reflow_components 0.2.1

Standard component catalog for Reflow — procedural, media, GPU, animation, I/O, and stream actors.
Documentation 
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//! Window/viewport event actor.

use crate::{Actor, ActorBehavior, Message, Port};
use anyhow::{Error, Result};
use reflow_actor::{message::EncodableValue, ActorContext};
use reflow_actor_macro::actor;
use serde_json::json;
use std::collections::HashMap;

#[actor(
    WindowEventActor,
    inports::<1>(),
    outports::<50>(event, size, dpr),
    state(MemoryState)
)]
pub async fn window_event_actor(ctx: ActorContext) -> Result<HashMap<String, Message>, Error> {
    let e = super::extract_event_data(&ctx);

    let width = e.get("width").and_then(|v| v.as_f64()).unwrap_or(0.0);
    let height = e.get("height").and_then(|v| v.as_f64()).unwrap_or(0.0);
    let dpr = e
        .get("devicePixelRatio")
        .and_then(|v| v.as_f64())
        .unwrap_or(1.0);

    let mut out = HashMap::new();
    out.insert(
        "event".to_string(),
        Message::object(EncodableValue::from(e)),
    );
    out.insert(
        "size".to_string(),
        Message::object(EncodableValue::from(json!({ "x": width, "y": height }))),
    );
    out.insert("dpr".to_string(), Message::Float(dpr));
    Ok(out)
}