diff --git a/nw/core/project.py b/nw/core/project.py
index 1bf53151..b077c53d 100644
--- a/nw/core/project.py
+++ b/nw/core/project.py
@@ -781,6 +781,10 @@ class NWProject():
     def zipIt(self, doNotify):
         """Create a zip file of the entire project.
         """
+        if not self.theParent.hasProject:
+            logger.error("No project open")
+            return False
+
         logger.info("Backing up project")
         self.theParent.setStatus("Backing up project ...")
 
diff --git a/nw/gui/doceditor.py b/nw/gui/doceditor.py
index 005c6ffa..8759d86e 100644
--- a/nw/gui/doceditor.py
+++ b/nw/gui/doceditor.py
@@ -620,9 +620,10 @@ class GuiDocEditor(QTextEdit):
         this class when calling these actions from other classes.
         """
         logger.verbose("Requesting action: %s" % theAction.name)
-        if not self.theParent.hasProject:
-            logger.error("No project open")
+        if self.theHandle is None:
+            logger.error("No document open")
             return False
+
         self._allowAutoReplace(False)
         if theAction == nwDocAction.UNDO:
             self.undo()
@@ -678,7 +679,9 @@ class GuiDocEditor(QTextEdit):
             logger.debug("Unknown or unsupported document action %s" % str(theAction))
             self._allowAutoReplace(True)
             return False
+
         self._allowAutoReplace(True)
+
         return True
 
     def isEmpty(self):
@@ -690,16 +693,20 @@ class GuiDocEditor(QTextEdit):
         """Tell the user where on the file system the file in the editor
         is saved.
         """
-        if self.theHandle is not None:
-            msgBox = QMessageBox()
-            msgBox.information(self, "File Location", (
-                "File details for the currently open file<br>"
-                "Handle: {handle:s}<br>"
-                "Location: {fileLoc:s}"
-            ).format(
-                handle  = self.theHandle,
-                fileLoc = str(self.nwDocument.getFileLocation())
-            ))
+        if self.theHandle is None:
+            logger.error("No document open")
+            return False
+
+        msgBox = QMessageBox()
+        msgBox.information(self, "File Location", (
+            "File details for the currently open file<br>"
+            "Handle: {handle:s}<br>"
+            "Location: {fileLoc:s}"
+        ).format(
+            handle  = self.theHandle,
+            fileLoc = str(self.nwDocument.getFileLocation())
+        ))
+
         return
 
     def insertText(self, theInsert):
diff --git a/nw/gui/projtree.py b/nw/gui/projtree.py
index f0d0bca9..4116a863 100644
--- a/nw/gui/projtree.py
+++ b/nw/gui/projtree.py
@@ -163,6 +163,7 @@ class GuiProjectTree(QTreeWidget):
         nHandle = None
 
         if not self.theParent.hasProject:
+            logger.error("No project open")
             return False
 
         # The item needs to be assigned an item class, so one must be
@@ -281,6 +282,10 @@ class GuiProjectTree(QTreeWidget):
         """Move an item up or down in the tree, but only if the treeView
         has focus. This also applies when the menu is used.
         """
+        if not self.theParent.hasProject:
+            logger.error("No project open")
+            return False
+
         hasFocus = qApp.focusWidget() == self or not self.mainConf.showGUI
         if hasFocus and self.theParent.hasProject:
 
@@ -364,6 +369,10 @@ class GuiProjectTree(QTreeWidget):
         function only asks for confirmation once, and calls the regular
         deleteItem function for each document in the Trash folder.
         """
+        if not self.theParent.hasProject:
+            logger.error("No project open")
+            return False
+
         trashHandle = self.theProject.projTree.trashRoot()
 
         logger.debug("Emptying Trash folder")
@@ -409,6 +418,10 @@ class GuiProjectTree(QTreeWidget):
         delete the files on disk. Folders are deleted if they're empty only,
         and the deletion is always permanent.
         """
+        if not self.theParent.hasProject:
+            logger.error("No project open")
+            return False
+
         if tHandle is None:
             tHandle = self.getSelectedHandle()
 
diff --git a/nw/guimain.py b/nw/guimain.py
index 574551c4..bfca4255 100644
--- a/nw/guimain.py
+++ b/nw/guimain.py
@@ -1053,6 +1053,7 @@ class GuiMain(QMainWindow):
         """
         if self.docEditor.theHandle is None:
             logger.error("No document open, so not activating Focus Mode")
+            self.mainMenu.aFocusMode.setChecked(self.isFocusMode)
             return False
 
         self.isFocusMode = not self.isFocusMode