Tree view scrollbar and scrolling are disabled

[supremebeing7]

When the tree view is open in Atom Material theme, scrolling vertically and horizontally using mouse scroll wheel, touchpad, or keys does not work. The scrollbar is also not visible.

I believe I have verified this is an issue with Atom Material theme. Tree view scrolling works when switching to any other theme. It also works when Atom is opened in Safe Mode.

Reproduction Steps:

1. Open Atom tree view
2. Ensure Atom Material theme is enabled
3. Try to scroll in the tree view pane

Expected behavior:

Tree view should be, and used to be, scrollable, using mouse wheel or trackpad.

Observed behavior:

It does not react to any scroll wheel, trackpad, or keys.

Atom version: 1.17.0 OS and version: macOS 10.12.15

Installed packages:

Community Packages (26) ├── Sublime-Style-Column-Selection@1.7.4 ├── atom-emblem@0.3.0 ├── atom-material-ui@1.3.2 ├── autocomplete-ruby@0.2.8 ├── autohide-tree-view@0.25.1 ├── busy-signal@1.4.1 ├── file-icons@2.1.6 ├── guard-rspec@0.4.0 ├── highlight-selected@0.13.1 ├── intentions@1.1.2 ├── language-rspec@0.6.2 ├── language-slim@0.5.0 ├── linter@2.1.4 ├── linter-eslint@8.2.1 ├── linter-js-yaml@1.2.7 ├── linter-jsonlint@1.3.0 ├── linter-reek@2.2.1 ├── linter-rubocop@2.1.1 ├── linter-ruby@1.2.5 ├── linter-slim@1.0.0 ├── linter-ui-default@1.6.0 ├── markdown-preview-plus@2.4.9 ├── open-in-browser@0.5.0 ├── pigments@0.39.1 ├── ruby-test@1.0.2 └── sync-settings@0.8.1

[supremebeing7]

I added this to my custom stylesheet and it fixes it:

.tree-view {
  overflow: scroll;
}

Not sure if this is a problem for anyone else. If it's not, I guess I can close this issue, though I'm not sure why it just started happening. It may be that an Atom update messed it up - it seems like the new Dock feature made my tree view go haywire in a few other ways as well.

[silvestreh]

Did you upgrade to Material UI 2.0?

[supremebeing7]

😞 No. I was looking for an "Update" button in the Themes tab in Preferences. And I tried apm update atom-material-ui with no luck. But I just ran apm install atom-material-ui and it updated and the scroll bar works.

Feeling sheepish, but in my defense, it seems like if there are updates available for a theme, the Themes tab should show that?

Anyway, thanks.

[silvestreh]

Atom shows package updates in the status bar (in my case, I have 3 updates):

Which will take you to the Updates section in settings-view

From there you can either update all packages (including themes) or just take your picks and update them individually 😄

[supremebeing7]

I swear that's where I was looking and didn't see it, but it's been a long week, so 🤷‍♂️

Thanks!