INIT

examples/host_emit.rs

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+//! Shows how to emit an event from the host to the webview.
+
+use bevy::prelude::*;
+use bevy::time::common_conditions::on_timer;
+use bevy_cef::prelude::*;
+use std::time::Duration;
+
+fn main() {
+    App::new()
+        .add_plugins((DefaultPlugins, CefPlugin))
+        .add_systems(
+            Startup,
+            (spawn_camera, spawn_directional_light, spawn_webview),
+        )
+        .add_systems(Update, emit_count.run_if(on_timer(Duration::from_secs(1))))
+        .run();
+}
+
+#[derive(Component)]
+struct DebugWebview;
+
+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((
+        DebugWebview,
+        CefWebviewUri::local("host_emit.html"),
+        Mesh3d(meshes.add(Plane3d::new(Vec3::Z, Vec2::ONE))),
+        MeshMaterial3d(materials.add(WebviewExtendStandardMaterial::default())),
+    ));
+}
+
+fn emit_count(
+    mut commands: Commands,
+    mut count: Local<usize>,
+    webviews: Query<Entity, With<DebugWebview>>,
+) {
+    *count += 1;
+    commands
+        .entity(webviews.single().unwrap())
+        .trigger(HostEmitEvent::new("count", &*count));
+}