The editable flag for files is now respected by the editor, and trash files are not editable

nw/gui/doceditor.py

@@ -164,6 +164,7 @@ class GuiDocEditor(QTextEdit):
         # If we have a document open, we should reload it in case the font changed, otherwise
         # we just clear the editor entirely, which makes it read only.
         if self.theHandle is not None:
+            # We must save the current handle as clearEditor() sets it to None
             tHandle = self.theHandle
             self.clearEditor()
             self.loadText(tHandle)
@@ -194,9 +195,11 @@ class GuiDocEditor(QTextEdit):
         self._runCounter()
         self.wcTimer.start()
         self.setDocumentChanged(False)
-        self.setReadOnly(False)
         self.theHandle = tHandle
 
+        if self.nwDocument.docEditable:
+            self.setReadOnly(False)
+
         return True
 
     def saveText(self):

nw/gui/doctree.py

@@ -41,8 +41,8 @@ class GuiDocTree(QTreeWidget):
         self.theProject = theProject
 
         # Tree Settings
-        self.theMap     = None
-        self.orphRoot   = None
+        self.theMap   = None
+        self.orphRoot = None
 
         self.clearTree()
 
@@ -97,15 +97,23 @@ class GuiDocTree(QTreeWidget):
             return False
 
         if itemClass is None and pHandle is not None:
-            itemClass = self.theProject.getItem(pHandle).itemClass
+            pItem = self.theProject.getItem(pHandle)
+            if pItem is not None:
+                itemClass = pItem.itemClass
 
         if itemClass is None:
             if itemType is not None:
                 if itemType == nwItemType.FILE:
-                    self.makeAlert("Please select a location in the tree to add a document.", nwAlert.ERROR)
+                    self.makeAlert(
+                        "Please select a valid location in the tree to add a document.",
+                        nwAlert.ERROR
+                    )
                     return False
                 elif itemType == nwItemType.FOLDER:
-                    self.makeAlert("Please select a location in the tree to add a folder.", nwAlert.ERROR)
+                    self.makeAlert(
+                        "Please select a valid location in the tree to add a folder.",
+                        nwAlert.ERROR
+                    )
                     return False
             self.makeAlert("Failed to add new item.", nwAlert.BUG)
             return False
@@ -141,10 +149,6 @@ class GuiDocTree(QTreeWidget):
                 self.makeAlert("Cannot add new files or folders to the trash folder.", nwAlert.ERROR)
                 return False
 
-            if pHandle == self.orphRoot:
-                self.makeAlert("Cannot add new files or folders to the orphaned folder.", nwAlert.ERROR)
-                return False
-
             # If we're still here, add the file or folder
             if itemType == nwItemType.FILE:
                 tHandle = self.theProject.newFile("New File", itemClass, pHandle)

nw/project/document.py

@@ -25,11 +25,12 @@ class NWDoc():
 
     def __init__(self, theProject, theParent):
 
-        self.mainConf   = nw.CONFIG
-        self.theProject = theProject
-        self.theParent  = theParent
-        self.theItem    = None
-        self.docHandle  = None
+        self.mainConf    = nw.CONFIG
+        self.theProject  = theProject
+        self.theParent   = theParent
+        self.theItem     = None
+        self.docHandle   = None
+        self.docEditable = False
 
         # Internal Mapping
         self.makeAlert = self.theParent.makeAlert
@@ -37,8 +38,9 @@ class NWDoc():
         return
 
     def clearDocument(self):
-        self.theItem   = None
-        self.docHandle = None
+        self.theItem     = None
+        self.docHandle   = None
+        self.docEditable = False
         return
 
     def openDocument(self, tHandle, showStatus=True):
@@ -46,6 +48,15 @@ class NWDoc():
         self.docHandle = tHandle
         self.theItem   = self.theProject.getItem(tHandle)
 
+        if self.theItem is None:
+            self.clearDocument()
+            return None
+
+        # By default, the document is editable. Except for files in the trash folder.
+        self.docEditable = True
+        if self.theItem.parHandle == self.theProject.trashRoot:
+            self.docEditable = False
+
         docDir, docFile = self._assemblePath(self.FILE_MN)
         logger.debug("Opening document %s" % path.join(docDir,docFile))
         dataDir = path.join(self.theProject.projPath, docDir)

nw/project/project.py

@@ -478,6 +478,19 @@ class NWProject():
         logger.error("No tree item with handle %s" % str(tHandle))
         return None
 
+    def getRootItem(self, tHandle):
+        """Iterate upwards in the tree until we find the item with parent None, the root item.
+        We do this with a for loop with a maximum depth of 200 to make infinite loops impossible.
+        """
+        tItem = self.getItem(tHandle)
+        if tItem is not None:
+            for i in range(200):
+                tHandle = tItem.parHandle
+                tItem   = self.getItem(tHandle)
+                if tItem is None:
+                    return tHandle
+        return None
+
     def getProjectItems(self):
         """This function is called from the tree view when building the tree. Each item in the
         project is returned in the order saved in the project file, but first it checks that it has