fix(Icon, SVGIconContainer): add generic type param to specify root element type #6285
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fix(Icon, SVGIconContainer): add generic type param to specify root elementBuild artifact links for this commit: documentation | landing | table | demoThis is an automated comment from the deploy-preview CircleCI job. |
suppress prefer-arrow-callbackBuild artifact links for this commit: documentation | landing | table | demoThis is an automated comment from the deploy-preview CircleCI job. |
Merge remote-tracking branch 'origin/develop' into ad/icon-html-attributesBuild artifact links for this commit: documentation | landing | table | demoThis is an automated comment from the deploy-preview CircleCI job. |
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This change makes the props interface table a lot less usable than it used to be: 
Before: 
I'll look into improving this... |
update docsBuild artifact links for this commit: documentation | landing | table | demoThis is an automated comment from the deploy-preview CircleCI job. |
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Changes proposed in this pull request:
This fixes a regression in @blueprintjs/core v5.1.x where
<Icon>elements no longer accepted HTML attributes likedraggable={true}. Previously, these attributes were unsafely allowed to be forwarded to the root element of any<Icon>component, even whentagName={null}and those the root element was an<svg>element which should not accept them.After much iteration, I figured out a way to make
<Icon>and<SVGIconContainer>each have a generic type parameter (similar to<Select>). This turned out to be a lot harder to do for function components which useReact.forwardRef()than for class components. See my code comments for more info.I added documentation and test cases to demonstrate the new behavior. This may be a bit of overkill (we could be a little unsafe and just allow
React.HTMLAttributesto go through to<Icon>root elements), but it turned out to be an interesting exercise in exploring TypeScript generics & conditional types. I think it makes the public API a little more expressive.Reviewers should focus on:
No regressions in
<Icon>component props (these should be mostly covered by test cases).Screenshot
N/A