Survey app accessibility

alan-turing-institute / teadt-community-survey

This is a repository for the TRIC-DT Innovation and impact hub community survey, forming part of the scoping research for the TEA-DT project

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Survey app accessibility #87

Open aranas opened 1 month ago

aranas commented 1 month ago

[ ] adding alt text to images
[ ] ensuring that screen readers read all elements of the survey

aranas commented 1 month ago

I'm afraid it is currently not possible to add alt text to images unfortunately. There is a recent open open issue on the streamlit website: https://github.com/streamlit/streamlit/issues/8563 I tried out two screen readers:

mac build-in VoicOver
firefox browser extension Pericles

Both didn't work great with the streamlit app. For example:

images were not recognized
captcha was completely ignored
Response options are not read out
help tooltips are not read out

@chrisdburr in our technical test meeting I thought you had mentioned there is a way to add alt text, do you remember where you saw this?

chrisdburr commented 1 month ago

I wasn't 100% about whether it would work, but I saw that markdown is supported for adding images, which means that (in principle) alt-text would be added in the usual way:

![Add alt text here](path/to/file.jpg)

aranas commented 1 month ago

Using markdown directly did not work for me, although a workaround image_to_html with 'alt' tag as suggested here seemed to be able to display the image. However, I still cannot assess if the alt-text is working as the image is not recognized by the screen readers I have tried. Might be that the free ones generally don't report images. I will try to find out how to properly assess our alt text.