/
loadwebfonts.js
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/
loadwebfonts.js
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/*
* Copyright (c) 2014 Faust Edition development team.
*
* This file is part of the Faust Edition.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file Wrap the Google web font loader
*/
if (window.Faust === undefined) {
window.Faust = {};
}
(function (Faust) {
Fonts = {};
Fonts.active = function (callback) {
var fontError = false;
var webFontConfig = {
custom: {
families: ['Ubuntu derivative Faust', 'Ubuntu Monospace', 'Gentium Plus'],
// we don not need to specify urls as they are specified in the css files
urls: ['/css/webfonts.css']
},
// do not time out if font can't be loaded
timeout: 10, //Number.MAX_VALUE,
active: function () {
// if we made it this far without 'fontinactive' occurring, then all
// fonts have been loaded
if (!Faust.TranscriptConfiguration.forceFontLoading || !fontError) {
callback();
} else {
// do not try to render page
}
},
fontinactive: function (familyName, fvd) {
// font could not be loaded, abort
if (Faust.TranscriptConfiguration.forceFontLoading) {
fontError = true;
var message = "Error: web font could not be loaded: " + familyName + " " + fvd;
var htmlMessage = document.createElement('div');
htmlMessage.innerHTML = message;
document.body.append(htmlMessage);
throw(message);
}
}
};
WebFont.load(webFontConfig);
};
Faust.Fonts = Fonts;
})(Faust);