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Gamepad: Remove GamepadList and fix dropped connection event on startup (#31684)

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* Replace GamepadList

* Fix initial gamepad connection event from gilrs getting dropped

* Fix gamepad reconnection issues, use MutNullableDom

* Reduce some repetition in handle_gamepad_events

* Address feedback, move some steps to navigator methods

* Refactor internal navigator gamepad methods

* Add note re: unused gilrs index, adjust navigator gamepad methods
This commit is contained in:
Daniel Adams 2024-04-07 23:43:48 -10:00 • committed by GitHub
parent ddbec46e1f
commit e38b34a629
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GPG key ID: B5690EEEBB952194
8 changed files with 91 additions and 146 deletions
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4
components/script/dom/gamepad.rs
View file

@ -199,6 +199,10 @@ impl Gamepad {
}
}
pub fn index(&self) -> i32 {
self.index.get()
}
pub fn update_index(&self, index: i32) {
self.index.set(index);
}

79
components/script/dom/gamepadlist.rs
View file

@ -1,79 +0,0 @@
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use dom_struct::dom_struct;
use crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::GamepadListBinding::GamepadListMethods;
use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::gamepad::Gamepad;
use crate::dom::globalscope::GlobalScope;
// https://www.w3.org/TR/gamepad/
#[dom_struct]
pub struct GamepadList {
reflector_: Reflector,
list: DomRefCell<Vec<Dom<Gamepad>>>,
}
impl GamepadList {
fn new_inherited(list: &[&Gamepad]) -> GamepadList {
GamepadList {
reflector_: Reflector::new(),
list: DomRefCell::new(list.iter().map(|g| Dom::from_ref(&**g)).collect()),
}
}
pub fn new(global: &GlobalScope, list: &[&Gamepad]) -> DomRoot<GamepadList> {
reflect_dom_object(Box::new(GamepadList::new_inherited(list)), global)
}
pub fn add_if_not_exists(&self, gamepads: &[DomRoot<Gamepad>]) {
for gamepad in gamepads {
if !self
.list
.borrow()
.iter()
.any(|g| g.gamepad_id() == gamepad.gamepad_id())
{
self.list.borrow_mut().push(Dom::from_ref(gamepad));
// Ensure that the gamepad has the correct index
gamepad.update_index(self.list.borrow().len() as i32 - 1);
}
}
}
pub fn remove_gamepad(&self, index: usize) {
self.list.borrow_mut().remove(index);
}
pub fn list(&self) -> Vec<Option<DomRoot<Gamepad>>> {
self.list
.borrow()
.iter()
.map(|gamepad| Some(DomRoot::from_ref(&**gamepad)))
.collect()
}
}
impl GamepadListMethods for GamepadList {
// https://w3c.github.io/gamepad/#dom-navigator-getgamepads
fn Length(&self) -> u32 {
self.list.borrow().len() as u32
}
// https://w3c.github.io/gamepad/#dom-navigator-getgamepads
fn Item(&self, index: u32) -> Option<DomRoot<Gamepad>> {
self.list
.borrow()
.get(index as usize)
.map(|gamepad| DomRoot::from_ref(&**gamepad))
}
// https://w3c.github.io/gamepad/#dom-navigator-getgamepads
fn IndexedGetter(&self, index: u32) -> Option<DomRoot<Gamepad>> {
self.Item(index)
}
}

59
components/script/dom/globalscope.rs
View file

@ -63,10 +63,10 @@ use super::bindings::trace::HashMapTracedValues;
use crate::dom::bindings::cell::{DomRefCell, RefMut};
use crate::dom::bindings::codegen::Bindings::BroadcastChannelBinding::BroadcastChannelMethods;
use crate::dom::bindings::codegen::Bindings::EventSourceBinding::EventSource_Binding::EventSourceMethods;
use crate::dom::bindings::codegen::Bindings::GamepadListBinding::GamepadList_Binding::GamepadListMethods;
use crate::dom::bindings::codegen::Bindings::ImageBitmapBinding::{
ImageBitmapOptions, ImageBitmapSource,
};
use crate::dom::bindings::codegen::Bindings::NavigatorBinding::NavigatorMethods;
use crate::dom::bindings::codegen::Bindings::PerformanceBinding::Performance_Binding::PerformanceMethods;
use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::PermissionState;
use crate::dom::bindings::codegen::Bindings::VoidFunctionBinding::VoidFunction;
@ -3133,7 +3133,10 @@ impl GlobalScope {
/// <https://www.w3.org/TR/gamepad/#dfn-gamepadconnected>
pub fn handle_gamepad_connect(
&self,
index: usize,
// As the spec actually defines how to set the gamepad index, the GilRs index
// is currently unused, though in practice it will almost always be the same.
// More infra is currently needed to track gamepads across windows.
_index: usize,
name: String,
axis_bounds: (f64, f64),
button_bounds: (f64, f64),
@ -3144,19 +3147,12 @@ impl GlobalScope {
self.gamepad_task_source().queue_with_canceller(
task!(gamepad_connected: move || {
let global = this.root();
let gamepad = Gamepad::new(&global, index as u32, name, axis_bounds, button_bounds);
if let Some(window) = global.downcast::<Window>() {
let has_gesture = window.Navigator().has_gamepad_gesture();
if has_gesture {
gamepad.set_exposed(true);
if window.Document().is_fully_active() {
gamepad.update_connected(true, has_gesture);
}
}
let gamepad_list = window.Navigator().gamepads();
let gamepad_arr: [DomRoot<Gamepad>; 1] = [gamepad.clone()];
gamepad_list.add_if_not_exists(&gamepad_arr);
let navigator = window.Navigator();
let selected_index = navigator.select_gamepad_index();
let gamepad = Gamepad::new(&global, selected_index, name, axis_bounds, button_bounds);
navigator.set_gamepad(selected_index as usize, &*gamepad);
}
}),
&self.task_canceller(TaskSourceName::Gamepad)
@ -3172,18 +3168,11 @@ impl GlobalScope {
task!(gamepad_disconnected: move || {
let global = this.root();
if let Some(window) = global.downcast::<Window>() {
let gamepad_list = window.Navigator().gamepads();
if let Some(gamepad) = gamepad_list.Item(index as u32) {
let navigator = window.Navigator();
if let Some(gamepad) = navigator.get_gamepad(index) {
if window.Document().is_fully_active() {
gamepad.update_connected(false, gamepad.exposed());
gamepad_list.remove_gamepad(index);
}
}
for i in (0..gamepad_list.Length()).rev() {
if gamepad_list.Item(i).is_none() {
gamepad_list.remove_gamepad(i as usize);
} else {
break;
navigator.remove_gamepad(index);
}
}
}
@ -3203,11 +3192,10 @@ impl GlobalScope {
task!(update_gamepad_state: move || {
let global = this.root();
if let Some(window) = global.downcast::<Window>() {
let gamepad_list = window.Navigator().gamepads();
if let Some(gamepad) = gamepad_list.Item(index as u32) {
let navigator = window.Navigator();
if let Some(gamepad) = navigator.get_gamepad(index) {
let current_time = global.performance().Now();
gamepad.update_timestamp(*current_time);
match update_type {
GamepadUpdateType::Axis(index, value) => {
gamepad.map_and_normalize_axes(index, value);
@ -3216,26 +3204,27 @@ impl GlobalScope {
gamepad.map_and_normalize_buttons(index, value);
}
};
if !window.Navigator().has_gamepad_gesture() && contains_user_gesture(update_type) {
window.Navigator().set_has_gamepad_gesture(true);
for i in 0..gamepad_list.Length() {
if let Some(gamepad) = gamepad_list.Item(i) {
if !navigator.has_gamepad_gesture() && contains_user_gesture(update_type) {
navigator.set_has_gamepad_gesture(true);
navigator.GetGamepads()
.iter()
.filter_map(|g| g.as_ref())
.for_each(|gamepad| {
gamepad.set_exposed(true);
gamepad.update_timestamp(*current_time);
let new_gamepad = Trusted::new(&*gamepad);
let new_gamepad = Trusted::new(&**gamepad);
if window.Document().is_fully_active() {
window.task_manager().gamepad_task_source().queue_with_canceller(
task!(update_gamepad_connect: move || {
let gamepad = new_gamepad.root();
gamepad.notify_event(GamepadEventType::Connected);
}),
&window.upcast::<GlobalScope>().task_canceller(TaskSourceName::Gamepad),
&window.upcast::<GlobalScope>()
.task_canceller(TaskSourceName::Gamepad),
)
.expect("Failed to queue update gamepad connect task.");
}
}
}
});
}
}
}

1
components/script/dom/mod.rs
View file

@ -319,7 +319,6 @@ pub mod gamepad;
pub mod gamepadbutton;
pub mod gamepadbuttonlist;
pub mod gamepadevent;
pub mod gamepadlist;
pub mod gamepadpose;
pub mod globalscope;
pub mod gpu;

56
components/script/dom/navigator.rs
View file

@ -9,6 +9,7 @@ use dom_struct::dom_struct;
use js::jsval::JSVal;
use lazy_static::lazy_static;
use crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::NavigatorBinding::NavigatorMethods;
use crate::dom::bindings::codegen::Bindings::WindowBinding::Window_Binding::WindowMethods;
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
@ -17,7 +18,7 @@ use crate::dom::bindings::str::DOMString;
use crate::dom::bindings::utils::to_frozen_array;
use crate::dom::bluetooth::Bluetooth;
use crate::dom::gamepad::Gamepad;
use crate::dom::gamepadlist::GamepadList;
use crate::dom::gamepadevent::GamepadEventType;
use crate::dom::gpu::GPU;
use crate::dom::mediadevices::MediaDevices;
use crate::dom::mediasession::MediaSession;
@ -47,7 +48,7 @@ pub struct Navigator {
xr: MutNullableDom<XRSystem>,
mediadevices: MutNullableDom<MediaDevices>,
/// <https://www.w3.org/TR/gamepad/#dfn-gamepads>
gamepads: MutNullableDom<GamepadList>,
gamepads: DomRefCell<Vec<MutNullableDom<Gamepad>>>,
permissions: MutNullableDom<Permissions>,
mediasession: MutNullableDom<MediaSession>,
gpu: MutNullableDom<GPU>,
@ -81,9 +82,50 @@ impl Navigator {
self.xr.get()
}
pub fn gamepads(&self) -> DomRoot<GamepadList> {
self.gamepads
.or_init(|| GamepadList::new(&self.global(), &[]))
pub fn get_gamepad(&self, index: usize) -> Option<DomRoot<Gamepad>> {
self.gamepads.borrow().get(index).and_then(|g| g.get())
}
pub fn set_gamepad(&self, index: usize, gamepad: &Gamepad) {
if let Some(gamepad_to_set) = self.gamepads.borrow().get(index) {
gamepad_to_set.set(Some(gamepad));
}
if self.has_gamepad_gesture.get() {
gamepad.set_exposed(true);
if self.global().as_window().Document().is_fully_active() {
gamepad.notify_event(GamepadEventType::Connected);
}
}
}
pub fn remove_gamepad(&self, index: usize) {
if let Some(gamepad_to_remove) = self.gamepads.borrow_mut().get(index) {
gamepad_to_remove.set(None);
}
self.shrink_gamepads_list();
}
/// <https://www.w3.org/TR/gamepad/#dfn-selecting-an-unused-gamepad-index>
pub fn select_gamepad_index(&self) -> u32 {
let mut gamepad_list = self.gamepads.borrow_mut();
if let Some(index) = gamepad_list.iter().position(|g| g.get().is_none()) {
index as u32
} else {
let len = gamepad_list.len();
gamepad_list.resize_with(len + 1, Default::default);
len as u32
}
}
fn shrink_gamepads_list(&self) {
let mut gamepad_list = self.gamepads.borrow_mut();
for i in (0..gamepad_list.len()).rev() {
if gamepad_list.get(i as usize).is_none() {
gamepad_list.remove(i as usize);
} else {
break;
}
}
}
pub fn has_gamepad_gesture(&self) -> bool {
@ -200,9 +242,7 @@ impl NavigatorMethods for Navigator {
return Vec::new();
}
let root = self.gamepads.or_init(|| GamepadList::new(&global, &[]));
root.list()
self.gamepads.borrow().iter().map(|g| g.get()).collect()
}
// https://w3c.github.io/permissions/#navigator-and-workernavigator-extension
fn Permissions(&self) -> DomRoot<Permissions> {

10
components/script/dom/webidls/GamepadList.webidl
View file

@ -1,10 +0,0 @@
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
// https://w3c.github.io/gamepad/#navigator-interface-extension
[Exposed=Window, Pref="dom.gamepad.enabled"]
interface GamepadList {
getter Gamepad? item(unsigned long index);
readonly attribute unsigned long length;
};