fix(web-components): keep popover open after drag outside

[sylvesterkaczmarek]

Summary of the changes

Prevent IcPopoverMenu from closing when a pointer interaction begins inside the menu and is released outside it.

The document-level click handler now records where the corresponding mouse interaction started. A normal click outside still closes the popover, while a drag or text-selection gesture that starts inside does not dismiss the menu or activate an item.

A Cypress regression covers the drag-outside interaction.

Related issue

Closes #4476

[GCHQ-Developer-299]

Hi @sylvesterkaczmarek thank you for your recent contributions, however we have limited capacity to review them. Please refrain from contributing further until your existing PRs have been resolved

[sylvesterkaczmarek]

@GCHQ-Developer-299 Thanks for the heads-up, completely understood. I’ll pause any new contributions until the current PRs are resolved.

I’ve only tidied this existing PR in the meantime: it’s now rebased on the current develop, has one commit per scope, and the Cypress regression explicitly checks that a drag outside keeps the popover open without activating an item, while a normal outside click still closes it.

Happy to address any review feedback when convenient, and no rush from my side.

[GCHQ-Developer-530]

Please would you be able to add this test to the IcPopoverMenu.cy.tsx file instead of in its own test file?

[GCHQ-Developer-530]

It also seems to be failing this test if you could take a look into fixing it when you move it over?

[sylvesterkaczmarek]

Thanks for flagging this. I've replaced the failing Cypress interaction with a deterministic event sequence, addressed the destructuring comment, and cleaned the branch back to two scoped commits. The new Actions runs are now waiting for maintainer approval.

[GCHQ-Developer-299]

@sylvesterkaczmarek further to my previous comment: I have bulk closed a number of your recent pull requests since you did not refrain from opening more. If you open another PR before we have resolved some of your existing pull requests I will block you from the UI Kit and Design System repositories.

Whether you're an AI Agent or partly human operated, this torrent of contributions is unmanageable.

[GCHQ-Developer-530]

Please rebase this branch

[sylvesterkaczmarek]

Please rebase this branch

@GCHQ-Developer-530 Rebased onto current develop. I also moved the drag-outside regression into IcPopoverMenu.cy.tsx as requested and cleaned the branch back to two scoped commits. Thanks a lot.

[Copilot]

Pull request overview

This PR updates IcPopoverMenu to avoid dismissing the menu when a mouse interaction starts inside the popover menu and ends outside it (e.g., drag/text-selection), and adds a Cypress regression test to cover that scenario.

Changes:

• Track whether the current interaction started inside the popover menu and only close on outside click when it both starts and ends outside.
• Add a Cypress regression test for “drag starts inside, releases outside” to ensure the menu stays open and no item activates.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
packages/web-components/src/components/ic-popover-menu/ic-popover-menu.tsx	Adds document mousedown tracking to distinguish outside clicks vs. drag-outside interactions before deciding to close.
packages/react/src/component-tests/IcPopoverMenu/IcPopoverMenu.cy.tsx	Adds Cypress regression coverage for drag-outside behavior and validates no item activation.

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