Collapse adds an automatic closing behavior

[ZhangChengLin]

Prerequisites

• I have searched for duplicate or closed feature requests
• I have read the contributing guidelines

Proposal

Collapse Is it possible to add a behavior in the drop-down menu, the automatic closing behavior of the drop-down menu?

Motivation and context

At some point, when using the Collapse component, an auxiliary convenience behavior is needed. That is, the client user may need to let Collapse automatically close after clicking to expand Collapse, or after expanding Collapse, click outside Collapse. When the time comes, Collapse needs to be able to shrink in time instead of always being in an expanded state.

Vice versa, this is slightly different from the drop-down menu. The Collapse component can exist in 2 states for users to use.

Although you can use multiple-toggles-and-targets to cleverly implement similar functions, it is not as straightforward as having similar auxiliary behaviors directly, because those require clever and precise design and calculation.

[amrahs02]

I'm interested in exploring this issue further and would like to take a chance on implementing it.