gnome-shell/js/ui/components.js

61 lines
1.7 KiB
JavaScript

import * as Main from './main.js';
export class ComponentManager {
constructor() {
this._allComponents = {};
this._enabledComponents = [];
Main.sessionMode.connect('updated', () => {
this._sessionModeUpdated().catch(logError);
});
this._sessionModeUpdated().catch(logError);
}
async _sessionModeUpdated() {
let newEnabledComponents = Main.sessionMode.components;
await Promise.allSettled([...newEnabledComponents
.filter(name => !this._enabledComponents.includes(name))
.map(name => this._enableComponent(name))]);
this._enabledComponents
.filter(name => !newEnabledComponents.includes(name))
.forEach(name => this._disableComponent(name));
this._enabledComponents = newEnabledComponents;
}
async _importComponent(name) {
let module = await import(`./components/${name}.js`);
return module.Component;
}
async _ensureComponent(name) {
let component = this._allComponents[name];
if (component)
return component;
if (Main.sessionMode.isLocked)
return null;
let constructor = await this._importComponent(name);
component = new constructor();
this._allComponents[name] = component;
return component;
}
async _enableComponent(name) {
let component = await this._ensureComponent(name);
if (component)
component.enable();
}
_disableComponent(name) {
let component = this._allComponents[name];
if (component == null)
return;
component.disable();
}
}