firefox-devtools/profiler

Flame graph shifts when source view is opened

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#3,830 opened on Jan 24, 2022

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 (2 comments) (0 reactions) (0 assignees)TypeScript (486 forks)auto 404
flame graphhelp wantedpolishsource view

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Description

Profile: https://share.firefox.dev/3rKKxGY

Steps to reproduce:

  1. Double click a function in the flame graph.

Expected results: The source view should open and the flame graph's contents should stay where they are.

Actual results: When the source view opens, the flame graph's contents are moved upwards by the source view height. The function you just double-clicked is no longer under the mouse, and in fact it might be pushed completely offscreen.

┆Issue is synchronized with this Jira Task

Contributor guide

Research direction
Investigate how the source view opening triggers a layout shift in the flame graph. Focus on the container dimensions and any CSS transitions or animations that might cause the content to move upwards.
Tech stack
typescript
Domain
frontend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitReactTypeScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75