Questions related to Layout and Fragment Tree

[Kiara]

Since I'm new to blink I wanted to know how do we obtain the immutable fragment tree from the layout tree.What methods facilates this.

[Ian Kilpatrick]

You can access the fragments via. LayoutBox::PhysicalFragments() . Note there may be more than one if the box has been fragmented (a child within a "columns: 2" element).

The easiest way to see the resulting fragment tree is via: ShowFragmentTree() -  https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/core/layout/ng/ng_physical_fragment.h;l=783;bpv=1;bpt=1?q=showfragmenttree&ss=chromium

Ian

On Thu, Apr 27, 2023 at 9:25 AM Kiara <shettyt...@gmail.com> wrote:

Since I'm new to blink I wanted to know how do we obtain the immutable fragment tree from the layout tree.What methods facilates this.

--
You received this message because you are subscribed to the Google Groups "blink-dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+...@chromium.org.
To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6351f0dd-6051-4f30-9b68-564707d2be0dn%40chromium.org.

[Kiara]

To see the resulting fragment tree is via: ShowFragmentTree() do we need to build the entire chromium in debug mode since it is invoked from debugger or is there an easier way to call the method? 

[Christian Biesinger]

You could use JsDbg if you have/can get symbols for your build (on
Windows you can use the symbol server):
https://github.com/MicrosoftEdge/JsDbg

> To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/afb2dcef-5b2d-4ad1-ab21-198b7dce6141n%40chromium.org.