From f3cae9f1f99184ebe64344acc52755550d7c90d6 Mon Sep 17 00:00:00 2001
From: Erik Kundt <erik@zirkular.io>
Date: Wed, 21 Jan 2026 11:50:52 +0100
Subject: [PATCH] lib: Allow switching themes

---
 README.md             | 3 ++-
 examples/hello.rs     | 3 ++-
 examples/readme.rs    | 3 ++-
 examples/selection.rs | 3 ++-
 src/ui.rs             | 5 +++++
 src/ui/theme.rs       | 4 +++-
 src/ui/widget.rs      | 9 ++++++---
 7 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/README.md b/README.md
index b9ceb657..80f86e97 100644
--- a/README.md
+++ b/README.md
@@ -147,6 +147,7 @@ use radicle_tui as tui;
 use tui::event::Key;
 use tui::store;
 use tui::task::EmptyProcessors;
+use tui::ui::theme::Theme;
 use tui::ui::widget::{Borders, Window};
 use tui::ui::{Context, Show};
 use tui::{Channel, Exit};
@@ -173,7 +174,7 @@ impl store::Update<Message> for App {
 
 impl Show<Message> for App {
     fn show(&self, ctx: &Context<Message>, frame: &mut Frame) -> Result<()> {
-        Window::default().show(ctx, |ui| {
+        Window::default().show(ctx, Theme::default(), |ui| {
             ui.text_view(
                 frame,
                 self.hello.clone(),
diff --git a/examples/hello.rs b/examples/hello.rs
index 58b1ae95..73009b45 100644
--- a/examples/hello.rs
+++ b/examples/hello.rs
@@ -9,6 +9,7 @@ use radicle_tui as tui;
 use tui::event::Key;
 use tui::store;
 use tui::task::EmptyProcessors;
+use tui::ui::theme::Theme;
 use tui::ui::widget::{Borders, Window};
 use tui::ui::{Context, Show};
 use tui::{Channel, Exit};
@@ -50,7 +51,7 @@ impl store::Update<Message> for App {
 
 impl Show<Message> for App {
     fn show(&self, ctx: &Context<Message>, frame: &mut Frame) -> Result<()> {
-        Window::default().show(ctx, |ui| {
+        Window::default().show(ctx, Theme::default(), |ui| {
             ui.text_view(
                 frame,
                 self.alien.clone(),
diff --git a/examples/readme.rs b/examples/readme.rs
index 33f09876..bfd0bb41 100644
--- a/examples/readme.rs
+++ b/examples/readme.rs
@@ -8,6 +8,7 @@ use radicle_tui as tui;
 use tui::event::Key;
 use tui::store;
 use tui::task::EmptyProcessors;
+use tui::ui::theme::Theme;
 use tui::ui::widget::{Borders, Window};
 use tui::ui::{Context, Show};
 use tui::{Channel, Exit};
@@ -34,7 +35,7 @@ impl store::Update<Message> for App {
 
 impl Show<Message> for App {
     fn show(&self, ctx: &Context<Message>, frame: &mut Frame) -> Result<()> {
-        Window::default().show(ctx, |ui| {
+        Window::default().show(ctx, Theme::default(), |ui| {
             ui.text_view(
                 frame,
                 self.hello.clone(),
diff --git a/examples/selection.rs b/examples/selection.rs
index 7f87161d..7ff2bd8b 100644
--- a/examples/selection.rs
+++ b/examples/selection.rs
@@ -14,6 +14,7 @@ use tui::event::Key;
 use tui::store::Update;
 use tui::task::EmptyProcessors;
 use tui::ui::layout::Spacing;
+use tui::ui::theme::Theme;
 use tui::ui::widget::{Borders, Column, TableState, Window};
 use tui::ui::{Context, Show, ToRow};
 use tui::Channel;
@@ -75,7 +76,7 @@ impl Update<Message> for App {
 
 impl Show<Message> for App {
     fn show(&self, ctx: &Context<Message>, frame: &mut Frame) -> Result<()> {
-        Window::default().show(ctx, |ui| {
+        Window::default().show(ctx, Theme::default(), |ui| {
             ui.layout(
                 Layout::vertical([
                     Constraint::Length(1),
diff --git a/src/ui.rs b/src/ui.rs
index dfc4f968..f9371a51 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -397,6 +397,11 @@ impl<M> Ui<M> {
         self
     }
 
+    pub fn with_theme(mut self, theme: Theme) -> Self {
+        self.theme = theme;
+        self
+    }
+
     pub fn theme(&self) -> &Theme {
         &self.theme
     }
diff --git a/src/ui/theme.rs b/src/ui/theme.rs
index da710bc8..b6a57757 100644
--- a/src/ui/theme.rs
+++ b/src/ui/theme.rs
@@ -1,6 +1,8 @@
+use serde::{Deserialize, Serialize};
+
 use ratatui::style::{Color, Style, Stylize};
 
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct Theme {
     pub border_style: Style,
     pub focus_border_style: Style,
diff --git a/src/ui/widget.rs b/src/ui/widget.rs
index 941066b2..cdb72d48 100644
--- a/src/ui/widget.rs
+++ b/src/ui/widget.rs
@@ -15,7 +15,7 @@ use ratatui::{layout::Constraint, widgets::Paragraph};
 use crate::event::Key;
 use crate::ui::ext::{FooterBlock, FooterBlockType, HeaderBlock};
 use crate::ui::layout::Spacing;
-use crate::ui::theme::style;
+use crate::ui::theme::{style, Theme};
 use crate::ui::ToRow;
 use crate::ui::{layout, span, ToTree};
 
@@ -131,17 +131,19 @@ impl Window {
     pub fn show<M, R>(
         self,
         ctx: &Context<M>,
+        theme: Theme,
         add_contents: impl FnOnce(&mut Ui<M>) -> R,
     ) -> Option<InnerResponse<Option<R>>>
     where
         M: Clone,
     {
-        self.show_dyn(ctx, Box::new(add_contents))
+        self.show_dyn(ctx, theme, Box::new(add_contents))
     }
 
     fn show_dyn<M, R>(
         self,
         ctx: &Context<M>,
+        theme: Theme,
         add_contents: Box<AddContentFn<M, R>>,
     ) -> Option<InnerResponse<Option<R>>>
     where
@@ -152,7 +154,8 @@ impl Window {
             .with_area(ctx.frame_size())
             .with_ctx(ctx.clone())
             .with_layout(Layout::horizontal([Constraint::Min(1)]).into())
-            .with_area_focus(Some(0));
+            .with_area_focus(Some(0))
+            .with_theme(theme);
 
         let inner = add_contents(&mut ui);