gnome-shell-teatime/src/utils.js

/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
/* Olaf Leidinger <oleid@mescharet.de>
   Thomas Liebetraut <thomas@tommie-lie.de>
*/

const Gio            = imports.gi.Gio;
const Lang           = imports.lang;
const Gettext        = imports.gettext;
const ExtensionUtils = imports.misc.extensionUtils;
const Me             = ExtensionUtils.getCurrentExtension();
const Config         = imports.misc.config;
const Gst            = imports.gi.Gst;

const TEATIME_STEEP_TIMES_KEY = 'steep-times';
const TEATIME_FULLSCREEN_NOTIFICATION_KEY = 'fullscreen-notification';
const TEATIME_GRAPHICAL_COUNTDOWN_KEY = 'graphical-countdown';
const TEATIME_USE_ALARM_SOUND_KEY = 'use-alarm-sound';
const TEATIME_ALARM_SOUND_KEY = 'alarm-sound-file';

const ENABLE_LOGGING = false;

function debug(text) {
    if (ENABLE_LOGGING)
        log("**TeaTime >: " + text);
}

function getExtensionLocaleDir() {
    // check if this extension was built with "make zip-file", and thus
    // has the locale files in a subfolder
    // otherwise assume that extension has been installed in the
    // same prefix as gnome-shell
    let localLocaleDir = ExtensionUtils.getCurrentExtension().dir.get_child('locale');
    let selectedDir = (localLocaleDir.query_exists(null))
        ? localLocaleDir.get_path()
        : Config.LOCALEDIR;

    debug("Using locale dir: " + selectedDir);

    return selectedDir;
}

function initTranslations(domain) {
    let extension = ExtensionUtils.getCurrentExtension();

    domain = domain || extension.metadata['gettext-domain'];

    Gettext.textdomain(domain);
    Gettext.bindtextdomain(domain, getExtensionLocaleDir());
}


function getSettings(schema) {
    let extension = ExtensionUtils.getCurrentExtension();

    schema = schema || extension.metadata['settings-schema'];

    const GioSSS = Gio.SettingsSchemaSource;

    // check if this extension was built with "make zip-file", and thus
    // has the schema files in a subfolder
    // otherwise assume that extension has been installed in the
    // same prefix as gnome-shell (and therefore schemas are available
    // in the standard folders)
    let schemaDir = extension.dir.get_child('schemas');
    let schemaSource;
    if (schemaDir.query_exists(null)) {
        schemaSource = GioSSS.new_from_directory(schemaDir.get_path(),
                                                 GioSSS.get_default(),
                                                 false);
    } else {
        schemaSource = GioSSS.get_default();
    }

    let schemaObj = schemaSource.lookup(schema, true);
    if (!schemaObj)
        throw new Error('Schema ' + schema + ' could not be found for extension '
                        + extension.metadata.uuid + '. Please check your installation.');

    return new Gio.Settings({ settings_schema: schemaObj });
}

function formatTime(sec_num) {
    /* toLocaleFormat would be nicer, however it doesn't work with
       Debian Wheezy and some later gnome versions */

    // based on code from
    //  http://stackoverflow.com/questions/6312993/javascript-seconds-to-time-with-format-hhmmss

    let hours   = Math.floor(sec_num / 3600);
    let minutes = Math.floor((sec_num - (hours * 3600)) / 60);
    let seconds = Math.round(sec_num - (hours * 3600) - (minutes * 60));

    if (hours   < 10) {hours   = "0"+hours;}
    if (minutes < 10) {minutes = "0"+minutes;}
    if (seconds < 10) {seconds = "0"+seconds;}

    return (( hours == "00") ?  "" : hours+':')  + minutes + ':' + seconds;
}

function playSound(uri) {
    if ( typeof this.player == 'undefined' ) {
        Gst.init(null, 0);
        this.player  = Gst.ElementFactory.make("playbin","player");
        this.playBus = this.player.get_bus();
        this.playBus.add_signal_watch();
        this.playBus.connect("message", Lang.bind(this,
        function(playBus, message) {
            if (message != null) {
                // IMPORTANT: to reuse the player, set state to READY
                let t = message.type;
                if ( t == Gst.MessageType.EOS || t == Gst.MessageType.ERROR) {
                    this.player.set_state(Gst.State.READY);
                }
            } // message handler
        }));
    } // if undefined
    this.player.set_property('uri', uri);
    this.player.set_state(Gst.State.PLAYING);
}

function setCairoColorFromClutter(cr, c) {
  let s=1.0/255;
  cr.setSourceRGBA(s*c.red, s*c.green, s*c.blue, s*c.alpha);
}