[jboss-jira] [JBoss JIRA] (DROOLS-3175) [DMN Designer] keyboard navigation in context grid editor

[Jozef Marko (Jira)]

Jozef Marko created DROOLS-3175:
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             Summary: [DMN Designer] keyboard navigation in context grid editor
                 Key: DROOLS-3175
                 URL: https://issues.jboss.org/browse/DROOLS-3175
             Project: Drools
          Issue Type: Enhancement
          Components: DMN Editor
    Affects Versions: 7.11.0.Final
            Reporter: Jozef Marko
            Assignee: Jozef Marko


User should be able to navigate between context grid editor cells by keyboard. We should implement standard navigation:
- Move up: *arrow up*
- Move left: *arrow left*
- Move down: *arrow down*
- Move right: *arrow right*

Corner cases we need to address:
- No cell selected 
-- -Select Top left cell if any arrow pressed?- left top cell selected by default
- Multiple cells selected
-- -Select Top left cell of current selected if any arrow pressed?- selection adjusted, no error thrown
- Selected cell on the corner, no other cells in demanded way
-- Keep selected the current cell



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