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gaia/apps/system/js/operator_icon.js

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+/* global BaseIcon, MobileOperator */
+'use strict';
+
+(function(exports) {
+  var OperatorIcon = function(manager) {
+    BaseIcon.call(this, manager);
+  };
+  OperatorIcon.prototype = Object.create(BaseIcon.prototype);
+  OperatorIcon.prototype.name = 'OperatorIcon';
+  OperatorIcon.prototype.onrender = function() {
+    if (!this._observer) {
+      this._observer = new MutationObserver(this._handleTextChanged.bind(this));
+    }
+    this._observer.observe(this.element,
+      { characterData: true, childList: true });
+  };
+
+  OperatorIcon.prototype.containerElement =
+    document.getElementById('statusbar-tray') ||
+    document.createElement('div');
+
+  OperatorIcon.prototype._handleTextChanged = function() {
+    if (this.previousTextContent === this.element.textContent) {
+      return;
+    }
+    this.previousTextContent = this.element.textContent;
+    this.publish('widthchanged');
+  };
+  OperatorIcon.prototype._stop = function() {
+    this._observer && this._observer.disconnect();
+  };
+
+  OperatorIcon.prototype.view = function view() {
+    return `<div id="statusbar-operator"
+              class="sb-start-upper sb-icon-operator statusbar-operator"
+              role="listitem">
+            </div>`;
+  };
+
+  OperatorIcon.prototype.update = function(now) {
+    if (!this.element || !this.enabled()) {
+      return;
+    }
+    this.show();
+
+    now = now || new Date();
+    var l10nArgs = JSON.parse(this.element.dataset.l10nArgs || '{}');
+    l10nArgs.date = now.toLocaleString(navigator.languages, {
+      month: 'short',
+      day: 'numeric'
+    });
+    var conns = this.manager.mobileConnections;
+    var conn;
+
+    // Do not show carrier's name if there are multiple sim cards.
+    if (conns && conns.length == 1) {
+      conn = conns[0];
+    }
+
+    var label = this.element;
+
+    if (!conn || !conn.voice || !conn.voice.connected ||
+        conn.voice.emergencyCallsOnly) {
+      delete l10nArgs.operator;
+      label.dataset.l10nArgs = JSON.stringify(l10nArgs);
+
+      label.dataset.l10nId = '';
+      label.textContent = l10nArgs.date;
+      return;
+    }
+
+    var operatorInfos = MobileOperator.userFacingInfo(conn);
+    l10nArgs.operator = operatorInfos.operator;
+
+    if (operatorInfos.region) {
+      l10nArgs.operator += ' ' + operatorInfos.region;
+    }
+
+    navigator.mozL10n.setAttributes(label, 'statusbarOperator', l10nArgs);
+  };
+  exports.OperatorIcon = OperatorIcon;
+}(window));