David Baron :dbaron: Reporter
	Description • 18 years ago

I think ::first-letter handling should happen during frame construction, not reflow.  Computing what is the first letter can happen at frame construction time, and I think doing it there would be significantly simpler than the way we currently do it, during reflow.  It would also probably fix some :first-letter-related regressions from the reflow branch.

Fixing this would both reduce the cost of reflow and (I suspect) simplify the code involved.

See also bug 365130, about bidi reordering.

	Robert O'Callahan (:roc) (email my personal email if necessary)
	Comment 1 • 18 years ago

::first-letter can depend on the character data. Can we arrange for a character data change to trigger frame reconstruction?

E.g. I'm thinking of something like

div::first-letter { font-size:200%; }

<div>F<span>Lood</span></div>

where the F changes to " (a double-quote).

	Boris Zbarsky [:bzbarsky]
	Comment 2 • 18 years ago

Wouldn't that make typing in textareas kinda slow?  If we reconstruct the frame, that means blowing away all the in-flows too...

	Robert O'Callahan (:roc) (email my personal email if necessary)
	Comment 3 • 18 years ago

It could be restricted to textframes in first-letters, probably.

	David Baron :dbaron: Reporter
	Comment 4 • 18 years ago

Bug 362880 comment 2 has some additional detail.

	Simon Montagu :smontagu
	Comment 5 • 15 years ago

I thought I had commented here a long time ago...

What would make this hard IMHO is that calculating the extent of the first-letter depends on cluster information which we get from textruns.

	David Baron :dbaron: Reporter
	Comment 6 • 15 years ago

Well, I suppose we could do it in a pass right after frame construction; that would be good enough to solve the intrinsic width problems.

	Robert O'Callahan (:roc) (email my personal email if necessary)
	Comment 7 • 15 years ago

We can calculate cluster information earlier if we need to.