mirror of
https://github.com/slint-ui/slint.git
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23962b3e25
To be compatible with the 2024 edition, we need to wrap the `no_mangle` attribute in `unsafe()`. The parsing for that in cbindgen was only added in the version 0.28, but we couldn't upgrade cbindgen before because of a regression in cbindgen 0.27 that prevented us from upgrading. Now that cbindgen 0.29 is released with a fix, we can prepare for the 2024 edition
1149 lines
41 KiB
Rust
1149 lines
41 KiB
Rust
// Copyright © SixtyFPS GmbH <info@slint.dev>
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// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-2.0 OR LicenseRef-Slint-Software-3.0
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// cSpell: ignore singleshot
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/*!
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Support for timers.
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Timers are just a bunch of callbacks sorted by expiry date.
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*/
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#![warn(missing_docs)]
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use alloc::boxed::Box;
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use alloc::vec::Vec;
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use core::{
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cell::{Cell, RefCell},
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num::NonZeroUsize,
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};
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use crate::animations::Instant;
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type TimerCallback = Box<dyn FnMut()>;
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type SingleShotTimerCallback = Box<dyn FnOnce()>;
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/// The TimerMode specifies what should happen after the timer fired.
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///
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/// Used by the [`Timer::start()`] function.
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#[derive(Copy, Clone)]
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#[repr(u8)]
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#[non_exhaustive]
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pub enum TimerMode {
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/// A SingleShot timer is fired only once.
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SingleShot,
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/// A Repeated timer is fired repeatedly until it is stopped or dropped.
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Repeated,
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}
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/// Timer is a handle to the timer system that triggers a callback after a specified
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/// period of time.
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///
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/// Use [`Timer::start()`] to create a timer that repeatedly triggers a callback, or
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/// [`Timer::single_shot`] to trigger a callback only once.
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///
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/// The timer will automatically stop when dropped. You must keep the Timer object
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/// around for as long as you want the timer to keep firing.
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///
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/// Timers can only be used in the thread that runs the Slint event loop. They don't
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/// fire if used in another thread.
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///
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/// ## Example
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/// ```rust,no_run
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/// # i_slint_backend_testing::init_no_event_loop();
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/// use slint::{Timer, TimerMode};
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/// let timer = Timer::default();
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/// timer.start(TimerMode::Repeated, std::time::Duration::from_millis(200), move || {
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/// println!("This will be printed every 200ms.");
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/// });
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/// // ... more initialization ...
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/// slint::run_event_loop();
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/// ```
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#[derive(Default)]
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pub struct Timer {
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id: Cell<Option<NonZeroUsize>>,
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/// The timer cannot be moved between treads
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_phantom: core::marker::PhantomData<*mut ()>,
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}
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impl Timer {
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/// Starts the timer with the given mode and interval, in order for the callback to called when the
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/// timer fires. If the timer has been started previously and not fired yet, then it will be restarted.
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///
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/// Arguments:
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/// * `mode`: The timer mode to apply, i.e. whether to repeatedly fire the timer or just once.
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/// * `interval`: The duration from now until when the timer should fire the first time, and subsequently
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/// for repeated [`Repeated`](TimerMode::Repeated) timers.
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/// * `callback`: The function to call when the time has been reached or exceeded.
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pub fn start(
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&self,
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mode: TimerMode,
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interval: core::time::Duration,
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callback: impl FnMut() + 'static,
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) {
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CURRENT_TIMERS.with(|timers| {
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let mut timers = timers.borrow_mut();
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let id = timers.start_or_restart_timer(
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self.id(),
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mode,
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interval,
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CallbackVariant::MultiFire(Box::new(callback)),
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);
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self.set_id(Some(id));
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})
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}
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/// Starts the timer with the duration and the callback to called when the
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/// timer fires. It is fired only once and then deleted.
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///
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/// Arguments:
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/// * `duration`: The duration from now until when the timer should fire.
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/// * `callback`: The function to call when the time has been reached or exceeded.
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///
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/// ## Example
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/// ```rust
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/// # i_slint_backend_testing::init_no_event_loop();
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/// use slint::Timer;
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/// Timer::single_shot(std::time::Duration::from_millis(200), move || {
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/// println!("This will be printed after 200ms.");
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/// });
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/// ```
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pub fn single_shot(duration: core::time::Duration, callback: impl FnOnce() + 'static) {
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CURRENT_TIMERS.with(|timers| {
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let mut timers = timers.borrow_mut();
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timers.start_or_restart_timer(
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None,
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TimerMode::SingleShot,
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duration,
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CallbackVariant::SingleShot(Box::new(callback)),
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);
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})
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}
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/// Stops the previously started timer. Does nothing if the timer has never been started.
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pub fn stop(&self) {
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if let Some(id) = self.id() {
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CURRENT_TIMERS.with(|timers| {
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timers.borrow_mut().deactivate_timer(id);
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});
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}
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}
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/// Restarts the timer. If the timer was previously started by calling [`Self::start()`]
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/// with a duration and callback, then the time when the callback will be next invoked
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/// is re-calculated to be in the specified duration relative to when this function is called.
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///
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/// Does nothing if the timer was never started.
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pub fn restart(&self) {
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if let Some(id) = self.id() {
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CURRENT_TIMERS.with(|timers| {
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timers.borrow_mut().deactivate_timer(id);
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timers.borrow_mut().activate_timer(id);
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});
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}
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}
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/// Returns true if the timer is running; false otherwise.
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pub fn running(&self) -> bool {
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self.id()
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.map(|timer_id| CURRENT_TIMERS.with(|timers| timers.borrow().timers[timer_id].running))
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.unwrap_or(false)
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}
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/// Change the duration of timer. If the timer was is running (see [`Self::running()`]),
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/// then the time when the callback will be next invoked is re-calculated to be in the
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/// specified duration relative to when this function is called.
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///
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/// Arguments:
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/// * `interval`: The duration from now until when the timer should fire. And the period of that timer
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/// for [`Repeated`](TimerMode::Repeated) timers.
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pub fn set_interval(&self, interval: core::time::Duration) {
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if let Some(id) = self.id() {
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CURRENT_TIMERS.with(|timers| {
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timers.borrow_mut().set_interval(id, interval);
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});
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}
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}
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/// Returns the interval of the timer. If the timer was never started, the returned duration is 0ms.
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pub fn interval(&self) -> core::time::Duration {
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self.id()
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.map(|timer_id| CURRENT_TIMERS.with(|timers| timers.borrow().timers[timer_id].duration))
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.unwrap_or_default()
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}
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fn id(&self) -> Option<usize> {
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self.id.get().map(|v| usize::from(v) - 1)
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}
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fn set_id(&self, id: Option<usize>) {
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self.id.set(id.and_then(|v| NonZeroUsize::new(v + 1)));
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}
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}
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impl Drop for Timer {
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fn drop(&mut self) {
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if let Some(id) = self.id() {
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let _ = CURRENT_TIMERS.try_with(|timers| {
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#[cfg(target_os = "android")]
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if timers.borrow().timers.is_empty() {
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// There seems to be a bug in android thread_local where try_with recreates the already thread local.
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// But we are called from the drop of another thread local, just ignore the drop then
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return;
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}
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let callback = timers.borrow_mut().remove_timer(id);
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// drop the callback without having CURRENT_TIMERS borrowed
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drop(callback);
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});
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}
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}
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}
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enum CallbackVariant {
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Empty,
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MultiFire(TimerCallback),
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SingleShot(SingleShotTimerCallback),
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}
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struct TimerData {
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duration: core::time::Duration,
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mode: TimerMode,
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running: bool,
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/// Set to true when it is removed when the callback is still running
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removed: bool,
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/// true if it is in the cached the active_timers list in the maybe_activate_timers stack
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being_activated: bool,
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callback: CallbackVariant,
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}
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#[derive(Clone, Copy)]
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struct ActiveTimer {
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id: usize,
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timeout: Instant,
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}
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/// TimerList provides the interface to the event loop for activating times and
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/// determining the nearest timeout.
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#[derive(Default)]
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pub struct TimerList {
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timers: slab::Slab<TimerData>,
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active_timers: Vec<ActiveTimer>,
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/// If a callback is currently running, this is the id of the currently running callback
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callback_active: Option<usize>,
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}
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impl TimerList {
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/// Returns the timeout of the timer that should fire the soonest, or None if there
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/// is no timer active.
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pub fn next_timeout() -> Option<Instant> {
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CURRENT_TIMERS.with(|timers| {
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timers
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.borrow()
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.active_timers
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.first()
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.map(|first_active_timer| first_active_timer.timeout)
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})
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}
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/// Activates any expired timers by calling their callback function. Returns true if any timers were
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/// activated; false otherwise.
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pub fn maybe_activate_timers(now: Instant) -> bool {
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// Shortcut: Is there any timer worth activating?
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if TimerList::next_timeout().map(|timeout| now < timeout).unwrap_or(false) {
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return false;
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}
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CURRENT_TIMERS.with(|timers| {
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assert!(timers.borrow().callback_active.is_none(), "Recursion in timer code");
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// Re-register all timers that expired but are repeating, as well as all that haven't expired yet. This is
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// done in one shot to ensure a consistent state by the time the callbacks are invoked.
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let expired_timers = {
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let mut timers = timers.borrow_mut();
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// Empty active_timers and rebuild it, to preserve insertion order across expired and not expired timers.
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let mut active_timers = core::mem::take(&mut timers.active_timers);
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let expired_vs_remaining_timers_partition_point =
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active_timers.partition_point(|active_timer| active_timer.timeout <= now);
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let (expired_timers, timers_not_activated_this_time) =
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active_timers.split_at(expired_vs_remaining_timers_partition_point);
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for expired_timer in expired_timers {
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let timer = &mut timers.timers[expired_timer.id];
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assert!(!timer.being_activated);
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timer.being_activated = true;
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if matches!(timers.timers[expired_timer.id].mode, TimerMode::Repeated) {
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timers.activate_timer(expired_timer.id);
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} else {
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timers.timers[expired_timer.id].running = false;
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}
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}
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for future_timer in timers_not_activated_this_time.iter() {
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timers.register_active_timer(*future_timer);
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}
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// turn `expired_timers` slice into a truncated vec.
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active_timers.truncate(expired_vs_remaining_timers_partition_point);
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active_timers
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};
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let any_activated = !expired_timers.is_empty();
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for active_timer in expired_timers.into_iter() {
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let mut callback = {
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let mut timers = timers.borrow_mut();
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timers.callback_active = Some(active_timer.id);
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// have to release the borrow on `timers` before invoking the callback,
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// so here we temporarily move the callback out of its permanent place
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core::mem::replace(
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&mut timers.timers[active_timer.id].callback,
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CallbackVariant::Empty,
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)
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};
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match callback {
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CallbackVariant::Empty => (),
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CallbackVariant::MultiFire(ref mut cb) => cb(),
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CallbackVariant::SingleShot(cb) => {
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cb();
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timers.borrow_mut().callback_active = None;
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timers.borrow_mut().timers.remove(active_timer.id);
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continue;
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}
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};
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let mut timers = timers.borrow_mut();
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let callback_register = &mut timers.timers[active_timer.id].callback;
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// only emplace back the callback if its permanent store is still Empty:
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// if not, it means the invoked callback has restarted its own timer with a new callback
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if matches!(callback_register, CallbackVariant::Empty) {
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*callback_register = callback;
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}
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timers.callback_active = None;
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let t = &mut timers.timers[active_timer.id];
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if t.removed {
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timers.timers.remove(active_timer.id);
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} else {
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t.being_activated = false;
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}
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}
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any_activated
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})
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}
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fn start_or_restart_timer(
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&mut self,
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id: Option<usize>,
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mode: TimerMode,
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duration: core::time::Duration,
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callback: CallbackVariant,
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) -> usize {
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let mut timer_data = TimerData {
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duration,
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mode,
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running: false,
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removed: false,
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callback,
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being_activated: false,
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};
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let inactive_timer_id = if let Some(id) = id {
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self.deactivate_timer(id);
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timer_data.being_activated = self.timers[id].being_activated;
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self.timers[id] = timer_data;
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id
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} else {
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self.timers.insert(timer_data)
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};
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self.activate_timer(inactive_timer_id);
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inactive_timer_id
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}
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fn deactivate_timer(&mut self, id: usize) {
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let mut i = 0;
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while i < self.active_timers.len() {
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if self.active_timers[i].id == id {
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self.active_timers.remove(i);
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self.timers[id].running = false;
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debug_assert!(!self.active_timers.iter().any(|t| t.id == id));
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break;
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} else {
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i += 1;
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}
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}
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}
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fn activate_timer(&mut self, id: usize) {
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self.register_active_timer(ActiveTimer {
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id,
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timeout: Instant::now() + self.timers[id].duration,
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});
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}
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fn register_active_timer(&mut self, new_active_timer: ActiveTimer) {
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debug_assert!(!self.active_timers.iter().any(|t| t.id == new_active_timer.id));
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let insertion_index = self
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.active_timers
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.partition_point(|existing_timer| existing_timer.timeout < new_active_timer.timeout);
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self.active_timers.insert(insertion_index, new_active_timer);
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self.timers[new_active_timer.id].running = true;
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}
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fn remove_timer(&mut self, id: usize) -> CallbackVariant {
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self.deactivate_timer(id);
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let t = &mut self.timers[id];
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if t.being_activated {
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t.removed = true;
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CallbackVariant::Empty
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} else {
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self.timers.remove(id).callback
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}
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}
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fn set_interval(&mut self, id: usize, duration: core::time::Duration) {
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let timer = &self.timers[id];
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if timer.running {
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self.deactivate_timer(id);
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self.timers[id].duration = duration;
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self.activate_timer(id);
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} else {
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self.timers[id].duration = duration;
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}
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}
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}
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crate::thread_local!(static CURRENT_TIMERS : RefCell<TimerList> = RefCell::default());
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#[cfg(feature = "ffi")]
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pub(crate) mod ffi {
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#![allow(unsafe_code)]
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use super::*;
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#[allow(non_camel_case_types)]
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type c_void = ();
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|
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struct WrapFn {
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callback: extern "C" fn(*mut c_void),
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user_data: *mut c_void,
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drop_user_data: Option<extern "C" fn(*mut c_void)>,
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}
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impl Drop for WrapFn {
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fn drop(&mut self) {
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if let Some(x) = self.drop_user_data {
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x(self.user_data)
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}
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}
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}
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impl WrapFn {
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fn call(&self) {
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(self.callback)(self.user_data)
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}
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}
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|
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/// Start a timer with the given mode, duration in millisecond and callback. A timer id may be provided (first argument).
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/// A value of -1 for the timer id means a new timer is to be allocated.
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/// The (new) timer id is returned.
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/// The timer MUST be destroyed with slint_timer_destroy.
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#[unsafe(no_mangle)]
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pub extern "C" fn slint_timer_start(
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id: usize,
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mode: TimerMode,
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duration: u64,
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callback: extern "C" fn(*mut c_void),
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user_data: *mut c_void,
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drop_user_data: Option<extern "C" fn(*mut c_void)>,
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) -> usize {
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let wrap = WrapFn { callback, user_data, drop_user_data };
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let timer = Timer::default();
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if id != 0 {
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timer.id.set(NonZeroUsize::new(id));
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}
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if duration > i64::MAX as u64 {
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// negative duration? stop the timer
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timer.stop();
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} else {
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timer.start(mode, core::time::Duration::from_millis(duration), move || wrap.call());
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}
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timer.id.take().map(|x| usize::from(x)).unwrap_or(0)
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}
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|
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/// Execute a callback with a delay in millisecond
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#[unsafe(no_mangle)]
|
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pub extern "C" fn slint_timer_singleshot(
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delay: u64,
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callback: extern "C" fn(*mut c_void),
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user_data: *mut c_void,
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drop_user_data: Option<extern "C" fn(*mut c_void)>,
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) {
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let wrap = WrapFn { callback, user_data, drop_user_data };
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Timer::single_shot(core::time::Duration::from_millis(delay), move || wrap.call());
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}
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|
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/// Stop a timer and free its raw data
|
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#[unsafe(no_mangle)]
|
|
pub extern "C" fn slint_timer_destroy(id: usize) {
|
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if id == 0 {
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return;
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}
|
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let timer = Timer { id: Cell::new(NonZeroUsize::new(id)), _phantom: Default::default() };
|
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drop(timer);
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}
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|
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/// Stop a timer
|
|
#[unsafe(no_mangle)]
|
|
pub extern "C" fn slint_timer_stop(id: usize) {
|
|
if id == 0 {
|
|
return;
|
|
}
|
|
let timer = Timer { id: Cell::new(NonZeroUsize::new(id)), _phantom: Default::default() };
|
|
timer.stop();
|
|
timer.id.take(); // Make sure that dropping the Timer doesn't unregister it. C++ will call destroy() in the destructor.
|
|
}
|
|
|
|
/// Restart a repeated timer
|
|
#[unsafe(no_mangle)]
|
|
pub extern "C" fn slint_timer_restart(id: usize) {
|
|
if id == 0 {
|
|
return;
|
|
}
|
|
let timer = Timer { id: Cell::new(NonZeroUsize::new(id)), _phantom: Default::default() };
|
|
timer.restart();
|
|
timer.id.take(); // Make sure that dropping the Timer doesn't unregister it. C++ will call destroy() in the destructor.
|
|
}
|
|
|
|
/// Returns true if the timer is running; false otherwise.
|
|
#[unsafe(no_mangle)]
|
|
pub extern "C" fn slint_timer_running(id: usize) -> bool {
|
|
if id == 0 {
|
|
return false;
|
|
}
|
|
let timer = Timer { id: Cell::new(NonZeroUsize::new(id)), _phantom: Default::default() };
|
|
let running = timer.running();
|
|
timer.id.take(); // Make sure that dropping the Timer doesn't unregister it. C++ will call destroy() in the destructor.
|
|
running
|
|
}
|
|
|
|
/// Returns the interval in milliseconds. 0 when the timer was never started.
|
|
#[unsafe(no_mangle)]
|
|
pub extern "C" fn slint_timer_interval(id: usize) -> u64 {
|
|
if id == 0 {
|
|
return 0;
|
|
}
|
|
let timer = Timer { id: Cell::new(NonZeroUsize::new(id)), _phantom: Default::default() };
|
|
let val = timer.interval().as_millis() as u64;
|
|
timer.id.take(); // Make sure that dropping the Timer doesn't unregister it. C++ will call destroy() in the destructor.
|
|
val
|
|
}
|
|
}
|
|
|
|
/**
|
|
```rust
|
|
i_slint_backend_testing::init_no_event_loop();
|
|
use slint::{Timer, TimerMode};
|
|
use std::{rc::Rc, cell::RefCell, time::Duration};
|
|
#[derive(Default)]
|
|
struct SharedState {
|
|
timer_200: Timer,
|
|
timer_200_called: usize,
|
|
timer_500: Timer,
|
|
timer_500_called: usize,
|
|
timer_once: Timer,
|
|
timer_once_called: usize,
|
|
}
|
|
let state = Rc::new(RefCell::new(SharedState::default()));
|
|
// Note: state will be leaked because of circular dependencies: don't do that in production
|
|
let state_ = state.clone();
|
|
state.borrow_mut().timer_200.start(TimerMode::Repeated, Duration::from_millis(200), move || {
|
|
state_.borrow_mut().timer_200_called += 1;
|
|
});
|
|
let state_ = state.clone();
|
|
state.borrow_mut().timer_once.start(TimerMode::Repeated, Duration::from_millis(300), move || {
|
|
state_.borrow_mut().timer_once_called += 1;
|
|
state_.borrow().timer_once.stop();
|
|
});
|
|
let state_ = state.clone();
|
|
state.borrow_mut().timer_500.start(TimerMode::Repeated, Duration::from_millis(500), move || {
|
|
state_.borrow_mut().timer_500_called += 1;
|
|
});
|
|
slint::platform::update_timers_and_animations();
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
assert_eq!(state.borrow().timer_200_called, 0);
|
|
assert_eq!(state.borrow().timer_once_called, 0);
|
|
assert_eq!(state.borrow().timer_500_called, 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
assert_eq!(state.borrow().timer_200_called, 1);
|
|
assert_eq!(state.borrow().timer_once_called, 0);
|
|
assert_eq!(state.borrow().timer_500_called, 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
assert_eq!(state.borrow().timer_200_called, 1);
|
|
assert_eq!(state.borrow().timer_once_called, 1);
|
|
assert_eq!(state.borrow().timer_500_called, 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(200); // total: 500
|
|
assert_eq!(state.borrow().timer_200_called, 2);
|
|
assert_eq!(state.borrow().timer_once_called, 1);
|
|
assert_eq!(state.borrow().timer_500_called, 1);
|
|
for _ in 0..10 {
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
}
|
|
// total: 1500
|
|
assert_eq!(state.borrow().timer_200_called, 7);
|
|
assert_eq!(state.borrow().timer_once_called, 1);
|
|
assert_eq!(state.borrow().timer_500_called, 3);
|
|
state.borrow().timer_once.restart();
|
|
state.borrow().timer_200.restart();
|
|
state.borrow().timer_500.stop();
|
|
slint::platform::update_timers_and_animations();
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
assert_eq!(state.borrow().timer_200_called, 7);
|
|
assert_eq!(state.borrow().timer_once_called, 1);
|
|
assert_eq!(state.borrow().timer_500_called, 3);
|
|
slint::platform::update_timers_and_animations();
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
assert_eq!(state.borrow().timer_200_called, 8);
|
|
assert_eq!(state.borrow().timer_once_called, 1);
|
|
assert_eq!(state.borrow().timer_500_called, 3);
|
|
slint::platform::update_timers_and_animations();
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
assert_eq!(state.borrow().timer_200_called, 8);
|
|
assert_eq!(state.borrow().timer_once_called, 2);
|
|
assert_eq!(state.borrow().timer_500_called, 3);
|
|
slint::platform::update_timers_and_animations();
|
|
i_slint_core::tests::slint_mock_elapsed_time(1000);
|
|
slint::platform::update_timers_and_animations();
|
|
slint::platform::update_timers_and_animations();
|
|
// Despite 1000ms have passed, the 200 timer is only called once because we didn't call update_timers_and_animations in between
|
|
assert_eq!(state.borrow().timer_200_called, 9);
|
|
assert_eq!(state.borrow().timer_once_called, 2);
|
|
assert_eq!(state.borrow().timer_500_called, 3);
|
|
let state_ = state.clone();
|
|
state.borrow().timer_200.start(TimerMode::SingleShot, Duration::from_millis(200), move || {
|
|
state_.borrow_mut().timer_200_called += 1;
|
|
});
|
|
for _ in 0..5 {
|
|
i_slint_core::tests::slint_mock_elapsed_time(75);
|
|
}
|
|
assert_eq!(state.borrow().timer_200_called, 10);
|
|
assert_eq!(state.borrow().timer_once_called, 2);
|
|
assert_eq!(state.borrow().timer_500_called, 3);
|
|
state.borrow().timer_200.restart();
|
|
for _ in 0..5 {
|
|
i_slint_core::tests::slint_mock_elapsed_time(75);
|
|
}
|
|
assert_eq!(state.borrow().timer_200_called, 11);
|
|
assert_eq!(state.borrow().timer_once_called, 2);
|
|
assert_eq!(state.borrow().timer_500_called, 3);
|
|
|
|
// Test re-starting from a callback
|
|
let state_ = state.clone();
|
|
state.borrow_mut().timer_500.start(TimerMode::Repeated, Duration::from_millis(500), move || {
|
|
state_.borrow_mut().timer_500_called += 1;
|
|
let state__ = state_.clone();
|
|
state_.borrow_mut().timer_500.start(TimerMode::Repeated, Duration::from_millis(500), move || {
|
|
state__.borrow_mut().timer_500_called += 1000;
|
|
});
|
|
let state__ = state_.clone();
|
|
state_.borrow_mut().timer_200.start(TimerMode::Repeated, Duration::from_millis(200), move || {
|
|
state__.borrow_mut().timer_200_called += 1000;
|
|
});
|
|
});
|
|
for _ in 0..20 {
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
}
|
|
assert_eq!(state.borrow().timer_200_called, 7011);
|
|
assert_eq!(state.borrow().timer_once_called, 2);
|
|
assert_eq!(state.borrow().timer_500_called, 3004);
|
|
|
|
// Test set interval
|
|
let state_ = state.clone();
|
|
state.borrow_mut().timer_200.start(TimerMode::Repeated, Duration::from_millis(200), move || {
|
|
state_.borrow_mut().timer_200_called += 1;
|
|
});
|
|
let state_ = state.clone();
|
|
state.borrow_mut().timer_once.start(TimerMode::Repeated, Duration::from_millis(300), move || {
|
|
state_.borrow_mut().timer_once_called += 1;
|
|
state_.borrow().timer_once.stop();
|
|
});
|
|
let state_ = state.clone();
|
|
state.borrow_mut().timer_500.start(TimerMode::Repeated, Duration::from_millis(500), move || {
|
|
state_.borrow_mut().timer_500_called += 1;
|
|
});
|
|
|
|
let state_ = state.clone();
|
|
slint::platform::update_timers_and_animations();
|
|
for _ in 0..5 {
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
}
|
|
slint::platform::update_timers_and_animations();
|
|
assert_eq!(state.borrow().timer_200_called, 7013);
|
|
assert_eq!(state.borrow().timer_once_called, 3);
|
|
assert_eq!(state.borrow().timer_500_called, 3005);
|
|
|
|
for _ in 0..20 {
|
|
state.borrow().timer_200.set_interval(Duration::from_millis(200 * 2));
|
|
state.borrow().timer_once.set_interval(Duration::from_millis(300 * 2));
|
|
state.borrow().timer_500.set_interval(Duration::from_millis(500 * 2));
|
|
|
|
assert_eq!(state.borrow().timer_200_called, 7013);
|
|
assert_eq!(state.borrow().timer_once_called, 3);
|
|
assert_eq!(state.borrow().timer_500_called, 3005);
|
|
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
}
|
|
|
|
slint::platform::update_timers_and_animations();
|
|
for _ in 0..9 {
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
}
|
|
slint::platform::update_timers_and_animations();
|
|
assert_eq!(state.borrow().timer_200_called, 7015);
|
|
assert_eq!(state.borrow().timer_once_called, 3);
|
|
assert_eq!(state.borrow().timer_500_called, 3006);
|
|
|
|
state.borrow().timer_200.stop();
|
|
state.borrow().timer_500.stop();
|
|
|
|
state.borrow_mut().timer_once.restart();
|
|
for _ in 0..4 {
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
}
|
|
assert_eq!(state.borrow().timer_once_called, 3);
|
|
for _ in 0..4 {
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
}
|
|
assert_eq!(state.borrow().timer_once_called, 4);
|
|
|
|
state.borrow_mut().timer_once.stop();
|
|
i_slint_core::tests::slint_mock_elapsed_time(1000);
|
|
|
|
assert_eq!(state.borrow().timer_200_called, 7015);
|
|
assert_eq!(state.borrow().timer_once_called, 4);
|
|
assert_eq!(state.borrow().timer_500_called, 3006);
|
|
```
|
|
*/
|
|
#[cfg(doctest)]
|
|
const _TIMER_TESTS: () = ();
|
|
|
|
/**
|
|
* Test that deleting an active timer from a timer event works.
|
|
```rust
|
|
// There is a 200 ms timer that increase variable1
|
|
// after 500ms, that timer is destroyed by a single shot timer,
|
|
// and a new new timer increase variable2
|
|
i_slint_backend_testing::init_no_event_loop();
|
|
use slint::{Timer, TimerMode};
|
|
use std::{rc::Rc, cell::RefCell, time::Duration};
|
|
#[derive(Default)]
|
|
struct SharedState {
|
|
repeated_timer: Timer,
|
|
variable1: usize,
|
|
variable2: usize,
|
|
}
|
|
let state = Rc::new(RefCell::new(SharedState::default()));
|
|
// Note: state will be leaked because of circular dependencies: don't do that in production
|
|
let state_ = state.clone();
|
|
state.borrow_mut().repeated_timer.start(TimerMode::Repeated, Duration::from_millis(200), move || {
|
|
state_.borrow_mut().variable1 += 1;
|
|
});
|
|
let state_ = state.clone();
|
|
Timer::single_shot(Duration::from_millis(500), move || {
|
|
state_.borrow_mut().repeated_timer = Default::default();
|
|
let state = state_.clone();
|
|
state_.borrow_mut().repeated_timer.start(TimerMode::Repeated, Duration::from_millis(200), move || {
|
|
state.borrow_mut().variable2 += 1;
|
|
})
|
|
} );
|
|
i_slint_core::tests::slint_mock_elapsed_time(10);
|
|
assert_eq!(state.borrow().variable1, 0);
|
|
assert_eq!(state.borrow().variable2, 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 1);
|
|
assert_eq!(state.borrow().variable2, 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert_eq!(state.borrow().variable2, 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
// More than 500ms have elapsed, the single shot timer should have been activated, but that has no effect on variable 1 and 2
|
|
// This should just restart the timer so that the next change should happen 200ms from now
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert_eq!(state.borrow().variable2, 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(110);
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert_eq!(state.borrow().variable2, 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert_eq!(state.borrow().variable2, 1);
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert_eq!(state.borrow().variable2, 1);
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert_eq!(state.borrow().variable2, 2);
|
|
```
|
|
*/
|
|
#[cfg(doctest)]
|
|
const _BUG3019: () = ();
|
|
|
|
/**
|
|
* Test that starting a singleshot timer works
|
|
```rust
|
|
// There is a 200 ms singleshot timer that increase variable1
|
|
i_slint_backend_testing::init_no_event_loop();
|
|
use slint::{Timer, TimerMode};
|
|
use std::{rc::Rc, cell::RefCell, time::Duration};
|
|
#[derive(Default)]
|
|
struct SharedState {
|
|
variable1: usize,
|
|
}
|
|
let state = Rc::new(RefCell::new(SharedState::default()));
|
|
let state_ = state.clone();
|
|
let timer = Timer::default();
|
|
|
|
timer.start(TimerMode::SingleShot, Duration::from_millis(200), move || {
|
|
state_.borrow_mut().variable1 += 1;
|
|
});
|
|
|
|
// Singleshot timer set up and run...
|
|
assert!(timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(10);
|
|
assert!(timer.running());
|
|
assert_eq!(state.borrow().variable1, 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 1);
|
|
assert!(!timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 1); // It's singleshot, it only triggers once!
|
|
assert!(!timer.running());
|
|
|
|
// Restart a previously set up singleshot timer
|
|
timer.restart();
|
|
assert!(timer.running());
|
|
assert_eq!(state.borrow().variable1, 1);
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert!(!timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 2); // It's singleshot, it only triggers once!
|
|
assert!(!timer.running());
|
|
|
|
// Stop a non-running singleshot timer
|
|
timer.stop();
|
|
assert!(!timer.running());
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert!(!timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 2); // It's singleshot, it only triggers once!
|
|
assert!(!timer.running());
|
|
|
|
// Stop a running singleshot timer
|
|
timer.restart();
|
|
assert!(timer.running());
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
i_slint_core::tests::slint_mock_elapsed_time(10);
|
|
timer.stop();
|
|
assert!(!timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert!(!timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 2); // It's singleshot, it only triggers once!
|
|
assert!(!timer.running());
|
|
|
|
// set_interval on a non-running singleshot timer
|
|
timer.set_interval(Duration::from_millis(300));
|
|
assert!(!timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(1000);
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert!(!timer.running());
|
|
timer.restart();
|
|
assert!(timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert!(timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 3);
|
|
assert!(!timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(300);
|
|
assert_eq!(state.borrow().variable1, 3); // It's singleshot, it only triggers once!
|
|
assert!(!timer.running());
|
|
|
|
// set_interval on a running singleshot timer
|
|
timer.restart();
|
|
assert!(timer.running());
|
|
assert_eq!(state.borrow().variable1, 3);
|
|
i_slint_core::tests::slint_mock_elapsed_time(290);
|
|
timer.set_interval(Duration::from_millis(400));
|
|
assert!(timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 3);
|
|
assert!(timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(250);
|
|
assert_eq!(state.borrow().variable1, 4);
|
|
assert!(!timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(400);
|
|
assert_eq!(state.borrow().variable1, 4); // It's singleshot, it only triggers once!
|
|
assert!(!timer.running());
|
|
```
|
|
*/
|
|
#[cfg(doctest)]
|
|
const _SINGLESHOT_START: () = ();
|
|
|
|
/**
|
|
* Test that it's possible to start a new timer from within Drop of a timer's closure.
|
|
* This may happen when a timer's closure is dropped, that closure holds the last reference
|
|
* to a component, that component is destroyed, and the accesskit code schedules a reload_tree
|
|
* via a single shot.
|
|
```rust
|
|
i_slint_backend_testing::init_no_event_loop();
|
|
use slint::{Timer, TimerMode};
|
|
use std::{rc::Rc, cell::Cell, time::Duration};
|
|
#[derive(Default)]
|
|
struct CapturedInClosure {
|
|
last_fired: Option<Rc<Cell<bool>>>,
|
|
}
|
|
impl Drop for CapturedInClosure {
|
|
fn drop(&mut self) {
|
|
if let Some(last_fired) = self.last_fired.as_ref().cloned() {
|
|
Timer::single_shot(Duration::from_millis(100), move || last_fired.set(true));
|
|
}
|
|
}
|
|
}
|
|
|
|
let last_fired = Rc::new(Cell::new(false));
|
|
|
|
let mut cap_in_clos = CapturedInClosure::default();
|
|
|
|
let timer_to_stop = Timer::default();
|
|
timer_to_stop.start(TimerMode::Repeated, Duration::from_millis(100), {
|
|
let last_fired = last_fired.clone();
|
|
move || {
|
|
cap_in_clos.last_fired = Some(last_fired.clone());
|
|
}});
|
|
|
|
assert_eq!(last_fired.get(), false);
|
|
i_slint_core::tests::slint_mock_elapsed_time(110);
|
|
assert_eq!(last_fired.get(), false);
|
|
drop(timer_to_stop);
|
|
|
|
i_slint_core::tests::slint_mock_elapsed_time(110);
|
|
assert_eq!(last_fired.get(), true);
|
|
```
|
|
*/
|
|
#[cfg(doctest)]
|
|
const _TIMER_CLOSURE_DROP_STARTS_NEW_TIMER: () = ();
|
|
|
|
/**
|
|
* Test that it's possible to set a timer's interval from within the callback.
|
|
```rust
|
|
i_slint_backend_testing::init_no_event_loop();
|
|
use slint::{Timer, TimerMode};
|
|
use std::{rc::Rc, cell::RefCell, time::Duration};
|
|
#[derive(Default)]
|
|
struct SharedState {
|
|
// Note: state will be leaked because of circular dependencies: don't do that in production
|
|
timer: Timer,
|
|
variable1: usize,
|
|
}
|
|
let state = Rc::new(RefCell::new(SharedState::default()));
|
|
let state_ = state.clone();
|
|
state.borrow().timer.start(TimerMode::Repeated, Duration::from_millis(200), move || {
|
|
state_.borrow_mut().variable1 += 1;
|
|
let variable1 = state_.borrow().variable1;
|
|
if variable1 == 2 {
|
|
state_.borrow().timer.set_interval(Duration::from_millis(500));
|
|
} else if variable1 == 3 {
|
|
state_.borrow().timer.set_interval(Duration::from_millis(100));
|
|
}
|
|
});
|
|
|
|
assert!(state.borrow().timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(10);
|
|
assert!(state.borrow().timer.running());
|
|
assert_eq!(state.borrow().variable1, 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(200);
|
|
assert_eq!(state.borrow().variable1, 1); // fired
|
|
assert!(state.borrow().timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(180);
|
|
assert_eq!(state.borrow().variable1, 1);
|
|
assert!(state.borrow().timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(30);
|
|
assert_eq!(state.borrow().variable1, 2); // fired
|
|
assert!(state.borrow().timer.running());
|
|
// now the timer interval should be 500
|
|
i_slint_core::tests::slint_mock_elapsed_time(480);
|
|
assert_eq!(state.borrow().variable1, 2);
|
|
assert!(state.borrow().timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(30);
|
|
assert_eq!(state.borrow().variable1, 3); // fired
|
|
assert!(state.borrow().timer.running());
|
|
// now the timer interval should be 100
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
assert_eq!(state.borrow().variable1, 4); // fired
|
|
assert!(state.borrow().timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(100);
|
|
assert_eq!(state.borrow().variable1, 5); // fired
|
|
assert!(state.borrow().timer.running());
|
|
```
|
|
*/
|
|
#[cfg(doctest)]
|
|
const _BUG6141_SET_INTERVAL_FROM_CALLBACK: () = ();
|
|
|
|
/**
|
|
* Test that a timer can't be activated twice.
|
|
```rust
|
|
i_slint_backend_testing::init_no_event_loop();
|
|
use slint::{Timer, TimerMode};
|
|
use std::{rc::Rc, cell::Cell, time::Duration};
|
|
|
|
let later_timer_expiration_count = Rc::new(Cell::new(0));
|
|
|
|
let sooner_timer = Timer::default();
|
|
let later_timer = Rc::new(Timer::default());
|
|
later_timer.start(TimerMode::SingleShot, Duration::from_millis(500), {
|
|
let later_timer_expiration_count = later_timer_expiration_count.clone();
|
|
move || {
|
|
later_timer_expiration_count.set(later_timer_expiration_count.get() + 1);
|
|
}
|
|
});
|
|
|
|
sooner_timer.start(TimerMode::SingleShot, Duration::from_millis(100), {
|
|
let later_timer = later_timer.clone();
|
|
let later_timer_expiration_count = later_timer_expiration_count.clone();
|
|
move || {
|
|
later_timer.start(TimerMode::SingleShot, Duration::from_millis(600), {
|
|
let later_timer_expiration_count = later_timer_expiration_count.clone();
|
|
move || {
|
|
later_timer_expiration_count.set(later_timer_expiration_count.get() + 1);
|
|
}
|
|
});
|
|
}});
|
|
|
|
assert_eq!(later_timer_expiration_count.get(), 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(110);
|
|
assert_eq!(later_timer_expiration_count.get(), 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(400);
|
|
assert_eq!(later_timer_expiration_count.get(), 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(800);
|
|
assert_eq!(later_timer_expiration_count.get(), 1);
|
|
```
|
|
*/
|
|
#[cfg(doctest)]
|
|
const _DOUBLY_REGISTER_ACTIVE_TIMER: () = ();
|
|
|
|
/**
|
|
* Test that a timer can't be activated twice.
|
|
```rust
|
|
i_slint_backend_testing::init_no_event_loop();
|
|
use slint::{Timer, TimerMode};
|
|
use std::{rc::Rc, cell::Cell, time::Duration};
|
|
|
|
let later_timer_expiration_count = Rc::new(Cell::new(0));
|
|
|
|
let sooner_timer = Timer::default();
|
|
let later_timer = Rc::new(Timer::default());
|
|
later_timer.start(TimerMode::Repeated, Duration::from_millis(110), {
|
|
let later_timer_expiration_count = later_timer_expiration_count.clone();
|
|
move || {
|
|
later_timer_expiration_count.set(later_timer_expiration_count.get() + 1);
|
|
}
|
|
});
|
|
|
|
sooner_timer.start(TimerMode::SingleShot, Duration::from_millis(100), {
|
|
let later_timer = later_timer.clone();
|
|
let later_timer_expiration_count = later_timer_expiration_count.clone();
|
|
move || {
|
|
later_timer.start(TimerMode::Repeated, Duration::from_millis(110), {
|
|
let later_timer_expiration_count = later_timer_expiration_count.clone();
|
|
move || {
|
|
later_timer_expiration_count.set(later_timer_expiration_count.get() + 1);
|
|
}
|
|
});
|
|
}});
|
|
|
|
assert_eq!(later_timer_expiration_count.get(), 0);
|
|
i_slint_core::tests::slint_mock_elapsed_time(120);
|
|
assert_eq!(later_timer_expiration_count.get(), 1);
|
|
```
|
|
*/
|
|
#[cfg(doctest)]
|
|
const _DOUBLY_REGISTER_ACTIVE_TIMER_2: () = ();
|
|
|
|
/**
|
|
* Test that a timer that's being activated can be restarted and dropped in one go.
|
|
```rust
|
|
i_slint_backend_testing::init_no_event_loop();
|
|
use slint::{Timer, TimerMode};
|
|
use std::{cell::RefCell, rc::Rc, time::Duration};
|
|
|
|
let destructive_timer = Rc::new(RefCell::new(Some(Timer::default())));
|
|
|
|
destructive_timer.borrow().as_ref().unwrap().start(TimerMode::Repeated, Duration::from_millis(110), {
|
|
let destructive_timer = destructive_timer.clone();
|
|
move || {
|
|
// start() used to reset the `being_activated` flag...
|
|
destructive_timer.borrow().as_ref().unwrap().start(TimerMode::Repeated, Duration::from_millis(110), || {});
|
|
// ... which would make this drop remove the timer from the timer list altogether and continued processing
|
|
// of the timer would panic as the id isn't valid anymore.
|
|
drop(destructive_timer.take());
|
|
}
|
|
});
|
|
|
|
drop(destructive_timer);
|
|
i_slint_core::tests::slint_mock_elapsed_time(120);
|
|
```
|
|
*/
|
|
#[cfg(doctest)]
|
|
const _RESTART_TIMER_BEING_ACTIVATED: () = ();
|
|
|
|
/**
|
|
* Test that a future timer can be stopped from the activation callback of an earlier timer.
|
|
```rust
|
|
i_slint_backend_testing::init_no_event_loop();
|
|
use slint::{Timer, TimerMode};
|
|
use std::{rc::Rc, cell::Cell, time::Duration};
|
|
|
|
let later_timer_expiration_count = Rc::new(Cell::new(0));
|
|
|
|
let sooner_timer = Timer::default();
|
|
let later_timer = Rc::new(Timer::default());
|
|
later_timer.start(TimerMode::SingleShot, Duration::from_millis(500), {
|
|
let later_timer_expiration_count = later_timer_expiration_count.clone();
|
|
move || {
|
|
later_timer_expiration_count.set(later_timer_expiration_count.get() + 1);
|
|
}
|
|
});
|
|
|
|
sooner_timer.start(TimerMode::SingleShot, Duration::from_millis(100), {
|
|
let later_timer = later_timer.clone();
|
|
let later_timer_expiration_count = later_timer_expiration_count.clone();
|
|
move || {
|
|
later_timer.stop();
|
|
}
|
|
});
|
|
|
|
assert_eq!(later_timer_expiration_count.get(), 0);
|
|
assert!(later_timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(110);
|
|
assert_eq!(later_timer_expiration_count.get(), 0);
|
|
assert!(!later_timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(800);
|
|
assert_eq!(later_timer_expiration_count.get(), 0);
|
|
assert!(!later_timer.running());
|
|
i_slint_core::tests::slint_mock_elapsed_time(800);
|
|
i_slint_core::tests::slint_mock_elapsed_time(800);
|
|
assert_eq!(later_timer_expiration_count.get(), 0);
|
|
```
|
|
*/
|
|
#[cfg(doctest)]
|
|
const _STOP_FUTURE_TIMER_DURING_ACTIVATION_OF_EARLIER: () = ();
|