3b1330880f
When not using arrow notation with anonymous functions, we use Lang.bind() to bind `this` to named callbacks. However since ES5, this functionality is already provided by Function.prototype.bind() - in fact, Lang.bind() itself uses it when no extra arguments are specified. Just use the built-in function directly where possible, and use arrow notation in the few places where we pass additional arguments. https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
66 lines
1.6 KiB
JavaScript
66 lines
1.6 KiB
JavaScript
|
|
const Lang = imports.lang;
|
|
const Main = imports.ui.main;
|
|
|
|
var ComponentManager = new Lang.Class({
|
|
Name: 'ComponentManager',
|
|
|
|
_init() {
|
|
this._allComponents = {};
|
|
this._enabledComponents = [];
|
|
|
|
Main.sessionMode.connect('updated', this._sessionUpdated.bind(this));
|
|
this._sessionUpdated();
|
|
},
|
|
|
|
_sessionUpdated() {
|
|
let newEnabledComponents = Main.sessionMode.components;
|
|
|
|
newEnabledComponents.filter(
|
|
name => this._enabledComponents.indexOf(name) == -1
|
|
).forEach(name => {
|
|
this._enableComponent(name);
|
|
});
|
|
|
|
this._enabledComponents.filter(
|
|
name => newEnabledComponents.indexOf(name) == -1
|
|
).forEach(name => {
|
|
this._disableComponent(name);
|
|
});
|
|
|
|
this._enabledComponents = newEnabledComponents;
|
|
},
|
|
|
|
_importComponent(name) {
|
|
let module = imports.ui.components[name];
|
|
return module.Component;
|
|
},
|
|
|
|
_ensureComponent(name) {
|
|
let component = this._allComponents[name];
|
|
if (component)
|
|
return component;
|
|
|
|
if (Main.sessionMode.isLocked)
|
|
return null;
|
|
|
|
let constructor = this._importComponent(name);
|
|
component = new constructor();
|
|
this._allComponents[name] = component;
|
|
return component;
|
|
},
|
|
|
|
_enableComponent(name) {
|
|
let component = this._ensureComponent(name);
|
|
if (component)
|
|
component.enable();
|
|
},
|
|
|
|
_disableComponent(name) {
|
|
let component = this._allComponents[name];
|
|
if (component == null)
|
|
return;
|
|
component.disable();
|
|
}
|
|
});
|