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gaia/apps/settings/js/panels/call/call_utils.js

@@ -0,0 +1,41 @@
+define(function() {
+  'use strict';
+
+  var conns = window.navigator.mozMobileConnections;
+
+  var CallUtils = {
+    /**
+     * Helper function. Check whether the phone number is valid or not.
+     *
+     * @param {String} number The phone number to check.
+     * @return {Boolean} Result.
+     */
+    isPhoneNumberValid: function(number) {
+      if (number) {
+        var re = /^([\+]*[0-9])+$/;
+        if (re.test(number)) {
+          return true;
+        }
+      }
+      return false;
+    },
+
+    /**
+     * Find needed voice rule from passed-in rules. It is possible to have
+     * different rules here, but after checking with Gecko gurus, we only
+     * use "voice rule" now. So, we only need this one.
+     *
+     * @param {Array} rules
+     * @return {Object}
+     */
+    findActiveVoiceRule: function(rules) {
+      rules = rules || [];
+      return rules.find((rule) => {
+        return (rule.active &&
+          (rule.serviceClass & conns[0].ICC_SERVICE_CLASS_VOICE) !==0);
+      });
+    }
+  };
+
+  return CallUtils;
+});