From 054fdedefe623817668ee689e7eac9de3d74f540 Mon Sep 17 00:00:00 2001
From: tv <tv@shackspace.de>
Date: Wed, 7 Jan 2015 05:43:01 +0100
Subject: change search term with <M-q>

---
 TreeView.hs |  7 +++++++
 test5.hs    | 29 +++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/TreeView.hs b/TreeView.hs
index 26b04bd..218d167 100644
--- a/TreeView.hs
+++ b/TreeView.hs
@@ -6,6 +6,7 @@
 module TreeView
     ( TreeView (..)
     , getMessage
+    , getSearchTerm
     , isTVMessage
     , isTVSearchResult
     , fromSearchResults
@@ -93,6 +94,12 @@ getMessage = \case
     _ -> Nothing
 
 
+getSearchTerm :: TreeView -> Maybe String
+getSearchTerm = \case
+    TVSearch term -> Just term
+    _ -> Nothing
+
+
 isTVMessage :: TreeView -> Bool
 isTVMessage = \case
     TVMessage _ -> True
diff --git a/test5.hs b/test5.hs
index c7bb314..b72850a 100644
--- a/test5.hs
+++ b/test5.hs
@@ -237,6 +237,17 @@ keymap "\ESC[Z" = moveCursorUpToPrevUnread -- S-Tab
 keymap "\t" = moveCursorDownToNextUnread
 keymap "\DEL" = moveToParent  -- backspace
 
+keymap "\ESCq" = \q@State{..} ->
+    let parse = filter (/='\n') -- TODO proper parse
+        draft = fromMaybe "" $ getSearchTerm $ Z.label $ Z.root cursor
+    in editString q draft >>= \case
+        Left err -> return q { flashMessage = Plain err }
+        Right s' -> Notmuch.search s' >>= \case
+            Left err ->
+                return q { flashMessage = Plain err }
+            Right result ->
+                return q { cursor = Z.fromTree $ fromSearchResults (parse s') result }
+
 keymap "\ESC[11~" = \q@State{..} ->
     return q { flashMessage = Plain $ show $ treeViewId $ Z.label cursor }
 
@@ -546,6 +557,24 @@ editTags q@State{..} = case Z.label cursor of
         in fromMaybe root $ findTree p root
 
 
+editString :: State -> String -> IO (Either String String)
+editString q s =
+    withTempFile' ".string" $ \(path, h) -> do
+        hPutStr stdout "\ESC[?1049h" -- TODO geht besser
+        hPutStr stdout "\ESC[?25l" -- TODO war mal besser
+        setFileMode path 0o600
+
+        hPutStr h s
+
+        hClose h
+
+        runEditor' path q >>= \case
+            ExitFailure code ->
+                return . Left $ "error exit code = " <> show code
+            ExitSuccess ->
+                Right <$> readFile path
+
+
 runEditor :: FilePath -> State -> IO State
 runEditor path q@State{..} =
     runEditor' path q >>= \case
-- 
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