feat(centralui): TreeView chevron accessible name + keyboard activation + a11y regression test (T36a)

2026-06-18 20:08:47 -04:00
parent 4d3cef18cb
commit 0449c473c1
2 changed files with 123 additions and 1 deletions
@@ -51,7 +51,15 @@ else
                @oncontextmenu="(e) => OnContextMenu(e, item)" @oncontextmenu:preventDefault="@(ContextMenu != null)" @oncontextmenu:stopPropagation="@(ContextMenu != null)">
                @if (isBranch)
                {
-                    <span class="tv-toggle" @onclick="() => ToggleExpand(key)" @onclick:stopPropagation><i class="bi bi-chevron-right"></i></span>
+                    <span class="tv-toggle"
+                          role="button"
+                          tabindex="0"
+                          aria-label="@((isExpanded ? "Collapse " : "Expand ") + KeyStr(key))"
+                          aria-expanded="@(isExpanded ? "true" : "false")"
+                          @onclick="() => ToggleExpand(key)"
+                          @onclick:stopPropagation
+                          @onkeydown="(e) => OnToggleKey(e, key)"
+                          @onkeydown:preventDefault><i class="bi bi-chevron-right"></i></span>
                }
                else
                {
@@ -276,6 +284,14 @@ else
        PersistExpandedState();
    }

+    private void OnToggleKey(KeyboardEventArgs e, object key)
+    {
+        if (e.Key == "Enter" || e.Key == " ")
+        {
+            ToggleExpand(key);
+        }
+    }
+
    private void PersistExpandedState()
    {
        if (StorageKey != null)