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// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT
//! [![](https://github.com/tauri-apps/tauri/raw/dev/.github/splash.png)](https://tauri.app)
//!
//! Tauri is a framework for building tiny, blazing fast binaries for all major desktop platforms.
//! Developers can integrate any front-end framework that compiles to HTML, JS and CSS for building their user interface.
//! The backend of the application is a rust-sourced binary with an API that the front-end can interact with.
//!
//! # Cargo features
//!
//! The following are a list of [Cargo features](https://doc.rust-lang.org/stable/cargo/reference/manifest.html#the-features-section) that can be enabled or disabled:
//!
//! - **wry** *(enabled by default)*: Enables the [wry](https://github.com/tauri-apps/wry) runtime. Only disable it if you want a custom runtime.
//! - **common-controls-v6** *(enabled by default)*: Enables [Common Controls v6](https://learn.microsoft.com/en-us/windows/win32/controls/common-control-versions) support on Windows, mainly for the predefined `about` menu item.
//! - **unstable**: Enables unstable features. Be careful, it might introduce breaking changes in future minor releases.
//! - **tracing**: Enables [`tracing`](https://docs.rs/tracing/latest/tracing) for window startup, plugins, `Window::eval`, events, IPC, updater and custom protocol request handlers.
//! - **test**: Enables the [`mod@test`] module exposing unit test helpers.
//! - **objc-exception**: Wrap each msg_send! in a @try/@catch and panics if an exception is caught, preventing Objective-C from unwinding into Rust.
//! - **linux-ipc-protocol**: Use custom protocol for faster IPC on Linux. Requires webkit2gtk v2.40 or above.
//! - **linux-libxdo**: Enables linking to libxdo which enables Cut, Copy, Paste and SelectAll menu items to work on Linux.
//! - **isolation**: Enables the isolation pattern. Enabled by default if the `app > security > pattern > use` config option is set to `isolation` on the `tauri.conf.json` file.
//! - **custom-protocol**: Feature managed by the Tauri CLI. When enabled, Tauri assumes a production environment instead of a development one.
//! - **devtools**: Enables the developer tools (Web inspector) and [`window::Window#method.open_devtools`]. Enabled by default on debug builds.
//! On macOS it uses private APIs, so you can't enable it if your app will be published to the App Store.
//! - **native-tls**: Provides TLS support to connect over HTTPS.
//! - **native-tls-vendored**: Compile and statically link to a vendored copy of OpenSSL.
//! - **rustls-tls**: Provides TLS support to connect over HTTPS using rustls.
//! - **process-relaunch-dangerous-allow-symlink-macos**: Allows the [`process::current_binary`] function to allow symlinks on macOS (this is dangerous, see the Security section in the documentation website).
//! - **tray-icon**: Enables application tray icon APIs. Enabled by default if the `trayIcon` config is defined on the `tauri.conf.json` file.
//! - **macos-private-api**: Enables features only available in **macOS**'s private APIs, currently the `transparent` window functionality and the `fullScreenEnabled` preference setting to `true`. Enabled by default if the `tauri > macosPrivateApi` config flag is set to `true` on the `tauri.conf.json` file.
//! - **webview-data-url**: Enables usage of data URLs on the webview.
//! - **compression** *(enabled by default): Enables asset compression. You should only disable this if you want faster compile times in release builds - it produces larger binaries.
//! - **config-json5**: Adds support to JSON5 format for `tauri.conf.json`.
//! - **config-toml**: Adds support to TOML format for the configuration `Tauri.toml`.
//! - **icon-ico**: Adds support to set `.ico` window icons. Enables [`Icon::File`] and [`Icon::Raw`] variants.
//! - **icon-png**: Adds support to set `.png` window icons. Enables [`Icon::File`] and [`Icon::Raw`] variants.
//! - **macos-proxy**: Adds support for [`WebviewBuilder::proxy_url`] on macOS. Requires macOS 14+.
//!
//! ## Cargo allowlist features
//!
//! The following are a list of [Cargo features](https://doc.rust-lang.org/stable/cargo/reference/manifest.html#the-features-section) that enables commands for Tauri's API package.
//! These features are automatically enabled by the Tauri CLI based on the `allowlist` configuration under `tauri.conf.json`.
//!
//! ### Protocol allowlist
//!
//! - **protocol-asset**: Enables the `asset` custom protocol.
#![doc(
html_logo_url = "https://github.com/tauri-apps/tauri/raw/dev/app-icon.png",
html_favicon_url = "https://github.com/tauri-apps/tauri/raw/dev/app-icon.png"
)]
#![warn(missing_docs, rust_2018_idioms)]
#![cfg_attr(docsrs, feature(doc_cfg))]
/// Setups the binding that initializes an iOS plugin.
#[cfg(target_os = "ios")]
#[macro_export]
macro_rules! ios_plugin_binding {
($fn_name: ident) => {
tauri::swift_rs::swift!(fn $fn_name() -> *const ::std::ffi::c_void);
}
}
#[cfg(target_os = "ios")]
#[doc(hidden)]
pub use cocoa;
#[cfg(target_os = "macos")]
#[doc(hidden)]
pub use embed_plist;
pub use error::{Error, Result};
use ipc::RuntimeAuthority;
pub use resources::{Resource, ResourceId, ResourceTable};
#[cfg(target_os = "ios")]
#[doc(hidden)]
pub use swift_rs;
#[cfg(mobile)]
pub use tauri_macros::mobile_entry_point;
pub use tauri_macros::{command, generate_handler};
pub use url::Url;
pub(crate) mod app;
pub mod async_runtime;
mod error;
mod event;
pub mod ipc;
mod manager;
mod pattern;
pub mod plugin;
pub(crate) mod protocol;
mod resources;
mod vibrancy;
pub mod webview;
pub mod window;
use tauri_runtime as runtime;
#[cfg(target_os = "ios")]
mod ios;
#[cfg(desktop)]
pub mod menu;
/// Path APIs.
pub mod path;
pub mod process;
/// The allowlist scopes.
pub mod scope;
mod state;
#[cfg(all(desktop, feature = "tray-icon"))]
#[cfg_attr(docsrs, doc(cfg(all(desktop, feature = "tray-icon"))))]
pub mod tray;
pub use tauri_utils as utils;
pub use http;
/// A Tauri [`Runtime`] wrapper around wry.
#[cfg(feature = "wry")]
#[cfg_attr(docsrs, doc(cfg(feature = "wry")))]
pub type Wry = tauri_runtime_wry::Wry<EventLoopMessage>;
/// A Tauri [`RuntimeHandle`] wrapper around wry.
#[cfg(feature = "wry")]
#[cfg_attr(docsrs, doc(cfg(feature = "wry")))]
pub type WryHandle = tauri_runtime_wry::WryHandle<EventLoopMessage>;
#[cfg(all(feature = "wry", target_os = "android"))]
#[cfg_attr(docsrs, doc(cfg(all(feature = "wry", target_os = "android"))))]
#[doc(hidden)]
#[macro_export]
macro_rules! android_binding {
($domain:ident, $package:ident, $main: ident, $wry: path) => {
use $wry::{
android_setup,
prelude::{JClass, JNIEnv, JString},
};
::tauri::wry::android_binding!($domain, $package, $wry);
::tauri::tao::android_binding!(
$domain,
$package,
WryActivity,
android_setup,
$main,
::tauri::tao
);
::tauri::tao::platform::android::prelude::android_fn!(
app_tauri,
plugin,
PluginManager,
handlePluginResponse,
[i32, JString, JString],
);
::tauri::tao::platform::android::prelude::android_fn!(
app_tauri,
plugin,
PluginManager,
sendChannelData,
[i64, JString],
);
// this function is a glue between PluginManager.kt > handlePluginResponse and Rust
#[allow(non_snake_case)]
pub fn handlePluginResponse(
mut env: JNIEnv,
_: JClass,
id: i32,
success: JString,
error: JString,
) {
::tauri::handle_android_plugin_response(&mut env, id, success, error);
}
// this function is a glue between PluginManager.kt > sendChannelData and Rust
#[allow(non_snake_case)]
pub fn sendChannelData(mut env: JNIEnv, _: JClass, id: i64, data: JString) {
::tauri::send_channel_data(&mut env, id, data);
}
};
}
#[cfg(all(feature = "wry", target_os = "android"))]
#[doc(hidden)]
pub use plugin::mobile::{handle_android_plugin_response, send_channel_data};
#[cfg(all(feature = "wry", target_os = "android"))]
#[doc(hidden)]
pub use tauri_runtime_wry::{tao, wry};
/// A task to run on the main thread.
pub type SyncTask = Box<dyn FnOnce() + Send>;
use serde::{Deserialize, Serialize};
use std::{
collections::HashMap,
fmt::{self, Debug},
sync::MutexGuard,
};
#[cfg(feature = "wry")]
#[cfg_attr(docsrs, doc(cfg(feature = "wry")))]
pub use tauri_runtime_wry::webview_version;
#[cfg(target_os = "macos")]
#[cfg_attr(docsrs, doc(cfg(target_os = "macos")))]
pub use runtime::ActivationPolicy;
#[cfg(target_os = "macos")]
pub use self::utils::TitleBarStyle;
pub use self::event::{Event, EventId, EventTarget};
pub use {
self::app::{
App, AppHandle, AssetResolver, Builder, CloseRequestApi, RunEvent, WebviewEvent, WindowEvent,
},
self::manager::Asset,
self::runtime::{
webview::WebviewAttributes,
window::{
dpi::{LogicalPosition, LogicalSize, PhysicalPosition, PhysicalSize, Pixel, Position, Size},
CursorIcon, FileDropEvent,
},
DeviceEventFilter, UserAttentionType,
},
self::state::{State, StateManager},
self::utils::{
assets::Assets,
config::{Config, WebviewUrl},
Env, PackageInfo, Theme,
},
self::webview::{Webview, WebviewWindow, WebviewWindowBuilder},
self::window::{Monitor, Window},
scope::*,
};
#[cfg(feature = "unstable")]
#[cfg_attr(docsrs, doc(cfg(feature = "unstable")))]
pub use {self::webview::WebviewBuilder, self::window::WindowBuilder};
/// The Tauri version.
pub const VERSION: &str = env!("CARGO_PKG_VERSION");
#[cfg(target_os = "ios")]
#[doc(hidden)]
pub fn log_stdout() {
use std::{
ffi::CString,
fs::File,
io::{BufRead, BufReader},
os::unix::prelude::*,
thread,
};
let mut logpipe: [RawFd; 2] = Default::default();
unsafe {
libc::pipe(logpipe.as_mut_ptr());
libc::dup2(logpipe[1], libc::STDOUT_FILENO);
libc::dup2(logpipe[1], libc::STDERR_FILENO);
}
thread::spawn(move || unsafe {
let file = File::from_raw_fd(logpipe[0]);
let mut reader = BufReader::new(file);
let mut buffer = String::new();
loop {
buffer.clear();
if let Ok(len) = reader.read_line(&mut buffer) {
if len == 0 {
break;
} else if let Ok(msg) = CString::new(buffer.as_bytes())
.map_err(|_| ())
.and_then(|c| c.into_string().map_err(|_| ()))
{
log::info!("{}", msg);
}
}
}
});
}
/// The user event type.
#[derive(Debug, Clone)]
pub enum EventLoopMessage {
/// An event from a menu item, could be on the window menu bar, application menu bar (on macOS) or tray icon menu.
#[cfg(desktop)]
MenuEvent(menu::MenuEvent),
/// An event from a menu item, could be on the window menu bar, application menu bar (on macOS) or tray icon menu.
#[cfg(all(desktop, feature = "tray-icon"))]
#[cfg_attr(docsrs, doc(cfg(all(desktop, feature = "tray-icon"))))]
TrayIconEvent(tray::TrayIconEvent),
}
/// The webview runtime interface. A wrapper around [`runtime::Runtime`] with the proper user event type associated.
pub trait Runtime: runtime::Runtime<EventLoopMessage> {}
/// The webview runtime handle. A wrapper arond [`runtime::RuntimeHandle`] with the proper user event type associated.
pub trait RuntimeHandle: runtime::RuntimeHandle<EventLoopMessage> {}
impl<W: runtime::Runtime<EventLoopMessage>> Runtime for W {}
impl<R: runtime::RuntimeHandle<EventLoopMessage>> RuntimeHandle for R {}
/// Reads the config file at compile time and generates a [`Context`] based on its content.
///
/// The default config file path is a `tauri.conf.json` file inside the Cargo manifest directory of
/// the crate being built.
///
/// # Custom Config Path
///
/// You may pass a string literal to this macro to specify a custom path for the Tauri config file.
/// If the path is relative, it will be search for relative to the Cargo manifest of the compiling
/// crate.
///
/// # Note
///
/// This macro should not be called if you are using [`tauri-build`] to generate the context from
/// inside your build script as it will just cause excess computations that will be discarded. Use
/// either the [`tauri-build`] method or this macro - not both.
///
/// [`tauri-build`]: https://docs.rs/tauri-build
pub use tauri_macros::generate_context;
/// Include a [`Context`] that was generated by [`tauri-build`] inside your build script.
///
/// You should either use [`tauri-build`] and this macro to include the compile time generated code,
/// or [`generate_context!`]. Do not use both at the same time, as they generate the same code and
/// will cause excess computations that will be discarded.
///
/// [`tauri-build`]: https://docs.rs/tauri-build
#[macro_export]
macro_rules! tauri_build_context {
() => {
include!(concat!(env!("OUT_DIR"), "/tauri-build-context.rs"))
};
}
pub use pattern::Pattern;
/// A icon definition.
#[derive(Debug, Clone)]
#[non_exhaustive]
pub enum Icon {
/// Icon from file path.
#[cfg(any(feature = "icon-ico", feature = "icon-png"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "icon-ico", feature = "icon-png"))))]
File(std::path::PathBuf),
/// Icon from raw RGBA bytes. Width and height is parsed at runtime.
#[cfg(any(feature = "icon-ico", feature = "icon-png"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "icon-ico", feature = "icon-png"))))]
Raw(Vec<u8>),
/// Icon from raw RGBA bytes.
Rgba {
/// RGBA bytes of the icon image.
rgba: Vec<u8>,
/// Icon width.
width: u32,
/// Icon height.
height: u32,
},
}
impl TryFrom<Icon> for runtime::Icon {
type Error = Error;
fn try_from(icon: Icon) -> Result<Self> {
#[allow(irrefutable_let_patterns)]
if let Icon::Rgba {
rgba,
width,
height,
} = icon
{
Ok(Self {
rgba,
width,
height,
})
} else {
#[cfg(not(any(feature = "icon-ico", feature = "icon-png")))]
panic!("unexpected Icon variant");
#[cfg(any(feature = "icon-ico", feature = "icon-png"))]
{
let bytes = match icon {
Icon::File(p) => std::fs::read(p)?,
Icon::Raw(r) => r,
Icon::Rgba { .. } => unreachable!(),
};
let extension = infer::get(&bytes)
.expect("could not determine icon extension")
.extension();
match extension {
#[cfg(feature = "icon-ico")]
"ico" => {
let icon_dir = ico::IconDir::read(std::io::Cursor::new(bytes))?;
let entry = &icon_dir.entries()[0];
Ok(Self {
rgba: entry.decode()?.rgba_data().to_vec(),
width: entry.width(),
height: entry.height(),
})
}
#[cfg(feature = "icon-png")]
"png" => {
let decoder = png::Decoder::new(std::io::Cursor::new(bytes));
let mut reader = decoder.read_info()?;
let mut buffer = Vec::new();
while let Ok(Some(row)) = reader.next_row() {
buffer.extend(row.data());
}
Ok(Self {
rgba: buffer,
width: reader.info().width,
height: reader.info().height,
})
}
_ => panic!(
"image `{extension}` extension not supported; please file a Tauri feature request. `png` or `ico` icons are supported with the `icon-png` and `icon-ico` feature flags"
),
}
}
}
}
}
/// User supplied data required inside of a Tauri application.
///
/// # Stability
/// This is the output of the [`generate_context`] macro, and is not considered part of the stable API.
/// Unless you know what you are doing and are prepared for this type to have breaking changes, do not create it yourself.
pub struct Context<A: Assets> {
pub(crate) config: Config,
pub(crate) assets: Box<A>,
pub(crate) default_window_icon: Option<Icon>,
pub(crate) app_icon: Option<Vec<u8>>,
#[cfg(all(desktop, feature = "tray-icon"))]
pub(crate) tray_icon: Option<Icon>,
pub(crate) package_info: PackageInfo,
pub(crate) _info_plist: (),
pub(crate) pattern: Pattern,
pub(crate) runtime_authority: RuntimeAuthority,
}
impl<A: Assets> fmt::Debug for Context<A> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let mut d = f.debug_struct("Context");
d.field("config", &self.config)
.field("default_window_icon", &self.default_window_icon)
.field("app_icon", &self.app_icon)
.field("package_info", &self.package_info)
.field("pattern", &self.pattern);
#[cfg(all(desktop, feature = "tray-icon"))]
d.field("tray_icon", &self.tray_icon);
d.finish()
}
}
impl<A: Assets> Context<A> {
/// The config the application was prepared with.
#[inline(always)]
pub fn config(&self) -> &Config {
&self.config
}
/// A mutable reference to the config the application was prepared with.
#[inline(always)]
pub fn config_mut(&mut self) -> &mut Config {
&mut self.config
}
/// The assets to be served directly by Tauri.
#[inline(always)]
pub fn assets(&self) -> &A {
&self.assets
}
/// A mutable reference to the assets to be served directly by Tauri.
#[inline(always)]
pub fn assets_mut(&mut self) -> &mut A {
&mut self.assets
}
/// The default window icon Tauri should use when creating windows.
#[inline(always)]
pub fn default_window_icon(&self) -> Option<&Icon> {
self.default_window_icon.as_ref()
}
/// A mutable reference to the default window icon Tauri should use when creating windows.
#[inline(always)]
pub fn default_window_icon_mut(&mut self) -> &mut Option<Icon> {
&mut self.default_window_icon
}
/// The icon to use on the system tray UI.
#[cfg(all(desktop, feature = "tray-icon"))]
#[cfg_attr(docsrs, doc(cfg(all(desktop, feature = "tray-icon"))))]
#[inline(always)]
pub fn tray_icon(&self) -> Option<&Icon> {
self.tray_icon.as_ref()
}
/// A mutable reference to the icon to use on the tray icon.
#[cfg(all(desktop, feature = "tray-icon"))]
#[cfg_attr(docsrs, doc(cfg(all(desktop, feature = "tray-icon"))))]
#[inline(always)]
pub fn tray_icon_mut(&mut self) -> &mut Option<Icon> {
&mut self.tray_icon
}
/// Package information.
#[inline(always)]
pub fn package_info(&self) -> &PackageInfo {
&self.package_info
}
/// A mutable reference to the package information.
#[inline(always)]
pub fn package_info_mut(&mut self) -> &mut PackageInfo {
&mut self.package_info
}
/// The application pattern.
#[inline(always)]
pub fn pattern(&self) -> &Pattern {
&self.pattern
}
/// A mutable reference to the resolved ACL.
///
/// # Stability
///
/// This API is unstable.
#[doc(hidden)]
#[inline(always)]
pub fn runtime_authority_mut(&mut self) -> &mut RuntimeAuthority {
&mut self.runtime_authority
}
/// Create a new [`Context`] from the minimal required items.
#[inline(always)]
#[allow(clippy::too_many_arguments)]
pub fn new(
config: Config,
assets: Box<A>,
default_window_icon: Option<Icon>,
app_icon: Option<Vec<u8>>,
package_info: PackageInfo,
info_plist: (),
pattern: Pattern,
runtime_authority: RuntimeAuthority,
) -> Self {
Self {
config,
assets,
default_window_icon,
app_icon,
#[cfg(all(desktop, feature = "tray-icon"))]
tray_icon: None,
package_info,
_info_plist: info_plist,
pattern,
runtime_authority,
}
}
/// Sets the app tray icon.
#[cfg(all(desktop, feature = "tray-icon"))]
#[cfg_attr(docsrs, doc(cfg(all(desktop, feature = "tray-icon"))))]
#[inline(always)]
pub fn set_tray_icon(&mut self, icon: Icon) {
self.tray_icon.replace(icon);
}
/// Sets the app shell scope.
#[cfg(shell_scope)]
#[inline(always)]
pub fn set_shell_scope(&mut self, scope: scope::ShellScopeConfig) {
self.shell_scope = scope;
}
}
// TODO: expand these docs
/// Manages a running application.
pub trait Manager<R: Runtime>: sealed::ManagerBase<R> {
/// The application handle associated with this manager.
fn app_handle(&self) -> &AppHandle<R> {
self.managed_app_handle()
}
/// The [`Config`] the manager was created with.
fn config(&self) -> &Config {
self.manager().config()
}
/// The [`PackageInfo`] the manager was created with.
fn package_info(&self) -> &PackageInfo {
self.manager().package_info()
}
/// Listen to an emitted event to any [target](EventTarget).
///
/// # Examples
/// ```
/// use tauri::Manager;
///
/// #[tauri::command]
/// fn synchronize(window: tauri::Window) {
/// // emits the synchronized event to all windows
/// window.emit("synchronized", ());
/// }
///
/// tauri::Builder::default()
/// .setup(|app| {
/// app.listen_any("synchronized", |event| {
/// println!("app is in sync");
/// });
/// Ok(())
/// })
/// .invoke_handler(tauri::generate_handler![synchronize]);
/// ```
fn listen_any<F>(&self, event: impl Into<String>, handler: F) -> EventId
where
F: Fn(Event) + Send + 'static,
{
self
.manager()
.listen(event.into(), EventTarget::Any, handler)
}
/// Remove an event listener.
///
/// # Examples
/// ```
/// use tauri::Manager;
///
/// tauri::Builder::default()
/// .setup(|app| {
/// let handle = app.handle().clone();
/// let handler = app.listen_any("ready", move |event| {
/// println!("app is ready");
///
/// // we no longer need to listen to the event
/// // we also could have used `app.once_global` instead
/// handle.unlisten(event.id());
/// });
///
/// // stop listening to the event when you do not need it anymore
/// app.unlisten(handler);
///
///
/// Ok(())
/// });
/// ```
fn unlisten(&self, id: EventId) {
self.manager().unlisten(id)
}
/// Listens once to an emitted event to any [target](EventTarget) .
///
/// See [`Self::listen_any`] for more information.
fn once_any<F>(&self, event: impl Into<String>, handler: F) -> EventId
where
F: FnOnce(Event) + Send + 'static,
{
self.manager().once(event.into(), EventTarget::Any, handler)
}
/// Emits an event to all [targets](EventTarget).
///
/// # Examples
/// ```
/// use tauri::Manager;
///
/// #[tauri::command]
/// fn synchronize(app: tauri::AppHandle) {
/// // emits the synchronized event to all webviews
/// app.emit("synchronized", ());
/// }
/// ```
#[cfg_attr(
feature = "tracing",
tracing::instrument("app::emit", skip(self, payload))
)]
fn emit<S: Serialize + Clone>(&self, event: &str, payload: S) -> Result<()> {
self.manager().emit(event, payload)
}
/// Emits an event to all [targets](EventTarget) matching the given target.
///
/// # Examples
/// ```
/// use tauri::{Manager, EventTarget};
///
/// #[tauri::command]
/// fn download(app: tauri::AppHandle) {
/// for i in 1..100 {
/// std::thread::sleep(std::time::Duration::from_millis(150));
/// // emit a download progress event to all listeners
/// app.emit_to(EventTarget::any(), "download-progress", i);
/// // emit an event to listeners that used App::listen or AppHandle::listen
/// app.emit_to(EventTarget::app(), "download-progress", i);
/// // emit an event to any webview/window/webviewWindow matching the given label
/// app.emit_to("updater", "download-progress", i); // similar to using EventTarget::labeled
/// app.emit_to(EventTarget::labeled("updater"), "download-progress", i);
/// // emit an event to listeners that used WebviewWindow::listen
/// app.emit_to(EventTarget::webview_window("updater"), "download-progress", i);
/// }
/// }
/// ```
#[cfg_attr(
feature = "tracing",
tracing::instrument("app::emit::to", skip(self, target, payload), fields(target))
)]
fn emit_to<I, S>(&self, target: I, event: &str, payload: S) -> Result<()>
where
I: Into<EventTarget>,
S: Serialize + Clone,
{
let target = target.into();
#[cfg(feature = "tracing")]
tracing::Span::current().record("target", format!("{target:?}"));
match target {
// if targeting all, emit to all using emit without filter
EventTarget::Any => self.manager().emit(event, payload),
// if targeting any label, emit using emit_filter and filter labels
EventTarget::AnyLabel {
label: target_label,
} => self.manager().emit_filter(event, payload, |t| match t {
EventTarget::Window { label }
| EventTarget::Webview { label }
| EventTarget::WebviewWindow { label } => label == &target_label,
_ => false,
}),
// otherwise match same target
_ => self.manager().emit_filter(event, payload, |t| t == &target),
}
}
/// Emits an event to all [targets](EventTarget) based on the given filter.
///
/// # Examples
/// ```
/// use tauri::{Manager, EventTarget};
///
/// #[tauri::command]
/// fn download(app: tauri::AppHandle) {
/// for i in 1..100 {
/// std::thread::sleep(std::time::Duration::from_millis(150));
/// // emit a download progress event to the updater window
/// app.emit_filter("download-progress", i, |t| match t {
/// EventTarget::WebviewWindow { label } => label == "main",
/// _ => false,
/// });
/// }
/// }
/// ```
#[cfg_attr(
feature = "tracing",
tracing::instrument("app::emit::filter", skip(self, payload, filter))
)]
fn emit_filter<S, F>(&self, event: &str, payload: S, filter: F) -> Result<()>
where
S: Serialize + Clone,
F: Fn(&EventTarget) -> bool,
{
self.manager().emit_filter(event, payload, filter)
}
/// Fetch a single window from the manager.
#[cfg(feature = "unstable")]
#[cfg_attr(docsrs, doc(cfg(feature = "unstable")))]
fn get_window(&self, label: &str) -> Option<Window<R>> {
self.manager().get_window(label)
}
/// Fetch the focused window. Returns `None` if there is not any focused window.
#[cfg(feature = "unstable")]
#[cfg_attr(docsrs, doc(cfg(feature = "unstable")))]
fn get_focused_window(&self) -> Option<Window<R>> {
self.manager().get_focused_window()
}
/// Fetch all managed windows.
#[cfg(feature = "unstable")]
#[cfg_attr(docsrs, doc(cfg(feature = "unstable")))]
fn windows(&self) -> HashMap<String, Window<R>> {
self.manager().windows()
}
/// Fetch a single webview from the manager.
#[cfg(feature = "unstable")]
#[cfg_attr(docsrs, doc(cfg(feature = "unstable")))]
fn get_webview(&self, label: &str) -> Option<Webview<R>> {
self.manager().get_webview(label)
}
/// Fetch all managed webviews.
#[cfg(feature = "unstable")]
#[cfg_attr(docsrs, doc(cfg(feature = "unstable")))]
fn webviews(&self) -> HashMap<String, Webview<R>> {
self.manager().webviews()
}
/// Fetch a single webview window from the manager.
fn get_webview_window(&self, label: &str) -> Option<WebviewWindow<R>> {
self.manager().get_webview(label).and_then(|webview| {
if webview.window().is_webview_window {
Some(WebviewWindow { webview })
} else {
None
}
})
}
/// Fetch all managed webview windows.
fn webview_windows(&self) -> HashMap<String, WebviewWindow<R>> {
self
.manager()
.webviews()
.into_iter()
.filter_map(|(label, webview)| {
if webview.window().is_webview_window {
Some((label, WebviewWindow { webview }))
} else {
None
}
})
.collect::<HashMap<_, _>>()
}
/// Add `state` to the state managed by the application.
///
/// If the state for the `T` type has previously been set, the state is unchanged and false is returned. Otherwise true is returned.
///
/// Managed state can be retrieved by any command handler via the
/// [`State`] guard. In particular, if a value of type `T`
/// is managed by Tauri, adding `State<T>` to the list of arguments in a
/// command handler instructs Tauri to retrieve the managed value.
/// Additionally, [`state`](Self#method.state) can be used to retrieve the value manually.
///
/// # Mutability
///
/// Since the managed state is global and must be [`Send`] + [`Sync`], mutations can only happen through interior mutability:
///
/// ```rust,no_run
/// use std::{collections::HashMap, sync::Mutex};
/// use tauri::State;
/// // here we use Mutex to achieve interior mutability
/// struct Storage {
/// store: Mutex<HashMap<u64, String>>,
/// }
/// struct Connection;
/// struct DbConnection {
/// db: Mutex<Option<Connection>>,
/// }
///
/// #[tauri::command]
/// fn connect(connection: State<DbConnection>) {
/// // initialize the connection, mutating the state with interior mutability
/// *connection.db.lock().unwrap() = Some(Connection {});
/// }
///
/// #[tauri::command]
/// fn storage_insert(key: u64, value: String, storage: State<Storage>) {
/// // mutate the storage behind the Mutex
/// storage.store.lock().unwrap().insert(key, value);
/// }
///
/// tauri::Builder::default()
/// .manage(Storage { store: Default::default() })
/// .manage(DbConnection { db: Default::default() })
/// .invoke_handler(tauri::generate_handler![connect, storage_insert])
/// // on an actual app, remove the string argument
/// .run(tauri::generate_context!("test/fixture/src-tauri/tauri.conf.json"))
/// .expect("error while running tauri application");
/// ```
///
/// # Examples
///
/// ```rust,no_run
/// use tauri::{Manager, State};
///
/// struct MyInt(isize);
/// struct MyString(String);
///
/// #[tauri::command]
/// fn int_command(state: State<MyInt>) -> String {
/// format!("The stateful int is: {}", state.0)
/// }
///
/// #[tauri::command]
/// fn string_command<'r>(state: State<'r, MyString>) {
/// println!("state: {}", state.inner().0);
/// }
///
/// tauri::Builder::default()
/// .setup(|app| {
/// app.manage(MyInt(0));
/// app.manage(MyString("tauri".into()));
/// // `MyInt` is already managed, so `manage()` returns false
/// assert!(!app.manage(MyInt(1)));
/// // read the `MyInt` managed state with the turbofish syntax
/// let int = app.state::<MyInt>();
/// assert_eq!(int.0, 0);
/// // read the `MyString` managed state with the `State` guard
/// let val: State<MyString> = app.state();
/// assert_eq!(val.0, "tauri");
/// Ok(())
/// })
/// .invoke_handler(tauri::generate_handler![int_command, string_command])
/// // on an actual app, remove the string argument
/// .run(tauri::generate_context!("test/fixture/src-tauri/tauri.conf.json"))
/// .expect("error while running tauri application");
/// ```
fn manage<T>(&self, state: T) -> bool
where
T: Send + Sync + 'static,
{
self.manager().state().set(state)
}
/// Retrieves the managed state for the type `T`.
///
/// # Panics
///
/// Panics if the state for the type `T` has not been previously [managed](Self::manage).
/// Use [try_state](Self::try_state) for a non-panicking version.
fn state<T>(&self) -> State<'_, T>
where
T: Send + Sync + 'static,
{
self
.manager()
.state
.try_get()
.expect("state() called before manage() for given type")
}
/// Attempts to retrieve the managed state for the type `T`.
///
/// Returns `Some` if the state has previously been [managed](Self::manage). Otherwise returns `None`.
fn try_state<T>(&self) -> Option<State<'_, T>>
where
T: Send + Sync + 'static,
{
self.manager().state.try_get()
}
/// Get a reference to the resources table.
fn resources_table(&self) -> MutexGuard<'_, ResourceTable> {
self.manager().resources_table()
}
/// Gets the managed [`Env`].
fn env(&self) -> Env {
self.state::<Env>().inner().clone()
}
/// Gets the scope for the asset protocol.
#[cfg(feature = "protocol-asset")]
fn asset_protocol_scope(&self) -> scope::fs::Scope {
self.state::<Scopes>().inner().asset_protocol.clone()
}
/// The path resolver.
fn path(&self) -> &crate::path::PathResolver<R> {
self.state::<crate::path::PathResolver<R>>().inner()
}
/// Adds a capability to the app.
///
/// # Examples
/// ```
/// use tauri::Manager;
///
/// tauri::Builder::default()
/// .setup(|app| {
/// #[cfg(feature = "beta")]
/// app.add_capability(include_str!("../capabilities/beta.json"));
/// Ok(())
/// });
/// ```
fn add_capability(&self, capability: &'static str) -> Result<()> {
self
.manager()
.runtime_authority
.lock()
.unwrap()
.add_capability(capability.parse().expect("invalid capability"))
}
}
/// Prevent implementation details from leaking out of the [`Manager`] trait.
pub(crate) mod sealed {
use super::Runtime;
use crate::{app::AppHandle, manager::AppManager};
use std::sync::Arc;
/// A running [`Runtime`] or a dispatcher to it.
pub enum RuntimeOrDispatch<'r, R: Runtime> {
/// Reference to the running [`Runtime`].
Runtime(&'r R),
/// Handle to the running [`Runtime`].
RuntimeHandle(R::Handle),
/// A dispatcher to the running [`Runtime`].
Dispatch(R::WindowDispatcher),
}
/// Managed handle to the application runtime.
pub trait ManagerBase<R: Runtime> {
fn manager(&self) -> &AppManager<R>;
fn manager_owned(&self) -> Arc<AppManager<R>>;
fn runtime(&self) -> RuntimeOrDispatch<'_, R>;
fn managed_app_handle(&self) -> &AppHandle<R>;
}
}
#[derive(Deserialize)]
#[serde(untagged)]
pub(crate) enum IconDto {
#[cfg(any(feature = "icon-png", feature = "icon-ico"))]
File(std::path::PathBuf),
#[cfg(any(feature = "icon-png", feature = "icon-ico"))]
Raw(Vec<u8>),
Rgba {
rgba: Vec<u8>,
width: u32,
height: u32,
},
}
impl From<IconDto> for Icon {
fn from(icon: IconDto) -> Self {
match icon {
#[cfg(any(feature = "icon-png", feature = "icon-ico"))]
IconDto::File(path) => Self::File(path),
#[cfg(any(feature = "icon-png", feature = "icon-ico"))]
IconDto::Raw(raw) => Self::Raw(raw),
IconDto::Rgba {
rgba,
width,
height,
} => Self::Rgba {
rgba,
width,
height,
},
}
}
}
#[allow(unused)]
macro_rules! run_main_thread {
($handle:ident, $ex:expr) => {{
use std::sync::mpsc::channel;
let (tx, rx) = channel();
let task = move || {
let f = $ex;
let _ = tx.send(f());
};
$handle
.run_on_main_thread(task)
.and_then(|_| rx.recv().map_err(|_| crate::Error::FailedToReceiveMessage))
}};
}
#[allow(unused)]
pub(crate) use run_main_thread;
#[cfg(any(test, feature = "test"))]
#[cfg_attr(docsrs, doc(cfg(feature = "test")))]
pub mod test;
#[cfg(test)]
mod tests {
use cargo_toml::Manifest;
use std::{env::var, fs::read_to_string, path::PathBuf, sync::OnceLock};
static MANIFEST: OnceLock<Manifest> = OnceLock::new();
const CHECKED_FEATURES: &str = include_str!(concat!(env!("OUT_DIR"), "/checked_features"));
fn get_manifest() -> &'static Manifest {
MANIFEST.get_or_init(|| {
let manifest_dir = PathBuf::from(var("CARGO_MANIFEST_DIR").unwrap());
Manifest::from_path(manifest_dir.join("Cargo.toml")).expect("failed to parse Cargo manifest")
})
}
#[test]
fn features_are_documented() {
let manifest_dir = PathBuf::from(var("CARGO_MANIFEST_DIR").unwrap());
let lib_code = read_to_string(manifest_dir.join("src/lib.rs")).expect("failed to read lib.rs");
for f in get_manifest().features.keys() {
if !(f.starts_with("__") || f == "default" || lib_code.contains(&format!("*{f}**"))) {
panic!("Feature {f} is not documented");
}
}
}
#[test]
fn aliased_features_exist() {
let checked_features = CHECKED_FEATURES.split(',');
let manifest = get_manifest();
for checked_feature in checked_features {
if !manifest.features.iter().any(|(f, _)| f == checked_feature) {
panic!(
"Feature {checked_feature} was checked in the alias build step but it does not exist in core/tauri/Cargo.toml"
);
}
}
}
}
#[cfg(test)]
mod test_utils {
use proptest::prelude::*;
pub fn assert_send<T: Send>() {}
pub fn assert_sync<T: Sync>() {}
#[allow(dead_code)]
pub fn assert_not_allowlist_error<T>(res: anyhow::Result<T>) {
if let Err(e) = res {
assert!(!e.to_string().contains("not on the allowlist"));
}
}
proptest! {
#![proptest_config(ProptestConfig::with_cases(10000))]
#[test]
// check to see if spawn executes a function.
fn check_spawn_task(task in "[a-z]+") {
// create dummy task function
let dummy_task = async move {
format!("{task}-run-dummy-task");
};
// call spawn
crate::async_runtime::spawn(dummy_task);
}
}
}