chore: version inicial del codigo fuente del LMS Estafeta

2026-10-02 20:33:12 -06:00
commit c8bb6b97b9
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+/* *
+ *
+ *  (c) 2009-2020 Øystein Moseng
+ *
+ *  Create announcer to speak messages to screen readers and other AT.
+ *
+ *  License: www.highcharts.com/license
+ *
+ *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
+ *
+ * */
+'use strict';
+import H from '../../Core/Globals.js';
+import DOMElementProvider from './DOMElementProvider.js';
+import HTMLUtilities from './HTMLUtilities.js';
+var visuallyHideElement = HTMLUtilities.visuallyHideElement;
+var Announcer = /** @class */ (function () {
+    function Announcer(chart, type) {
+        this.chart = chart;
+        this.domElementProvider = new DOMElementProvider();
+        this.announceRegion = this.addAnnounceRegion(type);
+    }
+    Announcer.prototype.destroy = function () {
+        this.domElementProvider.destroyCreatedElements();
+    };
+    Announcer.prototype.announce = function (message) {
+        var _this = this;
+        this.announceRegion.innerHTML = message;
+        // Delete contents after a little while to avoid user finding the live
+        // region in the DOM.
+        if (this.clearAnnouncementRegionTimer) {
+            clearTimeout(this.clearAnnouncementRegionTimer);
+        }
+        this.clearAnnouncementRegionTimer = setTimeout(function () {
+            _this.announceRegion.innerHTML = '';
+            delete _this.clearAnnouncementRegionTimer;
+        }, 1000);
+    };
+    Announcer.prototype.addAnnounceRegion = function (type) {
+        var chartContainer = this.chart.renderTo;
+        var div = this.domElementProvider.createElement('div');
+        div.setAttribute('aria-hidden', false);
+        div.setAttribute('aria-live', type);
+        visuallyHideElement(div);
+        chartContainer.insertBefore(div, chartContainer.firstChild);
+        return div;
+    };
+    return Announcer;
+}());
+H.Announcer = Announcer;
+export default Announcer;