ungoogled-software/ungoogled-chromium

hide close button("x") on first half(first tab) of "split view"

Open

#3771 opened on May 5, 2026

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enhancementhelp wanted

Description

Description

rewrite code tiny code using llm

Who's implementing?

  • I'm willing to implement this feature myself

The problem

sometimes misclick tab and close it instead

Possible solutions

suggesting hiding first close button when it switched "split view mode"

Alternatives

No response

Additional context

possible location of code: "chrome/browser/ui/views/tabs/tab.cc" "chrome/browser/ui/views/tabs/tab_close_button.h"

Contributor guide

Tech stack
cpp
Domain
frontend
Issue type
feature
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.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Basic C++ knowledgeUnderstanding of Chromium's tab UI
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
The issue suggests hiding the close button on the first tab in split view. The relevant files are chrome/browser/ui/views/tabs/tab.cc and chrome/browser/ui/views/tabs/tab close button.h. Look for the code that displays the close button and conditionally hide it when it is the first tab in a split view. The issue does not specify how to detect split view mode; further investigation into Chromium's split view implementation (e.g., in browser/ui/views/tabs/) is needed. Consider checking for existing methods like IsFirstTabInSplitView or similar.