Crash when the new layout panel is in popover #117168

New Issue

Sun Kim · 2024-01-16T14:30:53+01:00

Sun Kim commented

2024-01-16 14:30:53 +01:00

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2060 SUPER/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 546.17

Blender Version
Broken: version: 4.1.0 Alpha, branch: main, commit date: 2024-01-15 19:27, hash: 0f8c8e475a11
Worked: n/a

Short description of error
When the new layout panel is used in a panel that will be shown as popover, Blender crashes as soon as the popover is open.

Discovered while considering the new panel as one of possible options for this PR.

Exact steps for others to reproduce the error

On the code for VIEW3D_PT_tools_object_options_transform (a panel visible in the UI through the Sidebar or the 'Options' popover), add the following:

        if panel := layout.panel("my_panel_id", text="Hello World", default_closed=False):
            panel.label(text="Success")

Run the script
Expand the 'Options' popover

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2060 SUPER/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 546.17 **Blender Version** Broken: version: 4.1.0 Alpha, branch: main, commit date: 2024-01-15 19:27, hash: `0f8c8e475a11` Worked: n/a **Short description of error** When [the new layout panel](https://developer.blender.org/docs/release_notes/4.1/python_api/#layout-panels) is used in a panel that will be shown as popover, Blender crashes as soon as the popover is open. <video src="/attachments/76b3cea2-0de8-4392-8199-d8a10560aa13" title="crash_layout_panel_in_popover.mp4" controls></video> Discovered while considering the new panel as one of possible options for [this PR](https://projects.blender.org/blender/blender/pulls/112915#issuecomment-1102833). **Exact steps for others to reproduce the error** - On the code for `VIEW3D_PT_tools_object_options_transform` (a panel visible in the UI through the Sidebar or the 'Options' popover), add the following: ```python if panel := layout.panel("my_panel_id", text="Hello World", default_closed=False): panel.label(text="Success") ``` - Run the script - Expand the 'Options' popover

crash_layout_panel_in_popover.mp4

803 KiB

Sun Kim added the

labels 2024-01-16 14:30:54 +01:00

Iliya Katushenock added the