Initial implementation for Gresource support.

Cargo.toml

@@ -2,6 +2,7 @@
 authors = ["Daniel Garcia <danigm@wadobo.com>"]
 name = "fractal"
 version = "0.1.0"
+build = "build.rs"
 
 [dependencies]
 gdk = "0.6.0"

build.rs

@@ -2,7 +2,7 @@ use std::env;
 use std::fs::File;
 use std::io::Write;
 use std::path::Path;
-
+use std::process::Command;
 
 fn main() {
     let out_dir = env::var("OUT_DIR").unwrap();
@@ -20,4 +20,11 @@ fn main() {
     ", fractal_res);
 
     f.write_all(code.as_bytes()).unwrap();
+
+    // Compile Gresource
+    Command::new("glib-compile-resources")
+        .args(&["--generate", "resources.xml"])
+        .current_dir("res")
+        .status()
+        .unwrap();
 }

res/resources.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/org/gnome/fractal/">
+      <file preprocess="xml-stripblanks">main_window.glade</file>
+      <file preprocess="xml-stripblanks">fractal.svg</file>
+      <file>app.css</file>
+  </gresource>
+</gresources>

src/app.rs

@@ -1221,7 +1221,7 @@ impl App {
         let bk = Backend::new(tx);
         let apptx = bk.run();
 
-        let gtk_builder = gtk::Builder::new_from_file(&config::datadir("main_window.glade"));
+        let gtk_builder = gtk::Builder::new_from_resource("/org/gnome/fractal/main_window.glade");
         let op = Arc::new(Mutex::new(AppOp {
             gtk_builder: gtk_builder.clone(),
             load_more_btn: gtk::Button::new_with_label("Load more messages"),
@@ -1376,7 +1376,9 @@ impl App {
             .expect("Couldn't find main_window in ui file.");
 
         window.set_title("Fractal");
-        let _ = window.set_icon_from_file(&config::datadir("fractal.svg"));
+        let pxbf = Pixbuf::new_from_resource("/org/gnome/fractal/fractal.svg").unwrap();
+        let _ = window.set_icon(&pxbf);
+        // let _ = window.set_icon_from_file(&config::datadir("fractal.svg"));
         window.show_all();
 
         let op = self.op.clone();
@@ -1685,10 +1687,11 @@ impl App {
         glib::set_prgname(Some("fractal"));
 
         let provider = gtk::CssProvider::new();
-        let uri = config::datadir("app.css");
-        if let Err(_) = provider.load_from_path(&uri) {
-            println!("Error: Failed to add application style");
-        }
+        provider.load_from_resource("/org/gnome/fractal/app.css");
+        // let uri = config::datadir("app.css");
+        // if let Err(_) = provider.load_from_path(&uri) {
+        //     println!("Error: Failed to add application style");
+        // }
         gtk::StyleContext::add_provider_for_screen(&gdk::Screen::get_default().unwrap(), &provider, 600);
 
         gtk::main();

src/main.rs

@@ -1,3 +1,7 @@
+
+extern crate glib;
+extern crate gio;
+
 #[macro_use]
 extern crate serde_json;
 #[macro_use]
@@ -11,11 +15,13 @@ mod cache;
 mod backend;
 mod model;
 mod app;
+mod static_resources;
 
 use app::App;
 
 
 fn main() {
+    static_resources::init().expect("GResource initialization failed.");
     let app = App::new();
     app.run();
 }

src/static_resources.rs

@@ -0,0 +1,19 @@
+use gio::{resources_register, Error, Resource};
+use glib::Bytes;
+
+pub fn init() -> Result<(), Error> {
+    // load the gresource binary at build time and include/link it into the final binary.
+    let res_bytes = include_bytes!("../res/resources.gresource");
+
+    // Create Resource it will live as long the value lives.
+    // TODO: change it into Bytes::From_static once the fix lands
+    // https://bugzilla.gnome.org/show_bug.cgi?id=790030
+    let gbytes = Bytes::from(&res_bytes.as_ref());
+    let resource = Resource::new_from_data(&gbytes)?;
+    // let resource = Resource::new_from_data(&res_bytes.as_ref().into())?;
+
+    // Register the resource so It wont be dropped and will continue to live in memory.
+    resources_register(&resource);
+
+    Ok(())
+}