/
global_shortcut.rs
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/
global_shortcut.rs
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// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT
//! Global shortcut implementation.
use std::{
collections::HashMap,
fmt,
sync::{
mpsc::{channel, Sender},
Arc, Mutex,
},
};
use crate::{getter, Context, Message};
use tauri_runtime::{Error, GlobalShortcutManager, Result, UserEvent};
#[cfg(desktop)]
pub use wry::application::{
accelerator::{Accelerator, AcceleratorId},
global_shortcut::{GlobalShortcut, ShortcutManager as WryShortcutManager},
};
pub type GlobalShortcutListeners = Arc<Mutex<HashMap<AcceleratorId, Box<dyn Fn() + Send>>>>;
#[derive(Debug, Clone)]
pub enum GlobalShortcutMessage {
IsRegistered(Accelerator, Sender<bool>),
Register(Accelerator, Sender<Result<GlobalShortcutWrapper>>),
Unregister(GlobalShortcutWrapper, Sender<Result<()>>),
UnregisterAll(Sender<Result<()>>),
}
#[derive(Debug, Clone)]
pub struct GlobalShortcutWrapper(GlobalShortcut);
// SAFETY: usage outside of main thread is guarded, we use the event loop on such cases.
#[allow(clippy::non_send_fields_in_send_ty)]
unsafe impl Send for GlobalShortcutWrapper {}
/// Wrapper around [`WryShortcutManager`].
#[derive(Clone)]
pub struct GlobalShortcutManagerHandle<T: UserEvent> {
pub context: Context<T>,
pub shortcuts: Arc<Mutex<HashMap<String, (AcceleratorId, GlobalShortcutWrapper)>>>,
pub listeners: GlobalShortcutListeners,
}
// SAFETY: this is safe since the `Context` usage is guarded on `send_user_message`.
#[allow(clippy::non_send_fields_in_send_ty)]
unsafe impl<T: UserEvent> Sync for GlobalShortcutManagerHandle<T> {}
impl<T: UserEvent> fmt::Debug for GlobalShortcutManagerHandle<T> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("GlobalShortcutManagerHandle")
.field("context", &self.context)
.field("shortcuts", &self.shortcuts)
.finish()
}
}
impl<T: UserEvent> GlobalShortcutManager for GlobalShortcutManagerHandle<T> {
fn is_registered(&self, accelerator: &str) -> Result<bool> {
let (tx, rx) = channel();
getter!(
self,
rx,
Message::GlobalShortcut(GlobalShortcutMessage::IsRegistered(
accelerator.parse().expect("invalid accelerator"),
tx
))
)
}
fn register<F: Fn() + Send + 'static>(&mut self, accelerator: &str, handler: F) -> Result<()> {
let wry_accelerator: Accelerator = accelerator.parse().expect("invalid accelerator");
let id = wry_accelerator.clone().id();
let (tx, rx) = channel();
let shortcut = getter!(
self,
rx,
Message::GlobalShortcut(GlobalShortcutMessage::Register(wry_accelerator, tx))
)??;
self.listeners.lock().unwrap().insert(id, Box::new(handler));
self
.shortcuts
.lock()
.unwrap()
.insert(accelerator.into(), (id, shortcut));
Ok(())
}
fn unregister_all(&mut self) -> Result<()> {
let (tx, rx) = channel();
getter!(
self,
rx,
Message::GlobalShortcut(GlobalShortcutMessage::UnregisterAll(tx))
)??;
self.listeners.lock().unwrap().clear();
self.shortcuts.lock().unwrap().clear();
Ok(())
}
fn unregister(&mut self, accelerator: &str) -> Result<()> {
if let Some((accelerator_id, shortcut)) = self.shortcuts.lock().unwrap().remove(accelerator) {
let (tx, rx) = channel();
getter!(
self,
rx,
Message::GlobalShortcut(GlobalShortcutMessage::Unregister(shortcut, tx))
)??;
self.listeners.lock().unwrap().remove(&accelerator_id);
}
Ok(())
}
}
pub fn handle_global_shortcut_message(
message: GlobalShortcutMessage,
global_shortcut_manager: &Arc<Mutex<WryShortcutManager>>,
) {
match message {
GlobalShortcutMessage::IsRegistered(accelerator, tx) => tx
.send(
global_shortcut_manager
.lock()
.unwrap()
.is_registered(&accelerator),
)
.unwrap(),
GlobalShortcutMessage::Register(accelerator, tx) => tx
.send(
global_shortcut_manager
.lock()
.unwrap()
.register(accelerator)
.map(GlobalShortcutWrapper)
.map_err(|e| Error::GlobalShortcut(Box::new(e))),
)
.unwrap(),
GlobalShortcutMessage::Unregister(shortcut, tx) => tx
.send(
global_shortcut_manager
.lock()
.unwrap()
.unregister(shortcut.0)
.map_err(|e| Error::GlobalShortcut(Box::new(e))),
)
.unwrap(),
GlobalShortcutMessage::UnregisterAll(tx) => tx
.send(
global_shortcut_manager
.lock()
.unwrap()
.unregister_all()
.map_err(|e| Error::GlobalShortcut(Box::new(e))),
)
.unwrap(),
}
}