Graphite/frontend/wasm/src/helpers.rs

144 lines
3.5 KiB
Rust

use crate::JS_EDITOR_HANDLES;
use editor::input::keyboard::Key;
use editor::message_prelude::FrontendMessage;
use std::panic;
use wasm_bindgen::prelude::*;
/// When a panic occurs, notify the user and log the error to the JS console before the backend dies
pub fn panic_hook(info: &panic::PanicInfo) {
let panic_info = info.to_string();
let title = "The editor crashed — sorry about that".to_string();
let description = "An internal error occurred. Reload the editor to continue. Please report this by filing an issue on GitHub.".to_string();
log::error!("{}", info);
JS_EDITOR_HANDLES.with(|instances| {
instances.borrow_mut().values_mut().for_each(|instance| {
instance.send_frontend_message_to_js_rust_proxy(FrontendMessage::DisplayDialogPanic {
panic_info: panic_info.clone(),
title: title.clone(),
description: description.clone(),
})
})
});
}
/// The JavaScript `Error` type
#[wasm_bindgen]
extern "C" {
#[derive(Clone, Debug)]
pub type Error;
#[wasm_bindgen(constructor)]
pub fn new(msg: &str) -> Error;
}
/// Logging to the JS console
#[wasm_bindgen]
extern "C" {
#[wasm_bindgen(js_namespace = console)]
fn log(msg: &str, format: &str);
#[wasm_bindgen(js_namespace = console)]
fn info(msg: &str, format: &str);
#[wasm_bindgen(js_namespace = console)]
fn warn(msg: &str, format: &str);
#[wasm_bindgen(js_namespace = console)]
fn error(msg: &str, format: &str);
}
#[derive(Default)]
pub struct WasmLog;
impl log::Log for WasmLog {
fn enabled(&self, metadata: &log::Metadata) -> bool {
metadata.level() <= log::Level::Info
}
fn log(&self, record: &log::Record) {
let (log, name, color): (fn(&str, &str), &str, &str) = match record.level() {
log::Level::Trace => (log, "trace", "color:plum"),
log::Level::Debug => (log, "debug", "color:cyan"),
log::Level::Warn => (warn, "warn", "color:goldenrod"),
log::Level::Info => (info, "info", "color:mediumseagreen"),
log::Level::Error => (error, "error", "color:red"),
};
let msg = &format!("%c{}\t{}", name, record.args());
log(msg, color)
}
fn flush(&self) {}
}
/// Translate a keyboard key from its JS name to its Rust `Key` enum
pub fn translate_key(name: &str) -> Key {
use Key::*;
log::trace!("Key event received: {}", name);
match name.to_lowercase().as_str() {
"a" => KeyA,
"b" => KeyB,
"c" => KeyC,
"d" => KeyD,
"e" => KeyE,
"f" => KeyF,
"g" => KeyG,
"h" => KeyH,
"i" => KeyI,
"j" => KeyJ,
"k" => KeyK,
"l" => KeyL,
"m" => KeyM,
"n" => KeyN,
"o" => KeyO,
"p" => KeyP,
"q" => KeyQ,
"r" => KeyR,
"s" => KeyS,
"t" => KeyT,
"u" => KeyU,
"v" => KeyV,
"w" => KeyW,
"x" => KeyX,
"y" => KeyY,
"z" => KeyZ,
"0" => Key0,
"1" => Key1,
"2" => Key2,
"3" => Key3,
"4" => Key4,
"5" => Key5,
"6" => Key6,
"7" => Key7,
"8" => Key8,
"9" => Key9,
"enter" => KeyEnter,
"=" => KeyEquals,
"+" => KeyPlus,
"-" => KeyMinus,
"shift" => KeyShift,
// When using linux + chrome + the neo keyboard layout, the shift key is recognized as caps
"capslock" => KeyShift,
" " => KeySpace,
"control" => KeyControl,
"delete" => KeyDelete,
"backspace" => KeyBackspace,
"alt" => KeyAlt,
"escape" => KeyEscape,
"tab" => KeyTab,
"arrowup" => KeyArrowUp,
"arrowdown" => KeyArrowDown,
"arrowleft" => KeyArrowLeft,
"arrowright" => KeyArrowRight,
"[" => KeyLeftBracket,
"]" => KeyRightBracket,
"{" => KeyLeftCurlyBracket,
"}" => KeyRightCurlyBracket,
"pageup" => KeyPageUp,
"pagedown" => KeyPageDown,
"," => KeyComma,
"." => KeyPeriod,
_ => UnknownKey,
}
}