Merge pull request #348 from MetaMask/i341

Clear notifications on extension open + guard against negative sends

app/scripts/popup.js

@@ -65,12 +65,22 @@ function getCurrentDomain (cb) {
   })
 }
 
+function clearNotifications(){
+  chrome.notifications.getAll(function (object) {
+    for (let notification in object){
+      chrome.notifications.clear(notification)
+    }
+  })
+}
+
 function setupApp (err, opts) {
   if (err) {
     alert(err.stack)
     throw err
   }
   
+  clearNotifications()
+
   var container = document.getElementById('app-content')
 
   MetaMaskUi({

ui/app/app.js

@@ -355,4 +355,3 @@ App.prototype.toggleMetamaskActive = function () {
     this.props.dispatch(actions.lockMetamask(false))
   }
 }
-

ui/app/send.js

@@ -216,6 +216,11 @@ SendTransactionScreen.prototype.onSubmit = function () {
     return this.props.dispatch(actions.displayWarning(message))
   }
 
+  if (input < 0) {
+    message = 'Can not send negative amounts of ETH.'
+    return this.props.dispatch(actions.displayWarning(message))
+  }
+
   if ((!util.isValidAddress(recipient) && !txData) || (!recipient && !txData)) {
     message = 'Recipient address is invalid.'
     return this.props.dispatch(actions.displayWarning(message))
@@ -234,4 +239,3 @@ SendTransactionScreen.prototype.onSubmit = function () {
 
   this.props.dispatch(actions.signTx(txParams))
 }
-