w3c/csswg-drafts

[cssom-view] Screen#availLeft/availTop

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#1,090 opened on Mar 9, 2017

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Help Wantedcssom-view-1

Description

https://drafts.csswg.org/cssom-view/#the-screen-interface

availWidth and availHeight are in the spec, but not availLeft or availTop.

Those two attributes are in Chromium, Gecko and WebKit, but not EdgeHTML.

Use counters: https://www.chromestatus.com/metrics/feature/timeline/popularity/786 https://www.chromestatus.com/metrics/feature/timeline/popularity/787

There are 24,256 hits in httparchive for 'screen.availLeft', enough that I didn't try looking at how they're used.

@zcorpan

Contributor guide

Tech stack
htmlcss
Domain
apifrontend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
CSSOM View spec understandingfamiliarity with browser APIs
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
25
Research direction
Review the CSSOM View draft (https://drafts.csswg.org/cssom view/) for the Screen interface. Examine current implementations of availLeft and availTop in Chromium, Gecko, and WebKit to understand existing behavior. Analyze usage data from Chrome Platform Status links provided in the issue. Propose adding these attributes to the spec with consistent definition and cross browser compatibility notes.