def __init__(self, listview, drag_and_drop=True):
self._listview = listview
MultiDragDropTreeView().attach(self._listview)
self._model = DatabasesListViewModel()
self._sorted_model = ListViewModel.Sorted(self._model)
self._listview.set_model(self._sorted_model)
# enable drag and drop
if drag_and_drop:
self._listview.enable_model_drag_source(self.DRAG_BUTTON_MASK, self.DRAG_TARGETS, self.DRAG_ACTION)
self._listview.enable_model_drag_dest(self.DRAG_TARGETS, self.DRAG_ACTION)
class DatabasesViewModel:
DRAG_BUTTON_MASK = Gdk.ModifierType.BUTTON1_MASK
DRAG_TARGETS = [('text/plain', 0, 0)]
DRAG_ACTION = Gdk.DragAction.COPY
def __init__(self, listview, drag_and_drop=True):
self._listview = listview
MultiDragDropTreeView().attach(self._listview)
self._model = DatabasesListViewModel()
self._sorted_model = ListViewModel.Sorted(self._model)
self._listview.set_model(self._sorted_model)
# enable drag and drop
if drag_and_drop:
self._listview.enable_model_drag_source(self.DRAG_BUTTON_MASK, self.DRAG_TARGETS, self.DRAG_ACTION)
self._listview.enable_model_drag_dest(self.DRAG_TARGETS, self.DRAG_ACTION)
@property
@GtkHelper.invoke_func_sync
def selected(self):
selected = []
(_, path_list) = self._listview.get_selection().get_selected_rows()
if path_list and len(path_list):
for path in path_list:
db = self._model[path]
selected.append(db)
return selected
@GtkHelper.invoke_func
def append(self, db):
self._model.append(db)
@GtkHelper.invoke_func
def remove(self, db_name):
for index, db in enumerate(self._model.rows):
if db_name == db.db_name:
itr = self._model.get_iter(index)
self._model.remove(itr)
@GtkHelper.invoke_func
def update(self, databases):
old_databases = {}
new_databases = []
itr = self._model.get_iter_first()
while itr is not None:
db = self._model[itr]
old_databases[db.db_name] = self._model.get_path(itr)
itr = self._model.iter_next(itr)
for db in databases:
i = old_databases.pop(db.db_name, None)
if i is not None:
self._model[i] = db
else:
new_databases.append(db)
deleted_database_paths = [path for path in old_databases.values()]
for path in reversed(deleted_database_paths):
itr = self._model.get_iter(path)
self._model.remove(itr)
for db in new_databases:
self._model.append(db)
@GtkHelper.invoke_func
def clear(self):
self._model.clear()