WIP

2025-12-30 17:57:57 +01:00 · 2024-08-17 08:49:24 -06:00
parent 42a9ecb151
commit 2375ee35a9
28 changed files with 1860 additions and 1312 deletions
--- a/UnitTests/View/Navigation/AddRemoveTests.cs
+++ b/UnitTests/View/Navigation/AddRemoveTests.cs
@@ -0,0 +1,140 @@
+using Xunit.Abstractions;
+
+namespace Terminal.Gui.ViewTests;
+
+public class AddRemoveNavigationTests (ITestOutputHelper _output) : TestsAllViews
+{
+  [Fact]
+    public void Add_Subview_Gets_Focus ()
+    {
+        View top = new View ()
+        {
+            Id = "top",
+            CanFocus = true
+        };
+
+        top.SetFocus ();
+        Assert.True (top.HasFocus);
+
+        int nEnter = 0;
+        View subView = new View ()
+        {
+            Id = "subView",
+            CanFocus = true
+        };
+        subView.Enter += (s, e) => nEnter++;
+
+        top.Add (subView);
+
+        Assert.True (top.HasFocus);
+        Assert.Equal (subView, top.GetFocused ());
+        Assert.True (subView.HasFocus);
+        Assert.Equal (1, nEnter);
+    }
+
+    [Fact]
+    public void Add_Subview_Deepest_Gets_Focus ()
+    {
+        View top = new View ()
+        {
+            Id = "top",
+            CanFocus = true
+        };
+
+        top.SetFocus ();
+        Assert.True (top.HasFocus);
+
+        View subView = new View ()
+        {
+            Id = "subView",
+            CanFocus = true
+        };
+
+        View subSubView = new View ()
+        {
+            Id = "subSubView",
+            CanFocus = true
+        };
+
+        subView.Add (subSubView);
+
+        top.Add (subView);
+
+        Assert.True (top.HasFocus);
+        Assert.Equal (subView, top.GetFocused ());
+        Assert.True (subView.HasFocus);
+        Assert.True (subSubView.HasFocus);
+    }
+
+    [Fact]
+    public void Remove_Focused_Subview_Keeps_Focus_And_SubView_Looses_Focus ()
+    {
+        View top = new View ()
+        {
+            Id = "top",
+            CanFocus = true
+        };
+
+        int nLeave = 0;
+
+        View subView = new View ()
+        {
+            Id = "subView",
+            CanFocus = true
+        };
+        subView.Leave += (s, e) => nLeave++;
+
+        top.Add (subView);
+
+        top.SetFocus ();
+        Assert.True (top.HasFocus);
+        Assert.Equal (subView, top.GetFocused ());
+        Assert.True (subView.HasFocus);
+
+        top.Remove (subView);
+        Assert.True (top.HasFocus);
+        Assert.Equal (null, top.GetFocused ());
+        Assert.False (subView.HasFocus);
+        Assert.Equal (1, nLeave);
+    }
+
+    [Fact]
+    public void Remove_Focused_Subview_Keeps_Focus_And_SubView_Looses_Focus_And_Next_Gets_Focus ()
+    {
+        View top = new View ()
+        {
+            Id = "top",
+            CanFocus = true
+        };
+
+        int nLeave1 = 0;
+
+        View subView1 = new View ()
+        {
+            Id = "subView1",
+            CanFocus = true
+        };
+        subView1.Leave += (s, e) => nLeave1++;
+
+        View subView2 = new View ()
+        {
+            Id = "subView2",
+            CanFocus = true
+        };
+        top.Add (subView1, subView2);
+
+        top.SetFocus ();
+        Assert.True (top.HasFocus);
+        Assert.Equal (subView1, top.GetFocused ());
+        Assert.True (subView1.HasFocus);
+        Assert.False (subView2.HasFocus);
+
+        top.Remove (subView1);
+        Assert.True (top.HasFocus);
+        Assert.True (subView2.HasFocus);
+        Assert.Equal (subView2, top.GetFocused ());
+        Assert.False (subView1.HasFocus);
+        Assert.Equal (1, nLeave1);
+    }
+
+}