pub trait TreeDragDestExt: 'static {
    fn drag_data_received(&self, dest: &TreePath, value: &Value) -> bool;
fn row_drop_possible(&self, dest_path: &TreePath, value: &Value) -> bool; }
Expand description

Trait containing all TreeDragDest methods.


ListStore, TreeDragDest, TreeStore

Required methods

Asks the TreeDragDest to insert a row before the path @dest, deriving the contents of the row from @value. If @dest is outside the tree so that inserting before it is impossible, false will be returned. Also, false may be returned if the new row is not created for some model-specific reason. Should robustly handle a @dest no longer found in the model!


row to drop in front of


data to drop


whether a new row was created before position @dest

Determines whether a drop is possible before the given @dest_path, at the same depth as @dest_path. i.e., can we drop the data in @value at that location. @dest_path does not have to exist; the return value will almost certainly be false if the parent of @dest_path doesn’t exist, though.


destination row


the data being dropped


true if a drop is possible before @dest_path