eclipse-theia/theia

Editor tabs duplication for 'untitled' and 'file' schemes for the same path

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#7,213 opened on Feb 25, 2020

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Description

Description

Duplicate editors for untitled and file schemes for the same path. When the user calls the "showTextDocument" API (with "untitled" scheme and a non existing path ) a new tab is opened ( as expected). The user can edit the file and click 'CTRL+s' to save the file ( and the file is saved --> also as expected). But when the user then go to file-->open and navigate to the saved file and choose to open it --> a new tab is opened ( and we have duplication of the same tab ).

Contributor guide

Tech stack
typescript
Domain
desktop
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
TypeScriptTheia editor architecture
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate the editor tab lifecycle in Theia, focusing on how 'showTextDocument' handles untitled vs file schemes. Look at the source files related to editor tabs, such as 'editor manager.ts' or 'tab bar' widgets. Check if there is logic to reuse existing tabs when the same file path is opened. Consider implementing deduplication by comparing the resource URI after saving.