102 lines
2.9 KiB
JavaScript
102 lines
2.9 KiB
JavaScript
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// SPDX-FileCopyrightText: Night Theme Switcher Contributors
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// SPDX-License-Identifier: GPL-3.0-or-later
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import * as debug from '../debug.js';
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/**
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* Function called when the time changes.
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*
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* @callback TimeChangedCallback
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* @param {Time} time New time.
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*/
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/**
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* The Switcher runs a callback function when the time changes.
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*
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*/
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export class Switcher {
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#name;
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#timer;
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#settings;
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#callback;
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#disableable;
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#statusConnection = null;
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#timerConnection = null;
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/**
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* @param {object} params Params object.
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* @param {string} params.name Name of the switcher.
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* @param {Timer} params.timer Timer to listen to.
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* @param {Gio.Settings} params.settings Settings.
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* @param {TimeChangedCallback} params.callback Callback function.
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* @param {boolean} params.disableable If the switcher can be disabled using an `enabled` key in the settings.
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*/
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constructor({ name, timer, settings, callback, disableable = false }) {
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this.#name = name;
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this.#timer = timer;
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this.#settings = settings;
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this.#callback = callback;
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this.#disableable = disableable;
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}
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enable() {
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debug.message(`Enabling ${this.#name} switcher...`);
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if (this.#disableable)
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this.#watchStatus();
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if (!this.#disableable || this.#settings.get_boolean('enabled')) {
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this.#connectTimer();
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this.#onTimeChanged();
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}
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debug.message(`${this.#name} switcher enabled.`);
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}
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disable() {
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debug.message(`Disabling ${this.#name} switcher...`);
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this.#disconnectTimer();
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if (this.#disableable)
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this.#unwatchStatus();
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debug.message(`${this.#name} switcher disabled.`);
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}
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#watchStatus() {
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debug.message(`Watching ${this.#name} switching status...`);
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this.#statusConnection = this.#settings.connect('changed::enabled', this.#onStatusChanged.bind(this));
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}
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#unwatchStatus() {
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if (this.#statusConnection) {
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this.#settings.disconnect(this.#statusConnection);
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this.#statusConnection = null;
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}
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debug.message(`Stopped watching ${this.#name} switching status.`);
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}
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#connectTimer() {
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debug.message(`Connecting ${this.#name} switcher to Timer...`);
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this.#timerConnection = this.#timer.connect('notify::time', this.#onTimeChanged.bind(this));
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}
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#disconnectTimer() {
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if (this.#timerConnection) {
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this.#timer.disconnect(this.#timerConnection);
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this.#timerConnection = null;
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}
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debug.message(`Disconnected ${this.#name} switcher from Timer.`);
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}
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#onStatusChanged() {
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debug.message(`${this.#name} switching has been ${this.#settings.get_boolean('enabled') ? 'enabled' : 'disabled'}.`);
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this.disable();
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this.enable();
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}
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#onTimeChanged() {
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this.#callback(this.#timer.time);
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}
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}
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