[Bug]: WebBrowserComponent does not respect accept attribute on a file input

[dschrul]

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Detailed steps on how to reproduce the bug

Tested this on macOS, if you use WebBrowserComponent to display an html with a file input like this: <input type="file" accept="image/png" > The accept attribute is used to restrict the files that the user can select, it can either be a mime type or a list of file endings. Sadly this does not work in WebBrowserComponent, it always allows all files. There are two places in WebBrowserComponent where the FileChooser is opened with '*' as a file filter instead of the accept attribute from the input above: JUCE/modules/juce_gui_extra/native/juce_mac_WebBrowserComponent.mm:213 JUCE/modules/juce_gui_extra/native/juce_mac_WebBrowserComponent.mm:345

In my tests only the one on line 345 was called. I think the file filter from the input can be accessed through WKOpenPanelParameters (_allowedFileExtensions).

What is the expected behaviour?

Use the file filter that was defined on the file input.

Operating systems

macOS

What versions of the operating systems?

Ventura 13.2.1

Architectures

x86_64, ARM, Other, 64-bit, 32-bit

Stacktrace

No response

Plug-in formats (if applicable)

No response

Plug-in host applications (DAWs) (if applicable)

No response

Testing on the develop branch

I have not tested against the develop branch

Code of Conduct

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