Class for a block change event.
Optionalopt_block: Blockly.BlockThe changed block. Undefined for a blank event.
Optionalopt_element: stringOne of 'field', 'comment', 'disabled', etc.
Optionalopt_name: stringName of input or field affected, or null.
Optionalopt_oldValue: anyPrevious value of element.
Optionalopt_newValue: anyNew value of element.
The block ID for the block this event pertains to
The event group id for the group this event belongs to. Groups define events that should be treated as an single action from the user's perspective, and should be undone together.
Whether or not the event is blank (to be populated by fromJson).
Whether or not the event is a UI event.
Sets whether the event should be added to the undo stack.
Type of this event.
The workspace identifier for this event.
Fake class which should be extended to avoid inheriting static properties