From Management bar contextual actions:
Management bar actions should contextualize depending on the items available in the dataset and its possible actions:
- In case one element is selected, the actions to show in the management toolbar should be only the possible actions to be performed over the element at its current state. Lock / unlock example.
- In case several elements are selected, only the common actions to all of them must appear. And on actions that have two directions as (lock/unlock) both must appear if there are locked and unlocked elements in the selection.
The toolbar must be acknowledged somehow of all existing condicionants.