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examples/brp.rs

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+//! Shows how to use Bevy Remote Protocol (BRP) with the webview.
+//!
+//! Please see [here](https://gist.github.com/coreh/1baf6f255d7e86e4be29874d00137d1d) for more about BRP.
+
+use bevy::prelude::*;
+use bevy::time::common_conditions::on_timer;
+use bevy::window::PrimaryWindow;
+use bevy_cef::prelude::*;
+use bevy_remote::{BrpResult, RemotePlugin};
+use cef::Window;
+use serde::Deserialize;
+use std::time::Duration;
+
+fn main() {
+    App::new()
+        .add_plugins((
+            DefaultPlugins,
+            RemotePlugin::default().with_method("greet", greet),
+            CefPlugin,
+        ))
+        .add_systems(
+            Startup,
+            (ime, spawn_camera, spawn_directional_light, spawn_webview),
+        )
+        .add_systems(
+            Update,
+            show_devtool.run_if(on_timer(Duration::from_secs(1))),
+        )
+        .run();
+}
+
+fn greet(In(name): In<Option<serde_json::Value>>) -> BrpResult {
+    let name = name.unwrap_or_default();
+    Ok(serde_json::Value::String(format!("Hello, {name}!")))
+}
+
+fn spawn_camera(mut commands: Commands) {
+    commands.spawn((
+        Camera3d::default(),
+        Transform::from_translation(Vec3::new(0., 0., 3.)).looking_at(Vec3::ZERO, Vec3::Y),
+    ));
+}
+
+fn spawn_directional_light(mut commands: Commands) {
+    commands.spawn((
+        DirectionalLight::default(),
+        Transform::from_translation(Vec3::new(1., 1., 1.)).looking_at(Vec3::ZERO, Vec3::Y),
+    ));
+}
+
+fn spawn_webview(
+    mut commands: Commands,
+    mut meshes: ResMut<Assets<Mesh>>,
+    mut materials: ResMut<Assets<WebviewExtendStandardMaterial>>,
+) {
+    commands.spawn((
+        CefWebviewUri::local("brp.html"),
+        Mesh3d(meshes.add(Plane3d::new(Vec3::Z, Vec2::ONE))),
+        MeshMaterial3d(materials.add(WebviewExtendStandardMaterial {
+            base: StandardMaterial {
+                unlit: true,
+                emissive: Color::WHITE.into(),
+                ..default()
+            },
+            ..default()
+        })),
+    ));
+}
+
+fn ime(mut windows: Query<&mut bevy::prelude::Window>) {
+    for mut window in windows.iter_mut() {
+        window.ime_enabled = true;
+    }
+}
+
+fn show_devtool(
+    mut commands: Commands,
+    webviews: Query<Entity, With<CefWebviewUri>>,
+    mut initialized: Local<bool>,
+) {
+    if *initialized {
+        return;
+    }
+    *initialized = true;
+    for webview in webviews.iter() {
+        commands.entity(webview).trigger(RequestShowDevTool);
+    }
+}