FA-36469 / Tab interfaces / Member archive
Strip anchor resize: resize scroll delta · case 04
The tab workspace reports an incorrect resize scroll delta.
Case contract
When tab widths change, keep the anchored tab at the same viewport coordinate using sums of preceding widths, then clamp to the new content range.
Why this case matters
Offline tab/panel workspace behavior; no browser or desktop framework is emulated.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| workspace regression 1 | [0, 0, -400, -40, 600, 400] | [0, 0, -400, 0, 600, 400] | Failed |
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