feat/COMPASS-9935 collapse field level

[paula-stacho]

External Links

🎟️

• https://jira.mongodb.org/browse/COMPASS-9935
• https://jira.mongodb.org/browse/COMPASS-9982

Description

Changes:

• in addition to the existing onNodeExpandToggle, the client can provide onFieldExpandToggle
• within the NodeField, the client can provide expanded
• whether the fields expandable is calculated internally, but the toggle is only displayed if onFieldExpandToggle is provided
• the top level toggle now has two visuals
• the top level toggle is not controlled by the client, instead it reacts to the field state and allows expanding if any fields are collapsed
• [BREAKING CHANGE]: for field-to-field edges, the client is to provide the source|targetFieldId instead of source|targetFieldIndex. the latter isn't suitable anymore because not all fields are visible

Note: Expandability depends on the existence of children more than on the direct types (for example there can be an object without children, or an array/mixed field that does have children).

TODO

• make sure the height calculation uses the filtered fields

📸 Screenshots/Screencasts

Node with collapse/expand functionality

Node without collapse/expand functionality

Top level and field level collapse behaviour

Screen.Recording.2025-11-20.at.13.52.36.mov