reflow_components 0.2.0

Standard component catalog for Reflow — procedural, media, GPU, animation, I/O, and stream actors.
Documentation 
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//! Mouse/pointer input 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(
    MouseInputActor,
    inports::<1>(),
    outports::<50>(event, position, button, delta),
    state(MemoryState)
)]
pub async fn mouse_input_actor(ctx: ActorContext) -> Result<HashMap<String, Message>, Error> {
    let e = super::extract_event_data(&ctx);

    let x = e
        .get("x")
        .or(e.get("clientX"))
        .and_then(|v| v.as_f64())
        .unwrap_or(0.0);
    let y = e
        .get("y")
        .or(e.get("clientY"))
        .and_then(|v| v.as_f64())
        .unwrap_or(0.0);
    let button = e.get("button").and_then(|v| v.as_u64()).unwrap_or(0);
    let delta_x = e.get("deltaX").and_then(|v| v.as_f64()).unwrap_or(0.0);
    let delta_y = e.get("deltaY").and_then(|v| v.as_f64()).unwrap_or(0.0);

    let mut out = HashMap::new();
    out.insert(
        "event".to_string(),
        Message::object(EncodableValue::from(e)),
    );
    out.insert(
        "position".to_string(),
        Message::object(EncodableValue::from(json!({ "x": x, "y": y }))),
    );
    out.insert("button".to_string(), Message::Integer(button as i64));
    out.insert(
        "delta".to_string(),
        Message::object(EncodableValue::from(json!({ "x": delta_x, "y": delta_y }))),
    );
    Ok(out)
}