[DMN Designer] CellEditorControl needs to issue a new instance per use ---------------------------------------------------------------------- Key: DROOLS-3048 URL: https://issues.redhat.com/browse/DROOLS-3048 Project: Drools Issue Type: Bug Components: DMN Editor Affects Versions: 7.12.0.Final Reporter: Michael Anstis Assignee: Michael Anstis Priority: Major Labels: drools-tools Attachments: applicationscope-vs-dependendscope.webm A {{Popover}} used to edit a cell or column header (or any other DOM-based editor for that matter) disappears following a change in the widget that causes a {{Layer.draw()}} if the grid is sufficiently wide that there is a column not visible on screen. All cells/columns that use {{CellEditorControls}} (containing, for example, the {{Popover}}) share a single instance from {{CellEditorControl}} and hence although the User makes a change in a visible column the invisible column (scrolled off screen) has its DOM resources destroyed that is the same instance as that for the visible column. See https://github.com/kiegroup/appformer/blob/master/uberfire-extensions/ube.... If a column is not in the _body_ or _floating_ columns collection its DOM resources are destroyed. I probably need to ensure different instances of {{CellEditorControl}} are created for each column/cell where we currently share the same instance. Also check for destruction of DOM elements in {{Document}} when grids/columns etc are destroyed. h3. Acceptance criteria # Create a DMN model # Add a Decision # Set its expression to a Decision Table # Add multiple Input and Output columns so that the table is wider than the visible screen space (i.e. some columns are not rendered) # Click on the header of a visible column # The Name/Data-type popup should appear # Repeat for expression type of Relation