a657478675
- ignore all ambiguities that are not a problem - remove `.before(Assets::<Image>::track_assets),` that points into a different schedule (-> should this be caught?) - add some explicit orderings: - run `poll_receivers` and `update_accessibility_nodes` after `window_closed` in `bevy_winit::accessibility` - run `bevy_ui::accessibility::calc_bounds` after `CameraUpdateSystem` - run ` bevy_text::update_text2d_layout` and `bevy_ui::text_system` after `font_atlas_set::remove_dropped_font_atlas_sets` - add `app.ignore_ambiguity(a, b)` function for cases where you want to ignore an ambiguity between two independent plugins `A` and `B` - add `IgnoreAmbiguitiesPlugin` in `DefaultPlugins` that allows cross-crate ambiguities like `bevy_animation`/`bevy_ui` - Fixes https://github.com/bevyengine/bevy/issues/9511 ## Before **Render**  **PostUpdate**  ## After **Render**  **PostUpdate**  --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: Alice Cecile <alice.i.cecil@gmail.com> Co-authored-by: François <mockersf@gmail.com>
112 lines
3.3 KiB
Rust
112 lines
3.3 KiB
Rust
//! Accessibility for Bevy
|
|
|
|
#![warn(missing_docs)]
|
|
#![forbid(unsafe_code)]
|
|
|
|
use std::sync::{
|
|
atomic::{AtomicBool, Ordering},
|
|
Arc,
|
|
};
|
|
|
|
pub use accesskit;
|
|
use accesskit::NodeBuilder;
|
|
use bevy_app::Plugin;
|
|
use bevy_derive::{Deref, DerefMut};
|
|
use bevy_ecs::{
|
|
prelude::{Component, Entity, Event},
|
|
schedule::SystemSet,
|
|
system::Resource,
|
|
};
|
|
|
|
/// Wrapper struct for [`accesskit::ActionRequest`]. Required to allow it to be used as an `Event`.
|
|
#[derive(Event, Deref, DerefMut)]
|
|
pub struct ActionRequest(pub accesskit::ActionRequest);
|
|
|
|
/// Resource that tracks whether an assistive technology has requested
|
|
/// accessibility information.
|
|
///
|
|
/// Useful if a third-party plugin needs to conditionally integrate with
|
|
/// `AccessKit`
|
|
#[derive(Resource, Default, Clone, Debug, Deref, DerefMut)]
|
|
pub struct AccessibilityRequested(Arc<AtomicBool>);
|
|
|
|
impl AccessibilityRequested {
|
|
/// Returns `true` if an access technology is active and accessibility tree
|
|
/// updates should be sent.
|
|
pub fn get(&self) -> bool {
|
|
self.load(Ordering::SeqCst)
|
|
}
|
|
|
|
/// Sets whether accessibility updates were requested by an access technology.
|
|
pub fn set(&self, value: bool) {
|
|
self.store(value, Ordering::SeqCst);
|
|
}
|
|
}
|
|
|
|
/// Resource whose value determines whether the accessibility tree is updated
|
|
/// via the ECS.
|
|
///
|
|
/// Set to `false` in cases where an external GUI library is sending
|
|
/// accessibility updates instead. Without this, the external library and ECS
|
|
/// will generate conflicting updates.
|
|
#[derive(Resource, Clone, Debug, Deref, DerefMut)]
|
|
pub struct ManageAccessibilityUpdates(bool);
|
|
|
|
impl Default for ManageAccessibilityUpdates {
|
|
fn default() -> Self {
|
|
Self(true)
|
|
}
|
|
}
|
|
|
|
impl ManageAccessibilityUpdates {
|
|
/// Returns `true` if the ECS should update the accessibility tree.
|
|
pub fn get(&self) -> bool {
|
|
self.0
|
|
}
|
|
|
|
/// Sets whether the ECS should update the accessibility tree.
|
|
pub fn set(&mut self, value: bool) {
|
|
self.0 = value;
|
|
}
|
|
}
|
|
|
|
/// Component to wrap a [`accesskit::Node`], representing this entity to the platform's
|
|
/// accessibility API.
|
|
///
|
|
/// If an entity has a parent, and that parent also has an `AccessibilityNode`,
|
|
/// the entity's node will be a child of the parent's node.
|
|
///
|
|
/// If the entity doesn't have a parent, or if the immediate parent doesn't have
|
|
/// an `AccessibilityNode`, its node will be an immediate child of the primary window.
|
|
#[derive(Component, Clone, Deref, DerefMut)]
|
|
pub struct AccessibilityNode(pub NodeBuilder);
|
|
|
|
impl From<NodeBuilder> for AccessibilityNode {
|
|
fn from(node: NodeBuilder) -> Self {
|
|
Self(node)
|
|
}
|
|
}
|
|
|
|
/// Resource representing which entity has keyboard focus, if any.
|
|
#[derive(Resource, Default, Deref, DerefMut)]
|
|
pub struct Focus(pub Option<Entity>);
|
|
|
|
/// Set enum for the systems relating to accessibility
|
|
#[derive(Debug, Hash, PartialEq, Eq, Clone, SystemSet)]
|
|
pub enum AccessibilitySystem {
|
|
/// Update the accessibility tree
|
|
Update,
|
|
}
|
|
|
|
/// Plugin managing non-GUI aspects of integrating with accessibility APIs.
|
|
pub struct AccessibilityPlugin;
|
|
|
|
impl Plugin for AccessibilityPlugin {
|
|
fn build(&self, app: &mut bevy_app::App) {
|
|
app.init_resource::<AccessibilityRequested>()
|
|
.init_resource::<ManageAccessibilityUpdates>()
|
|
.init_resource::<Focus>()
|
|
.allow_ambiguous_component::<AccessibilityNode>();
|
|
}
|
|
}
|