[#179 state:fixed] Added multiple-selection to the folder selection dialog and thus added the ability to remove multiple folders at once.

core/app.py

@@ -368,9 +368,11 @@ class DupeGuru(RegistrableApplication, Broadcaster):
     def purge_ignore_list(self):
         self.scanner.ignore_list.Filter(lambda f,s:op.exists(f) and op.exists(s))
     
-    def remove_directory(self,index):
+    def remove_directories(self, indexes):
         try:
-            del self.directories[index]
+            indexes = sorted(indexes, reverse=True)
+            for index in indexes:
+                del self.directories[index]
             self.notify('directories_changed')
         except IndexError:
             pass

core/gui/directory_tree.py

@@ -77,15 +77,20 @@ class DirectoryTree(GUIObject, Tree):
         self.app.add_directory(path)
     
     def remove_selected(self):
-        selected_node = self.selected_node
-        if selected_node is None:
+        selected_paths = self.selected_paths
+        if not selected_paths:
             return
-        if selected_node.parent is self and selected_node.state != DirectoryState.Excluded:
-            root_index = self.selected_path[0]
-            self.app.remove_directory(root_index)
+        to_delete = [path[0] for path in selected_paths if len(path) == 1]
+        if to_delete:
+            self.app.remove_directories(to_delete)
         else:
-            newstate = DirectoryState.Normal if selected_node.state == DirectoryState.Excluded else DirectoryState.Excluded
-            selected_node.state = newstate
+            # All selected nodes or on second-or-more level, exclude them.
+            nodes = self.selected_nodes
+            newstate = DirectoryState.Excluded
+            if all(node.state == DirectoryState.Excluded for node in nodes):
+                newstate = DirectoryState.Normal
+            for node in nodes:
+                node.state = newstate
     
     def update_all_states(self):
         for node in self: