zulip/zephyr/static/js/util.js

60 lines
1.7 KiB
JavaScript

var util = (function () {
var exports = {};
// From MDN: https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Math/random
exports.random_int = function random_int(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
};
// We need to reset the favicon after changing the
// window.location.hash or Firefox will drop the favicon. See
// https://bugzilla.mozilla.org/show_bug.cgi?id=519028
exports.reset_favicon = function () {
$('link[rel="shortcut icon"]').detach().appendTo('head');
};
exports.make_loading_indicator = function (container, text) {
container.empty();
var spinner_elem = $('<div class="loading_indicator_spinner"></div>');
container.append(spinner_elem);
var text_width = 0;
if (text !== '' && text !== undefined) {
var text_elem = $('<span class="loading_indicator_text"></span>');
text_elem.text(text);
container.append(text_elem);
// See note, below
text_width = 20 + text_elem.width();
}
// These width calculations are tied to the spinner width and
// margins defined via CSS
container.css({width: 38 + text_width,
height: 38,
display: 'block'});
var spinner = new Spinner({
lines: 8,
length: 0,
width: 9,
radius: 9,
speed: 1.25,
shadow: false
}).spin(spinner_elem[0]);
container.data("spinner_obj", spinner);
};
exports.destroy_loading_indicator = function (container) {
var spinner = container.data("spinner_obj");
if (spinner !== undefined) {
spinner.stop();
}
container.removeData("spinner_obj");
container.empty();
container.css({width: 0, height: 0, display: 'none'});
};
return exports;
}());