dev: ui: lens: Add classy lens instances for UIOpts and UIState.

hledger-ui/Hledger/UI/UIOptions.hs

@@ -103,3 +103,21 @@ getHledgerUIOpts = do
   let args' = replaceNumericFlags args
   let cmdargopts = either usageError id $ process uimode args'
   rawOptsToUIOpts cmdargopts
+
+instance HasCliOpts UIOpts where
+    cliOpts f uiopts = (\x -> uiopts{cliopts_=x}) <$> f (cliopts_ uiopts)
+
+instance HasInputOpts UIOpts where
+    inputOpts = cliOpts.inputOpts
+
+instance HasBalancingOpts UIOpts where
+    balancingOpts = cliOpts.balancingOpts
+
+instance HasReportSpec UIOpts where
+    reportSpec = cliOpts.reportSpec
+
+instance HasReportOptsNoUpdate UIOpts where
+    reportOptsNoUpdate = cliOpts.reportOptsNoUpdate
+
+instance HasReportOpts UIOpts where
+    reportOpts = cliOpts.reportOpts

hledger-ui/Hledger/UI/UITypes.hs

@@ -48,6 +48,7 @@ import Text.Show.Functions ()
   -- import the Show instance for functions. Warning, this also re-exports it
 
 import Hledger
+import Hledger.Cli (HasCliOpts(..))
 import Hledger.UI.UIOptions
 
 -- | hledger-ui's application state. This holds one or more stateful screens.
@@ -160,7 +161,24 @@ type NumberedTransaction = (Integer, Transaction)
 --    mempty        = list "" V.empty 1  -- XXX problem in 0.7, every list requires a unique Name
 --    mappend l1 l2 = l1 & listElementsL .~ (l1^.listElementsL <> l2^.listElementsL)
 
-concat <$> mapM makeLenses [
-   ''Screen
-  ]
+makeLenses ''Screen
 
+uioptslens f ui = (\x -> ui{aopts=x}) <$> f (aopts ui)
+
+instance HasCliOpts UIState where
+    cliOpts = uioptslens.cliOpts
+
+instance HasInputOpts UIState where
+    inputOpts = uioptslens.inputOpts
+
+instance HasBalancingOpts UIState where
+    balancingOpts = uioptslens.balancingOpts
+
+instance HasReportSpec UIState where
+    reportSpec = uioptslens.reportSpec
+
+instance HasReportOptsNoUpdate UIState where
+    reportOptsNoUpdate = uioptslens.reportOptsNoUpdate
+
+instance HasReportOpts UIState where
+    reportOpts = uioptslens.reportOpts