backup and export working with mnemonics

src/js/controllers/export.js

@@ -0,0 +1,86 @@
+'use strict';
+
+angular.module('copayApp.controllers').controller('backupController',
+  function($rootScope, $scope, $timeout, backupService, profileService, isMobile, isCordova, notification, go, gettext, gettextCatalog) {
+    this.isSafari = isMobile.Safari();
+    this.isCordova = isCordova;
+    this.error = null;
+    this.success = null;
+
+    var fc = profileService.focusedClient;
+    this.isEncrypted = fc.isPrivKeyEncrypted();
+
+    this.downloadWalletBackup = function() {
+      var self = this;
+      var opts = {
+        noSign: $scope.noSign,
+      };
+      backupService.walletDownload(this.password, opts, function(err) {
+        if (err) {
+          self.error = true;
+          return ;
+        }
+        $rootScope.$emit('Local/BackupDone');
+        notification.success(gettext('Backup created'), gettext('Encrypted backup file saved'));
+        go.walletHome();
+      });
+    };
+
+    this.getBackup = function() {
+      var opts = {
+        noSign: $scope.noSign,
+      };
+
+      var ew = backupService.walletExport(this.password, opts);
+      if (!ew) {
+        this.error = true;
+      } else {
+        this.error = false;
+      }
+      return ew;
+    };
+
+    this.viewWalletBackup = function() {
+      var self = this;
+      $timeout(function() {
+        var ew = self.getBackup();
+        if (!ew) return;
+        self.backupWalletPlainText = ew;
+        $rootScope.$emit('Local/BackupDone');
+      }, 100);
+    };
+
+    this.copyWalletBackup = function() {
+      var ew = this.getBackup();
+      if (!ew) return;
+      window.cordova.plugins.clipboard.copy(ew);
+      window.plugins.toast.showShortCenter(gettextCatalog.getString('Copied to clipboard'));
+      $rootScope.$emit('Local/BackupDone');
+    };
+
+    this.sendWalletBackup = function() {
+      var fc = profileService.focusedClient;
+      if (isMobile.Android() || isMobile.Windows()) {
+        window.ignoreMobilePause = true;
+      }
+      window.plugins.toast.showShortCenter(gettextCatalog.getString('Preparing backup...'));
+      var name = (fc.credentials.walletName || fc.credentials.walletId);
+      if (fc.alias) {
+        name = fc.alias + ' [' + name + ']';
+      }
+      var ew = this.getBackup();
+      if (!ew) return;
+
+      if( $scope.noSign) 
+        name = name + '(No Private Key)';
+
+      var properties = {
+        subject: 'Copay Wallet Backup: ' + name,
+        body: 'Here is the encrypted backup of the wallet ' + name + ': \n\n' + ew + '\n\n To import this backup, copy all text between {...}, including the symbols {}',
+        isHtml: false
+      };
+      $rootScope.$emit('Local/BackupDone');
+      window.plugin.email.open(properties);
+    };
+
+  });