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Terminal.Gui/UnitTests/View/NavigationTests.cs

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using Xunit.Abstractions;
// Alias Console to MockConsole so we don't accidentally use Console
using Console = Terminal.Gui.FakeConsole;
namespace Terminal.Gui.ViewTests;
public class NavigationTests
{
private readonly ITestOutputHelper _output;
public NavigationTests (ITestOutputHelper output) { _output = output; }
[Fact]
public void BringSubviewForward_Subviews_vs_TabIndexes ()
{
var r = new View ();
var v1 = new View { CanFocus = true };
var v2 = new View { CanFocus = true };
var v3 = new View { CanFocus = true };
r.Add (v1, v2, v3);
r.BringSubviewForward (v1);
Assert.True (r.Subviews.IndexOf (v1) == 1);
Assert.True (r.Subviews.IndexOf (v2) == 0);
Assert.True (r.Subviews.IndexOf (v3) == 2);
Assert.True (r.TabIndexes.IndexOf (v1) == 0);
Assert.True (r.TabIndexes.IndexOf (v2) == 1);
Assert.True (r.TabIndexes.IndexOf (v3) == 2);
r.Dispose ();
}
[Fact]
public void BringSubviewToFront_Subviews_vs_TabIndexes ()
{
var r = new View ();
var v1 = new View { CanFocus = true };
var v2 = new View { CanFocus = true };
var v3 = new View { CanFocus = true };
r.Add (v1, v2, v3);
r.BringSubviewToFront (v1);
Assert.True (r.Subviews.IndexOf (v1) == 2);
Assert.True (r.Subviews.IndexOf (v2) == 0);
Assert.True (r.Subviews.IndexOf (v3) == 1);
Assert.True (r.TabIndexes.IndexOf (v1) == 0);
Assert.True (r.TabIndexes.IndexOf (v2) == 1);
Assert.True (r.TabIndexes.IndexOf (v3) == 2);
r.Dispose ();
}
[Fact]
public void CanFocus_Container_ToFalse_Turns_All_Subviews_ToFalse_Too ()
{
Application.Init (new FakeDriver ());
Toplevel t = new ();
var w = new Window ();
var f = new FrameView ();
var v1 = new View { CanFocus = true };
var v2 = new View { CanFocus = true };
f.Add (v1, v2);
w.Add (f);
t.Add (w);
t.Ready += (s, e) =>
{
Assert.True (t.CanFocus);
Assert.True (w.CanFocus);
Assert.True (f.CanFocus);
Assert.True (v1.CanFocus);
Assert.True (v2.CanFocus);
w.CanFocus = false;
Assert.False (w.CanFocus);
Assert.False (f.CanFocus);
Assert.False (v1.CanFocus);
Assert.False (v2.CanFocus);
};
Application.Iteration += (s, a) => Application.RequestStop ();
Application.Run (t);
t.Dispose ();
Application.Shutdown ();
}
[Fact]
public void CanFocus_Container_Toggling_All_Subviews_To_Old_Value_When_Is_True ()
{
Application.Init (new FakeDriver ());
Toplevel t = new ();
var w = new Window ();
var f = new FrameView ();
var v1 = new View ();
var v2 = new View { CanFocus = true };
f.Add (v1, v2);
w.Add (f);
t.Add (w);
t.Ready += (s, e) =>
{
Assert.True (t.CanFocus);
Assert.True (w.CanFocus);
Assert.True (f.CanFocus);
Assert.False (v1.CanFocus);
Assert.True (v2.CanFocus);
w.CanFocus = false;
Assert.False (w.CanFocus);
Assert.False (f.CanFocus);
Assert.False (v1.CanFocus);
Assert.False (v2.CanFocus);
w.CanFocus = true;
Assert.True (w.CanFocus);
Assert.True (f.CanFocus);
Assert.False (v1.CanFocus);
Assert.True (v2.CanFocus);
};
Application.Iteration += (s, a) => Application.RequestStop ();
Application.Run (t);
t.Dispose ();
Application.Shutdown ();
}
[Fact]
[AutoInitShutdown]
public void CanFocus_Faced_With_Container ()
{
var t = new Toplevel ();
var w = new Window ();
var f = new FrameView ();
var v = new View { CanFocus = true };
f.Add (v);
w.Add (f);
t.Add (w);
Assert.True (t.CanFocus);
Assert.True (w.CanFocus);
Assert.True (f.CanFocus);
Assert.True (v.CanFocus);
f.CanFocus = false;
Assert.False (f.CanFocus);
Assert.True (v.CanFocus);
v.CanFocus = false;
Assert.False (f.CanFocus);
Assert.False (v.CanFocus);
v.CanFocus = true;
Assert.False (f.CanFocus);
Assert.True (v.CanFocus);
t.Dispose ();
}
[Fact]
public void CanFocus_Faced_With_Container_After_Run ()
{
Application.Init (new FakeDriver ());
Toplevel t = new ();
var w = new Window ();
var f = new FrameView ();
var v = new View { CanFocus = true };
f.Add (v);
w.Add (f);
t.Add (w);
t.Ready += (s, e) =>
{
Assert.True (t.CanFocus);
Assert.True (w.CanFocus);
Assert.True (f.CanFocus);
Assert.True (v.CanFocus);
f.CanFocus = false;
Assert.False (f.CanFocus);
Assert.False (v.CanFocus);
v.CanFocus = false;
Assert.False (f.CanFocus);
Assert.False (v.CanFocus);
Assert.Throws<InvalidOperationException> (() => v.CanFocus = true);
Assert.False (f.CanFocus);
Assert.False (v.CanFocus);
f.CanFocus = true;
Assert.True (f.CanFocus);
Assert.True (v.CanFocus);
};
Application.Iteration += (s, a) => Application.RequestStop ();
Application.Run (t);
t.Dispose ();
Application.Shutdown ();
}
[Fact]
public void CanFocus_Faced_With_Container_Before_Run ()
{
Application.Init (new FakeDriver ());
Toplevel t = new ();
var w = new Window ();
var f = new FrameView ();
var v = new View { CanFocus = true };
f.Add (v);
w.Add (f);
t.Add (w);
Assert.True (t.CanFocus);
Assert.True (w.CanFocus);
Assert.True (f.CanFocus);
Assert.True (v.CanFocus);
f.CanFocus = false;
Assert.False (f.CanFocus);
Assert.True (v.CanFocus);
v.CanFocus = false;
Assert.False (f.CanFocus);
Assert.False (v.CanFocus);
v.CanFocus = true;
Assert.False (f.CanFocus);
Assert.True (v.CanFocus);
Application.Iteration += (s, a) => Application.RequestStop ();
Application.Run (t);
t.Dispose ();
Application.Shutdown ();
}
[Fact]
public void CanFocus_Set_Changes_TabIndex_And_TabStop ()
{
var r = new View ();
var v1 = new View { Text = "1" };
var v2 = new View { Text = "2" };
var v3 = new View { Text = "3" };
r.Add (v1, v2, v3);
v2.CanFocus = true;
Assert.Equal (r.TabIndexes.IndexOf (v2), v2.TabIndex);
Assert.Equal (0, v2.TabIndex);
Assert.True (v2.TabStop);
v1.CanFocus = true;
Assert.Equal (r.TabIndexes.IndexOf (v1), v1.TabIndex);
Assert.Equal (1, v1.TabIndex);
Assert.True (v1.TabStop);
v1.TabIndex = 2;
Assert.Equal (r.TabIndexes.IndexOf (v1), v1.TabIndex);
Assert.Equal (1, v1.TabIndex);
v3.CanFocus = true;
Assert.Equal (r.TabIndexes.IndexOf (v1), v1.TabIndex);
Assert.Equal (1, v1.TabIndex);
Assert.Equal (r.TabIndexes.IndexOf (v3), v3.TabIndex);
Assert.Equal (2, v3.TabIndex);
Assert.True (v3.TabStop);
v2.CanFocus = false;
Assert.Equal (r.TabIndexes.IndexOf (v1), v1.TabIndex);
Assert.Equal (1, v1.TabIndex);
Assert.True (v1.TabStop);
Assert.NotEqual (r.TabIndexes.IndexOf (v2), v2.TabIndex);
Assert.Equal (-1, v2.TabIndex);
Assert.False (v2.TabStop);
Assert.Equal (r.TabIndexes.IndexOf (v3), v3.TabIndex);
Assert.Equal (2, v3.TabIndex);
Assert.True (v3.TabStop);
r.Dispose ();
}
[Fact]
[AutoInitShutdown]
public void CanFocus_Sets_To_False_Does_Not_Sets_HasFocus_To_True ()
{
var view = new View { CanFocus = true };
var win = new Window { Width = Dim.Fill (), Height = Dim.Fill () };
win.Add (view);
var top = new Toplevel ();
top.Add (win);
Application.Begin (top);
Assert.True (view.CanFocus);
Assert.True (view.HasFocus);
view.CanFocus = false;
Assert.False (view.CanFocus);
Assert.False (view.HasFocus);
Assert.Null (Application.Current.Focused);
Assert.Null (Application.Current.MostFocused);
}
[Fact]
[AutoInitShutdown]
public void CanFocus_Sets_To_False_On_Single_View_Focus_View_On_Another_Toplevel ()
{
var view1 = new View { Id = "view1", Width = 10, Height = 1, CanFocus = true };
var win1 = new Window { Id = "win1", Width = Dim.Percent (50), Height = Dim.Fill () };
win1.Add (view1);
var view2 = new View { Id = "view2", Width = 20, Height = 2, CanFocus = true };
var win2 = new Window { Id = "win2", X = Pos.Right (win1), Width = Dim.Fill (), Height = Dim.Fill () };
win2.Add (view2);
var top = new Toplevel ();
top.Add (win1, win2);
Application.Begin (top);
Assert.True (view1.CanFocus);
Assert.True (view1.HasFocus);
Assert.True (view2.CanFocus);
Assert.False (view2.HasFocus); // Only one of the most focused toplevels view can have focus
Assert.True (top.NewKeyDownEvent (Key.Tab));
Assert.True (view1.CanFocus);
Assert.False (view1.HasFocus); // Only one of the most focused toplevels view can have focus
Assert.True (view2.CanFocus);
Assert.True (view2.HasFocus);
Assert.True (top.NewKeyDownEvent (Key.Tab));
Assert.True (view1.CanFocus);
Assert.True (view1.HasFocus);
Assert.True (view2.CanFocus);
Assert.False (view2.HasFocus); // Only one of the most focused toplevels view can have focus
view1.CanFocus = false;
Assert.False (view1.CanFocus);
Assert.False (view1.HasFocus);
Assert.True (view2.CanFocus);
Assert.True (view2.HasFocus);
Assert.Equal (win2, Application.Current.Focused);
Assert.Equal (view2, Application.Current.MostFocused);
}
[Fact]
[AutoInitShutdown]
public void CanFocus_Sets_To_False_On_Toplevel_Focus_View_On_Another_Toplevel ()
{
var view1 = new View { Id = "view1", Width = 10, Height = 1, CanFocus = true };
var win1 = new Window { Id = "win1", Width = Dim.Percent (50), Height = Dim.Fill () };
win1.Add (view1);
var view2 = new View { Id = "view2", Width = 20, Height = 2, CanFocus = true };
var win2 = new Window { Id = "win2", X = Pos.Right (win1), Width = Dim.Fill (), Height = Dim.Fill () };
win2.Add (view2);
var top = new Toplevel ();
top.Add (win1, win2);
Application.Begin (top);
Assert.True (view1.CanFocus);
Assert.True (view1.HasFocus);
Assert.True (view2.CanFocus);
Assert.False (view2.HasFocus); // Only one of the most focused toplevels view can have focus
Assert.True (top.NewKeyDownEvent (Key.Tab.WithCtrl));
Assert.True (view1.CanFocus);
Assert.False (view1.HasFocus); // Only one of the most focused toplevels view can have focus
Assert.True (view2.CanFocus);
Assert.True (view2.HasFocus);
Assert.True (top.NewKeyDownEvent (Key.Tab.WithCtrl));
Assert.True (view1.CanFocus);
Assert.True (view1.HasFocus);
Assert.True (view2.CanFocus);
Assert.False (view2.HasFocus); // Only one of the most focused toplevels view can have focus
win1.CanFocus = false;
Assert.False (view1.CanFocus);
Assert.False (view1.HasFocus);
Assert.False (win1.CanFocus);
Assert.False (win1.HasFocus);
Assert.True (view2.CanFocus);
Assert.True (view2.HasFocus);
Assert.Equal (win2, Application.Current.Focused);
Assert.Equal (view2, Application.Current.MostFocused);
}
[Fact]
[AutoInitShutdown]
public void CanFocus_Sets_To_False_With_Two_Views_Focus_Another_View_On_The_Same_Toplevel ()
{
var view1 = new View { Id = "view1", Width = 10, Height = 1, CanFocus = true };
var view12 = new View
{
Id = "view12",
Y = 5,
Width = 10,
Height = 1,
CanFocus = true
};
var win1 = new Window { Id = "win1", Width = Dim.Percent (50), Height = Dim.Fill () };
win1.Add (view1, view12);
var view2 = new View { Id = "view2", Width = 20, Height = 2, CanFocus = true };
var win2 = new Window { Id = "win2", X = Pos.Right (win1), Width = Dim.Fill (), Height = Dim.Fill () };
win2.Add (view2);
var top = new Toplevel ();
top.Add (win1, win2);
Application.Begin (top);
Assert.True (view1.CanFocus);
Assert.True (view1.HasFocus);
Assert.True (view2.CanFocus);
Assert.False (view2.HasFocus); // Only one of the most focused toplevels view can have focus
Assert.True (top.NewKeyDownEvent (Key.Tab.WithCtrl));
Assert.True (top.NewKeyDownEvent (Key.Tab.WithCtrl));
Assert.True (view1.CanFocus);
Assert.False (view1.HasFocus); // Only one of the most focused toplevels view can have focus
Assert.True (view2.CanFocus);
Assert.True (view2.HasFocus);
Assert.True (top.NewKeyDownEvent (Key.Tab.WithCtrl));
Assert.True (view1.CanFocus);
Assert.True (view1.HasFocus);
Assert.True (view2.CanFocus);
Assert.False (view2.HasFocus); // Only one of the most focused toplevels view can have focus
view1.CanFocus = false;
Assert.False (view1.CanFocus);
Assert.False (view1.HasFocus);
Assert.True (view2.CanFocus);
Assert.False (view2.HasFocus);
Assert.Equal (win1, Application.Current.Focused);
Assert.Equal (view12, Application.Current.MostFocused);
}
[Fact]
[AutoInitShutdown]
public void Enabled_False_Sets_HasFocus_To_False ()
{
var wasClicked = false;
var view = new Button { Text = "Click Me" };
view.Accept += (s, e) => wasClicked = !wasClicked;
view.NewKeyDownEvent (Key.Space);
Assert.True (wasClicked);
view.NewMouseEvent (new MouseEvent { Flags = MouseFlags.Button1Clicked });
Assert.False (wasClicked);
Assert.True (view.Enabled);
Assert.True (view.CanFocus);
Assert.True (view.HasFocus);
view.Enabled = false;
view.NewKeyDownEvent (Key.Space);
Assert.False (wasClicked);
view.NewMouseEvent (new MouseEvent { Flags = MouseFlags.Button1Clicked });
Assert.False (wasClicked);
Assert.False (view.Enabled);
Assert.True (view.CanFocus);
Assert.False (view.HasFocus);
view.SetFocus ();
Assert.False (view.HasFocus);
}
[Fact]
[AutoInitShutdown]
public void Enabled_Sets_Also_Sets_Subviews ()
{
var wasClicked = false;
var button = new Button { Text = "Click Me" };
button.IsDefault = true;
button.Accept += (s, e) => wasClicked = !wasClicked;
var win = new Window { Width = Dim.Fill (), Height = Dim.Fill () };
win.Add (button);
var top = new Toplevel ();
top.Add (win);
var iterations = 0;
Application.Iteration += (s, a) =>
{
iterations++;
win.NewKeyDownEvent (Key.Enter);
Assert.True (wasClicked);
button.NewMouseEvent (new MouseEvent { Flags = MouseFlags.Button1Clicked });
Assert.False (wasClicked);
Assert.True (button.Enabled);
Assert.True (button.CanFocus);
Assert.True (button.HasFocus);
Assert.True (win.Enabled);
Assert.True (win.CanFocus);
Assert.True (win.HasFocus);
win.Enabled = false;
button.NewKeyDownEvent (Key.Enter);
Assert.False (wasClicked);
button.NewMouseEvent (new MouseEvent { Flags = MouseFlags.Button1Clicked });
Assert.False (wasClicked);
Assert.False (button.Enabled);
Assert.True (button.CanFocus);
Assert.False (button.HasFocus);
Assert.False (win.Enabled);
Assert.True (win.CanFocus);
Assert.False (win.HasFocus);
button.SetFocus ();
Assert.False (button.HasFocus);
Assert.False (win.HasFocus);
win.SetFocus ();
Assert.False (button.HasFocus);
Assert.False (win.HasFocus);
win.Enabled = true;
win.FocusFirst ();
Assert.True (button.HasFocus);
Assert.True (win.HasFocus);
Application.RequestStop ();
};
Application.Run (top);
Assert.Equal (1, iterations);
}
[Fact]
public void FocusNearestView_Ensure_Focus_Ordered ()
{
var top = new Toplevel ();
var win = new Window ();
var winSubview = new View { CanFocus = true, Text = "WindowSubview" };
win.Add (winSubview);
top.Add (win);
var frm = new FrameView ();
var frmSubview = new View { CanFocus = true, Text = "FrameSubview" };
frm.Add (frmSubview);
top.Add (frm);
top.NewKeyDownEvent (Key.Tab);
Assert.Equal ("WindowSubview", top.MostFocused.Text);
top.NewKeyDownEvent (Key.Tab);
Assert.Equal ("FrameSubview", top.MostFocused.Text);
top.NewKeyDownEvent (Key.Tab);
Assert.Equal ("WindowSubview", top.MostFocused.Text);
top.NewKeyDownEvent (Key.Tab.WithShift);
Assert.Equal ("FrameSubview", top.MostFocused.Text);
top.NewKeyDownEvent (Key.Tab.WithShift);
Assert.Equal ("WindowSubview", top.MostFocused.Text);
top.Dispose ();
}
[Fact]
[AutoInitShutdown]
public void FocusNext_Does_Not_Throws_If_A_View_Was_Removed_From_The_Collection ()
{
Toplevel top1 = new ();
var view1 = new View { Id = "view1", Width = 10, Height = 5, CanFocus = true };
var top2 = new Toplevel { Id = "top2", Y = 1, Width = 10, Height = 5 };
var view2 = new View
{
Id = "view2",
Y = 1,
Width = 10,
Height = 5,
CanFocus = true
};
View view3 = null;
var removed = false;
view2.Enter += (s, e) =>
{
if (!removed)
{
removed = true;
view3 = new View { Id = "view3", Y = 1, Width = 10, Height = 5 };
Application.Current.Add (view3);
Application.Current.BringSubviewToFront (view3);
Assert.False (view3.HasFocus);
}
};
view2.Leave += (s, e) =>
{
Application.Current.Remove (view3);
view3.Dispose ();
view3 = null;
};
top2.Add (view2);
top1.Add (view1, top2);
Application.Begin (top1);
Assert.True (top1.HasFocus);
Assert.True (view1.HasFocus);
Assert.False (view2.HasFocus);
Assert.False (removed);
Assert.Null (view3);
Assert.True (top1.NewKeyDownEvent (Key.Tab.WithCtrl));
Assert.True (top1.HasFocus);
Assert.False (view1.HasFocus);
Assert.True (view2.HasFocus);
Assert.True (removed);
Assert.NotNull (view3);
Exception exception =
Record.Exception (() => top1.NewKeyDownEvent (Key.Tab.WithCtrl));
Assert.Null (exception);
Assert.True (removed);
Assert.Null (view3);
}
[Fact]
[AutoInitShutdown]
public void HotKey_Will_Invoke_KeyPressed_Only_For_The_MostFocused_With_Top_KeyPress_Event ()
{
var sbQuiting = false;
var tfQuiting = false;
var topQuiting = false;
var sb = new StatusBar (
new StatusItem []
{
new (
KeyCode.CtrlMask | KeyCode.Q,
"~^Q~ Quit",
() => sbQuiting = true
)
}
);
var tf = new TextField ();
tf.KeyDown += Tf_KeyPressed;
void Tf_KeyPressed (object sender, Key obj)
{
if (obj.KeyCode == (KeyCode.Q | KeyCode.CtrlMask))
{
obj.Handled = tfQuiting = true;
}
}
var win = new Window ();
win.Add (sb, tf);
Toplevel top = new ();
top.KeyDown += Top_KeyPress;
void Top_KeyPress (object sender, Key obj)
{
if (obj.KeyCode == (KeyCode.Q | KeyCode.CtrlMask))
{
obj.Handled = topQuiting = true;
}
}
top.Add (win);
Application.Begin (top);
Assert.False (sbQuiting);
Assert.False (tfQuiting);
Assert.False (topQuiting);
Application.Driver.SendKeys ('Q', ConsoleKey.Q, false, false, true);
Assert.False (sbQuiting);
Assert.True (tfQuiting);
Assert.False (topQuiting);
#if BROKE_WITH_2927
tf.KeyPressed -= Tf_KeyPress;
tfQuiting = false;
Application.Driver.SendKeys ('q', ConsoleKey.Q, false, false, true);
Application.MainLoop.RunIteration ();
Assert.True (sbQuiting);
Assert.False (tfQuiting);
Assert.False (topQuiting);
sb.RemoveItem (0);
sbQuiting = false;
Application.Driver.SendKeys ('q', ConsoleKey.Q, false, false, true);
Application.MainLoop.RunIteration ();
Assert.False (sbQuiting);
Assert.False (tfQuiting);
// This test is now invalid because `win` is focused, so it will receive the keypress
Assert.True (topQuiting);
#endif
}
[Fact]
[AutoInitShutdown]
public void HotKey_Will_Invoke_KeyPressed_Only_For_The_MostFocused_Without_Top_KeyPress_Event ()
{
var sbQuiting = false;
var tfQuiting = false;
var sb = new StatusBar (
new StatusItem []
{
new (
KeyCode.CtrlMask | KeyCode.Q,
"~^Q~ Quit",
() => sbQuiting = true
)
}
);
var tf = new TextField ();
tf.KeyDown += Tf_KeyPressed;
void Tf_KeyPressed (object sender, Key obj)
{
if (obj.KeyCode == (KeyCode.Q | KeyCode.CtrlMask))
{
obj.Handled = tfQuiting = true;
}
}
var win = new Window ();
win.Add (sb, tf);
Toplevel top = new ();
top.Add (win);
Application.Begin (top);
Assert.False (sbQuiting);
Assert.False (tfQuiting);
Application.Driver.SendKeys ('Q', ConsoleKey.Q, false, false, true);
Assert.False (sbQuiting);
Assert.True (tfQuiting);
tf.KeyDown -= Tf_KeyPressed;
tfQuiting = false;
Application.Driver.SendKeys ('Q', ConsoleKey.Q, false, false, true);
Application.MainLoop.RunIteration ();
#if BROKE_WITH_2927
Assert.True (sbQuiting);
Assert.False (tfQuiting);
#endif
}
[Fact]
public void Navigation_With_Null_Focused_View ()
{
// Non-regression test for #882 (NullReferenceException during keyboard navigation when Focused is null)
Application.Init (new FakeDriver ());
var top = new Toplevel ();
top.Ready += (s, e) => { Assert.Null (top.Focused); };
// Keyboard navigation with tab
Console.MockKeyPresses.Push (new ConsoleKeyInfo ('\t', ConsoleKey.Tab, false, false, false));
Application.Iteration += (s, a) => Application.RequestStop ();
Application.Run (top);
top.Dispose ();
Application.Shutdown ();
}
[Fact]
[AutoInitShutdown]
public void Remove_Does_Not_Change_Focus ()
{
var top = new Toplevel ();
Assert.True (top.CanFocus);
Assert.False (top.HasFocus);
var container = new View { Width = 10, Height = 10 };
var leave = false;
container.Leave += (s, e) => leave = true;
Assert.False (container.CanFocus);
var child = new View { Width = Dim.Fill (), Height = Dim.Fill (), CanFocus = true };
container.Add (child);
Assert.True (container.CanFocus);
Assert.False (container.HasFocus);
Assert.True (child.CanFocus);
Assert.False (child.HasFocus);
top.Add (container);
Application.Begin (top);
Assert.True (top.CanFocus);
Assert.True (top.HasFocus);
Assert.True (container.CanFocus);
Assert.True (container.HasFocus);
Assert.True (child.CanFocus);
Assert.True (child.HasFocus);
container.Remove (child);
child.Dispose ();
child = null;
Assert.True (top.HasFocus);
Assert.True (container.CanFocus);
Assert.True (container.HasFocus);
Assert.Null (child);
Assert.False (leave);
}
[Fact]
[AutoInitShutdown]
public void ScreenToView_ViewToScreen_FindDeepestView_Full_Top ()
{
Toplevel top = new ();
top.BorderStyle = LineStyle.Single;
var view = new View
{
X = 3,
Y = 2,
Width = 10,
Height = 1,
Text = "0123456789"
};
top.Add (view);
Application.Begin (top);
Assert.Equal (Application.Current, top);
Assert.Equal (new Rectangle (0, 0, 80, 25), new Rectangle (0, 0, View.Driver.Cols, View.Driver.Rows));
Assert.Equal (new Rectangle (0, 0, View.Driver.Cols, View.Driver.Rows), top.Frame);
Assert.Equal (new Rectangle (0, 0, 80, 25), top.Frame);
((FakeDriver)Application.Driver).SetBufferSize (20, 10);
Assert.Equal (new Rectangle (0, 0, View.Driver.Cols, View.Driver.Rows), top.Frame);
Assert.Equal (new Rectangle (0, 0, 20, 10), top.Frame);
_ = TestHelpers.AssertDriverContentsWithFrameAre (
@"
┌──────────────────┐
│ │
│ │
│ 0123456789 │
│ │
│ │
│ │
│ │
│ │
└──────────────────┘",
_output
);
// top
Assert.Equal (Point.Empty, top.ScreenToFrame (0, 0));
Rectangle screen = top.Margin.ViewportToScreen (new (0, 0, 0, 0));
Assert.Equal (0, screen.X);
Assert.Equal (0, screen.Y);
screen = top.Border.ViewportToScreen (new (0, 0, 0, 0));
Assert.Equal (0, screen.X);
Assert.Equal (0, screen.Y);
screen = top.Padding.ViewportToScreen (new (0, 0, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
screen = top.ViewportToScreen (new (0, 0, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
screen = top.ViewportToScreen (new (-1, -1, 0, 0));
Assert.Equal (0, screen.X);
Assert.Equal (0, screen.Y);
var found = View.FindDeepestView (top, 0, 0);
Assert.Equal (top.Border, found);
Assert.Equal (0, found.Frame.X);
Assert.Equal (0, found.Frame.Y);
Assert.Equal (new Point (3, 2), top.ScreenToFrame (3, 2));
screen = top.ViewportToScreen (new (3, 2, 0, 0));
Assert.Equal (4, screen.X);
Assert.Equal (3, screen.Y);
found = View.FindDeepestView (top, screen.X, screen.Y);
Assert.Equal (view, found);
//Assert.Equal (0, found.FrameToScreen ().X);
//Assert.Equal (0, found.FrameToScreen ().Y);
found = View.FindDeepestView (top, 3, 2);
Assert.Equal (top, found);
//Assert.Equal (3, found.FrameToScreen ().X);
//Assert.Equal (2, found.FrameToScreen ().Y);
Assert.Equal (new Point (13, 2), top.ScreenToFrame (13, 2));
screen = top.ViewportToScreen (new (12, 2, 0, 0));
Assert.Equal (13, screen.X);
Assert.Equal (3, screen.Y);
found = View.FindDeepestView (top, screen.X, screen.Y);
Assert.Equal (view, found);
//Assert.Equal (9, found.FrameToScreen ().X);
//Assert.Equal (0, found.FrameToScreen ().Y);
screen = top.ViewportToScreen (new (13, 2, 0, 0));
Assert.Equal (14, screen.X);
Assert.Equal (3, screen.Y);
found = View.FindDeepestView (top, 13, 2);
Assert.Equal (top, found);
//Assert.Equal (13, found.FrameToScreen ().X);
//Assert.Equal (2, found.FrameToScreen ().Y);
Assert.Equal (new Point (14, 3), top.ScreenToFrame (14, 3));
screen = top.ViewportToScreen (new (14, 3, 0, 0));
Assert.Equal (15, screen.X);
Assert.Equal (4, screen.Y);
found = View.FindDeepestView (top, 14, 3);
Assert.Equal (top, found);
//Assert.Equal (14, found.FrameToScreen ().X);
//Assert.Equal (3, found.FrameToScreen ().Y);
// view
Assert.Equal (new Point (-4, -3), view.ScreenToFrame (0, 0));
screen = view.Margin.ViewportToScreen (new (-3, -2, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
screen = view.Border.ViewportToScreen (new (-3, -2, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
screen = view.Padding.ViewportToScreen (new (-3, -2, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
screen = view.ViewportToScreen (new (-3, -2, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
screen = view.ViewportToScreen (new (-4, -3, 0, 0));
Assert.Equal (0, screen.X);
Assert.Equal (0, screen.Y);
found = View.FindDeepestView (top, 0, 0);
Assert.Equal (top.Border, found);
Assert.Equal (new Point (-1, -1), view.ScreenToFrame (3, 2));
screen = view.ViewportToScreen (new (0, 0, 0, 0));
Assert.Equal (4, screen.X);
Assert.Equal (3, screen.Y);
found = View.FindDeepestView (top, 4, 3);
Assert.Equal (view, found);
Assert.Equal (new Point (9, -1), view.ScreenToFrame (13, 2));
screen = view.ViewportToScreen (new (10, 0, 0, 0));
Assert.Equal (14, screen.X);
Assert.Equal (3, screen.Y);
found = View.FindDeepestView (top, 14, 3);
Assert.Equal (top, found);
Assert.Equal (new Point (10, 0), view.ScreenToFrame (14, 3));
screen = view.ViewportToScreen (new (11, 1, 0, 0));
Assert.Equal (15, screen.X);
Assert.Equal (4, screen.Y);
found = View.FindDeepestView (top, 15, 4);
Assert.Equal (top, found);
}
[Fact]
[AutoInitShutdown]
public void ScreenToView_ViewToScreen_FindDeepestView_Smaller_Top ()
{
var top = new Toplevel
{
X = 3,
Y = 2,
Width = 20,
Height = 10,
BorderStyle = LineStyle.Single
};
var view = new View
{
X = 3,
Y = 2,
Width = 10,
Height = 1,
Text = "0123456789"
};
top.Add (view);
Application.Begin (top);
Assert.Equal (Application.Current, top);
Assert.Equal (new Rectangle (0, 0, 80, 25), new Rectangle (0, 0, View.Driver.Cols, View.Driver.Rows));
Assert.NotEqual (new Rectangle (0, 0, View.Driver.Cols, View.Driver.Rows), top.Frame);
Assert.Equal (new Rectangle (3, 2, 20, 10), top.Frame);
((FakeDriver)Application.Driver).SetBufferSize (30, 20);
Assert.Equal (new Rectangle (0, 0, 30, 20), new Rectangle (0, 0, View.Driver.Cols, View.Driver.Rows));
Assert.NotEqual (new Rectangle (0, 0, View.Driver.Cols, View.Driver.Rows), top.Frame);
Assert.Equal (new Rectangle (3, 2, 20, 10), top.Frame);
Rectangle frame = TestHelpers.AssertDriverContentsWithFrameAre (
@"
┌──────────────────┐
│ │
│ │
│ 0123456789 │
│ │
│ │
│ │
│ │
│ │
└──────────────────┘",
_output
);
// mean the output started at col 3 and line 2
// which result with a width of 23 and a height of 10 on the output
Assert.Equal (new Rectangle (3, 2, 23, 10), frame);
// top
Assert.Equal (new Point (-3, -2), top.ScreenToFrame (0, 0));
Rectangle screen = top.Margin.ViewportToScreen (new (-3, -2, 0, 0));
Assert.Equal (0, screen.X);
Assert.Equal (0, screen.Y);
screen = top.Border.ViewportToScreen (new (-3, -2, 0, 0));
Assert.Equal (0, screen.X);
Assert.Equal (0, screen.Y);
screen = top.Padding.ViewportToScreen (new (-3, -2, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
screen = top.ViewportToScreen (new (-3, -2, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
screen = top.ViewportToScreen (new (-4, -3, 0, 0));
Assert.Equal (0, screen.X);
Assert.Equal (0, screen.Y);
var found = View.FindDeepestView (top, -4, -3);
Assert.Null (found);
Assert.Equal (Point.Empty, top.ScreenToFrame (3, 2));
screen = top.ViewportToScreen (new (0, 0, 0, 0));
Assert.Equal (4, screen.X);
Assert.Equal (3, screen.Y);
Assert.Equal (top.Border, View.FindDeepestView (top, 3, 2));
//Assert.Equal (0, found.FrameToScreen ().X);
//Assert.Equal (0, found.FrameToScreen ().Y);
Assert.Equal (new Point (10, 0), top.ScreenToFrame (13, 2));
screen = top.ViewportToScreen (new (10, 0, 0, 0));
Assert.Equal (14, screen.X);
Assert.Equal (3, screen.Y);
Assert.Equal (top.Border, View.FindDeepestView (top, 13, 2));
//Assert.Equal (10, found.FrameToScreen ().X);
//Assert.Equal (0, found.FrameToScreen ().Y);
Assert.Equal (new Point (11, 1), top.ScreenToFrame (14, 3));
screen = top.ViewportToScreen (new (11, 1, 0, 0));
Assert.Equal (15, screen.X);
Assert.Equal (4, screen.Y);
Assert.Equal (top, View.FindDeepestView (top, 14, 3));
// view
Assert.Equal (new Point (-7, -5), view.ScreenToFrame (0, 0));
screen = view.Margin.ViewportToScreen (new (-6, -4, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
screen = view.Border.ViewportToScreen (new (-6, -4, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
screen = view.Padding.ViewportToScreen (new (-6, -4, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
screen = view.ViewportToScreen (new (-6, -4, 0, 0));
Assert.Equal (1, screen.X);
Assert.Equal (1, screen.Y);
Assert.Null (View.FindDeepestView (top, 1, 1));
Assert.Equal (new Point (-4, -3), view.ScreenToFrame (3, 2));
screen = view.ViewportToScreen (new (-3, -2, 0, 0));
Assert.Equal (4, screen.X);
Assert.Equal (3, screen.Y);
Assert.Equal (top, View.FindDeepestView (top, 4, 3));
Assert.Equal (new Point (-1, -1), view.ScreenToFrame (6, 4));
screen = view.ViewportToScreen (new (0, 0, 0, 0));
Assert.Equal (7, screen.X);
Assert.Equal (5, screen.Y);
Assert.Equal (view, View.FindDeepestView (top, 7, 5));
Assert.Equal (new Point (6, -1), view.ScreenToFrame (13, 4));
screen = view.ViewportToScreen (new (7, 0, 0, 0));
Assert.Equal (14, screen.X);
Assert.Equal (5, screen.Y);
Assert.Equal (view, View.FindDeepestView (top, 14, 5));
Assert.Equal (new Point (7, -2), view.ScreenToFrame (14, 3));
screen = view.ViewportToScreen (new (8, -1, 0, 0));
Assert.Equal (15, screen.X);
Assert.Equal (4, screen.Y);
Assert.Equal (top, View.FindDeepestView (top, 15, 4));
Assert.Equal (new Point (16, -2), view.ScreenToFrame (23, 3));
screen = view.ViewportToScreen (new (17, -1, 0, 0));
Assert.Equal (24, screen.X);
Assert.Equal (4, screen.Y);
Assert.Null (View.FindDeepestView (top, 24, 4));
}
[Fact]
public void SendSubviewBackwards_Subviews_vs_TabIndexes ()
{
var r = new View ();
var v1 = new View { CanFocus = true };
var v2 = new View { CanFocus = true };
var v3 = new View { CanFocus = true };
r.Add (v1, v2, v3);
r.SendSubviewBackwards (v3);
Assert.True (r.Subviews.IndexOf (v1) == 0);
Assert.True (r.Subviews.IndexOf (v2) == 2);
Assert.True (r.Subviews.IndexOf (v3) == 1);
Assert.True (r.TabIndexes.IndexOf (v1) == 0);
Assert.True (r.TabIndexes.IndexOf (v2) == 1);
Assert.True (r.TabIndexes.IndexOf (v3) == 2);
r.Dispose ();
}
[Fact]
public void SendSubviewToBack_Subviews_vs_TabIndexes ()
{
var r = new View ();
var v1 = new View { CanFocus = true };
var v2 = new View { CanFocus = true };
var v3 = new View { CanFocus = true };
r.Add (v1, v2, v3);
r.SendSubviewToBack (v3);
Assert.True (r.Subviews.IndexOf (v1) == 1);
Assert.True (r.Subviews.IndexOf (v2) == 2);
Assert.True (r.Subviews.IndexOf (v3) == 0);
Assert.True (r.TabIndexes.IndexOf (v1) == 0);
Assert.True (r.TabIndexes.IndexOf (v2) == 1);
Assert.True (r.TabIndexes.IndexOf (v3) == 2);
r.Dispose ();
}
[Fact]
[AutoInitShutdown]
public void SetFocus_View_With_Null_Superview_Does_Not_Throw_Exception ()
{
var top = new Toplevel ();
Assert.True (top.CanFocus);
Assert.False (top.HasFocus);
Exception exception = Record.Exception (top.SetFocus);
Assert.Null (exception);
Assert.True (top.CanFocus);
Assert.True (top.HasFocus);
}
[Fact]
[AutoInitShutdown]
public void SetHasFocus_Do_Not_Throws_If_OnLeave_Remove_Focused_Changing_To_Null ()
{
var view1Leave = false;
var subView1Leave = false;
var subView1subView1Leave = false;
Toplevel top = new ();
var view1 = new View { CanFocus = true };
var subView1 = new View { CanFocus = true };
var subView1subView1 = new View { CanFocus = true };
view1.Leave += (s, e) => { view1Leave = true; };
subView1.Leave += (s, e) =>
{
subView1.Remove (subView1subView1);
subView1Leave = true;
};
view1.Add (subView1);
subView1subView1.Leave += (s, e) =>
{
// This is never invoked
subView1subView1Leave = true;
};
subView1.Add (subView1subView1);
var view2 = new View { CanFocus = true };
top.Add (view1, view2);
RunState rs = Application.Begin (top);
view2.SetFocus ();
Assert.True (view1Leave);
Assert.True (subView1Leave);
Assert.False (subView1subView1Leave);
Application.End (rs);
subView1subView1.Dispose ();
}
[Fact]
public void Subviews_TabIndexes_AreEqual ()
{
var r = new View ();
var v1 = new View { CanFocus = true };
var v2 = new View { CanFocus = true };
var v3 = new View { CanFocus = true };
r.Add (v1, v2, v3);
Assert.True (r.Subviews.IndexOf (v1) == 0);
Assert.True (r.Subviews.IndexOf (v2) == 1);
Assert.True (r.Subviews.IndexOf (v3) == 2);
Assert.True (r.TabIndexes.IndexOf (v1) == 0);
Assert.True (r.TabIndexes.IndexOf (v2) == 1);
Assert.True (r.TabIndexes.IndexOf (v3) == 2);
Assert.Equal (r.Subviews.IndexOf (v1), r.TabIndexes.IndexOf (v1));
Assert.Equal (r.Subviews.IndexOf (v2), r.TabIndexes.IndexOf (v2));
Assert.Equal (r.Subviews.IndexOf (v3), r.TabIndexes.IndexOf (v3));
r.Dispose ();
}
[Fact]
public void TabIndex_Set_CanFocus_False ()
{
var r = new View ();
var v1 = new View { CanFocus = true };
var v2 = new View { CanFocus = true };
var v3 = new View { CanFocus = true };
r.Add (v1, v2, v3);
v1.CanFocus = false;
v1.TabIndex = 0;
Assert.True (r.Subviews.IndexOf (v1) == 0);
Assert.True (r.TabIndexes.IndexOf (v1) == 0);
Assert.Equal (-1, v1.TabIndex);
r.Dispose ();
}
[Fact]
public void TabIndex_Set_CanFocus_False_To_True ()
{
var r = new View ();
var v1 = new View ();
var v2 = new View { CanFocus = true };
var v3 = new View { CanFocus = true };
r.Add (v1, v2, v3);
v1.CanFocus = true;
v1.TabIndex = 1;
Assert.True (r.Subviews.IndexOf (v1) == 0);
Assert.True (r.TabIndexes.IndexOf (v1) == 1);
r.Dispose ();
}
[Fact]
public void TabIndex_Set_CanFocus_HigherValues ()
{
var r = new View ();
var v1 = new View { CanFocus = true };
var v2 = new View { CanFocus = true };
var v3 = new View { CanFocus = true };
r.Add (v1, v2, v3);
v1.TabIndex = 3;
Assert.True (r.Subviews.IndexOf (v1) == 0);
Assert.True (r.TabIndexes.IndexOf (v1) == 2);
r.Dispose ();
}
[Fact]
public void TabIndex_Set_CanFocus_LowerValues ()
{
var r = new View ();
var v1 = new View { CanFocus = true };
var v2 = new View { CanFocus = true };
var v3 = new View { CanFocus = true };
r.Add (v1, v2, v3);
v1.TabIndex = -1;
Assert.True (r.Subviews.IndexOf (v1) == 0);
Assert.True (r.TabIndexes.IndexOf (v1) == 0);
r.Dispose ();
}
[Fact]
public void TabIndex_Set_CanFocus_ValidValues ()
{
var r = new View ();
var v1 = new View { CanFocus = true };
var v2 = new View { CanFocus = true };
var v3 = new View { CanFocus = true };
r.Add (v1, v2, v3);
v1.TabIndex = 1;
Assert.True (r.Subviews.IndexOf (v1) == 0);
Assert.True (r.TabIndexes.IndexOf (v1) == 1);
v1.TabIndex = 2;
Assert.True (r.Subviews.IndexOf (v1) == 0);
Assert.True (r.TabIndexes.IndexOf (v1) == 2);
r.Dispose ();
}
[Fact]
public void TabIndex_Invert_Order ()
{
var r = new View ();
var v1 = new View () { Id = "1", CanFocus = true };
var v2 = new View () { Id = "2", CanFocus = true };
var v3 = new View () { Id = "3", CanFocus = true };
r.Add (v1, v2, v3);
v1.TabIndex = 2;
v2.TabIndex = 1;
v3.TabIndex = 0;
Assert.True (r.TabIndexes.IndexOf (v1) == 2);
Assert.True (r.TabIndexes.IndexOf (v2) == 1);
Assert.True (r.TabIndexes.IndexOf (v3) == 0);
Assert.True (r.Subviews.IndexOf (v1) == 0);
Assert.True (r.Subviews.IndexOf (v2) == 1);
Assert.True (r.Subviews.IndexOf (v3) == 2);
}
[Fact]
public void TabIndex_Invert_Order_Added_One_By_One_Does_Not_Do_What_Is_Expected ()
{
var r = new View ();
var v1 = new View () { Id = "1", CanFocus = true };
r.Add (v1);
v1.TabIndex = 2;
var v2 = new View () { Id = "2", CanFocus = true };
r.Add (v2);
v2.TabIndex = 1;
var v3 = new View () { Id = "3", CanFocus = true };
r.Add (v3);
v3.TabIndex = 0;
Assert.False (r.TabIndexes.IndexOf (v1) == 2);
Assert.True (r.TabIndexes.IndexOf (v1) == 1);
Assert.False (r.TabIndexes.IndexOf (v2) == 1);
Assert.True (r.TabIndexes.IndexOf (v2) == 2);
// Only the last is in the expected index
Assert.True (r.TabIndexes.IndexOf (v3) == 0);
Assert.True (r.Subviews.IndexOf (v1) == 0);
Assert.True (r.Subviews.IndexOf (v2) == 1);
Assert.True (r.Subviews.IndexOf (v3) == 2);
}
[Fact]
public void TabIndex_Invert_Order_Mixed ()
{
var r = new View ();
var vl1 = new View () { Id = "vl1" };
var v1 = new View () { Id = "v1", CanFocus = true };
var vl2 = new View () { Id = "vl2" };
var v2 = new View () { Id = "v2", CanFocus = true };
var vl3 = new View () { Id = "vl3" };
var v3 = new View () { Id = "v3", CanFocus = true };
r.Add (vl1, v1, vl2, v2, vl3, v3);
v1.TabIndex = 2;
v2.TabIndex = 1;
v3.TabIndex = 0;
Assert.True (r.TabIndexes.IndexOf (v1) == 4);
Assert.True (r.TabIndexes.IndexOf (v2) == 2);
Assert.True (r.TabIndexes.IndexOf (v3) == 0);
Assert.True (r.Subviews.IndexOf (v1) == 1);
Assert.True (r.Subviews.IndexOf (v2) == 3);
Assert.True (r.Subviews.IndexOf (v3) == 5);
}
[Fact]
public void TabStop_All_False_And_All_True_And_Changing_TabStop_Later ()
{
var r = new View ();
var v1 = new View { CanFocus = true, TabStop = false };
var v2 = new View { CanFocus = true, TabStop = false };
var v3 = new View { CanFocus = true, TabStop = false };
r.Add (v1, v2, v3);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
v1.TabStop = true;
r.FocusNext ();
Assert.True (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
v2.TabStop = true;
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.True (v2.HasFocus);
Assert.False (v3.HasFocus);
v3.TabStop = true;
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.True (v3.HasFocus);
r.Dispose ();
}
[Fact]
public void TabStop_All_True_And_Changing_CanFocus_Later ()
{
var r = new View ();
var v1 = new View ();
var v2 = new View ();
var v3 = new View ();
r.Add (v1, v2, v3);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
v1.CanFocus = true;
r.FocusNext ();
Assert.True (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
v2.CanFocus = true;
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.True (v2.HasFocus);
Assert.False (v3.HasFocus);
v3.CanFocus = true;
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.True (v3.HasFocus);
r.Dispose ();
}
[Fact]
public void TabStop_And_CanFocus_Are_All_True ()
{
var r = new View ();
var v1 = new View { CanFocus = true };
var v2 = new View { CanFocus = true };
var v3 = new View { CanFocus = true };
r.Add (v1, v2, v3);
r.FocusNext ();
Assert.True (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.True (v2.HasFocus);
Assert.False (v3.HasFocus);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.True (v3.HasFocus);
r.Dispose ();
}
[Fact]
public void TabStop_And_CanFocus_Mixed_And_BothFalse ()
{
var r = new View ();
var v1 = new View { CanFocus = true, TabStop = false };
var v2 = new View { CanFocus = false, TabStop = true };
var v3 = new View { CanFocus = false, TabStop = false };
r.Add (v1, v2, v3);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
r.Dispose ();
}
[Fact]
public void TabStop_Are_All_False_And_CanFocus_Are_All_True ()
{
var r = new View ();
var v1 = new View { CanFocus = true, TabStop = false };
var v2 = new View { CanFocus = true, TabStop = false };
var v3 = new View { CanFocus = true, TabStop = false };
r.Add (v1, v2, v3);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
r.Dispose ();
}
[Fact]
public void TabStop_Are_All_True_And_CanFocus_Are_All_False ()
{
var r = new View ();
var v1 = new View ();
var v2 = new View ();
var v3 = new View ();
r.Add (v1, v2, v3);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
r.FocusNext ();
Assert.False (v1.HasFocus);
Assert.False (v2.HasFocus);
Assert.False (v3.HasFocus);
r.Dispose ();
}
[Fact]
[AutoInitShutdown]
public void WindowDispose_CanFocusProblem ()
{
// Arrange
Application.Init ();
using var top = new Toplevel ();
using var view = new View { X = 0, Y = 1, Text = nameof (WindowDispose_CanFocusProblem) };
using var window = new Window ();
top.Add (window);
window.Add (view);
// Act
RunState rs = Application.Begin (top);
Application.End (rs);
top.Dispose ();
Application.Shutdown ();
// Assert does Not throw NullReferenceException
top.SetFocus ();
}
// View.Focused & View.MostFocused tests
// View.Focused - No subviews
[Fact, Trait("BUGBUG", "Fix in Issue #3444")]
public void Focused_NoSubviews ()
{
var view = new View ();
Assert.Null (view.Focused);
view.CanFocus = true;
view.SetFocus ();
Assert.True (view.HasFocus);
Assert.Null (view.Focused); // BUGBUG: Should be view
}
// View.MostFocused - No subviews
[Fact, Trait ("BUGBUG", "Fix in Issue #3444")]
public void Most_Focused_NoSubviews ()
{
var view = new View ();
Assert.Null (view.Focused);
view.CanFocus = true;
view.SetFocus ();
Assert.True (view.HasFocus);
Assert.Null (view.MostFocused); // BUGBUG: Should be view
}
}
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