From 96ac4e263c4eb25067a2016d2a1441b2e4393cbe Mon Sep 17 00:00:00 2001
From: Roman Zeyde <roman.zeyde@satoshilabs.com>
Date: Thu, 23 Jan 2025 11:57:09 +0200
Subject: [PATCH] refactor(core): reduce
 `ui::layout_delizia::component::header::Header` size

[no changelog]
---
 .../src/ui/layout_delizia/component/frame.rs  | 14 +++++------
 .../src/ui/layout_delizia/component/header.rs | 24 +++++++++++++++----
 2 files changed, 27 insertions(+), 11 deletions(-)

diff --git a/core/embed/rust/src/ui/layout_delizia/component/frame.rs b/core/embed/rust/src/ui/layout_delizia/component/frame.rs
index c51cb3aaf07..33a8e1e383a 100644
--- a/core/embed/rust/src/ui/layout_delizia/component/frame.rs
+++ b/core/embed/rust/src/ui/layout_delizia/component/frame.rs
@@ -1,4 +1,4 @@
-use super::{theme, ButtonStyleSheet, Footer, Header};
+use super::{header::HeaderMsg, theme, ButtonStyleSheet, Footer, Header};
 use crate::{
     strutil::TString,
     ui::{
@@ -139,31 +139,31 @@ where
     }
 
     #[inline(never)]
-    fn with_button(mut self, icon: Icon, msg: FlowMsg, enabled: bool) -> Self {
+    fn with_button(mut self, icon: Icon, msg: HeaderMsg, enabled: bool) -> Self {
         self.header = self.header.with_button(icon, enabled, msg);
         self
     }
 
     pub fn with_cancel_button(self) -> Self {
-        self.with_button(theme::ICON_CLOSE, FlowMsg::Cancelled, true)
+        self.with_button(theme::ICON_CLOSE, HeaderMsg::Cancelled, true)
     }
 
     pub fn with_menu_button(self) -> Self {
-        self.with_button(theme::ICON_MENU, FlowMsg::Info, true)
+        self.with_button(theme::ICON_MENU, HeaderMsg::Info, true)
     }
 
     pub fn with_danger_menu_button(self) -> Self {
-        self.with_button(theme::ICON_MENU, FlowMsg::Info, true)
+        self.with_button(theme::ICON_MENU, HeaderMsg::Info, true)
             .button_styled(theme::button_warning_high())
     }
 
     pub fn with_warning_low_icon(self) -> Self {
-        self.with_button(theme::ICON_WARNING, FlowMsg::Info, false)
+        self.with_button(theme::ICON_WARNING, HeaderMsg::Info, false)
             .button_styled(theme::button_warning_low())
     }
 
     pub fn with_danger_icon(self) -> Self {
-        self.with_button(theme::ICON_WARNING, FlowMsg::Info, false)
+        self.with_button(theme::ICON_WARNING, HeaderMsg::Info, false)
             .button_styled(theme::button_danger())
     }
 
diff --git a/core/embed/rust/src/ui/layout_delizia/component/header.rs b/core/embed/rust/src/ui/layout_delizia/component/header.rs
index 5d64c5ee5ed..83a4dcf929f 100644
--- a/core/embed/rust/src/ui/layout_delizia/component/header.rs
+++ b/core/embed/rust/src/ui/layout_delizia/component/header.rs
@@ -61,6 +61,22 @@ impl AttachAnimation {
 
 const BUTTON_EXPAND_BORDER: i16 = 32;
 
+#[derive(Clone, Copy)]
+pub enum HeaderMsg {
+    // Note: other FlowMsg variants are not used, so the total enum size can be reduced.
+    Cancelled,
+    Info,
+}
+
+impl From<HeaderMsg> for FlowMsg {
+    fn from(msg: HeaderMsg) -> Self {
+        match msg {
+            HeaderMsg::Cancelled => FlowMsg::Cancelled,
+            HeaderMsg::Info => FlowMsg::Info,
+        }
+    }
+}
+
 pub struct Header {
     area: Rect,
     title: Label<'static>,
@@ -70,7 +86,7 @@ pub struct Header {
     icon: Option<Icon>,
     color: Option<Color>,
     title_style: TextStyle,
-    button_msg: FlowMsg,
+    button_msg: HeaderMsg,
 }
 
 impl Header {
@@ -84,7 +100,7 @@ impl Header {
             icon: None,
             color: None,
             title_style: theme::label_title_main(),
-            button_msg: FlowMsg::Cancelled,
+            button_msg: HeaderMsg::Cancelled,
         }
     }
     #[inline(never)]
@@ -133,7 +149,7 @@ impl Header {
     }
 
     #[inline(never)]
-    pub fn with_button(mut self, icon: Icon, enabled: bool, msg: FlowMsg) -> Self {
+    pub fn with_button(mut self, icon: Icon, enabled: bool, msg: HeaderMsg) -> Self {
         let touch_area = Insets::uniform(BUTTON_EXPAND_BORDER);
         self.button = Some(
             Button::with_icon(icon)
@@ -207,7 +223,7 @@ impl Component for Header {
         }
 
         if let Some(ButtonMsg::Clicked) = self.button.event(ctx, event) {
-            return Some(self.button_msg.clone());
+            return Some(self.button_msg.into());
         };
 
         None