5 files changed, 51 insertions, 5 deletions
diff --git a/app/_locales/sl/messages.json b/app/_locales/sl/messages.json
index b089f3476..25bd0bcbb 100644
--- a/app/_locales/sl/messages.json
+++ b/app/_locales/sl/messages.json
@@ -181,7 +181,7 @@
     "message": "DEN je vaša šifrirana shramba v MetaMasku."
   },
   "deposit": {
-    "message": "Vplačilo"
+    "message": "Vplačaj"
   },
   "depositBTC": {
     "message": "Vplačajte vaš BTC na spodnji naslov:"
@@ -507,10 +507,10 @@
     "message": "Ni se začelo"
   },
   "oldUI": {
-    "message": "Starejši uporabniški vmesnik"
+    "message": "Star UI"
   },
   "oldUIMessage": {
-    "message": "Vrnili ste se v starejši uporabniški vmesnik. V novega se lahko vrnete z možnostjo v spustnem meniju v zgornjem desnem kotu."
+    "message": "Vrnili ste se v star uporabniški vmesnik. V novega se lahko vrnete z možnostjo v spustnem meniju v zgornjem desnem kotu."
   },
   "or": {
     "message": "ali",
@@ -759,7 +759,7 @@
     "message": "Vpišite vaše geslo"
   },
   "uiWelcome": {
-    "message": "Dobrodošli v novem uporabniškem vmesniku (Beta)"
+    "message": "Dobrodošli v nov UI (Beta)"
   },
   "uiWelcomeMessage": {
     "message": "Zdaj uporabljate novi MetaMask uporabniški vmesnik. Razglejte se, preizkusite nove funkcije, kot so pošiljanje žetonov, in nas obvestite, če imate kakšne težave."
diff --git a/app/scripts/controllers/transactions/index.js b/app/scripts/controllers/transactions/index.js
index 541f1db73..a1588cfef 100644
--- a/app/scripts/controllers/transactions/index.js
+++ b/app/scripts/controllers/transactions/index.js
@@ -112,6 +112,21 @@ class TransactionController extends EventEmitter {
   }
 
   /**
+    Check if a txMeta in the list with the same nonce has been confirmed in a block
+    if the txParams dont have a nonce will return false
+    @returns {boolean} weather the nonce has been used in a transaction confirmed in a block
+    @param {object} txMeta - the txMeta object
+  */
+  async isNonceTaken (txMeta) {
+    const { from, nonce } = txMeta.txParams
+    if ('nonce' in txMeta.txParams) {
+      const sameNonceTxList = this.txStateManager.getFilteredTxList({from, nonce, status: 'confirmed'})
+      return (sameNonceTxList.length >= 1)
+    }
+    return false
+  }
+
+  /**
   add a new unapproved transaction to the pipeline
 
   @returns {Promise<string>} the hash of the transaction after being submitted to the network
diff --git a/app/scripts/controllers/transactions/tx-state-manager.js b/app/scripts/controllers/transactions/tx-state-manager.js
index 53428c333..380214c1d 100644
--- a/app/scripts/controllers/transactions/tx-state-manager.js
+++ b/app/scripts/controllers/transactions/tx-state-manager.js
@@ -262,7 +262,7 @@ class TransactionStateManager extends EventEmitter {
   */
   getTxsByMetaData (key, value, txList = this.getTxList()) {
     return txList.filter((txMeta) => {
-      if (txMeta.txParams[key]) {
+      if (key in txMeta.txParams) {
         return txMeta.txParams[key] === value
       } else {
         return txMeta[key] === value
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index c4a73d8ea..a90acb4d5 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -382,6 +382,7 @@ module.exports = class MetamaskController extends EventEmitter {
       updateTransaction: nodeify(txController.updateTransaction, txController),
       updateAndApproveTransaction: nodeify(txController.updateAndApproveTransaction, txController),
       retryTransaction: nodeify(this.retryTransaction, this),
+      isNonceTaken: nodeify(txController.isNonceTaken, txController),
 
       // messageManager
       signMessage: nodeify(this.signMessage, this),
diff --git a/test/unit/tx-controller-test.js b/test/unit/tx-controller-test.js
index 0b5c7226a..ddd921652 100644
--- a/test/unit/tx-controller-test.js
+++ b/test/unit/tx-controller-test.js
@@ -40,6 +40,36 @@ describe('Transaction Controller', function () {
     txController.nonceTracker.getNonceLock = () => Promise.resolve({ nextNonce: 0, releaseLock: noop })
   })
 
+  describe('#isNonceTaken', function () {
+    it('should return true', function (done) {
+      txController.txStateManager._saveTxList([
+        { id: 1, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {nonce: 0, from: '0x8ACCE2391C0d510a6C5E5D8f819A678F79B7E675'} },
+        { id: 2, status: 'confirmed', metamaskNetworkId: currentNetworkId, txParams: {nonce: 0, from: '0x8ACCE2391C0d510a6C5E5D8f819A678F79B7E675'} },
+        { id: 3, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {nonce: 0, from: '0x8ACCE2391C0d510a6C5E5D8f819A678F79B7E675'} },
+      ])
+      txController.isNonceTaken({txParams: {nonce:0, from:'0x8ACCE2391C0d510a6C5E5D8f819A678F79B7E675'}})
+      .then((isNonceTaken) => {
+        assert(isNonceTaken)
+        done()
+      }).catch(done)
+
+    })
+    it('should return false', function (done) {
+      txController.txStateManager._saveTxList([
+        { id: 1, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {nonce: 0, from: '0x8ACCE2391C0d510a6C5E5D8f819A678F79B7E675'} },
+        { id: 2, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {nonce: 0, from: '0x8ACCE2391C0d510a6C5E5D8f819A678F79B7E675'} },
+        { id: 3, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {nonce: 0, from: '0x8ACCE2391C0d510a6C5E5D8f819A678F79B7E675'} },
+      ])
+
+      txController.isNonceTaken({txParams: {nonce:0, from:'0x8ACCE2391C0d510a6C5E5D8f819A678F79B7E675'}})
+      .then((isNonceTaken) => {
+        assert(!isNonceTaken)
+        done()
+      }).catch(done)
+
+    })
+  })
+
   describe('#getState', function () {
     it('should return a state object with the right keys and datat types', function () {
       const exposedState = txController.getState()