lib.rs
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mod data;
use artshop_common::types::MarkdownJson;
use data::icons::*;
use js_sys::JsString;
use log::Level;
use mogwai::prelude::*;
use web_sys::{RequestInit, RequestMode, Request, Response, MouseEvent};
use std::panic;
use wasm_bindgen::prelude::*;
#[derive(Clone)]
enum AppLogic {
Update,
Toggle,
Store,
}
fn md_to_html(source: &str) -> String {
use pulldown_cmark::{Parser, Options, html};
let parser = Parser::new_ext(source, Options::all());
let mut html_output = String::new();
html::push_html(&mut html_output, parser);
html_output
}
async fn md_from_db(patch :Option<i32>) -> MarkdownJson {
let window = web_sys::window().unwrap();
let mut opts = RequestInit::new();
opts.method("GET").mode(RequestMode::Cors);
let api_uri = match patch {
Some(i) => format!("/api/v0/markdowns/md-example?patch={}", i),
None => String::from("/api/v0/markdowns/md-example"),
};
let request = Request::new_with_str_and_init(&api_uri, &opts).unwrap();
request.headers().set("Accept", "application/json").unwrap();
let response = JsFuture::from(window.fetch_with_request(&request))
. await.unwrap()
. dyn_into::<Response>().unwrap();
let data = String::from( JsFuture::from(response.text().unwrap())
. await.unwrap()
. dyn_into::<JsString>().unwrap()
);
let data :MarkdownJson = serde_json::from_str(data.as_str()).unwrap();
data
}
async fn md_to_db(md :&MarkdownJson) {
let encoded = serde_json::to_string(&md).unwrap();
let window = web_sys::window().unwrap();
let mut opts = RequestInit::new();
opts . method("PUT")
. mode(RequestMode::Cors)
. body(Some(&encoded.into()));
let url_str = format!("/api/v0/markdowns/{}", md.name);
let request = Request::new_with_str_and_init(url_str.as_str(), &opts)
. unwrap();
request.headers().set("Content-Type", "application/json").unwrap();
let _response = JsFuture::from(window.fetch_with_request(&request))
. await.unwrap()
. dyn_into::<Response>().unwrap();
/* do something with the response here.... */
}
async fn editor_logic( mut rx_logic: broadcast::Receiver<AppLogic>
, tx_view: broadcast::Sender<String>
, mut rx_dom: broadcast::Receiver<Dom> )
{
let dom = rx_dom.next().await.unwrap();
let mut show_edit = false;
let mut md = md_from_db(Some(2)).await;
let container = match dom.inner_read() {
Either::Left(dom_js) =>
Some( ( dom_js
. to_owned()
. dyn_into::<Node>().unwrap()
. first_child().unwrap()
. first_child().unwrap()
. dyn_into::<HtmlElement>().unwrap()
, dom_js
. to_owned()
. dyn_into::<Node>().unwrap()
. child_nodes().get(1).unwrap()
. child_nodes().get(1).unwrap()
. dyn_into::<HtmlElement>().unwrap() )),
_ => None,
};
let cont_ref = container.as_ref();
let get_md = move || {
match cont_ref {
Some((md_cont, _)) => md_cont.inner_text(),
None => String::from(""),
}
};
let set_md = move |md :&str| {
match cont_ref {
Some((md_cont, _)) => md_cont.set_text_content(Some(md)),
None => (),
}
};
let update = move || {
match cont_ref {
Some((md_cont, view_cont)) =>
view_cont.set_inner_html(
md_to_html(md_cont.inner_text().as_str()).as_str() ),
None => (),
}
};
set_md(md.content.as_str());
update();
/* play with katex ==== */
let opts = katex::Opts::builder()
. output_type(katex::opts::OutputType::Mathml)
. build().unwrap();
let formula1 = katex::render_with_opts("E = mc^2", &opts).unwrap();
let formula2 = katex::render_with_opts("e^{i*\\pi} +1 = 0", &opts).unwrap();
if let Either::Left(dom_js) = dom.inner_read() {
dom_js . to_owned()
. dyn_into::<Node>().unwrap()
. child_nodes().get(1).unwrap()
. child_nodes().get(2).unwrap()
. dyn_into::<HtmlElement>().unwrap()
. set_inner_html(formula1.as_str())
};
if let Either::Left(dom_js) = dom.inner_read() {
dom_js . to_owned()
. dyn_into::<Node>().unwrap()
. child_nodes().get(1).unwrap()
. child_nodes().get(3).unwrap()
. dyn_into::<HtmlElement>().unwrap()
. set_inner_html(formula2.as_str())
};
/* =========== */
while let Some(msg) = rx_logic.next().await {
match msg {
AppLogic::Store => {
md.content = get_md();
md_to_db(&md).await;
},
AppLogic::Update => update(),
AppLogic::Toggle => {
show_edit = ! show_edit;
match show_edit {
true => tx_view . broadcast(String::from("block"))
. await.unwrap(),
false => tx_view . broadcast(String::from("none"))
. await.unwrap(),
};
},
}
}
}
fn editor_view( tx_logic: broadcast::Sender<AppLogic>
, rx_view: broadcast::Receiver<String>
, tx_dom: broadcast::Sender<Dom>
) -> ViewBuilder<Dom>
{
let ns = "http://www.w3.org/2000/svg";
let input_filter = tx_logic
. sink()
. contra_map(|_| AppLogic::Update);
let store_filter = tx_logic
. sink()
. contra_filter_map(|e :DomEvent| {
if let Either::Left(e) = e.clone_inner() {
let e = e.dyn_into::<MouseEvent>().unwrap();
match e.alt_key() {
true => Some(AppLogic::Store),
false => None
}
} else {
None
}
});
let toggle_filter = tx_logic
. sink()
. contra_map(|_| AppLogic::Toggle);
builder! {
<div class="input"
style:width="33%"
on:input=input_filter
capture:view=tx_dom.sink()>
<div contenteditable="true"
style:cursor="text"
style:display=("none", rx_view)>
<pre on:click=store_filter></pre>
</div>
<div>
<div>
<button>{select_icon()}</button>
<button>{save_icon()}</button>
<button>{discard_icon()}</button>
<button on:click=toggle_filter>{edit_icon()}</button>
</div>
<div></div>
<div></div>
<div></div>
</div>
</div>
}
}
#[wasm_bindgen(start)]
pub async fn main() -> Result<(), JsValue> {
panic::set_hook(Box::new(console_error_panic_hook::hook));
console_log::init_with_level(Level::Trace).unwrap();
let (tx_dom, rx_dom) = broadcast::bounded(1);
let (tx_logic, rx_logic) = broadcast::bounded(1);
let (tx_view, rx_view) = broadcast::bounded(1);
let comp = Component::from( editor_view(tx_logic, rx_view, tx_dom) )
. with_logic( editor_logic(rx_logic, tx_view, rx_dom) );
let page = Component::from(builder! {{comp}});
page.build()?.run()
}