extensions: show extensions decorations in separate columns as experimental feature
Created by: taras-yemets
First iteration on https://github.com/sourcegraph/sourcegraph/issues/17434
When experimentalFeatures.enableExtensionsDecorationsColumnView setting is enabled:
- extension decorations supporting the column view (as for now, git-extras is the only extension supporting the column view: https://github.com/sourcegraph/sourcegraph-git-extras/pull/276) will be rendered in a separate column on the blob page
- extensions decorations are not rendered in the new reference panel blob view
- extension decorations for the diff view and browser extension (native integrations) remain unchanged.
Context: we're investigating the possibility of showing extensions decorations in separate columns (Figma). This PR is the first iteration touching only git-extras extension. We're going to dogfood it internally, then, depending on the feedback, enhance git blame and proceed with other extensions.
Should be merged with https://github.com/sourcegraph/sourcegraph-git-extras/pull/276
| Experimental feature disabled | Experimental feature enabled | |
|---|---|---|
| Git-extras |  |
hover on blame decoration  hover on blame decoration when line is selected  keyboard navigation (Tab, Shift+Tab) when line is selected 
|
| Git-extras + codecov |  |
 with tooltip 
|
Test plan
sg run web-standalone- (optional) sideload git-extras extension with https://github.com/sourcegraph/sourcegraph-git-extras/pull/276 revision to have only two blame states: show for the whole file and off (if sideloaded edit extensionID to be
git-extras) - ensure git blame on the blob page is displayed in a separate column
- ensure the file diff view and the browser extension blame display remain unchanged
App preview:
Check out the client app preview documentation to learn more.