Digital content coediting

A system comprising:

• an edit operation module implemented by a processing device to receive an edit input specifying an edit to digital content;
• an action identifier module implemented by the processing device to assign an action identifier to the edit;
• an element identifier module implemented by the processing device to obtain an element identifier of an element of the digital content that is a subject of the edit of the element and a previous action identifier identifying a previous edit associated with the element;
• an edit region detection module implemented by the processing device to detect an edited content region of the digital content corresponding to the edit;
• and
• a candidate event generation module implemented by the processing device to generate a candidate edit event including the action identifier, the element identifier, the previous action identifier, and the edited content region.

One or more computer-readable storage media storing instruction that, responsive to execution by a processing device, causes the processing device to perform operations comprising:

• receiving an edit input specifying an edit to a digital image;
• assigning an action identifier to the edit;
• identifying an element of the digital image that corresponds to the edit;
• obtaining an element identifier of the layer and a previous action identifier identifying a previous edit associated with the element;
• detecting a portion of the layer that is a subject of the edit;
• and
• generating a candidate edit event to control coediting of the digital image, the candidate edit event including the portion, the action identifier, the element identifier, and the previous action identifier.