MacDownApp / MacDownApp/macdown

Preview pane flickers when typing/updating

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bug help wanted
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Description

Seems that the bug from https://github.com/MacDownApp/macdown/issues/253 has come back in the latest build from master.

I get nasty flickering from the preview pane any time I type a keystroke.

Here's a demo video.

This is on a build of master as of today (March 13, 2019) on Mojave 10.14.3

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the flicker while typing in a master build on macOS Mojave, using the linked demo video and the earlier issue #253 for comparison. Trace the preview-pane update path and compare current behavior with the prior fix. Done means typing no longer causes visible preview flicker in the affected build.

Written by the indexing model from the issue text.

Assessment

Tech stack
macos, objective-c
Domain
desktop, frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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