new version available

public/views/walletHome.html

@@ -134,6 +134,10 @@
         </div>
       </div>
 
+      <div class="release size-12" ng-show="newRelease && !index.isSearching" ng-click="$root.openExternalLink('https://github.com/bitpay/copay/releases/latest')">
+        <span>{{newRelease}}</span><i class="icon-arrow-right3 right size-18"></i>
+      </div>
+
       <div class="oh pr" ng-if="index.txps[0]" ng-show="!index.isSearching">
         <h4 ng-show="index.requiresMultipleSignatures" class="title m0" translate>Payment Proposals</h4>
         <h4 ng-show="!index.requiresMultipleSignatures" class="title m0" translate>Unsent transactions</h4>

src/css/main.css

@@ -596,6 +596,26 @@ ul.manage li {
   padding-top: 0 !important;
 }
 
+.release {
+   cursor: pointer;
+   cursor: hand;
+   background-color: #E9E9EC;
+   margin-top: -30px;
+   margin-bottom: 5px;
+   padding-top: 30px;
+   padding-bottom: 20px;
+   text-align: center;
+   text-color: #444;
+ }
+
+ .release span {
+   margin-left: 15px;
+ }
+
+ .release i {
+   margin-right: 15px;
+ }
+
 .tab-bar h1, .tab-bar h2, .tab-bar h3, .tab-bar h4, .tab-bar h5, .tab-bar h6 {
   line-height: 2.7rem;
 }

src/js/controllers/index.js

@@ -1,6 +1,6 @@
 'use strict';
 
-angular.module('copayApp.controllers').controller('indexController', function($rootScope, $scope, $log, $filter, $timeout, bwcService, lodash, go, profileService, configService, isCordova, rateService, storageService, addressService, gettext, gettextCatalog, amMoment, nodeWebkit, addonManager, isChromeApp, bwsError, txFormatService, uxLanguage, $state, glideraService, isMobile, addressbookService) {
+angular.module('copayApp.controllers').controller('indexController', function($rootScope, $scope, $log, $filter, $timeout, latestReleaseService, bwcService, pushNotificationsService, lodash, go, profileService, configService, isCordova, rateService, storageService, addressService, gettext, gettextCatalog, amMoment, nodeWebkit, addonManager, isChromeApp, bwsError, txFormatService, uxLanguage, $state, glideraService, isMobile, addressbookService) {
   var self = this;
   var SOFT_CONFIRMATION_LIMIT = 12;
   var errors = bwcService.getErrors();
@@ -46,6 +46,18 @@ angular.module('copayApp.controllers').controller('indexController', function($r
   ret.tab = 'walletHome';
   var vanillaScope = ret;
 
+  if (nodeWebkit.isDefined()) {
+    latestReleaseService.checkLatestRelease(function(err, newRelease) {
+      if (err) {
+        $log.warn(err);
+        return;
+      }
+
+      if (newRelease)
+        $scope.newRelease = gettext('There is a new version of Copay. Please update');
+    });
+  }
+
   function strip(number) {
     return (parseFloat(number.toPrecision(12)));
   };

src/js/services/configService.js

@@ -42,6 +42,10 @@ angular.module('copayApp.services').factory('configService', function(storageSer
       url: 'https://insight.bitpay.com:443/api/rates',
     },
 
+    release: {
+      url: 'https://api.github.com/repos/bitpay/copay/releases/latest'
+    },
+
     pushNotifications: {
       enabled: true,
       config: {

src/js/services/latestReleaseService.js

@@ -0,0 +1,63 @@
+'use strict';
+angular.module('copayApp.services')
+  .factory('latestReleaseService', function latestReleaseServiceFactory($log, $http, configService, gettext, nodeWebkit) {
+
+    var root = {};
+
+    root.checkLatestRelease = function(cb) {
+      var releaseURL = configService.getDefaults().release.url;
+
+      requestLatestRelease(releaseURL, function(err, release) {
+        if (err) return cb(err);
+        var currentVersion = window.version;
+        var latestVersion = release.data.tag_name;
+
+        if (!verifyTagFormat(currentVersion))
+          return cb('Cannot verify the format of version tag: ' + currentVersion);
+        if (!verifyTagFormat(latestVersion))
+          return cb('Cannot verify the format of latest release tag: ' + latestVersion);
+
+        var current = formatTagNumber(currentVersion);
+        var latest = formatTagNumber(latestVersion);
+
+        if (latest.major < current.major || (latest.major == current.major && latest.minor <= current.minor))
+          return cb(null, false);
+
+        $log.debug('A new version of Copay is available: ' + latestVersion);
+        return cb(null, true);
+      });
+
+      function verifyTagFormat(tag) {
+        var regex = /^v?\d+\.\d+\.\d+$/i;
+        return regex.exec(tag);
+      };
+
+      function formatTagNumber(tag) {
+        var formattedNumber = tag.replace(/^v/i, '').split('.');
+        return {
+          major: +formattedNumber[0],
+          minor: +formattedNumber[1],
+          patch: +formattedNumber[2]
+        };
+      };
+    };
+
+    function requestLatestRelease(releaseURL, cb) {
+      $log.debug('Retrieving latest relsease information...');
+
+      var request = {
+        url: releaseURL,
+        method: 'GET',
+        json: true
+      };
+
+      $http(request).then(function(release) {
+        $log.debug('Latest release: ' + release.data.name);
+        return cb(null, release);
+      }, function(err) {
+        return cb('Cannot get the release information: ' + err);
+      });
+    };
+
+    return root;
+  });