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gaia/shared/elements/gaia_menu/script.js

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+'use strict';
+/* global ComponentUtils */
+
+window.GaiaMenu = (function(win) {
+  // Extend from HTMLElement prototype
+  var proto = Object.create(HTMLElement.prototype);
+
+  // Allow baseurl to be overridden (used for demo page)
+  var baseurl = window.GaiaMenuBaseurl ||
+    '/shared/elements/gaia_menu/';
+
+  proto.createdCallback = function () {
+    var shadow = this.createShadowRoot();
+
+    this._template = template.content.cloneNode(true);
+
+    var cancelButton = this._template.querySelector('.gaia-menu-cancel button');
+
+    cancelButton.addEventListener('click', function () {
+      this.hide();
+      this.dispatchEvent(new CustomEvent('gaiamenu-cancel'));
+    }.bind(this));
+
+    shadow.appendChild(this._template);
+
+    ComponentUtils.style.call(this, baseurl);
+
+    document.l10n.ready.then(this.localize.bind(this));
+    document.addEventListener('DOMRetranslated', this.localize.bind(this));
+  };
+
+  proto.localize = function() {
+    document.l10n.formatValue('gaia-menu-cancel').then(value => {
+      this.shadowRoot.querySelector('button').textContent = value;
+    });
+  };
+
+  proto.show = function() {
+    this.removeAttribute('hidden');
+  };
+
+  proto.hide = function() {
+    this.setAttribute('hidden', 'hidden');
+  };
+
+  var template = document.createElement('template');
+
+  template.innerHTML =
+    `<form role="dialog" data-type="action">
+      <content select="header"></content>
+      <menu>
+        <content select="button"></content>
+        <span class="gaia-menu-cancel">
+          <button>Cancel</button>
+        </span>
+      </menu>
+    </form>`;
+
+  // Register and return the constructor
+  return document.registerElement('gaia-menu', { prototype: proto });
+
+})(window);