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gaia/shared/elements/gaia_progress/script.js

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+'use strict';
+/* global ComponentUtils */
+
+window.GaiaProgress = (function(win) {
+  // Extend from the HTMLElement prototype
+  var proto = Object.create(HTMLElement.prototype);
+
+  // Allow baseurl to be overridden (used for demo page)
+  var baseurl = window.GaiaProgressBaseurl || '/shared/elements/gaia_progress/';
+
+  proto.createdCallback = function() {
+    //set Accessibility attributes on creation
+    this.setAttribute('role', 'progressbar');
+    this.setAttribute('aria-live', 'polite');
+
+    var shadow = this.createShadowRoot();
+
+    this._template = template.content.cloneNode(true);
+    this._progress = this._template.getElementById('progress');
+
+    shadow.appendChild(this._template);
+
+    ComponentUtils.style.call(this, baseurl);
+
+    if (this.hasAttribute('animated')) {
+      this.start();
+    }
+  };
+
+  /**
+   * Starts the animation for the gaia-progress element.
+   * This is a workaround for bug 962594.
+   */
+  proto.start = function() {
+    this.setAttribute('animated', '');
+    this._progress.classList.add('animated');
+    this.setAttribute('data-l10n-id', 'gaia-progress-loading');
+  };
+
+  /**
+   * Stops the animation for the gaia-progress element.
+   * This is a workaround for bug 962594.
+   */
+  proto.stop = function() {
+    this.removeAttribute('animated');
+    this._progress.classList.remove('animated');
+    this.setAttribute('data-l10n-id', 'gaia-progress-loaded');
+  };
+
+  var template = document.createElement('template');
+  template.innerHTML = '<div id="progress"></div>';
+
+  // Register and return the constructor
+  return document.registerElement('gaia-progress', { prototype: proto });
+})(window);