fix(navbar_options): Apply attributes and theme

CHANGELOG.md

@@ -20,6 +20,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * The `.get_latest_stream_result()` method on `ui.MarkdownStream()` was deprecated in favor of the new `.latest_stream` property. Call `.result()` on the property to get the latest result, `.status` to check the status, and `.cancel()` to cancel the stream.
 
+* `ui.page_navbar()` and `ui.navset_bar()` now correctly apply `theme` and additional attributes from `navbar_options` created with `ui.navbar_options()`. (#1942)
+
 ### Bug fixes
 
 * Fixed an issue where the `<main>` areas of `ui.page_sidebar()` and `ui.page_navbar()` (with a `sidebar`) were made to be a fillable containers even when `fillable=False`. (#1816)
@@ -62,12 +64,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Breaking changes
 
-* The navbar-related style options of `ui.page_navbar()` and `ui.navset_bar()` have been consolidated into a single `navbar_options` argument that pairs with a new `ui.navbar_options()` helper. Using the direct `position`, `bg`, `inverse`, `collapsible`, and `underline` arguments will continue to work with a deprecation message.
+* The navbar-related style options of `ui.page_navbar()` and `ui.navset_bar()` have been consolidated into a single `navbar_options` argument that pairs with a new `ui.navbar_options()` helper. Using the direct `position`, `bg`, `inverse`, `collapsible`, and `underline` arguments will continue to work with a deprecation message. (#1822)
 
   Related to this change, `ui.navset_bar()` now defaults to using `underline=True` so that it uses the same set of default `ui.navbar_options()` as the page variant. In `ui.navbar_options()`, `inverse` is replaced by `theme`, which takes values `"light"` (dark text on a **light** background), `"dark"` (light text on a **dark** background), or `"auto"` (follow page settings).
 
-* The Shiny Core component `shiny.ui.Chat()` no longer has a `.ui()` method. This method
-was never intended to be used in Shiny Core (in that case, use `shiny.ui.chat_ui()`) to create the UI element. Note that the `shiny.express.ui.Chat()` class still has a `.ui()` method. (#1840)
+* The Shiny Core component `shiny.ui.Chat()` no longer has a `.ui()` method. This method was never intended to be used in Shiny Core (in that case, use `shiny.ui.chat_ui()`) to create the UI element. Note that the `shiny.express.ui.Chat()` class still has a `.ui()` method. (#1840)
 
 ### Bug fixes
 

shiny/ui/_navs.py

@@ -1320,7 +1320,12 @@ def layout(self, nav: Tag, content: Tag) -> TagList:
             nav = div(nav, id=collapse_id, class_="collapse navbar-collapse")
 
         nav_container.append(nav)
-        nav_final = tags.nav({"class": "navbar navbar-expand-md"}, nav_container)
+        nav_final = tags.nav(
+            {"class": "navbar navbar-expand-md"},
+            nav_container,
+            {"data-bs-theme": self.navbar_options.theme},
+            **self.navbar_options.attrs,
+        )
 
         if self.navbar_options.position != "static-top":
             nav_final.add_class(self.navbar_options.position)

tests/playwright/shiny/components/nav/navset_bar_options/app.py

@@ -0,0 +1,23 @@
+from shiny import App, Inputs, Outputs, Session, ui
+
+app_ui = ui.page_navbar(
+    ui.nav_panel(
+        "Page 1",
+        ui.navset_bar(
+            ui.nav_panel("Inner 1", "Inner content"),
+            title="Inner navbar",
+            id="inner_navset_bar",
+            navbar_options=ui.navbar_options(class_="bg-light", theme="light"),
+        ),
+    ),
+    title="Title",
+    id="page_navbar",
+    navbar_options=ui.navbar_options(class_="bg-primary", theme="dark"),
+)
+
+
+def server(input: Inputs, output: Outputs, session: Session):
+    pass
+
+
+app = App(app_ui, server)

tests/playwright/shiny/components/nav/navset_bar_options/test_navset_bar_options.py

@@ -0,0 +1,18 @@
+import re
+
+from playwright.sync_api import Page, expect
+
+from shiny.playwright import controller
+from shiny.run import ShinyAppProc
+
+
+def test_navset_bar_options(page: Page, local_app: ShinyAppProc) -> None:
+    page.goto(local_app.url)
+
+    page_navbar = controller.PageNavbar(page, "page_navbar")
+    expect(page_navbar._loc_navbar).to_have_class(re.compile(r"(^|\s)bg-primary(\s|$)"))
+    expect(page_navbar._loc_navbar).to_have_attribute("data-bs-theme", "dark")
+
+    inner_navbar = controller.NavsetBar(page, "inner_navset_bar")
+    expect(inner_navbar._loc_navbar).to_have_class(re.compile(r"(^|\s)bg-light(\s|$)"))
+    expect(inner_navbar._loc_navbar).to_have_attribute("data-bs-theme", "light")

tests/pytest/test_navs.py

@@ -157,7 +157,7 @@ def test_navset_bar_markup():
 
     assert TagList(x).render()["html"] == textwrap.dedent(
         """\
-        <nav class="navbar navbar-expand-md navbar-default">
+        <nav class="navbar navbar-expand-md navbar-default" data-bs-theme="auto">
           <div class="container-fluid">
             <span class="navbar-brand">Page title</span><button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbar-collapse-795772" aria-controls="navbar-collapse-795772" aria-expanded="false" aria-label="Toggle navigation"><span class="navbar-toggler-icon"></span></button>
             <div id="navbar-collapse-795772" class="collapse navbar-collapse">