allow_preview=False not working as expected in custom Gallery class

[zhristophe]

Describe the bug

I'm using a custom Gallery class that inherits from gr.Gallery in my Gradio application. I've set the allow_preview parameter to False when creating the Gallery instance, but the preview functionality is still being triggered when I click on the images.

Have you searched existing issues? 🔎

• I have searched and found no existing issues

Reproduction

1. Create a Gradio application with the following code:

if __name__ == "__main__":  
    class Gallery(gr.Gallery):  
        def __init__(self, **kwargs):  
            super().__init__(**kwargs)  

    with gr.Blocks() as demo:  
        gallery = Gallery(allow_preview=False)  
        imgs = gr.State()  
        print(gallery.allow_preview) 

        demo.load(lambda: ["hello.png"], None, gallery)
   
    demo.launch()

2. Run it, and observe that the print(gallery.allow_preview) statement outputs False, indicating that the allow_preview parameter is being set correctly.
3. Click on one of the images in the gallery.
4. Observe that the image is still being previewed, despite the allow_preview=False setting.

Screenshot

No response

Logs

No response

System Info

Gradio Environment Information:
------------------------------
Operating System: Windows
gradio version: 5.5.0
gradio_client version: 1.4.2

------------------------------------------------
gradio dependencies in your environment:

aiofiles: 23.2.1
anyio: 4.6.2.post1
audioop-lts is not installed.
fastapi: 0.115.4
ffmpy: 0.4.0
gradio-client==1.4.2 is not installed.
httpx: 0.27.2
huggingface-hub: 0.26.2
jinja2: 3.1.4
markupsafe: 2.1.5
numpy: 2.1.3
orjson: 3.10.11
packaging: 24.1
pandas: 2.2.3
pillow: 10.4.0
pydantic: 2.9.2
pydub: 0.25.1
python-multipart==0.0.12 is not installed.
pyyaml: 6.0.2
ruff: 0.7.2
safehttpx: 0.1.1
semantic-version: 2.10.0
starlette: 0.41.2
tomlkit==0.12.0 is not installed.
typer: 0.12.5
typing-extensions: 4.12.2
urllib3: 2.2.3
uvicorn: 0.32.0
authlib; extra == 'oauth' is not installed.
itsdangerous; extra == 'oauth' is not installed.


gradio_client dependencies in your environment:

fsspec: 2024.10.0
httpx: 0.27.2
huggingface-hub: 0.26.2
packaging: 24.1
typing-extensions: 4.12.2
websockets: 12.0

Severity

I can work around it

[abidlabs]

Hi @zhristophe can you explain why are you creating a custom subclass? We don't really support that usage.