888 lines
27 KiB
Rust
888 lines
27 KiB
Rust
//! This module provides a set of common events for all Dioxus apps to target, regardless of host platform.
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//! -------------------------------------------------------------------------------------------------------
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//!
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//! 3rd party renderers are responsible for converting their native events into these virtual event types. Events might
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//! be heavy or need to interact through FFI, so the events themselves are designed to be lazy.
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use std::{cell::Cell, rc::Rc};
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use crate::innerlude::{RealDomNode, ScopeId};
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#[derive(Debug)]
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pub struct EventTrigger {
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/// The originator of the event trigger
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pub originator: ScopeId,
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/// The optional real node associated with the trigger
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pub real_node_id: Option<RealDomNode>,
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/// The type of event
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pub event: VirtualEvent,
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/// The priority of the event
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pub priority: EventPriority,
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}
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impl EventTrigger {
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pub fn new_from_task(originator: ScopeId, hook_idx: usize) -> Self {
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Self {
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originator,
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event: VirtualEvent::AsyncEvent { hook_idx },
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priority: EventPriority::Low,
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real_node_id: None,
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}
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}
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}
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/// Priority of Event Triggers.
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///
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/// Internally, Dioxus will abort work that's taking too long if new, more important, work arrives. Unlike React, Dioxus
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/// won't be afraid to pause work or flush changes to the RealDOM. This is called "cooperative scheduling". Some Renderers
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/// implement this form of scheduling internally, however Dioxus will perform its own scheduling as well.
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///
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/// The ultimate goal of the scheduler is to manage latency of changes, prioritizing "flashier" changes over "subtler" changes.
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#[derive(Debug)]
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pub enum EventPriority {
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/// "Immediate" work will interrupt whatever work is currently being done and force its way through. This type of work
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/// is typically reserved for small changes to single elements.
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///
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/// The primary user of the "Immediate" priority is the `Signal` API which performs surgical mutations to the DOM.
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Immediate,
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/// "High Priority" work will not interrupt other high priority work, but will interrupt long medium and low priority work.
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///
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///
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/// This is typically reserved for things like user interaction.
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High,
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/// "Medium priority" work is generated by page events not triggered by the user. These types of events are less important
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/// than "High Priority" events and will take presedence over low priority events.
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///
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/// This is typically reserved for VirtualEvents that are not related to keyboard or mouse input.
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Medium,
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/// "Low Priority" work will always be pre-empted unless the work is significantly delayed, in which case it will be
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/// advanced to the front of the work queue until completed.
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///
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/// The primary user of Low Priority work is the asynchronous work system (suspense).
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Low,
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}
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impl EventTrigger {
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pub fn new(
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event: VirtualEvent,
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scope: ScopeId,
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mounted_dom_id: Option<RealDomNode>,
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priority: EventPriority,
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) -> Self {
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Self {
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priority,
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originator: scope,
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real_node_id: mounted_dom_id,
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event,
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}
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}
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}
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#[derive(Debug)]
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pub enum VirtualEvent {
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// Real events
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ClipboardEvent(on::ClipboardEvent),
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CompositionEvent(on::CompositionEvent),
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KeyboardEvent(on::KeyboardEvent),
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FocusEvent(on::FocusEvent),
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FormEvent(on::FormEvent),
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SelectionEvent(on::SelectionEvent),
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TouchEvent(on::TouchEvent),
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UIEvent(on::UIEvent),
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WheelEvent(on::WheelEvent),
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MediaEvent(on::MediaEvent),
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AnimationEvent(on::AnimationEvent),
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TransitionEvent(on::TransitionEvent),
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ToggleEvent(on::ToggleEvent),
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MouseEvent(on::MouseEvent),
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PointerEvent(on::PointerEvent),
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// image event has conflicting method types
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// ImageEvent(event_data::ImageEvent),
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// Whenever a task is ready (complete) Dioxus produces this "AsyncEvent"
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//
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// Async events don't necessarily propagate into a scope being ran. It's up to the event itself
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// to force an update for itself.
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AsyncEvent {
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hook_idx: usize,
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},
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// These are more intrusive than the rest
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SuspenseEvent {
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hook_idx: usize,
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domnode: Rc<Cell<RealDomNode>>,
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},
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OtherEvent,
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}
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pub mod on {
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//! This module defines the synthetic events that all Dioxus apps enable. No matter the platform, every dioxus renderer
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//! will implement the same events and same behavior (bubbling, cancelation, etc).
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//!
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//! Synthetic events are immutable and wrapped in Arc. It is the intention for Dioxus renderers to re-use the underyling
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//! Arc allocation through "get_mut"
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//!
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//!
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//!
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#![allow(unused)]
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use std::{fmt::Debug, ops::Deref, rc::Rc};
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use crate::{
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innerlude::NodeFactory,
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innerlude::{Attribute, Listener, RealDomNode, VNode},
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};
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use std::cell::Cell;
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use super::VirtualEvent;
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macro_rules! event_directory {
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( $(
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$( #[$attr:meta] )*
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$eventdata:ident($wrapper:ident): [
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$(
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$( #[$method_attr:meta] )*
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$name:ident
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)*
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];
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)* ) => {
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$(
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$(#[$attr])*
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#[derive(Debug)]
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pub struct $wrapper(pub Rc<dyn $eventdata>);
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// todo: derefing to the event is fine (and easy) but breaks some IDE stuff like (go to source)
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// going to source in fact takes you to the source of Rc which is... less than useful
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// Either we ask for this to be changed in Rust-analyzer or manually impkement the trait
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impl Deref for $wrapper {
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type Target = Rc<dyn $eventdata>;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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$(
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$(#[$method_attr])*
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pub fn $name<'a, F>(
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c: NodeFactory<'a>,
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mut callback: F,
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) -> Listener<'a>
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where F: FnMut($wrapper) + 'a
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{
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let bump = &c.bump();
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Listener {
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event: stringify!($name),
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mounted_node: bump.alloc(Cell::new(RealDomNode::empty())),
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scope: c.scope_ref.our_arena_idx,
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callback: bump.alloc(move |evt: VirtualEvent| match evt {
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VirtualEvent::$wrapper(event) => callback(event),
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_ => unreachable!("Downcasted VirtualEvent to wrong event type - this is an internal bug!")
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}),
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}
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}
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)*
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)*
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};
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}
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// The Dioxus Synthetic event system
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//
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//
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//
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//
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//
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//
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//
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//
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event_directory! {
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ClipboardEventInner(ClipboardEvent): [
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/// Called when "copy"
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oncopy
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/// oncut
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oncut
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/// onpaste
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onpaste
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];
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CompositionEventInner(CompositionEvent): [
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/// oncompositionend
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oncompositionend
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/// oncompositionstart
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oncompositionstart
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/// oncompositionupdate
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oncompositionupdate
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];
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KeyboardEventInner(KeyboardEvent): [
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/// onkeydown
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onkeydown
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/// onkeypress
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onkeypress
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/// onkeyup
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onkeyup
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];
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FocusEventInner(FocusEvent): [
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/// onfocus
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onfocus
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/// onblur
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onblur
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];
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FormEventInner(FormEvent): [
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/// onchange
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onchange
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/// oninput
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oninput
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/// oninvalid
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oninvalid
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/// onreset
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onreset
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/// onsubmit
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onsubmit
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];
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/// A synthetic event that wraps a web-style [`MouseEvent`](https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent)
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///
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///
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/// The MouseEvent interface represents events that occur due to the user interacting with a pointing device (such as a mouse).
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///
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/// ## Trait implementation:
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/// ```rust
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/// fn alt_key(&self) -> bool;
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/// fn button(&self) -> i16;
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/// fn buttons(&self) -> u16;
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/// fn client_x(&self) -> i32;
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/// fn client_y(&self) -> i32;
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/// fn ctrl_key(&self) -> bool;
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/// fn meta_key(&self) -> bool;
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/// fn page_x(&self) -> i32;
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/// fn page_y(&self) -> i32;
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/// fn screen_x(&self) -> i32;
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/// fn screen_y(&self) -> i32;
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/// fn shift_key(&self) -> bool;
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/// fn get_modifier_state(&self, key_code: &str) -> bool;
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/// ```
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///
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/// ## Event Handlers
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/// - [`onclick`]
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/// - [`oncontextmenu`]
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/// - [`ondoubleclick`]
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/// - [`ondrag`]
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/// - [`ondragend`]
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/// - [`ondragenter`]
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/// - [`ondragexit`]
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/// - [`ondragleave`]
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/// - [`ondragover`]
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/// - [`ondragstart`]
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/// - [`ondrop`]
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/// - [`onmousedown`]
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/// - [`onmouseenter`]
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/// - [`onmouseleave`]
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/// - [`onmousemove`]
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/// - [`onmouseout`]
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/// - [`onmouseover`]
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/// - [`onmouseup`]
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MouseEventInner(MouseEvent): [
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/// Execute a callback when a button is clicked.
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///
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/// ## Description
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///
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/// An element receives a click event when a pointing device button (such as a mouse's primary mouse button)
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/// is both pressed and released while the pointer is located inside the element.
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///
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/// - Bubbles: Yes
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/// - Cancelable: Yes
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/// - Interface: [`MouseEvent`]
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///
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/// If the button is pressed on one element and the pointer is moved outside the element before the button
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/// is released, the event is fired on the most specific ancestor element that contained both elements.
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/// `click` fires after both the `mousedown` and `mouseup` events have fired, in that order.
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///
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/// ## Example
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/// ```
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/// rsx!( button { "click me", onclick: move |_| log::info!("Clicked!`") } )
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/// ```
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///
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/// ## Reference
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/// - https://www.w3schools.com/tags/ev_onclick.asp
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/// - https://developer.mozilla.org/en-US/docs/Web/API/Element/click_event
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///
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onclick
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/// oncontextmenu
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oncontextmenu
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/// ondoubleclick
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ondoubleclick
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/// ondrag
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ondrag
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/// ondragend
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ondragend
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/// ondragenter
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ondragenter
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/// ondragexit
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ondragexit
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/// ondragleave
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ondragleave
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/// ondragover
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ondragover
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/// ondragstart
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ondragstart
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/// ondrop
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ondrop
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/// onmousedown
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onmousedown
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/// onmouseenter
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onmouseenter
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/// onmouseleave
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onmouseleave
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/// onmousemove
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onmousemove
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/// onmouseout
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onmouseout
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/// onmouseover
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onmouseover
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/// onmouseup
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onmouseup
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];
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PointerEventInner(PointerEvent): [
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/// pointerdown
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onpointerdown
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/// pointermove
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onpointermove
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/// pointerup
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onpointerup
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/// pointercancel
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onpointercancel
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/// gotpointercapture
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ongotpointercapture
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/// lostpointercapture
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onlostpointercapture
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/// pointerenter
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onpointerenter
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/// pointerleave
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onpointerleave
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/// pointerover
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onpointerover
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/// pointerout
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onpointerout
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];
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SelectionEventInner(SelectionEvent): [
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/// onselect
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onselect
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];
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TouchEventInner(TouchEvent): [
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/// ontouchcancel
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ontouchcancel
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/// ontouchend
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ontouchend
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/// ontouchmove
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ontouchmove
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/// ontouchstart
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ontouchstart
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];
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UIEventInner(UIEvent): [
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///
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scroll
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];
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WheelEventInner(WheelEvent): [
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///
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wheel
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];
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MediaEventInner(MediaEvent): [
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///abort
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onabort
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///canplay
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oncanplay
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///canplaythrough
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oncanplaythrough
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///durationchange
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ondurationchange
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///emptied
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onemptied
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///encrypted
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onencrypted
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///ended
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onended
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///error
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onerror
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///loadeddata
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onloadeddata
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///loadedmetadata
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onloadedmetadata
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///loadstart
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onloadstart
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///pause
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onpause
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///play
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onplay
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///playing
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onplaying
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///progress
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onprogress
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///ratechange
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onratechange
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///seeked
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onseeked
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///seeking
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onseeking
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///stalled
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onstalled
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///suspend
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onsuspend
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///timeupdate
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ontimeupdate
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///volumechange
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onvolumechange
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///waiting
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onwaiting
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];
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AnimationEventInner(AnimationEvent): [
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/// onanimationstart
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onanimationstart
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/// onanimationend
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onanimationend
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/// onanimationiteration
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onanimationiteration
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];
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TransitionEventInner(TransitionEvent): [
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///
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ontransitionend
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];
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ToggleEventInner(ToggleEvent): [
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///
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ontoggle
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];
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}
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pub trait GenericEventInner {
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/// Returns whether or not a specific event is a bubbling event
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fn bubbles(&self) -> bool;
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/// Sets or returns whether the event should propagate up the hierarchy or not
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fn cancel_bubble(&self);
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/// Returns whether or not an event can have its default action prevented
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fn cancelable(&self) -> bool;
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/// Returns whether the event is composed or not
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fn composed(&self) -> bool;
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/// Returns the event's path
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fn composed_path(&self) -> String;
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/// Returns the element whose event listeners triggered the event
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fn current_target(&self);
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/// Returns whether or not the preventDefault method was called for the event
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fn default_prevented(&self) -> bool;
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/// Returns which phase of the event flow is currently being evaluated
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fn event_phase(&self) -> usize;
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/// Returns whether or not an event is trusted
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fn is_trusted(&self) -> bool;
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/// Cancels the event if it is cancelable, meaning that the default action that belongs to the event will
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fn prevent_default(&self);
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/// Prevents other listeners of the same event from being called
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fn stop_immediate_propagation(&self);
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/// Prevents further propagation of an event during event flow
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fn stop_propagation(&self);
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/// Returns the element that triggered the event
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fn target(&self);
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/// Returns the time (in milliseconds relative to the epoch) at which the event was created
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fn time_stamp(&self) -> usize;
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}
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pub trait ClipboardEventInner: Debug + GenericEventInner {
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// DOMDataTransfer clipboardData
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}
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pub trait CompositionEventInner: Debug {
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fn data(&self) -> String;
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}
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pub trait KeyboardEventInner: Debug {
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fn char_code(&self) -> u32;
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/// Get the key code as an enum Variant.
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///
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/// This is intended for things like arrow keys, escape keys, function keys, and other non-international keys.
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/// To match on unicode sequences, use the [`key`] method - this will return a string identifier instead of a limited enum.
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///
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///
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/// ## Example
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///
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/// ```rust
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/// use dioxus::KeyCode;
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/// match event.key_code() {
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/// KeyCode::Escape => {}
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/// KeyCode::LeftArrow => {}
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/// KeyCode::RightArrow => {}
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/// _ => {}
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/// }
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/// ```
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///
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fn key_code(&self) -> KeyCode;
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/// Check if the ctrl key was pressed down
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fn ctrl_key(&self) -> bool;
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/// Identify which "key" was entered.
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///
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/// This is the best method to use for all languages. They key gets mapped to a String sequence which you can match on.
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/// The key isn't an enum because there are just so many context-dependent keys.
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///
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/// A full list on which keys to use is available at:
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/// <https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key/Key_Values>
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///
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/// # Example
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///
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/// ```rust
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/// match event.key().as_str() {
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/// "Esc" | "Escape" => {}
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/// "ArrowDown" => {}
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/// "ArrowLeft" => {}
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/// _ => {}
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/// }
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/// ```
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///
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fn key(&self) -> String;
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// fn key(&self) -> String;
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fn locale(&self) -> String;
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fn location(&self) -> usize;
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fn meta_key(&self) -> bool;
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fn repeat(&self) -> bool;
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fn shift_key(&self) -> bool;
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fn which(&self) -> usize;
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fn get_modifier_state(&self, key_code: usize) -> bool;
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}
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pub trait FocusEventInner: Debug {
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/* DOMEventInnerTarget relatedTarget */
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}
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pub trait FormEventInner: Debug {
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fn value(&self) -> String;
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}
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pub trait MouseEventInner: Debug {
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fn alt_key(&self) -> bool;
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fn button(&self) -> i16;
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fn buttons(&self) -> u16;
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/// Get the X coordinate of the mouse relative to the window
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fn client_x(&self) -> i32;
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fn client_y(&self) -> i32;
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fn ctrl_key(&self) -> bool;
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fn meta_key(&self) -> bool;
|
|
fn page_x(&self) -> i32;
|
|
fn page_y(&self) -> i32;
|
|
fn screen_x(&self) -> i32;
|
|
fn screen_y(&self) -> i32;
|
|
fn shift_key(&self) -> bool;
|
|
fn get_modifier_state(&self, key_code: &str) -> bool;
|
|
}
|
|
|
|
pub trait PointerEventInner: Debug {
|
|
// Mouse only
|
|
fn alt_key(&self) -> bool;
|
|
fn button(&self) -> usize;
|
|
fn buttons(&self) -> usize;
|
|
fn client_x(&self) -> i32;
|
|
fn client_y(&self) -> i32;
|
|
fn ctrl_key(&self) -> bool;
|
|
fn meta_key(&self) -> bool;
|
|
fn page_x(&self) -> i32;
|
|
fn page_y(&self) -> i32;
|
|
fn screen_x(&self) -> i32;
|
|
fn screen_y(&self) -> i32;
|
|
fn shift_key(&self) -> bool;
|
|
fn get_modifier_state(&self, key_code: usize) -> bool;
|
|
fn pointer_id(&self) -> usize;
|
|
fn width(&self) -> usize;
|
|
fn height(&self) -> usize;
|
|
fn pressure(&self) -> usize;
|
|
fn tangential_pressure(&self) -> usize;
|
|
fn tilt_x(&self) -> i32;
|
|
fn tilt_y(&self) -> i32;
|
|
fn twist(&self) -> i32;
|
|
fn pointer_type(&self) -> String;
|
|
fn is_primary(&self) -> bool;
|
|
}
|
|
|
|
pub trait SelectionEventInner: Debug {}
|
|
|
|
pub trait TouchEventInner: Debug {
|
|
fn alt_key(&self) -> bool;
|
|
fn ctrl_key(&self) -> bool;
|
|
fn meta_key(&self) -> bool;
|
|
fn shift_key(&self) -> bool;
|
|
fn get_modifier_state(&self, key_code: usize) -> bool;
|
|
// changedTouches: DOMTouchList,
|
|
// targetTouches: DOMTouchList,
|
|
// touches: DOMTouchList,
|
|
}
|
|
|
|
pub trait UIEventInner: Debug {
|
|
// DOMAbstractView view
|
|
fn detail(&self) -> i32;
|
|
}
|
|
|
|
pub trait WheelEventInner: Debug {
|
|
fn delta_mode(&self) -> i32;
|
|
fn delta_x(&self) -> i32;
|
|
fn delta_y(&self) -> i32;
|
|
fn delta_z(&self) -> i32;
|
|
}
|
|
|
|
pub trait MediaEventInner: Debug {}
|
|
|
|
pub trait ImageEventInner: Debug {
|
|
// load error
|
|
}
|
|
|
|
pub trait AnimationEventInner: Debug {
|
|
fn animation_name(&self) -> String;
|
|
fn pseudo_element(&self) -> String;
|
|
fn elapsed_time(&self) -> f32;
|
|
}
|
|
|
|
pub trait TransitionEventInner: Debug {
|
|
fn property_name(&self) -> String;
|
|
fn pseudo_element(&self) -> String;
|
|
fn elapsed_time(&self) -> f32;
|
|
}
|
|
|
|
pub trait ToggleEventInner: Debug {}
|
|
|
|
pub use util::KeyCode;
|
|
mod util {
|
|
|
|
#[derive(Clone, Copy)]
|
|
pub enum KeyCode {
|
|
Backspace = 8,
|
|
Tab = 9,
|
|
Enter = 13,
|
|
Shift = 16,
|
|
Ctrl = 17,
|
|
Alt = 18,
|
|
Pause = 19,
|
|
CapsLock = 20,
|
|
Escape = 27,
|
|
PageUp = 33,
|
|
PageDown = 34,
|
|
End = 35,
|
|
Home = 36,
|
|
LeftArrow = 37,
|
|
UpArrow = 38,
|
|
RightArrow = 39,
|
|
DownArrow = 40,
|
|
Insert = 45,
|
|
Delete = 46,
|
|
_0 = 48,
|
|
_1 = 49,
|
|
_2 = 50,
|
|
_3 = 51,
|
|
_4 = 52,
|
|
_5 = 53,
|
|
_6 = 54,
|
|
_7 = 55,
|
|
_8 = 56,
|
|
_9 = 57,
|
|
A = 65,
|
|
B = 66,
|
|
C = 67,
|
|
D = 68,
|
|
E = 69,
|
|
F = 70,
|
|
G = 71,
|
|
H = 72,
|
|
I = 73,
|
|
J = 74,
|
|
K = 75,
|
|
L = 76,
|
|
M = 77,
|
|
N = 78,
|
|
O = 79,
|
|
P = 80,
|
|
Q = 81,
|
|
R = 82,
|
|
S = 83,
|
|
T = 84,
|
|
U = 85,
|
|
V = 86,
|
|
W = 87,
|
|
X = 88,
|
|
Y = 89,
|
|
Z = 90,
|
|
LeftWindow = 91,
|
|
RightWindow = 92,
|
|
SelectKey = 93,
|
|
Numpad0 = 96,
|
|
Numpad1 = 97,
|
|
Numpad2 = 98,
|
|
Numpad3 = 99,
|
|
Numpad4 = 100,
|
|
Numpad5 = 101,
|
|
Numpad6 = 102,
|
|
Numpad7 = 103,
|
|
Numpad8 = 104,
|
|
Numpad9 = 105,
|
|
Multiply = 106,
|
|
Add = 107,
|
|
Subtract = 109,
|
|
DecimalPoint = 110,
|
|
Divide = 111,
|
|
F1 = 112,
|
|
F2 = 113,
|
|
F3 = 114,
|
|
F4 = 115,
|
|
F5 = 116,
|
|
F6 = 117,
|
|
F7 = 118,
|
|
F8 = 119,
|
|
F9 = 120,
|
|
F10 = 121,
|
|
F11 = 122,
|
|
F12 = 123,
|
|
NumLock = 144,
|
|
ScrollLock = 145,
|
|
Semicolon = 186,
|
|
EqualSign = 187,
|
|
Comma = 188,
|
|
Dash = 189,
|
|
Period = 190,
|
|
ForwardSlash = 191,
|
|
GraveAccent = 192,
|
|
OpenBracket = 219,
|
|
BackSlash = 220,
|
|
CloseBraket = 221,
|
|
SingleQuote = 222,
|
|
Unknown,
|
|
}
|
|
|
|
impl KeyCode {
|
|
pub fn from_raw_code(i: u8) -> Self {
|
|
use KeyCode::*;
|
|
match i {
|
|
8 => Backspace,
|
|
9 => Tab,
|
|
13 => Enter,
|
|
16 => Shift,
|
|
17 => Ctrl,
|
|
18 => Alt,
|
|
19 => Pause,
|
|
20 => CapsLock,
|
|
27 => Escape,
|
|
33 => PageUp,
|
|
34 => PageDown,
|
|
35 => End,
|
|
36 => Home,
|
|
37 => LeftArrow,
|
|
38 => UpArrow,
|
|
39 => RightArrow,
|
|
40 => DownArrow,
|
|
45 => Insert,
|
|
46 => Delete,
|
|
48 => _0,
|
|
49 => _1,
|
|
50 => _2,
|
|
51 => _3,
|
|
52 => _4,
|
|
53 => _5,
|
|
54 => _6,
|
|
55 => _7,
|
|
56 => _8,
|
|
57 => _9,
|
|
65 => A,
|
|
66 => B,
|
|
67 => C,
|
|
68 => D,
|
|
69 => E,
|
|
70 => F,
|
|
71 => G,
|
|
72 => H,
|
|
73 => I,
|
|
74 => J,
|
|
75 => K,
|
|
76 => L,
|
|
77 => M,
|
|
78 => N,
|
|
79 => O,
|
|
80 => P,
|
|
81 => Q,
|
|
82 => R,
|
|
83 => S,
|
|
84 => T,
|
|
85 => U,
|
|
86 => V,
|
|
87 => W,
|
|
88 => X,
|
|
89 => Y,
|
|
90 => Z,
|
|
91 => LeftWindow,
|
|
92 => RightWindow,
|
|
93 => SelectKey,
|
|
96 => Numpad0,
|
|
97 => Numpad1,
|
|
98 => Numpad2,
|
|
99 => Numpad3,
|
|
100 => Numpad4,
|
|
101 => Numpad5,
|
|
102 => Numpad6,
|
|
103 => Numpad7,
|
|
104 => Numpad8,
|
|
105 => Numpad9,
|
|
106 => Multiply,
|
|
107 => Add,
|
|
109 => Subtract,
|
|
110 => DecimalPoint,
|
|
111 => Divide,
|
|
112 => F1,
|
|
113 => F2,
|
|
114 => F3,
|
|
115 => F4,
|
|
116 => F5,
|
|
117 => F6,
|
|
118 => F7,
|
|
119 => F8,
|
|
120 => F9,
|
|
121 => F10,
|
|
122 => F11,
|
|
123 => F12,
|
|
144 => NumLock,
|
|
145 => ScrollLock,
|
|
186 => Semicolon,
|
|
187 => EqualSign,
|
|
188 => Comma,
|
|
189 => Dash,
|
|
190 => Period,
|
|
191 => ForwardSlash,
|
|
192 => GraveAccent,
|
|
219 => OpenBracket,
|
|
220 => BackSlash,
|
|
221 => CloseBraket,
|
|
222 => SingleQuote,
|
|
_ => Unknown,
|
|
}
|
|
}
|
|
|
|
// get the raw code
|
|
fn raw_code(&self) -> u32 {
|
|
*self as u32
|
|
}
|
|
}
|
|
}
|
|
}
|