molstar
Version:
A comprehensive macromolecular library.
65 lines (64 loc) • 1.91 kB
JavaScript
;
/**
* Copyright (c) 2018-2025 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author David Sehnal <david.sehnal@gmail.com>
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.StatefulPluginComponent = exports.PluginComponent = void 0;
const object_1 = require("../mol-util/object");
const rx_event_helper_1 = require("../mol-util/rx-event-helper");
const array_1 = require("../mol-util/array");
class PluginComponent {
constructor() {
this.subs = void 0;
}
subscribe(obs, action) {
if (!obs)
return { unsubscribe: () => { } };
if (typeof this.subs === 'undefined')
this.subs = [];
let sub = obs.subscribe(action);
this.subs.push(sub);
return {
unsubscribe: () => {
if (sub && this.subs && (0, array_1.arraySetRemove)(this.subs, sub)) {
sub.unsubscribe();
sub = void 0;
}
}
};
}
get ev() {
return this._ev || (this._ev = rx_event_helper_1.RxEventHelper.create());
}
dispose() {
if (this._ev)
this._ev.dispose();
if (this.subs) {
for (const s of this.subs)
s.unsubscribe();
this.subs = void 0;
}
}
}
exports.PluginComponent = PluginComponent;
class StatefulPluginComponent extends PluginComponent {
updateState(...states) {
const latest = this.state;
const s = (0, object_1.shallowMergeArray)(latest, states);
if (s !== latest) {
this._state = s;
return true;
}
return false;
}
get state() {
return this._state;
}
constructor(initialState) {
super();
this._state = initialState;
}
}
exports.StatefulPluginComponent = StatefulPluginComponent;