src/Zenith/GUI.hs

@@ -68,6 +68,7 @@ import Zenith.Utils
   , isValidString
   , padWithZero
   , getZenithPath
+  , isEmpty
   )
 
 data AppEvent
@@ -122,7 +123,9 @@ data AppEvent
   | CloseMsgAB
   | CheckValidAddress !T.Text
   | CheckValidDescrip !T.Text
+  | SaveNewABEntry
   | ShowMessage !T.Text
+
   deriving (Eq, Show)
 
 data AppModel = AppModel
@@ -855,12 +858,11 @@ buildUI wenv model = widgetTree
               ]
             ]
         , spacer
-        , hstack [
-              button "Save" (saveAddrBook
-                              (ZcashNetDB (model ^. network))
-                              (model ^. abdescrip)
-                              (model ^. abaddress)) `nodeEnabled`
+        , hstack
+            [ button "Save" SaveNewABEntry `nodeEnabled`
                  ((model ^. abAddressValid) && (model ^. abDescripValid))
+            , spacer
+            , button "Cancel" CloseNewAdrBook `nodeEnabled` True
             ]
          ]
     msgAdrBookOverlay=
@@ -945,21 +947,6 @@ generateQRCodes config = do
         Orchard -> Just $ (T.append "zcash:" . getUA . walletAddressUAddress) w
         Sprout -> Nothing
 
-saveAddrBook :: ZcashNetDB -> T.Text -> T.Text -> AppEvent
-saveAddrBook n d a = do 
-  dPath <- liftIO $ getZenithPath 
-  pool <- runNoLoggingT $ initPool $ (T.pack dPath)
-  res <-
-   liftIO $
-   saveAdrsInAdrBook pool $ 
-     AddressBook
-       n
-       d
-       a
-  case res of
-    Nothing -> return $ ShowMessage "Error while saving address book entry"
-    Just _ -> return $  ShowMessage "New address book entry saved successfully!!"
-
 handleEvent ::
      WidgetEnv AppModel AppEvent
   -> WidgetNode AppModel AppEvent
@@ -1201,12 +1188,19 @@ handleEvent wenv node model evt =
         (i < (fromIntegral (model ^. balance) / 100000000.0))
       ]
     ShowTxId tx -> [Model $ model & showId ?~ tx & modalMsg .~ Nothing]
+    -- |
+    -- | Address Book Events
+    -- |
     CheckValidAddress a -> [Model $ model & abAddressValid .~ isRecipientValid a]
     CheckValidDescrip a -> [Model $ model & abDescripValid  .~ isValidString a]
     ShowAdrBook -> [Model $ model & showAdrBook .~ True & menuPopup .~ False]
     CloseAdrBook -> [Model $ model & showAdrBook .~ False]
     NewAdrBkEntry -> [Model $ model & newAdrBkEntry .~ True & menuPopup .~ False]
-    CloseNewAdrBook -> [Model $ model & newAdrBkEntry .~ False]
+    CloseNewAdrBook -> do
+      [Model $ model & newAdrBkEntry .~ False]
+    SaveNewABEntry ->
+      [ Task $ saveAddrBook (model ^. configuration) (ZcashNetDB (model ^. network)) (model ^. abdescrip) (model ^. abaddress)
+      ]
     NotImplemented -> [Model $ model & msgAB ?~ "Function not implemented..." & menuPopup .~ False]
     CloseMsgAB -> [Model $ model & msgAB .~ Nothing & inError .~ False]
     ShowMessage a -> [Model $ model & msgAB ?~ a & menuPopup .~ False]
@@ -1297,6 +1291,36 @@ handleEvent wenv node model evt =
             Just _ -> do
               wL <- getWallets pool (model ^. network)
               return $ LoadWallets wL
+    -- |          
+    -- | Address Book -> save new entry into database
+    -- |
+    saveAddrBook :: Config -> ZcashNetDB -> T.Text -> T.Text -> IO AppEvent
+    saveAddrBook config n d a = do
+      let dbPath =  c_dbPath config
+      pool <- runNoLoggingT $ initPool dbPath
+      res <-
+       liftIO $
+       saveAdrsInAdrBook pool $
+         AddressBook
+           n
+           d
+           a
+      case res of
+        Nothing -> return $ ShowMessage "Error saving the AddressBook entry..."
+        Just _ -> loadABList config (model ^. network)
+    -- |
+    -- |
+    -- |    
+    loadABList :: Config -> ZcashNet -> IO AppEvent
+    loadABList config n = do
+      let dbPath =  c_dbPath config
+      pool <- runNoLoggingT $ initPool dbPath
+      abList <- getAdrBook pool n
+      if isEmpty abList
+        then  return $ ShowMessage "Error loading the AddressBook list..."
+        else  do
+          model & abaddressList ?~ abList
+          return $ ShowMessage "AddressBook loaded successfully!!!"
 
 scanZebra :: T.Text -> T.Text -> Int -> (AppEvent -> IO ()) -> IO ()
 scanZebra dbPath zHost zPort sendMsg = do
@@ -1463,9 +1487,7 @@ runZenithGUI config = do
                       Nothing
                       True
                       bal
-                      (if unconfBal == 0
-                         then Nothing
-                         else Just unconfBal)
+                      (if unconfBal == 0 then Nothing else Just unconfBal)
                       Orchard
                       qr
                       False
@@ -1476,9 +1498,7 @@ runZenithGUI config = do
                       Nothing
                       ""
                       ""
-                      (SaveAddress  (if not (null accList)
-                                      then Just (head accList)
-                                      else Nothing ) )
+                      (SaveAddress  (if not (null accList) then Just (head accList) else Nothing ) )
                       False
                       False
                       Nothing
@@ -1492,7 +1512,7 @@ runZenithGUI config = do
                       False
                       False
                       Nothing
-                      ""
+                      hD
                       False
                       False
                       ""
@@ -1501,7 +1521,6 @@ runZenithGUI config = do
                       False
                       abList
                       Nothing
---                      hD
               startApp model handleEvent buildUI (params hD)
         Left e -> do
           initDb dbFilePath
@@ -1547,7 +1566,7 @@ runZenithGUI config = do
                   False
                   False
                   Nothing
-                  ""
+                  hD
                   False
                   False
                   ""
@@ -1556,7 +1575,6 @@ runZenithGUI config = do
                   False
                   []
                   Nothing
---                  hD
           startApp model handleEvent buildUI (params hD)
   where
     params hd =

src/Zenith/Utils.hs

@@ -158,3 +158,7 @@ padWithZero n s
   | (length s) >= n  = s 
   | otherwise  = padWithZero n ("0" ++ s)
 
+isEmpty :: [a] -> Bool
+isEmpty [] = True
+isEmpty _  = False
+