disable keyboard shortcuts when text editing

src/app/MetaBrush/GTK/Util.hs

@@ -91,11 +91,14 @@ infixl 1 >>?=
 -- controllers attached to it, as we don't want the label to participate in
 -- drag-and-drop operations, especially because having it participate in
 -- drag-and-drop operations triggers segfaults due to a GTK bug.
-editableLabelNew :: IO GTK.EditableLabel
-editableLabelNew = do
-  label <- GTK.editableLabelNew " "
+editableLabelNew :: Text -> IO GTK.EditableLabel
+editableLabelNew txt = do
+  label <- GTK.editableLabelNew txt
   widget <- GTK.toWidget label
   removeControllers widget
+  -- Make the label not editable to start with,
+  -- because we want it to be editable on double-clicks not single clicks.
+  GTK.editableSetEditable label False
   return label
 
   where

src/app/MetaBrush/UI/FileBar.hs

@@ -13,7 +13,7 @@ module MetaBrush.UI.FileBar
 import Control.Monad
   ( join, void, when )
 import Data.Foldable
-  ( sequenceA_ )
+  ( sequenceA_, traverse_ )
 import Data.Traversable
   ( for )
 
@@ -77,7 +77,7 @@ import MetaBrush.UI.Viewport
 import MetaBrush.Unique
   ( Unique, freshUnique, uniqueText )
 import MetaBrush.GTK.Util
-  ( widgetAddClass, widgetAddClasses )
+  ( editableLabelNew, widgetAddClass, widgetAddClasses )
 
 --------------------------------------------------------------------------------
 
@@ -103,8 +103,7 @@ newFileTab
           newDocUniq <- STM.atomically $ runReaderT freshUnique uniqueSupply
           pure ( newDocUniq, newHistory $ emptyDocument ( "Untitled " <> uniqueText newDocUniq ) )
 
-    pgLabel <- GTK.editableLabelNew ( documentName $ documentMetadata $ present thisTabDocHist )
-    GTK.editableSetEditable pgLabel False
+    pgLabel <- editableLabelNew ( documentName $ documentMetadata $ present thisTabDocHist )
 
     -- Connect a signal for editing the document name.
     --
@@ -114,6 +113,9 @@ newFileTab
       hasFocus <- GTK.widgetHasFocus pgLabel
       when hasFocus do
         newDocName <- GTK.editableGetText pgLabel
+        traverse_ ( `GIO.setSimpleActionEnabled` True ) menuActions
+          -- NB: 'updateUIAction' below will properly re-disable 'undo'
+          -- and 'redo' if there is nothing to undo or redo.
         uiUpdate <-
           STM.atomically $ do
             STM.modifyTVar' openDocumentsTVar
@@ -180,6 +182,8 @@ newFileTab
         1 -> do
           handleAction uiElts vars ( SwitchTo thisTabDocUnique )
           when ( nbClicks > 1 ) do
+            -- Disable all accelerators when doing text entry.
+            traverse_ ( `GIO.setSimpleActionEnabled` False ) menuActions
             GTK.editableSetEditable pgLabel True
             GTK.editableLabelStartEditing pgLabel
             void $ GTK.widgetGrabFocus pgLabel

src/app/MetaBrush/UI/StrokeTreeView.hs

@@ -22,9 +22,9 @@ module MetaBrush.UI.StrokeTreeView
 import Control.Arrow
   ( second )
 import Control.Monad
-  ( void )
+  ( void, when )
 import Data.Foldable
-  ( for_ )
+  ( for_, traverse_ )
 import Data.List
   ( elemIndex )
 import qualified Data.List.NonEmpty as NE
@@ -347,7 +347,7 @@ newLayerViewWidget = do
   contentBox <- GTK.boxNew GTK.OrientationHorizontal 0
   GTK.treeExpanderSetChild expander ( Just contentBox )
 
-  itemLabel <- editableLabelNew
+  itemLabel <- editableLabelNew " "
   GTK.boxAppend contentBox itemLabel
 
   visibleButton <- GTK.buttonNew
@@ -537,22 +537,42 @@ newLayerView uiElts@( UIElements { window, colours } ) vars = mdo
         -- EditableLabel --
         -------------------
 
+        labelClicks <- GTK.gestureClickNew
+
         -- Connect a signal for editing the layer name.
         --
         -- NB: we don't use the 'onEditableChanged' signal, as that updates
         -- after every key stroke.
         void $ GI.after label ( GI.PropertyNotify #hasFocus ) $ \ _ -> do
-          newText <- GTK.editableGetText label
-          layer <- getLayerData listItem
-          modifyingCurrentDocument uiElts vars \ doc -> do
-            let doc' =
-                 over ( field' @"documentMetadata" . field' @"layerMetadata"
-                      . field' @"layerNames"
-                      )
-                    ( Map.insert ( layerUnique layer ) newText )
-                    doc
-            return $
-              UpdateDoc $ UpdateDocumentTo doc' TrivialDiff
+          hasFocus <- GTK.widgetHasFocus label
+          when hasFocus do
+            newText <- GTK.editableGetText label
+            layer <- getLayerData listItem
+            GTK.editableSetEditable label False
+            traverse_ ( `GIO.setSimpleActionEnabled` True ) ( menuActions uiElts )
+              -- NB: 'modifyingCurrentDocument' below will properly re-disable
+              -- 'undo' and 'redo' if there is nothing to undo or redo.
+            modifyingCurrentDocument uiElts vars \ doc -> do
+              let doc' =
+                   over ( field' @"documentMetadata" . field' @"layerMetadata"
+                        . field' @"layerNames"
+                        )
+                      ( Map.insert ( layerUnique layer ) newText )
+                      doc
+              return $
+                UpdateDoc ( UpdateDocumentTo doc' TrivialDiff )
+
+        void $ GTK.onGestureClickReleased labelClicks $ \ nbClicks _x _y -> do
+          button <- GTK.gestureSingleGetCurrentButton ?self
+          case button of
+            1 ->
+              when ( nbClicks > 1 ) do
+                -- Disable all accelerators when doing text entry.
+                traverse_ ( `GIO.setSimpleActionEnabled` False ) ( menuActions uiElts )
+                GTK.editableSetEditable label True
+                GTK.editableLabelStartEditing label
+                void $ GTK.widgetGrabFocus label
+            _ -> return ()
 
         ----------------
         -- DragSource --
@@ -823,6 +843,7 @@ newLayerView uiElts@( UIElements { window, colours } ) vars = mdo
         void $ GTK.onDropTargetLeave dropTarget $ do
           dropTargetCleanup
 
+        GTK.widgetAddController label    labelClicks
         GTK.widgetAddController expander dragSource
         GTK.widgetAddController expander dropTarget
         GTK.widgetAddController expander click