Update max amount behaviour to meet new specs.

1 files changed, 9 insertions, 0 deletions

diff --git a/ui/app/reducers/metamask.js b/ui/app/reducers/metamask.js
index fb53bbaef..98207f23b 100644
--- a/ui/app/reducers/metamask.js
+++ b/ui/app/reducers/metamask.js
@@ -33,6 +33,7 @@ function reduceMetamask (state, action) {
       amount: '0x0',
       memo: '',
       errors: {},
+      maxModeOn: false,
       editingTransactionId: null,
     },
     coinOptions: {},
@@ -258,6 +259,14 @@ function reduceMetamask (state, action) {
         },
       })
 
+    case actions.UPDATE_MAX_MODE:
+      return extend(metamaskState, {
+        send: {
+          ...metamaskState.send,
+          maxModeOn: action.value,
+        },
+      })
+
     case actions.UPDATE_SEND:
       return extend(metamaskState, {
         send: {