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Bootstrap/build/svgo.yml
Patrick H. Lauke c031584bcd
SVG accessibility fixes (#27826)
* SVG accessibility fixes

- add `focusable="false"` to all SVGs, to stop IE from including the `<svg>` in its default focus cycle
- completely hide decorative SVGs using `aria-hidden="true"`
- add `role="img"` to meaningful/"content" SVGs, ensure they have an appropriate `<title>` and/or `aria-label`
- simplify placeholder default title

* Simplify usage of placeholder.svg in the docs

- in most cases, no need for separate/redundant text and title (now that we make text itself part of the alternative text explicitly)
- no need (expect in rare cirumstances) to describe the placeholder image (unless the look of the image is important/the actual content, as is the case with the image thumbnail class)

* Simplify example.html rewriting of <svg> to <img> code sample

- as the `alt` for the placeholder isn't really important, just add an ellipsis instead (otherwise, to be correct, we'd have to construct the whole "title+text" construct like we do now in the
placeholder.svg itself

* Change svgo configuration to retain role attribute and add/force focusable=false

- regarding `focusable=false`, see https://github.com/svg/svgo/issues/1011 (which would be the "proper" SVGO fix) and the (hacky) solution https://github.com/svg/svgo/pull/817
2018-12-13 13:09:47 +00:00

58 lines
1.4 KiB
YAML

# Usage:
# install svgo globally: `npm i -g svgo`
# svgo --config=build/svgo.yml --input=foo.svg
# https://github.com/svg/svgo/blob/master/docs/how-it-works/en.md
# replace default config
multipass: true
#full: true
# https://github.com/svg/svgo/blob/master/lib/svgo/js2svg.js#L6 for more config options
js2svg:
pretty: true
indent: 2
plugins:
# remove this with IE 11 is no longer supported
- addAttributesToSVGElement:
attributes:
- focusable: false
- cleanupAttrs: true
- cleanupEnableBackground: true
- cleanupIDs: true
- cleanupListOfValues: true
- cleanupNumericValues: true
- collapseGroups: true
- convertColors: true
- convertPathData: true
- convertShapeToPath: true
- convertStyleToAttrs: true
- convertTransform: true
- inlineStyles: true
- mergePaths: true
- minifyStyles: true
- moveElemsAttrsToGroup: true
- moveGroupAttrsToElems: true
- removeComments: true
- removeDesc: true
- removeDoctype: true
- removeEditorsNSData: true
- removeEmptyAttrs: true
- removeEmptyContainers: true
- removeEmptyText: true
- removeHiddenElems: true
- removeMetadata: true
- removeNonInheritableGroupAttrs: true
- removeTitle: false
- removeUnknownsAndDefaults:
keepRoleAttr: true
- removeUnusedNS: true
- removeUselessDefs: true
- removeUselessStrokeAndFill: true
- removeViewBox: false
- removeXMLNS: false
- removeXMLProcInst: true
- sortAttrs: true