mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2025-12-27 16:27:55 +01:00
1025 lines
25 KiB
C#
1025 lines
25 KiB
C#
using Xunit.Abstractions;
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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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[Theory]
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[AutoInitShutdown]
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[InlineData (
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20,
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@"
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public void Changing_Position_Size_Orientation_Draws_Correctly (
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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 scrollBar = new ScrollBar
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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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};
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var top = new Toplevel ();
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top.Add (scrollBar);
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Application.Begin (top);
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_ = TestHelpers.AssertDriverContentsWithFrameAre (firstVertExpected, _output);
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scrollBar.Position = 4;
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Application.Refresh ();
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_ = TestHelpers.AssertDriverContentsWithFrameAre (middleVertExpected, _output);
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scrollBar.Position = 10;
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Application.Refresh ();
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_ = TestHelpers.AssertDriverContentsWithFrameAre (endVertExpected, _output);
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scrollBar.Size = size * 2;
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Application.Refresh ();
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_ = TestHelpers.AssertDriverContentsWithFrameAre (sizeVertExpected, _output);
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scrollBar.Orientation = Orientation.Horizontal;
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scrollBar.Width = 10;
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scrollBar.Height = 1;
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scrollBar.Position = 0;
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scrollBar.Size = size;
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Application.Refresh ();
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_ = TestHelpers.AssertDriverContentsWithFrameAre (firstHoriExpected, _output);
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scrollBar.Position = 4;
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Application.Refresh ();
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_ = TestHelpers.AssertDriverContentsWithFrameAre (middleHoriExpected, _output);
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scrollBar.Position = 10;
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Application.Refresh ();
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_ = TestHelpers.AssertDriverContentsWithFrameAre (endHoriExpected, _output);
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scrollBar.Size = size * 2;
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Application.Refresh ();
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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 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.Position);
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}
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[Theory]
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[AutoInitShutdown]
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[InlineData (
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Orientation.Vertical,
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20,
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10,
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4,
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▼")]
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[InlineData (
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Orientation.Vertical,
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40,
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10,
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5,
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[InlineData (
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Orientation.Horizontal,
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20,
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10,
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4,
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@"
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◄░░░░████►",
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2,
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[InlineData (
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Orientation.Horizontal,
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40,
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10,
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5,
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@"
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◄░░██░░░░►",
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18,
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@"
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◄░░░░██░░►")]
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public void Mouse_On_The_Container (Orientation orientation, int size, int position, int location, string output, int expectedPos, string expectedOut)
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{
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var scrollBar = new ScrollBar
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{
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Width = orientation == Orientation.Vertical ? 1 : 10,
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Height = orientation == Orientation.Vertical ? 10 : 1,
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Orientation = orientation, Size = size,
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Position = position
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};
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var top = new Toplevel ();
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top.Add (scrollBar);
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Application.Begin (top);
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_ = TestHelpers.AssertDriverContentsWithFrameAre (output, _output);
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Application.OnMouseEvent (
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new ()
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{
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Position = orientation == Orientation.Vertical ? new (0, location) : new Point (location, 0),
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Flags = MouseFlags.Button1Pressed
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});
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Assert.Equal (expectedPos, scrollBar.Position);
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Application.Refresh ();
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_ = TestHelpers.AssertDriverContentsWithFrameAre (expectedOut, _output);
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}
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[Theory]
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[AutoInitShutdown]
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[InlineData (
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Orientation.Vertical,
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20,
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10,
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5,
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5,
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▼",
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MouseFlags.Button1Pressed,
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[InlineData (
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Orientation.Vertical,
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3,
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3,
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MouseFlags.Button1Pressed,
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[InlineData (
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Orientation.Horizontal,
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20,
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10,
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5,
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5,
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@"
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MouseFlags.Button1Pressed,
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10,
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@"
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[InlineData (
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Orientation.Horizontal,
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40,
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10,
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3,
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3,
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@"
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◄░░██░░░░►",
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MouseFlags.Button1Pressed,
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10,
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@"
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[InlineData (
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Orientation.Vertical,
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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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[InlineData (
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Orientation.Horizontal,
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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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8,
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@"
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[InlineData (
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Orientation.Vertical,
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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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[InlineData (
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Orientation.Horizontal,
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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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12,
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[InlineData (
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Orientation.Vertical,
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40,
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2,
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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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[InlineData (
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Orientation.Horizontal,
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40,
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10,
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2,
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1,
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@"
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◄░░██░░░░►",
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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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2,
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@"
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[InlineData (
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Orientation.Vertical,
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40,
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10,
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3,
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4,
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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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15,
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@"
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[InlineData (
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Orientation.Horizontal,
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40,
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10,
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3,
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4,
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@"
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◄░░██░░░░►",
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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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15,
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@"
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◄░░░██░░░►")]
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[InlineData (
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Orientation.Vertical,
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40,
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10,
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3,
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3,
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@"
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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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10,
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@"
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▲
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▼")]
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[InlineData (
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Orientation.Horizontal,
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40,
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10,
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3,
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3,
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@"
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◄░░██░░░░►",
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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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10,
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@"
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◄░░██░░░░►")]
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[InlineData (
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Orientation.Vertical,
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40,
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10,
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3,
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5,
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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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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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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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[InlineData (
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Orientation.Horizontal,
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40,
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10,
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3,
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5,
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@"
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◄░░██░░░░►",
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MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition,
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20,
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@"
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◄░░░░██░░►")]
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public void Mouse_On_The_Slider (
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Orientation orientation,
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int size,
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int position,
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int startLocation,
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int endLocation,
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string output,
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MouseFlags mouseFlags,
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int expectedPos,
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string expectedOut
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)
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{
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var scrollBar = new ScrollBar
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{
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Width = orientation == Orientation.Vertical ? 1 : 10,
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Height = orientation == Orientation.Vertical ? 10 : 1,
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Orientation = orientation,
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Size = size, Position = position
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};
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var top = new Toplevel ();
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top.Add (scrollBar);
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Application.Begin (top);
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_ = TestHelpers.AssertDriverContentsWithFrameAre (output, _output);
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Assert.Null (Application.MouseGrabView);
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if (mouseFlags.HasFlag (MouseFlags.ReportMousePosition))
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{
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MouseFlags mf = mouseFlags & ~MouseFlags.ReportMousePosition;
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Application.OnMouseEvent (
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new ()
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{
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Position = orientation == Orientation.Vertical ? new (0, startLocation) : new (startLocation, 0),
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Flags = mf
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});
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Application.OnMouseEvent (
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new ()
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{
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Position = orientation == Orientation.Vertical ? new (0, endLocation) : new (endLocation, 0),
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Flags = mouseFlags
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});
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}
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else
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{
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Assert.Equal (startLocation, endLocation);
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|
Application.OnMouseEvent (
|
|
new ()
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|
{
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|
Position = orientation == Orientation.Vertical ? new (0, startLocation) : new (startLocation, 0),
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Flags = mouseFlags
|
|
});
|
|
}
|
|
|
|
Assert.Equal ("scrollSlider", Application.MouseGrabView?.Id);
|
|
Assert.IsType<ScrollSlider> (Application.MouseGrabView);
|
|
Assert.Equal (expectedPos, scrollBar.Position);
|
|
|
|
Application.Refresh ();
|
|
_ = TestHelpers.AssertDriverContentsWithFrameAre (expectedOut, _output);
|
|
|
|
Application.OnMouseEvent (
|
|
new ()
|
|
{
|
|
Position = orientation == Orientation.Vertical ? new (0, startLocation) : new (startLocation, 0),
|
|
Flags = MouseFlags.Button1Released
|
|
});
|
|
Assert.Null (Application.MouseGrabView);
|
|
}
|
|
|
|
[Theory]
|
|
[AutoInitShutdown]
|
|
[InlineData (Orientation.Vertical)]
|
|
[InlineData (Orientation.Horizontal)]
|
|
public void Moving_Mouse_Outside_Host_Ensures_Correct_Location (Orientation orientation)
|
|
{
|
|
var scrollBar = new ScrollBar
|
|
{
|
|
X = 10, Y = 10, Width = orientation == Orientation.Vertical ? 1 : 10, Height = orientation == Orientation.Vertical ? 10 : 1, Size = 20,
|
|
Position = 5, Orientation = orientation
|
|
};
|
|
var top = new Toplevel ();
|
|
top.Add (scrollBar);
|
|
Application.Begin (top);
|
|
|
|
var scroll = (Scroll)scrollBar.Subviews.FirstOrDefault (x => x is Scroll);
|
|
Rectangle scrollSliderFrame = scroll!.Subviews.FirstOrDefault (x => x is ScrollSlider)!.Frame;
|
|
Assert.Equal (scrollSliderFrame, orientation == Orientation.Vertical ? new (0, 2, 1, 4) : new (2, 0, 4, 1));
|
|
|
|
Application.OnMouseEvent (new () { Position = orientation == Orientation.Vertical ? new (10, 14) : new (14, 10), Flags = MouseFlags.Button1Pressed });
|
|
|
|
Application.OnMouseEvent (
|
|
new ()
|
|
{
|
|
Position = orientation == Orientation.Vertical ? new (10, 0) : new (0, 10),
|
|
Flags = MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition
|
|
});
|
|
Assert.Equal (new (0, 0), scroll.Subviews.FirstOrDefault (x => x is ScrollSlider)!.Frame.Location);
|
|
|
|
Application.OnMouseEvent (
|
|
new ()
|
|
{
|
|
Position = orientation == Orientation.Vertical ? new (0, 25) : new (80, 0),
|
|
Flags = MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition
|
|
});
|
|
|
|
Assert.Equal (
|
|
orientation == Orientation.Vertical ? new (0, 4) : new (4, 0),
|
|
scroll.Subviews.FirstOrDefault (x => x is ScrollSlider)!.Frame.Location);
|
|
}
|
|
|
|
[Theory]
|
|
[InlineData (Orientation.Vertical, 20, 10)]
|
|
[InlineData (Orientation.Vertical, 40, 30)]
|
|
public void Position_Cannot_Be_Negative_Nor_Greater_Than_Size_Minus_Frame_Length (Orientation orientation, int size, int expectedPos)
|
|
{
|
|
var scrollBar = new ScrollBar { Orientation = orientation, Height = 10, Size = size };
|
|
Assert.Equal (0, scrollBar.Position);
|
|
|
|
scrollBar.Position = -1;
|
|
Assert.Equal (0, scrollBar.Position);
|
|
|
|
scrollBar.Position = size;
|
|
Assert.Equal (0, scrollBar.Position);
|
|
|
|
scrollBar.Position = expectedPos;
|
|
Assert.Equal (expectedPos, scrollBar.Position);
|
|
}
|
|
|
|
[Fact]
|
|
public void PositionChanging_Cancelable_And_PositionChanged_Events ()
|
|
{
|
|
var changingCount = 0;
|
|
var changedCount = 0;
|
|
var scrollBar = new ScrollBar { Size = 10 };
|
|
|
|
scrollBar.PositionChanging += (s, e) =>
|
|
{
|
|
if (changingCount == 0)
|
|
{
|
|
e.Cancel = true;
|
|
}
|
|
|
|
changingCount++;
|
|
};
|
|
scrollBar.PositionChanged += (s, e) => changedCount++;
|
|
|
|
scrollBar.Position = 1;
|
|
Assert.Equal (0, scrollBar.Position);
|
|
Assert.Equal (1, changingCount);
|
|
Assert.Equal (0, changedCount);
|
|
|
|
scrollBar.Position = 1;
|
|
Assert.Equal (1, scrollBar.Position);
|
|
Assert.Equal (2, changingCount);
|
|
Assert.Equal (1, changedCount);
|
|
}
|
|
|
|
[Fact]
|
|
public void PositionChanging_PositionChanged_Events_Only_Raises_Once_If_Position_Was_Really_Changed ()
|
|
{
|
|
var changing = 0;
|
|
var cancel = false;
|
|
var changed = 0;
|
|
var scrollBar = new ScrollBar { Height = 10, Size = 20 };
|
|
scrollBar.PositionChanging += Scroll_PositionChanging;
|
|
scrollBar.PositionChanged += Scroll_PositionChanged;
|
|
|
|
Assert.Equal (Orientation.Vertical, scrollBar.Orientation);
|
|
Assert.Equal (new (0, 0, 1, 10), scrollBar.Viewport);
|
|
Assert.Equal (0, scrollBar.Position);
|
|
Assert.Equal (0, changing);
|
|
Assert.Equal (0, changed);
|
|
|
|
scrollBar.Position = 0;
|
|
Assert.Equal (0, scrollBar.Position);
|
|
Assert.Equal (0, changing);
|
|
Assert.Equal (0, changed);
|
|
|
|
scrollBar.Position = 1;
|
|
Assert.Equal (1, scrollBar.Position);
|
|
Assert.Equal (1, changing);
|
|
Assert.Equal (1, changed);
|
|
|
|
Reset ();
|
|
cancel = true;
|
|
scrollBar.Position = 2;
|
|
Assert.Equal (1, scrollBar.Position);
|
|
Assert.Equal (1, changing);
|
|
Assert.Equal (0, changed);
|
|
|
|
Reset ();
|
|
scrollBar.Position = 10;
|
|
Assert.Equal (10, scrollBar.Position);
|
|
Assert.Equal (1, changing);
|
|
Assert.Equal (1, changed);
|
|
|
|
Reset ();
|
|
scrollBar.Position = 11;
|
|
Assert.Equal (11, scrollBar.Position);
|
|
Assert.Equal (1, changing);
|
|
Assert.Equal (1, changed);
|
|
|
|
Reset ();
|
|
scrollBar.Position = 12;
|
|
Assert.Equal (12, scrollBar.Position);
|
|
Assert.Equal (1, changing);
|
|
Assert.Equal (1, changed);
|
|
|
|
Reset ();
|
|
scrollBar.Position = 13;
|
|
Assert.Equal (12, scrollBar.Position);
|
|
Assert.Equal (0, changing);
|
|
Assert.Equal (0, changed);
|
|
|
|
Reset ();
|
|
scrollBar.Position = 0;
|
|
Assert.Equal (0, scrollBar.Position);
|
|
Assert.Equal (1, changing);
|
|
Assert.Equal (1, changed);
|
|
|
|
scrollBar.PositionChanging -= Scroll_PositionChanging;
|
|
scrollBar.PositionChanged -= Scroll_PositionChanged;
|
|
|
|
void Scroll_PositionChanging (object sender, CancelEventArgs<int> e)
|
|
{
|
|
changing++;
|
|
e.Cancel = cancel;
|
|
}
|
|
|
|
void Scroll_PositionChanged (object sender, EventArgs<int> e) { changed++; }
|
|
|
|
void Reset ()
|
|
{
|
|
changing = 0;
|
|
cancel = false;
|
|
changed = 0;
|
|
}
|
|
}
|
|
|
|
[Fact]
|
|
public void SizeChanged_Event ()
|
|
{
|
|
var count = 0;
|
|
var scrollBar = new ScrollBar ();
|
|
scrollBar.SizeChanged += (s, e) => count++;
|
|
|
|
scrollBar.Size = 10;
|
|
Assert.Equal (10, scrollBar.Size);
|
|
Assert.Equal (1, count);
|
|
}
|
|
|
|
[Theory]
|
|
[AutoInitShutdown]
|
|
[InlineData (
|
|
3,
|
|
10,
|
|
1,
|
|
Orientation.Vertical,
|
|
@"
|
|
┌─┐
|
|
│▲│
|
|
│█│
|
|
│█│
|
|
│░│
|
|
│░│
|
|
│░│
|
|
│░│
|
|
│▼│
|
|
└─┘")]
|
|
[InlineData (
|
|
10,
|
|
3,
|
|
1,
|
|
Orientation.Horizontal,
|
|
@"
|
|
┌────────┐
|
|
│◄██░░░░►│
|
|
└────────┘")]
|
|
[InlineData (
|
|
3,
|
|
10,
|
|
3,
|
|
Orientation.Vertical,
|
|
@"
|
|
┌───┐
|
|
│ ▲ │
|
|
│███│
|
|
│███│
|
|
│░░░│
|
|
│░░░│
|
|
│░░░│
|
|
│░░░│
|
|
│ ▼ │
|
|
└───┘")]
|
|
[InlineData (
|
|
10,
|
|
3,
|
|
3,
|
|
Orientation.Horizontal,
|
|
@"
|
|
┌────────┐
|
|
│ ██░░░░ │
|
|
│◄██░░░░►│
|
|
│ ██░░░░ │
|
|
└────────┘")]
|
|
public void Vertical_Horizontal_Draws_Correctly (int sizeWidth, int sizeHeight, int widthHeight, Orientation orientation, string expected)
|
|
{
|
|
var super = new Window { Id = "super", Width = Dim.Fill (), Height = Dim.Fill () };
|
|
var top = new Toplevel ();
|
|
top.Add (super);
|
|
|
|
var scrollBar = new ScrollBar
|
|
{
|
|
Orientation = orientation,
|
|
Size = orientation == Orientation.Vertical ? sizeHeight * 2 : sizeWidth * 2,
|
|
Width = orientation == Orientation.Vertical ? widthHeight : Dim.Fill (),
|
|
Height = orientation == Orientation.Vertical ? Dim.Fill () : widthHeight
|
|
};
|
|
super.Add (scrollBar);
|
|
|
|
Application.Begin (top);
|
|
|
|
((FakeDriver)Application.Driver)!.SetBufferSize (
|
|
sizeWidth + (orientation == Orientation.Vertical ? widthHeight - 1 : 0),
|
|
sizeHeight + (orientation == Orientation.Vertical ? 0 : widthHeight - 1));
|
|
|
|
_ = TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
|
|
}
|
|
|
|
[Theory]
|
|
[AutoInitShutdown]
|
|
[InlineData (Orientation.Vertical)]
|
|
[InlineData (Orientation.Horizontal)]
|
|
public void Mouse_Pressed_On_ScrollButton_Changes_Position (Orientation orientation)
|
|
{
|
|
var scrollBar = new ScrollBar
|
|
{
|
|
X = 10, Y = 10, Width = orientation == Orientation.Vertical ? 1 : 10, Height = orientation == Orientation.Vertical ? 10 : 1, Size = 20,
|
|
Orientation = orientation
|
|
};
|
|
var top = new Toplevel ();
|
|
top.Add (scrollBar);
|
|
Application.Begin (top);
|
|
|
|
var scroll = (Scroll)scrollBar.Subviews.FirstOrDefault (x => x is Scroll);
|
|
Rectangle scrollSliderFrame = scroll!.Subviews.FirstOrDefault (x => x is ScrollSlider)!.Frame;
|
|
Assert.Equal (scrollSliderFrame, orientation == Orientation.Vertical ? new (0, 0, 1, 4) : new (0, 0, 4, 1));
|
|
Assert.Equal (0, scrollBar.Position);
|
|
|
|
// ScrollButton increase
|
|
for (int i = 0; i < 13; i++)
|
|
{
|
|
Application.OnMouseEvent (new () { Position = orientation == Orientation.Vertical ? new (10, 19) : new (19, 10), Flags = MouseFlags.Button1Pressed });
|
|
|
|
if (i < 12)
|
|
{
|
|
Assert.Equal (i + 1, scrollBar.Position);
|
|
}
|
|
else
|
|
{
|
|
Assert.Equal (i, scrollBar.Position);
|
|
Assert.Equal (
|
|
orientation == Orientation.Vertical ? new (0, 4) : new (4, 0),
|
|
scroll.Subviews.FirstOrDefault (x => x is ScrollSlider)!.Frame.Location);
|
|
}
|
|
|
|
}
|
|
|
|
for (int i = 12; i > -1; i--)
|
|
{
|
|
Application.OnMouseEvent (new () { Position = new (10, 10), Flags = MouseFlags.Button1Pressed });
|
|
|
|
if (i > 0)
|
|
{
|
|
Assert.Equal (i - 1, scrollBar.Position);
|
|
}
|
|
else
|
|
{
|
|
Assert.Equal (0, scrollBar.Position);
|
|
Assert.Equal (new (0, 0), scroll.Subviews.FirstOrDefault (x => x is ScrollSlider)!.Frame.Location);
|
|
}
|
|
}
|
|
}
|
|
}
|