[Webkit-unassigned] [Bug 140615] [CSS Grid Layout] Size tracks using a list of all items sorted by span

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=140615

--- Comment #1 from Sergio Villar Senin <svillar at igalia.com> ---
(In reply to comment #0)
> The track sizing algorithm processes a list of items sorted by increasing
> span in order to size content sized columns. Our implementation instead
> processes content sized columns, meaning that an item spanning multiple
> content sized columns will be processed many times.
> 
> Apart from that we're doing extra sorts and hast table lookups because we're
> reseting the list of items after processing each track.

Actually this was already implemented in bug 135701 but it has 2 important bugs:
 1- the hash table is reset after processing each track, that means that is actually doing nothing (there are no duplicates inside the same track).
 2- we're only sorting the items inside each track, we have to sort them all (all the items in the grid spanning through content sized columns).

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