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68 lines
2.3 KiB
JavaScript
68 lines
2.3 KiB
JavaScript
"use strict";
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const render_loader = require("../templates/loader.hbs");
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exports.make_indicator = function (outer_container, opts) {
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opts = opts || {};
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let container = outer_container;
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// TODO: We set white-space to 'nowrap' because under some
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// unknown circumstances (it happens on Keegan's laptop) the text
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// width calculation, above, returns a result that's a few pixels
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// too small. The container's div will be slightly too small,
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// but that's probably OK for our purposes.
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outer_container.css({"white-space": "nowrap"});
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container.empty();
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if (opts.abs_positioned !== undefined && opts.abs_positioned) {
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// Create some additional containers to facilitate absolutely
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// positioned spinners.
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const container_id = container.attr("id");
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let inner_container = $('<div id="' + container_id + '_box_container"></div>');
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container.append(inner_container);
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container = inner_container;
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inner_container = $('<div id="' + container_id + '_box"></div>');
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container.append(inner_container);
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container = inner_container;
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}
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const spinner_elem = $('<div class="loading_indicator_spinner" aria-hidden="true"></div>');
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spinner_elem.html(render_loader({container_id: outer_container.attr("id")}));
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container.append(spinner_elem);
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let text_width = 0;
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if (opts.text !== undefined && opts.text !== "") {
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const text_elem = $('<span class="loading_indicator_text"></span>');
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text_elem.text(opts.text);
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container.append(text_elem);
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// See note, below
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if (!(opts.abs_positioned !== undefined && opts.abs_positioned)) {
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text_width = 20 + text_elem.width();
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}
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}
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// These width calculations are tied to the spinner width and
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// margins defined via CSS
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container.css({width: 38 + text_width, height: 0});
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outer_container.data("destroying", false);
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};
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exports.destroy_indicator = function (container) {
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if (container.data("destroying")) {
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return;
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}
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container.data("destroying", true);
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const spinner = container.data("spinner_obj");
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if (spinner !== undefined) {
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spinner.stop();
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}
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container.removeData("spinner_obj");
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container.empty();
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container.css({width: 0, height: 0});
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};
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window.loading = exports;
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