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f87c2a8d76
In a later PR, DomRoot<T> will become a type alias of Root<Dom<T>>, where Root<T> will be able to handle all the things that need to be rooted that have a stable traceable address that doesn't move for the whole lifetime of the root. Stay tuned.
61 lines
2.2 KiB
Rust
61 lines
2.2 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use dom::bindings::cell::DomRefCell;
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use dom::bindings::codegen::Bindings::GamepadListBinding;
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use dom::bindings::codegen::Bindings::GamepadListBinding::GamepadListMethods;
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use dom::bindings::reflector::{Reflector, reflect_dom_object};
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use dom::bindings::root::{Dom, DomRoot};
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use dom::gamepad::Gamepad;
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use dom::globalscope::GlobalScope;
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use dom_struct::dom_struct;
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// https://www.w3.org/TR/gamepad/
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#[dom_struct]
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pub struct GamepadList {
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reflector_: Reflector,
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list: DomRefCell<Vec<Dom<Gamepad>>>
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}
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impl GamepadList {
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fn new_inherited(list: &[&Gamepad]) -> GamepadList {
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GamepadList {
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reflector_: Reflector::new(),
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list: DomRefCell::new(list.iter().map(|g| Dom::from_ref(&**g)).collect())
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}
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}
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pub fn new(global: &GlobalScope, list: &[&Gamepad]) -> DomRoot<GamepadList> {
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reflect_dom_object(box GamepadList::new_inherited(list),
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global,
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GamepadListBinding::Wrap)
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}
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pub fn add_if_not_exists(&self, gamepads: &[DomRoot<Gamepad>]) {
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for gamepad in gamepads {
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if !self.list.borrow().iter().any(|g| g.gamepad_id() == gamepad.gamepad_id()) {
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self.list.borrow_mut().push(Dom::from_ref(&*gamepad));
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// Ensure that the gamepad has the correct index
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gamepad.update_index(self.list.borrow().len() as i32 - 1);
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}
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}
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}
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}
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impl GamepadListMethods for GamepadList {
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// https://w3c.github.io/gamepad/#dom-navigator-getgamepads
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fn Length(&self) -> u32 {
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self.list.borrow().len() as u32
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}
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// https://w3c.github.io/gamepad/#dom-navigator-getgamepads
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fn Item(&self, index: u32) -> Option<DomRoot<Gamepad>> {
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self.list.borrow().get(index as usize).map(|gamepad| DomRoot::from_ref(&**gamepad))
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}
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// https://w3c.github.io/gamepad/#dom-navigator-getgamepads
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fn IndexedGetter(&self, index: u32) -> Option<DomRoot<Gamepad>> {
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self.Item(index)
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}
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}
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