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Editor should focus on source code when clicking on stack frames if the source code is currently focused #251241

@Schpoone

Description

@Schpoone

Type: Bug

The expected behavior is that clicking on a stack frame when the source code is focused should keep focus on the source code and jump to the associated line. When the disassembly view is focused, clicking on a stack frame should keep the disassembly view focused and jump to the associated instruction.
This works as expected until a step is performed with the disassembly view focused. Then, clicking on stack frames always focuses on the disassembly view, even if the source code is refocused.
The expected behavior comes back if another step is performed with the source code focused.

This video shows the expected behavior and then the behavior after stepping:

vscode_disassembly_focus_issue.mp4

Steps to Reproduce:

  1. Start a debug session with the mock-debug extension
  2. Step until execution reaches line 55 (the paragraph under the "Disassembly View" heading)
  3. Open the disassembly view with the context menu for the editor or any stack frames
  4. With the disassembly view focused, step over, causing execution to step to the next word
  5. Refocus the markdown file window
  6. Click on any stack frames
  7. See that the focus jumps back to the disassembly view

This issue should also be reproducible if you use "Step Into", "Step Out", or "Step Back" with the disassembly view focused.

VS Code version: Code 1.100.3 (258e40f, 2025-06-02T13:30:54.273Z)
OS version: Linux x64 6.14.6-arch1-1
Modes:

System Info
Item Value
CPUs AMD Ryzen Threadripper 1950X 16-Core Processor (32 x 2793)
GPU Status 2d_canvas: enabled
canvas_oop_rasterization: enabled_on
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_graphite: disabled_off
video_decode: enabled
video_encode: disabled_software
vulkan: disabled_off
webgl: enabled
webgl2: enabled
webgpu: disabled_off
webnn: disabled_off
Load (avg) 2, 1, 2
Memory (System) 62.66GB (46.69GB free)
Process Argv --crash-reporter-id 7d5ad6ef-34f6-4670-aa76-057c6dedc880
Screen Reader no
VM 0%
DESKTOP_SESSION hyprland
XDG_CURRENT_DESKTOP Hyprland
XDG_SESSION_DESKTOP hyprland
XDG_SESSION_TYPE wayland
Extensions: none
A/B Experiments
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