Javier Fernández

A Coruña (Spain), 1977

I have been working at Igalia since January 2003, and people usually call me JaviF (Javi Fisterra) or jfernandez.

Latest Updates

Javier Fernández 09/10/2016

Web Engines Hackfest 2016

Last week I attended the Web Engines Hackfest 2016, hosted by Igalia at the HQ premises in A Coruña. For those still unaware, it’s a unconference like event focused on pure hacking and technical discussions about the main Web Engines supporting the...

Javier Fernández 24/06/2015

Performance on Grid Layout

Now that we have a quite complete implementation of CSS Grid Layout specification it’s time to take care of performance analysis and optimizations. In this essay, which is the first of a series of posts about performance, I’ll first introduce...

Javier Fernández 01/06/2015

Distributing tracks along Grid Layout container

In my last post I introduced the concept of Content Distribution alignment and how it affects Grid Layout implementation. At that time, it was possible to use all the <content-position> values to select grid tracks position inside a grid...

Javier Fernández 09/03/2015

Content Distribution in CSS Grid Layout

It’s been a while since Igalia and Bloomberg started to implement the Box Alignment specification for the CSS Grid Layout model. Some weeks ago we accomplished an important milestone of our roadmap landing in Blink trunk the last patches...

Javier Fernández 12/01/2015

Box Alignment and Grid Layout (II)

Some time has passed since my first post about the Box Alignment spec implementation status for Blink and WebKit web engines. I’ll do an update in this post and, since the gap between both web engines has grown considerably (I’ll do my best to...

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[css-grid] Use child's marginLogicalWidth to compute content-sized track

[css-grid] Use child's marginLogicalWidth to compute content-sized track When computing min-content and max-content of the content-sized tracks we are using the marginIntrinsicLogicalWidthForChild function, which uses the grid's writing-mode to...

Javier Fernández03/12/2016

Revert of "Use firstInFlowChildBox API for iterate over the grid items"

Revert of "Use firstInFlowChildBox API for iterate over the grid items" This reverts commit d0d28056752b04b36f5acce5452d1cd64ce4d5c3. BUG=662016

Javier Fernández25/11/2016

[css-grid] Implementing the grid's first line baseline.

[css-grid] Implementing the grid's first line baseline. Implementation of the 'first-line' baseline for Grid containers, according to the CSS Grid Layout spec. https://drafts.csswg.org/css-grid/#grid-baselines The self-baseline and...

Javier Fernández03/11/2016

Changeset [207663]: [css-grid] Content Alignment broken with indefinite sized grid container ...

5 edits in trunk [css-grid] Content Alignment broken with indefinite sized grid container ​https://bugs.webkit.org/show_bug.cgi?id=163724 Reviewed by Manuel Rego Casasnovas. Source/WebCore: The Grid Tracks sizing algorithm receives as parameter...

Javier Fernández21/10/2016

[css-grid] Computing free space on indefinite sized grids

[css-grid] Computing free space on indefinite sized grids The Grid Tracks sizing algorithm updates receives the available space to be used as space for tracks. We hold a variable to store the remaining free space for each dimension. When the grid...

Javier Fernández20/10/2016