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2026-02-27 12:01:08 -08:00

1.9 KiB


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ECLIPSE THEIA - EDITOR-PREVIEW EXTENSION


Description

The @theia/editor-preview extension contributes the preview editor which supports the same functionality as a regular editor widget with the exception:

  • if a preview editor has not "transitioned to a permanent editor" at the time an additional request to preview a file is received, instead of opening a new editor, it will display the contents of the newly requested file.

Events that will transition the preview to a permanent editor are as follows:

  • Modifying file contents being previewed
  • Double clicking the preview tab
  • Performing a drag/drop operation of the editor preview tab resulting in the tab being moved.
  • Issuing a request to open the file being previewed (e.g. double clicking the file in the navigator)

The preview editor is enabled by default when the extension is included in a Theia application, but may be disabled by modifying the preference:

editor.enablePreview

In addition to this value, the preference:

list.openMode

must be set to "singleClick" to enable opening files in preview mode.

Additional Information

License

Trademark

"Theia" is a trademark of the Eclipse Foundation https://www.eclipse.org/theia