zulip/static/js/loading.js

73 lines
2.3 KiB
JavaScript

var loading = (function () {
var exports = {};
exports.make_indicator = function (outer_container, opts) {
opts = opts || {};
var container = outer_container;
container.empty();
if (opts.abs_positioned !== undefined && opts.abs_positioned) {
// Create some additional containers to facilitate absolutely
// positioned spinners.
var container_id = container.attr('id');
var inner_container = $('<div id="' + container_id + '_box_container"></div>');
container.append(inner_container);
container = inner_container;
inner_container = $('<div id="' + container_id + '_box"></div>');
container.append(inner_container);
container = inner_container;
}
var spinner_elem = $('<div class="loading_indicator_spinner"></div>');
spinner_elem.html(templates.render("loader"));
container.append(spinner_elem);
var text_width = 0;
if (opts.text !== undefined && opts.text !== '') {
var text_elem = $('<span class="loading_indicator_text"></span>');
text_elem.text(opts.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
//
// TODO: We set white-space to 'nowrap' because under some
// unknown circumstances (it happens on Keegan's laptop) the text
// width calculation, above, returns a result that's a few pixels
// too small. The container's div will be slightly too small,
// but that's probably OK for our purposes.
container.css({width: 38 + text_width,
height: 38});
outer_container.css({display: 'block',
'white-space': 'nowrap'});
outer_container.data("destroying", false);
};
exports.destroy_indicator = function (container) {
if (container.data("destroying")) {
return;
}
container.data("destroying", true);
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;
}());
if (typeof module !== 'undefined') {
module.exports = loading;
}