Graph sidebar: Ctrl+Shift+P and other keyboard shortcuts blocked by tree type-ahead search

[nikolay-1986]

Summary

When focus is inside a Graph sidebar panel (Agents, Worktrees, Branches, Remotes, Stashes, Tags — anything except Overview) with a selected tree item, Ctrl+Shift+P does not open the Command Palette. Other modifier-based keyboard shortcuts using printable characters are likely affected as well. The issue does not reproduce on non-Latin keyboard layouts (e.g. Russian), only on English/Latin layouts.

Impact

Users lose access to the Command Palette and potentially other VS Code keyboard shortcuts while interacting with the Graph sidebar tree views.

Root Cause

The gl-tree-generator component's type-ahead search handler (handleContainerKeydown in src/webviews/apps/shared/components/tree/tree-generator.ts:993-1000) calls preventDefault() and stopPropagation() for any key matching /^[a-zA-Z0-9\s\-_.]$/ without checking for modifier keys (Ctrl, Meta, Alt).

On an English keyboard layout, Ctrl+Shift+P produces event.key === "P", which matches the regex and gets swallowed by the type-ahead handler. On a Russian layout, Ctrl+Shift+P produces a Cyrillic character for event.key that does not match the regex, so the event propagates normally.

// tree-generator.ts:993-1000
default: {
    if (this.isPrintableCharacter(e.key)) {
        e.preventDefault();     // blocks the shortcut
        e.stopPropagation();    // prevents VS Code from seeing it
        this.handleTypeAhead(e.key);
        return;
    }
    break;
}

Validation

1. Open the Commit Graph with gitlens.graph.experimentalFeatures.enabled: true
2. Open any sidebar panel except Overview (e.g. Branches)
3. Click on a tree item to give it focus
4. Press Ctrl+Shift+P — Command Palette does not open
5. Switch to a non-Latin keyboard layout and press Ctrl+Shift+P — Command Palette opens

Risk

The fix scope is limited to adding a modifier-key guard in the type-ahead handler. No impact on type-ahead search functionality since type-ahead should only activate on plain character input without Ctrl/Meta/Alt modifiers.

VSCode Version

Version: 1.120.0 (user setup)
Commit: 0958016b2af9f09bb4257e0df4a95e2f90590f9f
Date: 2026-05-12T20:17:22Z
Electron: 39.8.8
ElectronBuildId: 13870025
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.26200

Gitlens pre-release version

2026.5.130557

Note: Discovered while testing #5175

[nikolay-1986]

@d13 - Please prioritize the issue.