trait App now has fn name() for specifying egui_glium window title

CHANGELOG.md

@@ -25,6 +25,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 * `ui.image` now takes `impl Into<Vec2>` as a `size` argument.
 * Made some more fields of `RawInput` optional.
 * `Slider` and `DragValue` uses fewer decimals by default. See the full precision by hovering over the value.
+* `egui::App`: added `fn name(&self)`
 
 ### Deprecated
 * Deprecated `RawInput::screen_size` - use `RawInput::screen_rect` instead.

demo_glium/src/main.rs

@@ -3,8 +3,6 @@
 #![warn(clippy::all)]
 
 fn main() {
-    let title = "Egui glium demo";
-
     // Persist app state to file:
     let storage = egui_glium::storage::FileStorage::from_path(".egui_demo_glium.json");
 
@@ -12,5 +10,5 @@ fn main() {
     // let storage = egui::app::DummyStorage::default();
 
     let app: egui::DemoApp = egui::app::get_value(&storage, egui::app::APP_KEY).unwrap_or_default();
-    egui_glium::run(title, Box::new(storage), Box::new(app));
+    egui_glium::run(Box::new(storage), Box::new(app));
 }

egui/src/app.rs

@@ -12,6 +12,10 @@ use crate::Context;
 /// Implement this trait to write apps that can be compiled both natively using the [`egui_glium`](https://crates.io/crates/egui_glium) crate,
 /// and deployed as a web site using the [`egui_web`](https://crates.io/crates/egui_web) crate.
 pub trait App {
+    /// The name of your App.
+    fn name(&self) -> &str;
+    }
+
     /// Called once before the first frame.
     /// Allows you to do setup code and to call `ctx.set_fonts()`.
     /// Optional.

egui/src/demos/app.rs

@@ -278,6 +278,10 @@ impl DemoApp {
 }
 
 impl app::App for DemoApp {
+    fn name(&self) -> &str {
+        "Egui Demo"
+    }
+
     fn ui(
         &mut self,
         ctx: &Arc<Context>,

egui_glium/CHANGELOG.md

@@ -10,6 +10,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### Changed
 
 * `egui_glium::run`: the parameter `app` now has signature `Box<dyn App>` (you need to add `Box::new(app)` to your code).
+* Window title is now passed via the `trait` function `egui::App::name()`
 
 ### Fixed 🐛
 

egui_glium/src/backend.rs

@@ -64,11 +64,11 @@ fn create_display(
 }
 
 /// Run an egui app
-pub fn run(title: &str, mut storage: Box<dyn egui::app::Storage>, mut app: Box<dyn App>) -> ! {
+pub fn run(mut storage: Box<dyn egui::app::Storage>, mut app: Box<dyn App>) -> ! {
     let window_settings: Option<WindowSettings> =
         egui::app::get_value(storage.as_ref(), WINDOW_KEY);
     let event_loop = glutin::event_loop::EventLoop::with_user_event();
-    let display = create_display(title, window_settings, &event_loop);
+    let display = create_display(app.name(), window_settings, &event_loop);
 
     let repaint_signal = std::sync::Arc::new(GliumRepaintSignal(event_loop.create_proxy()));
 

example_glium/src/example_app.rs

@@ -15,6 +15,10 @@ impl Default for ExampleApp {
 }
 
 impl egui::app::App for ExampleApp {
+    fn name(&self) -> &str {
+        "Egui Example"
+    }
+
     /// Called each time the UI needs repainting, which may be many times per second.
     /// Put your widgets into a `SidePanel`, `TopPanel`, `CentralPanel`, `Window` or `Area`.
     fn ui(

example_glium/src/main.rs

@@ -7,8 +7,6 @@ mod example_app;
 use example_app::ExampleApp;
 
 fn main() {
-    let title = "My Egui Window";
-
     // Persist app state to file:
     let storage = egui_glium::storage::FileStorage::from_path(".egui_example_glium.json");
 
@@ -18,5 +16,5 @@ fn main() {
     // Restore `example_app` from file, or create new `ExampleApp`:
     let app: ExampleApp = egui::app::get_value(&storage, egui::app::APP_KEY).unwrap_or_default();
 
-    egui_glium::run(title, Box::new(storage), Box::new(app));
+    egui_glium::run(Box::new(storage), Box::new(app));
 }

example_web/src/example_app.rs

@@ -39,6 +39,10 @@ impl Default for ExampleApp {
 }
 
 impl egui::app::App for ExampleApp {
+    fn name(&self) -> &str {
+        "Egui Fetch Example"
+    }
+
     /// Called each time the UI needs repainting, which may be many times per second.
     /// Put your widgets into a `SidePanel`, `TopPanel`, `CentralPanel`, `Window` or `Area`.
     fn ui(