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:
```json
editor.enablePreview
```
In addition to this value, the preference:
```json
list.openMode
```
must be set to "singleClick" to enable opening files in preview mode.
## Additional Information
- [API documentation for `@theia/editor-preview`](https://eclipse-theia.github.io/theia/docs/next/modules/_theia_editor-preview.html)
- [Theia - GitHub](https://github.com/eclipse-theia/theia)
- [Theia - Website](https://theia-ide.org/)
## License
- [Eclipse Public License 2.0](http://www.eclipse.org/legal/epl-2.0/)
- [δΈ€ (Secondary) GNU General Public License, version 2 with the GNU Classpath Exception](https://projects.eclipse.org/license/secondary-gpl-2.0-cp)
## Trademark
"Theia" is a trademark of the Eclipse Foundation