, changedCount);
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scroll.SliderPosition = 1;
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Assert.Equal (1, scroll.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 PositionChanging_PositionChanged_Events_Only_Raises_Once_If_Position_Was_Really_Changed ()
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{
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var changing = 0;
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var cancel = false;
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var changed = 0;
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var scroll = new Scroll { Height = 10, Size = 20 };
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scroll.SliderPositionChanging += Scroll_PositionChanging;
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scroll.SliderPositionChanged += Scroll_PositionChanged;
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Assert.Equal (Orientation.Vertical, scroll.Orientation);
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scroll.Layout ();
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Assert.Equal (new (0, 0, 1, 10), scroll.Viewport);
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Assert.Equal (0, scroll.SliderPosition);
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Assert.Equal (0, changing);
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Assert.Equal (0, changed);
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scroll.SliderPosition = 0;
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Assert.Equal (0, scroll.SliderPosition);
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Assert.Equal (0, changing);
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Assert.Equal (0, changed);
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scroll.SliderPosition = 1;
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Assert.Equal (1, scroll.SliderPosition);
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Assert.Equal (1, changing);
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Assert.Equal (1, changed);
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Reset ();
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cancel = true;
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scroll.SliderPosition = 2;
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Assert.Equal (1, scroll.SliderPosition);
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Assert.Equal (1, changing);
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Assert.Equal (0, changed);
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Reset ();
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scroll.SliderPosition = 10;
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Assert.Equal (5, scroll.SliderPosition);
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Assert.Equal (1, changing);
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Assert.Equal (1, changed);
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Reset ();
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scroll.SliderPosition = 11;
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Assert.Equal (5, scroll.SliderPosition);
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Assert.Equal (1, changing);
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Assert.Equal (1, changed);
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Reset ();
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scroll.SliderPosition = 0;
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Assert.Equal (0, scroll.SliderPosition);
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Assert.Equal (1, changing);
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Assert.Equal (1, changed);
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scroll.SliderPositionChanging -= Scroll_PositionChanging;
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scroll.SliderPositionChanged -= Scroll_PositionChanged;
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void Scroll_PositionChanging (object sender, CancelEventArgs<int> e)
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{
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changing++;
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e.Cancel = cancel;
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}
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void Scroll_PositionChanged (object sender, EventArgs<int> e) { changed++; }
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void Reset ()
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{
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changing = 0;
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cancel = false;
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changed = 0;
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}
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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 scroll = new Scroll { Height = 10, Size = -1 };
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Assert.Equal (0, scroll.Size);
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scroll.Size = -10;
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Assert.Equal (0, scroll.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 scroll = new Scroll ();
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scroll.Layout ();
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scroll.SizeChanged += (s, e) => count++;
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scroll.Size = 10;
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Assert.Equal (10, scroll.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,
|
|
0,
|
|
Orientation.Vertical,
|
|
@"
|
|
┌───┐
|
|
│███│
|
|
│███│
|
|
│███│
|
|
│███│
|
|
│███│
|
|
│░░░│
|
|
│░░░│
|
|
│░░░│
|
|
│░░░│
|
|
│░░░│
|
|
└───┘")]
|
|
|
|
|
|
public void Draws_Correctly (int superViewportWidth, int superViewportHeight, int sliderSize, int sliderPosition, Orientation orientation, string expected)
|
|
{
|
|
var super = new Window
|
|
{
|
|
Id = "super",
|
|
Width = superViewportWidth + 2,
|
|
Height = superViewportHeight + 2
|
|
};
|
|
|
|
var scroll = new Scroll
|
|
{
|
|
Orientation = orientation,
|
|
};
|
|
|
|
if (orientation == Orientation.Vertical)
|
|
{
|
|
scroll.Width = Dim.Fill ();
|
|
}
|
|
else
|
|
{
|
|
scroll.Height = Dim.Fill ();
|
|
}
|
|
super.Add (scroll);
|
|
|
|
scroll.Size = sliderSize;
|
|
scroll.Layout ();
|
|
scroll.SliderPosition = sliderPosition;
|
|
|
|
super.BeginInit ();
|
|
super.EndInit ();
|
|
super.Layout ();
|
|
super.Draw ();
|
|
|
|
_ = TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
|
|
}
|
|
}
|