feat(tabs): implement browser-like tab system with detach/attach support #12474
+1,250
−388
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What this PR does
Before this PR:
After this PR:
Related to: #11460 (Feature 4 & 5)
Why we need it and why it was done in this way
This PR implements Feature 4 (Tab Detach) and Feature 5 (Tab Attach) from the v2 tab system design.
The following tradeoffs were made:
The following alternatives were considered:
TODO List
Completed
AppShellTabBar)useTabshook)detachTabcallback)isDetachedmode (hide Home Tab, close button, + button)DetachedAppShellcomponent for detached windows20260116-140606.mp4
Feature 1: Tab Detach (Drag Out to Window)
isDetachedmode for detached window UIDetachedAppShellwith URL query params initialization20260116-173507.mp4
Feature 2: Tab Attach (Drag Back to Main)
tab:attach-request/tab:attach-response)Breaking changes
None
Checklist