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Editing a Markdown file while preview is open creates a scrolling issue #62731

Closed cfjedimaster closed 4 years ago

cfjedimaster commented 5 years ago

We have written the needed Issue Type: Bug

Edit a Markdown file. Turn on the preview. Get to the bottom of the screen and odd 'jumping' occurs.

Video demonstration: https://www.youtube.com/watch?v=0ppuixZ5q9Q&feature=youtu.be

VS Code version: Code - Insiders 1.29.0-insider (5438af145cf480ce0162bda0799435684b293ec5, 2018-11-07T01:01:54.305Z) OS version: Windows_NT x64 10.0.17134

System Info |Item|Value| |---|---| |CPUs|Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz (8 x 4008)| |GPU Status|2d_canvas: enabled
checker_imaging: disabled_off
flash_3d: enabled
flash_stage3d: enabled
flash_stage3d_baseline: enabled
gpu_compositing: enabled
multiple_raster_threads: enabled_on
native_gpu_memory_buffers: disabled_software
rasterization: enabled
video_decode: enabled
video_encode: enabled
webgl: enabled
webgl2: enabled| |Memory (System)|15.90GB (4.01GB free)| |Process Argv|| |Screen Reader|no| |VM|0%|
Extensions (27) Extension|Author (truncated)|Version ---|---|--- Bookmarks|ale|9.2.0 copy-relative-path|ale|0.0.2 spellright|ban|3.0.6 markdown-preview-github-styles|bie|0.1.4 better-toml|bun|0.3.2 npm-intellisense|chr|1.3.0 bracket-pair-colorizer|Coe|1.0.60 prettier-vscode|esb|1.7.1 coldfusion|ili|1.0.1 Angular2|joh|7.0.1 wordcounter|kir|1.4.0 dotenv|mik|1.0.1 vscode-azureappservice|ms-|0.9.1 vscode-azurefunctions|ms-|0.12.0 azure-account|ms-|0.5.1 vetur|oct|0.13.0 vscode-snyk|pmb|0.0.2 polacode|pnp|0.2.2 htmlescape-vscode-extension|ray|0.0.4 vscode-yaml|red|0.1.0 vue-vscode-extensionpack|sdr|0.1.3 vue-vscode-snippets|sdr|1.3.0 code-settings-sync|Sha|3.2.0 vscode-status-bar-format-toggle|tom|1.4.0 vscode-jumpy|wma|0.3.1 nativescript-ng2-snippets|www|2.0.1 JavaScriptSnippets|xab|1.7.1 (2 theme extensions excluded)
vscodebot[bot] commented 5 years ago

(Experimental duplicate detection) Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

mjbvz commented 5 years ago

Can you please share your markdown file

cfjedimaster commented 5 years ago

I don't know if I have that file as it was a month ago, but the last MD file I worked on had the same issue. It should be any longish markdown. This one demonstrates it: https://github.com/cfjedimaster/raymondcamden2018/blob/master/_posts/2018/11/28/2018-11-28-adding-ice-bear-to-alexa-because-why-not.md

mjbvz commented 5 years ago

Can you please test this in the next 1.31 insiders build. I can't repo this using the example markdown you shared

cfjedimaster commented 5 years ago

I think it is fixed now. (I'd close but not sure if that's ok. ;)

cfjedimaster commented 5 years ago

Ok sorry, but I'm seeing the issue still. This is with today's Insider Build and this (as of right now) input:

https://gist.github.com/cfjedimaster/3e1adce24f4ed7c86c2d9d6dca93bdce

mjbvz commented 5 years ago

Where are you typing in the file? I can't repo in 1.31

cfjedimaster commented 5 years ago

At the end of the file.

liushulun commented 4 years ago

This still occurs in 1.40.2, since several months ago. I've got the exactly same experiment as @cfjedimaster just like the video shows. This issue is NOT related with languages, markdown files, files size, OS, and content types, based on what I've tested.

liushulun commented 4 years ago

This still occurs in 1.40.2, since several months ago. I've got the exactly same experiment as @cfjedimaster just like the video shows. This issue is NOT related with languages, markdown files, files size, OS, and content types, based on what I've tested.

By contrast, the extension "Markdown Preview Enhanced" works perfectly with editor. Close preview or disable "scroll editor with preview" will not cause this issue, thus I personally suspect this issue is from scrolling synchronization of built-in markdown preview.

cfjedimaster commented 4 years ago

I can confirm I saw it a few days ago as well - and didn't have time to come back and edit the bug, so thank you @SLLiu96 !

github-actions[bot] commented 4 years ago

Hey @mjbvz, this issue might need further attention.

@cfjedimaster, you can help us out by closing this issue if the problem no longer exists, or adding more information.

cfjedimaster commented 4 years ago

I'm not able to reproduce this with the latest Insiders.

cfjedimaster commented 4 years ago

Well, sorry to say I've got it again. I made a screen recording. Latest Insider.

Demo video: https://www.youtube.com/watch?v=vfwrB7I5_yk&feature=youtu.be