zellij/zellij-tile/src/shim.rs
Tw 19b3f8366f
feat(plugin): add exec_cmd helper for executing command in host
Signed-off-by: Tw <wei.tan@intel.com>
Signed-off-by: Tw <tw19881113@gmail.com>
2021-09-09 11:45:03 +01:00

68 lines
1.5 KiB
Rust

use serde::{de::DeserializeOwned, Serialize};
use std::{io, path::Path};
use crate::data::*;
// Subscription Handling
pub fn subscribe(event_types: &[EventType]) {
object_to_stdout(&event_types);
unsafe { host_subscribe() };
}
pub fn unsubscribe(event_types: &[EventType]) {
object_to_stdout(&event_types);
unsafe { host_unsubscribe() };
}
// Plugin Settings
pub fn set_selectable(selectable: bool) {
unsafe { host_set_selectable(if selectable { 1 } else { 0 }) };
}
// Query Functions
pub fn get_plugin_ids() -> PluginIds {
unsafe { host_get_plugin_ids() };
object_from_stdin()
}
// Host Functions
pub fn open_file(path: &Path) {
object_to_stdout(&path);
unsafe { host_open_file() };
}
pub fn set_timeout(secs: f64) {
unsafe { host_set_timeout(secs) };
}
pub fn exec_cmd(cmd: &[&str]) {
object_to_stdout(&cmd);
unsafe { host_exec_cmd() };
}
// Internal Functions
#[doc(hidden)]
pub fn object_from_stdin<T: DeserializeOwned>() -> T {
let mut json = String::new();
io::stdin().read_line(&mut json).unwrap();
serde_json::from_str(&json).unwrap()
}
#[doc(hidden)]
pub fn object_to_stdout(object: &impl Serialize) {
println!("{}", serde_json::to_string(object).unwrap());
}
#[link(wasm_import_module = "zellij")]
extern "C" {
fn host_subscribe();
fn host_unsubscribe();
fn host_set_selectable(selectable: i32);
fn host_get_plugin_ids();
fn host_open_file();
fn host_set_timeout(secs: f64);
fn host_exec_cmd();
}