Add hx-boosted support to Layout

It will now skip rendering the layout if the request is coming from an
hx-boosted link or form and only update the head title with a
hx-swap-oob.

src/handlers/entry.rs

@@ -2,11 +2,13 @@ use std::fs;
 
 use axum::extract::{Path, State};
 use axum::response::Response;
+use axum::TypedHeader;
 use maud::{html, PreEscaped};
 use sqlx::PgPool;
 
 use crate::config::Config;
 use crate::error::Result;
+use crate::htmx::HXBoosted;
 use crate::models::entry::Entry;
 use crate::partials::layout::Layout;
 use crate::uuid::Base62Uuid;
@@ -15,6 +17,7 @@ pub async fn get(
     Path(id): Path<Base62Uuid>,
     State(pool): State<PgPool>,
     State(config): State<Config>,
+    hx_boosted: Option<TypedHeader<HXBoosted>>,
     layout: Layout,
 ) -> Result<Response> {
     let entry = Entry::get(&pool, id.as_uuid()).await?;
@@ -25,20 +28,23 @@ pub async fn get(
         .published_at
         .to_rfc3339_opts(chrono::SecondsFormat::Millis, true);
     let content = fs::read_to_string(content_path).unwrap_or_else(|_| "No content".to_string());
-    Ok(layout.with_subtitle(&title).render(html! {
-        article {
-            header {
-                h2 class="title" { a href=(entry.url) { (title) } }
-            }
-            div {
-                span class="published" {
-                    strong { "Published: " }
-                    time datetime=(published_at) class="local-time" {
-                        (published_at)
+    Ok(layout
+        .with_subtitle(&title)
+        .boosted(hx_boosted)
+        .render(html! {
+            article {
+                header {
+                    h2 class="title" { a href=(entry.url) { (title) } }
+                }
+                div {
+                    span class="published" {
+                        strong { "Published: " }
+                        time datetime=(published_at) class="local-time" {
+                            (published_at)
+                        }
                     }
                 }
+                (PreEscaped(content))
             }
-            (PreEscaped(content))
-        }
-    }))
+        }))
 }