docs(dev): the viewer is a library, not an app - #15597
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📖 Documentation Preview📄 4 changed documentation pagesLast updated: Wed, 09 Sep 2026 18:04:33 GMT |
This was referenced Sep 9, 2026
The viewer app is gone from Nextcloud 36 and ships as @nextcloud/viewer. The manual still documented the app's own API: the LoadViewer event apps dispatched to ask it to load itself, and a development setup that cloned its repository, which is no longer needed now that every alwaysEnabled app lives in the server tree. The release notes gain what an app has to change: registering a handler, opening the viewer through getViewer() rather than OCA.Viewer, and the enabled preview providers, which moved from an initial state the app provided to core.previews.enabled_providers, documented with the other capabilities. Assisted-by: ClaudeCode:claude-opus-5 Signed-off-by: skjnldsv <skjnldsv@protonmail.com>
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☑️ Resolves
viewerappThe viewer ships as
@nextcloud/viewernow, so the manual documented an app that will not be there:\OCA\Viewer\Event\LoadViewerin the events list — apps dispatched it to ask the viewer app to load itself, and there is nothing to dispatch to any morenextcloud/viewerunder "Check out external shipped apps". That section existed only for the viewer, and with it gone every app underalwaysEnabledlives in the server tree, so it goes tooThe release notes gain what an app actually has to change: registering a handler,
getViewer().open([node], node)andcanView(node)in place ofOCA.Viewer, and the enabled preview providers, which moved from an initial state the app provided to thecore.previews.enabled_providerscapability. That capability is documented next to the theming one in the OCS overview, with aversionadded:: 36.🖼️ Screenshots
✅ Checklist
codespellor similar and addressed any spelling issues👾 This pull request was assisted by Claude Code, commits carry an
Assisted-bytrailer.