[jboss-jira] [JBoss JIRA] (DROOLS-3048) [DMN Designer] CellEditorControl needs to issue a new instance per use

[Michael Anstis (JIRA)]

    [ https://issues.jboss.org/browse/DROOLS-3048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13639549#comment-13639549 ] 

Michael Anstis commented on DROOLS-3048:
----------------------------------------

Related to but not caused by.

> [DMN Designer] CellEditorControl needs to issue a new instance per use
> ----------------------------------------------------------------------
>
>                 Key: DROOLS-3048
>                 URL: https://issues.jboss.org/browse/DROOLS-3048
>             Project: Drools
>          Issue Type: Bug
>          Components: DMN Editor
>    Affects Versions: 7.12.0.Final
>            Reporter: Michael Anstis
>            Assignee: Michael Anstis
>            Priority: Critical
>
> 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/uberfire-wires/uberfire-wires-core/uberfire-wires-core-grids/src/main/java/org/uberfire/ext/wires/core/grids/client/widget/grid/impl/BaseGridWidget.java#L341. 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.



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