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use crate::EventHandlerFuture;
use core::future::Future;
use js::*;
pub fn random() -> f64 {
let random = js!(r#"
function(){
return Math.random();
}"#);
random.invoke(&[])
}
pub fn random_i64() -> i64 {
let r = random();
let i64 = std::i64::MAX;
(r * i64 as f64) as i64
}
pub fn get_property_i64(element: &ExternRef, property: &str) -> i64 {
let get_property = js!(r#"
function(element, property){
return element[property];
}"#);
get_property.invoke_and_return_bigint(&[element.into(), property.into()])
}
pub fn set_property_i64(element: &ExternRef, property: &str, value: i64) {
let set_property = js!(r#"
function(element, property, value){
element[property] = value;
}"#);
set_property.invoke(&[element.into(), property.into(), value.into()]);
}
pub fn get_property_f64(element: &ExternRef, property: &str) -> f64 {
let get_property = js!(r#"
function(element, property){
return element[property];
}"#);
get_property.invoke(&[element.into(), property.into()])
}
pub fn set_property_f64(element: &ExternRef, property: &str, value: f64) {
let set_property = js!(r#"
function(element, property, value){
element[property] = value;
}"#);
set_property.invoke(&[element.into(), property.into(), value.into()]);
}
pub fn get_property_bool(element: &ExternRef, property: &str) -> bool {
let get_property = js!(r#"
function(element, property){
return element[property]?1:0;
}"#);
let v = get_property.invoke(&[element.into(), property.into()]);
v == 1.0
}
pub fn set_property_bool(element: &ExternRef, property: &str, value: bool) {
let set_property = js!(r#"
function(element, property, value){
element[property] = value !==0;
}"#);
set_property.invoke(&[element.into(), property.into(), value.into()]);
}
pub fn get_property_string(element: &ExternRef, property: &str) -> String {
let get_property = js!(r#"
function(element, property){
const text = element[property];
const allocationId = this.writeUtf8ToMemory(text);
return allocationId;
}"#);
let text_allocation_id = get_property.invoke(&[element.into(), property.into()]);
let text = extract_string_from_memory(text_allocation_id as usize);
text
}
pub fn set_property_string(element: &ExternRef, property: &str, value: &str) {
let set_property = js!(r#"
function(element, property, value){
element[property] = value;
}"#);
set_property.invoke(&[element.into(), property.into(), value.into()]);
}
#[no_mangle]
pub extern "C" fn web_handle_empty_callback(id: i64) {
EventHandlerFuture::<()>::wake_future_with_state_id(id, ());
}
pub fn sleep(ms: impl Into<f64>) -> impl Future<Output = ()> {
let sleep = js!(r#"
function(ms, state_id){
window.setTimeout(()=>{
this.module.instance.exports.web_handle_empty_callback(state_id);
}, ms);
}"#);
let ms = ms.into();
let (future, state_id) = EventHandlerFuture::<()>::create_future_with_state_id();
sleep.invoke(&[ms.into(), state_id.into()]);
future
}
pub fn wait_til_animation_frame() -> impl Future<Output = ()> {
let wait_til_animation_frame = js!(r#"
function(state_id){
window.requestAnimationFrame(()=>{
this.module.instance.exports.web_handle_empty_callback(state_id);
});
}"#);
let (future, state_id) = EventHandlerFuture::<()>::create_future_with_state_id();
wait_til_animation_frame.invoke(&[state_id.into()]);
future
}
pub fn create_object() -> ExternRef {
let config_ref = js!(r#"
function(){
return {};
}"#)
.invoke_and_return_object(&[]);
config_ref
}
pub fn create_array() -> ExternRef {
let config_ref = js!(r#"
function(){
return [];
}"#)
.invoke_and_return_object(&[]);
config_ref
}
pub fn add_to_array(array: &ExternRef, value: &ExternRef) {
let add_to_array = js!(r#"
function(array, value){
array.push(value);
}"#);
add_to_array.invoke(&[(array).into(), (value).into()]);
}