Add the CSS style context to the main window

fitnesstrax/app/build.rs

@@ -0,0 +1,7 @@
+fn main() {
+    glib_build_tools::compile_resources(
+        &["resources"],
+        "resources/gresources.xml",
+        "com.luminescent-dreams.fitnesstrax.gresource",
+    );
+}

fitnesstrax/app/resources/com.luminescent-dreams.fitnesstrax.dev.gschema.xml

@@ -1,5 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <schemalist>
+    <schema id="com.luminescent-dreams.fitnesstrax" path="/com/luminescent-dreams/fitnesstrax/">
+        <key name="series-path" type="s">
+            <default>""</default>
+            <summary>Path to the series</summary>
+        </key>
+    </schema>
     <schema id="com.luminescent-dreams.fitnesstrax.dev" path="/com/luminescent-dreams/fitnesstrax/dev/">
         <key name="series-path" type="s">
             <default>""</default>

fitnesstrax/app/resources/gresources.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+    <gresource prefix="/com/luminescent-dreams/fitnesstrax/">
+        <file>style.css</file>
+    </gresource>
+</gresources>

fitnesstrax/app/src/main.rs

@@ -1,11 +1,11 @@
-use gtk::prelude::*;
+use gio::resources_lookup_data;
+use gtk::{prelude::*, STYLE_PROVIDER_PRIORITY_USER};
 use std::env;
 
 const APP_ID_DEV: &str = "com.luminescent-dreams.fitnesstrax.dev";
 const APP_ID_PROD: &str = "com.luminescent-dreams.fitnesstrax";
 
-const RESOURCE_BASE_PATH_DEV: &str = "/com/luminescent-dreams/fitnesstrax/dev/";
+const RESOURCE_BASE_PATH: &str = "/com/luminescent-dreams/fitnesstrax/";
-const RESOURCE_BASE_PATH_PROD: &str = "/com/luminescent-dreams/fitnesstrax/";
 
 struct AppState {}
 
@@ -14,10 +14,17 @@ struct AppWindow {
 }
 
 fn main() {
-    let (app_id, base_path) = if std::env::var_os("ENV") == Some("dev".into()) {
+    // I still don't fully understand gio resources. resources_register_include! is convenient
-        (APP_ID_DEV, RESOURCE_BASE_PATH_DEV)
+    // because I don't have to deal with filesystem locations at runtime. However, I think other
+    // GTK applications do that rather than compiling the resources directly into the app. So, I'm
+    // unclear as to how I want to handle this.
+    gio::resources_register_include!("com.luminescent-dreams.fitnesstrax.gresource")
+        .expect("to register resources");
+
+    let app_id = if std::env::var_os("ENV") == Some("dev".into()) {
+        APP_ID_DEV
     } else {
-        (APP_ID_PROD, RESOURCE_BASE_PATH_PROD)
+        APP_ID_PROD
     };
 
     let settings = gio::Settings::new(app_id);
@@ -26,7 +33,7 @@ fn main() {
 
     let app = adw::Application::builder()
         .application_id(app_id)
-        .resource_base_path(base_path)
+        .resource_base_path(RESOURCE_BASE_PATH)
         .build();
 
     /*
@@ -37,12 +44,28 @@ fn main() {
         */
 
     let app = adw::Application::builder()
-        .application_id("com.luminescent-dreams.fitnesstrax")
+        .application_id(app_id)
-        .resource_base_path("/com/luminescent-dreams/fitnesstrax")
+        .resource_base_path(RESOURCE_BASE_PATH)
         .build();
 
     app.connect_activate(move |app| {
+        let stylesheet = String::from_utf8(
+            resources_lookup_data(
+                &format!("{}style.css", RESOURCE_BASE_PATH),
+                gio::ResourceLookupFlags::NONE,
+            )
+            .expect("stylesheet must be available in the resources")
+            .to_vec(),
+        )
+        .expect("to parse stylesheet");
+
+        let provider = gtk::CssProvider::new();
+        provider.load_from_data(&stylesheet);
+
         let window = adw::ApplicationWindow::new(app);
+        let context = window.style_context();
+        context.add_provider(&provider, STYLE_PROVIDER_PRIORITY_USER);
+
         window.present();
     });